1 /* Core data structures for the 'tree' type.
2 Copyright (C) 1989-2024 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 /* Nonzero if this is a function expected to end with an exception. */
99 #define ECF_XTHROW (1 << 16)
101 /* Call argument flags. */
103 /* Nonzero if the argument is not used by the function. */
104 #define EAF_UNUSED (1 << 1)
106 /* Following flags come in pairs. First one is about direct dereferences
107 from the parameter, while the second is about memory reachable by
108 recursive dereferences. */
110 /* Nonzero if memory reached by the argument is not clobbered. */
111 #define EAF_NO_DIRECT_CLOBBER (1 << 2)
112 #define EAF_NO_INDIRECT_CLOBBER (1 << 3)
114 /* Nonzero if the argument does not escape. */
115 #define EAF_NO_DIRECT_ESCAPE (1 << 4)
116 #define EAF_NO_INDIRECT_ESCAPE (1 << 5)
118 /* Nonzero if the argument does not escape to return value. */
119 #define EAF_NOT_RETURNED_DIRECTLY (1 << 6)
120 #define EAF_NOT_RETURNED_INDIRECTLY (1 << 7)
122 /* Nonzero if the argument is not read. */
123 #define EAF_NO_DIRECT_READ (1 << 8)
124 #define EAF_NO_INDIRECT_READ (1 << 9)
126 /* Call return flags. */
127 /* Mask for the argument number that is returned. Lower two bits of
128 the return flags, encodes argument slots zero to three. */
129 #define ERF_RETURN_ARG_MASK (3)
131 /* Nonzero if the return value is equal to the argument number
132 flags & ERF_RETURN_ARG_MASK. */
133 #define ERF_RETURNS_ARG (1 << 2)
135 /* Nonzero if the return value does not alias with anything. Functions
136 with the malloc attribute have this set on their return value. */
137 #define ERF_NOALIAS (1 << 3)
140 /*---------------------------------------------------------------------------
142 ---------------------------------------------------------------------------*/
143 /* Codes of tree nodes. */
144 #define DEFTREECODE(SYM, STRING, TYPE, NARGS) SYM,
145 #define END_OF_BASE_TREE_CODES LAST_AND_UNUSED_TREE_CODE,
148 #include "all-tree.def"
153 #undef END_OF_BASE_TREE_CODES
155 /* Number of language-independent tree codes. */
156 #define NUM_TREE_CODES \
157 ((int) LAST_AND_UNUSED_TREE_CODE)
159 #define CODE_CONTAINS_STRUCT(CODE, STRUCT) \
160 (tree_contains_struct[(CODE)][(STRUCT)])
163 /* Classify which part of the compiler has defined a given builtin function.
164 Note that we assume below that this is no more than two bits. */
165 enum built_in_class
{
172 /* Last marker used for LTO stremaing of built_in_class. We cannot add it
173 to the enum since we need the enumb to fit in 2 bits. */
174 #define BUILT_IN_LAST (BUILT_IN_NORMAL + 1)
176 /* Codes that identify the various built in functions
177 so that expand_call can identify them quickly. */
178 #define DEF_BUILTIN(ENUM, N, C, T, LT, B, F, NA, AT, IM, COND) ENUM,
179 enum built_in_function
{
180 #include "builtins.def"
181 /* Complex division routines in libgcc. These are done via builtins
182 because emit_library_call_value can't handle complex values. */
183 BUILT_IN_COMPLEX_MUL_MIN
,
184 BUILT_IN_COMPLEX_MUL_MAX
185 = BUILT_IN_COMPLEX_MUL_MIN
186 + MAX_MODE_COMPLEX_FLOAT
187 - MIN_MODE_COMPLEX_FLOAT
,
189 BUILT_IN_COMPLEX_DIV_MIN
,
190 BUILT_IN_COMPLEX_DIV_MAX
191 = BUILT_IN_COMPLEX_DIV_MIN
192 + MAX_MODE_COMPLEX_FLOAT
193 - MIN_MODE_COMPLEX_FLOAT
,
195 /* Upper bound on non-language-specific builtins. */
199 /* Internal functions. */
201 #define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) IFN_##CODE,
202 #include "internal-fn.def"
206 /* An enum that combines target-independent built-in functions with
207 internal functions, so that they can be treated in a similar way.
208 The numbers for built-in functions are the same as for the
209 built_in_function enum. The numbers for internal functions
210 start at END_BUITLINS. */
212 #define DEF_BUILTIN(ENUM, N, C, T, LT, B, F, NA, AT, IM, COND) \
213 CFN_##ENUM = int (ENUM),
214 #include "builtins.def"
217 #define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) \
218 CFN_##CODE = int (END_BUILTINS) + int (IFN_##CODE),
219 #include "internal-fn.def"
224 /* Tree code classes. Each tree_code has an associated code class
225 represented by a TREE_CODE_CLASS. */
226 enum tree_code_class
{
227 tcc_exceptional
, /* An exceptional code (fits no category). */
228 tcc_constant
, /* A constant. */
229 /* Order of tcc_type and tcc_declaration is important. */
230 tcc_type
, /* A type object code. */
231 tcc_declaration
, /* A declaration (also serving as variable refs). */
232 tcc_reference
, /* A reference to storage. */
233 tcc_comparison
, /* A comparison expression. */
234 tcc_unary
, /* A unary arithmetic expression. */
235 tcc_binary
, /* A binary arithmetic expression. */
236 tcc_statement
, /* A statement expression, which have side effects
237 but usually no interesting value. */
238 tcc_vl_exp
, /* A function call or other expression with a
239 variable-length operand vector. */
240 tcc_expression
/* Any other expression. */
243 /* OMP_CLAUSE codes. Do not reorder, as this is used to index into
244 the tables omp_clause_num_ops and omp_clause_code_name. */
245 enum omp_clause_code
{
246 /* Clause zero is special-cased inside the parser
247 (c_parser_omp_variable_list). */
248 OMP_CLAUSE_ERROR
= 0,
250 /* OpenACC/OpenMP clause: private (variable_list). */
253 /* OpenMP clause: shared (variable_list). */
256 /* OpenACC/OpenMP clause: firstprivate (variable_list). */
257 OMP_CLAUSE_FIRSTPRIVATE
,
259 /* OpenMP clause: lastprivate (variable_list). */
260 OMP_CLAUSE_LASTPRIVATE
,
262 /* OpenACC/OpenMP clause: reduction (operator:variable_list).
263 OMP_CLAUSE_REDUCTION_CODE: The tree_code of the operator.
264 Operand 1: OMP_CLAUSE_REDUCTION_INIT: Stmt-list to initialize the var.
265 Operand 2: OMP_CLAUSE_REDUCTION_MERGE: Stmt-list to merge private var
267 Operand 3: OMP_CLAUSE_REDUCTION_PLACEHOLDER: A dummy VAR_DECL
268 placeholder used in OMP_CLAUSE_REDUCTION_{INIT,MERGE}.
269 Operand 4: OMP_CLAUSE_REDUCTION_DECL_PLACEHOLDER: Another dummy
270 VAR_DECL placeholder, used like the above for C/C++ array
272 OMP_CLAUSE_REDUCTION
,
274 /* OpenMP clause: task_reduction (operator:variable_list). */
275 OMP_CLAUSE_TASK_REDUCTION
,
277 /* OpenMP clause: in_reduction (operator:variable_list). */
278 OMP_CLAUSE_IN_REDUCTION
,
280 /* OpenMP clause: copyin (variable_list). */
283 /* OpenMP clause: copyprivate (variable_list). */
284 OMP_CLAUSE_COPYPRIVATE
,
286 /* OpenMP clause: linear (variable-list[:linear-step]). */
289 /* OpenMP clause: affinity([depend-modifier :] variable-list). */
292 /* OpenMP clause: aligned (variable-list[:alignment]). */
295 /* OpenMP clause: allocate ([allocator:]variable-list). */
298 /* OpenMP clause: depend ({in,out,inout}:variable-list). */
301 /* OpenMP clause: nontemporal (variable-list). */
302 OMP_CLAUSE_NONTEMPORAL
,
304 /* OpenMP clause: uniform (argument-list). */
307 /* OpenMP clause: enter (extended-list).
308 to is a deprecated alias when it appears in declare target. */
311 /* OpenMP clause: link (variable-list). */
314 /* OpenMP clause: detach (event-handle). */
317 /* OpenACC clause: use_device (variable-list).
318 OpenMP clause: use_device_ptr (ptr-list). */
319 OMP_CLAUSE_USE_DEVICE_PTR
,
321 /* OpenMP clause: use_device_addr (variable-list). */
322 OMP_CLAUSE_USE_DEVICE_ADDR
,
324 /* OpenMP clause: is_device_ptr (variable-list). */
325 OMP_CLAUSE_IS_DEVICE_PTR
,
327 /* OpenMP clause: inclusive (variable-list). */
328 OMP_CLAUSE_INCLUSIVE
,
330 /* OpenMP clause: exclusive (variable-list). */
331 OMP_CLAUSE_EXCLUSIVE
,
333 /* OpenMP clause: from (variable-list). */
336 /* OpenMP clause: to (variable-list). */
339 /* OpenACC clauses: {copy, copyin, copyout, create, delete, deviceptr,
340 device, host (self), present, present_or_copy (pcopy), present_or_copyin
341 (pcopyin), present_or_copyout (pcopyout), present_or_create (pcreate)}
344 OpenMP clause: map ({alloc:,to:,from:,tofrom:,}variable-list). */
347 /* OpenMP clause: has_device_addr (variable-list). */
348 OMP_CLAUSE_HAS_DEVICE_ADDR
,
350 /* OpenMP clause: doacross ({source,sink}:vec). */
353 /* Internal structure to hold OpenACC cache directive's variable-list.
