xref: /linux/scripts/gcc-plugins/gcc-common.h (revision b8d312aa075f33282565467662c4628dae0a2aff)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef GCC_COMMON_H_INCLUDED
3 #define GCC_COMMON_H_INCLUDED
4 
5 #include "bversion.h"
6 #if BUILDING_GCC_VERSION >= 6000
7 #include "gcc-plugin.h"
8 #else
9 #include "plugin.h"
10 #endif
11 #include "plugin-version.h"
12 #include "config.h"
13 #include "system.h"
14 #include "coretypes.h"
15 #include "tm.h"
16 #include "line-map.h"
17 #include "input.h"
18 #include "tree.h"
19 
20 #include "tree-inline.h"
21 #include "version.h"
22 #include "rtl.h"
23 #include "tm_p.h"
24 #include "flags.h"
25 #include "hard-reg-set.h"
26 #include "output.h"
27 #include "except.h"
28 #include "function.h"
29 #include "toplev.h"
30 #if BUILDING_GCC_VERSION >= 5000
31 #include "expr.h"
32 #endif
33 #include "basic-block.h"
34 #include "intl.h"
35 #include "ggc.h"
36 #include "timevar.h"
37 
38 #include "params.h"
39 
40 #if BUILDING_GCC_VERSION <= 4009
41 #include "pointer-set.h"
42 #else
43 #include "hash-map.h"
44 #endif
45 
46 #if BUILDING_GCC_VERSION >= 7000
47 #include "memmodel.h"
48 #endif
49 #include "emit-rtl.h"
50 #include "debug.h"
51 #include "target.h"
52 #include "langhooks.h"
53 #include "cfgloop.h"
54 #include "cgraph.h"
55 #include "opts.h"
56 
57 #if BUILDING_GCC_VERSION == 4005
58 #include <sys/mman.h>
59 #endif
60 
61 #if BUILDING_GCC_VERSION >= 4007
62 #include "tree-pretty-print.h"
63 #include "gimple-pretty-print.h"
64 #endif
65 
66 #if BUILDING_GCC_VERSION >= 4006
67 /*
68  * The c-family headers were moved into a subdirectory in GCC version
69  * 4.7, but most plugin-building users of GCC 4.6 are using the Debian
70  * or Ubuntu package, which has an out-of-tree patch to move this to the
71  * same location as found in 4.7 and later:
72  * https://sources.debian.net/src/gcc-4.6/4.6.3-14/debian/patches/pr45078.diff/
73  */
74 #include "c-family/c-common.h"
75 #else
76 #include "c-common.h"
77 #endif
78 
79 #if BUILDING_GCC_VERSION <= 4008
80 #include "tree-flow.h"
81 #else
82 #include "tree-cfgcleanup.h"
83 #include "tree-ssa-operands.h"
84 #include "tree-into-ssa.h"
85 #endif
86 
87 #if BUILDING_GCC_VERSION >= 4008
88 #include "is-a.h"
89 #endif
90 
91 #include "diagnostic.h"
92 #include "tree-dump.h"
93 #include "tree-pass.h"
94 #if BUILDING_GCC_VERSION >= 4009
95 #include "pass_manager.h"
96 #endif
97 #include "predict.h"
98 #include "ipa-utils.h"
99 
100 #if BUILDING_GCC_VERSION >= 8000
101 #include "stringpool.h"
102 #endif
103 
104 #if BUILDING_GCC_VERSION >= 4009
105 #include "attribs.h"
106 #include "varasm.h"
107 #include "stor-layout.h"
108 #include "internal-fn.h"
109 #include "gimple-expr.h"
110 #include "gimple-fold.h"
111 #include "context.h"
112 #include "tree-ssa-alias.h"
113 #include "tree-ssa.h"
114 #include "stringpool.h"
115 #if BUILDING_GCC_VERSION >= 7000
116 #include "tree-vrp.h"
117 #endif
118 #include "tree-ssanames.h"
119 #include "print-tree.h"
120 #include "tree-eh.h"
121 #include "stmt.h"
122 #include "gimplify.h"
123 #endif
124 
125 #include "gimple.h"
126 
127 #if BUILDING_GCC_VERSION >= 4009
128 #include "tree-ssa-operands.h"
129 #include "tree-phinodes.h"
130 #include "tree-cfg.h"
131 #include "gimple-iterator.h"
132 #include "gimple-ssa.h"
133 #include "ssa-iterators.h"
134 #endif
135 
136 #if BUILDING_GCC_VERSION >= 5000
137 #include "builtins.h"
138 #endif
139 
140 /* missing from basic_block.h... */
141 void debug_dominance_info(enum cdi_direction dir);
