gimple.h revision 1.1
1/* Gimple IR definitions.
2
3   Copyright 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
4   Contributed by Aldy Hernandez <aldyh@redhat.com>
5
6This file is part of GCC.
7
8GCC is free software; you can redistribute it and/or modify it under
9the terms of the GNU General Public License as published by the Free
10Software Foundation; either version 3, or (at your option) any later
11version.
12
13GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14WARRANTY; without even the implied warranty of MERCHANTABILITY or
15FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
16for more details.
17
18You should have received a copy of the GNU General Public License
19along with GCC; see the file COPYING3.  If not see
20<http://www.gnu.org/licenses/>.  */
21
22#ifndef GCC_GIMPLE_H
23#define GCC_GIMPLE_H
24
25#include "pointer-set.h"
26#include "vec.h"
27#include "ggc.h"
28#include "tm.h"
29#include "hard-reg-set.h"
30#include "basic-block.h"
31#include "tree-ssa-operands.h"
32
33DEF_VEC_P(gimple);
34DEF_VEC_ALLOC_P(gimple,heap);
35DEF_VEC_ALLOC_P(gimple,gc);
36
37typedef gimple *gimple_p;
38DEF_VEC_P(gimple_p);
39DEF_VEC_ALLOC_P(gimple_p,heap);
40
41DEF_VEC_P(gimple_seq);
42DEF_VEC_ALLOC_P(gimple_seq,gc);
43DEF_VEC_ALLOC_P(gimple_seq,heap);
44
45/* For each block, the PHI nodes that need to be rewritten are stored into
46   these vectors.  */
47typedef VEC(gimple, heap) *gimple_vec;
48DEF_VEC_P (gimple_vec);
49DEF_VEC_ALLOC_P (gimple_vec, heap);
50
51enum gimple_code {
52#define DEFGSCODE(SYM, STRING, STRUCT)	SYM,
53#include "gimple.def"
54#undef DEFGSCODE
55    LAST_AND_UNUSED_GIMPLE_CODE
56};
57
58extern const char *const gimple_code_name[];
59extern const unsigned char gimple_rhs_class_table[];
60
61/* Error out if a gimple tuple is addressed incorrectly.  */
62#if defined ENABLE_GIMPLE_CHECKING
63extern void gimple_check_failed (const_gimple, const char *, int,          \
64                                 const char *, enum gimple_code,           \
65				 enum tree_code) ATTRIBUTE_NORETURN;
66
67#define GIMPLE_CHECK(GS, CODE)						\
68  do {									\
69    const_gimple __gs = (GS);						\
70    if (gimple_code (__gs) != (CODE))					\
71      gimple_check_failed (__gs, __FILE__, __LINE__, __FUNCTION__,	\
72	  		   (CODE), ERROR_MARK);				\
73  } while (0)
74#else  /* not ENABLE_GIMPLE_CHECKING  */
75#define GIMPLE_CHECK(GS, CODE)			(void)0
76#endif
77
78/* Class of GIMPLE expressions suitable for the RHS of assignments.  See
79   get_gimple_rhs_class.  */
80enum gimple_rhs_class
81{
82  GIMPLE_INVALID_RHS,	/* The expression cannot be used on the RHS.  */
83  GIMPLE_BINARY_RHS,	/* The expression is a binary operation.  */
84  GIMPLE_UNARY_RHS,	/* The expression is a unary operation.  */
85  GIMPLE_SINGLE_RHS	/* The expression is a single object (an SSA
86			   name, a _DECL, a _REF, etc.  */
87};
88
89/* Specific flags for individual GIMPLE statements.  These flags are
90   always stored in gimple_statement_base.subcode and they may only be
91   defined for statement codes that do not use sub-codes.
92
93   Values for the masks can overlap as long as the overlapping values
94   are never used in the same statement class.
95
96   The maximum mask value that can be defined is 1 << 15 (i.e., each
97   statement code can hold up to 16 bitflags).
98
99   Keep this list sorted.  */
100enum gf_mask {
101    GF_ASM_INPUT		= 1 << 0,
102    GF_ASM_VOLATILE		= 1 << 1,
103    GF_CALL_CANNOT_INLINE	= 1 << 0,
104    GF_CALL_FROM_THUNK		= 1 << 1,
105    GF_CALL_RETURN_SLOT_OPT	= 1 << 2,
106    GF_CALL_TAILCALL		= 1 << 3,
107    GF_CALL_VA_ARG_PACK		= 1 << 4,
108    GF_CALL_NOTHROW		= 1 << 5,
109    GF_OMP_PARALLEL_COMBINED	= 1 << 0,
110
111    /* True on an GIMPLE_OMP_RETURN statement if the return does not require
112       a thread synchronization via some sort of barrier.  The exact barrier
113       that would otherwise be emitted is dependent on the OMP statement with
114       which this return is associated.  */
115    GF_OMP_RETURN_NOWAIT	= 1 << 0,
116
117    GF_OMP_SECTION_LAST		= 1 << 0,
118    GF_PREDICT_TAKEN		= 1 << 15
119};
120
121/* Currently, there's only one type of gimple debug stmt.  Others are
122   envisioned, for example, to enable the generation of is_stmt notes
123   in line number information, to mark sequence points, etc.  This
124   subcode is to be used to tell them apart.  */
125enum gimple_debug_subcode {
126  GIMPLE_DEBUG_BIND = 0
127};
128
129/* Masks for selecting a pass local flag (PLF) to work on.  These
130   masks are used by gimple_set_plf and gimple_plf.  */
131enum plf_mask {
132    GF_PLF_1	= 1 << 0,
133    GF_PLF_2	= 1 << 1
134};
135
136/* A node in a gimple_seq_d.  */
137struct GTY((chain_next ("%h.next"), chain_prev ("%h.prev"))) gimple_seq_node_d {
138  gimple stmt;
139  struct gimple_seq_node_d *prev;
140  struct gimple_seq_node_d *next;
141};
142
143/* A double-linked sequence of gimple statements.  */
144struct GTY ((chain_next ("%h.next_free"))) gimple_seq_d {
145  /* First and last statements in the sequence.  */
146  gimple_seq_node first;
147  gimple_seq_node last;
148
149  /* Sequences are created/destroyed frequently.  To minimize
150     allocation activity, deallocated sequences are kept in a pool of
151     available sequences.  This is the pointer to the next free
152     sequence in the pool.  */
153  gimple_seq next_free;
154};
155
156
157/* Return the first node in GIMPLE sequence S.  */
158
159static inline gimple_seq_node
160gimple_seq_first (const_gimple_seq s)
161{
162  return s ? s->first : NULL;
163}
164
165
166/* Return the first statement in GIMPLE sequence S.  */
167
168static inline gimple
169gimple_seq_first_stmt (const_gimple_seq s)
170{
171  gimple_seq_node n = gimple_seq_first (s);
172  return (n) ? n->stmt : NULL;
173}
174
175
176/* Return the last node in GIMPLE sequence S.  */
177
178static inline gimple_seq_node
179gimple_seq_last (const_gimple_seq s)
180{
181  return s ? s->last : NULL;
182}
183
184
185/* Return the last statement in GIMPLE sequence S.  */
186
187static inline gimple
188gimple_seq_last_stmt (const_gimple_seq s)
189{
190  gimple_seq_node n = gimple_seq_last (s);
191  return (n) ? n->stmt : NULL;
192}
193
194
195/* Set the last node in GIMPLE sequence S to LAST.  */
196
197static inline void
198gimple_seq_set_last (gimple_seq s, gimple_seq_node last)
199{
200  s->last = last;
201}
202
203
204/* Set the first node in GIMPLE sequence S to FIRST.  */
205
206static inline void
207gimple_seq_set_first (gimple_seq s, gimple_seq_node first)
208{
209  s->first = first;
210}
211
212
213/* Return true if GIMPLE sequence S is empty.  */
214
215static inline bool
216gimple_seq_empty_p (const_gimple_seq s)
217{
218  return s == NULL || s->first == NULL;
219}
220
221
222void gimple_seq_add_stmt (gimple_seq *, gimple);
223
224/* Link gimple statement GS to the end of the sequence *SEQ_P.  If
225   *SEQ_P is NULL, a new sequence is allocated.  This function is
226   similar to gimple_seq_add_stmt, but does not scan the operands.
227   During gimplification, we need to manipulate statement sequences
228   before the def/use vectors have been constructed.  */
229void gimplify_seq_add_stmt (gimple_seq *, gimple);
230
231/* Allocate a new sequence and initialize its first element with STMT.  */
232
233static inline gimple_seq
234gimple_seq_alloc_with_stmt (gimple stmt)
235{
236  gimple_seq seq = NULL;
237  gimple_seq_add_stmt (&seq, stmt);
238  return seq;
239}
240
241
242/* Returns the sequence of statements in BB.  */
243
244static inline gimple_seq
245bb_seq (const_basic_block bb)
246{
247  return (!(bb->flags & BB_RTL) && bb->il.gimple) ? bb->il.gimple->seq : NULL;
248}
249
250
251/* Sets the sequence of statements in BB to SEQ.  */
252
253static inline void
254set_bb_seq (basic_block bb, gimple_seq seq)
255{
256  gcc_assert (!(bb->flags & BB_RTL));
257  bb->il.gimple->seq = seq;
258}
259
260/* Iterator object for GIMPLE statement sequences.  */
261
262typedef struct
263{
264  /* Sequence node holding the current statement.  */
265  gimple_seq_node ptr;
266
267  /* Sequence and basic block holding the statement.  These fields
268     are necessary to handle edge cases such as when statement is
269     added to an empty basic block or when the last statement of a
270     block/sequence is removed.  */
271  gimple_seq seq;
272  basic_block bb;
273} gimple_stmt_iterator;
274
275
276/* Data structure definitions for GIMPLE tuples.  NOTE: word markers
277   are for 64 bit hosts.  */
278
279struct GTY(()) gimple_statement_base {
280  /* [ WORD 1 ]
281     Main identifying code for a tuple.  */
282  ENUM_BITFIELD(gimple_code) code : 8;
283
284  /* Nonzero if a warning should not be emitted on this tuple.  */
285  unsigned int no_warning	: 1;
286
287  /* Nonzero if this tuple has been visited.  Passes are responsible
288     for clearing this bit before using it.  */
289  unsigned int visited		: 1;
290
291  /* Nonzero if this tuple represents a non-temporal move.  */
292  unsigned int nontemporal_move	: 1;
293
294  /* Pass local flags.  These flags are free for any pass to use as
295     they see fit.  Passes should not assume that these flags contain
296     any useful value when the pass starts.  Any initial state that
297     the pass requires should be set on entry to the pass.  See
298     gimple_set_plf and gimple_plf for usage.  */
299  unsigned int plf		: 2;
300
301  /* Nonzero if this statement has been modified and needs to have its
302     operands rescanned.  */
303  unsigned modified 		: 1;
304
305  /* Nonzero if this statement contains volatile operands.  */
306  unsigned has_volatile_ops 	: 1;
307
308  /* Padding to get subcode to 16 bit alignment.  */
309  unsigned pad			: 1;
310
311  /* The SUBCODE field can be used for tuple-specific flags for tuples
312     that do not require subcodes.  Note that SUBCODE should be at
313     least as wide as tree codes, as several tuples store tree codes
314     in there.  */
315  unsigned int subcode		: 16;
316
317  /* UID of this statement.  This is used by passes that want to
318     assign IDs to statements.  It must be assigned and used by each
319     pass.  By default it should be assumed to contain garbage.  */
320  unsigned uid;
321
322  /* [ WORD 2 ]
323     Locus information for debug info.  */
324  location_t location;
325
326  /* Number of operands in this tuple.  */
327  unsigned num_ops;
328
329  /* [ WORD 3 ]
330     Basic block holding this statement.  */
331  struct basic_block_def *bb;
332
333  /* [ WORD 4 ]
334     Lexical block holding this statement.  */
335  tree block;
336};
337
338
339/* Base structure for tuples with operands.  */
340
341struct GTY(()) gimple_statement_with_ops_base
342{
343  /* [ WORD 1-4 ]  */
344  struct gimple_statement_base gsbase;
345
346  /* [ WORD 5-6 ]
347     SSA operand vectors.  NOTE: It should be possible to
348     amalgamate these vectors with the operand vector OP.  However,
349     the SSA operand vectors are organized differently and contain
350     more information (like immediate use chaining).  */
351  struct def_optype_d GTY((skip (""))) *def_ops;
352  struct use_optype_d GTY((skip (""))) *use_ops;
353};
354
355
356/* Statements that take register operands.  */
357
358struct GTY(()) gimple_statement_with_ops
359{
360  /* [ WORD 1-6 ]  */
361  struct gimple_statement_with_ops_base opbase;
362
363  /* [ WORD 7 ]
364     Operand vector.  NOTE!  This must always be the last field
365     of this structure.  In particular, this means that this
366     structure cannot be embedded inside another one.  */
367  tree GTY((length ("%h.opbase.gsbase.num_ops"))) op[1];
368};
369
370
371/* Base for statements that take both memory and register operands.  */
372
373struct GTY(()) gimple_statement_with_memory_ops_base
374{
375  /* [ WORD 1-6 ]  */
376  struct gimple_statement_with_ops_base opbase;
377
378  /* [ WORD 7-8 ]
379     Virtual operands for this statement.  The GC will pick them
380     up via the ssa_names array.  */
381  tree GTY((skip (""))) vdef;
382  tree GTY((skip (""))) vuse;
383};
384
385
386/* Statements that take both memory and register operands.  */
387
388struct GTY(()) gimple_statement_with_memory_ops
389{
390  /* [ WORD 1-8 ]  */
391  struct gimple_statement_with_memory_ops_base membase;
392
393  /* [ WORD 9 ]
394     Operand vector.  NOTE!  This must always be the last field
395     of this structure.  In particular, this means that this
396     structure cannot be embedded inside another one.  */
397  tree GTY((length ("%h.membase.opbase.gsbase.num_ops"))) op[1];
398};
399
400
401/* OpenMP statements (#pragma omp).  */
402
403struct GTY(()) gimple_statement_omp {
404  /* [ WORD 1-4 ]  */
405  struct gimple_statement_base gsbase;
406
407  /* [ WORD 5 ]  */
408  gimple_seq body;
409};
410
411
412/* GIMPLE_BIND */
413
414struct GTY(()) gimple_statement_bind {
415  /* [ WORD 1-4 ]  */
416  struct gimple_statement_base gsbase;
417
418  /* [ WORD 5 ]
419     Variables declared in this scope.  */
420  tree vars;
421
422  /* [ WORD 6 ]
423     This is different than the BLOCK field in gimple_statement_base,
424     which is analogous to TREE_BLOCK (i.e., the lexical block holding
425     this statement).  This field is the equivalent of BIND_EXPR_BLOCK
426     in tree land (i.e., the lexical scope defined by this bind).  See
427     gimple-low.c.  */
428  tree block;
429
430  /* [ WORD 7 ]  */
431  gimple_seq body;
432};
433
434
435/* GIMPLE_CATCH */
436
437struct GTY(()) gimple_statement_catch {
438  /* [ WORD 1-4 ]  */
439  struct gimple_statement_base gsbase;
440
441  /* [ WORD 5 ]  */
442  tree types;
443
444  /* [ WORD 6 ]  */
445  gimple_seq handler;
446};
447
448
449/* GIMPLE_EH_FILTER */
450
451struct GTY(()) gimple_statement_eh_filter {
452  /* [ WORD 1-4 ]  */
453  struct gimple_statement_base gsbase;
454
455  /* [ WORD 5 ]
456     Filter types.  */
457  tree types;
458
459  /* [ WORD 6 ]
460     Failure actions.  */
461  gimple_seq failure;
462};
463
464
465/* GIMPLE_EH_MUST_NOT_THROW */
466
467struct GTY(()) gimple_statement_eh_mnt {
468  /* [ WORD 1-4 ]  */
469  struct gimple_statement_base gsbase;
470
471  /* [ WORD 5 ] Abort function decl.  */
472  tree fndecl;
473};
474
475/* GIMPLE_PHI */
476
477struct GTY(()) gimple_statement_phi {
478  /* [ WORD 1-4 ]  */
479  struct gimple_statement_base gsbase;
480
481  /* [ WORD 5 ]  */
482  unsigned capacity;
483  unsigned nargs;
484
485  /* [ WORD 6 ]  */
486  tree result;
487
488  /* [ WORD 7 ]  */
489  struct phi_arg_d GTY ((length ("%h.nargs"))) args[1];
490};
491
492
493/* GIMPLE_RESX, GIMPLE_EH_DISPATCH */
494
495struct GTY(()) gimple_statement_eh_ctrl
496{
497  /* [ WORD 1-4 ]  */
498  struct gimple_statement_base gsbase;
499
500  /* [ WORD 5 ]
501     Exception region number.  */
502  int region;
503};
504
505
506/* GIMPLE_TRY */
507
508struct GTY(()) gimple_statement_try {
509  /* [ WORD 1-4 ]  */
510  struct gimple_statement_base gsbase;
511
512  /* [ WORD 5 ]
513     Expression to evaluate.  */
514  gimple_seq eval;
515
516  /* [ WORD 6 ]
517     Cleanup expression.  */
518  gimple_seq cleanup;
519};
520
521/* Kind of GIMPLE_TRY statements.  */
522enum gimple_try_flags
523{
524  /* A try/catch.  */
525  GIMPLE_TRY_CATCH = 1 << 0,
526
527  /* A try/finally.  */
528  GIMPLE_TRY_FINALLY = 1 << 1,
529  GIMPLE_TRY_KIND = GIMPLE_TRY_CATCH | GIMPLE_TRY_FINALLY,
530
531  /* Analogous to TRY_CATCH_IS_CLEANUP.  */
532  GIMPLE_TRY_CATCH_IS_CLEANUP = 1 << 2
533};
534
535/* GIMPLE_WITH_CLEANUP_EXPR */
536
537struct GTY(()) gimple_statement_wce {
538  /* [ WORD 1-4 ]  */
539  struct gimple_statement_base gsbase;
540
541  /* Subcode: CLEANUP_EH_ONLY.  True if the cleanup should only be
542	      executed if an exception is thrown, not on normal exit of its
543	      scope.  This flag is analogous to the CLEANUP_EH_ONLY flag
544	      in TARGET_EXPRs.  */
545
546  /* [ WORD 5 ]
547     Cleanup expression.  */
548  gimple_seq cleanup;
549};
550
551
552/* GIMPLE_ASM  */
553
554struct GTY(()) gimple_statement_asm
555{
556  /* [ WORD 1-8 ]  */
557  struct gimple_statement_with_memory_ops_base membase;
558
559  /* [ WORD 9 ]
560     __asm__ statement.  */
561  const char *string;
562
563  /* [ WORD 10 ]
564       Number of inputs, outputs, clobbers, labels.  */
565  unsigned char ni;
566  unsigned char no;
567  unsigned char nc;
568  unsigned char nl;
569
570  /* [ WORD 11 ]
571     Operand vector.  NOTE!  This must always be the last field
572     of this structure.  In particular, this means that this
573     structure cannot be embedded inside another one.  */
574  tree GTY((length ("%h.membase.opbase.gsbase.num_ops"))) op[1];
575};
576
577/* GIMPLE_OMP_CRITICAL */
578
579struct GTY(()) gimple_statement_omp_critical {
580  /* [ WORD 1-5 ]  */
581  struct gimple_statement_omp omp;
582
583  /* [ WORD 6 ]
584     Critical section name.  */
585  tree name;
586};
587
588
589struct GTY(()) gimple_omp_for_iter {
590  /* Condition code.  */
591  enum tree_code cond;
592
593  /* Index variable.  */
594  tree index;
595
596  /* Initial value.  */
597  tree initial;
598
599  /* Final value.  */
600  tree final;
601
602  /* Increment.  */
603  tree incr;
604};
605
606/* GIMPLE_OMP_FOR */
607
608struct GTY(()) gimple_statement_omp_for {
609  /* [ WORD 1-5 ]  */
610  struct gimple_statement_omp omp;
611
612  /* [ WORD 6 ]  */
613  tree clauses;
614
615  /* [ WORD 7 ]
616     Number of elements in iter array.  */
617  size_t collapse;
618
619  /* [ WORD 8 ]  */
620  struct gimple_omp_for_iter * GTY((length ("%h.collapse"))) iter;
621
622  /* [ WORD 9 ]
623     Pre-body evaluated before the loop body begins.  */
624  gimple_seq pre_body;
625};
626
627
628/* GIMPLE_OMP_PARALLEL */
629
630struct GTY(()) gimple_statement_omp_parallel {
631  /* [ WORD 1-5 ]  */
632  struct gimple_statement_omp omp;
633
634  /* [ WORD 6 ]
635     Clauses.  */
636  tree clauses;
637
638  /* [ WORD 7 ]
639     Child function holding the body of the parallel region.  */
640  tree child_fn;
641
642  /* [ WORD 8 ]
643     Shared data argument.  */
644  tree data_arg;
645};
646
647
648/* GIMPLE_OMP_TASK */
649
650struct GTY(()) gimple_statement_omp_task {
651  /* [ WORD 1-8 ]  */
652  struct gimple_statement_omp_parallel par;
653
654  /* [ WORD 9 ]
655     Child function holding firstprivate initialization if needed.  */
656  tree copy_fn;
657
658  /* [ WORD 10-11 ]
659     Size and alignment in bytes of the argument data block.  */
660  tree arg_size;
661  tree arg_align;
662};
663
664
665/* GIMPLE_OMP_SECTION */
666/* Uses struct gimple_statement_omp.  */
667
668
669/* GIMPLE_OMP_SECTIONS */
670
671struct GTY(()) gimple_statement_omp_sections {
672  /* [ WORD 1-5 ]  */
673  struct gimple_statement_omp omp;
674
675  /* [ WORD 6 ]  */
676  tree clauses;
677
678  /* [ WORD 7 ]
679     The control variable used for deciding which of the sections to
680     execute.  */
681  tree control;
682};
683
684/* GIMPLE_OMP_CONTINUE.
