1 /* Core data structures for the 'tree' type.
2 Copyright (C) 1989-2023 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 #ifndef GCC_TREE_CORE_H
21 #define GCC_TREE_CORE_H
25 /* This file contains all the data structures that define the 'tree' type.
26 There are no accessor macros nor functions in this file. Only the
27 basic data structures, extern declarations and type definitions. */
29 /*---------------------------------------------------------------------------
30 Forward type declarations. Mostly to avoid including unnecessary headers
31 ---------------------------------------------------------------------------*/
39 /*---------------------------------------------------------------------------
41 ---------------------------------------------------------------------------*/
42 /* Nonzero if this is a call to a function whose return value depends
43 solely on its arguments, has no side effects, and does not read
44 global memory. This corresponds to TREE_READONLY for function
46 #define ECF_CONST (1 << 0)
48 /* Nonzero if this is a call to "pure" function (like const function,
49 but may read memory. This corresponds to DECL_PURE_P for function
51 #define ECF_PURE (1 << 1)
53 /* Nonzero if this is ECF_CONST or ECF_PURE but cannot be proven to no
54 infinite loop. This corresponds to DECL_LOOPING_CONST_OR_PURE_P
56 #define ECF_LOOPING_CONST_OR_PURE (1 << 2)
58 /* Nonzero if this call will never return. */
59 #define ECF_NORETURN (1 << 3)
61 /* Nonzero if this is a call to malloc or a related function. */
62 #define ECF_MALLOC (1 << 4)
64 /* Nonzero if it is plausible that this is a call to alloca. */
65 #define ECF_MAY_BE_ALLOCA (1 << 5)
67 /* Nonzero if this is a call to a function that won't throw an exception. */
68 #define ECF_NOTHROW (1 << 6)
70 /* Nonzero if this is a call to setjmp or a related function. */
71 #define ECF_RETURNS_TWICE (1 << 7)
73 /* Nonzero if this call replaces the current stack frame. */
74 #define ECF_SIBCALL (1 << 8)
76 /* Function does not read or write memory (but may have side effects, so
77 it does not necessarily fit ECF_CONST). */
78 #define ECF_NOVOPS (1 << 9)
80 /* The function does not lead to calls within current function unit. */
81 #define ECF_LEAF (1 << 10)
83 /* Nonzero if this call returns its first argument. */
84 #define ECF_RET1 (1 << 11)
86 /* Nonzero if this call does not affect transactions. */
87 #define ECF_TM_PURE (1 << 12)
89 /* Nonzero if this call is into the transaction runtime library. */
90 #define ECF_TM_BUILTIN (1 << 13)
92 /* Nonzero if this is an indirect call by descriptor. */
93 #define ECF_BY_DESCRIPTOR (1 << 14)
95 /* Nonzero if this is a cold function. */
96 #define ECF_COLD (1 << 15)
98 /* Call argument flags. */
100 /* Nonzero if the argument is not used by the function. */
101 #define EAF_UNUSED (1 << 1)
103 /* Following flags come in pairs. First one is about direct dereferences
104 from the parameter, while the second is about memory reachable by
105 recursive dereferences. */
107 /* Nonzero if memory reached by the argument is not clobbered. */
108 #define EAF_NO_DIRECT_CLOBBER (1 << 2)
109 #define EAF_NO_INDIRECT_CLOBBER (1 << 3)
111 /* Nonzero if the argument does not escape. */
112 #define EAF_NO_DIRECT_ESCAPE (1 << 4)
113 #define EAF_NO_INDIRECT_ESCAPE (1 << 5)
115 /* Nonzero if the argument does not escape to return value. */
116 #define EAF_NOT_RETURNED_DIRECTLY (1 << 6)
117 #define EAF_NOT_RETURNED_INDIRECTLY (1 << 7)
119 /* Nonzero if the argument is not read. */
120 #define EAF_NO_DIRECT_READ (1 << 8)
121 #define EAF_NO_INDIRECT_READ (1 << 9)
123 /* Call return flags. */
124 /* Mask for the argument number that is returned. Lower two bits of
125 the return flags, encodes argument slots zero to three. */
126 #define ERF_RETURN_ARG_MASK (3)
128 /* Nonzero if the return value is equal to the argument number
129 flags & ERF_RETURN_ARG_MASK. */
130 #define ERF_RETURNS_ARG (1 << 2)
132 /* Nonzero if the return value does not alias with anything. Functions
133 with the malloc attribute have this set on their return value. */
134 #define ERF_NOALIAS (1 << 3)
137 /*---------------------------------------------------------------------------
139 ---------------------------------------------------------------------------*/
140 /* Codes of tree nodes. */
141 #define DEFTREECODE(SYM, STRING, TYPE, NARGS) SYM,
142 #define END_OF_BASE_TREE_CODES LAST_AND_UNUSED_TREE_CODE,
145 #include "all-tree.def"
150 #undef END_OF_BASE_TREE_CODES
152 /* Number of language-independent tree codes. */
153 #define NUM_TREE_CODES \
154 ((int) LAST_AND_UNUSED_TREE_CODE)
156 #define CODE_CONTAINS_STRUCT(CODE, STRUCT) \
157 (tree_contains_struct[(CODE)][(STRUCT)])
160 /* Classify which part of the compiler has defined a given builtin function.
161 Note that we assume below that this is no more than two bits. */
162 enum built_in_class
{
169 /* Last marker used for LTO stremaing of built_in_class. We cannot add it
170 to the enum since we need the enumb to fit in 2 bits. */
171 #define BUILT_IN_LAST (BUILT_IN_NORMAL + 1)
173 /* Codes that identify the various built in functions
174 so that expand_call can identify them quickly. */
175 #define DEF_BUILTIN(ENUM, N, C, T, LT, B, F, NA, AT, IM, COND) ENUM,
176 enum built_in_function
{
177 #include "builtins.def"
178 /* Complex division routines in libgcc. These are done via builtins
179 because emit_library_call_value can't handle complex values. */
180 BUILT_IN_COMPLEX_MUL_MIN
,
181 BUILT_IN_COMPLEX_MUL_MAX
182 = BUILT_IN_COMPLEX_MUL_MIN
183 + MAX_MODE_COMPLEX_FLOAT
184 - MIN_MODE_COMPLEX_FLOAT
,
186 BUILT_IN_COMPLEX_DIV_MIN
,
187 BUILT_IN_COMPLEX_DIV_MAX
188 = BUILT_IN_COMPLEX_DIV_MIN
189 + MAX_MODE_COMPLEX_FLOAT
190 - MIN_MODE_COMPLEX_FLOAT
,
192 /* Upper bound on non-language-specific builtins. */
196 /* Internal functions. */
198 #define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) IFN_##CODE,
199 #include "internal-fn.def"
203 /* An enum that combines target-independent built-in functions with
204 internal functions, so that they can be treated in a similar way.
205 The numbers for built-in functions are the same as for the
206 built_in_function enum. The numbers for internal functions
207 start at END_BUITLINS. */
209 #define DEF_BUILTIN(ENUM, N, C, T, LT, B, F, NA, AT, IM, COND) \
210 CFN_##ENUM = int (ENUM),
211 #include "builtins.def"
214 #define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) \
215 CFN_##CODE = int (END_BUILTINS) + int (IFN_##CODE),
216 #include "internal-fn.def"
221 /* Tree code classes. Each tree_code has an associated code class
222 represented by a TREE_CODE_CLASS. */
223 enum tree_code_class
{
224 tcc_exceptional
, /* An exceptional code (fits no category). */
225 tcc_constant
, /* A constant. */
226 /* Order of tcc_type and tcc_declaration is important. */
227 tcc_type
, /* A type object code. */
228 tcc_declaration
, /* A declaration (also serving as variable refs). */
229 tcc_reference
, /* A reference to storage. */
230 tcc_comparison
, /* A comparison expression. */
231 tcc_unary
, /* A unary arithmetic expression. */
232 tcc_binary
, /* A binary arithmetic expression. */
233 tcc_statement
, /* A statement expression, which have side effects
234 but usually no interesting value. */
235 tcc_vl_exp
, /* A function call or other expression with a
236 variable-length operand vector. */
237 tcc_expression
/* Any other expression. */
240 /* OMP_CLAUSE codes. Do not reorder, as this is used to index into
241 the tables omp_clause_num_ops and omp_clause_code_name. */
242 enum omp_clause_code
{
243 /* Clause zero is special-cased inside the parser
244 (c_parser_omp_variable_list). */
245 OMP_CLAUSE_ERROR
= 0,
247 /* OpenACC/OpenMP clause: private (variable_list). */
250 /* OpenMP clause: shared (variable_list). */
253 /* OpenACC/OpenMP clause: firstprivate (variable_list). */
254 OMP_CLAUSE_FIRSTPRIVATE
,
256 /* OpenMP clause: lastprivate (variable_list). */
257 OMP_CLAUSE_LASTPRIVATE
,
259 /* OpenACC/OpenMP clause: reduction (operator:variable_list).
260 OMP_CLAUSE_REDUCTION_CODE: The tree_code of the operator.
261 Operand 1: OMP_CLAUSE_REDUCTION_INIT: Stmt-list to initialize the var.
262 Operand 2: OMP_CLAUSE_REDUCTION_MERGE: Stmt-list to merge private var
264 Operand 3: OMP_CLAUSE_REDUCTION_PLACEHOLDER: A dummy VAR_DECL
265 placeholder used in OMP_CLAUSE_REDUCTION_{INIT,MERGE}.