142 void debug_dominance_tree(enum cdi_direction dir, basic_block root);
143 
144 #if BUILDING_GCC_VERSION == 4006
145 void debug_gimple_stmt(gimple);
146 void debug_gimple_seq(gimple_seq);
147 void print_gimple_seq(FILE *, gimple_seq, int, int);
148 void print_gimple_stmt(FILE *, gimple, int, int);
149 void print_gimple_expr(FILE *, gimple, int, int);
150 void dump_gimple_stmt(pretty_printer *, gimple, int, int);
151 #endif
152 
153 #ifndef __unused
154 #define __unused __attribute__((__unused__))
155 #endif
156 #ifndef __visible
157 #define __visible __attribute__((visibility("default")))
158 #endif
159 
160 #define DECL_NAME_POINTER(node) IDENTIFIER_POINTER(DECL_NAME(node))
161 #define DECL_NAME_LENGTH(node) IDENTIFIER_LENGTH(DECL_NAME(node))
162 #define TYPE_NAME_POINTER(node) IDENTIFIER_POINTER(TYPE_NAME(node))
163 #define TYPE_NAME_LENGTH(node) IDENTIFIER_LENGTH(TYPE_NAME(node))
164 
165 /* should come from c-tree.h if only it were installed for gcc 4.5... */
166 #define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1(TYPE)
167 
168 static inline tree build_const_char_string(int len, const char *str)
169 {
170 	tree cstr, elem, index, type;
171 
172 	cstr = build_string(len, str);
173 	elem = build_type_variant(char_type_node, 1, 0);
174 	index = build_index_type(size_int(len - 1));
175 	type = build_array_type(elem, index);
176 	TREE_TYPE(cstr) = type;
177 	TREE_CONSTANT(cstr) = 1;
178 	TREE_READONLY(cstr) = 1;
179 	TREE_STATIC(cstr) = 1;
180 	return cstr;
181 }
182 
183 #define PASS_INFO(NAME, REF, ID, POS)		\
184 struct register_pass_info NAME##_pass_info = {	\
185 	.pass = make_##NAME##_pass(),		\
186 	.reference_pass_name = REF,		\
187 	.ref_pass_instance_number = ID,		\
188 	.pos_op = POS,				\
189 }
190 
191 #if BUILDING_GCC_VERSION == 4005
192 #define FOR_EACH_LOCAL_DECL(FUN, I, D)			\
193 	for (tree vars = (FUN)->local_decls, (I) = 0;	\
194 		vars && ((D) = TREE_VALUE(vars));	\
195 		vars = TREE_CHAIN(vars), (I)++)
196 #define DECL_CHAIN(NODE) (TREE_CHAIN(DECL_MINIMAL_CHECK(NODE)))
197 #define FOR_EACH_VEC_ELT(T, V, I, P) \
198 	for (I = 0; VEC_iterate(T, (V), (I), (P)); ++(I))
199 #define TODO_rebuild_cgraph_edges 0
200 #define SCOPE_FILE_SCOPE_P(EXP) (!(EXP))
201 
202 #ifndef O_BINARY
203 #define O_BINARY 0
204 #endif
205 
206 typedef struct varpool_node *varpool_node_ptr;
207 
208 static inline bool gimple_call_builtin_p(gimple stmt, enum built_in_function code)
209 {
210 	tree fndecl;
211 
212 	if (!is_gimple_call(stmt))
213 		return false;
214 	fndecl = gimple_call_fndecl(stmt);
215 	if (!fndecl || DECL_BUILT_IN_CLASS(fndecl) != BUILT_IN_NORMAL)
216 		return false;
217 	return DECL_FUNCTION_CODE(fndecl) == code;
218 }
219 
220 static inline bool is_simple_builtin(tree decl)
221 {
222 	if (decl && DECL_BUILT_IN_CLASS(decl) != BUILT_IN_NORMAL)
223 		return false;
224 
225 	switch (DECL_FUNCTION_CODE(decl)) {
226 	/* Builtins that expand to constants. */
227 	case BUILT_IN_CONSTANT_P:
228 	case BUILT_IN_EXPECT:
229 	case BUILT_IN_OBJECT_SIZE:
230 	case BUILT_IN_UNREACHABLE:
231 	/* Simple register moves or loads from stack. */
232 	case BUILT_IN_RETURN_ADDRESS:
233 	case BUILT_IN_EXTRACT_RETURN_ADDR:
234 	case BUILT_IN_FROB_RETURN_ADDR:
235 	case BUILT_IN_RETURN:
236 	case BUILT_IN_AGGREGATE_INCOMING_ADDRESS:
237 	case BUILT_IN_FRAME_ADDRESS:
238 	case BUILT_IN_VA_END:
239 	case BUILT_IN_STACK_SAVE:
240 	case BUILT_IN_STACK_RESTORE:
241 	/* Exception state returns or moves registers around. */