685
686   Note: This does not inherit from gimple_statement_omp, because we
687         do not need the body field.  */
688
689struct GTY(()) gimple_statement_omp_continue {
690  /* [ WORD 1-4 ]  */
691  struct gimple_statement_base gsbase;
692
693  /* [ WORD 5 ]  */
694  tree control_def;
695
696  /* [ WORD 6 ]  */
697  tree control_use;
698};
699
700/* GIMPLE_OMP_SINGLE */
701
702struct GTY(()) gimple_statement_omp_single {
703  /* [ WORD 1-5 ]  */
704  struct gimple_statement_omp omp;
705
706  /* [ WORD 6 ]  */
707  tree clauses;
708};
709
710
711/* GIMPLE_OMP_ATOMIC_LOAD.
712   Note: This is based on gimple_statement_base, not g_s_omp, because g_s_omp
713   contains a sequence, which we don't need here.  */
714
715struct GTY(()) gimple_statement_omp_atomic_load {
716  /* [ WORD 1-4 ]  */
717  struct gimple_statement_base gsbase;
718
719  /* [ WORD 5-6 ]  */
720  tree rhs, lhs;
721};
722
723/* GIMPLE_OMP_ATOMIC_STORE.
724   See note on GIMPLE_OMP_ATOMIC_LOAD.  */
725
726struct GTY(()) gimple_statement_omp_atomic_store {
727  /* [ WORD 1-4 ]  */
728  struct gimple_statement_base gsbase;
729
730  /* [ WORD 5 ]  */
731  tree val;
732};
733
734#define DEFGSSTRUCT(SYM, STRUCT, HAS_TREE_OP)	SYM,
735enum gimple_statement_structure_enum {
736#include "gsstruct.def"
737    LAST_GSS_ENUM
738};
739#undef DEFGSSTRUCT
740
741
742/* Define the overall contents of a gimple tuple.  It may be any of the
743   structures declared above for various types of tuples.  */
744
745union GTY ((desc ("gimple_statement_structure (&%h)"))) gimple_statement_d {
746  struct gimple_statement_base GTY ((tag ("GSS_BASE"))) gsbase;
747  struct gimple_statement_with_ops GTY ((tag ("GSS_WITH_OPS"))) gsops;
748  struct gimple_statement_with_memory_ops_base GTY ((tag ("GSS_WITH_MEM_OPS_BASE"))) gsmembase;
749  struct gimple_statement_with_memory_ops GTY ((tag ("GSS_WITH_MEM_OPS"))) gsmem;
750  struct gimple_statement_omp GTY ((tag ("GSS_OMP"))) omp;
751  struct gimple_statement_bind GTY ((tag ("GSS_BIND"))) gimple_bind;
752  struct gimple_statement_catch GTY ((tag ("GSS_CATCH"))) gimple_catch;
753  struct gimple_statement_eh_filter GTY ((tag ("GSS_EH_FILTER"))) gimple_eh_filter;
754  struct gimple_statement_eh_mnt GTY ((tag ("GSS_EH_MNT"))) gimple_eh_mnt;
755  struct gimple_statement_phi GTY ((tag ("GSS_PHI"))) gimple_phi;
756  struct gimple_statement_eh_ctrl GTY ((tag ("GSS_EH_CTRL"))) gimple_eh_ctrl;
757  struct gimple_statement_try GTY ((tag ("GSS_TRY"))) gimple_try;
758  struct gimple_statement_wce GTY ((tag ("GSS_WCE"))) gimple_wce;
759  struct gimple_statement_asm GTY ((tag ("GSS_ASM"))) gimple_asm;
760  struct gimple_statement_omp_critical GTY ((tag ("GSS_OMP_CRITICAL"))) gimple_omp_critical;
761  struct gimple_statement_omp_for GTY ((tag ("GSS_OMP_FOR"))) gimple_omp_for;
762  struct gimple_statement_omp_parallel GTY ((tag ("GSS_OMP_PARALLEL"))) gimple_omp_parallel;
763  struct gimple_statement_omp_task GTY ((tag ("GSS_OMP_TASK"))) gimple_omp_task;
764  struct gimple_statement_omp_sections GTY ((tag ("GSS_OMP_SECTIONS"))) gimple_omp_sections;
765  struct gimple_statement_omp_single GTY ((tag ("GSS_OMP_SINGLE"))) gimple_omp_single;
766  struct gimple_statement_omp_continue GTY ((tag ("GSS_OMP_CONTINUE"))) gimple_omp_continue;
767  struct gimple_statement_omp_atomic_load GTY ((tag ("GSS_OMP_ATOMIC_LOAD"))) gimple_omp_atomic_load;
768  struct gimple_statement_omp_atomic_store GTY ((tag ("GSS_OMP_ATOMIC_STORE"))) gimple_omp_atomic_store;
769};
770
771/* In gimple.c.  */
772
773/* Offset in bytes to the location of the operand vector.
774   Zero if there is no operand vector for this tuple structure.  */
775extern size_t const gimple_ops_offset_[];
776
777/* Map GIMPLE codes to GSS codes.  */
778extern enum gimple_statement_structure_enum const gss_for_code_[];
779
780/* This variable holds the currently expanded gimple statement for purposes
781   of comminucating the profile info to the builtin expanders.  */
782extern gimple currently_expanding_gimple_stmt;
783
784gimple gimple_build_return (tree);
785
786gimple gimple_build_assign_stat (tree, tree MEM_STAT_DECL);
787#define gimple_build_assign(l,r) gimple_build_assign_stat (l, r MEM_STAT_INFO)
788
789void extract_ops_from_tree (tree, enum tree_code *, tree *, tree *);
790
791gimple gimple_build_assign_with_ops_stat (enum tree_code, tree, tree,
792					  tree MEM_STAT_DECL);
793#define gimple_build_assign_with_ops(c,o1,o2,o3) \
794  gimple_build_assign_with_ops_stat (c, o1, o2, o3 MEM_STAT_INFO)
795
796gimple gimple_build_debug_bind_stat (tree, tree, gimple MEM_STAT_DECL);
797#define gimple_build_debug_bind(var,val,stmt)			\
798  gimple_build_debug_bind_stat ((var), (val), (stmt) MEM_STAT_INFO)
799
800gimple gimple_build_call_vec (tree, VEC(tree, heap) *);
801gimple gimple_build_call (tree, unsigned, ...);
802gimple gimple_build_call_from_tree (tree);
803gimple gimplify_assign (tree, tree, gimple_seq *);
804gimple gimple_build_cond (enum tree_code, tree, tree, tree, tree);
805gimple gimple_build_label (tree label);
806gimple gimple_build_goto (tree dest);
807gimple gimple_build_nop (void);
808gimple gimple_build_bind (tree, gimple_seq, tree);
809gimple gimple_build_asm_vec (const char *, VEC(tree,gc) *, VEC(tree,gc) *,
810                             VEC(tree,gc) *, VEC(tree,gc) *);
811gimple gimple_build_catch (tree, gimple_seq);
812gimple gimple_build_eh_filter (tree, gimple_seq);
813gimple gimple_build_eh_must_not_throw (tree);
814gimple gimple_build_try (gimple_seq, gimple_seq, enum gimple_try_flags);
815gimple gimple_build_wce (gimple_seq);
816gimple gimple_build_resx (int);
817gimple gimple_build_eh_dispatch (int);
818gimple gimple_build_switch_nlabels (unsigned, tree, tree);
819gimple gimple_build_switch (unsigned, tree, tree, ...);
820gimple gimple_build_switch_vec (tree, tree, VEC(tree,heap) *);
821gimple gimple_build_omp_parallel (gimple_seq, tree, tree, tree);
822gimple gimple_build_omp_task (gimple_seq, tree, tree, tree, tree, tree, tree);
823gimple gimple_build_omp_for (gimple_seq, tree, size_t, gimple_seq);
824gimple gimple_build_omp_critical (gimple_seq, tree);
825gimple gimple_build_omp_section (gimple_seq);
826gimple gimple_build_omp_continue (tree, tree);
827gimple gimple_build_omp_master (gimple_seq);
828gimple gimple_build_omp_return (bool);
829gimple gimple_build_omp_ordered (gimple_seq);
830gimple gimple_build_omp_sections (gimple_seq, tree);
831gimple gimple_build_omp_sections_switch (void);
832gimple gimple_build_omp_single (gimple_seq, tree);
833gimple gimple_build_cdt (tree, tree);
834gimple gimple_build_omp_atomic_load (tree, tree);
835gimple gimple_build_omp_atomic_store (tree);
836gimple gimple_build_predict (enum br_predictor, enum prediction);
837enum gimple_statement_structure_enum gss_for_assign (enum tree_code);
838void sort_case_labels (VEC(tree,heap) *);
839void gimple_set_body (tree, gimple_seq);
840gimple_seq gimple_body (tree);
841bool gimple_has_body_p (tree);
842gimple_seq gimple_seq_alloc (void);
843void gimple_seq_free (gimple_seq);
844void gimple_seq_add_seq (gimple_seq *, gimple_seq);
845gimple_seq gimple_seq_copy (gimple_seq);
846int gimple_call_flags (const_gimple);
847bool gimple_assign_copy_p (gimple);
848bool gimple_assign_ssa_name_copy_p (gimple);
849bool gimple_assign_single_p (gimple);
850bool gimple_assign_unary_nop_p (gimple);
851void gimple_set_bb (gimple, struct basic_block_def *);
852void gimple_assign_set_rhs_from_tree (gimple_stmt_iterator *, tree);
853void gimple_assign_set_rhs_with_ops (gimple_stmt_iterator *, enum tree_code,
854				     tree, tree);
855tree gimple_get_lhs (const_gimple);
856void gimple_set_lhs (gimple, tree);
857void gimple_replace_lhs (gimple, tree);
858gimple gimple_copy (gimple);
859bool is_gimple_operand (const_tree);
860void gimple_set_modified (gimple, bool);
861void gimple_cond_get_ops_from_tree (tree, enum tree_code *, tree *, tree *);
862gimple gimple_build_cond_from_tree (tree, tree, tree);
863void gimple_cond_set_condition_from_tree (gimple, tree);
864bool gimple_has_side_effects (const_gimple);
865bool gimple_rhs_has_side_effects (const_gimple);
866bool gimple_could_trap_p (gimple);
867bool gimple_assign_rhs_could_trap_p (gimple);
868void gimple_regimplify_operands (gimple, gimple_stmt_iterator *);
869bool empty_body_p (gimple_seq);
870unsigned get_gimple_rhs_num_ops (enum tree_code);
871#define gimple_alloc(c, n) gimple_alloc_stat (c, n MEM_STAT_INFO)
872gimple gimple_alloc_stat (enum gimple_code, unsigned MEM_STAT_DECL);
873const char *gimple_decl_printable_name (tree, int);
874tree gimple_fold_obj_type_ref (tree, tree);
875
876/* Returns true iff T is a valid GIMPLE statement.  */
877extern bool is_gimple_stmt (tree);
878
879/* Returns true iff TYPE is a valid type for a scalar register variable.  */
880extern bool is_gimple_reg_type (tree);
881/* Returns true iff T is a scalar register variable.  */
882extern bool is_gimple_reg (tree);
883/* Returns true iff T is any sort of variable.  */
884extern bool is_gimple_variable (tree);
885/* Returns true iff T is any sort of symbol.  */
886extern bool is_gimple_id (tree);
887/* Returns true iff T is a variable or an INDIRECT_REF (of a variable).  */
888extern bool is_gimple_min_lval (tree);
889/* Returns true iff T is something whose address can be taken.  */
890extern bool is_gimple_addressable (tree);
891/* Returns true iff T is any valid GIMPLE lvalue.  */
892extern bool is_gimple_lvalue (tree);
893
894/* Returns true iff T is a GIMPLE address.  */
895bool is_gimple_address (const_tree);
896/* Returns true iff T is a GIMPLE invariant address.  */
897bool is_gimple_invariant_address (const_tree);
898/* Returns true iff T is a GIMPLE invariant address at interprocedural
899   level.  */
900bool is_gimple_ip_invariant_address (const_tree);
901/* Returns true iff T is a valid GIMPLE constant.  */
902bool is_gimple_constant (const_tree);
903/* Returns true iff T is a GIMPLE restricted function invariant.  */
904extern bool is_gimple_min_invariant (const_tree);
905/* Returns true iff T is a GIMPLE restricted interprecodural invariant.  */
906extern bool is_gimple_ip_invariant (const_tree);
907/* Returns true iff T is a GIMPLE rvalue.  */
908extern bool is_gimple_val (tree);
909/* Returns true iff T is a GIMPLE asm statement input.  */
910extern bool is_gimple_asm_val (tree);
911/* Returns true iff T is a valid rhs for a MODIFY_EXPR where the LHS is a
912   GIMPLE temporary, a renamed user variable, or something else,
913   respectively.  */
914extern bool is_gimple_reg_rhs (tree);
915extern bool is_gimple_mem_rhs (tree);
916
917/* Returns true iff T is a valid if-statement condition.  */
918extern bool is_gimple_condexpr (tree);
919
920/* Returns true iff T is a type conversion.  */
921extern bool is_gimple_cast (tree);
922/* Returns true iff T is a variable that does not need to live in memory.  */
923extern bool is_gimple_non_addressable (tree t);
924
925/* Returns true iff T is a valid call address expression.  */
926extern bool is_gimple_call_addr (tree);
927/* If T makes a function call, returns the CALL_EXPR operand.  */
928extern tree get_call_expr_in (tree t);
929
930extern void recalculate_side_effects (tree);
931extern bool compare_field_offset (tree, tree);
932extern tree gimple_register_type (tree);
933extern void print_gimple_types_stats (void);
934extern void free_gimple_type_tables (void);
935extern tree gimple_unsigned_type (tree);
936extern tree gimple_signed_type (tree);
937extern alias_set_type gimple_get_alias_set (tree);
938extern void count_uses_and_derefs (tree, gimple, unsigned *, unsigned *,
939				   unsigned *);
940extern bool walk_stmt_load_store_addr_ops (gimple, void *,
941					   bool (*)(gimple, tree, void *),
942					   bool (*)(gimple, tree, void *),
943					   bool (*)(gimple, tree, void *));
944extern bool walk_stmt_load_store_ops (gimple, void *,
945				      bool (*)(gimple, tree, void *),
946				      bool (*)(gimple, tree, void *));
947extern bool gimple_ior_addresses_taken (bitmap, gimple);
948
949/* In gimplify.c  */
950extern tree create_tmp_var_raw (tree, const char *);
951extern tree create_tmp_var_name (const char *);
952extern tree create_tmp_var (tree, const char *);
953extern tree get_initialized_tmp_var (tree, gimple_seq *, gimple_seq *);
954extern tree get_formal_tmp_var (tree, gimple_seq *);
955extern void declare_vars (tree, gimple, bool);
956extern void annotate_all_with_location (gimple_seq, location_t);
957
958/* Validation of GIMPLE expressions.  Note that these predicates only check
959   the basic form of the expression, they don't recurse to make sure that
960   underlying nodes are also of the right form.  */
961typedef bool (*gimple_predicate)(tree);
962
963
964/* FIXME we should deduce this from the predicate.  */
965enum fallback {
966  fb_none = 0,		/* Do not generate a temporary.  */
967
968  fb_rvalue = 1,	/* Generate an rvalue to hold the result of a
969			   gimplified expression.  */
970
971  fb_lvalue = 2,	/* Generate an lvalue to hold the result of a
972			   gimplified expression.  */
973
974  fb_mayfail = 4,	/* Gimplification may fail.  Error issued
975			   afterwards.  */
976  fb_either= fb_rvalue | fb_lvalue
977};
978
979typedef int fallback_t;
980
981enum gimplify_status {
982  GS_ERROR	= -2,	/* Something Bad Seen.  */
983  GS_UNHANDLED	= -1,	/* A langhook result for "I dunno".  */
984  GS_OK		= 0,	/* We did something, maybe more to do.  */
985  GS_ALL_DONE	= 1	/* The expression is fully gimplified.  */
986};
987
988struct gimplify_ctx
989{
990  struct gimplify_ctx *prev_context;
991
992  VEC(gimple,heap) *bind_expr_stack;
993  tree temps;
994  gimple_seq conditional_cleanups;
995  tree exit_label;
996  tree return_temp;
997
998  VEC(tree,heap) *case_labels;
999  /* The formal temporary table.  Should this be persistent?  */
1000  htab_t temp_htab;
1001
1002  int conditions;
1003  bool save_stack;
1004  bool into_ssa;
1005  bool allow_rhs_cond_expr;
1006};
1007
1008extern enum gimplify_status gimplify_expr (tree *, gimple_seq *, gimple_seq *,
1009					   bool (*) (tree), fallback_t);
1010extern void gimplify_type_sizes (tree, gimple_seq *);
1011extern void gimplify_one_sizepos (tree *, gimple_seq *);
1012extern bool gimplify_stmt (tree *, gimple_seq *);
1013extern gimple gimplify_body (tree *, tree, bool);
1014extern void push_gimplify_context (struct gimplify_ctx *);
1015extern void pop_gimplify_context (gimple);
1016extern void gimplify_and_add (tree, gimple_seq *);
1017
1018/* Miscellaneous helpers.  */
1019extern void gimple_add_tmp_var (tree);
1020extern gimple gimple_current_bind_expr (void);
1021extern VEC(gimple, heap) *gimple_bind_expr_stack (void);
1022extern tree voidify_wrapper_expr (tree, tree);
1023extern tree build_and_jump (tree *);
1024extern tree alloc_stmt_list (void);
1025extern void free_stmt_list (tree);
1026extern tree force_labels_r (tree *, int *, void *);
1027extern enum gimplify_status gimplify_va_arg_expr (tree *, gimple_seq *,
1028						  gimple_seq *);
1029struct gimplify_omp_ctx;
1030extern void omp_firstprivatize_variable (struct gimplify_omp_ctx *, tree);
1031extern tree gimple_boolify (tree);
1032extern gimple_predicate rhs_predicate_for (tree);
1033extern tree canonicalize_cond_expr_cond (tree);
1034
1035/* In omp-low.c.  */
1036extern tree omp_reduction_init (tree, tree);
1037
1038/* In tree-nested.c.  */
1039extern void lower_nested_functions (tree);
1040extern void insert_field_into_struct (tree, tree);
1041
1042/* In gimplify.c.  */
1043extern void gimplify_function_tree (tree);
1044
1045/* In cfgexpand.c.  */
1046extern tree gimple_assign_rhs_to_tree (gimple);
1047
1048/* In builtins.c  */
1049extern bool validate_gimple_arglist (const_gimple, ...);
1050
1051/* In tree-ssa.c  */
1052extern bool tree_ssa_useless_type_conversion (tree);
1053extern tree tree_ssa_strip_useless_type_conversions (tree);
1054extern bool useless_type_conversion_p (tree, tree);
1055extern bool types_compatible_p (tree, tree);
1056
1057/* Return the code for GIMPLE statement G.  */
1058
1059static inline enum gimple_code
1060gimple_code (const_gimple g)
1061{
1062  return g->gsbase.code;
1063}
1064
1065
1066/* Return the GSS code used by a GIMPLE code.  */
1067
1068static inline enum gimple_statement_structure_enum
1069gss_for_code (enum gimple_code code)
1070{
1071#ifdef ENABLE_CHECKING
1072  gcc_assert ((unsigned int)code < LAST_AND_UNUSED_GIMPLE_CODE);
1073#endif
1074  return gss_for_code_[code];
1075}
1076
1077
1078/* Return which GSS code is used by GS.  */
1079
1080static inline enum gimple_statement_structure_enum
1081gimple_statement_structure (gimple gs)
1082{
1083  return gss_for_code (gimple_code (gs));
1084}
1085
1086
1087/* Return true if statement G has sub-statements.  This is only true for
1088   High GIMPLE statements.  */
1089
1090static inline bool
1091gimple_has_substatements (gimple g)
1092{
1093  switch (gimple_code (g))
