xref: /freebsd/contrib/llvm-project/llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h (revision 0fca6ea1d4eea4c934cfff25ac9ee8ad6fe95583) 
1 //==- WebAssemblyMCTargetDesc.h - WebAssembly Target Descriptions -*- C++ -*-=//
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 /// \file
10 /// This file provides WebAssembly-specific target descriptions.
11 ///
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_LIB_TARGET_WEBASSEMBLY_MCTARGETDESC_WEBASSEMBLYMCTARGETDESC_H
15 #define LLVM_LIB_TARGET_WEBASSEMBLY_MCTARGETDESC_WEBASSEMBLYMCTARGETDESC_H
16 
17 #include "llvm/BinaryFormat/Wasm.h"
18 #include "llvm/MC/MCContext.h"
19 #include "llvm/MC/MCInstrDesc.h"
20 #include "llvm/Support/CommandLine.h"
21 #include "llvm/Support/DataTypes.h"
22 #include <memory>
23 
24 namespace llvm {
25 
26 class MCAsmBackend;
27 class MCCodeEmitter;
28 class MCInstrInfo;
29 class MCObjectTargetWriter;
30 class Triple;
31 
32 MCCodeEmitter *createWebAssemblyMCCodeEmitter(const MCInstrInfo &MCII,
33                                               MCContext &Ctx);
34 
35 MCAsmBackend *createWebAssemblyAsmBackend(const Triple &TT);
36 
37 std::unique_ptr<MCObjectTargetWriter>
38 createWebAssemblyWasmObjectWriter(bool Is64Bit, bool IsEmscripten);
39 
40 namespace WebAssembly {
41 
42 // Exception handling / setjmp-longjmp handling command-line options
43 extern cl::opt<bool> WasmEnableEmEH;   // asm.js-style EH
44 extern cl::opt<bool> WasmEnableEmSjLj; // asm.js-style SjLJ
45 extern cl::opt<bool> WasmEnableEH;     // EH using Wasm EH instructions
46 extern cl::opt<bool> WasmEnableSjLj;   // SjLj using Wasm EH instructions
47 extern cl::opt<bool> WasmEnableExnref; // EH using new Wasm EH (exnref)
48 
49 enum OperandType {
50   /// Basic block label in a branch construct.
51   OPERAND_BASIC_BLOCK = MCOI::OPERAND_FIRST_TARGET,
52   /// Local index.
53   OPERAND_LOCAL,
54   /// Global index.
55   OPERAND_GLOBAL,
56   /// 32-bit integer immediates.
57   OPERAND_I32IMM,
58   /// 64-bit integer immediates.
59   OPERAND_I64IMM,
60   /// 32-bit floating-point immediates.
61   OPERAND_F32IMM,
62   /// 64-bit floating-point immediates.
63   OPERAND_F64IMM,
64   /// 8-bit vector lane immediate
65   OPERAND_VEC_I8IMM,
66   /// 16-bit vector lane immediate
67   OPERAND_VEC_I16IMM,
68   /// 32-bit vector lane immediate
69   OPERAND_VEC_I32IMM,
70   /// 64-bit vector lane immediate
71   OPERAND_VEC_I64IMM,
72   /// 32-bit unsigned function indices.
73   OPERAND_FUNCTION32,
74   /// 32-bit unsigned memory offsets.
75   OPERAND_OFFSET32,
76   /// 64-bit unsigned memory offsets.
77   OPERAND_OFFSET64,
78   /// p2align immediate for load and store address alignment.
79   OPERAND_P2ALIGN,
80   /// signature immediate for block/loop.
81   OPERAND_SIGNATURE,
82   /// type signature immediate for call_indirect.
83   OPERAND_TYPEINDEX,
84   /// Tag index.
85   OPERAND_TAG,
86   /// A list of branch targets for br_list.
87   OPERAND_BRLIST,
88   /// 32-bit unsigned table number.
89   OPERAND_TABLE,
90 };
91 } // end namespace WebAssembly
92 
93 namespace WebAssemblyII {
94 
95 /// Target Operand Flag enum.
