xref: /freebsd/contrib/llvm-project/clang/include/clang/Basic/DiagnosticSemaKinds.td (revision cfd6422a5217410fbd66f7a7a8a64d9d85e61229)
1//==--- DiagnosticSemaKinds.td - libsema diagnostics ----------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9//===----------------------------------------------------------------------===//
10// Semantic Analysis
11//===----------------------------------------------------------------------===//
12
13let Component = "Sema" in {
14let CategoryName = "Semantic Issue" in {
15def note_previous_decl : Note<"%0 declared here">;
16def note_entity_declared_at : Note<"%0 declared here">;
17def note_callee_decl : Note<"%0 declared here">;
18def note_defined_here : Note<"%0 defined here">;
19
20// For loop analysis
21def warn_variables_not_in_loop_body : Warning<
22  "variable%select{s| %1|s %1 and %2|s %1, %2, and %3|s %1, %2, %3, and %4}0 "
23  "used in loop condition not modified in loop body">,
24  InGroup<ForLoopAnalysis>, DefaultIgnore;
25def warn_redundant_loop_iteration : Warning<
26  "variable %0 is %select{decremented|incremented}1 both in the loop header "
27  "and in the loop body">,
28  InGroup<ForLoopAnalysis>, DefaultIgnore;
29def note_loop_iteration_here : Note<"%select{decremented|incremented}0 here">;
30
31def warn_duplicate_enum_values : Warning<
32  "element %0 has been implicitly assigned %1 which another element has "
33  "been assigned">, InGroup<DiagGroup<"duplicate-enum">>, DefaultIgnore;
34def note_duplicate_element : Note<"element %0 also has value %1">;
35
36// Absolute value functions
37def warn_unsigned_abs : Warning<
38  "taking the absolute value of unsigned type %0 has no effect">,
39  InGroup<AbsoluteValue>;
40def note_remove_abs : Note<
41  "remove the call to '%0' since unsigned values cannot be negative">;
42def warn_abs_too_small : Warning<
43  "absolute value function %0 given an argument of type %1 but has parameter "
44  "of type %2 which may cause truncation of value">, InGroup<AbsoluteValue>;
45def warn_wrong_absolute_value_type : Warning<
46  "using %select{integer|floating point|complex}1 absolute value function %0 "
47  "when argument is of %select{integer|floating point|complex}2 type">,
48  InGroup<AbsoluteValue>;
49def note_replace_abs_function : Note<"use function '%0' instead">;
50def warn_pointer_abs : Warning<
51  "taking the absolute value of %select{pointer|function|array}0 type %1 is suspicious">,
52  InGroup<AbsoluteValue>;
53
54def warn_max_unsigned_zero : Warning<
55  "taking the max of "
56  "%select{a value and unsigned zero|unsigned zero and a value}0 "
57  "is always equal to the other value">,
58  InGroup<MaxUnsignedZero>;
59def note_remove_max_call : Note<
60  "remove call to max function and unsigned zero argument">;
61
62def warn_infinite_recursive_function : Warning<
63  "all paths through this function will call itself">,
64  InGroup<InfiniteRecursion>, DefaultIgnore;
65
66def warn_comma_operator : Warning<"possible misuse of comma operator here">,
67  InGroup<DiagGroup<"comma">>, DefaultIgnore;
68def note_cast_to_void : Note<"cast expression to void to silence warning">;
69
70// Constant expressions
71def err_expr_not_ice : Error<
72  "expression is not an %select{integer|integral}0 constant expression">;
73def ext_expr_not_ice : Extension<
74  "expression is not an %select{integer|integral}0 constant expression; "
75  "folding it to a constant is a GNU extension">, InGroup<GNUFoldingConstant>;
76def err_typecheck_converted_constant_expression : Error<
77  "value of type %0 is not implicitly convertible to %1">;
78def err_typecheck_converted_constant_expression_disallowed : Error<
79  "conversion from %0 to %1 is not allowed in a converted constant expression">;
80def err_typecheck_converted_constant_expression_indirect : Error<
81  "conversion from %0 to %1 in converted constant expression would "
82  "bind reference to a temporary">;
83def err_expr_not_cce : Error<
84  "%select{case value|enumerator value|non-type template argument|"
85  "array size|constexpr if condition|explicit specifier argument}0 "
86  "is not a constant expression">;
87def ext_cce_narrowing : ExtWarn<
88  "%select{case value|enumerator value|non-type template argument|"
89  "array size|constexpr if condition|explicit specifier argument}0 "
90  "%select{cannot be narrowed from type %2 to %3|"
91  "evaluates to %2, which cannot be narrowed to type %3}1">,
92  InGroup<CXX11Narrowing>, DefaultError, SFINAEFailure;
93def err_ice_not_integral : Error<
94  "integral constant expression must have integral or unscoped enumeration "
95  "type, not %0">;
96def err_ice_incomplete_type : Error<
97  "integral constant expression has incomplete class type %0">;
98def err_ice_explicit_conversion : Error<
99  "integral constant expression requires explicit conversion from %0 to %1">;
100def note_ice_conversion_here : Note<
101  "conversion to %select{integral|enumeration}0 type %1 declared here">;
102def err_ice_ambiguous_conversion : Error<
103  "ambiguous conversion from type %0 to an integral or unscoped "
104  "enumeration type">;
105def err_ice_too_large : Error<
106  "integer constant expression evaluates to value %0 that cannot be "
107  "represented in a %1-bit %select{signed|unsigned}2 integer type">;
108def err_expr_not_string_literal : Error<"expression is not a string literal">;
109
110// Semantic analysis of constant literals.
111def ext_predef_outside_function : Warning<
112  "predefined identifier is only valid inside function">,
113  InGroup<DiagGroup<"predefined-identifier-outside-function">>;
114def warn_float_overflow : Warning<
115  "magnitude of floating-point constant too large for type %0; maximum is %1">,
116   InGroup<LiteralRange>;
117def warn_float_underflow : Warning<
118  "magnitude of floating-point constant too small for type %0; minimum is %1">,
119  InGroup<LiteralRange>;
120def warn_double_const_requires_fp64 : Warning<
121  "double precision constant requires cl_khr_fp64, casting to single precision">;
122def err_half_const_requires_fp16 : Error<
123  "half precision constant requires cl_khr_fp16">;
124
125// C99 variable-length arrays
126def ext_vla : Extension<"variable length arrays are a C99 feature">,
127  InGroup<VLAExtension>;
128def warn_vla_used : Warning<"variable length array used">,
129  InGroup<VLA>, DefaultIgnore;
130def err_vla_in_sfinae : Error<
131  "variable length array cannot be formed during template argument deduction">;
132def err_array_star_in_function_definition : Error<
133  "variable length array must be bound in function definition">;
134def err_vla_decl_in_file_scope : Error<
135  "variable length array declaration not allowed at file scope">;
136def err_vla_decl_has_static_storage : Error<
137  "variable length array declaration cannot have 'static' storage duration">;
138def err_vla_decl_has_extern_linkage : Error<
139  "variable length array declaration cannot have 'extern' linkage">;
140def ext_vla_folded_to_constant : Extension<
141  "variable length array folded to constant array as an extension">, InGroup<GNUFoldingConstant>;
142def err_vla_unsupported : Error<
143  "variable length arrays are not supported for the current target">;
144def note_vla_unsupported : Note<
145  "variable length arrays are not supported for the current target">;
146
147// C99 variably modified types
148def err_variably_modified_template_arg : Error<
149  "variably modified type %0 cannot be used as a template argument">;
150def err_variably_modified_nontype_template_param : Error<
151  "non-type template parameter of variably modified type %0">;
152def err_variably_modified_new_type : Error<
153  "'new' cannot allocate object of variably modified type %0">;
154
155// C99 Designated Initializers
156def ext_designated_init : Extension<
157  "designated initializers are a C99 feature">, InGroup<C99Designator>;
158def err_array_designator_negative : Error<
159  "array designator value '%0' is negative">;
160def err_array_designator_empty_range : Error<
161  "array designator range [%0, %1] is empty">;
162def err_array_designator_non_array : Error<
163  "array designator cannot initialize non-array type %0">;
164def err_array_designator_too_large : Error<
165  "array designator index (%0) exceeds array bounds (%1)">;
166def err_field_designator_non_aggr : Error<
167  "field designator cannot initialize a "
168  "%select{non-struct, non-union|non-class}0 type %1">;
169def err_field_designator_unknown : Error<
170  "field designator %0 does not refer to any field in type %1">;
171def err_field_designator_nonfield : Error<
172  "field designator %0 does not refer to a non-static data member">;
173def note_field_designator_found : Note<"field designator refers here">;
174def err_designator_for_scalar_or_sizeless_init : Error<
175  "designator in initializer for %select{scalar|indivisible sizeless}0 "
176  "type %1">;
177def warn_initializer_overrides : Warning<
178  "initializer %select{partially |}0overrides prior initialization of "
179  "this subobject">, InGroup<InitializerOverrides>;
180def ext_initializer_overrides : ExtWarn<warn_initializer_overrides.Text>,
181  InGroup<InitializerOverrides>, SFINAEFailure;
182def err_initializer_overrides_destructed : Error<
183  "initializer would partially override prior initialization of object of "
184  "type %1 with non-trivial destruction">;
185def note_previous_initializer : Note<
186  "previous initialization %select{|with side effects }0is here"
187  "%select{| (side effects will not occur at run time)}0">;
188def err_designator_into_flexible_array_member : Error<
189  "designator into flexible array member subobject">;
190def note_flexible_array_member : Note<
191  "initialized flexible array member %0 is here">;
192def ext_flexible_array_init : Extension<
193  "flexible array initialization is a GNU extension">, InGroup<GNUFlexibleArrayInitializer>;
194
195// C++20 designated initializers
196def ext_cxx_designated_init : Extension<
197  "designated initializers are a C++20 extension">, InGroup<CXX20Designator>;
198def warn_cxx17_compat_designated_init : Warning<
199  "designated initializers are incompatible with C++ standards before C++20">,
200  InGroup<CXXPre20CompatPedantic>, DefaultIgnore;
201def ext_designated_init_mixed : ExtWarn<
202  "mixture of designated and non-designated initializers in the same "
203  "initializer list is a C99 extension">, InGroup<C99Designator>;
204def note_designated_init_mixed : Note<
205  "first non-designated initializer is here">;
206def ext_designated_init_array : ExtWarn<
207  "array designators are a C99 extension">, InGroup<C99Designator>;
208def ext_designated_init_nested : ExtWarn<
209  "nested designators are a C99 extension">, InGroup<C99Designator>;
210def ext_designated_init_reordered : ExtWarn<
211  "ISO C++ requires field designators to be specified in declaration order; "
212  "field %1 will be initialized after field %0">, InGroup<ReorderInitList>,
213  SFINAEFailure;
214def note_previous_field_init : Note<
215  "previous initialization for field %0 is here">;
216
217// Declarations.
218def ext_plain_complex : ExtWarn<
219  "plain '_Complex' requires a type specifier; assuming '_Complex double'">;
220def ext_imaginary_constant : Extension<
221  "imaginary constants are a GNU extension">, InGroup<GNUImaginaryConstant>;
222def ext_integer_complex : Extension<
223  "complex integer types are a GNU extension">, InGroup<GNUComplexInteger>;
224
225def err_invalid_saturation_spec : Error<"'_Sat' specifier is only valid on "
226  "'_Fract' or '_Accum', not '%0'">;
227def err_invalid_sign_spec : Error<"'%0' cannot be signed or unsigned">;
228def err_invalid_width_spec : Error<
229  "'%select{|short|long|long long}0 %1' is invalid">;
230def err_invalid_complex_spec : Error<"'_Complex %0' is invalid">;
231
232def ext_auto_type_specifier : ExtWarn<
233  "'auto' type specifier is a C++11 extension">, InGroup<CXX11>;
234def warn_auto_storage_class : Warning<
235  "'auto' storage class specifier is redundant and incompatible with C++11">,
236  InGroup<CXX11Compat>, DefaultIgnore;
237
238def warn_deprecated_register : Warning<
239  "'register' storage class specifier is deprecated "
240  "and incompatible with C++17">, InGroup<DeprecatedRegister>;
241def ext_register_storage_class : ExtWarn<
242  "ISO C++17 does not allow 'register' storage class specifier">,
243  DefaultError, InGroup<Register>;
244
245def err_invalid_decl_spec_combination : Error<
246  "cannot combine with previous '%0' declaration specifier">;
247def err_invalid_vector_decl_spec_combination : Error<
248  "cannot combine with previous '%0' declaration specifier. "
249  "'__vector' must be first">;
250def err_invalid_pixel_decl_spec_combination : Error<
251  "'__pixel' must be preceded by '__vector'.  "
252  "'%0' declaration specifier not allowed here">;
253def err_invalid_vector_bool_decl_spec : Error<
254  "cannot use '%0' with '__vector bool'">;
255def err_invalid_vector_long_decl_spec : Error<
256  "cannot use 'long' with '__vector'">;
257def err_invalid_vector_float_decl_spec : Error<
258  "cannot use 'float' with '__vector'">;
259def err_invalid_vector_double_decl_spec : Error <
260  "use of 'double' with '__vector' requires VSX support to be enabled "
261  "(available on POWER7 or later)">;
262def err_invalid_vector_bool_int128_decl_spec : Error <
263  "use of '__int128' with '__vector bool' requires VSX support enabled (on "
264  "POWER10 or later)">;
265def err_invalid_vector_long_long_decl_spec : Error <
266  "use of 'long long' with '__vector bool' requires VSX support (available on "
267  "POWER7 or later) or extended Altivec support (available on POWER8 or later) "
268  "to be enabled">;
269def err_invalid_vector_long_double_decl_spec : Error<
270  "cannot use 'long double' with '__vector'">;
271def warn_vector_long_decl_spec_combination : Warning<
272  "Use of 'long' with '__vector' is deprecated">, InGroup<Deprecated>;
273
274def err_redeclaration_different_type : Error<
275  "redeclaration of %0 with a different type%diff{: $ vs $|}1,2">;
276def err_bad_variable_name : Error<
277  "%0 cannot be the name of a variable or data member">;
278def err_bad_parameter_name : Error<
279  "%0 cannot be the name of a parameter">;
280def err_bad_parameter_name_template_id : Error<
281  "parameter name cannot have template arguments">;
282def ext_parameter_name_omitted_c2x : ExtWarn<
283  "omitting the parameter name in a function definition is a C2x extension">,
284  InGroup<C2x>;
285def err_anyx86_interrupt_attribute : Error<
286  "%select{x86|x86-64}0 'interrupt' attribute only applies to functions that "
287  "have %select{a 'void' return type|"
288  "only a pointer parameter optionally followed by an integer parameter|"
289  "a pointer as the first parameter|a %2 type as the second parameter}1">;
290def err_anyx86_interrupt_called : Error<
291  "interrupt service routine cannot be called directly">;
292def warn_arm_interrupt_calling_convention : Warning<
293   "call to function without interrupt attribute could clobber interruptee's VFP registers">,
294   InGroup<Extra>;
295def warn_interrupt_attribute_invalid : Warning<
296   "%select{MIPS|MSP430|RISC-V}0 'interrupt' attribute only applies to "
297   "functions that have %select{no parameters|a 'void' return type}1">,
298   InGroup<IgnoredAttributes>;
299def warn_riscv_repeated_interrupt_attribute : Warning<
300  "repeated RISC-V 'interrupt' attribute">, InGroup<IgnoredAttributes>;
301def note_riscv_repeated_interrupt_attribute : Note<
302  "repeated RISC-V 'interrupt' attribute is here">;
303def warn_unused_parameter : Warning<"unused parameter %0">,
304  InGroup<UnusedParameter>, DefaultIgnore;
305def warn_unused_variable : Warning<"unused variable %0">,
306  InGroup<UnusedVariable>, DefaultIgnore;
307def warn_unused_local_typedef : Warning<
308  "unused %select{typedef|type alias}0 %1">,
309  InGroup<UnusedLocalTypedef>, DefaultIgnore;
310def warn_unused_property_backing_ivar :
311  Warning<"ivar %0 which backs the property is not "
312  "referenced in this property's accessor">,
313  InGroup<UnusedPropertyIvar>, DefaultIgnore;
314def warn_unused_const_variable : Warning<"unused variable %0">,
315  InGroup<UnusedConstVariable>, DefaultIgnore;
316def warn_unused_exception_param : Warning<"unused exception parameter %0">,
317  InGroup<UnusedExceptionParameter>, DefaultIgnore;
318def warn_decl_in_param_list : Warning<
319  "declaration of %0 will not be visible outside of this function">,
320  InGroup<Visibility>;
321def warn_redefinition_in_param_list : Warning<
322  "redefinition of %0 will not be visible outside of this function">,
323  InGroup<Visibility>;
324def warn_empty_parens_are_function_decl : Warning<
325  "empty parentheses interpreted as a function declaration">,
326  InGroup<VexingParse>;
327def warn_parens_disambiguated_as_function_declaration : Warning<
328  "parentheses were disambiguated as a function declaration">,
329  InGroup<VexingParse>;
330def warn_parens_disambiguated_as_variable_declaration : Warning<
331  "parentheses were disambiguated as redundant parentheses around declaration "
332  "of variable named %0">, InGroup<VexingParse>;
333def warn_redundant_parens_around_declarator : Warning<
334  "redundant parentheses surrounding declarator">,
335  InGroup<DiagGroup<"redundant-parens">>, DefaultIgnore;
336def note_additional_parens_for_variable_declaration : Note<
337  "add a pair of parentheses to declare a variable">;
338def note_raii_guard_add_name : Note<
339  "add a variable name to declare a %0 initialized with %1">;
340def note_function_style_cast_add_parentheses : Note<
341  "add enclosing parentheses to perform a function-style cast">;
342def note_remove_parens_for_variable_declaration : Note<
343  "remove parentheses to silence this warning">;
344def note_empty_parens_function_call : Note<
345  "change this ',' to a ';' to call %0">;
346def note_empty_parens_default_ctor : Note<
347  "remove parentheses to declare a variable">;
348def note_empty_parens_zero_initialize : Note<
349  "replace parentheses with an initializer to declare a variable">;
350def warn_unused_function : Warning<"unused function %0">,
351  InGroup<UnusedFunction>, DefaultIgnore;
352def warn_unused_template : Warning<"unused %select{function|variable}0 template %1">,
353  InGroup<UnusedTemplate>, DefaultIgnore;
354def warn_unused_member_function : Warning<"unused member function %0">,
355  InGroup<UnusedMemberFunction>, DefaultIgnore;
356def warn_used_but_marked_unused: Warning<"%0 was marked unused but was used">,
357  InGroup<UsedButMarkedUnused>, DefaultIgnore;
358def warn_unneeded_internal_decl : Warning<
359  "%select{function|variable}0 %1 is not needed and will not be emitted">,
360  InGroup<UnneededInternalDecl>, DefaultIgnore;
361def warn_unneeded_static_internal_decl : Warning<
362  "'static' function %0 declared in header file "
363  "should be declared 'static inline'">,
364  InGroup<UnneededInternalDecl>, DefaultIgnore;
365def warn_unneeded_member_function : Warning<
366  "member function %0 is not needed and will not be emitted">,
367  InGroup<UnneededMemberFunction>, DefaultIgnore;
368def warn_unused_private_field: Warning<"private field %0 is not used">,
369  InGroup<UnusedPrivateField>, DefaultIgnore;
370def warn_unused_lambda_capture: Warning<"lambda capture %0 is not "
371  "%select{used|required to be captured for this use}1">,
372  InGroup<UnusedLambdaCapture>, DefaultIgnore;
373
374def warn_parameter_size: Warning<
375  "%0 is a large (%1 bytes) pass-by-value argument; "
376  "pass it by reference instead ?">, InGroup<LargeByValueCopy>;
377def warn_return_value_size: Warning<
378  "return value of %0 is a large (%1 bytes) pass-by-value object; "
379  "pass it by reference instead ?">, InGroup<LargeByValueCopy>;
380def warn_return_value_udt: Warning<
381  "%0 has C-linkage specified, but returns user-defined type %1 which is "
382  "incompatible with C">, InGroup<ReturnTypeCLinkage>;
383def warn_return_value_udt_incomplete: Warning<
384  "%0 has C-linkage specified, but returns incomplete type %1 which could be "
385  "incompatible with C">, InGroup<ReturnTypeCLinkage>;
386def warn_implicit_function_decl : Warning<
387  "implicit declaration of function %0">,
388  InGroup<ImplicitFunctionDeclare>, DefaultIgnore;
389def ext_implicit_function_decl : ExtWarn<
390  "implicit declaration of function %0 is invalid in C99">,
391  InGroup<ImplicitFunctionDeclare>;
392def note_function_suggestion : Note<"did you mean %0?">;
393
394def err_ellipsis_first_param : Error<
395  "ISO C requires a named parameter before '...'">;
396def err_declarator_need_ident : Error<"declarator requires an identifier">;
397def err_language_linkage_spec_unknown : Error<"unknown linkage language">;
398def err_language_linkage_spec_not_ascii : Error<
399  "string literal in language linkage specifier cannot have an "
400  "encoding-prefix">;
401def ext_use_out_of_scope_declaration : ExtWarn<
402  "use of out-of-scope declaration of %0%select{| whose type is not "
403  "compatible with that of an implicit declaration}1">,
404  InGroup<DiagGroup<"out-of-scope-function">>;
405def err_inline_non_function : Error<
406  "'inline' can only appear on functions%select{| and non-local variables}0">;
407def err_noreturn_non_function : Error<
408  "'_Noreturn' can only appear on functions">;
409def warn_qual_return_type : Warning<
410  "'%0' type qualifier%s1 on return type %plural{1:has|:have}1 no effect">,
411  InGroup<IgnoredQualifiers>, DefaultIgnore;
412def warn_deprecated_redundant_constexpr_static_def : Warning<
413  "out-of-line definition of constexpr static data member is redundant "
414  "in C++17 and is deprecated">,
415  InGroup<Deprecated>, DefaultIgnore;
416
417def warn_decl_shadow :
418  Warning<"declaration shadows a %select{"
419          "local variable|"
420          "variable in %2|"
421          "static data member of %2|"
422          "field of %2|"
423          "typedef in %2|"
424          "type alias in %2}1">,
425  InGroup<Shadow>, DefaultIgnore;
426def warn_decl_shadow_uncaptured_local :
427  Warning<warn_decl_shadow.Text>,
428  InGroup<ShadowUncapturedLocal>, DefaultIgnore;
429def warn_ctor_parm_shadows_field:
430  Warning<"constructor parameter %0 shadows the field %1 of %2">,
431  InGroup<ShadowFieldInConstructor>, DefaultIgnore;
432def warn_modifying_shadowing_decl :
433  Warning<"modifying constructor parameter %0 that shadows a "
434          "field of %1">,
435  InGroup<ShadowFieldInConstructorModified>, DefaultIgnore;
436
437// C++ decomposition declarations
438def err_decomp_decl_context : Error<
439  "decomposition declaration not permitted in this context">;
440def warn_cxx14_compat_decomp_decl : Warning<
441  "decomposition declarations are incompatible with "
442  "C++ standards before C++17">, DefaultIgnore, InGroup<CXXPre17Compat>;
443def ext_decomp_decl : ExtWarn<
444  "decomposition declarations are a C++17 extension">, InGroup<CXX17>;
445def ext_decomp_decl_cond : ExtWarn<
446  "ISO C++17 does not permit structured binding declaration in a condition">,
447  InGroup<DiagGroup<"binding-in-condition">>;
448def err_decomp_decl_spec : Error<
449  "decomposition declaration cannot be declared "
450  "%plural{1:'%1'|:with '%1' specifiers}0">;
451def ext_decomp_decl_spec : ExtWarn<
452  "decomposition declaration declared "
453  "%plural{1:'%1'|:with '%1' specifiers}0 is a C++20 extension">,
454  InGroup<CXX20>;
455def warn_cxx17_compat_decomp_decl_spec : Warning<
456  "decomposition declaration declared "
457  "%plural{1:'%1'|:with '%1' specifiers}0 "
458  "is incompatible with C++ standards before C++20">,
459  InGroup<CXXPre20Compat>, DefaultIgnore;
460def err_decomp_decl_type : Error<
461  "decomposition declaration cannot be declared with type %0; "
462  "declared type must be 'auto' or reference to 'auto'">;
463def err_decomp_decl_parens : Error<
464  "decomposition declaration cannot be declared with parentheses">;
465def err_decomp_decl_template : Error<
466  "decomposition declaration template not supported">;
467def err_decomp_decl_not_alone : Error<
468  "decomposition declaration must be the only declaration in its group">;
469def err_decomp_decl_requires_init : Error<
470  "decomposition declaration %0 requires an initializer">;
471def err_decomp_decl_wrong_number_bindings : Error<
472  "type %0 decomposes into %2 elements, but %select{only |}3%1 "
473  "names were provided">;
474def err_decomp_decl_unbindable_type : Error<
475  "cannot decompose %select{union|non-class, non-array}1 type %2">;
476def err_decomp_decl_multiple_bases_with_members : Error<
477  "cannot decompose class type %1: "
478  "%select{its base classes %2 and|both it and its base class}0 %3 "
479  "have non-static data members">;
480def err_decomp_decl_ambiguous_base : Error<
481  "cannot decompose members of ambiguous base class %1 of %0:%2">;
482def err_decomp_decl_inaccessible_base : Error<
483  "cannot decompose members of inaccessible base class %1 of %0">,
484  AccessControl;
485def err_decomp_decl_inaccessible_field : Error<
486  "cannot decompose %select{private|protected}0 member %1 of %3">,
487  AccessControl;
488def err_decomp_decl_anon_union_member : Error<
489  "cannot decompose class type %0 because it has an anonymous "
490  "%select{struct|union}1 member">;
491def err_decomp_decl_std_tuple_element_not_specialized : Error<
492  "cannot decompose this type; 'std::tuple_element<%0>::type' "
493  "does not name a type">;
494def err_decomp_decl_std_tuple_size_not_constant : Error<
495  "cannot decompose this type; 'std::tuple_size<%0>::value' "
496  "is not a valid integral constant expression">;
497def note_in_binding_decl_init : Note<
498  "in implicit initialization of binding declaration %0">;
499
500def err_std_type_trait_not_class_template : Error<
501  "unsupported standard library implementation: "
502  "'std::%0' is not a class template">;
503
504// C++ using declarations
505def err_using_requires_qualname : Error<
506  "using declaration requires a qualified name">;
507def err_using_typename_non_type : Error<
508  "'typename' keyword used on a non-type">;
509def err_using_dependent_value_is_type : Error<
510  "dependent using declaration resolved to type without 'typename'">;
511def err_using_decl_nested_name_specifier_is_not_class : Error<
512  "using declaration in class refers into '%0', which is not a class">;
513def err_using_decl_nested_name_specifier_is_current_class : Error<
514  "using declaration refers to its own class">;
515def err_using_decl_nested_name_specifier_is_not_base_class : Error<
516  "using declaration refers into '%0', which is not a base class of %1">;
517def err_using_decl_constructor_not_in_direct_base : Error<
518  "%0 is not a direct base of %1, cannot inherit constructors">;
519def err_using_decl_can_not_refer_to_class_member : Error<
520  "using declaration cannot refer to class member">;
521def err_ambiguous_inherited_constructor : Error<
522  "constructor of %0 inherited from multiple base class subobjects">;
523def note_ambiguous_inherited_constructor_using : Note<
524  "inherited from base class %0 here">;
525def note_using_decl_class_member_workaround : Note<
526  "use %select{an alias declaration|a typedef declaration|a reference|"
527  "a const variable|a constexpr variable}0 instead">;
528def err_using_decl_can_not_refer_to_namespace : Error<
529  "using declaration cannot refer to a namespace">;
530def err_using_decl_can_not_refer_to_scoped_enum : Error<
531  "using declaration cannot refer to a scoped enumerator">;
532def err_using_decl_constructor : Error<
533  "using declaration cannot refer to a constructor">;
534def warn_cxx98_compat_using_decl_constructor : Warning<
535  "inheriting constructors are incompatible with C++98">,
536  InGroup<CXX98Compat>, DefaultIgnore;
537def err_using_decl_destructor : Error<
538  "using declaration cannot refer to a destructor">;
539def err_using_decl_template_id : Error<
540  "using declaration cannot refer to a template specialization">;
541def note_using_decl_target : Note<"target of using declaration">;
542def note_using_decl_conflict : Note<"conflicting declaration">;
543def err_using_decl_redeclaration : Error<"redeclaration of using declaration">;
544def err_using_decl_conflict : Error<
545  "target of using declaration conflicts with declaration already in scope">;
546def err_using_decl_conflict_reverse : Error<
547  "declaration conflicts with target of using declaration already in scope">;
548def note_using_decl : Note<"%select{|previous }0using declaration">;
549def err_using_decl_redeclaration_expansion : Error<
550  "using declaration pack expansion at block scope produces multiple values">;
551
552def warn_access_decl_deprecated : Warning<
553  "access declarations are deprecated; use using declarations instead">,
554  InGroup<Deprecated>;
555def err_access_decl : Error<
556  "ISO C++11 does not allow access declarations; "
557  "use using declarations instead">;
558def warn_deprecated_copy_operation : Warning<
559  "definition of implicit copy %select{constructor|assignment operator}1 "
560  "for %0 is deprecated because it has a user-declared copy "
561  "%select{assignment operator|constructor}1">,
562  InGroup<DeprecatedCopy>, DefaultIgnore;
563def warn_deprecated_copy_dtor_operation : Warning<
564  "definition of implicit copy %select{constructor|assignment operator}1 "
565  "for %0 is deprecated because it has a user-declared destructor">,
566  InGroup<DeprecatedCopyDtor>, DefaultIgnore;
567def warn_cxx17_compat_exception_spec_in_signature : Warning<
568  "mangled name of %0 will change in C++17 due to non-throwing exception "
569  "specification in function signature">, InGroup<CXX17CompatMangling>;
570
571def warn_global_constructor : Warning<
572  "declaration requires a global constructor">,
573  InGroup<GlobalConstructors>, DefaultIgnore;
574def warn_global_destructor : Warning<
575  "declaration requires a global destructor">,
576   InGroup<GlobalConstructors>, DefaultIgnore;
577def warn_exit_time_destructor : Warning<
578  "declaration requires an exit-time destructor">,
579  InGroup<ExitTimeDestructors>, DefaultIgnore;
580
581def err_invalid_thread : Error<
582  "'%0' is only allowed on variable declarations">;
583def err_thread_non_global : Error<
584  "'%0' variables must have global storage">;
585def err_thread_unsupported : Error<
586  "thread-local storage is not supported for the current target">;
587
588// FIXME: Combine fallout warnings to just one warning.
589def warn_maybe_falloff_nonvoid_function : Warning<
590  "non-void function does not return a value in all control paths">,
591  InGroup<ReturnType>;
592def warn_falloff_nonvoid_function : Warning<
593  "non-void function does not return a value">,
594  InGroup<ReturnType>;
595def err_maybe_falloff_nonvoid_block : Error<
596  "non-void block does not return a value in all control paths">;
597def err_falloff_nonvoid_block : Error<
598  "non-void block does not return a value">;
599def warn_maybe_falloff_nonvoid_coroutine : Warning<
600  "non-void coroutine does not return a value in all control paths">,
601  InGroup<ReturnType>;
602def warn_falloff_nonvoid_coroutine : Warning<
603  "non-void coroutine does not return a value">,
604  InGroup<ReturnType>;
605def warn_suggest_noreturn_function : Warning<
606  "%select{function|method}0 %1 could be declared with attribute 'noreturn'">,
607  InGroup<MissingNoreturn>, DefaultIgnore;
608def warn_suggest_noreturn_block : Warning<
609  "block could be declared with attribute 'noreturn'">,
610  InGroup<MissingNoreturn>, DefaultIgnore;
611
612// Unreachable code.
613def warn_unreachable : Warning<
614  "code will never be executed">,
615  InGroup<UnreachableCode>, DefaultIgnore;
616def warn_unreachable_break : Warning<
617  "'break' will never be executed">,
618  InGroup<UnreachableCodeBreak>, DefaultIgnore;
619def warn_unreachable_return : Warning<
620  "'return' will never be executed">,
621  InGroup<UnreachableCodeReturn>, DefaultIgnore;
622def warn_unreachable_loop_increment : Warning<
623  "loop will run at most once (loop increment never executed)">,
624  InGroup<UnreachableCodeLoopIncrement>, DefaultIgnore;
625def note_unreachable_silence : Note<
626  "silence by adding parentheses to mark code as explicitly dead">;
627
628/// Built-in functions.
629def ext_implicit_lib_function_decl : ExtWarn<
630  "implicitly declaring library function '%0' with type %1">,
631  InGroup<ImplicitFunctionDeclare>;
632def note_include_header_or_declare : Note<
633  "include the header <%0> or explicitly provide a declaration for '%1'">;
634def note_previous_builtin_declaration : Note<"%0 is a builtin with type %1">;
635def warn_implicit_decl_no_jmp_buf
636    : Warning<"declaration of built-in function '%0' requires the declaration"
637    " of the 'jmp_buf' type, commonly provided in the header <setjmp.h>.">,
638      InGroup<DiagGroup<"incomplete-setjmp-declaration">>;
639def warn_implicit_decl_requires_sysheader : Warning<
640  "declaration of built-in function '%1' requires inclusion of the header <%0>">,
641  InGroup<BuiltinRequiresHeader>;
642def warn_redecl_library_builtin : Warning<
643  "incompatible redeclaration of library function %0">,
644  InGroup<DiagGroup<"incompatible-library-redeclaration">>;
645def err_builtin_definition : Error<"definition of builtin function %0">;
646def err_builtin_redeclare : Error<"cannot redeclare builtin function %0">;
647def err_arm_invalid_specialreg : Error<"invalid special register for builtin">;
648def err_arm_invalid_coproc : Error<"coprocessor %0 must be configured as "
649  "%select{GCP|CDE}1">;
650def err_invalid_cpu_supports : Error<"invalid cpu feature string for builtin">;
651def err_invalid_cpu_is : Error<"invalid cpu name for builtin">;
652def err_invalid_cpu_specific_dispatch_value : Error<
653"invalid option '%0' for %select{cpu_specific|cpu_dispatch}1">;
654def warn_builtin_unknown : Warning<"use of unknown builtin %0">,
655  InGroup<ImplicitFunctionDeclare>, DefaultError;
656def warn_cstruct_memaccess : Warning<
657  "%select{destination for|source of|first operand of|second operand of}0 this "
658  "%1 call is a pointer to record %2 that is not trivial to "
659  "%select{primitive-default-initialize|primitive-copy}3">,
660  InGroup<NonTrivialMemaccess>;
661def note_nontrivial_field : Note<
662  "field is non-trivial to %select{copy|default-initialize}0">;
663def err_non_trivial_c_union_in_invalid_context : Error<
664  "cannot %select{"
665  "use type %1 for a function/method parameter|"
666  "use type %1 for function/method return|"
667  "default-initialize an object of type %1|"
668  "declare an automatic variable of type %1|"
669  "copy-initialize an object of type %1|"
670  "assign to a variable of type %1|"
671  "construct an automatic compound literal of type %1|"
672  "capture a variable of type %1|"
673  "cannot use volatile type %1 where it causes an lvalue-to-rvalue conversion"
674  "}3 "
675  "since it %select{contains|is}2 a union that is non-trivial to "
676  "%select{default-initialize|destruct|copy}0">;
677def note_non_trivial_c_union : Note<
678  "%select{%2 has subobjects that are|%3 has type %2 that is}0 "
679  "non-trivial to %select{default-initialize|destruct|copy}1">;
680def warn_dyn_class_memaccess : Warning<
681  "%select{destination for|source of|first operand of|second operand of}0 this "
682  "%1 call is a pointer to %select{|class containing a }2dynamic class %3; "
683  "vtable pointer will be %select{overwritten|copied|moved|compared}4">,
684  InGroup<DynamicClassMemaccess>;
685def note_bad_memaccess_silence : Note<
686  "explicitly cast the pointer to silence this warning">;
687def warn_sizeof_pointer_expr_memaccess : Warning<
688  "'%0' call operates on objects of type %1 while the size is based on a "
689  "different type %2">,
690  InGroup<SizeofPointerMemaccess>;
691def warn_sizeof_pointer_expr_memaccess_note : Note<
692  "did you mean to %select{dereference the argument to 'sizeof' (and multiply "
693  "it by the number of elements)|remove the addressof in the argument to "
694  "'sizeof' (and multiply it by the number of elements)|provide an explicit "
695  "length}0?">;
696def warn_sizeof_pointer_type_memaccess : Warning<
697  "argument to 'sizeof' in %0 call is the same pointer type %1 as the "
698  "%select{destination|source}2; expected %3 or an explicit length">,
699  InGroup<SizeofPointerMemaccess>;
700def warn_strlcpycat_wrong_size : Warning<
701  "size argument in %0 call appears to be size of the source; "
702  "expected the size of the destination">,
703  InGroup<DiagGroup<"strlcpy-strlcat-size">>;
704def note_strlcpycat_wrong_size : Note<
705  "change size argument to be the size of the destination">;
706def warn_memsize_comparison : Warning<
707  "size argument in %0 call is a comparison">,
708  InGroup<DiagGroup<"memsize-comparison">>;
709def note_memsize_comparison_paren : Note<
710  "did you mean to compare the result of %0 instead?">;
711def note_memsize_comparison_cast_silence : Note<
712  "explicitly cast the argument to size_t to silence this warning">;
713def warn_suspicious_sizeof_memset : Warning<
714  "%select{'size' argument to memset is '0'|"
715  "setting buffer to a 'sizeof' expression}0"
716  "; did you mean to transpose the last two arguments?">,
717  InGroup<MemsetTransposedArgs>;
718def note_suspicious_sizeof_memset_silence : Note<
719  "%select{parenthesize the third argument|"
720  "cast the second argument to 'int'}0 to silence">;
721def warn_suspicious_bzero_size : Warning<"'size' argument to bzero is '0'">,
722  InGroup<SuspiciousBzero>;
723def note_suspicious_bzero_size_silence : Note<
724  "parenthesize the second argument to silence">;
725
726def warn_strncat_large_size : Warning<
727  "the value of the size argument in 'strncat' is too large, might lead to a "
728  "buffer overflow">, InGroup<StrncatSize>;
729def warn_strncat_src_size : Warning<"size argument in 'strncat' call appears "
730  "to be size of the source">, InGroup<StrncatSize>;
731def warn_strncat_wrong_size : Warning<
732  "the value of the size argument to 'strncat' is wrong">, InGroup<StrncatSize>;
733def note_strncat_wrong_size : Note<
734  "change the argument to be the free space in the destination buffer minus "
735  "the terminating null byte">;
736
737def warn_assume_side_effects : Warning<
738  "the argument to %0 has side effects that will be discarded">,
739  InGroup<DiagGroup<"assume">>;
740
741def warn_builtin_chk_overflow : Warning<
742  "'%0' will always overflow; destination buffer has size %1,"
743  " but size argument is %2">,
744  InGroup<DiagGroup<"builtin-memcpy-chk-size">>;
745
746def warn_fortify_source_overflow
747  : Warning<warn_builtin_chk_overflow.Text>, InGroup<FortifySource>;
748def warn_fortify_source_size_mismatch : Warning<
749  "'%0' size argument is too large; destination buffer has size %1,"
750  " but size argument is %2">, InGroup<FortifySource>;
751
752def warn_fortify_source_format_overflow : Warning<
753  "'%0' will always overflow; destination buffer has size %1,"
754  " but format string expands to at least %2">,
755  InGroup<FortifySource>;
756
757
758/// main()
759// static main() is not an error in C, just in C++.
760def warn_static_main : Warning<"'main' should not be declared static">,
761    InGroup<Main>;
762def err_static_main : Error<"'main' is not allowed to be declared static">;
763def err_inline_main : Error<"'main' is not allowed to be declared inline">;
764def ext_variadic_main : ExtWarn<
765  "'main' is not allowed to be declared variadic">, InGroup<Main>;
766def ext_noreturn_main : ExtWarn<
767  "'main' is not allowed to be declared _Noreturn">, InGroup<Main>;
768def note_main_remove_noreturn : Note<"remove '_Noreturn'">;
769def err_constexpr_main : Error<
770  "'main' is not allowed to be declared %select{constexpr|consteval}0">;
771def err_deleted_main : Error<"'main' is not allowed to be deleted">;
772def err_mainlike_template_decl : Error<"%0 cannot be a template">;
773def err_main_returns_nonint : Error<"'main' must return 'int'">;
774def ext_main_returns_nonint : ExtWarn<"return type of 'main' is not 'int'">,
775    InGroup<MainReturnType>;
776def note_main_change_return_type : Note<"change return type to 'int'">;
777def err_main_surplus_args : Error<"too many parameters (%0) for 'main': "
778    "must be 0, 2, or 3">;
779def warn_main_one_arg : Warning<"only one parameter on 'main' declaration">,
780    InGroup<Main>;
781def err_main_arg_wrong : Error<"%select{first|second|third|fourth}0 "
782    "parameter of 'main' (%select{argument count|argument array|environment|"
783    "platform-specific data}0) must be of type %1">;
784def warn_main_returns_bool_literal : Warning<"bool literal returned from "
785    "'main'">, InGroup<Main>;
786def err_main_global_variable :
787    Error<"main cannot be declared as global variable">;
788def warn_main_redefined : Warning<"variable named 'main' with external linkage "
789    "has undefined behavior">, InGroup<Main>;
790def ext_main_used : Extension<
791  "ISO C++ does not allow 'main' to be used by a program">, InGroup<Main>;
792
793/// parser diagnostics
794def ext_no_declarators : ExtWarn<"declaration does not declare anything">,
795  InGroup<MissingDeclarations>;
796def ext_typedef_without_a_name : ExtWarn<"typedef requires a name">,
797  InGroup<MissingDeclarations>;
798def err_typedef_not_identifier : Error<"typedef name must be an identifier">;
799
800def ext_non_c_like_anon_struct_in_typedef : ExtWarn<
801  "anonymous non-C-compatible type given name for linkage purposes "
802  "by %select{typedef|alias}0 declaration; "
803  "add a tag name here">, InGroup<DiagGroup<"non-c-typedef-for-linkage">>;
804def err_non_c_like_anon_struct_in_typedef : Error<
805  "anonymous non-C-compatible type given name for linkage purposes "
806  "by %select{typedef|alias}0 declaration after its linkage was computed; "
807  "add a tag name here to establish linkage prior to definition">;
808def err_typedef_changes_linkage : Error<
809  "unsupported: anonymous type given name for linkage purposes "
810  "by %select{typedef|alias}0 declaration after its linkage was computed; "
811  "add a tag name here to establish linkage prior to definition">;
812def note_non_c_like_anon_struct : Note<
813  "type is not C-compatible due to this "
814  "%select{base class|default member initializer|lambda expression|"
815  "friend declaration|member declaration}0">;
816def note_typedef_for_linkage_here : Note<
817  "type is given name %0 for linkage purposes by this "
818  "%select{typedef|alias}1 declaration">;
819
820def err_statically_allocated_object : Error<
821  "interface type cannot be statically allocated">;
822def err_object_cannot_be_passed_returned_by_value : Error<
823  "interface type %1 cannot be %select{returned|passed}0 by value"
824  "; did you forget * in %1?">;
825def err_parameters_retval_cannot_have_fp16_type : Error<
826  "%select{parameters|function return value}0 cannot have __fp16 type; did you forget * ?">;
827def err_opencl_half_load_store : Error<
828  "%select{loading directly from|assigning directly to}0 pointer to type %1 requires "
829  "cl_khr_fp16. Use vector data %select{load|store}0 builtin functions instead">;
830def err_opencl_cast_to_half : Error<"casting to type %0 is not allowed">;
831def err_opencl_half_declaration : Error<
832  "declaring variable of type %0 is not allowed">;
833def err_opencl_invalid_param : Error<
834  "declaring function parameter of type %0 is not allowed%select{; did you forget * ?|}1">;
835def err_opencl_invalid_return : Error<
836  "declaring function return value of type %0 is not allowed %select{; did you forget * ?|}1">;
837def warn_enum_value_overflow : Warning<"overflow in enumeration value">;
838def warn_pragma_options_align_reset_failed : Warning<
839  "#pragma options align=reset failed: %0">,
840  InGroup<IgnoredPragmas>;
841def err_pragma_options_align_mac68k_target_unsupported : Error<
842  "mac68k alignment pragma is not supported on this target">;
843def warn_pragma_pack_invalid_alignment : Warning<
844  "expected #pragma pack parameter to be '1', '2', '4', '8', or '16'">,
845  InGroup<IgnoredPragmas>;
846def warn_pragma_pack_non_default_at_include : Warning<
847  "non-default #pragma pack value changes the alignment of struct or union "
848  "members in the included file">, InGroup<PragmaPackSuspiciousInclude>,
849  DefaultIgnore;
850def warn_pragma_pack_modified_after_include : Warning<
851  "the current #pragma pack alignment value is modified in the included "
852  "file">, InGroup<PragmaPack>;
853def warn_pragma_pack_no_pop_eof : Warning<"unterminated "
854  "'#pragma pack (push, ...)' at end of file">, InGroup<PragmaPack>;
855def note_pragma_pack_here : Note<
856  "previous '#pragma pack' directive that modifies alignment is here">;
857def note_pragma_pack_pop_instead_reset : Note<
858  "did you intend to use '#pragma pack (pop)' instead of '#pragma pack()'?">;
859// Follow the Microsoft implementation.
860def warn_pragma_pack_show : Warning<"value of #pragma pack(show) == %0">;
861def warn_pragma_pack_pop_identifier_and_alignment : Warning<
862  "specifying both a name and alignment to 'pop' is undefined">;
863def warn_pragma_pop_failed : Warning<"#pragma %0(pop, ...) failed: %1">,
864  InGroup<IgnoredPragmas>;
865def err_pragma_fc_pp_scope : Error<
866  "'#pragma float_control push/pop' can only appear at file scope or namespace scope">;
867def err_pragma_fc_noprecise_requires_nofenv : Error<
868  "'#pragma float_control(precise, off)' is illegal when fenv_access is enabled">;
869def err_pragma_fc_except_requires_precise : Error<
870  "'#pragma float_control(except, on)' is illegal when precise is disabled">;
871def err_pragma_fc_noprecise_requires_noexcept : Error<
872  "'#pragma float_control(precise, off)' is illegal when except is enabled">;
873def err_pragma_fenv_requires_precise : Error<
874  "'#pragma STDC FENV_ACCESS ON' is illegal when precise is disabled">;
875def warn_cxx_ms_struct :
876  Warning<"ms_struct may not produce Microsoft-compatible layouts for classes "
877          "with base classes or virtual functions">,
878  DefaultError, InGroup<IncompatibleMSStruct>;
879def err_section_conflict : Error<"%0 causes a section type conflict with %1">;
880def err_no_base_classes : Error<"invalid use of '__super', %0 has no base classes">;
881def err_invalid_super_scope : Error<"invalid use of '__super', "
882  "this keyword can only be used inside class or member function scope">;
883def err_super_in_lambda_unsupported : Error<
884  "use of '__super' inside a lambda is unsupported">;
885
886def warn_pragma_unused_undeclared_var : Warning<
887  "undeclared variable %0 used as an argument for '#pragma unused'">,
888  InGroup<IgnoredPragmas>;
889def warn_atl_uuid_deprecated : Warning<
890  "specifying 'uuid' as an ATL attribute is deprecated; use __declspec instead">,
891  InGroup<DeprecatedDeclarations>;
892def warn_pragma_unused_expected_var_arg : Warning<
893  "only variables can be arguments to '#pragma unused'">,
894  InGroup<IgnoredPragmas>;
895def err_pragma_push_visibility_mismatch : Error<
896  "#pragma visibility push with no matching #pragma visibility pop">;
897def note_surrounding_namespace_ends_here : Note<
898  "surrounding namespace with visibility attribute ends here">;
899def err_pragma_pop_visibility_mismatch : Error<
900  "#pragma visibility pop with no matching #pragma visibility push">;
901def note_surrounding_namespace_starts_here : Note<
902  "surrounding namespace with visibility attribute starts here">;
903def err_pragma_loop_invalid_argument_type : Error<
904  "invalid argument of type %0; expected an integer type">;
905def err_pragma_loop_invalid_argument_value : Error<
906  "%select{invalid value '%0'; must be positive|value '%0' is too large}1">;
907def err_pragma_loop_compatibility : Error<
908  "%select{incompatible|duplicate}0 directives '%1' and '%2'">;
909def err_pragma_loop_precedes_nonloop : Error<
910  "expected a for, while, or do-while loop to follow '%0'">;
911
912def err_pragma_attribute_matcher_subrule_contradicts_rule : Error<
913  "redundant attribute subject matcher sub-rule '%0'; '%1' already matches "
914  "those declarations">;
915def err_pragma_attribute_matcher_negated_subrule_contradicts_subrule : Error<
916  "negated attribute subject matcher sub-rule '%0' contradicts sub-rule '%1'">;
917def err_pragma_attribute_invalid_matchers : Error<
918  "attribute %0 can't be applied to %1">;
919def err_pragma_attribute_stack_mismatch : Error<
920  "'#pragma clang attribute %select{%1.|}0pop' with no matching"
921  " '#pragma clang attribute %select{%1.|}0push'">;
922def warn_pragma_attribute_unused : Warning<
923  "unused attribute %0 in '#pragma clang attribute push' region">,
924  InGroup<PragmaClangAttribute>;
925def note_pragma_attribute_region_ends_here : Note<
926  "'#pragma clang attribute push' regions ends here">;
927def err_pragma_attribute_no_pop_eof : Error<"unterminated "
928  "'#pragma clang attribute push' at end of file">;
929def note_pragma_attribute_applied_decl_here : Note<
930  "when applied to this declaration">;
931def err_pragma_attr_attr_no_push : Error<
932  "'#pragma clang attribute' attribute with no matching "
933  "'#pragma clang attribute push'">;
934
935/// Objective-C parser diagnostics
936def err_duplicate_class_def : Error<
937  "duplicate interface definition for class %0">;
938def err_undef_superclass : Error<
939  "cannot find interface declaration for %0, superclass of %1">;
940def err_forward_superclass : Error<
941  "attempting to use the forward class %0 as superclass of %1">;
942def err_no_nsconstant_string_class : Error<
943  "cannot find interface declaration for %0">;
944def err_recursive_superclass : Error<
945  "trying to recursively use %0 as superclass of %1">;
946def err_conflicting_aliasing_type : Error<"conflicting types for alias %0">;
947def warn_undef_interface : Warning<"cannot find interface declaration for %0">;
948def warn_duplicate_protocol_def : Warning<
949  "duplicate protocol definition of %0 is ignored">,
950  InGroup<DiagGroup<"duplicate-protocol">>;
951def err_protocol_has_circular_dependency : Error<
952  "protocol has circular dependency">;
953def err_undeclared_protocol : Error<"cannot find protocol declaration for %0">;
954def warn_undef_protocolref : Warning<"cannot find protocol definition for %0">;
955def err_atprotocol_protocol : Error<
956  "@protocol is using a forward protocol declaration of %0">;
957def warn_readonly_property : Warning<
958  "attribute 'readonly' of property %0 restricts attribute "
959  "'readwrite' of property inherited from %1">,
960  InGroup<PropertyAttr>;
961
962def warn_property_attribute : Warning<
963  "'%1' attribute on property %0 does not match the property inherited from %2">,
964  InGroup<PropertyAttr>;
965def warn_property_types_are_incompatible : Warning<
966  "property type %0 is incompatible with type %1 inherited from %2">,
967  InGroup<DiagGroup<"incompatible-property-type">>;
968def warn_protocol_property_mismatch : Warning<
969  "property %select{of type %1|with attribute '%1'|without attribute '%1'|with "
970  "getter %1|with setter %1}0 was selected for synthesis">,
971  InGroup<DiagGroup<"protocol-property-synthesis-ambiguity">>;
972def err_protocol_property_mismatch: Error<warn_protocol_property_mismatch.Text>;
973def err_undef_interface : Error<"cannot find interface declaration for %0">;
974def err_category_forward_interface : Error<
975  "cannot define %select{category|class extension}0 for undefined class %1">;
976def err_class_extension_after_impl : Error<
977  "cannot declare class extension for %0 after class implementation">;
978def note_implementation_declared : Note<
979  "class implementation is declared here">;
980def note_while_in_implementation : Note<
981  "detected while default synthesizing properties in class implementation">;
982def note_class_declared : Note<
983  "class is declared here">;
984def note_receiver_class_declared : Note<
985  "receiver is instance of class declared here">;
986def note_receiver_expr_here : Note<
987  "receiver expression is here">;
988def note_receiver_is_id : Note<
989  "receiver is treated with 'id' type for purpose of method lookup">;
990def note_suppressed_class_declare : Note<
991  "class with specified objc_requires_property_definitions attribute is declared here">;
992def err_objc_root_class_subclass : Error<
993  "objc_root_class attribute may only be specified on a root class declaration">;
994def err_restricted_superclass_mismatch : Error<
995  "cannot subclass a class that was declared with the "
996  "'objc_subclassing_restricted' attribute">;
997def err_class_stub_subclassing_mismatch : Error<
998  "'objc_class_stub' attribute cannot be specified on a class that does not "
999  "have the 'objc_subclassing_restricted' attribute">;
1000def err_implementation_of_class_stub : Error<
1001  "cannot declare implementation of a class declared with the "
1002  "'objc_class_stub' attribute">;
1003def warn_objc_root_class_missing : Warning<
1004  "class %0 defined without specifying a base class">,
1005  InGroup<ObjCRootClass>;
1006def err_objc_runtime_visible_category : Error<
1007  "cannot implement a category for class %0 that is only visible via the "
1008  "Objective-C runtime">;
1009def err_objc_runtime_visible_subclass : Error<
1010  "cannot implement subclass %0 of a superclass %1 that is only visible via the "
1011  "Objective-C runtime">;
1012def note_objc_needs_superclass : Note<
1013  "add a super class to fix this problem">;
1014def err_conflicting_super_class : Error<"conflicting super class name %0">;
1015def err_dup_implementation_class : Error<"reimplementation of class %0">;
1016def err_dup_implementation_category : Error<
1017  "reimplementation of category %1 for class %0">;
1018def err_conflicting_ivar_type : Error<
1019  "instance variable %0 has conflicting type%diff{: $ vs $|}1,2">;
1020def err_duplicate_ivar_declaration : Error<
1021  "instance variable is already declared">;
1022def warn_on_superclass_use : Warning<
1023  "class implementation may not have super class">;
1024def err_conflicting_ivar_bitwidth : Error<
1025  "instance variable %0 has conflicting bit-field width">;
1026def err_conflicting_ivar_name : Error<
1027  "conflicting instance variable names: %0 vs %1">;
1028def err_inconsistent_ivar_count : Error<
1029  "inconsistent number of instance variables specified">;
1030def warn_undef_method_impl : Warning<"method definition for %0 not found">,
1031  InGroup<DiagGroup<"incomplete-implementation">>;
1032def warn_objc_boxing_invalid_utf8_string : Warning<
1033  "string is ill-formed as UTF-8 and will become a null %0 when boxed">,
1034  InGroup<ObjCBoxing>;
1035
1036def err_objc_direct_on_protocol : Error<
1037  "'objc_direct' attribute cannot be applied to %select{methods|properties}0 "
1038  "declared in an Objective-C protocol">;
1039def err_objc_direct_duplicate_decl : Error<
1040  "%select{|direct }0%select{method|property}1 declaration conflicts "
1041  "with previous %select{|direct }2declaration of %select{method|property}1 %3">;
1042def err_objc_direct_impl_decl_mismatch : Error<
1043  "direct method was declared in %select{the primary interface|an extension|a category}0 "
1044  "but is implemented in %select{the primary interface|a category|a different category}1">;
1045def err_objc_direct_missing_on_decl : Error<
1046  "direct method implementation was previously declared not direct">;
1047def err_objc_direct_on_override : Error<
1048  "methods that %select{override superclass methods|implement protocol requirements}0 cannot be direct">;
1049def err_objc_override_direct_method : Error<
1050  "cannot override a method that is declared direct by a superclass">;
1051def warn_objc_direct_ignored : Warning<
1052  "%0 attribute isn't implemented by this Objective-C runtime">,
1053  InGroup<IgnoredAttributes>;
1054def warn_objc_direct_property_ignored : Warning<
1055  "direct attribute on property %0 ignored (not implemented by this Objective-C runtime)">,
1056  InGroup<IgnoredAttributes>;
1057def err_objc_direct_dynamic_property : Error<
1058  "direct property cannot be @dynamic">;
1059
1060def warn_conflicting_overriding_ret_types : Warning<
1061  "conflicting return type in "
1062  "declaration of %0%diff{: $ vs $|}1,2">,
1063  InGroup<OverridingMethodMismatch>, DefaultIgnore;
1064
1065def warn_conflicting_ret_types : Warning<
1066  "conflicting return type in "
1067  "implementation of %0%diff{: $ vs $|}1,2">,
1068  InGroup<MismatchedReturnTypes>;
1069
1070def warn_conflicting_overriding_ret_type_modifiers : Warning<
1071  "conflicting distributed object modifiers on return type "
1072  "in declaration of %0">,
1073  InGroup<OverridingMethodMismatch>, DefaultIgnore;
1074
1075def warn_conflicting_ret_type_modifiers : Warning<
1076  "conflicting distributed object modifiers on return type "
1077  "in implementation of %0">,
1078  InGroup<DistributedObjectModifiers>;
1079
1080def warn_non_covariant_overriding_ret_types : Warning<
1081  "conflicting return type in "
1082  "declaration of %0: %1 vs %2">,
1083  InGroup<OverridingMethodMismatch>, DefaultIgnore;
1084
1085def warn_non_covariant_ret_types : Warning<
1086  "conflicting return type in "
1087  "implementation of %0: %1 vs %2">,
1088  InGroup<MethodSignatures>, DefaultIgnore;
1089
1090def warn_conflicting_overriding_param_types : Warning<
1091  "conflicting parameter types in "
1092  "declaration of %0%diff{: $ vs $|}1,2">,
1093  InGroup<OverridingMethodMismatch>, DefaultIgnore;
1094
1095def warn_conflicting_param_types : Warning<
1096  "conflicting parameter types in "
1097  "implementation of %0%diff{: $ vs $|}1,2">,
1098  InGroup<MismatchedParameterTypes>;
1099
1100def warn_conflicting_param_modifiers : Warning<
1101  "conflicting distributed object modifiers on parameter type "
1102  "in implementation of %0">,
1103  InGroup<DistributedObjectModifiers>;
1104
1105def warn_conflicting_overriding_param_modifiers : Warning<
1106  "conflicting distributed object modifiers on parameter type "
1107  "in declaration of %0">,
1108  InGroup<OverridingMethodMismatch>, DefaultIgnore;
1109
1110def warn_non_contravariant_overriding_param_types : Warning<
1111  "conflicting parameter types in "
1112  "declaration of %0: %1 vs %2">,
1113  InGroup<OverridingMethodMismatch>, DefaultIgnore;
1114
1115def warn_non_contravariant_param_types : Warning<
1116  "conflicting parameter types in "
1117  "implementation of %0: %1 vs %2">,
1118  InGroup<MethodSignatures>, DefaultIgnore;
1119
1120def warn_conflicting_overriding_variadic :Warning<
1121  "conflicting variadic declaration of method and its "
1122  "implementation">,
1123  InGroup<OverridingMethodMismatch>, DefaultIgnore;
1124
1125def warn_conflicting_variadic :Warning<
1126  "conflicting variadic declaration of method and its "
1127  "implementation">;
1128
1129def warn_category_method_impl_match:Warning<
1130  "category is implementing a method which will also be implemented"
1131  " by its primary class">, InGroup<ObjCProtocolMethodImpl>;
1132
1133def warn_implements_nscopying : Warning<
1134"default assign attribute on property %0 which implements "
1135"NSCopying protocol is not appropriate with -fobjc-gc[-only]">;
1136
1137def warn_multiple_method_decl : Warning<"multiple methods named %0 found">,
1138  InGroup<ObjCMultipleMethodNames>;
1139def warn_strict_multiple_method_decl : Warning<
1140  "multiple methods named %0 found">, InGroup<StrictSelector>, DefaultIgnore;
1141def warn_accessor_property_type_mismatch : Warning<
1142  "type of property %0 does not match type of accessor %1">;
1143def note_conv_function_declared_at : Note<"type conversion function declared here">;
1144def note_method_declared_at : Note<"method %0 declared here">;
1145def note_direct_method_declared_at : Note<"direct method %0 declared here">;
1146def note_property_attribute : Note<"property %0 is declared "
1147  "%select{deprecated|unavailable|partial}1 here">;
1148def err_setter_type_void : Error<"type of setter must be void">;
1149def err_duplicate_method_decl : Error<"duplicate declaration of method %0">;
1150def warn_duplicate_method_decl :
1151  Warning<"multiple declarations of method %0 found and ignored">,
1152  InGroup<MethodDuplicate>, DefaultIgnore;
1153def warn_objc_cdirective_format_string :
1154  Warning<"using %0 directive in %select{NSString|CFString}1 "
1155          "which is being passed as a formatting argument to the formatting "
1156          "%select{method|CFfunction}2">,
1157  InGroup<ObjCCStringFormat>, DefaultIgnore;
1158def err_objc_var_decl_inclass :
1159    Error<"cannot declare variable inside @interface or @protocol">;
1160def err_missing_method_context : Error<
1161  "missing context for method declaration">;
1162def err_objc_property_attr_mutually_exclusive : Error<
1163  "property attributes '%0' and '%1' are mutually exclusive">;
1164def err_objc_property_requires_object : Error<
1165  "property with '%0' attribute must be of object type">;
1166def warn_objc_property_assign_on_object : Warning<
1167  "'assign' property of object type may become a dangling reference; consider using 'unsafe_unretained'">,
1168  InGroup<ObjCPropertyAssignOnObjectType>, DefaultIgnore;
1169def warn_objc_property_no_assignment_attribute : Warning<
1170  "no 'assign', 'retain', or 'copy' attribute is specified - "
1171  "'assign' is assumed">,
1172  InGroup<ObjCPropertyNoAttribute>;
1173def warn_objc_isa_use : Warning<
1174  "direct access to Objective-C's isa is deprecated in favor of "
1175  "object_getClass()">, InGroup<DeprecatedObjCIsaUsage>;
1176def warn_objc_isa_assign : Warning<
1177  "assignment to Objective-C's isa is deprecated in favor of "
1178  "object_setClass()">, InGroup<DeprecatedObjCIsaUsage>;
1179def warn_objc_pointer_masking : Warning<
1180  "bitmasking for introspection of Objective-C object pointers is strongly "
1181  "discouraged">,
1182  InGroup<ObjCPointerIntrospect>;
1183def warn_objc_pointer_masking_performSelector : Warning<warn_objc_pointer_masking.Text>,
1184  InGroup<ObjCPointerIntrospectPerformSelector>;
1185def warn_objc_property_default_assign_on_object : Warning<
1186  "default property attribute 'assign' not appropriate for object">,
1187  InGroup<ObjCPropertyNoAttribute>;
1188def warn_property_attr_mismatch : Warning<
1189  "property attribute in class extension does not match the primary class">,
1190  InGroup<PropertyAttr>;
1191def warn_property_implicitly_mismatched : Warning <
1192  "primary property declaration is implicitly strong while redeclaration "
1193  "in class extension is weak">,
1194  InGroup<DiagGroup<"objc-property-implicit-mismatch">>;
1195def warn_objc_property_copy_missing_on_block : Warning<
1196    "'copy' attribute must be specified for the block property "
1197    "when -fobjc-gc-only is specified">;
1198def warn_objc_property_retain_of_block : Warning<
1199    "retain'ed block property does not copy the block "
1200    "- use copy attribute instead">, InGroup<ObjCRetainBlockProperty>;
1201def warn_objc_readonly_property_has_setter : Warning<
1202    "setter cannot be specified for a readonly property">,
1203    InGroup<ObjCReadonlyPropertyHasSetter>;
1204def warn_atomic_property_rule : Warning<
1205  "writable atomic property %0 cannot pair a synthesized %select{getter|setter}1 "
1206  "with a user defined %select{getter|setter}2">,
1207  InGroup<DiagGroup<"atomic-property-with-user-defined-accessor">>;
1208def note_atomic_property_fixup_suggest : Note<"setter and getter must both be "
1209  "synthesized, or both be user defined,or the property must be nonatomic">;
1210def err_atomic_property_nontrivial_assign_op : Error<
1211  "atomic property of reference type %0 cannot have non-trivial assignment"
1212  " operator">;
1213def warn_cocoa_naming_owned_rule : Warning<
1214  "property follows Cocoa naming"
1215  " convention for returning 'owned' objects">,
1216  InGroup<DiagGroup<"objc-property-matches-cocoa-ownership-rule">>;
1217def err_cocoa_naming_owned_rule : Error<
1218  "property follows Cocoa naming"
1219  " convention for returning 'owned' objects">;
1220def note_cocoa_naming_declare_family : Note<
1221  "explicitly declare getter %objcinstance0 with '%1' to return an 'unowned' "
1222  "object">;
1223def warn_auto_synthesizing_protocol_property :Warning<
1224  "auto property synthesis will not synthesize property %0"
1225  " declared in protocol %1">,
1226  InGroup<DiagGroup<"objc-protocol-property-synthesis">>;
1227def note_add_synthesize_directive : Note<
1228  "add a '@synthesize' directive">;
1229def warn_no_autosynthesis_shared_ivar_property : Warning <
1230  "auto property synthesis will not synthesize property "
1231  "%0 because it cannot share an ivar with another synthesized property">,
1232  InGroup<ObjCNoPropertyAutoSynthesis>;
1233def warn_no_autosynthesis_property : Warning<
1234  "auto property synthesis will not synthesize property "
1235  "%0 because it is 'readwrite' but it will be synthesized 'readonly' "
1236  "via another property">,
1237  InGroup<ObjCNoPropertyAutoSynthesis>;
1238def warn_autosynthesis_property_in_superclass : Warning<
1239  "auto property synthesis will not synthesize property "
1240  "%0; it will be implemented by its superclass, use @dynamic to "
1241  "acknowledge intention">,
1242  InGroup<ObjCNoPropertyAutoSynthesis>;
1243def warn_autosynthesis_property_ivar_match :Warning<
1244  "autosynthesized property %0 will use %select{|synthesized}1 instance variable "
1245  "%2, not existing instance variable %3">,
1246  InGroup<DiagGroup<"objc-autosynthesis-property-ivar-name-match">>;
1247def warn_missing_explicit_synthesis : Warning <
1248  "auto property synthesis is synthesizing property not explicitly synthesized">,
1249  InGroup<DiagGroup<"objc-missing-property-synthesis">>, DefaultIgnore;
1250def warn_property_getter_owning_mismatch : Warning<
1251  "property declared as returning non-retained objects"
1252  "; getter returning retained objects">;
1253def warn_property_redecl_getter_mismatch : Warning<
1254  "getter name mismatch between property redeclaration (%1) and its original "
1255  "declaration (%0)">, InGroup<PropertyAttr>;
1256def err_property_setter_ambiguous_use : Error<
1257  "synthesized properties %0 and %1 both claim setter %2 -"
1258  " use of this setter will cause unexpected behavior">;
1259def warn_default_atomic_custom_getter_setter : Warning<
1260  "atomic by default property %0 has a user defined %select{getter|setter}1 "
1261  "(property should be marked 'atomic' if this is intended)">,
1262  InGroup<CustomAtomic>, DefaultIgnore;
1263def err_use_continuation_class : Error<
1264  "illegal redeclaration of property in class extension %0"
1265  " (attribute must be 'readwrite', while its primary must be 'readonly')">;
1266def err_type_mismatch_continuation_class : Error<
1267  "type of property %0 in class extension does not match "
1268  "property type in primary class">;
1269def err_use_continuation_class_redeclaration_readwrite : Error<
1270  "illegal redeclaration of 'readwrite' property in class extension %0"
1271  " (perhaps you intended this to be a 'readwrite' redeclaration of a "
1272  "'readonly' public property?)">;
1273def err_continuation_class : Error<"class extension has no primary class">;
1274def err_property_type : Error<"property cannot have array or function type %0">;
1275def err_missing_property_context : Error<
1276  "missing context for property implementation declaration">;
1277def err_bad_property_decl : Error<
1278  "property implementation must have its declaration in interface %0 or one of "
1279  "its extensions">;
1280def err_category_property : Error<
1281  "property declared in category %0 cannot be implemented in "
1282  "class implementation">;
1283def note_property_declare : Note<
1284  "property declared here">;
1285def note_protocol_property_declare : Note<
1286  "it could also be property "
1287  "%select{of type %1|without attribute '%1'|with attribute '%1'|with getter "
1288  "%1|with setter %1}0 declared here">;
1289def note_property_synthesize : Note<
1290  "property synthesized here">;
1291def err_synthesize_category_decl : Error<
1292  "@synthesize not allowed in a category's implementation">;
1293def err_synthesize_on_class_property : Error<
1294  "@synthesize not allowed on a class property %0">;
1295def err_missing_property_interface : Error<
1296  "property implementation in a category with no category declaration">;
1297def err_bad_category_property_decl : Error<
1298  "property implementation must have its declaration in the category %0">;
1299def err_bad_property_context : Error<
1300  "property implementation must be in a class or category implementation">;
1301def err_missing_property_ivar_decl : Error<
1302  "synthesized property %0 must either be named the same as a compatible"
1303  " instance variable or must explicitly name an instance variable">;
1304def err_arc_perform_selector_retains : Error<
1305  "performSelector names a selector which retains the object">;
1306def warn_arc_perform_selector_leaks : Warning<
1307  "performSelector may cause a leak because its selector is unknown">,
1308  InGroup<DiagGroup<"arc-performSelector-leaks">>;
1309def warn_dealloc_in_category : Warning<
1310"-dealloc is being overridden in a category">,
1311InGroup<DeallocInCategory>;
1312def err_gc_weak_property_strong_type : Error<
1313  "weak attribute declared on a __strong type property in GC mode">;
1314def warn_arc_repeated_use_of_weak : Warning <
1315  "weak %select{variable|property|implicit property|instance variable}0 %1 is "
1316  "accessed multiple times in this %select{function|method|block|lambda}2 "
1317  "but may be unpredictably set to nil; assign to a strong variable to keep "
1318  "the object alive">,
1319  InGroup<ARCRepeatedUseOfWeak>, DefaultIgnore;
1320def warn_implicitly_retains_self : Warning <
1321  "block implicitly retains 'self'; explicitly mention 'self' to indicate "
1322  "this is intended behavior">,
1323  InGroup<DiagGroup<"implicit-retain-self">>, DefaultIgnore;
1324def warn_arc_possible_repeated_use_of_weak : Warning <
1325  "weak %select{variable|property|implicit property|instance variable}0 %1 may "
1326  "be accessed multiple times in this %select{function|method|block|lambda}2 "
1327  "and may be unpredictably set to nil; assign to a strong variable to keep "
1328  "the object alive">,
1329  InGroup<ARCRepeatedUseOfWeakMaybe>, DefaultIgnore;
1330def note_arc_weak_also_accessed_here : Note<
1331  "also accessed here">;
1332def err_incomplete_synthesized_property : Error<
1333  "cannot synthesize property %0 with incomplete type %1">;
1334
1335def err_property_ivar_type : Error<
1336  "type of property %0 (%1) does not match type of instance variable %2 (%3)">;
1337def err_property_accessor_type : Error<
1338  "type of property %0 (%1) does not match type of accessor %2 (%3)">;
1339def err_ivar_in_superclass_use : Error<
1340  "property %0 attempting to use instance variable %1 declared in super class %2">;
1341def err_weak_property : Error<
1342  "existing instance variable %1 for __weak property %0 must be __weak">;
1343def err_strong_property : Error<
1344  "existing instance variable %1 for strong property %0 may not be __weak">;
1345def err_dynamic_property_ivar_decl : Error<
1346  "dynamic property cannot have instance variable specification">;
1347def err_duplicate_ivar_use : Error<
1348  "synthesized properties %0 and %1 both claim instance variable %2">;
1349def err_property_implemented : Error<"property %0 is already implemented">;
1350def warn_objc_missing_super_call : Warning<
1351  "method possibly missing a [super %0] call">,
1352  InGroup<ObjCMissingSuperCalls>;
1353def err_dealloc_bad_result_type : Error<
1354  "dealloc return type must be correctly specified as 'void' under ARC, "
1355  "instead of %0">;
1356def warn_undeclared_selector : Warning<
1357  "undeclared selector %0">, InGroup<UndeclaredSelector>, DefaultIgnore;
1358def warn_undeclared_selector_with_typo : Warning<
1359  "undeclared selector %0; did you mean %1?">,
1360  InGroup<UndeclaredSelector>, DefaultIgnore;
1361def warn_implicit_atomic_property : Warning<
1362  "property is assumed atomic by default">, InGroup<ImplicitAtomic>, DefaultIgnore;
1363def note_auto_readonly_iboutlet_fixup_suggest : Note<
1364  "property should be changed to be readwrite">;
1365def warn_auto_readonly_iboutlet_property : Warning<
1366  "readonly IBOutlet property %0 when auto-synthesized may "
1367  "not work correctly with 'nib' loader">,
1368  InGroup<DiagGroup<"readonly-iboutlet-property">>;
1369def warn_auto_implicit_atomic_property : Warning<
1370  "property is assumed atomic when auto-synthesizing the property">,
1371  InGroup<ImplicitAtomic>, DefaultIgnore;
1372def warn_unimplemented_selector:  Warning<
1373  "no method with selector %0 is implemented in this translation unit">,
1374  InGroup<Selector>, DefaultIgnore;
1375def warn_unimplemented_protocol_method : Warning<
1376  "method %0 in protocol %1 not implemented">, InGroup<Protocol>;
1377def warn_multiple_selectors: Warning<
1378  "several methods with selector %0 of mismatched types are found "
1379  "for the @selector expression">,
1380  InGroup<SelectorTypeMismatch>, DefaultIgnore;
1381def err_direct_selector_expression : Error<
1382  "@selector expression formed with direct selector %0">;
1383def warn_potentially_direct_selector_expression : Warning<
1384  "@selector expression formed with potentially direct selector %0">,
1385  InGroup<ObjCPotentiallyDirectSelector>;
1386def warn_strict_potentially_direct_selector_expression : Warning<
1387  warn_potentially_direct_selector_expression.Text>,
1388  InGroup<ObjCStrictPotentiallyDirectSelector>, DefaultIgnore;
1389
1390def err_objc_kindof_nonobject : Error<
1391  "'__kindof' specifier cannot be applied to non-object type %0">;
1392def err_objc_kindof_wrong_position : Error<
1393  "'__kindof' type specifier must precede the declarator">;
1394
1395def err_objc_method_unsupported_param_ret_type : Error<
1396  "%0 %select{parameter|return}1 type is unsupported; "
1397  "support for vector types for this target is introduced in %2">;
1398
1399def warn_messaging_unqualified_id : Warning<
1400  "messaging unqualified id">, DefaultIgnore,
1401  InGroup<DiagGroup<"objc-messaging-id">>;
1402def err_messaging_unqualified_id_with_direct_method : Error<
1403  "messaging unqualified id with a method that is possibly direct">;
1404def err_messaging_super_with_direct_method : Error<
1405  "messaging super with a direct method">;
1406def err_messaging_class_with_direct_method : Error<
1407  "messaging a Class with a method that is possibly direct">;
1408
1409// C++ declarations
1410def err_static_assert_expression_is_not_constant : Error<
1411  "static_assert expression is not an integral constant expression">;
1412def err_static_assert_failed : Error<"static_assert failed%select{ %1|}0">;
1413def err_static_assert_requirement_failed : Error<
1414  "static_assert failed due to requirement '%0'%select{ %2|}1">;
1415
1416def ext_inline_variable : ExtWarn<
1417  "inline variables are a C++17 extension">, InGroup<CXX17>;
1418def warn_cxx14_compat_inline_variable : Warning<
1419  "inline variables are incompatible with C++ standards before C++17">,
1420  DefaultIgnore, InGroup<CXXPre17Compat>;
1421
1422def warn_inline_namespace_reopened_noninline : Warning<
1423  "inline namespace reopened as a non-inline namespace">,
1424  InGroup<InlineNamespaceReopenedNoninline>;
1425def err_inline_namespace_mismatch : Error<
1426  "non-inline namespace cannot be reopened as inline">;
1427
1428def err_unexpected_friend : Error<
1429  "friends can only be classes or functions">;
1430def ext_enum_friend : ExtWarn<
1431  "befriending enumeration type %0 is a C++11 extension">, InGroup<CXX11>;
1432def warn_cxx98_compat_enum_friend : Warning<
1433  "befriending enumeration type %0 is incompatible with C++98">,
1434  InGroup<CXX98Compat>, DefaultIgnore;
1435def ext_nonclass_type_friend : ExtWarn<
1436  "non-class friend type %0 is a C++11 extension">, InGroup<CXX11>;
1437def warn_cxx98_compat_nonclass_type_friend : Warning<
1438  "non-class friend type %0 is incompatible with C++98">,
1439  InGroup<CXX98Compat>, DefaultIgnore;
1440def err_friend_is_member : Error<
1441  "friends cannot be members of the declaring class">;