242 	case BUILT_IN_EH_FILTER:
243 	case BUILT_IN_EH_POINTER:
244 	case BUILT_IN_EH_COPY_VALUES:
245 	return true;
246 
247 	default:
248 	return false;
249 	}
250 }
251 
252 static inline void add_local_decl(struct function *fun, tree d)
253 {
254 	gcc_assert(TREE_CODE(d) == VAR_DECL);
255 	fun->local_decls = tree_cons(NULL_TREE, d, fun->local_decls);
256 }
257 #endif
258 
259 #if BUILDING_GCC_VERSION <= 4006
260 #define ANY_RETURN_P(rtx) (GET_CODE(rtx) == RETURN)
261 #define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_4(EXP)
262 #define EDGE_PRESERVE 0ULL
263 #define HOST_WIDE_INT_PRINT_HEX_PURE "%" HOST_WIDE_INT_PRINT "x"
264 #define flag_fat_lto_objects true
265 
266 #define get_random_seed(noinit) ({						\
267 	unsigned HOST_WIDE_INT seed;						\
268 	sscanf(get_random_seed(noinit), "%" HOST_WIDE_INT_PRINT "x", &seed);	\
269 	seed * seed; })
270 
271 #define int_const_binop(code, arg1, arg2)	\
272 	int_const_binop((code), (arg1), (arg2), 0)
273 
274 static inline bool gimple_clobber_p(gimple s __unused)
275 {
276 	return false;
277 }
278 
279 static inline bool gimple_asm_clobbers_memory_p(const_gimple stmt)
280 {
281 	unsigned i;
282 
283 	for (i = 0; i < gimple_asm_nclobbers(stmt); i++) {
284 		tree op = gimple_asm_clobber_op(stmt, i);
285 
286 		if (!strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "memory"))
287 			return true;
288 	}
289 
290 	return false;
291 }
292 
293 static inline tree builtin_decl_implicit(enum built_in_function fncode)
294 {
295 	return implicit_built_in_decls[fncode];
296 }
297 
298 static inline int ipa_reverse_postorder(struct cgraph_node **order)
299 {
300 	return cgraph_postorder(order);
301 }
302 
303 static inline struct cgraph_node *cgraph_create_node(tree decl)
304 {
305 	return cgraph_node(decl);
306 }
307 
308 static inline struct cgraph_node *cgraph_get_create_node(tree decl)
309 {
310 	struct cgraph_node *node = cgraph_get_node(decl);
311 
312 	return node ? node : cgraph_node(decl);
313 }
314 
315 static inline bool cgraph_function_with_gimple_body_p(struct cgraph_node *node)
316 {
317 	return node->analyzed && !node->thunk.thunk_p && !node->alias;
318 }
319 
320 static inline struct cgraph_node *cgraph_first_function_with_gimple_body(void)
321 {
322 	struct cgraph_node *node;
323 
324 	for (node = cgraph_nodes; node; node = node->next)
325 		if (cgraph_function_with_gimple_body_p(node))
326 			return node;
327 	return NULL;
328 }
329 
330 static inline struct cgraph_node *cgraph_next_function_with_gimple_body(struct cgraph_node *node)
331 {
332 	for (node = node->next; node; node = node->next)
333 		if (cgraph_function_with_gimple_body_p(node))
334 			return node;
335 	return NULL;
336 }
337 
338 static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
339 {
340 	cgraph_node_ptr alias;
341 
342 	if (callback(node, data))
343 		return true;
344 
345 	for (alias = node->same_body; alias; alias = alias->next) {
346 		if (include_overwritable || cgraph_function_body_availability(alias) > AVAIL_OVERWRITABLE)
347 			if (cgraph_for_node_and_aliases(alias, callback, data, include_overwritable))
348 				return true;
349 	}
350 
351 	return false;
352 }
353 
354 #define FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) \
355 	for ((node) = cgraph_first_function_with_gimple_body(); (node); \
356 		(node) = cgraph_next_function_with_gimple_body(node))
357 
358 static inline void varpool_add_new_variable(tree decl)
359 {
