1 /* Gimple IR definitions.
3 Copyright 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
4 Contributed by Aldy Hernandez <aldyh@redhat.com>
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
25 #include "pointer-set.h"
30 #include "basic-block.h"
31 #include "tree-ssa-operands.h"
32 #include "tree-ssa-alias.h"
33 #include "internal-fn.h"
35 struct gimple_seq_node_d;
36 typedef struct gimple_seq_node_d *gimple_seq_node;
37 typedef const struct gimple_seq_node_d *const_gimple_seq_node;
39 /* For each block, the PHI nodes that need to be rewritten are stored into
41 typedef VEC(gimple, heap) *gimple_vec;
42 DEF_VEC_P (gimple_vec);
43 DEF_VEC_ALLOC_P (gimple_vec, heap);
46 #define DEFGSCODE(SYM, STRING, STRUCT) SYM,
49 LAST_AND_UNUSED_GIMPLE_CODE
52 extern const char *const gimple_code_name[];
53 extern const unsigned char gimple_rhs_class_table[];
55 /* Error out if a gimple tuple is addressed incorrectly. */
56 #if defined ENABLE_GIMPLE_CHECKING
57 #define gcc_gimple_checking_assert(EXPR) gcc_assert (EXPR)
58 extern void gimple_check_failed (const_gimple, const char *, int, \
59 const char *, enum gimple_code, \
60 enum tree_code) ATTRIBUTE_NORETURN;
62 #define GIMPLE_CHECK(GS, CODE) \
64 const_gimple __gs = (GS); \
65 if (gimple_code (__gs) != (CODE)) \
66 gimple_check_failed (__gs, __FILE__, __LINE__, __FUNCTION__, \
67 (CODE), ERROR_MARK); \
69 #else /* not ENABLE_GIMPLE_CHECKING */
70 #define gcc_gimple_checking_assert(EXPR) ((void)(0 && (EXPR)))
71 #define GIMPLE_CHECK(GS, CODE) (void)0
74 /* Class of GIMPLE expressions suitable for the RHS of assignments. See
75 get_gimple_rhs_class. */
78 GIMPLE_INVALID_RHS, /* The expression cannot be used on the RHS. */
79 GIMPLE_TERNARY_RHS, /* The expression is a ternary operation. */
80 GIMPLE_BINARY_RHS, /* The expression is a binary operation. */
81 GIMPLE_UNARY_RHS, /* The expression is a unary operation. */
82 GIMPLE_SINGLE_RHS /* The expression is a single object (an SSA
83 name, a _DECL, a _REF, etc. */
86 /* Specific flags for individual GIMPLE statements. These flags are
87 always stored in gimple_statement_base.subcode and they may only be
88 defined for statement codes that do not use sub-codes.
90 Values for the masks can overlap as long as the overlapping values
91 are never used in the same statement class.
93 The maximum mask value that can be defined is 1 << 15 (i.e., each
94 statement code can hold up to 16 bitflags).
96 Keep this list sorted. */
98 GF_ASM_INPUT = 1 << 0,
99 GF_ASM_VOLATILE = 1 << 1,
100 GF_CALL_CANNOT_INLINE = 1 << 0,
101 GF_CALL_FROM_THUNK = 1 << 1,
102 GF_CALL_RETURN_SLOT_OPT = 1 << 2,
103 GF_CALL_TAILCALL = 1 << 3,
104 GF_CALL_VA_ARG_PACK = 1 << 4,
105 GF_CALL_NOTHROW = 1 << 5,
106 GF_CALL_ALLOCA_FOR_VAR = 1 << 6,
107 GF_CALL_INTERNAL = 1 << 7,
108 GF_OMP_PARALLEL_COMBINED = 1 << 0,
110 /* True on an GIMPLE_OMP_RETURN statement if the return does not require
111 a thread synchronization via some sort of barrier. The exact barrier
112 that would otherwise be emitted is dependent on the OMP statement with
113 which this return is associated. */
114 GF_OMP_RETURN_NOWAIT = 1 << 0,
116 GF_OMP_SECTION_LAST = 1 << 0,
117 GF_PREDICT_TAKEN = 1 << 15
120 /* Currently, there are only two types of gimple debug stmt. Others are
121 envisioned, for example, to enable the generation of is_stmt notes
122 in line number information, to mark sequence points, etc. This
123 subcode is to be used to tell them apart. */
124 enum gimple_debug_subcode {
125 GIMPLE_DEBUG_BIND = 0,
126 GIMPLE_DEBUG_SOURCE_BIND = 1
129 /* Masks for selecting a pass local flag (PLF) to work on. These
130 masks are used by gimple_set_plf and gimple_plf. */
136 /* A node in a gimple_seq_d. */
137 struct GTY((chain_next ("%h.next"), chain_prev ("%h.prev"))) gimple_seq_node_d {
139 struct gimple_seq_node_d *prev;
140 struct gimple_seq_node_d *next;
143 /* A double-linked sequence of gimple statements. */
144 struct 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;
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;
157 /* Return the first node in GIMPLE sequence S. */
159 static inline gimple_seq_node
160 gimple_seq_first (const_gimple_seq s)
162 return s ? s->first : NULL;
166 /* Return the first statement in GIMPLE sequence S. */
169 gimple_seq_first_stmt (const_gimple_seq s)
171 gimple_seq_node n = gimple_seq_first (s);
172 return (n) ? n->stmt : NULL;
176 /* Return the last node in GIMPLE sequence S. */
178 static inline gimple_seq_node
179 gimple_seq_last (const_gimple_seq s)
181 return s ? s->last : NULL;
185 /* Return the last statement in GIMPLE sequence S. */
188 gimple_seq_last_stmt (const_gimple_seq s)
190 gimple_seq_node n = gimple_seq_last (s);
191 return (n) ? n->stmt : NULL;
195 /* Set the last node in GIMPLE sequence S to LAST. */
198 gimple_seq_set_last (gimple_seq s, gimple_seq_node last)
204 /* Set the first node in GIMPLE sequence S to FIRST. */
207 gimple_seq_set_first (gimple_seq s, gimple_seq_node first)
213 /* Return true if GIMPLE sequence S is empty. */
216 gimple_seq_empty_p (const_gimple_seq s)
218 return s == NULL || s->first == NULL;
222 void gimple_seq_add_stmt (gimple_seq *, gimple);
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. */
229 void gimplify_seq_add_stmt (gimple_seq *, gimple);
231 /* Allocate a new sequence and initialize its first element with STMT. */
233 static inline gimple_seq
234 gimple_seq_alloc_with_stmt (gimple stmt)
236 gimple_seq seq = NULL;
237 gimple_seq_add_stmt (&seq, stmt);
242 /* Returns the sequence of statements in BB. */
244 static inline gimple_seq
245 bb_seq (const_basic_block bb)
247 return (!(bb->flags & BB_RTL) && bb->il.gimple) ? bb->il.gimple->seq : NULL;
251 /* Sets the sequence of statements in BB to SEQ. */
254 set_bb_seq (basic_block bb, gimple_seq seq)
256 gcc_checking_assert (!(bb->flags & BB_RTL));
257 bb->il.gimple->seq = seq;
260 /* Iterator object for GIMPLE statement sequences. */
264 /* Sequence node holding the current statement. */
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. */
273 } gimple_stmt_iterator;
276 /* Data structure definitions for GIMPLE tuples. NOTE: word markers
277 are for 64 bit hosts. */
279 struct GTY(()) gimple_statement_base {
281 Main identifying code for a tuple. */
282 ENUM_BITFIELD(gimple_code) code : 8;
284 /* Nonzero if a warning should not be emitted on this tuple. */
285 unsigned int no_warning : 1;
287 /* Nonzero if this tuple has been visited. Passes are responsible
288 for clearing this bit before using it. */
289 unsigned int visited : 1;
291 /* Nonzero if this tuple represents a non-temporal move. */
292 unsigned int nontemporal_move : 1;
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;
301 /* Nonzero if this statement has been modified and needs to have its
302 operands rescanned. */
303 unsigned modified : 1;
305 /* Nonzero if this statement contains volatile operands. */
306 unsigned has_volatile_ops : 1;
308 /* Padding to get subcode to 16 bit alignment. */
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
315 unsigned int subcode : 16;
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. */
323 Locus information for debug info. */
326 /* Number of operands in this tuple. */
330 Basic block holding this statement. */
331 struct basic_block_def *bb;
334 Lexical block holding this statement. */
339 /* Base structure for tuples with operands. */
341 struct GTY(()) gimple_statement_with_ops_base
344 struct gimple_statement_base gsbase;
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;
356 /* Statements that take register operands. */
358 struct GTY(()) gimple_statement_with_ops
361 struct gimple_statement_with_ops_base opbase;
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];
371 /* Base for statements that take both memory and register operands. */
373 struct GTY(()) gimple_statement_with_memory_ops_base
376 struct gimple_statement_with_ops_base opbase;
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;
386 /* Statements that take both memory and register operands. */
388 struct GTY(()) gimple_statement_with_memory_ops
391 struct gimple_statement_with_memory_ops_base membase;
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];
401 /* Call statements that take both memory and register operands. */
403 struct GTY(()) gimple_statement_call
406 struct gimple_statement_with_memory_ops_base membase;
409 struct pt_solution call_used;
410 struct pt_solution call_clobbered;
413 union GTY ((desc ("%1.membase.opbase.gsbase.subcode & GF_CALL_INTERNAL"))) {
414 tree GTY ((tag ("0"))) fntype;
415 enum internal_fn GTY ((tag ("GF_CALL_INTERNAL"))) internal_fn;
419 Operand vector. NOTE! This must always be the last field
420 of this structure. In particular, this means that this
421 structure cannot be embedded inside another one. */
422 tree GTY((length ("%h.membase.opbase.gsbase.num_ops"))) op[1];
426 /* OpenMP statements (#pragma omp). */
428 struct GTY(()) gimple_statement_omp {
430 struct gimple_statement_base gsbase;
439 struct GTY(()) gimple_statement_bind {
441 struct gimple_statement_base gsbase;
444 Variables declared in this scope. */
448 This is different than the BLOCK field in gimple_statement_base,
449 which is analogous to TREE_BLOCK (i.e., the lexical block holding
450 this statement). This field is the equivalent of BIND_EXPR_BLOCK
451 in tree land (i.e., the lexical scope defined by this bind). See
462 struct GTY(()) gimple_statement_catch {
464 struct gimple_statement_base gsbase;
474 /* GIMPLE_EH_FILTER */
476 struct GTY(()) gimple_statement_eh_filter {
478 struct gimple_statement_base gsbase;
490 /* GIMPLE_EH_MUST_NOT_THROW */
492 struct GTY(()) gimple_statement_eh_mnt {
494 struct gimple_statement_base gsbase;
496 /* [ WORD 5 ] Abort function decl. */
502 struct GTY(()) gimple_statement_phi {
504 struct gimple_statement_base gsbase;
514 struct phi_arg_d GTY ((length ("%h.nargs"))) args[1];
518 /* GIMPLE_RESX, GIMPLE_EH_DISPATCH */
520 struct GTY(()) gimple_statement_eh_ctrl
523 struct gimple_statement_base gsbase;
526 Exception region number. */
533 struct GTY(()) gimple_statement_try {
535 struct gimple_statement_base gsbase;
538 Expression to evaluate. */
542 Cleanup expression. */
546 /* Kind of GIMPLE_TRY statements. */
547 enum gimple_try_flags
550 GIMPLE_TRY_CATCH = 1 << 0,
553 GIMPLE_TRY_FINALLY = 1 << 1,
554 GIMPLE_TRY_KIND = GIMPLE_TRY_CATCH | GIMPLE_TRY_FINALLY,
556 /* Analogous to TRY_CATCH_IS_CLEANUP. */
557 GIMPLE_TRY_CATCH_IS_CLEANUP = 1 << 2
560 /* GIMPLE_WITH_CLEANUP_EXPR */
562 struct GTY(()) gimple_statement_wce {
564 struct gimple_statement_base gsbase;
566 /* Subcode: CLEANUP_EH_ONLY. True if the cleanup should only be
567 executed if an exception is thrown, not on normal exit of its
568 scope. This flag is analogous to the CLEANUP_EH_ONLY flag
572 Cleanup expression. */
579 struct GTY(()) gimple_statement_asm
582 struct gimple_statement_with_memory_ops_base membase;
585 __asm__ statement. */
589 Number of inputs, outputs, clobbers, labels. */
596 Operand vector. NOTE! This must always be the last field
597 of this structure. In particular, this means that this
598 structure cannot be embedded inside another one. */
599 tree GTY((length ("%h.membase.opbase.gsbase.num_ops"))) op[1];
602 /* GIMPLE_OMP_CRITICAL */
604 struct GTY(()) gimple_statement_omp_critical {
606 struct gimple_statement_omp omp;
609 Critical section name. */
614 struct GTY(()) gimple_omp_for_iter {
615 /* Condition code. */
618 /* Index variable. */
633 struct GTY(()) gimple_statement_omp_for {
635 struct gimple_statement_omp omp;
641 Number of elements in iter array. */
645 struct gimple_omp_for_iter * GTY((length ("%h.collapse"))) iter;
648 Pre-body evaluated before the loop body begins. */
653 /* GIMPLE_OMP_PARALLEL */
655 struct GTY(()) gimple_statement_omp_parallel {
657 struct gimple_statement_omp omp;
664 Child function holding the body of the parallel region. */
668 Shared data argument. */
673 /* GIMPLE_OMP_TASK */
675 struct GTY(()) gimple_statement_omp_task {
677 struct gimple_statement_omp_parallel par;
680 Child function holding firstprivate initialization if needed. */
684 Size and alignment in bytes of the argument data block. */
690 /* GIMPLE_OMP_SECTION */
691 /* Uses struct gimple_statement_omp. */
694 /* GIMPLE_OMP_SECTIONS */
696 struct GTY(()) gimple_statement_omp_sections {
698 struct gimple_statement_omp omp;
704 The control variable used for deciding which of the sections to
709 /* GIMPLE_OMP_CONTINUE.
711 Note: This does not inherit from gimple_statement_omp, because we
712 do not need the body field. */
714 struct GTY(()) gimple_statement_omp_continue {
716 struct gimple_statement_base gsbase;
725 /* GIMPLE_OMP_SINGLE */
727 struct GTY(()) gimple_statement_omp_single {
729 struct gimple_statement_omp omp;
736 /* GIMPLE_OMP_ATOMIC_LOAD.
737 Note: This is based on gimple_statement_base, not g_s_omp, because g_s_omp
738 contains a sequence, which we don't need here. */
740 struct GTY(()) gimple_statement_omp_atomic_load {
742 struct gimple_statement_base gsbase;
748 /* GIMPLE_OMP_ATOMIC_STORE.
749 See note on GIMPLE_OMP_ATOMIC_LOAD. */
751 struct GTY(()) gimple_statement_omp_atomic_store {
753 struct gimple_statement_base gsbase;
759 #define DEFGSSTRUCT(SYM, STRUCT, HAS_TREE_OP) SYM,
760 enum gimple_statement_structure_enum {
761 #include "gsstruct.def"
767 /* Define the overall contents of a gimple tuple. It may be any of the
768 structures declared above for various types of tuples. */
770 union GTY ((desc ("gimple_statement_structure (&%h)"), variable_size)) gimple_statement_d {
771 struct gimple_statement_base GTY ((tag ("GSS_BASE"))) gsbase;
772 struct gimple_statement_with_ops GTY ((tag ("GSS_WITH_OPS"))) gsops;
773 struct gimple_statement_with_memory_ops_base GTY ((tag ("GSS_WITH_MEM_OPS_BASE"))) gsmembase;
774 struct gimple_statement_with_memory_ops GTY ((tag ("GSS_WITH_MEM_OPS"))) gsmem;
775 struct gimple_statement_call GTY ((tag ("GSS_CALL"))) gimple_call;
776 struct gimple_statement_omp GTY ((tag ("GSS_OMP"))) omp;
777 struct gimple_statement_bind GTY ((tag ("GSS_BIND"))) gimple_bind;
778 struct gimple_statement_catch GTY ((tag ("GSS_CATCH"))) gimple_catch;
779 struct gimple_statement_eh_filter GTY ((tag ("GSS_EH_FILTER"))) gimple_eh_filter;
780 struct gimple_statement_eh_mnt GTY ((tag ("GSS_EH_MNT"))) gimple_eh_mnt;
781 struct gimple_statement_phi GTY ((tag ("GSS_PHI"))) gimple_phi;
782 struct gimple_statement_eh_ctrl GTY ((tag ("GSS_EH_CTRL"))) gimple_eh_ctrl;
783 struct gimple_statement_try GTY ((tag ("GSS_TRY"))) gimple_try;
784 struct gimple_statement_wce GTY ((tag ("GSS_WCE"))) gimple_wce;
785 struct gimple_statement_asm GTY ((tag ("GSS_ASM"))) gimple_asm;
786 struct gimple_statement_omp_critical GTY ((tag ("GSS_OMP_CRITICAL"))) gimple_omp_critical;
787 struct gimple_statement_omp_for GTY ((tag ("GSS_OMP_FOR"))) gimple_omp_for;
788 struct gimple_statement_omp_parallel GTY ((tag ("GSS_OMP_PARALLEL"))) gimple_omp_parallel;
789 struct gimple_statement_omp_task GTY ((tag ("GSS_OMP_TASK"))) gimple_omp_task;
790 struct gimple_statement_omp_sections GTY ((tag ("GSS_OMP_SECTIONS"))) gimple_omp_sections;
791 struct gimple_statement_omp_single GTY ((tag ("GSS_OMP_SINGLE"))) gimple_omp_single;
792 struct gimple_statement_omp_continue GTY ((tag ("GSS_OMP_CONTINUE"))) gimple_omp_continue;
793 struct gimple_statement_omp_atomic_load GTY ((tag ("GSS_OMP_ATOMIC_LOAD"))) gimple_omp_atomic_load;
794 struct gimple_statement_omp_atomic_store GTY ((tag ("GSS_OMP_ATOMIC_STORE"))) gimple_omp_atomic_store;
799 /* Offset in bytes to the location of the operand vector.
