Fix version check for ATTRIBUTE_GCC_DUMP_PRINTF
[official-gcc.git] / gcc / tree-core.h
blobf98cfefef94cff7427a5e744c3bab2c8bff4ddb3
1 /* Core data structures for the 'tree' type.
2 Copyright (C) 1989-2018 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
9 version.
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
14 for more details.
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
23 #include "symtab.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 ---------------------------------------------------------------------------*/
32 struct function;
33 struct real_value;
34 struct fixed_value;
35 struct ptr_info_def;
36 struct range_info_def;
37 struct die_struct;
40 /*---------------------------------------------------------------------------
41 #defined constants
42 ---------------------------------------------------------------------------*/
43 /* Nonzero if this is a call to a function whose return value depends
44 solely on its arguments, has no side effects, and does not read
45 global memory. This corresponds to TREE_READONLY for function
46 decls. */
47 #define ECF_CONST (1 << 0)
49 /* Nonzero if this is a call to "pure" function (like const function,
50 but may read memory. This corresponds to DECL_PURE_P for function
51 decls. */
52 #define ECF_PURE (1 << 1)
54 /* Nonzero if this is ECF_CONST or ECF_PURE but cannot be proven to no
55 infinite loop. This corresponds to DECL_LOOPING_CONST_OR_PURE_P
56 for function decls.*/
57 #define ECF_LOOPING_CONST_OR_PURE (1 << 2)
59 /* Nonzero if this call will never return. */
60 #define ECF_NORETURN (1 << 3)
62 /* Nonzero if this is a call to malloc or a related function. */
63 #define ECF_MALLOC (1 << 4)
65 /* Nonzero if it is plausible that this is a call to alloca. */
66 #define ECF_MAY_BE_ALLOCA (1 << 5)
68 /* Nonzero if this is a call to a function that won't throw an exception. */
69 #define ECF_NOTHROW (1 << 6)
71 /* Nonzero if this is a call to setjmp or a related function. */
72 #define ECF_RETURNS_TWICE (1 << 7)
74 /* Nonzero if this call replaces the current stack frame. */
75 #define ECF_SIBCALL (1 << 8)
77 /* Function does not read or write memory (but may have side effects, so
78 it does not necessarily fit ECF_CONST). */
79 #define ECF_NOVOPS (1 << 9)
81 /* The function does not lead to calls within current function unit. */
82 #define ECF_LEAF (1 << 10)
84 /* Nonzero if this call returns its first argument. */
85 #define ECF_RET1 (1 << 11)
87 /* Nonzero if this call does not affect transactions. */
88 #define ECF_TM_PURE (1 << 12)
90 /* Nonzero if this call is into the transaction runtime library. */
91 #define ECF_TM_BUILTIN (1 << 13)
93 /* Nonzero if this is an indirect call by descriptor. */
94 #define ECF_BY_DESCRIPTOR (1 << 14)
96 /* Nonzero if this is a cold function. */
97 #define ECF_COLD (1 << 15)
99 /* Call argument flags. */
100 /* Nonzero if the argument is not dereferenced recursively, thus only
101 directly reachable memory is read or written. */
102 #define EAF_DIRECT (1 << 0)
104 /* Nonzero if memory reached by the argument is not clobbered. */
105 #define EAF_NOCLOBBER (1 << 1)
107 /* Nonzero if the argument does not escape. */
108 #define EAF_NOESCAPE (1 << 2)
110 /* Nonzero if the argument is not used by the function. */
111 #define EAF_UNUSED (1 << 3)
113 /* Call return flags. */
114 /* Mask for the argument number that is returned. Lower two bits of
115 the return flags, encodes argument slots zero to three. */
116 #define ERF_RETURN_ARG_MASK (3)
118 /* Nonzero if the return value is equal to the argument number
119 flags & ERF_RETURN_ARG_MASK. */
120 #define ERF_RETURNS_ARG (1 << 2)
122 /* Nonzero if the return value does not alias with anything. Functions
123 with the malloc attribute have this set on their return value. */
124 #define ERF_NOALIAS (1 << 3)
127 /*---------------------------------------------------------------------------
128 Enumerations
129 ---------------------------------------------------------------------------*/
130 /* Codes of tree nodes. */
131 #define DEFTREECODE(SYM, STRING, TYPE, NARGS) SYM,
132 #define END_OF_BASE_TREE_CODES LAST_AND_UNUSED_TREE_CODE,
134 enum tree_code {
135 #include "all-tree.def"
136 MAX_TREE_CODES
139 #undef DEFTREECODE
140 #undef END_OF_BASE_TREE_CODES
142 /* Number of language-independent tree codes. */
143 #define NUM_TREE_CODES \
144 ((int) LAST_AND_UNUSED_TREE_CODE)
146 #define CODE_CONTAINS_STRUCT(CODE, STRUCT) \
147 (tree_contains_struct[(CODE)][(STRUCT)])
150 /* Classify which part of the compiler has defined a given builtin function.
151 Note that we assume below that this is no more than two bits. */
152 enum built_in_class {
153 NOT_BUILT_IN = 0,
154 BUILT_IN_FRONTEND,
155 BUILT_IN_MD,
156 BUILT_IN_NORMAL
159 /* Last marker used for LTO stremaing of built_in_class. We can not add it
160 to the enum since we need the enumb to fit in 2 bits. */
161 #define BUILT_IN_LAST (BUILT_IN_NORMAL + 1)
163 /* Codes that identify the various built in functions
164 so that expand_call can identify them quickly. */
165 #define DEF_BUILTIN(ENUM, N, C, T, LT, B, F, NA, AT, IM, COND) ENUM,
166 enum built_in_function {
167 #include "builtins.def"
168 /* Complex division routines in libgcc. These are done via builtins
169 because emit_library_call_value can't handle complex values. */
170 BUILT_IN_COMPLEX_MUL_MIN,
171 BUILT_IN_COMPLEX_MUL_MAX
172 = BUILT_IN_COMPLEX_MUL_MIN
173 + MAX_MODE_COMPLEX_FLOAT
174 - MIN_MODE_COMPLEX_FLOAT,
176 BUILT_IN_COMPLEX_DIV_MIN,
177 BUILT_IN_COMPLEX_DIV_MAX
178 = BUILT_IN_COMPLEX_DIV_MIN
179 + MAX_MODE_COMPLEX_FLOAT
180 - MIN_MODE_COMPLEX_FLOAT,
182 /* Upper bound on non-language-specific builtins. */
183 END_BUILTINS
186 /* Internal functions. */
187 enum internal_fn {
188 #define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) IFN_##CODE,
189 #include "internal-fn.def"
190 IFN_LAST
193 /* An enum that combines target-independent built-in functions with
194 internal functions, so that they can be treated in a similar way.
195 The numbers for built-in functions are the same as for the
196 built_in_function enum. The numbers for internal functions
197 start at END_BUITLINS. */
198 enum combined_fn {
199 #define DEF_BUILTIN(ENUM, N, C, T, LT, B, F, NA, AT, IM, COND) \
200 CFN_##ENUM = int (ENUM),
201 #include "builtins.def"
204 #define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) \
205 CFN_##CODE = int (END_BUILTINS) + int (IFN_##CODE),
206 #include "internal-fn.def"
208 CFN_LAST
211 /* Tree code classes. Each tree_code has an associated code class
212 represented by a TREE_CODE_CLASS. */
213 enum tree_code_class {
214 tcc_exceptional, /* An exceptional code (fits no category). */
215 tcc_constant, /* A constant. */
216 /* Order of tcc_type and tcc_declaration is important. */
217 tcc_type, /* A type object code. */
218 tcc_declaration, /* A declaration (also serving as variable refs). */
219 tcc_reference, /* A reference to storage. */
220 tcc_comparison, /* A comparison expression. */
221 tcc_unary, /* A unary arithmetic expression. */
222 tcc_binary, /* A binary arithmetic expression. */
223 tcc_statement, /* A statement expression, which have side effects
224 but usually no interesting value. */
225 tcc_vl_exp, /* A function call or other expression with a
226 variable-length operand vector. */
227 tcc_expression /* Any other expression. */
230 /* OMP_CLAUSE codes. Do not reorder, as this is used to index into
231 the tables omp_clause_num_ops and omp_clause_code_name. */
232 enum omp_clause_code {
233 /* Clause zero is special-cased inside the parser
234 (c_parser_omp_variable_list). */
235 OMP_CLAUSE_ERROR = 0,
237 /* OpenACC/OpenMP clause: private (variable_list). */
238 OMP_CLAUSE_PRIVATE,
240 /* OpenMP clause: shared (variable_list). */
241 OMP_CLAUSE_SHARED,
243 /* OpenACC/OpenMP clause: firstprivate (variable_list). */
244 OMP_CLAUSE_FIRSTPRIVATE,
246 /* OpenMP clause: lastprivate (variable_list). */
247 OMP_CLAUSE_LASTPRIVATE,
249 /* OpenACC/OpenMP clause: reduction (operator:variable_list).
250 OMP_CLAUSE_REDUCTION_CODE: The tree_code of the operator.
251 Operand 1: OMP_CLAUSE_REDUCTION_INIT: Stmt-list to initialize the var.
252 Operand 2: OMP_CLAUSE_REDUCTION_MERGE: Stmt-list to merge private var
253 into the shared one.
254 Operand 3: OMP_CLAUSE_REDUCTION_PLACEHOLDER: A dummy VAR_DECL
255 placeholder used in OMP_CLAUSE_REDUCTION_{INIT,MERGE}.
256 Operand 4: OMP_CLAUSE_REDUCTION_DECL_PLACEHOLDER: Another dummy
257 VAR_DECL placeholder, used like the above for C/C++ array
258 reductions. */
259 OMP_CLAUSE_REDUCTION,
261 /* OpenMP clause: copyin (variable_list). */
262 OMP_CLAUSE_COPYIN,
264 /* OpenMP clause: copyprivate (variable_list). */
265 OMP_CLAUSE_COPYPRIVATE,
267 /* OpenMP clause: linear (variable-list[:linear-step]). */
268 OMP_CLAUSE_LINEAR,
270 /* OpenMP clause: aligned (variable-list[:alignment]). */
271 OMP_CLAUSE_ALIGNED,
273 /* OpenMP clause: depend ({in,out,inout}:variable-list). */
274 OMP_CLAUSE_DEPEND,
276 /* OpenMP clause: uniform (argument-list). */
277 OMP_CLAUSE_UNIFORM,
279 /* OpenMP clause: to (extended-list).