360 	varpool_finalize_decl(decl);
361 }
362 #endif
363 
364 #if BUILDING_GCC_VERSION <= 4007
365 #define FOR_EACH_FUNCTION(node)	\
366 	for (node = cgraph_nodes; node; node = node->next)
367 #define FOR_EACH_VARIABLE(node)	\
368 	for (node = varpool_nodes; node; node = node->next)
369 #define PROP_loops 0
370 #define NODE_SYMBOL(node) (node)
371 #define NODE_DECL(node) (node)->decl
372 #define INSN_LOCATION(INSN) RTL_LOCATION(INSN)
373 #define vNULL NULL
374 
375 static inline int bb_loop_depth(const_basic_block bb)
376 {
377 	return bb->loop_father ? loop_depth(bb->loop_father) : 0;
378 }
379 
380 static inline bool gimple_store_p(gimple gs)
381 {
382 	tree lhs = gimple_get_lhs(gs);
383 
384 	return lhs && !is_gimple_reg(lhs);
385 }
386 
387 static inline void gimple_init_singleton(gimple g __unused)
388 {
389 }
390 #endif
391 
392 #if BUILDING_GCC_VERSION == 4007 || BUILDING_GCC_VERSION == 4008
393 static inline struct cgraph_node *cgraph_alias_target(struct cgraph_node *n)
394 {
395 	return cgraph_alias_aliased_node(n);
396 }
397 #endif
398 
399 #if BUILDING_GCC_VERSION <= 4008
400 #define ENTRY_BLOCK_PTR_FOR_FN(FN)	ENTRY_BLOCK_PTR_FOR_FUNCTION(FN)
401 #define EXIT_BLOCK_PTR_FOR_FN(FN)	EXIT_BLOCK_PTR_FOR_FUNCTION(FN)
402 #define basic_block_info_for_fn(FN)	((FN)->cfg->x_basic_block_info)
403 #define n_basic_blocks_for_fn(FN)	((FN)->cfg->x_n_basic_blocks)
404 #define n_edges_for_fn(FN)		((FN)->cfg->x_n_edges)
405 #define last_basic_block_for_fn(FN)	((FN)->cfg->x_last_basic_block)
406 #define label_to_block_map_for_fn(FN)	((FN)->cfg->x_label_to_block_map)
407 #define profile_status_for_fn(FN)	((FN)->cfg->x_profile_status)
408 #define BASIC_BLOCK_FOR_FN(FN, N)	BASIC_BLOCK_FOR_FUNCTION((FN), (N))
409 #define NODE_IMPLICIT_ALIAS(node)	(node)->same_body_alias
410 #define VAR_P(NODE)			(TREE_CODE(NODE) == VAR_DECL)
411 
412 static inline bool tree_fits_shwi_p(const_tree t)
413 {
414 	if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST)
415 		return false;
416 
417 	if (TREE_INT_CST_HIGH(t) == 0 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) >= 0)
418 		return true;
419 
420 	if (TREE_INT_CST_HIGH(t) == -1 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) < 0 && !TYPE_UNSIGNED(TREE_TYPE(t)))
421 		return true;
422 
423 	return false;
424 }
425 
426 static inline bool tree_fits_uhwi_p(const_tree t)
427 {
428 	if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST)
429 		return false;
430 
431 	return TREE_INT_CST_HIGH(t) == 0;
432 }
433 
434 static inline HOST_WIDE_INT tree_to_shwi(const_tree t)
435 {
436 	gcc_assert(tree_fits_shwi_p(t));
437 	return TREE_INT_CST_LOW(t);
438 }
439 
440 static inline unsigned HOST_WIDE_INT tree_to_uhwi(const_tree t)
441 {
442 	gcc_assert(tree_fits_uhwi_p(t));
443 	return TREE_INT_CST_LOW(t);
444 }
445 
446 static inline const char *get_tree_code_name(enum tree_code code)
447 {
448 	gcc_assert(code < MAX_TREE_CODES);
449 	return tree_code_name[code];
450 }
451 
452 #define ipa_remove_stmt_references(cnode, stmt)
453 
454 typedef union gimple_statement_d gasm;
455 typedef union gimple_statement_d gassign;
456 typedef union gimple_statement_d gcall;
457 typedef union gimple_statement_d gcond;
458 typedef union gimple_statement_d gdebug;
459 typedef union gimple_statement_d ggoto;
460 typedef union gimple_statement_d gphi;
461 typedef union gimple_statement_d greturn;
462 
463 static inline gasm *as_a_gasm(gimple stmt)
464 {
465 	return stmt;
466 }
467 