1094    {
1095    case GIMPLE_BIND:
1096    case GIMPLE_CATCH:
1097    case GIMPLE_EH_FILTER:
1098    case GIMPLE_TRY:
1099    case GIMPLE_OMP_FOR:
1100    case GIMPLE_OMP_MASTER:
1101    case GIMPLE_OMP_ORDERED:
1102    case GIMPLE_OMP_SECTION:
1103    case GIMPLE_OMP_PARALLEL:
1104    case GIMPLE_OMP_TASK:
1105    case GIMPLE_OMP_SECTIONS:
1106    case GIMPLE_OMP_SINGLE:
1107    case GIMPLE_OMP_CRITICAL:
1108    case GIMPLE_WITH_CLEANUP_EXPR:
1109      return true;
1110
1111    default:
1112      return false;
1113    }
1114}
1115
1116
1117/* Return the basic block holding statement G.  */
1118
1119static inline struct basic_block_def *
1120gimple_bb (const_gimple g)
1121{
1122  return g->gsbase.bb;
1123}
1124
1125
1126/* Return the lexical scope block holding statement G.  */
1127
1128static inline tree
1129gimple_block (const_gimple g)
1130{
1131  return g->gsbase.block;
1132}
1133
1134
1135/* Set BLOCK to be the lexical scope block holding statement G.  */
1136
1137static inline void
1138gimple_set_block (gimple g, tree block)
1139{
1140  g->gsbase.block = block;
1141}
1142
1143
1144/* Return location information for statement G.  */
1145
1146static inline location_t
1147gimple_location (const_gimple g)
1148{
1149  return g->gsbase.location;
1150}
1151
1152/* Return pointer to location information for statement G.  */
1153
1154static inline const location_t *
1155gimple_location_ptr (const_gimple g)
1156{
1157  return &g->gsbase.location;
1158}
1159
1160
1161/* Set location information for statement G.  */
1162
1163static inline void
1164gimple_set_location (gimple g, location_t location)
1165{
1166  g->gsbase.location = location;
1167}
1168
1169
1170/* Return true if G contains location information.  */
1171
1172static inline bool
1173gimple_has_location (const_gimple g)
1174{
1175  return gimple_location (g) != UNKNOWN_LOCATION;
1176}
1177
1178
1179/* Return the file name of the location of STMT.  */
1180
1181static inline const char *
1182gimple_filename (const_gimple stmt)
1183{
1184  return LOCATION_FILE (gimple_location (stmt));
1185}
1186
1187
1188/* Return the line number of the location of STMT.  */
1189
1190static inline int
1191gimple_lineno (const_gimple stmt)
1192{
1193  return LOCATION_LINE (gimple_location (stmt));
1194}
1195
1196
1197/* Determine whether SEQ is a singleton. */
1198
1199static inline bool
1200gimple_seq_singleton_p (gimple_seq seq)
1201{
1202  return ((gimple_seq_first (seq) != NULL)
1203	  && (gimple_seq_first (seq) == gimple_seq_last (seq)));
1204}
1205
1206/* Return true if no warnings should be emitted for statement STMT.  */
1207
1208static inline bool
1209gimple_no_warning_p (const_gimple stmt)
1210{
1211  return stmt->gsbase.no_warning;
1212}
1213
1214/* Set the no_warning flag of STMT to NO_WARNING.  */
1215
1216static inline void
1217gimple_set_no_warning (gimple stmt, bool no_warning)
1218{
1219  stmt->gsbase.no_warning = (unsigned) no_warning;
1220}
1221
1222/* Set the visited status on statement STMT to VISITED_P.  */
1223
1224static inline void
1225gimple_set_visited (gimple stmt, bool visited_p)
1226{
1227  stmt->gsbase.visited = (unsigned) visited_p;
1228}
1229
1230
1231/* Return the visited status for statement STMT.  */
1232
1233static inline bool
1234gimple_visited_p (gimple stmt)
1235{
1236  return stmt->gsbase.visited;
1237}
1238
1239
1240/* Set pass local flag PLF on statement STMT to VAL_P.  */
1241
1242static inline void
1243gimple_set_plf (gimple stmt, enum plf_mask plf, bool val_p)
1244{
1245  if (val_p)
1246    stmt->gsbase.plf |= (unsigned int) plf;
1247  else
1248    stmt->gsbase.plf &= ~((unsigned int) plf);
1249}
1250
1251
1252/* Return the value of pass local flag PLF on statement STMT.  */
1253
1254static inline unsigned int
1255gimple_plf (gimple stmt, enum plf_mask plf)
1256{
1257  return stmt->gsbase.plf & ((unsigned int) plf);
1258}
1259
1260
1261/* Set the UID of statement.  */
1262
1263static inline void
1264gimple_set_uid (gimple g, unsigned uid)
1265{
1266  g->gsbase.uid = uid;
1267}
1268
1269
1270/* Return the UID of statement.  */
1271
1272static inline unsigned
1273gimple_uid (const_gimple g)
1274{
1275  return g->gsbase.uid;
1276}
1277
1278
1279/* Return true if GIMPLE statement G has register or memory operands.  */
1280
1281static inline bool
1282gimple_has_ops (const_gimple g)
1283{
1284  return gimple_code (g) >= GIMPLE_COND && gimple_code (g) <= GIMPLE_RETURN;
1285}
1286
1287
1288/* Return true if GIMPLE statement G has memory operands.  */
1289
1290static inline bool
1291gimple_has_mem_ops (const_gimple g)
1292{
1293  return gimple_code (g) >= GIMPLE_ASSIGN && gimple_code (g) <= GIMPLE_RETURN;
1294}
1295
1296
1297/* Return the set of DEF operands for statement G.  */
1298
1299static inline struct def_optype_d *
1300gimple_def_ops (const_gimple g)
1301{
1302  if (!gimple_has_ops (g))
1303    return NULL;
1304  return g->gsops.opbase.def_ops;
1305}
1306
1307
1308/* Set DEF to be the set of DEF operands for statement G.  */
1309
1310static inline void
1311gimple_set_def_ops (gimple g, struct def_optype_d *def)
1312{
1313  gcc_assert (gimple_has_ops (g));
1314  g->gsops.opbase.def_ops = def;
1315}
1316
1317
1318/* Return the set of USE operands for statement G.  */
1319
1320static inline struct use_optype_d *
1321gimple_use_ops (const_gimple g)
1322{
1323  if (!gimple_has_ops (g))
1324    return NULL;
1325  return g->gsops.opbase.use_ops;
1326}
1327
1328
1329/* Set USE to be the set of USE operands for statement G.  */
1330
1331static inline void
1332gimple_set_use_ops (gimple g, struct use_optype_d *use)
1333{
1334  gcc_assert (gimple_has_ops (g));
1335  g->gsops.opbase.use_ops = use;
1336}
1337
1338
1339/* Return the set of VUSE operand for statement G.  */
1340
1341static inline use_operand_p
1342gimple_vuse_op (const_gimple g)
1343{
1344  struct use_optype_d *ops;
1345  if (!gimple_has_mem_ops (g))
1346    return NULL_USE_OPERAND_P;
1347  ops = g->gsops.opbase.use_ops;
1348  if (ops
1349      && USE_OP_PTR (ops)->use == &g->gsmembase.vuse)
1350    return USE_OP_PTR (ops);
1351  return NULL_USE_OPERAND_P;
1352}
1353
1354/* Return the set of VDEF operand for statement G.  */
1355
1356static inline def_operand_p
1357gimple_vdef_op (const_gimple g)
1358{
1359  struct def_optype_d *ops;
1360  if (!gimple_has_mem_ops (g))
1361    return NULL_DEF_OPERAND_P;
1362  ops = g->gsops.opbase.def_ops;
1363  if (ops
1364      && DEF_OP_PTR (ops) == &g->gsmembase.vdef)
1365    return DEF_OP_PTR (ops);
1366  return NULL_DEF_OPERAND_P;
1367}
1368
1369
1370/* Return the single VUSE operand of the statement G.  */
1371
1372static inline tree
1373gimple_vuse (const_gimple g)
1374{
1375  if (!gimple_has_mem_ops (g))
1376    return NULL_TREE;
1377  return g->gsmembase.vuse;
1378}
1379
1380/* Return the single VDEF operand of the statement G.  */
1381
1382static inline tree
1383gimple_vdef (const_gimple g)
1384{
1385  if (!gimple_has_mem_ops (g))
1386    return NULL_TREE;
1387  return g->gsmembase.vdef;
1388}
1389
1390/* Return the single VUSE operand of the statement G.  */
1391
1392static inline tree *
1393gimple_vuse_ptr (gimple g)
1394{
1395  if (!gimple_has_mem_ops (g))
1396    return NULL;
1397  return &g->gsmembase.vuse;
1398}
1399
1400/* Return the single VDEF operand of the statement G.  */
1401
1402static inline tree *
1403gimple_vdef_ptr (gimple g)
1404{
1405  if (!gimple_has_mem_ops (g))
1406    return NULL;
1407  return &g->gsmembase.vdef;
1408}
1409
1410/* Set the single VUSE operand of the statement G.  */
1411
1412static inline void
1413gimple_set_vuse (gimple g, tree vuse)
1414{
1415  gcc_assert (gimple_has_mem_ops (g));
1416  g->gsmembase.vuse = vuse;
1417}
1418
1419/* Set the single VDEF operand of the statement G.  */
1420
1421static inline void
1422gimple_set_vdef (gimple g, tree vdef)
1423{
1424  gcc_assert (gimple_has_mem_ops (g));
1425  g->gsmembase.vdef = vdef;
1426}
1427
1428
1429/* Return true if statement G has operands and the modified field has
1430   been set.  */
1431
1432static inline bool
1433gimple_modified_p (const_gimple g)
1434{
1435  return (gimple_has_ops (g)) ? (bool) g->gsbase.modified : false;
1436}
1437
1438
1439/* Return the tree code for the expression computed by STMT.  This is
1440   only valid for GIMPLE_COND, GIMPLE_CALL and GIMPLE_ASSIGN.  For
1441   GIMPLE_CALL, return CALL_EXPR as the expression code for
1442   consistency.  This is useful when the caller needs to deal with the
1443   three kinds of computation that GIMPLE supports.  */
1444
1445static inline enum tree_code
1446gimple_expr_code (const_gimple stmt)
1447{
1448  enum gimple_code code = gimple_code (stmt);
1449  if (code == GIMPLE_ASSIGN || code == GIMPLE_COND)
1450    return (enum tree_code) stmt->gsbase.subcode;
1451  else if (code == GIMPLE_CALL)
1452    return CALL_EXPR;
1453  else
1454    gcc_unreachable ();
1455}
1456
1457
1458/* Mark statement S as modified, and update it.  */
1459
1460static inline void
1461update_stmt (gimple s)
1462{
1463  if (gimple_has_ops (s))
1464    {
1465      gimple_set_modified (s, true);
1466      update_stmt_operands (s);
1467    }
1468}
1469
1470/* Update statement S if it has been optimized.  */
1471
1472static inline void
1473update_stmt_if_modified (gimple s)
1474{
1475  if (gimple_modified_p (s))
1476    update_stmt_operands (s);
1477}
1478
1479/* Return true if statement STMT contains volatile operands.  */
1480
1481static inline bool
1482gimple_has_volatile_ops (const_gimple stmt)
1483{
1484  if (gimple_has_mem_ops (stmt))
1485    return stmt->gsbase.has_volatile_ops;
1486  else
1487    return false;
1488}
1489
1490
1491/* Set the HAS_VOLATILE_OPS flag to VOLATILEP.  */
1492
1493static inline void
1494gimple_set_has_volatile_ops (gimple stmt, bool volatilep)
1495{
1496  if (gimple_has_mem_ops (stmt))
1497    stmt->gsbase.has_volatile_ops = (unsigned) volatilep;
1498}
1499
1500
1501/* Return true if statement STMT may access memory.  */
1502
1503static inline bool
1504gimple_references_memory_p (gimple stmt)
1505{
1506  return gimple_has_mem_ops (stmt) && gimple_vuse (stmt);
1507}
1508
1509
1510/* Return the subcode for OMP statement S.  */
1511
1512static inline unsigned
1513gimple_omp_subcode (const_gimple s)
1514{
1515  gcc_assert (gimple_code (s) >= GIMPLE_OMP_ATOMIC_LOAD
1516	      && gimple_code (s) <= GIMPLE_OMP_SINGLE);
1517  return s->gsbase.subcode;
1518}
1519
1520/* Set the subcode for OMP statement S to SUBCODE.  */
1521
1522static inline void
1523gimple_omp_set_subcode (gimple s, unsigned int subcode)
1524{
1525  /* We only have 16 bits for the subcode.  Assert that we are not
1526     overflowing it.  */
1527  gcc_assert (subcode < (1 << 16));
1528  s->gsbase.subcode = subcode;
1529}
1530
1531/* Set the nowait flag on OMP_RETURN statement S.  */
1532
1533static inline void
1534gimple_omp_return_set_nowait (gimple s)
1535{
1536  GIMPLE_CHECK (s, GIMPLE_OMP_RETURN);
1537  s->gsbase.subcode |= GF_OMP_RETURN_NOWAIT;
1538}
1539
1540
1541/* Return true if OMP return statement G has the GF_OMP_RETURN_NOWAIT
1542   flag set.  */
1543
1544static inline bool
1545gimple_omp_return_nowait_p (const_gimple g)
1546{
1547  GIMPLE_CHECK (g, GIMPLE_OMP_RETURN);
1548  return (gimple_omp_subcode (g) & GF_OMP_RETURN_NOWAIT) != 0;
1549}
1550
1551
1552/* Return true if OMP section statement G has the GF_OMP_SECTION_LAST
1553   flag set.  */
1554
1555static inline bool
1556gimple_omp_section_last_p (const_gimple g)
1557{
1558  GIMPLE_CHECK (g, GIMPLE_OMP_SECTION);
1559  return (gimple_omp_subcode (g) & GF_OMP_SECTION_LAST) != 0;
1560}
1561
1562
1563/* Set the GF_OMP_SECTION_LAST flag on G.  */
1564
1565static inline void
1566gimple_omp_section_set_last (gimple g)
1567{
1568  GIMPLE_CHECK (g, GIMPLE_OMP_SECTION);
1569  g->gsbase.subcode |= GF_OMP_SECTION_LAST;
1570}
1571
1572
1573/* Return true if OMP parallel statement G has the
1574   GF_OMP_PARALLEL_COMBINED flag set.  */
1575
1576static inline bool
1577gimple_omp_parallel_combined_p (const_gimple g)
1578{
1579  GIMPLE_CHECK (g, GIMPLE_OMP_PARALLEL);
1580  return (gimple_omp_subcode (g) & GF_OMP_PARALLEL_COMBINED) != 0;
1581}
1582
1583
1584/* Set the GF_OMP_PARALLEL_COMBINED field in G depending on the boolean
1585   value of COMBINED_P.  */
1586
1587static inline void
1588gimple_omp_parallel_set_combined_p (gimple g, bool combined_p)
1589{
1590  GIMPLE_CHECK (g, GIMPLE_OMP_PARALLEL);
1591  if (combined_p)
1592    g->gsbase.subcode |= GF_OMP_PARALLEL_COMBINED;
1593  else
1594    g->gsbase.subcode &= ~GF_OMP_PARALLEL_COMBINED;
1595}
1596
1597
1598/* Return the number of operands for statement GS.  */
1599
1600static inline unsigned
1601gimple_num_ops (const_gimple gs)
1602{
1603  return gs->gsbase.num_ops;
1604}
1605
1606
1607/* Set the number of operands for statement GS.  */
1608
1609static inline void
1610gimple_set_num_ops (gimple gs, unsigned num_ops)
1611{
1612  gs->gsbase.num_ops = num_ops;
1613}
1614
1615
1616/* Return the array of operands for statement GS.  */
1617
1618static inline tree *
1619gimple_ops (gimple gs)
1620{
1621  size_t off;
1622
1623  /* All the tuples have their operand vector at the very bottom
1624     of the structure.  Note that those structures that do not
1625     have an operand vector have a zero offset.  */
1626  off = gimple_ops_offset_[gimple_statement_structure (gs)];
1627  gcc_assert (off != 0);
1628
1629  return (tree *) ((char *) gs + off);
1630}
1631
1632
1633/* Return operand I for statement GS.  */
1634
1635static inline tree
1636gimple_op (const_gimple gs, unsigned i)
1637{
1638  if (gimple_has_ops (gs))
1639    {
1640#ifdef ENABLE_CHECKING
1641      gcc_assert (i < gimple_num_ops (gs));
1642#endif
1643      return gimple_ops (CONST_CAST_GIMPLE (gs))[i];
1644    }
1645  else
1646    return NULL_TREE;
1647}
1648
1649/* Return a pointer to operand I for statement GS.  */
1650
1651static inline tree *
1652gimple_op_ptr (const_gimple gs, unsigned i)
1653{
1654  if (gimple_has_ops (gs))
1655    {
1656#ifdef ENABLE_CHECKING
1657      gcc_assert (i < gimple_num_ops (gs));
1658#endif
1659      return gimple_ops (CONST_CAST_GIMPLE (gs)) + i;
1660    }
1661  else
1662    return NULL;
1663}
1664
1665/* Set operand I of statement GS to OP.  */
1666
1667static inline void
1668gimple_set_op (gimple gs, unsigned i, tree op)
1669{
1670  gcc_assert (gimple_has_ops (gs) && i < gimple_num_ops (gs));
1671
1672  /* Note.  It may be tempting to assert that OP matches
1673     is_gimple_operand, but that would be wrong.  Different tuples
1674     accept slightly different sets of tree operands.  Each caller
1675     should perform its own validation.  */
1676  gimple_ops (gs)[i] = op;
1677}
1678
1679/* Return true if GS is a GIMPLE_ASSIGN.  */
1680
1681static inline bool
1682is_gimple_assign (const_gimple gs)
1683{
1684  return gimple_code (gs) == GIMPLE_ASSIGN;
1685}
1686
1687/* Determine if expression CODE is one of the valid expressions that can
1688   be used on the RHS of GIMPLE assignments.  */
1689
1690static inline enum gimple_rhs_class
1691get_gimple_rhs_class (enum tree_code code)
1692{
1693  return (enum gimple_rhs_class) gimple_rhs_class_table[(int) code];
1694}
1695
1696/* Return the LHS of assignment statement GS.  */
1697
1698static inline tree
1699gimple_assign_lhs (const_gimple gs)
1700{
1701  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1702  return gimple_op (gs, 0);
1703}
1704
1705
1706/* Return a pointer to the LHS of assignment statement GS.  */
1707
1708static inline tree *
1709gimple_assign_lhs_ptr (const_gimple gs)
1710{
1711  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1712  return gimple_op_ptr (gs, 0);
1713}
1714
1715
1716/* Set LHS to be the LHS operand of assignment statement GS.  */
1717
1718static inline void
1719gimple_assign_set_lhs (gimple gs, tree lhs)
1720{
1721  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1722  gimple_set_op (gs, 0, lhs);
1723
1724  if (lhs && TREE_CODE (lhs) == SSA_NAME)
1725    SSA_NAME_DEF_STMT (lhs) = gs;
1726}
1727
1728
1729/* Return the first operand on the RHS of assignment statement GS.  */
1730
1731static inline tree
1732gimple_assign_rhs1 (const_gimple gs)
1733{
1734  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1735  return gimple_op (gs, 1);
1736}
1737
1738
1739/* Return a pointer to the first operand on the RHS of assignment
1740   statement GS.  */
1741
1742static inline tree *
1743gimple_assign_rhs1_ptr (const_gimple gs)
1744{
1745  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1746  return gimple_op_ptr (gs, 1);
1747}
1748
1749/* Set RHS to be the first operand on the RHS of assignment statement GS.  */
1750
1751static inline void
1752gimple_assign_set_rhs1 (gimple gs, tree rhs)
1753{
1754  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1755
1756  gimple_set_op (gs, 1, rhs);
1757}
1758
1759
1760/* Return the second operand on the RHS of assignment statement GS.
