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 #if BUILDING_GCC_VERSION < 10000
39 #include "params.h"
40 #endif
41 
42 #if BUILDING_GCC_VERSION <= 4009
43 #include "pointer-set.h"
44 #else
45 #include "hash-map.h"
46 #endif
47 
48 #if BUILDING_GCC_VERSION >= 7000
49 #include "memmodel.h"
50 #endif
51 #include "emit-rtl.h"
52 #include "debug.h"
53 #include "target.h"
54 #include "langhooks.h"
55 #include "cfgloop.h"
56 #include "cgraph.h"
57 #include "opts.h"
58 
59 #if BUILDING_GCC_VERSION == 4005
60 #include <sys/mman.h>
61 #endif
62 
63 #if BUILDING_GCC_VERSION >= 4007
64 #include "tree-pretty-print.h"
65 #include "gimple-pretty-print.h"
66 #endif
67 
68 #if BUILDING_GCC_VERSION >= 4006
69 /*
70  * The c-family headers were moved into a subdirectory in GCC version
71  * 4.7, but most plugin-building users of GCC 4.6 are using the Debian
72  * or Ubuntu package, which has an out-of-tree patch to move this to the
73  * same location as found in 4.7 and later:
74  * https://sources.debian.net/src/gcc-4.6/4.6.3-14/debian/patches/pr45078.diff/
75  */
76 #include "c-family/c-common.h"
77 #else
78 #include "c-common.h"
79 #endif
80 
81 #if BUILDING_GCC_VERSION <= 4008
82 #include "tree-flow.h"
83 #else
84 #include "tree-cfgcleanup.h"
85 #include "tree-ssa-operands.h"
86 #include "tree-into-ssa.h"
87 #endif
88 
89 #if BUILDING_GCC_VERSION >= 4008
90 #include "is-a.h"
91 #endif
92 
93 #include "diagnostic.h"
94 #include "tree-dump.h"
95 #include "tree-pass.h"
96 #if BUILDING_GCC_VERSION >= 4009
97 #include "pass_manager.h"
98 #endif
99 #include "predict.h"
100 #include "ipa-utils.h"
101 
102 #if BUILDING_GCC_VERSION >= 8000
103 #include "stringpool.h"
104 #endif
105 
106 #if BUILDING_GCC_VERSION >= 4009
107 #include "attribs.h"
108 #include "varasm.h"
109 #include "stor-layout.h"
110 #include "internal-fn.h"
111 #include "gimple-expr.h"
112 #include "gimple-fold.h"
113 #include "context.h"
114 #include "tree-ssa-alias.h"
115 #include "tree-ssa.h"
116 #include "stringpool.h"
117 #if BUILDING_GCC_VERSION >= 7000
118 #include "tree-vrp.h"
119 #endif
120 #include "tree-ssanames.h"
121 #include "print-tree.h"
122 #include "tree-eh.h"
123 #include "stmt.h"
124 #include "gimplify.h"
125 #endif
126 
127 #include "gimple.h"
128 
129 #if BUILDING_GCC_VERSION >= 4009
130 #include "tree-ssa-operands.h"
131 #include "tree-phinodes.h"
132 #include "tree-cfg.h"
133 #include "gimple-iterator.h"
134 #include "gimple-ssa.h"
135 #include "ssa-iterators.h"
136 #endif
137 
138 #if BUILDING_GCC_VERSION >= 5000
139 #include "builtins.h"
140 #endif
141 
142 /* missing from basic_block.h... */
143 void debug_dominance_info(enum cdi_direction dir);
144 void debug_dominance_tree(enum cdi_direction dir, basic_block root);
145 
146 #if BUILDING_GCC_VERSION == 4006
147 void debug_gimple_stmt(gimple);
148 void debug_gimple_seq(gimple_seq);
149 void print_gimple_seq(FILE *, gimple_seq, int, int);
150 void print_gimple_stmt(FILE *, gimple, int, int);
151 void print_gimple_expr(FILE *, gimple, int, int);
152 void dump_gimple_stmt(pretty_printer *, gimple, int, int);
153 #endif
154 
155 #ifndef __unused
156 #define __unused __attribute__((__unused__))
157 #endif
158 #ifndef __visible
159 #define __visible __attribute__((visibility("default")))
160 #endif
161 
162 #define DECL_NAME_POINTER(node) IDENTIFIER_POINTER(DECL_NAME(node))
