1 /* Front-end tree definitions for GNU compiler.
2 Copyright (C) 1989, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
4 Free Software Foundation, Inc.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
28 #include "statistics.h"
31 #include "double-int.h"
33 #include "fixed-value.h"
37 /* Codes of tree nodes */
39 #define DEFTREECODE(SYM, STRING, TYPE, NARGS) SYM,
40 #define END_OF_BASE_TREE_CODES LAST_AND_UNUSED_TREE_CODE,
43 #include "all-tree.def"
48 #undef END_OF_BASE_TREE_CODES
50 extern unsigned char tree_contains_struct[MAX_TREE_CODES][64];
51 #define CODE_CONTAINS_STRUCT(CODE, STRUCT) (tree_contains_struct[(CODE)][(STRUCT)])
53 /* Macros for initializing `tree_contains_struct'. */
54 #define MARK_TS_BASE(C) \
56 tree_contains_struct[C][TS_BASE] = 1; \
59 #define MARK_TS_TYPED(C) \
62 tree_contains_struct[C][TS_TYPED] = 1; \
65 #define MARK_TS_COMMON(C) \
68 tree_contains_struct[C][TS_COMMON] = 1; \
71 #define MARK_TS_TYPE_COMMON(C) \
74 tree_contains_struct[C][TS_TYPE_COMMON] = 1; \
77 #define MARK_TS_TYPE_WITH_LANG_SPECIFIC(C) \
79 MARK_TS_TYPE_COMMON (C); \
80 tree_contains_struct[C][TS_TYPE_WITH_LANG_SPECIFIC] = 1; \
83 #define MARK_TS_DECL_MINIMAL(C) \
86 tree_contains_struct[C][TS_DECL_MINIMAL] = 1; \
89 #define MARK_TS_DECL_COMMON(C) \
91 MARK_TS_DECL_MINIMAL (C); \
92 tree_contains_struct[C][TS_DECL_COMMON] = 1; \
95 #define MARK_TS_DECL_WRTL(C) \
97 MARK_TS_DECL_COMMON (C); \
98 tree_contains_struct[C][TS_DECL_WRTL] = 1; \
101 #define MARK_TS_DECL_WITH_VIS(C) \
103 MARK_TS_DECL_WRTL (C); \
104 tree_contains_struct[C][TS_DECL_WITH_VIS] = 1; \
107 #define MARK_TS_DECL_NON_COMMON(C) \
109 MARK_TS_DECL_WITH_VIS (C); \
110 tree_contains_struct[C][TS_DECL_NON_COMMON] = 1; \
113 /* Number of language-independent tree codes. */
114 #define NUM_TREE_CODES ((int) LAST_AND_UNUSED_TREE_CODE)
116 /* Tree code classes. */
118 /* Each tree_code has an associated code class represented by a
121 enum tree_code_class {
122 tcc_exceptional, /* An exceptional code (fits no category). */
123 tcc_constant, /* A constant. */
124 /* Order of tcc_type and tcc_declaration is important. */
125 tcc_type, /* A type object code. */
126 tcc_declaration, /* A declaration (also serving as variable refs). */
127 tcc_reference, /* A reference to storage. */
128 tcc_comparison, /* A comparison expression. */
129 tcc_unary, /* A unary arithmetic expression. */
130 tcc_binary, /* A binary arithmetic expression. */
131 tcc_statement, /* A statement expression, which have side effects
132 but usually no interesting value. */
133 tcc_vl_exp, /* A function call or other expression with a
134 variable-length operand vector. */
135 tcc_expression /* Any other expression. */
138 /* Each tree code class has an associated string representation.