1761   If GS does not have two operands, NULL is returned instead.  */
1762
1763static inline tree
1764gimple_assign_rhs2 (const_gimple gs)
1765{
1766  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1767
1768  if (gimple_num_ops (gs) >= 3)
1769    return gimple_op (gs, 2);
1770  else
1771    return NULL_TREE;
1772}
1773
1774
1775/* Return a pointer to the second operand on the RHS of assignment
1776   statement GS.  */
1777
1778static inline tree *
1779gimple_assign_rhs2_ptr (const_gimple gs)
1780{
1781  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1782  return gimple_op_ptr (gs, 2);
1783}
1784
1785
1786/* Set RHS to be the second operand on the RHS of assignment statement GS.  */
1787
1788static inline void
1789gimple_assign_set_rhs2 (gimple gs, tree rhs)
1790{
1791  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1792
1793  gimple_set_op (gs, 2, rhs);
1794}
1795
1796/* Returns true if GS is a nontemporal move.  */
1797
1798static inline bool
1799gimple_assign_nontemporal_move_p (const_gimple gs)
1800{
1801  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1802  return gs->gsbase.nontemporal_move;
1803}
1804
1805/* Sets nontemporal move flag of GS to NONTEMPORAL.  */
1806
1807static inline void
1808gimple_assign_set_nontemporal_move (gimple gs, bool nontemporal)
1809{
1810  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1811  gs->gsbase.nontemporal_move = nontemporal;
1812}
1813
1814
1815/* Return the code of the expression computed on the rhs of assignment
1816   statement GS.  In case that the RHS is a single object, returns the
1817   tree code of the object.  */
1818
1819static inline enum tree_code
1820gimple_assign_rhs_code (const_gimple gs)
1821{
1822  enum tree_code code;
1823  GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1824
1825  code = gimple_expr_code (gs);
1826  if (get_gimple_rhs_class (code) == GIMPLE_SINGLE_RHS)
1827    code = TREE_CODE (gimple_assign_rhs1 (gs));
1828
1829  return code;
1830}
1831
1832
1833/* Set CODE to be the code for the expression computed on the RHS of
1834   assignment S.  */
1835
1836static inline void
1837gimple_assign_set_rhs_code (gimple s, enum tree_code code)
1838{
1839  GIMPLE_CHECK (s, GIMPLE_ASSIGN);
1840  s->gsbase.subcode = code;
1841}
1842
1843
1844/* Return the gimple rhs class of the code of the expression computed on
1845   the rhs of assignment statement GS.
1846   This will never return GIMPLE_INVALID_RHS.  */
1847
1848static inline enum gimple_rhs_class
1849gimple_assign_rhs_class (const_gimple gs)
1850{
1851  return get_gimple_rhs_class (gimple_assign_rhs_code (gs));
1852}
1853
1854
1855/* Return true if S is a type-cast assignment.  */
1856
1857static inline bool
1858gimple_assign_cast_p (gimple s)
1859{
1860  if (is_gimple_assign (s))
1861    {
1862      enum tree_code sc = gimple_assign_rhs_code (s);
1863      return CONVERT_EXPR_CODE_P (sc)
1864	     || sc == VIEW_CONVERT_EXPR
1865	     || sc == FIX_TRUNC_EXPR;
1866    }
1867
1868  return false;
1869}
1870
1871
1872/* Return true if GS is a GIMPLE_CALL.  */
1873
1874static inline bool
1875is_gimple_call (const_gimple gs)
1876{
1877  return gimple_code (gs) == GIMPLE_CALL;
1878}
1879
1880/* Return the LHS of call statement GS.  */
1881
1882static inline tree
1883gimple_call_lhs (const_gimple gs)
1884{
1885  GIMPLE_CHECK (gs, GIMPLE_CALL);
1886  return gimple_op (gs, 0);
1887}
1888
1889
1890/* Return a pointer to the LHS of call statement GS.  */
1891
1892static inline tree *
1893gimple_call_lhs_ptr (const_gimple gs)
1894{
1895  GIMPLE_CHECK (gs, GIMPLE_CALL);
1896  return gimple_op_ptr (gs, 0);
1897}
1898
1899
1900/* Set LHS to be the LHS operand of call statement GS.  */
1901
1902static inline void
1903gimple_call_set_lhs (gimple gs, tree lhs)
1904{
1905  GIMPLE_CHECK (gs, GIMPLE_CALL);
1906  gimple_set_op (gs, 0, lhs);
1907  if (lhs && TREE_CODE (lhs) == SSA_NAME)
1908    SSA_NAME_DEF_STMT (lhs) = gs;
1909}
1910
1911
1912/* Return the tree node representing the function called by call
1913   statement GS.  */
1914
1915static inline tree
1916gimple_call_fn (const_gimple gs)
1917{
1918  GIMPLE_CHECK (gs, GIMPLE_CALL);
1919  return gimple_op (gs, 1);
1920}
1921
1922
1923/* Return a pointer to the tree node representing the function called by call
1924   statement GS.  */
1925
1926static inline tree *
1927gimple_call_fn_ptr (const_gimple gs)
1928{
1929  GIMPLE_CHECK (gs, GIMPLE_CALL);
1930  return gimple_op_ptr (gs, 1);
1931}
1932
1933
1934/* Set FN to be the function called by call statement GS.  */
1935
1936static inline void
1937gimple_call_set_fn (gimple gs, tree fn)
1938{
1939  GIMPLE_CHECK (gs, GIMPLE_CALL);
1940  gimple_set_op (gs, 1, fn);
1941}
1942
1943
1944/* Set FNDECL to be the function called by call statement GS.  */
1945
1946static inline void
1947gimple_call_set_fndecl (gimple gs, tree decl)
1948{
1949  GIMPLE_CHECK (gs, GIMPLE_CALL);
1950  gimple_set_op (gs, 1, build_fold_addr_expr_loc (gimple_location (gs), decl));
1951}
1952
1953
1954/* If a given GIMPLE_CALL's callee is a FUNCTION_DECL, return it.
1955   Otherwise return NULL.  This function is analogous to
1956   get_callee_fndecl in tree land.  */
1957
1958static inline tree
1959gimple_call_fndecl (const_gimple gs)
1960{
1961  tree addr = gimple_call_fn (gs);
1962  if (TREE_CODE (addr) == ADDR_EXPR)
1963    return TREE_OPERAND (addr, 0);
1964  return NULL_TREE;
1965}
1966
1967
1968/* Return the type returned by call statement GS.  */
1969
1970static inline tree
1971gimple_call_return_type (const_gimple gs)
1972{
1973  tree fn = gimple_call_fn (gs);
1974  tree type = TREE_TYPE (fn);
1975
1976  /* See through the pointer.  */
1977  type = TREE_TYPE (type);
1978
1979  /* The type returned by a FUNCTION_DECL is the type of its
1980     function type.  */
1981  return TREE_TYPE (type);
1982}
1983
1984
1985/* Return the static chain for call statement GS.  */
1986
1987static inline tree
1988gimple_call_chain (const_gimple gs)
1989{
1990  GIMPLE_CHECK (gs, GIMPLE_CALL);
1991  return gimple_op (gs, 2);
1992}
1993
1994
1995/* Return a pointer to the static chain for call statement GS.  */
1996
1997static inline tree *
1998gimple_call_chain_ptr (const_gimple gs)
1999{
2000  GIMPLE_CHECK (gs, GIMPLE_CALL);
2001  return gimple_op_ptr (gs, 2);
2002}
2003
2004/* Set CHAIN to be the static chain for call statement GS.  */
2005
2006static inline void
2007gimple_call_set_chain (gimple gs, tree chain)
2008{
2009  GIMPLE_CHECK (gs, GIMPLE_CALL);
2010
2011  gimple_set_op (gs, 2, chain);
2012}
2013
2014
2015/* Return the number of arguments used by call statement GS.  */
2016
2017static inline unsigned
2018gimple_call_num_args (const_gimple gs)
2019{
2020  unsigned num_ops;
2021  GIMPLE_CHECK (gs, GIMPLE_CALL);
2022  num_ops = gimple_num_ops (gs);
2023  return num_ops - 3;
2024}
2025
2026
2027/* Return the argument at position INDEX for call statement GS.  */
2028
2029static inline tree
2030gimple_call_arg (const_gimple gs, unsigned index)
2031{
2032  GIMPLE_CHECK (gs, GIMPLE_CALL);
2033  return gimple_op (gs, index + 3);
2034}
2035
2036
2037/* Return a pointer to the argument at position INDEX for call
2038   statement GS.  */
2039
2040static inline tree *
2041gimple_call_arg_ptr (const_gimple gs, unsigned index)
2042{
2043  GIMPLE_CHECK (gs, GIMPLE_CALL);
2044  return gimple_op_ptr (gs, index + 3);
2045}
2046
2047
2048/* Set ARG to be the argument at position INDEX for call statement GS.  */
2049
2050static inline void
2051gimple_call_set_arg (gimple gs, unsigned index, tree arg)
2052{
2053  GIMPLE_CHECK (gs, GIMPLE_CALL);
2054  gimple_set_op (gs, index + 3, arg);
2055}
2056
2057
2058/* If TAIL_P is true, mark call statement S as being a tail call
2059   (i.e., a call just before the exit of a function).  These calls are
2060   candidate for tail call optimization.  */
2061
2062static inline void
2063gimple_call_set_tail (gimple s, bool tail_p)
2064{
2065  GIMPLE_CHECK (s, GIMPLE_CALL);
2066  if (tail_p)
2067    s->gsbase.subcode |= GF_CALL_TAILCALL;
2068  else
2069    s->gsbase.subcode &= ~GF_CALL_TAILCALL;
2070}
2071
2072
2073/* Return true if GIMPLE_CALL S is marked as a tail call.  */
2074
2075static inline bool
2076gimple_call_tail_p (gimple s)
2077{
2078  GIMPLE_CHECK (s, GIMPLE_CALL);
2079  return (s->gsbase.subcode & GF_CALL_TAILCALL) != 0;
2080}
2081
2082
2083/* Set the inlinable status of GIMPLE_CALL S to INLINABLE_P.  */
2084
2085static inline void
2086gimple_call_set_cannot_inline (gimple s, bool inlinable_p)
2087{
2088  GIMPLE_CHECK (s, GIMPLE_CALL);
2089  if (inlinable_p)
2090    s->gsbase.subcode |= GF_CALL_CANNOT_INLINE;
2091  else
2092    s->gsbase.subcode &= ~GF_CALL_CANNOT_INLINE;
2093}
2094
2095
2096/* Return true if GIMPLE_CALL S cannot be inlined.  */
2097
2098static inline bool
2099gimple_call_cannot_inline_p (gimple s)
2100{
2101  GIMPLE_CHECK (s, GIMPLE_CALL);
2102  return (s->gsbase.subcode & GF_CALL_CANNOT_INLINE) != 0;
2103}
2104
2105
2106/* If RETURN_SLOT_OPT_P is true mark GIMPLE_CALL S as valid for return
2107   slot optimization.  This transformation uses the target of the call
2108   expansion as the return slot for calls that return in memory.  */
2109
2110static inline void
2111gimple_call_set_return_slot_opt (gimple s, bool return_slot_opt_p)
2112{
2113  GIMPLE_CHECK (s, GIMPLE_CALL);
2114  if (return_slot_opt_p)
2115    s->gsbase.subcode |= GF_CALL_RETURN_SLOT_OPT;
2116  else
2117    s->gsbase.subcode &= ~GF_CALL_RETURN_SLOT_OPT;
2118}
2119
2120
2121/* Return true if S is marked for return slot optimization.  */
2122
2123static inline bool
2124gimple_call_return_slot_opt_p (gimple s)
2125{
2126  GIMPLE_CHECK (s, GIMPLE_CALL);
2127  return (s->gsbase.subcode & GF_CALL_RETURN_SLOT_OPT) != 0;
2128}
2129
2130
2131/* If FROM_THUNK_P is true, mark GIMPLE_CALL S as being the jump from a
2132   thunk to the thunked-to function.  */
2133
2134static inline void
2135gimple_call_set_from_thunk (gimple s, bool from_thunk_p)
2136{
2137  GIMPLE_CHECK (s, GIMPLE_CALL);
2138  if (from_thunk_p)
2139    s->gsbase.subcode |= GF_CALL_FROM_THUNK;
2140  else
2141    s->gsbase.subcode &= ~GF_CALL_FROM_THUNK;
2142}
2143
2144
2145/* Return true if GIMPLE_CALL S is a jump from a thunk.  */
2146
2147static inline bool
2148gimple_call_from_thunk_p (gimple s)
2149{
2150  GIMPLE_CHECK (s, GIMPLE_CALL);
2151  return (s->gsbase.subcode & GF_CALL_FROM_THUNK) != 0;
2152}
2153
2154
2155/* If PASS_ARG_PACK_P is true, GIMPLE_CALL S is a stdarg call that needs the
2156   argument pack in its argument list.  */
2157
2158static inline void
2159gimple_call_set_va_arg_pack (gimple s, bool pass_arg_pack_p)
2160{
2161  GIMPLE_CHECK (s, GIMPLE_CALL);
2162  if (pass_arg_pack_p)
2163    s->gsbase.subcode |= GF_CALL_VA_ARG_PACK;
2164  else
2165    s->gsbase.subcode &= ~GF_CALL_VA_ARG_PACK;
2166}
2167
2168
2169/* Return true if GIMPLE_CALL S is a stdarg call that needs the
2170   argument pack in its argument list.  */
2171
2172static inline bool
2173gimple_call_va_arg_pack_p (gimple s)
2174{
2175  GIMPLE_CHECK (s, GIMPLE_CALL);
2176  return (s->gsbase.subcode & GF_CALL_VA_ARG_PACK) != 0;
2177}
2178
2179
2180/* Return true if S is a noreturn call.  */
2181
2182static inline bool
2183gimple_call_noreturn_p (gimple s)
2184{
2185  GIMPLE_CHECK (s, GIMPLE_CALL);
2186  return (gimple_call_flags (s) & ECF_NORETURN) != 0;
2187}
2188
2189
2190/* If NOTHROW_P is true, GIMPLE_CALL S is a call that is known to not throw
2191   even if the called function can throw in other cases.  */
2192
2193static inline void
2194gimple_call_set_nothrow (gimple s, bool nothrow_p)
2195{
2196  GIMPLE_CHECK (s, GIMPLE_CALL);
2197  if (nothrow_p)
2198    s->gsbase.subcode |= GF_CALL_NOTHROW;
2199  else
2200    s->gsbase.subcode &= ~GF_CALL_NOTHROW;
2201}
2202
2203/* Return true if S is a nothrow call.  */
2204
2205static inline bool
2206gimple_call_nothrow_p (gimple s)
2207{
2208  GIMPLE_CHECK (s, GIMPLE_CALL);
2209  return (gimple_call_flags (s) & ECF_NOTHROW) != 0;
2210}
2211
2212
2213/* Copy all the GF_CALL_* flags from ORIG_CALL to DEST_CALL.  */
2214
2215static inline void
2216gimple_call_copy_flags (gimple dest_call, gimple orig_call)
2217{
2218  GIMPLE_CHECK (dest_call, GIMPLE_CALL);
2219  GIMPLE_CHECK (orig_call, GIMPLE_CALL);
2220  dest_call->gsbase.subcode = orig_call->gsbase.subcode;
2221}
2222
2223
2224/* Returns true if this is a GIMPLE_ASSIGN or a GIMPLE_CALL with a
2225   non-NULL lhs.  */
2226
2227static inline bool
2228gimple_has_lhs (gimple stmt)
2229{
2230  return (is_gimple_assign (stmt)
2231	  || (is_gimple_call (stmt)
2232	      && gimple_call_lhs (stmt) != NULL_TREE));
2233}
2234
2235
2236/* Return the code of the predicate computed by conditional statement GS.  */
2237
2238static inline enum tree_code
2239gimple_cond_code (const_gimple gs)
2240{
2241  GIMPLE_CHECK (gs, GIMPLE_COND);
2242  return (enum tree_code) gs->gsbase.subcode;
2243}
2244
2245
2246/* Set CODE to be the predicate code for the conditional statement GS.  */
2247
2248static inline void
2249gimple_cond_set_code (gimple gs, enum tree_code code)
2250{
2251  GIMPLE_CHECK (gs, GIMPLE_COND);
2252  gs->gsbase.subcode = code;
2253}
2254
2255
2256/* Return the LHS of the predicate computed by conditional statement GS.  */
2257
2258static inline tree
2259gimple_cond_lhs (const_gimple gs)
2260{
2261  GIMPLE_CHECK (gs, GIMPLE_COND);
2262  return gimple_op (gs, 0);
2263}
2264
2265/* Return the pointer to the LHS of the predicate computed by conditional
2266   statement GS.  */
2267
2268static inline tree *
2269gimple_cond_lhs_ptr (const_gimple gs)
2270{
2271  GIMPLE_CHECK (gs, GIMPLE_COND);
2272  return gimple_op_ptr (gs, 0);
2273}
2274
2275/* Set LHS to be the LHS operand of the predicate computed by
2276   conditional statement GS.  */
2277
2278static inline void
2279gimple_cond_set_lhs (gimple gs, tree lhs)
2280{
2281  GIMPLE_CHECK (gs, GIMPLE_COND);
2282  gimple_set_op (gs, 0, lhs);
2283}
2284
2285
2286/* Return the RHS operand of the predicate computed by conditional GS.  */
2287
2288static inline tree
2289gimple_cond_rhs (const_gimple gs)
2290{
2291  GIMPLE_CHECK (gs, GIMPLE_COND);
2292  return gimple_op (gs, 1);
2293}
2294
2295/* Return the pointer to the RHS operand of the predicate computed by
2296   conditional GS.  */
2297
2298static inline tree *
2299gimple_cond_rhs_ptr (const_gimple gs)
2300{
2301  GIMPLE_CHECK (gs, GIMPLE_COND);
2302  return gimple_op_ptr (gs, 1);
2303}
2304
2305
2306/* Set RHS to be the RHS operand of the predicate computed by
2307   conditional statement GS.  */
2308
2309static inline void
2310gimple_cond_set_rhs (gimple gs, tree rhs)
2311{
2312  GIMPLE_CHECK (gs, GIMPLE_COND);
2313  gimple_set_op (gs, 1, rhs);
2314}
2315
2316
2317/* Return the label used by conditional statement GS when its
2318   predicate evaluates to true.  */
2319
2320static inline tree
2321gimple_cond_true_label (const_gimple gs)
2322{
2323  GIMPLE_CHECK (gs, GIMPLE_COND);
2324  return gimple_op (gs, 2);
2325}
2326
2327
2328/* Set LABEL to be the label used by conditional statement GS when its
2329   predicate evaluates to true.  */
2330
2331static inline void
2332gimple_cond_set_true_label (gimple gs, tree label)
2333{
2334  GIMPLE_CHECK (gs, GIMPLE_COND);
2335  gimple_set_op (gs, 2, label);
2336}
2337
2338
2339/* Set LABEL to be the label used by conditional statement GS when its
2340   predicate evaluates to false.  */
2341
2342static inline void
2343gimple_cond_set_false_label (gimple gs, tree label)
2344{
2345  GIMPLE_CHECK (gs, GIMPLE_COND);
2346  gimple_set_op (gs, 3, label);
2347}
2348
2349
2350/* Return the label used by conditional statement GS when its
2351   predicate evaluates to false.  */
2352
2353static inline tree
2354gimple_cond_false_label (const_gimple gs)
2355{
2356  GIMPLE_CHECK (gs, GIMPLE_COND);
2357  return gimple_op (gs, 3);
2358}
2359
2360
2361/* Set the conditional COND_STMT to be of the form 'if (1 == 0)'.  */
2362
2363static inline void
2364gimple_cond_make_false (gimple gs)
2365{
2366  gimple_cond_set_lhs (gs, boolean_true_node);
2367  gimple_cond_set_rhs (gs, boolean_false_node);
2368  gs->gsbase.subcode = EQ_EXPR;
2369}
2370
2371
2372/* Set the conditional COND_STMT to be of the form 'if (1 == 1)'.  */
2373
2374static inline void
2375gimple_cond_make_true (gimple gs)
2376{
2377  gimple_cond_set_lhs (gs, boolean_true_node);
2378  gimple_cond_set_rhs (gs, boolean_true_node);
2379  gs->gsbase.subcode = EQ_EXPR;
2380}
2381
2382/* Check if conditional statemente GS is of the form 'if (1 == 1)',
2383  'if (0 == 0)', 'if (1 != 0)' or 'if (0 != 1)' */
2384
2385static inline bool
2386gimple_cond_true_p (const_gimple gs)
2387{
2388  tree lhs = gimple_cond_lhs (gs);
2389  tree rhs = gimple_cond_rhs (gs);
2390  enum tree_code code = gimple_cond_code (gs);
2391
2392  if (lhs != boolean_true_node && lhs != boolean_false_node)
2393    return false;
2394
