xref: /linux/scripts/gcc-plugins/gcc-common.h (revision e9f0878c4b2004ac19581274c1ae4c61ae3ca70e)
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 #define __unused __attribute__((__unused__))
154 #define __visible __attribute__((visibility("default")))
155 
156 #define DECL_NAME_POINTER(node) IDENTIFIER_POINTER(DECL_NAME(node))
157 #define DECL_NAME_LENGTH(node) IDENTIFIER_LENGTH(DECL_NAME(node))
158 #define TYPE_NAME_POINTER(node) IDENTIFIER_POINTER(TYPE_NAME(node))
159 #define TYPE_NAME_LENGTH(node) IDENTIFIER_LENGTH(TYPE_NAME(node))
160 
161 /* should come from c-tree.h if only it were installed for gcc 4.5... */
162 #define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1(TYPE)
163 
164 static inline tree build_const_char_string(int len, const char *str)
165 {
166 	tree cstr, elem, index, type;
167 
168 	cstr = build_string(len, str);
169 	elem = build_type_variant(char_type_node, 1, 0);
170 	index = build_index_type(size_int(len - 1));
171 	type = build_array_type(elem, index);
172 	TREE_TYPE(cstr) = type;
173 	TREE_CONSTANT(cstr) = 1;
174 	TREE_READONLY(cstr) = 1;
175 	TREE_STATIC(cstr) = 1;
176 	return cstr;
177 }
178 
179 #define PASS_INFO(NAME, REF, ID, POS)		\
180 struct register_pass_info NAME##_pass_info = {	\
181 	.pass = make_##NAME##_pass(),		\
182 	.reference_pass_name = REF,		\
183 	.ref_pass_instance_number = ID,		\
184 	.pos_op = POS,				\
185 }
186 
187 #if BUILDING_GCC_VERSION == 4005
188 #define FOR_EACH_LOCAL_DECL(FUN, I, D)			\
189 	for (tree vars = (FUN)->local_decls, (I) = 0;	\
190 		vars && ((D) = TREE_VALUE(vars));	\
191 		vars = TREE_CHAIN(vars), (I)++)
192 #define DECL_CHAIN(NODE) (TREE_CHAIN(DECL_MINIMAL_CHECK(NODE)))
193 #define FOR_EACH_VEC_ELT(T, V, I, P) \
194 	for (I = 0; VEC_iterate(T, (V), (I), (P)); ++(I))
195 #define TODO_rebuild_cgraph_edges 0
196 #define SCOPE_FILE_SCOPE_P(EXP) (!(EXP))
197 
198 #ifndef O_BINARY
199 #define O_BINARY 0
200 #endif
201 
202 typedef struct varpool_node *varpool_node_ptr;
203 
204 static inline bool gimple_call_builtin_p(gimple stmt, enum built_in_function code)
205 {
206 	tree fndecl;
207 
208 	if (!is_gimple_call(stmt))
209 		return false;
210 	fndecl = gimple_call_fndecl(stmt);
211 	if (!fndecl || DECL_BUILT_IN_CLASS(fndecl) != BUILT_IN_NORMAL)
212 		return false;
213 	return DECL_FUNCTION_CODE(fndecl) == code;
214 }
215 
216 static inline bool is_simple_builtin(tree decl)
217 {
218 	if (decl && DECL_BUILT_IN_CLASS(decl) != BUILT_IN_NORMAL)
219 		return false;
220 
221 	switch (DECL_FUNCTION_CODE(decl)) {
222 	/* Builtins that expand to constants. */
223 	case BUILT_IN_CONSTANT_P:
224 	case BUILT_IN_EXPECT:
225 	case BUILT_IN_OBJECT_SIZE:
226 	case BUILT_IN_UNREACHABLE:
227 	/* Simple register moves or loads from stack. */
228 	case BUILT_IN_RETURN_ADDRESS:
229 	case BUILT_IN_EXTRACT_RETURN_ADDR:
230 	case BUILT_IN_FROB_RETURN_ADDR:
231 	case BUILT_IN_RETURN:
232 	case BUILT_IN_AGGREGATE_INCOMING_ADDRESS:
233 	case BUILT_IN_FRAME_ADDRESS:
234 	case BUILT_IN_VA_END:
235 	case BUILT_IN_STACK_SAVE:
236 	case BUILT_IN_STACK_RESTORE:
237 	/* Exception state returns or moves registers around. */
238 	case BUILT_IN_EH_FILTER:
239 	case BUILT_IN_EH_POINTER:
240 	case BUILT_IN_EH_COPY_VALUES:
241 	return true;
242 
243 	default:
244 	return false;
245 	}
246 }
247 
248 static inline void add_local_decl(struct function *fun, tree d)
249 {
250 	gcc_assert(TREE_CODE(d) == VAR_DECL);