139 These must correspond to the tree_code_class entries. */
141 extern const char *const tree_code_class_strings[];
143 /* Returns the string representing CLASS. */
145 #define TREE_CODE_CLASS_STRING(CLASS)\
146 tree_code_class_strings[(int) (CLASS)]
148 extern const enum tree_code_class tree_code_type[];
149 #define TREE_CODE_CLASS(CODE) tree_code_type[(int) (CODE)]
151 /* Nonzero if CODE represents an exceptional code. */
153 #define EXCEPTIONAL_CLASS_P(CODE)\
154 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_exceptional)
156 /* Nonzero if CODE represents a constant. */
158 #define CONSTANT_CLASS_P(CODE)\
159 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_constant)
161 /* Nonzero if CODE represents a type. */
163 #define TYPE_P(CODE)\
164 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_type)
166 /* Nonzero if CODE represents a declaration. */
168 #define DECL_P(CODE)\
169 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_declaration)
171 /* Nonzero if DECL represents a VAR_DECL or FUNCTION_DECL. */
173 #define VAR_OR_FUNCTION_DECL_P(DECL)\
174 (TREE_CODE (DECL) == VAR_DECL || TREE_CODE (DECL) == FUNCTION_DECL)
176 /* Nonzero if CODE represents a INDIRECT_REF. Keep these checks in
177 ascending code order. */
179 #define INDIRECT_REF_P(CODE)\
180 (TREE_CODE (CODE) == INDIRECT_REF)
182 /* Nonzero if CODE represents a reference. */
184 #define REFERENCE_CLASS_P(CODE)\
185 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_reference)
187 /* Nonzero if CODE represents a comparison. */
189 #define COMPARISON_CLASS_P(CODE)\
190 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_comparison)
192 /* Nonzero if CODE represents a unary arithmetic expression. */
194 #define UNARY_CLASS_P(CODE)\
195 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_unary)
197 /* Nonzero if CODE represents a binary arithmetic expression. */
199 #define BINARY_CLASS_P(CODE)\
200 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_binary)
202 /* Nonzero if CODE represents a statement expression. */
204 #define STATEMENT_CLASS_P(CODE)\
205 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_statement)
207 /* Nonzero if CODE represents a function call-like expression with a
208 variable-length operand vector. */
210 #define VL_EXP_CLASS_P(CODE)\
211 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_vl_exp)
213 /* Nonzero if CODE represents any other expression. */
215 #define EXPRESSION_CLASS_P(CODE)\
216 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_expression)
218 /* Returns nonzero iff CODE represents a type or declaration. */
220 #define IS_TYPE_OR_DECL_P(CODE)\
221 (TYPE_P (CODE) || DECL_P (CODE))
223 /* Returns nonzero iff CLASS is the tree-code class of an
226 #define IS_EXPR_CODE_CLASS(CLASS)\
227 ((CLASS) >= tcc_reference && (CLASS) <= tcc_expression)
229 /* Returns nonzero iff NODE is an expression of some kind. */
231 #define EXPR_P(NODE) IS_EXPR_CODE_CLASS (TREE_CODE_CLASS (TREE_CODE (NODE)))
233 /* Number of argument-words in each kind of tree-node. */
235 extern const unsigned char tree_code_length[];
236 #define TREE_CODE_LENGTH(CODE) tree_code_length[(int) (CODE)]
238 /* Names of tree components. */
240 extern const char *const tree_code_name[];
242 /* We have to be able to tell cgraph about the needed-ness of the target
243 of an alias. This requires that the decl have been defined. Aliases
244 that precede their definition have to be queued for later processing. */
246 /* The deferred processing proceeds in several passes. We memorize the
247 diagnostics emitted for a pair to prevent repeating messages when the
248 queue gets re-scanned after possible updates. */
251 ALIAS_DIAG_NONE = 0x0,
252 ALIAS_DIAG_TO_UNDEF = 0x1,
253 ALIAS_DIAG_TO_EXTERN = 0x2
256 typedef struct GTY(()) alias_pair
260 int emitted_diags; /* alias_diags already emitted for this pair. */
263 /* Define gc'd vector type. */
264 DEF_VEC_O(alias_pair);
265 DEF_VEC_ALLOC_O(alias_pair,gc);
267 extern GTY(()) VEC(alias_pair,gc) * alias_pairs;
270 /* Classify which part of the compiler has defined a given builtin function.
271 Note that we assume below that this is no more than two bits. */
280 /* Last marker used for LTO stremaing of built_in_class. We can not add it
281 to the enum since we need the enumb to fit in 2 bits. */
282 #define BUILT_IN_LAST (BUILT_IN_NORMAL + 1)
284 /* Names for the above. */
285 extern const char *const built_in_class_names[4];
287 /* Codes that identify the various built in functions
288 so that expand_call can identify them quickly. */
290 #define DEF_BUILTIN(ENUM, N, C, T, LT, B, F, NA, AT, IM, COND) ENUM,
291 enum built_in_function
293 #include "builtins.def"
295 /* Complex division routines in libgcc. These are done via builtins
296 because emit_library_call_value can't handle complex values. */
297 BUILT_IN_COMPLEX_MUL_MIN,
298 BUILT_IN_COMPLEX_MUL_MAX
299 = BUILT_IN_COMPLEX_MUL_MIN
300 + MAX_MODE_COMPLEX_FLOAT
301 - MIN_MODE_COMPLEX_FLOAT,
303 BUILT_IN_COMPLEX_DIV_MIN,
304 BUILT_IN_COMPLEX_DIV_MAX
305 = BUILT_IN_COMPLEX_DIV_MIN
306 + MAX_MODE_COMPLEX_FLOAT
307 - MIN_MODE_COMPLEX_FLOAT,
309 /* Upper bound on non-language-specific builtins. */