2395  if (rhs != boolean_true_node && rhs != boolean_false_node)
2396    return false;
2397
2398  if (code == NE_EXPR && lhs != rhs)
2399    return true;
2400
2401  if (code == EQ_EXPR && lhs == rhs)
2402      return true;
2403
2404  return false;
2405}
2406
2407/* Check if conditional statement GS is of the form 'if (1 != 1)',
2408   'if (0 != 0)', 'if (1 == 0)' or 'if (0 == 1)' */
2409
2410static inline bool
2411gimple_cond_false_p (const_gimple gs)
2412{
2413  tree lhs = gimple_cond_lhs (gs);
2414  tree rhs = gimple_cond_rhs (gs);
2415  enum tree_code code = gimple_cond_code (gs);
2416
2417  if (lhs != boolean_true_node && lhs != boolean_false_node)
2418    return false;
2419
2420  if (rhs != boolean_true_node && rhs != boolean_false_node)
2421    return false;
2422
2423  if (code == NE_EXPR && lhs == rhs)
2424    return true;
2425
2426  if (code == EQ_EXPR && lhs != rhs)
2427      return true;
2428
2429  return false;
2430}
2431
2432/* Check if conditional statement GS is of the form 'if (var != 0)' or
2433   'if (var == 1)' */
2434
2435static inline bool
2436gimple_cond_single_var_p (gimple gs)
2437{
2438  if (gimple_cond_code (gs) == NE_EXPR
2439      && gimple_cond_rhs (gs) == boolean_false_node)
2440    return true;
2441
2442  if (gimple_cond_code (gs) == EQ_EXPR
2443      && gimple_cond_rhs (gs) == boolean_true_node)
2444    return true;
2445
2446  return false;
2447}
2448
2449/* Set the code, LHS and RHS of GIMPLE_COND STMT from CODE, LHS and RHS.  */
2450
2451static inline void
2452gimple_cond_set_condition (gimple stmt, enum tree_code code, tree lhs, tree rhs)
2453{
2454  gimple_cond_set_code (stmt, code);
2455  gimple_cond_set_lhs (stmt, lhs);
2456  gimple_cond_set_rhs (stmt, rhs);
2457}
2458
2459/* Return the LABEL_DECL node used by GIMPLE_LABEL statement GS.  */
2460
2461static inline tree
2462gimple_label_label (const_gimple gs)
2463{
2464  GIMPLE_CHECK (gs, GIMPLE_LABEL);
2465  return gimple_op (gs, 0);
2466}
2467
2468
2469/* Set LABEL to be the LABEL_DECL node used by GIMPLE_LABEL statement
2470   GS.  */
2471
2472static inline void
2473gimple_label_set_label (gimple gs, tree label)
2474{
2475  GIMPLE_CHECK (gs, GIMPLE_LABEL);
2476  gimple_set_op (gs, 0, label);
2477}
2478
2479
2480/* Return the destination of the unconditional jump GS.  */
2481
2482static inline tree
2483gimple_goto_dest (const_gimple gs)
2484{
2485  GIMPLE_CHECK (gs, GIMPLE_GOTO);
2486  return gimple_op (gs, 0);
2487}
2488
2489
2490/* Set DEST to be the destination of the unconditonal jump GS.  */
2491
2492static inline void
2493gimple_goto_set_dest (gimple gs, tree dest)
2494{
2495  GIMPLE_CHECK (gs, GIMPLE_GOTO);
2496  gimple_set_op (gs, 0, dest);
2497}
2498
2499
2500/* Return the variables declared in the GIMPLE_BIND statement GS.  */
2501
2502static inline tree
2503gimple_bind_vars (const_gimple gs)
2504{
2505  GIMPLE_CHECK (gs, GIMPLE_BIND);
2506  return gs->gimple_bind.vars;
2507}
2508
2509
2510/* Set VARS to be the set of variables declared in the GIMPLE_BIND
2511   statement GS.  */
2512
2513static inline void
2514gimple_bind_set_vars (gimple gs, tree vars)
2515{
2516  GIMPLE_CHECK (gs, GIMPLE_BIND);
2517  gs->gimple_bind.vars = vars;
2518}
2519
2520
2521/* Append VARS to the set of variables declared in the GIMPLE_BIND
2522   statement GS.  */
2523
2524static inline void
2525gimple_bind_append_vars (gimple gs, tree vars)
2526{
2527  GIMPLE_CHECK (gs, GIMPLE_BIND);
2528  gs->gimple_bind.vars = chainon (gs->gimple_bind.vars, vars);
2529}
2530
2531
2532/* Return the GIMPLE sequence contained in the GIMPLE_BIND statement GS.  */
2533
2534static inline gimple_seq
2535gimple_bind_body (gimple gs)
2536{
2537  GIMPLE_CHECK (gs, GIMPLE_BIND);
2538  return gs->gimple_bind.body;
2539}
2540
2541
2542/* Set SEQ to be the GIMPLE sequence contained in the GIMPLE_BIND
2543   statement GS.  */
2544
2545static inline void
2546gimple_bind_set_body (gimple gs, gimple_seq seq)
2547{
2548  GIMPLE_CHECK (gs, GIMPLE_BIND);
2549  gs->gimple_bind.body = seq;
2550}
2551
2552
2553/* Append a statement to the end of a GIMPLE_BIND's body.  */
2554
2555static inline void
2556gimple_bind_add_stmt (gimple gs, gimple stmt)
2557{
2558  GIMPLE_CHECK (gs, GIMPLE_BIND);
2559  gimple_seq_add_stmt (&gs->gimple_bind.body, stmt);
2560}
2561
2562
2563/* Append a sequence of statements to the end of a GIMPLE_BIND's body.  */
2564
2565static inline void
2566gimple_bind_add_seq (gimple gs, gimple_seq seq)
2567{
2568  GIMPLE_CHECK (gs, GIMPLE_BIND);
2569  gimple_seq_add_seq (&gs->gimple_bind.body, seq);
2570}
2571
2572
2573/* Return the TREE_BLOCK node associated with GIMPLE_BIND statement
2574   GS.  This is analogous to the BIND_EXPR_BLOCK field in trees.  */
2575
2576static inline tree
2577gimple_bind_block (const_gimple gs)
2578{
2579  GIMPLE_CHECK (gs, GIMPLE_BIND);
2580  return gs->gimple_bind.block;
2581}
2582
2583
2584/* Set BLOCK to be the TREE_BLOCK node associated with GIMPLE_BIND
2585   statement GS.  */
2586
2587static inline void
2588gimple_bind_set_block (gimple gs, tree block)
2589{
2590  GIMPLE_CHECK (gs, GIMPLE_BIND);
2591  gcc_assert (block == NULL_TREE || TREE_CODE (block) == BLOCK);
2592  gs->gimple_bind.block = block;
2593}
2594
2595
2596/* Return the number of input operands for GIMPLE_ASM GS.  */
2597
2598static inline unsigned
2599gimple_asm_ninputs (const_gimple gs)
2600{
2601  GIMPLE_CHECK (gs, GIMPLE_ASM);
2602  return gs->gimple_asm.ni;
2603}
2604
2605
2606/* Return the number of output operands for GIMPLE_ASM GS.  */
2607
2608static inline unsigned
2609gimple_asm_noutputs (const_gimple gs)
2610{
2611  GIMPLE_CHECK (gs, GIMPLE_ASM);
2612  return gs->gimple_asm.no;
2613}
2614
2615
2616/* Return the number of clobber operands for GIMPLE_ASM GS.  */
2617
2618static inline unsigned
2619gimple_asm_nclobbers (const_gimple gs)
2620{
2621  GIMPLE_CHECK (gs, GIMPLE_ASM);
2622  return gs->gimple_asm.nc;
2623}
2624
2625/* Return the number of label operands for GIMPLE_ASM GS.  */
2626
2627static inline unsigned
2628gimple_asm_nlabels (const_gimple gs)
2629{
2630  GIMPLE_CHECK (gs, GIMPLE_ASM);
2631  return gs->gimple_asm.nl;
2632}
2633
2634/* Return input operand INDEX of GIMPLE_ASM GS.  */
2635
2636static inline tree
2637gimple_asm_input_op (const_gimple gs, unsigned index)
2638{
2639  GIMPLE_CHECK (gs, GIMPLE_ASM);
2640  gcc_assert (index <= gs->gimple_asm.ni);
2641  return gimple_op (gs, index);
2642}
2643
2644/* Return a pointer to input operand INDEX of GIMPLE_ASM GS.  */
2645
2646static inline tree *
2647gimple_asm_input_op_ptr (const_gimple gs, unsigned index)
2648{
2649  GIMPLE_CHECK (gs, GIMPLE_ASM);
2650  gcc_assert (index <= gs->gimple_asm.ni);
2651  return gimple_op_ptr (gs, index);
2652}
2653
2654
2655/* Set IN_OP to be input operand INDEX in GIMPLE_ASM GS.  */
2656
2657static inline void
2658gimple_asm_set_input_op (gimple gs, unsigned index, tree in_op)
2659{
2660  GIMPLE_CHECK (gs, GIMPLE_ASM);
2661  gcc_assert (index <= gs->gimple_asm.ni);
2662  gcc_assert (TREE_CODE (in_op) == TREE_LIST);
2663  gimple_set_op (gs, index, in_op);
2664}
2665
2666
2667/* Return output operand INDEX of GIMPLE_ASM GS.  */
2668
2669static inline tree
2670gimple_asm_output_op (const_gimple gs, unsigned index)
2671{
2672  GIMPLE_CHECK (gs, GIMPLE_ASM);
2673  gcc_assert (index <= gs->gimple_asm.no);
2674  return gimple_op (gs, index + gs->gimple_asm.ni);
2675}
2676
2677/* Return a pointer to output operand INDEX of GIMPLE_ASM GS.  */
2678
2679static inline tree *
2680gimple_asm_output_op_ptr (const_gimple gs, unsigned index)
2681{
2682  GIMPLE_CHECK (gs, GIMPLE_ASM);
2683  gcc_assert (index <= gs->gimple_asm.no);
2684  return gimple_op_ptr (gs, index + gs->gimple_asm.ni);
2685}
2686
2687
2688/* Set OUT_OP to be output operand INDEX in GIMPLE_ASM GS.  */
2689
2690static inline void
2691gimple_asm_set_output_op (gimple gs, unsigned index, tree out_op)
2692{
2693  GIMPLE_CHECK (gs, GIMPLE_ASM);
2694  gcc_assert (index <= gs->gimple_asm.no);
2695  gcc_assert (TREE_CODE (out_op) == TREE_LIST);
2696  gimple_set_op (gs, index + gs->gimple_asm.ni, out_op);
2697}
2698
2699
2700/* Return clobber operand INDEX of GIMPLE_ASM GS.  */
2701
2702static inline tree
2703gimple_asm_clobber_op (const_gimple gs, unsigned index)
2704{
2705  GIMPLE_CHECK (gs, GIMPLE_ASM);
2706  gcc_assert (index <= gs->gimple_asm.nc);
2707  return gimple_op (gs, index + gs->gimple_asm.ni + gs->gimple_asm.no);
2708}
2709
2710
2711/* Set CLOBBER_OP to be clobber operand INDEX in GIMPLE_ASM GS.  */
2712
2713static inline void
2714gimple_asm_set_clobber_op (gimple gs, unsigned index, tree clobber_op)
2715{
2716  GIMPLE_CHECK (gs, GIMPLE_ASM);
2717  gcc_assert (index <= gs->gimple_asm.nc);
2718  gcc_assert (TREE_CODE (clobber_op) == TREE_LIST);
2719  gimple_set_op (gs, index + gs->gimple_asm.ni + gs->gimple_asm.no, clobber_op);
2720}
2721
2722/* Return label operand INDEX of GIMPLE_ASM GS.  */
2723
2724static inline tree
2725gimple_asm_label_op (const_gimple gs, unsigned index)
2726{
2727  GIMPLE_CHECK (gs, GIMPLE_ASM);
2728  gcc_assert (index <= gs->gimple_asm.nl);
2729  return gimple_op (gs, index + gs->gimple_asm.ni + gs->gimple_asm.nc);
2730}
2731
2732/* Set LABEL_OP to be label operand INDEX in GIMPLE_ASM GS.  */
2733
2734static inline void
2735gimple_asm_set_label_op (gimple gs, unsigned index, tree label_op)
2736{
2737  GIMPLE_CHECK (gs, GIMPLE_ASM);
2738  gcc_assert (index <= gs->gimple_asm.nl);
2739  gcc_assert (TREE_CODE (label_op) == TREE_LIST);
2740  gimple_set_op (gs, index + gs->gimple_asm.ni + gs->gimple_asm.nc, label_op);
2741}
2742
2743/* Return the string representing the assembly instruction in
2744   GIMPLE_ASM GS.  */
2745
2746static inline const char *
2747gimple_asm_string (const_gimple gs)
2748{
2749  GIMPLE_CHECK (gs, GIMPLE_ASM);
2750  return gs->gimple_asm.string;
2751}
2752
2753
2754/* Return true if GS is an asm statement marked volatile.  */
2755
2756static inline bool
2757gimple_asm_volatile_p (const_gimple gs)
2758{
2759  GIMPLE_CHECK (gs, GIMPLE_ASM);
2760  return (gs->gsbase.subcode & GF_ASM_VOLATILE) != 0;
2761}
2762
2763
2764/* If VOLATLE_P is true, mark asm statement GS as volatile.  */
2765
2766static inline void
2767gimple_asm_set_volatile (gimple gs, bool volatile_p)
2768{
2769  GIMPLE_CHECK (gs, GIMPLE_ASM);
2770  if (volatile_p)
2771    gs->gsbase.subcode |= GF_ASM_VOLATILE;
2772  else
2773    gs->gsbase.subcode &= ~GF_ASM_VOLATILE;
2774}
2775
2776
2777/* If INPUT_P is true, mark asm GS as an ASM_INPUT.  */
2778
2779static inline void
2780gimple_asm_set_input (gimple gs, bool input_p)
2781{
2782  GIMPLE_CHECK (gs, GIMPLE_ASM);
2783  if (input_p)
2784    gs->gsbase.subcode |= GF_ASM_INPUT;
2785  else
2786    gs->gsbase.subcode &= ~GF_ASM_INPUT;
2787}
2788
2789
2790/* Return true if asm GS is an ASM_INPUT.  */
2791
2792static inline bool
2793gimple_asm_input_p (const_gimple gs)
2794{
2795  GIMPLE_CHECK (gs, GIMPLE_ASM);
2796  return (gs->gsbase.subcode & GF_ASM_INPUT) != 0;
2797}
2798
2799
2800/* Return the types handled by GIMPLE_CATCH statement GS.  */
2801
2802static inline tree
2803gimple_catch_types (const_gimple gs)
2804{
2805  GIMPLE_CHECK (gs, GIMPLE_CATCH);
2806  return gs->gimple_catch.types;
2807}
2808
2809
2810/* Return a pointer to the types handled by GIMPLE_CATCH statement GS.  */
2811
2812static inline tree *
2813gimple_catch_types_ptr (gimple gs)
2814{
2815  GIMPLE_CHECK (gs, GIMPLE_CATCH);
2816  return &gs->gimple_catch.types;
2817}
2818
2819
2820/* Return the GIMPLE sequence representing the body of the handler of
2821   GIMPLE_CATCH statement GS.  */
2822
2823static inline gimple_seq
2824gimple_catch_handler (gimple gs)
2825{
2826  GIMPLE_CHECK (gs, GIMPLE_CATCH);
2827  return gs->gimple_catch.handler;
2828}
2829
2830
2831/* Return a pointer to the GIMPLE sequence representing the body of
2832   the handler of GIMPLE_CATCH statement GS.  */
2833
2834static inline gimple_seq *
2835gimple_catch_handler_ptr (gimple gs)
2836{
2837  GIMPLE_CHECK (gs, GIMPLE_CATCH);
2838  return &gs->gimple_catch.handler;
2839}
2840
2841
2842/* Set T to be the set of types handled by GIMPLE_CATCH GS.  */
2843
2844static inline void
2845gimple_catch_set_types (gimple gs, tree t)
2846{
2847  GIMPLE_CHECK (gs, GIMPLE_CATCH);
2848  gs->gimple_catch.types = t;
2849}
2850
2851
2852/* Set HANDLER to be the body of GIMPLE_CATCH GS.  */
2853
2854static inline void
2855gimple_catch_set_handler (gimple gs, gimple_seq handler)
2856{
2857  GIMPLE_CHECK (gs, GIMPLE_CATCH);
2858  gs->gimple_catch.handler = handler;
2859}
2860
2861
2862/* Return the types handled by GIMPLE_EH_FILTER statement GS.  */
2863
2864static inline tree
2865gimple_eh_filter_types (const_gimple gs)
2866{
2867  GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
2868  return gs->gimple_eh_filter.types;
2869}
2870
2871
2872/* Return a pointer to the types handled by GIMPLE_EH_FILTER statement
2873   GS.  */
2874
2875static inline tree *
2876gimple_eh_filter_types_ptr (gimple gs)
2877{
2878  GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
2879  return &gs->gimple_eh_filter.types;
2880}
2881
2882
2883/* Return the sequence of statement to execute when GIMPLE_EH_FILTER
2884   statement fails.  */
2885
2886static inline gimple_seq
2887gimple_eh_filter_failure (gimple gs)
2888{
2889  GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
2890  return gs->gimple_eh_filter.failure;
2891}
2892
2893
2894/* Set TYPES to be the set of types handled by GIMPLE_EH_FILTER GS.  */
2895
2896static inline void
2897gimple_eh_filter_set_types (gimple gs, tree types)
2898{
2899  GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
2900  gs->gimple_eh_filter.types = types;
2901}
2902
2903
2904/* Set FAILURE to be the sequence of statements to execute on failure
2905   for GIMPLE_EH_FILTER GS.  */
2906
2907static inline void
2908gimple_eh_filter_set_failure (gimple gs, gimple_seq failure)
2909{
2910  GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
2911  gs->gimple_eh_filter.failure = failure;
2912}
2913
2914/* Get the function decl to be called by the MUST_NOT_THROW region.  */
2915
2916static inline tree
2917gimple_eh_must_not_throw_fndecl (gimple gs)
2918{
2919  GIMPLE_CHECK (gs, GIMPLE_EH_MUST_NOT_THROW);
2920  return gs->gimple_eh_mnt.fndecl;
2921}
2922
2923/* Set the function decl to be called by GS to DECL.  */
2924
2925static inline void
2926gimple_eh_must_not_throw_set_fndecl (gimple gs, tree decl)
2927{
2928  GIMPLE_CHECK (gs, GIMPLE_EH_MUST_NOT_THROW);
2929  gs->gimple_eh_mnt.fndecl = decl;
2930}
2931
2932
2933/* GIMPLE_TRY accessors. */
2934
2935/* Return the kind of try block represented by GIMPLE_TRY GS.  This is
2936   either GIMPLE_TRY_CATCH or GIMPLE_TRY_FINALLY.  */
2937
2938static inline enum gimple_try_flags
2939gimple_try_kind (const_gimple gs)
2940{
2941  GIMPLE_CHECK (gs, GIMPLE_TRY);
2942  return (enum gimple_try_flags) (gs->gsbase.subcode & GIMPLE_TRY_KIND);
2943}
2944
2945
2946/* Set the kind of try block represented by GIMPLE_TRY GS.  */
2947
2948static inline void
2949gimple_try_set_kind (gimple gs, enum gimple_try_flags kind)
2950{
2951  GIMPLE_CHECK (gs, GIMPLE_TRY);
2952  gcc_assert (kind == GIMPLE_TRY_CATCH || kind == GIMPLE_TRY_FINALLY);
2953  if (gimple_try_kind (gs) != kind)
2954    gs->gsbase.subcode = (unsigned int) kind;
2955}
2956
2957
2958/* Return the GIMPLE_TRY_CATCH_IS_CLEANUP flag.  */
2959
2960static inline bool
2961gimple_try_catch_is_cleanup (const_gimple gs)
2962{
2963  gcc_assert (gimple_try_kind (gs) == GIMPLE_TRY_CATCH);
2964  return (gs->gsbase.subcode & GIMPLE_TRY_CATCH_IS_CLEANUP) != 0;
2965}
2966
2967
2968/* Return the sequence of statements used as the body for GIMPLE_TRY GS.  */
2969
2970static inline gimple_seq
2971gimple_try_eval (gimple gs)
2972{
2973  GIMPLE_CHECK (gs, GIMPLE_TRY);
2974  return gs->gimple_try.eval;
2975}
2976
2977
2978/* Return the sequence of statements used as the cleanup body for
2979   GIMPLE_TRY GS.  */
2980
2981static inline gimple_seq
2982gimple_try_cleanup (gimple gs)
2983{
2984  GIMPLE_CHECK (gs, GIMPLE_TRY);
2985  return gs->gimple_try.cleanup;
2986}
2987
2988
2989/* Set the GIMPLE_TRY_CATCH_IS_CLEANUP flag.  */
2990
2991static inline void
2992gimple_try_set_catch_is_cleanup (gimple g, bool catch_is_cleanup)
2993{
2994  gcc_assert (gimple_try_kind (g) == GIMPLE_TRY_CATCH);
2995  if (catch_is_cleanup)
2996    g->gsbase.subcode |= GIMPLE_TRY_CATCH_IS_CLEANUP;
2997  else
2998    g->gsbase.subcode &= ~GIMPLE_TRY_CATCH_IS_CLEANUP;
2999}
3000
3001
3002/* Set EVAL to be the sequence of statements to use as the body for
3003   GIMPLE_TRY GS.  */
3004
3005static inline void
3006gimple_try_set_eval (gimple gs, gimple_seq eval)
3007{
3008  GIMPLE_CHECK (gs, GIMPLE_TRY);
3009  gs->gimple_try.eval = eval;
3010}
3011
3012
3013/* Set CLEANUP to be the sequence of statements to use as the cleanup
3014   body for GIMPLE_TRY GS.  */
3015
3016static inline void
3017gimple_try_set_cleanup (gimple gs, gimple_seq cleanup)