163 #define DECL_NAME_LENGTH(node) IDENTIFIER_LENGTH(DECL_NAME(node))
164 #define TYPE_NAME_POINTER(node) IDENTIFIER_POINTER(TYPE_NAME(node))
165 #define TYPE_NAME_LENGTH(node) IDENTIFIER_LENGTH(TYPE_NAME(node))
166 
167 /* should come from c-tree.h if only it were installed for gcc 4.5... */
168 #define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1(TYPE)
169 
170 static inline tree build_const_char_string(int len, const char *str)
171 {
172 	tree cstr, elem, index, type;
173 
174 	cstr = build_string(len, str);
175 	elem = build_type_variant(char_type_node, 1, 0);
176 	index = build_index_type(size_int(len - 1));
177 	type = build_array_type(elem, index);
178 	TREE_TYPE(cstr) = type;
179 	TREE_CONSTANT(cstr) = 1;
180 	TREE_READONLY(cstr) = 1;
181 	TREE_STATIC(cstr) = 1;
182 	return cstr;
183 }
184 
185 #define PASS_INFO(NAME, REF, ID, POS)		\
186 struct register_pass_info NAME##_pass_info = {	\
187 	.pass = make_##NAME##_pass(),		\
188 	.reference_pass_name = REF,		\
189 	.ref_pass_instance_number = ID,		\
190 	.pos_op = POS,				\
191 }
192 
193 #if BUILDING_GCC_VERSION == 4005
194 #define FOR_EACH_LOCAL_DECL(FUN, I, D)			\
195 	for (tree vars = (FUN)->local_decls, (I) = 0;	\
196 		vars && ((D) = TREE_VALUE(vars));	\
197 		vars = TREE_CHAIN(vars), (I)++)
198 #define DECL_CHAIN(NODE) (TREE_CHAIN(DECL_MINIMAL_CHECK(NODE)))
199 #define FOR_EACH_VEC_ELT(T, V, I, P) \
200 	for (I = 0; VEC_iterate(T, (V), (I), (P)); ++(I))
201 #define TODO_rebuild_cgraph_edges 0
202 #define SCOPE_FILE_SCOPE_P(EXP) (!(EXP))
203 
204 #ifndef O_BINARY
205 #define O_BINARY 0
206 #endif
207 
208 typedef struct varpool_node *varpool_node_ptr;
209 
210 static inline bool gimple_call_builtin_p(gimple stmt, enum built_in_function code)
211 {
212 	tree fndecl;
213 
214 	if (!is_gimple_call(stmt))
215 		return false;
216 	fndecl = gimple_call_fndecl(stmt);
217 	if (!fndecl || DECL_BUILT_IN_CLASS(fndecl) != BUILT_IN_NORMAL)
218 		return false;
219 	return DECL_FUNCTION_CODE(fndecl) == code;
220 }
221 
222 static inline bool is_simple_builtin(tree decl)
223 {
224 	if (decl && DECL_BUILT_IN_CLASS(decl) != BUILT_IN_NORMAL)
225 		return false;
226 
227 	switch (DECL_FUNCTION_CODE(decl)) {
228 	/* Builtins that expand to constants. */
229 	case BUILT_IN_CONSTANT_P:
230 	case BUILT_IN_EXPECT:
231 	case BUILT_IN_OBJECT_SIZE:
232 	case BUILT_IN_UNREACHABLE:
233 	/* Simple register moves or loads from stack. */
234 	case BUILT_IN_RETURN_ADDRESS:
235 	case BUILT_IN_EXTRACT_RETURN_ADDR:
236 	case BUILT_IN_FROB_RETURN_ADDR:
237 	case BUILT_IN_RETURN:
238 	case BUILT_IN_AGGREGATE_INCOMING_ADDRESS:
239 	case BUILT_IN_FRAME_ADDRESS:
240 	case BUILT_IN_VA_END:
241 	case BUILT_IN_STACK_SAVE:
242 	case BUILT_IN_STACK_RESTORE:
243 	/* Exception state returns or moves registers around. */
244 	case BUILT_IN_EH_FILTER:
245 	case BUILT_IN_EH_POINTER:
246 	case BUILT_IN_EH_COPY_VALUES:
247 	return true;
248 
249 	default:
250 	return false;
251 	}
252 }
253 
254 static inline void add_local_decl(struct function *fun, tree d)
255 {
256 	gcc_assert(TREE_CODE(d) == VAR_DECL);
257 	fun->local_decls = tree_cons(NULL_TREE, d, fun->local_decls);
258 }
259 #endif
260 
261 #if BUILDING_GCC_VERSION <= 4006
262 #define ANY_RETURN_P(rtx) (GET_CODE(rtx) == RETURN)
263 #define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_4(EXP)
264 #define EDGE_PRESERVE 0ULL