266 Operand 4: OMP_CLAUSE_REDUCTION_DECL_PLACEHOLDER: Another dummy
267 VAR_DECL placeholder, used like the above for C/C++ array
269 OMP_CLAUSE_REDUCTION
,
271 /* OpenMP clause: task_reduction (operator:variable_list). */
272 OMP_CLAUSE_TASK_REDUCTION
,
274 /* OpenMP clause: in_reduction (operator:variable_list). */
275 OMP_CLAUSE_IN_REDUCTION
,
277 /* OpenMP clause: copyin (variable_list). */
280 /* OpenMP clause: copyprivate (variable_list). */
281 OMP_CLAUSE_COPYPRIVATE
,
283 /* OpenMP clause: linear (variable-list[:linear-step]). */
286 /* OpenMP clause: affinity([depend-modifier :] variable-list). */
289 /* OpenMP clause: aligned (variable-list[:alignment]). */
292 /* OpenMP clause: allocate ([allocator:]variable-list). */
295 /* OpenMP clause: depend ({in,out,inout}:variable-list). */
298 /* OpenMP clause: nontemporal (variable-list). */
299 OMP_CLAUSE_NONTEMPORAL
,
301 /* OpenMP clause: uniform (argument-list). */
304 /* OpenMP clause: enter (extended-list).
305 to is a deprecated alias when it appears in declare target. */
308 /* OpenMP clause: link (variable-list). */
311 /* OpenMP clause: detach (event-handle). */
314 /* OpenACC clause: use_device (variable-list).
315 OpenMP clause: use_device_ptr (ptr-list). */
316 OMP_CLAUSE_USE_DEVICE_PTR
,
318 /* OpenMP clause: use_device_addr (variable-list). */
319 OMP_CLAUSE_USE_DEVICE_ADDR
,
321 /* OpenMP clause: is_device_ptr (variable-list). */
322 OMP_CLAUSE_IS_DEVICE_PTR
,
324 /* OpenMP clause: inclusive (variable-list). */
325 OMP_CLAUSE_INCLUSIVE
,
327 /* OpenMP clause: exclusive (variable-list). */
328 OMP_CLAUSE_EXCLUSIVE
,
330 /* OpenMP clause: from (variable-list). */
333 /* OpenMP clause: to (variable-list). */
336 /* OpenACC clauses: {copy, copyin, copyout, create, delete, deviceptr,
337 device, host (self), present, present_or_copy (pcopy), present_or_copyin
338 (pcopyin), present_or_copyout (pcopyout), present_or_create (pcreate)}
341 OpenMP clause: map ({alloc:,to:,from:,tofrom:,}variable-list). */
344 /* OpenMP clause: has_device_addr (variable-list). */
345 OMP_CLAUSE_HAS_DEVICE_ADDR
,
347 /* OpenMP clause: doacross ({source,sink}:vec). */
350 /* Internal structure to hold OpenACC cache directive's variable-list.
351 #pragma acc cache (variable-list). */
354 /* OpenACC clause: gang [(gang-argument-list)].
356 gang-argument-list: [gang-argument-list, ] gang-argument
357 gang-argument: [num:] integer-expression
358 | static: size-expression
359 size-expression: * | integer-expression. */
362 /* OpenACC clause: async [(integer-expression)]. */
365 /* OpenACC clause: wait [(integer-expression-list)]. */
368 /* OpenACC clause: auto. */
371 /* OpenACC clause: seq. */
374 /* Internal clause: temporary for combined loops expansion. */
375 OMP_CLAUSE__LOOPTEMP_
,
377 /* Internal clause: temporary for task reductions. */
378 OMP_CLAUSE__REDUCTEMP_
,
380 /* Internal clause: temporary for lastprivate(conditional:). */
381 OMP_CLAUSE__CONDTEMP_
,
383 /* Internal clause: temporary for inscan reductions. */
384 OMP_CLAUSE__SCANTEMP_
,
386 /* OpenACC/OpenMP clause: if (scalar-expression). */
389 /* OpenMP clause: num_threads (integer-expression). */
390 OMP_CLAUSE_NUM_THREADS
,
392 /* OpenMP clause: schedule. */
395 /* OpenMP clause: nowait. */
398 /* OpenMP clause: ordered [(constant-integer-expression)]. */
401 /* OpenACC/OpenMP clause: default. */
404 /* OpenACC/OpenMP clause: collapse (constant-integer-expression). */
407 /* OpenMP clause: untied. */
410 /* OpenMP clause: final (scalar-expression). */
413 /* OpenMP clause: mergeable. */
414 OMP_CLAUSE_MERGEABLE
,
416 /* OpenMP clause: device (integer-expression). */
419 /* OpenMP clause: dist_schedule (static[:chunk-size]). */
420 OMP_CLAUSE_DIST_SCHEDULE
,
422 /* OpenMP clause: inbranch. */
425 /* OpenMP clause: notinbranch. */
426 OMP_CLAUSE_NOTINBRANCH
,
428 /* OpenMP clause: num_teams(integer-expression). */
429 OMP_CLAUSE_NUM_TEAMS
,
431 /* OpenMP clause: thread_limit(integer-expression). */
432 OMP_CLAUSE_THREAD_LIMIT
,
434 /* OpenMP clause: proc_bind ({master,close,spread}). */
435 OMP_CLAUSE_PROC_BIND
,
437 /* OpenMP clause: safelen (constant-integer-expression). */
440 /* OpenMP clause: simdlen (constant-integer-expression). */
443 /* OpenMP clause: device_type ({host,nohost,any}). */
444 OMP_CLAUSE_DEVICE_TYPE
,
446 /* OpenMP clause: for. */
449 /* OpenMP clause: parallel. */
452 /* OpenMP clause: sections. */
455 /* OpenMP clause: taskgroup. */
456 OMP_CLAUSE_TASKGROUP
,
458 /* OpenMP clause: priority (integer-expression). */
461 /* OpenMP clause: grainsize (integer-expression). */
462 OMP_CLAUSE_GRAINSIZE
,
464 /* OpenMP clause: num_tasks (integer-expression). */
465 OMP_CLAUSE_NUM_TASKS
,
467 /* OpenMP clause: nogroup. */
470 /* OpenMP clause: threads. */
473 /* OpenMP clause: simd. */
476 /* OpenMP clause: hint (integer-expression). */
479 /* OpenMP clause: defaultmap (tofrom: scalar). */
480 OMP_CLAUSE_DEFAULTMAP
,
482 /* OpenMP clause: order (concurrent). */
485 /* OpenMP clause: bind (binding). */
488 /* OpenMP clause: filter (integer-expression). */
491 /* Internally used only clause, holding SIMD uid. */
492 OMP_CLAUSE__SIMDUID_
,
494 /* Internally used only clause, flag whether this is SIMT simd
498 /* OpenACC clause: independent. */
499 OMP_CLAUSE_INDEPENDENT
,
501 /* OpenACC clause: worker [( [num:] integer-expression)]. */
504 /* OpenACC clause: vector [( [length:] integer-expression)]. */
507 /* OpenACC clause: num_gangs (integer-expression). */
508 OMP_CLAUSE_NUM_GANGS
,
510 /* OpenACC clause: num_workers (integer-expression). */
511 OMP_CLAUSE_NUM_WORKERS
,
513 /* OpenACC clause: vector_length (integer-expression). */
514 OMP_CLAUSE_VECTOR_LENGTH
,
516 /* OpenACC clause: tile ( size-expr-list ). */
519 /* OpenACC clause: if_present. */
520 OMP_CLAUSE_IF_PRESENT
,
522 /* OpenACC clause: finalize. */
525 /* OpenACC clause: nohost. */
530 #define DEFTREESTRUCT(ENUM, NAME) ENUM,
531 enum tree_node_structure_enum
{
532 #include "treestruct.def"
537 enum omp_clause_schedule_kind
{
538 OMP_CLAUSE_SCHEDULE_STATIC
,
539 OMP_CLAUSE_SCHEDULE_DYNAMIC
,
540 OMP_CLAUSE_SCHEDULE_GUIDED
,
541 OMP_CLAUSE_SCHEDULE_AUTO
,
542 OMP_CLAUSE_SCHEDULE_RUNTIME
,
543 OMP_CLAUSE_SCHEDULE_MASK
= (1 << 3) - 1,
544 OMP_CLAUSE_SCHEDULE_MONOTONIC
= (1 << 3),
545 OMP_CLAUSE_SCHEDULE_NONMONOTONIC
= (1 << 4),
546 OMP_CLAUSE_SCHEDULE_LAST
= 2 * OMP_CLAUSE_SCHEDULE_NONMONOTONIC
- 1
549 enum omp_clause_default_kind
{
550 OMP_CLAUSE_DEFAULT_UNSPECIFIED
,
551 OMP_CLAUSE_DEFAULT_SHARED
,
552 OMP_CLAUSE_DEFAULT_NONE
,
553 OMP_CLAUSE_DEFAULT_PRIVATE
,
554 OMP_CLAUSE_DEFAULT_FIRSTPRIVATE
,
555 OMP_CLAUSE_DEFAULT_PRESENT
,
556 OMP_CLAUSE_DEFAULT_LAST
559 enum omp_clause_defaultmap_kind
{
560 OMP_CLAUSE_DEFAULTMAP_CATEGORY_UNSPECIFIED
,
561 OMP_CLAUSE_DEFAULTMAP_CATEGORY_SCALAR
,
562 OMP_CLAUSE_DEFAULTMAP_CATEGORY_AGGREGATE
,
563 OMP_CLAUSE_DEFAULTMAP_CATEGORY_ALLOCATABLE
,
564 OMP_CLAUSE_DEFAULTMAP_CATEGORY_POINTER
,
565 OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
= 7,
566 OMP_CLAUSE_DEFAULTMAP_ALLOC
= 1 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1),
567 OMP_CLAUSE_DEFAULTMAP_TO
= 2 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1),
568 OMP_CLAUSE_DEFAULTMAP_FROM
= 3 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1),
569 OMP_CLAUSE_DEFAULTMAP_TOFROM
= 4 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1),
570 OMP_CLAUSE_DEFAULTMAP_FIRSTPRIVATE
571 = 5 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1),
572 OMP_CLAUSE_DEFAULTMAP_NONE
= 6 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1),