3018{
3019  GIMPLE_CHECK (gs, GIMPLE_TRY);
3020  gs->gimple_try.cleanup = cleanup;
3021}
3022
3023
3024/* Return the cleanup sequence for cleanup statement GS.  */
3025
3026static inline gimple_seq
3027gimple_wce_cleanup (gimple gs)
3028{
3029  GIMPLE_CHECK (gs, GIMPLE_WITH_CLEANUP_EXPR);
3030  return gs->gimple_wce.cleanup;
3031}
3032
3033
3034/* Set CLEANUP to be the cleanup sequence for GS.  */
3035
3036static inline void
3037gimple_wce_set_cleanup (gimple gs, gimple_seq cleanup)
3038{
3039  GIMPLE_CHECK (gs, GIMPLE_WITH_CLEANUP_EXPR);
3040  gs->gimple_wce.cleanup = cleanup;
3041}
3042
3043
3044/* Return the CLEANUP_EH_ONLY flag for a WCE tuple.  */
3045
3046static inline bool
3047gimple_wce_cleanup_eh_only (const_gimple gs)
3048{
3049  GIMPLE_CHECK (gs, GIMPLE_WITH_CLEANUP_EXPR);
3050  return gs->gsbase.subcode != 0;
3051}
3052
3053
3054/* Set the CLEANUP_EH_ONLY flag for a WCE tuple.  */
3055
3056static inline void
3057gimple_wce_set_cleanup_eh_only (gimple gs, bool eh_only_p)
3058{
3059  GIMPLE_CHECK (gs, GIMPLE_WITH_CLEANUP_EXPR);
3060  gs->gsbase.subcode = (unsigned int) eh_only_p;
3061}
3062
3063
3064/* Return the maximum number of arguments supported by GIMPLE_PHI GS.  */
3065
3066static inline unsigned
3067gimple_phi_capacity (const_gimple gs)
3068{
3069  GIMPLE_CHECK (gs, GIMPLE_PHI);
3070  return gs->gimple_phi.capacity;
3071}
3072
3073
3074/* Return the number of arguments in GIMPLE_PHI GS.  This must always
3075   be exactly the number of incoming edges for the basic block holding
3076   GS.  */
3077
3078static inline unsigned
3079gimple_phi_num_args (const_gimple gs)
3080{
3081  GIMPLE_CHECK (gs, GIMPLE_PHI);
3082  return gs->gimple_phi.nargs;
3083}
3084
3085
3086/* Return the SSA name created by GIMPLE_PHI GS.  */
3087
3088static inline tree
3089gimple_phi_result (const_gimple gs)
3090{
3091  GIMPLE_CHECK (gs, GIMPLE_PHI);
3092  return gs->gimple_phi.result;
3093}
3094
3095/* Return a pointer to the SSA name created by GIMPLE_PHI GS.  */
3096
3097static inline tree *
3098gimple_phi_result_ptr (gimple gs)
3099{
3100  GIMPLE_CHECK (gs, GIMPLE_PHI);
3101  return &gs->gimple_phi.result;
3102}
3103
3104/* Set RESULT to be the SSA name created by GIMPLE_PHI GS.  */
3105
3106static inline void
3107gimple_phi_set_result (gimple gs, tree result)
3108{
3109  GIMPLE_CHECK (gs, GIMPLE_PHI);
3110  gs->gimple_phi.result = result;
3111}
3112
3113
3114/* Return the PHI argument corresponding to incoming edge INDEX for
3115   GIMPLE_PHI GS.  */
3116
3117static inline struct phi_arg_d *
3118gimple_phi_arg (gimple gs, unsigned index)
3119{
3120  GIMPLE_CHECK (gs, GIMPLE_PHI);
3121  gcc_assert (index <= gs->gimple_phi.capacity);
3122  return &(gs->gimple_phi.args[index]);
3123}
3124
3125/* Set PHIARG to be the argument corresponding to incoming edge INDEX
3126   for GIMPLE_PHI GS.  */
3127
3128static inline void
3129gimple_phi_set_arg (gimple gs, unsigned index, struct phi_arg_d * phiarg)
3130{
3131  GIMPLE_CHECK (gs, GIMPLE_PHI);
3132  gcc_assert (index <= gs->gimple_phi.nargs);
3133  memcpy (gs->gimple_phi.args + index, phiarg, sizeof (struct phi_arg_d));
3134}
3135
3136/* Return the region number for GIMPLE_RESX GS.  */
3137
3138static inline int
3139gimple_resx_region (const_gimple gs)
3140{
3141  GIMPLE_CHECK (gs, GIMPLE_RESX);
3142  return gs->gimple_eh_ctrl.region;
3143}
3144
3145/* Set REGION to be the region number for GIMPLE_RESX GS.  */
3146
3147static inline void
3148gimple_resx_set_region (gimple gs, int region)
3149{
3150  GIMPLE_CHECK (gs, GIMPLE_RESX);
3151  gs->gimple_eh_ctrl.region = region;
3152}
3153
3154/* Return the region number for GIMPLE_EH_DISPATCH GS.  */
3155
3156static inline int
3157gimple_eh_dispatch_region (const_gimple gs)
3158{
3159  GIMPLE_CHECK (gs, GIMPLE_EH_DISPATCH);
3160  return gs->gimple_eh_ctrl.region;
3161}
3162
3163/* Set REGION to be the region number for GIMPLE_EH_DISPATCH GS.  */
3164
3165static inline void
3166gimple_eh_dispatch_set_region (gimple gs, int region)
3167{
3168  GIMPLE_CHECK (gs, GIMPLE_EH_DISPATCH);
3169  gs->gimple_eh_ctrl.region = region;
3170}
3171
3172/* Return the number of labels associated with the switch statement GS.  */
3173
3174static inline unsigned
3175gimple_switch_num_labels (const_gimple gs)
3176{
3177  unsigned num_ops;
3178  GIMPLE_CHECK (gs, GIMPLE_SWITCH);
3179  num_ops = gimple_num_ops (gs);
3180  gcc_assert (num_ops > 1);
3181  return num_ops - 1;
3182}
3183
3184
3185/* Set NLABELS to be the number of labels for the switch statement GS.  */
3186
3187static inline void
3188gimple_switch_set_num_labels (gimple g, unsigned nlabels)
3189{
3190  GIMPLE_CHECK (g, GIMPLE_SWITCH);
3191  gimple_set_num_ops (g, nlabels + 1);
3192}
3193
3194
3195/* Return the index variable used by the switch statement GS.  */
3196
3197static inline tree
3198gimple_switch_index (const_gimple gs)
3199{
3200  GIMPLE_CHECK (gs, GIMPLE_SWITCH);
3201  return gimple_op (gs, 0);
3202}
3203
3204
3205/* Return a pointer to the index variable for the switch statement GS.  */
3206
3207static inline tree *
3208gimple_switch_index_ptr (const_gimple gs)
3209{
3210  GIMPLE_CHECK (gs, GIMPLE_SWITCH);
3211  return gimple_op_ptr (gs, 0);
3212}
3213
3214
3215/* Set INDEX to be the index variable for switch statement GS.  */
3216
3217static inline void
3218gimple_switch_set_index (gimple gs, tree index)
3219{
3220  GIMPLE_CHECK (gs, GIMPLE_SWITCH);
3221  gcc_assert (SSA_VAR_P (index) || CONSTANT_CLASS_P (index));
3222  gimple_set_op (gs, 0, index);
3223}
3224
3225
3226/* Return the label numbered INDEX.  The default label is 0, followed by any
3227   labels in a switch statement.  */
3228
3229static inline tree
3230gimple_switch_label (const_gimple gs, unsigned index)
3231{
3232  GIMPLE_CHECK (gs, GIMPLE_SWITCH);
3233  gcc_assert (gimple_num_ops (gs) > index + 1);
3234  return gimple_op (gs, index + 1);
3235}
3236
3237/* Set the label number INDEX to LABEL.  0 is always the default label.  */
3238
3239static inline void
3240gimple_switch_set_label (gimple gs, unsigned index, tree label)
3241{
3242  GIMPLE_CHECK (gs, GIMPLE_SWITCH);
3243  gcc_assert (gimple_num_ops (gs) > index + 1);
3244  gcc_assert (label == NULL_TREE || TREE_CODE (label) == CASE_LABEL_EXPR);
3245  gimple_set_op (gs, index + 1, label);
3246}
3247
3248/* Return the default label for a switch statement.  */
3249
3250static inline tree
3251gimple_switch_default_label (const_gimple gs)
3252{
3253  return gimple_switch_label (gs, 0);
3254}
3255
3256/* Set the default label for a switch statement.  */
3257
3258static inline void
3259gimple_switch_set_default_label (gimple gs, tree label)
3260{
3261  gimple_switch_set_label (gs, 0, label);
3262}
3263
3264/* Return true if GS is a GIMPLE_DEBUG statement.  */
3265
3266static inline bool
3267is_gimple_debug (const_gimple gs)
3268{
3269  return gimple_code (gs) == GIMPLE_DEBUG;
3270}
3271
3272/* Return true if S is a GIMPLE_DEBUG BIND statement.  */
3273
3274static inline bool
3275gimple_debug_bind_p (const_gimple s)
3276{
3277  if (is_gimple_debug (s))
3278    return s->gsbase.subcode == GIMPLE_DEBUG_BIND;
3279
3280  return false;
3281}
3282
3283/* Return the variable bound in a GIMPLE_DEBUG bind statement.  */
3284
3285static inline tree
3286gimple_debug_bind_get_var (gimple dbg)
3287{
3288  GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3289#ifdef ENABLE_CHECKING
3290  gcc_assert (gimple_debug_bind_p (dbg));
3291#endif
3292  return gimple_op (dbg, 0);
3293}
3294
3295/* Return the value bound to the variable in a GIMPLE_DEBUG bind
3296   statement.  */
3297
3298static inline tree
3299gimple_debug_bind_get_value (gimple dbg)
3300{
3301  GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3302#ifdef ENABLE_CHECKING
3303  gcc_assert (gimple_debug_bind_p (dbg));
3304#endif
3305  return gimple_op (dbg, 1);
3306}
3307
3308/* Return a pointer to the value bound to the variable in a
3309   GIMPLE_DEBUG bind statement.  */
3310
3311static inline tree *
3312gimple_debug_bind_get_value_ptr (gimple dbg)
3313{
3314  GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3315#ifdef ENABLE_CHECKING
3316  gcc_assert (gimple_debug_bind_p (dbg));
3317#endif
3318  return gimple_op_ptr (dbg, 1);
3319}
3320
3321/* Set the variable bound in a GIMPLE_DEBUG bind statement.  */
3322
3323static inline void
3324gimple_debug_bind_set_var (gimple dbg, tree var)
3325{
3326  GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3327#ifdef ENABLE_CHECKING
3328  gcc_assert (gimple_debug_bind_p (dbg));
3329#endif
3330  gimple_set_op (dbg, 0, var);
3331}
3332
3333/* Set the value bound to the variable in a GIMPLE_DEBUG bind
3334   statement.  */
3335
3336static inline void
3337gimple_debug_bind_set_value (gimple dbg, tree value)
3338{
3339  GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3340#ifdef ENABLE_CHECKING
3341  gcc_assert (gimple_debug_bind_p (dbg));
3342#endif
3343  gimple_set_op (dbg, 1, value);
3344}
3345
3346/* The second operand of a GIMPLE_DEBUG_BIND, when the value was
3347   optimized away.  */
3348#define GIMPLE_DEBUG_BIND_NOVALUE NULL_TREE /* error_mark_node */
3349
3350/* Remove the value bound to the variable in a GIMPLE_DEBUG bind
3351   statement.  */
3352
3353static inline void
3354gimple_debug_bind_reset_value (gimple dbg)
3355{
3356  GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3357#ifdef ENABLE_CHECKING
3358  gcc_assert (gimple_debug_bind_p (dbg));
3359#endif
3360  gimple_set_op (dbg, 1, GIMPLE_DEBUG_BIND_NOVALUE);
3361}
3362
3363/* Return true if the GIMPLE_DEBUG bind statement is bound to a
3364   value.  */
3365
3366static inline bool
3367gimple_debug_bind_has_value_p (gimple dbg)
3368{
3369  GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3370#ifdef ENABLE_CHECKING
3371  gcc_assert (gimple_debug_bind_p (dbg));
3372#endif
3373  return gimple_op (dbg, 1) != GIMPLE_DEBUG_BIND_NOVALUE;
3374}
3375
3376#undef GIMPLE_DEBUG_BIND_NOVALUE
3377
3378/* Return the body for the OMP statement GS.  */
3379
3380static inline gimple_seq
3381gimple_omp_body (gimple gs)
3382{
3383  return gs->omp.body;
3384}
3385
3386/* Set BODY to be the body for the OMP statement GS.  */
3387
3388static inline void
3389gimple_omp_set_body (gimple gs, gimple_seq body)
3390{
3391  gs->omp.body = body;
3392}
3393
3394
3395/* Return the name associated with OMP_CRITICAL statement GS.  */
3396
3397static inline tree
3398gimple_omp_critical_name (const_gimple gs)
3399{
3400  GIMPLE_CHECK (gs, GIMPLE_OMP_CRITICAL);
3401  return gs->gimple_omp_critical.name;
3402}
3403
3404
3405/* Return a pointer to the name associated with OMP critical statement GS.  */
3406
3407static inline tree *
3408gimple_omp_critical_name_ptr (gimple gs)
3409{
3410  GIMPLE_CHECK (gs, GIMPLE_OMP_CRITICAL);
3411  return &gs->gimple_omp_critical.name;
3412}
3413
3414
3415/* Set NAME to be the name associated with OMP critical statement GS.  */
3416
3417static inline void
3418gimple_omp_critical_set_name (gimple gs, tree name)
3419{
3420  GIMPLE_CHECK (gs, GIMPLE_OMP_CRITICAL);
3421  gs->gimple_omp_critical.name = name;
3422}
3423
3424
3425/* Return the clauses associated with OMP_FOR GS.  */
3426
3427static inline tree
3428gimple_omp_for_clauses (const_gimple gs)
3429{
3430  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3431  return gs->gimple_omp_for.clauses;
3432}
3433
3434
3435/* Return a pointer to the OMP_FOR GS.  */
3436
3437static inline tree *
3438gimple_omp_for_clauses_ptr (gimple gs)
3439{
3440  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3441  return &gs->gimple_omp_for.clauses;
3442}
3443
3444
3445/* Set CLAUSES to be the list of clauses associated with OMP_FOR GS.  */
3446
3447static inline void
3448gimple_omp_for_set_clauses (gimple gs, tree clauses)
3449{
3450  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3451  gs->gimple_omp_for.clauses = clauses;
3452}
3453
3454
3455/* Get the collapse count of OMP_FOR GS.  */
3456
3457static inline size_t
3458gimple_omp_for_collapse (gimple gs)
3459{
3460  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3461  return gs->gimple_omp_for.collapse;
3462}
3463
3464
3465/* Return the index variable for OMP_FOR GS.  */
3466
3467static inline tree
3468gimple_omp_for_index (const_gimple gs, size_t i)
3469{
3470  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3471  gcc_assert (i < gs->gimple_omp_for.collapse);
3472  return gs->gimple_omp_for.iter[i].index;
3473}
3474
3475
3476/* Return a pointer to the index variable for OMP_FOR GS.  */
3477
3478static inline tree *
3479gimple_omp_for_index_ptr (gimple gs, size_t i)
3480{
3481  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3482  gcc_assert (i < gs->gimple_omp_for.collapse);
3483  return &gs->gimple_omp_for.iter[i].index;
3484}
3485
3486
3487/* Set INDEX to be the index variable for OMP_FOR GS.  */
3488
3489static inline void
3490gimple_omp_for_set_index (gimple gs, size_t i, tree index)
3491{
3492  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3493  gcc_assert (i < gs->gimple_omp_for.collapse);
3494  gs->gimple_omp_for.iter[i].index = index;
3495}
3496
3497
3498/* Return the initial value for OMP_FOR GS.  */
3499
3500static inline tree
3501gimple_omp_for_initial (const_gimple gs, size_t i)
3502{
3503  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3504  gcc_assert (i < gs->gimple_omp_for.collapse);
3505  return gs->gimple_omp_for.iter[i].initial;
3506}
3507
3508
3509/* Return a pointer to the initial value for OMP_FOR GS.  */
3510
3511static inline tree *
3512gimple_omp_for_initial_ptr (gimple gs, size_t i)
3513{
3514  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3515  gcc_assert (i < gs->gimple_omp_for.collapse);
3516  return &gs->gimple_omp_for.iter[i].initial;
3517}
3518
3519
3520/* Set INITIAL to be the initial value for OMP_FOR GS.  */
3521
3522static inline void
3523gimple_omp_for_set_initial (gimple gs, size_t i, tree initial)
3524{
3525  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3526  gcc_assert (i < gs->gimple_omp_for.collapse);
3527  gs->gimple_omp_for.iter[i].initial = initial;
3528}
3529
3530
3531/* Return the final value for OMP_FOR GS.  */
3532
3533static inline tree
3534gimple_omp_for_final (const_gimple gs, size_t i)
3535{
3536  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3537  gcc_assert (i < gs->gimple_omp_for.collapse);
3538  return gs->gimple_omp_for.iter[i].final;
3539}
3540
3541
3542/* Return a pointer to the final value for OMP_FOR GS.  */
3543
3544static inline tree *
3545gimple_omp_for_final_ptr (gimple gs, size_t i)
3546{
3547  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3548  gcc_assert (i < gs->gimple_omp_for.collapse);
3549  return &gs->gimple_omp_for.iter[i].final;
3550}
3551
3552
3553/* Set FINAL to be the final value for OMP_FOR GS.  */
3554
3555static inline void
3556gimple_omp_for_set_final (gimple gs, size_t i, tree final)
3557{
3558  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3559  gcc_assert (i < gs->gimple_omp_for.collapse);
3560  gs->gimple_omp_for.iter[i].final = final;
3561}
3562
3563
3564/* Return the increment value for OMP_FOR GS.  */
3565
3566static inline tree
3567gimple_omp_for_incr (const_gimple gs, size_t i)
3568{
3569  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3570  gcc_assert (i < gs->gimple_omp_for.collapse);
3571  return gs->gimple_omp_for.iter[i].incr;
3572}
3573
3574
3575/* Return a pointer to the increment value for OMP_FOR GS.  */
3576
3577static inline tree *
3578gimple_omp_for_incr_ptr (gimple gs, size_t i)
3579{
3580  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3581  gcc_assert (i < gs->gimple_omp_for.collapse);
3582  return &gs->gimple_omp_for.iter[i].incr;
3583}
3584
3585
3586/* Set INCR to be the increment value for OMP_FOR GS.  */
3587
3588static inline void
3589gimple_omp_for_set_incr (gimple gs, size_t i, tree incr)
3590{
3591  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3592  gcc_assert (i < gs->gimple_omp_for.collapse);
3593  gs->gimple_omp_for.iter[i].incr = incr;
3594}
3595
3596
3597/* Return the sequence of statements to execute before the OMP_FOR
3598   statement GS starts.  */
3599
3600static inline gimple_seq
3601gimple_omp_for_pre_body (gimple gs)
3602{
3603  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3604  return gs->gimple_omp_for.pre_body;
3605}
3606
3607
3608/* Set PRE_BODY to be the sequence of statements to execute before the
3609   OMP_FOR statement GS starts.  */
3610
3611static inline void
3612gimple_omp_for_set_pre_body (gimple gs, gimple_seq pre_body)
3613{
3614  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3615  gs->gimple_omp_for.pre_body = pre_body;
3616}
3617
3618
3619/* Return the clauses associated with OMP_PARALLEL GS.  */
3620
3621static inline tree
3622gimple_omp_parallel_clauses (const_gimple gs)
3623{
3624  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3625  return gs->gimple_omp_parallel.clauses;