265 #define HOST_WIDE_INT_PRINT_HEX_PURE "%" HOST_WIDE_INT_PRINT "x"
266 #define flag_fat_lto_objects true
267 
268 #define get_random_seed(noinit) ({						\
269 	unsigned HOST_WIDE_INT seed;						\
270 	sscanf(get_random_seed(noinit), "%" HOST_WIDE_INT_PRINT "x", &seed);	\
271 	seed * seed; })
272 
273 #define int_const_binop(code, arg1, arg2)	\
274 	int_const_binop((code), (arg1), (arg2), 0)
275 
276 static inline bool gimple_clobber_p(gimple s __unused)
277 {
278 	return false;
279 }
280 
281 static inline bool gimple_asm_clobbers_memory_p(const_gimple stmt)
282 {
283 	unsigned i;
284 
285 	for (i = 0; i < gimple_asm_nclobbers(stmt); i++) {
286 		tree op = gimple_asm_clobber_op(stmt, i);
287 
288 		if (!strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "memory"))
289 			return true;
290 	}
291 
292 	return false;
293 }
294 
295 static inline tree builtin_decl_implicit(enum built_in_function fncode)
296 {
297 	return implicit_built_in_decls[fncode];
298 }
299 
300 static inline int ipa_reverse_postorder(struct cgraph_node **order)
301 {
302 	return cgraph_postorder(order);
303 }
304 
305 static inline struct cgraph_node *cgraph_create_node(tree decl)
306 {
307 	return cgraph_node(decl);
308 }
309 
310 static inline struct cgraph_node *cgraph_get_create_node(tree decl)
311 {
312 	struct cgraph_node *node = cgraph_get_node(decl);
313 
314 	return node ? node : cgraph_node(decl);
315 }
316 
317 static inline bool cgraph_function_with_gimple_body_p(struct cgraph_node *node)
318 {
319 	return node->analyzed && !node->thunk.thunk_p && !node->alias;
320 }
321 
322 static inline struct cgraph_node *cgraph_first_function_with_gimple_body(void)
323 {
324 	struct cgraph_node *node;
325 
326 	for (node = cgraph_nodes; node; node = node->next)
327 		if (cgraph_function_with_gimple_body_p(node))
328 			return node;
329 	return NULL;
330 }
331 
332 static inline struct cgraph_node *cgraph_next_function_with_gimple_body(struct cgraph_node *node)
333 {
334 	for (node = node->next; node; node = node->next)
335 		if (cgraph_function_with_gimple_body_p(node))
336 			return node;
337 	return NULL;
338 }
339 
340 static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
341 {
342 	cgraph_node_ptr alias;
343 
344 	if (callback(node, data))
345 		return true;
346 
347 	for (alias = node->same_body; alias; alias = alias->next) {
348 		if (include_overwritable || cgraph_function_body_availability(alias) > AVAIL_OVERWRITABLE)
349 			if (cgraph_for_node_and_aliases(alias, callback, data, include_overwritable))
350 				return true;
351 	}
352 
353 	return false;
354 }
355 
356 #define FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) \
357 	for ((node) = cgraph_first_function_with_gimple_body(); (node); \
358 		(node) = cgraph_next_function_with_gimple_body(node))
359 
360 static inline void varpool_add_new_variable(tree decl)
361 {
362 	varpool_finalize_decl(decl);
363 }
364 #endif
365 
366 #if BUILDING_GCC_VERSION <= 4007
367 #define FOR_EACH_FUNCTION(node)	\
368 	for (node = cgraph_nodes; node; node = node->next)
369 #define FOR_EACH_VARIABLE(node)	\
370 	for (node = varpool_nodes; node; node = node->next)
371 #define PROP_loops 0
372 #define NODE_SYMBOL(node) (node)
373 #define NODE_DECL(node) (node)->decl
374 #define INSN_LOCATION(INSN) RTL_LOCATION(INSN)
375 #define vNULL NULL
376 
377 static inline int bb_loop_depth(const_basic_block bb)
378 {