1442def warn_cxx98_compat_friend_is_member : Warning<
1443  "friend declaration naming a member of the declaring class is incompatible "
1444  "with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
1445def ext_unelaborated_friend_type : ExtWarn<
1446  "unelaborated friend declaration is a C++11 extension; specify "
1447  "'%select{struct|interface|union|class|enum}0' to befriend %1">,
1448  InGroup<CXX11>;
1449def warn_cxx98_compat_unelaborated_friend_type : Warning<
1450  "befriending %1 without '%select{struct|interface|union|class|enum}0' "
1451  "keyword is incompatible with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
1452def err_qualified_friend_no_match : Error<
1453  "friend declaration of %0 does not match any declaration in %1">;
1454def err_introducing_special_friend : Error<
1455  "%plural{[0,2]:must use a qualified name when declaring|3:cannot declare}0"
1456  " a %select{constructor|destructor|conversion operator|deduction guide}0 "
1457  "as a friend">;
1458def err_tagless_friend_type_template : Error<
1459  "friend type templates must use an elaborated type">;
1460def err_no_matching_local_friend : Error<
1461  "no matching function found in local scope">;
1462def err_no_matching_local_friend_suggest : Error<
1463  "no matching function %0 found in local scope; did you mean %3?">;
1464def err_partial_specialization_friend : Error<
1465  "partial specialization cannot be declared as a friend">;
1466def err_qualified_friend_def : Error<
1467  "friend function definition cannot be qualified with '%0'">;
1468def err_friend_def_in_local_class : Error<
1469  "friend function cannot be defined in a local class">;
1470def err_friend_not_first_in_declaration : Error<
1471  "'friend' must appear first in a non-function declaration">;
1472def err_using_decl_friend : Error<
1473  "cannot befriend target of using declaration">;
1474def warn_template_qualified_friend_unsupported : Warning<
1475  "dependent nested name specifier '%0' for friend class declaration is "
1476  "not supported; turning off access control for %1">,
1477  InGroup<UnsupportedFriend>;
1478def warn_template_qualified_friend_ignored : Warning<
1479  "dependent nested name specifier '%0' for friend template declaration is "
1480  "not supported; ignoring this friend declaration">,
1481  InGroup<UnsupportedFriend>;
1482def ext_friend_tag_redecl_outside_namespace : ExtWarn<
1483  "unqualified friend declaration referring to type outside of the nearest "
1484  "enclosing namespace is a Microsoft extension; add a nested name specifier">,
1485  InGroup<MicrosoftUnqualifiedFriend>;
1486def err_pure_friend : Error<"friend declaration cannot have a pure-specifier">;
1487
1488def err_invalid_base_in_interface : Error<
1489  "interface type cannot inherit from "
1490  "%select{struct|non-public interface|class}0 %1">;
1491
1492def err_abstract_type_in_decl : Error<
1493  "%select{return|parameter|variable|field|instance variable|"
1494  "synthesized instance variable}0 type %1 is an abstract class">;
1495def err_allocation_of_abstract_type : Error<
1496  "allocating an object of abstract class type %0">;
1497def err_throw_abstract_type : Error<
1498  "cannot throw an object of abstract type %0">;
1499def err_array_of_abstract_type : Error<"array of abstract class type %0">;
1500def err_capture_of_abstract_type : Error<
1501  "by-copy capture of value of abstract type %0">;
1502def err_capture_of_incomplete_or_sizeless_type : Error<
1503  "by-copy capture of variable %0 with %select{incomplete|sizeless}1 type %2">;
1504def err_capture_default_non_local : Error<
1505  "non-local lambda expression cannot have a capture-default">;
1506
1507def err_multiple_final_overriders : Error<
1508  "virtual function %q0 has more than one final overrider in %1">;
1509def note_final_overrider : Note<"final overrider of %q0 in %1">;
1510
1511def err_type_defined_in_type_specifier : Error<
1512  "%0 cannot be defined in a type specifier">;
1513def err_type_defined_in_result_type : Error<
1514  "%0 cannot be defined in the result type of a function">;
1515def err_type_defined_in_param_type : Error<
1516  "%0 cannot be defined in a parameter type">;
1517def err_type_defined_in_alias_template : Error<
1518  "%0 cannot be defined in a type alias template">;
1519def err_type_defined_in_condition : Error<
1520  "%0 cannot be defined in a condition">;
1521def err_type_defined_in_enum : Error<
1522  "%0 cannot be defined in an enumeration">;
1523
1524def note_pure_virtual_function : Note<
1525  "unimplemented pure virtual method %0 in %1">;
1526
1527def note_pure_qualified_call_kext : Note<
1528  "qualified call to %0::%1 is treated as a virtual call to %1 due to -fapple-kext">;
1529
1530def err_deleted_decl_not_first : Error<
1531  "deleted definition must be first declaration">;
1532
1533def err_deleted_override : Error<
1534  "deleted function %0 cannot override a non-deleted function">;
1535def err_non_deleted_override : Error<
1536  "non-deleted function %0 cannot override a deleted function">;
1537def err_consteval_override : Error<
1538  "consteval function %0 cannot override a non-consteval function">;
1539def err_non_consteval_override : Error<
1540  "non-consteval function %0 cannot override a consteval function">;
1541
1542def warn_weak_vtable : Warning<
1543  "%0 has no out-of-line virtual method definitions; its vtable will be "
1544  "emitted in every translation unit">,
1545  InGroup<DiagGroup<"weak-vtables">>, DefaultIgnore;
1546def warn_weak_template_vtable : Warning<
1547  "explicit template instantiation %0 will emit a vtable in every "
1548  "translation unit">,
1549  InGroup<DiagGroup<"weak-template-vtables">>, DefaultIgnore;
1550
1551def ext_using_undefined_std : ExtWarn<
1552  "using directive refers to implicitly-defined namespace 'std'">;
1553
1554// C++ exception specifications
1555def err_exception_spec_in_typedef : Error<
1556  "exception specifications are not allowed in %select{typedefs|type aliases}0">;
1557def err_distant_exception_spec : Error<
1558  "exception specifications are not allowed beyond a single level "
1559  "of indirection">;
1560def err_incomplete_in_exception_spec : Error<
1561  "%select{|pointer to |reference to }0incomplete type %1 is not allowed "
1562  "in exception specification">;
1563def err_sizeless_in_exception_spec : Error<
1564  "%select{|reference to }0sizeless type %1 is not allowed "
1565  "in exception specification">;
1566def ext_incomplete_in_exception_spec : ExtWarn<err_incomplete_in_exception_spec.Text>,
1567  InGroup<MicrosoftExceptionSpec>;
1568def err_rref_in_exception_spec : Error<
1569  "rvalue reference type %0 is not allowed in exception specification">;
1570def err_mismatched_exception_spec : Error<
1571  "exception specification in declaration does not match previous declaration">;
1572def ext_mismatched_exception_spec : ExtWarn<err_mismatched_exception_spec.Text>,
1573  InGroup<MicrosoftExceptionSpec>;
1574def err_override_exception_spec : Error<
1575  "exception specification of overriding function is more lax than "
1576  "base version">;
1577def ext_override_exception_spec : ExtWarn<err_override_exception_spec.Text>,
1578  InGroup<MicrosoftExceptionSpec>;
1579def err_incompatible_exception_specs : Error<
1580  "target exception specification is not superset of source">;
1581def warn_incompatible_exception_specs : Warning<
1582  err_incompatible_exception_specs.Text>, InGroup<IncompatibleExceptionSpec>;
1583def err_deep_exception_specs_differ : Error<
1584  "exception specifications of %select{return|argument}0 types differ">;
1585def warn_deep_exception_specs_differ : Warning<
1586  err_deep_exception_specs_differ.Text>, InGroup<IncompatibleExceptionSpec>;
1587def err_missing_exception_specification : Error<
1588  "%0 is missing exception specification '%1'">;
1589def ext_missing_exception_specification : ExtWarn<
1590  err_missing_exception_specification.Text>,
1591  InGroup<DiagGroup<"missing-exception-spec">>;
1592def ext_ms_missing_exception_specification : ExtWarn<
1593  err_missing_exception_specification.Text>,
1594  InGroup<MicrosoftExceptionSpec>;
1595def err_noexcept_needs_constant_expression : Error<
1596  "argument to noexcept specifier must be a constant expression">;
1597def err_exception_spec_not_parsed : Error<
1598  "exception specification is not available until end of class definition">;
1599def err_exception_spec_cycle : Error<
1600  "exception specification of %0 uses itself">;
1601def err_exception_spec_incomplete_type : Error<
1602  "exception specification needed for member of incomplete class %0">;
1603def warn_wasm_dynamic_exception_spec_ignored : ExtWarn<
1604  "dynamic exception specifications with types are currently ignored in wasm">,
1605  InGroup<WebAssemblyExceptionSpec>;
1606
1607// C++ access checking
1608def err_class_redeclared_with_different_access : Error<
1609  "%0 redeclared with '%1' access">;
1610def err_access : Error<
1611  "%1 is a %select{private|protected}0 member of %3">, AccessControl;
1612def ext_ms_using_declaration_inaccessible : ExtWarn<
1613  "using declaration referring to inaccessible member '%0' (which refers "
1614  "to accessible member '%1') is a Microsoft compatibility extension">,
1615    AccessControl, InGroup<MicrosoftUsingDecl>;
1616def err_access_ctor : Error<
1617  "calling a %select{private|protected}0 constructor of class %2">,
1618  AccessControl;
1619def ext_rvalue_to_reference_access_ctor : Extension<
1620  "C++98 requires an accessible copy constructor for class %2 when binding "
1621  "a reference to a temporary; was %select{private|protected}0">,
1622  AccessControl, InGroup<BindToTemporaryCopy>;
1623def err_access_base_ctor : Error<
1624  // The ERRORs represent other special members that aren't constructors, in
1625  // hopes that someone will bother noticing and reporting if they appear
1626  "%select{base class|inherited virtual base class}0 %1 has %select{private|"
1627  "protected}3 %select{default |copy |move |*ERROR* |*ERROR* "
1628  "|*ERROR*|}2constructor">, AccessControl;
1629def err_access_field_ctor : Error<
1630  // The ERRORs represent other special members that aren't constructors, in
1631  // hopes that someone will bother noticing and reporting if they appear
1632  "field of type %0 has %select{private|protected}2 "
1633  "%select{default |copy |move |*ERROR* |*ERROR* |*ERROR* |}1constructor">,
1634  AccessControl;
1635def err_access_friend_function : Error<
1636  "friend function %1 is a %select{private|protected}0 member of %3">,
1637  AccessControl;
1638
1639def err_access_dtor : Error<
1640  "calling a %select{private|protected}1 destructor of class %0">,
1641  AccessControl;
1642def err_access_dtor_base :
1643    Error<"base class %0 has %select{private|protected}1 destructor">,
1644    AccessControl;
1645def err_access_dtor_vbase :
1646    Error<"inherited virtual base class %1 has "
1647    "%select{private|protected}2 destructor">,
1648    AccessControl;
1649def err_access_dtor_temp :
1650    Error<"temporary of type %0 has %select{private|protected}1 destructor">,
1651    AccessControl;
1652def err_access_dtor_exception :
1653    Error<"exception object of type %0 has %select{private|protected}1 "
1654          "destructor">, AccessControl;
1655def err_access_dtor_field :
1656    Error<"field of type %1 has %select{private|protected}2 destructor">,
1657    AccessControl;
1658def err_access_dtor_var :
1659    Error<"variable of type %1 has %select{private|protected}2 destructor">,
1660    AccessControl;
1661def err_access_dtor_ivar :
1662    Error<"instance variable of type %0 has %select{private|protected}1 "
1663          "destructor">,
1664    AccessControl;
1665def note_previous_access_declaration : Note<
1666  "previously declared '%1' here">;
1667def note_access_natural : Note<
1668  "%select{|implicitly }1declared %select{private|protected}0 here">;
1669def note_access_constrained_by_path : Note<
1670  "constrained by %select{|implicitly }1%select{private|protected}0"
1671  " inheritance here">;
1672def note_access_protected_restricted_noobject : Note<
1673  "must name member using the type of the current context %0">;
1674def note_access_protected_restricted_ctordtor : Note<
1675  "protected %select{constructor|destructor}0 can only be used to "
1676  "%select{construct|destroy}0 a base class subobject">;
1677def note_access_protected_restricted_object : Note<
1678  "can only access this member on an object of type %0">;
1679def warn_cxx98_compat_sfinae_access_control : Warning<
1680  "substitution failure due to access control is incompatible with C++98">,
1681  InGroup<CXX98Compat>, DefaultIgnore, NoSFINAE;
1682
1683// C++ name lookup
1684def err_incomplete_nested_name_spec : Error<
1685  "incomplete type %0 named in nested name specifier">;
1686def err_dependent_nested_name_spec : Error<
1687  "nested name specifier for a declaration cannot depend on a template "
1688  "parameter">;
1689def err_nested_name_member_ref_lookup_ambiguous : Error<
1690  "lookup of %0 in member access expression is ambiguous">;
1691def ext_nested_name_member_ref_lookup_ambiguous : ExtWarn<
1692  "lookup of %0 in member access expression is ambiguous; using member of %1">,
1693  InGroup<AmbigMemberTemplate>;
1694def note_ambig_member_ref_object_type : Note<
1695  "lookup in the object type %0 refers here">;
1696def note_ambig_member_ref_scope : Note<
1697  "lookup from the current scope refers here">;
1698def err_qualified_member_nonclass : Error<
1699  "qualified member access refers to a member in %0">;
1700def err_incomplete_member_access : Error<
1701  "member access into incomplete type %0">;
1702def err_incomplete_type : Error<
1703  "incomplete type %0 where a complete type is required">;
1704def warn_cxx98_compat_enum_nested_name_spec : Warning<
1705  "enumeration type in nested name specifier is incompatible with C++98">,
1706  InGroup<CXX98Compat>, DefaultIgnore;
1707def err_nested_name_spec_is_not_class : Error<
1708  "%0 cannot appear before '::' because it is not a class"
1709  "%select{ or namespace|, namespace, or enumeration}1; did you mean ':'?">;
1710def ext_nested_name_spec_is_enum : ExtWarn<
1711  "use of enumeration in a nested name specifier is a C++11 extension">,
1712  InGroup<CXX11>;
1713def err_out_of_line_qualified_id_type_names_constructor : Error<
1714  "qualified reference to %0 is a constructor name rather than a "
1715  "%select{template name|type}1 in this context">;
1716def ext_out_of_line_qualified_id_type_names_constructor : ExtWarn<
1717  "ISO C++ specifies that "
1718  "qualified reference to %0 is a constructor name rather than a "
1719  "%select{template name|type}1 in this context, despite preceding "
1720  "%select{'typename'|'template'}2 keyword">, SFINAEFailure,
1721  InGroup<DiagGroup<"injected-class-name">>;
1722
1723// C++ class members
1724def err_storageclass_invalid_for_member : Error<
1725  "storage class specified for a member declaration">;
1726def err_mutable_function : Error<"'mutable' cannot be applied to functions">;
1727def err_mutable_reference : Error<"'mutable' cannot be applied to references">;
1728def ext_mutable_reference : ExtWarn<
1729  "'mutable' on a reference type is a Microsoft extension">,
1730  InGroup<MicrosoftMutableReference>;
1731def err_mutable_const : Error<"'mutable' and 'const' cannot be mixed">;
1732def err_mutable_nonmember : Error<
1733  "'mutable' can only be applied to member variables">;
1734def err_virtual_in_union : Error<
1735  "unions cannot have virtual functions">;
1736def err_virtual_non_function : Error<
1737  "'virtual' can only appear on non-static member functions">;
1738def err_virtual_out_of_class : Error<
1739  "'virtual' can only be specified inside the class definition">;
1740def err_virtual_member_function_template : Error<
1741  "'virtual' cannot be specified on member function templates">;
1742def err_static_overrides_virtual : Error<
1743  "'static' member function %0 overrides a virtual function in a base class">;
1744def err_explicit_non_function : Error<
1745  "'explicit' can only appear on non-static member functions">;
1746def err_explicit_out_of_class : Error<
1747  "'explicit' can only be specified inside the class definition">;
1748def err_explicit_non_ctor_or_conv_function : Error<
1749  "'explicit' can only be applied to a constructor or conversion function">;
1750def err_static_not_bitfield : Error<"static member %0 cannot be a bit-field">;
1751def err_static_out_of_line : Error<
1752  "'static' can only be specified inside the class definition">;
1753def ext_static_out_of_line : ExtWarn<
1754  err_static_out_of_line.Text>,
1755  InGroup<MicrosoftTemplate>;
1756def err_storage_class_for_static_member : Error<
1757  "static data member definition cannot specify a storage class">;
1758def err_typedef_not_bitfield : Error<"typedef member %0 cannot be a bit-field">;
1759def err_not_integral_type_bitfield : Error<
1760  "bit-field %0 has non-integral type %1">;
1761def err_not_integral_type_anon_bitfield : Error<
1762  "anonymous bit-field has non-integral type %0">;
1763def err_anon_bitfield_qualifiers : Error<
1764  "anonymous bit-field cannot have qualifiers">;
1765def err_member_function_initialization : Error<
1766  "initializer on function does not look like a pure-specifier">;
1767def err_non_virtual_pure : Error<
1768  "%0 is not virtual and cannot be declared pure">;
1769def ext_pure_function_definition : ExtWarn<
1770  "function definition with pure-specifier is a Microsoft extension">,
1771  InGroup<MicrosoftPureDefinition>;
1772def err_qualified_member_of_unrelated : Error<
1773  "%q0 is not a member of class %1">;
1774
1775def err_member_function_call_bad_cvr : Error<
1776  "'this' argument to member function %0 has type %1, but function is not marked "
1777  "%select{const|restrict|const or restrict|volatile|const or volatile|"
1778  "volatile or restrict|const, volatile, or restrict}2">;
1779def err_member_function_call_bad_ref : Error<
1780  "'this' argument to member function %0 is an %select{lvalue|rvalue}1, "
1781  "but function has %select{non-const lvalue|rvalue}2 ref-qualifier">;
1782def err_member_function_call_bad_type : Error<
1783  "cannot initialize object parameter of type %0 with an expression "
1784  "of type %1">;
1785
1786def warn_call_to_pure_virtual_member_function_from_ctor_dtor : Warning<
1787  "call to pure virtual member function %0 has undefined behavior; "
1788  "overrides of %0 in subclasses are not available in the "
1789  "%select{constructor|destructor}1 of %2">, InGroup<PureVirtualCallFromCtorDtor>;
1790
1791def select_special_member_kind : TextSubstitution<
1792  "%select{default constructor|copy constructor|move constructor|"
1793  "copy assignment operator|move assignment operator|destructor}0">;
1794
1795def note_member_declared_at : Note<"member is declared here">;
1796def note_ivar_decl : Note<"instance variable is declared here">;
1797def note_bitfield_decl : Note<"bit-field is declared here">;
1798def note_implicit_param_decl : Note<"%0 is an implicit parameter">;
1799def note_member_synthesized_at : Note<
1800  "in %select{implicit|defaulted}0 %sub{select_special_member_kind}1 for %2 "
1801  "first required here">;
1802def note_comparison_synthesized_at : Note<
1803  "in defaulted %sub{select_defaulted_comparison_kind}0 for %1 "
1804  "first required here">;
1805def err_missing_default_ctor : Error<
1806  "%select{constructor for %1 must explicitly initialize the|"
1807  "implicit default constructor for %1 must explicitly initialize the|"
1808  "cannot use constructor inherited from base class %4;}0 "
1809  "%select{base class|member}2 %3 %select{which|which|of %1}0 "
1810  "does not have a default constructor">;
1811def note_due_to_dllexported_class : Note<
1812  "due to %0 being dllexported%select{|; try compiling in C++11 mode}1">;
1813
1814def err_illegal_union_or_anon_struct_member : Error<
1815  "%select{anonymous struct|union}0 member %1 has a non-trivial "
1816  "%sub{select_special_member_kind}2">;
1817
1818def warn_frame_address : Warning<
1819  "calling '%0' with a nonzero argument is unsafe">,
1820  InGroup<FrameAddress>, DefaultIgnore;
1821
1822def warn_cxx98_compat_nontrivial_union_or_anon_struct_member : Warning<
1823  "%select{anonymous struct|union}0 member %1 with a non-trivial "
1824  "%sub{select_special_member_kind}2 is incompatible with C++98">,
1825  InGroup<CXX98Compat>, DefaultIgnore;
1826
1827def note_nontrivial_virtual_dtor : Note<
1828  "destructor for %0 is not trivial because it is virtual">;
1829def note_nontrivial_has_virtual : Note<
1830  "because type %0 has a virtual %select{member function|base class}1">;
1831def note_nontrivial_no_def_ctor : Note<
1832  "because %select{base class of |field of |}0type %1 has no "
1833  "default constructor">;
1834def note_user_declared_ctor : Note<
1835  "implicit default constructor suppressed by user-declared constructor">;
1836def note_nontrivial_no_copy : Note<
1837  "because no %select{<<ERROR>>|constructor|constructor|assignment operator|"
1838  "assignment operator|<<ERROR>>}2 can be used to "
1839  "%select{<<ERROR>>|copy|move|copy|move|<<ERROR>>}2 "
1840  "%select{base class|field|an object}0 of type %3">;
1841def note_nontrivial_user_provided : Note<
1842  "because %select{base class of |field of |}0type %1 has a user-provided "
1843  "%sub{select_special_member_kind}2">;
1844def note_nontrivial_in_class_init : Note<
1845  "because field %0 has an initializer">;
1846def note_nontrivial_param_type : Note<
1847  "because its parameter is %diff{of type $, not $|of the wrong type}2,3">;
1848def note_nontrivial_default_arg : Note<"because it has a default argument">;
1849def note_nontrivial_variadic : Note<"because it is a variadic function">;
1850def note_nontrivial_subobject : Note<
1851  "because the function selected to %select{construct|copy|move|copy|move|"
1852  "destroy}2 %select{base class|field}0 of type %1 is not trivial">;
1853def note_nontrivial_objc_ownership : Note<
1854  "because type %0 has a member with %select{no|no|__strong|__weak|"
1855  "__autoreleasing}1 ownership">;
1856
1857/// Selector for a TagTypeKind value.
1858def select_tag_type_kind : TextSubstitution<
1859  "%select{struct|interface|union|class|enum}0">;
1860
1861def err_static_data_member_not_allowed_in_anon_struct : Error<
1862  "static data member %0 not allowed in anonymous "
1863  "%sub{select_tag_type_kind}1">;
1864def ext_static_data_member_in_union : ExtWarn<
1865  "static data member %0 in union is a C++11 extension">, InGroup<CXX11>;
1866def warn_cxx98_compat_static_data_member_in_union : Warning<
1867  "static data member %0 in union is incompatible with C++98">,
1868  InGroup<CXX98Compat>, DefaultIgnore;
1869def ext_union_member_of_reference_type : ExtWarn<
1870  "union member %0 has reference type %1, which is a Microsoft extension">,
1871  InGroup<MicrosoftUnionMemberReference>;
1872def err_union_member_of_reference_type : Error<
1873  "union member %0 has reference type %1">;
1874def ext_anonymous_struct_union_qualified : Extension<
1875  "anonymous %select{struct|union}0 cannot be '%1'">;
1876def err_different_return_type_for_overriding_virtual_function : Error<
1877  "virtual function %0 has a different return type "
1878  "%diff{($) than the function it overrides (which has return type $)|"
1879  "than the function it overrides}1,2">;
1880def note_overridden_virtual_function : Note<
1881  "overridden virtual function is here">;
1882def err_conflicting_overriding_cc_attributes : Error<
1883  "virtual function %0 has different calling convention attributes "
1884  "%diff{($) than the function it overrides (which has calling convention $)|"
1885  "than the function it overrides}1,2">;
1886def warn_overriding_method_missing_noescape : Warning<
1887  "parameter of overriding method should be annotated with "
1888  "__attribute__((noescape))">, InGroup<MissingNoEscape>;
1889def note_overridden_marked_noescape : Note<
1890  "parameter of overridden method is annotated with __attribute__((noescape))">;
1891def note_cat_conform_to_noescape_prot : Note<
1892  "%select{category|class extension}0 conforms to protocol %1 which defines method %2">;
1893
1894def err_covariant_return_inaccessible_base : Error<
1895  "invalid covariant return for virtual function: %1 is a "
1896  "%select{private|protected}2 base class of %0">, AccessControl;
1897def err_covariant_return_ambiguous_derived_to_base_conv : Error<
1898  "return type of virtual function %3 is not covariant with the return type of "
1899  "the function it overrides (ambiguous conversion from derived class "
1900  "%0 to base class %1:%2)">;
1901def err_covariant_return_not_derived : Error<
1902  "return type of virtual function %0 is not covariant with the return type of "
1903  "the function it overrides (%1 is not derived from %2)">;
1904def err_covariant_return_incomplete : Error<
1905  "return type of virtual function %0 is not covariant with the return type of "
1906  "the function it overrides (%1 is incomplete)">;
1907def err_covariant_return_type_different_qualifications : Error<
1908  "return type of virtual function %0 is not covariant with the return type of "
1909  "the function it overrides (%1 has different qualifiers than %2)">;
1910def err_covariant_return_type_class_type_more_qualified : Error<
1911  "return type of virtual function %0 is not covariant with the return type of "
1912  "the function it overrides (class type %1 is more qualified than class "
1913  "type %2">;
1914
1915// C++ implicit special member functions
1916def note_in_declaration_of_implicit_special_member : Note<
1917  "while declaring the implicit %sub{select_special_member_kind}1"
1918  " for %0">;
1919
1920// C++ constructors
1921def err_constructor_cannot_be : Error<"constructor cannot be declared '%0'">;
1922def err_invalid_qualified_constructor : Error<
1923  "'%0' qualifier is not allowed on a constructor">;
1924def err_ref_qualifier_constructor : Error<
1925  "ref-qualifier '%select{&&|&}0' is not allowed on a constructor">;
1926
1927def err_constructor_return_type : Error<
1928  "constructor cannot have a return type">;
1929def err_constructor_redeclared : Error<"constructor cannot be redeclared">;
1930def err_constructor_byvalue_arg : Error<
1931  "copy constructor must pass its first argument by reference">;
1932def warn_no_constructor_for_refconst : Warning<
1933  "%select{struct|interface|union|class|enum}0 %1 does not declare any "
1934  "constructor to initialize its non-modifiable members">;
1935def note_refconst_member_not_initialized : Note<
1936  "%select{const|reference}0 member %1 will never be initialized">;
1937def ext_ms_explicit_constructor_call : ExtWarn<
1938  "explicit constructor calls are a Microsoft extension">,
1939  InGroup<MicrosoftExplicitConstructorCall>;
1940
1941// C++ destructors
1942def err_destructor_not_member : Error<
1943  "destructor must be a non-static member function">;
1944def err_destructor_cannot_be : Error<"destructor cannot be declared '%0'">;
1945def err_invalid_qualified_destructor : Error<
1946  "'%0' qualifier is not allowed on a destructor">;
1947def err_ref_qualifier_destructor : Error<
1948  "ref-qualifier '%select{&&|&}0' is not allowed on a destructor">;
1949def err_destructor_return_type : Error<"destructor cannot have a return type">;
1950def err_destructor_redeclared : Error<"destructor cannot be redeclared">;
1951def err_destructor_with_params : Error<"destructor cannot have any parameters">;
1952def err_destructor_variadic : Error<"destructor cannot be variadic">;
1953def ext_destructor_typedef_name : ExtWarn<
1954  "destructor cannot be declared using a %select{typedef|type alias}1 %0 "
1955  "of the class name">, DefaultError, InGroup<DiagGroup<"dtor-typedef">>;
1956def err_undeclared_destructor_name : Error<
1957  "undeclared identifier %0 in destructor name">;
1958def err_destructor_name : Error<
1959  "expected the class name after '~' to name the enclosing class">;
1960def err_destructor_name_nontype : Error<
1961  "identifier %0 after '~' in destructor name does not name a type">;
1962def err_destructor_expr_mismatch : Error<
1963  "identifier %0 in object destruction expression does not name the type "
1964  "%1 of the object being destroyed">;
1965def err_destructor_expr_nontype : Error<
1966  "identifier %0 in object destruction expression does not name a type">;
1967def err_destructor_expr_type_mismatch : Error<
1968  "destructor type %0 in object destruction expression does not match the "
1969  "type %1 of the object being destroyed">;
1970def note_destructor_type_here : Note<
1971  "type %0 found by destructor name lookup">;
1972def note_destructor_nontype_here : Note<
1973  "non-type declaration found by destructor name lookup">;
1974def ext_dtor_named_in_wrong_scope : Extension<
1975  "ISO C++ requires the name after '::~' to be found in the same scope as "
1976  "the name before '::~'">, InGroup<DtorName>;
1977def ext_qualified_dtor_named_in_lexical_scope : ExtWarn<
1978  "qualified destructor name only found in lexical scope; omit the qualifier "
1979  "to find this type name by unqualified lookup">, InGroup<DtorName>;
1980def ext_dtor_name_ambiguous : Extension<
1981  "ISO C++ considers this destructor name lookup to be ambiguous">,
1982  InGroup<DtorName>;
1983
1984def err_destroy_attr_on_non_static_var : Error<
1985  "%select{no_destroy|always_destroy}0 attribute can only be applied to a"
1986  " variable with static or thread storage duration">;
1987
1988def err_destructor_template : Error<
1989  "destructor cannot be declared as a template">;
1990
1991// C++ initialization
1992def err_init_conversion_failed : Error<
1993  "cannot initialize %select{a variable|a parameter|return object|"
1994  "statement expression result|an "
1995  "exception object|a member subobject|an array element|a new value|a value|a "
1996  "base class|a constructor delegation|a vector element|a block element|a "
1997  "block element|a complex element|a lambda capture|a compound literal "
1998  "initializer|a related result|a parameter of CF audited function}0 "
1999  "%diff{of type $ with an %select{rvalue|lvalue}2 of type $|"
2000  "with an %select{rvalue|lvalue}2 of incompatible type}1,3"
2001  "%select{|: different classes%diff{ ($ vs $)|}5,6"
2002  "|: different number of parameters (%5 vs %6)"
2003  "|: type mismatch at %ordinal5 parameter%diff{ ($ vs $)|}6,7"
2004  "|: different return type%diff{ ($ vs $)|}5,6"
2005  "|: different qualifiers (%5 vs %6)"
2006  "|: different exception specifications}4">;
2007
2008def err_lvalue_to_rvalue_ref : Error<"rvalue reference %diff{to type $ cannot "
2009  "bind to lvalue of type $|cannot bind to incompatible lvalue}0,1">;
2010def err_lvalue_reference_bind_to_initlist : Error<
2011  "%select{non-const|volatile}0 lvalue reference to type %1 cannot bind to an "
2012  "initializer list temporary">;
2013def err_lvalue_reference_bind_to_temporary : Error<
2014  "%select{non-const|volatile}0 lvalue reference %diff{to type $ cannot bind "
2015  "to a temporary of type $|cannot bind to incompatible temporary}1,2">;
2016def err_lvalue_reference_bind_to_unrelated : Error<
2017  "%select{non-const|volatile}0 lvalue reference "
2018  "%diff{to type $ cannot bind to a value of unrelated type $|"
2019  "cannot bind to a value of unrelated type}1,2">;
2020def err_reference_bind_drops_quals : Error<
2021  "binding reference %diff{of type $ to value of type $|to value}0,1 "
2022  "%select{drops %3 qualifier%plural{1:|2:|4:|:s}4|changes address space|"
2023  "not permitted due to incompatible qualifiers}2">;
2024def err_reference_bind_failed : Error<
2025  "reference %diff{to %select{type|incomplete type}1 $ could not bind to an "
2026  "%select{rvalue|lvalue}2 of type $|could not bind to %select{rvalue|lvalue}2 of "
2027  "incompatible type}0,3">;
2028def err_reference_bind_temporary_addrspace : Error<
2029  "reference of type %0 cannot bind to a temporary object because of "
2030  "address space mismatch">;
2031def err_reference_bind_init_list : Error<
2032  "reference to type %0 cannot bind to an initializer list">;
2033def err_init_list_bad_dest_type : Error<
2034  "%select{|non-aggregate }0type %1 cannot be initialized with an initializer "
2035  "list">;
2036def warn_cxx20_compat_aggregate_init_with_ctors : Warning<
2037  "aggregate initialization of type %0 with user-declared constructors "
2038  "is incompatible with C++20">, DefaultIgnore, InGroup<CXX20Compat>;
2039
2040def err_reference_bind_to_bitfield : Error<
2041  "%select{non-const|volatile}0 reference cannot bind to "
2042  "bit-field%select{| %1}2">;
2043def err_reference_bind_to_vector_element : Error<
2044  "%select{non-const|volatile}0 reference cannot bind to vector element">;
2045def err_reference_bind_to_matrix_element : Error<
2046  "%select{non-const|volatile}0 reference cannot bind to matrix element">;
2047def err_reference_var_requires_init : Error<
2048  "declaration of reference variable %0 requires an initializer">;
2049def err_reference_without_init : Error<
2050  "reference to type %0 requires an initializer">;
2051def note_value_initialization_here : Note<
2052  "in value-initialization of type %0 here">;
2053def err_reference_has_multiple_inits : Error<
2054  "reference cannot be initialized with multiple values">;
2055def err_init_non_aggr_init_list : Error<
2056  "initialization of non-aggregate type %0 with an initializer list">;
2057def err_init_reference_member_uninitialized : Error<
2058  "reference member of type %0 uninitialized">;
2059def note_uninit_reference_member : Note<
2060  "uninitialized reference member is here">;
2061def warn_field_is_uninit : Warning<"field %0 is uninitialized when used here">,
2062  InGroup<Uninitialized>;
2063def warn_base_class_is_uninit : Warning<
2064  "base class %0 is uninitialized when used here to access %q1">,
2065  InGroup<Uninitialized>;
2066def warn_reference_field_is_uninit : Warning<
2067  "reference %0 is not yet bound to a value when used here">,
2068  InGroup<Uninitialized>;
2069def note_uninit_in_this_constructor : Note<
2070  "during field initialization in %select{this|the implicit default}0 "
2071  "constructor">;
2072def warn_static_self_reference_in_init : Warning<
2073  "static variable %0 is suspiciously used within its own initialization">,
2074  InGroup<UninitializedStaticSelfInit>;
2075def warn_uninit_self_reference_in_init : Warning<
2076  "variable %0 is uninitialized when used within its own initialization">,
2077  InGroup<Uninitialized>;
2078def warn_uninit_self_reference_in_reference_init : Warning<
2079  "reference %0 is not yet bound to a value when used within its own"
2080  " initialization">,
2081  InGroup<Uninitialized>;
2082def warn_uninit_var : Warning<
2083  "variable %0 is uninitialized when %select{used here|captured by block}1">,
2084  InGroup<Uninitialized>, DefaultIgnore;
2085def warn_sometimes_uninit_var : Warning<
2086  "variable %0 is %select{used|captured}1 uninitialized whenever "
2087  "%select{'%3' condition is %select{true|false}4|"
2088  "'%3' loop %select{is entered|exits because its condition is false}4|"
2089  "'%3' loop %select{condition is true|exits because its condition is false}4|"
2090  "switch %3 is taken|"
2091  "its declaration is reached|"
2092  "%3 is called}2">,
2093  InGroup<UninitializedSometimes>, DefaultIgnore;
2094def warn_maybe_uninit_var : Warning<
2095  "variable %0 may be uninitialized when "
2096  "%select{used here|captured by block}1">,
2097  InGroup<UninitializedMaybe>, DefaultIgnore;
2098def note_var_declared_here : Note<"variable %0 is declared here">;
2099def note_uninit_var_use : Note<
2100  "%select{uninitialized use occurs|variable is captured by block}0 here">;
2101def warn_uninit_byref_blockvar_captured_by_block : Warning<
2102  "block pointer variable %0 is %select{uninitialized|null}1 when captured by "
2103  "block">, InGroup<Uninitialized>, DefaultIgnore;
2104def note_block_var_fixit_add_initialization : Note<
2105  "did you mean to use __block %0?">;
2106def note_in_omitted_aggregate_initializer : Note<
2107  "in implicit initialization of %select{"
2108  "array element %1 with omitted initializer|"
2109  "field %1 with omitted initializer|"
2110  "trailing array elements in runtime-sized array new}0">;
2111def note_in_reference_temporary_list_initializer : Note<
2112  "in initialization of temporary of type %0 created to "
2113  "list-initialize this reference">;
2114def note_var_fixit_add_initialization : Note<
2115  "initialize the variable %0 to silence this warning">;
2116def note_uninit_fixit_remove_cond : Note<
2117  "remove the %select{'%1' if its condition|condition if it}0 "
2118  "is always %select{false|true}2">;
2119def err_init_incomplete_type : Error<"initialization of incomplete type %0">;
2120def err_list_init_in_parens : Error<
2121  "cannot initialize %select{non-class|reference}0 type %1 with a "
2122  "parenthesized initializer list">;
2123
2124def warn_uninit_const_reference : Warning<
2125  "variable %0 is uninitialized when passed as a const reference argument "
2126  "here">, InGroup<UninitializedConstReference>, DefaultIgnore;
2127
2128def warn_unsequenced_mod_mod : Warning<
2129  "multiple unsequenced modifications to %0">, InGroup<Unsequenced>;
2130def warn_unsequenced_mod_use : Warning<
2131  "unsequenced modification and access to %0">, InGroup<Unsequenced>;
2132
2133def select_initialized_entity_kind : TextSubstitution<
2134  "%select{copying variable|copying parameter|"
2135  "returning object|initializing statement expression result|"
2136  "throwing object|copying member subobject|copying array element|"
2137  "allocating object|copying temporary|initializing base subobject|"
2138  "initializing vector element|capturing value}0">;
2139
2140def err_temp_copy_no_viable : Error<
2141  "no viable constructor %sub{select_initialized_entity_kind}0 of type %1">;
2142def ext_rvalue_to_reference_temp_copy_no_viable : Extension<
2143  "no viable constructor %sub{select_initialized_entity_kind}0 of type %1; "
2144  "C++98 requires a copy constructor when binding a reference to a temporary">,
2145  InGroup<BindToTemporaryCopy>;
2146def err_temp_copy_ambiguous : Error<
2147  "ambiguous constructor call when %sub{select_initialized_entity_kind}0 "
2148  "of type %1">;
2149def err_temp_copy_deleted : Error<
2150  "%sub{select_initialized_entity_kind}0 of type %1 "
2151  "invokes deleted constructor">;
2152def err_temp_copy_incomplete : Error<
2153  "copying a temporary object of incomplete type %0">;
2154def warn_cxx98_compat_temp_copy : Warning<
2155  "%sub{select_initialized_entity_kind}1 "
2156  "of type %2 when binding a reference to a temporary would %select{invoke "
2157  "an inaccessible constructor|find no viable constructor|find ambiguous "
2158  "constructors|invoke a deleted constructor}0 in C++98">,
2159  InGroup<CXX98CompatBindToTemporaryCopy>, DefaultIgnore;
2160def err_selected_explicit_constructor : Error<
2161  "chosen constructor is explicit in copy-initialization">;
2162def note_explicit_ctor_deduction_guide_here : Note<
2163  "explicit %select{constructor|deduction guide}0 declared here">;
2164
2165// C++11 decltype
2166def err_decltype_in_declarator : Error<
2167    "'decltype' cannot be used to name a declaration">;
2168
2169// C++11 auto
2170def warn_cxx98_compat_auto_type_specifier : Warning<
2171  "'auto' type specifier is incompatible with C++98">,
2172  InGroup<CXX98Compat>, DefaultIgnore;
2173def err_auto_variable_cannot_appear_in_own_initializer : Error<
2174  "variable %0 declared with deduced type %1 "
2175  "cannot appear in its own initializer">;
2176def err_binding_cannot_appear_in_own_initializer : Error<
2177  "binding %0 cannot appear in the initializer of its own "
2178  "decomposition declaration">;
2179def err_illegal_decl_array_of_auto : Error<
2180  "'%0' declared as array of %1">;
2181def err_new_array_of_auto : Error<
2182  "cannot allocate array of 'auto'">;
2183def err_auto_not_allowed : Error<
2184  "%select{'auto'|'decltype(auto)'|'__auto_type'|"
2185  "use of "
2186  "%select{class template|function template|variable template|alias template|"
2187  "template template parameter|concept|template}2 %3 requires template "
2188  "arguments; argument deduction}0 not allowed "
2189  "%select{in function prototype"
2190  "|in non-static struct member|in struct member"
2191  "|in non-static union member|in union member"
2192  "|in non-static class member|in interface member"
2193  "|in exception declaration|in template parameter until C++17|in block literal"
2194  "|in template argument|in typedef|in type alias|in function return type"
2195  "|in conversion function type|here|in lambda parameter"
2196  "|in type allocated by 'new'|in K&R-style function parameter"
2197  "|in template parameter|in friend declaration|in function prototype that is "
2198  "not a function declaration|in requires expression parameter}1">;
2199def err_dependent_deduced_tst : Error<
2200  "typename specifier refers to "
2201  "%select{class template|function template|variable template|alias template|"
2202  "template template parameter|template}0 member in %1; "
2203  "argument deduction not allowed here">;
2204def err_deduced_tst : Error<
2205  "typename specifier refers to "
2206  "%select{class template|function template|variable template|alias template|"
2207  "template template parameter|template}0; argument deduction not allowed "
2208  "here">;
2209def err_auto_not_allowed_var_inst : Error<
2210  "'auto' variable template instantiation is not allowed">;
2211def err_auto_var_requires_init : Error<
2212  "declaration of variable %0 with deduced type %1 requires an initializer">;
2213def err_auto_new_requires_ctor_arg : Error<
2214  "new expression for type %0 requires a constructor argument">;
2215def ext_auto_new_list_init : Extension<
2216  "ISO C++ standards before C++17 do not allow new expression for "
2217  "type %0 to use list-initialization">, InGroup<CXX17>;
2218def err_auto_var_init_no_expression : Error<
2219  "initializer for variable %0 with type %1 is empty">;
2220def err_auto_var_init_multiple_expressions : Error<
2221  "initializer for variable %0 with type %1 contains multiple expressions">;
2222def err_auto_var_init_paren_braces : Error<
2223  "cannot deduce type for variable %1 with type %2 from "
2224  "%select{parenthesized|nested}0 initializer list">;
2225def err_auto_new_ctor_multiple_expressions : Error<
2226  "new expression for type %0 contains multiple constructor arguments">;
2227def err_auto_missing_trailing_return : Error<
2228  "'auto' return without trailing return type; deduced return types are a "
2229  "C++14 extension">;
2230def err_deduced_return_type : Error<
2231  "deduced return types are a C++14 extension">;
2232def err_trailing_return_without_auto : Error<
2233  "function with trailing return type must specify return type 'auto', not %0">;
2234def err_trailing_return_in_parens : Error<
2235  "trailing return type may not be nested within parentheses">;
2236def err_auto_var_deduction_failure : Error<
2237  "variable %0 with type %1 has incompatible initializer of type %2">;
2238def err_auto_var_deduction_failure_from_init_list : Error<
2239  "cannot deduce actual type for variable %0 with type %1 from initializer list">;
2240def err_auto_new_deduction_failure : Error<
2241  "new expression for type %0 has incompatible constructor argument of type %1">;
2242def err_auto_inconsistent_deduction : Error<
2243  "deduced conflicting types %diff{($ vs $) |}0,1"
2244  "for initializer list element type">;
2245def err_auto_different_deductions : Error<
2246  "%select{'auto'|'decltype(auto)'|'__auto_type'|template arguments}0 "
2247  "deduced as %1 in declaration of %2 and "
2248  "deduced as %3 in declaration of %4">;
2249def err_auto_non_deduced_not_alone : Error<
2250  "%select{function with deduced return type|"
2251  "declaration with trailing return type}0 "
2252  "must be the only declaration in its group">;
2253def err_implied_std_initializer_list_not_found : Error<
2254  "cannot deduce type of initializer list because std::initializer_list was "
2255  "not found; include <initializer_list>">;
2256def err_malformed_std_initializer_list : Error<
2257  "std::initializer_list must be a class template with a single type parameter">;
2258def err_auto_init_list_from_c : Error<
2259  "cannot use __auto_type with initializer list in C">;
2260def err_auto_bitfield : Error<
2261  "cannot pass bit-field as __auto_type initializer in C">;
2262
2263// C++1y decltype(auto) type
2264def err_decltype_auto_invalid : Error<
2265  "'decltype(auto)' not allowed here">;
2266def err_decltype_auto_cannot_be_combined : Error<
2267  "'decltype(auto)' cannot be combined with other type specifiers">;
2268def err_decltype_auto_function_declarator_not_declaration : Error<
2269  "'decltype(auto)' can only be used as a return type "
2270  "in a function declaration">;
2271def err_decltype_auto_compound_type : Error<
2272  "cannot form %select{pointer to|reference to|array of}0 'decltype(auto)'">;
2273def err_decltype_auto_initializer_list : Error<
2274  "cannot deduce 'decltype(auto)' from initializer list">;
2275
2276// C++17 deduced class template specialization types
2277def err_deduced_class_template_compound_type : Error<
2278  "cannot %select{form pointer to|form reference to|form array of|"
2279  "form function returning|use parentheses when declaring variable with}0 "
2280  "deduced class template specialization type">;
2281def err_deduced_non_class_template_specialization_type : Error<
2282  "%select{<error>|function template|variable template|alias template|"
2283  "template template parameter|concept|template}0 %1 requires template "
2284  "arguments; argument deduction only allowed for class templates">;
2285def err_deduced_class_template_ctor_ambiguous : Error<
2286  "ambiguous deduction for template arguments of %0">;
2287def err_deduced_class_template_ctor_no_viable : Error<
2288  "no viable constructor or deduction guide for deduction of "
2289  "template arguments of %0">;
2290def err_deduced_class_template_incomplete : Error<
2291  "template %0 has no definition and no %select{|viable }1deduction guides "
2292  "for deduction of template arguments">;
2293def err_deduced_class_template_deleted : Error<
2294  "class template argument deduction for %0 selected a deleted constructor">;
2295def err_deduced_class_template_explicit : Error<
2296  "class template argument deduction for %0 selected an explicit "
2297  "%select{constructor|deduction guide}1 for copy-list-initialization">;
2298def err_deduction_guide_no_trailing_return_type : Error<
2299  "deduction guide declaration without trailing return type">;
2300def err_deduction_guide_bad_trailing_return_type : Error<
2301  "deduced type %1 of deduction guide is not %select{|written as }2"
2302  "a specialization of template %0">;
2303def err_deduction_guide_with_complex_decl : Error<
2304  "cannot specify any part of a return type in the "
2305  "declaration of a deduction guide">;
2306def err_deduction_guide_invalid_specifier : Error<
2307  "deduction guide cannot be declared '%0'">;
2308def err_deduction_guide_name_not_class_template : Error<
2309  "cannot specify deduction guide for "
2310  "%select{<error>|function template|variable template|alias template|"
2311  "template template parameter|concept|dependent template name}0 %1">;
2312def err_deduction_guide_wrong_scope : Error<
2313  "deduction guide must be declared in the same scope as template %q0">;
2314def err_deduction_guide_defines_function : Error<
2315  "deduction guide cannot have a function definition">;
2316def err_deduction_guide_redeclared : Error<
2317  "redeclaration of deduction guide">;
2318def err_deduction_guide_specialized : Error<"deduction guide cannot be "
2319  "%select{explicitly instantiated|explicitly specialized}0">;
2320def err_deduction_guide_template_not_deducible : Error<
2321  "deduction guide template contains "
2322  "%select{a template parameter|template parameters}0 that cannot be "
2323  "deduced">;
2324def err_deduction_guide_wrong_access : Error<
2325  "deduction guide has different access from the corresponding "
2326  "member template">;
2327def note_deduction_guide_template_access : Note<
2328  "member template declared %0 here">;
2329def note_deduction_guide_access : Note<
2330  "deduction guide declared %0 by intervening access specifier">;
2331def warn_cxx14_compat_class_template_argument_deduction : Warning<
2332  "class template argument deduction is incompatible with C++ standards "
2333  "before C++17%select{|; for compatibility, use explicit type name %1}0">,
2334  InGroup<CXXPre17Compat>, DefaultIgnore;
2335def warn_ctad_maybe_unsupported : Warning<
2336  "%0 may not intend to support class template argument deduction">,
2337  InGroup<CTADMaybeUnsupported>, DefaultIgnore;
2338def note_suppress_ctad_maybe_unsupported : Note<
2339  "add a deduction guide to suppress this warning">;
2340
2341
2342// C++14 deduced return types
2343def err_auto_fn_deduction_failure : Error<
2344  "cannot deduce return type %0 from returned value of type %1">;
2345def err_auto_fn_different_deductions : Error<
2346  "'%select{auto|decltype(auto)}0' in return type deduced as %1 here but "
2347  "deduced as %2 in earlier return statement">;
2348def err_auto_fn_used_before_defined : Error<
2349  "function %0 with deduced return type cannot be used before it is defined">;
2350def err_auto_fn_no_return_but_not_auto : Error<
2351  "cannot deduce return type %0 for function with no return statements">;
2352def err_auto_fn_return_void_but_not_auto : Error<
2353  "cannot deduce return type %0 from omitted return expression">;
2354def err_auto_fn_return_init_list : Error<
2355  "cannot deduce return type from initializer list">;
2356def err_auto_fn_virtual : Error<
2357  "function with deduced return type cannot be virtual">;
2358def warn_cxx11_compat_deduced_return_type : Warning<
2359  "return type deduction is incompatible with C++ standards before C++14">,
2360  InGroup<CXXPre14Compat>, DefaultIgnore;
2361
2362// C++11 override control
2363def override_keyword_only_allowed_on_virtual_member_functions : Error<
2364  "only virtual member functions can be marked '%0'">;
2365def override_keyword_hides_virtual_member_function : Error<
2366  "non-virtual member function marked '%0' hides virtual member "
2367  "%select{function|functions}1">;
2368def err_function_marked_override_not_overriding : Error<
2369  "%0 marked 'override' but does not override any member functions">;
2370def warn_destructor_marked_not_override_overriding : TextSubstitution <
2371  "%0 overrides a destructor but is not marked 'override'">;
2372def warn_function_marked_not_override_overriding : TextSubstitution <
2373  "%0 overrides a member function but is not marked 'override'">;
2374def warn_inconsistent_destructor_marked_not_override_overriding : Warning <
2375  "%sub{warn_destructor_marked_not_override_overriding}0">,
2376  InGroup<CXX11WarnInconsistentOverrideDestructor>, DefaultIgnore;
2377def warn_inconsistent_function_marked_not_override_overriding : Warning <
2378  "%sub{warn_function_marked_not_override_overriding}0">,
2379  InGroup<CXX11WarnInconsistentOverrideMethod>;
2380def warn_suggest_destructor_marked_not_override_overriding : Warning <
2381  "%sub{warn_destructor_marked_not_override_overriding}0">,
2382  InGroup<CXX11WarnSuggestOverrideDestructor>, DefaultIgnore;
2383def warn_suggest_function_marked_not_override_overriding : Warning <
2384  "%sub{warn_function_marked_not_override_overriding}0">,
2385  InGroup<CXX11WarnSuggestOverride>, DefaultIgnore;
2386def err_class_marked_final_used_as_base : Error<
2387  "base %0 is marked '%select{final|sealed}1'">;
2388def warn_abstract_final_class : Warning<
2389  "abstract class is marked '%select{final|sealed}0'">, InGroup<AbstractFinalClass>;
2390def warn_final_dtor_non_final_class : Warning<
2391  "class with destructor marked '%select{final|sealed}0' cannot be inherited from">,
2392  InGroup<FinalDtorNonFinalClass>;
2393def note_final_dtor_non_final_class_silence : Note<
2394  "mark %0 as '%select{final|sealed}1' to silence this warning">;
2395
2396// C++11 attributes
2397def err_repeat_attribute : Error<"%0 attribute cannot be repeated">;
2398
2399// C++11 final
2400def err_final_function_overridden : Error<
2401  "declaration of %0 overrides a '%select{final|sealed}1' function">;
2402
2403// C++11 scoped enumerations
2404def err_enum_invalid_underlying : Error<
2405  "non-integral type %0 is an invalid underlying type">;
2406def err_enumerator_too_large : Error<
2407  "enumerator value is not representable in the underlying type %0">;
2408def ext_enumerator_too_large : Extension<
2409  "enumerator value is not representable in the underlying type %0">,
2410  InGroup<MicrosoftEnumValue>;
2411def err_enumerator_wrapped : Error<
2412  "enumerator value %0 is not representable in the underlying type %1">;
2413def err_enum_redeclare_type_mismatch : Error<
2414  "enumeration redeclared with different underlying type %0 (was %1)">;
2415def err_enum_redeclare_fixed_mismatch : Error<
2416  "enumeration previously declared with %select{non|}0fixed underlying type">;
2417def err_enum_redeclare_scoped_mismatch : Error<
2418  "enumeration previously declared as %select{un|}0scoped">;
2419def err_only_enums_have_underlying_types : Error<
2420  "only enumeration types have underlying types">;
2421def err_underlying_type_of_incomplete_enum : Error<
2422  "cannot determine underlying type of incomplete enumeration type %0">;
2423
2424// C++11 delegating constructors
2425def err_delegating_ctor : Error<
2426  "delegating constructors are permitted only in C++11">;
2427def warn_cxx98_compat_delegating_ctor : Warning<
2428  "delegating constructors are incompatible with C++98">,
2429  InGroup<CXX98Compat>, DefaultIgnore;
2430def err_delegating_initializer_alone : Error<
2431  "an initializer for a delegating constructor must appear alone">;
2432def warn_delegating_ctor_cycle : Warning<
2433  "constructor for %0 creates a delegation cycle">, DefaultError,
2434  InGroup<DelegatingCtorCycles>;
2435def note_it_delegates_to : Note<"it delegates to">;
2436def note_which_delegates_to : Note<"which delegates to">;
2437
2438// C++11 range-based for loop
2439def err_for_range_decl_must_be_var : Error<
2440  "for range declaration must declare a variable">;
2441def err_for_range_storage_class : Error<
2442  "loop variable %0 may not be declared %select{'extern'|'static'|"
2443  "'__private_extern__'|'auto'|'register'|'constexpr'}1">;
2444def err_type_defined_in_for_range : Error<
2445  "types may not be defined in a for range declaration">;
2446def err_for_range_deduction_failure : Error<
2447  "cannot use type %0 as a range">;
2448def err_for_range_incomplete_type : Error<
2449  "cannot use incomplete type %0 as a range">;
2450def err_for_range_iter_deduction_failure : Error<
2451  "cannot use type %0 as an iterator">;
2452def ext_for_range_begin_end_types_differ : ExtWarn<
2453  "'begin' and 'end' returning different types (%0 and %1) is a C++17 extension">,
2454  InGroup<CXX17>;
2455def warn_for_range_begin_end_types_differ : Warning<
2456  "'begin' and 'end' returning different types (%0 and %1) is incompatible "
2457  "with C++ standards before C++17">, InGroup<CXXPre17Compat>, DefaultIgnore;
2458def note_in_for_range: Note<
2459  "when looking up '%select{begin|end}0' function for range expression "
2460  "of type %1">;
2461def err_for_range_invalid: Error<
2462  "invalid range expression of type %0; no viable '%select{begin|end}1' "
2463  "function available">;
2464def note_for_range_member_begin_end_ignored : Note<
2465  "member is not a candidate because range type %0 has no '%select{end|begin}1' member">;
2466def err_range_on_array_parameter : Error<
2467  "cannot build range expression with array function parameter %0 since "
2468  "parameter with array type %1 is treated as pointer type %2">;
2469def err_for_range_dereference : Error<
2470  "invalid range expression of type %0; did you mean to dereference it "
2471  "with '*'?">;
2472def note_for_range_invalid_iterator : Note <
2473  "in implicit call to 'operator%select{!=|*|++}0' for iterator of type %1">;
2474def note_for_range_begin_end : Note<
2475  "selected '%select{begin|end}0' %select{function|template }1%2 with iterator type %3">;
2476def warn_for_range_const_ref_binds_temp_built_from_ref : Warning<
2477  "loop variable %0 "
2478  "%diff{of type $ binds to a temporary constructed from type $"
2479  "|binds to a temporary constructed from a different type}1,2">,
2480  InGroup<RangeLoopConstruct>, DefaultIgnore;
2481def note_use_type_or_non_reference : Note<
2482  "use non-reference type %0 to make construction explicit or type %1 to prevent copying">;
2483def warn_for_range_ref_binds_ret_temp : Warning<
2484  "loop variable %0 binds to a temporary value produced by a range of type %1">,
2485  InGroup<RangeLoopBindReference>, DefaultIgnore;
2486def note_use_non_reference_type : Note<"use non-reference type %0">;
2487def warn_for_range_copy : Warning<
2488  "loop variable %0 creates a copy from type %1">,
2489  InGroup<RangeLoopConstruct>, DefaultIgnore;
2490def note_use_reference_type : Note<"use reference type %0 to prevent copying">;
2491def err_objc_for_range_init_stmt : Error<
2492  "initialization statement is not supported when iterating over Objective-C "
2493  "collection">;
2494
2495// C++11 constexpr
2496def warn_cxx98_compat_constexpr : Warning<
2497  "'constexpr' specifier is incompatible with C++98">,
2498  InGroup<CXX98Compat>, DefaultIgnore;
2499// FIXME: Maybe this should also go in -Wc++14-compat?
2500def warn_cxx14_compat_constexpr_not_const : Warning<
2501  "'constexpr' non-static member function will not be implicitly 'const' "
2502  "in C++14; add 'const' to avoid a change in behavior">,
2503  InGroup<DiagGroup<"constexpr-not-const">>;
2504def err_invalid_consteval_take_address : Error<
2505  "cannot take address of consteval function %0 outside"
2506  " of an immediate invocation">;
2507def err_invalid_consteval_call : Error<
2508  "call to consteval function %q0 is not a constant expression">;
2509def err_invalid_consteval_decl_kind : Error<
2510  "%0 cannot be declared consteval">;
2511def err_invalid_constexpr : Error<
2512  "%select{function parameter|typedef}0 "
2513  "cannot be %sub{select_constexpr_spec_kind}1">;
2514def err_invalid_constexpr_member : Error<"non-static data member cannot be "
2515  "constexpr%select{; did you intend to make it %select{const|static}0?|}1">;
2516def err_constexpr_tag : Error<
2517  "%select{class|struct|interface|union|enum}0 "
2518  "cannot be marked %sub{select_constexpr_spec_kind}1">;
2519def err_constexpr_dtor : Error<
2520  "destructor cannot be declared %sub{select_constexpr_spec_kind}0">;
2521def err_constexpr_dtor_subobject : Error<
2522  "destructor cannot be declared %sub{select_constexpr_spec_kind}0 because "
2523  "%select{data member %2|base class %3}1 does not have a "
2524  "constexpr destructor">;
2525def note_constexpr_dtor_subobject : Note<
2526  "%select{data member %1|base class %2}0 declared here">;
2527def err_constexpr_wrong_decl_kind : Error<
2528  "%sub{select_constexpr_spec_kind}0 can only be used "
2529  "in %select{|variable and function|function|variable}0 declarations">;
2530def err_invalid_constexpr_var_decl : Error<
2531  "constexpr variable declaration must be a definition">;
2532def err_constexpr_static_mem_var_requires_init : Error<
2533  "declaration of constexpr static data member %0 requires an initializer">;
2534def err_constexpr_var_non_literal : Error<
2535  "constexpr variable cannot have non-literal type %0">;
2536def err_constexpr_var_requires_const_init : Error<
2537  "constexpr variable %0 must be initialized by a constant expression">;
2538def err_constexpr_var_requires_const_destruction : Error<
2539  "constexpr variable %0 must have constant destruction">;
2540def err_constexpr_redecl_mismatch : Error<
2541  "%select{non-constexpr|constexpr|consteval}1 declaration of %0"
2542  " follows %select{non-constexpr|constexpr|consteval}2 declaration">;
2543def err_constexpr_virtual : Error<"virtual function cannot be constexpr">;
2544def warn_cxx17_compat_constexpr_virtual : Warning<
2545  "virtual constexpr functions are incompatible with "
2546  "C++ standards before C++20">, InGroup<CXXPre20Compat>, DefaultIgnore;
2547def err_constexpr_virtual_base : Error<
2548  "constexpr %select{member function|constructor}0 not allowed in "
2549  "%select{struct|interface|class}1 with virtual base "
2550  "%plural{1:class|:classes}2">;
2551def note_non_literal_incomplete : Note<
2552  "incomplete type %0 is not a literal type">;
2553def note_non_literal_virtual_base : Note<"%select{struct|interface|class}0 "
2554  "with virtual base %plural{1:class|:classes}1 is not a literal type">;
2555def note_constexpr_virtual_base_here : Note<"virtual base class declared here">;
2556def err_constexpr_non_literal_return : Error<
2557  "%select{constexpr|consteval}0 function's return type %1 is not a literal type">;
2558def err_constexpr_non_literal_param : Error<
2559  "%select{constexpr|consteval}2 %select{function|constructor}1's %ordinal0 parameter type %3 is "
2560  "not a literal type">;
2561def err_constexpr_body_invalid_stmt : Error<
2562  "statement not allowed in %select{constexpr|consteval}1 %select{function|constructor}0">;
2563def ext_constexpr_body_invalid_stmt : ExtWarn<
2564  "use of this statement in a constexpr %select{function|constructor}0 "
2565  "is a C++14 extension">, InGroup<CXX14>;
2566def warn_cxx11_compat_constexpr_body_invalid_stmt : Warning<
2567  "use of this statement in a constexpr %select{function|constructor}0 "
2568  "is incompatible with C++ standards before C++14">,
2569  InGroup<CXXPre14Compat>, DefaultIgnore;
2570def ext_constexpr_body_invalid_stmt_cxx20 : ExtWarn<
2571  "use of this statement in a constexpr %select{function|constructor}0 "
2572  "is a C++20 extension">, InGroup<CXX20>;
2573def warn_cxx17_compat_constexpr_body_invalid_stmt : Warning<
2574  "use of this statement in a constexpr %select{function|constructor}0 "
2575  "is incompatible with C++ standards before C++20">,
2576  InGroup<CXXPre20Compat>, DefaultIgnore;
2577def ext_constexpr_type_definition : ExtWarn<
2578  "type definition in a constexpr %select{function|constructor}0 "
2579  "is a C++14 extension">, InGroup<CXX14>;
2580def warn_cxx11_compat_constexpr_type_definition : Warning<
2581  "type definition in a constexpr %select{function|constructor}0 "
2582  "is incompatible with C++ standards before C++14">,
2583  InGroup<CXXPre14Compat>, DefaultIgnore;
2584def err_constexpr_vla : Error<
2585  "variably-modified type %0 cannot be used in a constexpr "
2586  "%select{function|constructor}1">;
2587def ext_constexpr_local_var : ExtWarn<
2588  "variable declaration in a constexpr %select{function|constructor}0 "
2589  "is a C++14 extension">, InGroup<CXX14>;
2590def warn_cxx11_compat_constexpr_local_var : Warning<
2591  "variable declaration in a constexpr %select{function|constructor}0 "
2592  "is incompatible with C++ standards before C++14">,
2593  InGroup<CXXPre14Compat>, DefaultIgnore;
2594def err_constexpr_local_var_static : Error<
2595  "%select{static|thread_local}1 variable not permitted in a constexpr "
2596  "%select{function|constructor}0">;
2597def err_constexpr_local_var_non_literal_type : Error<
2598  "variable of non-literal type %1 cannot be defined in a constexpr "
2599  "%select{function|constructor}0">;
2600def ext_constexpr_local_var_no_init : ExtWarn<
2601  "uninitialized variable in a constexpr %select{function|constructor}0 "
2602  "is a C++20 extension">, InGroup<CXX20>;
2603def warn_cxx17_compat_constexpr_local_var_no_init : Warning<
2604  "uninitialized variable in a constexpr %select{function|constructor}0 "
2605  "is incompatible with C++ standards before C++20">,
2606  InGroup<CXXPre20Compat>, DefaultIgnore;
2607def ext_constexpr_function_never_constant_expr : ExtWarn<
2608  "%select{constexpr|consteval}1 %select{function|constructor}0 never produces a "
2609  "constant expression">, InGroup<DiagGroup<"invalid-constexpr">>, DefaultError;
2610def err_attr_cond_never_constant_expr : Error<
2611  "%0 attribute expression never produces a constant expression">;
2612def err_diagnose_if_invalid_diagnostic_type : Error<
2613  "invalid diagnostic type for 'diagnose_if'; use \"error\" or \"warning\" "
2614  "instead">;
2615def err_constexpr_body_no_return : Error<
2616  "no return statement in %select{constexpr|consteval}0 function">;
2617def err_constexpr_return_missing_expr : Error<
2618  "non-void %select{constexpr|consteval}1 function %0 should return a value">;
2619def warn_cxx11_compat_constexpr_body_no_return : Warning<
2620  "constexpr function with no return statements is incompatible with C++ "
2621  "standards before C++14">, InGroup<CXXPre14Compat>, DefaultIgnore;
2622def ext_constexpr_body_multiple_return : ExtWarn<
2623  "multiple return statements in constexpr function is a C++14 extension">,
2624  InGroup<CXX14>;
2625def warn_cxx11_compat_constexpr_body_multiple_return : Warning<
2626  "multiple return statements in constexpr function "
2627  "is incompatible with C++ standards before C++14">,
2628  InGroup<CXXPre14Compat>, DefaultIgnore;
2629def note_constexpr_body_previous_return : Note<
2630  "previous return statement is here">;
2631
2632// C++20 function try blocks in constexpr
2633def ext_constexpr_function_try_block_cxx20 : ExtWarn<
2634  "function try block in constexpr %select{function|constructor}0 is "
2635  "a C++20 extension">, InGroup<CXX20>;
2636def warn_cxx17_compat_constexpr_function_try_block : Warning<
2637  "function try block in constexpr %select{function|constructor}0 is "
2638  "incompatible with C++ standards before C++20">,
2639  InGroup<CXXPre20Compat>, DefaultIgnore;
2640
2641def ext_constexpr_union_ctor_no_init : ExtWarn<
2642  "constexpr union constructor that does not initialize any member "
2643  "is a C++20 extension">, InGroup<CXX20>;
2644def warn_cxx17_compat_constexpr_union_ctor_no_init : Warning<
2645  "constexpr union constructor that does not initialize any member "
2646  "is incompatible with C++ standards before C++20">,
2647  InGroup<CXXPre20Compat>, DefaultIgnore;
2648def ext_constexpr_ctor_missing_init : ExtWarn<
2649  "constexpr constructor that does not initialize all members "
2650  "is a C++20 extension">, InGroup<CXX20>;
2651def warn_cxx17_compat_constexpr_ctor_missing_init : Warning<
2652  "constexpr constructor that does not initialize all members "
2653  "is incompatible with C++ standards before C++20">,
2654  InGroup<CXXPre20Compat>, DefaultIgnore;
2655def note_constexpr_ctor_missing_init : Note<
2656  "member not initialized by constructor">;
2657def note_non_literal_no_constexpr_ctors : Note<
2658  "%0 is not literal because it is not an aggregate and has no constexpr "
2659  "constructors other than copy or move constructors">;
2660def note_non_literal_base_class : Note<
2661  "%0 is not literal because it has base class %1 of non-literal type">;
2662def note_non_literal_field : Note<
2663  "%0 is not literal because it has data member %1 of "
2664  "%select{non-literal|volatile}3 type %2">;
2665def note_non_literal_user_provided_dtor : Note<
2666  "%0 is not literal because it has a user-provided destructor">;
2667def note_non_literal_nontrivial_dtor : Note<
2668  "%0 is not literal because it has a non-trivial destructor">;
2669def note_non_literal_non_constexpr_dtor : Note<
2670  "%0 is not literal because its destructor is not constexpr">;
2671def note_non_literal_lambda : Note<
2672  "lambda closure types are non-literal types before C++17">;
2673def warn_private_extern : Warning<
2674  "use of __private_extern__ on a declaration may not produce external symbol "
2675  "private to the linkage unit and is deprecated">, InGroup<PrivateExtern>;
2676def note_private_extern : Note<
2677  "use __attribute__((visibility(\"hidden\"))) attribute instead">;
2678
2679// C++ Concepts
2680def err_concept_decls_may_only_appear_in_global_namespace_scope : Error<
2681  "concept declarations may only appear in global or namespace scope">;
2682def err_concept_no_parameters : Error<
2683  "concept template parameter list must have at least one parameter; explicit "
2684  "specialization of concepts is not allowed">;
2685def err_concept_extra_headers : Error<
2686  "extraneous template parameter list in concept definition">;
2687def err_concept_no_associated_constraints : Error<
2688  "concept cannot have associated constraints">;
2689def err_non_constant_constraint_expression : Error<
2690  "substitution into constraint expression resulted in a non-constant "
2691  "expression">;
2692def err_non_bool_atomic_constraint : Error<
2693  "atomic constraint must be of type 'bool' (found %0)">;
2694def err_template_arg_list_constraints_not_satisfied : Error<
2695  "constraints not satisfied for %select{class template|function template|variable template|alias template|"
2696  "template template parameter|template}0 %1%2">;
2697def note_substituted_constraint_expr_is_ill_formed : Note<
2698  "because substituted constraint expression is ill-formed%0">;
2699def note_atomic_constraint_evaluated_to_false : Note<
2700  "%select{and|because}0 '%1' evaluated to false">;
2701def note_concept_specialization_constraint_evaluated_to_false : Note<
2702  "%select{and|because}0 '%1' evaluated to false">;
2703def note_single_arg_concept_specialization_constraint_evaluated_to_false : Note<
2704  "%select{and|because}0 %1 does not satisfy %2">;
2705def note_atomic_constraint_evaluated_to_false_elaborated : Note<
2706  "%select{and|because}0 '%1' (%2 %3 %4) evaluated to false">;
2707def err_constrained_virtual_method : Error<
2708  "virtual function cannot have a requires clause">;
2709def err_trailing_requires_clause_on_deduction_guide : Error<
2710  "deduction guide cannot have a requires clause">;
2711def err_reference_to_function_with_unsatisfied_constraints : Error<
2712  "invalid reference to function %0: constraints not satisfied">;
2713def err_requires_expr_local_parameter_default_argument : Error<
2714  "default arguments not allowed for parameters of a requires expression">;
2715def err_requires_expr_parameter_referenced_in_evaluated_context : Error<
2716  "constraint variable %0 cannot be used in an evaluated context">;
2717def note_expr_requirement_expr_substitution_error : Note<
2718  "%select{and|because}0 '%1' would be invalid: %2">;
2719def note_expr_requirement_expr_unknown_substitution_error : Note<
2720  "%select{and|because}0 '%1' would be invalid">;
2721def note_expr_requirement_noexcept_not_met : Note<
2722  "%select{and|because}0 '%1' may throw an exception">;
2723def note_expr_requirement_type_requirement_substitution_error : Note<
2724  "%select{and|because}0 '%1' would be invalid: %2">;
2725def note_expr_requirement_type_requirement_unknown_substitution_error : Note<
2726  "%select{and|because}0 '%1' would be invalid">;
2727def note_expr_requirement_constraints_not_satisfied : Note<
2728  "%select{and|because}0 type constraint '%1' was not satisfied:">;
2729def note_expr_requirement_constraints_not_satisfied_simple : Note<
2730  "%select{and|because}0 %1 does not satisfy %2:">;
2731def note_type_requirement_substitution_error : Note<
2732  "%select{and|because}0 '%1' would be invalid: %2">;
2733def note_type_requirement_unknown_substitution_error : Note<
2734  "%select{and|because}0 '%1' would be invalid">;
2735def note_nested_requirement_substitution_error : Note<
2736  "%select{and|because}0 '%1' would be invalid: %2">;
2737def note_nested_requirement_unknown_substitution_error : Note<
2738  "%select{and|because}0 '%1' would be invalid">;
2739def note_ambiguous_atomic_constraints : Note<
2740  "similar constraint expressions not considered equivalent; constraint "
2741  "expressions cannot be considered equivalent unless they originate from the "
2742  "same concept">;
2743def note_ambiguous_atomic_constraints_similar_expression : Note<
2744  "similar constraint expression here">;
2745def err_unsupported_placeholder_constraint : Error<
2746  "constrained placeholder types other than simple 'auto' on non-type template "
2747  "parameters not supported yet">;
2748
2749def err_template_different_requires_clause : Error<
2750  "requires clause differs in template redeclaration">;
2751def err_template_different_type_constraint : Error<
2752  "type constraint differs in template redeclaration">;
2753def err_template_template_parameter_not_at_least_as_constrained : Error<
2754  "template template argument %0 is more constrained than template template "
2755  "parameter %1">;
2756
2757def err_type_constraint_non_type_concept : Error<
2758  "concept named in type constraint is not a type concept">;
2759def err_type_constraint_missing_arguments : Error<
2760  "%0 requires more than 1 template argument; provide the remaining arguments "
2761  "explicitly to use it here">;
2762def err_placeholder_constraints_not_satisfied : Error<
2763  "deduced type %0 does not satisfy %1">;
2764
2765// C++11 char16_t/char32_t
2766def warn_cxx98_compat_unicode_type : Warning<
2767  "'%0' type specifier is incompatible with C++98">,
2768  InGroup<CXX98Compat>, DefaultIgnore;
2769def warn_cxx17_compat_unicode_type : Warning<
2770  "'char8_t' type specifier is incompatible with C++ standards before C++20">,
2771  InGroup<CXXPre20Compat>, DefaultIgnore;
2772
2773// __make_integer_seq
2774def err_integer_sequence_negative_length : Error<
2775  "integer sequences must have non-negative sequence length">;
2776def err_integer_sequence_integral_element_type : Error<
2777  "integer sequences must have integral element type">;
2778
2779// __type_pack_element
2780def err_type_pack_element_out_of_bounds : Error<
2781  "a parameter pack may not be accessed at an out of bounds index">;
2782
2783// Objective-C++
2784def err_objc_decls_may_only_appear_in_global_scope : Error<
2785  "Objective-C declarations may only appear in global scope">;
2786def warn_auto_var_is_id : Warning<
2787  "'auto' deduced as 'id' in declaration of %0">,
2788  InGroup<DiagGroup<"auto-var-id">>;
2789
2790// Attributes
2791def warn_nomerge_attribute_ignored_in_stmt: Warning<
2792  "%0 attribute is ignored because there exists no call expression inside the "
2793  "statement">,
2794  InGroup<IgnoredAttributes>;
2795def err_nsobject_attribute : Error<
2796  "'NSObject' attribute is for pointer types only">;
2797def err_attributes_are_not_compatible : Error<
2798  "%0 and %1 attributes are not compatible">;
2799def err_attribute_invalid_argument : Error<
2800  "%select{a reference type|an array type|a non-vector or "
2801  "non-vectorizable scalar type}0 is an invalid argument to attribute %1">;
2802def err_attribute_wrong_number_arguments : Error<
2803  "%0 attribute %plural{0:takes no arguments|1:takes one argument|"
2804  ":requires exactly %1 arguments}1">;
2805def err_attribute_too_many_arguments : Error<
2806  "%0 attribute takes no more than %1 argument%s1">;
2807def err_attribute_too_few_arguments : Error<
2808  "%0 attribute takes at least %1 argument%s1">;
2809def err_attribute_invalid_vector_type : Error<"invalid vector element type %0">;
2810def err_attribute_invalid_matrix_type : Error<"invalid matrix element type %0">;
2811def err_attribute_bad_neon_vector_size : Error<
2812  "Neon vector size must be 64 or 128 bits">;
2813def err_attribute_requires_positive_integer : Error<
2814  "%0 attribute requires a %select{positive|non-negative}1 "
2815  "integral compile time constant expression">;
2816def err_attribute_requires_opencl_version : Error<
2817  "%0 attribute requires OpenCL version %1%select{| or above}2">;
2818def err_invalid_branch_protection_spec : Error<
2819  "invalid or misplaced branch protection specification '%0'">;
2820def warn_unsupported_target_attribute
2821    : Warning<"%select{unsupported|duplicate}0%select{| architecture}1 '%2' in"
2822              " the 'target' attribute string; 'target' attribute ignored">,
2823      InGroup<IgnoredAttributes>;
2824def err_attribute_unsupported
2825    : Error<"%0 attribute is not supported for this target">;
2826// The err_*_attribute_argument_not_int are separate because they're used by
2827// VerifyIntegerConstantExpression.