3626}
3627
3628
3629/* Return a pointer to the clauses associated with OMP_PARALLEL GS.  */
3630
3631static inline tree *
3632gimple_omp_parallel_clauses_ptr (gimple gs)
3633{
3634  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3635  return &gs->gimple_omp_parallel.clauses;
3636}
3637
3638
3639/* Set CLAUSES to be the list of clauses associated with OMP_PARALLEL
3640   GS.  */
3641
3642static inline void
3643gimple_omp_parallel_set_clauses (gimple gs, tree clauses)
3644{
3645  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3646  gs->gimple_omp_parallel.clauses = clauses;
3647}
3648
3649
3650/* Return the child function used to hold the body of OMP_PARALLEL GS.  */
3651
3652static inline tree
3653gimple_omp_parallel_child_fn (const_gimple gs)
3654{
3655  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3656  return gs->gimple_omp_parallel.child_fn;
3657}
3658
3659/* Return a pointer to the child function used to hold the body of
3660   OMP_PARALLEL GS.  */
3661
3662static inline tree *
3663gimple_omp_parallel_child_fn_ptr (gimple gs)
3664{
3665  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3666  return &gs->gimple_omp_parallel.child_fn;
3667}
3668
3669
3670/* Set CHILD_FN to be the child function for OMP_PARALLEL GS.  */
3671
3672static inline void
3673gimple_omp_parallel_set_child_fn (gimple gs, tree child_fn)
3674{
3675  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3676  gs->gimple_omp_parallel.child_fn = child_fn;
3677}
3678
3679
3680/* Return the artificial argument used to send variables and values
3681   from the parent to the children threads in OMP_PARALLEL GS.  */
3682
3683static inline tree
3684gimple_omp_parallel_data_arg (const_gimple gs)
3685{
3686  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3687  return gs->gimple_omp_parallel.data_arg;
3688}
3689
3690
3691/* Return a pointer to the data argument for OMP_PARALLEL GS.  */
3692
3693static inline tree *
3694gimple_omp_parallel_data_arg_ptr (gimple gs)
3695{
3696  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3697  return &gs->gimple_omp_parallel.data_arg;
3698}
3699
3700
3701/* Set DATA_ARG to be the data argument for OMP_PARALLEL GS.  */
3702
3703static inline void
3704gimple_omp_parallel_set_data_arg (gimple gs, tree data_arg)
3705{
3706  GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3707  gs->gimple_omp_parallel.data_arg = data_arg;
3708}
3709
3710
3711/* Return the clauses associated with OMP_TASK GS.  */
3712
3713static inline tree
3714gimple_omp_task_clauses (const_gimple gs)
3715{
3716  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3717  return gs->gimple_omp_parallel.clauses;
3718}
3719
3720
3721/* Return a pointer to the clauses associated with OMP_TASK GS.  */
3722
3723static inline tree *
3724gimple_omp_task_clauses_ptr (gimple gs)
3725{
3726  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3727  return &gs->gimple_omp_parallel.clauses;
3728}
3729
3730
3731/* Set CLAUSES to be the list of clauses associated with OMP_TASK
3732   GS.  */
3733
3734static inline void
3735gimple_omp_task_set_clauses (gimple gs, tree clauses)
3736{
3737  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3738  gs->gimple_omp_parallel.clauses = clauses;
3739}
3740
3741
3742/* Return the child function used to hold the body of OMP_TASK GS.  */
3743
3744static inline tree
3745gimple_omp_task_child_fn (const_gimple gs)
3746{
3747  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3748  return gs->gimple_omp_parallel.child_fn;
3749}
3750
3751/* Return a pointer to the child function used to hold the body of
3752   OMP_TASK GS.  */
3753
3754static inline tree *
3755gimple_omp_task_child_fn_ptr (gimple gs)
3756{
3757  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3758  return &gs->gimple_omp_parallel.child_fn;
3759}
3760
3761
3762/* Set CHILD_FN to be the child function for OMP_TASK GS.  */
3763
3764static inline void
3765gimple_omp_task_set_child_fn (gimple gs, tree child_fn)
3766{
3767  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3768  gs->gimple_omp_parallel.child_fn = child_fn;
3769}
3770
3771
3772/* Return the artificial argument used to send variables and values
3773   from the parent to the children threads in OMP_TASK GS.  */
3774
3775static inline tree
3776gimple_omp_task_data_arg (const_gimple gs)
3777{
3778  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3779  return gs->gimple_omp_parallel.data_arg;
3780}
3781
3782
3783/* Return a pointer to the data argument for OMP_TASK GS.  */
3784
3785static inline tree *
3786gimple_omp_task_data_arg_ptr (gimple gs)
3787{
3788  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3789  return &gs->gimple_omp_parallel.data_arg;
3790}
3791
3792
3793/* Set DATA_ARG to be the data argument for OMP_TASK GS.  */
3794
3795static inline void
3796gimple_omp_task_set_data_arg (gimple gs, tree data_arg)
3797{
3798  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3799  gs->gimple_omp_parallel.data_arg = data_arg;
3800}
3801
3802
3803/* Return the clauses associated with OMP_TASK GS.  */
3804
3805static inline tree
3806gimple_omp_taskreg_clauses (const_gimple gs)
3807{
3808  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
3809    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3810  return gs->gimple_omp_parallel.clauses;
3811}
3812
3813
3814/* Return a pointer to the clauses associated with OMP_TASK GS.  */
3815
3816static inline tree *
3817gimple_omp_taskreg_clauses_ptr (gimple gs)
3818{
3819  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
3820    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3821  return &gs->gimple_omp_parallel.clauses;
3822}
3823
3824
3825/* Set CLAUSES to be the list of clauses associated with OMP_TASK
3826   GS.  */
3827
3828static inline void
3829gimple_omp_taskreg_set_clauses (gimple gs, tree clauses)
3830{
3831  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
3832    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3833  gs->gimple_omp_parallel.clauses = clauses;
3834}
3835
3836
3837/* Return the child function used to hold the body of OMP_TASK GS.  */
3838
3839static inline tree
3840gimple_omp_taskreg_child_fn (const_gimple gs)
3841{
3842  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
3843    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3844  return gs->gimple_omp_parallel.child_fn;
3845}
3846
3847/* Return a pointer to the child function used to hold the body of
3848   OMP_TASK GS.  */
3849
3850static inline tree *
3851gimple_omp_taskreg_child_fn_ptr (gimple gs)
3852{
3853  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
3854    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3855  return &gs->gimple_omp_parallel.child_fn;
3856}
3857
3858
3859/* Set CHILD_FN to be the child function for OMP_TASK GS.  */
3860
3861static inline void
3862gimple_omp_taskreg_set_child_fn (gimple gs, tree child_fn)
3863{
3864  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
3865    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3866  gs->gimple_omp_parallel.child_fn = child_fn;
3867}
3868
3869
3870/* Return the artificial argument used to send variables and values
3871   from the parent to the children threads in OMP_TASK GS.  */
3872
3873static inline tree
3874gimple_omp_taskreg_data_arg (const_gimple gs)
3875{
3876  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
3877    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3878  return gs->gimple_omp_parallel.data_arg;
3879}
3880
3881
3882/* Return a pointer to the data argument for OMP_TASK GS.  */
3883
3884static inline tree *
3885gimple_omp_taskreg_data_arg_ptr (gimple gs)
3886{
3887  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
3888    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3889  return &gs->gimple_omp_parallel.data_arg;
3890}
3891
3892
3893/* Set DATA_ARG to be the data argument for OMP_TASK GS.  */
3894
3895static inline void
3896gimple_omp_taskreg_set_data_arg (gimple gs, tree data_arg)
3897{
3898  if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
3899    GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3900  gs->gimple_omp_parallel.data_arg = data_arg;
3901}
3902
3903
3904/* Return the copy function used to hold the body of OMP_TASK GS.  */
3905
3906static inline tree
3907gimple_omp_task_copy_fn (const_gimple gs)
3908{
3909  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3910  return gs->gimple_omp_task.copy_fn;
3911}
3912
3913/* Return a pointer to the copy function used to hold the body of
3914   OMP_TASK GS.  */
3915
3916static inline tree *
3917gimple_omp_task_copy_fn_ptr (gimple gs)
3918{
3919  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3920  return &gs->gimple_omp_task.copy_fn;
3921}
3922
3923
3924/* Set CHILD_FN to be the copy function for OMP_TASK GS.  */
3925
3926static inline void
3927gimple_omp_task_set_copy_fn (gimple gs, tree copy_fn)
3928{
3929  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3930  gs->gimple_omp_task.copy_fn = copy_fn;
3931}
3932
3933
3934/* Return size of the data block in bytes in OMP_TASK GS.  */
3935
3936static inline tree
3937gimple_omp_task_arg_size (const_gimple gs)
3938{
3939  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3940  return gs->gimple_omp_task.arg_size;
3941}
3942
3943
3944/* Return a pointer to the data block size for OMP_TASK GS.  */
3945
3946static inline tree *
3947gimple_omp_task_arg_size_ptr (gimple gs)
3948{
3949  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3950  return &gs->gimple_omp_task.arg_size;
3951}
3952
3953
3954/* Set ARG_SIZE to be the data block size for OMP_TASK GS.  */
3955
3956static inline void
3957gimple_omp_task_set_arg_size (gimple gs, tree arg_size)
3958{
3959  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3960  gs->gimple_omp_task.arg_size = arg_size;
3961}
3962
3963
3964/* Return align of the data block in bytes in OMP_TASK GS.  */
3965
3966static inline tree
3967gimple_omp_task_arg_align (const_gimple gs)
3968{
3969  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3970  return gs->gimple_omp_task.arg_align;
3971}
3972
3973
3974/* Return a pointer to the data block align for OMP_TASK GS.  */
3975
3976static inline tree *
3977gimple_omp_task_arg_align_ptr (gimple gs)
3978{
3979  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3980  return &gs->gimple_omp_task.arg_align;
3981}
3982
3983
3984/* Set ARG_SIZE to be the data block align for OMP_TASK GS.  */
3985
3986static inline void
3987gimple_omp_task_set_arg_align (gimple gs, tree arg_align)
3988{
3989  GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3990  gs->gimple_omp_task.arg_align = arg_align;
3991}
3992
3993
3994/* Return the clauses associated with OMP_SINGLE GS.  */
3995
3996static inline tree
3997gimple_omp_single_clauses (const_gimple gs)
3998{
3999  GIMPLE_CHECK (gs, GIMPLE_OMP_SINGLE);
4000  return gs->gimple_omp_single.clauses;
4001}
4002
4003
4004/* Return a pointer to the clauses associated with OMP_SINGLE GS.  */
4005
4006static inline tree *
4007gimple_omp_single_clauses_ptr (gimple gs)
4008{
4009  GIMPLE_CHECK (gs, GIMPLE_OMP_SINGLE);
4010  return &gs->gimple_omp_single.clauses;
4011}
4012
4013
4014/* Set CLAUSES to be the clauses associated with OMP_SINGLE GS.  */
4015
4016static inline void
4017gimple_omp_single_set_clauses (gimple gs, tree clauses)
4018{
4019  GIMPLE_CHECK (gs, GIMPLE_OMP_SINGLE);
4020  gs->gimple_omp_single.clauses = clauses;
4021}
4022
4023
4024/* Return the clauses associated with OMP_SECTIONS GS.  */
4025
4026static inline tree
4027gimple_omp_sections_clauses (const_gimple gs)
4028{
4029  GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
4030  return gs->gimple_omp_sections.clauses;
4031}
4032
4033
4034/* Return a pointer to the clauses associated with OMP_SECTIONS GS.  */
4035
4036static inline tree *
4037gimple_omp_sections_clauses_ptr (gimple gs)
4038{
4039  GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
4040  return &gs->gimple_omp_sections.clauses;
4041}
4042
4043
4044/* Set CLAUSES to be the set of clauses associated with OMP_SECTIONS
4045   GS.  */
4046
4047static inline void
4048gimple_omp_sections_set_clauses (gimple gs, tree clauses)
4049{
4050  GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
4051  gs->gimple_omp_sections.clauses = clauses;
4052}
4053
4054
4055/* Return the control variable associated with the GIMPLE_OMP_SECTIONS
4056   in GS.  */
4057
4058static inline tree
4059gimple_omp_sections_control (const_gimple gs)
4060{
4061  GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
4062  return gs->gimple_omp_sections.control;
4063}
4064
4065
4066/* Return a pointer to the clauses associated with the GIMPLE_OMP_SECTIONS
4067   GS.  */
4068
4069static inline tree *
4070gimple_omp_sections_control_ptr (gimple gs)
4071{
4072  GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
4073  return &gs->gimple_omp_sections.control;
4074}
4075
4076
4077/* Set CONTROL to be the set of clauses associated with the
4078   GIMPLE_OMP_SECTIONS in GS.  */
4079
4080static inline void
4081gimple_omp_sections_set_control (gimple gs, tree control)
4082{
4083  GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
4084  gs->gimple_omp_sections.control = control;
4085}
4086
4087
4088/* Set COND to be the condition code for OMP_FOR GS.  */
4089
4090static inline void
4091gimple_omp_for_set_cond (gimple gs, size_t i, enum tree_code cond)
4092{
4093  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
4094  gcc_assert (TREE_CODE_CLASS (cond) == tcc_comparison);
4095  gcc_assert (i < gs->gimple_omp_for.collapse);
4096  gs->gimple_omp_for.iter[i].cond = cond;
4097}
4098
4099
4100/* Return the condition code associated with OMP_FOR GS.  */
4101
4102static inline enum tree_code
4103gimple_omp_for_cond (const_gimple gs, size_t i)
4104{
4105  GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
4106  gcc_assert (i < gs->gimple_omp_for.collapse);
4107  return gs->gimple_omp_for.iter[i].cond;
4108}
4109
4110
4111/* Set the value being stored in an atomic store.  */
4112
4113static inline void
4114gimple_omp_atomic_store_set_val (gimple g, tree val)
4115{
4116  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_STORE);
4117  g->gimple_omp_atomic_store.val = val;
4118}
4119
4120
4121/* Return the value being stored in an atomic store.  */
4122
4123static inline tree
4124gimple_omp_atomic_store_val (const_gimple g)
4125{
4126  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_STORE);
4127  return g->gimple_omp_atomic_store.val;
4128}
4129
4130
4131/* Return a pointer to the value being stored in an atomic store.  */
4132
4133static inline tree *
4134gimple_omp_atomic_store_val_ptr (gimple g)
4135{
4136  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_STORE);
4137  return &g->gimple_omp_atomic_store.val;
4138}
4139
4140
4141/* Set the LHS of an atomic load.  */
4142
4143static inline void
4144gimple_omp_atomic_load_set_lhs (gimple g, tree lhs)
4145{
4146  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
4147  g->gimple_omp_atomic_load.lhs = lhs;
4148}
4149
4150
4151/* Get the LHS of an atomic load.  */
4152
4153static inline tree
4154gimple_omp_atomic_load_lhs (const_gimple g)
4155{
4156  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
4157  return g->gimple_omp_atomic_load.lhs;
4158}
4159
4160
4161/* Return a pointer to the LHS of an atomic load.  */
4162
4163static inline tree *
4164gimple_omp_atomic_load_lhs_ptr (gimple g)
4165{
4166  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
4167  return &g->gimple_omp_atomic_load.lhs;
4168}
4169
4170
4171/* Set the RHS of an atomic load.  */
4172
4173static inline void
4174gimple_omp_atomic_load_set_rhs (gimple g, tree rhs)
4175{
4176  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
4177  g->gimple_omp_atomic_load.rhs = rhs;
4178}
4179
4180
4181/* Get the RHS of an atomic load.  */
4182
4183static inline tree
4184gimple_omp_atomic_load_rhs (const_gimple g)
4185{
4186  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
4187  return g->gimple_omp_atomic_load.rhs;
4188}
4189
4190
4191/* Return a pointer to the RHS of an atomic load.  */
4192
4193static inline tree *
4194gimple_omp_atomic_load_rhs_ptr (gimple g)
4195{
4196  GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
4197  return &g->gimple_omp_atomic_load.rhs;
4198}
4199
4200
4201/* Get the definition of the control variable in a GIMPLE_OMP_CONTINUE.  */
4202
4203static inline tree
4204gimple_omp_continue_control_def (const_gimple g)
4205{
4206  GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
4207  return g->gimple_omp_continue.control_def;
4208}
4209
4210/* The same as above, but return the address.  */
4211
4212static inline tree *
4213gimple_omp_continue_control_def_ptr (gimple g)
4214{
4215  GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
4216  return &g->gimple_omp_continue.control_def;