280 Only when it appears in declare target. */
281 OMP_CLAUSE_TO_DECLARE,
283 /* OpenMP clause: link (variable-list). */
284 OMP_CLAUSE_LINK,
286 /* OpenMP clause: from (variable-list). */
287 OMP_CLAUSE_FROM,
289 /* OpenMP clause: to (variable-list). */
290 OMP_CLAUSE_TO,
292 /* OpenACC clauses: {copy, copyin, copyout, create, delete, deviceptr,
293 device, host (self), present, present_or_copy (pcopy), present_or_copyin
294 (pcopyin), present_or_copyout (pcopyout), present_or_create (pcreate)}
295 (variable-list).
297 OpenMP clause: map ({alloc:,to:,from:,tofrom:,}variable-list). */
298 OMP_CLAUSE_MAP,
300 /* OpenACC clause: use_device (variable_list).
301 OpenMP clause: use_device_ptr (variable-list). */
302 OMP_CLAUSE_USE_DEVICE_PTR,
304 /* OpenMP clause: is_device_ptr (variable-list). */
305 OMP_CLAUSE_IS_DEVICE_PTR,
307 /* Internal structure to hold OpenACC cache directive's variable-list.
308 #pragma acc cache (variable-list). */
309 OMP_CLAUSE__CACHE_,
311 /* OpenACC clause: gang [(gang-argument-list)].
312 Where
313 gang-argument-list: [gang-argument-list, ] gang-argument
314 gang-argument: [num:] integer-expression
315 | static: size-expression
316 size-expression: * | integer-expression. */
317 OMP_CLAUSE_GANG,
319 /* OpenACC clause: async [(integer-expression)]. */
320 OMP_CLAUSE_ASYNC,
322 /* OpenACC clause: wait [(integer-expression-list)]. */
323 OMP_CLAUSE_WAIT,
325 /* OpenACC clause: auto. */
326 OMP_CLAUSE_AUTO,
328 /* OpenACC clause: seq. */
329 OMP_CLAUSE_SEQ,
331 /* Internal clause: temporary for combined loops expansion. */
332 OMP_CLAUSE__LOOPTEMP_,
334 /* OpenACC/OpenMP clause: if (scalar-expression). */
335 OMP_CLAUSE_IF,
337 /* OpenMP clause: num_threads (integer-expression). */
338 OMP_CLAUSE_NUM_THREADS,
340 /* OpenMP clause: schedule. */
341 OMP_CLAUSE_SCHEDULE,
343 /* OpenMP clause: nowait. */
344 OMP_CLAUSE_NOWAIT,
346 /* OpenMP clause: ordered [(constant-integer-expression)]. */
347 OMP_CLAUSE_ORDERED,
349 /* OpenACC/OpenMP clause: default. */
350 OMP_CLAUSE_DEFAULT,
352 /* OpenACC/OpenMP clause: collapse (constant-integer-expression). */
353 OMP_CLAUSE_COLLAPSE,
355 /* OpenMP clause: untied. */
356 OMP_CLAUSE_UNTIED,
358 /* OpenMP clause: final (scalar-expression). */
359 OMP_CLAUSE_FINAL,
361 /* OpenMP clause: mergeable. */
362 OMP_CLAUSE_MERGEABLE,
364 /* OpenMP clause: device (integer-expression). */
365 OMP_CLAUSE_DEVICE,
367 /* OpenMP clause: dist_schedule (static[:chunk-size]). */
368 OMP_CLAUSE_DIST_SCHEDULE,
370 /* OpenMP clause: inbranch. */
371 OMP_CLAUSE_INBRANCH,
373 /* OpenMP clause: notinbranch. */
374 OMP_CLAUSE_NOTINBRANCH,
376 /* OpenMP clause: num_teams(integer-expression). */
377 OMP_CLAUSE_NUM_TEAMS,
379 /* OpenMP clause: thread_limit(integer-expression). */
380 OMP_CLAUSE_THREAD_LIMIT,
382 /* OpenMP clause: proc_bind ({master,close,spread}). */
383 OMP_CLAUSE_PROC_BIND,
385 /* OpenMP clause: safelen (constant-integer-expression). */
386 OMP_CLAUSE_SAFELEN,
388 /* OpenMP clause: simdlen (constant-integer-expression). */
389 OMP_CLAUSE_SIMDLEN,
391 /* OpenMP clause: for. */
392 OMP_CLAUSE_FOR,
394 /* OpenMP clause: parallel. */
395 OMP_CLAUSE_PARALLEL,
397 /* OpenMP clause: sections. */
398 OMP_CLAUSE_SECTIONS,
400 /* OpenMP clause: taskgroup. */
401 OMP_CLAUSE_TASKGROUP,
403 /* OpenMP clause: priority (integer-expression). */
404 OMP_CLAUSE_PRIORITY,
406 /* OpenMP clause: grainsize (integer-expression). */
407 OMP_CLAUSE_GRAINSIZE,
409 /* OpenMP clause: num_tasks (integer-expression). */
410 OMP_CLAUSE_NUM_TASKS,
412 /* OpenMP clause: nogroup. */
413 OMP_CLAUSE_NOGROUP,
415 /* OpenMP clause: threads. */
416 OMP_CLAUSE_THREADS,
418 /* OpenMP clause: simd. */
419 OMP_CLAUSE_SIMD,
421 /* OpenMP clause: hint (integer-expression). */
422 OMP_CLAUSE_HINT,
424 /* OpenMP clause: defaultmap (tofrom: scalar). */
425 OMP_CLAUSE_DEFAULTMAP,
427 /* Internally used only clause, holding SIMD uid. */
428 OMP_CLAUSE__SIMDUID_,
430 /* Internally used only clause, flag whether this is SIMT simd
431 loop or not. */
432 OMP_CLAUSE__SIMT_,
434 /* OpenACC clause: independent. */
435 OMP_CLAUSE_INDEPENDENT,
437 /* OpenACC clause: worker [( [num:] integer-expression)]. */
438 OMP_CLAUSE_WORKER,
440 /* OpenACC clause: vector [( [length:] integer-expression)]. */
441 OMP_CLAUSE_VECTOR,
443 /* OpenACC clause: num_gangs (integer-expression). */
444 OMP_CLAUSE_NUM_GANGS,
446 /* OpenACC clause: num_workers (integer-expression). */
447 OMP_CLAUSE_NUM_WORKERS,
449 /* OpenACC clause: vector_length (integer-expression). */
450 OMP_CLAUSE_VECTOR_LENGTH,
452 /* OpenACC clause: tile ( size-expr-list ). */
453 OMP_CLAUSE_TILE,
455 /* OpenMP internal-only clause to specify grid dimensions of a gridified
456 kernel. */
457 OMP_CLAUSE__GRIDDIM_,
459 /* OpenACC clause: if_present. */
460 OMP_CLAUSE_IF_PRESENT,
462 /* OpenACC clause: finalize. */
463 OMP_CLAUSE_FINALIZE
466 #undef DEFTREESTRUCT
467 #define DEFTREESTRUCT(ENUM, NAME) ENUM,
468 enum tree_node_structure_enum {
469 #include "treestruct.def"
470 LAST_TS_ENUM
472 #undef DEFTREESTRUCT
474 enum omp_clause_schedule_kind {
475 OMP_CLAUSE_SCHEDULE_STATIC,
476 OMP_CLAUSE_SCHEDULE_DYNAMIC,
477 OMP_CLAUSE_SCHEDULE_GUIDED,
478 OMP_CLAUSE_SCHEDULE_AUTO,
479 OMP_CLAUSE_SCHEDULE_RUNTIME,
480 OMP_CLAUSE_SCHEDULE_MASK = (1 << 3) - 1,
481 OMP_CLAUSE_SCHEDULE_MONOTONIC = (1 << 3),
482 OMP_CLAUSE_SCHEDULE_NONMONOTONIC = (1 << 4),
483 OMP_CLAUSE_SCHEDULE_LAST = 2 * OMP_CLAUSE_SCHEDULE_NONMONOTONIC - 1
486 enum omp_clause_default_kind {
487 OMP_CLAUSE_DEFAULT_UNSPECIFIED,
488 OMP_CLAUSE_DEFAULT_SHARED,
489 OMP_CLAUSE_DEFAULT_NONE,
490 OMP_CLAUSE_DEFAULT_PRIVATE,
491 OMP_CLAUSE_DEFAULT_FIRSTPRIVATE,
492 OMP_CLAUSE_DEFAULT_PRESENT,
493 OMP_CLAUSE_DEFAULT_LAST
496 /* There is a TYPE_QUAL value for each type qualifier. They can be
497 combined by bitwise-or to form the complete set of qualifiers for a
498 type. */
499 enum cv_qualifier {
500 TYPE_UNQUALIFIED = 0x0,
501 TYPE_QUAL_CONST = 0x1,