573 OMP_CLAUSE_DEFAULTMAP_DEFAULT
574 = 7 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1),
575 OMP_CLAUSE_DEFAULTMAP_MASK
= 7 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1)
578 enum omp_clause_bind_kind
{
579 OMP_CLAUSE_BIND_TEAMS
,
580 OMP_CLAUSE_BIND_PARALLEL
,
581 OMP_CLAUSE_BIND_THREAD
584 /* memory-order-clause on OpenMP atomic/flush constructs or
585 argument of atomic_default_mem_order clause. */
586 enum omp_memory_order
{
587 OMP_MEMORY_ORDER_UNSPECIFIED
,
588 OMP_MEMORY_ORDER_RELAXED
,
589 OMP_MEMORY_ORDER_ACQUIRE
,
590 OMP_MEMORY_ORDER_RELEASE
,
591 OMP_MEMORY_ORDER_ACQ_REL
,
592 OMP_MEMORY_ORDER_SEQ_CST
,
593 OMP_MEMORY_ORDER_MASK
= 7,
594 OMP_FAIL_MEMORY_ORDER_UNSPECIFIED
= OMP_MEMORY_ORDER_UNSPECIFIED
* 8,
595 OMP_FAIL_MEMORY_ORDER_RELAXED
= OMP_MEMORY_ORDER_RELAXED
* 8,
596 OMP_FAIL_MEMORY_ORDER_ACQUIRE
= OMP_MEMORY_ORDER_ACQUIRE
* 8,
597 OMP_FAIL_MEMORY_ORDER_RELEASE
= OMP_MEMORY_ORDER_RELEASE
* 8,
598 OMP_FAIL_MEMORY_ORDER_ACQ_REL
= OMP_MEMORY_ORDER_ACQ_REL
* 8,
599 OMP_FAIL_MEMORY_ORDER_SEQ_CST
= OMP_MEMORY_ORDER_SEQ_CST
* 8,
600 OMP_FAIL_MEMORY_ORDER_MASK
= OMP_MEMORY_ORDER_MASK
* 8
602 #define OMP_FAIL_MEMORY_ORDER_SHIFT 3
604 /* There is a TYPE_QUAL value for each type qualifier. They can be
605 combined by bitwise-or to form the complete set of qualifiers for a
608 TYPE_UNQUALIFIED
= 0x0,
609 TYPE_QUAL_CONST
= 0x1,
610 TYPE_QUAL_VOLATILE
= 0x2,
611 TYPE_QUAL_RESTRICT
= 0x4,
612 TYPE_QUAL_ATOMIC
= 0x8
615 /* Standard named or nameless data types of the C compiler. */
646 TI_INTEGER_MINUS_ONE
,
667 /* __bf16 type if supported (used in C++ as std::bfloat16_t). */
670 /* The _FloatN and _FloatNx types must be consecutive, and in the
671 same sequence as the corresponding complex types, which must also
672 be consecutive; _FloatN must come before _FloatNx; the order must
673 also be the same as in the floatn_nx_types array and the RID_*
674 values in c-common.h. This is so that iterations over these
675 types work as intended. */
677 TI_FLOATN_TYPE_FIRST
= TI_FLOAT16_TYPE
,
678 TI_FLOATN_NX_TYPE_FIRST
= TI_FLOAT16_TYPE
,
682 TI_FLOATN_TYPE_LAST
= TI_FLOAT128_TYPE
,
683 #define NUM_FLOATN_TYPES (TI_FLOATN_TYPE_LAST - TI_FLOATN_TYPE_FIRST + 1)
685 TI_FLOATNX_TYPE_FIRST
= TI_FLOAT32X_TYPE
,
688 TI_FLOATNX_TYPE_LAST
= TI_FLOAT128X_TYPE
,
689 TI_FLOATN_NX_TYPE_LAST
= TI_FLOAT128X_TYPE
,
690 #define NUM_FLOATNX_TYPES (TI_FLOATNX_TYPE_LAST - TI_FLOATNX_TYPE_FIRST + 1)
691 #define NUM_FLOATN_NX_TYPES (TI_FLOATN_NX_TYPE_LAST \
692 - TI_FLOATN_NX_TYPE_FIRST \
695 /* Type used by certain backends for __float128, which in C++ should be
696 distinct type from _Float128 for backwards compatibility reasons. */
699 /* Put the complex types after their component types, so that in (sequential)
700 tree streaming we can assert that their component types have already been
701 handled (see tree-streamer.cc:record_common_node). */
702 TI_COMPLEX_INTEGER_TYPE
,
703 TI_COMPLEX_FLOAT_TYPE
,
704 TI_COMPLEX_DOUBLE_TYPE
,
705 TI_COMPLEX_LONG_DOUBLE_TYPE
,
707 TI_COMPLEX_FLOAT16_TYPE
,
708 TI_COMPLEX_FLOATN_NX_TYPE_FIRST
= TI_COMPLEX_FLOAT16_TYPE
,
709 TI_COMPLEX_FLOAT32_TYPE
,
710 TI_COMPLEX_FLOAT64_TYPE
,
711 TI_COMPLEX_FLOAT128_TYPE
,
712 TI_COMPLEX_FLOAT32X_TYPE
,
713 TI_COMPLEX_FLOAT64X_TYPE
,
714 TI_COMPLEX_FLOAT128X_TYPE
,
718 TI_LONG_DOUBLE_PTR_TYPE
,
728 TI_VA_LIST_GPR_COUNTER_FIELD
,
729 TI_VA_LIST_FPR_COUNTER_FIELD
,
732 TI_CONST_TM_PTR_TYPE
,
734 TI_CONST_FENV_T_PTR_TYPE
,
735 TI_FEXCEPT_T_PTR_TYPE
,
736 TI_CONST_FEXCEPT_T_PTR_TYPE
,
737 TI_POINTER_SIZED_TYPE
,
754 TI_SAT_ULLFRACT_TYPE
,
770 TI_SAT_ULLACCUM_TYPE
,
817 /* Nodes below here change during compilation, and should therefore
818 not be in the C++ module's global tree table. */
820 TI_OPTIMIZATION_DEFAULT
,
821 TI_OPTIMIZATION_CURRENT
,
822 TI_TARGET_OPTION_DEFAULT
,
823 TI_TARGET_OPTION_CURRENT
,
824 TI_CURRENT_TARGET_PRAGMA
,
825 TI_CURRENT_OPTIMIZE_PRAGMA
,
833 /* An enumeration of the standard C integer types. These must be
834 ordered so that shorter types appear before longer ones, and so
835 that signed types appear before unsigned ones, for the correct
836 functioning of interpret_integer() in c-lex.cc. */
837 enum integer_type_kind
{
848 itk_unsigned_long_long
,
862 /* A pointer-to-function member type looks like:
869 If __pfn is NULL, it is a NULL pointer-to-member-function.
871 (Because the vtable is always the first thing in the object, we
872 don't need its offset.) If the function is virtual, then PFN is
873 one plus twice the index into the vtable; otherwise, it is just a
874 pointer to the function.
876 Unfortunately, using the lowest bit of PFN doesn't work in
877 architectures that don't impose alignment requirements on function
878 addresses, or that use the lowest bit to tell one ISA from another,
879 for example. For such architectures, we use the lowest bit of
880 DELTA instead of the lowest bit of the PFN, and DELTA will be
882 enum ptrmemfunc_vbit_where_t
{
883 ptrmemfunc_vbit_in_pfn
,
884 ptrmemfunc_vbit_in_delta
887 /* Flags that may be passed in the third argument of decl_attributes, and
888 to handler functions for attributes. */
889 enum attribute_flags
{
890 /* The type passed in is the type of a DECL, and any attributes that
891 should be passed in again to be applied to the DECL rather than the
892 type should be returned. */
893 ATTR_FLAG_DECL_NEXT
= 1,
894 /* The type passed in is a function return type, and any attributes that
895 should be passed in again to be applied to the function type rather
896 than the return type should be returned. */
897 ATTR_FLAG_FUNCTION_NEXT
= 2,
898 /* The type passed in is an array element type, and any attributes that
899 should be passed in again to be applied to the array type rather
900 than the element type should be returned. */
901 ATTR_FLAG_ARRAY_NEXT
= 4,
902 /* The type passed in is a structure, union or enumeration type being
903 created, and should be modified in place. */
904 ATTR_FLAG_TYPE_IN_PLACE
= 8,
905 /* The attributes are being applied by default to a library function whose
906 name indicates known behavior, and should be silently ignored if they
907 are not in fact compatible with the function type. */
908 ATTR_FLAG_BUILT_IN
= 16,
909 /* A given attribute has been parsed as a C++-11 attribute. */
910 ATTR_FLAG_CXX11
= 32,
911 /* The attribute handler is being invoked with an internal argument
912 that may not otherwise be valid when specified in source code. */
913 ATTR_FLAG_INTERNAL
= 64
916 /* Types used to represent sizes. */
917 enum size_type_kind
{
918 stk_sizetype
, /* Normal representation of sizes in bytes. */
919 stk_ssizetype
, /* Signed representation of sizes in bytes. */
920 stk_bitsizetype
, /* Normal representation of sizes in bits. */
921 stk_sbitsizetype
, /* Signed representation of sizes in bits. */
925 /* Flags controlling operand_equal_p() behavior. */
926 enum operand_equal_flag
{
929 OEP_MATCH_SIDE_EFFECTS
= 4,
931 /* Internal within operand_equal_p: */
932 OEP_NO_HASH_CHECK
= 16,
933 /* Internal within inchash::add_expr: */
935 /* Makes operand_equal_p handle more expressions: */
936 OEP_LEXICOGRAPHIC
= 64,
938 /* For OEP_ADDRESS_OF of COMPONENT_REFs, only consider same fields as
939 equivalent rather than also different fields with the same offset. */
940 OEP_ADDRESS_OF_SAME_FIELD
= 256,
941 /* In conjunction with OEP_LEXICOGRAPHIC considers names of declarations
942 of the same kind. Used to compare VLA bounds involving parameters
943 across redeclarations of the same function. */
947 /* Enum and arrays used for tree allocation stats.