800 Zero if there is no operand vector for this tuple structure. */
801 extern size_t const gimple_ops_offset_[];
803 /* Map GIMPLE codes to GSS codes. */
804 extern enum gimple_statement_structure_enum const gss_for_code_[];
806 /* This variable holds the currently expanded gimple statement for purposes
807 of comminucating the profile info to the builtin expanders. */
808 extern gimple currently_expanding_gimple_stmt;
810 gimple gimple_build_return (tree);
812 gimple gimple_build_assign_stat (tree, tree MEM_STAT_DECL);
813 #define gimple_build_assign(l,r) gimple_build_assign_stat (l, r MEM_STAT_INFO)
815 void extract_ops_from_tree_1 (tree, enum tree_code *, tree *, tree *, tree *);
817 gimple gimple_build_assign_with_ops_stat (enum tree_code, tree, tree,
818 tree, tree MEM_STAT_DECL);
819 #define gimple_build_assign_with_ops(c,o1,o2,o3) \
820 gimple_build_assign_with_ops_stat (c, o1, o2, o3, NULL_TREE MEM_STAT_INFO)
821 #define gimple_build_assign_with_ops3(c,o1,o2,o3,o4) \
822 gimple_build_assign_with_ops_stat (c, o1, o2, o3, o4 MEM_STAT_INFO)
824 gimple gimple_build_debug_bind_stat (tree, tree, gimple MEM_STAT_DECL);
825 #define gimple_build_debug_bind(var,val,stmt) \
826 gimple_build_debug_bind_stat ((var), (val), (stmt) MEM_STAT_INFO)
827 gimple gimple_build_debug_source_bind_stat (tree, tree, gimple MEM_STAT_DECL);
828 #define gimple_build_debug_source_bind(var,val,stmt) \
829 gimple_build_debug_source_bind_stat ((var), (val), (stmt) MEM_STAT_INFO)
831 gimple gimple_build_call_vec (tree, VEC(tree, heap) *);
832 gimple gimple_build_call (tree, unsigned, ...);
833 gimple gimple_build_call_internal (enum internal_fn, unsigned, ...);
834 gimple gimple_build_call_internal_vec (enum internal_fn, VEC(tree, heap) *);
835 gimple gimple_build_call_from_tree (tree);
836 gimple gimplify_assign (tree, tree, gimple_seq *);
837 gimple gimple_build_cond (enum tree_code, tree, tree, tree, tree);
838 gimple gimple_build_label (tree label);
839 gimple gimple_build_goto (tree dest);
840 gimple gimple_build_nop (void);
841 gimple gimple_build_bind (tree, gimple_seq, tree);
842 gimple gimple_build_asm_vec (const char *, VEC(tree,gc) *, VEC(tree,gc) *,
843 VEC(tree,gc) *, VEC(tree,gc) *);
844 gimple gimple_build_catch (tree, gimple_seq);
845 gimple gimple_build_eh_filter (tree, gimple_seq);
846 gimple gimple_build_eh_must_not_throw (tree);
847 gimple gimple_build_try (gimple_seq, gimple_seq, enum gimple_try_flags);
848 gimple gimple_build_wce (gimple_seq);
849 gimple gimple_build_resx (int);
850 gimple gimple_build_eh_dispatch (int);
851 gimple gimple_build_switch_nlabels (unsigned, tree, tree);
852 gimple gimple_build_switch (unsigned, tree, tree, ...);
853 gimple gimple_build_switch_vec (tree, tree, VEC(tree,heap) *);
854 gimple gimple_build_omp_parallel (gimple_seq, tree, tree, tree);
855 gimple gimple_build_omp_task (gimple_seq, tree, tree, tree, tree, tree, tree);
856 gimple gimple_build_omp_for (gimple_seq, tree, size_t, gimple_seq);
857 gimple gimple_build_omp_critical (gimple_seq, tree);
858 gimple gimple_build_omp_section (gimple_seq);
859 gimple gimple_build_omp_continue (tree, tree);
860 gimple gimple_build_omp_master (gimple_seq);
861 gimple gimple_build_omp_return (bool);
862 gimple gimple_build_omp_ordered (gimple_seq);
863 gimple gimple_build_omp_sections (gimple_seq, tree);
864 gimple gimple_build_omp_sections_switch (void);
865 gimple gimple_build_omp_single (gimple_seq, tree);
866 gimple gimple_build_cdt (tree, tree);
867 gimple gimple_build_omp_atomic_load (tree, tree);
868 gimple gimple_build_omp_atomic_store (tree);
869 gimple gimple_build_predict (enum br_predictor, enum prediction);
870 enum gimple_statement_structure_enum gss_for_assign (enum tree_code);
871 void sort_case_labels (VEC(tree,heap) *);
872 void gimple_set_body (tree, gimple_seq);
873 gimple_seq gimple_body (tree);
874 bool gimple_has_body_p (tree);
875 gimple_seq gimple_seq_alloc (void);
876 void gimple_seq_free (gimple_seq);
877 void gimple_seq_add_seq (gimple_seq *, gimple_seq);
878 gimple_seq gimple_seq_copy (gimple_seq);
879 bool gimple_call_same_target_p (const_gimple, const_gimple);
880 int gimple_call_flags (const_gimple);
881 int gimple_call_return_flags (const_gimple);
882 int gimple_call_arg_flags (const_gimple, unsigned);
883 void gimple_call_reset_alias_info (gimple);
884 bool gimple_assign_copy_p (gimple);
885 bool gimple_assign_ssa_name_copy_p (gimple);
886 bool gimple_assign_unary_nop_p (gimple);
887 void gimple_set_bb (gimple, struct basic_block_def *);
888 void gimple_assign_set_rhs_from_tree (gimple_stmt_iterator *, tree);
889 void gimple_assign_set_rhs_with_ops_1 (gimple_stmt_iterator *, enum tree_code,
891 tree gimple_get_lhs (const_gimple);
892 void gimple_set_lhs (gimple, tree);
893 void gimple_replace_lhs (gimple, tree);
894 gimple gimple_copy (gimple);
895 void gimple_set_modified (gimple, bool);
896 void gimple_cond_get_ops_from_tree (tree, enum tree_code *, tree *, tree *);
897 gimple gimple_build_cond_from_tree (tree, tree, tree);
898 void gimple_cond_set_condition_from_tree (gimple, tree);
899 bool gimple_has_side_effects (const_gimple);
900 bool gimple_rhs_has_side_effects (const_gimple);
901 bool gimple_could_trap_p (gimple);
902 bool gimple_could_trap_p_1 (gimple, bool, bool);
903 bool gimple_assign_rhs_could_trap_p (gimple);
904 void gimple_regimplify_operands (gimple, gimple_stmt_iterator *);
905 bool empty_body_p (gimple_seq);
906 unsigned get_gimple_rhs_num_ops (enum tree_code);
907 #define gimple_alloc(c, n) gimple_alloc_stat (c, n MEM_STAT_INFO)
908 gimple gimple_alloc_stat (enum gimple_code, unsigned MEM_STAT_DECL);
909 const char *gimple_decl_printable_name (tree, int);
910 bool gimple_fold_call (gimple_stmt_iterator *gsi, bool inplace);
911 tree gimple_get_virt_method_for_binfo (HOST_WIDE_INT, tree, tree *);
912 void gimple_adjust_this_by_delta (gimple_stmt_iterator *, tree);
913 tree gimple_extract_devirt_binfo_from_cst (tree);
914 /* Returns true iff T is a valid GIMPLE statement. */
915 extern bool is_gimple_stmt (tree);
917 /* Returns true iff TYPE is a valid type for a scalar register variable. */
918 extern bool is_gimple_reg_type (tree);
919 /* Returns true iff T is a scalar register variable. */
920 extern bool is_gimple_reg (tree);
921 /* Returns true iff T is any sort of variable. */
922 extern bool is_gimple_variable (tree);
923 /* Returns true iff T is any sort of symbol. */
924 extern bool is_gimple_id (tree);
925 /* Returns true iff T is a variable or an INDIRECT_REF (of a variable). */
926 extern bool is_gimple_min_lval (tree);
927 /* Returns true iff T is something whose address can be taken. */
928 extern bool is_gimple_addressable (tree);
929 /* Returns true iff T is any valid GIMPLE lvalue. */
930 extern bool is_gimple_lvalue (tree);
932 /* Returns true iff T is a GIMPLE address. */
933 bool is_gimple_address (const_tree);
934 /* Returns true iff T is a GIMPLE invariant address. */
935 bool is_gimple_invariant_address (const_tree);
936 /* Returns true iff T is a GIMPLE invariant address at interprocedural
938 bool is_gimple_ip_invariant_address (const_tree);
939 /* Returns true iff T is a valid GIMPLE constant. */
940 bool is_gimple_constant (const_tree);
941 /* Returns true iff T is a GIMPLE restricted function invariant. */
942 extern bool is_gimple_min_invariant (const_tree);
943 /* Returns true iff T is a GIMPLE restricted interprecodural invariant. */
944 extern bool is_gimple_ip_invariant (const_tree);
945 /* Returns true iff T is a GIMPLE rvalue. */
946 extern bool is_gimple_val (tree);
947 /* Returns true iff T is a GIMPLE asm statement input. */
948 extern bool is_gimple_asm_val (tree);
949 /* Returns true iff T is a valid address operand of a MEM_REF. */
950 bool is_gimple_mem_ref_addr (tree);
951 /* Returns true iff T is a valid rhs for a MODIFY_EXPR where the LHS is a
952 GIMPLE temporary, a renamed user variable, or something else,
954 extern bool is_gimple_reg_rhs (tree);
955 extern bool is_gimple_mem_rhs (tree);
957 /* Returns true iff T is a valid if-statement condition. */
958 extern bool is_gimple_condexpr (tree);
960 /* Returns true iff T is a variable that does not need to live in memory. */
961 extern bool is_gimple_non_addressable (tree t);
963 /* Returns true iff T is a valid call address expression. */
964 extern bool is_gimple_call_addr (tree);
965 /* If T makes a function call, returns the CALL_EXPR operand. */
966 extern tree get_call_expr_in (tree t);
968 extern void recalculate_side_effects (tree);
969 extern bool gimple_compare_field_offset (tree, tree);
970 extern tree gimple_register_type (tree);
971 extern tree gimple_register_canonical_type (tree);
972 extern void print_gimple_types_stats (void);
973 extern void free_gimple_type_tables (void);
974 extern tree gimple_unsigned_type (tree);
975 extern tree gimple_signed_type (tree);
976 extern alias_set_type gimple_get_alias_set (tree);
977 extern void count_uses_and_derefs (tree, gimple, unsigned *, unsigned *,
979 extern bool walk_stmt_load_store_addr_ops (gimple, void *,
980 bool (*)(gimple, tree, void *),
981 bool (*)(gimple, tree, void *),
982 bool (*)(gimple, tree, void *));
983 extern bool walk_stmt_load_store_ops (gimple, void *,
984 bool (*)(gimple, tree, void *),
985 bool (*)(gimple, tree, void *));
986 extern bool gimple_ior_addresses_taken (bitmap, gimple);
987 extern bool gimple_call_builtin_p (gimple, enum built_in_function);
988 extern bool gimple_asm_clobbers_memory_p (const_gimple);
991 extern tree create_tmp_var_raw (tree, const char *);
992 extern tree create_tmp_var_name (const char *);
993 extern tree create_tmp_var (tree, const char *);
994 extern tree create_tmp_reg (tree, const char *);
995 extern tree get_initialized_tmp_var (tree, gimple_seq *, gimple_seq *);
996 extern tree get_formal_tmp_var (tree, gimple_seq *);
997 extern void declare_vars (tree, gimple, bool);
998 extern void annotate_all_with_location (gimple_seq, location_t);
1000 /* Validation of GIMPLE expressions. Note that these predicates only check
1001 the basic form of the expression, they don't recurse to make sure that
1002 underlying nodes are also of the right form. */
1003 typedef bool (*gimple_predicate)(tree);
1006 /* FIXME we should deduce this from the predicate. */
1008 fb_none = 0, /* Do not generate a temporary. */
1010 fb_rvalue = 1, /* Generate an rvalue to hold the result of a
1011 gimplified expression. */
1013 fb_lvalue = 2, /* Generate an lvalue to hold the result of a
1014 gimplified expression. */
1016 fb_mayfail = 4, /* Gimplification may fail. Error issued
1018 fb_either= fb_rvalue | fb_lvalue
1021 typedef int fallback_t;
1023 enum gimplify_status {
1024 GS_ERROR = -2, /* Something Bad Seen. */
1025 GS_UNHANDLED = -1, /* A langhook result for "I dunno". */
1026 GS_OK = 0, /* We did something, maybe more to do. */
1027 GS_ALL_DONE = 1 /* The expression is fully gimplified. */
1032 struct gimplify_ctx *prev_context;
1034 VEC(gimple,heap) *bind_expr_stack;
1036 gimple_seq conditional_cleanups;
1040 VEC(tree,heap) *case_labels;
1041 /* The formal temporary table. Should this be persistent? */
1047 bool allow_rhs_cond_expr;
1050 extern enum gimplify_status gimplify_expr (tree *, gimple_seq *, gimple_seq *,
1051 bool (*) (tree), fallback_t);
1052 extern void gimplify_type_sizes (tree, gimple_seq *);
1053 extern void gimplify_one_sizepos (tree *, gimple_seq *);
1054 extern bool gimplify_stmt (tree *, gimple_seq *);
1055 extern gimple gimplify_body (tree *, tree, bool);
1056 extern void push_gimplify_context (struct gimplify_ctx *);
1057 extern void pop_gimplify_context (gimple);
1058 extern void gimplify_and_add (tree, gimple_seq *);
1060 /* Miscellaneous helpers. */
1061 extern void gimple_add_tmp_var (tree);
1062 extern gimple gimple_current_bind_expr (void);
1063 extern VEC(gimple, heap) *gimple_bind_expr_stack (void);
1064 extern tree voidify_wrapper_expr (tree, tree);
1065 extern tree build_and_jump (tree *);
1066 extern tree force_labels_r (tree *, int *, void *);
1067 extern enum gimplify_status gimplify_va_arg_expr (tree *, gimple_seq *,
1069 struct gimplify_omp_ctx;
1070 extern void omp_firstprivatize_variable (struct gimplify_omp_ctx *, tree);
1071 extern tree gimple_boolify (tree);
1072 extern gimple_predicate rhs_predicate_for (tree);
1073 extern tree canonicalize_cond_expr_cond (tree);
1076 extern tree omp_reduction_init (tree, tree);
1078 /* In tree-nested.c. */
1079 extern void lower_nested_functions (tree);
1080 extern void insert_field_into_struct (tree, tree);
1082 /* In gimplify.c. */
1083 extern void gimplify_function_tree (tree);
1085 /* In cfgexpand.c. */
1086 extern tree gimple_assign_rhs_to_tree (gimple);
1089 extern bool validate_gimple_arglist (const_gimple, ...);
1092 extern bool tree_ssa_useless_type_conversion (tree);
1093 extern tree tree_ssa_strip_useless_type_conversions (tree);
1094 extern bool useless_type_conversion_p (tree, tree);
1095 extern bool types_compatible_p (tree, tree);
1097 /* Return the code for GIMPLE statement G. */
1099 static inline enum gimple_code
1100 gimple_code (const_gimple g)
1102 return g->gsbase.code;
1106 /* Return the GSS code used by a GIMPLE code. */
1108 static inline enum gimple_statement_structure_enum
1109 gss_for_code (enum gimple_code code)
1111 gcc_gimple_checking_assert ((unsigned int)code < LAST_AND_UNUSED_GIMPLE_CODE);
1112 return gss_for_code_[code];
1116 /* Return which GSS code is used by GS. */
1118 static inline enum gimple_statement_structure_enum
1119 gimple_statement_structure (gimple gs)
1121 return gss_for_code (gimple_code (gs));
1125 /* Return true if statement G has sub-statements. This is only true for
1126 High GIMPLE statements. */
1129 gimple_has_substatements (gimple g)
1131 switch (gimple_code (g))
1135 case GIMPLE_EH_FILTER:
1137 case GIMPLE_OMP_FOR:
1138 case GIMPLE_OMP_MASTER:
1139 case GIMPLE_OMP_ORDERED:
1140 case GIMPLE_OMP_SECTION:
1141 case GIMPLE_OMP_PARALLEL:
1142 case GIMPLE_OMP_TASK:
1143 case GIMPLE_OMP_SECTIONS:
1144 case GIMPLE_OMP_SINGLE:
1145 case GIMPLE_OMP_CRITICAL:
1146 case GIMPLE_WITH_CLEANUP_EXPR:
1155 /* Return the basic block holding statement G. */
1157 static inline struct basic_block_def *
1158 gimple_bb (const_gimple g)
1160 return g->gsbase.bb;
1164 /* Return the lexical scope block holding statement G. */
1167 gimple_block (const_gimple g)
1169 return g->gsbase.block;
1173 /* Set BLOCK to be the lexical scope block holding statement G. */
1176 gimple_set_block (gimple g, tree block)
1178 g->gsbase.block = block;
1182 /* Return location information for statement G. */
1184 static inline location_t
1185 gimple_location (const_gimple g)
1187 return g->gsbase.location;
1190 /* Return pointer to location information for statement G. */
1192 static inline const location_t *
1193 gimple_location_ptr (const_gimple g)
1195 return &g->gsbase.location;
1199 /* Set location information for statement G. */
1202 gimple_set_location (gimple g, location_t location)
1204 g->gsbase.location = location;
1208 /* Return true if G contains location information. */
1211 gimple_has_location (const_gimple g)
1213 return gimple_location (g) != UNKNOWN_LOCATION;
1217 /* Return the file name of the location of STMT. */
1219 static inline const char *
1220 gimple_filename (const_gimple stmt)
1222 return LOCATION_FILE (gimple_location (stmt));
1226 /* Return the line number of the location of STMT. */