251 	fun->local_decls = tree_cons(NULL_TREE, d, fun->local_decls);
252 }
253 #endif
254 
255 #if BUILDING_GCC_VERSION <= 4006
256 #define ANY_RETURN_P(rtx) (GET_CODE(rtx) == RETURN)
257 #define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_4(EXP)
258 #define EDGE_PRESERVE 0ULL
259 #define HOST_WIDE_INT_PRINT_HEX_PURE "%" HOST_WIDE_INT_PRINT "x"
260 #define flag_fat_lto_objects true
261 
262 #define get_random_seed(noinit) ({						\
263 	unsigned HOST_WIDE_INT seed;						\
264 	sscanf(get_random_seed(noinit), "%" HOST_WIDE_INT_PRINT "x", &seed);	\
265 	seed * seed; })
266 
267 #define int_const_binop(code, arg1, arg2)	\
268 	int_const_binop((code), (arg1), (arg2), 0)
269 
270 static inline bool gimple_clobber_p(gimple s __unused)
271 {
272 	return false;
273 }
274 
275 static inline bool gimple_asm_clobbers_memory_p(const_gimple stmt)
276 {
277 	unsigned i;
278 
279 	for (i = 0; i < gimple_asm_nclobbers(stmt); i++) {
280 		tree op = gimple_asm_clobber_op(stmt, i);
281 
282 		if (!strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "memory"))
283 			return true;
284 	}
285 
286 	return false;
287 }
288 
289 static inline tree builtin_decl_implicit(enum built_in_function fncode)
290 {
291 	return implicit_built_in_decls[fncode];
292 }
293 
294 static inline int ipa_reverse_postorder(struct cgraph_node **order)
295 {
296 	return cgraph_postorder(order);
297 }
298 
299 static inline struct cgraph_node *cgraph_create_node(tree decl)
300 {
301 	return cgraph_node(decl);
302 }
303 
304 static inline struct cgraph_node *cgraph_get_create_node(tree decl)
305 {
306 	struct cgraph_node *node = cgraph_get_node(decl);
307 
308 	return node ? node : cgraph_node(decl);
309 }
310 
311 static inline bool cgraph_function_with_gimple_body_p(struct cgraph_node *node)
312 {
313 	return node->analyzed && !node->thunk.thunk_p && !node->alias;
314 }
315 
316 static inline struct cgraph_node *cgraph_first_function_with_gimple_body(void)
317 {
318 	struct cgraph_node *node;
319 
320 	for (node = cgraph_nodes; node; node = node->next)
321 		if (cgraph_function_with_gimple_body_p(node))
322 			return node;
323 	return NULL;
324 }
325 
326 static inline struct cgraph_node *cgraph_next_function_with_gimple_body(struct cgraph_node *node)
327 {
328 	for (node = node->next; node; node = node->next)
329 		if (cgraph_function_with_gimple_body_p(node))
330 			return node;
331 	return NULL;
332 }
333 
334 static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
335 {
336 	cgraph_node_ptr alias;
337 
338 	if (callback(node, data))
339 		return true;
340 
341 	for (alias = node->same_body; alias; alias = alias->next) {
342 		if (include_overwritable || cgraph_function_body_availability(alias) > AVAIL_OVERWRITABLE)
343 			if (cgraph_for_node_and_aliases(alias, callback, data, include_overwritable))
344 				return true;
345 	}
346 
347 	return false;
348 }
349 
350 #define FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) \
351 	for ((node) = cgraph_first_function_with_gimple_body(); (node); \
352 		(node) = cgraph_next_function_with_gimple_body(node))
353 
354 static inline void varpool_add_new_variable(tree decl)
355 {
356 	varpool_finalize_decl(decl);
357 }
358 #endif
359 
360 #if BUILDING_GCC_VERSION <= 4007
361 #define FOR_EACH_FUNCTION(node)	\
362 	for (node = cgraph_nodes; node; node = node->next)
363 #define FOR_EACH_VARIABLE(node)	\
364 	for (node = varpool_nodes; node; node = node->next)
