summaryrefslogtreecommitdiff
path: root/scripts/gcc-plugins/gcc-common.h
blob: 6948898b3cdf8632e7a2b6c1bbe0530ea042c1ca (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
#ifndef GCC_COMMON_H_INCLUDED
#define GCC_COMMON_H_INCLUDED

#include "bversion.h"
#if BUILDING_GCC_VERSION >= 6000
#include "gcc-plugin.h"
#else
#include "plugin.h"
#endif
#include "plugin-version.h"
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "line-map.h"
#include "input.h"
#include "tree.h"

#include "tree-inline.h"
#include "version.h"
#include "rtl.h"
#include "tm_p.h"
#include "flags.h"
#include "hard-reg-set.h"
#include "output.h"
#include "except.h"
#include "function.h"
#include "toplev.h"
#if BUILDING_GCC_VERSION >= 5000
#include "expr.h"
#endif
#include "basic-block.h"
#include "intl.h"
#include "ggc.h"
#include "timevar.h"

#include "params.h"

#if BUILDING_GCC_VERSION <= 4009
#include "pointer-set.h"
#else
#include "hash-map.h"
#endif

#if BUILDING_GCC_VERSION >= 7000
#include "memmodel.h"
#endif
#include "emit-rtl.h"
#include "debug.h"
#include "target.h"
#include "langhooks.h"
#include "cfgloop.h"
#include "cgraph.h"
#include "opts.h"

#if BUILDING_GCC_VERSION == 4005
#include <sys/mman.h>
#endif

#if BUILDING_GCC_VERSION >= 4007
#include "tree-pretty-print.h"
#include "gimple-pretty-print.h"
#endif

#if BUILDING_GCC_VERSION >= 4006
/*
 * The c-family headers were moved into a subdirectory in GCC version
 * 4.7, but most plugin-building users of GCC 4.6 are using the Debian
 * or Ubuntu package, which has an out-of-tree patch to move this to the
 * same location as found in 4.7 and later:
 * https://sources.debian.net/src/gcc-4.6/4.6.3-14/debian/patches/pr45078.diff/
 */
#include "c-family/c-common.h"
#else
#include "c-common.h"
#endif

#if BUILDING_GCC_VERSION <= 4008
#include "tree-flow.h"
#else
#include "tree-cfgcleanup.h"
#include "tree-ssa-operands.h"
#include "tree-into-ssa.h"
#endif

#if BUILDING_GCC_VERSION >= 4008
#include "is-a.h"
#endif

#include "diagnostic.h"
#include "tree-dump.h"
#include "tree-pass.h"
#if BUILDING_GCC_VERSION >= 4009
#include "pass_manager.h"
#endif
#include "predict.h"
#include "ipa-utils.h"

#if BUILDING_GCC_VERSION >= 4009
#include "attribs.h"
#include "varasm.h"
#include "stor-layout.h"
#include "internal-fn.h"
#include "gimple-expr.h"
#include "gimple-fold.h"
#include "context.h"
#include "tree-ssa-alias.h"
#include "tree-ssa.h"
#include "stringpool.h"
#if BUILDING_GCC_VERSION >= 7000
#include "tree-vrp.h"
#endif
#include "tree-ssanames.h"
#include "print-tree.h"
#include "tree-eh.h"
#include "stmt.h"
#include "gimplify.h"
#endif

#include "gimple.h"

#if BUILDING_GCC_VERSION >= 4009
#include "tree-ssa-operands.h"
#include "tree-phinodes.h"
#include "tree-cfg.h"
#include "gimple-iterator.h"
#include "gimple-ssa.h"
#include "ssa-iterators.h"
#endif

#if BUILDING_GCC_VERSION >= 5000
#include "builtins.h"
#endif

/* missing from basic_block.h... */
void debug_dominance_info(enum cdi_direction dir);
void debug_dominance_tree(enum cdi_direction dir, basic_block root);

#if BUILDING_GCC_VERSION == 4006
void debug_gimple_stmt(gimple);
void debug_gimple_seq(gimple_seq);
void print_gimple_seq(FILE *, gimple_seq, int, int);
void print_gimple_stmt(FILE *, gimple, int, int);
void print_gimple_expr(FILE *, gimple, int, int);
void dump_gimple_stmt(pretty_printer *, gimple, int, int);
#endif

#define __unused __attribute__((__unused__))
#define __visible __attribute__((visibility("default")))