1229 gimple_lineno (const_gimple stmt)
1231 return LOCATION_LINE (gimple_location (stmt));
1235 /* Determine whether SEQ is a singleton. */
1238 gimple_seq_singleton_p (gimple_seq seq)
1240 return ((gimple_seq_first (seq) != NULL)
1241 && (gimple_seq_first (seq) == gimple_seq_last (seq)));
1244 /* Return true if no warnings should be emitted for statement STMT. */
1247 gimple_no_warning_p (const_gimple stmt)
1249 return stmt->gsbase.no_warning;
1252 /* Set the no_warning flag of STMT to NO_WARNING. */
1255 gimple_set_no_warning (gimple stmt, bool no_warning)
1257 stmt->gsbase.no_warning = (unsigned) no_warning;
1260 /* Set the visited status on statement STMT to VISITED_P. */
1263 gimple_set_visited (gimple stmt, bool visited_p)
1265 stmt->gsbase.visited = (unsigned) visited_p;
1269 /* Return the visited status for statement STMT. */
1272 gimple_visited_p (gimple stmt)
1274 return stmt->gsbase.visited;
1278 /* Set pass local flag PLF on statement STMT to VAL_P. */
1281 gimple_set_plf (gimple stmt, enum plf_mask plf, bool val_p)
1284 stmt->gsbase.plf |= (unsigned int) plf;
1286 stmt->gsbase.plf &= ~((unsigned int) plf);
1290 /* Return the value of pass local flag PLF on statement STMT. */
1292 static inline unsigned int
1293 gimple_plf (gimple stmt, enum plf_mask plf)
1295 return stmt->gsbase.plf & ((unsigned int) plf);
1299 /* Set the UID of statement. */
1302 gimple_set_uid (gimple g, unsigned uid)
1304 g->gsbase.uid = uid;
1308 /* Return the UID of statement. */
1310 static inline unsigned
1311 gimple_uid (const_gimple g)
1313 return g->gsbase.uid;
1317 /* Return true if GIMPLE statement G has register or memory operands. */
1320 gimple_has_ops (const_gimple g)
1322 return gimple_code (g) >= GIMPLE_COND && gimple_code (g) <= GIMPLE_RETURN;
1326 /* Return true if GIMPLE statement G has memory operands. */
1329 gimple_has_mem_ops (const_gimple g)
1331 return gimple_code (g) >= GIMPLE_ASSIGN && gimple_code (g) <= GIMPLE_RETURN;
1335 /* Return the set of DEF operands for statement G. */
1337 static inline struct def_optype_d *
1338 gimple_def_ops (const_gimple g)
1340 if (!gimple_has_ops (g))
1342 return g->gsops.opbase.def_ops;
1346 /* Set DEF to be the set of DEF operands for statement G. */
1349 gimple_set_def_ops (gimple g, struct def_optype_d *def)
1351 gcc_gimple_checking_assert (gimple_has_ops (g));
1352 g->gsops.opbase.def_ops = def;
1356 /* Return the set of USE operands for statement G. */
1358 static inline struct use_optype_d *
1359 gimple_use_ops (const_gimple g)
1361 if (!gimple_has_ops (g))
1363 return g->gsops.opbase.use_ops;
1367 /* Set USE to be the set of USE operands for statement G. */
1370 gimple_set_use_ops (gimple g, struct use_optype_d *use)
1372 gcc_gimple_checking_assert (gimple_has_ops (g));
1373 g->gsops.opbase.use_ops = use;
1377 /* Return the set of VUSE operand for statement G. */
1379 static inline use_operand_p
1380 gimple_vuse_op (const_gimple g)
1382 struct use_optype_d *ops;
1383 if (!gimple_has_mem_ops (g))
1384 return NULL_USE_OPERAND_P;
1385 ops = g->gsops.opbase.use_ops;
1387 && USE_OP_PTR (ops)->use == &g->gsmembase.vuse)
1388 return USE_OP_PTR (ops);
1389 return NULL_USE_OPERAND_P;
1392 /* Return the set of VDEF operand for statement G. */
1394 static inline def_operand_p
1395 gimple_vdef_op (const_gimple g)
1397 struct def_optype_d *ops;
1398 if (!gimple_has_mem_ops (g))
1399 return NULL_DEF_OPERAND_P;
1400 ops = g->gsops.opbase.def_ops;
1402 && DEF_OP_PTR (ops) == &g->gsmembase.vdef)
1403 return DEF_OP_PTR (ops);
1404 return NULL_DEF_OPERAND_P;
1408 /* Return the single VUSE operand of the statement G. */
1411 gimple_vuse (const_gimple g)
1413 if (!gimple_has_mem_ops (g))
1415 return g->gsmembase.vuse;
1418 /* Return the single VDEF operand of the statement G. */
1421 gimple_vdef (const_gimple g)
1423 if (!gimple_has_mem_ops (g))
1425 return g->gsmembase.vdef;
1428 /* Return the single VUSE operand of the statement G. */
1430 static inline tree *
1431 gimple_vuse_ptr (gimple g)
1433 if (!gimple_has_mem_ops (g))
1435 return &g->gsmembase.vuse;
1438 /* Return the single VDEF operand of the statement G. */
1440 static inline tree *
1441 gimple_vdef_ptr (gimple g)
1443 if (!gimple_has_mem_ops (g))
1445 return &g->gsmembase.vdef;
1448 /* Set the single VUSE operand of the statement G. */
1451 gimple_set_vuse (gimple g, tree vuse)
1453 gcc_gimple_checking_assert (gimple_has_mem_ops (g));
1454 g->gsmembase.vuse = vuse;
1457 /* Set the single VDEF operand of the statement G. */
1460 gimple_set_vdef (gimple g, tree vdef)
1462 gcc_gimple_checking_assert (gimple_has_mem_ops (g));
1463 g->gsmembase.vdef = vdef;
1467 /* Return true if statement G has operands and the modified field has
1471 gimple_modified_p (const_gimple g)
1473 return (gimple_has_ops (g)) ? (bool) g->gsbase.modified : false;
1477 /* Return the tree code for the expression computed by STMT. This is
1478 only valid for GIMPLE_COND, GIMPLE_CALL and GIMPLE_ASSIGN. For
1479 GIMPLE_CALL, return CALL_EXPR as the expression code for
1480 consistency. This is useful when the caller needs to deal with the
1481 three kinds of computation that GIMPLE supports. */
1483 static inline enum tree_code
1484 gimple_expr_code (const_gimple stmt)
1486 enum gimple_code code = gimple_code (stmt);
1487 if (code == GIMPLE_ASSIGN || code == GIMPLE_COND)
1488 return (enum tree_code) stmt->gsbase.subcode;
1491 gcc_gimple_checking_assert (code == GIMPLE_CALL);
1497 /* Mark statement S as modified, and update it. */
1500 update_stmt (gimple s)
1502 if (gimple_has_ops (s))
1504 gimple_set_modified (s, true);
1505 update_stmt_operands (s);
1509 /* Update statement S if it has been optimized. */
1512 update_stmt_if_modified (gimple s)
1514 if (gimple_modified_p (s))
1515 update_stmt_operands (s);
1518 /* Return true if statement STMT contains volatile operands. */
1521 gimple_has_volatile_ops (const_gimple stmt)
1523 if (gimple_has_mem_ops (stmt))
1524 return stmt->gsbase.has_volatile_ops;
1530 /* Set the HAS_VOLATILE_OPS flag to VOLATILEP. */
1533 gimple_set_has_volatile_ops (gimple stmt, bool volatilep)
1535 if (gimple_has_mem_ops (stmt))
1536 stmt->gsbase.has_volatile_ops = (unsigned) volatilep;
1540 /* Return true if statement STMT may access memory. */
1543 gimple_references_memory_p (gimple stmt)
1545 return gimple_has_mem_ops (stmt) && gimple_vuse (stmt);
1549 /* Return the subcode for OMP statement S. */
1551 static inline unsigned
1552 gimple_omp_subcode (const_gimple s)
1554 gcc_gimple_checking_assert (gimple_code (s) >= GIMPLE_OMP_ATOMIC_LOAD
1555 && gimple_code (s) <= GIMPLE_OMP_SINGLE);
1556 return s->gsbase.subcode;
1559 /* Set the subcode for OMP statement S to SUBCODE. */
1562 gimple_omp_set_subcode (gimple s, unsigned int subcode)
1564 /* We only have 16 bits for the subcode. Assert that we are not
1566 gcc_gimple_checking_assert (subcode < (1 << 16));
1567 s->gsbase.subcode = subcode;
1570 /* Set the nowait flag on OMP_RETURN statement S. */
1573 gimple_omp_return_set_nowait (gimple s)
1575 GIMPLE_CHECK (s, GIMPLE_OMP_RETURN);
1576 s->gsbase.subcode |= GF_OMP_RETURN_NOWAIT;
1580 /* Return true if OMP return statement G has the GF_OMP_RETURN_NOWAIT
1584 gimple_omp_return_nowait_p (const_gimple g)
1586 GIMPLE_CHECK (g, GIMPLE_OMP_RETURN);
1587 return (gimple_omp_subcode (g) & GF_OMP_RETURN_NOWAIT) != 0;
1591 /* Return true if OMP section statement G has the GF_OMP_SECTION_LAST
1595 gimple_omp_section_last_p (const_gimple g)
1597 GIMPLE_CHECK (g, GIMPLE_OMP_SECTION);
1598 return (gimple_omp_subcode (g) & GF_OMP_SECTION_LAST) != 0;
1602 /* Set the GF_OMP_SECTION_LAST flag on G. */
1605 gimple_omp_section_set_last (gimple g)
1607 GIMPLE_CHECK (g, GIMPLE_OMP_SECTION);
1608 g->gsbase.subcode |= GF_OMP_SECTION_LAST;
1612 /* Return true if OMP parallel statement G has the
1613 GF_OMP_PARALLEL_COMBINED flag set. */
1616 gimple_omp_parallel_combined_p (const_gimple g)
1618 GIMPLE_CHECK (g, GIMPLE_OMP_PARALLEL);
1619 return (gimple_omp_subcode (g) & GF_OMP_PARALLEL_COMBINED) != 0;
1623 /* Set the GF_OMP_PARALLEL_COMBINED field in G depending on the boolean
1624 value of COMBINED_P. */
1627 gimple_omp_parallel_set_combined_p (gimple g, bool combined_p)
1629 GIMPLE_CHECK (g, GIMPLE_OMP_PARALLEL);
1631 g->gsbase.subcode |= GF_OMP_PARALLEL_COMBINED;
1633 g->gsbase.subcode &= ~GF_OMP_PARALLEL_COMBINED;
1637 /* Return the number of operands for statement GS. */
1639 static inline unsigned
1640 gimple_num_ops (const_gimple gs)
1642 return gs->gsbase.num_ops;
1646 /* Set the number of operands for statement GS. */
1649 gimple_set_num_ops (gimple gs, unsigned num_ops)
1651 gs->gsbase.num_ops = num_ops;
1655 /* Return the array of operands for statement GS. */
1657 static inline tree *
1658 gimple_ops (gimple gs)
1662 /* All the tuples have their operand vector at the very bottom
1663 of the structure. Note that those structures that do not
1664 have an operand vector have a zero offset. */
1665 off = gimple_ops_offset_[gimple_statement_structure (gs)];
1666 gcc_gimple_checking_assert (off != 0);
1668 return (tree *) ((char *) gs + off);
1672 /* Return operand I for statement GS. */
1675 gimple_op (const_gimple gs, unsigned i)
1677 if (gimple_has_ops (gs))
1679 gcc_gimple_checking_assert (i < gimple_num_ops (gs));
1680 return gimple_ops (CONST_CAST_GIMPLE (gs))[i];
1686 /* Return a pointer to operand I for statement GS. */
1688 static inline tree *
1689 gimple_op_ptr (const_gimple gs, unsigned i)
1691 if (gimple_has_ops (gs))
1693 gcc_gimple_checking_assert (i < gimple_num_ops (gs));
1694 return gimple_ops (CONST_CAST_GIMPLE (gs)) + i;
1700 /* Set operand I of statement GS to OP. */
1703 gimple_set_op (gimple gs, unsigned i, tree op)
1705 gcc_gimple_checking_assert (gimple_has_ops (gs) && i < gimple_num_ops (gs));
1707 /* Note. It may be tempting to assert that OP matches
1708 is_gimple_operand, but that would be wrong. Different tuples
1709 accept slightly different sets of tree operands. Each caller
1710 should perform its own validation. */
1711 gimple_ops (gs)[i] = op;
1714 /* Return true if GS is a GIMPLE_ASSIGN. */
1717 is_gimple_assign (const_gimple gs)
1719 return gimple_code (gs) == GIMPLE_ASSIGN;
1722 /* Determine if expression CODE is one of the valid expressions that can
1723 be used on the RHS of GIMPLE assignments. */
1725 static inline enum gimple_rhs_class
1726 get_gimple_rhs_class (enum tree_code code)
1728 return (enum gimple_rhs_class) gimple_rhs_class_table[(int) code];
1731 /* Return the LHS of assignment statement GS. */
1734 gimple_assign_lhs (const_gimple gs)
1736 GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1737 return gimple_op (gs, 0);
1741 /* Return a pointer to the LHS of assignment statement GS. */
1743 static inline tree *
1744 gimple_assign_lhs_ptr (const_gimple gs)
1746 GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1747 return gimple_op_ptr (gs, 0);
1751 /* Set LHS to be the LHS operand of assignment statement GS. */
1754 gimple_assign_set_lhs (gimple gs, tree lhs)
1756 GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1757 gimple_set_op (gs, 0, lhs);
1759 if (lhs && TREE_CODE (lhs) == SSA_NAME)
1760 SSA_NAME_DEF_STMT (lhs) = gs;
1764 /* Return the first operand on the RHS of assignment statement GS. */
1767 gimple_assign_rhs1 (const_gimple gs)
1769 GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1770 return gimple_op (gs, 1);
1774 /* Return a pointer to the first operand on the RHS of assignment
1777 static inline tree *
1778 gimple_assign_rhs1_ptr (const_gimple gs)
1780 GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1781 return gimple_op_ptr (gs, 1);
1784 /* Set RHS to be the first operand on the RHS of assignment statement GS. */
1787 gimple_assign_set_rhs1 (gimple gs, tree rhs)
1789 GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1791 gimple_set_op (gs, 1, rhs);
1795 /* Return the second operand on the RHS of assignment statement GS.
1796 If GS does not have two operands, NULL is returned instead. */
1799 gimple_assign_rhs2 (const_gimple gs)
1801 GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1803 if (gimple_num_ops (gs) >= 3)
1804 return gimple_op (gs, 2);
1810 /* Return a pointer to the second operand on the RHS of assignment
1813 static inline tree *
1814 gimple_assign_rhs2_ptr (const_gimple gs)
1816 GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1817 return gimple_op_ptr (gs, 2);
1821 /* Set RHS to be the second operand on the RHS of assignment statement GS. */
1824 gimple_assign_set_rhs2 (gimple gs, tree rhs)
1826 GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1828 gimple_set_op (gs, 2, rhs);
1831 /* Return the third operand on the RHS of assignment statement GS.
1832 If GS does not have two operands, NULL is returned instead. */
1835 gimple_assign_rhs3 (const_gimple gs)
1837 GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1839 if (gimple_num_ops (gs) >= 4)
1840 return gimple_op (gs, 3);
1845 /* Return a pointer to the third operand on the RHS of assignment
1848 static inline tree *
1849 gimple_assign_rhs3_ptr (const_gimple gs)
1851 GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1852 return gimple_op_ptr (gs, 3);
1856 /* Set RHS to be the third operand on the RHS of assignment statement GS. */
1859 gimple_assign_set_rhs3 (gimple gs, tree rhs)
1861 GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1863 gimple_set_op (gs, 3, rhs);
1866 /* A wrapper around gimple_assign_set_rhs_with_ops_1, for callers which expect
1867 to see only a maximum of two operands. */
1870 gimple_assign_set_rhs_with_ops (gimple_stmt_iterator *gsi, enum tree_code code,
1873 gimple_assign_set_rhs_with_ops_1 (gsi, code, op1, op2, NULL);
1876 /* A wrapper around extract_ops_from_tree_1, for callers which expect
1877 to see only a maximum of two operands. */
1880 extract_ops_from_tree (tree expr, enum tree_code *code, tree *op0,
1884 extract_ops_from_tree_1 (expr, code, op0, op1, &op2);
1885 gcc_assert (op2 == NULL_TREE);
1888 /* Returns true if GS is a nontemporal move. */
1891 gimple_assign_nontemporal_move_p (const_gimple gs)
1893 GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1894 return gs->gsbase.nontemporal_move;
1897 /* Sets nontemporal move flag of GS to NONTEMPORAL. */
1900 gimple_assign_set_nontemporal_move (gimple gs, bool nontemporal)
1902 GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1903 gs->gsbase.nontemporal_move = nontemporal;
1907 /* Return the code of the expression computed on the rhs of assignment
1908 statement GS. In case that the RHS is a single object, returns the
1909 tree code of the object. */
1911 static inline enum tree_code
1912 gimple_assign_rhs_code (const_gimple gs)
1914 enum tree_code code;
1915 GIMPLE_CHECK (gs, GIMPLE_ASSIGN);
1917 code = (enum tree_code) gs->gsbase.subcode;
1918 /* While we initially set subcode to the TREE_CODE of the rhs for
1919 GIMPLE_SINGLE_RHS assigns we do not update that subcode to stay
1920 in sync when we rewrite stmts into SSA form or do SSA propagations. */
1921 if (get_gimple_rhs_class (code) == GIMPLE_SINGLE_RHS)
1922 code = TREE_CODE (gimple_assign_rhs1 (gs));
1928 /* Set CODE to be the code for the expression computed on the RHS of
1932 gimple_assign_set_rhs_code (gimple s, enum tree_code code)
1934 GIMPLE_CHECK (s, GIMPLE_ASSIGN);
1935 s->gsbase.subcode = code;
1939 /* Return the gimple rhs class of the code of the expression computed on
1940 the rhs of assignment statement GS.