2828def err_aligned_attribute_argument_not_int : Error<
2829  "'aligned' attribute requires integer constant">;
2830def err_align_value_attribute_argument_not_int : Error<
2831  "'align_value' attribute requires integer constant">;
2832def err_alignas_attribute_wrong_decl_type : Error<
2833  "%0 attribute cannot be applied to a %select{function parameter|"
2834  "variable with 'register' storage class|'catch' variable|bit-field}1">;
2835def err_alignas_missing_on_definition : Error<
2836  "%0 must be specified on definition if it is specified on any declaration">;
2837def note_alignas_on_declaration : Note<"declared with %0 attribute here">;
2838def err_alignas_mismatch : Error<
2839  "redeclaration has different alignment requirement (%1 vs %0)">;
2840def err_alignas_underaligned : Error<
2841  "requested alignment is less than minimum alignment of %1 for type %0">;
2842def err_attribute_sizeless_type : Error<
2843  "%0 attribute cannot be applied to sizeless type %1">;
2844def err_attribute_argument_n_type : Error<
2845  "%0 attribute requires parameter %1 to be %select{int or bool|an integer "
2846  "constant|a string|an identifier}2">;
2847def err_attribute_argument_type : Error<
2848  "%0 attribute requires %select{int or bool|an integer "
2849  "constant|a string|an identifier}1">;
2850def err_attribute_argument_out_of_range : Error<
2851  "%0 attribute requires integer constant between %1 and %2 inclusive">;
2852def err_init_priority_object_attr : Error<
2853  "can only use 'init_priority' attribute on file-scope definitions "
2854  "of objects of class type">;
2855def err_attribute_argument_out_of_bounds : Error<
2856  "%0 attribute parameter %1 is out of bounds">;
2857def err_attribute_only_once_per_parameter : Error<
2858  "%0 attribute can only be applied once per parameter">;
2859def err_mismatched_uuid : Error<"uuid does not match previous declaration">;
2860def note_previous_uuid : Note<"previous uuid specified here">;
2861def warn_attribute_pointers_only : Warning<
2862  "%0 attribute only applies to%select{| constant}1 pointer arguments">,
2863  InGroup<IgnoredAttributes>;
2864def err_attribute_pointers_only : Error<warn_attribute_pointers_only.Text>;
2865def err_attribute_integers_only : Error<
2866  "%0 attribute argument may only refer to a function parameter of integer "
2867  "type">;
2868def warn_attribute_return_pointers_only : Warning<
2869  "%0 attribute only applies to return values that are pointers">,
2870  InGroup<IgnoredAttributes>;
2871def warn_attribute_return_pointers_refs_only : Warning<
2872  "%0 attribute only applies to return values that are pointers or references">,
2873  InGroup<IgnoredAttributes>;
2874def warn_attribute_pointer_or_reference_only : Warning<
2875  "%0 attribute only applies to a pointer or reference (%1 is invalid)">,
2876  InGroup<IgnoredAttributes>;
2877def err_attribute_no_member_pointers : Error<
2878  "%0 attribute cannot be used with pointers to members">;
2879def err_attribute_invalid_implicit_this_argument : Error<
2880  "%0 attribute is invalid for the implicit this argument">;
2881def err_ownership_type : Error<
2882  "%0 attribute only applies to %select{pointer|integer}1 arguments">;
2883def err_ownership_returns_index_mismatch : Error<
2884  "'ownership_returns' attribute index does not match; here it is %0">;
2885def note_ownership_returns_index_mismatch : Note<
2886  "declared with index %0 here">;
2887def err_format_strftime_third_parameter : Error<
2888  "strftime format attribute requires 3rd parameter to be 0">;
2889def err_format_attribute_requires_variadic : Error<
2890  "format attribute requires variadic function">;
2891def err_format_attribute_not : Error<"format argument not %0">;
2892def err_format_attribute_result_not : Error<"function does not return %0">;
2893def err_format_attribute_implicit_this_format_string : Error<
2894  "format attribute cannot specify the implicit this argument as the format "
2895  "string">;
2896def err_callback_attribute_no_callee : Error<
2897  "'callback' attribute specifies no callback callee">;
2898def err_callback_attribute_invalid_callee : Error<
2899  "'callback' attribute specifies invalid callback callee">;
2900def err_callback_attribute_multiple : Error<
2901  "multiple 'callback' attributes specified">;
2902def err_callback_attribute_argument_unknown : Error<
2903  "'callback' attribute argument %0 is not a known function parameter">;
2904def err_callback_callee_no_function_type : Error<
2905  "'callback' attribute callee does not have function type">;
2906def err_callback_callee_is_variadic : Error<
2907  "'callback' attribute callee may not be variadic">;
2908def err_callback_implicit_this_not_available : Error<
2909  "'callback' argument at position %0 references unavailable implicit 'this'">;
2910def err_init_method_bad_return_type : Error<
2911  "init methods must return an object pointer type, not %0">;
2912def err_attribute_invalid_size : Error<
2913  "vector size not an integral multiple of component size">;
2914def err_attribute_zero_size : Error<"zero %0 size">;
2915def err_attribute_size_too_large : Error<"%0 size too large">;
2916def err_typecheck_vector_not_convertable_implict_truncation : Error<
2917   "cannot convert between %select{scalar|vector}0 type %1 and vector type"
2918   " %2 as implicit conversion would cause truncation">;
2919def err_typecheck_vector_not_convertable : Error<
2920  "cannot convert between vector values of different size (%0 and %1)">;
2921def err_typecheck_vector_not_convertable_non_scalar : Error<
2922  "cannot convert between vector and non-scalar values (%0 and %1)">;
2923def err_typecheck_vector_lengths_not_equal : Error<
2924  "vector operands do not have the same number of elements (%0 and %1)">;
2925def warn_typecheck_vector_element_sizes_not_equal : Warning<
2926  "vector operands do not have the same elements sizes (%0 and %1)">,
2927  InGroup<DiagGroup<"vec-elem-size">>, DefaultError;
2928def err_ext_vector_component_exceeds_length : Error<
2929  "vector component access exceeds type %0">;
2930def err_ext_vector_component_name_illegal : Error<
2931  "illegal vector component name '%0'">;
2932def err_attribute_address_space_negative : Error<
2933  "address space is negative">;
2934def err_attribute_address_space_too_high : Error<
2935  "address space is larger than the maximum supported (%0)">;
2936def err_attribute_address_multiple_qualifiers : Error<
2937  "multiple address spaces specified for type">;
2938def warn_attribute_address_multiple_identical_qualifiers : Warning<
2939  "multiple identical address spaces specified for type">,
2940  InGroup<DuplicateDeclSpecifier>;
2941def err_attribute_not_clinkage : Error<
2942  "function type with %0 attribute must have C linkage">;
2943def err_function_decl_cmse_ns_call : Error<
2944  "functions may not be declared with 'cmse_nonsecure_call' attribute">;
2945def err_attribute_address_function_type : Error<
2946  "function type may not be qualified with an address space">;
2947def err_as_qualified_auto_decl : Error<
2948  "automatic variable qualified with an%select{| invalid}0 address space">;
2949def err_arg_with_address_space : Error<
2950  "parameter may not be qualified with an address space">;
2951def err_field_with_address_space : Error<
2952  "field may not be qualified with an address space">;
2953def err_compound_literal_with_address_space : Error<
2954  "compound literal in function scope may not be qualified with an address space">;
2955def err_address_space_mismatch_templ_inst : Error<
2956  "conflicting address space qualifiers are provided between types %0 and %1">;
2957def err_attr_objc_ownership_redundant : Error<
2958  "the type %0 is already explicitly ownership-qualified">;
2959def err_invalid_nsnumber_type : Error<
2960  "%0 is not a valid literal type for NSNumber">;
2961def err_objc_illegal_boxed_expression_type : Error<
2962  "illegal type %0 used in a boxed expression">;
2963def err_objc_non_trivially_copyable_boxed_expression_type : Error<
2964  "non-trivially copyable type %0 cannot be used in a boxed expression">;
2965def err_objc_incomplete_boxed_expression_type : Error<
2966  "incomplete type %0 used in a boxed expression">;
2967def err_undeclared_objc_literal_class : Error<
2968  "definition of class %0 must be available to use Objective-C "
2969  "%select{array literals|dictionary literals|numeric literals|boxed expressions|"
2970  "string literals}1">;
2971def err_undeclared_boxing_method : Error<
2972  "declaration of %0 is missing in %1 class">;
2973def err_objc_literal_method_sig : Error<
2974  "literal construction method %0 has incompatible signature">;
2975def note_objc_literal_method_param : Note<
2976  "%select{first|second|third}0 parameter has unexpected type %1 "
2977  "(should be %2)">;
2978def note_objc_literal_method_return : Note<
2979  "method returns unexpected type %0 (should be an object type)">;
2980def err_invalid_collection_element : Error<
2981  "collection element of type %0 is not an Objective-C object">;
2982def err_box_literal_collection : Error<
2983  "%select{string|character|boolean|numeric}0 literal must be prefixed by '@' "
2984  "in a collection">;
2985def warn_objc_literal_comparison : Warning<
2986  "direct comparison of %select{an array literal|a dictionary literal|"
2987  "a numeric literal|a boxed expression|}0 has undefined behavior">,
2988  InGroup<ObjCLiteralComparison>;
2989def err_missing_atsign_prefix : Error<
2990  "%select{string|numeric}0 literal must be prefixed by '@'">;
2991def warn_objc_string_literal_comparison : Warning<
2992  "direct comparison of a string literal has undefined behavior">,
2993  InGroup<ObjCStringComparison>;
2994def warn_concatenated_nsarray_literal : Warning<
2995  "concatenated NSString literal for an NSArray expression - "
2996  "possibly missing a comma">,
2997  InGroup<ObjCStringConcatenation>;
2998def note_objc_literal_comparison_isequal : Note<
2999  "use 'isEqual:' instead">;
3000def warn_objc_collection_literal_element : Warning<
3001  "object of type %0 is not compatible with "
3002  "%select{array element type|dictionary key type|dictionary value type}1 %2">,
3003  InGroup<ObjCLiteralConversion>;
3004def warn_nsdictionary_duplicate_key : Warning<
3005  "duplicate key in dictionary literal">,
3006  InGroup<DiagGroup<"objc-dictionary-duplicate-keys">>;
3007def note_nsdictionary_duplicate_key_here : Note<
3008  "previous equal key is here">;
3009def err_swift_param_attr_not_swiftcall : Error<
3010  "'%0' parameter can only be used with swiftcall calling convention">;
3011def err_swift_indirect_result_not_first : Error<
3012  "'swift_indirect_result' parameters must be first parameters of function">;
3013def err_swift_error_result_not_after_swift_context : Error<
3014  "'swift_error_result' parameter must follow 'swift_context' parameter">;
3015def err_swift_abi_parameter_wrong_type : Error<
3016  "'%0' parameter must have pointer%select{| to unqualified pointer}1 type; "
3017  "type here is %2">;
3018
3019def err_attribute_argument_invalid : Error<
3020  "%0 attribute argument is invalid: %select{max must be 0 since min is 0|"
3021  "min must not be greater than max}1">;
3022def err_attribute_argument_is_zero : Error<
3023  "%0 attribute must be greater than 0">;
3024def warn_attribute_argument_n_negative : Warning<
3025  "%0 attribute parameter %1 is negative and will be ignored">,
3026  InGroup<CudaCompat>;
3027def err_property_function_in_objc_container : Error<
3028  "use of Objective-C property in function nested in Objective-C "
3029  "container not supported, move function outside its container">;
3030
3031let CategoryName = "Cocoa API Issue" in {
3032def warn_objc_redundant_literal_use : Warning<
3033  "using %0 with a literal is redundant">, InGroup<ObjCRedundantLiteralUse>;
3034}
3035
3036def err_attr_tlsmodel_arg : Error<"tls_model must be \"global-dynamic\", "
3037  "\"local-dynamic\", \"initial-exec\" or \"local-exec\"">;
3038
3039def err_tls_var_aligned_over_maximum : Error<
3040  "alignment (%0) of thread-local variable %1 is greater than the maximum supported "
3041  "alignment (%2) for a thread-local variable on this target">;
3042
3043def err_only_annotate_after_access_spec : Error<
3044  "access specifier can only have annotation attributes">;
3045
3046def err_attribute_section_invalid_for_target : Error<
3047  "argument to %select{'code_seg'|'section'}1 attribute is not valid for this target: %0">;
3048def warn_attribute_section_drectve : Warning<
3049  "#pragma %0(\".drectve\") has undefined behavior, "
3050  "use #pragma comment(linker, ...) instead">, InGroup<MicrosoftDrectveSection>;
3051def warn_mismatched_section : Warning<
3052  "%select{codeseg|section}0 does not match previous declaration">, InGroup<Section>;
3053def warn_attribute_section_on_redeclaration : Warning<
3054  "section attribute is specified on redeclared variable">, InGroup<Section>;
3055def err_mismatched_code_seg_base : Error<
3056  "derived class must specify the same code segment as its base classes">;
3057def err_mismatched_code_seg_override : Error<
3058  "overriding virtual function must specify the same code segment as its overridden function">;
3059def err_conflicting_codeseg_attribute : Error<
3060  "conflicting code segment specifiers">;
3061def warn_duplicate_codeseg_attribute : Warning<
3062  "duplicate code segment specifiers">, InGroup<Section>;
3063
3064def err_anonymous_property: Error<
3065  "anonymous property is not supported">;
3066def err_property_is_variably_modified : Error<
3067  "property %0 has a variably modified type">;
3068def err_no_accessor_for_property : Error<
3069  "no %select{getter|setter}0 defined for property %1">;
3070def err_cannot_find_suitable_accessor : Error<
3071  "cannot find suitable %select{getter|setter}0 for property %1">;
3072
3073def warn_alloca : Warning<
3074  "use of function %0 is discouraged; there is no way to check for failure but "
3075  "failure may still occur, resulting in a possibly exploitable security vulnerability">,
3076  InGroup<DiagGroup<"alloca">>, DefaultIgnore;
3077
3078def warn_alloca_align_alignof : Warning<
3079  "second argument to __builtin_alloca_with_align is supposed to be in bits">,
3080  InGroup<DiagGroup<"alloca-with-align-alignof">>;
3081
3082def err_alignment_too_small : Error<
3083  "requested alignment must be %0 or greater">;
3084def err_alignment_too_big : Error<
3085  "requested alignment must be %0 or smaller">;
3086def err_alignment_not_power_of_two : Error<
3087  "requested alignment is not a power of 2">;
3088def warn_alignment_not_power_of_two : Warning<
3089  err_alignment_not_power_of_two.Text>,
3090  InGroup<DiagGroup<"non-power-of-two-alignment">>;
3091def err_alignment_dependent_typedef_name : Error<
3092  "requested alignment is dependent but declaration is not dependent">;
3093
3094def warn_alignment_builtin_useless : Warning<
3095  "%select{aligning a value|the result of checking whether a value is aligned}0"
3096  " to 1 byte is %select{a no-op|always true}0">, InGroup<TautologicalCompare>;
3097def err_attribute_aligned_too_great : Error<
3098  "requested alignment must be %0 bytes or smaller">;
3099def warn_assume_aligned_too_great
3100    : Warning<"requested alignment must be %0 bytes or smaller; maximum "
3101              "alignment assumed">,
3102      InGroup<DiagGroup<"builtin-assume-aligned-alignment">>;
3103def warn_redeclaration_without_attribute_prev_attribute_ignored : Warning<
3104  "%q0 redeclared without %1 attribute: previous %1 ignored">,
3105  InGroup<MicrosoftInconsistentDllImport>;
3106def warn_redeclaration_without_import_attribute : Warning<
3107  "%q0 redeclared without 'dllimport' attribute: 'dllexport' attribute added">,
3108  InGroup<MicrosoftInconsistentDllImport>;
3109def warn_dllimport_dropped_from_inline_function : Warning<
3110  "%q0 redeclared inline; %1 attribute ignored">,
3111  InGroup<IgnoredAttributes>;
3112def warn_attribute_ignored : Warning<"%0 attribute ignored">,
3113  InGroup<IgnoredAttributes>;
3114def warn_nothrow_attribute_ignored : Warning<"'nothrow' attribute conflicts with"
3115  " exception specification; attribute ignored">,
3116  InGroup<IgnoredAttributes>;
3117def warn_attribute_ignored_on_inline :
3118  Warning<"%0 attribute ignored on inline function">,
3119  InGroup<IgnoredAttributes>;
3120def warn_nocf_check_attribute_ignored :
3121  Warning<"'nocf_check' attribute ignored; use -fcf-protection to enable the attribute">,
3122  InGroup<IgnoredAttributes>;
3123def warn_attribute_after_definition_ignored : Warning<
3124  "attribute %0 after definition is ignored">,
3125   InGroup<IgnoredAttributes>;
3126def warn_cxx11_gnu_attribute_on_type : Warning<
3127  "attribute %0 ignored, because it cannot be applied to a type">,
3128  InGroup<IgnoredAttributes>;
3129def warn_unhandled_ms_attribute_ignored : Warning<
3130  "__declspec attribute %0 is not supported">,
3131  InGroup<IgnoredAttributes>;
3132def err_decl_attribute_invalid_on_stmt : Error<
3133  "%0 attribute cannot be applied to a statement">;
3134def err_stmt_attribute_invalid_on_decl : Error<
3135  "%0 attribute cannot be applied to a declaration">;
3136def warn_declspec_attribute_ignored : Warning<
3137  "attribute %0 is ignored, place it after "
3138  "\"%select{class|struct|interface|union|enum}1\" to apply attribute to "
3139  "type declaration">, InGroup<IgnoredAttributes>;
3140def warn_attribute_precede_definition : Warning<
3141  "attribute declaration must precede definition">,
3142  InGroup<IgnoredAttributes>;
3143def warn_attribute_void_function_method : Warning<
3144  "attribute %0 cannot be applied to "
3145  "%select{functions|Objective-C method}1 without return value">,
3146  InGroup<IgnoredAttributes>;
3147def warn_attribute_weak_on_field : Warning<
3148  "__weak attribute cannot be specified on a field declaration">,
3149  InGroup<IgnoredAttributes>;
3150def warn_gc_attribute_weak_on_local : Warning<
3151  "Objective-C GC does not allow weak variables on the stack">,
3152  InGroup<IgnoredAttributes>;
3153def warn_nsobject_attribute : Warning<
3154  "'NSObject' attribute may be put on a typedef only; attribute is ignored">,
3155  InGroup<NSobjectAttribute>;
3156def warn_independentclass_attribute : Warning<
3157  "'objc_independent_class' attribute may be put on a typedef only; "
3158  "attribute is ignored">,
3159  InGroup<IndependentClassAttribute>;
3160def warn_ptr_independentclass_attribute : Warning<
3161  "'objc_independent_class' attribute may be put on Objective-C object "
3162  "pointer type only; attribute is ignored">,
3163  InGroup<IndependentClassAttribute>;
3164def warn_attribute_weak_on_local : Warning<
3165  "__weak attribute cannot be specified on an automatic variable when ARC "
3166  "is not enabled">,
3167  InGroup<IgnoredAttributes>;
3168def warn_weak_identifier_undeclared : Warning<
3169  "weak identifier %0 never declared">;
3170def warn_attribute_cmse_entry_static : Warning<
3171  "'cmse_nonsecure_entry' cannot be applied to functions with internal linkage">,
3172  InGroup<IgnoredAttributes>;
3173def warn_cmse_nonsecure_union : Warning<
3174  "passing union across security boundary via %select{parameter %1|return value}0 "
3175  "may leak information">,
3176  InGroup<DiagGroup<"cmse-union-leak">>;
3177def err_attribute_weak_static : Error<
3178  "weak declaration cannot have internal linkage">;
3179def err_attribute_selectany_non_extern_data : Error<
3180  "'selectany' can only be applied to data items with external linkage">;
3181def err_declspec_thread_on_thread_variable : Error<
3182  "'__declspec(thread)' applied to variable that already has a "
3183  "thread-local storage specifier">;
3184def err_attribute_dll_not_extern : Error<
3185  "%q0 must have external linkage when declared %q1">;
3186def err_attribute_dll_thread_local : Error<
3187  "%q0 cannot be thread local when declared %q1">;
3188def err_attribute_dll_lambda : Error<
3189  "lambda cannot be declared %0">;
3190def warn_attribute_invalid_on_definition : Warning<
3191  "'%0' attribute cannot be specified on a definition">,
3192  InGroup<IgnoredAttributes>;
3193def err_attribute_dll_redeclaration : Error<
3194  "redeclaration of %q0 cannot add %q1 attribute">;
3195def warn_attribute_dll_redeclaration : Warning<
3196  "redeclaration of %q0 should not add %q1 attribute">,
3197  InGroup<DiagGroup<"dll-attribute-on-redeclaration">>;
3198def err_attribute_dllimport_function_definition : Error<
3199  "dllimport cannot be applied to non-inline function definition">;
3200def err_attribute_dll_deleted : Error<
3201  "attribute %q0 cannot be applied to a deleted function">;
3202def err_attribute_dllimport_data_definition : Error<
3203  "definition of dllimport data">;
3204def err_attribute_dllimport_static_field_definition : Error<
3205  "definition of dllimport static field not allowed">;
3206def warn_attribute_dllimport_static_field_definition : Warning<
3207  "definition of dllimport static field">,
3208  InGroup<DiagGroup<"dllimport-static-field-def">>;
3209def warn_attribute_dllexport_explicit_instantiation_decl : Warning<
3210  "explicit instantiation declaration should not be 'dllexport'">,
3211  InGroup<DiagGroup<"dllexport-explicit-instantiation-decl">>;
3212def warn_attribute_dllexport_explicit_instantiation_def : Warning<
3213  "'dllexport' attribute ignored on explicit instantiation definition">,
3214  InGroup<IgnoredAttributes>;
3215def warn_invalid_initializer_from_system_header : Warning<
3216  "invalid constructor form class in system header, should not be explicit">,
3217  InGroup<DiagGroup<"invalid-initializer-from-system-header">>;
3218def note_used_in_initialization_here : Note<"used in initialization here">;
3219def err_attribute_dll_member_of_dll_class : Error<
3220  "attribute %q0 cannot be applied to member of %q1 class">;
3221def warn_attribute_dll_instantiated_base_class : Warning<
3222  "propagating dll attribute to %select{already instantiated|explicitly specialized}0 "
3223  "base class template without dll attribute is not supported">,
3224  InGroup<DiagGroup<"unsupported-dll-base-class-template">>, DefaultIgnore;
3225def err_attribute_dll_ambiguous_default_ctor : Error<
3226  "'__declspec(dllexport)' cannot be applied to more than one default constructor in %0">;
3227def err_attribute_weakref_not_static : Error<
3228  "weakref declaration must have internal linkage">;
3229def err_attribute_weakref_not_global_context : Error<
3230  "weakref declaration of %0 must be in a global context">;
3231def err_attribute_weakref_without_alias : Error<
3232  "weakref declaration of %0 must also have an alias attribute">;
3233def err_alias_not_supported_on_darwin : Error <
3234  "aliases are not supported on darwin">;
3235def warn_attribute_wrong_decl_type_str : Warning<
3236  "%0 attribute only applies to %1">, InGroup<IgnoredAttributes>;
3237def err_attribute_wrong_decl_type_str : Error<
3238  warn_attribute_wrong_decl_type_str.Text>;
3239def warn_attribute_wrong_decl_type : Warning<
3240  "%0 attribute only applies to %select{"
3241  "functions"
3242  "|unions"
3243  "|variables and functions"
3244  "|functions and methods"
3245  "|functions, methods and blocks"
3246  "|functions, methods, and parameters"
3247  "|variables"
3248  "|variables and fields"
3249  "|variables, data members and tag types"
3250  "|types and namespaces"
3251  "|variables, functions and classes"
3252  "|kernel functions"
3253  "|non-K&R-style functions}1">,
3254  InGroup<IgnoredAttributes>;
3255def err_attribute_wrong_decl_type : Error<warn_attribute_wrong_decl_type.Text>;
3256def warn_type_attribute_wrong_type : Warning<
3257  "'%0' only applies to %select{function|pointer|"
3258  "Objective-C object or block pointer}1 types; type here is %2">,
3259  InGroup<IgnoredAttributes>;
3260def warn_incomplete_encoded_type : Warning<
3261  "encoding of %0 type is incomplete because %1 component has unknown encoding">,
3262  InGroup<DiagGroup<"encode-type">>;
3263def warn_gnu_inline_attribute_requires_inline : Warning<
3264  "'gnu_inline' attribute requires function to be marked 'inline',"
3265  " attribute ignored">,
3266  InGroup<IgnoredAttributes>;
3267def warn_gnu_inline_cplusplus_without_extern : Warning<
3268  "'gnu_inline' attribute without 'extern' in C++ treated as externally"
3269  " available, this changed in Clang 10">,
3270  InGroup<DiagGroup<"gnu-inline-cpp-without-extern">>;
3271def err_attribute_vecreturn_only_vector_member : Error<
3272  "the vecreturn attribute can only be used on a class or structure with one member, which must be a vector">;
3273def err_attribute_vecreturn_only_pod_record : Error<
3274  "the vecreturn attribute can only be used on a POD (plain old data) class or structure (i.e. no virtual functions)">;
3275def err_cconv_change : Error<
3276  "function declared '%0' here was previously declared "
3277  "%select{'%2'|without calling convention}1">;
3278def warn_cconv_unsupported : Warning<
3279  "%0 calling convention is not supported %select{"
3280  // Use CallingConventionIgnoredReason Enum to specify these.
3281  "for this target"
3282  "|on variadic function"
3283  "|on constructor/destructor"
3284  "|on builtin function"
3285  "}1">,
3286  InGroup<IgnoredAttributes>;
3287def error_cconv_unsupported : Error<warn_cconv_unsupported.Text>;
3288def err_cconv_knr : Error<
3289  "function with no prototype cannot use the %0 calling convention">;
3290def warn_cconv_knr : Warning<
3291  err_cconv_knr.Text>,
3292  InGroup<DiagGroup<"missing-prototype-for-cc">>;
3293def err_cconv_varargs : Error<
3294  "variadic function cannot use %0 calling convention">;
3295def err_regparm_mismatch : Error<"function declared with regparm(%0) "
3296  "attribute was previously declared "
3297  "%plural{0:without the regparm|:with the regparm(%1)}1 attribute">;
3298def err_function_attribute_mismatch : Error<
3299  "function declared with %0 attribute "
3300  "was previously declared without the %0 attribute">;
3301def err_objc_precise_lifetime_bad_type : Error<
3302  "objc_precise_lifetime only applies to retainable types; type here is %0">;
3303def warn_objc_precise_lifetime_meaningless : Error<
3304  "objc_precise_lifetime is not meaningful for "
3305  "%select{__unsafe_unretained|__autoreleasing}0 objects">;
3306def err_invalid_pcs : Error<"invalid PCS type">;
3307def warn_attribute_not_on_decl : Warning<
3308  "%0 attribute ignored when parsing type">, InGroup<IgnoredAttributes>;
3309def err_base_specifier_attribute : Error<
3310  "%0 attribute cannot be applied to a base specifier">;
3311def err_invalid_attribute_on_virtual_function : Error<
3312  "%0 attribute cannot be applied to virtual functions">;
3313def warn_declspec_allocator_nonpointer : Warning<
3314  "ignoring __declspec(allocator) because the function return type %0 is not "
3315  "a pointer or reference type">, InGroup<IgnoredAttributes>;
3316def err_cconv_incomplete_param_type : Error<
3317  "parameter %0 must have a complete type to use function %1 with the %2 "
3318  "calling convention">;
3319def err_attribute_output_parameter : Error<
3320  "attribute only applies to output parameters">;
3321
3322def ext_cannot_use_trivial_abi : ExtWarn<
3323  "'trivial_abi' cannot be applied to %0">, InGroup<IgnoredAttributes>;
3324def note_cannot_use_trivial_abi_reason : Note<
3325  "'trivial_abi' is disallowed on %0 because %select{"
3326  "its copy constructors and move constructors are all deleted|"
3327  "it is polymorphic|"
3328  "it has a base of a non-trivial class type|it has a virtual base|"
3329  "it has a __weak field|it has a field of a non-trivial class type}1">;
3330
3331// Availability attribute
3332def warn_availability_unknown_platform : Warning<
3333  "unknown platform %0 in availability macro">, InGroup<Availability>;
3334def warn_availability_version_ordering : Warning<
3335  "feature cannot be %select{introduced|deprecated|obsoleted}0 in %1 version "
3336  "%2 before it was %select{introduced|deprecated|obsoleted}3 in version %4; "
3337  "attribute ignored">, InGroup<Availability>;
3338def warn_mismatched_availability: Warning<
3339  "availability does not match previous declaration">, InGroup<Availability>;
3340def warn_mismatched_availability_override : Warning<
3341  "%select{|overriding }4method %select{introduced after|"
3342  "deprecated before|obsoleted before}0 "
3343  "%select{the protocol method it implements|overridden method}4 "
3344  "on %1 (%2 vs. %3)">, InGroup<Availability>;
3345def warn_mismatched_availability_override_unavail : Warning<
3346  "%select{|overriding }1method cannot be unavailable on %0 when "
3347  "%select{the protocol method it implements|its overridden method}1 is "
3348  "available">,
3349  InGroup<Availability>;
3350def warn_availability_on_static_initializer : Warning<
3351  "ignoring availability attribute %select{on '+load' method|"
3352  "with constructor attribute|with destructor attribute}0">,
3353  InGroup<Availability>;
3354def note_overridden_method : Note<
3355  "overridden method is here">;
3356def warn_availability_swift_unavailable_deprecated_only : Warning<
3357  "only 'unavailable' and 'deprecated' are supported for Swift availability">,
3358  InGroup<Availability>;
3359def note_protocol_method : Note<
3360  "protocol method is here">;
3361
3362def warn_unguarded_availability :
3363  Warning<"%0 is only available on %1 %2 or newer">,
3364  InGroup<UnguardedAvailability>, DefaultIgnore;
3365def warn_unguarded_availability_new :
3366  Warning<warn_unguarded_availability.Text>,
3367  InGroup<UnguardedAvailabilityNew>;
3368def note_decl_unguarded_availability_silence : Note<
3369  "annotate %select{%1|anonymous %1}0 with an availability attribute to silence this warning">;
3370def note_unguarded_available_silence : Note<
3371  "enclose %0 in %select{an @available|a __builtin_available}1 check to silence"
3372  " this warning">;
3373def warn_at_available_unchecked_use : Warning<
3374  "%select{@available|__builtin_available}0 does not guard availability here; "
3375  "use if (%select{@available|__builtin_available}0) instead">,
3376  InGroup<DiagGroup<"unsupported-availability-guard">>;
3377
3378// Thread Safety Attributes
3379def warn_thread_attribute_ignored : Warning<
3380  "ignoring %0 attribute because its argument is invalid">,
3381  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
3382def warn_thread_attribute_not_on_non_static_member : Warning<
3383  "%0 attribute without capability arguments can only be applied to non-static "
3384  "methods of a class">,
3385  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
3386def warn_thread_attribute_not_on_capability_member : Warning<
3387  "%0 attribute without capability arguments refers to 'this', but %1 isn't "
3388  "annotated with 'capability' or 'scoped_lockable' attribute">,
3389  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
3390def warn_thread_attribute_argument_not_lockable : Warning<
3391  "%0 attribute requires arguments whose type is annotated "
3392  "with 'capability' attribute; type here is %1">,
3393  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
3394def warn_thread_attribute_decl_not_lockable : Warning<
3395  "%0 attribute can only be applied in a context annotated "
3396  "with 'capability' attribute">,
3397  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
3398def warn_thread_attribute_decl_not_pointer : Warning<
3399  "%0 only applies to pointer types; type here is %1">,
3400  InGroup<ThreadSafetyAttributes>, DefaultIgnore;
3401def err_attribute_argument_out_of_bounds_extra_info : Error<
3402  "%0 attribute parameter %1 is out of bounds: "
3403  "%plural{0:no parameters to index into|"
3404  "1:can only be 1, since there is one parameter|"
3405  ":must be between 1 and %2}2">;
3406
3407// Thread Safety Analysis
3408def warn_unlock_but_no_lock : Warning<"releasing %0 '%1' that was not held">,
3409  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3410def warn_unlock_kind_mismatch : Warning<
3411  "releasing %0 '%1' using %select{shared|exclusive}2 access, expected "
3412  "%select{shared|exclusive}3 access">,
3413  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3414def warn_double_lock : Warning<"acquiring %0 '%1' that is already held">,
3415  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3416def warn_no_unlock : Warning<
3417  "%0 '%1' is still held at the end of function">,
3418  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3419def warn_expecting_locked : Warning<
3420  "expecting %0 '%1' to be held at the end of function">,
3421  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3422// FIXME: improve the error message about locks not in scope
3423def warn_lock_some_predecessors : Warning<
3424  "%0 '%1' is not held on every path through here">,
3425  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3426def warn_expecting_lock_held_on_loop : Warning<
3427  "expecting %0 '%1' to be held at start of each loop">,
3428  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3429def note_locked_here : Note<"%0 acquired here">;
3430def note_unlocked_here : Note<"%0 released here">;
3431def warn_lock_exclusive_and_shared : Warning<
3432  "%0 '%1' is acquired exclusively and shared in the same scope">,
3433  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3434def note_lock_exclusive_and_shared : Note<
3435  "the other acquisition of %0 '%1' is here">;
3436def warn_variable_requires_any_lock : Warning<
3437  "%select{reading|writing}1 variable %0 requires holding "
3438  "%select{any mutex|any mutex exclusively}1">,
3439  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3440def warn_var_deref_requires_any_lock : Warning<
3441  "%select{reading|writing}1 the value pointed to by %0 requires holding "
3442  "%select{any mutex|any mutex exclusively}1">,
3443  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3444def warn_fun_excludes_mutex : Warning<
3445  "cannot call function '%1' while %0 '%2' is held">,
3446  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3447def warn_cannot_resolve_lock : Warning<
3448  "cannot resolve lock expression">,
3449  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3450def warn_acquired_before : Warning<
3451  "%0 '%1' must be acquired before '%2'">,
3452  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3453def warn_acquired_before_after_cycle : Warning<
3454  "Cycle in acquired_before/after dependencies, starting with '%0'">,
3455  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3456
3457
3458// Thread safety warnings negative capabilities
3459def warn_acquire_requires_negative_cap : Warning<
3460  "acquiring %0 '%1' requires negative capability '%2'">,
3461  InGroup<ThreadSafetyNegative>, DefaultIgnore;
3462
3463// Thread safety warnings on pass by reference
3464def warn_guarded_pass_by_reference : Warning<
3465  "passing variable %1 by reference requires holding %0 "
3466  "%select{'%2'|'%2' exclusively}3">,
3467  InGroup<ThreadSafetyReference>, DefaultIgnore;
3468def warn_pt_guarded_pass_by_reference : Warning<
3469  "passing the value that %1 points to by reference requires holding %0 "
3470  "%select{'%2'|'%2' exclusively}3">,
3471  InGroup<ThreadSafetyReference>, DefaultIgnore;
3472
3473// Imprecise thread safety warnings
3474def warn_variable_requires_lock : Warning<
3475  "%select{reading|writing}3 variable %1 requires holding %0 "
3476  "%select{'%2'|'%2' exclusively}3">,
3477  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3478def warn_var_deref_requires_lock : Warning<
3479  "%select{reading|writing}3 the value pointed to by %1 requires "
3480  "holding %0 %select{'%2'|'%2' exclusively}3">,
3481  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3482def warn_fun_requires_lock : Warning<
3483  "calling function %1 requires holding %0 %select{'%2'|'%2' exclusively}3">,
3484  InGroup<ThreadSafetyAnalysis>, DefaultIgnore;
3485
3486// Precise thread safety warnings
3487def warn_variable_requires_lock_precise :
3488  Warning<warn_variable_requires_lock.Text>,
3489  InGroup<ThreadSafetyPrecise>, DefaultIgnore;
3490def warn_var_deref_requires_lock_precise :
3491  Warning<warn_var_deref_requires_lock.Text>,
3492  InGroup<ThreadSafetyPrecise>, DefaultIgnore;
3493def warn_fun_requires_lock_precise :
3494  Warning<warn_fun_requires_lock.Text>,
3495  InGroup<ThreadSafetyPrecise>, DefaultIgnore;
3496def note_found_mutex_near_match : Note<"found near match '%0'">;
3497
3498// Verbose thread safety warnings
3499def warn_thread_safety_verbose : Warning<"Thread safety verbose warning.">,
3500  InGroup<ThreadSafetyVerbose>, DefaultIgnore;
3501def note_thread_warning_in_fun : Note<"Thread warning in function %0">;
3502def note_guarded_by_declared_here : Note<"Guarded_by declared here.">;
3503
3504// Dummy warning that will trigger "beta" warnings from the analysis if enabled.
3505def warn_thread_safety_beta : Warning<"Thread safety beta warning.">,
3506  InGroup<ThreadSafetyBeta>, DefaultIgnore;
3507
3508// Consumed warnings
3509def warn_use_in_invalid_state : Warning<
3510  "invalid invocation of method '%0' on object '%1' while it is in the '%2' "
3511  "state">, InGroup<Consumed>, DefaultIgnore;
3512def warn_use_of_temp_in_invalid_state : Warning<
3513  "invalid invocation of method '%0' on a temporary object while it is in the "
3514  "'%1' state">, InGroup<Consumed>, DefaultIgnore;
3515def warn_attr_on_unconsumable_class : Warning<
3516  "consumed analysis attribute is attached to member of class %0 which isn't "
3517  "marked as consumable">, InGroup<Consumed>, DefaultIgnore;
3518def warn_return_typestate_for_unconsumable_type : Warning<
3519  "return state set for an unconsumable type '%0'">, InGroup<Consumed>,
3520  DefaultIgnore;
3521def warn_return_typestate_mismatch : Warning<
3522  "return value not in expected state; expected '%0', observed '%1'">,
3523  InGroup<Consumed>, DefaultIgnore;
3524def warn_loop_state_mismatch : Warning<
3525  "state of variable '%0' must match at the entry and exit of loop">,
3526  InGroup<Consumed>, DefaultIgnore;
3527def warn_param_return_typestate_mismatch : Warning<
3528  "parameter '%0' not in expected state when the function returns: expected "
3529  "'%1', observed '%2'">, InGroup<Consumed>, DefaultIgnore;
3530def warn_param_typestate_mismatch : Warning<
3531  "argument not in expected state; expected '%0', observed '%1'">,
3532  InGroup<Consumed>, DefaultIgnore;
3533
3534// no_sanitize attribute
3535def warn_unknown_sanitizer_ignored : Warning<
3536  "unknown sanitizer '%0' ignored">, InGroup<UnknownSanitizers>;
3537
3538def warn_impcast_vector_scalar : Warning<
3539  "implicit conversion turns vector to scalar: %0 to %1">,
3540  InGroup<Conversion>, DefaultIgnore;
3541def warn_impcast_complex_scalar : Warning<
3542  "implicit conversion discards imaginary component: %0 to %1">,
3543  InGroup<Conversion>, DefaultIgnore;
3544def err_impcast_complex_scalar : Error<
3545  "implicit conversion from %0 to %1 is not permitted in C++">;
3546def warn_impcast_float_precision : Warning<
3547  "implicit conversion loses floating-point precision: %0 to %1">,
3548  InGroup<ImplicitFloatConversion>, DefaultIgnore;
3549def warn_impcast_float_result_precision : Warning<
3550  "implicit conversion when assigning computation result loses floating-point precision: %0 to %1">,
3551  InGroup<ImplicitFloatConversion>, DefaultIgnore;
3552def warn_impcast_double_promotion : Warning<
3553  "implicit conversion increases floating-point precision: %0 to %1">,
3554  InGroup<DoublePromotion>, DefaultIgnore;
3555def warn_impcast_integer_sign : Warning<
3556  "implicit conversion changes signedness: %0 to %1">,
3557  InGroup<SignConversion>, DefaultIgnore;
3558def warn_impcast_integer_sign_conditional : Warning<
3559  "operand of ? changes signedness: %0 to %1">,
3560  InGroup<SignConversion>, DefaultIgnore;
3561def warn_impcast_integer_precision : Warning<
3562  "implicit conversion loses integer precision: %0 to %1">,
3563  InGroup<ImplicitIntConversion>, DefaultIgnore;
3564def warn_impcast_high_order_zero_bits : Warning<
3565  "higher order bits are zeroes after implicit conversion">,
3566  InGroup<ImplicitIntConversion>, DefaultIgnore;
3567def warn_impcast_nonnegative_result : Warning<
3568  "the resulting value is always non-negative after implicit conversion">,
3569  InGroup<SignConversion>, DefaultIgnore;
3570def warn_impcast_integer_64_32 : Warning<
3571  "implicit conversion loses integer precision: %0 to %1">,
3572  InGroup<Shorten64To32>, DefaultIgnore;
3573def warn_impcast_integer_precision_constant : Warning<
3574  "implicit conversion from %2 to %3 changes value from %0 to %1">,
3575  InGroup<ConstantConversion>;
3576def warn_impcast_bitfield_precision_constant : Warning<
3577  "implicit truncation from %2 to bit-field changes value from %0 to %1">,
3578  InGroup<BitFieldConstantConversion>;
3579def warn_impcast_constant_value_to_objc_bool : Warning<
3580  "implicit conversion from constant value %0 to 'BOOL'; "
3581  "the only well defined values for 'BOOL' are YES and NO">,
3582  InGroup<ObjCBoolConstantConversion>;
3583
3584def warn_impcast_fixed_point_range : Warning<
3585  "implicit conversion from %0 cannot fit within the range of values for %1">,
3586  InGroup<ImplicitFixedPointConversion>;
3587
3588def warn_impcast_literal_float_to_integer : Warning<
3589  "implicit conversion from %0 to %1 changes value from %2 to %3">,
3590  InGroup<LiteralConversion>;
3591def warn_impcast_literal_float_to_integer_out_of_range : Warning<
3592  "implicit conversion of out of range value from %0 to %1 is undefined">,
3593  InGroup<LiteralConversion>;
3594def warn_impcast_float_integer : Warning<
3595  "implicit conversion turns floating-point number into integer: %0 to %1">,
3596  InGroup<FloatConversion>, DefaultIgnore;
3597def warn_impcast_float_to_objc_signed_char_bool : Warning<
3598  "implicit conversion from floating-point type %0 to 'BOOL'">,
3599  InGroup<ObjCSignedCharBoolImplicitFloatConversion>;
3600def warn_impcast_int_to_objc_signed_char_bool : Warning<
3601  "implicit conversion from integral type %0 to 'BOOL'">,
3602  InGroup<ObjCSignedCharBoolImplicitIntConversion>, DefaultIgnore;
3603
3604// Implicit int -> float conversion precision loss warnings.
3605def warn_impcast_integer_float_precision : Warning<
3606  "implicit conversion from %0 to %1 may lose precision">,
3607  InGroup<ImplicitIntFloatConversion>, DefaultIgnore;
3608def warn_impcast_integer_float_precision_constant : Warning<
3609  "implicit conversion from %2 to %3 changes value from %0 to %1">,
3610  InGroup<ImplicitConstIntFloatConversion>;
3611
3612def warn_impcast_float_to_integer : Warning<
3613  "implicit conversion from %0 to %1 changes value from %2 to %3">,
3614  InGroup<FloatOverflowConversion>, DefaultIgnore;
3615def warn_impcast_float_to_integer_out_of_range : Warning<
3616  "implicit conversion of out of range value from %0 to %1 is undefined">,
3617  InGroup<FloatOverflowConversion>, DefaultIgnore;
3618def warn_impcast_float_to_integer_zero : Warning<
3619  "implicit conversion from %0 to %1 changes non-zero value from %2 to %3">,
3620  InGroup<FloatZeroConversion>, DefaultIgnore;
3621
3622def warn_impcast_string_literal_to_bool : Warning<
3623  "implicit conversion turns string literal into bool: %0 to %1">,
3624  InGroup<StringConversion>, DefaultIgnore;
3625def warn_impcast_different_enum_types : Warning<
3626  "implicit conversion from enumeration type %0 to different enumeration type "
3627  "%1">, InGroup<EnumConversion>;
3628def warn_impcast_bool_to_null_pointer : Warning<
3629    "initialization of pointer of type %0 to null from a constant boolean "
3630    "expression">, InGroup<BoolConversion>;
3631def warn_non_literal_null_pointer : Warning<
3632    "expression which evaluates to zero treated as a null pointer constant of "
3633    "type %0">, InGroup<NonLiteralNullConversion>;
3634def warn_pointer_compare : Warning<
3635    "comparing a pointer to a null character constant; did you mean "
3636    "to compare to %select{NULL|(void *)0}0?">,
3637    InGroup<DiagGroup<"pointer-compare">>;
3638def warn_impcast_null_pointer_to_integer : Warning<
3639    "implicit conversion of %select{NULL|nullptr}0 constant to %1">,
3640    InGroup<NullConversion>;
3641def warn_impcast_floating_point_to_bool : Warning<
3642    "implicit conversion turns floating-point number into bool: %0 to %1">,
3643    InGroup<ImplicitConversionFloatingPointToBool>;
3644def ext_ms_impcast_fn_obj : ExtWarn<
3645  "implicit conversion between pointer-to-function and pointer-to-object is a "
3646  "Microsoft extension">, InGroup<MicrosoftCast>;
3647
3648def warn_impcast_pointer_to_bool : Warning<
3649    "address of%select{| function| array}0 '%1' will always evaluate to "
3650    "'true'">,
3651    InGroup<PointerBoolConversion>;
3652def warn_cast_nonnull_to_bool : Warning<
3653    "nonnull %select{function call|parameter}0 '%1' will evaluate to "
3654    "'true' on first encounter">,
3655    InGroup<PointerBoolConversion>;
3656def warn_this_bool_conversion : Warning<
3657  "'this' pointer cannot be null in well-defined C++ code; pointer may be "
3658  "assumed to always convert to true">, InGroup<UndefinedBoolConversion>;
3659def warn_address_of_reference_bool_conversion : Warning<
3660  "reference cannot be bound to dereferenced null pointer in well-defined C++ "
3661  "code; pointer may be assumed to always convert to true">,
3662  InGroup<UndefinedBoolConversion>;
3663
3664def warn_xor_used_as_pow : Warning<
3665  "result of '%0' is %1; did you mean exponentiation?">,
3666  InGroup<XorUsedAsPow>;
3667def warn_xor_used_as_pow_base_extra : Warning<
3668  "result of '%0' is %1; did you mean '%2' (%3)?">,
3669  InGroup<XorUsedAsPow>;
3670def warn_xor_used_as_pow_base : Warning<
3671  "result of '%0' is %1; did you mean '%2'?">,
3672  InGroup<XorUsedAsPow>;
3673def note_xor_used_as_pow_silence : Note<
3674  "replace expression with '%0' %select{|or use 'xor' instead of '^' }1to silence this warning">;
3675
3676def warn_null_pointer_compare : Warning<
3677    "comparison of %select{address of|function|array}0 '%1' %select{not |}2"
3678    "equal to a null pointer is always %select{true|false}2">,
3679    InGroup<TautologicalPointerCompare>;
3680def warn_nonnull_expr_compare : Warning<
3681    "comparison of nonnull %select{function call|parameter}0 '%1' "
3682    "%select{not |}2equal to a null pointer is '%select{true|false}2' on first "
3683    "encounter">,
3684    InGroup<TautologicalPointerCompare>;
3685def warn_this_null_compare : Warning<
3686  "'this' pointer cannot be null in well-defined C++ code; comparison may be "
3687  "assumed to always evaluate to %select{true|false}0">,
3688  InGroup<TautologicalUndefinedCompare>;
3689def warn_address_of_reference_null_compare : Warning<
3690  "reference cannot be bound to dereferenced null pointer in well-defined C++ "
3691  "code; comparison may be assumed to always evaluate to "
3692  "%select{true|false}0">,
3693  InGroup<TautologicalUndefinedCompare>;
3694def note_reference_is_return_value : Note<"%0 returns a reference">;
3695
3696def note_pointer_declared_here : Note<
3697  "pointer %0 declared here">;
3698def warn_division_sizeof_ptr : Warning<
3699  "'%0' will return the size of the pointer, not the array itself">,
3700  InGroup<DiagGroup<"sizeof-pointer-div">>;
3701def warn_division_sizeof_array : Warning<
3702  "expression does not compute the number of elements in this array; element "
3703  "type is %0, not %1">,
3704  InGroup<DiagGroup<"sizeof-array-div">>;
3705
3706def note_function_warning_silence : Note<
3707    "prefix with the address-of operator to silence this warning">;
3708def note_function_to_function_call : Note<
3709    "suffix with parentheses to turn this into a function call">;
3710def warn_impcast_objective_c_literal_to_bool : Warning<
3711    "implicit boolean conversion of Objective-C object literal always "
3712    "evaluates to true">,
3713    InGroup<ObjCLiteralConversion>;
3714
3715def warn_cast_align : Warning<
3716  "cast from %0 to %1 increases required alignment from %2 to %3">,
3717  InGroup<CastAlign>, DefaultIgnore;
3718def warn_old_style_cast : Warning<
3719  "use of old-style cast">, InGroup<OldStyleCast>, DefaultIgnore;
3720
3721// Separate between casts to void* and non-void* pointers.
3722// Some APIs use (abuse) void* for something like a user context,
3723// and often that value is an integer even if it isn't a pointer itself.
3724// Having a separate warning flag allows users to control the warning
3725// for their workflow.
3726def warn_int_to_pointer_cast : Warning<
3727  "cast to %1 from smaller integer type %0">,
3728  InGroup<IntToPointerCast>;
3729def warn_int_to_void_pointer_cast : Warning<
3730  "cast to %1 from smaller integer type %0">,
3731  InGroup<IntToVoidPointerCast>;
3732def warn_pointer_to_int_cast : Warning<
3733  "cast to smaller integer type %1 from %0">,
3734  InGroup<PointerToIntCast>;
3735def warn_pointer_to_enum_cast : Warning<
3736  warn_pointer_to_int_cast.Text>,
3737  InGroup<PointerToEnumCast>;
3738def warn_void_pointer_to_int_cast : Warning<
3739  "cast to smaller integer type %1 from %0">,
3740  InGroup<VoidPointerToIntCast>;
3741def warn_void_pointer_to_enum_cast : Warning<
3742  warn_void_pointer_to_int_cast.Text>,
3743  InGroup<VoidPointerToEnumCast>;
3744
3745def warn_attribute_ignored_for_field_of_type : Warning<
3746  "%0 attribute ignored for field of type %1">,
3747  InGroup<IgnoredAttributes>;
3748def warn_no_underlying_type_specified_for_enum_bitfield : Warning<
3749  "enums in the Microsoft ABI are signed integers by default; consider giving "
3750  "the enum %0 an unsigned underlying type to make this code portable">,
3751  InGroup<SignedEnumBitfield>, DefaultIgnore;
3752def warn_attribute_packed_for_bitfield : Warning<
3753  "'packed' attribute was ignored on bit-fields with single-byte alignment "
3754  "in older versions of GCC and Clang">,
3755  InGroup<DiagGroup<"attribute-packed-for-bitfield">>;
3756def warn_transparent_union_attribute_field_size_align : Warning<
3757  "%select{alignment|size}0 of field %1 (%2 bits) does not match the "
3758  "%select{alignment|size}0 of the first field in transparent union; "
3759  "transparent_union attribute ignored">,
3760  InGroup<IgnoredAttributes>;
3761def note_transparent_union_first_field_size_align : Note<
3762  "%select{alignment|size}0 of first field is %1 bits">;
3763def warn_transparent_union_attribute_not_definition : Warning<
3764  "transparent_union attribute can only be applied to a union definition; "
3765  "attribute ignored">,
3766  InGroup<IgnoredAttributes>;
3767def warn_transparent_union_attribute_floating : Warning<
3768  "first field of a transparent union cannot have %select{floating point|"
3769  "vector}0 type %1; transparent_union attribute ignored">,
3770  InGroup<IgnoredAttributes>;
3771def warn_transparent_union_attribute_zero_fields : Warning<
3772  "transparent union definition must contain at least one field; "
3773  "transparent_union attribute ignored">,
3774  InGroup<IgnoredAttributes>;
3775def warn_attribute_type_not_supported : Warning<
3776  "%0 attribute argument not supported: %1">,
3777  InGroup<IgnoredAttributes>;
3778def warn_attribute_unknown_visibility : Warning<"unknown visibility %0">,
3779  InGroup<IgnoredAttributes>;
3780def warn_attribute_protected_visibility :
3781  Warning<"target does not support 'protected' visibility; using 'default'">,
3782  InGroup<DiagGroup<"unsupported-visibility">>;
3783def err_mismatched_visibility: Error<"visibility does not match previous declaration">;
3784def note_previous_attribute : Note<"previous attribute is here">;
3785def note_conflicting_attribute : Note<"conflicting attribute is here">;
3786def note_attribute : Note<"attribute is here">;
3787def err_mismatched_ms_inheritance : Error<
3788  "inheritance model does not match %select{definition|previous declaration}0">;
3789def warn_ignored_ms_inheritance : Warning<
3790  "inheritance model ignored on %select{primary template|partial specialization}0">,
3791  InGroup<IgnoredAttributes>;
3792def note_previous_ms_inheritance : Note<
3793  "previous inheritance model specified here">;
3794def err_machine_mode : Error<"%select{unknown|unsupported}0 machine mode %1">;
3795def err_mode_not_primitive : Error<
3796  "mode attribute only supported for integer and floating-point types">;
3797def err_mode_wrong_type : Error<
3798  "type of machine mode does not match type of base type">;
3799def warn_vector_mode_deprecated : Warning<
3800  "specifying vector types with the 'mode' attribute is deprecated; "
3801  "use the 'vector_size' attribute instead">,
3802  InGroup<DeprecatedAttributes>;
3803def err_complex_mode_vector_type : Error<
3804  "type of machine mode does not support base vector types">;
3805def err_enum_mode_vector_type : Error<
3806  "mode %0 is not supported for enumeration types">;
3807def warn_attribute_nonnull_no_pointers : Warning<
3808  "'nonnull' attribute applied to function with no pointer arguments">,
3809  InGroup<IgnoredAttributes>;
3810def warn_attribute_nonnull_parm_no_args : Warning<
3811  "'nonnull' attribute when used on parameters takes no arguments">,
3812  InGroup<IgnoredAttributes>;
3813def note_declared_nonnull : Note<
3814  "declared %select{'returns_nonnull'|'nonnull'}0 here">;
3815def warn_attribute_sentinel_named_arguments : Warning<
3816  "'sentinel' attribute requires named arguments">,
3817  InGroup<IgnoredAttributes>;
3818def warn_attribute_sentinel_not_variadic : Warning<
3819  "'sentinel' attribute only supported for variadic %select{functions|blocks}0">,
3820  InGroup<IgnoredAttributes>;
3821def err_attribute_sentinel_less_than_zero : Error<
3822  "'sentinel' parameter 1 less than zero">;
3823def err_attribute_sentinel_not_zero_or_one : Error<
3824  "'sentinel' parameter 2 not 0 or 1">;
3825def warn_cleanup_ext : Warning<
3826  "GCC does not allow the 'cleanup' attribute argument to be anything other "
3827  "than a simple identifier">,
3828  InGroup<GccCompat>;
3829def err_attribute_cleanup_arg_not_function : Error<
3830  "'cleanup' argument %select{|%1 |%1 }0is not a %select{||single }0function">;
3831def err_attribute_cleanup_func_must_take_one_arg : Error<
3832  "'cleanup' function %0 must take 1 parameter">;
3833def err_attribute_cleanup_func_arg_incompatible_type : Error<
3834  "'cleanup' function %0 parameter has "
3835  "%diff{type $ which is incompatible with type $|incompatible type}1,2">;
3836def err_attribute_regparm_wrong_platform : Error<
3837  "'regparm' is not valid on this platform">;
3838def err_attribute_regparm_invalid_number : Error<
3839  "'regparm' parameter must be between 0 and %0 inclusive">;
3840def err_attribute_not_supported_in_lang : Error<
3841  "%0 attribute is not supported in %select{C|C++|Objective-C}1">;
3842def err_attribute_not_supported_on_arch
3843    : Error<"%0 attribute is not supported on '%1'">;
3844def warn_gcc_ignores_type_attr : Warning<
3845  "GCC does not allow the %0 attribute to be written on a type">,
3846  InGroup<GccCompat>;
3847
3848// Clang-Specific Attributes
3849def warn_attribute_iboutlet : Warning<
3850  "%0 attribute can only be applied to instance variables or properties">,
3851  InGroup<IgnoredAttributes>;
3852def err_iboutletcollection_type : Error<
3853  "invalid type %0 as argument of iboutletcollection attribute">;
3854def err_iboutletcollection_builtintype : Error<
3855  "type argument of iboutletcollection attribute cannot be a builtin type">;
3856def warn_iboutlet_object_type : Warning<
3857  "%select{instance variable|property}2 with %0 attribute must "
3858  "be an object type (invalid %1)">, InGroup<ObjCInvalidIBOutletProperty>;
3859def warn_iboutletcollection_property_assign : Warning<
3860  "IBOutletCollection properties should be copy/strong and not assign">,
3861  InGroup<ObjCInvalidIBOutletProperty>;
3862
3863def err_attribute_overloadable_mismatch : Error<
3864  "redeclaration of %0 must %select{not |}1have the 'overloadable' attribute">;
3865def note_attribute_overloadable_prev_overload : Note<
3866  "previous %select{unmarked |}0overload of function is here">;
3867def err_attribute_overloadable_no_prototype : Error<
3868  "'overloadable' function %0 must have a prototype">;
3869def err_attribute_overloadable_multiple_unmarked_overloads : Error<
3870  "at most one overload for a given name may lack the 'overloadable' "
3871  "attribute">;
3872def warn_attribute_no_builtin_invalid_builtin_name : Warning<
3873  "'%0' is not a valid builtin name for %1">,
3874  InGroup<DiagGroup<"invalid-no-builtin-names">>;
3875def err_attribute_no_builtin_wildcard_or_builtin_name : Error<
3876  "empty %0 cannot be composed with named ones">;
3877def err_attribute_no_builtin_on_non_definition : Error<
3878  "%0 attribute is permitted on definitions only">;
3879def err_attribute_no_builtin_on_defaulted_deleted_function : Error<
3880  "%0 attribute has no effect on defaulted or deleted functions">;
3881def warn_ns_attribute_wrong_return_type : Warning<
3882  "%0 attribute only applies to %select{functions|methods|properties}1 that "
3883  "return %select{an Objective-C object|a pointer|a non-retainable pointer}2">,
3884  InGroup<IgnoredAttributes>;
3885def err_ns_attribute_wrong_parameter_type : Error<
3886  "%0 attribute only applies to "
3887  "%select{Objective-C object|pointer|pointer-to-CF-pointer}1 parameters">;
3888def warn_ns_attribute_wrong_parameter_type : Warning<
3889  "%0 attribute only applies to "
3890  "%select{Objective-C object|pointer|pointer-to-CF-pointer|pointer/reference-to-OSObject-pointer}1 parameters">,
3891  InGroup<IgnoredAttributes>;
3892def warn_objc_requires_super_protocol : Warning<
3893  "%0 attribute cannot be applied to %select{methods in protocols|dealloc}1">,
3894  InGroup<DiagGroup<"requires-super-attribute">>;
3895def note_protocol_decl : Note<
3896  "protocol is declared here">;
3897def note_protocol_decl_undefined : Note<
3898  "protocol %0 has no definition">;
3899
3900// objc_designated_initializer attribute diagnostics.
3901def warn_objc_designated_init_missing_super_call : Warning<
3902  "designated initializer missing a 'super' call to a designated initializer of the super class">,
3903  InGroup<ObjCDesignatedInit>;
3904def note_objc_designated_init_marked_here : Note<
3905  "method marked as designated initializer of the class here">;
3906def warn_objc_designated_init_non_super_designated_init_call : Warning<
3907  "designated initializer should only invoke a designated initializer on 'super'">,
3908  InGroup<ObjCDesignatedInit>;
3909def warn_objc_designated_init_non_designated_init_call : Warning<
3910  "designated initializer invoked a non-designated initializer">,
3911  InGroup<ObjCDesignatedInit>;
3912def warn_objc_secondary_init_super_init_call : Warning<
3913  "convenience initializer should not invoke an initializer on 'super'">,
3914  InGroup<ObjCDesignatedInit>;
3915def warn_objc_secondary_init_missing_init_call : Warning<
3916  "convenience initializer missing a 'self' call to another initializer">,
3917  InGroup<ObjCDesignatedInit>;
3918def warn_objc_implementation_missing_designated_init_override : Warning<
3919  "method override for the designated initializer of the superclass %objcinstance0 not found">,
3920  InGroup<ObjCDesignatedInit>;
3921def err_designated_init_attr_non_init : Error<
3922  "'objc_designated_initializer' attribute only applies to init methods "
3923  "of interface or class extension declarations">;
3924
3925// objc_bridge attribute diagnostics.
3926def err_objc_attr_not_id : Error<
3927  "parameter of %0 attribute must be a single name of an Objective-C %select{class|protocol}1">;
3928def err_objc_attr_typedef_not_id : Error<
3929  "parameter of %0 attribute must be 'id' when used on a typedef">;
3930def err_objc_attr_typedef_not_void_pointer : Error<
3931  "'objc_bridge(id)' is only allowed on structs and typedefs of void pointers">;
3932def err_objc_cf_bridged_not_interface : Error<
3933  "CF object of type %0 is bridged to %1, which is not an Objective-C class">;
3934def err_objc_ns_bridged_invalid_cfobject : Error<
3935  "ObjectiveC object of type %0 is bridged to %1, which is not valid CF object">;
3936def warn_objc_invalid_bridge : Warning<
3937  "%0 bridges to %1, not %2">, InGroup<ObjCBridge>;
3938def warn_objc_invalid_bridge_to_cf : Warning<
3939  "%0 cannot bridge to %1">, InGroup<ObjCBridge>;
3940
3941// objc_bridge_related attribute diagnostics.
3942def err_objc_bridged_related_invalid_class : Error<
3943  "could not find Objective-C class %0 to convert %1 to %2">;
3944def err_objc_bridged_related_invalid_class_name : Error<
3945  "%0 must be name of an Objective-C class to be able to convert %1 to %2">;
3946def err_objc_bridged_related_known_method : Error<
3947 "%0 must be explicitly converted to %1; use %select{%objcclass2|%objcinstance2}3 "
3948 "method for this conversion">;
3949
3950def err_objc_attr_protocol_requires_definition : Error<
3951  "attribute %0 can only be applied to @protocol definitions, not forward declarations">;
3952
3953def warn_ignored_objc_externally_retained : Warning<
3954  "'objc_externally_retained' can only be applied to local variables "
3955  "%select{of retainable type|with strong ownership}0">,
3956  InGroup<IgnoredAttributes>;
3957
3958// Function Parameter Semantic Analysis.
3959def err_param_with_void_type : Error<"argument may not have 'void' type">;
3960def err_void_only_param : Error<
3961  "'void' must be the first and only parameter if specified">;
3962def err_void_param_qualified : Error<
3963  "'void' as parameter must not have type qualifiers">;
3964def err_ident_list_in_fn_declaration : Error<
3965  "a parameter list without types is only allowed in a function definition">;
3966def ext_param_not_declared : Extension<
3967  "parameter %0 was not declared, defaulting to type 'int'">;
3968def err_param_default_argument : Error<
3969  "C does not support default arguments">;
3970def err_param_default_argument_redefinition : Error<
3971  "redefinition of default argument">;
3972def ext_param_default_argument_redefinition : ExtWarn<
3973  err_param_default_argument_redefinition.Text>,
3974  InGroup<MicrosoftDefaultArgRedefinition>;
3975def err_param_default_argument_missing : Error<
3976  "missing default argument on parameter">;
3977def err_param_default_argument_missing_name : Error<
3978  "missing default argument on parameter %0">;
3979def err_param_default_argument_references_param : Error<
3980  "default argument references parameter %0">;
3981def err_param_default_argument_references_local : Error<
3982  "default argument references local variable %0 of enclosing function">;
3983def err_param_default_argument_references_this : Error<
3984  "default argument references 'this'">;
3985def err_param_default_argument_nonfunc : Error<
3986  "default arguments can only be specified for parameters in a function "
3987  "declaration">;
3988def err_param_default_argument_template_redecl : Error<
3989  "default arguments cannot be added to a function template that has already "
3990  "been declared">;
3991def err_param_default_argument_member_template_redecl : Error<
3992  "default arguments cannot be added to an out-of-line definition of a member "
3993  "of a %select{class template|class template partial specialization|nested "
3994  "class in a template}0">;
3995def err_param_default_argument_on_parameter_pack : Error<
3996  "parameter pack cannot have a default argument">;
3997def err_uninitialized_member_for_assign : Error<
3998  "cannot define the implicit copy assignment operator for %0, because "
3999  "non-static %select{reference|const}1 member %2 cannot use copy "
4000  "assignment operator">;
4001def err_uninitialized_member_in_ctor : Error<
4002  "%select{constructor for %1|"
4003  "implicit default constructor for %1|"
4004  "cannot use constructor inherited from %1:}0 must explicitly "
4005  "initialize the %select{reference|const}2 member %3">;
4006def err_default_arg_makes_ctor_special : Error<
4007  "addition of default argument on redeclaration makes this constructor a "
4008  "%select{default|copy|move}0 constructor">;
4009
4010def err_use_of_default_argument_to_function_declared_later : Error<
4011  "use of default argument to function %0 that is declared later in class %1">;
4012def note_default_argument_declared_here : Note<
4013  "default argument declared here">;
4014def err_recursive_default_argument : Error<"recursive evaluation of default argument">;
4015def note_recursive_default_argument_used_here : Note<
4016  "default argument used here">;
4017
4018def ext_param_promoted_not_compatible_with_prototype : ExtWarn<
4019  "%diff{promoted type $ of K&R function parameter is not compatible with the "
4020  "parameter type $|promoted type of K&R function parameter is not compatible "
4021  "with parameter type}0,1 declared in a previous prototype">,
4022  InGroup<KNRPromotedParameter>;
4023
4024
4025// C++ Overloading Semantic Analysis.
4026def err_ovl_diff_return_type : Error<
4027  "functions that differ only in their return type cannot be overloaded">;
4028def err_ovl_static_nonstatic_member : Error<
4029  "static and non-static member functions with the same parameter types "
4030  "cannot be overloaded">;
4031
4032def err_ovl_no_viable_function_in_call : Error<
4033  "no matching function for call to %0">;
4034def err_ovl_no_viable_member_function_in_call : Error<
4035  "no matching member function for call to %0">;
4036def err_ovl_ambiguous_call : Error<
4037  "call to %0 is ambiguous">;
4038def err_ovl_deleted_call : Error<"call to deleted function %0">;
4039def err_ovl_ambiguous_member_call : Error<
4040  "call to member function %0 is ambiguous">;
4041def err_ovl_deleted_member_call : Error<
4042  "call to deleted member function %0">;
4043def note_ovl_too_many_candidates : Note<
4044    "remaining %0 candidate%s0 omitted; "
4045    "pass -fshow-overloads=all to show them">;
4046
4047def select_ovl_candidate_kind : TextSubstitution<
4048  "%select{function|function|function (with reversed parameter order)|"
4049    "constructor|"
4050    "constructor (the implicit default constructor)|"
4051    "constructor (the implicit copy constructor)|"
4052    "constructor (the implicit move constructor)|"
4053    "function (the implicit copy assignment operator)|"
4054    "function (the implicit move assignment operator)|"
4055    "function (the implicit 'operator==' for this 'operator<=>)'|"
4056    "inherited constructor}0%select{| template| %2}1">;
4057
4058def note_ovl_candidate : Note<
4059    "candidate %sub{select_ovl_candidate_kind}0,1,3"
4060    "%select{| has different class%diff{ (expected $ but has $)|}5,6"
4061    "| has different number of parameters (expected %5 but has %6)"
4062    "| has type mismatch at %ordinal5 parameter"
4063    "%diff{ (expected $ but has $)|}6,7"
4064    "| has different return type%diff{ ($ expected but has $)|}5,6"
4065    "| has different qualifiers (expected %5 but found %6)"
4066    "| has different exception specification}4">;
4067
4068def note_ovl_candidate_explicit : Note<
4069    "explicit %select{constructor|conversion function|deduction guide}0 "
4070    "is not a candidate%select{| (explicit specifier evaluates to true)}1">;
4071def note_ovl_candidate_inherited_constructor : Note<
4072    "constructor from base class %0 inherited here">;
4073def note_ovl_candidate_inherited_constructor_slice : Note<
4074    "candidate %select{constructor|template}0 ignored: "
4075    "inherited constructor cannot be used to %select{copy|move}1 object">;
4076def note_ovl_candidate_illegal_constructor : Note<
4077    "candidate %select{constructor|template}0 ignored: "
4078    "instantiation %select{takes|would take}0 its own class type by value">;
4079def note_ovl_candidate_illegal_constructor_adrspace_mismatch : Note<
4080    "candidate constructor ignored: cannot be used to construct an object "
4081    "in address space %0">;
4082def note_ovl_candidate_bad_deduction : Note<
4083    "candidate template ignored: failed template argument deduction">;
4084def note_ovl_candidate_incomplete_deduction : Note<"candidate template ignored: "
4085    "couldn't infer template argument %0">;
4086def note_ovl_candidate_incomplete_deduction_pack : Note<
4087    "candidate template ignored: "
4088    "deduced too few arguments for expanded pack %0; no argument for %ordinal1 "
4089    "expanded parameter in deduced argument pack %2">;
4090def note_ovl_candidate_inconsistent_deduction : Note<
4091    "candidate template ignored: deduced %select{conflicting types|"
4092    "conflicting values|conflicting templates|packs of different lengths}0 "
4093    "for parameter %1%diff{ ($ vs. $)|}2,3">;
4094def note_ovl_candidate_inconsistent_deduction_types : Note<
4095    "candidate template ignored: deduced values %diff{"
4096    "of conflicting types for parameter %0 (%1 of type $ vs. %3 of type $)|"
4097    "%1 and %3 of conflicting types for parameter %0}2,4">;
4098def note_ovl_candidate_explicit_arg_mismatch_named : Note<
4099    "candidate template ignored: invalid explicitly-specified argument "
4100    "for template parameter %0">;
4101def note_ovl_candidate_unsatisfied_constraints : Note<
4102    "candidate template ignored: constraints not satisfied%0">;
4103def note_ovl_candidate_explicit_arg_mismatch_unnamed : Note<
4104    "candidate template ignored: invalid explicitly-specified argument "
4105    "for %ordinal0 template parameter">;
4106def note_ovl_candidate_instantiation_depth : Note<
4107    "candidate template ignored: substitution exceeded maximum template "
4108    "instantiation depth">;
4109def note_ovl_candidate_underqualified : Note<
4110    "candidate template ignored: cannot deduce a type for %0 that would "
4111    "make %2 equal %1">;
4112def note_ovl_candidate_substitution_failure : Note<
4113    "candidate template ignored: substitution failure%0%1">;
4114def note_ovl_candidate_disabled_by_enable_if : Note<
4115    "candidate template ignored: disabled by %0%1">;
4116def note_ovl_candidate_disabled_by_requirement : Note<
4117    "candidate template ignored: requirement '%0' was not satisfied%1">;
4118def note_ovl_candidate_has_pass_object_size_params: Note<
4119    "candidate address cannot be taken because parameter %0 has "
4120    "pass_object_size attribute">;
4121def err_diagnose_if_succeeded : Error<"%0">;
4122def warn_diagnose_if_succeeded : Warning<"%0">, InGroup<UserDefinedWarnings>,
4123    ShowInSystemHeader;
4124def note_ovl_candidate_disabled_by_function_cond_attr : Note<
4125    "candidate disabled: %0">;
4126def note_ovl_candidate_disabled_by_extension : Note<
4127    "candidate unavailable as it requires OpenCL extension '%0' to be enabled">;
4128def err_addrof_function_disabled_by_enable_if_attr : Error<
4129    "cannot take address of function %0 because it has one or more "
4130    "non-tautological enable_if conditions">;
4131def err_addrof_function_constraints_not_satisfied : Error<
4132    "cannot take address of function %0 because its constraints are not "
4133    "satisfied">;
4134def note_addrof_ovl_candidate_disabled_by_enable_if_attr : Note<
4135    "candidate function made ineligible by enable_if">;
4136def note_ovl_candidate_deduced_mismatch : Note<
4137    "candidate template ignored: deduced type "
4138    "%diff{$ of %select{|element of }4%ordinal0 parameter does not match "
4139    "adjusted type $ of %select{|element of }4argument"
4140    "|of %select{|element of }4%ordinal0 parameter does not match "
4141    "adjusted type of %select{|element of }4argument}1,2%3">;
4142def note_ovl_candidate_non_deduced_mismatch : Note<
4143    "candidate template ignored: could not match %diff{$ against $|types}0,1">;
4144// This note is needed because the above note would sometimes print two
4145// different types with the same name.  Remove this note when the above note
4146// can handle that case properly.