468 static inline const gasm *as_a_const_gasm(const_gimple stmt)
469 {
470 	return stmt;
471 }
472 
473 static inline gassign *as_a_gassign(gimple stmt)
474 {
475 	return stmt;
476 }
477 
478 static inline const gassign *as_a_const_gassign(const_gimple stmt)
479 {
480 	return stmt;
481 }
482 
483 static inline gcall *as_a_gcall(gimple stmt)
484 {
485 	return stmt;
486 }
487 
488 static inline const gcall *as_a_const_gcall(const_gimple stmt)
489 {
490 	return stmt;
491 }
492 
493 static inline gcond *as_a_gcond(gimple stmt)
494 {
495 	return stmt;
496 }
497 
498 static inline const gcond *as_a_const_gcond(const_gimple stmt)
499 {
500 	return stmt;
501 }
502 
503 static inline gdebug *as_a_gdebug(gimple stmt)
504 {
505 	return stmt;
506 }
507 
508 static inline const gdebug *as_a_const_gdebug(const_gimple stmt)
509 {
510 	return stmt;
511 }
512 
513 static inline ggoto *as_a_ggoto(gimple stmt)
514 {
515 	return stmt;
516 }
517 
518 static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
519 {
520 	return stmt;
521 }
522 
523 static inline gphi *as_a_gphi(gimple stmt)
524 {
525 	return stmt;
526 }
527 
528 static inline const gphi *as_a_const_gphi(const_gimple stmt)
529 {
530 	return stmt;
531 }
532 
533 static inline greturn *as_a_greturn(gimple stmt)
534 {
535 	return stmt;
536 }
537 
538 static inline const greturn *as_a_const_greturn(const_gimple stmt)
539 {
540 	return stmt;
541 }
542 #endif
543 
544 #if BUILDING_GCC_VERSION == 4008
545 #define NODE_SYMBOL(node) (&(node)->symbol)
546 #define NODE_DECL(node) (node)->symbol.decl
547 #endif
548 
549 #if BUILDING_GCC_VERSION >= 4008
550 #define add_referenced_var(var)
551 #define mark_sym_for_renaming(var)
552 #define varpool_mark_needed_node(node)
553 #define create_var_ann(var)
554 #define TODO_dump_func 0
555 #define TODO_dump_cgraph 0
556 #endif
557 
558 #if BUILDING_GCC_VERSION <= 4009
559 #define TODO_verify_il 0
560 #define AVAIL_INTERPOSABLE AVAIL_OVERWRITABLE
561 
562 #define section_name_prefix LTO_SECTION_NAME_PREFIX
563 #define fatal_error(loc, gmsgid, ...) fatal_error((gmsgid), __VA_ARGS__)
564 
565 rtx emit_move_insn(rtx x, rtx y);
566 
567 typedef struct rtx_def rtx_insn;
568 
569 static inline const char *get_decl_section_name(const_tree decl)
570 {
571 	if (DECL_SECTION_NAME(decl) == NULL_TREE)
572 		return NULL;
573 
574 	return TREE_STRING_POINTER(DECL_SECTION_NAME(decl));
575 }
576 
577 static inline void set_decl_section_name(tree node, const char *value)
578 {
579 	if (value)
580 		DECL_SECTION_NAME(node) = build_string(strlen(value) + 1, value);
581 	else
582 		DECL_SECTION_NAME(node) = NULL;
583 }
584 #endif
585 
586 #if BUILDING_GCC_VERSION == 4009
587 typedef struct gimple_statement_asm gasm;
588 typedef struct gimple_statement_base gassign;
589 typedef struct gimple_statement_call gcall;
590 typedef struct gimple_statement_base gcond;
591 typedef struct gimple_statement_base gdebug;
592 typedef struct gimple_statement_base ggoto;
593 typedef struct gimple_statement_phi gphi;
594 typedef struct gimple_statement_base greturn;
595 
596 static inline gasm *as_a_gasm(gimple stmt)
597 {
598 	return as_a<gasm>(stmt);
599 }
600 
601 static inline const gasm *as_a_const_gasm(const_gimple stmt)
602 {
603 	return as_a<const gasm>(stmt);
604 }
605 
606 static inline gassign *as_a_gassign(gimple stmt)
607 {
608 	return stmt;
609 }
610 
611 static inline const gassign *as_a_const_gassign(const_gimple stmt)
612 {
613 	return stmt;
614 }
615 
616 static inline gcall *as_a_gcall(gimple stmt)