1941 This will never return GIMPLE_INVALID_RHS. */
1943 static inline enum gimple_rhs_class
1944 gimple_assign_rhs_class (const_gimple gs)
1946 return get_gimple_rhs_class (gimple_assign_rhs_code (gs));
1949 /* Return true if GS is an assignment with a singleton RHS, i.e.,
1950 there is no operator associated with the assignment itself.
1951 Unlike gimple_assign_copy_p, this predicate returns true for
1952 any RHS operand, including those that perform an operation
1953 and do not have the semantics of a copy, such as COND_EXPR. */
1956 gimple_assign_single_p (gimple gs)
1958 return (is_gimple_assign (gs)
1959 && gimple_assign_rhs_class (gs) == GIMPLE_SINGLE_RHS);
1963 /* Return true if S is a type-cast assignment. */
1966 gimple_assign_cast_p (gimple s)
1968 if (is_gimple_assign (s))
1970 enum tree_code sc = gimple_assign_rhs_code (s);
1971 return CONVERT_EXPR_CODE_P (sc)
1972 || sc == VIEW_CONVERT_EXPR
1973 || sc == FIX_TRUNC_EXPR;
1980 /* Return true if GS is a GIMPLE_CALL. */
1983 is_gimple_call (const_gimple gs)
1985 return gimple_code (gs) == GIMPLE_CALL;
1988 /* Return the LHS of call statement GS. */
1991 gimple_call_lhs (const_gimple gs)
1993 GIMPLE_CHECK (gs, GIMPLE_CALL);
1994 return gimple_op (gs, 0);
1998 /* Return a pointer to the LHS of call statement GS. */
2000 static inline tree *
2001 gimple_call_lhs_ptr (const_gimple gs)
2003 GIMPLE_CHECK (gs, GIMPLE_CALL);
2004 return gimple_op_ptr (gs, 0);
2008 /* Set LHS to be the LHS operand of call statement GS. */
2011 gimple_call_set_lhs (gimple gs, tree lhs)
2013 GIMPLE_CHECK (gs, GIMPLE_CALL);
2014 gimple_set_op (gs, 0, lhs);
2015 if (lhs && TREE_CODE (lhs) == SSA_NAME)
2016 SSA_NAME_DEF_STMT (lhs) = gs;
2020 /* Return true if call GS calls an internal-only function, as enumerated
2024 gimple_call_internal_p (const_gimple gs)
2026 GIMPLE_CHECK (gs, GIMPLE_CALL);
2027 return (gs->gsbase.subcode & GF_CALL_INTERNAL) != 0;
2031 /* Return the target of internal call GS. */
2033 static inline enum internal_fn
2034 gimple_call_internal_fn (const_gimple gs)
2036 gcc_gimple_checking_assert (gimple_call_internal_p (gs));
2037 return gs->gimple_call.u.internal_fn;
2041 /* Return the function type of the function called by GS. */
2044 gimple_call_fntype (const_gimple gs)
2046 GIMPLE_CHECK (gs, GIMPLE_CALL);
2047 if (gimple_call_internal_p (gs))
2049 return gs->gimple_call.u.fntype;
2052 /* Set the type of the function called by GS to FNTYPE. */
2055 gimple_call_set_fntype (gimple gs, tree fntype)
2057 GIMPLE_CHECK (gs, GIMPLE_CALL);
2058 gcc_gimple_checking_assert (!gimple_call_internal_p (gs));
2059 gs->gimple_call.u.fntype = fntype;
2063 /* Return the tree node representing the function called by call
2067 gimple_call_fn (const_gimple gs)
2069 GIMPLE_CHECK (gs, GIMPLE_CALL);
2070 return gimple_op (gs, 1);
2073 /* Return a pointer to the tree node representing the function called by call
2076 static inline tree *
2077 gimple_call_fn_ptr (const_gimple gs)
2079 GIMPLE_CHECK (gs, GIMPLE_CALL);
2080 return gimple_op_ptr (gs, 1);
2084 /* Set FN to be the function called by call statement GS. */
2087 gimple_call_set_fn (gimple gs, tree fn)
2089 GIMPLE_CHECK (gs, GIMPLE_CALL);
2090 gcc_gimple_checking_assert (!gimple_call_internal_p (gs));
2091 gimple_set_op (gs, 1, fn);
2095 /* Set FNDECL to be the function called by call statement GS. */
2098 gimple_call_set_fndecl (gimple gs, tree decl)
2100 GIMPLE_CHECK (gs, GIMPLE_CALL);
2101 gcc_gimple_checking_assert (!gimple_call_internal_p (gs));
2102 gimple_set_op (gs, 1, build_fold_addr_expr_loc (gimple_location (gs), decl));
2106 /* Set internal function FN to be the function called by call statement GS. */
2109 gimple_call_set_internal_fn (gimple gs, enum internal_fn fn)
2111 GIMPLE_CHECK (gs, GIMPLE_CALL);
2112 gcc_gimple_checking_assert (gimple_call_internal_p (gs));
2113 gs->gimple_call.u.internal_fn = fn;
2117 /* Given a valid GIMPLE_CALL function address return the FUNCTION_DECL
2118 associated with the callee if known. Otherwise return NULL_TREE. */
2121 gimple_call_addr_fndecl (const_tree fn)
2123 if (fn && TREE_CODE (fn) == ADDR_EXPR)
2125 tree fndecl = TREE_OPERAND (fn, 0);
2126 if (TREE_CODE (fndecl) == MEM_REF
2127 && TREE_CODE (TREE_OPERAND (fndecl, 0)) == ADDR_EXPR
2128 && integer_zerop (TREE_OPERAND (fndecl, 1)))
2129 fndecl = TREE_OPERAND (TREE_OPERAND (fndecl, 0), 0);
2130 if (TREE_CODE (fndecl) == FUNCTION_DECL)
2136 /* If a given GIMPLE_CALL's callee is a FUNCTION_DECL, return it.
2137 Otherwise return NULL. This function is analogous to
2138 get_callee_fndecl in tree land. */
2141 gimple_call_fndecl (const_gimple gs)
2143 return gimple_call_addr_fndecl (gimple_call_fn (gs));
2147 /* Return the type returned by call statement GS. */
2150 gimple_call_return_type (const_gimple gs)
2152 tree type = gimple_call_fntype (gs);
2154 if (type == NULL_TREE)
2155 return TREE_TYPE (gimple_call_lhs (gs));
2157 /* The type returned by a function is the type of its
2159 return TREE_TYPE (type);
2163 /* Return the static chain for call statement GS. */
2166 gimple_call_chain (const_gimple gs)
2168 GIMPLE_CHECK (gs, GIMPLE_CALL);
2169 return gimple_op (gs, 2);
2173 /* Return a pointer to the static chain for call statement GS. */
2175 static inline tree *
2176 gimple_call_chain_ptr (const_gimple gs)
2178 GIMPLE_CHECK (gs, GIMPLE_CALL);
2179 return gimple_op_ptr (gs, 2);
2182 /* Set CHAIN to be the static chain for call statement GS. */
2185 gimple_call_set_chain (gimple gs, tree chain)
2187 GIMPLE_CHECK (gs, GIMPLE_CALL);
2189 gimple_set_op (gs, 2, chain);
2193 /* Return the number of arguments used by call statement GS. */
2195 static inline unsigned
2196 gimple_call_num_args (const_gimple gs)
2199 GIMPLE_CHECK (gs, GIMPLE_CALL);
2200 num_ops = gimple_num_ops (gs);
2205 /* Return the argument at position INDEX for call statement GS. */
2208 gimple_call_arg (const_gimple gs, unsigned index)
2210 GIMPLE_CHECK (gs, GIMPLE_CALL);
2211 return gimple_op (gs, index + 3);
2215 /* Return a pointer to the argument at position INDEX for call
2218 static inline tree *
2219 gimple_call_arg_ptr (const_gimple gs, unsigned index)
2221 GIMPLE_CHECK (gs, GIMPLE_CALL);
2222 return gimple_op_ptr (gs, index + 3);
2226 /* Set ARG to be the argument at position INDEX for call statement GS. */
2229 gimple_call_set_arg (gimple gs, unsigned index, tree arg)
2231 GIMPLE_CHECK (gs, GIMPLE_CALL);
2232 gimple_set_op (gs, index + 3, arg);
2236 /* If TAIL_P is true, mark call statement S as being a tail call
2237 (i.e., a call just before the exit of a function). These calls are
2238 candidate for tail call optimization. */
2241 gimple_call_set_tail (gimple s, bool tail_p)
2243 GIMPLE_CHECK (s, GIMPLE_CALL);
2245 s->gsbase.subcode |= GF_CALL_TAILCALL;
2247 s->gsbase.subcode &= ~GF_CALL_TAILCALL;
2251 /* Return true if GIMPLE_CALL S is marked as a tail call. */
2254 gimple_call_tail_p (gimple s)
2256 GIMPLE_CHECK (s, GIMPLE_CALL);
2257 return (s->gsbase.subcode & GF_CALL_TAILCALL) != 0;
2261 /* Set the inlinable status of GIMPLE_CALL S to INLINABLE_P. */
2264 gimple_call_set_cannot_inline (gimple s, bool inlinable_p)
2266 GIMPLE_CHECK (s, GIMPLE_CALL);
2268 s->gsbase.subcode |= GF_CALL_CANNOT_INLINE;
2270 s->gsbase.subcode &= ~GF_CALL_CANNOT_INLINE;
2274 /* Return true if GIMPLE_CALL S cannot be inlined. */
2277 gimple_call_cannot_inline_p (gimple s)
2279 GIMPLE_CHECK (s, GIMPLE_CALL);
2280 return (s->gsbase.subcode & GF_CALL_CANNOT_INLINE) != 0;
2284 /* If RETURN_SLOT_OPT_P is true mark GIMPLE_CALL S as valid for return
2285 slot optimization. This transformation uses the target of the call
2286 expansion as the return slot for calls that return in memory. */
2289 gimple_call_set_return_slot_opt (gimple s, bool return_slot_opt_p)
2291 GIMPLE_CHECK (s, GIMPLE_CALL);
2292 if (return_slot_opt_p)
2293 s->gsbase.subcode |= GF_CALL_RETURN_SLOT_OPT;
2295 s->gsbase.subcode &= ~GF_CALL_RETURN_SLOT_OPT;
2299 /* Return true if S is marked for return slot optimization. */
2302 gimple_call_return_slot_opt_p (gimple s)
2304 GIMPLE_CHECK (s, GIMPLE_CALL);
2305 return (s->gsbase.subcode & GF_CALL_RETURN_SLOT_OPT) != 0;
2309 /* If FROM_THUNK_P is true, mark GIMPLE_CALL S as being the jump from a
2310 thunk to the thunked-to function. */
2313 gimple_call_set_from_thunk (gimple s, bool from_thunk_p)
2315 GIMPLE_CHECK (s, GIMPLE_CALL);
2317 s->gsbase.subcode |= GF_CALL_FROM_THUNK;
2319 s->gsbase.subcode &= ~GF_CALL_FROM_THUNK;
2323 /* Return true if GIMPLE_CALL S is a jump from a thunk. */
2326 gimple_call_from_thunk_p (gimple s)
2328 GIMPLE_CHECK (s, GIMPLE_CALL);
2329 return (s->gsbase.subcode & GF_CALL_FROM_THUNK) != 0;
2333 /* If PASS_ARG_PACK_P is true, GIMPLE_CALL S is a stdarg call that needs the
2334 argument pack in its argument list. */
2337 gimple_call_set_va_arg_pack (gimple s, bool pass_arg_pack_p)
2339 GIMPLE_CHECK (s, GIMPLE_CALL);
2340 if (pass_arg_pack_p)
2341 s->gsbase.subcode |= GF_CALL_VA_ARG_PACK;
2343 s->gsbase.subcode &= ~GF_CALL_VA_ARG_PACK;
2347 /* Return true if GIMPLE_CALL S is a stdarg call that needs the
2348 argument pack in its argument list. */
2351 gimple_call_va_arg_pack_p (gimple s)
2353 GIMPLE_CHECK (s, GIMPLE_CALL);
2354 return (s->gsbase.subcode & GF_CALL_VA_ARG_PACK) != 0;
2358 /* Return true if S is a noreturn call. */
2361 gimple_call_noreturn_p (gimple s)
2363 GIMPLE_CHECK (s, GIMPLE_CALL);
2364 return (gimple_call_flags (s) & ECF_NORETURN) != 0;
2368 /* If NOTHROW_P is true, GIMPLE_CALL S is a call that is known to not throw
2369 even if the called function can throw in other cases. */
2372 gimple_call_set_nothrow (gimple s, bool nothrow_p)
2374 GIMPLE_CHECK (s, GIMPLE_CALL);
2376 s->gsbase.subcode |= GF_CALL_NOTHROW;
2378 s->gsbase.subcode &= ~GF_CALL_NOTHROW;
2381 /* Return true if S is a nothrow call. */
2384 gimple_call_nothrow_p (gimple s)
2386 GIMPLE_CHECK (s, GIMPLE_CALL);
2387 return (gimple_call_flags (s) & ECF_NOTHROW) != 0;
2390 /* If FOR_VAR is true, GIMPLE_CALL S is a call to builtin_alloca that
2391 is known to be emitted for VLA objects. Those are wrapped by
2392 stack_save/stack_restore calls and hence can't lead to unbounded
2393 stack growth even when they occur in loops. */
2396 gimple_call_set_alloca_for_var (gimple s, bool for_var)
2398 GIMPLE_CHECK (s, GIMPLE_CALL);
2400 s->gsbase.subcode |= GF_CALL_ALLOCA_FOR_VAR;
2402 s->gsbase.subcode &= ~GF_CALL_ALLOCA_FOR_VAR;
2405 /* Return true of S is a call to builtin_alloca emitted for VLA objects. */
2408 gimple_call_alloca_for_var_p (gimple s)
2410 GIMPLE_CHECK (s, GIMPLE_CALL);
2411 return (s->gsbase.subcode & GF_CALL_ALLOCA_FOR_VAR) != 0;
2414 /* Copy all the GF_CALL_* flags from ORIG_CALL to DEST_CALL. */
2417 gimple_call_copy_flags (gimple dest_call, gimple orig_call)
2419 GIMPLE_CHECK (dest_call, GIMPLE_CALL);
2420 GIMPLE_CHECK (orig_call, GIMPLE_CALL);
2421 dest_call->gsbase.subcode = orig_call->gsbase.subcode;
2425 /* Return a pointer to the points-to solution for the set of call-used
2426 variables of the call CALL. */
2428 static inline struct pt_solution *
2429 gimple_call_use_set (gimple call)
2431 GIMPLE_CHECK (call, GIMPLE_CALL);
2432 return &call->gimple_call.call_used;
2436 /* Return a pointer to the points-to solution for the set of call-used
2437 variables of the call CALL. */
2439 static inline struct pt_solution *
2440 gimple_call_clobber_set (gimple call)
2442 GIMPLE_CHECK (call, GIMPLE_CALL);
2443 return &call->gimple_call.call_clobbered;
2447 /* Returns true if this is a GIMPLE_ASSIGN or a GIMPLE_CALL with a
2451 gimple_has_lhs (gimple stmt)
2453 return (is_gimple_assign (stmt)
2454 || (is_gimple_call (stmt)
2455 && gimple_call_lhs (stmt) != NULL_TREE));
2459 /* Return the code of the predicate computed by conditional statement GS. */
2461 static inline enum tree_code
2462 gimple_cond_code (const_gimple gs)
2464 GIMPLE_CHECK (gs, GIMPLE_COND);
2465 return (enum tree_code) gs->gsbase.subcode;
2469 /* Set CODE to be the predicate code for the conditional statement GS. */
2472 gimple_cond_set_code (gimple gs, enum tree_code code)
2474 GIMPLE_CHECK (gs, GIMPLE_COND);
2475 gs->gsbase.subcode = code;
2479 /* Return the LHS of the predicate computed by conditional statement GS. */
2482 gimple_cond_lhs (const_gimple gs)
2484 GIMPLE_CHECK (gs, GIMPLE_COND);
2485 return gimple_op (gs, 0);
2488 /* Return the pointer to the LHS of the predicate computed by conditional
2491 static inline tree *
2492 gimple_cond_lhs_ptr (const_gimple gs)
2494 GIMPLE_CHECK (gs, GIMPLE_COND);
2495 return gimple_op_ptr (gs, 0);
2498 /* Set LHS to be the LHS operand of the predicate computed by
2499 conditional statement GS. */
2502 gimple_cond_set_lhs (gimple gs, tree lhs)
2504 GIMPLE_CHECK (gs, GIMPLE_COND);
2505 gimple_set_op (gs, 0, lhs);
2509 /* Return the RHS operand of the predicate computed by conditional GS. */
2512 gimple_cond_rhs (const_gimple gs)
2514 GIMPLE_CHECK (gs, GIMPLE_COND);
2515 return gimple_op (gs, 1);
2518 /* Return the pointer to the RHS operand of the predicate computed by
2521 static inline tree *
2522 gimple_cond_rhs_ptr (const_gimple gs)
2524 GIMPLE_CHECK (gs, GIMPLE_COND);
2525 return gimple_op_ptr (gs, 1);
2529 /* Set RHS to be the RHS operand of the predicate computed by
2530 conditional statement GS. */
2533 gimple_cond_set_rhs (gimple gs, tree rhs)
2535 GIMPLE_CHECK (gs, GIMPLE_COND);
2536 gimple_set_op (gs, 1, rhs);
2540 /* Return the label used by conditional statement GS when its
2541 predicate evaluates to true. */
2544 gimple_cond_true_label (const_gimple gs)
2546 GIMPLE_CHECK (gs, GIMPLE_COND);
2547 return gimple_op (gs, 2);
2551 /* Set LABEL to be the label used by conditional statement GS when its
2552 predicate evaluates to true. */
2555 gimple_cond_set_true_label (gimple gs, tree label)
2557 GIMPLE_CHECK (gs, GIMPLE_COND);
2558 gimple_set_op (gs, 2, label);
2562 /* Set LABEL to be the label used by conditional statement GS when its
2563 predicate evaluates to false. */
2566 gimple_cond_set_false_label (gimple gs, tree label)
2568 GIMPLE_CHECK (gs, GIMPLE_COND);
2569 gimple_set_op (gs, 3, label);
2573 /* Return the label used by conditional statement GS when its
2574 predicate evaluates to false. */
2577 gimple_cond_false_label (const_gimple gs)
2579 GIMPLE_CHECK (gs, GIMPLE_COND);
2580 return gimple_op (gs, 3);
2584 /* Set the conditional COND_STMT to be of the form 'if (1 == 0)'. */
2587 gimple_cond_make_false (gimple gs)
2589 gimple_cond_set_lhs (gs, boolean_true_node);
2590 gimple_cond_set_rhs (gs, boolean_false_node);
2591 gs->gsbase.subcode = EQ_EXPR;
2595 /* Set the conditional COND_STMT to be of the form 'if (1 == 1)'. */
2598 gimple_cond_make_true (gimple gs)
2600 gimple_cond_set_lhs (gs, boolean_true_node);
2601 gimple_cond_set_rhs (gs, boolean_true_node);
2602 gs->gsbase.subcode = EQ_EXPR;