502 TYPE_QUAL_VOLATILE = 0x2,
503 TYPE_QUAL_RESTRICT = 0x4,
504 TYPE_QUAL_ATOMIC = 0x8
507 /* Standard named or nameless data types of the C compiler. */
508 enum tree_index {
509 TI_ERROR_MARK,
510 TI_INTQI_TYPE,
511 TI_INTHI_TYPE,
512 TI_INTSI_TYPE,
513 TI_INTDI_TYPE,
514 TI_INTTI_TYPE,
516 TI_UINTQI_TYPE,
517 TI_UINTHI_TYPE,
518 TI_UINTSI_TYPE,
519 TI_UINTDI_TYPE,
520 TI_UINTTI_TYPE,
522 TI_ATOMICQI_TYPE,
523 TI_ATOMICHI_TYPE,
524 TI_ATOMICSI_TYPE,
525 TI_ATOMICDI_TYPE,
526 TI_ATOMICTI_TYPE,
528 TI_UINT16_TYPE,
529 TI_UINT32_TYPE,
530 TI_UINT64_TYPE,
532 TI_VOID,
534 TI_INTEGER_ZERO,
535 TI_INTEGER_ONE,
536 TI_INTEGER_THREE,
537 TI_INTEGER_MINUS_ONE,
538 TI_NULL_POINTER,
540 TI_SIZE_ZERO,
541 TI_SIZE_ONE,
543 TI_BITSIZE_ZERO,
544 TI_BITSIZE_ONE,
545 TI_BITSIZE_UNIT,
547 TI_PUBLIC,
548 TI_PROTECTED,
549 TI_PRIVATE,
551 TI_BOOLEAN_FALSE,
552 TI_BOOLEAN_TRUE,
554 TI_FLOAT_TYPE,
555 TI_DOUBLE_TYPE,
556 TI_LONG_DOUBLE_TYPE,
558 /* The _FloatN and _FloatNx types must be consecutive, and in the
559 same sequence as the corresponding complex types, which must also
560 be consecutive; _FloatN must come before _FloatNx; the order must
561 also be the same as in the floatn_nx_types array and the RID_*
562 values in c-common.h. This is so that iterations over these
563 types work as intended. */
564 TI_FLOAT16_TYPE,
565 TI_FLOATN_TYPE_FIRST = TI_FLOAT16_TYPE,
566 TI_FLOATN_NX_TYPE_FIRST = TI_FLOAT16_TYPE,
567 TI_FLOAT32_TYPE,
568 TI_FLOAT64_TYPE,
569 TI_FLOAT128_TYPE,
570 TI_FLOATN_TYPE_LAST = TI_FLOAT128_TYPE,
571 #define NUM_FLOATN_TYPES (TI_FLOATN_TYPE_LAST - TI_FLOATN_TYPE_FIRST + 1)
572 TI_FLOAT32X_TYPE,
573 TI_FLOATNX_TYPE_FIRST = TI_FLOAT32X_TYPE,
574 TI_FLOAT64X_TYPE,
575 TI_FLOAT128X_TYPE,
576 TI_FLOATNX_TYPE_LAST = TI_FLOAT128X_TYPE,
577 TI_FLOATN_NX_TYPE_LAST = TI_FLOAT128X_TYPE,
578 #define NUM_FLOATNX_TYPES (TI_FLOATNX_TYPE_LAST - TI_FLOATNX_TYPE_FIRST + 1)
579 #define NUM_FLOATN_NX_TYPES (TI_FLOATN_NX_TYPE_LAST \
580 - TI_FLOATN_NX_TYPE_FIRST \
581 + 1)
583 /* Put the complex types after their component types, so that in (sequential)
584 tree streaming we can assert that their component types have already been
585 handled (see tree-streamer.c:record_common_node). */
586 TI_COMPLEX_INTEGER_TYPE,
587 TI_COMPLEX_FLOAT_TYPE,
588 TI_COMPLEX_DOUBLE_TYPE,
589 TI_COMPLEX_LONG_DOUBLE_TYPE,
591 TI_COMPLEX_FLOAT16_TYPE,
592 TI_COMPLEX_FLOATN_NX_TYPE_FIRST = TI_COMPLEX_FLOAT16_TYPE,
593 TI_COMPLEX_FLOAT32_TYPE,
594 TI_COMPLEX_FLOAT64_TYPE,
595 TI_COMPLEX_FLOAT128_TYPE,
596 TI_COMPLEX_FLOAT32X_TYPE,
597 TI_COMPLEX_FLOAT64X_TYPE,
598 TI_COMPLEX_FLOAT128X_TYPE,
600 TI_FLOAT_PTR_TYPE,
601 TI_DOUBLE_PTR_TYPE,
602 TI_LONG_DOUBLE_PTR_TYPE,
603 TI_INTEGER_PTR_TYPE,
605 TI_VOID_TYPE,
606 TI_PTR_TYPE,
607 TI_CONST_PTR_TYPE,
608 TI_SIZE_TYPE,
609 TI_PID_TYPE,
610 TI_PTRDIFF_TYPE,
611 TI_VA_LIST_TYPE,
612 TI_VA_LIST_GPR_COUNTER_FIELD,
613 TI_VA_LIST_FPR_COUNTER_FIELD,
614 TI_BOOLEAN_TYPE,
615 TI_FILEPTR_TYPE,
616 TI_CONST_TM_PTR_TYPE,
617 TI_FENV_T_PTR_TYPE,
618 TI_CONST_FENV_T_PTR_TYPE,
619 TI_FEXCEPT_T_PTR_TYPE,
620 TI_CONST_FEXCEPT_T_PTR_TYPE,
621 TI_POINTER_SIZED_TYPE,
623 TI_DFLOAT32_TYPE,
624 TI_DFLOAT64_TYPE,
625 TI_DFLOAT128_TYPE,
626 TI_DFLOAT32_PTR_TYPE,
627 TI_DFLOAT64_PTR_TYPE,
628 TI_DFLOAT128_PTR_TYPE,
630 TI_VOID_LIST_NODE,
632 TI_MAIN_IDENTIFIER,
634 TI_SAT_SFRACT_TYPE,
635 TI_SAT_FRACT_TYPE,
636 TI_SAT_LFRACT_TYPE,
637 TI_SAT_LLFRACT_TYPE,
638 TI_SAT_USFRACT_TYPE,
639 TI_SAT_UFRACT_TYPE,
640 TI_SAT_ULFRACT_TYPE,
641 TI_SAT_ULLFRACT_TYPE,
642 TI_SFRACT_TYPE,
643 TI_FRACT_TYPE,
644 TI_LFRACT_TYPE,
645 TI_LLFRACT_TYPE,
646 TI_USFRACT_TYPE,
647 TI_UFRACT_TYPE,
648 TI_ULFRACT_TYPE,
649 TI_ULLFRACT_TYPE,
650 TI_SAT_SACCUM_TYPE,
651 TI_SAT_ACCUM_TYPE,
652 TI_SAT_LACCUM_TYPE,
653 TI_SAT_LLACCUM_TYPE,
654 TI_SAT_USACCUM_TYPE,
655 TI_SAT_UACCUM_TYPE,
656 TI_SAT_ULACCUM_TYPE,
657 TI_SAT_ULLACCUM_TYPE,
658 TI_SACCUM_TYPE,
659 TI_ACCUM_TYPE,
660 TI_LACCUM_TYPE,
661 TI_LLACCUM_TYPE,
662 TI_USACCUM_TYPE,
663 TI_UACCUM_TYPE,
664 TI_ULACCUM_TYPE,
665 TI_ULLACCUM_TYPE,
666 TI_QQ_TYPE,
667 TI_HQ_TYPE,
668 TI_SQ_TYPE,
669 TI_DQ_TYPE,
670 TI_TQ_TYPE,
671 TI_UQQ_TYPE,
672 TI_UHQ_TYPE,
673 TI_USQ_TYPE,
674 TI_UDQ_TYPE,
675 TI_UTQ_TYPE,
676 TI_SAT_QQ_TYPE,
677 TI_SAT_HQ_TYPE,
678 TI_SAT_SQ_TYPE,
679 TI_SAT_DQ_TYPE,
680 TI_SAT_TQ_TYPE,
681 TI_SAT_UQQ_TYPE,
682 TI_SAT_UHQ_TYPE,
683 TI_SAT_USQ_TYPE,
684 TI_SAT_UDQ_TYPE,
685 TI_SAT_UTQ_TYPE,
686 TI_HA_TYPE,
687 TI_SA_TYPE,
688 TI_DA_TYPE,
689 TI_TA_TYPE,
690 TI_UHA_TYPE,
691 TI_USA_TYPE,
692 TI_UDA_TYPE,
693 TI_UTA_TYPE,
694 TI_SAT_HA_TYPE,
695 TI_SAT_SA_TYPE,
696 TI_SAT_DA_TYPE,
697 TI_SAT_TA_TYPE,
698 TI_SAT_UHA_TYPE,
699 TI_SAT_USA_TYPE,
700 TI_SAT_UDA_TYPE,
701 TI_SAT_UTA_TYPE,
703 TI_OPTIMIZATION_DEFAULT,
704 TI_OPTIMIZATION_CURRENT,
705 TI_TARGET_OPTION_DEFAULT,
706 TI_TARGET_OPTION_CURRENT,
707 TI_CURRENT_TARGET_PRAGMA,
708 TI_CURRENT_OPTIMIZE_PRAGMA,
710 TI_MAX
713 /* An enumeration of the standard C integer types. These must be
714 ordered so that shorter types appear before longer ones, and so
715 that signed types appear before unsigned ones, for the correct
716 functioning of interpret_integer() in c-lex.c. */
717 enum integer_type_kind {
718 itk_char,
719 itk_signed_char,
720 itk_unsigned_char,
721 itk_short,
722 itk_unsigned_short,
723 itk_int,
724 itk_unsigned_int,
725 itk_long,
726 itk_unsigned_long,
727 itk_long_long,
728 itk_unsigned_long_long,
730 itk_intN_0,
731 itk_unsigned_intN_0,
732 itk_intN_1,
733 itk_unsigned_intN_1,
734 itk_intN_2,
735 itk_unsigned_intN_2,
736 itk_intN_3,
737 itk_unsigned_intN_3,
739 itk_none
742 /* A pointer-to-function member type looks like:
744 struct {
745 __P __pfn;
746 ptrdiff_t __delta;
749 If __pfn is NULL, it is a NULL pointer-to-member-function.
751 (Because the vtable is always the first thing in the object, we
752 don't need its offset.) If the function is virtual, then PFN is
753 one plus twice the index into the vtable; otherwise, it is just a
754 pointer to the function.