#define DECL_NAME_POINTER(node) IDENTIFIER_POINTER(DECL_NAME(node))
#define DECL_NAME_LENGTH(node) IDENTIFIER_LENGTH(DECL_NAME(node))
#define TYPE_NAME_POINTER(node) IDENTIFIER_POINTER(TYPE_NAME(node))
#define TYPE_NAME_LENGTH(node) IDENTIFIER_LENGTH(TYPE_NAME(node))

/* should come from c-tree.h if only it were installed for gcc 4.5... */
#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1(TYPE)

static inline tree build_const_char_string(int len, const char *str)
{
	tree cstr, elem, index, type;

	cstr = build_string(len, str);
	elem = build_type_variant(char_type_node, 1, 0);
	index = build_index_type(size_int(len - 1));
	type = build_array_type(elem, index);
	TREE_TYPE(cstr) = type;
	TREE_CONSTANT(cstr) = 1;
	TREE_READONLY(cstr) = 1;
	TREE_STATIC(cstr) = 1;
	return cstr;
}

#define PASS_INFO(NAME, REF, ID, POS)		\
struct register_pass_info NAME##_pass_info = {	\
	.pass = make_##NAME##_pass(),		\
	.reference_pass_name = REF,		\
	.ref_pass_instance_number = ID,		\
	.pos_op = POS,				\
}

#if BUILDING_GCC_VERSION == 4005
#define FOR_EACH_LOCAL_DECL(FUN, I, D)			\
	for (tree vars = (FUN)->local_decls, (I) = 0;	\
		vars && ((D) = TREE_VALUE(vars));	\
		vars = TREE_CHAIN(vars), (I)++)
#define DECL_CHAIN(NODE) (TREE_CHAIN(DECL_MINIMAL_CHECK(NODE)))
#define FOR_EACH_VEC_ELT(T, V, I, P) \
	for (I = 0; VEC_iterate(T, (V), (I), (P)); ++(I))
#define TODO_rebuild_cgraph_edges 0
#define SCOPE_FILE_SCOPE_P(EXP) (!(EXP))

#ifndef O_BINARY
#define O_BINARY 0
#endif

typedef struct varpool_node *varpool_node_ptr;

static inline bool gimple_call_builtin_p(gimple stmt, enum built_in_function code)
{
	tree fndecl;

	if (!is_gimple_call(stmt))
		return false;
	fndecl = gimple_call_fndecl(stmt);
	if (!fndecl || DECL_BUILT_IN_CLASS(fndecl) != BUILT_IN_NORMAL)
		return false;
	return DECL_FUNCTION_CODE(fndecl) == code;
}

static inline bool is_simple_builtin(tree decl)
{
	if (decl && DECL_BUILT_IN_CLASS(decl) != BUILT_IN_NORMAL)
		return false;

	switch (DECL_FUNCTION_CODE(decl)) {
	/* Builtins that expand to constants. */
	case BUILT_IN_CONSTANT_P:
	case BUILT_IN_EXPECT:
	case BUILT_IN_OBJECT_SIZE:
	case BUILT_IN_UNREACHABLE:
	/* Simple register moves or loads from stack. */
	case BUILT_IN_RETURN_ADDRESS:
	case BUILT_IN_EXTRACT_RETURN_ADDR:
	case BUILT_IN_FROB_RETURN_ADDR:
	case BUILT_IN_RETURN:
	case BUILT_IN_AGGREGATE_INCOMING_ADDRESS:
	case BUILT_IN_FRAME_ADDRESS:
	case BUILT_IN_VA_END:
	case BUILT_IN_STACK_SAVE:
	case BUILT_IN_STACK_RESTORE:
	/* Exception state returns or moves registers around. */
	case BUILT_IN_EH_FILTER:
	case BUILT_IN_EH_POINTER:
	case BUILT_IN_EH_COPY_VALUES:
	return true;

	default:
	return false;
	}
}

static inline void add_local_decl(struct function *fun, tree d)
{
	gcc_assert(TREE_CODE(d) == VAR_DECL);
	fun->local_decls = tree_cons(NULL_TREE, d, fun->local_decls);
}
#endif

#if BUILDING_GCC_VERSION <= 4006
#define ANY_RETURN_P(rtx) (GET_CODE(rtx) == RETURN)
#define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_4(EXP)
#define EDGE_PRESERVE 0ULL
#define HOST_WIDE_INT_PRINT_HEX_PURE "%" HOST_WIDE_INT_PRINT "x"
#define flag_fat_lto_objects true