354 #pragma acc cache (variable-list). */
357 /* OpenACC clause: gang [(gang-argument-list)].
359 gang-argument-list: [gang-argument-list, ] gang-argument
360 gang-argument: [num:] integer-expression
361 | static: size-expression
362 size-expression: * | integer-expression. */
365 /* OpenACC clause: async [(integer-expression)]. */
368 /* OpenACC clause: wait [(integer-expression-list)]. */
371 /* OpenACC clause: auto. */
374 /* OpenACC clause: seq. */
377 /* Internal clause: temporary for combined loops expansion. */
378 OMP_CLAUSE__LOOPTEMP_
,
380 /* Internal clause: temporary for task reductions. */
381 OMP_CLAUSE__REDUCTEMP_
,
383 /* Internal clause: temporary for lastprivate(conditional:). */
384 OMP_CLAUSE__CONDTEMP_
,
386 /* Internal clause: temporary for inscan reductions. */
387 OMP_CLAUSE__SCANTEMP_
,
389 /* OpenACC/OpenMP clause: if (scalar-expression). */
392 /* OpenACC clause: self. */
395 /* OpenMP clause: num_threads (integer-expression). */
396 OMP_CLAUSE_NUM_THREADS
,
398 /* OpenMP clause: schedule. */
401 /* OpenMP clause: nowait. */
404 /* OpenMP clause: ordered [(constant-integer-expression)]. */
407 /* OpenACC/OpenMP clause: default. */
410 /* OpenACC/OpenMP clause: collapse (constant-integer-expression). */
413 /* OpenMP clause: untied. */
416 /* OpenMP clause: final (scalar-expression). */
419 /* OpenMP clause: mergeable. */
420 OMP_CLAUSE_MERGEABLE
,
422 /* OpenMP clause: device (integer-expression). */
425 /* OpenMP clause: dist_schedule (static[:chunk-size]). */
426 OMP_CLAUSE_DIST_SCHEDULE
,
428 /* OpenMP clause: inbranch. */
431 /* OpenMP clause: notinbranch. */
432 OMP_CLAUSE_NOTINBRANCH
,
434 /* OpenMP clause: num_teams(integer-expression). */
435 OMP_CLAUSE_NUM_TEAMS
,
437 /* OpenMP clause: thread_limit(integer-expression). */
438 OMP_CLAUSE_THREAD_LIMIT
,
440 /* OpenMP clause: proc_bind ({master,close,spread}). */
441 OMP_CLAUSE_PROC_BIND
,
443 /* OpenMP clause: safelen (constant-integer-expression). */
446 /* OpenMP clause: simdlen (constant-integer-expression). */
449 /* OpenMP clause: device_type ({host,nohost,any}). */
450 OMP_CLAUSE_DEVICE_TYPE
,
452 /* OpenMP clause: for. */
455 /* OpenMP clause: parallel. */
458 /* OpenMP clause: sections. */
461 /* OpenMP clause: taskgroup. */
462 OMP_CLAUSE_TASKGROUP
,
464 /* OpenMP clause: priority (integer-expression). */
467 /* OpenMP clause: grainsize (integer-expression). */
468 OMP_CLAUSE_GRAINSIZE
,
470 /* OpenMP clause: num_tasks (integer-expression). */
471 OMP_CLAUSE_NUM_TASKS
,
473 /* OpenMP clause: nogroup. */
476 /* OpenMP clause: threads. */
479 /* OpenMP clause: simd. */
482 /* OpenMP clause: hint (integer-expression). */
485 /* OpenMP clause: defaultmap (tofrom: scalar). */
486 OMP_CLAUSE_DEFAULTMAP
,
488 /* OpenMP clause: order (concurrent). */
491 /* OpenMP clause: bind (binding). */
494 /* OpenMP clause: filter (integer-expression). */
497 /* OpenMP clause: indirect [(constant-integer-expression)]. */
500 /* Internally used only clause, holding SIMD uid. */
501 OMP_CLAUSE__SIMDUID_
,
503 /* Internally used only clause, flag whether this is SIMT simd
507 /* OpenACC clause: independent. */
508 OMP_CLAUSE_INDEPENDENT
,
510 /* OpenACC clause: worker [( [num:] integer-expression)]. */
513 /* OpenACC clause: vector [( [length:] integer-expression)]. */
516 /* OpenACC clause: num_gangs (integer-expression). */
517 OMP_CLAUSE_NUM_GANGS
,
519 /* OpenACC clause: num_workers (integer-expression). */
520 OMP_CLAUSE_NUM_WORKERS
,
522 /* OpenACC clause: vector_length (integer-expression). */
523 OMP_CLAUSE_VECTOR_LENGTH
,
525 /* OpenACC clause: tile ( size-expr-list ). */
528 /* OpenACC clause: if_present. */
529 OMP_CLAUSE_IF_PRESENT
,
531 /* OpenACC clause: finalize. */
534 /* OpenACC clause: nohost. */
539 #define DEFTREESTRUCT(ENUM, NAME) ENUM,
540 enum tree_node_structure_enum
{
541 #include "treestruct.def"
546 enum omp_clause_schedule_kind
{
547 OMP_CLAUSE_SCHEDULE_STATIC
,
548 OMP_CLAUSE_SCHEDULE_DYNAMIC
,
549 OMP_CLAUSE_SCHEDULE_GUIDED
,
550 OMP_CLAUSE_SCHEDULE_AUTO
,
551 OMP_CLAUSE_SCHEDULE_RUNTIME
,
552 OMP_CLAUSE_SCHEDULE_MASK
= (1 << 3) - 1,
553 OMP_CLAUSE_SCHEDULE_MONOTONIC
= (1 << 3),
554 OMP_CLAUSE_SCHEDULE_NONMONOTONIC
= (1 << 4),
555 OMP_CLAUSE_SCHEDULE_LAST
= 2 * OMP_CLAUSE_SCHEDULE_NONMONOTONIC
- 1
558 enum omp_clause_default_kind
{
559 OMP_CLAUSE_DEFAULT_UNSPECIFIED
,
560 OMP_CLAUSE_DEFAULT_SHARED
,
561 OMP_CLAUSE_DEFAULT_NONE
,
562 OMP_CLAUSE_DEFAULT_PRIVATE
,
563 OMP_CLAUSE_DEFAULT_FIRSTPRIVATE
,
564 OMP_CLAUSE_DEFAULT_PRESENT
,
565 OMP_CLAUSE_DEFAULT_LAST
568 enum omp_clause_defaultmap_kind
{
569 OMP_CLAUSE_DEFAULTMAP_CATEGORY_UNSPECIFIED
,
570 OMP_CLAUSE_DEFAULTMAP_CATEGORY_ALL
,
571 OMP_CLAUSE_DEFAULTMAP_CATEGORY_SCALAR
,
572 OMP_CLAUSE_DEFAULTMAP_CATEGORY_AGGREGATE
,
573 OMP_CLAUSE_DEFAULTMAP_CATEGORY_ALLOCATABLE
,
574 OMP_CLAUSE_DEFAULTMAP_CATEGORY_POINTER
,
575 OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
= 7,
576 OMP_CLAUSE_DEFAULTMAP_ALLOC
= 1 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1),
577 OMP_CLAUSE_DEFAULTMAP_TO
= 2 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1),
578 OMP_CLAUSE_DEFAULTMAP_FROM
= 3 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1),
579 OMP_CLAUSE_DEFAULTMAP_TOFROM
= 4 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1),
580 OMP_CLAUSE_DEFAULTMAP_FIRSTPRIVATE
581 = 5 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1),
582 OMP_CLAUSE_DEFAULTMAP_NONE
= 6 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1),
583 OMP_CLAUSE_DEFAULTMAP_DEFAULT
584 = 7 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1),
585 OMP_CLAUSE_DEFAULTMAP_PRESENT
= 8 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1),
586 OMP_CLAUSE_DEFAULTMAP_MASK
= 15 * (OMP_CLAUSE_DEFAULTMAP_CATEGORY_MASK
+ 1)
589 enum omp_clause_bind_kind
{
590 OMP_CLAUSE_BIND_TEAMS
,
591 OMP_CLAUSE_BIND_PARALLEL
,
592 OMP_CLAUSE_BIND_THREAD
595 /* memory-order-clause on OpenMP atomic/flush constructs or
596 argument of atomic_default_mem_order clause. */
597 enum omp_memory_order
{
598 OMP_MEMORY_ORDER_UNSPECIFIED
,
599 OMP_MEMORY_ORDER_RELAXED
,
600 OMP_MEMORY_ORDER_ACQUIRE
,
601 OMP_MEMORY_ORDER_RELEASE
,
602 OMP_MEMORY_ORDER_ACQ_REL
,
603 OMP_MEMORY_ORDER_SEQ_CST
,
604 OMP_MEMORY_ORDER_MASK
= 7,
605 OMP_FAIL_MEMORY_ORDER_UNSPECIFIED
= OMP_MEMORY_ORDER_UNSPECIFIED
* 8,
606 OMP_FAIL_MEMORY_ORDER_RELAXED
= OMP_MEMORY_ORDER_RELAXED
* 8,
607 OMP_FAIL_MEMORY_ORDER_ACQUIRE
= OMP_MEMORY_ORDER_ACQUIRE
* 8,
608 OMP_FAIL_MEMORY_ORDER_RELEASE
= OMP_MEMORY_ORDER_RELEASE
* 8,
609 OMP_FAIL_MEMORY_ORDER_ACQ_REL
= OMP_MEMORY_ORDER_ACQ_REL