314 /* Names for the above. */
315 extern const char * built_in_names[(int) END_BUILTINS];
317 /* Helper macros for math builtins. */
319 #define BUILTIN_EXP10_P(FN) \
320 ((FN) == BUILT_IN_EXP10 || (FN) == BUILT_IN_EXP10F || (FN) == BUILT_IN_EXP10L \
321 || (FN) == BUILT_IN_POW10 || (FN) == BUILT_IN_POW10F || (FN) == BUILT_IN_POW10L)
323 #define BUILTIN_EXPONENT_P(FN) (BUILTIN_EXP10_P (FN) \
324 || (FN) == BUILT_IN_EXP || (FN) == BUILT_IN_EXPF || (FN) == BUILT_IN_EXPL \
325 || (FN) == BUILT_IN_EXP2 || (FN) == BUILT_IN_EXP2F || (FN) == BUILT_IN_EXP2L)
327 #define BUILTIN_SQRT_P(FN) \
328 ((FN) == BUILT_IN_SQRT || (FN) == BUILT_IN_SQRTF || (FN) == BUILT_IN_SQRTL)
330 #define BUILTIN_CBRT_P(FN) \
331 ((FN) == BUILT_IN_CBRT || (FN) == BUILT_IN_CBRTF || (FN) == BUILT_IN_CBRTL)
333 #define BUILTIN_ROOT_P(FN) (BUILTIN_SQRT_P (FN) || BUILTIN_CBRT_P (FN))
335 #define CASE_FLT_FN(FN) case FN: case FN##F: case FN##L
336 #define CASE_FLT_FN_REENT(FN) case FN##_R: case FN##F_R: case FN##L_R
337 #define CASE_INT_FN(FN) case FN: case FN##L: case FN##LL
339 /* In an OMP_CLAUSE node. */
341 /* Number of operands and names for each clause. */
342 extern unsigned const char omp_clause_num_ops[];
343 extern const char * const omp_clause_code_name[];
345 /* Clause codes. Do not reorder, as this is used to index into the tables
346 omp_clause_num_ops and omp_clause_code_name. */
349 /* Clause zero is special-cased inside the parser
350 (c_parser_omp_variable_list). */
351 OMP_CLAUSE_ERROR = 0,
353 /* OpenMP clause: private (variable_list). */
356 /* OpenMP clause: shared (variable_list). */
359 /* OpenMP clause: firstprivate (variable_list). */
360 OMP_CLAUSE_FIRSTPRIVATE,
362 /* OpenMP clause: lastprivate (variable_list). */
363 OMP_CLAUSE_LASTPRIVATE,
365 /* OpenMP clause: reduction (operator:variable_list).
366 OMP_CLAUSE_REDUCTION_CODE: The tree_code of the operator.
367 Operand 1: OMP_CLAUSE_REDUCTION_INIT: Stmt-list to initialize the var.
368 Operand 2: OMP_CLAUSE_REDUCTION_MERGE: Stmt-list to merge private var
370 Operand 3: OMP_CLAUSE_REDUCTION_PLACEHOLDER: A dummy VAR_DECL
371 placeholder used in OMP_CLAUSE_REDUCTION_{INIT,MERGE}. */
372 OMP_CLAUSE_REDUCTION,
374 /* OpenMP clause: copyin (variable_list). */
377 /* OpenMP clause: copyprivate (variable_list). */
378 OMP_CLAUSE_COPYPRIVATE,
380 /* OpenMP clause: if (scalar-expression). */
383 /* OpenMP clause: num_threads (integer-expression). */
384 OMP_CLAUSE_NUM_THREADS,
386 /* OpenMP clause: schedule. */
389 /* OpenMP clause: nowait. */
392 /* OpenMP clause: ordered. */
395 /* OpenMP clause: default. */
398 /* OpenMP clause: collapse (constant-integer-expression). */
401 /* OpenMP clause: untied. */
404 /* OpenMP clause: final (scalar-expression). */
407 /* OpenMP clause: mergeable. */
411 /* The definition of tree nodes fills the next several pages. */
413 /* A tree node can represent a data type, a variable, an expression
414 or a statement. Each node has a TREE_CODE which says what kind of
415 thing it represents. Some common codes are:
416 INTEGER_TYPE -- represents a type of integers.
417 ARRAY_TYPE -- represents a type of pointer.
418 VAR_DECL -- represents a declared variable.
419 INTEGER_CST -- represents a constant integer value.
420 PLUS_EXPR -- represents a sum (an expression).
422 As for the contents of a tree node: there are some fields
423 that all nodes share. Each TREE_CODE has various special-purpose
424 fields as well. The fields of a node are never accessed directly,
425 always through accessor macros. */
427 /* Every kind of tree node starts with this structure,
428 so all nodes have these fields.
430 See the accessor macros, defined below, for documentation of the
433 struct GTY(()) tree_base {
434 ENUM_BITFIELD(tree_code) code : 16;
436 unsigned side_effects_flag : 1;
437 unsigned constant_flag : 1;
438 unsigned addressable_flag : 1;
439 unsigned volatile_flag : 1;
440 unsigned readonly_flag : 1;
441 unsigned unsigned_flag : 1;
442 unsigned asm_written_flag: 1;
443 unsigned nowarning_flag : 1;
445 unsigned used_flag : 1;
446 unsigned nothrow_flag : 1;
447 unsigned static_flag : 1;
448 unsigned public_flag : 1;
449 unsigned private_flag : 1;
450 unsigned protected_flag : 1;
451 unsigned deprecated_flag : 1;
452 unsigned saturating_flag : 1;
454 unsigned default_def_flag : 1;
455 unsigned lang_flag_0 : 1;
456 unsigned lang_flag_1 : 1;
457 unsigned lang_flag_2 : 1;
458 unsigned lang_flag_3 : 1;
459 unsigned lang_flag_4 : 1;
460 unsigned lang_flag_5 : 1;
461 unsigned lang_flag_6 : 1;
463 unsigned visited : 1;
464 unsigned packed_flag : 1;
465 unsigned user_align : 1;
466 unsigned nameless_flag : 1;
470 /* This field is only used with type nodes; the only reason it is present
471 in tree_base instead of tree_type is to save space. The size of the
472 field must be large enough to hold addr_space_t values. */
473 unsigned address_space : 8;
476 struct GTY(()) tree_typed {
477 struct tree_base base;
481 struct GTY(()) tree_common {
482 struct tree_typed typed;
486 /* The following table lists the uses of each of the above flags and
487 for which types of nodes they are defined.