96 enum TOF {
97   MO_NO_FLAG = 0,
98 
99   // On a symbol operand this indicates that the immediate is a wasm global
100   // index.  The value of the wasm global will be set to the symbol address at
101   // runtime.  This adds a level of indirection similar to the GOT on native
102   // platforms.
103   MO_GOT,
104 
105   // Same as MO_GOT but the address stored in the global is a TLS address.
106   MO_GOT_TLS,
107 
108   // On a symbol operand this indicates that the immediate is the symbol
109   // address relative the __memory_base wasm global.
110   // Only applicable to data symbols.
111   MO_MEMORY_BASE_REL,
112 
113   // On a symbol operand this indicates that the immediate is the symbol
114   // address relative the __tls_base wasm global.
115   // Only applicable to data symbols.
116   MO_TLS_BASE_REL,
117 
118   // On a symbol operand this indicates that the immediate is the symbol
119   // address relative the __table_base wasm global.
120   // Only applicable to function symbols.
121   MO_TABLE_BASE_REL,
122 };
123 
124 } // end namespace WebAssemblyII
125 
126 } // end namespace llvm
127 
128 // Defines symbolic names for WebAssembly registers. This defines a mapping from
129 // register name to register number.
130 //
131 #define GET_REGINFO_ENUM
132 #include "WebAssemblyGenRegisterInfo.inc"
133 
134 // Defines symbolic names for the WebAssembly instructions.
135 //
136 #define GET_INSTRINFO_ENUM
137 #define GET_INSTRINFO_MC_HELPER_DECLS
138 #include "WebAssemblyGenInstrInfo.inc"
139 
140 namespace llvm {
141 namespace WebAssembly {
142 
143 /// Instruction opcodes emitted via means other than CodeGen.
144 static const unsigned Nop = 0x01;
145 static const unsigned End = 0x0b;
146 
147 /// Return the default p2align value for a load or store with the given opcode.
GetDefaultP2AlignAny(unsigned Opc)148 inline unsigned GetDefaultP2AlignAny(unsigned Opc) {
149   switch (Opc) {
150 #define WASM_LOAD_STORE(NAME) \
151   case WebAssembly::NAME##_A32: \
152   case WebAssembly::NAME##_A64: \
153   case WebAssembly::NAME##_A32_S: \
154   case WebAssembly::NAME##_A64_S:
155   WASM_LOAD_STORE(LOAD8_S_I32)
156   WASM_LOAD_STORE(LOAD8_U_I32)
157   WASM_LOAD_STORE(LOAD8_S_I64)
158   WASM_LOAD_STORE(LOAD8_U_I64)
159   WASM_LOAD_STORE(ATOMIC_LOAD8_U_I32)
160   WASM_LOAD_STORE(ATOMIC_LOAD8_U_I64)
161   WASM_LOAD_STORE(STORE8_I32)
162   WASM_LOAD_STORE(STORE8_I64)
163   WASM_LOAD_STORE(ATOMIC_STORE8_I32)
164   WASM_LOAD_STORE(ATOMIC_STORE8_I64)
165   WASM_LOAD_STORE(ATOMIC_RMW8_U_ADD_I32)
166   WASM_LOAD_STORE(ATOMIC_RMW8_U_ADD_I64)
167   WASM_LOAD_STORE(ATOMIC_RMW8_U_SUB_I32)
168   WASM_LOAD_STORE(ATOMIC_RMW8_U_SUB_I64)
169   WASM_LOAD_STORE(ATOMIC_RMW8_U_AND_I32)