2605 /* Check if conditional statemente GS is of the form 'if (1 == 1)',
2606 'if (0 == 0)', 'if (1 != 0)' or 'if (0 != 1)' */
2609 gimple_cond_true_p (const_gimple gs)
2611 tree lhs = gimple_cond_lhs (gs);
2612 tree rhs = gimple_cond_rhs (gs);
2613 enum tree_code code = gimple_cond_code (gs);
2615 if (lhs != boolean_true_node && lhs != boolean_false_node)
2618 if (rhs != boolean_true_node && rhs != boolean_false_node)
2621 if (code == NE_EXPR && lhs != rhs)
2624 if (code == EQ_EXPR && lhs == rhs)
2630 /* Check if conditional statement GS is of the form 'if (1 != 1)',
2631 'if (0 != 0)', 'if (1 == 0)' or 'if (0 == 1)' */
2634 gimple_cond_false_p (const_gimple gs)
2636 tree lhs = gimple_cond_lhs (gs);
2637 tree rhs = gimple_cond_rhs (gs);
2638 enum tree_code code = gimple_cond_code (gs);
2640 if (lhs != boolean_true_node && lhs != boolean_false_node)
2643 if (rhs != boolean_true_node && rhs != boolean_false_node)
2646 if (code == NE_EXPR && lhs == rhs)
2649 if (code == EQ_EXPR && lhs != rhs)
2655 /* Check if conditional statement GS is of the form 'if (var != 0)' or
2659 gimple_cond_single_var_p (gimple gs)
2661 if (gimple_cond_code (gs) == NE_EXPR
2662 && gimple_cond_rhs (gs) == boolean_false_node)
2665 if (gimple_cond_code (gs) == EQ_EXPR
2666 && gimple_cond_rhs (gs) == boolean_true_node)
2672 /* Set the code, LHS and RHS of GIMPLE_COND STMT from CODE, LHS and RHS. */
2675 gimple_cond_set_condition (gimple stmt, enum tree_code code, tree lhs, tree rhs)
2677 gimple_cond_set_code (stmt, code);
2678 gimple_cond_set_lhs (stmt, lhs);
2679 gimple_cond_set_rhs (stmt, rhs);
2682 /* Return the LABEL_DECL node used by GIMPLE_LABEL statement GS. */
2685 gimple_label_label (const_gimple gs)
2687 GIMPLE_CHECK (gs, GIMPLE_LABEL);
2688 return gimple_op (gs, 0);
2692 /* Set LABEL to be the LABEL_DECL node used by GIMPLE_LABEL statement
2696 gimple_label_set_label (gimple gs, tree label)
2698 GIMPLE_CHECK (gs, GIMPLE_LABEL);
2699 gimple_set_op (gs, 0, label);
2703 /* Return the destination of the unconditional jump GS. */
2706 gimple_goto_dest (const_gimple gs)
2708 GIMPLE_CHECK (gs, GIMPLE_GOTO);
2709 return gimple_op (gs, 0);
2713 /* Set DEST to be the destination of the unconditonal jump GS. */
2716 gimple_goto_set_dest (gimple gs, tree dest)
2718 GIMPLE_CHECK (gs, GIMPLE_GOTO);
2719 gimple_set_op (gs, 0, dest);
2723 /* Return the variables declared in the GIMPLE_BIND statement GS. */
2726 gimple_bind_vars (const_gimple gs)
2728 GIMPLE_CHECK (gs, GIMPLE_BIND);
2729 return gs->gimple_bind.vars;
2733 /* Set VARS to be the set of variables declared in the GIMPLE_BIND
2737 gimple_bind_set_vars (gimple gs, tree vars)
2739 GIMPLE_CHECK (gs, GIMPLE_BIND);
2740 gs->gimple_bind.vars = vars;
2744 /* Append VARS to the set of variables declared in the GIMPLE_BIND
2748 gimple_bind_append_vars (gimple gs, tree vars)
2750 GIMPLE_CHECK (gs, GIMPLE_BIND);
2751 gs->gimple_bind.vars = chainon (gs->gimple_bind.vars, vars);
2755 /* Return the GIMPLE sequence contained in the GIMPLE_BIND statement GS. */
2757 static inline gimple_seq
2758 gimple_bind_body (gimple gs)
2760 GIMPLE_CHECK (gs, GIMPLE_BIND);
2761 return gs->gimple_bind.body;
2765 /* Set SEQ to be the GIMPLE sequence contained in the GIMPLE_BIND
2769 gimple_bind_set_body (gimple gs, gimple_seq seq)
2771 GIMPLE_CHECK (gs, GIMPLE_BIND);
2772 gs->gimple_bind.body = seq;
2776 /* Append a statement to the end of a GIMPLE_BIND's body. */
2779 gimple_bind_add_stmt (gimple gs, gimple stmt)
2781 GIMPLE_CHECK (gs, GIMPLE_BIND);
2782 gimple_seq_add_stmt (&gs->gimple_bind.body, stmt);
2786 /* Append a sequence of statements to the end of a GIMPLE_BIND's body. */
2789 gimple_bind_add_seq (gimple gs, gimple_seq seq)
2791 GIMPLE_CHECK (gs, GIMPLE_BIND);
2792 gimple_seq_add_seq (&gs->gimple_bind.body, seq);
2796 /* Return the TREE_BLOCK node associated with GIMPLE_BIND statement
2797 GS. This is analogous to the BIND_EXPR_BLOCK field in trees. */
2800 gimple_bind_block (const_gimple gs)
2802 GIMPLE_CHECK (gs, GIMPLE_BIND);
2803 return gs->gimple_bind.block;
2807 /* Set BLOCK to be the TREE_BLOCK node associated with GIMPLE_BIND
2811 gimple_bind_set_block (gimple gs, tree block)
2813 GIMPLE_CHECK (gs, GIMPLE_BIND);
2814 gcc_gimple_checking_assert (block == NULL_TREE
2815 || TREE_CODE (block) == BLOCK);
2816 gs->gimple_bind.block = block;
2820 /* Return the number of input operands for GIMPLE_ASM GS. */
2822 static inline unsigned
2823 gimple_asm_ninputs (const_gimple gs)
2825 GIMPLE_CHECK (gs, GIMPLE_ASM);
2826 return gs->gimple_asm.ni;
2830 /* Return the number of output operands for GIMPLE_ASM GS. */
2832 static inline unsigned
2833 gimple_asm_noutputs (const_gimple gs)
2835 GIMPLE_CHECK (gs, GIMPLE_ASM);
2836 return gs->gimple_asm.no;
2840 /* Return the number of clobber operands for GIMPLE_ASM GS. */
2842 static inline unsigned
2843 gimple_asm_nclobbers (const_gimple gs)
2845 GIMPLE_CHECK (gs, GIMPLE_ASM);
2846 return gs->gimple_asm.nc;
2849 /* Return the number of label operands for GIMPLE_ASM GS. */
2851 static inline unsigned
2852 gimple_asm_nlabels (const_gimple gs)
2854 GIMPLE_CHECK (gs, GIMPLE_ASM);
2855 return gs->gimple_asm.nl;
2858 /* Return input operand INDEX of GIMPLE_ASM GS. */
2861 gimple_asm_input_op (const_gimple gs, unsigned index)
2863 GIMPLE_CHECK (gs, GIMPLE_ASM);
2864 gcc_gimple_checking_assert (index <= gs->gimple_asm.ni);
2865 return gimple_op (gs, index);
2868 /* Return a pointer to input operand INDEX of GIMPLE_ASM GS. */
2870 static inline tree *
2871 gimple_asm_input_op_ptr (const_gimple gs, unsigned index)
2873 GIMPLE_CHECK (gs, GIMPLE_ASM);
2874 gcc_gimple_checking_assert (index <= gs->gimple_asm.ni);
2875 return gimple_op_ptr (gs, index);
2879 /* Set IN_OP to be input operand INDEX in GIMPLE_ASM GS. */
2882 gimple_asm_set_input_op (gimple gs, unsigned index, tree in_op)
2884 GIMPLE_CHECK (gs, GIMPLE_ASM);
2885 gcc_gimple_checking_assert (index <= gs->gimple_asm.ni
2886 && TREE_CODE (in_op) == TREE_LIST);
2887 gimple_set_op (gs, index, in_op);
2891 /* Return output operand INDEX of GIMPLE_ASM GS. */
2894 gimple_asm_output_op (const_gimple gs, unsigned index)
2896 GIMPLE_CHECK (gs, GIMPLE_ASM);
2897 gcc_gimple_checking_assert (index <= gs->gimple_asm.no);
2898 return gimple_op (gs, index + gs->gimple_asm.ni);
2901 /* Return a pointer to output operand INDEX of GIMPLE_ASM GS. */
2903 static inline tree *
2904 gimple_asm_output_op_ptr (const_gimple gs, unsigned index)
2906 GIMPLE_CHECK (gs, GIMPLE_ASM);
2907 gcc_gimple_checking_assert (index <= gs->gimple_asm.no);
2908 return gimple_op_ptr (gs, index + gs->gimple_asm.ni);
2912 /* Set OUT_OP to be output operand INDEX in GIMPLE_ASM GS. */
2915 gimple_asm_set_output_op (gimple gs, unsigned index, tree out_op)
2917 GIMPLE_CHECK (gs, GIMPLE_ASM);
2918 gcc_gimple_checking_assert (index <= gs->gimple_asm.no
2919 && TREE_CODE (out_op) == TREE_LIST);
2920 gimple_set_op (gs, index + gs->gimple_asm.ni, out_op);
2924 /* Return clobber operand INDEX of GIMPLE_ASM GS. */
2927 gimple_asm_clobber_op (const_gimple gs, unsigned index)
2929 GIMPLE_CHECK (gs, GIMPLE_ASM);
2930 gcc_gimple_checking_assert (index <= gs->gimple_asm.nc);
2931 return gimple_op (gs, index + gs->gimple_asm.ni + gs->gimple_asm.no);
2935 /* Set CLOBBER_OP to be clobber operand INDEX in GIMPLE_ASM GS. */
2938 gimple_asm_set_clobber_op (gimple gs, unsigned index, tree clobber_op)
2940 GIMPLE_CHECK (gs, GIMPLE_ASM);
2941 gcc_gimple_checking_assert (index <= gs->gimple_asm.nc
2942 && TREE_CODE (clobber_op) == TREE_LIST);
2943 gimple_set_op (gs, index + gs->gimple_asm.ni + gs->gimple_asm.no, clobber_op);
2946 /* Return label operand INDEX of GIMPLE_ASM GS. */
2949 gimple_asm_label_op (const_gimple gs, unsigned index)
2951 GIMPLE_CHECK (gs, GIMPLE_ASM);
2952 gcc_gimple_checking_assert (index <= gs->gimple_asm.nl);
2953 return gimple_op (gs, index + gs->gimple_asm.ni + gs->gimple_asm.nc);
2956 /* Set LABEL_OP to be label operand INDEX in GIMPLE_ASM GS. */
2959 gimple_asm_set_label_op (gimple gs, unsigned index, tree label_op)
2961 GIMPLE_CHECK (gs, GIMPLE_ASM);
2962 gcc_gimple_checking_assert (index <= gs->gimple_asm.nl
2963 && TREE_CODE (label_op) == TREE_LIST);
2964 gimple_set_op (gs, index + gs->gimple_asm.ni + gs->gimple_asm.nc, label_op);
2967 /* Return the string representing the assembly instruction in
2970 static inline const char *
2971 gimple_asm_string (const_gimple gs)
2973 GIMPLE_CHECK (gs, GIMPLE_ASM);
2974 return gs->gimple_asm.string;
2978 /* Return true if GS is an asm statement marked volatile. */
2981 gimple_asm_volatile_p (const_gimple gs)
2983 GIMPLE_CHECK (gs, GIMPLE_ASM);
2984 return (gs->gsbase.subcode & GF_ASM_VOLATILE) != 0;
2988 /* If VOLATLE_P is true, mark asm statement GS as volatile. */
2991 gimple_asm_set_volatile (gimple gs, bool volatile_p)
2993 GIMPLE_CHECK (gs, GIMPLE_ASM);
2995 gs->gsbase.subcode |= GF_ASM_VOLATILE;
2997 gs->gsbase.subcode &= ~GF_ASM_VOLATILE;
3001 /* If INPUT_P is true, mark asm GS as an ASM_INPUT. */
3004 gimple_asm_set_input (gimple gs, bool input_p)
3006 GIMPLE_CHECK (gs, GIMPLE_ASM);
3008 gs->gsbase.subcode |= GF_ASM_INPUT;
3010 gs->gsbase.subcode &= ~GF_ASM_INPUT;
3014 /* Return true if asm GS is an ASM_INPUT. */
3017 gimple_asm_input_p (const_gimple gs)
3019 GIMPLE_CHECK (gs, GIMPLE_ASM);
3020 return (gs->gsbase.subcode & GF_ASM_INPUT) != 0;
3024 /* Return the types handled by GIMPLE_CATCH statement GS. */
3027 gimple_catch_types (const_gimple gs)
3029 GIMPLE_CHECK (gs, GIMPLE_CATCH);
3030 return gs->gimple_catch.types;
3034 /* Return a pointer to the types handled by GIMPLE_CATCH statement GS. */
3036 static inline tree *
3037 gimple_catch_types_ptr (gimple gs)
3039 GIMPLE_CHECK (gs, GIMPLE_CATCH);
3040 return &gs->gimple_catch.types;
3044 /* Return the GIMPLE sequence representing the body of the handler of
3045 GIMPLE_CATCH statement GS. */
3047 static inline gimple_seq
3048 gimple_catch_handler (gimple gs)
3050 GIMPLE_CHECK (gs, GIMPLE_CATCH);
3051 return gs->gimple_catch.handler;
3055 /* Return a pointer to the GIMPLE sequence representing the body of
3056 the handler of GIMPLE_CATCH statement GS. */
3058 static inline gimple_seq *
3059 gimple_catch_handler_ptr (gimple gs)
3061 GIMPLE_CHECK (gs, GIMPLE_CATCH);
3062 return &gs->gimple_catch.handler;
3066 /* Set T to be the set of types handled by GIMPLE_CATCH GS. */
3069 gimple_catch_set_types (gimple gs, tree t)
3071 GIMPLE_CHECK (gs, GIMPLE_CATCH);
3072 gs->gimple_catch.types = t;
3076 /* Set HANDLER to be the body of GIMPLE_CATCH GS. */
3079 gimple_catch_set_handler (gimple gs, gimple_seq handler)
3081 GIMPLE_CHECK (gs, GIMPLE_CATCH);
3082 gs->gimple_catch.handler = handler;
3086 /* Return the types handled by GIMPLE_EH_FILTER statement GS. */
3089 gimple_eh_filter_types (const_gimple gs)
3091 GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
3092 return gs->gimple_eh_filter.types;
3096 /* Return a pointer to the types handled by GIMPLE_EH_FILTER statement
3099 static inline tree *
3100 gimple_eh_filter_types_ptr (gimple gs)
3102 GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
3103 return &gs->gimple_eh_filter.types;
3107 /* Return the sequence of statement to execute when GIMPLE_EH_FILTER
3110 static inline gimple_seq
3111 gimple_eh_filter_failure (gimple gs)
3113 GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
3114 return gs->gimple_eh_filter.failure;
3118 /* Set TYPES to be the set of types handled by GIMPLE_EH_FILTER GS. */
3121 gimple_eh_filter_set_types (gimple gs, tree types)
3123 GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
3124 gs->gimple_eh_filter.types = types;
3128 /* Set FAILURE to be the sequence of statements to execute on failure
3129 for GIMPLE_EH_FILTER GS. */
3132 gimple_eh_filter_set_failure (gimple gs, gimple_seq failure)
3134 GIMPLE_CHECK (gs, GIMPLE_EH_FILTER);
3135 gs->gimple_eh_filter.failure = failure;
3138 /* Get the function decl to be called by the MUST_NOT_THROW region. */
3141 gimple_eh_must_not_throw_fndecl (gimple gs)
3143 GIMPLE_CHECK (gs, GIMPLE_EH_MUST_NOT_THROW);
3144 return gs->gimple_eh_mnt.fndecl;
3147 /* Set the function decl to be called by GS to DECL. */
3150 gimple_eh_must_not_throw_set_fndecl (gimple gs, tree decl)
3152 GIMPLE_CHECK (gs, GIMPLE_EH_MUST_NOT_THROW);
3153 gs->gimple_eh_mnt.fndecl = decl;
3157 /* GIMPLE_TRY accessors. */
3159 /* Return the kind of try block represented by GIMPLE_TRY GS. This is
3160 either GIMPLE_TRY_CATCH or GIMPLE_TRY_FINALLY. */
3162 static inline enum gimple_try_flags
3163 gimple_try_kind (const_gimple gs)
3165 GIMPLE_CHECK (gs, GIMPLE_TRY);
3166 return (enum gimple_try_flags) (gs->gsbase.subcode & GIMPLE_TRY_KIND);
3170 /* Set the kind of try block represented by GIMPLE_TRY GS. */
3173 gimple_try_set_kind (gimple gs, enum gimple_try_flags kind)
3175 GIMPLE_CHECK (gs, GIMPLE_TRY);
3176 gcc_gimple_checking_assert (kind == GIMPLE_TRY_CATCH
3177 || kind == GIMPLE_TRY_FINALLY);
3178 if (gimple_try_kind (gs) != kind)
3179 gs->gsbase.subcode = (unsigned int) kind;
3183 /* Return the GIMPLE_TRY_CATCH_IS_CLEANUP flag. */
3186 gimple_try_catch_is_cleanup (const_gimple gs)
3188 gcc_gimple_checking_assert (gimple_try_kind (gs) == GIMPLE_TRY_CATCH);
3189 return (gs->gsbase.subcode & GIMPLE_TRY_CATCH_IS_CLEANUP) != 0;
3193 /* Return the sequence of statements used as the body for GIMPLE_TRY GS. */
3195 static inline gimple_seq
3196 gimple_try_eval (gimple gs)
3198 GIMPLE_CHECK (gs, GIMPLE_TRY);
3199 return gs->gimple_try.eval;
3203 /* Return the sequence of statements used as the cleanup body for
3206 static inline gimple_seq
3207 gimple_try_cleanup (gimple gs)
3209 GIMPLE_CHECK (gs, GIMPLE_TRY);
3210 return gs->gimple_try.cleanup;
3214 /* Set the GIMPLE_TRY_CATCH_IS_CLEANUP flag. */
3217 gimple_try_set_catch_is_cleanup (gimple g, bool catch_is_cleanup)
3219 gcc_gimple_checking_assert (gimple_try_kind (g) == GIMPLE_TRY_CATCH);
3220 if (catch_is_cleanup)
3221 g->gsbase.subcode |= GIMPLE_TRY_CATCH_IS_CLEANUP;
3223 g->gsbase.subcode &= ~GIMPLE_TRY_CATCH_IS_CLEANUP;
3227 /* Set EVAL to be the sequence of statements to use as the body for
3231 gimple_try_set_eval (gimple gs, gimple_seq eval)
3233 GIMPLE_CHECK (gs, GIMPLE_TRY);
3234 gs->gimple_try.eval = eval;
3238 /* Set CLEANUP to be the sequence of statements to use as the cleanup
3239 body for GIMPLE_TRY GS. */
3242 gimple_try_set_cleanup (gimple gs, gimple_seq cleanup)
3244 GIMPLE_CHECK (gs, GIMPLE_TRY);
3245 gs->gimple_try.cleanup = cleanup;
3249 /* Return the cleanup sequence for cleanup statement GS. */
3251 static inline gimple_seq
3252 gimple_wce_cleanup (gimple gs)
3254 GIMPLE_CHECK (gs, GIMPLE_WITH_CLEANUP_EXPR);
3255 return gs->gimple_wce.cleanup;
3259 /* Set CLEANUP to be the cleanup sequence for GS. */
3262 gimple_wce_set_cleanup (gimple gs, gimple_seq cleanup)
3264 GIMPLE_CHECK (gs, GIMPLE_WITH_CLEANUP_EXPR);