756 Unfortunately, using the lowest bit of PFN doesn't work in
757 architectures that don't impose alignment requirements on function
758 addresses, or that use the lowest bit to tell one ISA from another,
759 for example. For such architectures, we use the lowest bit of
760 DELTA instead of the lowest bit of the PFN, and DELTA will be
761 multiplied by 2. */
762 enum ptrmemfunc_vbit_where_t {
763 ptrmemfunc_vbit_in_pfn,
764 ptrmemfunc_vbit_in_delta
767 /* Flags that may be passed in the third argument of decl_attributes, and
768 to handler functions for attributes. */
769 enum attribute_flags {
770 /* The type passed in is the type of a DECL, and any attributes that
771 should be passed in again to be applied to the DECL rather than the
772 type should be returned. */
773 ATTR_FLAG_DECL_NEXT = 1,
774 /* The type passed in is a function return type, and any attributes that
775 should be passed in again to be applied to the function type rather
776 than the return type should be returned. */
777 ATTR_FLAG_FUNCTION_NEXT = 2,
778 /* The type passed in is an array element type, and any attributes that
779 should be passed in again to be applied to the array type rather
780 than the element type should be returned. */
781 ATTR_FLAG_ARRAY_NEXT = 4,
782 /* The type passed in is a structure, union or enumeration type being
783 created, and should be modified in place. */
784 ATTR_FLAG_TYPE_IN_PLACE = 8,
785 /* The attributes are being applied by default to a library function whose
786 name indicates known behavior, and should be silently ignored if they
787 are not in fact compatible with the function type. */
788 ATTR_FLAG_BUILT_IN = 16,
789 /* A given attribute has been parsed as a C++-11 attribute. */
790 ATTR_FLAG_CXX11 = 32
793 /* Types used to represent sizes. */
794 enum size_type_kind {
795 stk_sizetype, /* Normal representation of sizes in bytes. */
796 stk_ssizetype, /* Signed representation of sizes in bytes. */
797 stk_bitsizetype, /* Normal representation of sizes in bits. */
798 stk_sbitsizetype, /* Signed representation of sizes in bits. */
799 stk_type_kind_last
802 enum operand_equal_flag {
803 OEP_ONLY_CONST = 1,
804 OEP_PURE_SAME = 2,
805 OEP_MATCH_SIDE_EFFECTS = 4,
806 OEP_ADDRESS_OF = 8,
807 /* Internal within operand_equal_p: */
808 OEP_NO_HASH_CHECK = 16,
809 /* Internal within inchash::add_expr: */
810 OEP_HASH_CHECK = 32,
811 /* Makes operand_equal_p handle more expressions: */
812 OEP_LEXICOGRAPHIC = 64
815 /* Enum and arrays used for tree allocation stats.
816 Keep in sync with tree.c:tree_node_kind_names. */
817 enum tree_node_kind {
818 d_kind,
819 t_kind,
820 b_kind,
821 s_kind,
822 r_kind,
823 e_kind,
824 c_kind,
825 id_kind,
826 vec_kind,
827 binfo_kind,
828 ssa_name_kind,
829 constr_kind,
830 x_kind,
831 lang_decl,
832 lang_type,
833 omp_clause_kind,
834 all_kinds
837 enum annot_expr_kind {
838 annot_expr_ivdep_kind,
839 annot_expr_unroll_kind,
840 annot_expr_no_vector_kind,
841 annot_expr_vector_kind,
842 annot_expr_parallel_kind,
843 annot_expr_kind_last
846 /*---------------------------------------------------------------------------
847 Type definitions
848 ---------------------------------------------------------------------------*/
849 /* When processing aliases at the symbol table level, we need the
850 declaration of target. For this reason we need to queue aliases and
851 process them after all declarations has been produced. */
852 struct GTY(()) alias_pair {
853 tree decl;
854 tree target;
857 /* An initialization priority. */
858 typedef unsigned short priority_type;
860 /* The type of a callback function for walking over tree structure. */
861 typedef tree (*walk_tree_fn) (tree *, int *, void *);
863 /* The type of a callback function that represents a custom walk_tree. */
864 typedef tree (*walk_tree_lh) (tree *, int *, tree (*) (tree *, int *, void *),
865 void *, hash_set<tree> *);
868 /*---------------------------------------------------------------------------
869 Main data structures
870 ---------------------------------------------------------------------------*/
871 /* A tree node can represent a data type, a variable, an expression
872 or a statement. Each node has a TREE_CODE which says what kind of
873 thing it represents. Some common codes are:
874 INTEGER_TYPE -- represents a type of integers.
875 ARRAY_TYPE -- represents a type of pointer.
876 VAR_DECL -- represents a declared variable.
877 INTEGER_CST -- represents a constant integer value.
878 PLUS_EXPR -- represents a sum (an expression).
880 As for the contents of a tree node: there are some fields
881 that all nodes share. Each TREE_CODE has various special-purpose
882 fields as well. The fields of a node are never accessed directly,
883 always through accessor macros. */
885 /* Every kind of tree node starts with this structure,
886 so all nodes have these fields.
888 See the accessor macros, defined below, for documentation of the
889 fields, and the table below which connects the fields and the
890 accessor macros. */
892 struct GTY(()) tree_base {
893 ENUM_BITFIELD(tree_code) code : 16;
895 unsigned side_effects_flag : 1;
896 unsigned constant_flag : 1;
897 unsigned addressable_flag : 1;
898 unsigned volatile_flag : 1;
899 unsigned readonly_flag : 1;
900 unsigned asm_written_flag: 1;
901 unsigned nowarning_flag : 1;
902 unsigned visited : 1;
904 unsigned used_flag : 1;
905 unsigned nothrow_flag : 1;
906 unsigned static_flag : 1;
907 unsigned public_flag : 1;
908 unsigned private_flag : 1;
909 unsigned protected_flag : 1;
910 unsigned deprecated_flag : 1;
911 unsigned default_def_flag : 1;
913 union {
914 /* The bits in the following structure should only be used with
915 accessor macros that constrain inputs with tree checking. */
916 struct {
917 unsigned lang_flag_0 : 1;
918 unsigned lang_flag_1 : 1;
919 unsigned lang_flag_2 : 1;
920 unsigned lang_flag_3 : 1;
921 unsigned lang_flag_4 : 1;
922 unsigned lang_flag_5 : 1;
923 unsigned lang_flag_6 : 1;
924 unsigned saturating_flag : 1;
926 unsigned unsigned_flag : 1;
927 unsigned packed_flag : 1;
928 unsigned user_align : 1;
929 unsigned nameless_flag : 1;
930 unsigned atomic_flag : 1;
931 unsigned spare0 : 3;
933 unsigned spare1 : 8;
935 /* This field is only used with TREE_TYPE nodes; the only reason it is
936 present in tree_base instead of tree_type is to save space. The size
937 of the field must be large enough to hold addr_space_t values. */
938 unsigned address_space : 8;
939 } bits;
941 /* The following fields are present in tree_base to save space. The
942 nodes using them do not require any of the flags above and so can
943 make better use of the 4-byte sized word. */
945 /* The number of HOST_WIDE_INTs in an INTEGER_CST. */
946 struct {
947 /* The number of HOST_WIDE_INTs if the INTEGER_CST is accessed in
948 its native precision. */
949 unsigned char unextended;
951 /* The number of HOST_WIDE_INTs if the INTEGER_CST is extended to
952 wider precisions based on its TYPE_SIGN. */
953 unsigned char extended;
955 /* The number of HOST_WIDE_INTs if the INTEGER_CST is accessed in
956 offset_int precision, with smaller integers being extended
957 according to their TYPE_SIGN. This is equal to one of the two
958 fields above but is cached for speed. */
959 unsigned char offset;
960 } int_length;
962 /* VEC length. This field is only used with TREE_VEC. */
963 int length;
965 /* This field is only used with VECTOR_CST. */
966 struct {
967 /* The value of VECTOR_CST_LOG2_NPATTERNS. */
968 unsigned int log2_npatterns : 8;
970 /* The value of VECTOR_CST_NELTS_PER_PATTERN. */
971 unsigned int nelts_per_pattern : 8;
973 /* For future expansion. */
974 unsigned int unused : 16;
975 } vector_cst;
977 /* SSA version number. This field is only used with SSA_NAME. */
978 unsigned int version;
980 /* CHREC_VARIABLE. This field is only used with POLYNOMIAL_CHREC. */
981 unsigned int chrec_var;
983 /* Internal function code. */
984 enum internal_fn ifn;
986 /* The following two fields are used for MEM_REF and TARGET_MEM_REF
987 expression trees and specify known data non-dependences. For
988 two memory references in a function they are known to not
989 alias if dependence_info.clique are equal and dependence_info.base
990 are distinct. */
991 struct {
992 unsigned short clique;
993 unsigned short base;
994 } dependence_info;
995 } GTY((skip(""))) u;
998 /* The following table lists the uses of each of the above flags and
999 for which types of nodes they are defined.