#define get_random_seed(noinit) ({						\
	unsigned HOST_WIDE_INT seed;						\
	sscanf(get_random_seed(noinit), "%" HOST_WIDE_INT_PRINT "x", &seed);	\
	seed * seed; })

#define int_const_binop(code, arg1, arg2)	\
	int_const_binop((code), (arg1), (arg2), 0)

static inline bool gimple_clobber_p(gimple s __unused)
{
	return false;
}

static inline bool gimple_asm_clobbers_memory_p(const_gimple stmt)
{
	unsigned i;

	for (i = 0; i < gimple_asm_nclobbers(stmt); i++) {
		tree op = gimple_asm_clobber_op(stmt, i);

		if (!strcmp(TREE_STRING_POINTER(TREE_VALUE(op)), "memory"))
			return true;
	}

	return false;
}

static inline tree builtin_decl_implicit(enum built_in_function fncode)
{
	return implicit_built_in_decls[fncode];
}

static inline int ipa_reverse_postorder(struct cgraph_node **order)
{
	return cgraph_postorder(order);
}

static inline struct cgraph_node *cgraph_create_node(tree decl)
{
	return cgraph_node(decl);
}

static inline struct cgraph_node *cgraph_get_create_node(tree decl)
{
	struct cgraph_node *node = cgraph_get_node(decl);

	return node ? node : cgraph_node(decl);
}

static inline bool cgraph_function_with_gimple_body_p(struct cgraph_node *node)
{
	return node->analyzed && !node->thunk.thunk_p && !node->alias;
}

static inline struct cgraph_node *cgraph_first_function_with_gimple_body(void)
{
	struct cgraph_node *node;

	for (node = cgraph_nodes; node; node = node->next)
		if (cgraph_function_with_gimple_body_p(node))
			return node;
	return NULL;
}

static inline struct cgraph_node *cgraph_next_function_with_gimple_body(struct cgraph_node *node)
{
	for (node = node->next; node; node = node->next)
		if (cgraph_function_with_gimple_body_p(node))
			return node;
	return NULL;
}

static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
{
	cgraph_node_ptr alias;

	if (callback(node, data))
		return true;

	for (alias = node->same_body; alias; alias = alias->next) {
		if (include_overwritable || cgraph_function_body_availability(alias) > AVAIL_OVERWRITABLE)
			if (cgraph_for_node_and_aliases(alias, callback, data, include_overwritable))
				return true;
	}

	return false;
}

#define FOR_EACH_FUNCTION_WITH_GIMPLE_BODY(node) \
	for ((node) = cgraph_first_function_with_gimple_body(); (node); \
		(node) = cgraph_next_function_with_gimple_body(node))

static inline void varpool_add_new_variable(tree decl)
{
	varpool_finalize_decl(decl);
}
#endif

#if BUILDING_GCC_VERSION <= 4007
#define FOR_EACH_FUNCTION(node)	\
	for (node = cgraph_nodes; node; node = node->next)
#define FOR_EACH_VARIABLE(node)	\
	for (node = varpool_nodes; node; node = node->next)
#define PROP_loops 0
#define NODE_SYMBOL(node) (node)
#define NODE_DECL(node) (node)->decl
#define INSN_LOCATION(INSN) RTL_LOCATION(INSN)
#define vNULL NULL

static inline int bb_loop_depth(const_basic_block bb)
{
	return bb->loop_father ? loop_depth(bb->loop_father) : 0;
}

static inline bool gimple_store_p(gimple gs)
{
	tree lhs = gimple_get_lhs(gs);

	return lhs && !is_gimple_reg(lhs);
}

static inline void gimple_init_singleton(gimple g __unused)
{
}
#endif

#if BUILDING_GCC_VERSION == 4007 || BUILDING_GCC_VERSION == 4008
static inline struct cgraph_node *cgraph_alias_target(struct cgraph_node *n)
{
	return cgraph_alias_aliased_node(n);
}
#endif

#if BUILDING_GCC_VERSION >= 4007 && BUILDING_GCC_VERSION <= 4009
#define cgraph_create_edge(caller, callee, call_stmt, count, freq, nest) \
	cgraph_create_edge((caller), (callee), (call_stmt), (count), (freq))
#define cgraph_create_edge_including_clones(caller, callee, old_call_stmt, call_stmt, count, freq, nest, reason) \
	cgraph_create_edge_including_clones((caller), (callee), (old_call_stmt), (call_stmt), (count), (freq), (reason))
#endif