365 #define PROP_loops 0
366 #define NODE_SYMBOL(node) (node)
367 #define NODE_DECL(node) (node)->decl
368 #define INSN_LOCATION(INSN) RTL_LOCATION(INSN)
369 #define vNULL NULL
370 
371 static inline int bb_loop_depth(const_basic_block bb)
372 {
373 	return bb->loop_father ? loop_depth(bb->loop_father) : 0;
374 }
375 
376 static inline bool gimple_store_p(gimple gs)
377 {
378 	tree lhs = gimple_get_lhs(gs);
379 
380 	return lhs && !is_gimple_reg(lhs);
381 }
382 
383 static inline void gimple_init_singleton(gimple g __unused)
384 {
385 }
386 #endif
387 
388 #if BUILDING_GCC_VERSION == 4007 || BUILDING_GCC_VERSION == 4008
389 static inline struct cgraph_node *cgraph_alias_target(struct cgraph_node *n)
390 {
391 	return cgraph_alias_aliased_node(n);
392 }
393 #endif
394 
395 #if BUILDING_GCC_VERSION <= 4008
396 #define ENTRY_BLOCK_PTR_FOR_FN(FN)	ENTRY_BLOCK_PTR_FOR_FUNCTION(FN)
397 #define EXIT_BLOCK_PTR_FOR_FN(FN)	EXIT_BLOCK_PTR_FOR_FUNCTION(FN)
398 #define basic_block_info_for_fn(FN)	((FN)->cfg->x_basic_block_info)
399 #define n_basic_blocks_for_fn(FN)	((FN)->cfg->x_n_basic_blocks)
400 #define n_edges_for_fn(FN)		((FN)->cfg->x_n_edges)
401 #define last_basic_block_for_fn(FN)	((FN)->cfg->x_last_basic_block)
402 #define label_to_block_map_for_fn(FN)	((FN)->cfg->x_label_to_block_map)
403 #define profile_status_for_fn(FN)	((FN)->cfg->x_profile_status)
404 #define BASIC_BLOCK_FOR_FN(FN, N)	BASIC_BLOCK_FOR_FUNCTION((FN), (N))
405 #define NODE_IMPLICIT_ALIAS(node)	(node)->same_body_alias
406 #define VAR_P(NODE)			(TREE_CODE(NODE) == VAR_DECL)
407 
408 static inline bool tree_fits_shwi_p(const_tree t)
409 {
410 	if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST)
411 		return false;
412 
413 	if (TREE_INT_CST_HIGH(t) == 0 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) >= 0)
414 		return true;
415 
416 	if (TREE_INT_CST_HIGH(t) == -1 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) < 0 && !TYPE_UNSIGNED(TREE_TYPE(t)))
417 		return true;
418 
419 	return false;
420 }
421 
422 static inline bool tree_fits_uhwi_p(const_tree t)
423 {
424 	if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST)
425 		return false;
426 
427 	return TREE_INT_CST_HIGH(t) == 0;
428 }
429 
430 static inline HOST_WIDE_INT tree_to_shwi(const_tree t)
431 {
432 	gcc_assert(tree_fits_shwi_p(t));
433 	return TREE_INT_CST_LOW(t);
434 }
435 
436 static inline unsigned HOST_WIDE_INT tree_to_uhwi(const_tree t)
437 {
438 	gcc_assert(tree_fits_uhwi_p(t));
439 	return TREE_INT_CST_LOW(t);
440 }
441 
442 static inline const char *get_tree_code_name(enum tree_code code)
443 {
444 	gcc_assert(code < MAX_TREE_CODES);
445 	return tree_code_name[code];
446 }
447 
448 #define ipa_remove_stmt_references(cnode, stmt)
449 
450 typedef union gimple_statement_d gasm;
451 typedef union gimple_statement_d gassign;
452 typedef union gimple_statement_d gcall;
453 typedef union gimple_statement_d gcond;
454 typedef union gimple_statement_d gdebug;
455 typedef union gimple_statement_d ggoto;
456 typedef union gimple_statement_d gphi;
457 typedef union gimple_statement_d greturn;
458 
459 static inline gasm *as_a_gasm(gimple stmt)
460 {
461 	return stmt;
462 }
463 
464 static inline const gasm *as_a_const_gasm(const_gimple stmt)
465 {
466 	return stmt;
467 }
468 
469 static inline gassign *as_a_gassign(gimple stmt)
470 {
471 	return stmt;
472 }
473 
474 static inline const gassign *as_a_const_gassign(const_gimple stmt)