1001 addressable_flag:
1003 TREE_ADDRESSABLE in
1004 VAR_DECL, PARM_DECL, RESULT_DECL, FUNCTION_DECL, LABEL_DECL
1005 SSA_NAME
1006 all types
1007 CONSTRUCTOR, IDENTIFIER_NODE
1008 STMT_EXPR
1010 CALL_EXPR_TAILCALL in
1011 CALL_EXPR
1013 CASE_LOW_SEEN in
1014 CASE_LABEL_EXPR
1016 PREDICT_EXPR_OUTCOME in
1017 PREDICT_EXPR
1019 static_flag:
1021 TREE_STATIC in
1022 VAR_DECL, FUNCTION_DECL
1023 CONSTRUCTOR
1025 TREE_NO_TRAMPOLINE in
1026 ADDR_EXPR
1028 BINFO_VIRTUAL_P in
1029 TREE_BINFO
1031 TREE_SYMBOL_REFERENCED in
1032 IDENTIFIER_NODE
1034 CLEANUP_EH_ONLY in
1035 TARGET_EXPR, WITH_CLEANUP_EXPR
1037 TRY_CATCH_IS_CLEANUP in
1038 TRY_CATCH_EXPR
1040 ASM_INPUT_P in
1041 ASM_EXPR
1043 TYPE_REF_CAN_ALIAS_ALL in
1044 POINTER_TYPE, REFERENCE_TYPE
1046 CASE_HIGH_SEEN in
1047 CASE_LABEL_EXPR
1049 ENUM_IS_SCOPED in
1050 ENUMERAL_TYPE
1052 TRANSACTION_EXPR_OUTER in
1053 TRANSACTION_EXPR
1055 SSA_NAME_ANTI_RANGE_P in
1056 SSA_NAME
1058 MUST_TAIL_CALL in
1059 CALL_EXPR
1061 public_flag:
1063 TREE_OVERFLOW in
1064 INTEGER_CST, REAL_CST, COMPLEX_CST, VECTOR_CST
1066 TREE_PUBLIC in
1067 VAR_DECL, FUNCTION_DECL
1068 IDENTIFIER_NODE
1070 CONSTRUCTOR_NO_CLEARING in
1071 CONSTRUCTOR
1073 ASM_VOLATILE_P in
1074 ASM_EXPR
1076 CALL_EXPR_VA_ARG_PACK in
1077 CALL_EXPR
1079 TYPE_CACHED_VALUES_P in
1080 all types
1082 SAVE_EXPR_RESOLVED_P in
1083 SAVE_EXPR
1085 OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE in
1086 OMP_CLAUSE_LASTPRIVATE
1088 OMP_CLAUSE_PRIVATE_DEBUG in
1089 OMP_CLAUSE_PRIVATE
1091 OMP_CLAUSE_LINEAR_NO_COPYIN in
1092 OMP_CLAUSE_LINEAR
1094 OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION in
1095 OMP_CLAUSE_MAP
1097 OMP_CLAUSE_REDUCTION_OMP_ORIG_REF in
1098 OMP_CLAUSE_REDUCTION
1100 TRANSACTION_EXPR_RELAXED in
1101 TRANSACTION_EXPR
1103 FALLTHROUGH_LABEL_P in
1104 LABEL_DECL
1106 SSA_NAME_IS_VIRTUAL_OPERAND in
1107 SSA_NAME
1109 EXPR_LOCATION_WRAPPER_P in
1110 NON_LVALUE_EXPR, VIEW_CONVERT_EXPR
1112 private_flag:
1114 TREE_PRIVATE in
1115 all decls
1117 CALL_EXPR_RETURN_SLOT_OPT in
1118 CALL_EXPR
1120 OMP_SECTION_LAST in
1121 OMP_SECTION
1123 OMP_PARALLEL_COMBINED in
1124 OMP_PARALLEL
1126 OMP_ATOMIC_SEQ_CST in
1127 OMP_ATOMIC*
1129 OMP_CLAUSE_PRIVATE_OUTER_REF in
1130 OMP_CLAUSE_PRIVATE
1132 OMP_CLAUSE_LINEAR_NO_COPYOUT in
1133 OMP_CLAUSE_LINEAR
1135 TYPE_REF_IS_RVALUE in
1136 REFERENCE_TYPE
1138 ENUM_IS_OPAQUE in
1139 ENUMERAL_TYPE
1141 protected_flag:
1143 TREE_PROTECTED in
1144 BLOCK
1145 all decls
1147 CALL_FROM_THUNK_P and
1148 CALL_ALLOCA_FOR_VAR_P in
1149 CALL_EXPR
1151 OMP_CLAUSE_LINEAR_VARIABLE_STRIDE in
1152 OMP_CLAUSE_LINEAR
1154 side_effects_flag:
1156 TREE_SIDE_EFFECTS in
1157 all expressions
1158 all decls
1159 all constants
1161 FORCED_LABEL in
1162 LABEL_DECL
1164 volatile_flag:
1166 TREE_THIS_VOLATILE in
1167 all expressions
1168 all decls
1170 TYPE_VOLATILE in
1171 all types
1173 readonly_flag:
1175 TREE_READONLY in
1176 all expressions
1177 all decls
1179 TYPE_READONLY in
1180 all types
1182 constant_flag:
1184 TREE_CONSTANT in
1185 all expressions
1186 all decls
1187 all constants
1189 TYPE_SIZES_GIMPLIFIED in
1190 all types
1192 unsigned_flag:
1194 TYPE_UNSIGNED in
1195 all types
1197 DECL_UNSIGNED in
1198 all decls
1200 asm_written_flag:
1202 TREE_ASM_WRITTEN in
1203 VAR_DECL, FUNCTION_DECL, TYPE_DECL
1204 RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE
1205 BLOCK, STRING_CST
1207 SSA_NAME_OCCURS_IN_ABNORMAL_PHI in
1208 SSA_NAME
1210 used_flag:
1212 TREE_USED in
1213 all expressions
1214 all decls
1215 IDENTIFIER_NODE
1217 nothrow_flag:
1219 TREE_NOTHROW in
1220 CALL_EXPR
1221 FUNCTION_DECL
1223 TREE_THIS_NOTRAP in
1224 INDIRECT_REF, MEM_REF, TARGET_MEM_REF, ARRAY_REF, ARRAY_RANGE_REF
1226 SSA_NAME_IN_FREE_LIST in
1227 SSA_NAME
1229 DECL_NONALIASED in
1230 VAR_DECL
1232 deprecated_flag:
1234 TREE_DEPRECATED in
1235 all decls
1236 all types
1238 IDENTIFIER_TRANSPARENT_ALIAS in
1239 IDENTIFIER_NODE
1241 visited:
1243 TREE_VISITED in
1244 all trees (used liberally by many passes)
1246 saturating_flag:
1248 TYPE_REVERSE_STORAGE_ORDER in
1249 RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE, ARRAY_TYPE
1251 TYPE_SATURATING in
1252 other types
1254 VAR_DECL_IS_VIRTUAL_OPERAND in
1255 VAR_DECL
1257 nowarning_flag:
1259 TREE_NO_WARNING in
1260 all expressions
1261 all decls
1263 TYPE_ARTIFICIAL in
1264 all types
1266 default_def_flag:
1268 TYPE_FINAL_P in
1269 RECORD_TYPE, UNION_TYPE and QUAL_UNION_TYPE
1271 TYPE_VECTOR_OPAQUE in
1272 VECTOR_TYPE
1274 SSA_NAME_IS_DEFAULT_DEF in
1275 SSA_NAME
1277 DECL_NONLOCAL_FRAME in
1278 VAR_DECL
1280 REF_REVERSE_STORAGE_ORDER in
1281 BIT_FIELD_REF, MEM_REF
1283 FUNC_ADDR_BY_DESCRIPTOR in
1284 ADDR_EXPR
1286 CALL_EXPR_BY_DESCRIPTOR in
1287 CALL_EXPR
1290 struct GTY(()) tree_typed {
1291 struct tree_base base;
1292 tree type;
1295 struct GTY(()) tree_common {
1296 struct tree_typed typed;
1297 tree chain;
1300 struct GTY(()) tree_int_cst {
1301 struct tree_typed typed;
1302 HOST_WIDE_INT val[1];
1306 struct GTY(()) tree_real_cst {
1307 struct tree_typed typed;
1308 struct real_value * real_cst_ptr;
1311 struct GTY(()) tree_fixed_cst {
1312 struct tree_typed typed;
1313 struct fixed_value * fixed_cst_ptr;
1316 struct GTY(()) tree_string {
1317 struct tree_typed typed;
1318 int length;
1319 char str[1];
1322 struct GTY(()) tree_complex {
1323 struct tree_typed typed;
1324 tree real;
1325 tree imag;
1328 struct GTY(()) tree_vector {
1329 struct tree_typed typed;
1330 tree GTY ((length ("vector_cst_encoded_nelts ((tree) &%h)"))) elts[1];
1333 struct GTY(()) tree_poly_int_cst {
1334 struct tree_typed typed;
1335 tree coeffs[NUM_POLY_INT_COEFFS];
1338 struct GTY(()) tree_identifier {
1339 struct tree_common common;
1340 struct ht_identifier id;
1343 struct GTY(()) tree_list {
1344 struct tree_common common;
1345 tree purpose;
1346 tree value;
1349 struct GTY(()) tree_vec {
1350 struct tree_common common;
1351 tree GTY ((length ("TREE_VEC_LENGTH ((tree)&%h)"))) a[1];
1354 /* A single element of a CONSTRUCTOR. VALUE holds the actual value of the
1355 element. INDEX can optionally design the position of VALUE: in arrays,
1356 it is the index where VALUE has to be placed; in structures, it is the
1357 FIELD_DECL of the member. */
1358 struct GTY(()) constructor_elt {
1359 tree index;
1360 tree value;
1363 struct GTY(()) tree_constructor {
1364 struct tree_typed typed;
1365 vec<constructor_elt, va_gc> *elts;
1368 enum omp_clause_depend_kind
1370 OMP_CLAUSE_DEPEND_IN,
1371 OMP_CLAUSE_DEPEND_OUT,
1372 OMP_CLAUSE_DEPEND_INOUT,
1373 OMP_CLAUSE_DEPEND_SOURCE,
1374 OMP_CLAUSE_DEPEND_SINK,
1375 OMP_CLAUSE_DEPEND_LAST
1378 enum omp_clause_proc_bind_kind
1380 /* Numbers should match omp_proc_bind_t enum in omp.h. */
1381 OMP_CLAUSE_PROC_BIND_FALSE = 0,
1382 OMP_CLAUSE_PROC_BIND_TRUE = 1,