948 Keep in sync with tree.cc:tree_node_kind_names. */
949 enum tree_node_kind
{
969 enum annot_expr_kind
{
970 annot_expr_ivdep_kind
,
971 annot_expr_unroll_kind
,
972 annot_expr_no_vector_kind
,
973 annot_expr_vector_kind
,
974 annot_expr_parallel_kind
,
978 /* The kind of a TREE_CLOBBER_P CONSTRUCTOR node. */
980 /* Unspecified, this clobber acts as a store of an undefined value. */
982 /* This clobber ends the lifetime of the storage. */
987 /*---------------------------------------------------------------------------
989 ---------------------------------------------------------------------------*/
990 /* When processing aliases at the symbol table level, we need the
991 declaration of target. For this reason we need to queue aliases and
992 process them after all declarations has been produced. */
993 struct GTY(()) alias_pair
{
998 /* An initialization priority. */
999 typedef unsigned short priority_type
;
1001 /* The type of a callback function for walking over tree structure. */
1002 typedef tree (*walk_tree_fn
) (tree
*, int *, void *);
1004 /* The type of a callback function that represents a custom walk_tree. */
1005 typedef tree (*walk_tree_lh
) (tree
*, int *, tree (*) (tree
*, int *, void *),
1006 void *, hash_set
<tree
> *);
1009 /*---------------------------------------------------------------------------
1010 Main data structures
1011 ---------------------------------------------------------------------------*/
1012 /* A tree node can represent a data type, a variable, an expression
1013 or a statement. Each node has a TREE_CODE which says what kind of
1014 thing it represents. Some common codes are:
1015 INTEGER_TYPE -- represents a type of integers.
1016 ARRAY_TYPE -- represents a type of pointer.
1017 VAR_DECL -- represents a declared variable.
1018 INTEGER_CST -- represents a constant integer value.
1019 PLUS_EXPR -- represents a sum (an expression).
1021 As for the contents of a tree node: there are some fields
1022 that all nodes share. Each TREE_CODE has various special-purpose
1023 fields as well. The fields of a node are never accessed directly,
1024 always through accessor macros. */
1026 /* Every kind of tree node starts with this structure,
1027 so all nodes have these fields.
1029 See the accessor macros, defined below, for documentation of the
1030 fields, and the table below which connects the fields and the
1033 struct GTY(()) tree_base
{
1034 ENUM_BITFIELD(tree_code
) code
: 16;
1036 unsigned side_effects_flag
: 1;
1037 unsigned constant_flag
: 1;
1038 unsigned addressable_flag
: 1;
1039 unsigned volatile_flag
: 1;
1040 unsigned readonly_flag
: 1;
1041 unsigned asm_written_flag
: 1;
1042 unsigned nowarning_flag
: 1;
1043 unsigned visited
: 1;
1045 unsigned used_flag
: 1;
1046 unsigned nothrow_flag
: 1;
1047 unsigned static_flag
: 1;
1048 unsigned public_flag
: 1;
1049 unsigned private_flag
: 1;
1050 unsigned protected_flag
: 1;
1051 unsigned deprecated_flag
: 1;
1052 unsigned default_def_flag
: 1;
1055 /* The bits in the following structure should only be used with
1056 accessor macros that constrain inputs with tree checking. */
1058 unsigned lang_flag_0
: 1;
1059 unsigned lang_flag_1
: 1;
1060 unsigned lang_flag_2
: 1;
1061 unsigned lang_flag_3
: 1;
1062 unsigned lang_flag_4
: 1;
1063 unsigned lang_flag_5
: 1;
1064 unsigned lang_flag_6
: 1;
1065 unsigned saturating_flag
: 1;
1067 unsigned unsigned_flag
: 1;
1068 unsigned packed_flag
: 1;
1069 unsigned user_align
: 1;
1070 unsigned nameless_flag
: 1;
1071 unsigned atomic_flag
: 1;
1072 unsigned unavailable_flag
: 1;
1073 unsigned spare0
: 2;
1075 unsigned spare1
: 8;
1077 /* This field is only used with TREE_TYPE nodes; the only reason it is
1078 present in tree_base instead of tree_type is to save space. The size
1079 of the field must be large enough to hold addr_space_t values.
1080 For CONSTRUCTOR nodes this holds the clobber_kind enum. */
1081 unsigned address_space
: 8;
1084 /* The following fields are present in tree_base to save space. The
1085 nodes using them do not require any of the flags above and so can
1086 make better use of the 4-byte sized word. */
1088 /* The number of HOST_WIDE_INTs in an INTEGER_CST. */
1090 /* The number of HOST_WIDE_INTs if the INTEGER_CST is accessed in
1091 its native precision. */
1092 unsigned char unextended
;
1094 /* The number of HOST_WIDE_INTs if the INTEGER_CST is extended to
1095 wider precisions based on its TYPE_SIGN. */
1096 unsigned char extended
;
1098 /* The number of HOST_WIDE_INTs if the INTEGER_CST is accessed in
1099 offset_int precision, with smaller integers being extended
1100 according to their TYPE_SIGN. This is equal to one of the two
1101 fields above but is cached for speed. */
1102 unsigned char offset
;
1105 /* VEC length. This field is only used with TREE_VEC. */
1108 /* This field is only used with VECTOR_CST. */
1110 /* The value of VECTOR_CST_LOG2_NPATTERNS. */
1111 unsigned int log2_npatterns
: 8;
1113 /* The value of VECTOR_CST_NELTS_PER_PATTERN. */
1114 unsigned int nelts_per_pattern
: 8;
1116 /* For future expansion. */
1117 unsigned int unused
: 16;
1120 /* SSA version number. This field is only used with SSA_NAME. */
1121 unsigned int version
;
1123 /* CHREC_VARIABLE. This field is only used with POLYNOMIAL_CHREC. */
1124 unsigned int chrec_var
;
1126 /* Internal function code. */
1127 enum internal_fn ifn
;
1129 /* OMP_ATOMIC* memory order. */
1130 enum omp_memory_order omp_atomic_memory_order
;
1132 /* The following two fields are used for MEM_REF and TARGET_MEM_REF
1133 expression trees and specify known data non-dependences. For
1134 two memory references in a function they are known to not
1135 alias if dependence_info.clique are equal and dependence_info.base
1136 are distinct. Clique number zero means there is no information,
1137 clique number one is populated from function global information
1138 and thus needs no remapping on transforms like loop unrolling. */
1140 unsigned short clique
;
1141 unsigned short base
;
1143 } GTY((skip(""))) u
;
1146 /* The following table lists the uses of each of the above flags and
1147 for which types of nodes they are defined.