492 VAR_DECL, PARM_DECL, RESULT_DECL, FUNCTION_DECL, LABEL_DECL
494 CONSTRUCTOR, IDENTIFIER_NODE
495 STMT_EXPR, it means we want the result of the enclosed expression
497 CALL_EXPR_TAILCALL in
506 VAR_DECL, FUNCTION_DECL
509 TREE_NO_TRAMPOLINE in
515 TREE_SYMBOL_REFERENCED in
519 TARGET_EXPR, WITH_CLEANUP_EXPR
521 TRY_CATCH_IS_CLEANUP in
527 TYPE_REF_CAN_ALIAS_ALL in
528 POINTER_TYPE, REFERENCE_TYPE
539 TRANSACTION_EXPR_OUTER in
545 INTEGER_CST, REAL_CST, COMPLEX_CST, VECTOR_CST
548 VAR_DECL, FUNCTION_DECL
554 CALL_EXPR_VA_ARG_PACK in
557 TYPE_CACHED_VALUES_P in
560 SAVE_EXPR_RESOLVED_P in
563 OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE in
564 OMP_CLAUSE_LASTPRIVATE
566 OMP_CLAUSE_PRIVATE_DEBUG in
569 TRANSACTION_EXPR_RELAXED in
577 CALL_EXPR_RETURN_SLOT_OPT in
583 OMP_PARALLEL_COMBINED in
585 OMP_CLAUSE_PRIVATE_OUTER_REF in
588 TYPE_REF_IS_RVALUE in
597 CALL_FROM_THUNK_P and
598 CALL_ALLOCA_FOR_VAR_P in
613 TREE_THIS_VOLATILE in
636 TYPE_SIZES_GIMPLIFIED in
650 VAR_DECL, FUNCTION_DECL, TYPE_DECL
651 RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE
652 BLOCK, SSA_NAME, STRING_CST
671 INDIRECT_REF, MEM_REF, TARGET_MEM_REF, ARRAY_REF, ARRAY_RANGE_REF
679 IDENTIFIER_TRANSPARENT_ALIAS in
685 all trees (used liberally by many passes)
703 TYPE_VECTOR_OPAQUE in
706 SSA_NAME_IS_DEFAULT_DEF in
711 #define DEFTREESTRUCT(ENUM, NAME) ENUM,
712 enum tree_node_structure_enum {
713 #include "treestruct.def"
718 /* Define accessors for the fields that all tree nodes have
719 (though some fields are not used for all kinds of nodes). */
721 /* The tree-code says what kind of node it is.
722 Codes are defined in tree.def. */
723 #define TREE_CODE(NODE) ((enum tree_code) (NODE)->base.code)
724 #define TREE_SET_CODE(NODE, VALUE) ((NODE)->base.code = (VALUE))
726 /* When checking is enabled, errors will be generated if a tree node
727 is accessed incorrectly. The macros die with a fatal error. */
728 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
730 #define TREE_CHECK(T, CODE) __extension__ \
731 ({ __typeof (T) const __t = (T); \
732 if (TREE_CODE (__t) != (CODE)) \
733 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
737 #define TREE_NOT_CHECK(T, CODE) __extension__ \
738 ({ __typeof (T) const __t = (T); \
739 if (TREE_CODE (__t) == (CODE)) \
740 tree_not_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
744 #define TREE_CHECK2(T, CODE1, CODE2) __extension__ \
745 ({ __typeof (T) const __t = (T); \
746 if (TREE_CODE (__t) != (CODE1) \
747 && TREE_CODE (__t) != (CODE2)) \
748 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
749 (CODE1), (CODE2), 0); \
752 #define TREE_NOT_CHECK2(T, CODE1, CODE2) __extension__ \
753 ({ __typeof (T) const __t = (T); \
754 if (TREE_CODE (__t) == (CODE1) \
755 || TREE_CODE (__t) == (CODE2)) \
756 tree_not_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
757 (CODE1), (CODE2), 0); \
760 #define TREE_CHECK3(T, CODE1, CODE2, CODE3) __extension__ \
761 ({ __typeof (T) const __t = (T); \
762 if (TREE_CODE (__t) != (CODE1) \
763 && TREE_CODE (__t) != (CODE2) \
764 && TREE_CODE (__t) != (CODE3)) \
765 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
766 (CODE1), (CODE2), (CODE3), 0); \
769 #define TREE_NOT_CHECK3(T, CODE1, CODE2, CODE3) __extension__ \
770 ({ __typeof (T) const __t = (T); \
771 if (TREE_CODE (__t) == (CODE1) \
772 || TREE_CODE (__t) == (CODE2) \
773 || TREE_CODE (__t) == (CODE3)) \
774 tree_not_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
775 (CODE1), (CODE2), (CODE3), 0); \
778 #define TREE_CHECK4(T, CODE1, CODE2, CODE3, CODE4) __extension__ \
779 ({ __typeof (T) const __t = (T); \
780 if (TREE_CODE (__t) != (CODE1) \