617 {
618 	return as_a<gcall>(stmt);
619 }
620 
621 static inline const gcall *as_a_const_gcall(const_gimple stmt)
622 {
623 	return as_a<const gcall>(stmt);
624 }
625 
626 static inline gcond *as_a_gcond(gimple stmt)
627 {
628 	return stmt;
629 }
630 
631 static inline const gcond *as_a_const_gcond(const_gimple stmt)
632 {
633 	return stmt;
634 }
635 
636 static inline gdebug *as_a_gdebug(gimple stmt)
637 {
638 	return stmt;
639 }
640 
641 static inline const gdebug *as_a_const_gdebug(const_gimple stmt)
642 {
643 	return stmt;
644 }
645 
646 static inline ggoto *as_a_ggoto(gimple stmt)
647 {
648 	return stmt;
649 }
650 
651 static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
652 {
653 	return stmt;
654 }
655 
656 static inline gphi *as_a_gphi(gimple stmt)
657 {
658 	return as_a<gphi>(stmt);
659 }
660 
661 static inline const gphi *as_a_const_gphi(const_gimple stmt)
662 {
663 	return as_a<const gphi>(stmt);
664 }
665 
666 static inline greturn *as_a_greturn(gimple stmt)
667 {
668 	return stmt;
669 }
670 
671 static inline const greturn *as_a_const_greturn(const_gimple stmt)
672 {
673 	return stmt;
674 }
675 #endif
676 
677 #if BUILDING_GCC_VERSION >= 4009
678 #define TODO_ggc_collect 0
679 #define NODE_SYMBOL(node) (node)
680 #define NODE_DECL(node) (node)->decl
681 #define cgraph_node_name(node) (node)->name()
682 #define NODE_IMPLICIT_ALIAS(node) (node)->cpp_implicit_alias
683 
684 static inline opt_pass *get_pass_for_id(int id)
685 {
686 	return g->get_passes()->get_pass_for_id(id);
687 }
688 #endif
689 
690 #if BUILDING_GCC_VERSION >= 5000 && BUILDING_GCC_VERSION < 6000
691 /* gimple related */
692 template <>
693 template <>
694 inline bool is_a_helper<const gassign *>::test(const_gimple gs)
695 {
696 	return gs->code == GIMPLE_ASSIGN;
697 }
698 #endif
699 
700 #if BUILDING_GCC_VERSION >= 5000
701 #define TODO_verify_ssa TODO_verify_il
702 #define TODO_verify_flow TODO_verify_il
703 #define TODO_verify_stmts TODO_verify_il
704 #define TODO_verify_rtl_sharing TODO_verify_il
705 
706 #define INSN_DELETED_P(insn) (insn)->deleted()
707 
708 static inline const char *get_decl_section_name(const_tree decl)
709 {
710 	return DECL_SECTION_NAME(decl);
711 }
712 
713 /* symtab/cgraph related */
714 #define debug_cgraph_node(node) (node)->debug()
715 #define cgraph_get_node(decl) cgraph_node::get(decl)
716 #define cgraph_get_create_node(decl) cgraph_node::get_create(decl)
717 #define cgraph_create_node(decl) cgraph_node::create(decl)
718 #define cgraph_n_nodes symtab->cgraph_count
719 #define cgraph_max_uid symtab->cgraph_max_uid
720 #define varpool_get_node(decl) varpool_node::get(decl)
721 #define dump_varpool_node(file, node) (node)->dump(file)
722 
723 #if BUILDING_GCC_VERSION >= 8000
724 #define cgraph_create_edge(caller, callee, call_stmt, count, freq) \
725 	(caller)->create_edge((callee), (call_stmt), (count))
726 
727 #define cgraph_create_edge_including_clones(caller, callee,	\
728 		old_call_stmt, call_stmt, count, freq, reason)	\
729 	(caller)->create_edge_including_clones((callee),	\
730 		(old_call_stmt), (call_stmt), (count), (reason))
731 #else
732 #define cgraph_create_edge(caller, callee, call_stmt, count, freq) \
733 	(caller)->create_edge((callee), (call_stmt), (count), (freq))
734 
735 #define cgraph_create_edge_including_clones(caller, callee,	\
736 		old_call_stmt, call_stmt, count, freq, reason)	\
737 	(caller)->create_edge_including_clones((callee),	\