1152 VAR_DECL, PARM_DECL, RESULT_DECL, FUNCTION_DECL, LABEL_DECL
1155 CONSTRUCTOR, IDENTIFIER_NODE
1158 CALL_EXPR_TAILCALL in
1164 PREDICT_EXPR_OUTCOME in
1167 OMP_CLAUSE_MAP_DECL_MAKE_ADDRESSABLE in
1173 VAR_DECL, FUNCTION_DECL
1176 TREE_NO_TRAMPOLINE in
1182 TREE_SYMBOL_REFERENCED in
1186 TARGET_EXPR, WITH_CLEANUP_EXPR
1188 TRY_CATCH_IS_CLEANUP in
1194 TYPE_REF_CAN_ALIAS_ALL in
1195 POINTER_TYPE, REFERENCE_TYPE
1203 TRANSACTION_EXPR_OUTER in
1212 INTEGER_CST, REAL_CST, COMPLEX_CST, VECTOR_CST
1215 VAR_DECL, FUNCTION_DECL
1218 CONSTRUCTOR_NO_CLEARING in
1224 CALL_EXPR_VA_ARG_PACK in
1227 TYPE_CACHED_VALUES_P in
1230 SAVE_EXPR_RESOLVED_P in
1233 OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE in
1234 OMP_CLAUSE_LASTPRIVATE
1236 OMP_CLAUSE_PRIVATE_DEBUG in
1239 OMP_CLAUSE_LINEAR_NO_COPYIN in
1242 OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION in
1245 OMP_CLAUSE_REDUCTION_OMP_ORIG_REF in
1246 OMP_CLAUSE_{,TASK_,IN_}REDUCTION
1248 OMP_CLAUSE_USE_DEVICE_PTR_IF_PRESENT in
1249 OMP_CLAUSE_USE_DEVICE_PTR
1251 TRANSACTION_EXPR_RELAXED in
1254 FALLTHROUGH_LABEL_P in
1257 SSA_NAME_IS_VIRTUAL_OPERAND in
1260 EXPR_LOCATION_WRAPPER_P in
1261 NON_LVALUE_EXPR, VIEW_CONVERT_EXPR
1268 CALL_EXPR_RETURN_SLOT_OPT in
1274 OMP_PARALLEL_COMBINED in
1277 OMP_CLAUSE_PRIVATE_OUTER_REF in
1280 OMP_CLAUSE_LINEAR_NO_COPYOUT in
1283 TYPE_REF_IS_RVALUE in
1295 CALL_FROM_THUNK_P and
1296 CALL_ALLOCA_FOR_VAR_P and
1297 CALL_FROM_NEW_OR_DELETE_P in
1300 OMP_CLAUSE_LINEAR_VARIABLE_STRIDE in
1308 TREE_SIDE_EFFECTS in
1318 TREE_THIS_VOLATILE in
1341 TYPE_SIZES_GIMPLIFIED in
1355 VAR_DECL, FUNCTION_DECL, TYPE_DECL
1356 RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE
1359 SSA_NAME_OCCURS_IN_ABNORMAL_PHI in
1376 INDIRECT_REF, MEM_REF, TARGET_MEM_REF, ARRAY_REF, ARRAY_RANGE_REF
1378 SSA_NAME_IN_FREE_LIST in
1390 IDENTIFIER_TRANSPARENT_ALIAS in
1393 SSA_NAME_POINTS_TO_READONLY_MEMORY in
1405 all trees (used liberally by many passes)
1409 TYPE_REVERSE_STORAGE_ORDER in
1410 RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE, ARRAY_TYPE
1415 VAR_DECL_IS_VIRTUAL_OPERAND in
1430 RECORD_TYPE, UNION_TYPE and QUAL_UNION_TYPE
1432 TYPE_VECTOR_OPAQUE in
1435 SSA_NAME_IS_DEFAULT_DEF in
1438 DECL_NONLOCAL_FRAME in
1441 REF_REVERSE_STORAGE_ORDER in
1442 BIT_FIELD_REF, MEM_REF
1444 FUNC_ADDR_BY_DESCRIPTOR in
1447 CALL_EXPR_BY_DESCRIPTOR in
1452 struct GTY(()) tree_typed
{
1453 struct tree_base base
;
1457 struct GTY(()) tree_common
{
1458 struct tree_typed typed
;
1462 struct GTY(()) tree_int_cst
{
1463 struct tree_typed typed
;
1464 HOST_WIDE_INT val
[1];
1468 struct GTY(()) tree_real_cst
{
1469 struct tree_typed typed
;
1470 struct real_value value
;
1473 struct GTY(()) tree_fixed_cst
{
1474 struct tree_typed typed
;
1475 struct fixed_value
* fixed_cst_ptr
;
1478 struct GTY(()) tree_string
{
1479 struct tree_typed typed
;
1484 struct GTY(()) tree_complex
{
1485 struct tree_typed typed
;
1490 struct GTY(()) tree_vector
{
1491 struct tree_typed typed
;
1492 tree
GTY ((length ("vector_cst_encoded_nelts ((tree) &%h)"))) elts
[1];
1495 struct GTY(()) tree_poly_int_cst
{
1496 struct tree_typed typed
;
1497 tree coeffs
[NUM_POLY_INT_COEFFS
];
1500 struct GTY(()) tree_identifier
{
1501 struct tree_common common
;
1502 struct ht_identifier id
;
1505 struct GTY(()) tree_list
{
1506 struct tree_common common
;
1511 struct GTY(()) tree_vec
{
1512 struct tree_common common
;
1513 tree
GTY ((length ("TREE_VEC_LENGTH ((tree)&%h)"))) a
[1];
1516 /* A single element of a CONSTRUCTOR. VALUE holds the actual value of the
1517 element. INDEX can optionally design the position of VALUE: in arrays,
1518 it is the index where VALUE has to be placed; in structures, it is the
1519 FIELD_DECL of the member. */
1520 struct GTY(()) constructor_elt
{
1525 struct GTY(()) tree_constructor
{
1526 struct tree_typed typed
;
1527 vec
<constructor_elt
, va_gc
> *elts
;
1530 enum omp_clause_depend_kind
1532 OMP_CLAUSE_DEPEND_IN
,
1533 OMP_CLAUSE_DEPEND_OUT
,
1534 OMP_CLAUSE_DEPEND_INOUT
,
1535 OMP_CLAUSE_DEPEND_MUTEXINOUTSET
,
1536 OMP_CLAUSE_DEPEND_INOUTSET
,
1537 OMP_CLAUSE_DEPEND_DEPOBJ
,
1538 OMP_CLAUSE_DEPEND_INVALID
,
1539 OMP_CLAUSE_DEPEND_LAST
1542 enum omp_clause_doacross_kind
1544 OMP_CLAUSE_DOACROSS_SOURCE
,
1545 OMP_CLAUSE_DOACROSS_SINK
,
1546 OMP_CLAUSE_DOACROSS_LAST
1549 enum omp_clause_proc_bind_kind
1551 /* Numbers should match omp_proc_bind_t enum in omp.h. */
1552 OMP_CLAUSE_PROC_BIND_FALSE
= 0,
1553 OMP_CLAUSE_PROC_BIND_TRUE
= 1,
1554 OMP_CLAUSE_PROC_BIND_PRIMARY
= 2,
1555 OMP_CLAUSE_PROC_BIND_MASTER
= 2,
1556 OMP_CLAUSE_PROC_BIND_CLOSE
= 3,
1557 OMP_CLAUSE_PROC_BIND_SPREAD
= 4,
1558 OMP_CLAUSE_PROC_BIND_LAST
1561 enum omp_clause_device_type_kind
1563 OMP_CLAUSE_DEVICE_TYPE_HOST
= 1,
1564 OMP_CLAUSE_DEVICE_TYPE_NOHOST
= 2,
1565 OMP_CLAUSE_DEVICE_TYPE_ANY
= 3
1568 enum omp_clause_linear_kind
1570 OMP_CLAUSE_LINEAR_DEFAULT
,
1571 OMP_CLAUSE_LINEAR_REF
,
1572 OMP_CLAUSE_LINEAR_VAL
,
1573 OMP_CLAUSE_LINEAR_UVAL
1576 struct GTY(()) tree_exp
{
1577 struct tree_typed typed
;
1579 tree
GTY ((length ("TREE_OPERAND_LENGTH ((tree)&%h)"))) operands
[1];
1582 /* Immediate use linking structure. This structure is used for maintaining
1583 a doubly linked list of uses of an SSA_NAME. */
1584 struct GTY(()) ssa_use_operand_t
{
1585 struct ssa_use_operand_t
* GTY((skip(""))) prev
;
1586 struct ssa_use_operand_t
* GTY((skip(""))) next
;
1587 /* Immediate uses for a given SSA name are maintained as a cyclic
1588 list. To recognize the root of this list, the location field
1589 needs to point to the original SSA name. Since statements and
1590 SSA names are of different data types, we need this union. See
1591 the explanation in struct imm_use_iterator. */
1592 union { gimple
*stmt
; tree ssa_name
; } GTY((skip(""))) loc
;
1593 tree
*GTY((skip(""))) use
;
1596 struct GTY(()) tree_ssa_name
{
1597 struct tree_typed typed
;
1599 /* _DECL wrapped by this SSA name. */
1602 /* Statement that defines this SSA name. */
1605 /* Value range information. */
1606 union ssa_name_info_type
{
1607 /* Range and aliasing info for pointers. */
1608 struct GTY ((tag ("0"))) ptr_info_def
*ptr_info
;
1609 /* Range info for everything else. */
1610 struct GTY ((tag ("1"))) vrange_storage
* range_info
;
1611 } GTY ((desc ("%1.typed.type ?" \
1612 "!POINTER_TYPE_P (TREE_TYPE ((tree)&%1)) : 2"))) info
;
1613 /* Immediate uses list for this SSA_NAME. */
1614 struct ssa_use_operand_t imm_uses
;
1617 struct GTY(()) phi_arg_d
{
1618 /* imm_use MUST be the first element in struct because we do some
1619 pointer arithmetic with it. See phi_arg_index_from_use. */
1620 struct ssa_use_operand_t imm_use
;
1625 struct GTY(()) tree_omp_clause
{
1626 struct tree_common common
;
1628 enum omp_clause_code code
;
1629 union omp_clause_subcode
{
1630 enum omp_clause_default_kind default_kind
;
1631 enum omp_clause_schedule_kind schedule_kind
;
1632 enum omp_clause_depend_kind depend_kind
;
1633 enum omp_clause_doacross_kind doacross_kind
;
1634 /* See include/gomp-constants.h for enum gomp_map_kind's values. */
1635 unsigned int map_kind
;
1636 enum omp_clause_proc_bind_kind proc_bind_kind
;
1637 enum tree_code reduction_code
;
1638 enum omp_clause_linear_kind linear_kind
;
1639 enum tree_code if_modifier
;
1640 enum omp_clause_defaultmap_kind defaultmap_kind
;
1641 enum omp_clause_bind_kind bind_kind
;
1642 enum omp_clause_device_type_kind device_type_kind
;
1643 } GTY ((skip
)) subcode
;
1645 /* The gimplification of OMP_CLAUSE_REDUCTION_{INIT,MERGE} for omp-low's
1647 gimple_seq gimple_reduction_init
;
1648 gimple_seq gimple_reduction_merge
;
1650 tree
GTY ((length ("omp_clause_num_ops[OMP_CLAUSE_CODE ((tree)&%h)]")))
1654 struct GTY(()) tree_block
{
1655 struct tree_base base
;
1661 location_t end_locus
;
1664 vec
<tree
, va_gc
> *nonlocalized_vars
;
1668 tree abstract_origin
;
1669 tree fragment_origin
;
1670 tree fragment_chain
;
1672 /* Pointer to the DWARF lexical block. */
1673 struct die_struct
*die
;
1676 struct GTY(()) tree_type_common
{
1677 struct tree_common common
;
1683 ENUM_BITFIELD(machine_mode
) mode
: MACHINE_MODE_BITSIZE
;
1685 unsigned int precision
: 16;
1686 unsigned lang_flag_0
: 1;
1687 unsigned lang_flag_1
: 1;
1688 unsigned lang_flag_2
: 1;
1689 unsigned lang_flag_3
: 1;
1690 unsigned lang_flag_4
: 1;
1691 unsigned lang_flag_5
: 1;
1692 unsigned lang_flag_6
: 1;
1693 unsigned lang_flag_7
: 1;
1695 /* TYPE_ALIGN in log2; this has to be large enough to hold values
1696 of the maximum of BIGGEST_ALIGNMENT and MAX_OFILE_ALIGNMENT,
1697 the latter being usually the larger. For ELF it is 8<<28,
1698 so we need to store the value 32 (not 31, as we need the zero
1699 as well), hence six bits. */
1701 /* TYPE_STRING_FLAG for INTEGER_TYPE and ARRAY_TYPE.