1383 OMP_CLAUSE_PROC_BIND_MASTER = 2,
1384 OMP_CLAUSE_PROC_BIND_CLOSE = 3,
1385 OMP_CLAUSE_PROC_BIND_SPREAD = 4,
1386 OMP_CLAUSE_PROC_BIND_LAST
1389 enum omp_clause_linear_kind
1391 OMP_CLAUSE_LINEAR_DEFAULT,
1392 OMP_CLAUSE_LINEAR_REF,
1393 OMP_CLAUSE_LINEAR_VAL,
1394 OMP_CLAUSE_LINEAR_UVAL
1397 struct GTY(()) tree_exp {
1398 struct tree_typed typed;
1399 location_t locus;
1400 tree GTY ((special ("tree_exp"),
1401 desc ("TREE_CODE ((tree) &%0)")))
1402 operands[1];
1405 /* Immediate use linking structure. This structure is used for maintaining
1406 a doubly linked list of uses of an SSA_NAME. */
1407 struct GTY(()) ssa_use_operand_t {
1408 struct ssa_use_operand_t* GTY((skip(""))) prev;
1409 struct ssa_use_operand_t* GTY((skip(""))) next;
1410 /* Immediate uses for a given SSA name are maintained as a cyclic
1411 list. To recognize the root of this list, the location field
1412 needs to point to the original SSA name. Since statements and
1413 SSA names are of different data types, we need this union. See
1414 the explanation in struct imm_use_iterator. */
1415 union { gimple *stmt; tree ssa_name; } GTY((skip(""))) loc;
1416 tree *GTY((skip(""))) use;
1419 struct GTY(()) tree_ssa_name {
1420 struct tree_typed typed;
1422 /* _DECL wrapped by this SSA name. */
1423 tree var;
1425 /* Statement that defines this SSA name. */
1426 gimple *def_stmt;
1428 /* Value range information. */
1429 union ssa_name_info_type {
1430 /* Pointer attributes used for alias analysis. */
1431 struct GTY ((tag ("0"))) ptr_info_def *ptr_info;
1432 /* Value range attributes used for zero/sign extension elimination. */
1433 struct GTY ((tag ("1"))) range_info_def *range_info;
1434 } GTY ((desc ("%1.typed.type ?" \
1435 "!POINTER_TYPE_P (TREE_TYPE ((tree)&%1)) : 2"))) info;
1437 /* Immediate uses list for this SSA_NAME. */
1438 struct ssa_use_operand_t imm_uses;
1441 struct GTY(()) phi_arg_d {
1442 /* imm_use MUST be the first element in struct because we do some
1443 pointer arithmetic with it. See phi_arg_index_from_use. */
1444 struct ssa_use_operand_t imm_use;
1445 tree def;
1446 location_t locus;
1449 struct GTY(()) tree_omp_clause {
1450 struct tree_common common;
1451 location_t locus;
1452 enum omp_clause_code code;
1453 union omp_clause_subcode {
1454 enum omp_clause_default_kind default_kind;
1455 enum omp_clause_schedule_kind schedule_kind;
1456 enum omp_clause_depend_kind depend_kind;
1457 /* See include/gomp-constants.h for enum gomp_map_kind's values. */
1458 unsigned int map_kind;
1459 enum omp_clause_proc_bind_kind proc_bind_kind;
1460 enum tree_code reduction_code;
1461 enum omp_clause_linear_kind linear_kind;
1462 enum tree_code if_modifier;
1463 /* The dimension a OMP_CLAUSE__GRIDDIM_ clause of a gridified target
1464 construct describes. */
1465 unsigned int dimension;
1466 } GTY ((skip)) subcode;
1468 /* The gimplification of OMP_CLAUSE_REDUCTION_{INIT,MERGE} for omp-low's
1469 usage. */
1470 gimple_seq gimple_reduction_init;
1471 gimple_seq gimple_reduction_merge;
1473 tree GTY ((length ("omp_clause_num_ops[OMP_CLAUSE_CODE ((tree)&%h)]")))
1474 ops[1];
1477 struct GTY(()) tree_block {
1478 struct tree_base base;
1479 tree chain;
1481 unsigned abstract_flag : 1;
1482 unsigned block_num : 31;
1484 location_t locus;
1485 location_t end_locus;
1487 tree vars;
1488 vec<tree, va_gc> *nonlocalized_vars;
1490 tree subblocks;
1491 tree supercontext;
1492 tree abstract_origin;
1493 tree fragment_origin;
1494 tree fragment_chain;
1496 /* Pointer to the DWARF lexical block. */
1497 struct die_struct *die;
1500 struct GTY(()) tree_type_common {
1501 struct tree_common common;
1502 tree size;
1503 tree size_unit;
1504 tree attributes;
1505 unsigned int uid;
1507 unsigned int precision : 10;
1508 unsigned no_force_blk_flag : 1;
1509 unsigned needs_constructing_flag : 1;
1510 unsigned transparent_aggr_flag : 1;
1511 unsigned restrict_flag : 1;
1512 unsigned contains_placeholder_bits : 2;
1514 ENUM_BITFIELD(machine_mode) mode : 8;
1516 unsigned string_flag : 1;
1517 unsigned lang_flag_0 : 1;
1518 unsigned lang_flag_1 : 1;
1519 unsigned lang_flag_2 : 1;
1520 unsigned lang_flag_3 : 1;
1521 unsigned lang_flag_4 : 1;
1522 unsigned lang_flag_5 : 1;
1523 unsigned lang_flag_6 : 1;
1524 unsigned lang_flag_7 : 1;
1526 /* TYPE_ALIGN in log2; this has to be large enough to hold values
1527 of the maximum of BIGGEST_ALIGNMENT and MAX_OFILE_ALIGNMENT,
1528 the latter being usually the larger. For ELF it is 8<<28,
1529 so we need to store the value 32 (not 31, as we need the zero
1530 as well), hence six bits. */
1531 unsigned align : 6;
1532 unsigned warn_if_not_align : 6;
1533 unsigned typeless_storage : 1;
1534 unsigned empty_flag : 1;
1535 unsigned spare : 17;
1537 alias_set_type alias_set;
1538 tree pointer_to;
1539 tree reference_to;
1540 union tree_type_symtab {
1541 int GTY ((tag ("TYPE_SYMTAB_IS_ADDRESS"))) address;
1542 struct die_struct * GTY ((tag ("TYPE_SYMTAB_IS_DIE"))) die;
1543 } GTY ((desc ("debug_hooks->tree_type_symtab_field"))) symtab;
1544 tree canonical;
1545 tree next_variant;
1546 tree main_variant;
1547 tree context;
1548 tree name;
1551 struct GTY(()) tree_type_with_lang_specific {
1552 struct tree_type_common common;
1553 /* Points to a structure whose details depend on the language in use. */
1554 struct lang_type *lang_specific;
1557 struct GTY(()) tree_type_non_common {
1558 struct tree_type_with_lang_specific with_lang_specific;
1559 tree values;
1560 tree minval;
1561 tree maxval;
1562 tree lang_1;
1565 struct GTY (()) tree_binfo {
1566 struct tree_common common;
1568 tree offset;
1569 tree vtable;
1570 tree virtuals;
1571 tree vptr_field;
1572 vec<tree, va_gc> *base_accesses;
1573 tree inheritance;
1575 tree vtt_subvtt;
1576 tree vtt_vptr;
1578 vec<tree, va_gc> base_binfos;
1581 struct GTY(()) tree_decl_minimal {
1582 struct tree_common common;
1583 location_t locus;
1584 unsigned int uid;
1585 tree name;
1586 tree context;
1589 struct GTY(()) tree_decl_common {
1590 struct tree_decl_minimal common;
1591 tree size;
1593 ENUM_BITFIELD(machine_mode) mode : 8;
1595 unsigned nonlocal_flag : 1;
1596 unsigned virtual_flag : 1;
1597 unsigned ignored_flag : 1;
1598 unsigned abstract_flag : 1;
1599 unsigned artificial_flag : 1;
1600 unsigned preserve_flag: 1;
1601 unsigned debug_expr_is_from : 1;
1603 unsigned lang_flag_0 : 1;
1604 unsigned lang_flag_1 : 1;
1605 unsigned lang_flag_2 : 1;
1606 unsigned lang_flag_3 : 1;
1607 unsigned lang_flag_4 : 1;
1608 unsigned lang_flag_5 : 1;
1609 unsigned lang_flag_6 : 1;
1610 unsigned lang_flag_7 : 1;
1611 unsigned lang_flag_8 : 1;
1613 /* In VAR_DECL and PARM_DECL, this is DECL_REGISTER
1614 IN TRANSLATION_UNIT_DECL, this is TRANSLATION_UNIT_WARN_EMPTY_P. */
1615 unsigned decl_flag_0 : 1;