* 8,
610 OMP_FAIL_MEMORY_ORDER_SEQ_CST
= OMP_MEMORY_ORDER_SEQ_CST
* 8,
611 OMP_FAIL_MEMORY_ORDER_MASK
= OMP_MEMORY_ORDER_MASK
* 8
613 #define OMP_FAIL_MEMORY_ORDER_SHIFT 3
615 /* There is a TYPE_QUAL value for each type qualifier. They can be
616 combined by bitwise-or to form the complete set of qualifiers for a
619 TYPE_UNQUALIFIED
= 0x0,
620 TYPE_QUAL_CONST
= 0x1,
621 TYPE_QUAL_VOLATILE
= 0x2,
622 TYPE_QUAL_RESTRICT
= 0x4,
623 TYPE_QUAL_ATOMIC
= 0x8
626 /* Standard named or nameless data types of the C compiler. */
657 TI_INTEGER_MINUS_ONE
,
678 /* __bf16 type if supported (used in C++ as std::bfloat16_t). */
681 /* The _FloatN and _FloatNx types must be consecutive, and in the
682 same sequence as the corresponding complex types, which must also
683 be consecutive; _FloatN must come before _FloatNx; the order must
684 also be the same as in the floatn_nx_types array and the RID_*
685 values in c-common.h. This is so that iterations over these
686 types work as intended. */
688 TI_FLOATN_TYPE_FIRST
= TI_FLOAT16_TYPE
,
689 TI_FLOATN_NX_TYPE_FIRST
= TI_FLOAT16_TYPE
,
693 TI_FLOATN_TYPE_LAST
= TI_FLOAT128_TYPE
,
694 #define NUM_FLOATN_TYPES (TI_FLOATN_TYPE_LAST - TI_FLOATN_TYPE_FIRST + 1)
696 TI_FLOATNX_TYPE_FIRST
= TI_FLOAT32X_TYPE
,
699 TI_FLOATNX_TYPE_LAST
= TI_FLOAT128X_TYPE
,
700 TI_FLOATN_NX_TYPE_LAST
= TI_FLOAT128X_TYPE
,
701 #define NUM_FLOATNX_TYPES (TI_FLOATNX_TYPE_LAST - TI_FLOATNX_TYPE_FIRST + 1)
702 #define NUM_FLOATN_NX_TYPES (TI_FLOATN_NX_TYPE_LAST \
703 - TI_FLOATN_NX_TYPE_FIRST \
706 /* Type used by certain backends for __float128, which in C++ should be
707 distinct type from _Float128 for backwards compatibility reasons. */
710 /* Put the complex types after their component types, so that in (sequential)
711 tree streaming we can assert that their component types have already been
712 handled (see tree-streamer.cc:record_common_node). */
713 TI_COMPLEX_INTEGER_TYPE
,
714 TI_COMPLEX_FLOAT_TYPE
,
715 TI_COMPLEX_DOUBLE_TYPE
,
716 TI_COMPLEX_LONG_DOUBLE_TYPE
,
718 TI_COMPLEX_FLOAT16_TYPE
,
719 TI_COMPLEX_FLOATN_NX_TYPE_FIRST
= TI_COMPLEX_FLOAT16_TYPE
,
720 TI_COMPLEX_FLOAT32_TYPE
,
721 TI_COMPLEX_FLOAT64_TYPE
,
722 TI_COMPLEX_FLOAT128_TYPE
,
723 TI_COMPLEX_FLOAT32X_TYPE
,
724 TI_COMPLEX_FLOAT64X_TYPE
,
725 TI_COMPLEX_FLOAT128X_TYPE
,
729 TI_LONG_DOUBLE_PTR_TYPE
,
739 TI_VA_LIST_GPR_COUNTER_FIELD
,
740 TI_VA_LIST_FPR_COUNTER_FIELD
,
743 TI_CONST_TM_PTR_TYPE
,
745 TI_CONST_FENV_T_PTR_TYPE
,
746 TI_FEXCEPT_T_PTR_TYPE
,
747 TI_CONST_FEXCEPT_T_PTR_TYPE
,
748 TI_POINTER_SIZED_TYPE
,
765 TI_SAT_ULLFRACT_TYPE
,
781 TI_SAT_ULLACCUM_TYPE
,
828 /* Nodes below here change during compilation, and should therefore
829 not be in the C++ module's global tree table. */
831 TI_OPTIMIZATION_DEFAULT
,
832 TI_OPTIMIZATION_CURRENT
,
833 TI_TARGET_OPTION_DEFAULT
,
834 TI_TARGET_OPTION_CURRENT
,
835 TI_CURRENT_TARGET_PRAGMA
,
836 TI_CURRENT_OPTIMIZE_PRAGMA
,
844 /* An enumeration of the standard C integer types. These must be
845 ordered so that shorter types appear before longer ones, and so
846 that signed types appear before unsigned ones, for the correct
847 functioning of interpret_integer() in c-lex.cc. */
848 enum integer_type_kind
{
859 itk_unsigned_long_long
,
873 /* A pointer-to-function member type looks like:
880 If __pfn is NULL, it is a NULL pointer-to-member-function.
882 (Because the vtable is always the first thing in the object, we
883 don't need its offset.) If the function is virtual, then PFN is
884 one plus twice the index into the vtable; otherwise, it is just a
885 pointer to the function.
887 Unfortunately, using the lowest bit of PFN doesn't work in
888 architectures that don't impose alignment requirements on function
889 addresses, or that use the lowest bit to tell one ISA from another,
890 for example. For such architectures, we use the lowest bit of
891 DELTA instead of the lowest bit of the PFN, and DELTA will be
893 enum ptrmemfunc_vbit_where_t
{
894 ptrmemfunc_vbit_in_pfn
,
895 ptrmemfunc_vbit_in_delta
898 /* Flags that may be passed in the third argument of decl_attributes, and
899 to handler functions for attributes. */
900 enum attribute_flags
{
901 /* The type passed in is the type of a DECL, and any attributes that
902 should be passed in again to be applied to the DECL rather than the
903 type should be returned. */
904 ATTR_FLAG_DECL_NEXT
= 1,
905 /* The type passed in is a function return type, and any attributes that
906 should be passed in again to be applied to the function type rather
907 than the return type should be returned. */
908 ATTR_FLAG_FUNCTION_NEXT
= 2,
909 /* The type passed in is an array element type, and any attributes that
910 should be passed in again to be applied to the array type rather
911 than the element type should be returned. */
912 ATTR_FLAG_ARRAY_NEXT
= 4,
913 /* The type passed in is a structure, union or enumeration type being
914 created, and should be modified in place. */
915 ATTR_FLAG_TYPE_IN_PLACE
= 8,
916 /* The attributes are being applied by default to a library function whose
917 name indicates known behavior, and should be silently ignored if they
918 are not in fact compatible with the function type. */
919 ATTR_FLAG_BUILT_IN
= 16,
920 /* A given attribute has been parsed as a C++-11 attribute. */
921 ATTR_FLAG_CXX11
= 32,
922 /* The attribute handler is being invoked with an internal argument
923 that may not otherwise be valid when specified in source code. */
924 ATTR_FLAG_INTERNAL
= 64
927 /* Types used to represent sizes. */
928 enum size_type_kind
{
929 stk_sizetype
, /* Normal representation of sizes in bytes. */
930 stk_ssizetype
, /* Signed representation of sizes in bytes. */
931 stk_bitsizetype
, /* Normal representation of sizes in bits. */
932 stk_sbitsizetype
, /* Signed representation of sizes in bits. */
936 /* Flags controlling operand_equal_p() behavior. */
937 enum operand_equal_flag
{
940 OEP_MATCH_SIDE_EFFECTS
= 4,
942 /* Internal within operand_equal_p: */
943 OEP_NO_HASH_CHECK
= 16,
944 /* Internal within inchash::add_expr: */
946 /* Makes operand_equal_p handle more expressions: */
947 OEP_LEXICOGRAPHIC
= 64,
949 /* For OEP_ADDRESS_OF of COMPONENT_REFs, only consider same fields as
950 equivalent rather than also different fields with the same offset. */
951 OEP_ADDRESS_OF_SAME_FIELD
= 256,
952 /* In conjunction with OEP_LEXICOGRAPHIC considers names of declarations
953 of the same kind. Used to compare VLA bounds involving parameters
954 across redeclarations of the same function. */
958 /* Enum and arrays used for tree allocation stats.