3265 gs->gimple_wce.cleanup = cleanup;
3269 /* Return the CLEANUP_EH_ONLY flag for a WCE tuple. */
3272 gimple_wce_cleanup_eh_only (const_gimple gs)
3274 GIMPLE_CHECK (gs, GIMPLE_WITH_CLEANUP_EXPR);
3275 return gs->gsbase.subcode != 0;
3279 /* Set the CLEANUP_EH_ONLY flag for a WCE tuple. */
3282 gimple_wce_set_cleanup_eh_only (gimple gs, bool eh_only_p)
3284 GIMPLE_CHECK (gs, GIMPLE_WITH_CLEANUP_EXPR);
3285 gs->gsbase.subcode = (unsigned int) eh_only_p;
3289 /* Return the maximum number of arguments supported by GIMPLE_PHI GS. */
3291 static inline unsigned
3292 gimple_phi_capacity (const_gimple gs)
3294 GIMPLE_CHECK (gs, GIMPLE_PHI);
3295 return gs->gimple_phi.capacity;
3299 /* Return the number of arguments in GIMPLE_PHI GS. This must always
3300 be exactly the number of incoming edges for the basic block holding
3303 static inline unsigned
3304 gimple_phi_num_args (const_gimple gs)
3306 GIMPLE_CHECK (gs, GIMPLE_PHI);
3307 return gs->gimple_phi.nargs;
3311 /* Return the SSA name created by GIMPLE_PHI GS. */
3314 gimple_phi_result (const_gimple gs)
3316 GIMPLE_CHECK (gs, GIMPLE_PHI);
3317 return gs->gimple_phi.result;
3320 /* Return a pointer to the SSA name created by GIMPLE_PHI GS. */
3322 static inline tree *
3323 gimple_phi_result_ptr (gimple gs)
3325 GIMPLE_CHECK (gs, GIMPLE_PHI);
3326 return &gs->gimple_phi.result;
3329 /* Set RESULT to be the SSA name created by GIMPLE_PHI GS. */
3332 gimple_phi_set_result (gimple gs, tree result)
3334 GIMPLE_CHECK (gs, GIMPLE_PHI);
3335 gs->gimple_phi.result = result;
3339 /* Return the PHI argument corresponding to incoming edge INDEX for
3342 static inline struct phi_arg_d *
3343 gimple_phi_arg (gimple gs, unsigned index)
3345 GIMPLE_CHECK (gs, GIMPLE_PHI);
3346 gcc_gimple_checking_assert (index <= gs->gimple_phi.capacity);
3347 return &(gs->gimple_phi.args[index]);
3350 /* Set PHIARG to be the argument corresponding to incoming edge INDEX
3351 for GIMPLE_PHI GS. */
3354 gimple_phi_set_arg (gimple gs, unsigned index, struct phi_arg_d * phiarg)
3356 GIMPLE_CHECK (gs, GIMPLE_PHI);
3357 gcc_gimple_checking_assert (index <= gs->gimple_phi.nargs);
3358 gs->gimple_phi.args[index] = *phiarg;
3361 /* Return the region number for GIMPLE_RESX GS. */
3364 gimple_resx_region (const_gimple gs)
3366 GIMPLE_CHECK (gs, GIMPLE_RESX);
3367 return gs->gimple_eh_ctrl.region;
3370 /* Set REGION to be the region number for GIMPLE_RESX GS. */
3373 gimple_resx_set_region (gimple gs, int region)
3375 GIMPLE_CHECK (gs, GIMPLE_RESX);
3376 gs->gimple_eh_ctrl.region = region;
3379 /* Return the region number for GIMPLE_EH_DISPATCH GS. */
3382 gimple_eh_dispatch_region (const_gimple gs)
3384 GIMPLE_CHECK (gs, GIMPLE_EH_DISPATCH);
3385 return gs->gimple_eh_ctrl.region;
3388 /* Set REGION to be the region number for GIMPLE_EH_DISPATCH GS. */
3391 gimple_eh_dispatch_set_region (gimple gs, int region)
3393 GIMPLE_CHECK (gs, GIMPLE_EH_DISPATCH);
3394 gs->gimple_eh_ctrl.region = region;
3397 /* Return the number of labels associated with the switch statement GS. */
3399 static inline unsigned
3400 gimple_switch_num_labels (const_gimple gs)
3403 GIMPLE_CHECK (gs, GIMPLE_SWITCH);
3404 num_ops = gimple_num_ops (gs);
3405 gcc_gimple_checking_assert (num_ops > 1);
3410 /* Set NLABELS to be the number of labels for the switch statement GS. */
3413 gimple_switch_set_num_labels (gimple g, unsigned nlabels)
3415 GIMPLE_CHECK (g, GIMPLE_SWITCH);
3416 gimple_set_num_ops (g, nlabels + 1);
3420 /* Return the index variable used by the switch statement GS. */
3423 gimple_switch_index (const_gimple gs)
3425 GIMPLE_CHECK (gs, GIMPLE_SWITCH);
3426 return gimple_op (gs, 0);
3430 /* Return a pointer to the index variable for the switch statement GS. */
3432 static inline tree *
3433 gimple_switch_index_ptr (const_gimple gs)
3435 GIMPLE_CHECK (gs, GIMPLE_SWITCH);
3436 return gimple_op_ptr (gs, 0);
3440 /* Set INDEX to be the index variable for switch statement GS. */
3443 gimple_switch_set_index (gimple gs, tree index)
3445 GIMPLE_CHECK (gs, GIMPLE_SWITCH);
3446 gcc_gimple_checking_assert (SSA_VAR_P (index) || CONSTANT_CLASS_P (index));
3447 gimple_set_op (gs, 0, index);
3451 /* Return the label numbered INDEX. The default label is 0, followed by any
3452 labels in a switch statement. */
3455 gimple_switch_label (const_gimple gs, unsigned index)
3457 GIMPLE_CHECK (gs, GIMPLE_SWITCH);
3458 gcc_gimple_checking_assert (gimple_num_ops (gs) > index + 1);
3459 return gimple_op (gs, index + 1);
3462 /* Set the label number INDEX to LABEL. 0 is always the default label. */
3465 gimple_switch_set_label (gimple gs, unsigned index, tree label)
3467 GIMPLE_CHECK (gs, GIMPLE_SWITCH);
3468 gcc_gimple_checking_assert (gimple_num_ops (gs) > index + 1
3469 && (label == NULL_TREE
3470 || TREE_CODE (label) == CASE_LABEL_EXPR));
3471 gimple_set_op (gs, index + 1, label);
3474 /* Return the default label for a switch statement. */
3477 gimple_switch_default_label (const_gimple gs)
3479 return gimple_switch_label (gs, 0);
3482 /* Set the default label for a switch statement. */
3485 gimple_switch_set_default_label (gimple gs, tree label)
3487 gimple_switch_set_label (gs, 0, label);
3490 /* Return true if GS is a GIMPLE_DEBUG statement. */
3493 is_gimple_debug (const_gimple gs)
3495 return gimple_code (gs) == GIMPLE_DEBUG;
3498 /* Return true if S is a GIMPLE_DEBUG BIND statement. */
3501 gimple_debug_bind_p (const_gimple s)
3503 if (is_gimple_debug (s))
3504 return s->gsbase.subcode == GIMPLE_DEBUG_BIND;
3509 /* Return the variable bound in a GIMPLE_DEBUG bind statement. */
3512 gimple_debug_bind_get_var (gimple dbg)
3514 GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3515 gcc_gimple_checking_assert (gimple_debug_bind_p (dbg));
3516 return gimple_op (dbg, 0);
3519 /* Return the value bound to the variable in a GIMPLE_DEBUG bind
3523 gimple_debug_bind_get_value (gimple dbg)
3525 GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3526 gcc_gimple_checking_assert (gimple_debug_bind_p (dbg));
3527 return gimple_op (dbg, 1);
3530 /* Return a pointer to the value bound to the variable in a
3531 GIMPLE_DEBUG bind statement. */
3533 static inline tree *
3534 gimple_debug_bind_get_value_ptr (gimple dbg)
3536 GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3537 gcc_gimple_checking_assert (gimple_debug_bind_p (dbg));
3538 return gimple_op_ptr (dbg, 1);
3541 /* Set the variable bound in a GIMPLE_DEBUG bind statement. */
3544 gimple_debug_bind_set_var (gimple dbg, tree var)
3546 GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3547 gcc_gimple_checking_assert (gimple_debug_bind_p (dbg));
3548 gimple_set_op (dbg, 0, var);
3551 /* Set the value bound to the variable in a GIMPLE_DEBUG bind
3555 gimple_debug_bind_set_value (gimple dbg, tree value)
3557 GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3558 gcc_gimple_checking_assert (gimple_debug_bind_p (dbg));
3559 gimple_set_op (dbg, 1, value);
3562 /* The second operand of a GIMPLE_DEBUG_BIND, when the value was
3564 #define GIMPLE_DEBUG_BIND_NOVALUE NULL_TREE /* error_mark_node */
3566 /* Remove the value bound to the variable in a GIMPLE_DEBUG bind
3570 gimple_debug_bind_reset_value (gimple dbg)
3572 GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3573 gcc_gimple_checking_assert (gimple_debug_bind_p (dbg));
3574 gimple_set_op (dbg, 1, GIMPLE_DEBUG_BIND_NOVALUE);
3577 /* Return true if the GIMPLE_DEBUG bind statement is bound to a
3581 gimple_debug_bind_has_value_p (gimple dbg)
3583 GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3584 gcc_gimple_checking_assert (gimple_debug_bind_p (dbg));
3585 return gimple_op (dbg, 1) != GIMPLE_DEBUG_BIND_NOVALUE;
3588 #undef GIMPLE_DEBUG_BIND_NOVALUE
3590 /* Return true if S is a GIMPLE_DEBUG SOURCE BIND statement. */
3593 gimple_debug_source_bind_p (const_gimple s)
3595 if (is_gimple_debug (s))
3596 return s->gsbase.subcode == GIMPLE_DEBUG_SOURCE_BIND;
3601 /* Return the variable bound in a GIMPLE_DEBUG source bind statement. */
3604 gimple_debug_source_bind_get_var (gimple dbg)
3606 GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3607 gcc_gimple_checking_assert (gimple_debug_source_bind_p (dbg));
3608 return gimple_op (dbg, 0);
3611 /* Return the value bound to the variable in a GIMPLE_DEBUG source bind
3615 gimple_debug_source_bind_get_value (gimple dbg)
3617 GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3618 gcc_gimple_checking_assert (gimple_debug_source_bind_p (dbg));
3619 return gimple_op (dbg, 1);
3622 /* Return a pointer to the value bound to the variable in a
3623 GIMPLE_DEBUG source bind statement. */
3625 static inline tree *
3626 gimple_debug_source_bind_get_value_ptr (gimple dbg)
3628 GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3629 gcc_gimple_checking_assert (gimple_debug_source_bind_p (dbg));
3630 return gimple_op_ptr (dbg, 1);
3633 /* Set the variable bound in a GIMPLE_DEBUG source bind statement. */
3636 gimple_debug_source_bind_set_var (gimple dbg, tree var)
3638 GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3639 gcc_gimple_checking_assert (gimple_debug_source_bind_p (dbg));
3640 gimple_set_op (dbg, 0, var);
3643 /* Set the value bound to the variable in a GIMPLE_DEBUG source bind
3647 gimple_debug_source_bind_set_value (gimple dbg, tree value)
3649 GIMPLE_CHECK (dbg, GIMPLE_DEBUG);
3650 gcc_gimple_checking_assert (gimple_debug_source_bind_p (dbg));
3651 gimple_set_op (dbg, 1, value);
3654 /* Return the body for the OMP statement GS. */
3656 static inline gimple_seq
3657 gimple_omp_body (gimple gs)
3659 return gs->omp.body;
3662 /* Set BODY to be the body for the OMP statement GS. */
3665 gimple_omp_set_body (gimple gs, gimple_seq body)
3667 gs->omp.body = body;
3671 /* Return the name associated with OMP_CRITICAL statement GS. */
3674 gimple_omp_critical_name (const_gimple gs)
3676 GIMPLE_CHECK (gs, GIMPLE_OMP_CRITICAL);
3677 return gs->gimple_omp_critical.name;
3681 /* Return a pointer to the name associated with OMP critical statement GS. */
3683 static inline tree *
3684 gimple_omp_critical_name_ptr (gimple gs)
3686 GIMPLE_CHECK (gs, GIMPLE_OMP_CRITICAL);
3687 return &gs->gimple_omp_critical.name;
3691 /* Set NAME to be the name associated with OMP critical statement GS. */
3694 gimple_omp_critical_set_name (gimple gs, tree name)
3696 GIMPLE_CHECK (gs, GIMPLE_OMP_CRITICAL);
3697 gs->gimple_omp_critical.name = name;
3701 /* Return the clauses associated with OMP_FOR GS. */
3704 gimple_omp_for_clauses (const_gimple gs)
3706 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3707 return gs->gimple_omp_for.clauses;
3711 /* Return a pointer to the OMP_FOR GS. */
3713 static inline tree *
3714 gimple_omp_for_clauses_ptr (gimple gs)
3716 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3717 return &gs->gimple_omp_for.clauses;
3721 /* Set CLAUSES to be the list of clauses associated with OMP_FOR GS. */
3724 gimple_omp_for_set_clauses (gimple gs, tree clauses)
3726 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3727 gs->gimple_omp_for.clauses = clauses;
3731 /* Get the collapse count of OMP_FOR GS. */
3733 static inline size_t
3734 gimple_omp_for_collapse (gimple gs)
3736 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3737 return gs->gimple_omp_for.collapse;
3741 /* Return the index variable for OMP_FOR GS. */
3744 gimple_omp_for_index (const_gimple gs, size_t i)
3746 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3747 gcc_gimple_checking_assert (i < gs->gimple_omp_for.collapse);
3748 return gs->gimple_omp_for.iter[i].index;
3752 /* Return a pointer to the index variable for OMP_FOR GS. */
3754 static inline tree *
3755 gimple_omp_for_index_ptr (gimple gs, size_t i)
3757 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3758 gcc_gimple_checking_assert (i < gs->gimple_omp_for.collapse);
3759 return &gs->gimple_omp_for.iter[i].index;
3763 /* Set INDEX to be the index variable for OMP_FOR GS. */
3766 gimple_omp_for_set_index (gimple gs, size_t i, tree index)
3768 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3769 gcc_gimple_checking_assert (i < gs->gimple_omp_for.collapse);
3770 gs->gimple_omp_for.iter[i].index = index;
3774 /* Return the initial value for OMP_FOR GS. */
3777 gimple_omp_for_initial (const_gimple gs, size_t i)
3779 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3780 gcc_gimple_checking_assert (i < gs->gimple_omp_for.collapse);
3781 return gs->gimple_omp_for.iter[i].initial;
3785 /* Return a pointer to the initial value for OMP_FOR GS. */
3787 static inline tree *
3788 gimple_omp_for_initial_ptr (gimple gs, size_t i)
3790 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3791 gcc_gimple_checking_assert (i < gs->gimple_omp_for.collapse);
3792 return &gs->gimple_omp_for.iter[i].initial;
3796 /* Set INITIAL to be the initial value for OMP_FOR GS. */
3799 gimple_omp_for_set_initial (gimple gs, size_t i, tree initial)
3801 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3802 gcc_gimple_checking_assert (i < gs->gimple_omp_for.collapse);
3803 gs->gimple_omp_for.iter[i].initial = initial;
3807 /* Return the final value for OMP_FOR GS. */
3810 gimple_omp_for_final (const_gimple gs, size_t i)
3812 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3813 gcc_gimple_checking_assert (i < gs->gimple_omp_for.collapse);
3814 return gs->gimple_omp_for.iter[i].final;
3818 /* Return a pointer to the final value for OMP_FOR GS. */
3820 static inline tree *
3821 gimple_omp_for_final_ptr (gimple gs, size_t i)
3823 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3824 gcc_gimple_checking_assert (i < gs->gimple_omp_for.collapse);
3825 return &gs->gimple_omp_for.iter[i].final;
3829 /* Set FINAL to be the final value for OMP_FOR GS. */
3832 gimple_omp_for_set_final (gimple gs, size_t i, tree final)
3834 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3835 gcc_gimple_checking_assert (i < gs->gimple_omp_for.collapse);
3836 gs->gimple_omp_for.iter[i].final = final;
3840 /* Return the increment value for OMP_FOR GS. */
3843 gimple_omp_for_incr (const_gimple gs, size_t i)
3845 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3846 gcc_gimple_checking_assert (i < gs->gimple_omp_for.collapse);
3847 return gs->gimple_omp_for.iter[i].incr;
3851 /* Return a pointer to the increment value for OMP_FOR GS. */
3853 static inline tree *
3854 gimple_omp_for_incr_ptr (gimple gs, size_t i)
3856 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3857 gcc_gimple_checking_assert (i < gs->gimple_omp_for.collapse);
3858 return &gs->gimple_omp_for.iter[i].incr;
3862 /* Set INCR to be the increment value for OMP_FOR GS. */
3865 gimple_omp_for_set_incr (gimple gs, size_t i, tree incr)
3867 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3868 gcc_gimple_checking_assert (i < gs->gimple_omp_for.collapse);
3869 gs->gimple_omp_for.iter[i].incr = incr;