#if BUILDING_GCC_VERSION <= 4008
#define ENTRY_BLOCK_PTR_FOR_FN(FN)	ENTRY_BLOCK_PTR_FOR_FUNCTION(FN)
#define EXIT_BLOCK_PTR_FOR_FN(FN)	EXIT_BLOCK_PTR_FOR_FUNCTION(FN)
#define basic_block_info_for_fn(FN)	((FN)->cfg->x_basic_block_info)
#define n_basic_blocks_for_fn(FN)	((FN)->cfg->x_n_basic_blocks)
#define n_edges_for_fn(FN)		((FN)->cfg->x_n_edges)
#define last_basic_block_for_fn(FN)	((FN)->cfg->x_last_basic_block)
#define label_to_block_map_for_fn(FN)	((FN)->cfg->x_label_to_block_map)
#define profile_status_for_fn(FN)	((FN)->cfg->x_profile_status)
#define BASIC_BLOCK_FOR_FN(FN, N)	BASIC_BLOCK_FOR_FUNCTION((FN), (N))
#define NODE_IMPLICIT_ALIAS(node)	(node)->same_body_alias
#define VAR_P(NODE)			(TREE_CODE(NODE) == VAR_DECL)

static inline bool tree_fits_shwi_p(const_tree t)
{
	if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST)
		return false;

	if (TREE_INT_CST_HIGH(t) == 0 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) >= 0)
		return true;

	if (TREE_INT_CST_HIGH(t) == -1 && (HOST_WIDE_INT)TREE_INT_CST_LOW(t) < 0 && !TYPE_UNSIGNED(TREE_TYPE(t)))
		return true;

	return false;
}

static inline bool tree_fits_uhwi_p(const_tree t)
{
	if (t == NULL_TREE || TREE_CODE(t) != INTEGER_CST)
		return false;

	return TREE_INT_CST_HIGH(t) == 0;
}

static inline HOST_WIDE_INT tree_to_shwi(const_tree t)
{
	gcc_assert(tree_fits_shwi_p(t));
	return TREE_INT_CST_LOW(t);
}

static inline unsigned HOST_WIDE_INT tree_to_uhwi(const_tree t)
{
	gcc_assert(tree_fits_uhwi_p(t));
	return TREE_INT_CST_LOW(t);
}

static inline const char *get_tree_code_name(enum tree_code code)
{
	gcc_assert(code < MAX_TREE_CODES);
	return tree_code_name[code];
}

#define ipa_remove_stmt_references(cnode, stmt)

typedef union gimple_statement_d gasm;
typedef union gimple_statement_d gassign;
typedef union gimple_statement_d gcall;
typedef union gimple_statement_d gcond;
typedef union gimple_statement_d gdebug;
typedef union gimple_statement_d ggoto;
typedef union gimple_statement_d gphi;
typedef union gimple_statement_d greturn;

static inline gasm *as_a_gasm(gimple stmt)
{
	return stmt;
}

static inline const gasm *as_a_const_gasm(const_gimple stmt)
{
	return stmt;
}

static inline gassign *as_a_gassign(gimple stmt)
{
	return stmt;
}

static inline const gassign *as_a_const_gassign(const_gimple stmt)
{
	return stmt;
}

static inline gcall *as_a_gcall(gimple stmt)
{
	return stmt;
}

static inline const gcall *as_a_const_gcall(const_gimple stmt)
{
	return stmt;
}

static inline gcond *as_a_gcond(gimple stmt)
{
	return stmt;
}

static inline const gcond *as_a_const_gcond(const_gimple stmt)
{
	return stmt;
}

static inline gdebug *as_a_gdebug(gimple stmt)
{
	return stmt;
}

static inline const gdebug *as_a_const_gdebug(const_gimple stmt)
{
	return stmt;
}

static inline ggoto *as_a_ggoto(gimple stmt)
{
	return stmt;
}

static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
{
	return stmt;
}

static inline gphi *as_a_gphi(gimple stmt)
{
	return stmt;
}

static inline const gphi *as_a_const_gphi(const_gimple stmt)
{
	return stmt;
}

static inline greturn *as_a_greturn(gimple stmt)
{
	return stmt;
}

static inline const greturn *as_a_const_greturn(const_gimple stmt)
{
	return stmt;
}
#endif