4217}
4218
4219/* Set the definition of the control variable in a GIMPLE_OMP_CONTINUE.  */
4220
4221static inline void
4222gimple_omp_continue_set_control_def (gimple g, tree def)
4223{
4224  GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
4225  g->gimple_omp_continue.control_def = def;
4226}
4227
4228
4229/* Get the use of the control variable in a GIMPLE_OMP_CONTINUE.  */
4230
4231static inline tree
4232gimple_omp_continue_control_use (const_gimple g)
4233{
4234  GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
4235  return g->gimple_omp_continue.control_use;
4236}
4237
4238
4239/* The same as above, but return the address.  */
4240
4241static inline tree *
4242gimple_omp_continue_control_use_ptr (gimple g)
4243{
4244  GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
4245  return &g->gimple_omp_continue.control_use;
4246}
4247
4248
4249/* Set the use of the control variable in a GIMPLE_OMP_CONTINUE.  */
4250
4251static inline void
4252gimple_omp_continue_set_control_use (gimple g, tree use)
4253{
4254  GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
4255  g->gimple_omp_continue.control_use = use;
4256}
4257
4258
4259/* Return a pointer to the return value for GIMPLE_RETURN GS.  */
4260
4261static inline tree *
4262gimple_return_retval_ptr (const_gimple gs)
4263{
4264  GIMPLE_CHECK (gs, GIMPLE_RETURN);
4265  return gimple_op_ptr (gs, 0);
4266}
4267
4268/* Return the return value for GIMPLE_RETURN GS.  */
4269
4270static inline tree
4271gimple_return_retval (const_gimple gs)
4272{
4273  GIMPLE_CHECK (gs, GIMPLE_RETURN);
4274  return gimple_op (gs, 0);
4275}
4276
4277
4278/* Set RETVAL to be the return value for GIMPLE_RETURN GS.  */
4279
4280static inline void
4281gimple_return_set_retval (gimple gs, tree retval)
4282{
4283  GIMPLE_CHECK (gs, GIMPLE_RETURN);
4284  gimple_set_op (gs, 0, retval);
4285}
4286
4287
4288/* Returns true when the gimple statment STMT is any of the OpenMP types.  */
4289
4290#define CASE_GIMPLE_OMP				\
4291    case GIMPLE_OMP_PARALLEL:			\
4292    case GIMPLE_OMP_TASK:			\
4293    case GIMPLE_OMP_FOR:			\
4294    case GIMPLE_OMP_SECTIONS:			\
4295    case GIMPLE_OMP_SECTIONS_SWITCH:		\
4296    case GIMPLE_OMP_SINGLE:			\
4297    case GIMPLE_OMP_SECTION:			\
4298    case GIMPLE_OMP_MASTER:			\
4299    case GIMPLE_OMP_ORDERED:			\
4300    case GIMPLE_OMP_CRITICAL:			\
4301    case GIMPLE_OMP_RETURN:			\
4302    case GIMPLE_OMP_ATOMIC_LOAD:		\
4303    case GIMPLE_OMP_ATOMIC_STORE:		\
4304    case GIMPLE_OMP_CONTINUE
4305
4306static inline bool
4307is_gimple_omp (const_gimple stmt)
4308{
4309  switch (gimple_code (stmt))
4310    {
4311    CASE_GIMPLE_OMP:
4312      return true;
4313    default:
4314      return false;
4315    }
4316}
4317
4318
4319/* Returns TRUE if statement G is a GIMPLE_NOP.  */
4320
4321static inline bool
4322gimple_nop_p (const_gimple g)
4323{
4324  return gimple_code (g) == GIMPLE_NOP;
4325}
4326
4327
4328/* Return true if GS is a GIMPLE_RESX.  */
4329
4330static inline bool
4331is_gimple_resx (const_gimple gs)
4332{
4333  return gimple_code (gs) == GIMPLE_RESX;
4334}
4335
4336/* Return the predictor of GIMPLE_PREDICT statement GS.  */
4337
4338static inline enum br_predictor
4339gimple_predict_predictor (gimple gs)
4340{
4341  GIMPLE_CHECK (gs, GIMPLE_PREDICT);
4342  return (enum br_predictor) (gs->gsbase.subcode & ~GF_PREDICT_TAKEN);
4343}
4344
4345
4346/* Set the predictor of GIMPLE_PREDICT statement GS to PREDICT.  */
4347
4348static inline void
4349gimple_predict_set_predictor (gimple gs, enum br_predictor predictor)
4350{
4351  GIMPLE_CHECK (gs, GIMPLE_PREDICT);
4352  gs->gsbase.subcode = (gs->gsbase.subcode & GF_PREDICT_TAKEN)
4353		       | (unsigned) predictor;
4354}
4355
4356
4357/* Return the outcome of GIMPLE_PREDICT statement GS.  */
4358
4359static inline enum prediction
4360gimple_predict_outcome (gimple gs)
4361{
4362  GIMPLE_CHECK (gs, GIMPLE_PREDICT);
4363  return (gs->gsbase.subcode & GF_PREDICT_TAKEN) ? TAKEN : NOT_TAKEN;
4364}
4365
4366
4367/* Set the outcome of GIMPLE_PREDICT statement GS to OUTCOME.  */
4368
4369static inline void
4370gimple_predict_set_outcome (gimple gs, enum prediction outcome)
4371{
4372  GIMPLE_CHECK (gs, GIMPLE_PREDICT);
4373  if (outcome == TAKEN)
4374    gs->gsbase.subcode |= GF_PREDICT_TAKEN;
4375  else
4376    gs->gsbase.subcode &= ~GF_PREDICT_TAKEN;
4377}
4378
4379
4380/* Return the type of the main expression computed by STMT.  Return
4381   void_type_node if the statement computes nothing.  */
4382
4383static inline tree
4384gimple_expr_type (const_gimple stmt)
4385{
4386  enum gimple_code code = gimple_code (stmt);
4387
4388  if (code == GIMPLE_ASSIGN || code == GIMPLE_CALL)
4389    {
4390      tree type;
4391      /* In general we want to pass out a type that can be substituted
4392         for both the RHS and the LHS types if there is a possibly
4393	 useless conversion involved.  That means returning the
4394	 original RHS type as far as we can reconstruct it.  */
4395      if (code == GIMPLE_CALL)
4396	type = gimple_call_return_type (stmt);
4397      else
4398	switch (gimple_assign_rhs_code (stmt))
4399	  {
4400	  case POINTER_PLUS_EXPR:
4401	    type = TREE_TYPE (gimple_assign_rhs1 (stmt));
4402	    break;
4403
4404	  default:
4405	    /* As fallback use the type of the LHS.  */
4406	    type = TREE_TYPE (gimple_get_lhs (stmt));
4407	    break;
4408	  }
4409      return type;
4410    }
4411  else if (code == GIMPLE_COND)
4412    return boolean_type_node;
4413  else
4414    return void_type_node;
4415}
4416
4417
4418/* Return a new iterator pointing to GIMPLE_SEQ's first statement.  */
4419
4420static inline gimple_stmt_iterator
4421gsi_start (gimple_seq seq)
4422{
4423  gimple_stmt_iterator i;
4424
4425  i.ptr = gimple_seq_first (seq);
4426  i.seq = seq;
4427  i.bb = (i.ptr && i.ptr->stmt) ? gimple_bb (i.ptr->stmt) : NULL;
4428
4429  return i;
4430}
4431
4432
4433/* Return a new iterator pointing to the first statement in basic block BB.  */
4434
4435static inline gimple_stmt_iterator
4436gsi_start_bb (basic_block bb)
4437{
4438  gimple_stmt_iterator i;
4439  gimple_seq seq;
4440
4441  seq = bb_seq (bb);
4442  i.ptr = gimple_seq_first (seq);
4443  i.seq = seq;
4444  i.bb = bb;
4445
4446  return i;
4447}
4448
4449
4450/* Return a new iterator initially pointing to GIMPLE_SEQ's last statement.  */
4451
4452static inline gimple_stmt_iterator
4453gsi_last (gimple_seq seq)
4454{
4455  gimple_stmt_iterator i;
4456
4457  i.ptr = gimple_seq_last (seq);
4458  i.seq = seq;
4459  i.bb = (i.ptr && i.ptr->stmt) ? gimple_bb (i.ptr->stmt) : NULL;
4460
4461  return i;
4462}
4463
4464
4465/* Return a new iterator pointing to the last statement in basic block BB.  */
4466
4467static inline gimple_stmt_iterator
4468gsi_last_bb (basic_block bb)
4469{
4470  gimple_stmt_iterator i;
4471  gimple_seq seq;
4472
4473  seq = bb_seq (bb);
4474  i.ptr = gimple_seq_last (seq);
4475  i.seq = seq;
4476  i.bb = bb;
4477
4478  return i;
4479}
4480
4481
4482/* Return true if I is at the end of its sequence.  */
4483
4484static inline bool
4485gsi_end_p (gimple_stmt_iterator i)
4486{
4487  return i.ptr == NULL;
4488}
4489
4490
4491/* Return true if I is one statement before the end of its sequence.  */
4492
4493static inline bool
4494gsi_one_before_end_p (gimple_stmt_iterator i)
4495{
4496  return i.ptr != NULL && i.ptr->next == NULL;
4497}
4498
4499
4500/* Advance the iterator to the next gimple statement.  */
4501
4502static inline void
4503gsi_next (gimple_stmt_iterator *i)
4504{
4505  i->ptr = i->ptr->next;
4506}
4507
4508/* Advance the iterator to the previous gimple statement.  */
4509
4510static inline void
4511gsi_prev (gimple_stmt_iterator *i)
4512{
4513  i->ptr = i->ptr->prev;
4514}
4515
4516/* Return the current stmt.  */
4517
4518static inline gimple
4519gsi_stmt (gimple_stmt_iterator i)
4520{
4521  return i.ptr->stmt;
4522}
4523
4524/* Return a block statement iterator that points to the first non-label
4525   statement in block BB.  */
4526
4527static inline gimple_stmt_iterator
4528gsi_after_labels (basic_block bb)
4529{
4530  gimple_stmt_iterator gsi = gsi_start_bb (bb);
4531
4532  while (!gsi_end_p (gsi) && gimple_code (gsi_stmt (gsi)) == GIMPLE_LABEL)
4533    gsi_next (&gsi);
4534
4535  return gsi;
4536}
4537
4538/* Advance the iterator to the next non-debug gimple statement.  */
4539
4540static inline void
4541gsi_next_nondebug (gimple_stmt_iterator *i)
4542{
4543  do
4544    {
4545      gsi_next (i);
4546    }
4547  while (!gsi_end_p (*i) && is_gimple_debug (gsi_stmt (*i)));
4548}
4549
4550/* Advance the iterator to the next non-debug gimple statement.  */
4551
4552static inline void
4553gsi_prev_nondebug (gimple_stmt_iterator *i)
4554{
4555  do
4556    {
4557      gsi_prev (i);
4558    }
4559  while (!gsi_end_p (*i) && is_gimple_debug (gsi_stmt (*i)));
4560}
4561
4562/* Return a new iterator pointing to the first non-debug statement in
4563   basic block BB.  */
4564
4565static inline gimple_stmt_iterator
4566gsi_start_nondebug_bb (basic_block bb)
4567{
4568  gimple_stmt_iterator i = gsi_start_bb (bb);
4569
4570  if (!gsi_end_p (i) && is_gimple_debug (gsi_stmt (i)))
4571    gsi_next_nondebug (&i);
4572
4573  return i;
4574}
4575
4576/* Return a new iterator pointing to the last non-debug statement in
4577   basic block BB.  */
4578
4579static inline gimple_stmt_iterator
4580gsi_last_nondebug_bb (basic_block bb)
4581{
4582  gimple_stmt_iterator i = gsi_last_bb (bb);
4583
4584  if (!gsi_end_p (i) && is_gimple_debug (gsi_stmt (i)))
4585    gsi_prev_nondebug (&i);
4586
4587  return i;
4588}
4589
4590/* Return a pointer to the current stmt.
4591
4592  NOTE: You may want to use gsi_replace on the iterator itself,
4593  as this performs additional bookkeeping that will not be done
4594  if you simply assign through a pointer returned by gsi_stmt_ptr.  */
4595
4596static inline gimple *
4597gsi_stmt_ptr (gimple_stmt_iterator *i)
4598{
4599  return &i->ptr->stmt;
4600}
4601
4602
4603/* Return the basic block associated with this iterator.  */
4604
4605static inline basic_block
4606gsi_bb (gimple_stmt_iterator i)
4607{
4608  return i.bb;
4609}
4610
4611
4612/* Return the sequence associated with this iterator.  */
4613
4614static inline gimple_seq
4615gsi_seq (gimple_stmt_iterator i)
4616{
4617  return i.seq;
4618}
4619
4620
4621enum gsi_iterator_update
4622{
4623  GSI_NEW_STMT,		/* Only valid when single statement is added, move
4624			   iterator to it.  */
4625  GSI_SAME_STMT,	/* Leave the iterator at the same statement.  */
4626  GSI_CONTINUE_LINKING	/* Move iterator to whatever position is suitable
4627			   for linking other statements in the same
4628			   direction.  */
4629};
4630
4631/* In gimple-iterator.c  */
4632gimple_stmt_iterator gsi_start_phis (basic_block);
4633gimple_seq gsi_split_seq_after (gimple_stmt_iterator);
4634gimple_seq gsi_split_seq_before (gimple_stmt_iterator *);
4635void gsi_replace (gimple_stmt_iterator *, gimple, bool);
4636void gsi_insert_before (gimple_stmt_iterator *, gimple,
4637			enum gsi_iterator_update);
4638void gsi_insert_before_without_update (gimple_stmt_iterator *, gimple,
4639                                       enum gsi_iterator_update);
4640void gsi_insert_seq_before (gimple_stmt_iterator *, gimple_seq,
4641                            enum gsi_iterator_update);
4642void gsi_insert_seq_before_without_update (gimple_stmt_iterator *, gimple_seq,
4643                                           enum gsi_iterator_update);
4644void gsi_insert_after (gimple_stmt_iterator *, gimple,
4645		       enum gsi_iterator_update);
4646void gsi_insert_after_without_update (gimple_stmt_iterator *, gimple,
4647                                      enum gsi_iterator_update);
4648void gsi_insert_seq_after (gimple_stmt_iterator *, gimple_seq,
4649			   enum gsi_iterator_update);
4650void gsi_insert_seq_after_without_update (gimple_stmt_iterator *, gimple_seq,
4651                                          enum gsi_iterator_update);
4652void gsi_remove (gimple_stmt_iterator *, bool);
4653gimple_stmt_iterator gsi_for_stmt (gimple);
4654void gsi_move_after (gimple_stmt_iterator *, gimple_stmt_iterator *);
4655void gsi_move_before (gimple_stmt_iterator *, gimple_stmt_iterator *);
4656void gsi_move_to_bb_end (gimple_stmt_iterator *, struct basic_block_def *);
4657void gsi_insert_on_edge (edge, gimple);
4658void gsi_insert_seq_on_edge (edge, gimple_seq);
4659basic_block gsi_insert_on_edge_immediate (edge, gimple);
4660basic_block gsi_insert_seq_on_edge_immediate (edge, gimple_seq);
4661void gsi_commit_one_edge_insert (edge, basic_block *);
4662void gsi_commit_edge_inserts (void);
4663gimple gimple_call_copy_skip_args (gimple, bitmap);
4664
4665
4666/* Convenience routines to walk all statements of a gimple function.
4667   Note that this is useful exclusively before the code is converted
4668   into SSA form.  Once the program is in SSA form, the standard
4669   operand interface should be used to analyze/modify statements.  */
4670struct walk_stmt_info
4671{
4672  /* Points to the current statement being walked.  */
4673  gimple_stmt_iterator gsi;
4674
4675  /* Additional data that the callback functions may want to carry
4676     through the recursion.  */
4677  void *info;
4678
4679  /* Pointer map used to mark visited tree nodes when calling
4680     walk_tree on each operand.  If set to NULL, duplicate tree nodes
4681     will be visited more than once.  */
4682  struct pointer_set_t *pset;
4683
4684  /* Indicates whether the operand being examined may be replaced
4685     with something that matches is_gimple_val (if true) or something
4686     slightly more complicated (if false).  "Something" technically
4687     means the common subset of is_gimple_lvalue and is_gimple_rhs,
4688     but we never try to form anything more complicated than that, so
4689     we don't bother checking.
4690
4691     Also note that CALLBACK should update this flag while walking the
4692     sub-expressions of a statement.  For instance, when walking the
4693     statement 'foo (&var)', the flag VAL_ONLY will initially be set
4694     to true, however, when walking &var, the operand of that
4695     ADDR_EXPR does not need to be a GIMPLE value.  */
4696  bool val_only;
4697
4698  /* True if we are currently walking the LHS of an assignment.  */
4699  bool is_lhs;
4700
4701  /* Optional.  Set to true by the callback functions if they made any
4702     changes.  */
4703  bool changed;
4704
4705  /* True if we're interested in location information.  */
4706  bool want_locations;
4707
4708  /* Operand returned by the callbacks.  This is set when calling
4709     walk_gimple_seq.  If the walk_stmt_fn or walk_tree_fn callback
4710     returns non-NULL, this field will contain the tree returned by
4711     the last callback.  */
4712  tree callback_result;
4713};
4714
4715/* Callback for walk_gimple_stmt.  Called for every statement found
4716   during traversal.  The first argument points to the statement to
4717   walk.  The second argument is a flag that the callback sets to
4718   'true' if it the callback handled all the operands and
4719   sub-statements of the statement (the default value of this flag is
4720   'false').  The third argument is an anonymous pointer to data
4721   to be used by the callback.  */
4722typedef tree (*walk_stmt_fn) (gimple_stmt_iterator *, bool *,
4723			      struct walk_stmt_info *);
4724
4725gimple walk_gimple_seq (gimple_seq, walk_stmt_fn, walk_tree_fn,
4726		        struct walk_stmt_info *);
4727tree walk_gimple_stmt (gimple_stmt_iterator *, walk_stmt_fn, walk_tree_fn,
4728		       struct walk_stmt_info *);
4729tree walk_gimple_op (gimple, walk_tree_fn, struct walk_stmt_info *);
4730
4731#ifdef GATHER_STATISTICS
4732/* Enum and arrays used for allocation stats.  Keep in sync with
4733   gimple.c:gimple_alloc_kind_names.  */
4734enum gimple_alloc_kind
4735{
4736  gimple_alloc_kind_assign,	/* Assignments.  */
4737  gimple_alloc_kind_phi,	/* PHI nodes.  */
4738  gimple_alloc_kind_cond,	/* Conditionals.  */
4739  gimple_alloc_kind_seq,	/* Sequences.  */
4740  gimple_alloc_kind_rest,	/* Everything else.  */
4741  gimple_alloc_kind_all
4742};
4743
4744extern int gimple_alloc_counts[];
4745extern int gimple_alloc_sizes[];
4746
4747/* Return the allocation kind for a given stmt CODE.  */
4748static inline enum gimple_alloc_kind
4749gimple_alloc_kind (enum gimple_code code)
4750{
4751  switch (code)
4752    {
4753      case GIMPLE_ASSIGN:
4754	return gimple_alloc_kind_assign;
4755      case GIMPLE_PHI:
4756	return gimple_alloc_kind_phi;
4757      case GIMPLE_COND:
4758	return gimple_alloc_kind_cond;
4759      default:
4760	return gimple_alloc_kind_rest;
4761    }
4762}
4763#endif /* GATHER_STATISTICS */
4764
4765extern void dump_gimple_statistics (void);
4766
4767#endif  /* GCC_GIMPLE_H */
4768