3873 /* Return the sequence of statements to execute before the OMP_FOR
3874 statement GS starts. */
3876 static inline gimple_seq
3877 gimple_omp_for_pre_body (gimple gs)
3879 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3880 return gs->gimple_omp_for.pre_body;
3884 /* Set PRE_BODY to be the sequence of statements to execute before the
3885 OMP_FOR statement GS starts. */
3888 gimple_omp_for_set_pre_body (gimple gs, gimple_seq pre_body)
3890 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
3891 gs->gimple_omp_for.pre_body = pre_body;
3895 /* Return the clauses associated with OMP_PARALLEL GS. */
3898 gimple_omp_parallel_clauses (const_gimple gs)
3900 GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3901 return gs->gimple_omp_parallel.clauses;
3905 /* Return a pointer to the clauses associated with OMP_PARALLEL GS. */
3907 static inline tree *
3908 gimple_omp_parallel_clauses_ptr (gimple gs)
3910 GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3911 return &gs->gimple_omp_parallel.clauses;
3915 /* Set CLAUSES to be the list of clauses associated with OMP_PARALLEL
3919 gimple_omp_parallel_set_clauses (gimple gs, tree clauses)
3921 GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3922 gs->gimple_omp_parallel.clauses = clauses;
3926 /* Return the child function used to hold the body of OMP_PARALLEL GS. */
3929 gimple_omp_parallel_child_fn (const_gimple gs)
3931 GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3932 return gs->gimple_omp_parallel.child_fn;
3935 /* Return a pointer to the child function used to hold the body of
3938 static inline tree *
3939 gimple_omp_parallel_child_fn_ptr (gimple gs)
3941 GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3942 return &gs->gimple_omp_parallel.child_fn;
3946 /* Set CHILD_FN to be the child function for OMP_PARALLEL GS. */
3949 gimple_omp_parallel_set_child_fn (gimple gs, tree child_fn)
3951 GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3952 gs->gimple_omp_parallel.child_fn = child_fn;
3956 /* Return the artificial argument used to send variables and values
3957 from the parent to the children threads in OMP_PARALLEL GS. */
3960 gimple_omp_parallel_data_arg (const_gimple gs)
3962 GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3963 return gs->gimple_omp_parallel.data_arg;
3967 /* Return a pointer to the data argument for OMP_PARALLEL GS. */
3969 static inline tree *
3970 gimple_omp_parallel_data_arg_ptr (gimple gs)
3972 GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3973 return &gs->gimple_omp_parallel.data_arg;
3977 /* Set DATA_ARG to be the data argument for OMP_PARALLEL GS. */
3980 gimple_omp_parallel_set_data_arg (gimple gs, tree data_arg)
3982 GIMPLE_CHECK (gs, GIMPLE_OMP_PARALLEL);
3983 gs->gimple_omp_parallel.data_arg = data_arg;
3987 /* Return the clauses associated with OMP_TASK GS. */
3990 gimple_omp_task_clauses (const_gimple gs)
3992 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
3993 return gs->gimple_omp_parallel.clauses;
3997 /* Return a pointer to the clauses associated with OMP_TASK GS. */
3999 static inline tree *
4000 gimple_omp_task_clauses_ptr (gimple gs)
4002 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4003 return &gs->gimple_omp_parallel.clauses;
4007 /* Set CLAUSES to be the list of clauses associated with OMP_TASK
4011 gimple_omp_task_set_clauses (gimple gs, tree clauses)
4013 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4014 gs->gimple_omp_parallel.clauses = clauses;
4018 /* Return the child function used to hold the body of OMP_TASK GS. */
4021 gimple_omp_task_child_fn (const_gimple gs)
4023 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4024 return gs->gimple_omp_parallel.child_fn;
4027 /* Return a pointer to the child function used to hold the body of
4030 static inline tree *
4031 gimple_omp_task_child_fn_ptr (gimple gs)
4033 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4034 return &gs->gimple_omp_parallel.child_fn;
4038 /* Set CHILD_FN to be the child function for OMP_TASK GS. */
4041 gimple_omp_task_set_child_fn (gimple gs, tree child_fn)
4043 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4044 gs->gimple_omp_parallel.child_fn = child_fn;
4048 /* Return the artificial argument used to send variables and values
4049 from the parent to the children threads in OMP_TASK GS. */
4052 gimple_omp_task_data_arg (const_gimple gs)
4054 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4055 return gs->gimple_omp_parallel.data_arg;
4059 /* Return a pointer to the data argument for OMP_TASK GS. */
4061 static inline tree *
4062 gimple_omp_task_data_arg_ptr (gimple gs)
4064 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4065 return &gs->gimple_omp_parallel.data_arg;
4069 /* Set DATA_ARG to be the data argument for OMP_TASK GS. */
4072 gimple_omp_task_set_data_arg (gimple gs, tree data_arg)
4074 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4075 gs->gimple_omp_parallel.data_arg = data_arg;
4079 /* Return the clauses associated with OMP_TASK GS. */
4082 gimple_omp_taskreg_clauses (const_gimple gs)
4084 if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
4085 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4086 return gs->gimple_omp_parallel.clauses;
4090 /* Return a pointer to the clauses associated with OMP_TASK GS. */
4092 static inline tree *
4093 gimple_omp_taskreg_clauses_ptr (gimple gs)
4095 if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
4096 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4097 return &gs->gimple_omp_parallel.clauses;
4101 /* Set CLAUSES to be the list of clauses associated with OMP_TASK
4105 gimple_omp_taskreg_set_clauses (gimple gs, tree clauses)
4107 if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
4108 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4109 gs->gimple_omp_parallel.clauses = clauses;
4113 /* Return the child function used to hold the body of OMP_TASK GS. */
4116 gimple_omp_taskreg_child_fn (const_gimple gs)
4118 if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
4119 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4120 return gs->gimple_omp_parallel.child_fn;
4123 /* Return a pointer to the child function used to hold the body of
4126 static inline tree *
4127 gimple_omp_taskreg_child_fn_ptr (gimple gs)
4129 if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
4130 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4131 return &gs->gimple_omp_parallel.child_fn;
4135 /* Set CHILD_FN to be the child function for OMP_TASK GS. */
4138 gimple_omp_taskreg_set_child_fn (gimple gs, tree child_fn)
4140 if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
4141 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4142 gs->gimple_omp_parallel.child_fn = child_fn;
4146 /* Return the artificial argument used to send variables and values
4147 from the parent to the children threads in OMP_TASK GS. */
4150 gimple_omp_taskreg_data_arg (const_gimple gs)
4152 if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
4153 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4154 return gs->gimple_omp_parallel.data_arg;
4158 /* Return a pointer to the data argument for OMP_TASK GS. */
4160 static inline tree *
4161 gimple_omp_taskreg_data_arg_ptr (gimple gs)
4163 if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
4164 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4165 return &gs->gimple_omp_parallel.data_arg;
4169 /* Set DATA_ARG to be the data argument for OMP_TASK GS. */
4172 gimple_omp_taskreg_set_data_arg (gimple gs, tree data_arg)
4174 if (gimple_code (gs) != GIMPLE_OMP_PARALLEL)
4175 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4176 gs->gimple_omp_parallel.data_arg = data_arg;
4180 /* Return the copy function used to hold the body of OMP_TASK GS. */
4183 gimple_omp_task_copy_fn (const_gimple gs)
4185 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4186 return gs->gimple_omp_task.copy_fn;
4189 /* Return a pointer to the copy function used to hold the body of
4192 static inline tree *
4193 gimple_omp_task_copy_fn_ptr (gimple gs)
4195 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4196 return &gs->gimple_omp_task.copy_fn;
4200 /* Set CHILD_FN to be the copy function for OMP_TASK GS. */
4203 gimple_omp_task_set_copy_fn (gimple gs, tree copy_fn)
4205 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4206 gs->gimple_omp_task.copy_fn = copy_fn;
4210 /* Return size of the data block in bytes in OMP_TASK GS. */
4213 gimple_omp_task_arg_size (const_gimple gs)
4215 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4216 return gs->gimple_omp_task.arg_size;
4220 /* Return a pointer to the data block size for OMP_TASK GS. */
4222 static inline tree *
4223 gimple_omp_task_arg_size_ptr (gimple gs)
4225 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4226 return &gs->gimple_omp_task.arg_size;
4230 /* Set ARG_SIZE to be the data block size for OMP_TASK GS. */
4233 gimple_omp_task_set_arg_size (gimple gs, tree arg_size)
4235 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4236 gs->gimple_omp_task.arg_size = arg_size;
4240 /* Return align of the data block in bytes in OMP_TASK GS. */
4243 gimple_omp_task_arg_align (const_gimple gs)
4245 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4246 return gs->gimple_omp_task.arg_align;
4250 /* Return a pointer to the data block align for OMP_TASK GS. */
4252 static inline tree *
4253 gimple_omp_task_arg_align_ptr (gimple gs)
4255 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4256 return &gs->gimple_omp_task.arg_align;
4260 /* Set ARG_SIZE to be the data block align for OMP_TASK GS. */
4263 gimple_omp_task_set_arg_align (gimple gs, tree arg_align)
4265 GIMPLE_CHECK (gs, GIMPLE_OMP_TASK);
4266 gs->gimple_omp_task.arg_align = arg_align;
4270 /* Return the clauses associated with OMP_SINGLE GS. */
4273 gimple_omp_single_clauses (const_gimple gs)
4275 GIMPLE_CHECK (gs, GIMPLE_OMP_SINGLE);
4276 return gs->gimple_omp_single.clauses;
4280 /* Return a pointer to the clauses associated with OMP_SINGLE GS. */
4282 static inline tree *
4283 gimple_omp_single_clauses_ptr (gimple gs)
4285 GIMPLE_CHECK (gs, GIMPLE_OMP_SINGLE);
4286 return &gs->gimple_omp_single.clauses;
4290 /* Set CLAUSES to be the clauses associated with OMP_SINGLE GS. */
4293 gimple_omp_single_set_clauses (gimple gs, tree clauses)
4295 GIMPLE_CHECK (gs, GIMPLE_OMP_SINGLE);
4296 gs->gimple_omp_single.clauses = clauses;
4300 /* Return the clauses associated with OMP_SECTIONS GS. */
4303 gimple_omp_sections_clauses (const_gimple gs)
4305 GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
4306 return gs->gimple_omp_sections.clauses;
4310 /* Return a pointer to the clauses associated with OMP_SECTIONS GS. */
4312 static inline tree *
4313 gimple_omp_sections_clauses_ptr (gimple gs)
4315 GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
4316 return &gs->gimple_omp_sections.clauses;
4320 /* Set CLAUSES to be the set of clauses associated with OMP_SECTIONS
4324 gimple_omp_sections_set_clauses (gimple gs, tree clauses)
4326 GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
4327 gs->gimple_omp_sections.clauses = clauses;
4331 /* Return the control variable associated with the GIMPLE_OMP_SECTIONS
4335 gimple_omp_sections_control (const_gimple gs)
4337 GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
4338 return gs->gimple_omp_sections.control;
4342 /* Return a pointer to the clauses associated with the GIMPLE_OMP_SECTIONS
4345 static inline tree *
4346 gimple_omp_sections_control_ptr (gimple gs)
4348 GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
4349 return &gs->gimple_omp_sections.control;
4353 /* Set CONTROL to be the set of clauses associated with the
4354 GIMPLE_OMP_SECTIONS in GS. */
4357 gimple_omp_sections_set_control (gimple gs, tree control)
4359 GIMPLE_CHECK (gs, GIMPLE_OMP_SECTIONS);
4360 gs->gimple_omp_sections.control = control;
4364 /* Set COND to be the condition code for OMP_FOR GS. */
4367 gimple_omp_for_set_cond (gimple gs, size_t i, enum tree_code cond)
4369 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
4370 gcc_gimple_checking_assert (TREE_CODE_CLASS (cond) == tcc_comparison
4371 && i < gs->gimple_omp_for.collapse);
4372 gs->gimple_omp_for.iter[i].cond = cond;
4376 /* Return the condition code associated with OMP_FOR GS. */
4378 static inline enum tree_code
4379 gimple_omp_for_cond (const_gimple gs, size_t i)
4381 GIMPLE_CHECK (gs, GIMPLE_OMP_FOR);
4382 gcc_gimple_checking_assert (i < gs->gimple_omp_for.collapse);
4383 return gs->gimple_omp_for.iter[i].cond;
4387 /* Set the value being stored in an atomic store. */
4390 gimple_omp_atomic_store_set_val (gimple g, tree val)
4392 GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_STORE);
4393 g->gimple_omp_atomic_store.val = val;
4397 /* Return the value being stored in an atomic store. */
4400 gimple_omp_atomic_store_val (const_gimple g)
4402 GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_STORE);
4403 return g->gimple_omp_atomic_store.val;
4407 /* Return a pointer to the value being stored in an atomic store. */
4409 static inline tree *
4410 gimple_omp_atomic_store_val_ptr (gimple g)
4412 GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_STORE);
4413 return &g->gimple_omp_atomic_store.val;
4417 /* Set the LHS of an atomic load. */
4420 gimple_omp_atomic_load_set_lhs (gimple g, tree lhs)
4422 GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
4423 g->gimple_omp_atomic_load.lhs = lhs;
4427 /* Get the LHS of an atomic load. */
4430 gimple_omp_atomic_load_lhs (const_gimple g)
4432 GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
4433 return g->gimple_omp_atomic_load.lhs;
4437 /* Return a pointer to the LHS of an atomic load. */
4439 static inline tree *
4440 gimple_omp_atomic_load_lhs_ptr (gimple g)
4442 GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
4443 return &g->gimple_omp_atomic_load.lhs;
4447 /* Set the RHS of an atomic load. */
4450 gimple_omp_atomic_load_set_rhs (gimple g, tree rhs)
4452 GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
4453 g->gimple_omp_atomic_load.rhs = rhs;
4457 /* Get the RHS of an atomic load. */
4460 gimple_omp_atomic_load_rhs (const_gimple g)
4462 GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
4463 return g->gimple_omp_atomic_load.rhs;
4467 /* Return a pointer to the RHS of an atomic load. */
4469 static inline tree *
4470 gimple_omp_atomic_load_rhs_ptr (gimple g)
4472 GIMPLE_CHECK (g, GIMPLE_OMP_ATOMIC_LOAD);
4473 return &g->gimple_omp_atomic_load.rhs;
4477 /* Get the definition of the control variable in a GIMPLE_OMP_CONTINUE. */
4480 gimple_omp_continue_control_def (const_gimple g)
4482 GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
4483 return g->gimple_omp_continue.control_def;
4486 /* The same as above, but return the address. */
4488 static inline tree *