475 {
476 	return stmt;
477 }
478 
479 static inline gcall *as_a_gcall(gimple stmt)
480 {
481 	return stmt;
482 }
483 
484 static inline const gcall *as_a_const_gcall(const_gimple stmt)
485 {
486 	return stmt;
487 }
488 
489 static inline gcond *as_a_gcond(gimple stmt)
490 {
491 	return stmt;
492 }
493 
494 static inline const gcond *as_a_const_gcond(const_gimple stmt)
495 {
496 	return stmt;
497 }
498 
499 static inline gdebug *as_a_gdebug(gimple stmt)
500 {
501 	return stmt;
502 }
503 
504 static inline const gdebug *as_a_const_gdebug(const_gimple stmt)
505 {
506 	return stmt;
507 }
508 
509 static inline ggoto *as_a_ggoto(gimple stmt)
510 {
511 	return stmt;
512 }
513 
514 static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
515 {
516 	return stmt;
517 }
518 
519 static inline gphi *as_a_gphi(gimple stmt)
520 {
521 	return stmt;
522 }
523 
524 static inline const gphi *as_a_const_gphi(const_gimple stmt)
525 {
526 	return stmt;
527 }
528 
529 static inline greturn *as_a_greturn(gimple stmt)
530 {
531 	return stmt;
532 }
533 
534 static inline const greturn *as_a_const_greturn(const_gimple stmt)
535 {
536 	return stmt;
537 }
538 #endif
539 
540 #if BUILDING_GCC_VERSION == 4008
541 #define NODE_SYMBOL(node) (&(node)->symbol)
542 #define NODE_DECL(node) (node)->symbol.decl
543 #endif
544 
545 #if BUILDING_GCC_VERSION >= 4008
546 #define add_referenced_var(var)
547 #define mark_sym_for_renaming(var)
548 #define varpool_mark_needed_node(node)
549 #define create_var_ann(var)
550 #define TODO_dump_func 0
551 #define TODO_dump_cgraph 0
552 #endif
553 
554 #if BUILDING_GCC_VERSION <= 4009
555 #define TODO_verify_il 0
556 #define AVAIL_INTERPOSABLE AVAIL_OVERWRITABLE
557 
558 #define section_name_prefix LTO_SECTION_NAME_PREFIX
559 #define fatal_error(loc, gmsgid, ...) fatal_error((gmsgid), __VA_ARGS__)
560 
561 rtx emit_move_insn(rtx x, rtx y);
562 
563 typedef struct rtx_def rtx_insn;
564 
565 static inline const char *get_decl_section_name(const_tree decl)
566 {
567 	if (DECL_SECTION_NAME(decl) == NULL_TREE)
568 		return NULL;
569 
570 	return TREE_STRING_POINTER(DECL_SECTION_NAME(decl));
571 }
572 
573 static inline void set_decl_section_name(tree node, const char *value)
574 {
575 	if (value)
576 		DECL_SECTION_NAME(node) = build_string(strlen(value) + 1, value);
577 	else
578 		DECL_SECTION_NAME(node) = NULL;
579 }
580 #endif
581 
582 #if BUILDING_GCC_VERSION == 4009
583 typedef struct gimple_statement_asm gasm;
584 typedef struct gimple_statement_base gassign;
585 typedef struct gimple_statement_call gcall;
586 typedef struct gimple_statement_base gcond;
587 typedef struct gimple_statement_base gdebug;
588 typedef struct gimple_statement_base ggoto;
589 typedef struct gimple_statement_phi gphi;
590 typedef struct gimple_statement_base greturn;
591 
592 static inline gasm *as_a_gasm(gimple stmt)
593 {
594 	return as_a<gasm>(stmt);
595 }
596 
597 static inline const gasm *as_a_const_gasm(const_gimple stmt)
598 {
599 	return as_a<const gasm>(stmt);
600 }
601 
602 static inline gassign *as_a_gassign(gimple stmt)
603 {
604 	return stmt;
605 }
606 
607 static inline const gassign *as_a_const_gassign(const_gimple stmt)
608 {
609 	return stmt;
610 }
611 
612 static inline gcall *as_a_gcall(gimple stmt)
613 {
614 	return as_a<gcall>(stmt);
615 }
616 
617 static inline const gcall *as_a_const_gcall(const_gimple stmt)
618 {
619 	return as_a<const gcall>(stmt);