1616 /* In FIELD_DECL, this is DECL_BIT_FIELD
1617 In VAR_DECL and FUNCTION_DECL, this is DECL_EXTERNAL.
1618 In TYPE_DECL, this is TYPE_DECL_SUPPRESS_DEBUG. */
1619 unsigned decl_flag_1 : 1;
1620 /* In FIELD_DECL, this is DECL_NONADDRESSABLE_P
1621 In VAR_DECL, PARM_DECL and RESULT_DECL, this is
1622 DECL_HAS_VALUE_EXPR_P. */
1623 unsigned decl_flag_2 : 1;
1624 /* In FIELD_DECL, this is DECL_PADDING_P. */
1625 unsigned decl_flag_3 : 1;
1626 /* Logically, these two would go in a theoretical base shared by var and
1627 parm decl. */
1628 unsigned gimple_reg_flag : 1;
1629 /* In VAR_DECL, PARM_DECL and RESULT_DECL, this is DECL_BY_REFERENCE. */
1630 unsigned decl_by_reference_flag : 1;
1631 /* In a VAR_DECL and PARM_DECL, this is DECL_READ_P. */
1632 unsigned decl_read_flag : 1;
1633 /* In a VAR_DECL or RESULT_DECL, this is DECL_NONSHAREABLE. */
1634 unsigned decl_nonshareable_flag : 1;
1636 /* DECL_OFFSET_ALIGN, used only for FIELD_DECLs. */
1637 unsigned int off_align : 6;
1639 /* DECL_ALIGN. It should have the same size as TYPE_ALIGN. */
1640 unsigned int align : 6;
1642 /* DECL_WARN_IF_NOT_ALIGN. It should have the same size as
1643 TYPE_WARN_IF_NOT_ALIGN. */
1644 unsigned int warn_if_not_align : 6;
1646 /* 14 bits unused. */
1648 /* UID for points-to sets, stable over copying from inlining. */
1649 unsigned int pt_uid;
1651 tree size_unit;
1652 tree initial;
1653 tree attributes;
1654 tree abstract_origin;
1656 /* Points to a structure whose details depend on the language in use. */
1657 struct lang_decl *lang_specific;
1660 struct GTY(()) tree_decl_with_rtl {
1661 struct tree_decl_common common;
1662 rtx rtl;
1665 struct GTY(()) tree_field_decl {
1666 struct tree_decl_common common;
1668 tree offset;
1669 tree bit_field_type;
1670 tree qualifier;
1671 tree bit_offset;
1672 tree fcontext;
1675 struct GTY(()) tree_label_decl {
1676 struct tree_decl_with_rtl common;
1677 int label_decl_uid;
1678 int eh_landing_pad_nr;
1681 struct GTY(()) tree_result_decl {
1682 struct tree_decl_with_rtl common;
1685 struct GTY(()) tree_const_decl {
1686 struct tree_decl_common common;
1689 struct GTY(()) tree_parm_decl {
1690 struct tree_decl_with_rtl common;
1691 rtx incoming_rtl;
1694 struct GTY(()) tree_decl_with_vis {
1695 struct tree_decl_with_rtl common;
1696 tree assembler_name;
1697 struct symtab_node *symtab_node;
1699 /* Belong to VAR_DECL exclusively. */
1700 unsigned defer_output : 1;
1701 unsigned hard_register : 1;
1702 unsigned common_flag : 1;
1703 unsigned in_text_section : 1;
1704 unsigned in_constant_pool : 1;
1705 unsigned dllimport_flag : 1;
1706 /* Don't belong to VAR_DECL exclusively. */
1707 unsigned weak_flag : 1;
1709 unsigned seen_in_bind_expr : 1;
1710 unsigned comdat_flag : 1;
1711 /* Used for FUNCTION_DECL, VAR_DECL and in C++ for TYPE_DECL. */
1712 ENUM_BITFIELD(symbol_visibility) visibility : 2;
1713 unsigned visibility_specified : 1;
1715 /* Belong to FUNCTION_DECL exclusively. */
1716 unsigned init_priority_p : 1;
1717 /* Used by C++ only. Might become a generic decl flag. */
1718 unsigned shadowed_for_var_p : 1;
1719 /* Belong to FUNCTION_DECL exclusively. */
1720 unsigned cxx_constructor : 1;
1721 /* Belong to FUNCTION_DECL exclusively. */
1722 unsigned cxx_destructor : 1;
1723 /* Belong to FUNCTION_DECL exclusively. */
1724 unsigned final : 1;
1725 /* Belong to FUNCTION_DECL exclusively. */
1726 unsigned regdecl_flag : 1;
1727 /* 14 unused bits. */
1730 struct GTY(()) tree_var_decl {
1731 struct tree_decl_with_vis common;
1734 struct GTY(()) tree_decl_non_common {
1735 struct tree_decl_with_vis common;
1736 /* Almost all FE's use this. */
1737 tree result;
1740 /* FUNCTION_DECL inherits from DECL_NON_COMMON because of the use of the
1741 arguments/result/saved_tree fields by front ends. It was either inherit
1742 FUNCTION_DECL from non_common, or inherit non_common from FUNCTION_DECL,
1743 which seemed a bit strange. */
1745 struct GTY(()) tree_function_decl {
1746 struct tree_decl_non_common common;
1748 struct function *f;
1750 /* Arguments of the function. */
1751 tree arguments;
1752 /* The personality function. Used for stack unwinding. */
1753 tree personality;
1755 /* Function specific options that are used by this function. */
1756 tree function_specific_target; /* target options */
1757 tree function_specific_optimization; /* optimization options */
1759 /* Generic function body. */
1760 tree saved_tree;
1761 /* Index within a virtual table. */
1762 tree vindex;
1764 /* In a FUNCTION_DECL for which DECL_BUILT_IN holds, this is
1765 DECL_FUNCTION_CODE. Otherwise unused.
1766 ??? The bitfield needs to be able to hold all target function
1767 codes as well. */
1768 ENUM_BITFIELD(built_in_function) function_code : 12;
1769 ENUM_BITFIELD(built_in_class) built_in_class : 2;
1771 unsigned static_ctor_flag : 1;
1772 unsigned static_dtor_flag : 1;
1774 unsigned uninlinable : 1;
1775 unsigned possibly_inlined : 1;
1776 unsigned novops_flag : 1;
1777 unsigned returns_twice_flag : 1;
1778 unsigned malloc_flag : 1;
1779 unsigned operator_new_flag : 1;
1780 unsigned declared_inline_flag : 1;
1781 unsigned no_inline_warning_flag : 1;
1783 unsigned no_instrument_function_entry_exit : 1;
1784 unsigned no_limit_stack : 1;
1785 unsigned disregard_inline_limits : 1;
1786 unsigned pure_flag : 1;
1787 unsigned looping_const_or_pure_flag : 1;
1788 unsigned has_debug_args_flag : 1;
1789 unsigned tm_clone_flag : 1;
1790 unsigned versioned_function : 1;
1791 /* No bits left. */
1794 struct GTY(()) tree_translation_unit_decl {
1795 struct tree_decl_common common;
1796 /* Source language of this translation unit. Used for DWARF output. */
1797 const char * GTY((skip(""))) language;
1798 /* TODO: Non-optimization used to build this translation unit. */
1799 /* TODO: Root of a partial DWARF tree for global types and decls. */
1802 struct GTY(()) tree_type_decl {
1803 struct tree_decl_non_common common;
1807 struct GTY ((chain_next ("%h.next"), chain_prev ("%h.prev"))) tree_statement_list_node
1809 struct tree_statement_list_node *prev;
1810 struct tree_statement_list_node *next;
1811 tree stmt;
1814 struct GTY(()) tree_statement_list
1816 struct tree_typed typed;
1817 struct tree_statement_list_node *head;
1818 struct tree_statement_list_node *tail;
1822 /* Optimization options used by a function. */
1824 struct GTY(()) tree_optimization_option {
1825 struct tree_base base;
1827 /* The optimization options used by the user. */
1828 struct cl_optimization *opts;
1830 /* Target optabs for this set of optimization options. This is of
1831 type `struct target_optabs *'. */
1832 void *GTY ((atomic)) optabs;
1834 /* The value of this_target_optabs against which the optabs above were
1835 generated. */
1836 struct target_optabs *GTY ((skip)) base_optabs;
1839 /* Forward declaration, defined in target-globals.h. */
1841 struct GTY(()) target_globals;
1843 /* Target options used by a function. */
1845 struct GTY(()) tree_target_option {
1846 struct tree_base base;
1848 /* Target globals for the corresponding target option. */
1849 struct target_globals *globals;
1851 /* The optimization options used by the user. */
1852 struct cl_target_option *opts;
1855 /* Define the overall contents of a tree node.
1856 It may be any of the structures declared above
1857 for various types of node. */
1858 union GTY ((ptr_alias (union lang_tree_node),
1859 desc ("tree_node_structure (&%h)"), variable_size)) tree_node {
1860 struct tree_base GTY ((tag ("TS_BASE"))) base;
1861 struct tree_typed GTY ((tag ("TS_TYPED"))) typed;
1862 struct tree_common GTY ((tag ("TS_COMMON"))) common;
1863 struct tree_int_cst GTY ((tag ("TS_INT_CST"))) int_cst;
1864 struct tree_poly_int_cst GTY ((tag ("TS_POLY_INT_CST"))) poly_int_cst;
1865 struct tree_real_cst GTY ((tag ("TS_REAL_CST"))) real_cst;
1866 struct tree_fixed_cst GTY ((tag ("TS_FIXED_CST"))) fixed_cst;
1867 struct tree_vector GTY ((tag ("TS_VECTOR"))) vector;
1868 struct tree_string GTY ((tag ("TS_STRING"))) string;
1869 struct tree_complex GTY ((tag ("TS_COMPLEX"))) complex;
1870 struct tree_identifier GTY ((tag ("TS_IDENTIFIER"))) identifier;
1871 struct tree_decl_minimal GTY((tag ("TS_DECL_MINIMAL"))) decl_minimal;
1872 struct tree_decl_common GTY ((tag ("TS_DECL_COMMON"))) decl_common;
1873 struct tree_decl_with_rtl GTY ((tag ("TS_DECL_WRTL"))) decl_with_rtl;
1874 struct tree_decl_non_common GTY ((tag ("TS_DECL_NON_COMMON")))
1875 decl_non_common;
1876 struct tree_parm_decl GTY ((tag ("TS_PARM_DECL"))) parm_decl;
1877 struct tree_decl_with_vis GTY ((tag ("TS_DECL_WITH_VIS"))) decl_with_vis;
1878 struct tree_var_decl GTY ((tag ("TS_VAR_DECL"))) var_decl;
1879 struct tree_field_decl GTY ((tag ("TS_FIELD_DECL"))) field_decl;
1880 struct tree_label_decl GTY ((tag ("TS_LABEL_DECL"))) label_decl;
1881 struct tree_result_decl GTY ((tag ("TS_RESULT_DECL"))) result_decl;
1882 struct tree_const_decl GTY ((tag ("TS_CONST_DECL"))) const_decl;
1883 struct tree_type_decl GTY ((tag ("TS_TYPE_DECL"))) type_decl;
1884 struct tree_function_decl GTY ((tag ("TS_FUNCTION_DECL"))) function_decl;
1885 struct tree_translation_unit_decl GTY ((tag ("TS_TRANSLATION_UNIT_DECL")))
1886 translation_unit_decl;
1887 struct tree_type_common GTY ((tag ("TS_TYPE_COMMON"))) type_common;
1888 struct tree_type_with_lang_specific GTY ((tag ("TS_TYPE_WITH_LANG_SPECIFIC")))
1889 type_with_lang_specific;
1890 struct tree_type_non_common GTY ((tag ("TS_TYPE_NON_COMMON")))
1891 type_non_common;
1892 struct tree_list GTY ((tag ("TS_LIST"))) list;
1893 struct tree_vec GTY ((tag ("TS_VEC"))) vec;
1894 struct tree_exp GTY ((tag ("TS_EXP"))) exp;
1895 struct tree_ssa_name GTY ((tag ("TS_SSA_NAME"))) ssa_name;
1896 struct tree_block GTY ((tag ("TS_BLOCK"))) block;
1897 struct tree_binfo GTY ((tag ("TS_BINFO"))) binfo;
1898 struct tree_statement_list GTY ((tag ("TS_STATEMENT_LIST"))) stmt_list;
1899 struct tree_constructor GTY ((tag ("TS_CONSTRUCTOR"))) constructor;
1900 struct tree_omp_clause GTY ((tag ("TS_OMP_CLAUSE"))) omp_clause;
1901 struct tree_optimization_option GTY ((tag ("TS_OPTIMIZATION"))) optimization;
1902 struct tree_target_option GTY ((tag ("TS_TARGET_OPTION"))) target_option;
1905 /* Structure describing an attribute and a function to handle it. */
1906 struct attribute_spec {
1907 /* The name of the attribute (without any leading or trailing __),
1908 or NULL to mark the end of a table of attributes. */
1909 const char *name;
1910 /* The minimum length of the list of arguments of the attribute. */
1911 int min_length;
1912 /* The maximum length of the list of arguments of the attribute
1913 (-1 for no maximum). */
1914 int max_length;
1915 /* Whether this attribute requires a DECL. If it does, it will be passed
1916 from types of DECLs, function return types and array element types to
1917 the DECLs, function types and array types respectively; but when
1918 applied to a type in any other circumstances, it will be ignored with
1919 a warning. (If greater control is desired for a given attribute,
1920 this should be false, and the flags argument to the handler may be
1921 used to gain greater control in that case.) */
1922 bool decl_required;
1923 /* Whether this attribute requires a type. If it does, it will be passed
1924 from a DECL to the type of that DECL. */
1925 bool type_required;
1926 /* Whether this attribute requires a function (or method) type. If it does,
1927 it will be passed from a function pointer type to the target type,
1928 and from a function return type (which is not itself a function
1929 pointer type) to the function type. */
1930 bool function_type_required;
1931 /* Specifies if attribute affects type's identity. */
1932 bool affects_type_identity;
1933 /* Function to handle this attribute. NODE points to the node to which
1934 the attribute is to be applied. If a DECL, it should be modified in
1935 place; if a TYPE, a copy should be created. NAME is the canonicalized
1936 name of the attribute i.e. without any leading or trailing underscores.