170   WASM_LOAD_STORE(ATOMIC_RMW8_U_AND_I64)
171   WASM_LOAD_STORE(ATOMIC_RMW8_U_OR_I32)
172   WASM_LOAD_STORE(ATOMIC_RMW8_U_OR_I64)
173   WASM_LOAD_STORE(ATOMIC_RMW8_U_XOR_I32)
174   WASM_LOAD_STORE(ATOMIC_RMW8_U_XOR_I64)
175   WASM_LOAD_STORE(ATOMIC_RMW8_U_XCHG_I32)
176   WASM_LOAD_STORE(ATOMIC_RMW8_U_XCHG_I64)
177   WASM_LOAD_STORE(ATOMIC_RMW8_U_CMPXCHG_I32)
178   WASM_LOAD_STORE(ATOMIC_RMW8_U_CMPXCHG_I64)
179   WASM_LOAD_STORE(LOAD8_SPLAT)
180   WASM_LOAD_STORE(LOAD_LANE_I8x16)
181   WASM_LOAD_STORE(STORE_LANE_I8x16)
182   return 0;
183   WASM_LOAD_STORE(LOAD16_S_I32)
184   WASM_LOAD_STORE(LOAD16_U_I32)
185   WASM_LOAD_STORE(LOAD16_S_I64)
186   WASM_LOAD_STORE(LOAD16_U_I64)
187   WASM_LOAD_STORE(ATOMIC_LOAD16_U_I32)
188   WASM_LOAD_STORE(ATOMIC_LOAD16_U_I64)
189   WASM_LOAD_STORE(STORE16_I32)
190   WASM_LOAD_STORE(STORE16_I64)
191   WASM_LOAD_STORE(ATOMIC_STORE16_I32)
192   WASM_LOAD_STORE(ATOMIC_STORE16_I64)
193   WASM_LOAD_STORE(ATOMIC_RMW16_U_ADD_I32)
194   WASM_LOAD_STORE(ATOMIC_RMW16_U_ADD_I64)
195   WASM_LOAD_STORE(ATOMIC_RMW16_U_SUB_I32)
196   WASM_LOAD_STORE(ATOMIC_RMW16_U_SUB_I64)
197   WASM_LOAD_STORE(ATOMIC_RMW16_U_AND_I32)
198   WASM_LOAD_STORE(ATOMIC_RMW16_U_AND_I64)
199   WASM_LOAD_STORE(ATOMIC_RMW16_U_OR_I32)
200   WASM_LOAD_STORE(ATOMIC_RMW16_U_OR_I64)
201   WASM_LOAD_STORE(ATOMIC_RMW16_U_XOR_I32)
202   WASM_LOAD_STORE(ATOMIC_RMW16_U_XOR_I64)
203   WASM_LOAD_STORE(ATOMIC_RMW16_U_XCHG_I32)
204   WASM_LOAD_STORE(ATOMIC_RMW16_U_XCHG_I64)
205   WASM_LOAD_STORE(ATOMIC_RMW16_U_CMPXCHG_I32)
206   WASM_LOAD_STORE(ATOMIC_RMW16_U_CMPXCHG_I64)
207   WASM_LOAD_STORE(LOAD16_SPLAT)
208   WASM_LOAD_STORE(LOAD_LANE_I16x8)
209   WASM_LOAD_STORE(STORE_LANE_I16x8)
210   WASM_LOAD_STORE(LOAD_F16_F32)
211   WASM_LOAD_STORE(STORE_F16_F32)
212   return 1;
213   WASM_LOAD_STORE(LOAD_I32)
214   WASM_LOAD_STORE(LOAD_F32)
215   WASM_LOAD_STORE(STORE_I32)
216   WASM_LOAD_STORE(STORE_F32)
217   WASM_LOAD_STORE(LOAD32_S_I64)
218   WASM_LOAD_STORE(LOAD32_U_I64)
219   WASM_LOAD_STORE(STORE32_I64)
220   WASM_LOAD_STORE(ATOMIC_LOAD_I32)
221   WASM_LOAD_STORE(ATOMIC_LOAD32_U_I64)
222   WASM_LOAD_STORE(ATOMIC_STORE_I32)
223   WASM_LOAD_STORE(ATOMIC_STORE32_I64)
224   WASM_LOAD_STORE(ATOMIC_RMW_ADD_I32)
225   WASM_LOAD_STORE(ATOMIC_RMW32_U_ADD_I64)
226   WASM_LOAD_STORE(ATOMIC_RMW_SUB_I32)
227   WASM_LOAD_STORE(ATOMIC_RMW32_U_SUB_I64)
228   WASM_LOAD_STORE(ATOMIC_RMW_AND_I32)
229   WASM_LOAD_STORE(ATOMIC_RMW32_U_AND_I64)
230   WASM_LOAD_STORE(ATOMIC_RMW_OR_I32)
231   WASM_LOAD_STORE(ATOMIC_RMW32_U_OR_I64)
232   WASM_LOAD_STORE(ATOMIC_RMW_XOR_I32)
233   WASM_LOAD_STORE(ATOMIC_RMW32_U_XOR_I64)
234   WASM_LOAD_STORE(ATOMIC_RMW_XCHG_I32)