1702 TYPE_CXX_ODR_P for RECORD_TYPE and UNION_TYPE. */
1703 unsigned string_flag
: 1;
1704 unsigned no_force_blk_flag
: 1;
1706 unsigned warn_if_not_align
: 6;
1707 unsigned needs_constructing_flag
: 1;
1708 unsigned transparent_aggr_flag
: 1;
1710 unsigned contains_placeholder_bits
: 2;
1711 unsigned restrict_flag
: 1;
1712 unsigned typeless_storage
: 1;
1713 unsigned empty_flag
: 1;
1714 unsigned indivisible_p
: 1;
1715 unsigned no_named_args_stdarg_p
: 1;
1718 alias_set_type alias_set
;
1721 union tree_type_symtab
{
1722 int GTY ((tag ("TYPE_SYMTAB_IS_ADDRESS"))) address
;
1723 struct die_struct
* GTY ((tag ("TYPE_SYMTAB_IS_DIE"))) die
;
1724 } GTY ((desc ("debug_hooks->tree_type_symtab_field"))) symtab
;
1732 struct GTY(()) tree_type_with_lang_specific
{
1733 struct tree_type_common common
;
1734 /* Points to a structure whose details depend on the language in use. */
1735 struct lang_type
*lang_specific
;
1738 struct GTY(()) tree_type_non_common
{
1739 struct tree_type_with_lang_specific with_lang_specific
;
1746 struct GTY (()) tree_binfo
{
1747 struct tree_common common
;
1753 vec
<tree
, va_gc
> *base_accesses
;
1759 vec
<tree
, va_gc
> base_binfos
;
1762 struct GTY(()) tree_decl_minimal
{
1763 struct tree_common common
;
1770 struct GTY(()) tree_decl_common
{
1771 struct tree_decl_minimal common
;
1774 ENUM_BITFIELD(machine_mode
) mode
: MACHINE_MODE_BITSIZE
;
1776 unsigned nonlocal_flag
: 1;
1777 unsigned virtual_flag
: 1;
1778 unsigned ignored_flag
: 1;
1779 unsigned abstract_flag
: 1;
1780 unsigned artificial_flag
: 1;
1781 unsigned preserve_flag
: 1;
1782 unsigned debug_expr_is_from
: 1;
1784 unsigned lang_flag_0
: 1;
1785 unsigned lang_flag_1
: 1;
1786 unsigned lang_flag_2
: 1;
1787 unsigned lang_flag_3
: 1;
1788 unsigned lang_flag_4
: 1;
1789 unsigned lang_flag_5
: 1;
1790 unsigned lang_flag_6
: 1;
1791 unsigned lang_flag_7
: 1;
1792 unsigned lang_flag_8
: 1;
1794 /* In VAR_DECL and PARM_DECL, this is DECL_REGISTER
1795 In TRANSLATION_UNIT_DECL, this is TRANSLATION_UNIT_WARN_EMPTY_P.
1796 In FIELD_DECL, this is DECL_FIELD_ABI_IGNORED. */
1797 unsigned decl_flag_0
: 1;
1798 /* In FIELD_DECL, this is DECL_BIT_FIELD
1799 In VAR_DECL and FUNCTION_DECL, this is DECL_EXTERNAL.
1800 In TYPE_DECL, this is TYPE_DECL_SUPPRESS_DEBUG. */
1801 unsigned decl_flag_1
: 1;
1802 /* In FIELD_DECL, this is DECL_NONADDRESSABLE_P
1803 In VAR_DECL, PARM_DECL and RESULT_DECL, this is
1804 DECL_HAS_VALUE_EXPR_P. */
1805 unsigned decl_flag_2
: 1;
1806 /* In FIELD_DECL, this is DECL_PADDING_P. */
1807 unsigned decl_flag_3
: 1;
1808 /* Logically, these two would go in a theoretical base shared by var and
1810 unsigned not_gimple_reg_flag
: 1;
1811 /* In VAR_DECL, PARM_DECL and RESULT_DECL, this is DECL_BY_REFERENCE. */
1812 unsigned decl_by_reference_flag
: 1;
1813 /* In a VAR_DECL and PARM_DECL, this is DECL_READ_P. */
1814 unsigned decl_read_flag
: 1;
1815 /* In a VAR_DECL or RESULT_DECL, this is DECL_NONSHAREABLE. */
1816 /* In a PARM_DECL, this is DECL_HIDDEN_STRING_LENGTH. */
1817 unsigned decl_nonshareable_flag
: 1;
1819 /* DECL_OFFSET_ALIGN, used only for FIELD_DECLs. */
1820 unsigned int off_align
: 6;
1822 /* DECL_ALIGN. It should have the same size as TYPE_ALIGN. */
1823 unsigned int align
: 6;
1825 /* DECL_WARN_IF_NOT_ALIGN. It should have the same size as
1826 TYPE_WARN_IF_NOT_ALIGN. */
1827 unsigned int warn_if_not_align
: 6;
1829 /* In FIELD_DECL, this is DECL_NOT_FLEXARRAY. */
1830 unsigned int decl_not_flexarray
: 1;
1832 /* 5 bits unused. */
1834 /* UID for points-to sets, stable over copying from inlining. */
1835 unsigned int pt_uid
;
1840 tree abstract_origin
;
1842 /* Points to a structure whose details depend on the language in use. */
1843 struct lang_decl
*lang_specific
;
1846 struct GTY(()) tree_decl_with_rtl
{
1847 struct tree_decl_common common
;
1851 struct GTY(()) tree_field_decl
{
1852 struct tree_decl_common common
;
1855 tree bit_field_type
;
1861 struct GTY(()) tree_label_decl
{
1862 struct tree_decl_with_rtl common
;
1864 int eh_landing_pad_nr
;
1867 struct GTY(()) tree_result_decl
{
1868 struct tree_decl_with_rtl common
;
1871 struct GTY(()) tree_const_decl
{
1872 struct tree_decl_common common
;
1875 struct GTY(()) tree_parm_decl
{
1876 struct tree_decl_with_rtl common
;
1880 struct GTY(()) tree_decl_with_vis
{
1881 struct tree_decl_with_rtl common
;
1882 tree assembler_name
;
1883 struct symtab_node
*symtab_node
;
1885 /* Belong to VAR_DECL exclusively. */
1886 unsigned defer_output
: 1;
1887 unsigned hard_register
: 1;
1888 unsigned common_flag
: 1;
1889 unsigned in_text_section
: 1;
1890 unsigned in_constant_pool
: 1;
1891 unsigned dllimport_flag
: 1;
1892 /* Don't belong to VAR_DECL exclusively. */
1893 unsigned weak_flag
: 1;
1895 unsigned seen_in_bind_expr
: 1;
1896 unsigned comdat_flag
: 1;
1897 /* Used for FUNCTION_DECL, VAR_DECL and in C++ for TYPE_DECL. */
1898 ENUM_BITFIELD(symbol_visibility
) visibility
: 2;
1899 unsigned visibility_specified
: 1;
1901 /* Belong to FUNCTION_DECL exclusively. */
1902 unsigned init_priority_p
: 1;
1903 /* Used by C++ only. Might become a generic decl flag. */
1904 unsigned shadowed_for_var_p
: 1;
1905 /* Belong to FUNCTION_DECL exclusively. */
1906 unsigned cxx_constructor
: 1;
1907 /* Belong to FUNCTION_DECL exclusively. */
1908 unsigned cxx_destructor
: 1;
1909 /* Belong to FUNCTION_DECL exclusively. */
1911 /* Belong to FUNCTION_DECL exclusively. */
1912 unsigned regdecl_flag
: 1;
1913 /* 14 unused bits. */
1914 /* 32 more unused on 64 bit HW. */
1917 struct GTY(()) tree_var_decl
{
1918 struct tree_decl_with_vis common
;
1921 struct GTY(()) tree_decl_non_common
{
1922 struct tree_decl_with_vis common
;
1923 /* Almost all FE's use this. */
1927 /* Classify a special function declaration type. */
1929 enum function_decl_type
1939 /* FUNCTION_DECL inherits from DECL_NON_COMMON because of the use of the
1940 arguments/result/saved_tree fields by front ends. It was either inherit
1941 FUNCTION_DECL from non_common, or inherit non_common from FUNCTION_DECL,
1942 which seemed a bit strange. */
1944 struct GTY(()) tree_function_decl
{
1945 struct tree_decl_non_common common
;
1949 /* Arguments of the function. */
1951 /* The personality function. Used for stack unwinding. */
1954 /* Function specific options that are used by this function. */
1955 tree function_specific_target
; /* target options */
1956 tree function_specific_optimization
; /* optimization options */
1958 /* Generic function body. */
1960 /* Index within a virtual table. */
1963 /* In a FUNCTION_DECL this is DECL_UNCHECKED_FUNCTION_CODE. */
1964 unsigned int function_code
;
1966 ENUM_BITFIELD(built_in_class
) built_in_class
: 2;
1967 unsigned static_ctor_flag
: 1;
1968 unsigned static_dtor_flag
: 1;
1969 unsigned uninlinable
: 1;
1970 unsigned possibly_inlined
: 1;
1971 unsigned novops_flag
: 1;
1972 unsigned returns_twice_flag
: 1;
1974 unsigned malloc_flag
: 1;
1975 unsigned declared_inline_flag
: 1;
1976 unsigned no_inline_warning_flag
: 1;
1977 unsigned no_instrument_function_entry_exit
: 1;
1978 unsigned no_limit_stack
: 1;