4489 gimple_omp_continue_control_def_ptr (gimple g)
4491 GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
4492 return &g->gimple_omp_continue.control_def;
4495 /* Set the definition of the control variable in a GIMPLE_OMP_CONTINUE. */
4498 gimple_omp_continue_set_control_def (gimple g, tree def)
4500 GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
4501 g->gimple_omp_continue.control_def = def;
4505 /* Get the use of the control variable in a GIMPLE_OMP_CONTINUE. */
4508 gimple_omp_continue_control_use (const_gimple g)
4510 GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
4511 return g->gimple_omp_continue.control_use;
4515 /* The same as above, but return the address. */
4517 static inline tree *
4518 gimple_omp_continue_control_use_ptr (gimple g)
4520 GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
4521 return &g->gimple_omp_continue.control_use;
4525 /* Set the use of the control variable in a GIMPLE_OMP_CONTINUE. */
4528 gimple_omp_continue_set_control_use (gimple g, tree use)
4530 GIMPLE_CHECK (g, GIMPLE_OMP_CONTINUE);
4531 g->gimple_omp_continue.control_use = use;
4535 /* Return a pointer to the return value for GIMPLE_RETURN GS. */
4537 static inline tree *
4538 gimple_return_retval_ptr (const_gimple gs)
4540 GIMPLE_CHECK (gs, GIMPLE_RETURN);
4541 return gimple_op_ptr (gs, 0);
4544 /* Return the return value for GIMPLE_RETURN GS. */
4547 gimple_return_retval (const_gimple gs)
4549 GIMPLE_CHECK (gs, GIMPLE_RETURN);
4550 return gimple_op (gs, 0);
4554 /* Set RETVAL to be the return value for GIMPLE_RETURN GS. */
4557 gimple_return_set_retval (gimple gs, tree retval)
4559 GIMPLE_CHECK (gs, GIMPLE_RETURN);
4560 gimple_set_op (gs, 0, retval);
4564 /* Returns true when the gimple statment STMT is any of the OpenMP types. */
4566 #define CASE_GIMPLE_OMP \
4567 case GIMPLE_OMP_PARALLEL: \
4568 case GIMPLE_OMP_TASK: \
4569 case GIMPLE_OMP_FOR: \
4570 case GIMPLE_OMP_SECTIONS: \
4571 case GIMPLE_OMP_SECTIONS_SWITCH: \
4572 case GIMPLE_OMP_SINGLE: \
4573 case GIMPLE_OMP_SECTION: \
4574 case GIMPLE_OMP_MASTER: \
4575 case GIMPLE_OMP_ORDERED: \
4576 case GIMPLE_OMP_CRITICAL: \
4577 case GIMPLE_OMP_RETURN: \
4578 case GIMPLE_OMP_ATOMIC_LOAD: \
4579 case GIMPLE_OMP_ATOMIC_STORE: \
4580 case GIMPLE_OMP_CONTINUE
4583 is_gimple_omp (const_gimple stmt)
4585 switch (gimple_code (stmt))
4595 /* Returns TRUE if statement G is a GIMPLE_NOP. */
4598 gimple_nop_p (const_gimple g)
4600 return gimple_code (g) == GIMPLE_NOP;
4604 /* Return true if GS is a GIMPLE_RESX. */
4607 is_gimple_resx (const_gimple gs)
4609 return gimple_code (gs) == GIMPLE_RESX;
4612 /* Return the predictor of GIMPLE_PREDICT statement GS. */
4614 static inline enum br_predictor
4615 gimple_predict_predictor (gimple gs)
4617 GIMPLE_CHECK (gs, GIMPLE_PREDICT);
4618 return (enum br_predictor) (gs->gsbase.subcode & ~GF_PREDICT_TAKEN);
4622 /* Set the predictor of GIMPLE_PREDICT statement GS to PREDICT. */
4625 gimple_predict_set_predictor (gimple gs, enum br_predictor predictor)
4627 GIMPLE_CHECK (gs, GIMPLE_PREDICT);
4628 gs->gsbase.subcode = (gs->gsbase.subcode & GF_PREDICT_TAKEN)
4629 | (unsigned) predictor;
4633 /* Return the outcome of GIMPLE_PREDICT statement GS. */
4635 static inline enum prediction
4636 gimple_predict_outcome (gimple gs)
4638 GIMPLE_CHECK (gs, GIMPLE_PREDICT);
4639 return (gs->gsbase.subcode & GF_PREDICT_TAKEN) ? TAKEN : NOT_TAKEN;
4643 /* Set the outcome of GIMPLE_PREDICT statement GS to OUTCOME. */
4646 gimple_predict_set_outcome (gimple gs, enum prediction outcome)
4648 GIMPLE_CHECK (gs, GIMPLE_PREDICT);
4649 if (outcome == TAKEN)
4650 gs->gsbase.subcode |= GF_PREDICT_TAKEN;
4652 gs->gsbase.subcode &= ~GF_PREDICT_TAKEN;
4656 /* Return the type of the main expression computed by STMT. Return
4657 void_type_node if the statement computes nothing. */
4660 gimple_expr_type (const_gimple stmt)
4662 enum gimple_code code = gimple_code (stmt);
4664 if (code == GIMPLE_ASSIGN || code == GIMPLE_CALL)
4667 /* In general we want to pass out a type that can be substituted
4668 for both the RHS and the LHS types if there is a possibly
4669 useless conversion involved. That means returning the
4670 original RHS type as far as we can reconstruct it. */
4671 if (code == GIMPLE_CALL)
4672 type = gimple_call_return_type (stmt);
4674 switch (gimple_assign_rhs_code (stmt))
4676 case POINTER_PLUS_EXPR:
4677 type = TREE_TYPE (gimple_assign_rhs1 (stmt));
4681 /* As fallback use the type of the LHS. */
4682 type = TREE_TYPE (gimple_get_lhs (stmt));
4687 else if (code == GIMPLE_COND)
4688 return boolean_type_node;
4690 return void_type_node;
4694 /* Return a new iterator pointing to GIMPLE_SEQ's first statement. */
4696 static inline gimple_stmt_iterator
4697 gsi_start (gimple_seq seq)
4699 gimple_stmt_iterator i;
4701 i.ptr = gimple_seq_first (seq);
4703 i.bb = (i.ptr && i.ptr->stmt) ? gimple_bb (i.ptr->stmt) : NULL;
4709 /* Return a new iterator pointing to the first statement in basic block BB. */
4711 static inline gimple_stmt_iterator
4712 gsi_start_bb (basic_block bb)
4714 gimple_stmt_iterator i;
4718 i.ptr = gimple_seq_first (seq);
4726 /* Return a new iterator initially pointing to GIMPLE_SEQ's last statement. */
4728 static inline gimple_stmt_iterator
4729 gsi_last (gimple_seq seq)
4731 gimple_stmt_iterator i;
4733 i.ptr = gimple_seq_last (seq);
4735 i.bb = (i.ptr && i.ptr->stmt) ? gimple_bb (i.ptr->stmt) : NULL;
4741 /* Return a new iterator pointing to the last statement in basic block BB. */
4743 static inline gimple_stmt_iterator
4744 gsi_last_bb (basic_block bb)
4746 gimple_stmt_iterator i;
4750 i.ptr = gimple_seq_last (seq);
4758 /* Return true if I is at the end of its sequence. */
4761 gsi_end_p (gimple_stmt_iterator i)
4763 return i.ptr == NULL;
4767 /* Return true if I is one statement before the end of its sequence. */
4770 gsi_one_before_end_p (gimple_stmt_iterator i)
4772 return i.ptr != NULL && i.ptr->next == NULL;
4776 /* Advance the iterator to the next gimple statement. */
4779 gsi_next (gimple_stmt_iterator *i)
4781 i->ptr = i->ptr->next;
4784 /* Advance the iterator to the previous gimple statement. */
4787 gsi_prev (gimple_stmt_iterator *i)
4789 i->ptr = i->ptr->prev;
4792 /* Return the current stmt. */
4794 static inline gimple
4795 gsi_stmt (gimple_stmt_iterator i)
4800 /* Return a block statement iterator that points to the first non-label
4801 statement in block BB. */
4803 static inline gimple_stmt_iterator
4804 gsi_after_labels (basic_block bb)
4806 gimple_stmt_iterator gsi = gsi_start_bb (bb);
4808 while (!gsi_end_p (gsi) && gimple_code (gsi_stmt (gsi)) == GIMPLE_LABEL)
4814 /* Advance the iterator to the next non-debug gimple statement. */
4817 gsi_next_nondebug (gimple_stmt_iterator *i)
4823 while (!gsi_end_p (*i) && is_gimple_debug (gsi_stmt (*i)));
4826 /* Advance the iterator to the next non-debug gimple statement. */
4829 gsi_prev_nondebug (gimple_stmt_iterator *i)
4835 while (!gsi_end_p (*i) && is_gimple_debug (gsi_stmt (*i)));
4838 /* Return a new iterator pointing to the first non-debug statement in
4841 static inline gimple_stmt_iterator
4842 gsi_start_nondebug_bb (basic_block bb)
4844 gimple_stmt_iterator i = gsi_start_bb (bb);
4846 if (!gsi_end_p (i) && is_gimple_debug (gsi_stmt (i)))
4847 gsi_next_nondebug (&i);
4852 /* Return a new iterator pointing to the last non-debug statement in
4855 static inline gimple_stmt_iterator
4856 gsi_last_nondebug_bb (basic_block bb)
4858 gimple_stmt_iterator i = gsi_last_bb (bb);
4860 if (!gsi_end_p (i) && is_gimple_debug (gsi_stmt (i)))
4861 gsi_prev_nondebug (&i);
4866 /* Return a pointer to the current stmt.
4868 NOTE: You may want to use gsi_replace on the iterator itself,
4869 as this performs additional bookkeeping that will not be done
4870 if you simply assign through a pointer returned by gsi_stmt_ptr. */
4872 static inline gimple *
4873 gsi_stmt_ptr (gimple_stmt_iterator *i)
4875 return &i->ptr->stmt;
4879 /* Return the basic block associated with this iterator. */
4881 static inline basic_block
4882 gsi_bb (gimple_stmt_iterator i)
4888 /* Return the sequence associated with this iterator. */
4890 static inline gimple_seq
4891 gsi_seq (gimple_stmt_iterator i)
4897 enum gsi_iterator_update
4899 GSI_NEW_STMT, /* Only valid when single statement is added, move
4901 GSI_SAME_STMT, /* Leave the iterator at the same statement. */
4902 GSI_CONTINUE_LINKING /* Move iterator to whatever position is suitable
4903 for linking other statements in the same
4907 /* In gimple-iterator.c */
4908 gimple_stmt_iterator gsi_start_phis (basic_block);
4909 gimple_seq gsi_split_seq_after (gimple_stmt_iterator);
4910 gimple_seq gsi_split_seq_before (gimple_stmt_iterator *);
4911 void gsi_replace (gimple_stmt_iterator *, gimple, bool);
4912 void gsi_insert_before (gimple_stmt_iterator *, gimple,
4913 enum gsi_iterator_update);
4914 void gsi_insert_before_without_update (gimple_stmt_iterator *, gimple,
4915 enum gsi_iterator_update);
4916 void gsi_insert_seq_before (gimple_stmt_iterator *, gimple_seq,
4917 enum gsi_iterator_update);
4918 void gsi_insert_seq_before_without_update (gimple_stmt_iterator *, gimple_seq,
4919 enum gsi_iterator_update);
4920 void gsi_insert_after (gimple_stmt_iterator *, gimple,
4921 enum gsi_iterator_update);
4922 void gsi_insert_after_without_update (gimple_stmt_iterator *, gimple,
4923 enum gsi_iterator_update);
4924 void gsi_insert_seq_after (gimple_stmt_iterator *, gimple_seq,
4925 enum gsi_iterator_update);
4926 void gsi_insert_seq_after_without_update (gimple_stmt_iterator *, gimple_seq,
4927 enum gsi_iterator_update);
4928 void gsi_remove (gimple_stmt_iterator *, bool);
4929 gimple_stmt_iterator gsi_for_stmt (gimple);
4930 void gsi_move_after (gimple_stmt_iterator *, gimple_stmt_iterator *);
4931 void gsi_move_before (gimple_stmt_iterator *, gimple_stmt_iterator *);
4932 void gsi_move_to_bb_end (gimple_stmt_iterator *, struct basic_block_def *);
4933 void gsi_insert_on_edge (edge, gimple);
4934 void gsi_insert_seq_on_edge (edge, gimple_seq);
4935 basic_block gsi_insert_on_edge_immediate (edge, gimple);
4936 basic_block gsi_insert_seq_on_edge_immediate (edge, gimple_seq);
4937 void gsi_commit_one_edge_insert (edge, basic_block *);
4938 void gsi_commit_edge_inserts (void);
4939 gimple gimple_call_copy_skip_args (gimple, bitmap);
4942 /* Convenience routines to walk all statements of a gimple function.
4943 Note that this is useful exclusively before the code is converted
4944 into SSA form. Once the program is in SSA form, the standard
4945 operand interface should be used to analyze/modify statements. */
4946 struct walk_stmt_info
4948 /* Points to the current statement being walked. */
4949 gimple_stmt_iterator gsi;
4951 /* Additional data that the callback functions may want to carry
4952 through the recursion. */
4955 /* Pointer map used to mark visited tree nodes when calling
4956 walk_tree on each operand. If set to NULL, duplicate tree nodes
4957 will be visited more than once. */
4958 struct pointer_set_t *pset;
4960 /* Indicates whether the operand being examined may be replaced
4961 with something that matches is_gimple_val (if true) or something
4962 slightly more complicated (if false). "Something" technically
4963 means the common subset of is_gimple_lvalue and is_gimple_rhs,
4964 but we never try to form anything more complicated than that, so
4965 we don't bother checking.
4967 Also note that CALLBACK should update this flag while walking the
4968 sub-expressions of a statement. For instance, when walking the
4969 statement 'foo (&var)', the flag VAL_ONLY will initially be set
4970 to true, however, when walking &var, the operand of that
4971 ADDR_EXPR does not need to be a GIMPLE value. */
4974 /* True if we are currently walking the LHS of an assignment. */
4977 /* Optional. Set to true by the callback functions if they made any
4981 /* True if we're interested in location information. */
4982 bool want_locations;
4984 /* Operand returned by the callbacks. This is set when calling
4985 walk_gimple_seq. If the walk_stmt_fn or walk_tree_fn callback
4986 returns non-NULL, this field will contain the tree returned by
4987 the last callback. */
4988 tree callback_result;
4991 /* Callback for walk_gimple_stmt. Called for every statement found
4992 during traversal. The first argument points to the statement to
4993 walk. The second argument is a flag that the callback sets to
4994 'true' if it the callback handled all the operands and
4995 sub-statements of the statement (the default value of this flag is
4996 'false'). The third argument is an anonymous pointer to data
4997 to be used by the callback. */
4998 typedef tree (*walk_stmt_fn) (gimple_stmt_iterator *, bool *,
4999 struct walk_stmt_info *);
5001 gimple walk_gimple_seq (gimple_seq, walk_stmt_fn, walk_tree_fn,
5002 struct walk_stmt_info *);
5003 tree walk_gimple_stmt (gimple_stmt_iterator *, walk_stmt_fn, walk_tree_fn,
5004 struct walk_stmt_info *);
5005 tree walk_gimple_op (gimple, walk_tree_fn, struct walk_stmt_info *);
5007 #ifdef GATHER_STATISTICS
5008 /* Enum and arrays used for allocation stats. Keep in sync with
5009 gimple.c:gimple_alloc_kind_names. */
5010 enum gimple_alloc_kind
5012 gimple_alloc_kind_assign, /* Assignments. */
5013 gimple_alloc_kind_phi, /* PHI nodes. */
5014 gimple_alloc_kind_cond, /* Conditionals. */
5015 gimple_alloc_kind_seq, /* Sequences. */
5016 gimple_alloc_kind_rest, /* Everything else. */
5017 gimple_alloc_kind_all
5020 extern int gimple_alloc_counts[];
5021 extern int gimple_alloc_sizes[];
5023 /* Return the allocation kind for a given stmt CODE. */
5024 static inline enum gimple_alloc_kind
5025 gimple_alloc_kind (enum gimple_code code)
5030 return gimple_alloc_kind_assign;
5032 return gimple_alloc_kind_phi;
5034 return gimple_alloc_kind_cond;
5036 return gimple_alloc_kind_rest;
5039 #endif /* GATHER_STATISTICS */
5041 extern void dump_gimple_statistics (void);
5043 /* In gimple-fold.c. */
5044 void gimplify_and_update_call_from_tree (gimple_stmt_iterator *, tree);
5045 tree gimple_fold_builtin (gimple);
5046 bool fold_stmt (gimple_stmt_iterator *);
5047 bool fold_stmt_inplace (gimple);
5048 tree maybe_fold_offset_to_address (location_t, tree, tree, tree);
5049 tree maybe_fold_offset_to_reference (location_t, tree, tree, tree);
5050 tree maybe_fold_stmt_addition (location_t, tree, tree, tree);
5051 tree get_symbol_constant_value (tree);
5052 tree canonicalize_constructor_val (tree);
5053 bool may_propagate_address_into_dereference (tree, tree);
5054 extern tree maybe_fold_and_comparisons (enum tree_code, tree, tree,
5055 enum tree_code, tree, tree);
5056 extern tree maybe_fold_or_comparisons (enum tree_code, tree, tree,
5057 enum tree_code, tree, tree);
5059 bool gimple_val_nonnegative_real_p (tree);
5060 #endif /* GCC_GIMPLE_H */