379 	return bb->loop_father ? loop_depth(bb->loop_father) : 0;
380 }
381 
382 static inline bool gimple_store_p(gimple gs)
383 {
384 	tree lhs = gimple_get_lhs(gs);
385 
386 	return lhs && !is_gimple_reg(lhs);
387 }
388 
389 static inline void gimple_init_singleton(gimple g __unused)
390 {
391 }
392 #endif
393 
394 #if BUILDING_GCC_VERSION == 4007 || BUILDING_GCC_VERSION == 4008
395 static inline struct cgraph_node *cgraph_alias_target(struct cgraph_node *n)
396 {
397 	return cgraph_alias_aliased_node(n);
398 }
399 #endif
400 
401 #if BUILDING_GCC_VERSION <= 4008
402 #define ENTRY_BLOCK_PTR_FOR_FN(FN)	ENTRY_BLOCK_PTR_FOR_FUNCTION(FN)
403 #define EXIT_BLOCK_PTR_FOR_FN(FN)	EXIT_BLOCK_PTR_FOR_FUNCTION(FN)
404 #define basic_block_info_for_fn(FN)	((FN)->cfg->x_basic_block_info)
405 #define n_basic_blocks_for_fn(FN)	((FN)->cfg->x_n_basic_blocks)
406 #define n_edges_for_fn(FN)		((FN)->cfg->x_n_edges)
407 #define last_basic_block_for_fn(FN)	((FN)->cfg->x_last_basic_block)
408 #define label_to_block_map_for_fn(FN)	((FN)->cfg->x_label_to_block_map)
409 #define profile_status_for_fn(FN)	((FN)->cfg->x_profile_status)
410 #define BASIC_BLOCK_FOR_FN(FN, N)	BASIC_BLOCK_FOR_FUNCTION((FN), (N))
411 #define NODE_IMPLICIT_ALIAS(node)	(node)->same_body_alias
412 #define VAR_P(NODE)			(TREE_CODE(NODE) == VAR_DECL)
413 
414 static inline bool tree_fits_shwi_p(const_tree t)
415 {
416 	if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST)
417 		return false;
418 
419 	if (TREE_INT_CST_HIGH(t) == 0 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) >= 0)
420 		return true;
421 
422 	if (TREE_INT_CST_HIGH(t) == -1 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) < 0 && !TYPE_UNSIGNED(TREE_TYPE(t)))
423 		return true;
424 
425 	return false;
426 }
427 
428 static inline bool tree_fits_uhwi_p(const_tree t)
429 {
430 	if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST)
431 		return false;
432 
433 	return TREE_INT_CST_HIGH(t) == 0;
434 }
435 
436 static inline HOST_WIDE_INT tree_to_shwi(const_tree t)
437 {
438 	gcc_assert(tree_fits_shwi_p(t));
439 	return TREE_INT_CST_LOW(t);
440 }
441 
442 static inline unsigned HOST_WIDE_INT tree_to_uhwi(const_tree t)
443 {
444 	gcc_assert(tree_fits_uhwi_p(t));
445 	return TREE_INT_CST_LOW(t);
446 }
447 
448 static inline const char *get_tree_code_name(enum tree_code code)
449 {
450 	gcc_assert(code < MAX_TREE_CODES);
451 	return tree_code_name[code];
452 }
453 
454 #define ipa_remove_stmt_references(cnode, stmt)
455 
456 typedef union gimple_statement_d gasm;
457 typedef union gimple_statement_d gassign;
458 typedef union gimple_statement_d gcall;
459 typedef union gimple_statement_d gcond;
460 typedef union gimple_statement_d gdebug;
461 typedef union gimple_statement_d ggoto;
462 typedef union gimple_statement_d gphi;
463 typedef union gimple_statement_d greturn;
464 
465 static inline gasm *as_a_gasm(gimple stmt)
466 {
467 	return stmt;
468 }
469 
470 static inline const gasm *as_a_const_gasm(const_gimple stmt)
471 {
472 	return stmt;
473 }
474 
475 static inline gassign *as_a_gassign(gimple stmt)
476 {
477 	return stmt;
478 }
479 
480 static inline const gassign *as_a_const_gassign(const_gimple stmt)
481 {
482 	return stmt;
483 }
484 
485 static inline gcall *as_a_gcall(gimple stmt)
486 {
487 	return stmt;
488 }
489 
490 static inline const gcall *as_a_const_gcall(const_gimple stmt)
491 {