620 }
621 
622 static inline gcond *as_a_gcond(gimple stmt)
623 {
624 	return stmt;
625 }
626 
627 static inline const gcond *as_a_const_gcond(const_gimple stmt)
628 {
629 	return stmt;
630 }
631 
632 static inline gdebug *as_a_gdebug(gimple stmt)
633 {
634 	return stmt;
635 }
636 
637 static inline const gdebug *as_a_const_gdebug(const_gimple stmt)
638 {
639 	return stmt;
640 }
641 
642 static inline ggoto *as_a_ggoto(gimple stmt)
643 {
644 	return stmt;
645 }
646 
647 static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
648 {
649 	return stmt;
650 }
651 
652 static inline gphi *as_a_gphi(gimple stmt)
653 {
654 	return as_a<gphi>(stmt);
655 }
656 
657 static inline const gphi *as_a_const_gphi(const_gimple stmt)
658 {
659 	return as_a<const gphi>(stmt);
660 }
661 
662 static inline greturn *as_a_greturn(gimple stmt)
663 {
664 	return stmt;
665 }
666 
667 static inline const greturn *as_a_const_greturn(const_gimple stmt)
668 {
669 	return stmt;
670 }
671 #endif
672 
673 #if BUILDING_GCC_VERSION >= 4009
674 #define TODO_ggc_collect 0
675 #define NODE_SYMBOL(node) (node)
676 #define NODE_DECL(node) (node)->decl
677 #define cgraph_node_name(node) (node)->name()
678 #define NODE_IMPLICIT_ALIAS(node) (node)->cpp_implicit_alias
679 
680 static inline opt_pass *get_pass_for_id(int id)
681 {
682 	return g->get_passes()->get_pass_for_id(id);
683 }
684 #endif
685 
686 #if BUILDING_GCC_VERSION >= 5000 && BUILDING_GCC_VERSION < 6000
687 /* gimple related */
688 template <>
689 template <>
690 inline bool is_a_helper<const gassign *>::test(const_gimple gs)
691 {
692 	return gs->code == GIMPLE_ASSIGN;
693 }
694 #endif
695 
696 #if BUILDING_GCC_VERSION >= 5000
697 #define TODO_verify_ssa TODO_verify_il
698 #define TODO_verify_flow TODO_verify_il
699 #define TODO_verify_stmts TODO_verify_il
700 #define TODO_verify_rtl_sharing TODO_verify_il
701 
702 #define INSN_DELETED_P(insn) (insn)->deleted()
703 
704 static inline const char *get_decl_section_name(const_tree decl)
705 {
706 	return DECL_SECTION_NAME(decl);
707 }
708 
709 /* symtab/cgraph related */
710 #define debug_cgraph_node(node) (node)->debug()
711 #define cgraph_get_node(decl) cgraph_node::get(decl)
712 #define cgraph_get_create_node(decl) cgraph_node::get_create(decl)
713 #define cgraph_create_node(decl) cgraph_node::create(decl)
714 #define cgraph_n_nodes symtab->cgraph_count
715 #define cgraph_max_uid symtab->cgraph_max_uid
716 #define varpool_get_node(decl) varpool_node::get(decl)
717 #define dump_varpool_node(file, node) (node)->dump(file)
718 
719 #if BUILDING_GCC_VERSION >= 8000
720 #define cgraph_create_edge(caller, callee, call_stmt, count, freq) \
721 	(caller)->create_edge((callee), (call_stmt), (count))
722 
723 #define cgraph_create_edge_including_clones(caller, callee,	\
724 		old_call_stmt, call_stmt, count, freq, reason)	\
725 	(caller)->create_edge_including_clones((callee),	\
726 		(old_call_stmt), (call_stmt), (count), (reason))
727 #else
728 #define cgraph_create_edge(caller, callee, call_stmt, count, freq) \
729 	(caller)->create_edge((callee), (call_stmt), (count), (freq))
730 
731 #define cgraph_create_edge_including_clones(caller, callee,	\
732 		old_call_stmt, call_stmt, count, freq, reason)	\
733 	(caller)->create_edge_including_clones((callee),	\
734 		(old_call_stmt), (call_stmt), (count), (freq), (reason))
735 #endif
736 
737 typedef struct cgraph_node *cgraph_node_ptr;