4147def note_ovl_candidate_non_deduced_mismatch_qualified : Note<
4148    "candidate template ignored: could not match %q0 against %q1">;
4149
4150// Note that we don't treat templates differently for this diagnostic.
4151def note_ovl_candidate_arity : Note<"candidate "
4152    "%sub{select_ovl_candidate_kind}0,1,2 not viable: "
4153    "requires%select{ at least| at most|}3 %4 argument%s4, but %5 "
4154    "%plural{1:was|:were}5 provided">;
4155
4156def note_ovl_candidate_arity_one : Note<"candidate "
4157    "%sub{select_ovl_candidate_kind}0,1,2 not viable: "
4158    "%select{requires at least|allows at most single|requires single}3 "
4159    "argument %4, but %plural{0:no|:%5}5 arguments were provided">;
4160
4161def note_ovl_candidate_deleted : Note<
4162    "candidate %sub{select_ovl_candidate_kind}0,1,2 has been "
4163    "%select{explicitly made unavailable|explicitly deleted|"
4164    "implicitly deleted}3">;
4165
4166// Giving the index of the bad argument really clutters this message, and
4167// it's relatively unimportant because 1) it's generally obvious which
4168// argument(s) are of the given object type and 2) the fix is usually
4169// to complete the type, which doesn't involve changes to the call line
4170// anyway.  If people complain, we can change it.
4171def note_ovl_candidate_bad_conv_incomplete : Note<
4172    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
4173    "cannot convert argument of incomplete type "
4174    "%diff{$ to $|to parameter type}3,4 for "
4175    "%select{%ordinal6 argument|object argument}5"
4176    "%select{|; dereference the argument with *|"
4177    "; take the address of the argument with &|"
4178    "; remove *|"
4179    "; remove &}7">;
4180def note_ovl_candidate_bad_list_argument : Note<
4181    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
4182    "cannot convert initializer list argument to %4">;
4183def note_ovl_candidate_bad_overload : Note<
4184    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
4185    "no overload of %4 matching %3 for %ordinal5 argument">;
4186def note_ovl_candidate_bad_conv : Note<
4187    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
4188    "no known conversion "
4189    "%diff{from $ to $|from argument type to parameter type}3,4 for "
4190    "%select{%ordinal6 argument|object argument}5"
4191    "%select{|; dereference the argument with *|"
4192    "; take the address of the argument with &|"
4193    "; remove *|"
4194    "; remove &}7">;
4195def note_ovl_candidate_bad_arc_conv : Note<
4196    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
4197    "cannot implicitly convert argument "
4198    "%diff{of type $ to $|type to parameter type}3,4 for "
4199    "%select{%ordinal6 argument|object argument}5 under ARC">;
4200def note_ovl_candidate_bad_lvalue : Note<
4201    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
4202    "expects an l-value for "
4203    "%select{%ordinal4 argument|object argument}3">;
4204def note_ovl_candidate_bad_addrspace : Note<
4205    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
4206    "cannot %select{pass pointer to|bind reference in}5 %3 "
4207    "%select{as a pointer to|to object in}5 %4 in %ordinal6 "
4208    "argument">;
4209def note_ovl_candidate_bad_addrspace_this : Note<
4210    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
4211    "'this' object is in %3, but method expects object in %4">;
4212def note_ovl_candidate_bad_gc : Note<
4213    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
4214    "%select{%ordinal7|'this'}6 argument (%3) has %select{no|__weak|__strong}4 "
4215    "ownership, but parameter has %select{no|__weak|__strong}5 ownership">;
4216def note_ovl_candidate_bad_ownership : Note<
4217    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
4218    "%select{%ordinal7|'this'}6 argument (%3) has "
4219    "%select{no|__unsafe_unretained|__strong|__weak|__autoreleasing}4 ownership,"
4220    " but parameter has %select{no|__unsafe_unretained|__strong|__weak|"
4221    "__autoreleasing}5 ownership">;
4222def note_ovl_candidate_bad_cvr_this : Note<
4223    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
4224    "'this' argument has type %3, but method is not marked "
4225    "%select{const|restrict|const or restrict|volatile|const or volatile|"
4226    "volatile or restrict|const, volatile, or restrict}4">;
4227def note_ovl_candidate_bad_cvr : Note<
4228    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
4229    "%ordinal5 argument (%3) would lose "
4230    "%select{const|restrict|const and restrict|volatile|const and volatile|"
4231    "volatile and restrict|const, volatile, and restrict}4 qualifier"
4232    "%select{||s||s|s|s}4">;
4233def note_ovl_candidate_bad_unaligned : Note<
4234    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
4235    "%ordinal5 argument (%3) would lose __unaligned qualifier">;
4236def note_ovl_candidate_bad_base_to_derived_conv : Note<
4237    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
4238    "cannot %select{convert from|convert from|bind}3 "
4239    "%select{base class pointer|superclass|base class object of type}3 %4 to "
4240    "%select{derived class pointer|subclass|derived class reference}3 %5 for "
4241    "%ordinal6 argument">;
4242def note_ovl_candidate_bad_target : Note<
4243    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: "
4244    "call to "
4245    "%select{__device__|__global__|__host__|__host__ __device__|invalid}3 function from"
4246    " %select{__device__|__global__|__host__|__host__ __device__|invalid}4 function">;
4247def note_ovl_candidate_constraints_not_satisfied : Note<
4248    "candidate %sub{select_ovl_candidate_kind}0,1,2 not viable: constraints "
4249    "not satisfied">;
4250def note_implicit_member_target_infer_collision : Note<
4251    "implicit %sub{select_special_member_kind}0 inferred target collision: call to both "
4252    "%select{__device__|__global__|__host__|__host__ __device__}1 and "
4253    "%select{__device__|__global__|__host__|__host__ __device__}2 members">;
4254
4255def note_ambiguous_type_conversion: Note<
4256    "because of ambiguity in conversion %diff{of $ to $|between types}0,1">;
4257def note_ovl_builtin_candidate : Note<"built-in candidate %0">;
4258def err_ovl_no_viable_function_in_init : Error<
4259  "no matching constructor for initialization of %0">;
4260def err_ovl_no_conversion_in_cast : Error<
4261  "cannot convert %1 to %2 without a conversion operator">;
4262def err_ovl_no_viable_conversion_in_cast : Error<
4263  "no matching conversion for %select{|static_cast|reinterpret_cast|"
4264  "dynamic_cast|C-style cast|functional-style cast|}0 from %1 to %2">;
4265def err_ovl_ambiguous_conversion_in_cast : Error<
4266  "ambiguous conversion for %select{|static_cast|reinterpret_cast|"
4267  "dynamic_cast|C-style cast|functional-style cast|}0 from %1 to %2">;
4268def err_ovl_deleted_conversion_in_cast : Error<
4269  "%select{|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
4270  "functional-style cast|}0 from %1 to %2 uses deleted function">;
4271def err_ovl_ambiguous_init : Error<"call to constructor of %0 is ambiguous">;
4272def err_ref_init_ambiguous : Error<
4273  "reference initialization of type %0 with initializer of type %1 is ambiguous">;
4274def err_ovl_deleted_init : Error<
4275  "call to deleted constructor of %0">;
4276def err_ovl_deleted_special_init : Error<
4277  "call to implicitly-deleted %select{default constructor|copy constructor|"
4278  "move constructor|copy assignment operator|move assignment operator|"
4279  "destructor|function}0 of %1">;
4280def err_ovl_ambiguous_oper_unary : Error<
4281  "use of overloaded operator '%0' is ambiguous (operand type %1)">;
4282def err_ovl_ambiguous_oper_binary : Error<
4283  "use of overloaded operator '%0' is ambiguous (with operand types %1 and %2)">;
4284def ext_ovl_ambiguous_oper_binary_reversed : ExtWarn<
4285  "ISO C++20 considers use of overloaded operator '%0' (with operand types %1 "
4286  "and %2) to be ambiguous despite there being a unique best viable function"
4287  "%select{ with non-reversed arguments|}3">,
4288  InGroup<DiagGroup<"ambiguous-reversed-operator">>, SFINAEFailure;
4289def note_ovl_ambiguous_oper_binary_reversed_self : Note<
4290  "ambiguity is between a regular call to this operator and a call with the "
4291  "argument order reversed">;
4292def note_ovl_ambiguous_oper_binary_selected_candidate : Note<
4293  "candidate function with non-reversed arguments">;
4294def note_ovl_ambiguous_oper_binary_reversed_candidate : Note<
4295  "ambiguous candidate function with reversed arguments">;
4296def err_ovl_no_viable_oper : Error<"no viable overloaded '%0'">;
4297def note_assign_lhs_incomplete : Note<"type %0 is incomplete">;
4298def err_ovl_deleted_oper : Error<
4299  "overload resolution selected deleted operator '%0'">;
4300def err_ovl_deleted_special_oper : Error<
4301  "object of type %0 cannot be %select{constructed|copied|moved|assigned|"
4302  "assigned|destroyed}1 because its %sub{select_special_member_kind}1 is "
4303  "implicitly deleted">;
4304def err_ovl_deleted_comparison : Error<
4305  "object of type %0 cannot be compared because its %1 is implicitly deleted">;
4306def err_ovl_rewrite_equalequal_not_bool : Error<
4307  "return type %0 of selected 'operator==' function for rewritten "
4308  "'%1' comparison is not 'bool'">;
4309def ext_ovl_rewrite_equalequal_not_bool : ExtWarn<
4310  "ISO C++20 requires return type of selected 'operator==' function for "
4311  "rewritten '%1' comparison to be 'bool', not %0">,
4312  InGroup<DiagGroup<"rewrite-not-bool">>, SFINAEFailure;
4313def err_ovl_no_viable_subscript :
4314    Error<"no viable overloaded operator[] for type %0">;
4315def err_ovl_no_oper :
4316    Error<"type %0 does not provide a %select{subscript|call}1 operator">;
4317def err_ovl_unresolvable : Error<
4318  "reference to %select{overloaded|multiversioned}1 function could not be "
4319  "resolved; did you mean to call it%select{| with no arguments}0?">;
4320def err_bound_member_function : Error<
4321  "reference to non-static member function must be called"
4322  "%select{|; did you mean to call it with no arguments?}0">;
4323def note_possible_target_of_call : Note<"possible target for call">;
4324
4325def err_ovl_no_viable_object_call : Error<
4326  "no matching function for call to object of type %0">;
4327def err_ovl_ambiguous_object_call : Error<
4328  "call to object of type %0 is ambiguous">;
4329def err_ovl_deleted_object_call : Error<
4330  "call to deleted function call operator in type %0">;
4331def note_ovl_surrogate_cand : Note<"conversion candidate of type %0">;
4332def err_member_call_without_object : Error<
4333  "call to non-static member function without an object argument">;
4334
4335// C++ Address of Overloaded Function
4336def err_addr_ovl_no_viable : Error<
4337  "address of overloaded function %0 does not match required type %1">;
4338def err_addr_ovl_ambiguous : Error<
4339  "address of overloaded function %0 is ambiguous">;
4340def err_addr_ovl_not_func_ptrref : Error<
4341  "address of overloaded function %0 cannot be converted to type %1">;
4342def err_addr_ovl_no_qualifier : Error<
4343  "cannot form member pointer of type %0 without '&' and class name">;
4344
4345// C++11 Literal Operators
4346def err_ovl_no_viable_literal_operator : Error<
4347  "no matching literal operator for call to %0"
4348  "%select{| with argument of type %2| with arguments of types %2 and %3}1"
4349  "%select{| or 'const char *'}4"
4350  "%select{|, and no matching literal operator template}5">;
4351
4352// C++ Template Declarations
4353def err_template_param_shadow : Error<
4354  "declaration of %0 shadows template parameter">;
4355def ext_template_param_shadow : ExtWarn<
4356  err_template_param_shadow.Text>, InGroup<MicrosoftTemplateShadow>;
4357def note_template_param_here : Note<"template parameter is declared here">;
4358def warn_template_export_unsupported : Warning<
4359  "exported templates are unsupported">;
4360def err_template_outside_namespace_or_class_scope : Error<
4361  "templates can only be declared in namespace or class scope">;
4362def err_template_inside_local_class : Error<
4363  "templates cannot be declared inside of a local class">;
4364def err_template_linkage : Error<"templates must have C++ linkage">;
4365def err_template_typedef : Error<"a typedef cannot be a template">;
4366def err_template_unnamed_class : Error<
4367  "cannot declare a class template with no name">;
4368def err_template_param_list_different_arity : Error<
4369  "%select{too few|too many}0 template parameters in template "
4370  "%select{|template parameter }1redeclaration">;
4371def note_template_param_list_different_arity : Note<
4372  "%select{too few|too many}0 template parameters in template template "
4373  "argument">;
4374def note_template_prev_declaration : Note<
4375  "previous template %select{declaration|template parameter}0 is here">;
4376def err_template_param_different_kind : Error<
4377  "template parameter has a different kind in template "
4378  "%select{|template parameter }0redeclaration">;
4379def note_template_param_different_kind : Note<
4380  "template parameter has a different kind in template argument">;
4381
4382def err_invalid_decl_specifier_in_nontype_parm : Error<
4383  "invalid declaration specifier in template non-type parameter">;
4384
4385def err_template_nontype_parm_different_type : Error<
4386  "template non-type parameter has a different type %0 in template "
4387  "%select{|template parameter }1redeclaration">;
4388
4389def note_template_nontype_parm_different_type : Note<
4390  "template non-type parameter has a different type %0 in template argument">;
4391def note_template_nontype_parm_prev_declaration : Note<
4392  "previous non-type template parameter with type %0 is here">;
4393def err_template_nontype_parm_bad_type : Error<
4394  "a non-type template parameter cannot have type %0">;
4395def warn_cxx14_compat_template_nontype_parm_auto_type : Warning<
4396  "non-type template parameters declared with %0 are incompatible with C++ "
4397  "standards before C++17">,
4398  DefaultIgnore, InGroup<CXXPre17Compat>;
4399def err_template_param_default_arg_redefinition : Error<
4400  "template parameter redefines default argument">;
4401def note_template_param_prev_default_arg : Note<
4402  "previous default template argument defined here">;
4403def err_template_param_default_arg_missing : Error<
4404  "template parameter missing a default argument">;
4405def ext_template_parameter_default_in_function_template : ExtWarn<
4406  "default template arguments for a function template are a C++11 extension">,
4407  InGroup<CXX11>;
4408def warn_cxx98_compat_template_parameter_default_in_function_template : Warning<
4409  "default template arguments for a function template are incompatible with C++98">,
4410  InGroup<CXX98Compat>, DefaultIgnore;
4411def err_template_parameter_default_template_member : Error<
4412  "cannot add a default template argument to the definition of a member of a "
4413  "class template">;
4414def err_template_parameter_default_friend_template : Error<
4415  "default template argument not permitted on a friend template">;
4416def err_template_template_parm_no_parms : Error<
4417  "template template parameter must have its own template parameters">;
4418
4419def ext_variable_template : ExtWarn<"variable templates are a C++14 extension">,
4420  InGroup<CXX14>;
4421def warn_cxx11_compat_variable_template : Warning<
4422  "variable templates are incompatible with C++ standards before C++14">,
4423  InGroup<CXXPre14Compat>, DefaultIgnore;
4424def err_template_variable_noparams : Error<
4425  "extraneous 'template<>' in declaration of variable %0">;
4426def err_template_member : Error<"member %0 declared as a template">;
4427def err_template_member_noparams : Error<
4428  "extraneous 'template<>' in declaration of member %0">;
4429def err_template_tag_noparams : Error<
4430  "extraneous 'template<>' in declaration of %0 %1">;
4431
4432def warn_cxx17_compat_adl_only_template_id : Warning<
4433  "use of function template name with no prior function template "
4434  "declaration in function call with explicit template arguments "
4435  "is incompatible with C++ standards before C++20">,
4436  InGroup<CXXPre20Compat>, DefaultIgnore;
4437def ext_adl_only_template_id : ExtWarn<
4438  "use of function template name with no prior declaration in function call "
4439  "with explicit template arguments is a C++20 extension">, InGroup<CXX20>;
4440
4441// C++ Template Argument Lists
4442def err_template_missing_args : Error<
4443  "use of "
4444  "%select{class template|function template|variable template|alias template|"
4445  "template template parameter|concept|template}0 %1 requires template "
4446  "arguments">;
4447def err_template_arg_list_different_arity : Error<
4448  "%select{too few|too many}0 template arguments for "
4449  "%select{class template|function template|variable template|alias template|"
4450  "template template parameter|concept|template}1 %2">;
4451def note_template_decl_here : Note<"template is declared here">;
4452def err_template_arg_must_be_type : Error<
4453  "template argument for template type parameter must be a type">;
4454def err_template_arg_must_be_type_suggest : Error<
4455  "template argument for template type parameter must be a type; "
4456  "did you forget 'typename'?">;
4457def ext_ms_template_type_arg_missing_typename : ExtWarn<
4458  "template argument for template type parameter must be a type; "
4459  "omitted 'typename' is a Microsoft extension">,
4460  InGroup<MicrosoftTemplate>;
4461def err_template_arg_must_be_expr : Error<
4462  "template argument for non-type template parameter must be an expression">;
4463def err_template_arg_nontype_ambig : Error<
4464  "template argument for non-type template parameter is treated as function type %0">;
4465def err_template_arg_must_be_template : Error<
4466  "template argument for template template parameter must be a class template%select{| or type alias template}0">;
4467def ext_template_arg_local_type : ExtWarn<
4468  "template argument uses local type %0">, InGroup<LocalTypeTemplateArgs>;
4469def ext_template_arg_unnamed_type : ExtWarn<
4470  "template argument uses unnamed type">, InGroup<UnnamedTypeTemplateArgs>;
4471def warn_cxx98_compat_template_arg_local_type : Warning<
4472  "local type %0 as template argument is incompatible with C++98">,
4473  InGroup<CXX98CompatLocalTypeTemplateArgs>, DefaultIgnore;
4474def warn_cxx98_compat_template_arg_unnamed_type : Warning<
4475  "unnamed type as template argument is incompatible with C++98">,
4476  InGroup<CXX98CompatUnnamedTypeTemplateArgs>, DefaultIgnore;
4477def note_template_unnamed_type_here : Note<
4478  "unnamed type used in template argument was declared here">;
4479def err_template_arg_overload_type : Error<
4480  "template argument is the type of an unresolved overloaded function">;
4481def err_template_arg_not_valid_template : Error<
4482  "template argument does not refer to a class or alias template, or template "
4483  "template parameter">;
4484def note_template_arg_refers_here_func : Note<
4485  "template argument refers to function template %0, here">;
4486def err_template_arg_template_params_mismatch : Error<
4487  "template template argument has different template parameters than its "
4488  "corresponding template template parameter">;
4489def err_template_arg_not_integral_or_enumeral : Error<
4490  "non-type template argument of type %0 must have an integral or enumeration"
4491  " type">;
4492def err_template_arg_not_ice : Error<
4493  "non-type template argument of type %0 is not an integral constant "
4494  "expression">;
4495def err_template_arg_not_address_constant : Error<
4496  "non-type template argument of type %0 is not a constant expression">;
4497def warn_cxx98_compat_template_arg_null : Warning<
4498  "use of null pointer as non-type template argument is incompatible with "
4499  "C++98">, InGroup<CXX98Compat>, DefaultIgnore;
4500def err_template_arg_untyped_null_constant : Error<
4501  "null non-type template argument must be cast to template parameter type %0">;
4502def err_template_arg_wrongtype_null_constant : Error<
4503  "null non-type template argument of type %0 does not match template parameter "
4504  "of type %1">;
4505def err_non_type_template_parm_type_deduction_failure : Error<
4506  "non-type template parameter %0 with type %1 has incompatible initializer of type %2">;
4507def err_deduced_non_type_template_arg_type_mismatch : Error<
4508  "deduced non-type template argument does not have the same type as the "
4509  "corresponding template parameter%diff{ ($ vs $)|}0,1">;
4510def err_non_type_template_arg_subobject : Error<
4511  "non-type template argument refers to subobject '%0'">;
4512def err_non_type_template_arg_addr_label_diff : Error<
4513  "template argument / label address difference / what did you expect?">;
4514def err_template_arg_not_convertible : Error<
4515  "non-type template argument of type %0 cannot be converted to a value "
4516  "of type %1">;
4517def warn_template_arg_negative : Warning<
4518  "non-type template argument with value '%0' converted to '%1' for unsigned "
4519  "template parameter of type %2">, InGroup<Conversion>, DefaultIgnore;
4520def warn_template_arg_too_large : Warning<
4521  "non-type template argument value '%0' truncated to '%1' for "
4522  "template parameter of type %2">, InGroup<Conversion>, DefaultIgnore;
4523def err_template_arg_no_ref_bind : Error<
4524  "non-type template parameter of reference type "
4525  "%diff{$ cannot bind to template argument of type $"
4526  "|cannot bind to template of incompatible argument type}0,1">;
4527def err_template_arg_ref_bind_ignores_quals : Error<
4528  "reference binding of non-type template parameter "
4529  "%diff{of type $ to template argument of type $|to template argument}0,1 "
4530  "ignores qualifiers">;
4531def err_template_arg_not_decl_ref : Error<
4532  "non-type template argument does not refer to any declaration">;
4533def err_template_arg_not_address_of : Error<
4534  "non-type template argument for template parameter of pointer type %0 must "
4535  "have its address taken">;
4536def err_template_arg_address_of_non_pointer : Error<
4537  "address taken in non-type template argument for template parameter of "
4538  "reference type %0">;
4539def err_template_arg_reference_var : Error<
4540  "non-type template argument of reference type %0 is not an object">;
4541def err_template_arg_field : Error<
4542  "non-type template argument refers to non-static data member %0">;
4543def err_template_arg_method : Error<
4544  "non-type template argument refers to non-static member function %0">;
4545def err_template_arg_object_no_linkage : Error<
4546  "non-type template argument refers to %select{function|object}0 %1 that "
4547  "does not have linkage">;
4548def warn_cxx98_compat_template_arg_object_internal : Warning<
4549  "non-type template argument referring to %select{function|object}0 %1 with "
4550  "internal linkage is incompatible with C++98">,
4551  InGroup<CXX98Compat>, DefaultIgnore;
4552def ext_template_arg_object_internal : ExtWarn<
4553  "non-type template argument referring to %select{function|object}0 %1 with "
4554  "internal linkage is a C++11 extension">, InGroup<CXX11>;
4555def err_template_arg_thread_local : Error<
4556  "non-type template argument refers to thread-local object">;
4557def note_template_arg_internal_object : Note<
4558  "non-type template argument refers to %select{function|object}0 here">;
4559def note_template_arg_refers_here : Note<
4560  "non-type template argument refers here">;
4561def err_template_arg_not_object_or_func : Error<
4562  "non-type template argument does not refer to an object or function">;
4563def err_template_arg_not_pointer_to_member_form : Error<
4564  "non-type template argument is not a pointer to member constant">;
4565def err_template_arg_member_ptr_base_derived_not_supported : Error<
4566  "sorry, non-type template argument of pointer-to-member type %1 that refers "
4567  "to member %q0 of a different class is not supported yet">;
4568def ext_template_arg_extra_parens : ExtWarn<
4569  "address non-type template argument cannot be surrounded by parentheses">;
4570def warn_cxx98_compat_template_arg_extra_parens : Warning<
4571  "redundant parentheses surrounding address non-type template argument are "
4572  "incompatible with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
4573def err_pointer_to_member_type : Error<
4574  "invalid use of pointer to member type after %select{.*|->*}0">;
4575def err_pointer_to_member_call_drops_quals : Error<
4576  "call to pointer to member function of type %0 drops '%1' qualifier%s2">;
4577def err_pointer_to_member_oper_value_classify: Error<
4578  "pointer-to-member function type %0 can only be called on an "
4579  "%select{rvalue|lvalue}1">;
4580def ext_pointer_to_const_ref_member_on_rvalue : Extension<
4581  "invoking a pointer to a 'const &' member function on an rvalue is a C++20 extension">,
4582  InGroup<CXX20>, SFINAEFailure;
4583def warn_cxx17_compat_pointer_to_const_ref_member_on_rvalue : Warning<
4584  "invoking a pointer to a 'const &' member function on an rvalue is "
4585  "incompatible with C++ standards before C++20">,
4586  InGroup<CXXPre20CompatPedantic>, DefaultIgnore;
4587def ext_ms_deref_template_argument: ExtWarn<
4588  "non-type template argument containing a dereference operation is a "
4589  "Microsoft extension">, InGroup<MicrosoftTemplate>;
4590def ext_ms_delayed_template_argument: ExtWarn<
4591  "using the undeclared type %0 as a default template argument is a "
4592  "Microsoft extension">, InGroup<MicrosoftTemplate>;
4593def err_template_arg_deduced_incomplete_pack : Error<
4594  "deduced incomplete pack %0 for template parameter %1">;
4595
4596// C++ template specialization
4597def err_template_spec_unknown_kind : Error<
4598  "can only provide an explicit specialization for a class template, function "
4599  "template, variable template, or a member function, static data member, "
4600  "%select{or member class|member class, or member enumeration}0 of a "
4601  "class template">;
4602def note_specialized_entity : Note<
4603  "explicitly specialized declaration is here">;
4604def note_explicit_specialization_declared_here : Note<
4605  "explicit specialization declared here">;
4606def err_template_spec_decl_function_scope : Error<
4607  "explicit specialization of %0 in function scope">;
4608def err_template_spec_decl_friend : Error<
4609  "cannot declare an explicit specialization in a friend">;
4610def err_template_spec_redecl_out_of_scope : Error<
4611  "%select{class template|class template partial|variable template|"
4612  "variable template partial|function template|member "
4613  "function|static data member|member class|member enumeration}0 "
4614  "specialization of %1 not in %select{a namespace enclosing %2|"
4615  "class %2 or an enclosing namespace}3">;
4616def ext_ms_template_spec_redecl_out_of_scope: ExtWarn<
4617  "%select{class template|class template partial|variable template|"
4618  "variable template partial|function template|member "
4619  "function|static data member|member class|member enumeration}0 "
4620  "specialization of %1 not in %select{a namespace enclosing %2|"
4621  "class %2 or an enclosing namespace}3 "
4622  "is a Microsoft extension">, InGroup<MicrosoftTemplate>;
4623def err_template_spec_redecl_global_scope : Error<
4624  "%select{class template|class template partial|variable template|"
4625  "variable template partial|function template|member "
4626  "function|static data member|member class|member enumeration}0 "
4627  "specialization of %1 must occur at global scope">;
4628def err_spec_member_not_instantiated : Error<
4629  "specialization of member %q0 does not specialize an instantiated member">;
4630def note_specialized_decl : Note<"attempt to specialize declaration here">;
4631def err_specialization_after_instantiation : Error<
4632  "explicit specialization of %0 after instantiation">;
4633def note_instantiation_required_here : Note<
4634  "%select{implicit|explicit}0 instantiation first required here">;
4635def err_template_spec_friend : Error<
4636  "template specialization declaration cannot be a friend">;
4637def err_template_spec_default_arg : Error<
4638  "default argument not permitted on an explicit "
4639  "%select{instantiation|specialization}0 of function %1">;
4640def err_not_class_template_specialization : Error<
4641  "cannot specialize a %select{dependent template|template template "
4642  "parameter}0">;
4643def ext_explicit_specialization_storage_class : ExtWarn<
4644  "explicit specialization cannot have a storage class">;
4645def err_explicit_specialization_inconsistent_storage_class : Error<
4646  "explicit specialization has extraneous, inconsistent storage class "
4647  "'%select{none|extern|static|__private_extern__|auto|register}0'">;
4648def err_dependent_function_template_spec_no_match : Error<
4649  "no candidate function template was found for dependent"
4650  " friend function template specialization">;
4651def note_dependent_function_template_spec_discard_reason : Note<
4652  "candidate ignored: %select{not a function template"
4653  "|not a member of the enclosing namespace;"
4654  " did you mean to explicitly qualify the specialization?}0">;
4655
4656// C++ class template specializations and out-of-line definitions
4657def err_template_spec_needs_header : Error<
4658  "template specialization requires 'template<>'">;
4659def err_template_spec_needs_template_parameters : Error<
4660  "template specialization or definition requires a template parameter list "
4661  "corresponding to the nested type %0">;
4662def err_template_param_list_matches_nontemplate : Error<
4663  "template parameter list matching the non-templated nested type %0 should "
4664  "be empty ('template<>')">;
4665def err_alias_template_extra_headers : Error<
4666  "extraneous template parameter list in alias template declaration">;
4667def err_template_spec_extra_headers : Error<
4668  "extraneous template parameter list in template specialization or "
4669  "out-of-line template definition">;
4670def warn_template_spec_extra_headers : Warning<
4671  "extraneous template parameter list in template specialization">;
4672def note_explicit_template_spec_does_not_need_header : Note<
4673  "'template<>' header not required for explicitly-specialized class %0 "
4674  "declared here">;
4675def err_template_qualified_declarator_no_match : Error<
4676  "nested name specifier '%0' for declaration does not refer into a class, "
4677  "class template or class template partial specialization">;
4678def err_specialize_member_of_template : Error<
4679  "cannot specialize %select{|(with 'template<>') }0a member of an "
4680  "unspecialized template">;
4681
4682// C++ Class Template Partial Specialization
4683def err_default_arg_in_partial_spec : Error<
4684    "default template argument in a class template partial specialization">;
4685def err_dependent_non_type_arg_in_partial_spec : Error<
4686    "type of specialized non-type template argument depends on a template "
4687    "parameter of the partial specialization">;
4688def note_dependent_non_type_default_arg_in_partial_spec : Note<
4689    "template parameter is used in default argument declared here">;
4690def err_dependent_typed_non_type_arg_in_partial_spec : Error<
4691    "non-type template argument specializes a template parameter with "
4692    "dependent type %0">;
4693def err_partial_spec_args_match_primary_template : Error<
4694    "%select{class|variable}0 template partial specialization does not "
4695    "specialize any template argument; to %select{declare|define}1 the "
4696    "primary template, remove the template argument list">;
4697def ext_partial_spec_not_more_specialized_than_primary : ExtWarn<
4698    "%select{class|variable}0 template partial specialization is not "
4699    "more specialized than the primary template">, DefaultError,
4700    InGroup<DiagGroup<"invalid-partial-specialization">>;
4701def note_partial_spec_not_more_specialized_than_primary : Note<"%0">;
4702def ext_partial_specs_not_deducible : ExtWarn<
4703    "%select{class|variable}0 template partial specialization contains "
4704    "%select{a template parameter|template parameters}1 that cannot be "
4705    "deduced; this partial specialization will never be used">,
4706    DefaultError, InGroup<DiagGroup<"unusable-partial-specialization">>;
4707def note_non_deducible_parameter : Note<
4708    "non-deducible template parameter %0">;
4709def err_partial_spec_ordering_ambiguous : Error<
4710    "ambiguous partial specializations of %0">;
4711def note_partial_spec_match : Note<"partial specialization matches %0">;
4712def err_partial_spec_redeclared : Error<
4713  "class template partial specialization %0 cannot be redeclared">;
4714def note_partial_specialization_declared_here : Note<
4715  "explicit specialization declared here">;
4716def note_prev_partial_spec_here : Note<
4717  "previous declaration of class template partial specialization %0 is here">;
4718def err_partial_spec_fully_specialized : Error<
4719  "partial specialization of %0 does not use any of its template parameters">;
4720
4721// C++ Variable Template Partial Specialization
4722def err_var_partial_spec_redeclared : Error<
4723  "variable template partial specialization %0 cannot be redefined">;
4724def note_var_prev_partial_spec_here : Note<
4725  "previous declaration of variable template partial specialization is here">;
4726def err_var_spec_no_template : Error<
4727  "no variable template matches%select{| partial}0 specialization">;
4728def err_var_spec_no_template_but_method : Error<
4729  "no variable template matches specialization; "
4730  "did you mean to use %0 as function template instead?">;
4731
4732// C++ Function template specializations
4733def err_function_template_spec_no_match : Error<
4734    "no function template matches function template specialization %0">;
4735def err_function_template_spec_ambiguous : Error<
4736    "function template specialization %0 ambiguously refers to more than one "
4737    "function template; explicitly specify%select{| additional}1 template "
4738    "arguments to identify a particular function template">;
4739def note_function_template_spec_matched : Note<
4740    "function template %q0 matches specialization %1">;
4741def err_function_template_partial_spec : Error<
4742    "function template partial specialization is not allowed">;
4743
4744// C++ Template Instantiation
4745def err_template_recursion_depth_exceeded : Error<
4746  "recursive template instantiation exceeded maximum depth of %0">,
4747  DefaultFatal, NoSFINAE;
4748def note_template_recursion_depth : Note<
4749  "use -ftemplate-depth=N to increase recursive template instantiation depth">;
4750
4751def err_template_instantiate_within_definition : Error<
4752  "%select{implicit|explicit}0 instantiation of template %1 within its"
4753  " own definition">;
4754def err_template_instantiate_undefined : Error<
4755  "%select{implicit|explicit}0 instantiation of undefined template %1">;
4756def err_implicit_instantiate_member_undefined : Error<
4757  "implicit instantiation of undefined member %0">;
4758def note_template_class_instantiation_was_here : Note<
4759  "class template %0 was instantiated here">;
4760def note_template_class_explicit_specialization_was_here : Note<
4761  "class template %0 was explicitly specialized here">;
4762def note_template_class_instantiation_here : Note<
4763  "in instantiation of template class %q0 requested here">;
4764def note_template_member_class_here : Note<
4765  "in instantiation of member class %q0 requested here">;
4766def note_template_member_function_here : Note<
4767  "in instantiation of member function %q0 requested here">;
4768def note_function_template_spec_here : Note<
4769  "in instantiation of function template specialization %q0 requested here">;
4770def note_template_static_data_member_def_here : Note<
4771  "in instantiation of static data member %q0 requested here">;
4772def note_template_variable_def_here : Note<
4773  "in instantiation of variable template specialization %q0 requested here">;
4774def note_template_enum_def_here : Note<
4775  "in instantiation of enumeration %q0 requested here">;
4776def note_template_nsdmi_here : Note<
4777  "in instantiation of default member initializer %q0 requested here">;
4778def note_template_type_alias_instantiation_here : Note<
4779  "in instantiation of template type alias %0 requested here">;
4780def note_template_exception_spec_instantiation_here : Note<
4781  "in instantiation of exception specification for %0 requested here">;
4782def note_template_requirement_instantiation_here : Note<
4783  "in instantiation of requirement here">;
4784def warn_var_template_missing : Warning<"instantiation of variable %q0 "
4785  "required here, but no definition is available">,
4786  InGroup<UndefinedVarTemplate>;
4787def warn_func_template_missing : Warning<"instantiation of function %q0 "
4788  "required here, but no definition is available">,
4789  InGroup<UndefinedFuncTemplate>, DefaultIgnore;
4790def note_forward_template_decl : Note<
4791  "forward declaration of template entity is here">;
4792def note_inst_declaration_hint : Note<"add an explicit instantiation "
4793  "declaration to suppress this warning if %q0 is explicitly instantiated in "
4794  "another translation unit">;
4795def note_evaluating_exception_spec_here : Note<
4796  "in evaluation of exception specification for %q0 needed here">;
4797
4798def note_default_arg_instantiation_here : Note<
4799  "in instantiation of default argument for '%0' required here">;
4800def note_default_function_arg_instantiation_here : Note<
4801  "in instantiation of default function argument expression "
4802  "for '%0' required here">;
4803def note_explicit_template_arg_substitution_here : Note<
4804  "while substituting explicitly-specified template arguments into function "
4805  "template %0 %1">;
4806def note_function_template_deduction_instantiation_here : Note<
4807  "while substituting deduced template arguments into function template %0 "
4808  "%1">;
4809def note_deduced_template_arg_substitution_here : Note<
4810  "during template argument deduction for %select{class|variable}0 template "
4811  "%select{partial specialization |}1%2 %3">;
4812def note_prior_template_arg_substitution : Note<
4813  "while substituting prior template arguments into %select{non-type|template}0"
4814  " template parameter%1 %2">;
4815def note_template_default_arg_checking : Note<
4816  "while checking a default template argument used here">;
4817def note_concept_specialization_here : Note<
4818  "while checking the satisfaction of concept '%0' requested here">;
4819def note_nested_requirement_here : Note<
4820  "while checking the satisfaction of nested requirement requested here">;
4821def note_checking_constraints_for_template_id_here : Note<
4822  "while checking constraint satisfaction for template '%0' required here">;
4823def note_checking_constraints_for_var_spec_id_here : Note<
4824  "while checking constraint satisfaction for variable template "
4825  "partial specialization '%0' required here">;
4826def note_checking_constraints_for_class_spec_id_here : Note<
4827  "while checking constraint satisfaction for class template partial "
4828  "specialization '%0' required here">;
4829def note_checking_constraints_for_function_here : Note<
4830  "while checking constraint satisfaction for function '%0' required here">;
4831def note_constraint_substitution_here : Note<
4832  "while substituting template arguments into constraint expression here">;
4833def note_constraint_normalization_here : Note<
4834  "while calculating associated constraint of template '%0' here">;
4835def note_parameter_mapping_substitution_here : Note<
4836  "while substituting into concept arguments here; substitution failures not "
4837  "allowed in concept arguments">;
4838def note_instantiation_contexts_suppressed : Note<
4839  "(skipping %0 context%s0 in backtrace; use -ftemplate-backtrace-limit=0 to "
4840  "see all)">;
4841
4842def err_field_instantiates_to_function : Error<
4843  "data member instantiated with function type %0">;
4844def err_variable_instantiates_to_function : Error<
4845  "%select{variable|static data member}0 instantiated with function type %1">;
4846def err_nested_name_spec_non_tag : Error<
4847  "type %0 cannot be used prior to '::' because it has no members">;
4848
4849def err_using_pack_expansion_empty : Error<
4850  "%select{|member}0 using declaration %1 instantiates to an empty pack">;
4851
4852// C++ Explicit Instantiation
4853def err_explicit_instantiation_duplicate : Error<
4854    "duplicate explicit instantiation of %0">;
4855def ext_explicit_instantiation_duplicate : ExtWarn<
4856    "duplicate explicit instantiation of %0 ignored as a Microsoft extension">,
4857    InGroup<MicrosoftTemplate>;
4858def note_previous_explicit_instantiation : Note<
4859    "previous explicit instantiation is here">;
4860def warn_explicit_instantiation_after_specialization : Warning<
4861  "explicit instantiation of %0 that occurs after an explicit "
4862  "specialization has no effect">,
4863  InGroup<DiagGroup<"instantiation-after-specialization">>;
4864def note_previous_template_specialization : Note<
4865    "previous template specialization is here">;
4866def err_explicit_instantiation_nontemplate_type : Error<
4867    "explicit instantiation of non-templated type %0">;
4868def note_nontemplate_decl_here : Note<
4869    "non-templated declaration is here">;
4870def err_explicit_instantiation_in_class : Error<
4871  "explicit instantiation of %0 in class scope">;
4872def err_explicit_instantiation_out_of_scope : Error<
4873  "explicit instantiation of %0 not in a namespace enclosing %1">;
4874def err_explicit_instantiation_must_be_global : Error<
4875  "explicit instantiation of %0 must occur at global scope">;
4876def warn_explicit_instantiation_out_of_scope_0x : Warning<
4877  "explicit instantiation of %0 not in a namespace enclosing %1">,
4878  InGroup<CXX11Compat>, DefaultIgnore;
4879def warn_explicit_instantiation_must_be_global_0x : Warning<
4880  "explicit instantiation of %0 must occur at global scope">,
4881  InGroup<CXX11Compat>, DefaultIgnore;
4882
4883def err_explicit_instantiation_requires_name : Error<
4884  "explicit instantiation declaration requires a name">;
4885def err_explicit_instantiation_of_typedef : Error<
4886  "explicit instantiation of typedef %0">;
4887def err_explicit_instantiation_storage_class : Error<
4888  "explicit instantiation cannot have a storage class">;
4889def err_explicit_instantiation_internal_linkage : Error<
4890  "explicit instantiation declaration of %0 with internal linkage">;
4891def err_explicit_instantiation_not_known : Error<
4892  "explicit instantiation of %0 does not refer to a function template, "
4893  "variable template, member function, member class, or static data member">;
4894def note_explicit_instantiation_here : Note<
4895  "explicit instantiation refers here">;
4896def err_explicit_instantiation_data_member_not_instantiated : Error<
4897  "explicit instantiation refers to static data member %q0 that is not an "
4898  "instantiation">;
4899def err_explicit_instantiation_member_function_not_instantiated : Error<
4900  "explicit instantiation refers to member function %q0 that is not an "
4901  "instantiation">;
4902def err_explicit_instantiation_ambiguous : Error<
4903  "partial ordering for explicit instantiation of %0 is ambiguous">;
4904def note_explicit_instantiation_candidate : Note<
4905  "explicit instantiation candidate function %q0 template here %1">;
4906def err_explicit_instantiation_inline : Error<
4907  "explicit instantiation cannot be 'inline'">;
4908def warn_explicit_instantiation_inline_0x : Warning<
4909  "explicit instantiation cannot be 'inline'">, InGroup<CXX11Compat>,
4910  DefaultIgnore;
4911def err_explicit_instantiation_constexpr : Error<
4912  "explicit instantiation cannot be 'constexpr'">;
4913def ext_explicit_instantiation_without_qualified_id : Extension<
4914  "qualifier in explicit instantiation of %q0 requires a template-id "
4915  "(a typedef is not permitted)">;
4916def err_explicit_instantiation_without_template_id : Error<
4917  "explicit instantiation of %q0 must specify a template argument list">;
4918def err_explicit_instantiation_unqualified_wrong_namespace : Error<
4919  "explicit instantiation of %q0 must occur in namespace %1">;
4920def warn_explicit_instantiation_unqualified_wrong_namespace_0x : Warning<
4921  "explicit instantiation of %q0 must occur in namespace %1">,
4922  InGroup<CXX11Compat>, DefaultIgnore;
4923def err_explicit_instantiation_undefined_member : Error<
4924  "explicit instantiation of undefined %select{member class|member function|"
4925  "static data member}0 %1 of class template %2">;
4926def err_explicit_instantiation_undefined_func_template : Error<
4927  "explicit instantiation of undefined function template %0">;
4928def err_explicit_instantiation_undefined_var_template : Error<
4929  "explicit instantiation of undefined variable template %q0">;
4930def err_explicit_instantiation_declaration_after_definition : Error<
4931  "explicit instantiation declaration (with 'extern') follows explicit "
4932  "instantiation definition (without 'extern')">;
4933def note_explicit_instantiation_definition_here : Note<
4934  "explicit instantiation definition is here">;
4935def err_invalid_var_template_spec_type : Error<"type %2 "
4936  "of %select{explicit instantiation|explicit specialization|"
4937  "partial specialization|redeclaration}0 of %1 does not match"
4938  " expected type %3">;
4939def err_mismatched_exception_spec_explicit_instantiation : Error<
4940  "exception specification in explicit instantiation does not match "
4941  "instantiated one">;
4942def ext_mismatched_exception_spec_explicit_instantiation : ExtWarn<
4943  err_mismatched_exception_spec_explicit_instantiation.Text>,
4944  InGroup<MicrosoftExceptionSpec>;
4945
4946// C++ typename-specifiers
4947def err_typename_nested_not_found : Error<"no type named %0 in %1">;
4948def err_typename_nested_not_found_enable_if : Error<
4949  "no type named 'type' in %0; 'enable_if' cannot be used to disable "
4950  "this declaration">;
4951def err_typename_nested_not_found_requirement : Error<
4952  "failed requirement '%0'; 'enable_if' cannot be used to disable this "
4953  "declaration">;
4954def err_typename_nested_not_type : Error<
4955    "typename specifier refers to non-type member %0 in %1">;
4956def err_typename_not_type : Error<
4957    "typename specifier refers to non-type %0">;
4958def note_typename_member_refers_here : Note<
4959    "referenced member %0 is declared here">;
4960def note_typename_refers_here : Note<
4961    "referenced %0 is declared here">;
4962def err_typename_missing : Error<
4963  "missing 'typename' prior to dependent type name '%0%1'">;
4964def err_typename_missing_template : Error<
4965  "missing 'typename' prior to dependent type template name '%0%1'">;
4966def ext_typename_missing : ExtWarn<
4967  "missing 'typename' prior to dependent type name '%0%1'">,
4968  InGroup<DiagGroup<"typename-missing">>;
4969def ext_typename_outside_of_template : ExtWarn<
4970  "'typename' occurs outside of a template">, InGroup<CXX11>;
4971def warn_cxx98_compat_typename_outside_of_template : Warning<
4972  "use of 'typename' outside of a template is incompatible with C++98">,
4973  InGroup<CXX98Compat>, DefaultIgnore;
4974def err_typename_refers_to_using_value_decl : Error<
4975  "typename specifier refers to a dependent using declaration for a value "
4976  "%0 in %1">;
4977def note_using_value_decl_missing_typename : Note<
4978  "add 'typename' to treat this using declaration as a type">;
4979
4980def err_template_kw_refers_to_non_template : Error<
4981  "%0%select{| following the 'template' keyword}1 "
4982  "does not refer to a template">;
4983def note_template_kw_refers_to_non_template : Note<
4984  "declared as a non-template here">;
4985def err_template_kw_refers_to_dependent_non_template : Error<
4986  "%0%select{| following the 'template' keyword}1 "
4987  "cannot refer to a dependent template">;
4988def err_template_kw_refers_to_class_template : Error<
4989  "'%0%1' instantiated to a class template, not a function template">;
4990def note_referenced_class_template : Note<
4991  "class template declared here">;
4992def err_template_kw_missing : Error<
4993  "missing 'template' keyword prior to dependent template name '%0%1'">;
4994def ext_template_outside_of_template : ExtWarn<
4995  "'template' keyword outside of a template">, InGroup<CXX11>;
4996def warn_cxx98_compat_template_outside_of_template : Warning<
4997  "use of 'template' keyword outside of a template is incompatible with C++98">,
4998  InGroup<CXX98Compat>, DefaultIgnore;
4999
5000def err_non_type_template_in_nested_name_specifier : Error<
5001  "qualified name refers into a specialization of %select{function|variable}0 "
5002  "template %1">;
5003def err_template_id_not_a_type : Error<
5004  "template name refers to non-type template %0">;
5005def note_template_declared_here : Note<
5006  "%select{function template|class template|variable template"
5007  "|type alias template|template template parameter}0 "
5008  "%1 declared here">;
5009def err_template_expansion_into_fixed_list : Error<
5010  "pack expansion used as argument for non-pack parameter of %select{alias "
5011  "template|concept}0">;
5012def note_parameter_type : Note<
5013  "parameter of type %0 is declared here">;
5014
5015// C++11 Variadic Templates
5016def err_template_param_pack_default_arg : Error<
5017  "template parameter pack cannot have a default argument">;
5018def err_template_param_pack_must_be_last_template_parameter : Error<
5019  "template parameter pack must be the last template parameter">;
5020
5021def err_template_parameter_pack_non_pack : Error<
5022  "%select{template type|non-type template|template template}0 parameter"
5023  "%select{| pack}1 conflicts with previous %select{template type|"
5024  "non-type template|template template}0 parameter%select{ pack|}1">;
5025def note_template_parameter_pack_non_pack : Note<
5026  "%select{template type|non-type template|template template}0 parameter"
5027  "%select{| pack}1 does not match %select{template type|non-type template"
5028  "|template template}0 parameter%select{ pack|}1 in template argument">;
5029def note_template_parameter_pack_here : Note<
5030  "previous %select{template type|non-type template|template template}0 "
5031  "parameter%select{| pack}1 declared here">;
5032
5033def err_unexpanded_parameter_pack : Error<
5034  "%select{expression|base type|declaration type|data member type|bit-field "
5035  "size|static assertion|fixed underlying type|enumerator value|"
5036  "using declaration|friend declaration|qualifier|initializer|default argument|"
5037  "non-type template parameter type|exception type|partial specialization|"
5038  "__if_exists name|__if_not_exists name|lambda|block|type constraint}0 "
5039  "contains%plural{0: an|:}1 unexpanded parameter pack"
5040  "%plural{0:|1: %2|2:s %2 and %3|:s %2, %3, ...}1">;
5041
5042def err_pack_expansion_without_parameter_packs : Error<
5043  "pack expansion does not contain any unexpanded parameter packs">;
5044def err_pack_expansion_length_conflict : Error<
5045  "pack expansion contains parameter packs %0 and %1 that have different "
5046  "lengths (%2 vs. %3)">;
5047def err_pack_expansion_length_conflict_multilevel : Error<
5048  "pack expansion contains parameter pack %0 that has a different "
5049  "length (%1 vs. %2) from outer parameter packs">;
5050def err_pack_expansion_length_conflict_partial : Error<
5051  "pack expansion contains parameter pack %0 that has a different "
5052  "length (at least %1 vs. %2) from outer parameter packs">;
5053def err_pack_expansion_member_init : Error<
5054  "pack expansion for initialization of member %0">;
5055
5056def err_function_parameter_pack_without_parameter_packs : Error<
5057  "type %0 of function parameter pack does not contain any unexpanded "
5058  "parameter packs">;
5059def err_ellipsis_in_declarator_not_parameter : Error<
5060  "only function and template parameters can be parameter packs">;
5061
5062def err_sizeof_pack_no_pack_name : Error<
5063  "%0 does not refer to the name of a parameter pack">;
5064
5065def err_fold_expression_packs_both_sides : Error<
5066  "binary fold expression has unexpanded parameter packs in both operands">;
5067def err_fold_expression_empty : Error<
5068  "unary fold expression has empty expansion for operator '%0' "
5069  "with no fallback value">;
5070def err_fold_expression_bad_operand : Error<
5071  "expression not permitted as operand of fold expression">;
5072
5073def err_unexpected_typedef : Error<
5074  "unexpected type name %0: expected expression">;
5075def err_unexpected_namespace : Error<
5076  "unexpected namespace name %0: expected expression">;
5077def err_undeclared_var_use : Error<"use of undeclared identifier %0">;
5078def ext_undeclared_unqual_id_with_dependent_base : ExtWarn<
5079  "use of undeclared identifier %0; "
5080  "unqualified lookup into dependent bases of class template %1 is a Microsoft extension">,
5081  InGroup<MicrosoftTemplate>;
5082def ext_found_via_dependent_bases_lookup : ExtWarn<"use of identifier %0 "
5083  "found via unqualified lookup into dependent bases of class templates is a "
5084  "Microsoft extension">, InGroup<MicrosoftTemplate>;
5085def note_dependent_var_use : Note<"must qualify identifier to find this "
5086    "declaration in dependent base class">;
5087def err_not_found_by_two_phase_lookup : Error<"call to function %0 that is neither "
5088    "visible in the template definition nor found by argument-dependent lookup">;
5089def note_not_found_by_two_phase_lookup : Note<"%0 should be declared prior to the "
5090    "call site%select{| or in %2| or in an associated namespace of one of its arguments}1">;
5091def err_undeclared_use : Error<"use of undeclared %0">;
5092def warn_deprecated : Warning<"%0 is deprecated">,
5093    InGroup<DeprecatedDeclarations>;
5094def note_from_diagnose_if : Note<"from 'diagnose_if' attribute on %0:">;
5095def warn_property_method_deprecated :
5096    Warning<"property access is using %0 method which is deprecated">,
5097    InGroup<DeprecatedDeclarations>;
5098def warn_deprecated_message : Warning<"%0 is deprecated: %1">,
5099    InGroup<DeprecatedDeclarations>;
5100def warn_deprecated_anonymous_namespace : Warning<
5101  "'deprecated' attribute on anonymous namespace ignored">,
5102  InGroup<IgnoredAttributes>;
5103def warn_deprecated_fwdclass_message : Warning<
5104    "%0 may be deprecated because the receiver type is unknown">,
5105    InGroup<DeprecatedDeclarations>;
5106def warn_deprecated_def : Warning<
5107  "implementing deprecated %select{method|class|category}0">,
5108  InGroup<DeprecatedImplementations>, DefaultIgnore;
5109def warn_unavailable_def : Warning<
5110  "implementing unavailable method">,
5111  InGroup<DeprecatedImplementations>, DefaultIgnore;
5112def err_unavailable : Error<"%0 is unavailable">;
5113def err_property_method_unavailable :
5114    Error<"property access is using %0 method which is unavailable">;
5115def err_unavailable_message : Error<"%0 is unavailable: %1">;
5116def warn_unavailable_fwdclass_message : Warning<
5117    "%0 may be unavailable because the receiver type is unknown">,
5118    InGroup<UnavailableDeclarations>;
5119def note_availability_specified_here : Note<
5120  "%0 has been explicitly marked "
5121  "%select{unavailable|deleted|deprecated}1 here">;
5122def note_partial_availability_specified_here : Note<
5123  "%0 has been marked as being introduced in %1 %2 here, "
5124  "but the deployment target is %1 %3">;
5125def note_implicitly_deleted : Note<
5126  "explicitly defaulted function was implicitly deleted here">;
5127def warn_not_enough_argument : Warning<
5128  "not enough variable arguments in %0 declaration to fit a sentinel">,
5129  InGroup<Sentinel>;
5130def warn_missing_sentinel : Warning <
5131  "missing sentinel in %select{function call|method dispatch|block call}0">,
5132  InGroup<Sentinel>;
5133def note_sentinel_here : Note<
5134  "%select{function|method|block}0 has been explicitly marked sentinel here">;
5135def warn_missing_prototype : Warning<
5136  "no previous prototype for function %0">,
5137  InGroup<DiagGroup<"missing-prototypes">>, DefaultIgnore;
5138def note_declaration_not_a_prototype : Note<
5139  "this declaration is not a prototype; add %select{'void'|parameter declarations}0 "
5140  "to make it %select{a prototype for a zero-parameter function|one}0">;
5141def warn_strict_prototypes : Warning<
5142  "this %select{function declaration is not|block declaration is not|"
5143  "old-style function definition is not preceded by}0 a prototype">,
5144  InGroup<DiagGroup<"strict-prototypes">>, DefaultIgnore;
5145def warn_missing_variable_declarations : Warning<
5146  "no previous extern declaration for non-static variable %0">,
5147  InGroup<DiagGroup<"missing-variable-declarations">>, DefaultIgnore;
5148def note_static_for_internal_linkage : Note<
5149  "declare 'static' if the %select{variable|function}0 is not intended to be "
5150  "used outside of this translation unit">;
5151def err_static_data_member_reinitialization :
5152  Error<"static data member %0 already has an initializer">;
5153def err_redefinition : Error<"redefinition of %0">;
5154def err_alias_after_tentative :
5155  Error<"alias definition of %0 after tentative definition">;
5156def err_alias_is_definition :
5157  Error<"definition %0 cannot also be an %select{alias|ifunc}1">;
5158def err_definition_of_implicitly_declared_member : Error<
5159  "definition of implicitly declared %select{default constructor|copy "
5160  "constructor|move constructor|copy assignment operator|move assignment "
5161  "operator|destructor|function}1">;
5162def err_definition_of_explicitly_defaulted_member : Error<
5163  "definition of explicitly defaulted %select{default constructor|copy "
5164  "constructor|move constructor|copy assignment operator|move assignment "
5165  "operator|destructor|function}0">;
5166def err_redefinition_extern_inline : Error<
5167  "redefinition of a 'extern inline' function %0 is not supported in "
5168  "%select{C99 mode|C++}1">;
5169def warn_attr_abi_tag_namespace : Warning<
5170  "'abi_tag' attribute on %select{non-inline|anonymous}0 namespace ignored">,
5171  InGroup<IgnoredAttributes>;
5172def err_abi_tag_on_redeclaration : Error<
5173  "cannot add 'abi_tag' attribute in a redeclaration">;
5174def err_new_abi_tag_on_redeclaration : Error<
5175  "'abi_tag' %0 missing in original declaration">;
5176def note_use_ifdef_guards : Note<
5177  "unguarded header; consider using #ifdef guards or #pragma once">;
5178
5179def note_deleted_dtor_no_operator_delete : Note<
5180  "virtual destructor requires an unambiguous, accessible 'operator delete'">;
5181def note_deleted_special_member_class_subobject : Note<
5182  "%select{default constructor of|copy constructor of|move constructor of|"
5183  "copy assignment operator of|move assignment operator of|destructor of|"
5184  "constructor inherited by}0 "
5185  "%1 is implicitly deleted because "
5186  "%select{base class %3|%select{||||variant }4field %3}2 "
5187  "%select{has "
5188  "%select{no|a deleted|multiple|an inaccessible|a non-trivial}4 "
5189  "%select{%select{default constructor|copy constructor|move constructor|copy "
5190  "assignment operator|move assignment operator|destructor|"
5191  "%select{default|corresponding|default|default|default}4 constructor}0|"
5192  "destructor}5"
5193  "%select{||s||}4"
5194  "|is an ObjC pointer}6">;
5195def note_deleted_default_ctor_uninit_field : Note<
5196  "%select{default constructor of|constructor inherited by}0 "
5197  "%1 is implicitly deleted because field %2 of "
5198  "%select{reference|const-qualified}4 type %3 would not be initialized">;
5199def note_deleted_default_ctor_all_const : Note<
5200  "%select{default constructor of|constructor inherited by}0 "
5201  "%1 is implicitly deleted because all "
5202  "%select{data members|data members of an anonymous union member}2"
5203  " are const-qualified">;
5204def note_deleted_copy_ctor_rvalue_reference : Note<
5205  "copy constructor of %0 is implicitly deleted because field %1 is of "
5206  "rvalue reference type %2">;
5207def note_deleted_copy_user_declared_move : Note<
5208  "copy %select{constructor|assignment operator}0 is implicitly deleted because"
5209  " %1 has a user-declared move %select{constructor|assignment operator}2">;
5210def note_deleted_assign_field : Note<
5211  "%select{copy|move}0 assignment operator of %1 is implicitly deleted "
5212  "because field %2 is of %select{reference|const-qualified}4 type %3">;
5213
5214// These should be errors.
5215def warn_undefined_internal : Warning<
5216  "%select{function|variable}0 %q1 has internal linkage but is not defined">,
5217  InGroup<DiagGroup<"undefined-internal">>;
5218def err_undefined_internal_type : Error<
5219  "%select{function|variable}0 %q1 is used but not defined in this "
5220  "translation unit, and cannot be defined in any other translation unit "
5221  "because its type does not have linkage">;
5222def ext_undefined_internal_type : Extension<
5223  "ISO C++ requires a definition in this translation unit for "
5224  "%select{function|variable}0 %q1 because its type does not have linkage">,
5225  InGroup<DiagGroup<"undefined-internal-type">>;
5226def warn_undefined_inline : Warning<"inline function %q0 is not defined">,
5227  InGroup<DiagGroup<"undefined-inline">>;
5228def err_undefined_inline_var : Error<"inline variable %q0 is not defined">;
5229def note_used_here : Note<"used here">;
5230
5231def err_internal_linkage_redeclaration : Error<
5232  "'internal_linkage' attribute does not appear on the first declaration of %0">;
5233def warn_internal_linkage_local_storage : Warning<
5234  "'internal_linkage' attribute on a non-static local variable is ignored">,
5235  InGroup<IgnoredAttributes>;
5236
5237def ext_internal_in_extern_inline : ExtWarn<
5238  "static %select{function|variable}0 %1 is used in an inline function with "
5239  "external linkage">, InGroup<StaticInInline>;
5240def ext_internal_in_extern_inline_quiet : Extension<
5241  "static %select{function|variable}0 %1 is used in an inline function with "
5242  "external linkage">, InGroup<StaticInInline>;
5243def warn_static_local_in_extern_inline : Warning<
5244  "non-constant static local variable in inline function may be different "
5245  "in different files">, InGroup<StaticLocalInInline>;
5246def note_convert_inline_to_static : Note<
5247  "use 'static' to give inline function %0 internal linkage">;
5248
5249def ext_redefinition_of_typedef : ExtWarn<
5250  "redefinition of typedef %0 is a C11 feature">,
5251  InGroup<DiagGroup<"typedef-redefinition"> >;
5252def err_redefinition_variably_modified_typedef : Error<
5253  "redefinition of %select{typedef|type alias}0 for variably-modified type %1">;
5254
5255def err_inline_decl_follows_def : Error<
5256  "inline declaration of %0 follows non-inline definition">;
5257def err_inline_declaration_block_scope : Error<
5258  "inline declaration of %0 not allowed in block scope">;
5259def err_static_non_static : Error<
5260  "static declaration of %0 follows non-static declaration">;
5261def err_different_language_linkage : Error<
5262  "declaration of %0 has a different language linkage">;
5263def ext_retained_language_linkage : Extension<
5264  "friend function %0 retaining previous language linkage is an extension">,
5265  InGroup<DiagGroup<"retained-language-linkage">>;
5266def err_extern_c_global_conflict : Error<
5267  "declaration of %1 %select{with C language linkage|in global scope}0 "
5268  "conflicts with declaration %select{in global scope|with C language linkage}0">;
5269def note_extern_c_global_conflict : Note<
5270  "declared %select{in global scope|with C language linkage}0 here">;
5271def note_extern_c_begins_here : Note<
5272  "extern \"C\" language linkage specification begins here">;
5273def warn_weak_import : Warning <
5274  "an already-declared variable is made a weak_import declaration %0">;
5275def ext_static_non_static : Extension<
5276  "redeclaring non-static %0 as static is a Microsoft extension">,
5277  InGroup<MicrosoftRedeclareStatic>;
5278def err_non_static_static : Error<
5279  "non-static declaration of %0 follows static declaration">;
5280def err_extern_non_extern : Error<
5281  "extern declaration of %0 follows non-extern declaration">;
5282def err_non_extern_extern : Error<
5283  "non-extern declaration of %0 follows extern declaration">;
5284def err_non_thread_thread : Error<
5285  "non-thread-local declaration of %0 follows thread-local declaration">;
5286def err_thread_non_thread : Error<
5287  "thread-local declaration of %0 follows non-thread-local declaration">;
5288def err_thread_thread_different_kind : Error<
5289  "thread-local declaration of %0 with %select{static|dynamic}1 initialization "
5290  "follows declaration with %select{dynamic|static}1 initialization">;
5291def err_mismatched_owning_module : Error<
5292  "declaration of %0 in %select{the global module|module %2}1 follows "
5293  "declaration in %select{the global module|module %4}3">;
5294def err_redefinition_different_type : Error<
5295  "redefinition of %0 with a different type%diff{: $ vs $|}1,2">;
5296def err_redefinition_different_kind : Error<
5297  "redefinition of %0 as different kind of symbol">;
5298def err_redefinition_different_namespace_alias : Error<
5299  "redefinition of %0 as an alias for a different namespace">;
5300def note_previous_namespace_alias : Note<
5301  "previously defined as an alias for %0">;
5302def warn_forward_class_redefinition : Warning<
5303  "redefinition of forward class %0 of a typedef name of an object type is ignored">,
5304  InGroup<DiagGroup<"objc-forward-class-redefinition">>;
5305def err_redefinition_different_typedef : Error<
5306  "%select{typedef|type alias|type alias template}0 "
5307  "redefinition with different types%diff{ ($ vs $)|}1,2">;
5308def err_tag_reference_non_tag : Error<
5309  "%select{non-struct type|non-class type|non-union type|non-enum "
5310  "type|typedef|type alias|template|type alias template|template "
5311  "template argument}1 %0 cannot be referenced with a "
5312  "%select{struct|interface|union|class|enum}2 specifier">;
5313def err_tag_reference_conflict : Error<
5314  "implicit declaration introduced by elaborated type conflicts with a "
5315  "%select{non-struct type|non-class type|non-union type|non-enum "
5316  "type|typedef|type alias|template|type alias template|template "
5317  "template argument}0 of the same name">;
5318def err_dependent_tag_decl : Error<
5319  "%select{declaration|definition}0 of "
5320  "%select{struct|interface|union|class|enum}1 in a dependent scope">;
5321def err_tag_definition_of_typedef : Error<
5322  "definition of type %0 conflicts with %select{typedef|type alias}1 of the same name">;
5323def err_conflicting_types : Error<"conflicting types for %0">;
5324def err_different_pass_object_size_params : Error<
5325  "conflicting pass_object_size attributes on parameters">;
5326def err_late_asm_label_name : Error<
5327  "cannot apply asm label to %select{variable|function}0 after its first use">;
5328def err_different_asm_label : Error<"conflicting asm label">;
5329def err_nested_redefinition : Error<"nested redefinition of %0">;
5330def err_use_with_wrong_tag : Error<
5331  "use of %0 with tag type that does not match previous declaration">;
5332def warn_struct_class_tag_mismatch : Warning<
5333  "%select{struct|interface|class}0%select{| template}1 %2 was previously "
5334  "declared as a %select{struct|interface|class}3%select{| template}1; "
5335  "this is valid, but may result in linker errors under the Microsoft C++ ABI">,
5336  InGroup<MismatchedTags>, DefaultIgnore;
5337def warn_struct_class_previous_tag_mismatch : Warning<
5338  "%2 defined as %select{a struct|an interface|a class}0%select{| template}1 "
5339  "here but previously declared as "
5340  "%select{a struct|an interface|a class}3%select{| template}1; "
5341  "this is valid, but may result in linker errors under the Microsoft C++ ABI">,
5342  InGroup<MismatchedTags>, DefaultIgnore;
5343def note_struct_class_suggestion : Note<
5344  "did you mean %select{struct|interface|class}0 here?">;
5345def ext_forward_ref_enum : Extension<
5346  "ISO C forbids forward references to 'enum' types">;
5347def err_forward_ref_enum : Error<
5348  "ISO C++ forbids forward references to 'enum' types">;
5349def ext_ms_forward_ref_enum : ExtWarn<
5350  "forward references to 'enum' types are a Microsoft extension">,
5351  InGroup<MicrosoftEnumForwardReference>;
5352def ext_forward_ref_enum_def : Extension<
5353  "redeclaration of already-defined enum %0 is a GNU extension">,
5354  InGroup<GNURedeclaredEnum>;
5355
5356def err_redefinition_of_enumerator : Error<"redefinition of enumerator %0">;
5357def err_duplicate_member : Error<"duplicate member %0">;
5358def err_misplaced_ivar : Error<
5359  "instance variables may not be placed in %select{categories|class extension}0">;
5360def warn_ivars_in_interface : Warning<
5361  "declaration of instance variables in the interface is deprecated">,
5362  InGroup<DiagGroup<"objc-interface-ivars">>, DefaultIgnore;
5363def ext_enum_value_not_int : Extension<
5364  "ISO C restricts enumerator values to range of 'int' (%0 is too "
5365  "%select{small|large}1)">;
5366def ext_enum_too_large : ExtWarn<
5367  "enumeration values exceed range of largest integer">, InGroup<EnumTooLarge>;
5368def ext_enumerator_increment_too_large : ExtWarn<
5369  "incremented enumerator value %0 is not representable in the "
5370  "largest integer type">, InGroup<EnumTooLarge>;
5371def warn_flag_enum_constant_out_of_range : Warning<
5372  "enumeration value %0 is out of range of flags in enumeration type %1">,
5373  InGroup<FlagEnum>;
5374
5375def warn_illegal_constant_array_size : Extension<
5376  "size of static array must be an integer constant expression">;
5377def err_vm_decl_in_file_scope : Error<
5378  "variably modified type declaration not allowed at file scope">;
5379def err_vm_decl_has_extern_linkage : Error<
5380  "variably modified type declaration cannot have 'extern' linkage">;
5381def err_typecheck_field_variable_size : Error<
5382  "fields must have a constant size: 'variable length array in structure' "
5383  "extension will never be supported">;
5384def err_vm_func_decl : Error<
5385  "function declaration cannot have variably modified type">;
5386def err_array_too_large : Error<
5387  "array is too large (%0 elements)">;
5388
5389def err_typecheck_negative_array_size : Error<"array size is negative">;
5390def warn_typecheck_function_qualifiers_ignored : Warning<
5391  "'%0' qualifier on function type %1 has no effect">,
5392  InGroup<IgnoredQualifiers>;
5393def warn_typecheck_function_qualifiers_unspecified : Warning<
5394  "'%0' qualifier on function type %1 has unspecified behavior">;
5395def warn_typecheck_reference_qualifiers : Warning<
5396  "'%0' qualifier on reference type %1 has no effect">,
5397  InGroup<IgnoredQualifiers>;
5398def err_typecheck_invalid_restrict_not_pointer : Error<
5399  "restrict requires a pointer or reference (%0 is invalid)">;
5400def err_typecheck_invalid_restrict_not_pointer_noarg : Error<
5401  "restrict requires a pointer or reference">;
5402def err_typecheck_invalid_restrict_invalid_pointee : Error<
5403  "pointer to function type %0 may not be 'restrict' qualified">;
5404def ext_typecheck_zero_array_size : Extension<
5405  "zero size arrays are an extension">, InGroup<ZeroLengthArray>;
5406def err_typecheck_zero_array_size : Error<
5407  "zero-length arrays are not permitted in C++">;
5408def err_array_size_non_int : Error<"size of array has non-integer type %0">;
5409def err_init_element_not_constant : Error<
5410  "initializer element is not a compile-time constant">;
5411def ext_aggregate_init_not_constant : Extension<
5412  "initializer for aggregate is not a compile-time constant">, InGroup<C99>;
5413def err_local_cant_init : Error<
5414  "'__local' variable cannot have an initializer">;
5415def err_loader_uninitialized_cant_init
5416    : Error<"variable with 'loader_uninitialized' attribute cannot have an "
5417            "initializer">;
5418def err_loader_uninitialized_trivial_ctor
5419    : Error<"variable with 'loader_uninitialized' attribute must have a "
5420            "trivial default constructor">;
5421def err_loader_uninitialized_redeclaration
5422    : Error<"redeclaration cannot add 'loader_uninitialized' attribute">;
5423def err_loader_uninitialized_extern_decl
5424    : Error<"variable %0 cannot be declared both 'extern' and with the "
5425            "'loader_uninitialized' attribute">;
5426def err_block_extern_cant_init : Error<
5427  "'extern' variable cannot have an initializer">;
5428def warn_extern_init : Warning<"'extern' variable has an initializer">,
5429  InGroup<DiagGroup<"extern-initializer">>;
5430def err_variable_object_no_init : Error<
5431  "variable-sized object may not be initialized">;
5432def err_excess_initializers : Error<
5433  "excess elements in %select{array|vector|scalar|union|struct}0 initializer">;
5434def ext_excess_initializers : ExtWarn<
5435  "excess elements in %select{array|vector|scalar|union|struct}0 initializer">,
5436  InGroup<ExcessInitializers>;
5437def err_excess_initializers_for_sizeless_type : Error<
5438  "excess elements in initializer for indivisible sizeless type %0">;
5439def ext_excess_initializers_for_sizeless_type : ExtWarn<
5440  "excess elements in initializer for indivisible sizeless type %0">,
5441  InGroup<ExcessInitializers>;
5442def err_excess_initializers_in_char_array_initializer : Error<
5443  "excess elements in char array initializer">;
5444def ext_excess_initializers_in_char_array_initializer : ExtWarn<
5445  "excess elements in char array initializer">,
5446  InGroup<ExcessInitializers>;
5447def err_initializer_string_for_char_array_too_long : Error<
5448  "initializer-string for char array is too long">;
5449def ext_initializer_string_for_char_array_too_long : ExtWarn<
5450  "initializer-string for char array is too long">,
5451  InGroup<ExcessInitializers>;
5452def warn_missing_field_initializers : Warning<
5453  "missing field %0 initializer">,
5454  InGroup<MissingFieldInitializers>, DefaultIgnore;
5455def warn_braces_around_init : Warning<
5456  "braces around %select{scalar |}0initializer">,
5457  InGroup<DiagGroup<"braced-scalar-init">>;
5458def ext_many_braces_around_init : ExtWarn<
5459  "too many braces around %select{scalar |}0initializer">,
5460  InGroup<DiagGroup<"many-braces-around-scalar-init">>, SFINAEFailure;
5461def ext_complex_component_init : Extension<
5462  "complex initialization specifying real and imaginary components "
5463  "is an extension">, InGroup<DiagGroup<"complex-component-init">>;
5464def err_empty_scalar_initializer : Error<"scalar initializer cannot be empty">;
5465def err_empty_sizeless_initializer : Error<
5466  "initializer for sizeless type %0 cannot be empty">;
5467def warn_cxx98_compat_empty_scalar_initializer : Warning<
5468  "scalar initialized from empty initializer list is incompatible with C++98">,
5469  InGroup<CXX98Compat>, DefaultIgnore;
5470def warn_cxx98_compat_empty_sizeless_initializer : Warning<
5471  "initializing %0 from an empty initializer list is incompatible with C++98">,
5472  InGroup<CXX98Compat>, DefaultIgnore;
5473def warn_cxx98_compat_reference_list_init : Warning<
5474  "reference initialized from initializer list is incompatible with C++98">,
5475  InGroup<CXX98Compat>, DefaultIgnore;
5476def warn_cxx98_compat_initializer_list_init : Warning<
5477  "initialization of initializer_list object is incompatible with C++98">,
5478  InGroup<CXX98Compat>, DefaultIgnore;
5479def warn_cxx98_compat_ctor_list_init : Warning<
5480  "constructor call from initializer list is incompatible with C++98">,
5481  InGroup<CXX98Compat>, DefaultIgnore;
5482def err_illegal_initializer : Error<
5483  "illegal initializer (only variables can be initialized)">;
5484def err_illegal_initializer_type : Error<"illegal initializer type %0">;
5485def ext_init_list_type_narrowing : ExtWarn<
5486  "type %0 cannot be narrowed to %1 in initializer list">,
5487  InGroup<CXX11Narrowing>, DefaultError, SFINAEFailure;
5488def ext_init_list_variable_narrowing : ExtWarn<
5489  "non-constant-expression cannot be narrowed from type %0 to %1 in "
5490  "initializer list">, InGroup<CXX11Narrowing>, DefaultError, SFINAEFailure;
5491def ext_init_list_constant_narrowing : ExtWarn<
5492  "constant expression evaluates to %0 which cannot be narrowed to type %1">,
5493  InGroup<CXX11Narrowing>, DefaultError, SFINAEFailure;
5494def warn_init_list_type_narrowing : Warning<
5495  "type %0 cannot be narrowed to %1 in initializer list in C++11">,
5496  InGroup<CXX11Narrowing>, DefaultIgnore;
5497def warn_init_list_variable_narrowing : Warning<
5498  "non-constant-expression cannot be narrowed from type %0 to %1 in "
5499  "initializer list in C++11">,
5500  InGroup<CXX11Narrowing>, DefaultIgnore;
5501def warn_init_list_constant_narrowing : Warning<
5502  "constant expression evaluates to %0 which cannot be narrowed to type %1 in "
5503  "C++11">,
5504  InGroup<CXX11Narrowing>, DefaultIgnore;
5505def note_init_list_narrowing_silence : Note<
5506  "insert an explicit cast to silence this issue">;
5507def err_init_objc_class : Error<
5508  "cannot initialize Objective-C class type %0">;
5509def err_implicit_empty_initializer : Error<
5510  "initializer for aggregate with no elements requires explicit braces">;
5511def err_bitfield_has_negative_width : Error<
5512  "bit-field %0 has negative width (%1)">;
5513def err_anon_bitfield_has_negative_width : Error<
5514  "anonymous bit-field has negative width (%0)">;
5515def err_bitfield_has_zero_width : Error<"named bit-field %0 has zero width">;
5516def err_bitfield_width_exceeds_type_width : Error<
5517  "width of bit-field %0 (%1 bits) exceeds %select{width|size}2 "
5518  "of its type (%3 bit%s3)">;
5519def err_anon_bitfield_width_exceeds_type_width : Error<
5520  "width of anonymous bit-field (%0 bits) exceeds %select{width|size}1 "
5521  "of its type (%2 bit%s2)">;
5522def err_anon_bitfield_init : Error<
5523  "anonymous bit-field cannot have a default member initializer">;
5524def err_incorrect_number_of_vector_initializers : Error<
5525  "number of elements must be either one or match the size of the vector">;
5526
5527// Used by C++ which allows bit-fields that are wider than the type.