781 && TREE_CODE (__t) != (CODE2) \
782 && TREE_CODE (__t) != (CODE3) \
783 && TREE_CODE (__t) != (CODE4)) \
784 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
785 (CODE1), (CODE2), (CODE3), (CODE4), 0); \
788 #define TREE_NOT_CHECK4(T, CODE1, CODE2, CODE3, CODE4) __extension__ \
789 ({ __typeof (T) const __t = (T); \
790 if (TREE_CODE (__t) == (CODE1) \
791 || TREE_CODE (__t) == (CODE2) \
792 || TREE_CODE (__t) == (CODE3) \
793 || TREE_CODE (__t) == (CODE4)) \
794 tree_not_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
795 (CODE1), (CODE2), (CODE3), (CODE4), 0); \
798 #define TREE_CHECK5(T, CODE1, CODE2, CODE3, CODE4, CODE5) __extension__ \
799 ({ __typeof (T) const __t = (T); \
800 if (TREE_CODE (__t) != (CODE1) \
801 && TREE_CODE (__t) != (CODE2) \
802 && TREE_CODE (__t) != (CODE3) \
803 && TREE_CODE (__t) != (CODE4) \
804 && TREE_CODE (__t) != (CODE5)) \
805 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
806 (CODE1), (CODE2), (CODE3), (CODE4), (CODE5), 0);\
809 #define TREE_NOT_CHECK5(T, CODE1, CODE2, CODE3, CODE4, CODE5) __extension__ \
810 ({ __typeof (T) const __t = (T); \
811 if (TREE_CODE (__t) == (CODE1) \
812 || TREE_CODE (__t) == (CODE2) \
813 || TREE_CODE (__t) == (CODE3) \
814 || TREE_CODE (__t) == (CODE4) \
815 || TREE_CODE (__t) == (CODE5)) \
816 tree_not_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
817 (CODE1), (CODE2), (CODE3), (CODE4), (CODE5), 0);\
820 #define CONTAINS_STRUCT_CHECK(T, STRUCT) __extension__ \
821 ({ __typeof (T) const __t = (T); \
822 if (tree_contains_struct[TREE_CODE(__t)][(STRUCT)] != 1) \
823 tree_contains_struct_check_failed (__t, (STRUCT), __FILE__, __LINE__, \
827 #define TREE_CLASS_CHECK(T, CLASS) __extension__ \
828 ({ __typeof (T) const __t = (T); \
829 if (TREE_CODE_CLASS (TREE_CODE(__t)) != (CLASS)) \
830 tree_class_check_failed (__t, (CLASS), __FILE__, __LINE__, \
834 #define TREE_RANGE_CHECK(T, CODE1, CODE2) __extension__ \
835 ({ __typeof (T) const __t = (T); \
836 if (TREE_CODE (__t) < (CODE1) || TREE_CODE (__t) > (CODE2)) \
837 tree_range_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
841 #define OMP_CLAUSE_SUBCODE_CHECK(T, CODE) __extension__ \
842 ({ __typeof (T) const __t = (T); \
843 if (TREE_CODE (__t) != OMP_CLAUSE) \
844 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
846 if (__t->omp_clause.code != (CODE)) \
847 omp_clause_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
851 #define OMP_CLAUSE_RANGE_CHECK(T, CODE1, CODE2) __extension__ \
852 ({ __typeof (T) const __t = (T); \
853 if (TREE_CODE (__t) != OMP_CLAUSE) \
854 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
856 if ((int) __t->omp_clause.code < (int) (CODE1) \
857 || (int) __t->omp_clause.code > (int) (CODE2)) \
858 omp_clause_range_check_failed (__t, __FILE__, __LINE__, \
859 __FUNCTION__, (CODE1), (CODE2)); \
862 /* These checks have to be special cased. */
863 #define EXPR_CHECK(T) __extension__ \
864 ({ __typeof (T) const __t = (T); \
865 char const __c = TREE_CODE_CLASS (TREE_CODE (__t)); \
866 if (!IS_EXPR_CODE_CLASS (__c)) \
867 tree_class_check_failed (__t, tcc_expression, __FILE__, __LINE__, \
871 /* These checks have to be special cased. */
872 #define NON_TYPE_CHECK(T) __extension__ \
873 ({ __typeof (T) const __t = (T); \
875 tree_not_class_check_failed (__t, tcc_type, __FILE__, __LINE__, \
879 #define TREE_VEC_ELT_CHECK(T, I) __extension__ \
880 (*({__typeof (T) const __t = (T); \
881 const int __i = (I); \
882 if (TREE_CODE (__t) != TREE_VEC) \
883 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
885 if (__i < 0 || __i >= __t->vec.length) \
886 tree_vec_elt_check_failed (__i, __t->vec.length, \