1979 unsigned disregard_inline_limits
: 1;
1980 unsigned pure_flag
: 1;
1981 unsigned looping_const_or_pure_flag
: 1;
1983 /* Align the bitfield to boundary of a byte. */
1984 ENUM_BITFIELD(function_decl_type
) decl_type
: 2;
1985 unsigned has_debug_args_flag
: 1;
1986 unsigned versioned_function
: 1;
1987 unsigned replaceable_operator
: 1;
1989 /* 11 bits left for future expansion. */
1990 /* 32 bits on 64-bit HW. */
1993 struct GTY(()) tree_translation_unit_decl
{
1994 struct tree_decl_common common
;
1995 /* Source language of this translation unit. Used for DWARF output. */
1996 const char *language
;
1997 /* TODO: Non-optimization used to build this translation unit. */
1998 /* TODO: Root of a partial DWARF tree for global types and decls. */
2001 struct GTY(()) tree_type_decl
{
2002 struct tree_decl_non_common common
;
2006 struct GTY ((chain_next ("%h.next"), chain_prev ("%h.prev"))) tree_statement_list_node
2008 struct tree_statement_list_node
*prev
;
2009 struct tree_statement_list_node
*next
;
2013 struct GTY(()) tree_statement_list
2015 struct tree_typed typed
;
2016 struct tree_statement_list_node
*head
;
2017 struct tree_statement_list_node
*tail
;
2021 /* Optimization options used by a function. */
2023 struct GTY(()) tree_optimization_option
{
2024 struct tree_base base
;
2026 /* The optimization options used by the user. */
2027 struct cl_optimization
*opts
;
2029 /* Target optabs for this set of optimization options. This is of
2030 type `struct target_optabs *'. */
2031 void *GTY ((atomic
)) optabs
;
2033 /* The value of this_target_optabs against which the optabs above were
2035 struct target_optabs
*GTY ((skip
)) base_optabs
;
2038 /* Forward declaration, defined in target-globals.h. */
2040 class GTY(()) target_globals
;
2042 /* Target options used by a function. */
2044 struct GTY(()) tree_target_option
{
2045 struct tree_base base
;
2047 /* Target globals for the corresponding target option. */
2048 class target_globals
*globals
;
2050 /* The optimization options used by the user. */
2051 struct cl_target_option
*opts
;
2054 /* Define the overall contents of a tree node.
2055 It may be any of the structures declared above
2056 for various types of node. */
2057 union GTY ((ptr_alias (union lang_tree_node
),
2058 desc ("tree_node_structure (&%h)"), variable_size
)) tree_node
{
2059 struct tree_base
GTY ((tag ("TS_BASE"))) base
;
2060 struct tree_typed
GTY ((tag ("TS_TYPED"))) typed
;
2061 struct tree_common
GTY ((tag ("TS_COMMON"))) common
;
2062 struct tree_int_cst
GTY ((tag ("TS_INT_CST"))) int_cst
;
2063 struct tree_poly_int_cst
GTY ((tag ("TS_POLY_INT_CST"))) poly_int_cst
;
2064 struct tree_real_cst
GTY ((tag ("TS_REAL_CST"))) real_cst
;
2065 struct tree_fixed_cst
GTY ((tag ("TS_FIXED_CST"))) fixed_cst
;
2066 struct tree_vector
GTY ((tag ("TS_VECTOR"))) vector
;
2067 struct tree_string
GTY ((tag ("TS_STRING"))) string
;
2068 struct tree_complex
GTY ((tag ("TS_COMPLEX"))) complex;
2069 struct tree_identifier
GTY ((tag ("TS_IDENTIFIER"))) identifier
;
2070 struct tree_decl_minimal
GTY((tag ("TS_DECL_MINIMAL"))) decl_minimal
;
2071 struct tree_decl_common
GTY ((tag ("TS_DECL_COMMON"))) decl_common
;
2072 struct tree_decl_with_rtl
GTY ((tag ("TS_DECL_WRTL"))) decl_with_rtl
;
2073 struct tree_decl_non_common
GTY ((tag ("TS_DECL_NON_COMMON")))
2075 struct tree_parm_decl
GTY ((tag ("TS_PARM_DECL"))) parm_decl
;
2076 struct tree_decl_with_vis
GTY ((tag ("TS_DECL_WITH_VIS"))) decl_with_vis
;
2077 struct tree_var_decl
GTY ((tag ("TS_VAR_DECL"))) var_decl
;
2078 struct tree_field_decl
GTY ((tag ("TS_FIELD_DECL"))) field_decl
;
2079 struct tree_label_decl
GTY ((tag ("TS_LABEL_DECL"))) label_decl
;
2080 struct tree_result_decl
GTY ((tag ("TS_RESULT_DECL"))) result_decl
;
2081 struct tree_const_decl
GTY ((tag ("TS_CONST_DECL"))) const_decl
;
2082 struct tree_type_decl
GTY ((tag ("TS_TYPE_DECL"))) type_decl
;
2083 struct tree_function_decl
GTY ((tag ("TS_FUNCTION_DECL"))) function_decl
;
2084 struct tree_translation_unit_decl
GTY ((tag ("TS_TRANSLATION_UNIT_DECL")))
2085 translation_unit_decl
;
2086 struct tree_type_common
GTY ((tag ("TS_TYPE_COMMON"))) type_common
;
2087 struct tree_type_with_lang_specific
GTY ((tag ("TS_TYPE_WITH_LANG_SPECIFIC")))
2088 type_with_lang_specific
;
2089 struct tree_type_non_common
GTY ((tag ("TS_TYPE_NON_COMMON")))
2091 struct tree_list
GTY ((tag ("TS_LIST"))) list
;
2092 struct tree_vec
GTY ((tag ("TS_VEC"))) vec
;
2093 struct tree_exp
GTY ((tag ("TS_EXP"))) exp
;
2094 struct tree_ssa_name
GTY ((tag ("TS_SSA_NAME"))) ssa_name
;
2095 struct tree_block
GTY ((tag ("TS_BLOCK"))) block
;
2096 struct tree_binfo
GTY ((tag ("TS_BINFO"))) binfo
;
2097 struct tree_statement_list
GTY ((tag ("TS_STATEMENT_LIST"))) stmt_list
;
2098 struct tree_constructor
GTY ((tag ("TS_CONSTRUCTOR"))) constructor
;
2099 struct tree_omp_clause
GTY ((tag ("TS_OMP_CLAUSE"))) omp_clause
;
2100 struct tree_optimization_option
GTY ((tag ("TS_OPTIMIZATION"))) optimization
;
2101 struct tree_target_option
GTY ((tag ("TS_TARGET_OPTION"))) target_option
;
2104 /* Structure describing an attribute and a function to handle it. */
2105 struct attribute_spec
{
2106 /* The name of the attribute (without any leading or trailing __),
2107 or NULL to mark the end of a table of attributes. */
2109 /* The minimum length of the list of arguments of the attribute. */
2111 /* The maximum length of the list of arguments of the attribute
2112 (-1 for no maximum). It can also be -2 for fake attributes
2113 created for the sake of -Wno-attributes; in that case, we
2114 should skip the balanced token sequence when parsing the attribute. */
2116 /* Whether this attribute requires a DECL. If it does, it will be passed
2117 from types of DECLs, function return types and array element types to
2118 the DECLs, function types and array types respectively; but when
2119 applied to a type in any other circumstances, it will be ignored with
2120 a warning. (If greater control is desired for a given attribute,
2121 this should be false, and the flags argument to the handler may be
2122 used to gain greater control in that case.) */
2124 /* Whether this attribute requires a type. If it does, it will be passed
2125 from a DECL to the type of that DECL. */
2127 /* Whether this attribute requires a function (or method) type. If it does,
2128 it will be passed from a function pointer type to the target type,
2129 and from a function return type (which is not itself a function
2130 pointer type) to the function type. */
2131 bool function_type_required
;
2132 /* Specifies if attribute affects type's identity. */
2133 bool affects_type_identity
;
2134 /* Function to handle this attribute. NODE points to a tree[3] array,
2135 where node[0] is the node to which the attribute is to be applied;
2136 node[1] is the last pushed/merged declaration if one exists, and node[2]
2137 may be the declaration for node[0]. If a DECL, it should be modified in
2138 place; if a TYPE, a copy should be created. NAME is the canonicalized
2139 name of the attribute i.e. without any leading or trailing underscores.