959 Keep in sync with tree.cc:tree_node_kind_names. */
960 enum tree_node_kind
{
980 enum annot_expr_kind
{
981 annot_expr_ivdep_kind
,
982 annot_expr_unroll_kind
,
983 annot_expr_no_vector_kind
,
984 annot_expr_vector_kind
,
985 annot_expr_parallel_kind
,
989 /* The kind of a TREE_CLOBBER_P CONSTRUCTOR node. Other than _UNDEF, these are
990 in roughly sequential order. */
992 /* Unspecified, this clobber acts as a store of an undefined value. */
994 /* Beginning of storage duration, e.g. malloc. */
995 CLOBBER_STORAGE_BEGIN
,
996 /* Beginning of object data, e.g. start of C++ constructor. This differs
997 from C++ 'lifetime', which starts when initialization is complete; a
998 clobber there would discard the initialization. */
999 CLOBBER_OBJECT_BEGIN
,
1000 /* End of object data, e.g. end of C++ destructor. */
1002 /* End of storage duration, e.g. free. */
1003 CLOBBER_STORAGE_END
,
1007 /*---------------------------------------------------------------------------
1009 ---------------------------------------------------------------------------*/
1010 /* When processing aliases at the symbol table level, we need the
1011 declaration of target. For this reason we need to queue aliases and
1012 process them after all declarations has been produced. */
1013 struct GTY(()) alias_pair
{
1018 /* An initialization priority. */
1019 typedef unsigned short priority_type
;
1021 /* The type of a callback function for walking over tree structure. */
1022 typedef tree (*walk_tree_fn
) (tree
*, int *, void *);
1024 /* The type of a callback function that represents a custom walk_tree. */
1025 typedef tree (*walk_tree_lh
) (tree
*, int *, tree (*) (tree
*, int *, void *),
1026 void *, hash_set
<tree
> *);
1029 /*---------------------------------------------------------------------------
1030 Main data structures
1031 ---------------------------------------------------------------------------*/
1032 /* A tree node can represent a data type, a variable, an expression
1033 or a statement. Each node has a TREE_CODE which says what kind of
1034 thing it represents. Some common codes are:
1035 INTEGER_TYPE -- represents a type of integers.
1036 ARRAY_TYPE -- represents a type of pointer.
1037 VAR_DECL -- represents a declared variable.
1038 INTEGER_CST -- represents a constant integer value.
1039 PLUS_EXPR -- represents a sum (an expression).
1041 As for the contents of a tree node: there are some fields
1042 that all nodes share. Each TREE_CODE has various special-purpose
1043 fields as well. The fields of a node are never accessed directly,
1044 always through accessor macros. */
1046 /* Every kind of tree node starts with this structure,
1047 so all nodes have these fields.
1049 See the accessor macros, defined below, for documentation of the
1050 fields, and the table below which connects the fields and the
1053 struct GTY(()) tree_base
{
1054 ENUM_BITFIELD(tree_code
) code
: 16;
1056 unsigned side_effects_flag
: 1;
1057 unsigned constant_flag
: 1;
1058 unsigned addressable_flag
: 1;
1059 unsigned volatile_flag
: 1;
1060 unsigned readonly_flag
: 1;
1061 unsigned asm_written_flag
: 1;
1062 unsigned nowarning_flag
: 1;
1063 unsigned visited
: 1;
1065 unsigned used_flag
: 1;
1066 unsigned nothrow_flag
: 1;
1067 unsigned static_flag
: 1;
1068 unsigned public_flag
: 1;
1069 unsigned private_flag
: 1;
1070 unsigned protected_flag
: 1;
1071 unsigned deprecated_flag
: 1;
1072 unsigned default_def_flag
: 1;
1075 /* The bits in the following structure should only be used with
1076 accessor macros that constrain inputs with tree checking. */
1078 unsigned lang_flag_0
: 1;
1079 unsigned lang_flag_1
: 1;
1080 unsigned lang_flag_2
: 1;
1081 unsigned lang_flag_3
: 1;
1082 unsigned lang_flag_4
: 1;
1083 unsigned lang_flag_5
: 1;
1084 unsigned lang_flag_6
: 1;
1085 unsigned saturating_flag
: 1;
1087 unsigned unsigned_flag
: 1;
1088 unsigned packed_flag
: 1;
1089 unsigned user_align
: 1;
1090 unsigned nameless_flag
: 1;
1091 unsigned atomic_flag
: 1;
1092 unsigned unavailable_flag
: 1;
1093 unsigned spare0
: 2;
1095 unsigned spare1
: 8;
1097 /* For _TYPE nodes, this is TYPE_ADDR_SPACE; the reason it is
1098 present in tree_base instead of tree_type is to save space. The size
1099 of the field must be large enough to hold addr_space_t values.
1100 For CONSTRUCTOR nodes this holds the clobber_kind enum.
1101 The C++ front-end uses this in IDENTIFIER_NODE and NAMESPACE_DECL. */
1102 unsigned address_space
: 8;
1105 /* The following fields are present in tree_base to save space. The
1106 nodes using them do not require any of the flags above and so can
1107 make better use of the 4-byte sized word. */
1109 /* The number of HOST_WIDE_INTs in an INTEGER_CST. */
1111 /* The number of HOST_WIDE_INTs if the INTEGER_CST is accessed in
1112 its native precision. */
1113 unsigned short unextended
;
1115 /* The number of HOST_WIDE_INTs if the INTEGER_CST is extended to
1116 wider precisions based on its TYPE_SIGN. */
1117 unsigned short extended
;
1120 /* VEC length. This field is only used with TREE_VEC. */
1123 /* This field is only used with VECTOR_CST. */
1125 /* The value of VECTOR_CST_LOG2_NPATTERNS. */
1126 unsigned int log2_npatterns
: 8;
1128 /* The value of VECTOR_CST_NELTS_PER_PATTERN. */
1129 unsigned int nelts_per_pattern
: 8;
1131 /* For future expansion. */
1132 unsigned int unused
: 16;
1135 /* SSA version number. This field is only used with SSA_NAME. */
1136 unsigned int version
;
1138 /* CHREC_VARIABLE. This field is only used with POLYNOMIAL_CHREC. */
1139 unsigned int chrec_var
;
1141 /* Internal function code. */
1142 enum internal_fn ifn
;
1144 /* OMP_ATOMIC* memory order. */
1145 enum omp_memory_order omp_atomic_memory_order
;
1147 /* The following two fields are used for MEM_REF and TARGET_MEM_REF
1148 expression trees and specify known data non-dependences. For
1149 two memory references in a function they are known to not
1150 alias if dependence_info.clique are equal and dependence_info.base
1151 are distinct. Clique number zero means there is no information,
1152 clique number one is populated from function global information
1153 and thus needs no remapping on transforms like loop unrolling. */
1155 unsigned short clique
;
1156 unsigned short base
;
1158 } GTY((skip(""))) u
;
1161 /* The following table lists the uses of each of the above flags and
1162 for which types of nodes they are defined.