887 __FILE__, __LINE__, __FUNCTION__); \
888 &__t->vec.a[__i]; }))
890 #define OMP_CLAUSE_ELT_CHECK(T, I) __extension__ \
891 (*({__typeof (T) const __t = (T); \
892 const int __i = (I); \
893 if (TREE_CODE (__t) != OMP_CLAUSE) \
894 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
896 if (__i < 0 || __i >= omp_clause_num_ops [__t->omp_clause.code]) \
897 omp_clause_operand_check_failed (__i, __t, __FILE__, __LINE__, \
899 &__t->omp_clause.ops[__i]; }))
901 /* Special checks for TREE_OPERANDs. */
902 #define TREE_OPERAND_CHECK(T, I) __extension__ \
903 (*({__typeof (T) const __t = EXPR_CHECK (T); \
904 const int __i = (I); \
905 if (__i < 0 || __i >= TREE_OPERAND_LENGTH (__t)) \
906 tree_operand_check_failed (__i, __t, \
907 __FILE__, __LINE__, __FUNCTION__); \
908 &__t->exp.operands[__i]; }))
910 #define TREE_OPERAND_CHECK_CODE(T, CODE, I) __extension__ \
911 (*({__typeof (T) const __t = (T); \
912 const int __i = (I); \
913 if (TREE_CODE (__t) != CODE) \
914 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, (CODE), 0);\
915 if (__i < 0 || __i >= TREE_OPERAND_LENGTH (__t)) \
916 tree_operand_check_failed (__i, __t, \
917 __FILE__, __LINE__, __FUNCTION__); \
918 &__t->exp.operands[__i]; }))
920 /* Nodes are chained together for many purposes.
921 Types are chained together to record them for being output to the debugger
922 (see the function `chain_type').
923 Decls in the same scope are chained together to record the contents
925 Statement nodes for successive statements used to be chained together.
926 Often lists of things are represented by TREE_LIST nodes that
927 are chained together. */
929 #define TREE_CHAIN(NODE) __extension__ \
930 (*({__typeof (NODE) const __t = CONTAINS_STRUCT_CHECK (NODE, TS_COMMON);\
931 &__t->common.chain; }))
933 /* In all nodes that are expressions, this is the data type of the expression.
934 In POINTER_TYPE nodes, this is the type that the pointer points to.
935 In ARRAY_TYPE nodes, this is the type of the elements.
936 In VECTOR_TYPE nodes, this is the type of the elements. */
937 #define TREE_TYPE(NODE) __extension__ \
938 (*({__typeof (NODE) const __t = CONTAINS_STRUCT_CHECK (NODE, TS_TYPED); \
939 &__t->typed.type; }))
941 extern void tree_contains_struct_check_failed (const_tree,
942 const enum tree_node_structure_enum,
943 const char *, int, const char *)
946 extern void tree_check_failed (const_tree, const char *, int, const char *,
947 ...) ATTRIBUTE_NORETURN;
948 extern void tree_not_check_failed (const_tree, const char *, int, const char *,
949 ...) ATTRIBUTE_NORETURN;
950 extern void tree_class_check_failed (const_tree, const enum tree_code_class,
951 const char *, int, const char *)
953 extern void tree_range_check_failed (const_tree, const char *, int,
954 const char *, enum tree_code,
957 extern void tree_not_class_check_failed (const_tree,
958 const enum tree_code_class,
959 const char *, int, const char *)
961 extern void tree_vec_elt_check_failed (int, int, const char *,
964 extern void phi_node_elt_check_failed (int, int, const char *,
967 extern void tree_operand_check_failed (int, const_tree,
968 const char *, int, const char *)
970 extern void omp_clause_check_failed (const_tree, const char *, int,
971 const char *, enum omp_clause_code)
973 extern void omp_clause_operand_check_failed (int, const_tree, const char *,
976 extern void omp_clause_range_check_failed (const_tree, const char *, int,
977 const char *, enum omp_clause_code,
978 enum omp_clause_code)
981 #else /* not ENABLE_TREE_CHECKING, or not gcc */
983 #define CONTAINS_STRUCT_CHECK(T, ENUM) (T)
984 #define TREE_CHECK(T, CODE) (T)
985 #define TREE_NOT_CHECK(T, CODE) (T)