1937 ARGS is the TREE_LIST of the arguments (which may be NULL). FLAGS gives
1938 further information about the context of the attribute. Afterwards, the
1939 attributes will be added to the DECL_ATTRIBUTES or TYPE_ATTRIBUTES, as
1940 appropriate, unless *NO_ADD_ATTRS is set to true (which should be done on
1941 error, as well as in any other cases when the attributes should not be
1942 added to the DECL or TYPE). Depending on FLAGS, any attributes to be
1943 applied to another type or DECL later may be returned;
1944 otherwise the return value should be NULL_TREE. This pointer may be
1945 NULL if no special handling is required beyond the checks implied
1946 by the rest of this structure. */
1947 tree (*handler) (tree *node, tree name, tree args,
1948 int flags, bool *no_add_attrs);
1950 /* Specifies the name of an attribute that's mutually exclusive with
1951 this one, and whether the relationship applies to the function,
1952 variable, or type form of the attribute. */
1953 struct exclusions {
1954 const char *name;
1955 bool function;
1956 bool variable;
1957 bool type;
1960 /* An array of attribute exclusions describing names of other attributes
1961 that this attribute is mutually exclusive with. */
1962 const exclusions *exclude;
1965 /* These functions allow a front-end to perform a manual layout of a
1966 RECORD_TYPE. (For instance, if the placement of subsequent fields
1967 depends on the placement of fields so far.) Begin by calling
1968 start_record_layout. Then, call place_field for each of the
1969 fields. Then, call finish_record_layout. See layout_type for the
1970 default way in which these functions are used. */
1971 typedef struct record_layout_info_s {
1972 /* The RECORD_TYPE that we are laying out. */
1973 tree t;
1974 /* The offset into the record so far, in bytes, not including bits in
1975 BITPOS. */
1976 tree offset;
1977 /* The last known alignment of SIZE. */
1978 unsigned int offset_align;
1979 /* The bit position within the last OFFSET_ALIGN bits, in bits. */
1980 tree bitpos;
1981 /* The alignment of the record so far, in bits. */
1982 unsigned int record_align;
1983 /* The alignment of the record so far, ignoring #pragma pack and
1984 __attribute__ ((packed)), in bits. */
1985 unsigned int unpacked_align;
1986 /* The previous field laid out. */
1987 tree prev_field;
1988 /* The static variables (i.e., class variables, as opposed to
1989 instance variables) encountered in T. */
1990 vec<tree, va_gc> *pending_statics;
1991 /* Bits remaining in the current alignment group */
1992 int remaining_in_alignment;
1993 /* True if we've seen a packed field that didn't have normal
1994 alignment anyway. */
1995 int packed_maybe_necessary;
1996 } *record_layout_info;
1998 /* Iterator for going through the function arguments. */
1999 struct function_args_iterator {
2000 tree next; /* TREE_LIST pointing to the next argument */
2003 /* Structures to map from a tree to another tree. */
2004 struct GTY(()) tree_map_base {
2005 tree from;
2008 /* Map from a tree to another tree. */
2010 struct GTY((for_user)) tree_map {
2011 struct tree_map_base base;
2012 unsigned int hash;
2013 tree to;
2016 /* Map from a decl tree to another tree. */
2017 struct GTY((for_user)) tree_decl_map {
2018 struct tree_map_base base;
2019 tree to;
2022 /* Map from a tree to an int. */
2023 struct GTY((for_user)) tree_int_map {
2024 struct tree_map_base base;
2025 unsigned int to;
2028 /* Map from a decl tree to a tree vector. */
2029 struct GTY((for_user)) tree_vec_map {
2030 struct tree_map_base base;
2031 vec<tree, va_gc> *to;
2034 /* Abstract iterators for CALL_EXPRs. These static inline definitions
2035 have to go towards the end of tree.h so that union tree_node is fully
2036 defined by this point. */
2038 /* Structure containing iterator state. */
2039 struct call_expr_arg_iterator {
2040 tree t; /* the call_expr */
2041 int n; /* argument count */
2042 int i; /* next argument index */
2045 struct const_call_expr_arg_iterator {
2046 const_tree t; /* the call_expr */
2047 int n; /* argument count */
2048 int i; /* next argument index */
2051 /* The builtin_info structure holds the FUNCTION_DECL of the standard builtin
2052 function, and flags. */
2053 struct GTY(()) builtin_info_type {
2054 tree decl;
2055 /* Whether the user can use <xxx> instead of explicitly using calls
2056 to __builtin_<xxx>. */
2057 unsigned implicit_p : 1;
2058 /* Whether the user has provided a declaration of <xxx>. */
2059 unsigned declared_p : 1;
2062 /* Information about a _FloatN or _FloatNx type that may be
2063 supported. */
2064 struct floatn_type_info {
2065 /* The number N in the type name. */
2066 int n;
2067 /* Whether it is an extended type _FloatNx (true) or an interchange
2068 type (false). */
2069 bool extended;
2073 /*---------------------------------------------------------------------------
2074 Global variables
2075 ---------------------------------------------------------------------------*/
2076 /* Matrix describing the structures contained in a given tree code. */
2077 extern bool tree_contains_struct[MAX_TREE_CODES][64];
2079 /* Class of tree given its code. */
2080 extern const enum tree_code_class tree_code_type[];
2082 /* Each tree code class has an associated string representation.
2083 These must correspond to the tree_code_class entries. */
2084 extern const char *const tree_code_class_strings[];
2086 /* Number of argument-words in each kind of tree-node. */
2087 extern const unsigned char tree_code_length[];
2089 /* Vector of all alias pairs for global symbols. */
2090 extern GTY(()) vec<alias_pair, va_gc> *alias_pairs;
2092 /* Names of all the built_in classes. */
2093 extern const char *const built_in_class_names[BUILT_IN_LAST];
2095 /* Names of all the built_in functions. */
2096 extern const char * built_in_names[(int) END_BUILTINS];
2098 /* Number of operands and names for each OMP_CLAUSE node. */
2099 extern unsigned const char omp_clause_num_ops[];
2100 extern const char * const omp_clause_code_name[];
2102 /* A vector of all translation-units. */
2103 extern GTY (()) vec<tree, va_gc> *all_translation_units;
2105 /* Vector of standard trees used by the C compiler. */
2106 extern GTY(()) tree global_trees[TI_MAX];
2108 /* The standard C integer types. Use integer_type_kind to index into
2109 this array. */
2110 extern GTY(()) tree integer_types[itk_none];
2112 /* Types used to represent sizes. */
2113 extern GTY(()) tree sizetype_tab[(int) stk_type_kind_last];
2115 /* Arrays for keeping track of tree node statistics. */
2116 extern uint64_t tree_node_counts[];
2117 extern uint64_t tree_node_sizes[];
2119 /* True if we are in gimple form and the actions of the folders need to
2120 be restricted. False if we are not in gimple form and folding is not
2121 restricted to creating gimple expressions. */
2122 extern bool in_gimple_form;
2124 /* Functional interface to the builtin functions. */
2125 extern GTY(()) builtin_info_type builtin_info[(int)END_BUILTINS];
2127 /* If nonzero, an upper limit on alignment of structure fields, in bits, */
2128 extern unsigned int maximum_field_alignment;
2130 /* Points to the FUNCTION_DECL of the function whose body we are reading. */
2131 extern GTY(()) tree current_function_decl;
2133 /* Nonzero means a FUNC_BEGIN label was emitted. */
2134 extern GTY(()) const char * current_function_func_begin_label;
2136 /* Information about the _FloatN and _FloatNx types. */
2137 extern const floatn_type_info floatn_nx_types[NUM_FLOATN_NX_TYPES];
2139 #endif // GCC_TREE_CORE_H