5528def warn_bitfield_width_exceeds_type_width: Warning<
5529  "width of bit-field %0 (%1 bits) exceeds the width of its type; value will "
5530  "be truncated to %2 bit%s2">, InGroup<BitFieldWidth>;
5531def warn_anon_bitfield_width_exceeds_type_width : Warning<
5532  "width of anonymous bit-field (%0 bits) exceeds width of its type; value "
5533  "will be truncated to %1 bit%s1">, InGroup<BitFieldWidth>;
5534def warn_bitfield_too_small_for_enum : Warning<
5535  "bit-field %0 is not wide enough to store all enumerators of %1">,
5536  InGroup<BitFieldEnumConversion>, DefaultIgnore;
5537def note_widen_bitfield : Note<
5538  "widen this field to %0 bits to store all values of %1">;
5539def warn_unsigned_bitfield_assigned_signed_enum : Warning<
5540  "assigning value of signed enum type %1 to unsigned bit-field %0; "
5541  "negative enumerators of enum %1 will be converted to positive values">,
5542  InGroup<BitFieldEnumConversion>, DefaultIgnore;
5543def warn_signed_bitfield_enum_conversion : Warning<
5544  "signed bit-field %0 needs an extra bit to represent the largest positive "
5545  "enumerators of %1">,
5546  InGroup<BitFieldEnumConversion>, DefaultIgnore;
5547def note_change_bitfield_sign : Note<
5548  "consider making the bitfield type %select{unsigned|signed}0">;
5549
5550def warn_missing_braces : Warning<
5551  "suggest braces around initialization of subobject">,
5552  InGroup<MissingBraces>, DefaultIgnore;
5553
5554def err_redefinition_of_label : Error<"redefinition of label %0">;
5555def err_undeclared_label_use : Error<"use of undeclared label %0">;
5556def err_goto_ms_asm_label : Error<
5557  "cannot jump from this goto statement to label %0 inside an inline assembly block">;
5558def note_goto_ms_asm_label : Note<
5559  "inline assembly label %0 declared here">;
5560def warn_unused_label : Warning<"unused label %0">,
5561  InGroup<UnusedLabel>, DefaultIgnore;
5562
5563def err_goto_into_protected_scope : Error<
5564  "cannot jump from this goto statement to its label">;
5565def ext_goto_into_protected_scope : ExtWarn<
5566  "jump from this goto statement to its label is a Microsoft extension">,
5567  InGroup<MicrosoftGoto>;
5568def warn_cxx98_compat_goto_into_protected_scope : Warning<
5569  "jump from this goto statement to its label is incompatible with C++98">,
5570  InGroup<CXX98Compat>, DefaultIgnore;
5571def err_switch_into_protected_scope : Error<
5572  "cannot jump from switch statement to this case label">;
5573def warn_cxx98_compat_switch_into_protected_scope : Warning<
5574  "jump from switch statement to this case label is incompatible with C++98">,
5575  InGroup<CXX98Compat>, DefaultIgnore;
5576def err_indirect_goto_without_addrlabel : Error<
5577  "indirect goto in function with no address-of-label expressions">;
5578def err_indirect_goto_in_protected_scope : Error<
5579  "cannot jump from this %select{indirect|asm}0 goto statement to one of its possible targets">;
5580def warn_cxx98_compat_indirect_goto_in_protected_scope : Warning<
5581  "jump from this %select{indirect|asm}0 goto statement to one of its possible targets "
5582  "is incompatible with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
5583def note_indirect_goto_target : Note<
5584  "possible target of %select{indirect|asm}0 goto statement">;
5585def note_protected_by_variable_init : Note<
5586  "jump bypasses variable initialization">;
5587def note_protected_by_variable_nontriv_destructor : Note<
5588  "jump bypasses variable with a non-trivial destructor">;
5589def note_protected_by_variable_non_pod : Note<
5590  "jump bypasses initialization of non-POD variable">;
5591def note_protected_by_cleanup : Note<
5592  "jump bypasses initialization of variable with __attribute__((cleanup))">;
5593def note_protected_by_vla_typedef : Note<
5594  "jump bypasses initialization of VLA typedef">;
5595def note_protected_by_vla_type_alias : Note<
5596  "jump bypasses initialization of VLA type alias">;
5597def note_protected_by_constexpr_if : Note<
5598  "jump enters controlled statement of constexpr if">;
5599def note_protected_by_if_available : Note<
5600  "jump enters controlled statement of if available">;
5601def note_protected_by_vla : Note<
5602  "jump bypasses initialization of variable length array">;
5603def note_protected_by_objc_fast_enumeration : Note<
5604  "jump enters Objective-C fast enumeration loop">;
5605def note_protected_by_objc_try : Note<
5606  "jump bypasses initialization of @try block">;
5607def note_protected_by_objc_catch : Note<
5608  "jump bypasses initialization of @catch block">;
5609def note_protected_by_objc_finally : Note<
5610  "jump bypasses initialization of @finally block">;
5611def note_protected_by_objc_synchronized : Note<
5612  "jump bypasses initialization of @synchronized block">;
5613def note_protected_by_objc_autoreleasepool : Note<
5614  "jump bypasses auto release push of @autoreleasepool block">;
5615def note_protected_by_cxx_try : Note<
5616  "jump bypasses initialization of try block">;
5617def note_protected_by_cxx_catch : Note<
5618  "jump bypasses initialization of catch block">;
5619def note_protected_by_seh_try : Note<
5620  "jump bypasses initialization of __try block">;
5621def note_protected_by_seh_except : Note<
5622  "jump bypasses initialization of __except block">;
5623def note_protected_by_seh_finally : Note<
5624  "jump bypasses initialization of __finally block">;
5625def note_protected_by___block : Note<
5626  "jump bypasses setup of __block variable">;
5627def note_protected_by_objc_strong_init : Note<
5628  "jump bypasses initialization of __strong variable">;
5629def note_protected_by_objc_weak_init : Note<
5630  "jump bypasses initialization of __weak variable">;
5631def note_protected_by_non_trivial_c_struct_init : Note<
5632  "jump bypasses initialization of variable of non-trivial C struct type">;
5633def note_enters_block_captures_cxx_obj : Note<
5634  "jump enters lifetime of block which captures a destructible C++ object">;
5635def note_enters_block_captures_strong : Note<
5636  "jump enters lifetime of block which strongly captures a variable">;
5637def note_enters_block_captures_weak : Note<
5638  "jump enters lifetime of block which weakly captures a variable">;
5639def note_enters_block_captures_non_trivial_c_struct : Note<
5640  "jump enters lifetime of block which captures a C struct that is non-trivial "
5641  "to destroy">;
5642def note_enters_compound_literal_scope : Note<
5643  "jump enters lifetime of a compound literal that is non-trivial to destruct">;
5644
5645def note_exits_cleanup : Note<
5646  "jump exits scope of variable with __attribute__((cleanup))">;
5647def note_exits_dtor : Note<
5648  "jump exits scope of variable with non-trivial destructor">;
5649def note_exits_temporary_dtor : Note<
5650  "jump exits scope of lifetime-extended temporary with non-trivial "
5651  "destructor">;
5652def note_exits___block : Note<
5653  "jump exits scope of __block variable">;
5654def note_exits_objc_try : Note<
5655  "jump exits @try block">;
5656def note_exits_objc_catch : Note<
5657  "jump exits @catch block">;
5658def note_exits_objc_finally : Note<
5659  "jump exits @finally block">;
5660def note_exits_objc_synchronized : Note<
5661  "jump exits @synchronized block">;
5662def note_exits_cxx_try : Note<
5663  "jump exits try block">;
5664def note_exits_cxx_catch : Note<
5665  "jump exits catch block">;
5666def note_exits_seh_try : Note<
5667  "jump exits __try block">;
5668def note_exits_seh_except : Note<
5669  "jump exits __except block">;
5670def note_exits_seh_finally : Note<
5671  "jump exits __finally block">;
5672def note_exits_objc_autoreleasepool : Note<
5673  "jump exits autoreleasepool block">;
5674def note_exits_objc_strong : Note<
5675  "jump exits scope of __strong variable">;
5676def note_exits_objc_weak : Note<
5677  "jump exits scope of __weak variable">;
5678def note_exits_block_captures_cxx_obj : Note<
5679  "jump exits lifetime of block which captures a destructible C++ object">;
5680def note_exits_block_captures_strong : Note<
5681  "jump exits lifetime of block which strongly captures a variable">;
5682def note_exits_block_captures_weak : Note<
5683  "jump exits lifetime of block which weakly captures a variable">;
5684def note_exits_block_captures_non_trivial_c_struct : Note<
5685  "jump exits lifetime of block which captures a C struct that is non-trivial "
5686  "to destroy">;
5687def note_exits_compound_literal_scope : Note<
5688  "jump exits lifetime of a compound literal that is non-trivial to destruct">;
5689
5690def err_func_returning_qualified_void : ExtWarn<
5691  "function cannot return qualified void type %0">,
5692  InGroup<DiagGroup<"qualified-void-return-type">>;
5693def err_func_returning_array_function : Error<
5694  "function cannot return %select{array|function}0 type %1">;
5695def err_field_declared_as_function : Error<"field %0 declared as a function">;
5696def err_field_incomplete_or_sizeless : Error<
5697  "field has %select{incomplete|sizeless}0 type %1">;
5698def ext_variable_sized_type_in_struct : ExtWarn<
5699  "field %0 with variable sized type %1 not at the end of a struct or class is"
5700  " a GNU extension">, InGroup<GNUVariableSizedTypeNotAtEnd>;
5701
5702def ext_c99_flexible_array_member : Extension<
5703  "flexible array members are a C99 feature">, InGroup<C99>;
5704def err_flexible_array_virtual_base : Error<
5705  "flexible array member %0 not allowed in "
5706  "%select{struct|interface|union|class|enum}1 which has a virtual base class">;
5707def err_flexible_array_empty_aggregate : Error<
5708  "flexible array member %0 not allowed in otherwise empty "
5709  "%select{struct|interface|union|class|enum}1">;
5710def err_flexible_array_has_nontrivial_dtor : Error<
5711  "flexible array member %0 of type %1 with non-trivial destruction">;
5712def ext_flexible_array_in_struct : Extension<
5713  "%0 may not be nested in a struct due to flexible array member">,
5714  InGroup<FlexibleArrayExtensions>;
5715def ext_flexible_array_in_array : Extension<
5716  "%0 may not be used as an array element due to flexible array member">,
5717  InGroup<FlexibleArrayExtensions>;
5718def err_flexible_array_init : Error<
5719  "initialization of flexible array member is not allowed">;
5720def ext_flexible_array_empty_aggregate_ms : Extension<
5721  "flexible array member %0 in otherwise empty "
5722  "%select{struct|interface|union|class|enum}1 is a Microsoft extension">,
5723  InGroup<MicrosoftFlexibleArray>;
5724def err_flexible_array_union : Error<
5725  "flexible array member %0 in a union is not allowed">;
5726def ext_flexible_array_union_ms : Extension<
5727  "flexible array member %0 in a union is a Microsoft extension">,
5728  InGroup<MicrosoftFlexibleArray>;
5729def ext_flexible_array_empty_aggregate_gnu : Extension<
5730  "flexible array member %0 in otherwise empty "
5731  "%select{struct|interface|union|class|enum}1 is a GNU extension">,
5732  InGroup<GNUEmptyStruct>;
5733def ext_flexible_array_union_gnu : Extension<
5734  "flexible array member %0 in a union is a GNU extension">, InGroup<GNUFlexibleArrayUnionMember>;
5735
5736def err_flexible_array_not_at_end : Error<
5737  "flexible array member %0 with type %1 is not at the end of"
5738  " %select{struct|interface|union|class|enum}2">;
5739def err_objc_variable_sized_type_not_at_end : Error<
5740  "field %0 with variable sized type %1 is not at the end of class">;
5741def note_next_field_declaration : Note<
5742  "next field declaration is here">;
5743def note_next_ivar_declaration : Note<
5744  "next %select{instance variable declaration|synthesized instance variable}0"
5745  " is here">;
5746def err_synthesize_variable_sized_ivar : Error<
5747  "synthesized property with variable size type %0"
5748  " requires an existing instance variable">;
5749def err_flexible_array_arc_retainable : Error<
5750  "ARC forbids flexible array members with retainable object type">;
5751def warn_variable_sized_ivar_visibility : Warning<
5752  "field %0 with variable sized type %1 is not visible to subclasses and"
5753  " can conflict with their instance variables">, InGroup<ObjCFlexibleArray>;
5754def warn_superclass_variable_sized_type_not_at_end : Warning<
5755  "field %0 can overwrite instance variable %1 with variable sized type %2"
5756  " in superclass %3">, InGroup<ObjCFlexibleArray>;
5757
5758let CategoryName = "ARC Semantic Issue" in {
5759
5760// ARC-mode diagnostics.
5761
5762let CategoryName = "ARC Weak References" in {
5763
5764def err_arc_weak_no_runtime : Error<
5765  "cannot create __weak reference because the current deployment target "
5766  "does not support weak references">;
5767def err_arc_weak_disabled : Error<
5768  "cannot create __weak reference in file using manual reference counting">;
5769def err_synthesizing_arc_weak_property_disabled : Error<
5770  "cannot synthesize weak property in file using manual reference counting">;
5771def err_synthesizing_arc_weak_property_no_runtime : Error<
5772  "cannot synthesize weak property because the current deployment target "
5773  "does not support weak references">;
5774def err_arc_unsupported_weak_class : Error<
5775  "class is incompatible with __weak references">;
5776def err_arc_weak_unavailable_assign : Error<
5777  "assignment of a weak-unavailable object to a __weak object">;
5778def err_arc_weak_unavailable_property : Error<
5779  "synthesizing __weak instance variable of type %0, which does not "
5780  "support weak references">;
5781def note_implemented_by_class : Note<
5782  "when implemented by class %0">;
5783def err_arc_convesion_of_weak_unavailable : Error<
5784  "%select{implicit conversion|cast}0 of weak-unavailable object of type %1 to"
5785  " a __weak object of type %2">;
5786
5787} // end "ARC Weak References" category
5788
5789let CategoryName = "ARC Restrictions" in {
5790
5791def err_unavailable_in_arc : Error<
5792  "%0 is unavailable in ARC">;
5793def note_arc_forbidden_type : Note<
5794  "declaration uses type that is ill-formed in ARC">;
5795def note_performs_forbidden_arc_conversion : Note<
5796  "inline function performs a conversion which is forbidden in ARC">;
5797def note_arc_init_returns_unrelated : Note<
5798  "init method must return a type related to its receiver type">;
5799def note_arc_weak_disabled : Note<
5800  "declaration uses __weak, but ARC is disabled">;
5801def note_arc_weak_no_runtime : Note<"declaration uses __weak, which "
5802  "the current deployment target does not support">;
5803def note_arc_field_with_ownership : Note<
5804  "field has non-trivial ownership qualification">;
5805
5806def err_arc_illegal_explicit_message : Error<
5807  "ARC forbids explicit message send of %0">;
5808def err_arc_unused_init_message : Error<
5809  "the result of a delegate init call must be immediately returned "
5810  "or assigned to 'self'">;
5811def err_arc_mismatched_cast : Error<
5812  "%select{implicit conversion|cast}0 of "
5813  "%select{%2|a non-Objective-C pointer type %2|a block pointer|"
5814  "an Objective-C pointer|an indirect pointer to an Objective-C pointer}1"
5815  " to %3 is disallowed with ARC">;
5816def err_arc_nolifetime_behavior : Error<
5817  "explicit ownership qualifier on cast result has no effect">;
5818def err_arc_objc_property_default_assign_on_object : Error<
5819  "ARC forbids synthesizing a property of an Objective-C object "
5820  "with unspecified ownership or storage attribute">;
5821def err_arc_illegal_selector : Error<
5822  "ARC forbids use of %0 in a @selector">;
5823def err_arc_illegal_method_def : Error<
5824  "ARC forbids %select{implementation|synthesis}0 of %1">;
5825def warn_arc_strong_pointer_objc_pointer : Warning<
5826  "method parameter of type %0 with no explicit ownership">,
5827  InGroup<DiagGroup<"explicit-ownership-type">>, DefaultIgnore;
5828
5829} // end "ARC Restrictions" category
5830
5831def err_arc_lost_method_convention : Error<
5832  "method was declared as %select{an 'alloc'|a 'copy'|an 'init'|a 'new'}0 "
5833  "method, but its implementation doesn't match because %select{"
5834  "its result type is not an object pointer|"
5835  "its result type is unrelated to its receiver type}1">;
5836def note_arc_lost_method_convention : Note<"declaration in interface">;
5837def err_arc_gained_method_convention : Error<
5838  "method implementation does not match its declaration">;
5839def note_arc_gained_method_convention : Note<
5840  "declaration in interface is not in the '%select{alloc|copy|init|new}0' "
5841  "family because %select{its result type is not an object pointer|"
5842  "its result type is unrelated to its receiver type}1">;
5843def err_typecheck_arc_assign_self : Error<
5844  "cannot assign to 'self' outside of a method in the init family">;
5845def err_typecheck_arc_assign_self_class_method : Error<
5846  "cannot assign to 'self' in a class method">;
5847def err_typecheck_arr_assign_enumeration : Error<
5848  "fast enumeration variables cannot be modified in ARC by default; "
5849  "declare the variable __strong to allow this">;
5850def err_typecheck_arc_assign_externally_retained : Error<
5851  "variable declared with 'objc_externally_retained' "
5852  "cannot be modified in ARC">;
5853def warn_arc_retained_assign : Warning<
5854  "assigning retained object to %select{weak|unsafe_unretained}0 "
5855  "%select{property|variable}1"
5856  "; object will be released after assignment">,
5857  InGroup<ARCUnsafeRetainedAssign>;
5858def warn_arc_retained_property_assign : Warning<
5859  "assigning retained object to unsafe property"
5860  "; object will be released after assignment">,
5861  InGroup<ARCUnsafeRetainedAssign>;
5862def warn_arc_literal_assign : Warning<
5863  "assigning %select{array literal|dictionary literal|numeric literal|boxed expression|<should not happen>|block literal}0"
5864  " to a weak %select{property|variable}1"
5865  "; object will be released after assignment">,
5866  InGroup<ARCUnsafeRetainedAssign>;
5867def err_arc_new_array_without_ownership : Error<
5868  "'new' cannot allocate an array of %0 with no explicit ownership">;
5869def err_arc_autoreleasing_var : Error<
5870  "%select{__block variables|global variables|fields|instance variables}0 cannot have "
5871  "__autoreleasing ownership">;
5872def err_arc_autoreleasing_capture : Error<
5873  "cannot capture __autoreleasing variable in a "
5874  "%select{block|lambda by copy}0">;
5875def err_arc_thread_ownership : Error<
5876  "thread-local variable has non-trivial ownership: type is %0">;
5877def err_arc_indirect_no_ownership : Error<
5878  "%select{pointer|reference}1 to non-const type %0 with no explicit ownership">;
5879def err_arc_array_param_no_ownership : Error<
5880  "must explicitly describe intended ownership of an object array parameter">;
5881def err_arc_pseudo_dtor_inconstant_quals : Error<
5882  "pseudo-destructor destroys object of type %0 with inconsistently-qualified "
5883  "type %1">;
5884def err_arc_init_method_unrelated_result_type : Error<
5885  "init methods must return a type related to the receiver type">;
5886def err_arc_nonlocal_writeback : Error<
5887  "passing address of %select{non-local|non-scalar}0 object to "
5888  "__autoreleasing parameter for write-back">;
5889def err_arc_method_not_found : Error<
5890  "no known %select{instance|class}1 method for selector %0">;
5891def err_arc_receiver_forward_class : Error<
5892  "receiver %0 for class message is a forward declaration">;
5893def err_arc_may_not_respond : Error<
5894  "no visible @interface for %0 declares the selector %1">;
5895def err_arc_receiver_forward_instance : Error<
5896  "receiver type %0 for instance message is a forward declaration">;
5897def warn_receiver_forward_instance : Warning<
5898  "receiver type %0 for instance message is a forward declaration">,
5899  InGroup<ForwardClassReceiver>, DefaultIgnore;
5900def err_arc_collection_forward : Error<
5901  "collection expression type %0 is a forward declaration">;
5902def err_arc_multiple_method_decl : Error<
5903  "multiple methods named %0 found with mismatched result, "
5904  "parameter type or attributes">;
5905def warn_arc_lifetime_result_type : Warning<
5906  "ARC %select{unused|__unsafe_unretained|__strong|__weak|__autoreleasing}0 "
5907  "lifetime qualifier on return type is ignored">,
5908  InGroup<IgnoredQualifiers>;
5909
5910let CategoryName = "ARC Retain Cycle" in {
5911
5912def warn_arc_retain_cycle : Warning<
5913  "capturing %0 strongly in this block is likely to lead to a retain cycle">,
5914  InGroup<ARCRetainCycles>;
5915def note_arc_retain_cycle_owner : Note<
5916  "block will be retained by %select{the captured object|an object strongly "
5917  "retained by the captured object}0">;
5918
5919} // end "ARC Retain Cycle" category
5920
5921def warn_arc_object_memaccess : Warning<
5922  "%select{destination for|source of}0 this %1 call is a pointer to "
5923  "ownership-qualified type %2">, InGroup<ARCNonPodMemAccess>;
5924
5925let CategoryName = "ARC and @properties" in {
5926
5927def err_arc_strong_property_ownership : Error<
5928  "existing instance variable %1 for strong property %0 may not be "
5929  "%select{|__unsafe_unretained||__weak}2">;
5930def err_arc_assign_property_ownership : Error<
5931  "existing instance variable %1 for property %0 with %select{unsafe_unretained|assign}2 "
5932  "attribute must be __unsafe_unretained">;
5933def err_arc_inconsistent_property_ownership : Error<
5934  "%select{|unsafe_unretained|strong|weak}1 property %0 may not also be "
5935  "declared %select{|__unsafe_unretained|__strong|__weak|__autoreleasing}2">;
5936
5937} // end "ARC and @properties" category
5938
5939def warn_block_capture_autoreleasing : Warning<
5940  "block captures an autoreleasing out-parameter, which may result in "
5941  "use-after-free bugs">,
5942  InGroup<BlockCaptureAutoReleasing>;
5943def note_declare_parameter_strong : Note<
5944  "declare the parameter __strong or capture a __block __strong variable to "
5945  "keep values alive across autorelease pools">;
5946
5947def err_arc_atomic_ownership : Error<
5948  "cannot perform atomic operation on a pointer to type %0: type has "
5949  "non-trivial ownership">;
5950
5951let CategoryName = "ARC Casting Rules" in {
5952
5953def err_arc_bridge_cast_incompatible : Error<
5954  "incompatible types casting %0 to %1 with a %select{__bridge|"
5955  "__bridge_transfer|__bridge_retained}2 cast">;
5956def err_arc_bridge_cast_wrong_kind : Error<
5957  "cast of %select{Objective-C|block|C}0 pointer type %1 to "
5958  "%select{Objective-C|block|C}2 pointer type %3 cannot use %select{__bridge|"
5959  "__bridge_transfer|__bridge_retained}4">;
5960def err_arc_cast_requires_bridge : Error<
5961  "%select{cast|implicit conversion}0 of %select{Objective-C|block|C}1 "
5962  "pointer type %2 to %select{Objective-C|block|C}3 pointer type %4 "
5963  "requires a bridged cast">;
5964def note_arc_bridge : Note<
5965  "use __bridge to convert directly (no change in ownership)">;
5966def note_arc_cstyle_bridge : Note<
5967  "use __bridge with C-style cast to convert directly (no change in ownership)">;
5968def note_arc_bridge_transfer : Note<
5969  "use %select{__bridge_transfer|CFBridgingRelease call}1 to transfer "
5970  "ownership of a +1 %0 into ARC">;
5971def note_arc_cstyle_bridge_transfer : Note<
5972  "use __bridge_transfer with C-style cast to transfer "
5973  "ownership of a +1 %0 into ARC">;
5974def note_arc_bridge_retained : Note<
5975  "use %select{__bridge_retained|CFBridgingRetain call}1 to make an "
5976  "ARC object available as a +1 %0">;
5977def note_arc_cstyle_bridge_retained : Note<
5978  "use __bridge_retained with C-style cast to make an "
5979  "ARC object available as a +1 %0">;
5980
5981} // ARC Casting category
5982
5983} // ARC category name
5984
5985def err_flexible_array_init_needs_braces : Error<
5986  "flexible array requires brace-enclosed initializer">;
5987def err_illegal_decl_array_of_functions : Error<
5988  "'%0' declared as array of functions of type %1">;
5989def err_array_incomplete_or_sizeless_type : Error<
5990  "array has %select{incomplete|sizeless}0 element type %1">;
5991def err_illegal_message_expr_incomplete_type : Error<
5992  "Objective-C message has incomplete result type %0">;
5993def err_illegal_decl_array_of_references : Error<
5994  "'%0' declared as array of references of type %1">;
5995def err_decl_negative_array_size : Error<
5996  "'%0' declared as an array with a negative size">;
5997def err_array_static_outside_prototype : Error<
5998  "%0 used in array declarator outside of function prototype">;
5999def err_array_static_not_outermost : Error<
6000  "%0 used in non-outermost array type derivation">;
6001def err_array_star_outside_prototype : Error<
6002  "star modifier used outside of function prototype">;
6003def err_illegal_decl_pointer_to_reference : Error<
6004  "'%0' declared as a pointer to a reference of type %1">;
6005def err_illegal_decl_mempointer_to_reference : Error<
6006  "'%0' declared as a member pointer to a reference of type %1">;
6007def err_illegal_decl_mempointer_to_void : Error<
6008  "'%0' declared as a member pointer to void">;
6009def err_illegal_decl_mempointer_in_nonclass : Error<
6010  "'%0' does not point into a class">;
6011def err_mempointer_in_nonclass_type : Error<
6012  "member pointer refers into non-class type %0">;
6013def err_reference_to_void : Error<"cannot form a reference to 'void'">;
6014def err_nonfunction_block_type : Error<
6015  "block pointer to non-function type is invalid">;
6016def err_return_block_has_expr : Error<"void block should not return a value">;
6017def err_block_return_missing_expr : Error<
6018  "non-void block should return a value">;
6019def err_func_def_incomplete_result : Error<
6020  "incomplete result type %0 in function definition">;
6021def err_atomic_specifier_bad_type
6022    : Error<"_Atomic cannot be applied to "
6023            "%select{incomplete |array |function |reference |atomic |qualified "
6024            "|sizeless ||integer }0type "
6025            "%1 %select{|||||||which is not trivially copyable|}0">;
6026
6027// Expressions.
6028def ext_sizeof_alignof_function_type : Extension<
6029  "invalid application of '%0' to a function type">, InGroup<PointerArith>;
6030def ext_sizeof_alignof_void_type : Extension<
6031  "invalid application of '%0' to a void type">, InGroup<PointerArith>;
6032def err_opencl_sizeof_alignof_type : Error<
6033  "invalid application of '%0' to a void type">;
6034def err_sizeof_alignof_incomplete_or_sizeless_type : Error<
6035  "invalid application of '%0' to %select{an incomplete|sizeless}1 type %2">;
6036def err_sizeof_alignof_function_type : Error<
6037  "invalid application of '%0' to a function type">;
6038def err_openmp_default_simd_align_expr : Error<
6039  "invalid application of '__builtin_omp_required_simd_align' to an expression, only type is allowed">;
6040def err_sizeof_alignof_typeof_bitfield : Error<
6041  "invalid application of '%select{sizeof|alignof|typeof}0' to bit-field">;
6042def err_alignof_member_of_incomplete_type : Error<
6043  "invalid application of 'alignof' to a field of a class still being defined">;
6044def err_vecstep_non_scalar_vector_type : Error<
6045  "'vec_step' requires built-in scalar or vector type, %0 invalid">;
6046def err_offsetof_incomplete_type : Error<
6047  "offsetof of incomplete type %0">;
6048def err_offsetof_record_type : Error<
6049  "offsetof requires struct, union, or class type, %0 invalid">;
6050def err_offsetof_array_type : Error<"offsetof requires array type, %0 invalid">;
6051def ext_offsetof_non_pod_type : ExtWarn<"offset of on non-POD type %0">,
6052  InGroup<InvalidOffsetof>;
6053def ext_offsetof_non_standardlayout_type : ExtWarn<
6054  "offset of on non-standard-layout type %0">, InGroup<InvalidOffsetof>;
6055def err_offsetof_bitfield : Error<"cannot compute offset of bit-field %0">;
6056def err_offsetof_field_of_virtual_base : Error<
6057  "invalid application of 'offsetof' to a field of a virtual base">;
6058def warn_sub_ptr_zero_size_types : Warning<
6059  "subtraction of pointers to type %0 of zero size has undefined behavior">,
6060  InGroup<PointerArith>;
6061def warn_pointer_arith_null_ptr : Warning<
6062  "performing pointer arithmetic on a null pointer has undefined behavior%select{| if the offset is nonzero}0">,
6063  InGroup<NullPointerArithmetic>, DefaultIgnore;
6064def warn_gnu_null_ptr_arith : Warning<
6065  "arithmetic on a null pointer treated as a cast from integer to pointer is a GNU extension">,
6066  InGroup<NullPointerArithmetic>, DefaultIgnore;
6067
6068def warn_floatingpoint_eq : Warning<
6069  "comparing floating point with == or != is unsafe">,
6070  InGroup<DiagGroup<"float-equal">>, DefaultIgnore;
6071
6072def warn_remainder_division_by_zero : Warning<
6073  "%select{remainder|division}0 by zero is undefined">,
6074  InGroup<DivZero>;
6075def warn_shift_lhs_negative : Warning<"shifting a negative signed value is undefined">,
6076  InGroup<DiagGroup<"shift-negative-value">>;
6077def warn_shift_negative : Warning<"shift count is negative">,
6078  InGroup<DiagGroup<"shift-count-negative">>;
6079def warn_shift_gt_typewidth : Warning<"shift count >= width of type">,
6080  InGroup<DiagGroup<"shift-count-overflow">>;
6081def warn_shift_result_gt_typewidth : Warning<
6082  "signed shift result (%0) requires %1 bits to represent, but %2 only has "
6083  "%3 bits">, InGroup<DiagGroup<"shift-overflow">>;
6084def warn_shift_result_sets_sign_bit : Warning<
6085  "signed shift result (%0) sets the sign bit of the shift expression's "
6086  "type (%1) and becomes negative">,
6087  InGroup<DiagGroup<"shift-sign-overflow">>, DefaultIgnore;
6088
6089def warn_precedence_bitwise_rel : Warning<
6090  "%0 has lower precedence than %1; %1 will be evaluated first">,
6091  InGroup<Parentheses>;
6092def note_precedence_bitwise_first : Note<
6093  "place parentheses around the %0 expression to evaluate it first">;
6094def note_precedence_silence : Note<
6095  "place parentheses around the '%0' expression to silence this warning">;
6096
6097def warn_precedence_conditional : Warning<
6098  "operator '?:' has lower precedence than '%0'; '%0' will be evaluated first">,
6099  InGroup<Parentheses>;
6100def warn_precedence_bitwise_conditional : Warning<
6101  "operator '?:' has lower precedence than '%0'; '%0' will be evaluated first">,
6102  InGroup<BitwiseConditionalParentheses>;
6103def note_precedence_conditional_first : Note<
6104  "place parentheses around the '?:' expression to evaluate it first">;
6105
6106def warn_enum_constant_in_bool_context : Warning<
6107  "converting the enum constant to a boolean">,
6108  InGroup<IntInBoolContext>, DefaultIgnore;
6109def warn_left_shift_in_bool_context : Warning<
6110  "converting the result of '<<' to a boolean; did you mean '(%0) != 0'?">,
6111  InGroup<IntInBoolContext>, DefaultIgnore;
6112def warn_logical_instead_of_bitwise : Warning<
6113  "use of logical '%0' with constant operand">,
6114  InGroup<DiagGroup<"constant-logical-operand">>;
6115def note_logical_instead_of_bitwise_change_operator : Note<
6116  "use '%0' for a bitwise operation">;
6117def note_logical_instead_of_bitwise_remove_constant : Note<
6118  "remove constant to silence this warning">;
6119
6120def warn_bitwise_op_in_bitwise_op : Warning<
6121  "'%0' within '%1'">, InGroup<BitwiseOpParentheses>, DefaultIgnore;
6122
6123def warn_logical_and_in_logical_or : Warning<
6124  "'&&' within '||'">, InGroup<LogicalOpParentheses>, DefaultIgnore;
6125
6126def warn_overloaded_shift_in_comparison :Warning<
6127  "overloaded operator %select{>>|<<}0 has higher precedence than "
6128  "comparison operator">,
6129  InGroup<OverloadedShiftOpParentheses>;
6130def note_evaluate_comparison_first :Note<
6131  "place parentheses around comparison expression to evaluate it first">;
6132
6133def warn_addition_in_bitshift : Warning<
6134  "operator '%0' has lower precedence than '%1'; "
6135  "'%1' will be evaluated first">, InGroup<ShiftOpParentheses>;
6136
6137def warn_self_assignment_builtin : Warning<
6138  "explicitly assigning value of variable of type %0 to itself">,
6139  InGroup<SelfAssignment>, DefaultIgnore;
6140def warn_self_assignment_overloaded : Warning<
6141  "explicitly assigning value of variable of type %0 to itself">,
6142  InGroup<SelfAssignmentOverloaded>, DefaultIgnore;
6143def warn_self_move : Warning<
6144  "explicitly moving variable of type %0 to itself">,
6145  InGroup<SelfMove>, DefaultIgnore;
6146
6147def warn_redundant_move_on_return : Warning<
6148  "redundant move in return statement">,
6149  InGroup<RedundantMove>, DefaultIgnore;
6150def warn_pessimizing_move_on_return : Warning<
6151  "moving a local object in a return statement prevents copy elision">,
6152  InGroup<PessimizingMove>, DefaultIgnore;
6153def warn_pessimizing_move_on_initialization : Warning<
6154  "moving a temporary object prevents copy elision">,
6155  InGroup<PessimizingMove>, DefaultIgnore;
6156def note_remove_move : Note<"remove std::move call here">;
6157
6158def warn_return_std_move : Warning<
6159  "local variable %0 will be copied despite being %select{returned|thrown}1 by name">,
6160  InGroup<ReturnStdMove>, DefaultIgnore;
6161def note_add_std_move : Note<
6162  "call 'std::move' explicitly to avoid copying">;
6163def warn_return_std_move_in_cxx11 : Warning<
6164  "prior to the resolution of a defect report against ISO C++11, "
6165  "local variable %0 would have been copied despite being returned by name, "
6166  "due to its not matching the function return type%diff{ ($ vs $)|}1,2">,
6167  InGroup<ReturnStdMoveInCXX11>, DefaultIgnore;
6168def note_add_std_move_in_cxx11 : Note<
6169  "call 'std::move' explicitly to avoid copying on older compilers">;
6170
6171def warn_string_plus_int : Warning<
6172  "adding %0 to a string does not append to the string">,
6173  InGroup<StringPlusInt>;
6174def warn_string_plus_char : Warning<
6175  "adding %0 to a string pointer does not append to the string">,
6176  InGroup<StringPlusChar>;
6177def note_string_plus_scalar_silence : Note<
6178  "use array indexing to silence this warning">;
6179
6180def warn_sizeof_array_param : Warning<
6181  "sizeof on array function parameter will return size of %0 instead of %1">,
6182  InGroup<SizeofArrayArgument>;
6183
6184def warn_sizeof_array_decay : Warning<
6185  "sizeof on pointer operation will return size of %0 instead of %1">,
6186  InGroup<SizeofArrayDecay>;
6187
6188def err_sizeof_nonfragile_interface : Error<
6189  "application of '%select{alignof|sizeof}1' to interface %0 is "
6190  "not supported on this architecture and platform">;
6191def err_atdef_nonfragile_interface : Error<
6192  "use of @defs is not supported on this architecture and platform">;
6193def err_subscript_nonfragile_interface : Error<
6194  "subscript requires size of interface %0, which is not constant for "
6195  "this architecture and platform">;
6196
6197def err_arithmetic_nonfragile_interface : Error<
6198  "arithmetic on pointer to interface %0, which is not a constant size for "
6199  "this architecture and platform">;
6200
6201def warn_deprecated_comma_subscript : Warning<
6202  "top-level comma expression in array subscript is deprecated">,
6203  InGroup<DeprecatedCommaSubscript>;
6204
6205def ext_subscript_non_lvalue : Extension<
6206  "ISO C90 does not allow subscripting non-lvalue array">;
6207def err_typecheck_subscript_value : Error<
6208  "subscripted value is not an array, pointer, or vector">;
6209def err_typecheck_subscript_not_integer : Error<
6210  "array subscript is not an integer">;
6211def err_subscript_function_type : Error<
6212  "subscript of pointer to function type %0">;
6213def err_subscript_incomplete_or_sizeless_type : Error<
6214  "subscript of pointer to %select{incomplete|sizeless}0 type %1">;
6215def err_dereference_incomplete_type : Error<
6216  "dereference of pointer to incomplete type %0">;
6217def ext_gnu_subscript_void_type : Extension<
6218  "subscript of a pointer to void is a GNU extension">, InGroup<PointerArith>;
6219def err_typecheck_member_reference_struct_union : Error<
6220  "member reference base type %0 is not a structure or union">;
6221def err_typecheck_member_reference_ivar : Error<
6222  "%0 does not have a member named %1">;
6223def err_arc_weak_ivar_access : Error<
6224  "dereferencing a __weak pointer is not allowed due to possible "
6225  "null value caused by race condition, assign it to strong variable first">;
6226def err_typecheck_member_reference_arrow : Error<
6227  "member reference type %0 is not a pointer">;
6228def err_typecheck_member_reference_suggestion : Error<
6229  "member reference type %0 is %select{a|not a}1 pointer; did you mean to use '%select{->|.}1'?">;
6230def note_typecheck_member_reference_suggestion : Note<
6231  "did you mean to use '.' instead?">;
6232def note_member_reference_arrow_from_operator_arrow : Note<
6233  "'->' applied to return value of the operator->() declared here">;
6234def err_typecheck_member_reference_type : Error<
6235  "cannot refer to type member %0 in %1 with '%select{.|->}2'">;
6236def err_typecheck_member_reference_unknown : Error<
6237  "cannot refer to member %0 in %1 with '%select{.|->}2'">;
6238def err_member_reference_needs_call : Error<
6239  "base of member reference is a function; perhaps you meant to call "
6240  "it%select{| with no arguments}0?">;
6241def warn_subscript_is_char : Warning<"array subscript is of type 'char'">,
6242  InGroup<CharSubscript>, DefaultIgnore;
6243
6244def err_typecheck_incomplete_tag : Error<"incomplete definition of type %0">;
6245def err_no_member : Error<"no member named %0 in %1">;
6246def err_no_member_overloaded_arrow : Error<
6247  "no member named %0 in %1; did you mean to use '->' instead of '.'?">;
6248
6249def err_member_not_yet_instantiated : Error<
6250  "no member %0 in %1; it has not yet been instantiated">;
6251def note_non_instantiated_member_here : Note<
6252  "not-yet-instantiated member is declared here">;
6253
6254def err_enumerator_does_not_exist : Error<
6255  "enumerator %0 does not exist in instantiation of %1">;
6256def note_enum_specialized_here : Note<
6257  "enum %0 was explicitly specialized here">;
6258
6259def err_specialization_not_primary_template : Error<
6260  "cannot reference member of primary template because deduced class "
6261  "template specialization %0 is %select{instantiated from a partial|"
6262  "an explicit}1 specialization">;
6263
6264def err_member_redeclared : Error<"class member cannot be redeclared">;
6265def ext_member_redeclared : ExtWarn<"class member cannot be redeclared">,
6266  InGroup<RedeclaredClassMember>;
6267def err_member_redeclared_in_instantiation : Error<
6268  "multiple overloads of %0 instantiate to the same signature %1">;
6269def err_member_name_of_class : Error<"member %0 has the same name as its class">;
6270def err_member_def_undefined_record : Error<
6271  "out-of-line definition of %0 from class %1 without definition">;
6272def err_member_decl_does_not_match : Error<
6273  "out-of-line %select{declaration|definition}2 of %0 "
6274  "does not match any declaration in %1">;
6275def err_friend_decl_with_def_arg_must_be_def : Error<
6276  "friend declaration specifying a default argument must be a definition">;
6277def err_friend_decl_with_def_arg_redeclared : Error<
6278  "friend declaration specifying a default argument must be the only declaration">;
6279def err_friend_decl_does_not_match : Error<
6280  "friend declaration of %0 does not match any declaration in %1">;
6281def err_member_decl_does_not_match_suggest : Error<
6282  "out-of-line %select{declaration|definition}2 of %0 "
6283  "does not match any declaration in %1; did you mean %3?">;
6284def err_member_def_does_not_match_ret_type : Error<
6285  "return type of out-of-line definition of %q0 differs from "
6286  "that in the declaration">;
6287def err_nonstatic_member_out_of_line : Error<
6288  "non-static data member defined out-of-line">;
6289def err_qualified_typedef_declarator : Error<
6290  "typedef declarator cannot be qualified">;
6291def err_qualified_param_declarator : Error<
6292  "parameter declarator cannot be qualified">;
6293def ext_out_of_line_declaration : ExtWarn<
6294  "out-of-line declaration of a member must be a definition">,
6295  InGroup<OutOfLineDeclaration>, DefaultError;
6296def err_member_extra_qualification : Error<
6297  "extra qualification on member %0">;
6298def warn_member_extra_qualification : Warning<
6299  err_member_extra_qualification.Text>, InGroup<MicrosoftExtraQualification>;
6300def warn_namespace_member_extra_qualification : Warning<
6301  "extra qualification on member %0">,
6302  InGroup<DiagGroup<"extra-qualification">>;
6303def err_member_qualification : Error<
6304  "non-friend class member %0 cannot have a qualified name">;
6305def note_member_def_close_match : Note<"member declaration nearly matches">;
6306def note_member_def_close_const_match : Note<
6307  "member declaration does not match because "
6308  "it %select{is|is not}0 const qualified">;
6309def note_member_def_close_param_match : Note<
6310  "type of %ordinal0 parameter of member declaration does not match definition"
6311  "%diff{ ($ vs $)|}1,2">;
6312def note_local_decl_close_match : Note<"local declaration nearly matches">;
6313def note_local_decl_close_param_match : Note<
6314  "type of %ordinal0 parameter of local declaration does not match definition"
6315  "%diff{ ($ vs $)|}1,2">;
6316def err_typecheck_ivar_variable_size : Error<
6317  "instance variables must have a constant size">;
6318def err_ivar_reference_type : Error<
6319  "instance variables cannot be of reference type">;
6320def err_typecheck_illegal_increment_decrement : Error<
6321  "cannot %select{decrement|increment}1 value of type %0">;
6322def err_typecheck_expect_int : Error<
6323  "used type %0 where integer is required">;
6324def err_typecheck_arithmetic_incomplete_or_sizeless_type : Error<
6325  "arithmetic on a pointer to %select{an incomplete|sizeless}0 type %1">;
6326def err_typecheck_pointer_arith_function_type : Error<
6327  "arithmetic on%select{ a|}0 pointer%select{|s}0 to%select{ the|}2 "
6328  "function type%select{|s}2 %1%select{| and %3}2">;
6329def err_typecheck_pointer_arith_void_type : Error<
6330  "arithmetic on%select{ a|}0 pointer%select{|s}0 to void">;
6331def err_typecheck_decl_incomplete_type : Error<
6332  "variable has incomplete type %0">;
6333def ext_typecheck_decl_incomplete_type : ExtWarn<
6334  "tentative definition of variable with internal linkage has incomplete non-array type %0">,
6335  InGroup<DiagGroup<"tentative-definition-incomplete-type">>;
6336def err_tentative_def_incomplete_type : Error<
6337  "tentative definition has type %0 that is never completed">;
6338def warn_tentative_incomplete_array : Warning<
6339  "tentative array definition assumed to have one element">;
6340def err_typecheck_incomplete_array_needs_initializer : Error<
6341  "definition of variable with array type needs an explicit size "
6342  "or an initializer">;
6343def err_array_init_not_init_list : Error<
6344  "array initializer must be an initializer "
6345  "list%select{| or string literal| or wide string literal}0">;
6346def err_array_init_narrow_string_into_wchar : Error<
6347  "initializing wide char array with non-wide string literal">;
6348def err_array_init_wide_string_into_char : Error<
6349  "initializing char array with wide string literal">;
6350def err_array_init_incompat_wide_string_into_wchar : Error<
6351  "initializing wide char array with incompatible wide string literal">;
6352def err_array_init_plain_string_into_char8_t : Error<
6353  "initializing 'char8_t' array with plain string literal">;
6354def note_array_init_plain_string_into_char8_t : Note<
6355  "add 'u8' prefix to form a 'char8_t' string literal">;
6356def err_array_init_utf8_string_into_char : Error<
6357  "%select{|ISO C++20 does not permit }0initialization of char array with "
6358  "UTF-8 string literal%select{ is not permitted by '-fchar8_t'|}0">;
6359def warn_cxx20_compat_utf8_string : Warning<
6360  "type of UTF-8 string literal will change from array of const char to "
6361  "array of const char8_t in C++20">, InGroup<CXX20Compat>, DefaultIgnore;
6362def note_cxx20_compat_utf8_string_remove_u8 : Note<
6363  "remove 'u8' prefix to avoid a change of behavior; "
6364  "Clang encodes unprefixed narrow string literals as UTF-8">;
6365def err_array_init_different_type : Error<
6366  "cannot initialize array %diff{of type $ with array of type $|"
6367  "with different type of array}0,1">;
6368def err_array_init_non_constant_array : Error<
6369  "cannot initialize array %diff{of type $ with non-constant array of type $|"
6370  "with different type of array}0,1">;
6371def ext_array_init_copy : Extension<
6372  "initialization of an array "
6373  "%diff{of type $ from a compound literal of type $|"
6374  "from a compound literal}0,1 is a GNU extension">, InGroup<GNUCompoundLiteralInitializer>;
6375// This is intentionally not disabled by -Wno-gnu.
6376def ext_array_init_parens : ExtWarn<
6377  "parenthesized initialization of a member array is a GNU extension">,
6378  InGroup<DiagGroup<"gnu-array-member-paren-init">>, DefaultError;
6379def warn_deprecated_string_literal_conversion : Warning<
6380  "conversion from string literal to %0 is deprecated">,
6381  InGroup<CXX11CompatDeprecatedWritableStr>;
6382def ext_deprecated_string_literal_conversion : ExtWarn<
6383  "ISO C++11 does not allow conversion from string literal to %0">,
6384  InGroup<WritableStrings>, SFINAEFailure;
6385def err_realimag_invalid_type : Error<"invalid type %0 to %1 operator">;
6386def err_typecheck_sclass_fscope : Error<
6387  "illegal storage class on file-scoped variable">;
6388def warn_standalone_specifier : Warning<"'%0' ignored on this declaration">,
6389  InGroup<MissingDeclarations>;
6390def ext_standalone_specifier : ExtWarn<"'%0' is not permitted on a declaration "
6391  "of a type">, InGroup<MissingDeclarations>;
6392def err_standalone_class_nested_name_specifier : Error<
6393  "forward declaration of %select{class|struct|interface|union|enum}0 cannot "
6394  "have a nested name specifier">;
6395def err_typecheck_sclass_func : Error<"illegal storage class on function">;
6396def err_static_block_func : Error<
6397  "function declared in block scope cannot have 'static' storage class">;
6398def err_typecheck_address_of : Error<"address of %select{bit-field"
6399  "|vector element|property expression|register variable|matrix element}0 requested">;
6400def ext_typecheck_addrof_void : Extension<
6401  "ISO C forbids taking the address of an expression of type 'void'">;
6402def err_unqualified_pointer_member_function : Error<
6403  "must explicitly qualify name of member function when taking its address">;
6404def err_invalid_form_pointer_member_function : Error<
6405  "cannot create a non-constant pointer to member function">;
6406def err_address_of_function_with_pass_object_size_params: Error<
6407  "cannot take address of function %0 because parameter %1 has "
6408  "pass_object_size attribute">;
6409def err_parens_pointer_member_function : Error<
6410  "cannot parenthesize the name of a method when forming a member pointer">;
6411def err_typecheck_invalid_lvalue_addrof_addrof_function : Error<
6412  "extra '&' taking address of overloaded function">;
6413def err_typecheck_invalid_lvalue_addrof : Error<
6414  "cannot take the address of an rvalue of type %0">;
6415def ext_typecheck_addrof_temporary : ExtWarn<
6416  "taking the address of a temporary object of type %0">,
6417  InGroup<AddressOfTemporary>, DefaultError;
6418def err_typecheck_addrof_temporary : Error<
6419  "taking the address of a temporary object of type %0">;
6420def err_typecheck_addrof_dtor : Error<
6421  "taking the address of a destructor">;
6422def err_typecheck_unary_expr : Error<
6423  "invalid argument type %0 to unary expression">;
6424def err_typecheck_indirection_requires_pointer : Error<
6425  "indirection requires pointer operand (%0 invalid)">;
6426def ext_typecheck_indirection_through_void_pointer : ExtWarn<
6427  "ISO C++ does not allow indirection on operand of type %0">,
6428  InGroup<DiagGroup<"void-ptr-dereference">>;
6429def warn_indirection_through_null : Warning<
6430  "indirection of non-volatile null pointer will be deleted, not trap">,
6431  InGroup<NullDereference>;
6432def warn_binding_null_to_reference : Warning<
6433  "binding dereferenced null pointer to reference has undefined behavior">,
6434  InGroup<NullDereference>;
6435def note_indirection_through_null : Note<
6436  "consider using __builtin_trap() or qualifying pointer with 'volatile'">;
6437def warn_pointer_indirection_from_incompatible_type : Warning<
6438  "dereference of type %1 that was reinterpret_cast from type %0 has undefined "
6439  "behavior">,
6440  InGroup<UndefinedReinterpretCast>, DefaultIgnore;
6441def warn_taking_address_of_packed_member : Warning<
6442  "taking address of packed member %0 of class or structure %q1 may result in an unaligned pointer value">,
6443  InGroup<DiagGroup<"address-of-packed-member">>;
6444
6445def err_objc_object_assignment : Error<
6446  "cannot assign to class object (%0 invalid)">;
6447def err_typecheck_invalid_operands : Error<
6448  "invalid operands to binary expression (%0 and %1)">;
6449def note_typecheck_invalid_operands_converted : Note<
6450  "%select{first|second}0 operand was implicitly converted to type %1">;
6451def err_typecheck_logical_vector_expr_gnu_cpp_restrict : Error<
6452  "logical expression with vector %select{type %1 and non-vector type %2|types"
6453  " %1 and %2}0 is only supported in C++">;
6454def err_typecheck_sub_ptr_compatible : Error<
6455  "%diff{$ and $ are not pointers to compatible types|"
6456  "pointers to incompatible types}0,1">;
6457def ext_typecheck_ordered_comparison_of_pointer_integer : ExtWarn<
6458  "ordered comparison between pointer and integer (%0 and %1)">;
6459def ext_typecheck_ordered_comparison_of_pointer_and_zero : Extension<
6460  "ordered comparison between pointer and zero (%0 and %1) is an extension">;
6461def err_typecheck_ordered_comparison_of_pointer_and_zero : Error<
6462  "ordered comparison between pointer and zero (%0 and %1)">;
6463def err_typecheck_three_way_comparison_of_pointer_and_zero : Error<
6464  "three-way comparison between pointer and zero">;
6465def ext_typecheck_compare_complete_incomplete_pointers : Extension<
6466  "pointer comparisons before C11 "
6467  "need to be between two complete or two incomplete types; "
6468  "%0 is %select{|in}2complete and "
6469  "%1 is %select{|in}3complete">,
6470  InGroup<C11>;
6471def ext_typecheck_ordered_comparison_of_function_pointers : ExtWarn<
6472  "ordered comparison of function pointers (%0 and %1)">,
6473  InGroup<DiagGroup<"ordered-compare-function-pointers">>;
6474def ext_typecheck_comparison_of_fptr_to_void : Extension<
6475  "equality comparison between function pointer and void pointer (%0 and %1)">;
6476def err_typecheck_comparison_of_fptr_to_void : Error<
6477  "equality comparison between function pointer and void pointer (%0 and %1)">;
6478def ext_typecheck_comparison_of_pointer_integer : ExtWarn<
6479  "comparison between pointer and integer (%0 and %1)">,
6480  InGroup<DiagGroup<"pointer-integer-compare">>;
6481def err_typecheck_comparison_of_pointer_integer : Error<
6482  "comparison between pointer and integer (%0 and %1)">;
6483def ext_typecheck_comparison_of_distinct_pointers : ExtWarn<
6484  "comparison of distinct pointer types%diff{ ($ and $)|}0,1">,
6485  InGroup<CompareDistinctPointerType>;
6486def ext_typecheck_cond_incompatible_operands : ExtWarn<
6487  "incompatible operand types (%0 and %1)">;
6488def err_cond_voidptr_arc : Error <
6489  "operands to conditional of types%diff{ $ and $|}0,1 are incompatible "
6490  "in ARC mode">;
6491def err_typecheck_comparison_of_distinct_pointers : Error<
6492  "comparison of distinct pointer types%diff{ ($ and $)|}0,1">;
6493def err_typecheck_op_on_nonoverlapping_address_space_pointers : Error<
6494  "%select{comparison between %diff{ ($ and $)|}0,1"
6495  "|arithmetic operation with operands of type %diff{ ($ and $)|}0,1"
6496  "|conditional operator with the second and third operands of type "
6497  "%diff{ ($ and $)|}0,1}2"
6498  " which are pointers to non-overlapping address spaces">;
6499
6500def select_arith_conv_kind : TextSubstitution<
6501  "%select{arithmetic between|bitwise operation between|comparison of|"
6502  "conditional expression between|compound assignment of}0">;
6503def warn_arith_conv_enum_float : Warning<
6504  "%sub{select_arith_conv_kind}0 "
6505  "%select{floating-point|enumeration}1 type %2 "
6506  "%plural{2:with|4:from|:and}0 "
6507  "%select{enumeration|floating-point}1 type %3">,
6508  InGroup<EnumFloatConversion>, DefaultIgnore;
6509def warn_arith_conv_enum_float_cxx20 : Warning<
6510  "%sub{select_arith_conv_kind}0 "
6511  "%select{floating-point|enumeration}1 type %2 "
6512  "%plural{2:with|4:from|:and}0 "
6513  "%select{enumeration|floating-point}1 type %3 is deprecated">,
6514  InGroup<DeprecatedEnumFloatConversion>;
6515def warn_arith_conv_mixed_enum_types : Warning<
6516  "%sub{select_arith_conv_kind}0 "
6517  "different enumeration types%diff{ ($ and $)|}1,2">,
6518  InGroup<EnumEnumConversion>, DefaultIgnore;
6519def warn_arith_conv_mixed_enum_types_cxx20 : Warning<
6520  "%sub{select_arith_conv_kind}0 "
6521  "different enumeration types%diff{ ($ and $)|}1,2 is deprecated">,
6522  InGroup<DeprecatedEnumEnumConversion>;
6523def warn_arith_conv_mixed_anon_enum_types : Warning<
6524  warn_arith_conv_mixed_enum_types.Text>,
6525  InGroup<AnonEnumEnumConversion>, DefaultIgnore;
6526def warn_arith_conv_mixed_anon_enum_types_cxx20 : Warning<
6527  warn_arith_conv_mixed_enum_types_cxx20.Text>,
6528  InGroup<DeprecatedAnonEnumEnumConversion>;
6529def warn_conditional_mixed_enum_types : Warning<
6530  warn_arith_conv_mixed_enum_types.Text>,
6531  InGroup<EnumCompareConditional>, DefaultIgnore;
6532def warn_conditional_mixed_enum_types_cxx20 : Warning<
6533  warn_arith_conv_mixed_enum_types_cxx20.Text>,
6534  InGroup<DeprecatedEnumCompareConditional>;
6535def warn_comparison_mixed_enum_types : Warning<
6536  warn_arith_conv_mixed_enum_types.Text>,
6537  InGroup<EnumCompare>;
6538def warn_comparison_mixed_enum_types_cxx20 : Warning<
6539  warn_arith_conv_mixed_enum_types_cxx20.Text>,
6540  InGroup<DeprecatedEnumCompare>;
6541def warn_comparison_of_mixed_enum_types_switch : Warning<
6542  "comparison of different enumeration types in switch statement"
6543  "%diff{ ($ and $)|}0,1">,
6544  InGroup<EnumCompareSwitch>;
6545
6546def err_typecheck_assign_const : Error<
6547  "%select{"
6548  "cannot assign to return value because function %1 returns a const value|"
6549  "cannot assign to variable %1 with const-qualified type %2|"
6550  "cannot assign to %select{non-|}1static data member %2 "
6551  "with const-qualified type %3|"
6552  "cannot assign to non-static data member within const member function %1|"
6553  "cannot assign to %select{variable %2|non-static data member %2|lvalue}1 "
6554  "with %select{|nested }3const-qualified data member %4|"
6555  "read-only variable is not assignable}0">;
6556
6557def note_typecheck_assign_const : Note<
6558  "%select{"
6559  "function %1 which returns const-qualified type %2 declared here|"
6560  "variable %1 declared const here|"
6561  "%select{non-|}1static data member %2 declared const here|"
6562  "member function %q1 is declared const here|"
6563  "%select{|nested }1data member %2 declared const here}0">;
6564
6565def warn_unsigned_always_true_comparison : Warning<
6566  "result of comparison of %select{%3|unsigned expression}0 %2 "
6567  "%select{unsigned expression|%3}0 is always %4">,
6568  InGroup<TautologicalUnsignedZeroCompare>, DefaultIgnore;
6569def warn_unsigned_enum_always_true_comparison : Warning<
6570  "result of comparison of %select{%3|unsigned enum expression}0 %2 "
6571  "%select{unsigned enum expression|%3}0 is always %4">,
6572  InGroup<TautologicalUnsignedEnumZeroCompare>, DefaultIgnore;
6573def warn_tautological_constant_compare : Warning<
6574  "result of comparison %select{%3|%1}0 %2 "
6575  "%select{%1|%3}0 is always %4">,
6576  InGroup<TautologicalTypeLimitCompare>, DefaultIgnore;
6577def warn_tautological_compare_objc_bool : Warning<
6578  "result of comparison of constant %0 with expression of type 'BOOL'"
6579  " is always %1, as the only well defined values for 'BOOL' are YES and NO">,
6580  InGroup<TautologicalObjCBoolCompare>;
6581
6582def warn_mixed_sign_comparison : Warning<
6583  "comparison of integers of different signs: %0 and %1">,
6584  InGroup<SignCompare>, DefaultIgnore;
6585def warn_out_of_range_compare : Warning<
6586  "result of comparison of %select{constant %0|true|false}1 with "
6587  "%select{expression of type %2|boolean expression}3 is always %4">,
6588  InGroup<TautologicalOutOfRangeCompare>;
6589def warn_tautological_bool_compare : Warning<warn_out_of_range_compare.Text>,
6590  InGroup<TautologicalConstantCompare>;
6591def warn_integer_constants_in_conditional_always_true : Warning<
6592  "converting the result of '?:' with integer constants to a boolean always "
6593  "evaluates to 'true'">,
6594  InGroup<TautologicalConstantCompare>;
6595def warn_left_shift_always : Warning<
6596  "converting the result of '<<' to a boolean always evaluates "
6597  "to %select{false|true}0">,
6598  InGroup<TautologicalConstantCompare>;
6599def warn_null_in_arithmetic_operation : Warning<
6600  "use of NULL in arithmetic operation">,
6601  InGroup<NullArithmetic>;
6602def warn_null_in_comparison_operation : Warning<
6603  "comparison between NULL and non-pointer "
6604  "%select{(%1 and NULL)|(NULL and %1)}0">,
6605  InGroup<NullArithmetic>;
6606def err_shift_rhs_only_vector : Error<
6607  "requested shift is a vector of type %0 but the first operand is not a "
6608  "vector (%1)">;
6609
6610def warn_logical_not_on_lhs_of_check : Warning<
6611  "logical not is only applied to the left hand side of this "
6612  "%select{comparison|bitwise operator}0">,
6613  InGroup<LogicalNotParentheses>;
6614def note_logical_not_fix : Note<
6615  "add parentheses after the '!' to evaluate the "
6616  "%select{comparison|bitwise operator}0 first">;
6617def note_logical_not_silence_with_parens : Note<
6618  "add parentheses around left hand side expression to silence this warning">;
6619
6620def err_invalid_this_use : Error<
6621  "invalid use of 'this' outside of a non-static member function">;
6622def err_this_static_member_func : Error<
6623  "'this' cannot be%select{| implicitly}0 used in a static member function "
6624  "declaration">;
6625def err_invalid_member_use_in_static_method : Error<
6626  "invalid use of member %0 in static member function">;
6627def err_invalid_qualified_function_type : Error<
6628  "%select{non-member function|static member function|deduction guide}0 "
6629  "%select{of type %2 |}1cannot have '%3' qualifier">;
6630def err_compound_qualified_function_type : Error<
6631  "%select{block pointer|pointer|reference}0 to function type %select{%2 |}1"
6632  "cannot have '%3' qualifier">;
6633def err_qualified_function_typeid : Error<
6634  "type operand %0 of 'typeid' cannot have '%1' qualifier">;
6635
6636def err_ref_qualifier_overload : Error<
6637  "cannot overload a member function %select{without a ref-qualifier|with "
6638  "ref-qualifier '&'|with ref-qualifier '&&'}0 with a member function %select{"
6639  "without a ref-qualifier|with ref-qualifier '&'|with ref-qualifier '&&'}1">;
6640
6641def err_invalid_non_static_member_use : Error<
6642  "invalid use of non-static data member %0">;
6643def err_nested_non_static_member_use : Error<
6644  "%select{call to non-static member function|use of non-static data member}0 "
6645  "%2 of %1 from nested type %3">;
6646def warn_cxx98_compat_non_static_member_use : Warning<
6647  "use of non-static data member %0 in an unevaluated context is "
6648  "incompatible with C++98">, InGroup<CXX98Compat>, DefaultIgnore;
6649def err_invalid_incomplete_type_use : Error<
6650  "invalid use of incomplete type %0">;
6651def err_builtin_func_cast_more_than_one_arg : Error<
6652  "function-style cast to a builtin type can only take one argument">;
6653def err_value_init_for_array_type : Error<
6654  "array types cannot be value-initialized">;
6655def err_init_for_function_type : Error<
6656  "cannot create object of function type %0">;
6657def warn_format_nonliteral_noargs : Warning<
6658  "format string is not a string literal (potentially insecure)">,
6659  InGroup<FormatSecurity>;
6660def warn_format_nonliteral : Warning<
6661  "format string is not a string literal">,
6662  InGroup<FormatNonLiteral>, DefaultIgnore;
6663
6664def err_unexpected_interface : Error<
6665  "unexpected interface name %0: expected expression">;
6666def err_ref_non_value : Error<"%0 does not refer to a value">;
6667def err_ref_vm_type : Error<
6668  "cannot refer to declaration with a variably modified type inside block">;
6669def err_ref_flexarray_type : Error<
6670  "cannot refer to declaration of structure variable with flexible array member "
6671  "inside block">;
6672def err_ref_array_type : Error<
6673  "cannot refer to declaration with an array type inside block">;
6674def err_property_not_found : Error<
6675  "property %0 not found on object of type %1">;
6676def err_invalid_property_name : Error<
6677  "%0 is not a valid property name (accessing an object of type %1)">;
6678def err_getter_not_found : Error<
6679  "no getter method for read from property">;
6680def err_objc_subscript_method_not_found : Error<
6681  "expected method to %select{read|write}1 %select{dictionary|array}2 element not "
6682  "found on object of type %0">;
6683def err_objc_subscript_index_type : Error<
6684  "method index parameter type %0 is not integral type">;
6685def err_objc_subscript_key_type : Error<
6686  "method key parameter type %0 is not object type">;
6687def err_objc_subscript_dic_object_type : Error<
6688  "method object parameter type %0 is not object type">;
6689def err_objc_subscript_object_type : Error<
6690  "cannot assign to this %select{dictionary|array}1 because assigning method's "
6691  "2nd parameter of type %0 is not an Objective-C pointer type">;
6692def err_objc_subscript_base_type : Error<
6693  "%select{dictionary|array}1 subscript base type %0 is not an Objective-C object">;
6694def err_objc_multiple_subscript_type_conversion : Error<
6695  "indexing expression is invalid because subscript type %0 has "
6696  "multiple type conversion functions">;
6697def err_objc_subscript_type_conversion : Error<
6698  "indexing expression is invalid because subscript type %0 is not an integral"
6699  " or Objective-C pointer type">;
6700def err_objc_subscript_pointer : Error<
6701  "indexing expression is invalid because subscript type %0 is not an"
6702  " Objective-C pointer">;
6703def err_objc_indexing_method_result_type : Error<
6704  "method for accessing %select{dictionary|array}1 element must have Objective-C"
6705  " object return type instead of %0">;
6706def err_objc_index_incomplete_class_type : Error<
6707  "Objective-C index expression has incomplete class type %0">;
6708def err_illegal_container_subscripting_op : Error<
6709  "illegal operation on Objective-C container subscripting">;
6710def err_property_not_found_forward_class : Error<
6711  "property %0 cannot be found in forward class object %1">;
6712def err_property_not_as_forward_class : Error<
6713  "property %0 refers to an incomplete Objective-C class %1 "
6714  "(with no @interface available)">;
6715def note_forward_class : Note<
6716  "forward declaration of class here">;
6717def err_duplicate_property : Error<
6718  "property has a previous declaration">;
6719def ext_gnu_void_ptr : Extension<
6720  "arithmetic on%select{ a|}0 pointer%select{|s}0 to void is a GNU extension">,
6721  InGroup<PointerArith>;
6722def ext_gnu_ptr_func_arith : Extension<
6723  "arithmetic on%select{ a|}0 pointer%select{|s}0 to%select{ the|}2 function "
6724  "type%select{|s}2 %1%select{| and %3}2 is a GNU extension">,
6725  InGroup<PointerArith>;
6726def err_readonly_message_assignment : Error<
6727  "assigning to 'readonly' return result of an Objective-C message not allowed">;
6728def ext_integer_increment_complex : Extension<
6729  "ISO C does not support '++'/'--' on complex integer type %0">;
6730def ext_integer_complement_complex : Extension<
6731  "ISO C does not support '~' for complex conjugation of %0">;
6732def err_nosetter_property_assignment : Error<
6733  "%select{assignment to readonly property|"
6734  "no setter method %1 for assignment to property}0">;
6735def err_nosetter_property_incdec : Error<
6736  "%select{%select{increment|decrement}1 of readonly property|"
6737  "no setter method %2 for %select{increment|decrement}1 of property}0">;
6738def err_nogetter_property_compound_assignment : Error<
6739  "a getter method is needed to perform a compound assignment on a property">;
6740def err_nogetter_property_incdec : Error<
6741  "no getter method %1 for %select{increment|decrement}0 of property">;
6742def err_no_subobject_property_setting : Error<
6743  "expression is not assignable">;
6744def err_qualified_objc_access : Error<
6745  "%select{property|instance variable}0 access cannot be qualified with '%1'">;
6746
6747def ext_freestanding_complex : Extension<
6748  "complex numbers are an extension in a freestanding C99 implementation">;
6749
6750// FIXME: Remove when we support imaginary.
6751def err_imaginary_not_supported : Error<"imaginary types are not supported">;
6752
6753// Obj-c expressions
6754def warn_root_inst_method_not_found : Warning<
6755  "instance method %0 is being used on 'Class' which is not in the root class">,
6756  InGroup<MethodAccess>;
6757def warn_class_method_not_found : Warning<
6758  "class method %objcclass0 not found (return type defaults to 'id')">,
6759  InGroup<MethodAccess>;
6760def warn_instance_method_on_class_found : Warning<
6761  "instance method %0 found instead of class method %1">,
6762  InGroup<MethodAccess>;
6763def warn_inst_method_not_found : Warning<
6764  "instance method %objcinstance0 not found (return type defaults to 'id')">,
6765  InGroup<MethodAccess>;
6766def warn_instance_method_not_found_with_typo : Warning<
6767  "instance method %objcinstance0 not found (return type defaults to 'id')"
6768  "; did you mean %objcinstance2?">, InGroup<MethodAccess>;
6769def warn_class_method_not_found_with_typo : Warning<
6770  "class method %objcclass0 not found (return type defaults to 'id')"
6771  "; did you mean %objcclass2?">, InGroup<MethodAccess>;
6772def err_method_not_found_with_typo : Error<
6773  "%select{instance|class}1 method %0 not found "
6774  "; did you mean %2?">;
6775def err_no_super_class_message : Error<
6776  "no @interface declaration found in class messaging of %0">;
6777def err_root_class_cannot_use_super : Error<
6778  "%0 cannot use 'super' because it is a root class">;
6779def err_invalid_receiver_to_message_super : Error<
6780  "'super' is only valid in a method body">;
6781def err_invalid_receiver_class_message : Error<
6782  "receiver type %0 is not an Objective-C class">;
6783def err_missing_open_square_message_send : Error<
6784  "missing '[' at start of message send expression">;
6785def warn_bad_receiver_type : Warning<
6786  "receiver type %0 is not 'id' or interface pointer, consider "
6787  "casting it to 'id'">,InGroup<ObjCReceiver>;
6788def err_bad_receiver_type : Error<"bad receiver type %0">;
6789def err_incomplete_receiver_type : Error<"incomplete receiver type %0">;
6790def err_unknown_receiver_suggest : Error<
6791  "unknown receiver %0; did you mean %1?">;
6792def err_objc_throw_expects_object : Error<
6793  "@throw requires an Objective-C object type (%0 invalid)">;
6794def err_objc_synchronized_expects_object : Error<
6795  "@synchronized requires an Objective-C object type (%0 invalid)">;
6796def err_rethrow_used_outside_catch : Error<
6797  "@throw (rethrow) used outside of a @catch block">;
6798def err_attribute_multiple_objc_gc : Error<
6799  "multiple garbage collection attributes specified for type">;
6800def err_catch_param_not_objc_type : Error<
6801  "@catch parameter is not a pointer to an interface type">;
6802def err_illegal_qualifiers_on_catch_parm : Error<
6803  "illegal qualifiers on @catch parameter">;
6804def err_storage_spec_on_catch_parm : Error<
6805  "@catch parameter cannot have storage specifier '%0'">;
6806def warn_register_objc_catch_parm : Warning<
6807  "'register' storage specifier on @catch parameter will be ignored">;
6808def err_qualified_objc_catch_parm : Error<
6809  "@catch parameter declarator cannot be qualified">;
6810def warn_objc_pointer_cxx_catch_fragile : Warning<
6811  "cannot catch an exception thrown with @throw in C++ in the non-unified "
6812  "exception model">, InGroup<ObjCNonUnifiedException>;
6813def err_objc_object_catch : Error<
6814  "cannot catch an Objective-C object by value">;
6815def err_incomplete_type_objc_at_encode : Error<
6816  "'@encode' of incomplete type %0">;
6817def warn_objc_circular_container : Warning<
6818  "adding %0 to %1 might cause circular dependency in container">,
6819  InGroup<DiagGroup<"objc-circular-container">>;
6820def note_objc_circular_container_declared_here : Note<"%0 declared here">;
6821def warn_objc_unsafe_perform_selector : Warning<
6822  "%0 is incompatible with selectors that return a "
6823  "%select{struct|union|vector}1 type">,
6824  InGroup<DiagGroup<"objc-unsafe-perform-selector">>;
6825def note_objc_unsafe_perform_selector_method_declared_here :  Note<
6826  "method %0 that returns %1 declared here">;
6827def err_attribute_arm_builtin_alias : Error<
6828  "'__clang_arm_builtin_alias' attribute can only be applied to an ARM builtin">;
6829def err_attribute_arm_mve_polymorphism : Error<
6830  "'__clang_arm_mve_strict_polymorphism' attribute can only be applied to an MVE/NEON vector type">;
6831
6832def warn_setter_getter_impl_required : Warning<
6833  "property %0 requires method %1 to be defined - "
6834  "use @synthesize, @dynamic or provide a method implementation "
6835  "in this class implementation">,
6836  InGroup<ObjCPropertyImpl>;
6837def warn_setter_getter_impl_required_in_category : Warning<
6838  "property %0 requires method %1 to be defined - "
6839  "use @dynamic or provide a method implementation in this category">,
6840  InGroup<ObjCPropertyImpl>;
6841def note_parameter_named_here : Note<
6842  "passing argument to parameter %0 here">;
6843def note_parameter_here : Note<
6844  "passing argument to parameter here">;
6845def note_method_return_type_change : Note<
6846  "compiler has implicitly changed method %0 return type">;
6847
6848def warn_impl_required_for_class_property : Warning<
6849  "class property %0 requires method %1 to be defined - "
6850  "use @dynamic or provide a method implementation "
6851  "in this class implementation">,
6852  InGroup<ObjCPropertyImpl>;
6853def warn_impl_required_in_category_for_class_property : Warning<
6854  "class property %0 requires method %1 to be defined - "
6855  "use @dynamic or provide a method implementation in this category">,
6856  InGroup<ObjCPropertyImpl>;
6857
6858// C++ casts
6859// These messages adhere to the TryCast pattern: %0 is an int specifying the
6860// cast type, %1 is the source type, %2 is the destination type.