2140 ARGS is the TREE_LIST of the arguments (which may be NULL). FLAGS gives
2141 further information about the context of the attribute. Afterwards, the
2142 attributes will be added to the DECL_ATTRIBUTES or TYPE_ATTRIBUTES, as
2143 appropriate, unless *NO_ADD_ATTRS is set to true (which should be done on
2144 error, as well as in any other cases when the attributes should not be
2145 added to the DECL or TYPE). Depending on FLAGS, any attributes to be
2146 applied to another type or DECL later may be returned;
2147 otherwise the return value should be NULL_TREE. This pointer may be
2148 NULL if no special handling is required beyond the checks implied
2149 by the rest of this structure. */
2150 tree (*handler
) (tree
*node
, tree name
, tree args
,
2151 int flags
, bool *no_add_attrs
);
2153 /* Specifies the name of an attribute that's mutually exclusive with
2154 this one, and whether the relationship applies to the function,
2155 variable, or type form of the attribute. */
2163 /* An array of attribute exclusions describing names of other attributes
2164 that this attribute is mutually exclusive with. */
2165 const exclusions
*exclude
;
2168 /* These functions allow a front-end to perform a manual layout of a
2169 RECORD_TYPE. (For instance, if the placement of subsequent fields
2170 depends on the placement of fields so far.) Begin by calling
2171 start_record_layout. Then, call place_field for each of the
2172 fields. Then, call finish_record_layout. See layout_type for the
2173 default way in which these functions are used. */
2174 typedef struct record_layout_info_s
{
2175 /* The RECORD_TYPE that we are laying out. */
2177 /* The offset into the record so far, in bytes, not including bits in
2180 /* The last known alignment of SIZE. */
2181 unsigned int offset_align
;
2182 /* The bit position within the last OFFSET_ALIGN bits, in bits. */
2184 /* The alignment of the record so far, in bits. */
2185 unsigned int record_align
;
2186 /* The alignment of the record so far, ignoring #pragma pack and
2187 __attribute__ ((packed)), in bits. */
2188 unsigned int unpacked_align
;
2189 /* The previous field laid out. */
2191 /* The static variables (i.e., class variables, as opposed to
2192 instance variables) encountered in T. */
2193 vec
<tree
, va_gc
> *pending_statics
;
2194 /* Bits remaining in the current alignment group */
2195 int remaining_in_alignment
;
2196 /* True if we've seen a packed field that didn't have normal
2197 alignment anyway. */
2198 int packed_maybe_necessary
;
2199 } *record_layout_info
;
2201 /* Iterator for going through the function arguments. */
2202 struct function_args_iterator
{
2203 tree next
; /* TREE_LIST pointing to the next argument */
2206 /* Structures to map from a tree to another tree. */
2207 struct GTY(()) tree_map_base
{
2211 /* Map from a tree to another tree. */
2213 struct GTY((for_user
)) tree_map
{
2214 struct tree_map_base base
;
2219 /* Map from a decl tree to another tree. */
2220 struct GTY((for_user
)) tree_decl_map
{
2221 struct tree_map_base base
;
2225 /* Map from a tree to an int. */
2226 struct GTY((for_user
)) tree_int_map
{
2227 struct tree_map_base base
;
2231 /* Map from a decl tree to a tree vector. */
2232 struct GTY((for_user
)) tree_vec_map
{
2233 struct tree_map_base base
;
2234 vec
<tree
, va_gc
> *to
;
2237 /* Abstract iterators for CALL_EXPRs. These static inline definitions
2238 have to go towards the end of tree.h so that union tree_node is fully
2239 defined by this point. */
2241 /* Structure containing iterator state. */
2242 struct call_expr_arg_iterator
{
2243 tree t
; /* the call_expr */
2244 int n
; /* argument count */
2245 int i
; /* next argument index */
2248 struct const_call_expr_arg_iterator
{
2249 const_tree t
; /* the call_expr */
2250 int n
; /* argument count */
2251 int i
; /* next argument index */
2254 /* The builtin_info structure holds the FUNCTION_DECL of the standard builtin
2255 function, and flags. */
2256 struct GTY(()) builtin_info_type
{
2258 /* Whether the user can use <xxx> instead of explicitly using calls
2259 to __builtin_<xxx>. */
2260 unsigned implicit_p
: 1;
2261 /* Whether the user has provided a declaration of <xxx>. */
2262 unsigned declared_p
: 1;
2265 /* Information about a _FloatN or _FloatNx type that may be
2267 struct floatn_type_info
{
2268 /* The number N in the type name. */
2270 /* Whether it is an extended type _FloatNx (true) or an interchange
2276 /*---------------------------------------------------------------------------
2278 ---------------------------------------------------------------------------*/
2279 /* Matrix describing the structures contained in a given tree code. */
2280 extern bool tree_contains_struct
[MAX_TREE_CODES
][64];
2282 /* Class of tree given its code. */
2283 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
2284 #define END_OF_BASE_TREE_CODES tcc_exceptional,
2286 #if __cpp_inline_variables < 201606L
2288 struct tree_code_type_tmpl
{
2289 static constexpr enum tree_code_class tree_code_type
[] = {
2290 #include "all-tree.def"
2295 constexpr enum tree_code_class tree_code_type_tmpl
<N
>::tree_code_type
[];
2297 constexpr inline enum tree_code_class tree_code_type
[] = {
2298 #include "all-tree.def"
2303 #undef END_OF_BASE_TREE_CODES
2305 /* Each tree code class has an associated string representation.
2306 These must correspond to the tree_code_class entries. */
2307 extern const char *const tree_code_class_strings
[];
2309 /* Number of argument-words in each kind of tree-node. */
2311 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
2312 #define END_OF_BASE_TREE_CODES 0,
2314 #if __cpp_inline_variables < 201606L
2316 struct tree_code_length_tmpl
{
2317 static constexpr unsigned char tree_code_length
[] = {
2318 #include "all-tree.def"
2323 constexpr unsigned char tree_code_length_tmpl
<N
>::tree_code_length
[];
2325 constexpr inline unsigned char tree_code_length
[] = {
2326 #include "all-tree.def"
2331 #undef END_OF_BASE_TREE_CODES
2333 /* Vector of all alias pairs for global symbols. */
2334 extern GTY(()) vec
<alias_pair
, va_gc
> *alias_pairs
;
2336 /* Names of all the built_in classes. */
2337 extern const char *const built_in_class_names
[BUILT_IN_LAST
];
2339 /* Names of all the built_in functions. */
2340 extern const char * built_in_names
[(int) END_BUILTINS
];
2342 /* Number of operands and names for each OMP_CLAUSE node. */
2343 extern unsigned const char omp_clause_num_ops
[];
2344 extern const char * const omp_clause_code_name
[];
2345 extern const char *user_omp_clause_code_name (tree
, bool);
2347 /* A vector of all translation-units. */
2348 extern GTY (()) vec
<tree
, va_gc
> *all_translation_units
;
2350 /* Vector of standard trees used by the C compiler. */
2351 extern GTY(()) tree global_trees
[TI_MAX
];
2353 /* The standard C integer types. Use integer_type_kind to index into
2355 extern GTY(()) tree integer_types
[itk_none
];
2357 /* Types used to represent sizes. */
2358 extern GTY(()) tree sizetype_tab
[(int) stk_type_kind_last
];
2360 /* Arrays for keeping track of tree node statistics. */
2361 extern uint64_t tree_node_counts
[];
2362 extern uint64_t tree_node_sizes
[];
2364 /* True if we are in gimple form and the actions of the folders need to
2365 be restricted. False if we are not in gimple form and folding is not
2366 restricted to creating gimple expressions. */
2367 extern bool in_gimple_form
;
2369 /* Functional interface to the builtin functions. */
2370 extern GTY(()) builtin_info_type builtin_info
[(int)END_BUILTINS
];
2372 /* If nonzero, an upper limit on alignment of structure fields, in bits, */
2373 extern unsigned int maximum_field_alignment
;
2375 /* Points to the FUNCTION_DECL of the function whose body we are reading. */
2376 extern GTY(()) tree current_function_decl
;
2378 /* Nonzero means a FUNC_BEGIN label was emitted. */
2379 extern GTY(()) const char * current_function_func_begin_label
;
2381 /* Information about the _FloatN and _FloatNx types. */
2382 extern const floatn_type_info floatn_nx_types
[NUM_FLOATN_NX_TYPES
];
2384 #endif // GCC_TREE_CORE_H