492 	return stmt;
493 }
494 
495 static inline gcond *as_a_gcond(gimple stmt)
496 {
497 	return stmt;
498 }
499 
500 static inline const gcond *as_a_const_gcond(const_gimple stmt)
501 {
502 	return stmt;
503 }
504 
505 static inline gdebug *as_a_gdebug(gimple stmt)
506 {
507 	return stmt;
508 }
509 
510 static inline const gdebug *as_a_const_gdebug(const_gimple stmt)
511 {
512 	return stmt;
513 }
514 
515 static inline ggoto *as_a_ggoto(gimple stmt)
516 {
517 	return stmt;
518 }
519 
520 static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
521 {
522 	return stmt;
523 }
524 
525 static inline gphi *as_a_gphi(gimple stmt)
526 {
527 	return stmt;
528 }
529 
530 static inline const gphi *as_a_const_gphi(const_gimple stmt)
531 {
532 	return stmt;
533 }
534 
535 static inline greturn *as_a_greturn(gimple stmt)
536 {
537 	return stmt;
538 }
539 
540 static inline const greturn *as_a_const_greturn(const_gimple stmt)
541 {
542 	return stmt;
543 }
544 #endif
545 
546 #if BUILDING_GCC_VERSION == 4008
547 #define NODE_SYMBOL(node) (&(node)->symbol)
548 #define NODE_DECL(node) (node)->symbol.decl
549 #endif
550 
551 #if BUILDING_GCC_VERSION >= 4008
552 #define add_referenced_var(var)
553 #define mark_sym_for_renaming(var)
554 #define varpool_mark_needed_node(node)
555 #define create_var_ann(var)
556 #define TODO_dump_func 0
557 #define TODO_dump_cgraph 0
558 #endif
559 
560 #if BUILDING_GCC_VERSION <= 4009
561 #define TODO_verify_il 0
562 #define AVAIL_INTERPOSABLE AVAIL_OVERWRITABLE
563 
564 #define section_name_prefix LTO_SECTION_NAME_PREFIX
565 #define fatal_error(loc, gmsgid, ...) fatal_error((gmsgid), __VA_ARGS__)
566 
567 rtx emit_move_insn(rtx x, rtx y);
568 
569 typedef struct rtx_def rtx_insn;
570 
571 static inline const char *get_decl_section_name(const_tree decl)
572 {
573 	if (DECL_SECTION_NAME(decl) == NULL_TREE)
574 		return NULL;
575 
576 	return TREE_STRING_POINTER(DECL_SECTION_NAME(decl));
577 }
578 
579 static inline void set_decl_section_name(tree node, const char *value)
580 {
581 	if (value)
582 		DECL_SECTION_NAME(node) = build_string(strlen(value) + 1, value);
583 	else
584 		DECL_SECTION_NAME(node) = NULL;
585 }
586 #endif
587 
588 #if BUILDING_GCC_VERSION == 4009
589 typedef struct gimple_statement_asm gasm;
590 typedef struct gimple_statement_base gassign;
591 typedef struct gimple_statement_call gcall;
592 typedef struct gimple_statement_base gcond;
593 typedef struct gimple_statement_base gdebug;
594 typedef struct gimple_statement_base ggoto;
595 typedef struct gimple_statement_phi gphi;
596 typedef struct gimple_statement_base greturn;
597 
598 static inline gasm *as_a_gasm(gimple stmt)
599 {
600 	return as_a<gasm>(stmt);
601 }
602 
603 static inline const gasm *as_a_const_gasm(const_gimple stmt)
604 {
605 	return as_a<const gasm>(stmt);
606 }
607 
608 static inline gassign *as_a_gassign(gimple stmt)
609 {
610 	return stmt;
611 }
612 
613 static inline const gassign *as_a_const_gassign(const_gimple stmt)
614 {
615 	return stmt;
616 }
617 
618 static inline gcall *as_a_gcall(gimple stmt)
619 {
620 	return as_a<gcall>(stmt);
621 }
622 
623 static inline const gcall *as_a_const_gcall(const_gimple stmt)
624 {
625 	return as_a<const gcall>(stmt);
626 }
627 
628 static inline gcond *as_a_gcond(gimple stmt)
629 {
630 	return stmt;
631 }
632 
633 static inline const gcond *as_a_const_gcond(const_gimple stmt)