986 #define TREE_CHECK2(T, CODE1, CODE2) (T)
987 #define TREE_NOT_CHECK2(T, CODE1, CODE2) (T)
988 #define TREE_CHECK3(T, CODE1, CODE2, CODE3) (T)
989 #define TREE_NOT_CHECK3(T, CODE1, CODE2, CODE3) (T)
990 #define TREE_CHECK4(T, CODE1, CODE2, CODE3, CODE4) (T)
991 #define TREE_NOT_CHECK4(T, CODE1, CODE2, CODE3, CODE4) (T)
992 #define TREE_CHECK5(T, CODE1, CODE2, CODE3, CODE4, CODE5) (T)
993 #define TREE_NOT_CHECK5(T, CODE1, CODE2, CODE3, CODE4, CODE5) (T)
994 #define TREE_CLASS_CHECK(T, CODE) (T)
995 #define TREE_RANGE_CHECK(T, CODE1, CODE2) (T)
996 #define EXPR_CHECK(T) (T)
997 #define NON_TYPE_CHECK(T) (T)
998 #define TREE_VEC_ELT_CHECK(T, I) ((T)->vec.a[I])
999 #define TREE_OPERAND_CHECK(T, I) ((T)->exp.operands[I])
1000 #define TREE_OPERAND_CHECK_CODE(T, CODE, I) ((T)->exp.operands[I])
1001 #define OMP_CLAUSE_ELT_CHECK(T, i) ((T)->omp_clause.ops[i])
1002 #define OMP_CLAUSE_RANGE_CHECK(T, CODE1, CODE2) (T)
1003 #define OMP_CLAUSE_SUBCODE_CHECK(T, CODE) (T)
1005 #define TREE_CHAIN(NODE) ((NODE)->common.chain)
1006 #define TREE_TYPE(NODE) ((NODE)->typed.type)
1010 #define TREE_BLOCK(NODE) *(tree_block (NODE))
1012 #include "tree-check.h"
1014 #define TYPE_CHECK(T) TREE_CLASS_CHECK (T, tcc_type)
1015 #define DECL_MINIMAL_CHECK(T) CONTAINS_STRUCT_CHECK (T, TS_DECL_MINIMAL)
1016 #define DECL_COMMON_CHECK(T) CONTAINS_STRUCT_CHECK (T, TS_DECL_COMMON)
1017 #define DECL_WRTL_CHECK(T) CONTAINS_STRUCT_CHECK (T, TS_DECL_WRTL)
1018 #define DECL_WITH_VIS_CHECK(T) CONTAINS_STRUCT_CHECK (T, TS_DECL_WITH_VIS)
1019 #define DECL_NON_COMMON_CHECK(T) CONTAINS_STRUCT_CHECK (T, TS_DECL_NON_COMMON)
1020 #define CST_CHECK(T) TREE_CLASS_CHECK (T, tcc_constant)
1021 #define STMT_CHECK(T) TREE_CLASS_CHECK (T, tcc_statement)
1022 #define VL_EXP_CHECK(T) TREE_CLASS_CHECK (T, tcc_vl_exp)
1023 #define FUNC_OR_METHOD_CHECK(T) TREE_CHECK2 (T, FUNCTION_TYPE, METHOD_TYPE)
1024 #define PTR_OR_REF_CHECK(T) TREE_CHECK2 (T, POINTER_TYPE, REFERENCE_TYPE)
1026 #define RECORD_OR_UNION_CHECK(T) \
1027 TREE_CHECK3 (T, RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE)
1028 #define NOT_RECORD_OR_UNION_CHECK(T) \
1029 TREE_NOT_CHECK3 (T, RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE)
1031 #define NUMERICAL_TYPE_CHECK(T) \
1032 TREE_CHECK5 (T, INTEGER_TYPE, ENUMERAL_TYPE, BOOLEAN_TYPE, REAL_TYPE, \
1035 /* Here is how primitive or already-canonicalized types' hash codes
1037 #define TYPE_HASH(TYPE) (TYPE_UID (TYPE))
1039 /* A simple hash function for an arbitrary tree node. This must not be
1040 used in hash tables which are saved to a PCH. */
1041 #define TREE_HASH(NODE) ((size_t) (NODE) & 0777777)
1043 /* Tests if CODE is a conversion expr (NOP_EXPR or CONVERT_EXPR). */
1044 #define CONVERT_EXPR_CODE_P(CODE) \
1045 ((CODE) == NOP_EXPR || (CODE) == CONVERT_EXPR)
1047 /* Similarly, but accept an expressions instead of a tree code. */
1048 #define CONVERT_EXPR_P(EXP) CONVERT_EXPR_CODE_P (TREE_CODE (EXP))
1050 /* Generate case for NOP_EXPR, CONVERT_EXPR. */
1052 #define CASE_CONVERT \
1056 /* Given an expression as a tree, strip any conversion that generates
1057 no instruction. Accepts both tree and const_tree arguments since
1058 we are not modifying the tree itself. */
1060 #define STRIP_NOPS(EXP) \
1061 (EXP) = tree_strip_nop_conversions (CONST_CAST_TREE (EXP))
1063 /* Like STRIP_NOPS, but don't let the signedness change either. */
1065 #define STRIP_SIGN_NOPS(EXP) \
1066 (EXP) = tree_strip_sign_nop_conversions (CONST_CAST_TREE (EXP))
1068 /* Like STRIP_NOPS, but don't alter the TREE_TYPE either. */
1070 #define STRIP_TYPE_NOPS(EXP) \
1071 while ((CONVERT_EXPR_P (EXP) \
1072 || TREE_CODE (EXP) == NON_LVALUE_EXPR) \