738 		(old_call_stmt), (call_stmt), (count), (freq), (reason))
739 #endif
740 
741 typedef struct cgraph_node *cgraph_node_ptr;
742 typedef struct cgraph_edge *cgraph_edge_p;
743 typedef struct varpool_node *varpool_node_ptr;
744 
745 static inline void change_decl_assembler_name(tree decl, tree name)
746 {
747 	symtab->change_decl_assembler_name(decl, name);
748 }
749 
750 static inline void varpool_finalize_decl(tree decl)
751 {
752 	varpool_node::finalize_decl(decl);
753 }
754 
755 static inline void varpool_add_new_variable(tree decl)
756 {
757 	varpool_node::add(decl);
758 }
759 
760 static inline unsigned int rebuild_cgraph_edges(void)
761 {
762 	return cgraph_edge::rebuild_edges();
763 }
764 
765 static inline cgraph_node_ptr cgraph_function_node(cgraph_node_ptr node, enum availability *availability)
766 {
767 	return node->function_symbol(availability);
768 }
769 
770 static inline cgraph_node_ptr cgraph_function_or_thunk_node(cgraph_node_ptr node, enum availability *availability = NULL)
771 {
772 	return node->ultimate_alias_target(availability);
773 }
774 
775 static inline bool cgraph_only_called_directly_p(cgraph_node_ptr node)
776 {
777 	return node->only_called_directly_p();
778 }
779 
780 static inline enum availability cgraph_function_body_availability(cgraph_node_ptr node)
781 {
782 	return node->get_availability();
783 }
784 
785 static inline cgraph_node_ptr cgraph_alias_target(cgraph_node_ptr node)
786 {
787 	return node->get_alias_target();
788 }
789 
790 static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
791 {
792 	return node->call_for_symbol_thunks_and_aliases(callback, data, include_overwritable);
793 }
794 
795 static inline struct cgraph_node_hook_list *cgraph_add_function_insertion_hook(cgraph_node_hook hook, void *data)
796 {
797 	return symtab->add_cgraph_insertion_hook(hook, data);
798 }
799 
800 static inline void cgraph_remove_function_insertion_hook(struct cgraph_node_hook_list *entry)
801 {
802 	symtab->remove_cgraph_insertion_hook(entry);
803 }
804 
805 static inline struct cgraph_node_hook_list *cgraph_add_node_removal_hook(cgraph_node_hook hook, void *data)
806 {
807 	return symtab->add_cgraph_removal_hook(hook, data);
808 }
809 
810 static inline void cgraph_remove_node_removal_hook(struct cgraph_node_hook_list *entry)
811 {
812 	symtab->remove_cgraph_removal_hook(entry);
813 }
814 
815 static inline struct cgraph_2node_hook_list *cgraph_add_node_duplication_hook(cgraph_2node_hook hook, void *data)
816 {
817 	return symtab->add_cgraph_duplication_hook(hook, data);
818 }
819 
820 static inline void cgraph_remove_node_duplication_hook(struct cgraph_2node_hook_list *entry)
821 {
822 	symtab->remove_cgraph_duplication_hook(entry);
823 }
824 
825 static inline void cgraph_call_node_duplication_hooks(cgraph_node_ptr node, cgraph_node_ptr node2)
826 {
827 	symtab->call_cgraph_duplication_hooks(node, node2);
828 }
829 
830 static inline void cgraph_call_edge_duplication_hooks(cgraph_edge *cs1, cgraph_edge *cs2)
831 {
832 	symtab->call_edge_duplication_hooks(cs1, cs2);
833 }
834 
835 #if BUILDING_GCC_VERSION >= 6000
836 typedef gimple *gimple_ptr;
837 typedef const gimple *const_gimple_ptr;
838 #define gimple gimple_ptr
839 #define const_gimple const_gimple_ptr
840 #undef CONST_CAST_GIMPLE
841 #define CONST_CAST_GIMPLE(X) CONST_CAST(gimple, (X))
842 #endif
843 
844 /* gimple related */
845 static inline gimple gimple_build_assign_with_ops(enum tree_code subcode, tree lhs, tree op1, tree op2 MEM_STAT_DECL)