1167 VAR_DECL, PARM_DECL, RESULT_DECL, FUNCTION_DECL, LABEL_DECL
1170 CONSTRUCTOR, IDENTIFIER_NODE
1173 CALL_EXPR_TAILCALL in
1179 PREDICT_EXPR_OUTCOME in
1182 OMP_CLAUSE_MAP_DECL_MAKE_ADDRESSABLE in
1188 VAR_DECL, FUNCTION_DECL
1191 TREE_NO_TRAMPOLINE in
1197 TREE_SYMBOL_REFERENCED in
1201 TARGET_EXPR, WITH_CLEANUP_EXPR
1203 TRY_CATCH_IS_CLEANUP in
1209 TYPE_REF_CAN_ALIAS_ALL in
1210 POINTER_TYPE, REFERENCE_TYPE
1218 TRANSACTION_EXPR_OUTER in
1227 INTEGER_CST, REAL_CST, COMPLEX_CST, VECTOR_CST
1230 VAR_DECL, FUNCTION_DECL
1233 CONSTRUCTOR_NO_CLEARING in
1239 CALL_EXPR_VA_ARG_PACK in
1242 TYPE_CACHED_VALUES_P in
1245 SAVE_EXPR_RESOLVED_P in
1248 OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE in
1249 OMP_CLAUSE_LASTPRIVATE
1251 OMP_CLAUSE_PRIVATE_DEBUG in
1254 OMP_CLAUSE_LINEAR_NO_COPYIN in
1257 OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION in
1260 OMP_CLAUSE_REDUCTION_OMP_ORIG_REF in
1261 OMP_CLAUSE_{,TASK_,IN_}REDUCTION
1263 OMP_CLAUSE_USE_DEVICE_PTR_IF_PRESENT in
1264 OMP_CLAUSE_USE_DEVICE_PTR
1266 TRANSACTION_EXPR_RELAXED in
1269 FALLTHROUGH_LABEL_P in
1272 SSA_NAME_IS_VIRTUAL_OPERAND in
1275 EXPR_LOCATION_WRAPPER_P in
1276 NON_LVALUE_EXPR, VIEW_CONVERT_EXPR
1283 CALL_EXPR_RETURN_SLOT_OPT in
1289 OMP_PARALLEL_COMBINED in
1292 OMP_CLAUSE_PRIVATE_OUTER_REF in
1295 OMP_CLAUSE_LINEAR_NO_COPYOUT in
1298 TYPE_REF_IS_RVALUE in
1310 CALL_FROM_THUNK_P and
1311 CALL_ALLOCA_FOR_VAR_P and
1312 CALL_FROM_NEW_OR_DELETE_P in
1315 OMP_CLAUSE_LINEAR_VARIABLE_STRIDE in
1323 TREE_SIDE_EFFECTS in
1333 TREE_THIS_VOLATILE in
1349 OMP_CLAUSE_MAP_READONLY in
1352 OMP_CLAUSE__CACHE__READONLY in
1362 TYPE_SIZES_GIMPLIFIED in
1376 VAR_DECL, FUNCTION_DECL, TYPE_DECL
1377 RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE
1380 SSA_NAME_OCCURS_IN_ABNORMAL_PHI in
1397 INDIRECT_REF, MEM_REF, TARGET_MEM_REF, ARRAY_REF, ARRAY_RANGE_REF
1399 SSA_NAME_IN_FREE_LIST in
1414 IDENTIFIER_TRANSPARENT_ALIAS in
1417 SSA_NAME_POINTS_TO_READONLY_MEMORY in
1429 all trees (used liberally by many passes)
1433 TYPE_REVERSE_STORAGE_ORDER in
1434 RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE, ARRAY_TYPE
1439 VAR_DECL_IS_VIRTUAL_OPERAND in
1454 RECORD_TYPE, UNION_TYPE and QUAL_UNION_TYPE
1456 TYPE_VECTOR_OPAQUE in
1459 SSA_NAME_IS_DEFAULT_DEF in
1462 DECL_NONLOCAL_FRAME in
1465 REF_REVERSE_STORAGE_ORDER in
1466 BIT_FIELD_REF, MEM_REF
1468 FUNC_ADDR_BY_DESCRIPTOR in
1471 CALL_EXPR_BY_DESCRIPTOR in
1476 struct GTY(()) tree_typed
{
1477 struct tree_base base
;
1481 struct GTY(()) tree_common
{
1482 struct tree_typed typed
;
1486 struct GTY(()) tree_int_cst
{
1487 struct tree_typed typed
;
1488 HOST_WIDE_INT val
[1];
1492 struct GTY(()) tree_real_cst
{
1493 struct tree_typed typed
;
1494 struct real_value value
;
1497 struct GTY(()) tree_fixed_cst
{
1498 struct tree_typed typed
;
1499 struct fixed_value
* fixed_cst_ptr
;
1502 struct GTY(()) tree_string
{
1503 struct tree_typed typed
;
1508 struct GTY(()) tree_complex
{
1509 struct tree_typed typed
;
1514 struct GTY(()) tree_vector
{
1515 struct tree_typed typed
;
1516 tree
GTY ((length ("vector_cst_encoded_nelts ((tree) &%h)"))) elts
[1];
1519 struct GTY(()) tree_poly_int_cst
{
1520 struct tree_typed typed
;
1521 tree coeffs
[NUM_POLY_INT_COEFFS
];
1524 struct GTY(()) tree_identifier
{
1525 struct tree_common common
;
1526 struct ht_identifier id
;
1529 struct GTY(()) tree_list
{
1530 struct tree_common common
;
1535 struct GTY(()) tree_vec
{
1536 struct tree_common common
;
1537 tree
GTY ((length ("TREE_VEC_LENGTH ((tree)&%h)"))) a
[1];
1540 /* A single element of a CONSTRUCTOR. VALUE holds the actual value of the
1541 element. INDEX can optionally design the position of VALUE: in arrays,
1542 it is the index where VALUE has to be placed; in structures, it is the
1543 FIELD_DECL of the member. */
1544 struct GTY(()) constructor_elt
{
1549 struct GTY(()) tree_constructor
{
1550 struct tree_typed typed
;
1551 vec
<constructor_elt
, va_gc
> *elts
;
1554 enum omp_clause_depend_kind
1556 OMP_CLAUSE_DEPEND_IN
,
1557 OMP_CLAUSE_DEPEND_OUT
,
1558 OMP_CLAUSE_DEPEND_INOUT
,
1559 OMP_CLAUSE_DEPEND_MUTEXINOUTSET
,
1560 OMP_CLAUSE_DEPEND_INOUTSET
,
1561 OMP_CLAUSE_DEPEND_DEPOBJ
,
1562 OMP_CLAUSE_DEPEND_INVALID
,
1563 OMP_CLAUSE_DEPEND_LAST
1566 enum omp_clause_doacross_kind
1568 OMP_CLAUSE_DOACROSS_SOURCE
,
1569 OMP_CLAUSE_DOACROSS_SINK
,
1570 OMP_CLAUSE_DOACROSS_LAST
1573 enum omp_clause_proc_bind_kind
1575 /* Numbers should match omp_proc_bind_t enum in omp.h. */
1576 OMP_CLAUSE_PROC_BIND_FALSE
= 0,
1577 OMP_CLAUSE_PROC_BIND_TRUE
= 1,
1578 OMP_CLAUSE_PROC_BIND_PRIMARY
= 2,
1579 OMP_CLAUSE_PROC_BIND_MASTER
= 2,
1580 OMP_CLAUSE_PROC_BIND_CLOSE
= 3,
1581 OMP_CLAUSE_PROC_BIND_SPREAD
= 4,
1582 OMP_CLAUSE_PROC_BIND_LAST
1585 enum omp_clause_device_type_kind
1587 OMP_CLAUSE_DEVICE_TYPE_HOST
= 1,
1588 OMP_CLAUSE_DEVICE_TYPE_NOHOST
= 2,
1589 OMP_CLAUSE_DEVICE_TYPE_ANY
= 3
1592 enum omp_clause_linear_kind
1594 OMP_CLAUSE_LINEAR_DEFAULT
,
1595 OMP_CLAUSE_LINEAR_REF
,
1596 OMP_CLAUSE_LINEAR_VAL
,
1597 OMP_CLAUSE_LINEAR_UVAL
1600 struct GTY(()) tree_exp
{
1601 struct tree_typed typed
;
1603 tree
GTY ((length ("TREE_OPERAND_LENGTH ((tree)&%h)"))) operands
[1];
1606 /* Immediate use linking structure. This structure is used for maintaining
1607 a doubly linked list of uses of an SSA_NAME. */
1608 struct GTY(()) ssa_use_operand_t
{
1609 struct ssa_use_operand_t
* GTY((skip(""))) prev
;
1610 struct ssa_use_operand_t
* GTY((skip(""))) next
;
1611 /* Immediate uses for a given SSA name are maintained as a cyclic
1612 list. To recognize the root of this list, the location field
1613 needs to point to the original SSA name. Since statements and
1614 SSA names are of different data types, we need this union. See
1615 the explanation in struct imm_use_iterator. */
1616 union { gimple
*stmt
; tree ssa_name
; } GTY((skip(""))) loc
;
1617 tree
*GTY((skip(""))) use
;
1620 struct GTY(()) tree_ssa_name
{
1621 struct tree_typed typed
;
1623 /* _DECL wrapped by this SSA name. */
1626 /* Statement that defines this SSA name. */
1629 /* Value range information. */
1630 union ssa_name_info_type
{
1631 /* Range and aliasing info for pointers. */
1632 struct GTY ((tag ("0"))) ptr_info_def
*ptr_info
;
1633 /* Range info for everything else. */
1634 struct GTY ((tag ("1"))) vrange_storage
* range_info
;
1635 } GTY ((desc ("%1.typed.type ?" \
1636 "!POINTER_TYPE_P (TREE_TYPE ((tree)&%1)) : 2"))) info
;
1637 /* Immediate uses list for this SSA_NAME. */
1638 struct ssa_use_operand_t imm_uses
;
1641 struct GTY(()) phi_arg_d
{
1642 /* imm_use MUST be the first element in struct because we do some
1643 pointer arithmetic with it. See phi_arg_index_from_use. */
1644 struct ssa_use_operand_t imm_use
;
1649 struct GTY(()) tree_omp_clause
{
1650 struct tree_common common
;
1652 enum omp_clause_code code
;
1653 union omp_clause_subcode
{
1654 enum omp_clause_default_kind default_kind
;
1655 enum omp_clause_schedule_kind schedule_kind
;
1656 enum omp_clause_depend_kind depend_kind
;
1657 enum omp_clause_doacross_kind doacross_kind
;
1658 /* See include/gomp-constants.h for enum gomp_map_kind's values. */
1659 unsigned int map_kind
;
1660 enum omp_clause_proc_bind_kind proc_bind_kind
;
1661 enum tree_code reduction_code
;
1662 enum omp_clause_linear_kind linear_kind
;
1663 enum tree_code if_modifier
;
1664 enum omp_clause_defaultmap_kind defaultmap_kind
;
1665 enum omp_clause_bind_kind bind_kind
;
1666 enum omp_clause_device_type_kind device_type_kind
;
1667 } GTY ((skip
)) subcode
;
1669 /* The gimplification of OMP_CLAUSE_REDUCTION_{INIT,MERGE} for omp-low's
1671 gimple_seq gimple_reduction_init
;
1672 gimple_seq gimple_reduction_merge
;
1674 tree
GTY ((length ("omp_clause_num_ops[OMP_CLAUSE_CODE ((tree)&%h)]")))
1678 struct GTY(()) tree_block
{
1679 struct tree_base base
;
1685 location_t end_locus
;
1688 vec
<tree
, va_gc
> *nonlocalized_vars
;
1692 tree abstract_origin
;
1693 tree fragment_origin
;
1694 tree fragment_chain
;
1696 /* Pointer to the DWARF lexical block. */
1697 struct die_struct
*die
;
1700 struct GTY(()) tree_type_common
{
1701 struct tree_common common
;
1707 ENUM_BITFIELD(machine_mode
) mode
: MACHINE_MODE_BITSIZE
;
1709 unsigned int precision
: 16;
1710 unsigned lang_flag_0
: 1;
1711 unsigned lang_flag_1
: 1;
1712 unsigned lang_flag_2
: 1;
1713 unsigned lang_flag_3
: 1;
1714 unsigned lang_flag_4
: 1;
1715 unsigned lang_flag_5
: 1;
1716 unsigned lang_flag_6
: 1;
1717 unsigned lang_flag_7
: 1;
1719 /* TYPE_ALIGN in log2; this has to be large enough to hold values
1720 of the maximum of BIGGEST_ALIGNMENT and MAX_OFILE_ALIGNMENT,
1721 the latter being usually the larger. For ELF it is 8<<28,
1722 so we need to store the value 32 (not 31, as we need the zero
1723 as well), hence six bits. */
1725 /* TYPE_STRING_FLAG for INTEGER_TYPE and ARRAY_TYPE.