6861def err_bad_reinterpret_cast_overload : Error<
6862  "reinterpret_cast cannot resolve overloaded function %0 to type %1">;
6863
6864def warn_reinterpret_different_from_static : Warning<
6865  "'reinterpret_cast' %select{from|to}3 class %0 %select{to|from}3 its "
6866  "%select{virtual base|base at non-zero offset}2 %1 behaves differently from "
6867  "'static_cast'">, InGroup<ReinterpretBaseClass>;
6868def note_reinterpret_updowncast_use_static: Note<
6869  "use 'static_cast' to adjust the pointer correctly while "
6870  "%select{upcasting|downcasting}0">;
6871
6872def err_bad_static_cast_overload : Error<
6873  "address of overloaded function %0 cannot be static_cast to type %1">;
6874
6875def err_bad_cstyle_cast_overload : Error<
6876  "address of overloaded function %0 cannot be cast to type %1">;
6877
6878
6879def err_bad_cxx_cast_generic : Error<
6880  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|"
6881  "C-style cast|functional-style cast|addrspace_cast}0 from %1 to %2 is not allowed">;
6882def err_bad_cxx_cast_unrelated_class : Error<
6883  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
6884  "functional-style cast|}0 from %1 to %2, which are not related by "
6885  "inheritance, is not allowed">;
6886def note_type_incomplete : Note<"%0 is incomplete">;
6887def err_bad_cxx_cast_rvalue : Error<
6888  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
6889  "functional-style cast|addrspace_cast}0 from rvalue to reference type %2">;
6890def err_bad_cxx_cast_bitfield : Error<
6891  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
6892  "functional-style cast|}0 from bit-field lvalue to reference type %2">;
6893def err_bad_cxx_cast_qualifiers_away : Error<
6894  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
6895  "functional-style cast|}0 from %1 to %2 casts away qualifiers">;
6896def err_bad_cxx_cast_addr_space_mismatch : Error<
6897  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|"
6898  "C-style cast|functional-style cast|addrspace_cast}0 from %1 to %2 converts between mismatching address"
6899  " spaces">;
6900def ext_bad_cxx_cast_qualifiers_away_incoherent : ExtWarn<
6901  "ISO C++ does not allow "
6902  "%select{const_cast|static_cast|reinterpret_cast|dynamic_cast|C-style cast|"
6903  "functional-style cast|}0 from %1 to %2 because it casts away qualifiers, "
6904  "even though the source and destination types are unrelated">,
6905  SFINAEFailure, InGroup<DiagGroup<"cast-qual-unrelated">>;
6906def err_bad_const_cast_dest : Error<
6907  "%select{const_cast||||C-style cast|functional-style cast|}0 to %2, "
6908  "which is not a reference, pointer-to-object, or pointer-to-data-member">;
6909def ext_cast_fn_obj : Extension<
6910  "cast between pointer-to-function and pointer-to-object is an extension">;
6911def ext_ms_cast_fn_obj : ExtWarn<
6912  "static_cast between pointer-to-function and pointer-to-object is a "
6913  "Microsoft extension">, InGroup<MicrosoftCast>;
6914def warn_cxx98_compat_cast_fn_obj : Warning<
6915  "cast between pointer-to-function and pointer-to-object is incompatible with C++98">,
6916  InGroup<CXX98CompatPedantic>, DefaultIgnore;
6917def err_bad_reinterpret_cast_small_int : Error<
6918  "cast from pointer to smaller type %2 loses information">;
6919def err_bad_cxx_cast_vector_to_scalar_different_size : Error<
6920  "%select{||reinterpret_cast||C-style cast||}0 from vector %1 "
6921  "to scalar %2 of different size">;
6922def err_bad_cxx_cast_scalar_to_vector_different_size : Error<
6923  "%select{||reinterpret_cast||C-style cast||}0 from scalar %1 "
6924  "to vector %2 of different size">;
6925def err_bad_cxx_cast_vector_to_vector_different_size : Error<
6926  "%select{||reinterpret_cast||C-style cast||}0 from vector %1 "
6927  "to vector %2 of different size">;
6928def warn_bad_cxx_cast_nested_pointer_addr_space : Warning<
6929  "%select{reinterpret_cast|C-style cast}0 from %1 to %2 "
6930  "changes address space of nested pointers">,
6931  InGroup<IncompatiblePointerTypesDiscardsQualifiers>;
6932def err_bad_lvalue_to_rvalue_cast : Error<
6933  "cannot cast from lvalue of type %1 to rvalue reference type %2; types are "
6934  "not compatible">;
6935def err_bad_rvalue_to_rvalue_cast : Error<
6936  "cannot cast from rvalue of type %1 to rvalue reference type %2; types are "
6937  "not compatible">;
6938def err_bad_static_cast_pointer_nonpointer : Error<
6939  "cannot cast from type %1 to pointer type %2">;
6940def err_bad_static_cast_member_pointer_nonmp : Error<
6941  "cannot cast from type %1 to member pointer type %2">;
6942def err_bad_cxx_cast_member_pointer_size : Error<
6943  "cannot %select{||reinterpret_cast||C-style cast||}0 from member pointer "
6944  "type %1 to member pointer type %2 of different size">;
6945def err_bad_reinterpret_cast_reference : Error<
6946  "reinterpret_cast of a %0 to %1 needs its address, which is not allowed">;
6947def warn_undefined_reinterpret_cast : Warning<
6948  "reinterpret_cast from %0 to %1 has undefined behavior">,
6949  InGroup<UndefinedReinterpretCast>, DefaultIgnore;
6950
6951// These messages don't adhere to the pattern.
6952// FIXME: Display the path somehow better.
6953def err_ambiguous_base_to_derived_cast : Error<
6954  "ambiguous cast from base %0 to derived %1:%2">;
6955def err_static_downcast_via_virtual : Error<
6956  "cannot cast %0 to %1 via virtual base %2">;
6957def err_downcast_from_inaccessible_base : Error<
6958  "cannot cast %select{private|protected}2 base class %1 to %0">;
6959def err_upcast_to_inaccessible_base : Error<
6960  "cannot cast %0 to its %select{private|protected}2 base class %1">;
6961def err_bad_dynamic_cast_not_ref_or_ptr : Error<
6962  "invalid target type %0 for dynamic_cast; target type must be a reference or pointer type to a defined class">;
6963def err_bad_dynamic_cast_not_class : Error<"%0 is not a class type">;
6964def err_bad_cast_incomplete : Error<"%0 is an incomplete type">;
6965def err_bad_dynamic_cast_not_ptr : Error<"cannot use dynamic_cast to convert from %0 to %1">;
6966def err_bad_dynamic_cast_not_polymorphic : Error<"%0 is not polymorphic">;
6967
6968// Other C++ expressions
6969def err_need_header_before_typeid : Error<
6970  "you need to include <typeinfo> before using the 'typeid' operator">;
6971def err_need_header_before_ms_uuidof : Error<
6972  "you need to include <guiddef.h> before using the '__uuidof' operator">;
6973def err_ms___leave_not_in___try : Error<
6974  "'__leave' statement not in __try block">;
6975def err_uuidof_without_guid : Error<
6976  "cannot call operator __uuidof on a type with no GUID">;
6977def err_uuidof_with_multiple_guids : Error<
6978  "cannot call operator __uuidof on a type with multiple GUIDs">;
6979def err_incomplete_typeid : Error<"'typeid' of incomplete type %0">;
6980def err_variably_modified_typeid : Error<"'typeid' of variably modified type %0">;
6981def err_static_illegal_in_new : Error<
6982  "the 'static' modifier for the array size is not legal in new expressions">;
6983def err_array_new_needs_size : Error<
6984  "array size must be specified in new expression with no initializer">;
6985def err_bad_new_type : Error<
6986  "cannot allocate %select{function|reference}1 type %0 with new">;
6987def err_new_incomplete_or_sizeless_type : Error<
6988  "allocation of %select{incomplete|sizeless}0 type %1">;
6989def err_new_array_nonconst : Error<
6990  "only the first dimension of an allocated array may have dynamic size">;
6991def err_new_array_size_unknown_from_init : Error<
6992  "cannot determine allocated array size from initializer">;
6993def err_new_array_init_args : Error<
6994  "array 'new' cannot have initialization arguments">;
6995def ext_new_paren_array_nonconst : ExtWarn<
6996  "when type is in parentheses, array cannot have dynamic size">;
6997def err_placement_new_non_placement_delete : Error<
6998  "'new' expression with placement arguments refers to non-placement "
6999  "'operator delete'">;
7000def err_array_size_not_integral : Error<
7001  "array size expression must have integral or %select{|unscoped }0"
7002  "enumeration type, not %1">;
7003def err_array_size_incomplete_type : Error<
7004  "array size expression has incomplete class type %0">;
7005def err_array_size_explicit_conversion : Error<
7006  "array size expression of type %0 requires explicit conversion to type %1">;
7007def note_array_size_conversion : Note<
7008  "conversion to %select{integral|enumeration}0 type %1 declared here">;
7009def err_array_size_ambiguous_conversion : Error<
7010  "ambiguous conversion of array size expression of type %0 to an integral or "
7011  "enumeration type">;
7012def ext_array_size_conversion : Extension<
7013  "implicit conversion from array size expression of type %0 to "
7014  "%select{integral|enumeration}1 type %2 is a C++11 extension">,
7015  InGroup<CXX11>;
7016def warn_cxx98_compat_array_size_conversion : Warning<
7017  "implicit conversion from array size expression of type %0 to "
7018  "%select{integral|enumeration}1 type %2 is incompatible with C++98">,
7019  InGroup<CXX98CompatPedantic>, DefaultIgnore;
7020def err_address_space_qualified_new : Error<
7021  "'new' cannot allocate objects of type %0 in address space '%1'">;
7022def err_address_space_qualified_delete : Error<
7023  "'delete' cannot delete objects of type %0 in address space '%1'">;
7024
7025def err_default_init_const : Error<
7026  "default initialization of an object of const type %0"
7027  "%select{| without a user-provided default constructor}1">;
7028def ext_default_init_const : ExtWarn<
7029  "default initialization of an object of const type %0"
7030  "%select{| without a user-provided default constructor}1 "
7031  "is a Microsoft extension">,
7032  InGroup<MicrosoftConstInit>;
7033def err_delete_operand : Error<"cannot delete expression of type %0">;
7034def ext_delete_void_ptr_operand : ExtWarn<
7035  "cannot delete expression with pointer-to-'void' type %0">,
7036  InGroup<DeleteIncomplete>;
7037def err_ambiguous_delete_operand : Error<
7038  "ambiguous conversion of delete expression of type %0 to a pointer">;
7039def warn_delete_incomplete : Warning<
7040  "deleting pointer to incomplete type %0 may cause undefined behavior">,
7041  InGroup<DeleteIncomplete>;
7042def err_delete_incomplete_class_type : Error<
7043  "deleting incomplete class type %0; no conversions to pointer type">;
7044def err_delete_explicit_conversion : Error<
7045  "converting delete expression from type %0 to type %1 invokes an explicit "
7046  "conversion function">;
7047def note_delete_conversion : Note<"conversion to pointer type %0">;
7048def warn_delete_array_type : Warning<
7049  "'delete' applied to a pointer-to-array type %0 treated as 'delete[]'">;
7050def warn_mismatched_delete_new : Warning<
7051  "'delete%select{|[]}0' applied to a pointer that was allocated with "
7052  "'new%select{[]|}0'; did you mean 'delete%select{[]|}0'?">,
7053  InGroup<DiagGroup<"mismatched-new-delete">>;
7054def note_allocated_here : Note<"allocated with 'new%select{[]|}0' here">;
7055def err_no_suitable_delete_member_function_found : Error<
7056  "no suitable member %0 in %1">;
7057def err_ambiguous_suitable_delete_member_function_found : Error<
7058  "multiple suitable %0 functions in %1">;
7059def warn_ambiguous_suitable_delete_function_found : Warning<
7060  "multiple suitable %0 functions for %1; no 'operator delete' function "
7061  "will be invoked if initialization throws an exception">,
7062  InGroup<DiagGroup<"ambiguous-delete">>;
7063def note_member_declared_here : Note<
7064  "member %0 declared here">;
7065def note_member_first_declared_here : Note<
7066  "member %0 first declared here">;
7067def warn_bitwise_negation_bool : Warning<
7068  "bitwise negation of a boolean expression%select{;| always evaluates to 'true';}0 "
7069  "did you mean logical negation?">,
7070  InGroup<DiagGroup<"bool-operation">>;
7071def err_decrement_bool : Error<"cannot decrement expression of type bool">;
7072def warn_increment_bool : Warning<
7073  "incrementing expression of type bool is deprecated and "
7074  "incompatible with C++17">, InGroup<DeprecatedIncrementBool>;
7075def ext_increment_bool : ExtWarn<
7076  "ISO C++17 does not allow incrementing expression of type bool">,
7077  DefaultError, InGroup<IncrementBool>;
7078def err_increment_decrement_enum : Error<
7079  "cannot %select{decrement|increment}0 expression of enum type %1">;
7080
7081def warn_deprecated_increment_decrement_volatile : Warning<
7082  "%select{decrement|increment}0 of object of volatile-qualified type %1 "
7083  "is deprecated">, InGroup<DeprecatedVolatile>;
7084def warn_deprecated_simple_assign_volatile : Warning<
7085  "use of result of assignment to object of volatile-qualified type %0 "
7086  "is deprecated">, InGroup<DeprecatedVolatile>;
7087def warn_deprecated_compound_assign_volatile : Warning<
7088  "compound assignment to object of volatile-qualified type %0 is deprecated">,
7089  InGroup<DeprecatedVolatile>;
7090def warn_deprecated_volatile_return : Warning<
7091  "volatile-qualified return type %0 is deprecated">,
7092  InGroup<DeprecatedVolatile>;
7093def warn_deprecated_volatile_param : Warning<
7094  "volatile-qualified parameter type %0 is deprecated">,
7095  InGroup<DeprecatedVolatile>;
7096def warn_deprecated_volatile_structured_binding : Warning<
7097  "volatile qualifier in structured binding declaration is deprecated">,
7098  InGroup<DeprecatedVolatile>;
7099
7100def err_catch_incomplete_ptr : Error<
7101  "cannot catch pointer to incomplete type %0">;
7102def err_catch_incomplete_ref : Error<
7103  "cannot catch reference to incomplete type %0">;
7104def err_catch_incomplete : Error<"cannot catch incomplete type %0">;
7105def err_catch_sizeless : Error<
7106  "cannot catch %select{|reference to }0sizeless type %1">;
7107def err_catch_rvalue_ref : Error<"cannot catch exceptions by rvalue reference">;
7108def err_catch_variably_modified : Error<
7109  "cannot catch variably modified type %0">;
7110def err_qualified_catch_declarator : Error<
7111  "exception declarator cannot be qualified">;
7112def err_early_catch_all : Error<"catch-all handler must come last">;
7113def err_bad_memptr_rhs : Error<
7114  "right hand operand to %0 has non-pointer-to-member type %1">;
7115def err_bad_memptr_lhs : Error<
7116  "left hand operand to %0 must be a %select{|pointer to }1class "
7117  "compatible with the right hand operand, but is %2">;
7118def err_memptr_incomplete : Error<
7119  "member pointer has incomplete base type %0">;
7120def warn_exception_caught_by_earlier_handler : Warning<
7121  "exception of type %0 will be caught by earlier handler">,
7122  InGroup<Exceptions>;
7123def note_previous_exception_handler : Note<"for type %0">;
7124def err_exceptions_disabled : Error<
7125  "cannot use '%0' with exceptions disabled">;
7126def err_objc_exceptions_disabled : Error<
7127  "cannot use '%0' with Objective-C exceptions disabled">;
7128def warn_throw_in_noexcept_func : Warning<
7129  "%0 has a non-throwing exception specification but can still throw">,
7130  InGroup<Exceptions>;
7131def note_throw_in_dtor : Note<
7132  "%select{destructor|deallocator}0 has a %select{non-throwing|implicit "
7133  "non-throwing}1 exception specification">;
7134def note_throw_in_function : Note<"function declared non-throwing here">;
7135def err_seh_try_outside_functions : Error<
7136  "cannot use SEH '__try' in blocks, captured regions, or Obj-C method decls">;
7137def err_mixing_cxx_try_seh_try : Error<
7138  "cannot use C++ 'try' in the same function as SEH '__try'">;
7139def err_seh_try_unsupported : Error<
7140  "SEH '__try' is not supported on this target">;
7141def note_conflicting_try_here : Note<
7142  "conflicting %0 here">;
7143def warn_jump_out_of_seh_finally : Warning<
7144  "jump out of __finally block has undefined behavior">,
7145  InGroup<DiagGroup<"jump-seh-finally">>;
7146def warn_non_virtual_dtor : Warning<
7147  "%0 has virtual functions but non-virtual destructor">,
7148  InGroup<NonVirtualDtor>, DefaultIgnore;
7149def warn_delete_non_virtual_dtor : Warning<
7150  "%select{delete|destructor}0 called on non-final %1 that has "
7151  "virtual functions but non-virtual destructor">,
7152  InGroup<DeleteNonAbstractNonVirtualDtor>, DefaultIgnore, ShowInSystemHeader;
7153def note_delete_non_virtual : Note<
7154  "qualify call to silence this warning">;
7155def warn_delete_abstract_non_virtual_dtor : Warning<
7156  "%select{delete|destructor}0 called on %1 that is abstract but has "
7157  "non-virtual destructor">, InGroup<DeleteAbstractNonVirtualDtor>, ShowInSystemHeader;
7158def warn_overloaded_virtual : Warning<
7159  "%q0 hides overloaded virtual %select{function|functions}1">,
7160  InGroup<OverloadedVirtual>, DefaultIgnore;
7161def note_hidden_overloaded_virtual_declared_here : Note<
7162  "hidden overloaded virtual function %q0 declared here"
7163  "%select{|: different classes%diff{ ($ vs $)|}2,3"
7164  "|: different number of parameters (%2 vs %3)"
7165  "|: type mismatch at %ordinal2 parameter%diff{ ($ vs $)|}3,4"
7166  "|: different return type%diff{ ($ vs $)|}2,3"
7167  "|: different qualifiers (%2 vs %3)"
7168  "|: different exception specifications}1">;
7169def warn_using_directive_in_header : Warning<
7170  "using namespace directive in global context in header">,
7171  InGroup<HeaderHygiene>, DefaultIgnore;
7172def warn_overaligned_type : Warning<
7173  "type %0 requires %1 bytes of alignment and the default allocator only "
7174  "guarantees %2 bytes">,
7175  InGroup<OveralignedType>, DefaultIgnore;
7176def err_aligned_allocation_unavailable : Error<
7177  "aligned %select{allocation|deallocation}0 function of type '%1' is only "
7178  "available on %2 %3 or newer">;
7179def note_silence_aligned_allocation_unavailable : Note<
7180  "if you supply your own aligned allocation functions, use "
7181  "-faligned-allocation to silence this diagnostic">;
7182
7183def err_conditional_void_nonvoid : Error<
7184  "%select{left|right}1 operand to ? is void, but %select{right|left}1 operand "
7185  "is of type %0">;
7186def err_conditional_ambiguous : Error<
7187  "conditional expression is ambiguous; "
7188  "%diff{$ can be converted to $ and vice versa|"
7189  "types can be convert to each other}0,1">;
7190def err_conditional_ambiguous_ovl : Error<
7191  "conditional expression is ambiguous; %diff{$ and $|types}0,1 "
7192  "can be converted to several common types">;
7193def err_conditional_vector_size : Error<
7194  "vector condition type %0 and result type %1 do not have the same number "
7195  "of elements">;
7196def err_conditional_vector_element_size : Error<
7197  "vector condition type %0 and result type %1 do not have elements of the "
7198  "same size">;
7199def err_conditional_vector_has_void : Error<
7200  "GNU vector conditional operand cannot be %select{void|a throw expression}0">;
7201def err_conditional_vector_operand_type
7202    : Error<"%select{enumeration|extended vector}0 type %1 is not allowed in a "
7203            "vector conditional">;
7204def err_conditional_vector_mismatched_vectors
7205    : Error<"vector operands to the vector conditional must be the same type "
7206            "%diff{($ and $)|}0,1}">;
7207
7208def err_throw_incomplete : Error<
7209  "cannot throw object of incomplete type %0">;
7210def err_throw_incomplete_ptr : Error<
7211  "cannot throw pointer to object of incomplete type %0">;
7212def err_throw_sizeless : Error<
7213  "cannot throw object of sizeless type %0">;
7214def warn_throw_underaligned_obj : Warning<
7215  "underaligned exception object thrown">,
7216  InGroup<UnderalignedExceptionObject>;
7217def note_throw_underaligned_obj : Note<
7218  "required alignment of type %0 (%1 bytes) is larger than the supported "
7219  "alignment of C++ exception objects on this target (%2 bytes)">;
7220def err_return_in_constructor_handler : Error<
7221  "return in the catch of a function try block of a constructor is illegal">;
7222def warn_cdtor_function_try_handler_mem_expr : Warning<
7223  "cannot refer to a non-static member from the handler of a "
7224  "%select{constructor|destructor}0 function try block">, InGroup<Exceptions>;
7225
7226let CategoryName = "Lambda Issue" in {
7227  def err_capture_more_than_once : Error<
7228    "%0 can appear only once in a capture list">;
7229  def err_reference_capture_with_reference_default : Error<
7230    "'&' cannot precede a capture when the capture default is '&'">;
7231  def err_copy_capture_with_copy_default : Error<
7232    "'&' must precede a capture when the capture default is '='">;
7233  def err_capture_does_not_name_variable : Error<
7234    "%0 in capture list does not name a variable">;
7235  def err_capture_non_automatic_variable : Error<
7236    "%0 cannot be captured because it does not have automatic storage "
7237    "duration">;
7238  def err_this_capture : Error<
7239    "'this' cannot be %select{implicitly |}0captured in this context">;
7240  def err_lambda_capture_anonymous_var : Error<
7241    "unnamed variable cannot be implicitly captured in a lambda expression">;
7242  def err_lambda_capture_flexarray_type : Error<
7243    "variable %0 with flexible array member cannot be captured in "
7244    "a lambda expression">;
7245  def err_lambda_impcap : Error<
7246    "variable %0 cannot be implicitly captured in a lambda with no "
7247    "capture-default specified">;
7248  def note_lambda_decl : Note<"lambda expression begins here">;
7249  def err_lambda_unevaluated_operand : Error<
7250    "lambda expression in an unevaluated operand">;
7251  def err_lambda_in_constant_expression : Error<
7252    "a lambda expression may not appear inside of a constant expression">;
7253  def err_lambda_in_invalid_context : Error<
7254    "a lambda expression cannot appear in this context">;
7255  def err_lambda_return_init_list : Error<
7256    "cannot deduce lambda return type from initializer list">;
7257  def err_lambda_capture_default_arg : Error<
7258    "lambda expression in default argument cannot capture any entity">;
7259  def err_lambda_incomplete_result : Error<
7260    "incomplete result type %0 in lambda expression">;
7261  def err_noreturn_lambda_has_return_expr : Error<
7262    "lambda declared 'noreturn' should not return">;
7263  def warn_maybe_falloff_nonvoid_lambda : Warning<
7264    "non-void lambda does not return a value in all control paths">,
7265    InGroup<ReturnType>;
7266  def warn_falloff_nonvoid_lambda : Warning<
7267    "non-void lambda does not return a value">,
7268    InGroup<ReturnType>;
7269  def err_access_lambda_capture : Error<
7270    // The ERRORs represent other special members that aren't constructors, in
7271    // hopes that someone will bother noticing and reporting if they appear
7272    "capture of variable '%0' as type %1 calls %select{private|protected}3 "
7273    "%select{default |copy |move |*ERROR* |*ERROR* |*ERROR* |}2constructor">,
7274    AccessControl;
7275  def note_lambda_to_block_conv : Note<
7276    "implicit capture of lambda object due to conversion to block pointer "
7277    "here">;
7278  def note_var_explicitly_captured_here : Note<"variable %0 is"
7279    "%select{| explicitly}1 captured here">;
7280
7281  // C++14 lambda init-captures.
7282  def warn_cxx11_compat_init_capture : Warning<
7283    "initialized lambda captures are incompatible with C++ standards "
7284    "before C++14">, InGroup<CXXPre14Compat>, DefaultIgnore;
7285  def ext_init_capture : ExtWarn<
7286    "initialized lambda captures are a C++14 extension">, InGroup<CXX14>;
7287  def err_init_capture_no_expression : Error<
7288    "initializer missing for lambda capture %0">;
7289  def err_init_capture_multiple_expressions : Error<
7290    "initializer for lambda capture %0 contains multiple expressions">;
7291  def err_init_capture_paren_braces : Error<
7292    "cannot deduce type for lambda capture %1 from "
7293    "%select{parenthesized|nested}0 initializer list">;
7294  def err_init_capture_deduction_failure : Error<
7295    "cannot deduce type for lambda capture %0 from initializer of type %2">;
7296  def err_init_capture_deduction_failure_from_init_list : Error<
7297    "cannot deduce type for lambda capture %0 from initializer list">;
7298  def warn_cxx17_compat_init_capture_pack : Warning<
7299    "initialized lambda capture packs are incompatible with C++ standards "
7300    "before C++20">, InGroup<CXXPre20Compat>, DefaultIgnore;
7301  def ext_init_capture_pack : ExtWarn<
7302    "initialized lambda pack captures are a C++20 extension">, InGroup<CXX20>;
7303
7304  // C++14 generic lambdas.
7305  def warn_cxx11_compat_generic_lambda : Warning<
7306    "generic lambdas are incompatible with C++11">,
7307    InGroup<CXXPre14Compat>, DefaultIgnore;
7308
7309  // C++17 '*this' captures.
7310  def warn_cxx14_compat_star_this_lambda_capture : Warning<
7311    "by value capture of '*this' is incompatible with C++ standards before C++17">,
7312     InGroup<CXXPre17Compat>, DefaultIgnore;
7313  def ext_star_this_lambda_capture_cxx17 : ExtWarn<
7314    "capture of '*this' by copy is a C++17 extension">, InGroup<CXX17>;
7315
7316  // C++17 parameter shadows capture
7317  def err_parameter_shadow_capture : Error<
7318    "a lambda parameter cannot shadow an explicitly captured entity">;
7319
7320  // C++20 [=, this] captures.
7321  def warn_cxx17_compat_equals_this_lambda_capture : Warning<
7322    "explicit capture of 'this' with a capture default of '=' is incompatible "
7323    "with C++ standards before C++20">, InGroup<CXXPre20Compat>, DefaultIgnore;
7324  def ext_equals_this_lambda_capture_cxx20 : ExtWarn<
7325    "explicit capture of 'this' with a capture default of '=' "
7326    "is a C++20 extension">, InGroup<CXX20>;
7327  def warn_deprecated_this_capture : Warning<
7328    "implicit capture of 'this' with a capture default of '=' is deprecated">,
7329    InGroup<DeprecatedThisCapture>, DefaultIgnore;
7330  def note_deprecated_this_capture : Note<
7331    "add an explicit capture of 'this' to capture '*this' by reference">;
7332
7333  // C++20 default constructible / assignable lambdas.
7334  def warn_cxx17_compat_lambda_def_ctor_assign : Warning<
7335    "%select{default construction|assignment}0 of lambda is incompatible with "
7336    "C++ standards before C++20">, InGroup<CXXPre20Compat>, DefaultIgnore;
7337}
7338
7339def err_return_in_captured_stmt : Error<
7340  "cannot return from %0">;
7341def err_capture_block_variable : Error<
7342  "__block variable %0 cannot be captured in a "
7343  "%select{lambda expression|captured statement}1">;
7344
7345def err_operator_arrow_circular : Error<
7346  "circular pointer delegation detected">;
7347def err_operator_arrow_depth_exceeded : Error<
7348  "use of 'operator->' on type %0 would invoke a sequence of more than %1 "
7349  "'operator->' calls">;
7350def note_operator_arrow_here : Note<
7351  "'operator->' declared here produces an object of type %0">;
7352def note_operator_arrows_suppressed : Note<
7353  "(skipping %0 'operator->'%s0 in backtrace)">;
7354def note_operator_arrow_depth : Note<
7355  "use -foperator-arrow-depth=N to increase 'operator->' limit">;
7356
7357def err_pseudo_dtor_base_not_scalar : Error<
7358  "object expression of non-scalar type %0 cannot be used in a "
7359  "pseudo-destructor expression">;
7360def ext_pseudo_dtor_on_void : ExtWarn<
7361  "pseudo-destructors on type void are a Microsoft extension">,
7362  InGroup<MicrosoftVoidPseudoDtor>;
7363def err_pseudo_dtor_type_mismatch : Error<
7364  "the type of object expression "
7365  "%diff{($) does not match the type being destroyed ($)|"
7366  "does not match the type being destroyed}0,1 "
7367  "in pseudo-destructor expression">;
7368def err_pseudo_dtor_call_with_args : Error<
7369  "call to pseudo-destructor cannot have any arguments">;
7370def err_dtor_expr_without_call : Error<
7371  "reference to %select{destructor|pseudo-destructor}0 must be called"
7372  "%select{|; did you mean to call it with no arguments?}1">;
7373def err_pseudo_dtor_destructor_non_type : Error<
7374  "%0 does not refer to a type name in pseudo-destructor expression; expected "
7375  "the name of type %1">;
7376def err_invalid_use_of_function_type : Error<
7377  "a function type is not allowed here">;
7378def err_invalid_use_of_array_type : Error<"an array type is not allowed here">;
7379def err_typecheck_bool_condition : Error<
7380  "value of type %0 is not contextually convertible to 'bool'">;
7381def err_typecheck_ambiguous_condition : Error<
7382  "conversion %diff{from $ to $|between types}0,1 is ambiguous">;
7383def err_typecheck_nonviable_condition : Error<
7384  "no viable conversion%select{%diff{ from $ to $|}1,2|"
7385  "%diff{ from returned value of type $ to function return type $|}1,2}0">;
7386def err_typecheck_nonviable_condition_incomplete : Error<
7387  "no viable conversion%diff{ from $ to incomplete type $|}0,1">;
7388def err_typecheck_deleted_function : Error<
7389  "conversion function %diff{from $ to $|between types}0,1 "
7390  "invokes a deleted function">;
7391
7392def err_expected_class_or_namespace : Error<"%0 is not a class"
7393  "%select{ or namespace|, namespace, or enumeration}1">;
7394def err_invalid_declarator_scope : Error<"cannot define or redeclare %0 here "
7395  "because namespace %1 does not enclose namespace %2">;
7396def err_invalid_declarator_global_scope : Error<
7397  "definition or redeclaration of %0 cannot name the global scope">;
7398def err_invalid_declarator_in_function : Error<
7399  "definition or redeclaration of %0 not allowed inside a function">;
7400def err_invalid_declarator_in_block : Error<
7401  "definition or redeclaration of %0 not allowed inside a block">;
7402def err_not_tag_in_scope : Error<
7403  "no %select{struct|interface|union|class|enum}0 named %1 in %2">;
7404
7405def err_no_typeid_with_fno_rtti : Error<
7406  "use of typeid requires -frtti">;
7407def err_no_dynamic_cast_with_fno_rtti : Error<
7408  "use of dynamic_cast requires -frtti">;
7409
7410def err_cannot_form_pointer_to_member_of_reference_type : Error<
7411  "cannot form a pointer-to-member to member %0 of reference type %1">;
7412def err_incomplete_object_call : Error<
7413  "incomplete type in call to object of type %0">;
7414
7415def warn_condition_is_assignment : Warning<"using the result of an "
7416  "assignment as a condition without parentheses">,
7417  InGroup<Parentheses>;
7418// Completely identical except off by default.
7419def warn_condition_is_idiomatic_assignment : Warning<"using the result "
7420  "of an assignment as a condition without parentheses">,
7421  InGroup<DiagGroup<"idiomatic-parentheses">>, DefaultIgnore;
7422def note_condition_assign_to_comparison : Note<
7423  "use '==' to turn this assignment into an equality comparison">;
7424def note_condition_or_assign_to_comparison : Note<
7425  "use '!=' to turn this compound assignment into an inequality comparison">;
7426def note_condition_assign_silence : Note<
7427  "place parentheses around the assignment to silence this warning">;
7428
7429def warn_equality_with_extra_parens : Warning<"equality comparison with "
7430  "extraneous parentheses">, InGroup<ParenthesesOnEquality>;
7431def note_equality_comparison_to_assign : Note<
7432  "use '=' to turn this equality comparison into an assignment">;
7433def note_equality_comparison_silence : Note<
7434  "remove extraneous parentheses around the comparison to silence this warning">;
7435
7436// assignment related diagnostics (also for argument passing, returning, etc).
7437// In most of these diagnostics the %2 is a value from the
7438// Sema::AssignmentAction enumeration
7439def err_typecheck_convert_incompatible : Error<
7440  "%select{%diff{assigning to $ from incompatible type $|"
7441  "assigning to type from incompatible type}0,1"
7442  "|%diff{passing $ to parameter of incompatible type $|"
7443  "passing type to parameter of incompatible type}0,1"
7444  "|%diff{returning $ from a function with incompatible result type $|"
7445  "returning type from a function with incompatible result type}0,1"
7446  "|%diff{converting $ to incompatible type $|"
7447  "converting type to incompatible type}0,1"
7448  "|%diff{initializing $ with an expression of incompatible type $|"
7449  "initializing type with an expression of incompatible type}0,1"
7450  "|%diff{sending $ to parameter of incompatible type $|"
7451  "sending type to parameter of incompatible type}0,1"
7452  "|%diff{casting $ to incompatible type $|"
7453  "casting type to incompatible type}0,1}2"
7454  "%select{|; dereference with *|"
7455  "; take the address with &|"
7456  "; remove *|"
7457  "; remove &}3"
7458  "%select{|: different classes%diff{ ($ vs $)|}5,6"
7459  "|: different number of parameters (%5 vs %6)"
7460  "|: type mismatch at %ordinal5 parameter%diff{ ($ vs $)|}6,7"
7461  "|: different return type%diff{ ($ vs $)|}5,6"
7462  "|: different qualifiers (%5 vs %6)"
7463  "|: different exception specifications}4">;
7464def err_typecheck_missing_return_type_incompatible : Error<
7465  "%diff{return type $ must match previous return type $|"
7466  "return type must match previous return type}0,1 when %select{block "
7467  "literal|lambda expression}2 has unspecified explicit return type">;
7468
7469def note_incomplete_class_and_qualified_id : Note<
7470  "conformance of forward class %0 to protocol %1 can not be confirmed">;
7471def warn_incompatible_qualified_id : Warning<
7472  "%select{%diff{assigning to $ from incompatible type $|"
7473  "assigning to type from incompatible type}0,1"
7474  "|%diff{passing $ to parameter of incompatible type $|"
7475  "passing type to parameter of incompatible type}0,1"
7476  "|%diff{returning $ from a function with incompatible result type $|"
7477  "returning type from a function with incompatible result type}0,1"
7478  "|%diff{converting $ to incompatible type $|"
7479  "converting type to incompatible type}0,1"
7480  "|%diff{initializing $ with an expression of incompatible type $|"
7481  "initializing type with an expression of incompatible type}0,1"
7482  "|%diff{sending $ to parameter of incompatible type $|"
7483  "sending type to parameter of incompatible type}0,1"
7484  "|%diff{casting $ to incompatible type $|"
7485  "casting type to incompatible type}0,1}2">;
7486def err_incompatible_qualified_id : Error<
7487  "%select{%diff{assigning to $ from incompatible type $|"
7488  "assigning to type from incompatible type}0,1"
7489  "|%diff{passing $ to parameter of incompatible type $|"
7490  "passing type to parameter of incompatible type}0,1"
7491  "|%diff{returning $ from a function with incompatible result type $|"
7492  "returning type from a function with incompatible result type}0,1"
7493  "|%diff{converting $ to incompatible type $|"
7494  "converting type to incompatible type}0,1"
7495  "|%diff{initializing $ with an expression of incompatible type $|"
7496  "initializing type with an expression of incompatible type}0,1"
7497  "|%diff{sending $ to parameter of incompatible type $|"
7498  "sending type to parameter of incompatible type}0,1"
7499  "|%diff{casting $ to incompatible type $|"
7500  "casting type to incompatible type}0,1}2">;
7501def ext_typecheck_convert_pointer_int : ExtWarn<
7502  "incompatible pointer to integer conversion "
7503  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7504  "|%diff{passing $ to parameter of type $|"
7505  "passing to parameter of different type}0,1"
7506  "|%diff{returning $ from a function with result type $|"
7507  "returning from function with different return type}0,1"
7508  "|%diff{converting $ to type $|converting between types}0,1"
7509  "|%diff{initializing $ with an expression of type $|"
7510  "initializing with expression of different type}0,1"
7511  "|%diff{sending $ to parameter of type $|"
7512  "sending to parameter of different type}0,1"
7513  "|%diff{casting $ to type $|casting between types}0,1}2"
7514  "%select{|; dereference with *|"
7515  "; take the address with &|"
7516  "; remove *|"
7517  "; remove &}3">,
7518  InGroup<IntConversion>;
7519def err_typecheck_convert_pointer_int : Error<
7520  "incompatible pointer to integer conversion "
7521  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7522  "|%diff{passing $ to parameter of type $|"
7523  "passing to parameter of different type}0,1"
7524  "|%diff{returning $ from a function with result type $|"
7525  "returning from function with different return type}0,1"
7526  "|%diff{converting $ to type $|converting between types}0,1"
7527  "|%diff{initializing $ with an expression of type $|"
7528  "initializing with expression of different type}0,1"
7529  "|%diff{sending $ to parameter of type $|"
7530  "sending to parameter of different type}0,1"
7531  "|%diff{casting $ to type $|casting between types}0,1}2"
7532  "%select{|; dereference with *|"
7533  "; take the address with &|"
7534  "; remove *|"
7535  "; remove &}3">;
7536def ext_typecheck_convert_int_pointer : ExtWarn<
7537  "incompatible integer to pointer conversion "
7538  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7539  "|%diff{passing $ to parameter of type $|"
7540  "passing to parameter of different type}0,1"
7541  "|%diff{returning $ from a function with result type $|"
7542  "returning from function with different return type}0,1"
7543  "|%diff{converting $ to type $|converting between types}0,1"
7544  "|%diff{initializing $ with an expression of type $|"
7545  "initializing with expression of different type}0,1"
7546  "|%diff{sending $ to parameter of type $|"
7547  "sending to parameter of different type}0,1"
7548  "|%diff{casting $ to type $|casting between types}0,1}2"
7549  "%select{|; dereference with *|"
7550  "; take the address with &|"
7551  "; remove *|"
7552  "; remove &}3">,
7553  InGroup<IntConversion>, SFINAEFailure;
7554def err_typecheck_convert_int_pointer : Error<
7555  "incompatible integer to pointer conversion "
7556  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7557  "|%diff{passing $ to parameter of type $|"
7558  "passing to parameter of different type}0,1"
7559  "|%diff{returning $ from a function with result type $|"
7560  "returning from function with different return type}0,1"
7561  "|%diff{converting $ to type $|converting between types}0,1"
7562  "|%diff{initializing $ with an expression of type $|"
7563  "initializing with expression of different type}0,1"
7564  "|%diff{sending $ to parameter of type $|"
7565  "sending to parameter of different type}0,1"
7566  "|%diff{casting $ to type $|casting between types}0,1}2"
7567  "%select{|; dereference with *|"
7568  "; take the address with &|"
7569  "; remove *|"
7570  "; remove &}3">;
7571def ext_typecheck_convert_pointer_void_func : Extension<
7572  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7573  "|%diff{passing $ to parameter of type $|"
7574  "passing to parameter of different type}0,1"
7575  "|%diff{returning $ from a function with result type $|"
7576  "returning from function with different return type}0,1"
7577  "|%diff{converting $ to type $|converting between types}0,1"
7578  "|%diff{initializing $ with an expression of type $|"
7579  "initializing with expression of different type}0,1"
7580  "|%diff{sending $ to parameter of type $|"
7581  "sending to parameter of different type}0,1"
7582  "|%diff{casting $ to type $|casting between types}0,1}2"
7583  " converts between void pointer and function pointer">;
7584def err_typecheck_convert_pointer_void_func : Error<
7585  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7586  "|%diff{passing $ to parameter of type $|"
7587  "passing to parameter of different type}0,1"
7588  "|%diff{returning $ from a function with result type $|"
7589  "returning from function with different return type}0,1"
7590  "|%diff{converting $ to type $|converting between types}0,1"
7591  "|%diff{initializing $ with an expression of type $|"
7592  "initializing with expression of different type}0,1"
7593  "|%diff{sending $ to parameter of type $|"
7594  "sending to parameter of different type}0,1"
7595  "|%diff{casting $ to type $|casting between types}0,1}2"
7596  " converts between void pointer and function pointer">;
7597def ext_typecheck_convert_incompatible_pointer_sign : ExtWarn<
7598  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7599  "|%diff{passing $ to parameter of type $|"
7600  "passing to parameter of different type}0,1"
7601  "|%diff{returning $ from a function with result type $|"
7602  "returning from function with different return type}0,1"
7603  "|%diff{converting $ to type $|converting between types}0,1"
7604  "|%diff{initializing $ with an expression of type $|"
7605  "initializing with expression of different type}0,1"
7606  "|%diff{sending $ to parameter of type $|"
7607  "sending to parameter of different type}0,1"
7608  "|%diff{casting $ to type $|casting between types}0,1}2"
7609  " converts between pointers to integer types with different sign">,
7610  InGroup<DiagGroup<"pointer-sign">>;
7611def err_typecheck_convert_incompatible_pointer_sign : Error<
7612  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7613  "|%diff{passing $ to parameter of type $|"
7614  "passing to parameter of different type}0,1"
7615  "|%diff{returning $ from a function with result type $|"
7616  "returning from function with different return type}0,1"
7617  "|%diff{converting $ to type $|converting between types}0,1"
7618  "|%diff{initializing $ with an expression of type $|"
7619  "initializing with expression of different type}0,1"
7620  "|%diff{sending $ to parameter of type $|"
7621  "sending to parameter of different type}0,1"
7622  "|%diff{casting $ to type $|casting between types}0,1}2"
7623  " converts between pointers to integer types with different sign">;
7624def ext_typecheck_convert_incompatible_pointer : ExtWarn<
7625  "incompatible pointer types "
7626  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7627  "|%diff{passing $ to parameter of type $|"
7628  "passing to parameter of different type}0,1"
7629  "|%diff{returning $ from a function with result type $|"
7630  "returning from function with different return type}0,1"
7631  "|%diff{converting $ to type $|converting between types}0,1"
7632  "|%diff{initializing $ with an expression of type $|"
7633  "initializing with expression of different type}0,1"
7634  "|%diff{sending $ to parameter of type $|"
7635  "sending to parameter of different type}0,1"
7636  "|%diff{casting $ to type $|casting between types}0,1}2"
7637  "%select{|; dereference with *|"
7638  "; take the address with &|"
7639  "; remove *|"
7640  "; remove &}3">,
7641  InGroup<IncompatiblePointerTypes>;
7642def err_typecheck_convert_incompatible_pointer : Error<
7643  "incompatible pointer types "
7644  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7645  "|%diff{passing $ to parameter of type $|"
7646  "passing to parameter of different type}0,1"
7647  "|%diff{returning $ from a function with result type $|"
7648  "returning from function with different return type}0,1"
7649  "|%diff{converting $ to type $|converting between types}0,1"
7650  "|%diff{initializing $ with an expression of type $|"
7651  "initializing with expression of different type}0,1"
7652  "|%diff{sending $ to parameter of type $|"
7653  "sending to parameter of different type}0,1"
7654  "|%diff{casting $ to type $|casting between types}0,1}2"
7655  "%select{|; dereference with *|"
7656  "; take the address with &|"
7657  "; remove *|"
7658  "; remove &}3">;
7659def ext_typecheck_convert_incompatible_function_pointer : ExtWarn<
7660  "incompatible function pointer types "
7661  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7662  "|%diff{passing $ to parameter of type $|"
7663  "passing to parameter of different type}0,1"
7664  "|%diff{returning $ from a function with result type $|"
7665  "returning from function with different return type}0,1"
7666  "|%diff{converting $ to type $|converting between types}0,1"
7667  "|%diff{initializing $ with an expression of type $|"
7668  "initializing with expression of different type}0,1"
7669  "|%diff{sending $ to parameter of type $|"
7670  "sending to parameter of different type}0,1"
7671  "|%diff{casting $ to type $|casting between types}0,1}2"
7672  "%select{|; dereference with *|"
7673  "; take the address with &|"
7674  "; remove *|"
7675  "; remove &}3">,
7676  InGroup<IncompatibleFunctionPointerTypes>;
7677def err_typecheck_convert_incompatible_function_pointer : Error<
7678  "incompatible function pointer types "
7679  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7680  "|%diff{passing $ to parameter of type $|"
7681  "passing to parameter of different type}0,1"
7682  "|%diff{returning $ from a function with result type $|"
7683  "returning from function with different return type}0,1"
7684  "|%diff{converting $ to type $|converting between types}0,1"
7685  "|%diff{initializing $ with an expression of type $|"
7686  "initializing with expression of different type}0,1"
7687  "|%diff{sending $ to parameter of type $|"
7688  "sending to parameter of different type}0,1"
7689  "|%diff{casting $ to type $|casting between types}0,1}2"
7690  "%select{|; dereference with *|"
7691  "; take the address with &|"
7692  "; remove *|"
7693  "; remove &}3">;
7694def ext_typecheck_convert_discards_qualifiers : ExtWarn<
7695  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7696  "|%diff{passing $ to parameter of type $|"
7697  "passing to parameter of different type}0,1"
7698  "|%diff{returning $ from a function with result type $|"
7699  "returning from function with different return type}0,1"
7700  "|%diff{converting $ to type $|converting between types}0,1"
7701  "|%diff{initializing $ with an expression of type $|"
7702  "initializing with expression of different type}0,1"
7703  "|%diff{sending $ to parameter of type $|"
7704  "sending to parameter of different type}0,1"
7705  "|%diff{casting $ to type $|casting between types}0,1}2"
7706  " discards qualifiers">,
7707  InGroup<IncompatiblePointerTypesDiscardsQualifiers>;
7708def err_typecheck_convert_discards_qualifiers : Error<
7709  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7710  "|%diff{passing $ to parameter of type $|"
7711  "passing to parameter of different type}0,1"
7712  "|%diff{returning $ from a function with result type $|"
7713  "returning from function with different return type}0,1"
7714  "|%diff{converting $ to type $|converting between types}0,1"
7715  "|%diff{initializing $ with an expression of type $|"
7716  "initializing with expression of different type}0,1"
7717  "|%diff{sending $ to parameter of type $|"
7718  "sending to parameter of different type}0,1"
7719  "|%diff{casting $ to type $|casting between types}0,1}2"
7720  " discards qualifiers">;
7721def ext_nested_pointer_qualifier_mismatch : ExtWarn<
7722  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7723  "|%diff{passing $ to parameter of type $|"
7724  "passing to parameter of different type}0,1"
7725  "|%diff{returning $ from a function with result type $|"
7726  "returning from function with different return type}0,1"
7727  "|%diff{converting $ to type $|converting between types}0,1"
7728  "|%diff{initializing $ with an expression of type $|"
7729  "initializing with expression of different type}0,1"
7730  "|%diff{sending $ to parameter of type $|"
7731  "sending to parameter of different type}0,1"
7732  "|%diff{casting $ to type $|casting between types}0,1}2"
7733  " discards qualifiers in nested pointer types">,
7734  InGroup<IncompatiblePointerTypesDiscardsQualifiers>;
7735def err_nested_pointer_qualifier_mismatch : Error<
7736  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7737  "|%diff{passing $ to parameter of type $|"
7738  "passing to parameter of different type}0,1"
7739  "|%diff{returning $ from a function with result type $|"
7740  "returning from function with different return type}0,1"
7741  "|%diff{converting $ to type $|converting between types}0,1"
7742  "|%diff{initializing $ with an expression of type $|"
7743  "initializing with expression of different type}0,1"
7744  "|%diff{sending $ to parameter of type $|"
7745  "sending to parameter of different type}0,1"
7746  "|%diff{casting $ to type $|casting between types}0,1}2"
7747  " discards qualifiers in nested pointer types">;
7748def warn_incompatible_vectors : Warning<
7749  "incompatible vector types "
7750  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7751  "|%diff{passing $ to parameter of type $|"
7752  "passing to parameter of different type}0,1"
7753  "|%diff{returning $ from a function with result type $|"
7754  "returning from function with different return type}0,1"
7755  "|%diff{converting $ to type $|converting between types}0,1"
7756  "|%diff{initializing $ with an expression of type $|"
7757  "initializing with expression of different type}0,1"
7758  "|%diff{sending $ to parameter of type $|"
7759  "sending to parameter of different type}0,1"
7760  "|%diff{casting $ to type $|casting between types}0,1}2">,
7761  InGroup<VectorConversion>, DefaultIgnore;
7762def err_incompatible_vectors : Error<
7763  "incompatible vector types "
7764  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7765  "|%diff{passing $ to parameter of type $|"
7766  "passing to parameter of different type}0,1"
7767  "|%diff{returning $ from a function with result type $|"
7768  "returning from function with different return type}0,1"
7769  "|%diff{converting $ to type $|converting between types}0,1"
7770  "|%diff{initializing $ with an expression of type $|"
7771  "initializing with expression of different type}0,1"
7772  "|%diff{sending $ to parameter of type $|"
7773  "sending to parameter of different type}0,1"
7774  "|%diff{casting $ to type $|casting between types}0,1}2">;
7775def err_int_to_block_pointer : Error<
7776  "invalid block pointer conversion "
7777  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7778  "|%diff{passing $ to parameter of type $|"
7779  "passing to parameter of different type}0,1"
7780  "|%diff{returning $ from a function with result type $|"
7781  "returning from function with different return type}0,1"
7782  "|%diff{converting $ to type $|converting between types}0,1"
7783  "|%diff{initializing $ with an expression of type $|"
7784  "initializing with expression of different type}0,1"
7785  "|%diff{sending $ to parameter of type $|"
7786  "sending to parameter of different type}0,1"
7787  "|%diff{casting $ to type $|casting between types}0,1}2">;
7788def err_typecheck_convert_incompatible_block_pointer : Error<
7789  "incompatible block pointer types "
7790  "%select{%diff{assigning to $ from $|assigning to different types}0,1"
7791  "|%diff{passing $ to parameter of type $|"
7792  "passing to parameter of different type}0,1"
7793  "|%diff{returning $ from a function with result type $|"
7794  "returning from function with different return type}0,1"
7795  "|%diff{converting $ to type $|converting between types}0,1"
7796  "|%diff{initializing $ with an expression of type $|"
7797  "initializing with expression of different type}0,1"
7798  "|%diff{sending $ to parameter of type $|"
7799  "sending to parameter of different type}0,1"
7800  "|%diff{casting $ to type $|casting between types}0,1}2">;
7801def err_typecheck_incompatible_address_space : Error<
7802  "%select{%diff{assigning $ to $|assigning to different types}1,0"
7803  "|%diff{passing $ to parameter of type $|"
7804  "passing to parameter of different type}0,1"
7805  "|%diff{returning $ from a function with result type $|"
7806  "returning from function with different return type}0,1"
7807  "|%diff{converting $ to type $|converting between types}0,1"
7808  "|%diff{initializing $ with an expression of type $|"
7809  "initializing with expression of different type}0,1"
7810  "|%diff{sending $ to parameter of type $|"
7811  "sending to parameter of different type}0,1"
7812  "|%diff{casting $ to type $|casting between types}0,1}2"
7813  " changes address space of pointer">;
7814def err_typecheck_incompatible_nested_address_space : Error<
7815  "%select{%diff{assigning $ to $|assigning to different types}1,0"
7816  "|%diff{passing $ to parameter of type $|"
7817  "passing to parameter of different type}0,1"
7818  "|%diff{returning $ from a function with result type $|"
7819  "returning from function with different return type}0,1"
7820  "|%diff{converting $ to type $|converting between types}0,1"
7821  "|%diff{initializing $ with an expression of type $|"
7822  "initializing with expression of different type}0,1"
7823  "|%diff{sending $ to parameter of type $|"
7824  "sending to parameter of different type}0,1"
7825  "|%diff{casting $ to type $|casting between types}0,1}2"
7826  " changes address space of nested pointer">;
7827def err_typecheck_incompatible_ownership : Error<
7828  "%select{%diff{assigning $ to $|assigning to different types}1,0"
7829  "|%diff{passing $ to parameter of type $|"
7830  "passing to parameter of different type}0,1"
7831  "|%diff{returning $ from a function with result type $|"
7832  "returning from function with different return type}0,1"
7833  "|%diff{converting $ to type $|converting between types}0,1"
7834  "|%diff{initializing $ with an expression of type $|"
7835  "initializing with expression of different type}0,1"
7836  "|%diff{sending $ to parameter of type $|"
7837  "sending to parameter of different type}0,1"
7838  "|%diff{casting $ to type $|casting between types}0,1}2"
7839  " changes retain/release properties of pointer">;
7840def err_typecheck_comparison_of_distinct_blocks : Error<
7841  "comparison of distinct block types%diff{ ($ and $)|}0,1">;
7842
7843def err_typecheck_array_not_modifiable_lvalue : Error<
7844  "array type %0 is not assignable">;
7845def err_typecheck_non_object_not_modifiable_lvalue : Error<
7846  "non-object type %0 is not assignable">;
7847def err_typecheck_expression_not_modifiable_lvalue : Error<
7848  "expression is not assignable">;
7849def err_typecheck_incomplete_type_not_modifiable_lvalue : Error<
7850  "incomplete type %0 is not assignable">;
7851def err_typecheck_lvalue_casts_not_supported : Error<
7852  "assignment to cast is illegal, lvalue casts are not supported">;
7853
7854def err_typecheck_duplicate_vector_components_not_mlvalue : Error<
7855  "vector is not assignable (contains duplicate components)">;
7856def err_block_decl_ref_not_modifiable_lvalue : Error<
7857  "variable is not assignable (missing __block type specifier)">;
7858def err_lambda_decl_ref_not_modifiable_lvalue : Error<
7859  "cannot assign to a variable captured by copy in a non-mutable lambda">;
7860def err_typecheck_call_not_function : Error<
7861  "called object type %0 is not a function or function pointer">;
7862def err_call_incomplete_return : Error<
7863  "calling function with incomplete return type %0">;
7864def err_call_function_incomplete_return : Error<
7865  "calling %0 with incomplete return type %1">;
7866def err_call_incomplete_argument : Error<
7867  "argument type %0 is incomplete">;
7868def err_typecheck_call_too_few_args : Error<
7869  "too few %select{|||execution configuration }0arguments to "
7870  "%select{function|block|method|kernel function}0 call, "
7871  "expected %1, have %2">;
7872def err_typecheck_call_too_few_args_one : Error<
7873  "too few %select{|||execution configuration }0arguments to "
7874  "%select{function|block|method|kernel function}0 call, "
7875  "single argument %1 was not specified">;
7876def err_typecheck_call_too_few_args_at_least : Error<
7877  "too few %select{|||execution configuration }0arguments to "
7878  "%select{function|block|method|kernel function}0 call, "
7879  "expected at least %1, have %2">;
7880def err_typecheck_call_too_few_args_at_least_one : Error<
7881  "too few %select{|||execution configuration }0arguments to "
7882  "%select{function|block|method|kernel function}0 call, "
7883  "at least argument %1 must be specified">;
7884def err_typecheck_call_too_few_args_suggest : Error<
7885  "too few %select{|||execution configuration }0arguments to "
7886  "%select{function|block|method|kernel function}0 call, "
7887  "expected %1, have %2; did you mean %3?">;
7888def err_typecheck_call_too_few_args_at_least_suggest : Error<
7889  "too few %select{|||execution configuration }0arguments to "
7890  "%select{function|block|method|kernel function}0 call, "
7891  "expected at least %1, have %2; did you mean %3?">;
7892def err_typecheck_call_too_many_args : Error<
7893  "too many %select{|||execution configuration }0arguments to "
7894  "%select{function|block|method|kernel function}0 call, "
7895  "expected %1, have %2">;
7896def err_typecheck_call_too_many_args_one : Error<
7897  "too many %select{|||execution configuration }0arguments to "
7898  "%select{function|block|method|kernel function}0 call, "
7899  "expected single argument %1, have %2 arguments">;
7900def err_typecheck_call_too_many_args_at_most : Error<
7901  "too many %select{|||execution configuration }0arguments to "
7902  "%select{function|block|method|kernel function}0 call, "
7903  "expected at most %1, have %2">;
7904def err_typecheck_call_too_many_args_at_most_one : Error<
7905  "too many %select{|||execution configuration }0arguments to "
7906  "%select{function|block|method|kernel function}0 call, "
7907  "expected at most single argument %1, have %2 arguments">;
7908def err_typecheck_call_too_many_args_suggest : Error<
7909  "too many %select{|||execution configuration }0arguments to "
7910  "%select{function|block|method|kernel function}0 call, "
7911  "expected %1, have %2; did you mean %3?">;
7912def err_typecheck_call_too_many_args_at_most_suggest : Error<
7913  "too many %select{|||execution configuration }0arguments to "
7914  "%select{function|block|method|kernel function}0 call, "
7915  "expected at most %1, have %2; did you mean %3?">;
7916
7917def err_arc_typecheck_convert_incompatible_pointer : Error<
7918  "incompatible pointer types passing retainable parameter of type %0"
7919  "to a CF function expecting %1 type">;
7920
7921def err_builtin_fn_use : Error<"builtin functions must be directly called">;
7922
7923def warn_call_wrong_number_of_arguments : Warning<
7924  "too %select{few|many}0 arguments in call to %1">;
7925def err_atomic_builtin_must_be_pointer : Error<
7926  "address argument to atomic builtin must be a pointer (%0 invalid)">;
7927def err_atomic_builtin_must_be_pointer_intptr : Error<
7928  "address argument to atomic builtin must be a pointer to integer or pointer"
7929  " (%0 invalid)">;
7930def err_atomic_builtin_cannot_be_const : Error<
7931  "address argument to atomic builtin cannot be const-qualified (%0 invalid)">;
7932def err_atomic_builtin_must_be_pointer_intfltptr : Error<
7933  "address argument to atomic builtin must be a pointer to integer,"
7934  " floating-point or pointer (%0 invalid)">;
7935def err_atomic_builtin_pointer_size : Error<
7936  "address argument to atomic builtin must be a pointer to 1,2,4,8 or 16 byte "
7937  "type (%0 invalid)">;
7938def err_atomic_exclusive_builtin_pointer_size : Error<
7939  "address argument to load or store exclusive builtin must be a pointer to"
7940  " 1,2,4 or 8 byte type (%0 invalid)">;
7941def err_atomic_builtin_ext_int_size : Error<
7942  "Atomic memory operand must have a power-of-two size">;
7943def err_atomic_builtin_ext_int_prohibit : Error<
7944  "argument to atomic builtin of type '_ExtInt' is not supported">;
7945def err_atomic_op_needs_atomic : Error<
7946  "address argument to atomic operation must be a pointer to _Atomic "
7947  "type (%0 invalid)">;
7948def err_atomic_op_needs_non_const_atomic : Error<
7949  "address argument to atomic operation must be a pointer to non-%select{const|constant}0 _Atomic "
7950  "type (%1 invalid)">;
7951def err_atomic_op_needs_non_const_pointer : Error<
7952  "address argument to atomic operation must be a pointer to non-const "
7953  "type (%0 invalid)">;
7954def err_atomic_op_needs_trivial_copy : Error<
7955  "address argument to atomic operation must be a pointer to a "
7956  "trivially-copyable type (%0 invalid)">;
7957def err_atomic_op_needs_atomic_int_or_ptr : Error<
7958  "address argument to atomic operation must be a pointer to %select{|atomic }0"
7959  "integer or pointer (%1 invalid)">;
7960def err_atomic_op_needs_atomic_int : Error<
7961  "address argument to atomic operation must be a pointer to "
7962  "%select{|atomic }0integer (%1 invalid)">;
7963def warn_atomic_op_has_invalid_memory_order : Warning<
7964  "memory order argument to atomic operation is invalid">,
7965  InGroup<DiagGroup<"atomic-memory-ordering">>;
7966def err_atomic_op_has_invalid_synch_scope : Error<
7967  "synchronization scope argument to atomic operation is invalid">;
7968def warn_atomic_implicit_seq_cst : Warning<
7969  "implicit use of sequentially-consistent atomic may incur stronger memory barriers than necessary">,
7970  InGroup<DiagGroup<"atomic-implicit-seq-cst">>, DefaultIgnore;
7971
7972def err_overflow_builtin_must_be_int : Error<
7973  "operand argument to overflow builtin must be an integer (%0 invalid)">;
7974def err_overflow_builtin_must_be_ptr_int : Error<
7975  "result argument to overflow builtin must be a pointer "
7976  "to a non-const integer (%0 invalid)">;
7977def err_overflow_builtin_ext_int_max_size : Error<
7978  "__builtin_mul_overflow does not support signed _ExtInt operands of more "
7979  "than %0 bits">;
7980
7981def err_atomic_load_store_uses_lib : Error<
7982  "atomic %select{load|store}0 requires runtime support that is not "
7983  "available for this target">;
7984
7985def err_nontemporal_builtin_must_be_pointer : Error<
7986  "address argument to nontemporal builtin must be a pointer (%0 invalid)">;
7987def err_nontemporal_builtin_must_be_pointer_intfltptr_or_vector : Error<
7988  "address argument to nontemporal builtin must be a pointer to integer, float, "
7989  "pointer, or a vector of such types (%0 invalid)">;
7990
7991def err_deleted_function_use : Error<"attempt to use a deleted function">;
7992def err_deleted_inherited_ctor_use : Error<
7993  "constructor inherited by %0 from base class %1 is implicitly deleted">;
7994
7995def note_called_by : Note<"called by %0">;
7996def err_kern_type_not_void_return : Error<
7997  "kernel function type %0 must have void return type">;
7998def err_kern_is_nonstatic_method : Error<
7999  "kernel function %0 must be a free function or static member function">;
8000def err_config_scalar_return : Error<
8001  "CUDA special function '%0' must have scalar return type">;
8002def err_kern_call_not_global_function : Error<
8003  "kernel call to non-global function %0">;
8004def err_global_call_not_config : Error<
8005  "call to global function %0 not configured">;
8006def err_ref_bad_target : Error<
8007  "reference to %select{__device__|__global__|__host__|__host__ __device__}0 "
8008  "function %1 in %select{__device__|__global__|__host__|__host__ __device__}2 function">;
8009def err_ref_bad_target_global_initializer : Error<
8010  "reference to %select{__device__|__global__|__host__|__host__ __device__}0 "
8011  "function %1 in global initializer">;
8012def err_capture_bad_target : Error<
8013  "capture host variable %0 by reference in device or host device lambda function">;
8014def err_capture_bad_target_this_ptr : Error<
8015  "capture host side class data member by this pointer in device or host device lambda function">;
8016def warn_kern_is_method : Extension<
8017  "kernel function %0 is a member function; this may not be accepted by nvcc">,
8018  InGroup<CudaCompat>;
8019def warn_kern_is_inline : Warning<
8020  "ignored 'inline' attribute on kernel function %0">,
8021  InGroup<CudaCompat>;
8022def err_variadic_device_fn : Error<
8023  "CUDA device code does not support variadic functions">;
8024def err_va_arg_in_device : Error<
8025  "CUDA device code does not support va_arg">;
8026def err_alias_not_supported_on_nvptx : Error<"CUDA does not support aliases">;
8027def err_cuda_unattributed_constexpr_cannot_overload_device : Error<
8028  "constexpr function %0 without __host__ or __device__ attributes cannot "
8029  "overload __device__ function with same signature.  Add a __host__ "
8030  "attribute, or build with -fno-cuda-host-device-constexpr.">;
8031def note_cuda_conflicting_device_function_declared_here : Note<
8032  "conflicting __device__ function declared here">;
8033def err_cuda_device_exceptions : Error<
8034  "cannot use '%0' in "
8035  "%select{__device__|__global__|__host__|__host__ __device__}1 function">;
8036def err_dynamic_var_init : Error<
8037    "dynamic initialization is not supported for "
8038    "__device__, __constant__, and __shared__ variables.">;
8039def err_shared_var_init : Error<
8040    "initialization is not supported for __shared__ variables.">;
8041def err_device_static_local_var : Error<
8042    "within a %select{__device__|__global__|__host__|__host__ __device__}0 "
8043    "function, only __shared__ variables or const variables without device "
8044    "memory qualifier may be marked 'static'">;
8045def err_cuda_vla : Error<
8046    "cannot use variable-length arrays in "
8047    "%select{__device__|__global__|__host__|__host__ __device__}0 functions">;
8048def err_cuda_extern_shared : Error<"__shared__ variable %0 cannot be 'extern'">;
8049def err_cuda_host_shared : Error<
8050    "__shared__ local variables not allowed in "
8051    "%select{__device__|__global__|__host__|__host__ __device__}0 functions">;
8052def err_cuda_nonglobal_constant : Error<"__constant__ variables must be global">;
8053def err_cuda_ovl_target : Error<
8054  "%select{__device__|__global__|__host__|__host__ __device__}0 function %1 "
8055  "cannot overload %select{__device__|__global__|__host__|__host__ __device__}2 function %3">;
8056def note_cuda_ovl_candidate_target_mismatch : Note<
8057    "candidate template ignored: target attributes do not match">;
8058
8059def err_cuda_device_builtin_surftex_cls_template : Error<
8060    "illegal device builtin %select{surface|texture}0 reference "
8061    "class template %1 declared here">;
8062def note_cuda_device_builtin_surftex_cls_should_have_n_args : Note<
8063    "%0 needs to have exactly %1 template parameters">;
8064def note_cuda_device_builtin_surftex_cls_should_have_match_arg : Note<
8065    "the %select{1st|2nd|3rd}1 template parameter of %0 needs to be "
8066    "%select{a type|an integer or enum value}2">;
8067
8068def err_cuda_device_builtin_surftex_ref_decl : Error<
8069    "illegal device builtin %select{surface|texture}0 reference "
8070    "type %1 declared here">;
8071def note_cuda_device_builtin_surftex_should_be_template_class : Note<
8072    "%0 needs to be instantiated from a class template with proper "
8073    "template arguments">;
8074
8075def warn_non_pod_vararg_with_format_string : Warning<
8076  "cannot pass %select{non-POD|non-trivial}0 object of type %1 to variadic "
8077  "%select{function|block|method|constructor}2; expected type from format "
8078  "string was %3">, InGroup<NonPODVarargs>, DefaultError;
8079// The arguments to this diagnostic should match the warning above.
8080def err_cannot_pass_objc_interface_to_vararg_format : Error<
8081  "cannot pass object with interface type %1 by value to variadic "
8082  "%select{function|block|method|constructor}2; expected type from format "
8083  "string was %3">;
8084def err_cannot_pass_non_trivial_c_struct_to_vararg : Error<
8085  "cannot pass non-trivial C object of type %0 by value to variadic "
8086  "%select{function|block|method|constructor}1">;
8087
8088
8089def err_cannot_pass_objc_interface_to_vararg : Error<
8090  "cannot pass object with interface type %0 by value through variadic "
8091  "%select{function|block|method|constructor}1">;
8092def warn_cannot_pass_non_pod_arg_to_vararg : Warning<
8093  "cannot pass object of %select{non-POD|non-trivial}0 type %1 through variadic"
8094  " %select{function|block|method|constructor}2; call will abort at runtime">,
8095  InGroup<NonPODVarargs>, DefaultError;
8096def warn_cxx98_compat_pass_non_pod_arg_to_vararg : Warning<
8097  "passing object of trivial but non-POD type %0 through variadic"
8098  " %select{function|block|method|constructor}1 is incompatible with C++98">,
8099  InGroup<CXX98Compat>, DefaultIgnore;
8100def warn_pass_class_arg_to_vararg : Warning<
8101  "passing object of class type %0 through variadic "
8102  "%select{function|block|method|constructor}1"
8103  "%select{|; did you mean to call '%3'?}2">,
8104  InGroup<ClassVarargs>, DefaultIgnore;
8105def err_cannot_pass_to_vararg : Error<
8106  "cannot pass %select{expression of type %1|initializer list}0 to variadic "
8107  "%select{function|block|method|constructor}2">;
8108def err_cannot_pass_to_vararg_format : Error<
8109  "cannot pass %select{expression of type %1|initializer list}0 to variadic "
8110  "%select{function|block|method|constructor}2; expected type from format "
8111  "string was %3">;
8112
8113def err_typecheck_call_invalid_ordered_compare : Error<
8114  "ordered compare requires two args of floating point type"
8115  "%diff{ ($ and $)|}0,1">;
8116def err_typecheck_call_invalid_unary_fp : Error<
8117  "floating point classification requires argument of floating point type "
8118  "(passed in %0)">;
8119def err_typecheck_cond_expect_int_float : Error<
8120  "used type %0 where integer or floating point type is required">;
8121def err_typecheck_cond_expect_scalar : Error<
8122  "used type %0 where arithmetic or pointer type is required">;
8123def err_typecheck_cond_expect_nonfloat : Error<
8124  "used type %0 where floating point type is not allowed">;
8125def ext_typecheck_cond_one_void : Extension<
8126  "C99 forbids conditional expressions with only one void side">;
8127def err_typecheck_cast_to_incomplete : Error<
8128  "cast to incomplete type %0">;
8129def ext_typecheck_cast_nonscalar : Extension<
8130  "C99 forbids casting nonscalar type %0 to the same type">;
8131def ext_typecheck_cast_to_union : Extension<
8132  "cast to union type is a GNU extension">,
8133  InGroup<GNUUnionCast>;
8134def err_typecheck_cast_to_union_no_type : Error<
8135  "cast to union type from type %0 not present in union">;
8136def err_cast_pointer_from_non_pointer_int : Error<
8137  "operand of type %0 cannot be cast to a pointer type">;
8138def warn_cast_pointer_from_sel : Warning<
8139  "cast of type %0 to %1 is deprecated; use sel_getName instead">,
8140  InGroup<SelTypeCast>;
8141def warn_function_def_in_objc_container : Warning<
8142  "function definition inside an Objective-C container is deprecated">,
8143  InGroup<FunctionDefInObjCContainer>;
8144
8145def warn_cast_calling_conv : Warning<
8146  "cast between incompatible calling conventions '%0' and '%1'; "
8147  "calls through this pointer may abort at runtime">,
8148  InGroup<DiagGroup<"cast-calling-convention">>;
8149def note_change_calling_conv_fixit : Note<
8150  "consider defining %0 with the '%1' calling convention">;
8151def warn_bad_function_cast : Warning<
8152  "cast from function call of type %0 to non-matching type %1">,
8153  InGroup<BadFunctionCast>, DefaultIgnore;
8154def err_cast_pointer_to_non_pointer_int : Error<
8155  "pointer cannot be cast to type %0">;
8156def err_cast_to_bfloat16 : Error<"cannot type-cast to __bf16">;
8157def err_cast_from_bfloat16 : Error<"cannot type-cast from __bf16">;
8158def err_typecheck_expect_scalar_operand : Error<
8159  "operand of type %0 where arithmetic or pointer type is required">;
8160def err_typecheck_cond_incompatible_operands : Error<
8161  "incompatible operand types%diff{ ($ and $)|}0,1">;
8162def err_cast_selector_expr : Error<
8163  "cannot type cast @selector expression">;
8164def ext_typecheck_cond_incompatible_pointers : ExtWarn<
8165  "pointer type mismatch%diff{ ($ and $)|}0,1">,
8166  InGroup<DiagGroup<"pointer-type-mismatch">>;
8167def ext_typecheck_cond_pointer_integer_mismatch : ExtWarn<
8168  "pointer/integer type mismatch in conditional expression"
8169  "%diff{ ($ and $)|}0,1">,
8170  InGroup<DiagGroup<"conditional-type-mismatch">>;
8171def err_typecheck_choose_expr_requires_constant : Error<
8172  "'__builtin_choose_expr' requires a constant expression">;
8173def warn_unused_expr : Warning<"expression result unused">,
8174  InGroup<UnusedValue>;
8175def warn_unused_voidptr : Warning<
8176  "expression result unused; should this cast be to 'void'?">,
8177  InGroup<UnusedValue>;
8178def warn_unused_property_expr : Warning<
8179 "property access result unused - getters should not be used for side effects">,
8180  InGroup<UnusedGetterReturnValue>;
8181def warn_unused_container_subscript_expr : Warning<
8182 "container access result unused - container access should not be used for side effects">,
8183  InGroup<UnusedValue>;
8184def warn_unused_call : Warning<
8185  "ignoring return value of function declared with %0 attribute">,
8186  InGroup<UnusedValue>;
8187def warn_unused_constructor : Warning<
8188  "ignoring temporary created by a constructor declared with %0 attribute">,
8189  InGroup<UnusedValue>;
8190def warn_unused_constructor_msg : Warning<
8191  "ignoring temporary created by a constructor declared with %0 attribute: %1">,
8192  InGroup<UnusedValue>;
8193def warn_side_effects_unevaluated_context : Warning<
8194  "expression with side effects has no effect in an unevaluated context">,
8195  InGroup<UnevaluatedExpression>;
8196def warn_side_effects_typeid : Warning<
8197  "expression with side effects will be evaluated despite being used as an "
8198  "operand to 'typeid'">, InGroup<PotentiallyEvaluatedExpression>;
8199def warn_unused_result : Warning<
8200  "ignoring return value of function declared with %0 attribute">,
8201  InGroup<UnusedResult>;
8202def warn_unused_result_msg : Warning<
8203  "ignoring return value of function declared with %0 attribute: %1">,
8204  InGroup<UnusedResult>;
8205def warn_unused_volatile : Warning<
8206  "expression result unused; assign into a variable to force a volatile load">,
8207  InGroup<DiagGroup<"unused-volatile-lvalue">>;
8208
8209def ext_cxx14_attr : Extension<
8210  "use of the %0 attribute is a C++14 extension">, InGroup<CXX14>;
8211def ext_cxx17_attr : Extension<
8212  "use of the %0 attribute is a C++17 extension">, InGroup<CXX17>;
8213def ext_cxx20_attr : Extension<
8214  "use of the %0 attribute is a C++20 extension">, InGroup<CXX20>;
8215
8216def warn_unused_comparison : Warning<
8217  "%select{equality|inequality|relational|three-way}0 comparison result unused">,
8218  InGroup<UnusedComparison>;
8219def note_inequality_comparison_to_or_assign : Note<
8220  "use '|=' to turn this inequality comparison into an or-assignment">;
8221
8222def err_incomplete_type_used_in_type_trait_expr : Error<
8223  "incomplete type %0 used in type trait expression">;
8224
8225// C++20 constinit and require_constant_initialization attribute
8226def warn_cxx20_compat_constinit : Warning<
8227  "'constinit' specifier is incompatible with C++ standards before C++20">,
8228  InGroup<CXX20Compat>, DefaultIgnore;
8229def err_constinit_local_variable : Error<
8230  "local variable cannot be declared 'constinit'">;
8231def err_require_constant_init_failed : Error<
8232  "variable does not have a constant initializer">;
8233def note_declared_required_constant_init_here : Note<
8234  "required by %select{'require_constant_initialization' attribute|"
8235  "'constinit' specifier}0 here">;
8236def ext_constinit_missing : ExtWarn<
8237  "'constinit' specifier missing on initializing declaration of %0">,
8238  InGroup<DiagGroup<"missing-constinit">>;
8239def note_constinit_specified_here : Note<"variable declared constinit here">;
8240def err_constinit_added_too_late : Error<
8241  "'constinit' specifier added after initialization of variable">;
8242def warn_require_const_init_added_too_late : Warning<
8243  "'require_constant_initialization' attribute added after initialization "
8244  "of variable">, InGroup<IgnoredAttributes>;
8245def note_constinit_missing_here : Note<
8246  "add the "
8247  "%select{'require_constant_initialization' attribute|'constinit' specifier}0 "
8248  "to the initializing declaration here">;
8249
8250def err_dimension_expr_not_constant_integer : Error<
8251  "dimension expression does not evaluate to a constant unsigned int">;
8252
8253def err_typecheck_cond_incompatible_operands_null : Error<
8254  "non-pointer operand type %0 incompatible with %select{NULL|nullptr}1">;
8255def ext_empty_struct_union : Extension<
8256  "empty %select{struct|union}0 is a GNU extension">, InGroup<GNUEmptyStruct>;
8257def ext_no_named_members_in_struct_union : Extension<
8258  "%select{struct|union}0 without named members is a GNU extension">, InGroup<GNUEmptyStruct>;
8259def warn_zero_size_struct_union_compat : Warning<"%select{|empty }0"
8260  "%select{struct|union}1 has size 0 in C, %select{size 1|non-zero size}2 in C++">,
8261  InGroup<CXXCompat>, DefaultIgnore;
8262def warn_zero_size_struct_union_in_extern_c : Warning<"%select{|empty }0"
8263  "%select{struct|union}1 has size 0 in C, %select{size 1|non-zero size}2 in C++">,
8264  InGroup<ExternCCompat>;
8265def warn_cast_qual : Warning<"cast from %0 to %1 drops %select{const and "
8266  "volatile qualifiers|const qualifier|volatile qualifier}2">,
8267  InGroup<CastQual>, DefaultIgnore;
8268def warn_cast_qual2 : Warning<"cast from %0 to %1 must have all intermediate "
8269  "pointers const qualified to be safe">, InGroup<CastQual>, DefaultIgnore;
8270def warn_redefine_extname_not_applied : Warning<
8271  "#pragma redefine_extname is applicable to external C declarations only; "
8272  "not applied to %select{function|variable}0 %1">,
8273  InGroup<Pragmas>;
8274} // End of general sema category.