#if BUILDING_GCC_VERSION == 4008
#define NODE_SYMBOL(node) (&(node)->symbol)
#define NODE_DECL(node) (node)->symbol.decl
#endif

#if BUILDING_GCC_VERSION >= 4008
#define add_referenced_var(var)
#define mark_sym_for_renaming(var)
#define varpool_mark_needed_node(node)
#define create_var_ann(var)
#define TODO_dump_func 0
#define TODO_dump_cgraph 0
#endif

#if BUILDING_GCC_VERSION <= 4009
#define TODO_verify_il 0
#define AVAIL_INTERPOSABLE AVAIL_OVERWRITABLE

#define section_name_prefix LTO_SECTION_NAME_PREFIX
#define fatal_error(loc, gmsgid, ...) fatal_error((gmsgid), __VA_ARGS__)

rtx emit_move_insn(rtx x, rtx y);

typedef struct rtx_def rtx_insn;

static inline const char *get_decl_section_name(const_tree decl)
{
	if (DECL_SECTION_NAME(decl) == NULL_TREE)
		return NULL;

	return TREE_STRING_POINTER(DECL_SECTION_NAME(decl));
}

static inline void set_decl_section_name(tree node, const char *value)
{
	if (value)
		DECL_SECTION_NAME(node) = build_string(strlen(value) + 1, value);
	else
		DECL_SECTION_NAME(node) = NULL;
}
#endif

#if BUILDING_GCC_VERSION == 4009
typedef struct gimple_statement_asm gasm;
typedef struct gimple_statement_base gassign;
typedef struct gimple_statement_call gcall;
typedef struct gimple_statement_base gcond;
typedef struct gimple_statement_base gdebug;
typedef struct gimple_statement_base ggoto;
typedef struct gimple_statement_phi gphi;
typedef struct gimple_statement_base greturn;

static inline gasm *as_a_gasm(gimple stmt)
{
	return as_a<gasm>(stmt);
}

static inline const gasm *as_a_const_gasm(const_gimple stmt)
{
	return as_a<const gasm>(stmt);
}

static inline gassign *as_a_gassign(gimple stmt)
{
	return stmt;
}

static inline const gassign *as_a_const_gassign(const_gimple stmt)
{
	return stmt;
}

static inline gcall *as_a_gcall(gimple stmt)
{
	return as_a<gcall>(stmt);
}

static inline const gcall *as_a_const_gcall(const_gimple stmt)
{
	return as_a<const gcall>(stmt);
}

static inline gcond *as_a_gcond(gimple stmt)
{
	return stmt;
}

static inline const gcond *as_a_const_gcond(const_gimple stmt)
{
	return stmt;
}

static inline gdebug *as_a_gdebug(gimple stmt)
{
	return stmt;
}

static inline const gdebug *as_a_const_gdebug(const_gimple stmt)
{
	return stmt;
}

static inline ggoto *as_a_ggoto(gimple stmt)
{
	return stmt;
}

static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
{
	return stmt;
}

static inline gphi *as_a_gphi(gimple stmt)
{
	return as_a<gphi>(stmt);
}

static inline const gphi *as_a_const_gphi(const_gimple stmt)
{
	return as_a<const gphi>(stmt);
}

static inline greturn *as_a_greturn(gimple stmt)
{
	return stmt;
}

static inline const greturn *as_a_const_greturn(const_gimple stmt)
{
	return stmt;
}
#endif

#if BUILDING_GCC_VERSION >= 4009
#define TODO_ggc_collect 0
#define NODE_SYMBOL(node) (node)
#define NODE_DECL(node) (node)->decl
#define cgraph_node_name(node) (node)->name()
#define NODE_IMPLICIT_ALIAS(node) (node)->cpp_implicit_alias

static inline opt_pass *get_pass_for_id(int id)
{
	return g->get_passes()->get_pass_for_id(id);
}
#endif

#if BUILDING_GCC_VERSION >= 5000 && BUILDING_GCC_VERSION < 6000
/* gimple related */
template <>
template <>
inline bool is_a_helper<const gassign *>::test(const_gimple gs)
{
	return gs->code == GIMPLE_ASSIGN;
}
#endif