1726 TYPE_CXX_ODR_P for RECORD_TYPE and UNION_TYPE. */
1727 unsigned string_flag
: 1;
1728 unsigned no_force_blk_flag
: 1;
1730 unsigned warn_if_not_align
: 6;
1731 unsigned needs_constructing_flag
: 1;
1732 unsigned transparent_aggr_flag
: 1;
1734 unsigned contains_placeholder_bits
: 2;
1735 unsigned restrict_flag
: 1;
1736 unsigned typeless_storage
: 1;
1737 unsigned empty_flag
: 1;
1738 unsigned indivisible_p
: 1;
1739 /* TYPE_NO_NAMED_ARGS_STDARG_P for a stdarg function.
1740 Or TYPE_INCLUDES_FLEXARRAY for RECORD_TYPE and UNION_TYPE. */
1741 unsigned no_named_args_stdarg_p
: 1;
1744 alias_set_type alias_set
;
1747 union tree_type_symtab
{
1748 int GTY ((tag ("TYPE_SYMTAB_IS_ADDRESS"))) address
;
1749 struct die_struct
* GTY ((tag ("TYPE_SYMTAB_IS_DIE"))) die
;
1750 } GTY ((desc ("debug_hooks->tree_type_symtab_field"))) symtab
;
1758 struct GTY(()) tree_type_with_lang_specific
{
1759 struct tree_type_common common
;
1760 /* Points to a structure whose details depend on the language in use. */
1761 struct lang_type
*lang_specific
;
1764 struct GTY(()) tree_type_non_common
{
1765 struct tree_type_with_lang_specific with_lang_specific
;
1772 struct GTY (()) tree_binfo
{
1773 struct tree_common common
;
1779 vec
<tree
, va_gc
> *base_accesses
;
1785 vec
<tree
, va_gc
> base_binfos
;
1788 struct GTY(()) tree_decl_minimal
{
1789 struct tree_common common
;
1796 struct GTY(()) tree_decl_common
{
1797 struct tree_decl_minimal common
;
1800 ENUM_BITFIELD(machine_mode
) mode
: MACHINE_MODE_BITSIZE
;
1802 unsigned nonlocal_flag
: 1;
1803 unsigned virtual_flag
: 1;
1804 unsigned ignored_flag
: 1;
1805 unsigned abstract_flag
: 1;
1806 unsigned artificial_flag
: 1;
1807 unsigned preserve_flag
: 1;
1808 unsigned debug_expr_is_from
: 1;
1810 unsigned lang_flag_0
: 1;
1811 unsigned lang_flag_1
: 1;
1812 unsigned lang_flag_2
: 1;
1813 unsigned lang_flag_3
: 1;
1814 unsigned lang_flag_4
: 1;
1815 unsigned lang_flag_5
: 1;
1816 unsigned lang_flag_6
: 1;
1817 unsigned lang_flag_7
: 1;
1818 unsigned lang_flag_8
: 1;
1820 /* In VAR_DECL and PARM_DECL, this is DECL_REGISTER
1821 In TRANSLATION_UNIT_DECL, this is TRANSLATION_UNIT_WARN_EMPTY_P.
1822 In FIELD_DECL, this is DECL_FIELD_ABI_IGNORED. */
1823 unsigned decl_flag_0
: 1;
1824 /* In FIELD_DECL, this is DECL_BIT_FIELD
1825 In VAR_DECL and FUNCTION_DECL, this is DECL_EXTERNAL.
1826 In TYPE_DECL, this is TYPE_DECL_SUPPRESS_DEBUG. */
1827 unsigned decl_flag_1
: 1;
1828 /* In FIELD_DECL, this is DECL_NONADDRESSABLE_P
1829 In VAR_DECL, PARM_DECL and RESULT_DECL, this is
1830 DECL_HAS_VALUE_EXPR_P. */
1831 unsigned decl_flag_2
: 1;
1832 /* In FIELD_DECL, this is DECL_PADDING_P.
1833 In VAR_DECL, this is DECL_MERGEABLE. */
1834 unsigned decl_flag_3
: 1;
1835 /* Logically, these two would go in a theoretical base shared by var and
1837 unsigned not_gimple_reg_flag
: 1;
1838 /* In VAR_DECL, PARM_DECL and RESULT_DECL, this is DECL_BY_REFERENCE. */
1839 unsigned decl_by_reference_flag
: 1;
1840 /* In a VAR_DECL and PARM_DECL, this is DECL_READ_P. */
1841 unsigned decl_read_flag
: 1;
1842 /* In a VAR_DECL or RESULT_DECL, this is DECL_NONSHAREABLE. */
1843 /* In a PARM_DECL, this is DECL_HIDDEN_STRING_LENGTH. */
1844 unsigned decl_nonshareable_flag
: 1;
1846 /* DECL_OFFSET_ALIGN, used only for FIELD_DECLs. */
1847 unsigned int off_align
: 6;
1849 /* DECL_ALIGN. It should have the same size as TYPE_ALIGN. */
1850 unsigned int align
: 6;
1852 /* DECL_WARN_IF_NOT_ALIGN. It should have the same size as
1853 TYPE_WARN_IF_NOT_ALIGN. */
1854 unsigned int warn_if_not_align
: 6;
1856 /* In FIELD_DECL, this is DECL_NOT_FLEXARRAY. */
1857 unsigned int decl_not_flexarray
: 1;
1859 /* 5 bits unused. */
1861 /* UID for points-to sets, stable over copying from inlining. */
1862 unsigned int pt_uid
;
1867 tree abstract_origin
;
1869 /* Points to a structure whose details depend on the language in use. */
1870 struct lang_decl
*lang_specific
;
1873 struct GTY(()) tree_decl_with_rtl
{
1874 struct tree_decl_common common
;
1878 struct GTY(()) tree_field_decl
{
1879 struct tree_decl_common common
;
1882 tree bit_field_type
;
1888 struct GTY(()) tree_label_decl
{
1889 struct tree_decl_with_rtl common
;
1891 int eh_landing_pad_nr
;
1894 struct GTY(()) tree_result_decl
{
1895 struct tree_decl_with_rtl common
;
1898 struct GTY(()) tree_const_decl
{
1899 struct tree_decl_common common
;
1902 struct GTY(()) tree_parm_decl
{
1903 struct tree_decl_with_rtl common
;
1907 struct GTY(()) tree_decl_with_vis
{
1908 struct tree_decl_with_rtl common
;
1909 tree assembler_name
;
1910 struct symtab_node
*symtab_node
;
1912 /* Belong to VAR_DECL exclusively. */
1913 unsigned defer_output
: 1;
1914 unsigned hard_register
: 1;
1915 unsigned common_flag
: 1;
1916 unsigned in_text_section
: 1;
1917 unsigned in_constant_pool
: 1;
1918 unsigned dllimport_flag
: 1;
1919 /* Don't belong to VAR_DECL exclusively. */
1920 unsigned weak_flag
: 1;
1922 unsigned seen_in_bind_expr
: 1;
1923 unsigned comdat_flag
: 1;
1924 /* Used for FUNCTION_DECL, VAR_DECL and in C++ for TYPE_DECL. */
1925 ENUM_BITFIELD(symbol_visibility
) visibility
: 2;
1926 unsigned visibility_specified
: 1;
1928 /* Belong to FUNCTION_DECL exclusively. */
1929 unsigned init_priority_p
: 1;
1930 /* Used by C++ only. Might become a generic decl flag. */
1931 unsigned shadowed_for_var_p
: 1;
1932 /* Belong to FUNCTION_DECL exclusively. */
1933 unsigned cxx_constructor
: 1;
1934 /* Belong to FUNCTION_DECL exclusively. */
1935 unsigned cxx_destructor
: 1;
1936 /* Belong to FUNCTION_DECL exclusively. */
1938 /* Belong to FUNCTION_DECL exclusively. */
1939 unsigned regdecl_flag
: 1;
1940 /* 14 unused bits. */
1941 /* 32 more unused on 64 bit HW. */
1944 struct GTY(()) tree_var_decl
{
1945 struct tree_decl_with_vis common
;
1948 struct GTY(()) tree_decl_non_common
{
1949 struct tree_decl_with_vis common
;
1950 /* Almost all FE's use this. */
1954 /* Classify a special function declaration type. */
1956 enum function_decl_type
1966 /* FUNCTION_DECL inherits from DECL_NON_COMMON because of the use of the
1967 arguments/result/saved_tree fields by front ends. It was either inherit
1968 FUNCTION_DECL from non_common, or inherit non_common from FUNCTION_DECL,
1969 which seemed a bit strange. */
1971 struct GTY(()) tree_function_decl
{
1972 struct tree_decl_non_common common
;
1976 /* Arguments of the function. */
1978 /* The personality function. Used for stack unwinding. */
1981 /* Function specific options that are used by this function. */
1982 tree function_specific_target
; /* target options */
1983 tree function_specific_optimization
; /* optimization options */
1985 /* Generic function body. */
1987 /* Index within a virtual table. */
1990 /* In a FUNCTION_DECL this is DECL_UNCHECKED_FUNCTION_CODE. */
1991 unsigned int function_code
;
1993 ENUM_BITFIELD(built_in_class
) built_in_class
: 2;
1994 unsigned static_ctor_flag
: 1;
1995 unsigned static_dtor_flag
: 1;
1996 unsigned uninlinable
: 1;
1997 unsigned possibly_inlined
: 1;
1998 unsigned novops_flag
: 1;
1999 unsigned returns_twice_flag
: 1;
2001 unsigned malloc_flag
: 1;
2002 unsigned declared_inline_flag
: 1;
2003 unsigned no_inline_warning_flag
: 1;