634 {
635 	return stmt;
636 }
637 
638 static inline gdebug *as_a_gdebug(gimple stmt)
639 {
640 	return stmt;
641 }
642 
643 static inline const gdebug *as_a_const_gdebug(const_gimple stmt)
644 {
645 	return stmt;
646 }
647 
648 static inline ggoto *as_a_ggoto(gimple stmt)
649 {
650 	return stmt;
651 }
652 
653 static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
654 {
655 	return stmt;
656 }
657 
658 static inline gphi *as_a_gphi(gimple stmt)
659 {
660 	return as_a<gphi>(stmt);
661 }
662 
663 static inline const gphi *as_a_const_gphi(const_gimple stmt)
664 {
665 	return as_a<const gphi>(stmt);
666 }
667 
668 static inline greturn *as_a_greturn(gimple stmt)
669 {
670 	return stmt;
671 }
672 
673 static inline const greturn *as_a_const_greturn(const_gimple stmt)
674 {
675 	return stmt;
676 }
677 #endif
678 
679 #if BUILDING_GCC_VERSION >= 4009
680 #define TODO_ggc_collect 0
681 #define NODE_SYMBOL(node) (node)
682 #define NODE_DECL(node) (node)->decl
683 #define cgraph_node_name(node) (node)->name()
684 #define NODE_IMPLICIT_ALIAS(node) (node)->cpp_implicit_alias
685 
686 static inline opt_pass *get_pass_for_id(int id)
687 {
688 	return g->get_passes()->get_pass_for_id(id);
689 }
690 #endif
691 
692 #if BUILDING_GCC_VERSION >= 5000 && BUILDING_GCC_VERSION < 6000
693 /* gimple related */
694 template <>
695 template <>
696 inline bool is_a_helper<const gassign *>::test(const_gimple gs)
697 {
698 	return gs->code == GIMPLE_ASSIGN;
699 }
700 #endif
701 
702 #if BUILDING_GCC_VERSION >= 5000
703 #define TODO_verify_ssa TODO_verify_il
704 #define TODO_verify_flow TODO_verify_il
705 #define TODO_verify_stmts TODO_verify_il
706 #define TODO_verify_rtl_sharing TODO_verify_il
707 
708 #define INSN_DELETED_P(insn) (insn)->deleted()
709 
710 static inline const char *get_decl_section_name(const_tree decl)
711 {
712 	return DECL_SECTION_NAME(decl);
713 }
714 
715 /* symtab/cgraph related */
716 #define debug_cgraph_node(node) (node)->debug()
717 #define cgraph_get_node(decl) cgraph_node::get(decl)
718 #define cgraph_get_create_node(decl) cgraph_node::get_create(decl)
719 #define cgraph_create_node(decl) cgraph_node::create(decl)
720 #define cgraph_n_nodes symtab->cgraph_count
721 #define cgraph_max_uid symtab->cgraph_max_uid
722 #define varpool_get_node(decl) varpool_node::get(decl)
723 #define dump_varpool_node(file, node) (node)->dump(file)
724 
725 #if BUILDING_GCC_VERSION >= 8000
726 #define cgraph_create_edge(caller, callee, call_stmt, count, freq) \
727 	(caller)->create_edge((callee), (call_stmt), (count))
728 
729 #define cgraph_create_edge_including_clones(caller, callee,	\
730 		old_call_stmt, call_stmt, count, freq, reason)	\
731 	(caller)->create_edge_including_clones((callee),	\
732 		(old_call_stmt), (call_stmt), (count), (reason))
733 #else
734 #define cgraph_create_edge(caller, callee, call_stmt, count, freq) \
735 	(caller)->create_edge((callee), (call_stmt), (count), (freq))
736 
737 #define cgraph_create_edge_including_clones(caller, callee,	\
738 		old_call_stmt, call_stmt, count, freq, reason)	\
739 	(caller)->create_edge_including_clones((callee),	\
740 		(old_call_stmt), (call_stmt), (count), (freq), (reason))
741 #endif
742 
743 typedef struct cgraph_node *cgraph_node_ptr;
744 typedef struct cgraph_edge *cgraph_edge_p;
745 typedef struct varpool_node *varpool_node_ptr;
746 