#if BUILDING_GCC_VERSION >= 5000
#define TODO_verify_ssa TODO_verify_il
#define TODO_verify_flow TODO_verify_il
#define TODO_verify_stmts TODO_verify_il
#define TODO_verify_rtl_sharing TODO_verify_il

#define INSN_DELETED_P(insn) (insn)->deleted()

static inline const char *get_decl_section_name(const_tree decl)
{
	return DECL_SECTION_NAME(decl);
}

/* symtab/cgraph related */
#define debug_cgraph_node(node) (node)->debug()
#define cgraph_get_node(decl) cgraph_node::get(decl)
#define cgraph_get_create_node(decl) cgraph_node::get_create(decl)
#define cgraph_create_node(decl) cgraph_node::create(decl)
#define cgraph_n_nodes symtab->cgraph_count
#define cgraph_max_uid symtab->cgraph_max_uid
#define varpool_get_node(decl) varpool_node::get(decl)
#define dump_varpool_node(file, node) (node)->dump(file)

#define cgraph_create_edge(caller, callee, call_stmt, count, freq, nest) \
	(caller)->create_edge((callee), (call_stmt), (count), (freq))
#define cgraph_create_edge_including_clones(caller, callee, old_call_stmt, call_stmt, count, freq, nest, reason) \
	(caller)->create_edge_including_clones((callee), (old_call_stmt), (call_stmt), (count), (freq), (reason))

typedef struct cgraph_node *cgraph_node_ptr;
typedef struct cgraph_edge *cgraph_edge_p;
typedef struct varpool_node *varpool_node_ptr;

static inline void change_decl_assembler_name(tree decl, tree name)
{
	symtab->change_decl_assembler_name(decl, name);
}

static inline void varpool_finalize_decl(tree decl)
{
	varpool_node::finalize_decl(decl);
}

static inline void varpool_add_new_variable(tree decl)
{
	varpool_node::add(decl);
}

static inline unsigned int rebuild_cgraph_edges(void)
{
	return cgraph_edge::rebuild_edges();
}

static inline cgraph_node_ptr cgraph_function_node(cgraph_node_ptr node, enum availability *availability)
{
	return node->function_symbol(availability);
}

static inline cgraph_node_ptr cgraph_function_or_thunk_node(cgraph_node_ptr node, enum availability *availability = NULL)
{
	return node->ultimate_alias_target(availability);
}

static inline bool cgraph_only_called_directly_p(cgraph_node_ptr node)
{
	return node->only_called_directly_p();
}

static inline enum availability cgraph_function_body_availability(cgraph_node_ptr node)
{
	return node->get_availability();
}

static inline cgraph_node_ptr cgraph_alias_target(cgraph_node_ptr node)
{
	return node->get_alias_target();
}

static inline bool cgraph_for_node_and_aliases(cgraph_node_ptr node, bool (*callback)(cgraph_node_ptr, void *), void *data, bool include_overwritable)
{
	return node->call_for_symbol_thunks_and_aliases(callback, data, include_overwritable);
}

static inline struct cgraph_node_hook_list *cgraph_add_function_insertion_hook(cgraph_node_hook hook, void *data)
{
	return symtab->add_cgraph_insertion_hook(hook, data);
}

static inline void cgraph_remove_function_insertion_hook(struct cgraph_node_hook_list *entry)
{
	symtab->remove_cgraph_insertion_hook(entry);
}

static inline struct cgraph_node_hook_list *cgraph_add_node_removal_hook(cgraph_node_hook hook, void *data)
{
	return symtab->add_cgraph_removal_hook(hook, data);
}

static inline void cgraph_remove_node_removal_hook(struct cgraph_node_hook_list *entry)
{
	symtab->remove_cgraph_removal_hook(entry);
}

static inline struct cgraph_2node_hook_list *cgraph_add_node_duplication_hook(cgraph_2node_hook hook, void *data)
{
	return symtab->add_cgraph_duplication_hook(hook, data);
}

static inline void cgraph_remove_node_duplication_hook(struct cgraph_2node_hook_list *entry)
{
	symtab->remove_cgraph_duplication_hook(entry);
}

static inline void cgraph_call_node_duplication_hooks(cgraph_node_ptr node, cgraph_node_ptr node2)
{
	symtab->call_cgraph_duplication_hooks(node, node2);
}

static inline void cgraph_call_edge_duplication_hooks(cgraph_edge *cs1, cgraph_edge *cs2)
{
	symtab->call_edge_duplication_hooks(cs1, cs2);
}