738 typedef struct cgraph_edge *cgraph_edge_p;
739 typedef struct varpool_node *varpool_node_ptr;
740 
741 static inline void change_decl_assembler_name(tree decl, tree name)
742 {
743 	symtab->change_decl_assembler_name(decl, name);
744 }
745 
746 static inline void varpool_finalize_decl(tree decl)
747 {
748 	varpool_node::finalize_decl(decl);
749 }
750 
751 static inline void varpool_add_new_variable(tree decl)
752 {
753 	varpool_node::add(decl);
754 }
755 
756 static inline unsigned int rebuild_cgraph_edges(void)
757 {
758 	return cgraph_edge::rebuild_edges();
759 }
760 
761 static inline cgraph_node_ptr cgraph_function_node(cgraph_node_ptr node, enum availability *availability)
762 {
763 	return node->function_symbol(availability);
764 }
765 
766 static inline cgraph_node_ptr cgraph_function_or_thunk_node(cgraph_node_ptr node, enum availability *availability = NULL)
767 {
768 	return node->ultimate_alias_target(availability);
769 }
770 
771 static inline bool cgraph_only_called_directly_p(cgraph_node_ptr node)
772 {
773 	return node->only_called_directly_p();
774 }
775 
776 static inline enum availability cgraph_function_body_availability(cgraph_node_ptr node)
777 {
778 	return node->get_availability();
779 }
780 
781 static inline cgraph_node_ptr cgraph_alias_target(cgraph_node_ptr node)
782 {
783 	return node->get_alias_target();
784 }
785 
786 static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
787 {
788 	return node->call_for_symbol_thunks_and_aliases(callback, data, include_overwritable);
789 }
790 
791 static inline struct cgraph_node_hook_list *cgraph_add_function_insertion_hook(cgraph_node_hook hook, void *data)
792 {
793 	return symtab->add_cgraph_insertion_hook(hook, data);
794 }
795 
796 static inline void cgraph_remove_function_insertion_hook(struct cgraph_node_hook_list *entry)
797 {
798 	symtab->remove_cgraph_insertion_hook(entry);
799 }
800 
801 static inline struct cgraph_node_hook_list *cgraph_add_node_removal_hook(cgraph_node_hook hook, void *data)
802 {
803 	return symtab->add_cgraph_removal_hook(hook, data);
804 }
805 
806 static inline void cgraph_remove_node_removal_hook(struct cgraph_node_hook_list *entry)
807 {
808 	symtab->remove_cgraph_removal_hook(entry);
809 }
810 
811 static inline struct cgraph_2node_hook_list *cgraph_add_node_duplication_hook(cgraph_2node_hook hook, void *data)
812 {
813 	return symtab->add_cgraph_duplication_hook(hook, data);
814 }
815 
816 static inline void cgraph_remove_node_duplication_hook(struct cgraph_2node_hook_list *entry)
817 {
818 	symtab->remove_cgraph_duplication_hook(entry);
819 }
820 
821 static inline void cgraph_call_node_duplication_hooks(cgraph_node_ptr node, cgraph_node_ptr node2)
822 {
823 	symtab->call_cgraph_duplication_hooks(node, node2);
824 }
825 
826 static inline void cgraph_call_edge_duplication_hooks(cgraph_edge *cs1, cgraph_edge *cs2)
827 {
828 	symtab->call_edge_duplication_hooks(cs1, cs2);
829 }
830 
831 #if BUILDING_GCC_VERSION >= 6000
832 typedef gimple *gimple_ptr;
833 typedef const gimple *const_gimple_ptr;
834 #define gimple gimple_ptr
835 #define const_gimple const_gimple_ptr
836 #undef CONST_CAST_GIMPLE
837 #define CONST_CAST_GIMPLE(X) CONST_CAST(gimple, (X))
838 #endif
839 
840 /* gimple related */
841 static inline gimple gimple_build_assign_with_ops(enum tree_code subcode, tree lhs, tree op1, tree op2 MEM_STAT_DECL)
842 {