747 static inline void change_decl_assembler_name(tree decl, tree name)
748 {
749 	symtab->change_decl_assembler_name(decl, name);
750 }
751 
752 static inline void varpool_finalize_decl(tree decl)
753 {
754 	varpool_node::finalize_decl(decl);
755 }
756 
757 static inline void varpool_add_new_variable(tree decl)
758 {
759 	varpool_node::add(decl);
760 }
761 
762 static inline unsigned int rebuild_cgraph_edges(void)
763 {
764 	return cgraph_edge::rebuild_edges();
765 }
766 
767 static inline cgraph_node_ptr cgraph_function_node(cgraph_node_ptr node, enum availability *availability)
768 {
769 	return node->function_symbol(availability);
770 }
771 
772 static inline cgraph_node_ptr cgraph_function_or_thunk_node(cgraph_node_ptr node, enum availability *availability = NULL)
773 {
774 	return node->ultimate_alias_target(availability);
775 }
776 
777 static inline bool cgraph_only_called_directly_p(cgraph_node_ptr node)
778 {
779 	return node->only_called_directly_p();
780 }
781 
782 static inline enum availability cgraph_function_body_availability(cgraph_node_ptr node)
783 {
784 	return node->get_availability();
785 }
786 
787 static inline cgraph_node_ptr cgraph_alias_target(cgraph_node_ptr node)
788 {
789 	return node->get_alias_target();
790 }
791 
792 static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
793 {
794 	return node->call_for_symbol_thunks_and_aliases(callback, data, include_overwritable);
795 }
796 
797 static inline struct cgraph_node_hook_list *cgraph_add_function_insertion_hook(cgraph_node_hook hook, void *data)
798 {
799 	return symtab->add_cgraph_insertion_hook(hook, data);
800 }
801 
802 static inline void cgraph_remove_function_insertion_hook(struct cgraph_node_hook_list *entry)
803 {
804 	symtab->remove_cgraph_insertion_hook(entry);
805 }
806 
807 static inline struct cgraph_node_hook_list *cgraph_add_node_removal_hook(cgraph_node_hook hook, void *data)
808 {
809 	return symtab->add_cgraph_removal_hook(hook, data);
810 }
811 
812 static inline void cgraph_remove_node_removal_hook(struct cgraph_node_hook_list *entry)
813 {
814 	symtab->remove_cgraph_removal_hook(entry);
815 }
816 
817 static inline struct cgraph_2node_hook_list *cgraph_add_node_duplication_hook(cgraph_2node_hook hook, void *data)
818 {
819 	return symtab->add_cgraph_duplication_hook(hook, data);
820 }
821 
822 static inline void cgraph_remove_node_duplication_hook(struct cgraph_2node_hook_list *entry)
823 {
824 	symtab->remove_cgraph_duplication_hook(entry);
825 }
826 
827 static inline void cgraph_call_node_duplication_hooks(cgraph_node_ptr node, cgraph_node_ptr node2)
828 {
829 	symtab->call_cgraph_duplication_hooks(node, node2);
830 }
831 
832 static inline void cgraph_call_edge_duplication_hooks(cgraph_edge *cs1, cgraph_edge *cs2)
833 {
834 	symtab->call_edge_duplication_hooks(cs1, cs2);
835 }
836 
837 #if BUILDING_GCC_VERSION >= 6000
838 typedef gimple *gimple_ptr;
839 typedef const gimple *const_gimple_ptr;
840 #define gimple gimple_ptr
841 #define const_gimple const_gimple_ptr
842 #undef CONST_CAST_GIMPLE
843 #define CONST_CAST_GIMPLE(X) CONST_CAST(gimple, (X))
844 #endif
845 
846 /* gimple related */
847 static inline gimple gimple_build_assign_with_ops(enum tree_code subcode, tree lhs, tree op1, tree op2 MEM_STAT_DECL)
848 {
849 	return gimple_build_assign(lhs, subcode, op1, op2 PASS_MEM_STAT);
850 }
851 
852 #if BUILDING_GCC_VERSION < 10000