846 {
847 	return gimple_build_assign(lhs, subcode, op1, op2 PASS_MEM_STAT);
848 }
849 
850 template <>
851 template <>
852 inline bool is_a_helper<const ggoto *>::test(const_gimple gs)
853 {
854 	return gs->code == GIMPLE_GOTO;
855 }
856 
857 template <>
858 template <>
859 inline bool is_a_helper<const greturn *>::test(const_gimple gs)
860 {
861 	return gs->code == GIMPLE_RETURN;
862 }
863 
864 static inline gasm *as_a_gasm(gimple stmt)
865 {
866 	return as_a<gasm *>(stmt);
867 }
868 
869 static inline const gasm *as_a_const_gasm(const_gimple stmt)
870 {
871 	return as_a<const gasm *>(stmt);
872 }
873 
874 static inline gassign *as_a_gassign(gimple stmt)
875 {
876 	return as_a<gassign *>(stmt);
877 }
878 
879 static inline const gassign *as_a_const_gassign(const_gimple stmt)
880 {
881 	return as_a<const gassign *>(stmt);
882 }
883 
884 static inline gcall *as_a_gcall(gimple stmt)
885 {
886 	return as_a<gcall *>(stmt);
887 }
888 
889 static inline const gcall *as_a_const_gcall(const_gimple stmt)
890 {
891 	return as_a<const gcall *>(stmt);
892 }
893 
894 static inline ggoto *as_a_ggoto(gimple stmt)
895 {
896 	return as_a<ggoto *>(stmt);
897 }
898 
899 static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
900 {
901 	return as_a<const ggoto *>(stmt);
902 }
903 
904 static inline gphi *as_a_gphi(gimple stmt)
905 {
906 	return as_a<gphi *>(stmt);
907 }
908 
909 static inline const gphi *as_a_const_gphi(const_gimple stmt)
910 {
911 	return as_a<const gphi *>(stmt);
912 }
913 
914 static inline greturn *as_a_greturn(gimple stmt)
915 {
916 	return as_a<greturn *>(stmt);
917 }
918 
919 static inline const greturn *as_a_const_greturn(const_gimple stmt)
920 {
921 	return as_a<const greturn *>(stmt);
922 }
923 
924 /* IPA/LTO related */
925 #define ipa_ref_list_referring_iterate(L, I, P)	\
926 	(L)->referring.iterate((I), &(P))
927 #define ipa_ref_list_reference_iterate(L, I, P)	\
928 	(L)->reference.iterate((I), &(P))
929 
930 static inline cgraph_node_ptr ipa_ref_referring_node(struct ipa_ref *ref)
931 {
932 	return dyn_cast<cgraph_node_ptr>(ref->referring);
933 }
934 
935 static inline void ipa_remove_stmt_references(symtab_node *referring_node, gimple stmt)
936 {
937 	referring_node->remove_stmt_references(stmt);
938 }
939 #endif
940 
941 #if BUILDING_GCC_VERSION < 6000
942 #define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning)	\
943 	get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, pvolatilep, keep_aligning)
944 #define gen_rtx_set(ARG0, ARG1) gen_rtx_SET(VOIDmode, (ARG0), (ARG1))
945 #endif
946 
947 #if BUILDING_GCC_VERSION >= 6000
948 #define gen_rtx_set(ARG0, ARG1) gen_rtx_SET((ARG0), (ARG1))
949 #endif
950 
951 #ifdef __cplusplus
952 static inline void debug_tree(const_tree t)
953 {
954 	debug_tree(CONST_CAST_TREE(t));
955 }
956 
957 static inline void debug_gimple_stmt(const_gimple s)
958 {
959 	debug_gimple_stmt(CONST_CAST_GIMPLE(s));
960 }
961 #else
962 #define debug_tree(t) debug_tree(CONST_CAST_TREE(t))
963 #define debug_gimple_stmt(s) debug_gimple_stmt(CONST_CAST_GIMPLE(s))
964 #endif
965 
966 #if BUILDING_GCC_VERSION >= 7000
967 #define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning)	\
968 	get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep)
969 #endif
970 
971 #if BUILDING_GCC_VERSION < 7000
972 #define SET_DECL_ALIGN(decl, align)	DECL_ALIGN(decl) = (align)
973 #define SET_DECL_MODE(decl, mode)	DECL_MODE(decl) = (mode)
974 #endif
975 
976 #endif
977