#if BUILDING_GCC_VERSION >= 6000
typedef gimple *gimple_ptr;
typedef const gimple *const_gimple_ptr;
#define gimple gimple_ptr
#define const_gimple const_gimple_ptr
#undef CONST_CAST_GIMPLE
#define CONST_CAST_GIMPLE(X) CONST_CAST(gimple, (X))
#endif

/* gimple related */
static inline gimple gimple_build_assign_with_ops(enum tree_code subcode, tree lhs, tree op1, tree op2 MEM_STAT_DECL)
{
	return gimple_build_assign(lhs, subcode, op1, op2 PASS_MEM_STAT);
}

template <>
template <>
inline bool is_a_helper<const ggoto *>::test(const_gimple gs)
{
	return gs->code == GIMPLE_GOTO;
}

template <>
template <>
inline bool is_a_helper<const greturn *>::test(const_gimple gs)
{
	return gs->code == GIMPLE_RETURN;
}

static inline gasm *as_a_gasm(gimple stmt)
{
	return as_a<gasm *>(stmt);
}

static inline const gasm *as_a_const_gasm(const_gimple stmt)
{
	return as_a<const gasm *>(stmt);
}

static inline gassign *as_a_gassign(gimple stmt)
{
	return as_a<gassign *>(stmt);
}

static inline const gassign *as_a_const_gassign(const_gimple stmt)
{
	return as_a<const gassign *>(stmt);
}

static inline gcall *as_a_gcall(gimple stmt)
{
	return as_a<gcall *>(stmt);
}

static inline const gcall *as_a_const_gcall(const_gimple stmt)
{
	return as_a<const gcall *>(stmt);
}

static inline ggoto *as_a_ggoto(gimple stmt)
{
	return as_a<ggoto *>(stmt);
}

static inline const ggoto *as_a_const_ggoto(const_gimple stmt)
{
	return as_a<const ggoto *>(stmt);
}

static inline gphi *as_a_gphi(gimple stmt)
{
	return as_a<gphi *>(stmt);
}

static inline const gphi *as_a_const_gphi(const_gimple stmt)
{
	return as_a<const gphi *>(stmt);
}

static inline greturn *as_a_greturn(gimple stmt)
{
	return as_a<greturn *>(stmt);
}

static inline const greturn *as_a_const_greturn(const_gimple stmt)
{
	return as_a<const greturn *>(stmt);
}

/* IPA/LTO related */
#define ipa_ref_list_referring_iterate(L, I, P)	\
	(L)->referring.iterate((I), &(P))
#define ipa_ref_list_reference_iterate(L, I, P)	\
	(L)->reference.iterate((I), &(P))

static inline cgraph_node_ptr ipa_ref_referring_node(struct ipa_ref *ref)
{
	return dyn_cast<cgraph_node_ptr>(ref->referring);
}

static inline void ipa_remove_stmt_references(symtab_node *referring_node, gimple stmt)
{
	referring_node->remove_stmt_references(stmt);
}
#endif

#if BUILDING_GCC_VERSION < 6000
#define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning)	\
	get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, pvolatilep, keep_aligning)
#define gen_rtx_set(ARG0, ARG1) gen_rtx_SET(VOIDmode, (ARG0), (ARG1))
#endif

#if BUILDING_GCC_VERSION >= 6000
#define gen_rtx_set(ARG0, ARG1) gen_rtx_SET((ARG0), (ARG1))
#endif

#ifdef __cplusplus
static inline void debug_tree(const_tree t)
{
	debug_tree(CONST_CAST_TREE(t));
}

static inline void debug_gimple_stmt(const_gimple s)
{
	debug_gimple_stmt(CONST_CAST_GIMPLE(s));
}
#else
#define debug_tree(t) debug_tree(CONST_CAST_TREE(t))
#define debug_gimple_stmt(s) debug_gimple_stmt(CONST_CAST_GIMPLE(s))
#endif

#if BUILDING_GCC_VERSION >= 7000
#define get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep, keep_aligning)	\
	get_inner_reference(exp, pbitsize, pbitpos, poffset, pmode, punsignedp, preversep, pvolatilep)
#endif

#if BUILDING_GCC_VERSION < 7000
#define SET_DECL_ALIGN(decl, align)	DECL_ALIGN(decl) = (align)
#define SET_DECL_MODE(decl, mode)	DECL_MODE(decl) = (mode)
#endif

#endif