853 template <>
854 template <>
855 inline bool is_a_helper<const ggoto *>::test(const_gimple gs)
856 {
857 	return gs->code == GIMPLE_GOTO;
858 }
859 
860 template <>
861 template <>
862 inline bool is_a_helper<const greturn *>::test(const_gimple gs)
863 {
864 	return gs->code == GIMPLE_RETURN;
865 }
866 #endif
867 
868 static inline gasm *as_a_gasm(gimple stmt)
869 {
870 	return as_a<gasm *>(stmt);
871 }
872 
873 static inline const gasm *as_a_const_gasm(const_gimple stmt)
874 {
875 	return as_a<const gasm *>(stmt);
876 }
877 
878 static inline gassign *as_a_gassign(gimple stmt)
879 {
880 	return as_a<gassign *>(stmt);
881 }
882 
883 static inline const gassign *as_a_const_gassign(const_gimple stmt)
884 {
885 	return as_a<const gassign *>(stmt);
886 }
887 
888 static inline gcall *as_a_gcall(gimple stmt)
889 {
890 	return as_a<gcall *>(stmt);
891 }
892 
893 static inline const gcall *as_a_const_gcall(const_gimple stmt)
894 {
895 	return as_a<const gcall *>(stmt);
896 }
897 
898 static inline ggoto *as_a_ggoto(gimple stmt)
899 {
900 	return as_a<ggoto *>(stmt);
901 }
902 
903 static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
904 {
905 	return as_a<const ggoto *>(stmt);
906 }
907 
908 static inline gphi *as_a_gphi(gimple stmt)
909 {
910 	return as_a<gphi *>(stmt);
911 }
912 
913 static inline const gphi *as_a_const_gphi(const_gimple stmt)
914 {
915 	return as_a<const gphi *>(stmt);
916 }
917 
918 static inline greturn *as_a_greturn(gimple stmt)
919 {
920 	return as_a<greturn *>(stmt);
921 }
922 
923 static inline const greturn *as_a_const_greturn(const_gimple stmt)
924 {
925 	return as_a<const greturn *>(stmt);
926 }
927 
928 /* IPA/LTO related */
929 #define ipa_ref_list_referring_iterate(L, I, P)	\
930 	(L)->referring.iterate((I), &(P))
931 #define ipa_ref_list_reference_iterate(L, I, P)	\
932 	(L)->reference.iterate((I), &(P))
933 
934 static inline cgraph_node_ptr ipa_ref_referring_node(struct ipa_ref *ref)
935 {
936 	return dyn_cast<cgraph_node_ptr>(ref->referring);
937 }
938 
939 static inline void ipa_remove_stmt_references(symtab_node *referring_node, gimple stmt)
940 {
941 	referring_node->remove_stmt_references(stmt);
942 }
943 #endif
944 
945 #if BUILDING_GCC_VERSION < 6000
946 #define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning)	\
947 	get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, pvolatilep, keep_aligning)
948 #define gen_rtx_set(ARG0, ARG1) gen_rtx_SET(VOIDmode, (ARG0), (ARG1))
949 #endif
950 
951 #if BUILDING_GCC_VERSION >= 6000
952 #define gen_rtx_set(ARG0, ARG1) gen_rtx_SET((ARG0), (ARG1))
953 #endif
954 
955 #ifdef __cplusplus
956 static inline void debug_tree(const_tree t)
957 {
958 	debug_tree(CONST_CAST_TREE(t));
959 }
960 
961 static inline void debug_gimple_stmt(const_gimple s)
962 {
963 	debug_gimple_stmt(CONST_CAST_GIMPLE(s));
964 }
965 #else
966 #define debug_tree(t) debug_tree(CONST_CAST_TREE(t))
967 #define debug_gimple_stmt(s) debug_gimple_stmt(CONST_CAST_GIMPLE(s))
968 #endif
969 
970 #if BUILDING_GCC_VERSION >= 7000
971 #define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning)	\
972 	get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep)
973 #endif
974 
975 #if BUILDING_GCC_VERSION < 7000
976 #define SET_DECL_ALIGN(decl, align)	DECL_ALIGN(decl) = (align)
977 #define SET_DECL_MODE(decl, mode)	DECL_MODE(decl) = (mode)
978 #endif
979 
980 #endif
981