235   WASM_LOAD_STORE(ATOMIC_RMW32_U_XCHG_I64)
236   WASM_LOAD_STORE(ATOMIC_RMW_CMPXCHG_I32)
237   WASM_LOAD_STORE(ATOMIC_RMW32_U_CMPXCHG_I64)
238   WASM_LOAD_STORE(MEMORY_ATOMIC_NOTIFY)
239   WASM_LOAD_STORE(MEMORY_ATOMIC_WAIT32)
240   WASM_LOAD_STORE(LOAD32_SPLAT)
241   WASM_LOAD_STORE(LOAD_ZERO_I32x4)
242   WASM_LOAD_STORE(LOAD_LANE_I32x4)
243   WASM_LOAD_STORE(STORE_LANE_I32x4)
244   return 2;
245   WASM_LOAD_STORE(LOAD_I64)
246   WASM_LOAD_STORE(LOAD_F64)
247   WASM_LOAD_STORE(STORE_I64)
248   WASM_LOAD_STORE(STORE_F64)
249   WASM_LOAD_STORE(ATOMIC_LOAD_I64)
250   WASM_LOAD_STORE(ATOMIC_STORE_I64)
251   WASM_LOAD_STORE(ATOMIC_RMW_ADD_I64)
252   WASM_LOAD_STORE(ATOMIC_RMW_SUB_I64)
253   WASM_LOAD_STORE(ATOMIC_RMW_AND_I64)
254   WASM_LOAD_STORE(ATOMIC_RMW_OR_I64)
255   WASM_LOAD_STORE(ATOMIC_RMW_XOR_I64)
256   WASM_LOAD_STORE(ATOMIC_RMW_XCHG_I64)
257   WASM_LOAD_STORE(ATOMIC_RMW_CMPXCHG_I64)
258   WASM_LOAD_STORE(MEMORY_ATOMIC_WAIT64)
259   WASM_LOAD_STORE(LOAD64_SPLAT)
260   WASM_LOAD_STORE(LOAD_EXTEND_S_I16x8)
261   WASM_LOAD_STORE(LOAD_EXTEND_U_I16x8)
262   WASM_LOAD_STORE(LOAD_EXTEND_S_I32x4)
263   WASM_LOAD_STORE(LOAD_EXTEND_U_I32x4)
264   WASM_LOAD_STORE(LOAD_EXTEND_S_I64x2)
265   WASM_LOAD_STORE(LOAD_EXTEND_U_I64x2)
266   WASM_LOAD_STORE(LOAD_ZERO_I64x2)
267   WASM_LOAD_STORE(LOAD_LANE_I64x2)
268   WASM_LOAD_STORE(STORE_LANE_I64x2)
269   return 3;
270   WASM_LOAD_STORE(LOAD_V128)
271   WASM_LOAD_STORE(STORE_V128)
272     return 4;
273   default:
274     return -1;
275   }
276 #undef WASM_LOAD_STORE
277 }
278 
GetDefaultP2Align(unsigned Opc)279 inline unsigned GetDefaultP2Align(unsigned Opc) {
280   auto Align = GetDefaultP2AlignAny(Opc);
281   if (Align == -1U) {
282     llvm_unreachable("Only loads and stores have p2align values");
283   }
284   return Align;
285 }
286 
isConst(unsigned Opc)287 inline bool isConst(unsigned Opc) {
288   switch (Opc) {
289   case WebAssembly::CONST_I32:
290   case WebAssembly::CONST_I32_S:
291   case WebAssembly::CONST_I64:
292   case WebAssembly::CONST_I64_S:
293   case WebAssembly::CONST_F32:
294   case WebAssembly::CONST_F32_S:
295   case WebAssembly::CONST_F64:
296   case WebAssembly::CONST_F64_S:
297   case WebAssembly::CONST_V128_I8x16:
298   case WebAssembly::CONST_V128_I8x16_S:
299   case WebAssembly::CONST_V128_I16x8:
300   case WebAssembly::CONST_V128_I16x8_S:
301   case WebAssembly::CONST_V128_I32x4:
302   case WebAssembly::CONST_V128_I32x4_S:
303   case WebAssembly::CONST_V128_I64x2:
304   case WebAssembly::CONST_V128_I64x2_S:
305   case WebAssembly::CONST_V128_F32x4:
306   case WebAssembly::CONST_V128_F32x4_S:
307   case WebAssembly::CONST_V128_F64x2:
308   case WebAssembly::CONST_V128_F64x2_S:
309     return true;
310   default:
311     return false;
312   }
313 }
314 
isScalarConst(unsigned Opc)315 inline bool isScalarConst(unsigned Opc) {
316   switch (Opc) {
317   case WebAssembly::CONST_I32:
318   case WebAssembly::CONST_I32_S:
319   case WebAssembly::CONST_I64:
320   case WebAssembly::CONST_I64_S:
321   case WebAssembly::CONST_F32:
322   case WebAssembly::CONST_F32_S:
323   case WebAssembly::CONST_F64:
324   case WebAssembly::CONST_F64_S:
325     return true;
326   default:
327     return false;
328   }
329 }
330 
isArgument(unsigned Opc)331 inline bool isArgument(unsigned Opc) {
332   switch (Opc) {
333   case WebAssembly::ARGUMENT_i32:
334   case WebAssembly::ARGUMENT_i32_S:
335   case WebAssembly::ARGUMENT_i64:
336   case WebAssembly::ARGUMENT_i64_S:
337   case WebAssembly::ARGUMENT_f32:
338   case WebAssembly::ARGUMENT_f32_S:
339   case WebAssembly::ARGUMENT_f64:
340   case WebAssembly::ARGUMENT_f64_S:
341   case WebAssembly::ARGUMENT_v16i8:
342   case WebAssembly::ARGUMENT_v16i8_S:
343   case WebAssembly::ARGUMENT_v8i16:
344   case WebAssembly::ARGUMENT_v8i16_S:
345   case WebAssembly::ARGUMENT_v4i32:
346   case WebAssembly::ARGUMENT_v4i32_S:
347   case WebAssembly::ARGUMENT_v2i64:
348   case WebAssembly::ARGUMENT_v2i64_S:
349   case WebAssembly::ARGUMENT_v8f16:
350   case WebAssembly::ARGUMENT_v8f16_S:
351   case WebAssembly::ARGUMENT_v4f32:
352   case WebAssembly::ARGUMENT_v4f32_S:
353   case WebAssembly::ARGUMENT_v2f64:
354   case WebAssembly::ARGUMENT_v2f64_S:
355   case WebAssembly::ARGUMENT_funcref:
356   case WebAssembly::ARGUMENT_funcref_S:
357   case WebAssembly::ARGUMENT_externref:
358   case WebAssembly::ARGUMENT_externref_S:
359   case WebAssembly::ARGUMENT_exnref:
360   case WebAssembly::ARGUMENT_exnref_S:
361     return true;
362   default:
363     return false;
364   }
365 }
366 
isCopy(unsigned Opc)367 inline bool isCopy(unsigned Opc) {
368   switch (Opc) {
369   case WebAssembly::COPY_I32:
370   case WebAssembly::COPY_I32_S:
371   case WebAssembly::COPY_I64:
372   case WebAssembly::COPY_I64_S:
373   case WebAssembly::COPY_F32:
374   case WebAssembly::COPY_F32_S:
375   case WebAssembly::COPY_F64:
376   case WebAssembly::COPY_F64_S:
377   case WebAssembly::COPY_V128:
378   case WebAssembly::COPY_V128_S:
379   case WebAssembly::COPY_FUNCREF:
380   case WebAssembly::COPY_FUNCREF_S:
381   case WebAssembly::COPY_EXTERNREF:
382   case WebAssembly::COPY_EXTERNREF_S:
383   case WebAssembly::COPY_EXNREF:
384   case WebAssembly::COPY_EXNREF_S:
385     return true;
386   default:
387     return false;
388   }
389 }
390 
isTee(unsigned Opc)391 inline bool isTee(unsigned Opc) {
392   switch (Opc) {
393   case WebAssembly::TEE_I32:
394   case WebAssembly::TEE_I32_S:
395   case WebAssembly::TEE_I64:
396   case WebAssembly::TEE_I64_S:
397   case WebAssembly::TEE_F32:
398   case WebAssembly::TEE_F32_S:
399   case WebAssembly::TEE_F64:
400   case WebAssembly::TEE_F64_S:
401   case WebAssembly::TEE_V128:
402   case WebAssembly::TEE_V128_S:
403   case WebAssembly::TEE_FUNCREF:
404   case WebAssembly::TEE_FUNCREF_S:
405   case WebAssembly::TEE_EXTERNREF:
406   case WebAssembly::TEE_EXTERNREF_S:
407   case WebAssembly::TEE_EXNREF:
408   case WebAssembly::TEE_EXNREF_S:
409     return true;
410   default:
411     return false;
412   }
413 }
414 
isCallDirect(unsigned Opc)415 inline bool isCallDirect(unsigned Opc) {
416   switch (Opc) {
417   case WebAssembly::CALL:
418   case WebAssembly::CALL_S:
419   case WebAssembly::RET_CALL:
420   case WebAssembly::RET_CALL_S:
421     return true;
422   default:
423     return false;
424   }
425 }
426 
isCallIndirect(unsigned Opc)427 inline bool isCallIndirect(unsigned Opc) {
428   switch (Opc) {
429   case WebAssembly::CALL_INDIRECT:
430   case WebAssembly::CALL_INDIRECT_S:
431   case WebAssembly::RET_CALL_INDIRECT:
432   case WebAssembly::RET_CALL_INDIRECT_S:
433     return true;
434   default:
435     return false;
436   }
437 }
438 
isBrTable(unsigned Opc)439 inline bool isBrTable(unsigned Opc) {
440   switch (Opc) {
441   case WebAssembly::BR_TABLE_I32:
442   case WebAssembly::BR_TABLE_I32_S:
443   case WebAssembly::BR_TABLE_I64:
444   case WebAssembly::BR_TABLE_I64_S:
445     return true;
446   default:
447     return false;
448   }
449 }
450 
isMarker(unsigned Opc)451 inline bool isMarker(unsigned Opc) {
452   switch (Opc) {
453   case WebAssembly::BLOCK:
454   case WebAssembly::BLOCK_S:
455   case WebAssembly::END_BLOCK:
456   case WebAssembly::END_BLOCK_S:
457   case WebAssembly::LOOP:
458   case WebAssembly::LOOP_S:
459   case WebAssembly::END_LOOP:
460   case WebAssembly::END_LOOP_S:
461   case WebAssembly::TRY:
462   case WebAssembly::TRY_S:
463   case WebAssembly::END_TRY:
464   case WebAssembly::END_TRY_S:
465     return true;
466   default:
467     return false;
468   }
469 }
470 
isCatch(unsigned Opc)471 inline bool isCatch(unsigned Opc) {
472   switch (Opc) {
473   case WebAssembly::CATCH:
474   case WebAssembly::CATCH_S:
475   case WebAssembly::CATCH_ALL:
476   case WebAssembly::CATCH_ALL_S:
477     return true;
478   default:
479     return false;
480   }
481 }
482 
isLocalGet(unsigned Opc)483 inline bool isLocalGet(unsigned Opc) {
484   switch (Opc) {
485   case WebAssembly::LOCAL_GET_I32:
486   case WebAssembly::LOCAL_GET_I32_S:
487   case WebAssembly::LOCAL_GET_I64:
488   case WebAssembly::LOCAL_GET_I64_S:
489   case WebAssembly::LOCAL_GET_F32:
490   case WebAssembly::LOCAL_GET_F32_S:
491   case WebAssembly::LOCAL_GET_F64:
492   case WebAssembly::LOCAL_GET_F64_S:
493   case WebAssembly::LOCAL_GET_V128:
494   case WebAssembly::LOCAL_GET_V128_S:
495   case WebAssembly::LOCAL_GET_FUNCREF:
496   case WebAssembly::LOCAL_GET_FUNCREF_S:
497   case WebAssembly::LOCAL_GET_EXTERNREF:
498   case WebAssembly::LOCAL_GET_EXTERNREF_S:
499   case WebAssembly::LOCAL_GET_EXNREF:
500   case WebAssembly::LOCAL_GET_EXNREF_S:
501     return true;
502   default:
503     return false;
504   }
505 }
506 
isLocalSet(unsigned Opc)507 inline bool isLocalSet(unsigned Opc) {
508   switch (Opc) {
509   case WebAssembly::LOCAL_SET_I32:
510   case WebAssembly::LOCAL_SET_I32_S:
511   case WebAssembly::LOCAL_SET_I64:
512   case WebAssembly::LOCAL_SET_I64_S:
513   case WebAssembly::LOCAL_SET_F32:
514   case WebAssembly::LOCAL_SET_F32_S:
515   case WebAssembly::LOCAL_SET_F64:
516   case WebAssembly::LOCAL_SET_F64_S:
517   case WebAssembly::LOCAL_SET_V128:
518   case WebAssembly::LOCAL_SET_V128_S:
519   case WebAssembly::LOCAL_SET_FUNCREF:
520   case WebAssembly::LOCAL_SET_FUNCREF_S:
521   case WebAssembly::LOCAL_SET_EXTERNREF:
522   case WebAssembly::LOCAL_SET_EXTERNREF_S:
523   case WebAssembly::LOCAL_SET_EXNREF:
524   case WebAssembly::LOCAL_SET_EXNREF_S:
525     return true;
526   default:
527     return false;
528   }
529 }
530 
isLocalTee(unsigned Opc)531 inline bool isLocalTee(unsigned Opc) {
532   switch (Opc) {
533   case WebAssembly::LOCAL_TEE_I32:
534   case WebAssembly::LOCAL_TEE_I32_S:
535   case WebAssembly::LOCAL_TEE_I64:
536   case WebAssembly::LOCAL_TEE_I64_S:
537   case WebAssembly::LOCAL_TEE_F32:
538   case WebAssembly::LOCAL_TEE_F32_S:
539   case WebAssembly::LOCAL_TEE_F64:
540   case WebAssembly::LOCAL_TEE_F64_S:
541   case WebAssembly::LOCAL_TEE_V128:
542   case WebAssembly::LOCAL_TEE_V128_S:
543   case WebAssembly::LOCAL_TEE_FUNCREF:
544   case WebAssembly::LOCAL_TEE_FUNCREF_S:
545   case WebAssembly::LOCAL_TEE_EXTERNREF:
546   case WebAssembly::LOCAL_TEE_EXTERNREF_S:
547   case WebAssembly::LOCAL_TEE_EXNREF:
548   case WebAssembly::LOCAL_TEE_EXNREF_S:
549     return true;
550   default:
551     return false;
552   }
553 }
554 
555 static const unsigned UnusedReg = -1u;
556 
557 // For a given stackified WAReg, return the id number to print with push/pop.
getWARegStackId(unsigned Reg)558 unsigned inline getWARegStackId(unsigned Reg) {
559   assert(Reg & INT32_MIN);
560   return Reg & INT32_MAX;
561 }
562 
563 } // end namespace WebAssembly
564 } // end namespace llvm
565 
566 #define GET_SUBTARGETINFO_ENUM
567 #include "WebAssemblyGenSubtargetInfo.inc"
568 
569 #endif
570