2004 unsigned no_instrument_function_entry_exit
: 1;
2005 unsigned no_limit_stack
: 1;
2006 unsigned disregard_inline_limits
: 1;
2007 unsigned pure_flag
: 1;
2008 unsigned looping_const_or_pure_flag
: 1;
2010 /* Align the bitfield to boundary of a byte. */
2011 ENUM_BITFIELD(function_decl_type
) decl_type
: 2;
2012 unsigned has_debug_args_flag
: 1;
2013 unsigned versioned_function
: 1;
2014 unsigned replaceable_operator
: 1;
2016 /* 11 bits left for future expansion. */
2017 /* 32 bits on 64-bit HW. */
2020 struct GTY(()) tree_translation_unit_decl
{
2021 struct tree_decl_common common
;
2022 /* Source language of this translation unit. Used for DWARF output. */
2023 const char *language
;
2024 /* TODO: Non-optimization used to build this translation unit. */
2025 /* TODO: Root of a partial DWARF tree for global types and decls. */
2028 struct GTY(()) tree_type_decl
{
2029 struct tree_decl_non_common common
;
2033 struct GTY ((chain_next ("%h.next"), chain_prev ("%h.prev"))) tree_statement_list_node
2035 struct tree_statement_list_node
*prev
;
2036 struct tree_statement_list_node
*next
;
2040 struct GTY(()) tree_statement_list
2042 struct tree_typed typed
;
2043 struct tree_statement_list_node
*head
;
2044 struct tree_statement_list_node
*tail
;
2048 /* Optimization options used by a function. */
2050 struct GTY(()) tree_optimization_option
{
2051 struct tree_base base
;
2053 /* The optimization options used by the user. */
2054 struct cl_optimization
*opts
;
2056 /* Target optabs for this set of optimization options. This is of
2057 type `struct target_optabs *'. */
2058 void *GTY ((atomic
)) optabs
;
2060 /* The value of this_target_optabs against which the optabs above were
2062 struct target_optabs
*GTY ((skip
)) base_optabs
;
2065 /* Forward declaration, defined in target-globals.h. */
2067 class GTY(()) target_globals
;
2069 /* Target options used by a function. */
2071 struct GTY(()) tree_target_option
{
2072 struct tree_base base
;
2074 /* Target globals for the corresponding target option. */
2075 class target_globals
*globals
;
2077 /* The optimization options used by the user. */
2078 struct cl_target_option
*opts
;
2081 /* Define the overall contents of a tree node.
2082 It may be any of the structures declared above
2083 for various types of node. */
2084 union GTY ((ptr_alias (union lang_tree_node
),
2085 desc ("tree_node_structure (&%h)"), variable_size
)) tree_node
{
2086 struct tree_base
GTY ((tag ("TS_BASE"))) base
;
2087 struct tree_typed
GTY ((tag ("TS_TYPED"))) typed
;
2088 struct tree_common
GTY ((tag ("TS_COMMON"))) common
;
2089 struct tree_int_cst
GTY ((tag ("TS_INT_CST"))) int_cst
;
2090 struct tree_poly_int_cst
GTY ((tag ("TS_POLY_INT_CST"))) poly_int_cst
;
2091 struct tree_real_cst
GTY ((tag ("TS_REAL_CST"))) real_cst
;
2092 struct tree_fixed_cst
GTY ((tag ("TS_FIXED_CST"))) fixed_cst
;
2093 struct tree_vector
GTY ((tag ("TS_VECTOR"))) vector
;
2094 struct tree_string
GTY ((tag ("TS_STRING"))) string
;
2095 struct tree_complex
GTY ((tag ("TS_COMPLEX"))) complex;
2096 struct tree_identifier
GTY ((tag ("TS_IDENTIFIER"))) identifier
;
2097 struct tree_decl_minimal
GTY((tag ("TS_DECL_MINIMAL"))) decl_minimal
;
2098 struct tree_decl_common
GTY ((tag ("TS_DECL_COMMON"))) decl_common
;
2099 struct tree_decl_with_rtl
GTY ((tag ("TS_DECL_WRTL"))) decl_with_rtl
;
2100 struct tree_decl_non_common
GTY ((tag ("TS_DECL_NON_COMMON")))
2102 struct tree_parm_decl
GTY ((tag ("TS_PARM_DECL"))) parm_decl
;
2103 struct tree_decl_with_vis
GTY ((tag ("TS_DECL_WITH_VIS"))) decl_with_vis
;
2104 struct tree_var_decl
GTY ((tag ("TS_VAR_DECL"))) var_decl
;
2105 struct tree_field_decl
GTY ((tag ("TS_FIELD_DECL"))) field_decl
;
2106 struct tree_label_decl
GTY ((tag ("TS_LABEL_DECL"))) label_decl
;
2107 struct tree_result_decl
GTY ((tag ("TS_RESULT_DECL"))) result_decl
;
2108 struct tree_const_decl
GTY ((tag ("TS_CONST_DECL"))) const_decl
;
2109 struct tree_type_decl
GTY ((tag ("TS_TYPE_DECL"))) type_decl
;
2110 struct tree_function_decl
GTY ((tag ("TS_FUNCTION_DECL"))) function_decl
;
2111 struct tree_translation_unit_decl
GTY ((tag ("TS_TRANSLATION_UNIT_DECL")))
2112 translation_unit_decl
;
2113 struct tree_type_common
GTY ((tag ("TS_TYPE_COMMON"))) type_common
;
2114 struct tree_type_with_lang_specific
GTY ((tag ("TS_TYPE_WITH_LANG_SPECIFIC")))
2115 type_with_lang_specific
;
2116 struct tree_type_non_common
GTY ((tag ("TS_TYPE_NON_COMMON")))
2118 struct tree_list
GTY ((tag ("TS_LIST"))) list
;
2119 struct tree_vec
GTY ((tag ("TS_VEC"))) vec
;
2120 struct tree_exp
GTY ((tag ("TS_EXP"))) exp
;
2121 struct tree_ssa_name
GTY ((tag ("TS_SSA_NAME"))) ssa_name
;
2122 struct tree_block
GTY ((tag ("TS_BLOCK"))) block
;
2123 struct tree_binfo
GTY ((tag ("TS_BINFO"))) binfo
;
2124 struct tree_statement_list
GTY ((tag ("TS_STATEMENT_LIST"))) stmt_list
;
2125 struct tree_constructor
GTY ((tag ("TS_CONSTRUCTOR"))) constructor
;
2126 struct tree_omp_clause
GTY ((tag ("TS_OMP_CLAUSE"))) omp_clause
;
2127 struct tree_optimization_option
GTY ((tag ("TS_OPTIMIZATION"))) optimization
;
2128 struct tree_target_option
GTY ((tag ("TS_TARGET_OPTION"))) target_option
;
2131 /* Structure describing an attribute and a function to handle it. */
2132 struct attribute_spec
{
2133 /* The name of the attribute (without any leading or trailing __),
2134 or NULL to mark the end of a table of attributes. */
2136 /* The minimum length of the list of arguments of the attribute. */
2138 /* The maximum length of the list of arguments of the attribute
2139 (-1 for no maximum). It can also be -2 for fake attributes
2140 created for the sake of -Wno-attributes; in that case, we
2141 should skip the balanced token sequence when parsing the attribute. */
2143 /* Whether this attribute requires a DECL. If it does, it will be passed
2144 from types of DECLs, function return types and array element types to
2145 the DECLs, function types and array types respectively; but when
2146 applied to a type in any other circumstances, it will be ignored with
2147 a warning. (If greater control is desired for a given attribute,
2148 this should be false, and the flags argument to the handler may be
2149 used to gain greater control in that case.) */
2151 /* Whether this attribute requires a type. If it does, it will be passed
2152 from a DECL to the type of that DECL. */
2154 /* Whether this attribute requires a function (or method) type. If it does,
2155 it will be passed from a function pointer type to the target type,
2156 and from a function return type (which is not itself a function
2157 pointer type) to the function type. */
2158 bool function_type_required
;
2159 /* Specifies if attribute affects type's identity. */
2160 bool affects_type_identity
;
2161 /* Function to handle this attribute. NODE points to a tree[3] array,
2162 where node[0] is the node to which the attribute is to be applied;
2163 node[1] is the last pushed/merged declaration if one exists, and node[2]
2164 may be the declaration for node[0]. If a DECL, it should be modified in
2165 place; if a TYPE, a copy should be created. NAME is the canonicalized
2166 name of the attribute i.e. without any leading or trailing underscores.