8275
8276// inline asm.
8277let CategoryName = "Inline Assembly Issue" in {
8278  def err_asm_invalid_lvalue_in_output : Error<"invalid lvalue in asm output">;
8279  def err_asm_invalid_output_constraint : Error<
8280    "invalid output constraint '%0' in asm">;
8281  def err_asm_invalid_lvalue_in_input : Error<
8282    "invalid lvalue in asm input for constraint '%0'">;
8283  def err_asm_invalid_input_constraint : Error<
8284    "invalid input constraint '%0' in asm">;
8285  def err_asm_tying_incompatible_types : Error<
8286    "unsupported inline asm: input with type "
8287    "%diff{$ matching output with type $|}0,1">;
8288  def err_asm_unexpected_constraint_alternatives : Error<
8289    "asm constraint has an unexpected number of alternatives: %0 vs %1">;
8290  def err_asm_incomplete_type : Error<"asm operand has incomplete type %0">;
8291  def err_asm_unknown_register_name : Error<"unknown register name '%0' in asm">;
8292  def err_asm_invalid_global_var_reg : Error<"register '%0' unsuitable for "
8293    "global register variables on this target">;
8294  def err_asm_register_size_mismatch : Error<"size of register '%0' does not "
8295    "match variable size">;
8296  def err_asm_bad_register_type : Error<"bad type for named register variable">;
8297  def err_asm_invalid_input_size : Error<
8298    "invalid input size for constraint '%0'">;
8299  def err_asm_invalid_output_size : Error<
8300    "invalid output size for constraint '%0'">;
8301  def err_invalid_asm_cast_lvalue : Error<
8302    "invalid use of a cast in a inline asm context requiring an l-value: "
8303    "remove the cast or build with -fheinous-gnu-extensions">;
8304  def err_invalid_asm_value_for_constraint
8305      : Error <"value '%0' out of range for constraint '%1'">;
8306  def err_asm_non_addr_value_in_memory_constraint : Error <
8307    "reference to a %select{bit-field|vector element|global register variable}0"
8308    " in asm %select{input|output}1 with a memory constraint '%2'">;
8309  def err_asm_input_duplicate_match : Error<
8310    "more than one input constraint matches the same output '%0'">;
8311
8312  def warn_asm_label_on_auto_decl : Warning<
8313    "ignored asm label '%0' on automatic variable">;
8314  def warn_invalid_asm_cast_lvalue : Warning<
8315    "invalid use of a cast in an inline asm context requiring an l-value: "
8316    "accepted due to -fheinous-gnu-extensions, but clang may remove support "
8317    "for this in the future">;
8318  def warn_asm_mismatched_size_modifier : Warning<
8319    "value size does not match register size specified by the constraint "
8320    "and modifier">,
8321    InGroup<ASMOperandWidths>;
8322
8323  def note_asm_missing_constraint_modifier : Note<
8324    "use constraint modifier \"%0\"">;
8325  def note_asm_input_duplicate_first : Note<
8326    "constraint '%0' is already present here">;
8327 def error_duplicate_asm_operand_name : Error<
8328    "duplicate use of asm operand name \"%0\"">;
8329 def note_duplicate_asm_operand_name : Note<
8330    "asm operand name \"%0\" first referenced here">;
8331}
8332
8333  def error_inoutput_conflict_with_clobber : Error<
8334    "asm-specifier for input or output variable conflicts with asm"
8335    " clobber list">;
8336
8337let CategoryName = "Semantic Issue" in {
8338
8339def err_invalid_conversion_between_vectors : Error<
8340  "invalid conversion between vector type%diff{ $ and $|}0,1 of different "
8341  "size">;
8342def err_invalid_conversion_between_vector_and_integer : Error<
8343  "invalid conversion between vector type %0 and integer type %1 "
8344  "of different size">;
8345
8346def err_opencl_function_pointer : Error<
8347  "pointers to functions are not allowed">;
8348
8349def err_opencl_taking_address_capture : Error<
8350  "taking address of a capture is not allowed">;
8351
8352def err_invalid_conversion_between_vector_and_scalar : Error<
8353  "invalid conversion between vector type %0 and scalar type %1">;
8354
8355// C++ member initializers.
8356def err_only_constructors_take_base_inits : Error<
8357  "only constructors take base initializers">;
8358
8359def err_multiple_mem_initialization : Error <
8360  "multiple initializations given for non-static member %0">;
8361def err_multiple_mem_union_initialization : Error <
8362  "initializing multiple members of union">;
8363def err_multiple_base_initialization : Error <
8364  "multiple initializations given for base %0">;
8365
8366def err_mem_init_not_member_or_class : Error<
8367  "member initializer %0 does not name a non-static data member or base "
8368  "class">;
8369
8370def warn_initializer_out_of_order : Warning<
8371  "%select{field|base class}0 %1 will be initialized after "
8372  "%select{field|base}2 %3">,
8373  InGroup<ReorderCtor>, DefaultIgnore;
8374def warn_abstract_vbase_init_ignored : Warning<
8375  "initializer for virtual base class %0 of abstract class %1 "
8376  "will never be used">,
8377  InGroup<DiagGroup<"abstract-vbase-init">>, DefaultIgnore;
8378
8379def err_base_init_does_not_name_class : Error<
8380  "constructor initializer %0 does not name a class">;
8381def err_base_init_direct_and_virtual : Error<
8382  "base class initializer %0 names both a direct base class and an "
8383  "inherited virtual base class">;
8384def err_not_direct_base_or_virtual : Error<
8385  "type %0 is not a direct or virtual base of %1">;
8386
8387def err_in_class_initializer_non_const : Error<
8388  "non-const static data member must be initialized out of line">;
8389def err_in_class_initializer_volatile : Error<
8390  "static const volatile data member must be initialized out of line">;
8391def err_in_class_initializer_bad_type : Error<
8392  "static data member of type %0 must be initialized out of line">;
8393def ext_in_class_initializer_float_type : ExtWarn<
8394  "in-class initializer for static data member of type %0 is a GNU extension">,
8395  InGroup<GNUStaticFloatInit>;
8396def ext_in_class_initializer_float_type_cxx11 : ExtWarn<
8397  "in-class initializer for static data member of type %0 requires "
8398  "'constexpr' specifier">, InGroup<StaticFloatInit>, DefaultError;
8399def note_in_class_initializer_float_type_cxx11 : Note<"add 'constexpr'">;
8400def err_in_class_initializer_literal_type : Error<
8401  "in-class initializer for static data member of type %0 requires "
8402  "'constexpr' specifier">;
8403def err_in_class_initializer_non_constant : Error<
8404  "in-class initializer for static data member is not a constant expression">;
8405def err_in_class_initializer_not_yet_parsed : Error<
8406  "default member initializer for %1 needed within definition of enclosing "
8407  "class %0 outside of member functions">;
8408def note_in_class_initializer_not_yet_parsed : Note<
8409  "default member initializer declared here">;
8410def err_in_class_initializer_cycle
8411    : Error<"default member initializer for %0 uses itself">;
8412
8413def ext_in_class_initializer_non_constant : Extension<
8414  "in-class initializer for static data member is not a constant expression; "
8415  "folding it to a constant is a GNU extension">, InGroup<GNUFoldingConstant>;
8416
8417def err_thread_dynamic_init : Error<
8418  "initializer for thread-local variable must be a constant expression">;
8419def err_thread_nontrivial_dtor : Error<
8420  "type of thread-local variable has non-trivial destruction">;
8421def note_use_thread_local : Note<
8422  "use 'thread_local' to allow this">;
8423
8424// C++ anonymous unions and GNU anonymous structs/unions
8425def ext_anonymous_union : Extension<
8426  "anonymous unions are a C11 extension">, InGroup<C11>;
8427def ext_gnu_anonymous_struct : Extension<
8428  "anonymous structs are a GNU extension">, InGroup<GNUAnonymousStruct>;
8429def ext_c11_anonymous_struct : Extension<
8430  "anonymous structs are a C11 extension">, InGroup<C11>;
8431def err_anonymous_union_not_static : Error<
8432  "anonymous unions at namespace or global scope must be declared 'static'">;
8433def err_anonymous_union_with_storage_spec : Error<
8434  "anonymous union at class scope must not have a storage specifier">;
8435def err_anonymous_struct_not_member : Error<
8436  "anonymous %select{structs|structs and classes}0 must be "
8437  "%select{struct or union|class}0 members">;
8438def err_anonymous_record_member_redecl : Error<
8439  "member of anonymous %select{struct|union}0 redeclares %1">;
8440def err_anonymous_record_with_type : Error<
8441  "types cannot be declared in an anonymous %select{struct|union}0">;
8442def ext_anonymous_record_with_type : Extension<
8443  "types declared in an anonymous %select{struct|union}0 are a Microsoft "
8444  "extension">, InGroup<MicrosoftAnonTag>;
8445def ext_anonymous_record_with_anonymous_type : Extension<
8446  "anonymous types declared in an anonymous %select{struct|union}0 "
8447  "are an extension">, InGroup<DiagGroup<"nested-anon-types">>;
8448def err_anonymous_record_with_function : Error<
8449  "functions cannot be declared in an anonymous %select{struct|union}0">;
8450def err_anonymous_record_with_static : Error<
8451  "static members cannot be declared in an anonymous %select{struct|union}0">;
8452def err_anonymous_record_bad_member : Error<
8453  "anonymous %select{struct|union}0 can only contain non-static data members">;
8454def err_anonymous_record_nonpublic_member : Error<
8455  "anonymous %select{struct|union}0 cannot contain a "
8456  "%select{private|protected}1 data member">;
8457def ext_ms_anonymous_record : ExtWarn<
8458  "anonymous %select{structs|unions}0 are a Microsoft extension">,
8459  InGroup<MicrosoftAnonTag>;
8460
8461// C++ local classes
8462def err_reference_to_local_in_enclosing_context : Error<
8463  "reference to local %select{variable|binding}1 %0 declared in enclosing "
8464  "%select{%3|block literal|lambda expression|context}2">;
8465
8466def err_static_data_member_not_allowed_in_local_class : Error<
8467  "static data member %0 not allowed in local %sub{select_tag_type_kind}2 %1">;
8468
8469// C++ derived classes
8470def err_base_clause_on_union : Error<"unions cannot have base classes">;
8471def err_base_must_be_class : Error<"base specifier must name a class">;
8472def err_union_as_base_class : Error<"unions cannot be base classes">;
8473def err_circular_inheritance : Error<
8474  "circular inheritance between %0 and %1">;
8475def err_base_class_has_flexible_array_member : Error<
8476  "base class %0 has a flexible array member">;
8477def err_incomplete_base_class : Error<"base class has incomplete type">;
8478def err_duplicate_base_class : Error<
8479  "base class %0 specified more than once as a direct base class">;
8480def warn_inaccessible_base_class : Warning<
8481  "direct base %0 is inaccessible due to ambiguity:%1">,
8482  InGroup<DiagGroup<"inaccessible-base">>;
8483// FIXME: better way to display derivation?  Pass entire thing into diagclient?
8484def err_ambiguous_derived_to_base_conv : Error<
8485  "ambiguous conversion from derived class %0 to base class %1:%2">;
8486def err_ambiguous_memptr_conv : Error<
8487  "ambiguous conversion from pointer to member of %select{base|derived}0 "
8488  "class %1 to pointer to member of %select{derived|base}0 class %2:%3">;
8489def ext_ms_ambiguous_direct_base : ExtWarn<
8490  "accessing inaccessible direct base %0 of %1 is a Microsoft extension">,
8491  InGroup<MicrosoftInaccessibleBase>;
8492
8493def err_memptr_conv_via_virtual : Error<
8494  "conversion from pointer to member of class %0 to pointer to member "
8495  "of class %1 via virtual base %2 is not allowed">;
8496
8497// C++ member name lookup
8498def err_ambiguous_member_multiple_subobjects : Error<
8499  "non-static member %0 found in multiple base-class subobjects of type %1:%2">;
8500def err_ambiguous_member_multiple_subobject_types : Error<
8501  "member %0 found in multiple base classes of different types">;
8502def note_ambiguous_member_found : Note<"member found by ambiguous name lookup">;
8503def err_ambiguous_reference : Error<"reference to %0 is ambiguous">;
8504def note_ambiguous_candidate : Note<"candidate found by name lookup is %q0">;
8505def err_ambiguous_tag_hiding : Error<"a type named %0 is hidden by a "
8506  "declaration in a different namespace">;
8507def note_hidden_tag : Note<"type declaration hidden">;
8508def note_hiding_object : Note<"declaration hides type">;
8509
8510// C++ operator overloading
8511def err_operator_overload_needs_class_or_enum : Error<
8512  "overloaded %0 must have at least one parameter of class "
8513  "or enumeration type">;
8514
8515def err_operator_overload_variadic : Error<"overloaded %0 cannot be variadic">;
8516def err_operator_overload_static : Error<
8517  "overloaded %0 cannot be a static member function">;
8518def err_operator_overload_default_arg : Error<
8519  "parameter of overloaded %0 cannot have a default argument">;
8520def err_operator_overload_must_be : Error<
8521  "overloaded %0 must be a %select{unary|binary|unary or binary}2 operator "
8522  "(has %1 parameter%s1)">;
8523
8524def err_operator_overload_must_be_member : Error<
8525  "overloaded %0 must be a non-static member function">;
8526def err_operator_overload_post_incdec_must_be_int : Error<
8527  "parameter of overloaded post-%select{increment|decrement}1 operator must "
8528  "have type 'int' (not %0)">;
8529
8530// C++ allocation and deallocation functions.
8531def err_operator_new_delete_declared_in_namespace : Error<
8532  "%0 cannot be declared inside a namespace">;
8533def err_operator_new_delete_declared_static : Error<
8534  "%0 cannot be declared static in global scope">;
8535def ext_operator_new_delete_declared_inline : ExtWarn<
8536  "replacement function %0 cannot be declared 'inline'">,
8537  InGroup<DiagGroup<"inline-new-delete">>;
8538def err_operator_new_delete_invalid_result_type : Error<
8539  "%0 must return type %1">;
8540def err_operator_new_delete_dependent_result_type : Error<
8541  "%0 cannot have a dependent return type; use %1 instead">;
8542def err_operator_new_delete_too_few_parameters : Error<
8543  "%0 must have at least one parameter">;
8544def err_operator_new_delete_template_too_few_parameters : Error<
8545  "%0 template must have at least two parameters">;
8546def warn_operator_new_returns_null : Warning<
8547  "%0 should not return a null pointer unless it is declared 'throw()'"
8548  "%select{| or 'noexcept'}1">, InGroup<OperatorNewReturnsNull>;
8549
8550def err_operator_new_dependent_param_type : Error<
8551  "%0 cannot take a dependent type as first parameter; "
8552  "use size_t (%1) instead">;
8553def err_operator_new_param_type : Error<
8554  "%0 takes type size_t (%1) as first parameter">;
8555def err_operator_new_default_arg: Error<
8556  "parameter of %0 cannot have a default argument">;
8557def err_operator_delete_dependent_param_type : Error<
8558  "%0 cannot take a dependent type as first parameter; use %1 instead">;
8559def err_operator_delete_param_type : Error<
8560  "first parameter of %0 must have type %1">;
8561def err_destroying_operator_delete_not_usual : Error<
8562  "destroying operator delete can have only an optional size and optional "
8563  "alignment parameter">;
8564def note_implicit_delete_this_in_destructor_here : Note<
8565  "while checking implicit 'delete this' for virtual destructor">;
8566def err_builtin_operator_new_delete_not_usual : Error<
8567  "call to '%select{__builtin_operator_new|__builtin_operator_delete}0' "
8568  "selects non-usual %select{allocation|deallocation}0 function">;
8569def note_non_usual_function_declared_here : Note<
8570  "non-usual %0 declared here">;
8571
8572// C++ literal operators
8573def err_literal_operator_outside_namespace : Error<
8574  "literal operator %0 must be in a namespace or global scope">;
8575def err_literal_operator_id_outside_namespace : Error<
8576  "non-namespace scope '%0' cannot have a literal operator member">;
8577def err_literal_operator_default_argument : Error<
8578  "literal operator cannot have a default argument">;
8579def err_literal_operator_bad_param_count : Error<
8580  "non-template literal operator must have one or two parameters">;
8581def err_literal_operator_invalid_param : Error<
8582  "parameter of literal operator must have type 'unsigned long long', 'long double', 'char', 'wchar_t', 'char16_t', 'char32_t', or 'const char *'">;
8583def err_literal_operator_param : Error<
8584  "invalid literal operator parameter type %0, did you mean %1?">;
8585def err_literal_operator_template_with_params : Error<
8586  "literal operator template cannot have any parameters">;
8587def err_literal_operator_template : Error<
8588  "template parameter list for literal operator must be either 'char...' or 'typename T, T...'">;
8589def err_literal_operator_extern_c : Error<
8590  "literal operator must have C++ linkage">;
8591def ext_string_literal_operator_template : ExtWarn<
8592  "string literal operator templates are a GNU extension">,
8593  InGroup<GNUStringLiteralOperatorTemplate>;
8594def warn_user_literal_reserved : Warning<
8595  "user-defined literal suffixes not starting with '_' are reserved"
8596  "%select{; no literal will invoke this operator|}0">,
8597  InGroup<UserDefinedLiterals>;
8598
8599// C++ conversion functions
8600def err_conv_function_not_member : Error<
8601  "conversion function must be a non-static member function">;
8602def err_conv_function_return_type : Error<
8603  "conversion function cannot have a return type">;
8604def err_conv_function_with_params : Error<
8605  "conversion function cannot have any parameters">;
8606def err_conv_function_variadic : Error<
8607  "conversion function cannot be variadic">;
8608def err_conv_function_to_array : Error<
8609  "conversion function cannot convert to an array type">;
8610def err_conv_function_to_function : Error<
8611  "conversion function cannot convert to a function type">;
8612def err_conv_function_with_complex_decl : Error<
8613  "cannot specify any part of a return type in the "
8614  "declaration of a conversion function"
8615  "%select{"
8616  "; put the complete type after 'operator'|"
8617  "; use a typedef to declare a conversion to %1|"
8618  "; use an alias template to declare a conversion to %1|"
8619  "}0">;
8620def err_conv_function_redeclared : Error<
8621  "conversion function cannot be redeclared">;
8622def warn_conv_to_self_not_used : Warning<
8623  "conversion function converting %0 to itself will never be used">,
8624  InGroup<ClassConversion>;
8625def warn_conv_to_base_not_used : Warning<
8626  "conversion function converting %0 to its base class %1 will never be used">,
8627  InGroup<ClassConversion>;
8628def warn_conv_to_void_not_used : Warning<
8629  "conversion function converting %0 to %1 will never be used">,
8630  InGroup<ClassConversion>;
8631
8632def warn_not_compound_assign : Warning<
8633  "use of unary operator that may be intended as compound assignment (%0=)">;
8634
8635// C++11 explicit conversion operators
8636def ext_explicit_conversion_functions : ExtWarn<
8637  "explicit conversion functions are a C++11 extension">, InGroup<CXX11>;
8638def warn_cxx98_compat_explicit_conversion_functions : Warning<
8639  "explicit conversion functions are incompatible with C++98">,
8640  InGroup<CXX98Compat>, DefaultIgnore;
8641
8642// C++11 defaulted functions
8643def err_defaulted_special_member_params : Error<
8644  "an explicitly-defaulted %select{|copy |move }0constructor cannot "
8645  "have default arguments">;
8646def err_defaulted_special_member_variadic : Error<
8647  "an explicitly-defaulted %select{|copy |move }0constructor cannot "
8648  "be variadic">;
8649def err_defaulted_special_member_return_type : Error<
8650  "explicitly-defaulted %select{copy|move}0 assignment operator must "
8651  "return %1">;
8652def err_defaulted_special_member_quals : Error<
8653  "an explicitly-defaulted %select{copy|move}0 assignment operator may not "
8654  "have 'const'%select{, 'constexpr'|}1 or 'volatile' qualifiers">;
8655def err_defaulted_special_member_volatile_param : Error<
8656  "the parameter for an explicitly-defaulted %sub{select_special_member_kind}0 "
8657  "may not be volatile">;
8658def err_defaulted_special_member_move_const_param : Error<
8659  "the parameter for an explicitly-defaulted move "
8660  "%select{constructor|assignment operator}0 may not be const">;
8661def err_defaulted_special_member_copy_const_param : Error<
8662  "the parameter for this explicitly-defaulted copy "
8663  "%select{constructor|assignment operator}0 is const, but a member or base "
8664  "requires it to be non-const">;
8665def err_defaulted_copy_assign_not_ref : Error<
8666  "the parameter for an explicitly-defaulted copy assignment operator must be an "
8667  "lvalue reference type">;
8668def err_incorrect_defaulted_constexpr : Error<
8669  "defaulted definition of %sub{select_special_member_kind}0 "
8670  "is not constexpr">;
8671def err_incorrect_defaulted_consteval : Error<
8672  "defaulted declaration of %sub{select_special_member_kind}0 "
8673  "cannot be consteval because implicit definition is not constexpr">;
8674def warn_defaulted_method_deleted : Warning<
8675  "explicitly defaulted %sub{select_special_member_kind}0 is implicitly "
8676  "deleted">, InGroup<DefaultedFunctionDeleted>;
8677def err_out_of_line_default_deletes : Error<
8678  "defaulting this %sub{select_special_member_kind}0 "
8679  "would delete it after its first declaration">;
8680def note_deleted_type_mismatch : Note<
8681  "function is implicitly deleted because its declared type does not match "
8682  "the type of an implicit %sub{select_special_member_kind}0">;
8683def warn_cxx17_compat_defaulted_method_type_mismatch : Warning<
8684  "explicitly defaulting this %sub{select_special_member_kind}0 with a type "
8685  "different from the implicit type is incompatible with C++ standards before "
8686  "C++20">, InGroup<CXXPre20Compat>, DefaultIgnore;
8687def warn_vbase_moved_multiple_times : Warning<
8688  "defaulted move assignment operator of %0 will move assign virtual base "
8689  "class %1 multiple times">, InGroup<DiagGroup<"multiple-move-vbase">>;
8690def note_vbase_moved_here : Note<
8691  "%select{%1 is a virtual base class of base class %2 declared here|"
8692  "virtual base class %1 declared here}0">;
8693
8694// C++20 defaulted comparisons
8695// This corresponds to values of Sema::DefaultedComparisonKind.
8696def select_defaulted_comparison_kind : TextSubstitution<
8697  "%select{<ERROR>|equality|three-way|equality|relational}0 comparison "
8698  "operator">;
8699def ext_defaulted_comparison : ExtWarn<
8700  "defaulted comparison operators are a C++20 extension">, InGroup<CXX20>;
8701def warn_cxx17_compat_defaulted_comparison : Warning<
8702  "defaulted comparison operators are incompatible with C++ standards "
8703  "before C++20">, InGroup<CXXPre20Compat>, DefaultIgnore;
8704def err_defaulted_comparison_template : Error<
8705  "comparison operator template cannot be defaulted">;
8706def err_defaulted_comparison_out_of_class : Error<
8707  "%sub{select_defaulted_comparison_kind}0 can only be defaulted in a class "
8708  "definition">;
8709def err_defaulted_comparison_param : Error<
8710  "invalid parameter type for defaulted %sub{select_defaulted_comparison_kind}0"
8711  "; found %1, expected %2%select{| or %4}3">;
8712def err_defaulted_comparison_param_mismatch : Error<
8713  "parameters for defaulted %sub{select_defaulted_comparison_kind}0 "
8714  "must have the same type%diff{ (found $ vs $)|}1,2">;
8715def err_defaulted_comparison_non_const : Error<
8716  "defaulted member %sub{select_defaulted_comparison_kind}0 must be "
8717  "const-qualified">;
8718def err_defaulted_comparison_return_type_not_bool : Error<
8719  "return type for defaulted %sub{select_defaulted_comparison_kind}0 "
8720  "must be 'bool', not %1">;
8721def err_defaulted_comparison_deduced_return_type_not_auto : Error<
8722  "deduced return type for defaulted %sub{select_defaulted_comparison_kind}0 "
8723  "must be 'auto', not %1">;
8724def warn_defaulted_comparison_deleted : Warning<
8725  "explicitly defaulted %sub{select_defaulted_comparison_kind}0 is implicitly "
8726  "deleted">, InGroup<DefaultedFunctionDeleted>;
8727def err_non_first_default_compare_deletes : Error<
8728  "defaulting %select{this %sub{select_defaulted_comparison_kind}1|"
8729  "the corresponding implicit 'operator==' for this defaulted 'operator<=>'}0 "
8730  "would delete it after its first declaration">;
8731def note_defaulted_comparison_union : Note<
8732  "defaulted %0 is implicitly deleted because "
8733  "%2 is a %select{union-like class|union}1 with variant members">;
8734def note_defaulted_comparison_reference_member : Note<
8735  "defaulted %0 is implicitly deleted because "
8736  "class %1 has a reference member">;
8737def note_defaulted_comparison_ambiguous : Note<
8738  "defaulted %0 is implicitly deleted because implied %select{|'==' |'<' }1"
8739  "comparison %select{|for member %3 |for base class %3 }2is ambiguous">;
8740def note_defaulted_comparison_inaccessible : Note<
8741  "defaulted %0 is implicitly deleted because it would invoke a "
8742  "%select{private|protected}3 %4%select{ member of %6|"
8743  " member of %6 to compare member %2| to compare base class %2}1">;
8744def note_defaulted_comparison_calls_deleted : Note<
8745  "defaulted %0 is implicitly deleted because it would invoke a deleted "
8746  "comparison function%select{| for member %2| for base class %2}1">;
8747def note_defaulted_comparison_no_viable_function : Note<
8748  "defaulted %0 is implicitly deleted because there is no viable comparison "
8749  "function%select{| for member %2| for base class %2}1">;
8750def note_defaulted_comparison_no_viable_function_synthesized : Note<
8751  "three-way comparison cannot be synthesized because there is no viable "
8752  "function for %select{'=='|'<'}0 comparison">;
8753def note_defaulted_comparison_not_rewritten_callee : Note<
8754  "defaulted %0 is implicitly deleted because this non-rewritten comparison "
8755  "function would be the best match for the comparison">;
8756def note_defaulted_comparison_cannot_deduce : Note<
8757  "return type of defaulted 'operator<=>' cannot be deduced because "
8758  "return type %2 of three-way comparison for %select{|member|base class}0 %1 "
8759  "is not a standard comparison category type">;
8760def err_defaulted_comparison_cannot_deduce_undeduced_auto : Error<
8761  "return type of defaulted 'operator<=>' cannot be deduced because "
8762  "three-way comparison for %select{|member|base class}0 %1 "
8763  "has a deduced return type and is not yet defined">;
8764def note_defaulted_comparison_cannot_deduce_undeduced_auto : Note<
8765  "%select{|member|base class}0 %1 declared here">;
8766def note_defaulted_comparison_cannot_deduce_callee : Note<
8767  "selected 'operator<=>' for %select{|member|base class}0 %1 declared here">;
8768def err_incorrect_defaulted_comparison_constexpr : Error<
8769  "defaulted definition of %select{%sub{select_defaulted_comparison_kind}1|"
8770  "three-way comparison operator}0 "
8771  "cannot be declared %select{constexpr|consteval}2 because "
8772  "%select{it|the corresponding implicit 'operator=='}0 "
8773  "invokes a non-constexpr comparison function">;
8774def note_defaulted_comparison_not_constexpr : Note<
8775  "non-constexpr comparison function would be used to compare "
8776  "%select{|member %1|base class %1}0">;
8777def note_defaulted_comparison_not_constexpr_here : Note<
8778  "non-constexpr comparison function declared here">;
8779def note_in_declaration_of_implicit_equality_comparison : Note<
8780  "while declaring the corresponding implicit 'operator==' "
8781  "for this defaulted 'operator<=>'">;
8782
8783def ext_implicit_exception_spec_mismatch : ExtWarn<
8784  "function previously declared with an %select{explicit|implicit}0 exception "
8785  "specification redeclared with an %select{implicit|explicit}0 exception "
8786  "specification">, InGroup<DiagGroup<"implicit-exception-spec-mismatch">>;
8787
8788def warn_ptr_arith_precedes_bounds : Warning<
8789  "the pointer decremented by %0 refers before the beginning of the array">,
8790  InGroup<ArrayBoundsPointerArithmetic>, DefaultIgnore;
8791def warn_ptr_arith_exceeds_bounds : Warning<
8792  "the pointer incremented by %0 refers past the end of the array (that "
8793  "contains %1 element%s2)">,
8794  InGroup<ArrayBoundsPointerArithmetic>, DefaultIgnore;
8795def warn_array_index_precedes_bounds : Warning<
8796  "array index %0 is before the beginning of the array">,
8797  InGroup<ArrayBounds>;
8798def warn_array_index_exceeds_bounds : Warning<
8799  "array index %0 is past the end of the array (which contains %1 "
8800  "element%s2)">, InGroup<ArrayBounds>;
8801def note_array_declared_here : Note<
8802  "array %0 declared here">;
8803
8804def warn_printf_insufficient_data_args : Warning<
8805  "more '%%' conversions than data arguments">, InGroup<Format>;
8806def warn_printf_data_arg_not_used : Warning<
8807  "data argument not used by format string">, InGroup<FormatExtraArgs>;
8808def warn_format_invalid_conversion : Warning<
8809  "invalid conversion specifier '%0'">, InGroup<FormatInvalidSpecifier>;
8810def warn_printf_incomplete_specifier : Warning<
8811  "incomplete format specifier">, InGroup<Format>;
8812def warn_missing_format_string : Warning<
8813  "format string missing">, InGroup<Format>;
8814def warn_scanf_nonzero_width : Warning<
8815  "zero field width in scanf format string is unused">,
8816  InGroup<Format>;
8817def warn_format_conversion_argument_type_mismatch : Warning<
8818  "format specifies type %0 but the argument has "
8819  "%select{type|underlying type}2 %1">,
8820  InGroup<Format>;
8821def warn_format_conversion_argument_type_mismatch_pedantic : Extension<
8822  warn_format_conversion_argument_type_mismatch.Text>,
8823  InGroup<FormatPedantic>;
8824def warn_format_conversion_argument_type_mismatch_confusion : Warning<
8825  warn_format_conversion_argument_type_mismatch.Text>,
8826  InGroup<FormatTypeConfusion>, DefaultIgnore;
8827def warn_format_argument_needs_cast : Warning<
8828  "%select{values of type|enum values with underlying type}2 '%0' should not "
8829  "be used as format arguments; add an explicit cast to %1 instead">,
8830  InGroup<Format>;
8831def warn_format_argument_needs_cast_pedantic : Warning<
8832  warn_format_argument_needs_cast.Text>,
8833  InGroup<FormatPedantic>, DefaultIgnore;
8834def warn_printf_positional_arg_exceeds_data_args : Warning <
8835  "data argument position '%0' exceeds the number of data arguments (%1)">,
8836  InGroup<Format>;
8837def warn_format_zero_positional_specifier : Warning<
8838  "position arguments in format strings start counting at 1 (not 0)">,
8839  InGroup<Format>;
8840def warn_format_invalid_positional_specifier : Warning<
8841  "invalid position specified for %select{field width|field precision}0">,
8842  InGroup<Format>;
8843def warn_format_mix_positional_nonpositional_args : Warning<
8844  "cannot mix positional and non-positional arguments in format string">,
8845  InGroup<Format>;
8846def warn_static_array_too_small : Warning<
8847  "array argument is too small; %select{contains %0 elements|is of size %0}2,"
8848  " callee requires at least %1">,
8849  InGroup<ArrayBounds>;
8850def note_callee_static_array : Note<
8851  "callee declares array parameter as static here">;
8852def warn_empty_format_string : Warning<
8853  "format string is empty">, InGroup<FormatZeroLength>;
8854def warn_format_string_is_wide_literal : Warning<
8855  "format string should not be a wide string">, InGroup<Format>;
8856def warn_printf_format_string_contains_null_char : Warning<
8857  "format string contains '\\0' within the string body">, InGroup<Format>;
8858def warn_printf_format_string_not_null_terminated : Warning<
8859  "format string is not null-terminated">, InGroup<Format>;
8860def warn_printf_asterisk_missing_arg : Warning<
8861  "'%select{*|.*}0' specified field %select{width|precision}0 is missing a matching 'int' argument">,
8862  InGroup<Format>;
8863def warn_printf_asterisk_wrong_type : Warning<
8864  "field %select{width|precision}0 should have type %1, but argument has type %2">,
8865  InGroup<Format>;
8866def warn_printf_nonsensical_optional_amount: Warning<
8867  "%select{field width|precision}0 used with '%1' conversion specifier, resulting in undefined behavior">,
8868  InGroup<Format>;
8869def warn_printf_nonsensical_flag: Warning<
8870  "flag '%0' results in undefined behavior with '%1' conversion specifier">,
8871  InGroup<Format>;
8872def warn_format_nonsensical_length: Warning<
8873  "length modifier '%0' results in undefined behavior or no effect with '%1' conversion specifier">,
8874  InGroup<Format>;
8875def warn_format_non_standard_positional_arg: Warning<
8876  "positional arguments are not supported by ISO C">, InGroup<FormatNonStandard>, DefaultIgnore;
8877def warn_format_non_standard: Warning<
8878  "'%0' %select{length modifier|conversion specifier}1 is not supported by ISO C">,
8879  InGroup<FormatNonStandard>, DefaultIgnore;
8880def warn_format_non_standard_conversion_spec: Warning<
8881  "using length modifier '%0' with conversion specifier '%1' is not supported by ISO C">,
8882  InGroup<FormatNonStandard>, DefaultIgnore;
8883def err_invalid_mask_type_size : Error<
8884  "mask type size must be between 1-byte and 8-bytes">;
8885def warn_format_invalid_annotation : Warning<
8886  "using '%0' format specifier annotation outside of os_log()/os_trace()">,
8887  InGroup<Format>;
8888def warn_format_P_no_precision : Warning<
8889  "using '%%P' format specifier without precision">,
8890  InGroup<Format>;
8891def warn_printf_ignored_flag: Warning<
8892  "flag '%0' is ignored when flag '%1' is present">,
8893  InGroup<Format>;
8894def warn_printf_empty_objc_flag: Warning<
8895  "missing object format flag">,
8896  InGroup<Format>;
8897def warn_printf_ObjCflags_without_ObjCConversion: Warning<
8898  "object format flags cannot be used with '%0' conversion specifier">,
8899  InGroup<Format>;
8900def warn_printf_invalid_objc_flag: Warning<
8901    "'%0' is not a valid object format flag">,
8902    InGroup<Format>;
8903def warn_scanf_scanlist_incomplete : Warning<
8904  "no closing ']' for '%%[' in scanf format string">,
8905  InGroup<Format>;
8906def warn_format_bool_as_character : Warning<
8907  "using '%0' format specifier, but argument has boolean value">,
8908  InGroup<Format>;
8909def note_format_string_defined : Note<"format string is defined here">;
8910def note_format_fix_specifier : Note<"did you mean to use '%0'?">;
8911def note_printf_c_str: Note<"did you mean to call the %0 method?">;
8912def note_format_security_fixit: Note<
8913  "treat the string as an argument to avoid this">;
8914
8915def warn_null_arg : Warning<
8916  "null passed to a callee that requires a non-null argument">,
8917  InGroup<NonNull>;
8918def warn_null_ret : Warning<
8919  "null returned from %select{function|method}0 that requires a non-null return value">,
8920  InGroup<NonNull>;
8921
8922def err_lifetimebound_no_object_param : Error<
8923  "'lifetimebound' attribute cannot be applied; %select{static |non-}0member "
8924  "function has no implicit object parameter">;
8925def err_lifetimebound_ctor_dtor : Error<
8926  "'lifetimebound' attribute cannot be applied to a "
8927  "%select{constructor|destructor}0">;
8928
8929// CHECK: returning address/reference of stack memory
8930def warn_ret_stack_addr_ref : Warning<
8931  "%select{address of|reference to}0 stack memory associated with "
8932  "%select{local variable|parameter}2 %1 returned">,
8933  InGroup<ReturnStackAddress>;
8934def warn_ret_local_temp_addr_ref : Warning<
8935  "returning %select{address of|reference to}0 local temporary object">,
8936  InGroup<ReturnStackAddress>;
8937def warn_ret_addr_label : Warning<
8938  "returning address of label, which is local">,
8939  InGroup<ReturnStackAddress>;
8940def err_ret_local_block : Error<
8941  "returning block that lives on the local stack">;
8942def note_local_var_initializer : Note<
8943  "%select{via initialization of|binding reference}0 variable "
8944  "%select{%2 |}1here">;
8945def note_init_with_default_member_initalizer : Note<
8946  "initializing field %0 with default member initializer">;
8947
8948// Check for initializing a member variable with the address or a reference to
8949// a constructor parameter.
8950def warn_bind_ref_member_to_parameter : Warning<
8951  "binding reference member %0 to stack allocated "
8952  "%select{variable|parameter}2 %1">, InGroup<DanglingField>;
8953def warn_init_ptr_member_to_parameter_addr : Warning<
8954  "initializing pointer member %0 with the stack address of "
8955  "%select{variable|parameter}2 %1">, InGroup<DanglingField>;
8956def note_ref_or_ptr_member_declared_here : Note<
8957  "%select{reference|pointer}0 member declared here">;
8958
8959def err_dangling_member : Error<
8960  "%select{reference|backing array for 'std::initializer_list'}2 "
8961  "%select{|subobject of }1member %0 "
8962  "%select{binds to|is}2 a temporary object "
8963  "whose lifetime would be shorter than the lifetime of "
8964  "the constructed object">;
8965def warn_dangling_member : Warning<
8966  "%select{reference|backing array for 'std::initializer_list'}2 "
8967  "%select{|subobject of }1member %0 "
8968  "%select{binds to|is}2 a temporary object "
8969  "whose lifetime is shorter than the lifetime of the constructed object">,
8970  InGroup<DanglingField>;
8971def warn_dangling_lifetime_pointer_member : Warning<
8972  "initializing pointer member %0 to point to a temporary object "
8973  "whose lifetime is shorter than the lifetime of the constructed object">,
8974  InGroup<DanglingGsl>;
8975def note_lifetime_extending_member_declared_here : Note<
8976  "%select{%select{reference|'std::initializer_list'}0 member|"
8977  "member with %select{reference|'std::initializer_list'}0 subobject}1 "
8978  "declared here">;
8979def warn_dangling_variable : Warning<
8980  "%select{temporary %select{whose address is used as value of|"
8981  "%select{|implicitly }2bound to}4 "
8982  "%select{%select{|reference }4member of local variable|"
8983  "local %select{variable|reference}4}1|"
8984  "array backing "
8985  "%select{initializer list subobject of local variable|"
8986  "local initializer list}1}0 "
8987  "%select{%3 |}2will be destroyed at the end of the full-expression">,
8988  InGroup<Dangling>;
8989def warn_new_dangling_reference : Warning<
8990  "temporary bound to reference member of allocated object "
8991  "will be destroyed at the end of the full-expression">,
8992  InGroup<DanglingField>;
8993def warn_dangling_lifetime_pointer : Warning<
8994  "object backing the pointer "
8995  "will be destroyed at the end of the full-expression">,
8996  InGroup<DanglingGsl>;
8997def warn_new_dangling_initializer_list : Warning<
8998  "array backing "
8999  "%select{initializer list subobject of the allocated object|"
9000  "the allocated initializer list}0 "
9001  "will be destroyed at the end of the full-expression">,
9002  InGroup<DanglingInitializerList>;
9003def warn_unsupported_lifetime_extension : Warning<
9004  "sorry, lifetime extension of "
9005  "%select{temporary|backing array of initializer list}0 created "
9006  "by aggregate initialization using default member initializer "
9007  "is not supported; lifetime of %select{temporary|backing array}0 "
9008  "will end at the end of the full-expression">, InGroup<Dangling>;
9009
9010// For non-floating point, expressions of the form x == x or x != x
9011// should result in a warning, since these always evaluate to a constant.
9012// Array comparisons have similar warnings
9013def warn_comparison_always : Warning<
9014  "%select{self-|array }0comparison always evaluates to "
9015  "%select{a constant|true|false|'std::strong_ordering::equal'}1">,
9016  InGroup<TautologicalCompare>;
9017def warn_comparison_bitwise_always : Warning<
9018  "bitwise comparison always evaluates to %select{false|true}0">,
9019  InGroup<TautologicalBitwiseCompare>, DefaultIgnore;
9020def warn_comparison_bitwise_or : Warning<
9021  "bitwise or with non-zero value always evaluates to true">,
9022  InGroup<TautologicalBitwiseCompare>, DefaultIgnore;
9023def warn_tautological_overlap_comparison : Warning<
9024  "overlapping comparisons always evaluate to %select{false|true}0">,
9025  InGroup<TautologicalOverlapCompare>, DefaultIgnore;
9026def warn_depr_array_comparison : Warning<
9027  "comparison between two arrays is deprecated; "
9028  "to compare array addresses, use unary '+' to decay operands to pointers">,
9029  InGroup<DeprecatedArrayCompare>;
9030
9031def warn_stringcompare : Warning<
9032  "result of comparison against %select{a string literal|@encode}0 is "
9033  "unspecified (use an explicit string comparison function instead)">,
9034  InGroup<StringCompare>;
9035
9036def warn_identity_field_assign : Warning<
9037  "assigning %select{field|instance variable}0 to itself">,
9038  InGroup<SelfAssignmentField>;
9039
9040// Type safety attributes
9041def err_type_tag_for_datatype_not_ice : Error<
9042  "'type_tag_for_datatype' attribute requires the initializer to be "
9043  "an %select{integer|integral}0 constant expression">;
9044def err_type_tag_for_datatype_too_large : Error<
9045  "'type_tag_for_datatype' attribute requires the initializer to be "
9046  "an %select{integer|integral}0 constant expression "
9047  "that can be represented by a 64 bit integer">;
9048def err_tag_index_out_of_range : Error<
9049  "%select{type tag|argument}0 index %1 is greater than the number of arguments specified">;
9050def warn_type_tag_for_datatype_wrong_kind : Warning<
9051  "this type tag was not designed to be used with this function">,
9052  InGroup<TypeSafety>;
9053def warn_type_safety_type_mismatch : Warning<
9054  "argument type %0 doesn't match specified %1 type tag "
9055  "%select{that requires %3|}2">, InGroup<TypeSafety>;
9056def warn_type_safety_null_pointer_required : Warning<
9057  "specified %0 type tag requires a null pointer">, InGroup<TypeSafety>;
9058
9059// Generic selections.
9060def err_assoc_type_incomplete : Error<
9061  "type %0 in generic association incomplete">;
9062def err_assoc_type_nonobject : Error<
9063  "type %0 in generic association not an object type">;
9064def err_assoc_type_variably_modified : Error<
9065  "type %0 in generic association is a variably modified type">;
9066def err_assoc_compatible_types : Error<
9067  "type %0 in generic association compatible with previously specified type %1">;
9068def note_compat_assoc : Note<
9069  "compatible type %0 specified here">;
9070def err_generic_sel_no_match : Error<
9071  "controlling expression type %0 not compatible with any generic association type">;
9072def err_generic_sel_multi_match : Error<
9073  "controlling expression type %0 compatible with %1 generic association types">;
9074
9075
9076// Blocks
9077def err_blocks_disable : Error<"blocks support disabled - compile with -fblocks"
9078  " or %select{pick a deployment target that supports them|for OpenCL 2.0}0">;
9079def err_block_returning_array_function : Error<
9080  "block cannot return %select{array|function}0 type %1">;
9081
9082// Builtin annotation
9083def err_builtin_annotation_first_arg : Error<
9084  "first argument to __builtin_annotation must be an integer">;
9085def err_builtin_annotation_second_arg : Error<
9086  "second argument to __builtin_annotation must be a non-wide string constant">;
9087def err_msvc_annotation_wide_str : Error<
9088  "arguments to __annotation must be wide string constants">;
9089
9090// CFString checking
9091def err_cfstring_literal_not_string_constant : Error<
9092  "CFString literal is not a string constant">;
9093def warn_cfstring_truncated : Warning<
9094  "input conversion stopped due to an input byte that does not "
9095  "belong to the input codeset UTF-8">,
9096  InGroup<DiagGroup<"CFString-literal">>;
9097
9098// os_log checking
9099// TODO: separate diagnostic for os_trace()
9100def err_os_log_format_not_string_constant : Error<
9101  "os_log() format argument is not a string constant">;
9102def err_os_log_argument_too_big : Error<
9103  "os_log() argument %0 is too big (%1 bytes, max %2)">;
9104def warn_os_log_format_narg : Error<
9105 "os_log() '%%n' format specifier is not allowed">, DefaultError;
9106
9107// Statements.
9108def err_continue_not_in_loop : Error<
9109  "'continue' statement not in loop statement">;
9110def err_break_not_in_loop_or_switch : Error<
9111  "'break' statement not in loop or switch statement">;
9112def warn_loop_ctrl_binds_to_inner : Warning<
9113  "'%0' is bound to current loop, GCC binds it to the enclosing loop">,
9114  InGroup<GccCompat>;
9115def warn_break_binds_to_switch : Warning<
9116  "'break' is bound to loop, GCC binds it to switch">,
9117  InGroup<GccCompat>;
9118def err_default_not_in_switch : Error<
9119  "'default' statement not in switch statement">;
9120def err_case_not_in_switch : Error<"'case' statement not in switch statement">;
9121def warn_bool_switch_condition : Warning<
9122  "switch condition has boolean value">, InGroup<SwitchBool>;
9123def warn_case_value_overflow : Warning<
9124  "overflow converting case value to switch condition type (%0 to %1)">,
9125  InGroup<Switch>;
9126def err_duplicate_case : Error<"duplicate case value '%0'">;
9127def err_duplicate_case_differing_expr : Error<
9128  "duplicate case value: '%0' and '%1' both equal '%2'">;
9129def warn_case_empty_range : Warning<"empty case range specified">;
9130def warn_missing_case_for_condition :
9131  Warning<"no case matching constant switch condition '%0'">;
9132
9133def warn_def_missing_case : Warning<"%plural{"
9134  "1:enumeration value %1 not explicitly handled in switch|"
9135  "2:enumeration values %1 and %2 not explicitly handled in switch|"
9136  "3:enumeration values %1, %2, and %3 not explicitly handled in switch|"
9137  ":%0 enumeration values not explicitly handled in switch: %1, %2, %3...}0">,
9138  InGroup<SwitchEnum>, DefaultIgnore;
9139
9140def warn_missing_case : Warning<"%plural{"
9141  "1:enumeration value %1 not handled in switch|"
9142  "2:enumeration values %1 and %2 not handled in switch|"
9143  "3:enumeration values %1, %2, and %3 not handled in switch|"
9144  ":%0 enumeration values not handled in switch: %1, %2, %3...}0">,
9145  InGroup<Switch>;
9146
9147def warn_unannotated_fallthrough : Warning<
9148  "unannotated fall-through between switch labels">,
9149  InGroup<ImplicitFallthrough>, DefaultIgnore;
9150def warn_unannotated_fallthrough_per_function : Warning<
9151  "unannotated fall-through between switch labels in partly-annotated "
9152  "function">, InGroup<ImplicitFallthroughPerFunction>, DefaultIgnore;
9153def note_insert_fallthrough_fixit : Note<
9154  "insert '%0;' to silence this warning">;
9155def note_insert_break_fixit : Note<
9156  "insert 'break;' to avoid fall-through">;
9157def err_fallthrough_attr_wrong_target : Error<
9158  "%0 attribute is only allowed on empty statements">;
9159def note_fallthrough_insert_semi_fixit : Note<"did you forget ';'?">;
9160def err_fallthrough_attr_outside_switch : Error<
9161  "fallthrough annotation is outside switch statement">;
9162def err_fallthrough_attr_invalid_placement : Error<
9163  "fallthrough annotation does not directly precede switch label">;
9164def warn_fallthrough_attr_unreachable : Warning<
9165  "fallthrough annotation in unreachable code">,
9166  InGroup<ImplicitFallthrough>, DefaultIgnore;
9167
9168def warn_unreachable_default : Warning<
9169  "default label in switch which covers all enumeration values">,
9170  InGroup<CoveredSwitchDefault>, DefaultIgnore;
9171def warn_not_in_enum : Warning<"case value not in enumerated type %0">,
9172  InGroup<Switch>;
9173def warn_not_in_enum_assignment : Warning<"integer constant not in range "
9174  "of enumerated type %0">, InGroup<DiagGroup<"assign-enum">>, DefaultIgnore;
9175def err_typecheck_statement_requires_scalar : Error<
9176  "statement requires expression of scalar type (%0 invalid)">;
9177def err_typecheck_statement_requires_integer : Error<
9178  "statement requires expression of integer type (%0 invalid)">;
9179def err_multiple_default_labels_defined : Error<
9180  "multiple default labels in one switch">;
9181def err_switch_multiple_conversions : Error<
9182  "multiple conversions from switch condition type %0 to an integral or "
9183  "enumeration type">;
9184def note_switch_conversion : Note<
9185  "conversion to %select{integral|enumeration}0 type %1">;
9186def err_switch_explicit_conversion : Error<
9187  "switch condition type %0 requires explicit conversion to %1">;
9188def err_switch_incomplete_class_type : Error<
9189  "switch condition has incomplete class type %0">;
9190
9191def warn_empty_if_body : Warning<
9192  "if statement has empty body">, InGroup<EmptyBody>;
9193def warn_empty_for_body : Warning<
9194  "for loop has empty body">, InGroup<EmptyBody>;
9195def warn_empty_range_based_for_body : Warning<
9196  "range-based for loop has empty body">, InGroup<EmptyBody>;
9197def warn_empty_while_body : Warning<
9198  "while loop has empty body">, InGroup<EmptyBody>;
9199def warn_empty_switch_body : Warning<
9200  "switch statement has empty body">, InGroup<EmptyBody>;
9201def note_empty_body_on_separate_line : Note<
9202  "put the semicolon on a separate line to silence this warning">;
9203
9204def err_va_start_captured_stmt : Error<
9205  "'va_start' cannot be used in a captured statement">;
9206def err_va_start_outside_function : Error<
9207  "'va_start' cannot be used outside a function">;
9208def err_va_start_fixed_function : Error<
9209  "'va_start' used in function with fixed args">;
9210def err_va_start_used_in_wrong_abi_function : Error<
9211  "'va_start' used in %select{System V|Win64}0 ABI function">;
9212def err_ms_va_start_used_in_sysv_function : Error<
9213  "'__builtin_ms_va_start' used in System V ABI function">;
9214def warn_second_arg_of_va_start_not_last_named_param : Warning<
9215  "second argument to 'va_start' is not the last named parameter">,
9216  InGroup<Varargs>;
9217def warn_va_start_type_is_undefined : Warning<
9218  "passing %select{an object that undergoes default argument promotion|"
9219  "an object of reference type|a parameter declared with the 'register' "
9220  "keyword}0 to 'va_start' has undefined behavior">, InGroup<Varargs>;
9221def err_first_argument_to_va_arg_not_of_type_va_list : Error<
9222  "first argument to 'va_arg' is of type %0 and not 'va_list'">;
9223def err_second_parameter_to_va_arg_incomplete: Error<
9224  "second argument to 'va_arg' is of incomplete type %0">;
9225def err_second_parameter_to_va_arg_abstract: Error<
9226  "second argument to 'va_arg' is of abstract type %0">;
9227def warn_second_parameter_to_va_arg_not_pod : Warning<
9228  "second argument to 'va_arg' is of non-POD type %0">,
9229  InGroup<NonPODVarargs>, DefaultError;
9230def warn_second_parameter_to_va_arg_ownership_qualified : Warning<
9231  "second argument to 'va_arg' is of ARC ownership-qualified type %0">,
9232  InGroup<NonPODVarargs>, DefaultError;
9233def warn_second_parameter_to_va_arg_never_compatible : Warning<
9234  "second argument to 'va_arg' is of promotable type %0; this va_arg has "
9235  "undefined behavior because arguments will be promoted to %1">, InGroup<Varargs>;
9236
9237def warn_return_missing_expr : Warning<
9238  "non-void %select{function|method}1 %0 should return a value">, DefaultError,
9239  InGroup<ReturnType>;
9240def ext_return_missing_expr : ExtWarn<
9241  "non-void %select{function|method}1 %0 should return a value">, DefaultError,
9242  InGroup<ReturnType>;
9243def ext_return_has_expr : ExtWarn<
9244  "%select{void function|void method|constructor|destructor}1 %0 "
9245  "should not return a value">,
9246  DefaultError, InGroup<ReturnType>;
9247def ext_return_has_void_expr : Extension<
9248  "void %select{function|method|block}1 %0 should not return void expression">;
9249def err_return_init_list : Error<
9250  "%select{void function|void method|constructor|destructor}1 %0 "
9251  "must not return a value">;
9252def err_ctor_dtor_returns_void : Error<
9253  "%select{constructor|destructor}1 %0 must not return void expression">;
9254def warn_noreturn_function_has_return_expr : Warning<
9255  "function %0 declared 'noreturn' should not return">,
9256  InGroup<InvalidNoreturn>;
9257def warn_falloff_noreturn_function : Warning<
9258  "function declared 'noreturn' should not return">,
9259  InGroup<InvalidNoreturn>;
9260def err_noreturn_block_has_return_expr : Error<
9261  "block declared 'noreturn' should not return">;
9262def err_noreturn_missing_on_first_decl : Error<
9263  "function declared '[[noreturn]]' after its first declaration">;
9264def note_noreturn_missing_first_decl : Note<
9265  "declaration missing '[[noreturn]]' attribute is here">;
9266def err_carries_dependency_missing_on_first_decl : Error<
9267  "%select{function|parameter}0 declared '[[carries_dependency]]' "
9268  "after its first declaration">;
9269def note_carries_dependency_missing_first_decl : Note<
9270  "declaration missing '[[carries_dependency]]' attribute is here">;
9271def err_carries_dependency_param_not_function_decl : Error<
9272  "'[[carries_dependency]]' attribute only allowed on parameter in a function "
9273  "declaration or lambda">;
9274def err_block_on_nonlocal : Error<
9275  "__block attribute not allowed, only allowed on local variables">;
9276def err_block_on_vm : Error<
9277  "__block attribute not allowed on declaration with a variably modified type">;
9278def err_sizeless_nonlocal : Error<
9279  "non-local variable with sizeless type %0">;
9280
9281def err_vec_builtin_non_vector : Error<
9282 "first two arguments to %0 must be vectors">;
9283def err_vec_builtin_incompatible_vector : Error<
9284  "first two arguments to %0 must have the same type">;
9285def err_vsx_builtin_nonconstant_argument : Error<
9286  "argument %0 to %1 must be a 2-bit unsigned literal (i.e. 0, 1, 2 or 3)">;
9287
9288def err_shufflevector_nonconstant_argument : Error<
9289  "index for __builtin_shufflevector must be a constant integer">;
9290def err_shufflevector_argument_too_large : Error<
9291  "index for __builtin_shufflevector must be less than the total number "
9292  "of vector elements">;
9293
9294def err_convertvector_non_vector : Error<
9295  "first argument to __builtin_convertvector must be a vector">;
9296def err_convertvector_non_vector_type : Error<
9297  "second argument to __builtin_convertvector must be a vector type">;
9298def err_convertvector_incompatible_vector : Error<
9299  "first two arguments to __builtin_convertvector must have the same number of elements">;
9300
9301def err_first_argument_to_cwsc_not_call : Error<
9302  "first argument to __builtin_call_with_static_chain must be a non-member call expression">;
9303def err_first_argument_to_cwsc_block_call : Error<
9304  "first argument to __builtin_call_with_static_chain must not be a block call">;
9305def err_first_argument_to_cwsc_builtin_call : Error<
9306  "first argument to __builtin_call_with_static_chain must not be a builtin call">;
9307def err_first_argument_to_cwsc_pdtor_call : Error<
9308  "first argument to __builtin_call_with_static_chain must not be a pseudo-destructor call">;
9309def err_second_argument_to_cwsc_not_pointer : Error<
9310  "second argument to __builtin_call_with_static_chain must be of pointer type">;
9311
9312def err_vector_incorrect_num_initializers : Error<
9313  "%select{too many|too few}0 elements in vector initialization (expected %1 elements, have %2)">;
9314def err_altivec_empty_initializer : Error<"expected initializer">;
9315
9316def err_invalid_neon_type_code : Error<
9317  "incompatible constant for this __builtin_neon function">;
9318def err_argument_invalid_range : Error<
9319  "argument value %0 is outside the valid range [%1, %2]">;
9320def warn_argument_invalid_range : Warning<
9321  "argument value %0 is outside the valid range [%1, %2]">, DefaultError,
9322  InGroup<DiagGroup<"argument-outside-range">>;
9323def err_argument_not_multiple : Error<
9324  "argument should be a multiple of %0">;
9325def err_argument_not_power_of_2 : Error<
9326  "argument should be a power of 2">;
9327def err_argument_not_shifted_byte : Error<
9328  "argument should be an 8-bit value shifted by a multiple of 8 bits">;
9329def err_argument_not_shifted_byte_or_xxff : Error<
9330  "argument should be an 8-bit value shifted by a multiple of 8 bits, or in the form 0x??FF">;
9331def err_rotation_argument_to_cadd
9332    : Error<"argument should be the value 90 or 270">;
9333def err_rotation_argument_to_cmla
9334    : Error<"argument should be the value 0, 90, 180 or 270">;
9335def warn_neon_vector_initializer_non_portable : Warning<
9336  "vector initializers are not compatible with NEON intrinsics in big endian "
9337  "mode">, InGroup<DiagGroup<"nonportable-vector-initialization">>;
9338def note_neon_vector_initializer_non_portable : Note<
9339  "consider using vld1_%0%1() to initialize a vector from memory, or "
9340  "vcreate_%0%1() to initialize from an integer constant">;
9341def note_neon_vector_initializer_non_portable_q : Note<
9342  "consider using vld1q_%0%1() to initialize a vector from memory, or "
9343  "vcombine_%0%1(vcreate_%0%1(), vcreate_%0%1()) to initialize from integer "
9344  "constants">;
9345def err_systemz_invalid_tabort_code : Error<
9346  "invalid transaction abort code">;
9347def err_64_bit_builtin_32_bit_tgt : Error<
9348  "this builtin is only available on 64-bit targets">;
9349def err_32_bit_builtin_64_bit_tgt : Error<
9350  "this builtin is only available on 32-bit targets">;
9351def err_builtin_x64_aarch64_only : Error<
9352  "this builtin is only available on x86-64 and aarch64 targets">;
9353def err_mips_builtin_requires_dsp : Error<
9354  "this builtin requires 'dsp' ASE, please use -mdsp">;
9355def err_mips_builtin_requires_dspr2 : Error<
9356  "this builtin requires 'dsp r2' ASE, please use -mdspr2">;
9357def err_mips_builtin_requires_msa : Error<
9358  "this builtin requires 'msa' ASE, please use -mmsa">;
9359def err_ppc_builtin_only_on_pwr7 : Error<
9360  "this builtin is only valid on POWER7 or later CPUs">;
9361def err_x86_builtin_invalid_rounding : Error<
9362  "invalid rounding argument">;
9363def err_x86_builtin_invalid_scale : Error<
9364  "scale argument must be 1, 2, 4, or 8">;
9365def err_x86_builtin_tile_arg_duplicate : Error<
9366  "tile arguments must refer to different tiles">;
9367
9368def err_builtin_target_unsupported : Error<
9369  "builtin is not supported on this target">;
9370def err_builtin_longjmp_unsupported : Error<
9371  "__builtin_longjmp is not supported for the current target">;
9372def err_builtin_setjmp_unsupported : Error<
9373  "__builtin_setjmp is not supported for the current target">;
9374
9375def err_builtin_longjmp_invalid_val : Error<
9376  "argument to __builtin_longjmp must be a constant 1">;
9377def err_builtin_requires_language : Error<"'%0' is only available in %1">;
9378
9379def err_constant_integer_arg_type : Error<
9380  "argument to %0 must be a constant integer">;
9381
9382def ext_mixed_decls_code : Extension<
9383  "ISO C90 forbids mixing declarations and code">,
9384  InGroup<DiagGroup<"declaration-after-statement">>;
9385
9386def err_non_local_variable_decl_in_for : Error<
9387  "declaration of non-local variable in 'for' loop">;
9388def err_non_variable_decl_in_for : Error<
9389  "non-variable declaration in 'for' loop">;
9390def err_toomany_element_decls : Error<
9391  "only one element declaration is allowed">;
9392def err_selector_element_not_lvalue : Error<
9393  "selector element is not a valid lvalue">;
9394def err_selector_element_type : Error<
9395  "selector element type %0 is not a valid object">;
9396def err_selector_element_const_type : Error<
9397  "selector element of type %0 cannot be a constant l-value expression">;
9398def err_collection_expr_type : Error<
9399  "the type %0 is not a pointer to a fast-enumerable object">;
9400def warn_collection_expr_type : Warning<
9401  "collection expression type %0 may not respond to %1">;
9402
9403def err_invalid_conversion_between_ext_vectors : Error<
9404  "invalid conversion between ext-vector type %0 and %1">;
9405
9406def warn_duplicate_attribute_exact : Warning<
9407  "attribute %0 is already applied">, InGroup<IgnoredAttributes>;
9408
9409def warn_duplicate_attribute : Warning<
9410  "attribute %0 is already applied with different parameters">,
9411  InGroup<IgnoredAttributes>;
9412
9413def warn_sync_fetch_and_nand_semantics_change : Warning<
9414  "the semantics of this intrinsic changed with GCC "
9415  "version 4.4 - the newer semantics are provided here">,
9416  InGroup<DiagGroup<"sync-fetch-and-nand-semantics-changed">>;
9417
9418// Type
9419def ext_wchar_t_sign_spec : ExtWarn<"'%0' cannot be signed or unsigned">,
9420  InGroup<DiagGroup<"signed-unsigned-wchar">>, DefaultError;
9421def warn_receiver_forward_class : Warning<
9422  "receiver %0 is a forward class and corresponding @interface may not exist">,
9423  InGroup<ForwardClassReceiver>;
9424def note_method_sent_forward_class : Note<"method %0 is used for the forward class">;
9425def ext_missing_declspec : ExtWarn<
9426  "declaration specifier missing, defaulting to 'int'">;
9427def ext_missing_type_specifier : ExtWarn<
9428  "type specifier missing, defaults to 'int'">,
9429  InGroup<ImplicitInt>;
9430def err_decimal_unsupported : Error<
9431  "GNU decimal type extension not supported">;
9432def err_missing_type_specifier : Error<
9433  "C++ requires a type specifier for all declarations">;
9434def err_objc_array_of_interfaces : Error<
9435  "array of interface %0 is invalid (probably should be an array of pointers)">;
9436def ext_c99_array_usage : Extension<
9437  "%select{qualifier in |static |}0array size %select{||'[*] '}0is a C99 "
9438  "feature">, InGroup<C99>;
9439def err_c99_array_usage_cxx : Error<
9440  "%select{qualifier in |static |}0array size %select{||'[*] '}0is a C99 "
9441  "feature, not permitted in C++">;
9442def err_type_unsupported : Error<
9443  "%0 is not supported on this target">;
9444def err_nsconsumed_attribute_mismatch : Error<
9445  "overriding method has mismatched ns_consumed attribute on its"
9446  " parameter">;
9447def err_nsreturns_retained_attribute_mismatch : Error<
9448  "overriding method has mismatched ns_returns_%select{not_retained|retained}0"
9449  " attributes">;
9450def warn_nsconsumed_attribute_mismatch : Warning<
9451  err_nsconsumed_attribute_mismatch.Text>, InGroup<NSConsumedMismatch>;
9452def warn_nsreturns_retained_attribute_mismatch : Warning<
9453  err_nsreturns_retained_attribute_mismatch.Text>, InGroup<NSReturnsMismatch>;
9454
9455def note_getter_unavailable : Note<
9456  "or because setter is declared here, but no getter method %0 is found">;
9457def err_invalid_protocol_qualifiers : Error<
9458  "invalid protocol qualifiers on non-ObjC type">;
9459def warn_ivar_use_hidden : Warning<
9460  "local declaration of %0 hides instance variable">,
9461   InGroup<ShadowIvar>;
9462def warn_direct_initialize_call : Warning<
9463  "explicit call to +initialize results in duplicate call to +initialize">,
9464   InGroup<ExplicitInitializeCall>;
9465def warn_direct_super_initialize_call : Warning<
9466  "explicit call to [super initialize] should only be in implementation "
9467  "of +initialize">,
9468   InGroup<ExplicitInitializeCall>;
9469def err_ivar_use_in_class_method : Error<
9470  "instance variable %0 accessed in class method">;
9471def err_private_ivar_access : Error<"instance variable %0 is private">,
9472  AccessControl;
9473def err_protected_ivar_access : Error<"instance variable %0 is protected">,
9474  AccessControl;
9475def warn_maynot_respond : Warning<"%0 may not respond to %1">;
9476def ext_typecheck_base_super : Warning<
9477  "method parameter type "
9478  "%diff{$ does not match super class method parameter type $|"
9479  "does not match super class method parameter type}0,1">,
9480   InGroup<SuperSubClassMismatch>, DefaultIgnore;
9481def warn_missing_method_return_type : Warning<
9482  "method has no return type specified; defaults to 'id'">,
9483  InGroup<MissingMethodReturnType>, DefaultIgnore;
9484def warn_direct_ivar_access : Warning<"instance variable %0 is being "
9485  "directly accessed">, InGroup<DiagGroup<"direct-ivar-access">>, DefaultIgnore;
9486
9487// Spell-checking diagnostics
9488def err_unknown_typename : Error<
9489  "unknown type name %0">;
9490def err_unknown_type_or_class_name_suggest : Error<
9491  "unknown %select{type|class}1 name %0; did you mean %2?">;
9492def err_unknown_typename_suggest : Error<
9493  "unknown type name %0; did you mean %1?">;
9494def err_unknown_nested_typename_suggest : Error<
9495  "no type named %0 in %1; did you mean %select{|simply }2%3?">;
9496def err_no_member_suggest : Error<"no member named %0 in %1; did you mean %select{|simply }2%3?">;
9497def err_undeclared_use_suggest : Error<
9498  "use of undeclared %0; did you mean %1?">;
9499def err_undeclared_var_use_suggest : Error<
9500  "use of undeclared identifier %0; did you mean %1?">;
9501def err_no_template : Error<"no template named %0">;
9502def err_no_template_suggest : Error<"no template named %0; did you mean %1?">;
9503def err_no_member_template : Error<"no template named %0 in %1">;
9504def err_no_member_template_suggest : Error<
9505  "no template named %0 in %1; did you mean %select{|simply }2%3?">;
9506def err_non_template_in_template_id : Error<
9507  "%0 does not name a template but is followed by template arguments">;
9508def err_non_template_in_template_id_suggest : Error<
9509  "%0 does not name a template but is followed by template arguments; "
9510  "did you mean %1?">;
9511def err_non_template_in_member_template_id_suggest : Error<
9512  "member %0 of %1 is not a template; did you mean %select{|simply }2%3?">;
9513def note_non_template_in_template_id_found : Note<
9514  "non-template declaration found by name lookup">;
9515def err_mem_init_not_member_or_class_suggest : Error<
9516  "initializer %0 does not name a non-static data member or base "
9517  "class; did you mean the %select{base class|member}1 %2?">;
9518def err_field_designator_unknown_suggest : Error<
9519  "field designator %0 does not refer to any field in type %1; did you mean "
9520  "%2?">;
9521def err_typecheck_member_reference_ivar_suggest : Error<
9522  "%0 does not have a member named %1; did you mean %2?">;
9523def err_property_not_found_suggest : Error<
9524  "property %0 not found on object of type %1; did you mean %2?">;
9525def err_class_property_found : Error<
9526  "property %0 is a class property; did you mean to access it with class '%1'?">;
9527def err_ivar_access_using_property_syntax_suggest : Error<
9528  "property %0 not found on object of type %1; did you mean to access instance variable %2?">;
9529def warn_property_access_suggest : Warning<
9530"property %0 not found on object of type %1; did you mean to access property %2?">,
9531InGroup<PropertyAccessDotSyntax>;
9532def err_property_found_suggest : Error<
9533  "property %0 found on object of type %1; did you mean to access "
9534  "it with the \".\" operator?">;
9535def err_undef_interface_suggest : Error<
9536  "cannot find interface declaration for %0; did you mean %1?">;
9537def warn_undef_interface_suggest : Warning<
9538  "cannot find interface declaration for %0; did you mean %1?">;
9539def err_undef_superclass_suggest : Error<
9540  "cannot find interface declaration for %0, superclass of %1; did you mean "
9541  "%2?">;
9542def err_undeclared_protocol_suggest : Error<
9543  "cannot find protocol declaration for %0; did you mean %1?">;
9544def note_base_class_specified_here : Note<
9545  "base class %0 specified here">;
9546def err_using_directive_suggest : Error<
9547  "no namespace named %0; did you mean %1?">;
9548def err_using_directive_member_suggest : Error<
9549  "no namespace named %0 in %1; did you mean %select{|simply }2%3?">;
9550def note_namespace_defined_here : Note<"namespace %0 defined here">;
9551def err_sizeof_pack_no_pack_name_suggest : Error<
9552  "%0 does not refer to the name of a parameter pack; did you mean %1?">;
9553def note_parameter_pack_here : Note<"parameter pack %0 declared here">;
9554
9555def err_uncasted_use_of_unknown_any : Error<
9556  "%0 has unknown type; cast it to its declared type to use it">;
9557def err_uncasted_call_of_unknown_any : Error<
9558  "%0 has unknown return type; cast the call to its declared return type">;
9559def err_uncasted_send_to_unknown_any_method : Error<
9560  "no known method %select{%objcinstance1|%objcclass1}0; cast the "
9561  "message send to the method's return type">;
9562def err_unsupported_unknown_any_decl : Error<
9563  "%0 has unknown type, which is not supported for this kind of declaration">;
9564def err_unsupported_unknown_any_expr : Error<
9565  "unsupported expression with unknown type">;
9566def err_unsupported_unknown_any_call : Error<
9567  "call to unsupported expression with unknown type">;
9568def err_unknown_any_addrof : Error<
9569  "the address of a declaration with unknown type "
9570  "can only be cast to a pointer type">;
9571def err_unknown_any_addrof_call : Error<
9572  "address-of operator cannot be applied to a call to a function with "
9573  "unknown return type">;
9574def err_unknown_any_var_function_type : Error<
9575  "variable %0 with unknown type cannot be given a function type">;
9576def err_unknown_any_function : Error<
9577  "function %0 with unknown type must be given a function type">;
9578
9579def err_filter_expression_integral : Error<
9580  "filter expression has non-integral type %0">;
9581
9582def err_non_asm_stmt_in_naked_function : Error<
9583  "non-ASM statement in naked function is not supported">;
9584def err_asm_naked_this_ref : Error<
9585  "'this' pointer references not allowed in naked functions">;
9586def err_asm_naked_parm_ref : Error<
9587  "parameter references not allowed in naked functions">;
9588
9589// OpenCL warnings and errors.