843 	return gimple_build_assign(lhs, subcode, op1, op2 PASS_MEM_STAT);
844 }
845 
846 template <>
847 template <>
848 inline bool is_a_helper<const ggoto *>::test(const_gimple gs)
849 {
850 	return gs->code == GIMPLE_GOTO;
851 }
852 
853 template <>
854 template <>
855 inline bool is_a_helper<const greturn *>::test(const_gimple gs)
856 {
857 	return gs->code == GIMPLE_RETURN;
858 }
859 
860 static inline gasm *as_a_gasm(gimple stmt)
861 {
862 	return as_a<gasm *>(stmt);
863 }
864 
865 static inline const gasm *as_a_const_gasm(const_gimple stmt)
866 {
867 	return as_a<const gasm *>(stmt);
868 }
869 
870 static inline gassign *as_a_gassign(gimple stmt)
871 {
872 	return as_a<gassign *>(stmt);
873 }
874 
875 static inline const gassign *as_a_const_gassign(const_gimple stmt)
876 {
877 	return as_a<const gassign *>(stmt);
878 }
879 
880 static inline gcall *as_a_gcall(gimple stmt)
881 {
882 	return as_a<gcall *>(stmt);
883 }
884 
885 static inline const gcall *as_a_const_gcall(const_gimple stmt)
886 {
887 	return as_a<const gcall *>(stmt);
888 }
889 
890 static inline ggoto *as_a_ggoto(gimple stmt)
891 {
892 	return as_a<ggoto *>(stmt);
893 }
894 
895 static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
896 {
897 	return as_a<const ggoto *>(stmt);
898 }
899 
900 static inline gphi *as_a_gphi(gimple stmt)
901 {
902 	return as_a<gphi *>(stmt);
903 }
904 
905 static inline const gphi *as_a_const_gphi(const_gimple stmt)
906 {
907 	return as_a<const gphi *>(stmt);
908 }
909 
910 static inline greturn *as_a_greturn(gimple stmt)
911 {
912 	return as_a<greturn *>(stmt);
913 }
914 
915 static inline const greturn *as_a_const_greturn(const_gimple stmt)
916 {
917 	return as_a<const greturn *>(stmt);
918 }
919 
920 /* IPA/LTO related */
921 #define ipa_ref_list_referring_iterate(L, I, P)	\
922 	(L)->referring.iterate((I), &(P))
923 #define ipa_ref_list_reference_iterate(L, I, P)	\
924 	(L)->reference.iterate((I), &(P))
925 
926 static inline cgraph_node_ptr ipa_ref_referring_node(struct ipa_ref *ref)
927 {
928 	return dyn_cast<cgraph_node_ptr>(ref->referring);
929 }
930 
931 static inline void ipa_remove_stmt_references(symtab_node *referring_node, gimple stmt)
932 {
933 	referring_node->remove_stmt_references(stmt);
934 }
935 #endif
936 
937 #if BUILDING_GCC_VERSION < 6000
938 #define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning)	\
939 	get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, pvolatilep, keep_aligning)
940 #define gen_rtx_set(ARG0, ARG1) gen_rtx_SET(VOIDmode, (ARG0), (ARG1))
941 #endif
942 
943 #if BUILDING_GCC_VERSION >= 6000
944 #define gen_rtx_set(ARG0, ARG1) gen_rtx_SET((ARG0), (ARG1))
945 #endif
946 
947 #ifdef __cplusplus
948 static inline void debug_tree(const_tree t)
949 {
950 	debug_tree(CONST_CAST_TREE(t));
951 }
952 
953 static inline void debug_gimple_stmt(const_gimple s)
954 {
955 	debug_gimple_stmt(CONST_CAST_GIMPLE(s));
956 }
957 #else
958 #define debug_tree(t) debug_tree(CONST_CAST_TREE(t))
959 #define debug_gimple_stmt(s) debug_gimple_stmt(CONST_CAST_GIMPLE(s))
960 #endif
961 
962 #if BUILDING_GCC_VERSION >= 7000
963 #define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning)	\
964 	get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep)
965 #endif
966 
967 #if BUILDING_GCC_VERSION < 7000
968 #define SET_DECL_ALIGN(decl, align)	DECL_ALIGN(decl) = (align)
969 #define SET_DECL_MODE(decl, mode)	DECL_MODE(decl) = (mode)
970 #endif
971 
972 #endif
973