2167 ARGS is the TREE_LIST of the arguments (which may be NULL). FLAGS gives
2168 further information about the context of the attribute. Afterwards, the
2169 attributes will be added to the DECL_ATTRIBUTES or TYPE_ATTRIBUTES, as
2170 appropriate, unless *NO_ADD_ATTRS is set to true (which should be done on
2171 error, as well as in any other cases when the attributes should not be
2172 added to the DECL or TYPE). Depending on FLAGS, any attributes to be
2173 applied to another type or DECL later may be returned;
2174 otherwise the return value should be NULL_TREE. This pointer may be
2175 NULL if no special handling is required beyond the checks implied
2176 by the rest of this structure. */
2177 tree (*handler
) (tree
*node
, tree name
, tree args
,
2178 int flags
, bool *no_add_attrs
);
2180 /* Specifies the name of an attribute that's mutually exclusive with
2181 this one, and whether the relationship applies to the function,
2182 variable, or type form of the attribute. */
2190 /* An array of attribute exclusions describing names of other attributes
2191 that this attribute is mutually exclusive with. */
2192 const exclusions
*exclude
;
2195 /* These functions allow a front-end to perform a manual layout of a
2196 RECORD_TYPE. (For instance, if the placement of subsequent fields
2197 depends on the placement of fields so far.) Begin by calling
2198 start_record_layout. Then, call place_field for each of the
2199 fields. Then, call finish_record_layout. See layout_type for the
2200 default way in which these functions are used. */
2201 typedef struct record_layout_info_s
{
2202 /* The RECORD_TYPE that we are laying out. */
2204 /* The offset into the record so far, in bytes, not including bits in
2207 /* The last known alignment of SIZE. */
2208 unsigned int offset_align
;
2209 /* The bit position within the last OFFSET_ALIGN bits, in bits. */
2211 /* The alignment of the record so far, in bits. */
2212 unsigned int record_align
;
2213 /* The alignment of the record so far, ignoring #pragma pack and
2214 __attribute__ ((packed)), in bits. */
2215 unsigned int unpacked_align
;
2216 /* The previous field laid out. */
2218 /* The static variables (i.e., class variables, as opposed to
2219 instance variables) encountered in T. */
2220 vec
<tree
, va_gc
> *pending_statics
;
2221 /* Bits remaining in the current alignment group */
2222 int remaining_in_alignment
;
2223 /* True if we've seen a packed field that didn't have normal
2224 alignment anyway. */
2225 int packed_maybe_necessary
;
2226 } *record_layout_info
;
2228 /* Iterator for going through the function arguments. */
2229 struct function_args_iterator
{
2230 tree next
; /* TREE_LIST pointing to the next argument */
2233 /* Structures to map from a tree to another tree. */
2234 struct GTY(()) tree_map_base
{
2238 /* Map from a tree to another tree. */
2240 struct GTY((for_user
)) tree_map
{
2241 struct tree_map_base base
;
2246 /* Map from a decl tree to another tree. */
2247 struct GTY((for_user
)) tree_decl_map
{
2248 struct tree_map_base base
;
2252 /* Map from a tree to an int. */
2253 struct GTY((for_user
)) tree_int_map
{
2254 struct tree_map_base base
;
2258 /* Map from a decl tree to a tree vector. */
2259 struct GTY((for_user
)) tree_vec_map
{
2260 struct tree_map_base base
;
2261 vec
<tree
, va_gc
> *to
;
2264 /* Abstract iterators for CALL_EXPRs. These static inline definitions
2265 have to go towards the end of tree.h so that union tree_node is fully
2266 defined by this point. */
2268 /* Structure containing iterator state. */
2269 struct call_expr_arg_iterator
{
2270 tree t
; /* the call_expr */
2271 int n
; /* argument count */
2272 int i
; /* next argument index */
2275 struct const_call_expr_arg_iterator
{
2276 const_tree t
; /* the call_expr */
2277 int n
; /* argument count */
2278 int i
; /* next argument index */
2281 /* The builtin_info structure holds the FUNCTION_DECL of the standard builtin
2282 function, and flags. */
2283 struct GTY(()) builtin_info_type
{
2285 /* Whether the user can use <xxx> instead of explicitly using calls
2286 to __builtin_<xxx>. */
2287 unsigned implicit_p
: 1;
2288 /* Whether the user has provided a declaration of <xxx>. */
2289 unsigned declared_p
: 1;
2292 /* Information about a _FloatN or _FloatNx type that may be
2294 struct floatn_type_info
{
2295 /* The number N in the type name. */
2297 /* Whether it is an extended type _FloatNx (true) or an interchange
2303 /*---------------------------------------------------------------------------
2305 ---------------------------------------------------------------------------*/
2306 /* Matrix describing the structures contained in a given tree code. */
2307 extern bool tree_contains_struct
[MAX_TREE_CODES
][64];
2309 /* Class of tree given its code. */
2310 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
2311 #define END_OF_BASE_TREE_CODES tcc_exceptional,
2313 #if __cpp_inline_variables < 201606L
2315 struct tree_code_type_tmpl
{
2316 static constexpr enum tree_code_class tree_code_type
[] = {
2317 #include "all-tree.def"
2322 constexpr enum tree_code_class tree_code_type_tmpl
<N
>::tree_code_type
[];
2324 constexpr inline enum tree_code_class tree_code_type
[] = {
2325 #include "all-tree.def"
2330 #undef END_OF_BASE_TREE_CODES
2332 /* Each tree code class has an associated string representation.
2333 These must correspond to the tree_code_class entries. */
2334 extern const char *const tree_code_class_strings
[];
2336 /* Number of argument-words in each kind of tree-node. */
2338 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
2339 #define END_OF_BASE_TREE_CODES 0,
2341 #if __cpp_inline_variables < 201606L
2343 struct tree_code_length_tmpl
{
2344 static constexpr unsigned char tree_code_length
[] = {
2345 #include "all-tree.def"
2350 constexpr unsigned char tree_code_length_tmpl
<N
>::tree_code_length
[];
2352 constexpr inline unsigned char tree_code_length
[] = {
2353 #include "all-tree.def"
2358 #undef END_OF_BASE_TREE_CODES
2360 /* Vector of all alias pairs for global symbols. */
2361 extern GTY(()) vec
<alias_pair
, va_gc
> *alias_pairs
;
2363 /* Names of all the built_in classes. */
2364 extern const char *const built_in_class_names
[BUILT_IN_LAST
];
2366 /* Names of all the built_in functions. */
2367 extern const char * built_in_names
[(int) END_BUILTINS
];
2369 /* Number of operands and names for each OMP_CLAUSE node. */
2370 extern unsigned const char omp_clause_num_ops
[];
2371 extern const char * const omp_clause_code_name
[];
2372 extern const char *user_omp_clause_code_name (tree
, bool);
2374 /* A vector of all translation-units. */
2375 extern GTY (()) vec
<tree
, va_gc
> *all_translation_units
;
2377 /* Vector of standard trees used by the C compiler. */
2378 extern GTY(()) tree global_trees
[TI_MAX
];
2380 /* The standard C integer types. Use integer_type_kind to index into
2382 extern GTY(()) tree integer_types
[itk_none
];
2384 /* Types used to represent sizes. */
2385 extern GTY(()) tree sizetype_tab
[(int) stk_type_kind_last
];
2387 /* Arrays for keeping track of tree node statistics. */
2388 extern uint64_t tree_node_counts
[];
2389 extern uint64_t tree_node_sizes
[];
2391 /* True if we are in gimple form and the actions of the folders need to
2392 be restricted. False if we are not in gimple form and folding is not
2393 restricted to creating gimple expressions. */
2394 extern bool in_gimple_form
;
2396 /* Functional interface to the builtin functions. */
2397 extern GTY(()) builtin_info_type builtin_info
[(int)END_BUILTINS
];
2399 /* If nonzero, an upper limit on alignment of structure fields, in bits, */
2400 extern unsigned int maximum_field_alignment
;
2402 /* Points to the FUNCTION_DECL of the function whose body we are reading. */
2403 extern GTY(()) tree current_function_decl
;
2405 /* Nonzero means a FUNC_BEGIN label was emitted. */
2406 extern GTY(()) const char * current_function_func_begin_label
;
2408 /* Information about the _FloatN and _FloatNx types. */
2409 extern const floatn_type_info floatn_nx_types
[NUM_FLOATN_NX_TYPES
];
2411 #endif // GCC_TREE_CORE_H