9590def err_invalid_astype_of_different_size : Error<
9591  "invalid reinterpretation: sizes of %0 and %1 must match">;
9592def err_static_kernel : Error<
9593  "kernel functions cannot be declared static">;
9594def err_method_kernel : Error<
9595  "kernel functions cannot be class members">;
9596def err_template_kernel : Error<
9597  "kernel functions cannot be used in a template declaration, instantiation or specialization">;
9598def err_opencl_ptrptr_kernel_param : Error<
9599  "kernel parameter cannot be declared as a pointer to a pointer">;
9600def err_kernel_arg_address_space : Error<
9601  "pointer arguments to kernel functions must reside in '__global', "
9602  "'__constant' or '__local' address space">;
9603def err_opencl_ext_vector_component_invalid_length : Error<
9604  "vector component access has invalid length %0.  Supported: 1,2,3,4,8,16.">;
9605def err_opencl_function_variable : Error<
9606  "%select{non-kernel function|function scope}0 variable cannot be declared in %1 address space">;
9607def err_opencl_addrspace_scope : Error<
9608  "variables in the %0 address space can only be declared in the outermost "
9609  "scope of a kernel function">;
9610def err_static_function_scope : Error<
9611  "variables in function scope cannot be declared static">;
9612def err_opencl_bitfields : Error<
9613  "bit-fields are not supported in OpenCL">;
9614def err_opencl_vla : Error<
9615  "variable length arrays are not supported in OpenCL">;
9616def err_opencl_scalar_type_rank_greater_than_vector_type : Error<
9617    "scalar operand type has greater rank than the type of the vector "
9618    "element. (%0 and %1)">;
9619def err_bad_kernel_param_type : Error<
9620  "%0 cannot be used as the type of a kernel parameter">;
9621def err_opencl_implicit_function_decl : Error<
9622  "implicit declaration of function %0 is invalid in OpenCL">;
9623def err_record_with_pointers_kernel_param : Error<
9624  "%select{struct|union}0 kernel parameters may not contain pointers">;
9625def note_within_field_of_type : Note<
9626  "within field of type %0 declared here">;
9627def note_illegal_field_declared_here : Note<
9628  "field of illegal %select{type|pointer type}0 %1 declared here">;
9629def err_opencl_type_struct_or_union_field : Error<
9630  "the %0 type cannot be used to declare a structure or union field">;
9631def err_event_t_addr_space_qual : Error<
9632  "the event_t type can only be used with __private address space qualifier">;
9633def err_expected_kernel_void_return_type : Error<
9634  "kernel must have void return type">;
9635def err_sampler_initializer_not_integer : Error<
9636  "sampler_t initialization requires 32-bit integer, not %0">;
9637def warn_sampler_initializer_invalid_bits : Warning<
9638  "sampler initializer has invalid %0 bits">, InGroup<SpirCompat>, DefaultIgnore;
9639def err_sampler_argument_required : Error<
9640  "sampler_t variable required - got %0">;
9641def err_wrong_sampler_addressspace: Error<
9642  "sampler type cannot be used with the __local and __global address space qualifiers">;
9643def err_opencl_nonconst_global_sampler : Error<
9644  "global sampler requires a const or constant address space qualifier">;
9645def err_opencl_cast_non_zero_to_event_t : Error<
9646  "cannot cast non-zero value '%0' to 'event_t'">;
9647def err_opencl_global_invalid_addr_space : Error<
9648  "%select{program scope|static local|extern}0 variable must reside in %1 address space">;
9649def err_missing_actual_pipe_type : Error<
9650  "missing actual type specifier for pipe">;
9651def err_reference_pipe_type : Error <
9652  "pipes packet types cannot be of reference type">;
9653def err_opencl_no_main : Error<"%select{function|kernel}0 cannot be called 'main'">;
9654def err_opencl_kernel_attr :
9655  Error<"attribute %0 can only be applied to an OpenCL kernel function">;
9656def err_opencl_return_value_with_address_space : Error<
9657  "return value cannot be qualified with address space">;
9658def err_opencl_constant_no_init : Error<
9659  "variable in constant address space must be initialized">;
9660def err_opencl_atomic_init: Error<
9661  "atomic variable can be %select{assigned|initialized}0 to a variable only "
9662  "in global address space">;
9663def err_opencl_implicit_vector_conversion : Error<
9664  "implicit conversions between vector types (%0 and %1) are not permitted">;
9665def err_opencl_invalid_type_array : Error<
9666  "array of %0 type is invalid in OpenCL">;
9667def err_opencl_ternary_with_block : Error<
9668  "block type cannot be used as expression in ternary expression in OpenCL">;
9669def err_opencl_pointer_to_type : Error<
9670  "pointer to type %0 is invalid in OpenCL">;
9671def err_opencl_type_can_only_be_used_as_function_parameter : Error <
9672  "type %0 can only be used as a function parameter in OpenCL">;
9673def warn_opencl_attr_deprecated_ignored : Warning <
9674  "%0 attribute is deprecated and ignored in OpenCL version %1">,
9675  InGroup<IgnoredAttributes>;
9676def err_opencl_variadic_function : Error<
9677  "invalid prototype, variadic arguments are not allowed in OpenCL">;
9678def err_opencl_requires_extension : Error<
9679  "use of %select{type|declaration}0 %1 requires %2 extension to be enabled">;
9680def warn_opencl_generic_address_space_arg : Warning<
9681  "passing non-generic address space pointer to %0"
9682  " may cause dynamic conversion affecting performance">,
9683  InGroup<Conversion>, DefaultIgnore;
9684
9685// OpenCL v2.0 s6.13.6 -- Builtin Pipe Functions
9686def err_opencl_builtin_pipe_first_arg : Error<
9687  "first argument to %0 must be a pipe type">;
9688def err_opencl_builtin_pipe_arg_num : Error<
9689  "invalid number of arguments to function: %0">;
9690def err_opencl_builtin_pipe_invalid_arg : Error<
9691  "invalid argument type to function %0 (expecting %1 having %2)">;
9692def err_opencl_builtin_pipe_invalid_access_modifier : Error<
9693  "invalid pipe access modifier (expecting %0)">;
9694
9695// OpenCL access qualifier
9696def err_opencl_invalid_access_qualifier : Error<
9697  "access qualifier can only be used for pipe and image type">;
9698def err_opencl_invalid_read_write : Error<
9699  "access qualifier %0 can not be used for %1 %select{|prior to OpenCL version 2.0}2">;
9700def err_opencl_multiple_access_qualifiers : Error<
9701  "multiple access qualifiers">;
9702def note_opencl_typedef_access_qualifier : Note<
9703  "previously declared '%0' here">;
9704
9705// OpenCL v2.0 s6.12.5 Blocks restrictions
9706def err_opencl_block_storage_type : Error<
9707  "the __block storage type is not permitted">;
9708def err_opencl_invalid_block_declaration : Error<
9709  "invalid block variable declaration - must be %select{const qualified|initialized}0">;
9710def err_opencl_extern_block_declaration : Error<
9711  "invalid block variable declaration - using 'extern' storage class is disallowed">;
9712def err_opencl_block_ref_block : Error<
9713  "cannot refer to a block inside block">;
9714
9715// OpenCL v2.0 s6.13.9 - Address space qualifier functions.
9716def err_opencl_builtin_to_addr_arg_num : Error<
9717  "invalid number of arguments to function: %0">;
9718def err_opencl_builtin_to_addr_invalid_arg : Error<
9719  "invalid argument %0 to function: %1, expecting a generic pointer argument">;
9720
9721// OpenCL v2.0 s6.13.17 Enqueue kernel restrictions.
9722def err_opencl_enqueue_kernel_incorrect_args : Error<
9723  "illegal call to enqueue_kernel, incorrect argument types">;
9724def err_opencl_enqueue_kernel_local_size_args : Error<
9725  "mismatch in number of block parameters and local size arguments passed">;
9726def err_opencl_enqueue_kernel_invalid_local_size_type : Error<
9727  "illegal call to enqueue_kernel, parameter needs to be specified as integer type">;
9728def err_opencl_enqueue_kernel_blocks_non_local_void_args : Error<
9729  "blocks used in enqueue_kernel call are expected to have parameters of type 'local void*'">;
9730def err_opencl_enqueue_kernel_blocks_no_args : Error<
9731  "blocks with parameters are not accepted in this prototype of enqueue_kernel call">;
9732
9733def err_opencl_builtin_expected_type : Error<
9734  "illegal call to %0, expected %1 argument type">;
9735
9736// OpenCL v2.2 s2.1.2.3 - Vector Component Access
9737def ext_opencl_ext_vector_type_rgba_selector: ExtWarn<
9738  "vector component name '%0' is an OpenCL version 2.2 feature">,
9739  InGroup<OpenCLUnsupportedRGBA>;
9740
9741def err_openclcxx_placement_new : Error<
9742  "use of placement new requires explicit declaration">;
9743
9744// MIG routine annotations.
9745def warn_mig_server_routine_does_not_return_kern_return_t : Warning<
9746  "'mig_server_routine' attribute only applies to routines that return a kern_return_t">,
9747  InGroup<IgnoredAttributes>;
9748} // end of sema category
9749
9750let CategoryName = "OpenMP Issue" in {
9751// OpenMP support.
9752def err_omp_expected_var_arg : Error<
9753  "%0 is not a global variable, static local variable or static data member">;
9754def err_omp_expected_var_arg_suggest : Error<
9755  "%0 is not a global variable, static local variable or static data member; "
9756  "did you mean %1">;
9757def err_omp_global_var_arg : Error<
9758  "arguments of '#pragma omp %0' must have %select{global storage|static storage duration}1">;
9759def err_omp_ref_type_arg : Error<
9760  "arguments of '#pragma omp %0' cannot be of reference type %1">;
9761def err_omp_region_not_file_context : Error<
9762  "directive must be at file or namespace scope">;
9763def err_omp_var_scope : Error<
9764  "'#pragma omp %0' must appear in the scope of the %q1 variable declaration">;
9765def err_omp_var_used : Error<
9766  "'#pragma omp %0' must precede all references to variable %q1">;
9767def err_omp_var_thread_local : Error<
9768  "variable %0 cannot be threadprivate because it is %select{thread-local|a global named register variable}1">;
9769def err_omp_private_incomplete_type : Error<
9770  "a private variable with incomplete type %0">;
9771def err_omp_firstprivate_incomplete_type : Error<
9772  "a firstprivate variable with incomplete type %0">;
9773def err_omp_lastprivate_incomplete_type : Error<
9774  "a lastprivate variable with incomplete type %0">;
9775def err_omp_reduction_incomplete_type : Error<
9776  "a reduction list item with incomplete type %0">;
9777def err_omp_unexpected_clause_value : Error<
9778  "expected %0 in OpenMP clause '%1'">;
9779def err_omp_expected_var_name_member_expr : Error<
9780  "expected variable name%select{| or data member of current class}0">;
9781def err_omp_expected_var_name_member_expr_or_array_item : Error<
9782  "expected variable name%select{|, data member of current class}0, array element or array section">;
9783def err_omp_expected_addressable_lvalue_or_array_item : Error<
9784  "expected addressable lvalue expression, array element%select{ or array section|, array section or array shaping expression}0%select{| of non 'omp_depend_t' type}1">;
9785def err_omp_expected_named_var_member_or_array_expression: Error<
9786  "expected expression containing only member accesses and/or array sections based on named variables">;
9787def err_omp_bit_fields_forbidden_in_clause : Error<
9788  "bit fields cannot be used to specify storage in a '%0' clause">;
9789def err_array_section_does_not_specify_contiguous_storage : Error<
9790  "array section does not specify contiguous storage">;
9791def err_omp_union_type_not_allowed : Error<
9792  "mapping of union members is not allowed">;
9793def err_omp_expected_access_to_data_field : Error<
9794  "expected access to data field">;
9795def err_omp_multiple_array_items_in_map_clause : Error<
9796  "multiple array elements associated with the same variable are not allowed in map clauses of the same construct">;
9797def err_omp_duplicate_map_type_modifier : Error<
9798  "same map type modifier has been specified more than once">;
9799def err_omp_pointer_mapped_along_with_derived_section : Error<
9800  "pointer cannot be mapped along with a section derived from itself">;
9801def err_omp_original_storage_is_shared_and_does_not_contain : Error<
9802  "original storage of expression in data environment is shared but data environment do not fully contain mapped expression storage">;
9803def err_omp_same_pointer_dereferenced : Error<
9804  "same pointer dereferenced in multiple different ways in map clause expressions">;
9805def note_omp_task_predetermined_firstprivate_here : Note<
9806  "predetermined as a firstprivate in a task construct here">;
9807def err_omp_threadprivate_incomplete_type : Error<
9808  "threadprivate variable with incomplete type %0">;
9809def err_omp_no_dsa_for_variable : Error<
9810  "variable %0 must have explicitly specified data sharing attributes">;
9811def err_omp_defaultmap_no_attr_for_variable : Error<
9812  "variable %0 must have explicitly specified data sharing attributes, data mapping attributes, or in an is_device_ptr clause">;
9813def note_omp_default_dsa_none : Note<
9814  "explicit data sharing attribute requested here">;
9815def note_omp_defaultmap_attr_none : Note<
9816  "explicit data sharing attribute, data mapping attribute, or is_device_ptr clause requested here">;
9817def err_omp_wrong_dsa : Error<
9818  "%0 variable cannot be %1">;
9819def err_omp_variably_modified_type_not_supported : Error<
9820  "arguments of OpenMP clause '%0' in '#pragma omp %2' directive cannot be of variably-modified type %1">;
9821def note_omp_explicit_dsa : Note<
9822  "defined as %0">;
9823def note_omp_predetermined_dsa : Note<
9824  "%select{static data member is predetermined as shared|"
9825  "variable with static storage duration is predetermined as shared|"
9826  "loop iteration variable is predetermined as private|"
9827  "loop iteration variable is predetermined as linear|"
9828  "loop iteration variable is predetermined as lastprivate|"
9829  "constant variable is predetermined as shared|"
9830  "global variable is predetermined as shared|"
9831  "non-shared variable in a task construct is predetermined as firstprivate|"
9832  "variable with automatic storage duration is predetermined as private}0"
9833  "%select{|; perhaps you forget to enclose 'omp %2' directive into a parallel or another task region?}1">;
9834def note_omp_implicit_dsa : Note<
9835  "implicitly determined as %0">;
9836def err_omp_loop_var_dsa : Error<
9837  "loop iteration variable in the associated loop of 'omp %1' directive may not be %0, predetermined as %2">;
9838def err_omp_not_for : Error<
9839  "%select{statement after '#pragma omp %1' must be a for loop|"
9840  "expected %2 for loops after '#pragma omp %1'%select{|, but found only %4}3}0">;
9841def note_omp_collapse_ordered_expr : Note<
9842  "as specified in %select{'collapse'|'ordered'|'collapse' and 'ordered'}0 clause%select{||s}0">;
9843def err_omp_negative_expression_in_clause : Error<
9844  "argument to '%0' clause must be a %select{non-negative|strictly positive}1 integer value">;
9845def err_omp_not_integral : Error<
9846  "expression must have integral or unscoped enumeration "
9847  "type, not %0">;
9848def err_omp_threadprivate_in_target : Error<
9849  "threadprivate variables cannot be used in target constructs">;
9850def err_omp_incomplete_type : Error<
9851  "expression has incomplete class type %0">;
9852def err_omp_explicit_conversion : Error<
9853  "expression requires explicit conversion from %0 to %1">;
9854def note_omp_conversion_here : Note<
9855  "conversion to %select{integral|enumeration}0 type %1 declared here">;
9856def err_omp_ambiguous_conversion : Error<
9857  "ambiguous conversion from type %0 to an integral or unscoped "
9858  "enumeration type">;
9859def err_omp_iterator_not_integral_or_pointer : Error<
9860  "expected integral or pointer type as the iterator-type, not %0">;
9861def err_omp_iterator_step_not_integral : Error<
9862  "iterator step expression %0 is not the integral expression">;
9863def err_omp_iterator_step_constant_zero : Error<
9864  "iterator step expression %0 evaluates to 0">;
9865def err_omp_required_access : Error<
9866  "%0 variable must be %1">;
9867def err_omp_const_variable : Error<
9868  "const-qualified variable cannot be %0">;
9869def err_omp_const_not_mutable_variable : Error<
9870  "const-qualified variable without mutable fields cannot be %0">;
9871def err_omp_const_list_item : Error<
9872  "const-qualified list item cannot be %0">;
9873def err_omp_linear_incomplete_type : Error<
9874  "a linear variable with incomplete type %0">;
9875def err_omp_linear_expected_int_or_ptr : Error<
9876  "argument of a linear clause should be of integral or pointer "
9877  "type, not %0">;
9878def warn_omp_linear_step_zero : Warning<
9879  "zero linear step (%0 %select{|and other variables in clause }1should probably be const)">,
9880  InGroup<OpenMPClauses>;
9881def warn_omp_alignment_not_power_of_two : Warning<
9882  "aligned clause will be ignored because the requested alignment is not a power of 2">,
9883  InGroup<OpenMPClauses>;
9884def err_omp_invalid_target_decl : Error<
9885  "%0 used in declare target directive is not a variable or a function name">;
9886def err_omp_declare_target_multiple : Error<
9887  "%0 appears multiple times in clauses on the same declare target directive">;
9888def err_omp_declare_target_to_and_link : Error<
9889  "%0 must not appear in both clauses 'to' and 'link'">;
9890def warn_omp_not_in_target_context : Warning<
9891  "declaration is not declared in any declare target region">,
9892  InGroup<OpenMPTarget>;
9893def err_omp_function_in_link_clause : Error<
9894  "function name is not allowed in 'link' clause">;
9895def err_omp_aligned_expected_array_or_ptr : Error<
9896  "argument of aligned clause should be array"
9897  "%select{ or pointer|, pointer, reference to array or reference to pointer}1"
9898  ", not %0">;
9899def err_omp_used_in_clause_twice : Error<
9900  "%select{a variable|a parameter|'this'}0 cannot appear in more than one %1 clause">;
9901def err_omp_local_var_in_threadprivate_init : Error<
9902  "variable with local storage in initial value of threadprivate variable">;
9903def err_omp_loop_not_canonical_init : Error<
9904  "initialization clause of OpenMP for loop is not in canonical form "
9905  "('var = init' or 'T var = init')">;
9906def ext_omp_loop_not_canonical_init : ExtWarn<
9907  "initialization clause of OpenMP for loop is not in canonical form "
9908  "('var = init' or 'T var = init')">, InGroup<OpenMPLoopForm>;
9909def err_omp_loop_not_canonical_cond : Error<
9910  "condition of OpenMP for loop must be a relational comparison "
9911  "('<', '<=', '>', %select{or '>='|'>=', or '!='}0) of loop variable %1">;
9912def err_omp_loop_not_canonical_incr : Error<
9913  "increment clause of OpenMP for loop must perform simple addition "
9914  "or subtraction on loop variable %0">;
9915def err_omp_loop_variable_type : Error<
9916  "variable must be of integer or %select{pointer|random access iterator}0 type">;
9917def err_omp_loop_incr_not_compatible : Error<
9918  "increment expression must cause %0 to %select{decrease|increase}1 "
9919  "on each iteration of OpenMP for loop">;
9920def note_omp_loop_cond_requres_compatible_incr : Note<
9921  "loop step is expected to be %select{negative|positive}0 due to this condition">;
9922def err_omp_loop_diff_cxx : Error<
9923  "could not calculate number of iterations calling 'operator-' with "
9924  "upper and lower loop bounds">;
9925def err_omp_loop_cannot_use_stmt : Error<
9926  "'%0' statement cannot be used in OpenMP for loop">;
9927def err_omp_simd_region_cannot_use_stmt : Error<
9928  "'%0' statement cannot be used in OpenMP simd region">;
9929def warn_omp_loop_64_bit_var : Warning<
9930  "OpenMP loop iteration variable cannot have more than 64 bits size and will be narrowed">,
9931  InGroup<OpenMPLoopForm>;
9932def err_omp_unknown_reduction_identifier : Error<
9933  "incorrect reduction identifier, expected one of '+', '-', '*', '&', '|', '^', "
9934  "'&&', '||', 'min' or 'max' or declare reduction for type %0">;
9935def err_omp_not_resolved_reduction_identifier : Error<
9936  "unable to resolve declare reduction construct for type %0">;
9937def err_omp_reduction_ref_type_arg : Error<
9938  "argument of OpenMP clause '%0' must reference the same object in all threads">;
9939def err_omp_clause_not_arithmetic_type_arg : Error<
9940  "arguments of OpenMP clause '%0' for 'min' or 'max' must be of %select{scalar|arithmetic}1 type">;
9941def err_omp_clause_floating_type_arg : Error<
9942  "arguments of OpenMP clause '%0' with bitwise operators cannot be of floating type">;
9943def err_omp_once_referenced : Error<
9944  "variable can appear only once in OpenMP '%0' clause">;
9945def err_omp_once_referenced_in_target_update : Error<
9946  "variable can appear only once in OpenMP 'target update' construct">;
9947def note_omp_referenced : Note<
9948  "previously referenced here">;
9949def err_omp_reduction_in_task : Error<
9950  "reduction variables may not be accessed in an explicit task">;
9951def err_omp_reduction_id_not_compatible : Error<
9952  "list item of type %0 is not valid for specified reduction operation: unable to provide default initialization value">;
9953def err_omp_reduction_identifier_mismatch : Error<
9954  "in_reduction variable must have the same reduction operation as in a task_reduction clause">;
9955def note_omp_previous_reduction_identifier : Note<
9956  "previously marked as task_reduction with different reduction operation">;
9957def err_omp_prohibited_region : Error<
9958  "region cannot be%select{| closely}0 nested inside '%1' region"
9959  "%select{|; perhaps you forget to enclose 'omp %3' directive into a parallel region?|"
9960  "; perhaps you forget to enclose 'omp %3' directive into a for or a parallel for region with 'ordered' clause?|"
9961  "; perhaps you forget to enclose 'omp %3' directive into a target region?|"
9962  "; perhaps you forget to enclose 'omp %3' directive into a teams region?|"
9963  "; perhaps you forget to enclose 'omp %3' directive into a for, simd, for simd, parallel for, or parallel for simd region?}2">;
9964def err_omp_prohibited_region_simd : Error<
9965  "OpenMP constructs may not be nested inside a simd region%select{| except for ordered simd, simd, scan, or atomic directive}0">;
9966def err_omp_prohibited_region_atomic : Error<
9967  "OpenMP constructs may not be nested inside an atomic region">;
9968def err_omp_prohibited_region_critical_same_name : Error<
9969  "cannot nest 'critical' regions having the same name %0">;
9970def note_omp_previous_critical_region : Note<
9971  "previous 'critical' region starts here">;
9972def err_omp_several_directives_in_region : Error<
9973  "exactly one '%0' directive must appear in the loop body of an enclosing directive">;
9974def note_omp_previous_directive : Note<
9975  "previous '%0' directive used here">;
9976def err_omp_sections_not_compound_stmt : Error<
9977  "the statement for '#pragma omp sections' must be a compound statement">;
9978def err_omp_parallel_sections_not_compound_stmt : Error<
9979  "the statement for '#pragma omp parallel sections' must be a compound statement">;
9980def err_omp_orphaned_section_directive : Error<
9981  "%select{orphaned 'omp section' directives are prohibited, it|'omp section' directive}0"
9982  " must be closely nested to a sections region%select{|, not a %1 region}0">;
9983def err_omp_sections_substmt_not_section : Error<
9984  "statement in 'omp sections' directive must be enclosed into a section region">;
9985def err_omp_parallel_sections_substmt_not_section : Error<
9986  "statement in 'omp parallel sections' directive must be enclosed into a section region">;
9987def err_omp_parallel_reduction_in_task_firstprivate : Error<
9988  "argument of a reduction clause of a %0 construct must not appear in a firstprivate clause on a task construct">;
9989def err_omp_atomic_read_not_expression_statement : Error<
9990  "the statement for 'atomic read' must be an expression statement of form 'v = x;',"
9991  " where v and x are both lvalue expressions with scalar type">;
9992def note_omp_atomic_read_write: Note<
9993  "%select{expected an expression statement|expected built-in assignment operator|expected expression of scalar type|expected lvalue expression}0">;
9994def err_omp_atomic_write_not_expression_statement : Error<
9995  "the statement for 'atomic write' must be an expression statement of form 'x = expr;',"
9996  " where x is a lvalue expression with scalar type">;
9997def err_omp_atomic_update_not_expression_statement : Error<
9998  "the statement for 'atomic update' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x',"
9999  " where x is an l-value expression with scalar type">;
10000def err_omp_atomic_not_expression_statement : Error<
10001  "the statement for 'atomic' must be an expression statement of form '++x;', '--x;', 'x++;', 'x--;', 'x binop= expr;', 'x = x binop expr' or 'x = expr binop x',"
10002  " where x is an l-value expression with scalar type">;
10003def note_omp_atomic_update: Note<
10004  "%select{expected an expression statement|expected built-in binary or unary operator|expected unary decrement/increment operation|"
10005  "expected expression of scalar type|expected assignment expression|expected built-in binary operator|"
10006  "expected one of '+', '*', '-', '/', '&', '^', '%|', '<<', or '>>' built-in operations|expected in right hand side of expression}0">;
10007def err_omp_atomic_capture_not_expression_statement : Error<
10008  "the statement for 'atomic capture' must be an expression statement of form 'v = ++x;', 'v = --x;', 'v = x++;', 'v = x--;', 'v = x binop= expr;', 'v = x = x binop expr' or 'v = x = expr binop x',"
10009  " where x and v are both l-value expressions with scalar type">;
10010def err_omp_atomic_capture_not_compound_statement : Error<
10011  "the statement for 'atomic capture' must be a compound statement of form '{v = x; x binop= expr;}', '{x binop= expr; v = x;}',"
10012  " '{v = x; x = x binop expr;}', '{v = x; x = expr binop x;}', '{x = x binop expr; v = x;}', '{x = expr binop x; v = x;}' or '{v = x; x = expr;}',"
10013  " '{v = x; x++;}', '{v = x; ++x;}', '{++x; v = x;}', '{x++; v = x;}', '{v = x; x--;}', '{v = x; --x;}', '{--x; v = x;}', '{x--; v = x;}'"
10014  " where x is an l-value expression with scalar type">;
10015def note_omp_atomic_capture: Note<
10016  "%select{expected assignment expression|expected compound statement|expected exactly two expression statements|expected in right hand side of the first expression}0">;
10017def err_omp_atomic_several_clauses : Error<
10018  "directive '#pragma omp atomic' cannot contain more than one 'read', 'write', 'update' or 'capture' clause">;
10019def err_omp_several_mem_order_clauses : Error<
10020  "directive '#pragma omp %0' cannot contain more than one %select{'seq_cst', 'relaxed', |}1'acq_rel', 'acquire' or 'release' clause">;
10021def err_omp_atomic_incompatible_mem_order_clause : Error<
10022  "directive '#pragma omp atomic%select{ %0|}1' cannot be used with '%2' clause">;
10023def note_omp_previous_mem_order_clause : Note<
10024  "'%0' clause used here">;
10025def err_omp_target_contains_not_only_teams : Error<
10026  "target construct with nested teams region contains statements outside of the teams construct">;
10027def note_omp_nested_teams_construct_here : Note<
10028  "nested teams construct here">;
10029def note_omp_nested_statement_here : Note<
10030  "%select{statement|directive}0 outside teams construct here">;
10031def err_omp_single_copyprivate_with_nowait : Error<
10032  "the 'copyprivate' clause must not be used with the 'nowait' clause">;
10033def note_omp_nowait_clause_here : Note<
10034  "'nowait' clause is here">;
10035def err_omp_single_decl_in_declare_simd_variant : Error<
10036  "single declaration is expected after 'declare %select{simd|variant}0' directive">;
10037def err_omp_function_expected : Error<
10038  "'#pragma omp declare %select{simd|variant}0' can only be applied to functions">;
10039def err_omp_wrong_cancel_region : Error<
10040  "one of 'for', 'parallel', 'sections' or 'taskgroup' is expected">;
10041def err_omp_parent_cancel_region_nowait : Error<
10042  "parent region for 'omp %select{cancellation point|cancel}0' construct cannot be nowait">;
10043def err_omp_parent_cancel_region_ordered : Error<
10044  "parent region for 'omp %select{cancellation point|cancel}0' construct cannot be ordered">;
10045def err_omp_reduction_wrong_type : Error<"reduction type cannot be %select{qualified with 'const', 'volatile' or 'restrict'|a function|a reference|an array}0 type">;
10046def err_omp_wrong_var_in_declare_reduction : Error<"only %select{'omp_priv' or 'omp_orig'|'omp_in' or 'omp_out'}0 variables are allowed in %select{initializer|combiner}0 expression">;
10047def err_omp_declare_reduction_redefinition : Error<"redefinition of user-defined reduction for type %0">;
10048def err_omp_mapper_wrong_type : Error<
10049  "mapper type must be of struct, union or class type">;
10050def err_omp_declare_mapper_wrong_var : Error<
10051  "only variable %0 is allowed in map clauses of this 'omp declare mapper' directive">;
10052def err_omp_declare_mapper_redefinition : Error<
10053  "redefinition of user-defined mapper for type %0 with name %1">;
10054def err_omp_invalid_mapper: Error<
10055  "cannot find a valid user-defined mapper for type %0 with name %1">;
10056def err_omp_array_section_use : Error<"OpenMP array section is not allowed here">;
10057def err_omp_array_shaping_use : Error<"OpenMP array shaping operation is not allowed here">;
10058def err_omp_iterator_use : Error<"OpenMP iterator is not allowed here">;
10059def err_omp_typecheck_section_value : Error<
10060  "subscripted value is not an array or pointer">;
10061def err_omp_typecheck_section_not_integer : Error<
10062  "array section %select{lower bound|length}0 is not an integer">;
10063def err_omp_typecheck_shaping_not_integer : Error<
10064  "array shaping operation dimension is not an integer">;
10065def err_omp_shaping_dimension_not_positive : Error<
10066  "array shaping dimension is evaluated to a non-positive value %0">;
10067def err_omp_section_function_type : Error<
10068  "section of pointer to function type %0">;
10069def warn_omp_section_is_char : Warning<"array section %select{lower bound|length}0 is of type 'char'">,
10070  InGroup<CharSubscript>, DefaultIgnore;
10071def err_omp_section_incomplete_type : Error<
10072  "section of pointer to incomplete type %0">;
10073def err_omp_section_not_subset_of_array : Error<
10074  "array section must be a subset of the original array">;
10075def err_omp_section_length_negative : Error<
10076  "section length is evaluated to a negative value %0">;
10077def err_omp_section_stride_non_positive : Error<
10078  "section stride is evaluated to a non-positive value %0">;
10079def err_omp_section_length_undefined : Error<
10080  "section length is unspecified and cannot be inferred because subscripted value is %select{not an array|an array of unknown bound}0">;
10081def err_omp_wrong_linear_modifier : Error<
10082  "expected %select{'val' modifier|one of 'ref', val' or 'uval' modifiers}0">;
10083def err_omp_wrong_linear_modifier_non_reference : Error<
10084  "variable of non-reference type %0 can be used only with 'val' modifier, but used with '%1'">;
10085def err_omp_wrong_simdlen_safelen_values : Error<
10086  "the value of 'simdlen' parameter must be less than or equal to the value of the 'safelen' parameter">;
10087def err_omp_wrong_if_directive_name_modifier : Error<
10088  "directive name modifier '%0' is not allowed for '#pragma omp %1'">;
10089def err_omp_no_more_if_clause : Error<
10090  "no more 'if' clause is allowed">;
10091def err_omp_unnamed_if_clause : Error<
10092  "expected%select{| one of}0 %1 directive name modifier%select{|s}0">;
10093def note_omp_previous_named_if_clause : Note<
10094  "previous clause with directive name modifier specified here">;
10095def err_omp_ordered_directive_with_param : Error<
10096  "'ordered' directive %select{without any clauses|with 'threads' clause}0 cannot be closely nested inside ordered region with specified parameter">;
10097def err_omp_ordered_directive_without_param : Error<
10098  "'ordered' directive with 'depend' clause cannot be closely nested inside ordered region without specified parameter">;
10099def note_omp_ordered_param : Note<
10100  "'ordered' clause%select{| with specified parameter}0">;
10101def err_omp_expected_base_var_name : Error<
10102  "expected variable name as a base of the array %select{subscript|section}0">;
10103def err_omp_map_shared_storage : Error<
10104  "variable already marked as mapped in current construct">;
10105def err_omp_invalid_map_type_for_directive : Error<
10106  "%select{map type '%1' is not allowed|map type must be specified}0 for '#pragma omp %2'">;
10107def err_omp_no_clause_for_directive : Error<
10108  "expected at least one %0 clause for '#pragma omp %1'">;
10109def err_omp_threadprivate_in_clause : Error<
10110  "threadprivate variables are not allowed in '%0' clause">;
10111def err_omp_wrong_ordered_loop_count : Error<
10112  "the parameter of the 'ordered' clause must be greater than or equal to the parameter of the 'collapse' clause">;
10113def note_collapse_loop_count : Note<
10114  "parameter of the 'collapse' clause">;
10115def err_omp_clauses_mutually_exclusive : Error<
10116  "'%0' and '%1' clause are mutually exclusive and may not appear on the same directive">;
10117def note_omp_previous_clause : Note<
10118  "'%0' clause is specified here">;
10119def err_omp_hint_clause_no_name : Error<
10120  "the name of the construct must be specified in presence of 'hint' clause">;
10121def err_omp_critical_with_hint : Error<
10122  "constructs with the same name must have a 'hint' clause with the same value">;
10123def note_omp_critical_hint_here : Note<
10124  "%select{|previous }0'hint' clause with value '%1'">;
10125def note_omp_critical_no_hint : Note<
10126  "%select{|previous }0directive with no 'hint' clause specified">;
10127def err_omp_depend_clause_thread_simd : Error<
10128  "'depend' clauses cannot be mixed with '%0' clause">;
10129def err_omp_depend_sink_expected_loop_iteration : Error<
10130  "expected%select{| %1}0 loop iteration variable">;
10131def err_omp_depend_sink_unexpected_expr : Error<
10132  "unexpected expression: number of expressions is larger than the number of associated loops">;
10133def err_omp_depend_sink_expected_plus_minus : Error<
10134  "expected '+' or '-' operation">;
10135def err_omp_depend_sink_source_not_allowed : Error<
10136  "'depend(%select{source|sink:vec}0)' clause%select{|s}0 cannot be mixed with 'depend(%select{sink:vec|source}0)' clause%select{s|}0">;
10137def err_omp_depend_zero_length_array_section_not_allowed : Error<
10138  "zero-length array section is not allowed in 'depend' clause">;
10139def err_omp_depend_sink_source_with_modifier : Error<
10140  "depend modifier cannot be used with 'sink' or 'source' depend type">;
10141def err_omp_depend_modifier_not_iterator : Error<
10142  "expected iterator specification as depend modifier">;
10143def err_omp_linear_ordered : Error<
10144  "'linear' clause cannot be specified along with 'ordered' clause with a parameter">;
10145def err_omp_unexpected_schedule_modifier : Error<
10146  "modifier '%0' cannot be used along with modifier '%1'">;
10147def err_omp_schedule_nonmonotonic_static : Error<
10148  "'nonmonotonic' modifier can only be specified with 'dynamic' or 'guided' schedule kind">;
10149def err_omp_simple_clause_incompatible_with_ordered : Error<
10150  "'%0' clause with '%1' modifier cannot be specified if an 'ordered' clause is specified">;
10151def err_omp_ordered_simd : Error<
10152  "'ordered' clause with a parameter can not be specified in '#pragma omp %0' directive">;
10153def err_omp_variable_in_given_clause_and_dsa : Error<
10154  "%0 variable cannot be in a %1 clause in '#pragma omp %2' directive">;
10155def err_omp_param_or_this_in_clause : Error<
10156  "expected reference to one of the parameters of function %0%select{| or 'this'}1">;
10157def err_omp_expected_uniform_param : Error<
10158  "expected a reference to a parameter specified in a 'uniform' clause">;
10159def err_omp_expected_int_param : Error<
10160  "expected a reference to an integer-typed parameter">;
10161def err_omp_at_least_one_motion_clause_required : Error<
10162  "expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'">;
10163def err_omp_usedeviceptr_not_a_pointer : Error<
10164  "expected pointer or reference to pointer in 'use_device_ptr' clause">;
10165def err_omp_argument_type_isdeviceptr : Error <
10166  "expected pointer, array, reference to pointer, or reference to array in 'is_device_ptr clause'">;
10167def warn_omp_nesting_simd : Warning<
10168  "OpenMP only allows an ordered construct with the simd clause nested in a simd construct">,
10169  InGroup<SourceUsesOpenMP>;
10170def err_omp_orphaned_device_directive : Error<
10171  "orphaned 'omp %0' directives are prohibited"
10172  "; perhaps you forget to enclose the directive into a "
10173  "%select{|||target |teams|for, simd, for simd, parallel for, or parallel for simd }1region?">;
10174def err_omp_reduction_non_addressable_expression : Error<
10175  "expected addressable reduction item for the task-based directives">;
10176def err_omp_reduction_with_nogroup : Error<
10177  "'reduction' clause cannot be used with 'nogroup' clause">;
10178def err_omp_reduction_vla_unsupported : Error<
10179  "cannot generate code for reduction on %select{|array section, which requires a }0variable length array">;
10180def err_omp_linear_distribute_var_non_loop_iteration : Error<
10181  "only loop iteration variables are allowed in 'linear' clause in distribute directives">;
10182def warn_omp_non_trivial_type_mapped : Warning<
10183  "Type %0 is not trivially copyable and not guaranteed to be mapped correctly">,
10184  InGroup<OpenMPMapping>;
10185def err_omp_requires_clause_redeclaration : Error <
10186  "Only one %0 clause can appear on a requires directive in a single translation unit">;
10187def note_omp_requires_previous_clause : Note <
10188  "%0 clause previously used here">;
10189def err_omp_directive_before_requires : Error <
10190  "'%0' region encountered before requires directive with '%1' clause">;
10191def note_omp_requires_encountered_directive : Note <
10192  "'%0' previously encountered here">;
10193def err_omp_invalid_scope : Error <
10194  "'#pragma omp %0' directive must appear only in file scope">;
10195def note_omp_invalid_length_on_this_ptr_mapping : Note <
10196  "expected length on mapping of 'this' array section expression to be '1'">;
10197def note_omp_invalid_lower_bound_on_this_ptr_mapping : Note <
10198  "expected lower bound on mapping of 'this' array section expression to be '0' or not specified">;
10199def note_omp_invalid_subscript_on_this_ptr_map : Note <
10200  "expected 'this' subscript expression on map clause to be 'this[0]'">;
10201def err_omp_invalid_map_this_expr : Error <
10202  "invalid 'this' expression on 'map' clause">;
10203def err_omp_implied_type_not_found : Error<
10204  "'%0' type not found; include <omp.h>">;
10205def err_omp_expected_omp_depend_t_lvalue : Error<
10206  "expected lvalue expression%select{ of 'omp_depend_t' type, not %1|}0">;
10207def err_omp_depobj_expected : Error<
10208  "expected depobj expression">;
10209def err_omp_depobj_single_clause_expected : Error<
10210  "exactly one of 'depend', 'destroy', or 'update' clauses is expected">;
10211def err_omp_scan_single_clause_expected : Error<
10212  "exactly one of 'inclusive' or 'exclusive' clauses is expected">;
10213def err_omp_inclusive_exclusive_not_reduction : Error<
10214  "the list item must appear in 'reduction' clause with the 'inscan' modifier "
10215  "of the parent directive">;
10216def err_omp_reduction_not_inclusive_exclusive : Error<
10217  "the inscan reduction list item must appear as a list item in an 'inclusive' or"
10218  " 'exclusive' clause on an inner 'omp scan' directive">;
10219def err_omp_wrong_inscan_reduction : Error<
10220  "'inscan' modifier can be used only in 'omp for', 'omp simd', 'omp for simd',"
10221  " 'omp parallel for', or 'omp parallel for simd' directive">;
10222def err_omp_inscan_reduction_expected : Error<
10223  "expected 'reduction' clause with the 'inscan' modifier">;
10224def note_omp_previous_inscan_reduction : Note<
10225  "'reduction' clause with 'inscan' modifier is used here">;
10226def err_omp_expected_predefined_allocator : Error<
10227  "expected one of the predefined allocators for the variables with the static "
10228  "storage: 'omp_default_mem_alloc', 'omp_large_cap_mem_alloc', "
10229  "'omp_const_mem_alloc', 'omp_high_bw_mem_alloc', 'omp_low_lat_mem_alloc', "
10230  "'omp_cgroup_mem_alloc', 'omp_pteam_mem_alloc' or 'omp_thread_mem_alloc'">;
10231def warn_omp_used_different_allocator : Warning<
10232  "allocate directive specifies %select{default|'%1'}0 allocator while "
10233  "previously used %select{default|'%3'}2">,
10234  InGroup<OpenMPClauses>;
10235def note_omp_previous_allocator : Note<
10236  "previous allocator is specified here">;
10237def err_expected_allocator_clause : Error<"expected an 'allocator' clause "
10238  "inside of the target region; provide an 'allocator' clause or use 'requires'"
10239  " directive with the 'dynamic_allocators' clause">;
10240def err_expected_allocator_expression : Error<"expected an allocator expression "
10241  "inside of the target region; provide an allocator expression or use 'requires'"
10242  " directive with the 'dynamic_allocators' clause">;
10243def warn_omp_allocate_thread_on_task_target_directive : Warning<
10244  "allocator with the 'thread' trait access has unspecified behavior on '%0' directive">,
10245  InGroup<OpenMPClauses>;
10246def err_omp_expected_private_copy_for_allocate : Error<
10247  "the referenced item is not found in any private clause on the same directive">;
10248def err_omp_stmt_depends_on_loop_counter : Error<
10249  "the loop %select{initializer|condition}0 expression depends on the current loop control variable">;
10250def err_omp_invariant_or_linear_dependency : Error<
10251  "expected loop invariant expression or '<invariant1> * %0 + <invariant2>' kind of expression">;
10252def err_omp_wrong_dependency_iterator_type : Error<
10253  "expected an integer or a pointer type of the outer loop counter '%0' for non-rectangular nests">;
10254def err_device_unsupported_type : Error <
10255  "%0 requires %1 bit size %2 type support, but device '%3' does not support it">;
10256def err_omp_lambda_capture_in_declare_target_not_to : Error<
10257  "variable captured in declare target region must appear in a to clause">;
10258def err_omp_device_type_mismatch : Error<
10259  "'device_type(%0)' does not match previously specified 'device_type(%1)' for the same declaration">;
10260def err_omp_wrong_device_function_call : Error<
10261  "function with 'device_type(%0)' is not available on %select{device|host}1">;
10262def note_omp_marked_device_type_here : Note<"marked as 'device_type(%0)' here">;
10263def warn_omp_declare_target_after_first_use : Warning<
10264  "declaration marked as declare target after first use, it may lead to incorrect results">,
10265  InGroup<OpenMPTarget>;
10266def err_omp_declare_variant_incompat_attributes : Error<
10267  "'#pragma omp declare variant' is not compatible with any target-specific attributes">;
10268def warn_omp_declare_variant_score_not_constant
10269    : Warning<"score expressions in the OpenMP context selector need to be "
10270              "constant; %0 is not and will be ignored">,
10271      InGroup<SourceUsesOpenMP>;
10272def err_omp_declare_variant_user_condition_not_constant
10273    : Error<"the user condition in the OpenMP context selector needs to be "
10274            "constant; %0 is not">;
10275def warn_omp_declare_variant_after_used : Warning<
10276  "'#pragma omp declare variant' cannot be applied for function after first "
10277  "usage; the original function might be used">, InGroup<SourceUsesOpenMP>;
10278def warn_omp_declare_variant_after_emitted : Warning<
10279  "'#pragma omp declare variant' cannot be applied to the function that was defined already;"
10280  " the original function might be used">, InGroup<SourceUsesOpenMP>;
10281def err_omp_declare_variant_doesnt_support : Error<
10282  "'#pragma omp declare variant' does not "
10283  "support %select{function templates|virtual functions|"
10284  "deduced return types|constructors|destructors|deleted functions|"
10285  "defaulted functions|constexpr functions|consteval function}0">;
10286def err_omp_declare_variant_diff : Error<
10287  "function with '#pragma omp declare variant' has a different %select{calling convention"
10288  "|return type|constexpr specification|inline specification|storage class|"
10289  "linkage}0">;
10290def err_omp_declare_variant_incompat_types : Error<
10291  "variant in '#pragma omp declare variant' with type %0 is incompatible with type %1"
10292  >;
10293def warn_omp_declare_variant_marked_as_declare_variant : Warning<
10294  "variant function in '#pragma omp declare variant' is itself marked as '#pragma omp declare variant'"
10295  >, InGroup<SourceUsesOpenMP>;
10296def note_omp_marked_declare_variant_here : Note<"marked as 'declare variant' here">;
10297def err_omp_one_defaultmap_each_category: Error<
10298  "at most one defaultmap clause for each variable-category can appear on the directive">;
10299def err_omp_lastprivate_conditional_non_scalar : Error<
10300  "expected list item of scalar type in 'lastprivate' clause with 'conditional' modifier"
10301  >;
10302def err_omp_flush_order_clause_and_list : Error<
10303  "'flush' directive with memory order clause '%0' cannot have the list">;
10304def note_omp_flush_order_clause_here : Note<
10305  "memory order clause '%0' is specified here">;
10306def err_omp_non_lvalue_in_map_or_motion_clauses: Error<
10307  "expected addressable lvalue in '%0' clause">;
10308def err_omp_var_expected : Error<
10309  "expected variable of the '%0' type%select{|, not %2}1">;
10310def warn_nested_declare_variant
10311    : Warning<"nesting `omp begin/end declare variant` is not supported yet; "
10312              "nested context ignored">,
10313      InGroup<SourceUsesOpenMP>;
10314def err_omp_non_pointer_type_array_shaping_base : Error<
10315  "expected expression with a pointer to a complete type as a base of an array "
10316  "shaping operation">;
10317def err_omp_reduction_task_not_parallel_or_worksharing : Error<
10318  "'reduction' clause with 'task' modifier allowed only on non-simd parallel or"
10319  " worksharing constructs">;
10320def err_omp_expected_array_alloctraits : Error<
10321  "expected constant sized array of 'omp_alloctrait_t' elements, not %0">;
10322def err_omp_predefined_allocator_with_traits : Error<
10323  "predefined allocator cannot have traits specified">;
10324def note_omp_predefined_allocator : Note<
10325  "predefined trait '%0' used here">;
10326def err_omp_nonpredefined_allocator_without_traits : Error<
10327  "non-predefined allocator must have traits specified">;
10328def err_omp_allocator_used_in_clauses : Error<
10329  "allocators used in 'uses_allocators' clause cannot appear in other "
10330  "data-sharing or data-mapping attribute clauses">;
10331def err_omp_allocator_not_in_uses_allocators : Error<
10332  "allocator must be specified in the 'uses_allocators' clause">;
10333} // end of OpenMP category
10334
10335let CategoryName = "Related Result Type Issue" in {
10336// Objective-C related result type compatibility
10337def warn_related_result_type_compatibility_class : Warning<
10338  "method is expected to return an instance of its class type "
10339  "%diff{$, but is declared to return $|"
10340  ", but is declared to return different type}0,1">;
10341def warn_related_result_type_compatibility_protocol : Warning<
10342  "protocol method is expected to return an instance of the implementing "
10343  "class, but is declared to return %0">;
10344def note_related_result_type_family : Note<
10345  "%select{overridden|current}0 method is part of the '%select{|alloc|copy|init|"
10346  "mutableCopy|new|autorelease|dealloc|finalize|release|retain|retainCount|"
10347  "self}1' method family%select{| and is expected to return an instance of its "
10348  "class type}0">;
10349def note_related_result_type_overridden : Note<
10350  "overridden method returns an instance of its class type">;
10351def note_related_result_type_inferred : Note<
10352  "%select{class|instance}0 method %1 is assumed to return an instance of "
10353  "its receiver type (%2)">;
10354def note_related_result_type_explicit : Note<
10355  "%select{overridden|current}0 method is explicitly declared 'instancetype'"
10356  "%select{| and is expected to return an instance of its class type}0">;
10357def err_invalid_type_for_program_scope_var : Error<
10358  "the %0 type cannot be used to declare a program scope variable">;
10359
10360}
10361
10362let CategoryName = "Modules Issue" in {
10363def err_module_decl_in_module_map_module : Error<
10364  "'module' declaration found while building module from module map">;
10365def err_module_decl_in_header_module : Error<
10366  "'module' declaration found while building header unit">;
10367def err_module_interface_implementation_mismatch : Error<
10368  "missing 'export' specifier in module declaration while "
10369  "building module interface">;
10370def err_current_module_name_mismatch : Error<
10371  "module name '%0' specified on command line does not match name of module">;
10372def err_module_redefinition : Error<
10373  "redefinition of module '%0'">;
10374def note_prev_module_definition : Note<"previously defined here">;
10375def note_prev_module_definition_from_ast_file : Note<"module loaded from '%0'">;
10376def err_module_not_defined : Error<
10377  "definition of module '%0' is not available; use -fmodule-file= to specify "
10378  "path to precompiled module interface">;
10379def err_module_redeclaration : Error<
10380  "translation unit contains multiple module declarations">;
10381def note_prev_module_declaration : Note<"previous module declaration is here">;
10382def err_module_declaration_missing : Error<
10383  "missing 'export module' declaration in module interface unit">;
10384def err_module_declaration_missing_after_global_module_introducer : Error<
10385  "missing 'module' declaration at end of global module fragment "
10386  "introduced here">;
10387def err_module_private_specialization : Error<
10388  "%select{template|partial|member}0 specialization cannot be "
10389  "declared __module_private__">;
10390def err_module_private_local : Error<
10391  "%select{local variable|parameter|typedef}0 %1 cannot be declared "
10392  "__module_private__">;
10393def err_module_private_local_class : Error<
10394  "local %select{struct|interface|union|class|enum}0 cannot be declared "
10395  "__module_private__">;
10396def err_module_unimported_use : Error<
10397  "%select{declaration|definition|default argument|"
10398  "explicit specialization|partial specialization}0 of %1 must be imported "
10399  "from module '%2' before it is required">;
10400def err_module_unimported_use_header : Error<
10401  "%select{missing '#include'|missing '#include %3'}2; "
10402  "%select{||default argument of |explicit specialization of |"
10403  "partial specialization of }0%1 must be "
10404  "%select{declared|defined|defined|declared|declared}0 "
10405  "before it is used">;
10406def err_module_unimported_use_multiple : Error<
10407  "%select{declaration|definition|default argument|"
10408  "explicit specialization|partial specialization}0 of %1 must be imported "
10409  "from one of the following modules before it is required:%2">;
10410def note_unreachable_entity : Note<
10411  "%select{declaration|definition|default argument declared|"
10412  "explicit specialization declared|partial specialization declared}0 here "
10413  "is not %select{visible|reachable|reachable|reachable|reachable|reachable}0">;
10414def ext_module_import_in_extern_c : ExtWarn<
10415  "import of C++ module '%0' appears within extern \"C\" language linkage "
10416  "specification">, DefaultError,
10417  InGroup<DiagGroup<"module-import-in-extern-c">>;
10418def err_module_import_not_at_top_level_fatal : Error<
10419  "import of module '%0' appears within %1">, DefaultFatal;
10420def ext_module_import_not_at_top_level_noop : ExtWarn<
10421  "redundant #include of module '%0' appears within %1">, DefaultError,
10422  InGroup<DiagGroup<"modules-import-nested-redundant">>;
10423def note_module_import_not_at_top_level : Note<"%0 begins here">;
10424def err_module_self_import : Error<
10425  "import of module '%0' appears within same top-level module '%1'">;
10426def err_module_import_in_implementation : Error<
10427  "@import of module '%0' in implementation of '%1'; use #import">;
10428
10429// C++ Modules
10430def err_module_decl_not_at_start : Error<
10431  "module declaration must occur at the start of the translation unit">;
10432def note_global_module_introducer_missing : Note<
10433  "add 'module;' to the start of the file to introduce a "
10434  "global module fragment">;
10435def err_export_within_anonymous_namespace : Error<
10436  "export declaration appears within anonymous namespace">;
10437def note_anonymous_namespace : Note<"anonymous namespace begins here">;
10438def ext_export_no_name_block : ExtWarn<
10439  "ISO C++20 does not permit %select{an empty|a static_assert}0 declaration "
10440  "to appear in an export block">, InGroup<ExportUnnamed>;
10441def ext_export_no_names : ExtWarn<
10442  "ISO C++20 does not permit a declaration that does not introduce any names "
10443  "to be exported">, InGroup<ExportUnnamed>;
10444def note_export : Note<"export block begins here">;
10445def err_export_no_name : Error<
10446  "%select{empty|static_assert|asm}0 declaration cannot be exported">;
10447def ext_export_using_directive : ExtWarn<
10448  "ISO C++20 does not permit using directive to be exported">,
10449  InGroup<DiagGroup<"export-using-directive">>;
10450def err_export_within_export : Error<
10451  "export declaration appears within another export declaration">;
10452def err_export_internal : Error<
10453  "declaration of %0 with internal linkage cannot be exported">;
10454def err_export_using_internal : Error<
10455  "using declaration referring to %0 with internal linkage cannot be exported">;
10456def err_export_not_in_module_interface : Error<
10457  "export declaration can only be used within a module interface unit"
10458  "%select{ after the module declaration|}0">;
10459def err_export_in_private_module_fragment : Error<
10460  "export declaration cannot be used in a private module fragment">;
10461def note_private_module_fragment : Note<
10462  "private module fragment begins here">;
10463def err_private_module_fragment_not_module : Error<
10464  "private module fragment declaration with no preceding module declaration">;
10465def err_private_module_fragment_redefined : Error<
10466  "private module fragment redefined">;
10467def err_private_module_fragment_not_module_interface : Error<
10468  "private module fragment in module implementation unit">;
10469def note_not_module_interface_add_export : Note<
10470  "add 'export' here if this is intended to be a module interface unit">;
10471
10472def ext_equivalent_internal_linkage_decl_in_modules : ExtWarn<
10473  "ambiguous use of internal linkage declaration %0 defined in multiple modules">,
10474  InGroup<DiagGroup<"modules-ambiguous-internal-linkage">>;
10475def note_equivalent_internal_linkage_decl : Note<
10476  "declared here%select{ in module '%1'|}0">;
10477
10478def note_redefinition_modules_same_file : Note<
10479  "'%0' included multiple times, additional include site in header from module '%1'">;
10480def note_redefinition_include_same_file : Note<
10481  "'%0' included multiple times, additional include site here">;
10482}
10483
10484let CategoryName = "Coroutines Issue" in {
10485def err_return_in_coroutine : Error<
10486  "return statement not allowed in coroutine; did you mean 'co_return'?">;
10487def note_declared_coroutine_here : Note<
10488  "function is a coroutine due to use of '%0' here">;
10489def err_coroutine_objc_method : Error<
10490  "Objective-C methods as coroutines are not yet supported">;
10491def err_coroutine_unevaluated_context : Error<
10492  "'%0' cannot be used in an unevaluated context">;
10493def err_coroutine_within_handler : Error<
10494  "'%0' cannot be used in the handler of a try block">;
10495def err_coroutine_outside_function : Error<
10496  "'%0' cannot be used outside a function">;
10497def err_coroutine_invalid_func_context : Error<
10498  "'%1' cannot be used in %select{a constructor|a destructor"
10499  "|the 'main' function|a constexpr function"
10500  "|a function with a deduced return type|a varargs function"
10501  "|a consteval function}0">;
10502def err_implied_coroutine_type_not_found : Error<
10503  "%0 type was not found; include <experimental/coroutine> before defining "
10504  "a coroutine">;
10505def err_implicit_coroutine_std_nothrow_type_not_found : Error<
10506  "std::nothrow was not found; include <new> before defining a coroutine which "
10507  "uses get_return_object_on_allocation_failure()">;
10508def err_malformed_std_nothrow : Error<
10509  "std::nothrow must be a valid variable declaration">;
10510def err_malformed_std_coroutine_handle : Error<
10511  "std::experimental::coroutine_handle must be a class template">;
10512def err_coroutine_handle_missing_member : Error<
10513  "std::experimental::coroutine_handle missing a member named '%0'">;
10514def err_malformed_std_coroutine_traits : Error<
10515  "'std::experimental::coroutine_traits' must be a class template">;
10516def err_implied_std_coroutine_traits_promise_type_not_found : Error<
10517  "this function cannot be a coroutine: %q0 has no member named 'promise_type'">;
10518def err_implied_std_coroutine_traits_promise_type_not_class : Error<
10519  "this function cannot be a coroutine: %0 is not a class">;
10520def err_coroutine_promise_type_incomplete : Error<
10521  "this function cannot be a coroutine: %0 is an incomplete type">;
10522def err_coroutine_type_missing_specialization : Error<
10523  "this function cannot be a coroutine: missing definition of "
10524  "specialization %0">;
10525def err_coroutine_promise_incompatible_return_functions : Error<
10526  "the coroutine promise type %0 declares both 'return_value' and 'return_void'">;
10527def err_coroutine_promise_requires_return_function : Error<
10528  "the coroutine promise type %0 must declare either 'return_value' or 'return_void'">;
10529def note_coroutine_promise_implicit_await_transform_required_here : Note<
10530  "call to 'await_transform' implicitly required by 'co_await' here">;
10531def note_coroutine_promise_suspend_implicitly_required : Note<
10532  "call to '%select{initial_suspend|final_suspend}0' implicitly "
10533  "required by the %select{initial suspend point|final suspend point}0">;
10534def err_coroutine_promise_unhandled_exception_required : Error<
10535  "%0 is required to declare the member 'unhandled_exception()'">;
10536def warn_coroutine_promise_unhandled_exception_required_with_exceptions : Warning<
10537  "%0 is required to declare the member 'unhandled_exception()' when exceptions are enabled">,
10538  InGroup<CoroutineMissingUnhandledException>;
10539def err_coroutine_promise_get_return_object_on_allocation_failure : Error<
10540  "%0: 'get_return_object_on_allocation_failure()' must be a static member function">;
10541def err_seh_in_a_coroutine_with_cxx_exceptions : Error<
10542  "cannot use SEH '__try' in a coroutine when C++ exceptions are enabled">;
10543def err_coroutine_promise_new_requires_nothrow : Error<
10544  "%0 is required to have a non-throwing noexcept specification when the promise "
10545   "type declares 'get_return_object_on_allocation_failure()'">;
10546def note_coroutine_promise_call_implicitly_required : Note<
10547  "call to %0 implicitly required by coroutine function here">;
10548def err_await_suspend_invalid_return_type : Error<
10549  "return type of 'await_suspend' is required to be 'void' or 'bool' (have %0)"
10550>;
10551def note_await_ready_no_bool_conversion : Note<
10552  "return type of 'await_ready' is required to be contextually convertible to 'bool'"
10553>;
10554def warn_coroutine_handle_address_invalid_return_type : Warning <
10555  "return type of 'coroutine_handle<>::address should be 'void*' (have %0) in order to get capability with existing async C API.">,
10556  InGroup<Coroutine>;
10557def err_coroutine_promise_final_suspend_requires_nothrow : Error<
10558  "the expression 'co_await __promise.final_suspend()' is required to be non-throwing"
10559>;
10560def note_coroutine_function_declare_noexcept : Note<
10561  "must be declared with 'noexcept'"
10562>;
10563} // end of coroutines issue category
10564
10565let CategoryName = "Documentation Issue" in {
10566def warn_not_a_doxygen_trailing_member_comment : Warning<
10567  "not a Doxygen trailing comment">, InGroup<Documentation>, DefaultIgnore;
10568} // end of documentation issue category
10569
10570let CategoryName = "Nullability Issue" in {
10571
10572def warn_mismatched_nullability_attr : Warning<
10573  "nullability specifier %0 conflicts with existing specifier %1">,
10574  InGroup<Nullability>;
10575
10576def warn_nullability_declspec : Warning<
10577  "nullability specifier %0 cannot be applied "
10578  "to non-pointer type %1; did you mean to apply the specifier to the "
10579  "%select{pointer|block pointer|member pointer|function pointer|"
10580  "member function pointer}2?">,
10581  InGroup<NullabilityDeclSpec>,
10582  DefaultError;
10583
10584def note_nullability_here : Note<"%0 specified here">;
10585
10586def err_nullability_nonpointer : Error<
10587  "nullability specifier %0 cannot be applied to non-pointer type %1">;
10588
10589def warn_nullability_lost : Warning<
10590  "implicit conversion from nullable pointer %0 to non-nullable pointer "
10591  "type %1">,
10592  InGroup<NullableToNonNullConversion>, DefaultIgnore;
10593def warn_zero_as_null_pointer_constant : Warning<
10594  "zero as null pointer constant">,
10595  InGroup<DiagGroup<"zero-as-null-pointer-constant">>, DefaultIgnore;
10596
10597def err_nullability_cs_multilevel : Error<
10598  "nullability keyword %0 cannot be applied to multi-level pointer type %1">;
10599def note_nullability_type_specifier : Note<
10600  "use nullability type specifier %0 to affect the innermost "
10601  "pointer type of %1">;
10602
10603def warn_null_resettable_setter : Warning<
10604  "synthesized setter %0 for null_resettable property %1 does not handle nil">,
10605  InGroup<Nullability>;
10606
10607def warn_nullability_missing : Warning<
10608  "%select{pointer|block pointer|member pointer}0 is missing a nullability "
10609  "type specifier (_Nonnull, _Nullable, or _Null_unspecified)">,
10610  InGroup<NullabilityCompleteness>;
10611def warn_nullability_missing_array : Warning<
10612  "array parameter is missing a nullability type specifier (_Nonnull, "
10613  "_Nullable, or _Null_unspecified)">,
10614  InGroup<NullabilityCompletenessOnArrays>;
10615def note_nullability_fix_it : Note<
10616  "insert '%select{_Nonnull|_Nullable|_Null_unspecified}0' if the "
10617  "%select{pointer|block pointer|member pointer|array parameter}1 "
10618  "%select{should never be null|may be null|should not declare nullability}0">;
10619
10620def warn_nullability_inferred_on_nested_type : Warning<
10621  "inferring '_Nonnull' for pointer type within %select{array|reference}0 is "
10622  "deprecated">,
10623  InGroup<NullabilityInferredOnNestedType>;
10624
10625def err_objc_type_arg_explicit_nullability : Error<
10626  "type argument %0 cannot explicitly specify nullability">;
10627
10628def err_objc_type_param_bound_explicit_nullability : Error<
10629  "type parameter %0 bound %1 cannot explicitly specify nullability">;
10630
10631}
10632
10633let CategoryName = "Generics Issue" in {
10634
10635def err_objc_type_param_bound_nonobject : Error<
10636  "type bound %0 for type parameter %1 is not an Objective-C pointer type">;
10637
10638def err_objc_type_param_bound_missing_pointer : Error<
10639  "missing '*' in type bound %0 for type parameter %1">;
10640def err_objc_type_param_bound_qualified : Error<
10641  "type bound %1 for type parameter %0 cannot be qualified with '%2'">;
10642
10643def err_objc_type_param_redecl : Error<
10644  "redeclaration of type parameter %0">;
10645
10646def err_objc_type_param_arity_mismatch : Error<
10647  "%select{forward class declaration|class definition|category|extension}0 has "
10648  "too %select{few|many}1 type parameters (expected %2, have %3)">;
10649
10650def err_objc_type_param_bound_conflict : Error<
10651  "type bound %0 for type parameter %1 conflicts with "
10652  "%select{implicit|previous}2 bound %3%select{for type parameter %5|}4">;
10653
10654def err_objc_type_param_variance_conflict : Error<
10655  "%select{in|co|contra}0variant type parameter %1 conflicts with previous "
10656  "%select{in|co|contra}2variant type parameter %3">;
10657
10658def note_objc_type_param_here : Note<"type parameter %0 declared here">;
10659
10660def err_objc_type_param_bound_missing : Error<
10661  "missing type bound %0 for type parameter %1 in %select{@interface|@class}2">;
10662
10663def err_objc_parameterized_category_nonclass : Error<
10664  "%select{extension|category}0 of non-parameterized class %1 cannot have type "
10665  "parameters">;
10666
10667def err_objc_parameterized_forward_class : Error<
10668  "forward declaration of non-parameterized class %0 cannot have type "
10669  "parameters">;
10670
10671def err_objc_parameterized_forward_class_first : Error<
10672  "class %0 previously declared with type parameters">;
10673
10674def err_objc_type_arg_missing_star : Error<
10675  "type argument %0 must be a pointer (requires a '*')">;
10676def err_objc_type_arg_qualified : Error<
10677  "type argument %0 cannot be qualified with '%1'">;
10678
10679def err_objc_type_arg_missing : Error<
10680  "no type or protocol named %0">;
10681
10682def err_objc_type_args_and_protocols : Error<
10683  "angle brackets contain both a %select{type|protocol}0 (%1) and a "
10684  "%select{protocol|type}0 (%2)">;
10685
10686def err_objc_type_args_non_class : Error<
10687  "type arguments cannot be applied to non-class type %0">;
10688
10689def err_objc_type_args_non_parameterized_class : Error<
10690  "type arguments cannot be applied to non-parameterized class %0">;
10691
10692def err_objc_type_args_specialized_class : Error<
10693  "type arguments cannot be applied to already-specialized class type %0">;
10694
10695def err_objc_type_args_wrong_arity : Error<
10696  "too %select{many|few}0 type arguments for class %1 (have %2, expected %3)">;
10697}
10698
10699def err_objc_type_arg_not_id_compatible : Error<
10700  "type argument %0 is neither an Objective-C object nor a block type">;
10701
10702def err_objc_type_arg_does_not_match_bound : Error<
10703  "type argument %0 does not satisfy the bound (%1) of type parameter %2">;
10704
10705def warn_objc_redundant_qualified_class_type : Warning<
10706  "parameterized class %0 already conforms to the protocols listed; did you "
10707  "forget a '*'?">, InGroup<ObjCProtocolQualifiers>;
10708
10709def warn_block_literal_attributes_on_omitted_return_type : Warning<
10710  "attribute %0 ignored, because it cannot be applied to omitted return type">,
10711  InGroup<IgnoredAttributes>;
10712
10713def warn_block_literal_qualifiers_on_omitted_return_type : Warning<
10714  "'%0' qualifier on omitted return type %1 has no effect">,
10715  InGroup<IgnoredQualifiers>;
10716
10717def warn_shadow_field : Warning<
10718  "%select{parameter|non-static data member}3 %0 %select{|of %1 }3shadows "
10719  "member inherited from type %2">, InGroup<ShadowField>, DefaultIgnore;
10720def note_shadow_field : Note<"declared here">;
10721
10722def err_multiversion_required_in_redecl : Error<
10723  "function declaration is missing %select{'target'|'cpu_specific' or "
10724  "'cpu_dispatch'}0 attribute in a multiversioned function">;
10725def note_multiversioning_caused_here : Note<
10726  "function multiversioning caused by this declaration">;
10727def err_multiversion_after_used : Error<
10728  "function declaration cannot become a multiversioned function after first "
10729  "usage">;
10730def err_bad_multiversion_option : Error<
10731  "function multiversioning doesn't support %select{feature|architecture}0 "
10732  "'%1'">;
10733def err_multiversion_duplicate : Error<
10734  "multiversioned function redeclarations require identical target attributes">;
10735def err_multiversion_noproto : Error<
10736  "multiversioned function must have a prototype">;
10737def err_multiversion_no_other_attrs : Error<
10738  "attribute '%select{target|cpu_specific|cpu_dispatch}0' multiversioning cannot be combined"
10739  " with other attributes">;
10740def err_multiversion_diff : Error<
10741  "multiversioned function declaration has a different %select{calling convention"
10742  "|return type|constexpr specification|inline specification|storage class|"
10743  "linkage}0">;
10744def err_multiversion_doesnt_support : Error<
10745  "attribute '%select{target|cpu_specific|cpu_dispatch}0' multiversioned functions do not "
10746  "yet support %select{function templates|virtual functions|"
10747  "deduced return types|constructors|destructors|deleted functions|"
10748  "defaulted functions|constexpr functions|consteval function}1">;
10749def err_multiversion_not_allowed_on_main : Error<
10750  "'main' cannot be a multiversioned function">;
10751def err_multiversion_not_supported : Error<
10752 "function multiversioning is not supported on the current target">;
10753def err_multiversion_types_mixed : Error<
10754  "multiversioning attributes cannot be combined">;
10755def err_cpu_dispatch_mismatch : Error<
10756 "'cpu_dispatch' function redeclared with different CPUs">;
10757def err_cpu_specific_multiple_defs : Error<
10758 "multiple 'cpu_specific' functions cannot specify the same CPU: %0">;
10759def warn_multiversion_duplicate_entries : Warning<
10760 "CPU list contains duplicate entries; attribute ignored">,
10761  InGroup<FunctionMultiVersioning>;
10762def warn_dispatch_body_ignored : Warning<
10763  "body of cpu_dispatch function will be ignored">,
10764  InGroup<FunctionMultiVersioning>;
10765
10766// three-way comparison operator diagnostics
10767def err_implied_comparison_category_type_not_found : Error<
10768  "cannot %select{use builtin operator '<=>'|default 'operator<=>'}1 "
10769  "because type '%0' was not found; include <compare>">;
10770def err_spaceship_argument_narrowing : Error<
10771  "argument to 'operator<=>' "
10772  "%select{cannot be narrowed from type %1 to %2|"
10773  "evaluates to %1, which cannot be narrowed to type %2}0">;
10774def err_std_compare_type_not_supported : Error<
10775  "standard library implementation of %0 is not supported; "
10776   "%select{member '%2' does not have expected form|"
10777   "member '%2' is missing|"
10778   "the type is not trivially copyable|"
10779   "the type does not have the expected form}1">;
10780def note_rewriting_operator_as_spaceship : Note<
10781  "while rewriting comparison as call to 'operator<=>' declared here">;
10782def err_three_way_vector_comparison : Error<
10783  "three-way comparison between vectors is not supported">;
10784
10785// Memory Tagging Extensions (MTE) diagnostics
10786def err_memtag_arg_null_or_pointer : Error<
10787  "%0 argument of MTE builtin function must be a null or a pointer (%1 invalid)">;
10788def err_memtag_any2arg_pointer : Error<
10789  "at least one argument of MTE builtin function must be a pointer (%0, %1 invalid)">;
10790def err_memtag_arg_must_be_pointer : Error<
10791  "%0 argument of MTE builtin function must be a pointer (%1 invalid)">;
10792def err_memtag_arg_must_be_integer : Error<
10793  "%0 argument of MTE builtin function must be an integer type (%1 invalid)">;
10794
10795def warn_dereference_of_noderef_type : Warning<
10796  "dereferencing %0; was declared with a 'noderef' type">, InGroup<NoDeref>;
10797def warn_dereference_of_noderef_type_no_decl : Warning<
10798  "dereferencing expression marked as 'noderef'">, InGroup<NoDeref>;
10799def warn_noderef_on_non_pointer_or_array : Warning<
10800  "'noderef' can only be used on an array or pointer type">, InGroup<IgnoredAttributes>;
10801def warn_noderef_to_dereferenceable_pointer : Warning<
10802  "casting to dereferenceable pointer removes 'noderef' attribute">, InGroup<NoDeref>;
10803
10804def err_builtin_launder_invalid_arg : Error<
10805  "%select{non-pointer|function pointer|void pointer}0 argument to "
10806  "'__builtin_launder' is not allowed">;
10807
10808def err_builtin_matrix_disabled: Error<
10809  "matrix types extension is disabled. Pass -fenable-matrix to enable it">;
10810def err_matrix_index_not_integer: Error<
10811  "matrix %select{row|column}0 index is not an integer">;
10812def err_matrix_index_outside_range: Error<
10813  "matrix %select{row|column}0 index is outside the allowed range [0, %1)">;
10814def err_matrix_incomplete_index: Error<
10815  "single subscript expressions are not allowed for matrix values">;
10816def err_matrix_separate_incomplete_index: Error<
10817  "matrix row and column subscripts cannot be separated by any expression">;
10818def err_matrix_subscript_comma: Error<
10819  "comma expressions are not allowed as indices in matrix subscript expressions">;
10820def err_builtin_matrix_arg: Error<"1st argument must be a matrix">;
10821def err_builtin_matrix_scalar_unsigned_arg: Error<
10822  "%0 argument must be a constant unsigned integer expression">;
10823def err_builtin_matrix_pointer_arg: Error<
10824  "%ordinal0 argument must be a pointer to a valid matrix element type">;
10825def err_builtin_matrix_pointer_arg_mismatch: Error<
10826  "the pointee of the 2nd argument must match the element type of the 1st argument (%0 != %1)">;
10827def err_builtin_matrix_store_to_const: Error<
10828  "cannot store matrix to read-only pointer">;
10829def err_builtin_matrix_stride_too_small: Error<
10830  "stride must be greater or equal to the number of rows">;
10831def err_builtin_matrix_invalid_dimension: Error<
10832  "%0 dimension is outside the allowed range [1, %1]">;
10833
10834def warn_mismatched_import : Warning<
10835  "import %select{module|name}0 (%1) does not match the import %select{module|name}0 (%2) of the "
10836  "previous declaration">,
10837  InGroup<IgnoredAttributes>;
10838def warn_import_on_definition : Warning<
10839  "import %select{module|name}0 cannot be applied to a function with a definition">,
10840  InGroup<IgnoredAttributes>;
10841
10842def err_preserve_field_info_not_field : Error<
10843  "__builtin_preserve_field_info argument %0 not a field access">;
10844def err_preserve_field_info_not_const: Error<
10845  "__builtin_preserve_field_info argument %0 not a constant">;
10846def err_btf_type_id_not_const: Error<
10847  "__builtin_btf_type_id argument %0 not a constant">;
10848
10849def err_bit_cast_non_trivially_copyable : Error<
10850  "__builtin_bit_cast %select{source|destination}0 type must be trivially copyable">;
10851def err_bit_cast_type_size_mismatch : Error<
10852  "__builtin_bit_cast source size does not equal destination size (%0 vs %1)">;
10853
10854// SYCL-specific diagnostics
10855def warn_sycl_kernel_num_of_template_params : Warning<
10856  "'sycl_kernel' attribute only applies to a function template with at least"
10857  " two template parameters">, InGroup<IgnoredAttributes>;
10858def warn_sycl_kernel_invalid_template_param_type : Warning<
10859  "template parameter of a function template with the 'sycl_kernel' attribute"
10860  " cannot be a non-type template parameter">, InGroup<IgnoredAttributes>;
10861def warn_sycl_kernel_num_of_function_params : Warning<
10862  "function template with 'sycl_kernel' attribute must have a single parameter">,
10863  InGroup<IgnoredAttributes>;
10864def warn_sycl_kernel_return_type : Warning<
10865  "function template with 'sycl_kernel' attribute must have a 'void' return type">,
10866  InGroup<IgnoredAttributes>;
10867
10868def err_ext_int_bad_size : Error<"%select{signed|unsigned}0 _ExtInt must "
10869                                 "have a bit size of at least %select{2|1}0">;
10870def err_ext_int_max_size : Error<"%select{signed|unsigned}0 _ExtInt of bit "
10871                                 "sizes greater than %1 not supported">;
10872
10873// errors of expect.with.probability
10874def err_probability_not_constant_float : Error<
10875   "probability argument to __builtin_expect_with_probability must be constant "
10876   "floating-point expression">;
10877def err_probability_out_of_range : Error<
10878   "probability argument to __builtin_expect_with_probability is outside the "
10879   "range [0.0, 1.0]">;
10880} // end of sema component.
10881