1073 && TREE_OPERAND (EXP, 0) != error_mark_node \
1074 && (TREE_TYPE (EXP) \
1075 == TREE_TYPE (TREE_OPERAND (EXP, 0)))) \
1076 (EXP) = TREE_OPERAND (EXP, 0)
1078 /* Remove unnecessary type conversions according to
1079 tree_ssa_useless_type_conversion. */
1081 #define STRIP_USELESS_TYPE_CONVERSION(EXP) \
1082 (EXP) = tree_ssa_strip_useless_type_conversions (EXP)
1084 /* Nonzero if TYPE represents an integral type. Note that we do not
1085 include COMPLEX types here. Keep these checks in ascending code
1088 #define INTEGRAL_TYPE_P(TYPE) \
1089 (TREE_CODE (TYPE) == ENUMERAL_TYPE \
1090 || TREE_CODE (TYPE) == BOOLEAN_TYPE \
1091 || TREE_CODE (TYPE) == INTEGER_TYPE)
1093 /* Nonzero if TYPE represents a non-saturating fixed-point type. */
1095 #define NON_SAT_FIXED_POINT_TYPE_P(TYPE) \
1096 (TREE_CODE (TYPE) == FIXED_POINT_TYPE && !TYPE_SATURATING (TYPE))
1098 /* Nonzero if TYPE represents a saturating fixed-point type. */
1100 #define SAT_FIXED_POINT_TYPE_P(TYPE) \
1101 (TREE_CODE (TYPE) == FIXED_POINT_TYPE && TYPE_SATURATING (TYPE))
1103 /* Nonzero if TYPE represents a fixed-point type. */
1105 #define FIXED_POINT_TYPE_P(TYPE) (TREE_CODE (TYPE) == FIXED_POINT_TYPE)
1107 /* Nonzero if TYPE represents a scalar floating-point type. */
1109 #define SCALAR_FLOAT_TYPE_P(TYPE) (TREE_CODE (TYPE) == REAL_TYPE)
1111 /* Nonzero if TYPE represents a complex floating-point type. */
1113 #define COMPLEX_FLOAT_TYPE_P(TYPE) \
1114 (TREE_CODE (TYPE) == COMPLEX_TYPE \
1115 && TREE_CODE (TREE_TYPE (TYPE)) == REAL_TYPE)
1117 /* Nonzero if TYPE represents a vector integer type. */
1119 #define VECTOR_INTEGER_TYPE_P(TYPE) \
1120 (TREE_CODE (TYPE) == VECTOR_TYPE \
1121 && TREE_CODE (TREE_TYPE (TYPE)) == INTEGER_TYPE)
1124 /* Nonzero if TYPE represents a vector floating-point type. */
1126 #define VECTOR_FLOAT_TYPE_P(TYPE) \
1127 (TREE_CODE (TYPE) == VECTOR_TYPE \
1128 && TREE_CODE (TREE_TYPE (TYPE)) == REAL_TYPE)
1130 /* Nonzero if TYPE represents a floating-point type, including complex
1131 and vector floating-point types. The vector and complex check does
1132 not use the previous two macros to enable early folding. */
1134 #define FLOAT_TYPE_P(TYPE) \
1135 (SCALAR_FLOAT_TYPE_P (TYPE) \
1136 || ((TREE_CODE (TYPE) == COMPLEX_TYPE \
1137 || TREE_CODE (TYPE) == VECTOR_TYPE) \
1138 && SCALAR_FLOAT_TYPE_P (TREE_TYPE (TYPE))))
1140 /* Nonzero if TYPE represents a decimal floating-point type. */
1141 #define DECIMAL_FLOAT_TYPE_P(TYPE) \
1142 (SCALAR_FLOAT_TYPE_P (TYPE) \
1143 && DECIMAL_FLOAT_MODE_P (TYPE_MODE (TYPE)))
1145 /* Nonzero if TYPE is a record or union type. */
1146 #define RECORD_OR_UNION_TYPE_P(TYPE) \
1147 (TREE_CODE (TYPE) == RECORD_TYPE \
1148 || TREE_CODE (TYPE) == UNION_TYPE \
1149 || TREE_CODE (TYPE) == QUAL_UNION_TYPE)
1151 /* Nonzero if TYPE represents an aggregate (multi-component) type.
1152 Keep these checks in ascending code order. */
1154 #define AGGREGATE_TYPE_P(TYPE) \
1155 (TREE_CODE (TYPE) == ARRAY_TYPE || RECORD_OR_UNION_TYPE_P (TYPE))
1157 /* Nonzero if TYPE represents a pointer or reference type.
1158 (It should be renamed to INDIRECT_TYPE_P.) Keep these checks in
1159 ascending code order. */
1161 #define POINTER_TYPE_P(TYPE) \
1162 (TREE_CODE (TYPE) == POINTER_TYPE || TREE_CODE (TYPE) == REFERENCE_TYPE)
1164 /* Nonzero if this type is a complete type. */
1165 #define COMPLETE_TYPE_P(NODE) (TYPE_SIZE (NODE) != NULL_TREE)
1167 /* Nonzero if this type is the (possibly qualified) void type. */
1168 #define VOID_TYPE_P(NODE) (TREE_CODE (NODE) == VOID_TYPE)
1170 /* Nonzero if this type is complete or is cv void. */
1171 #define COMPLETE_OR_VOID_TYPE_P(NODE) \
1172 (COMPLETE_TYPE_P (NODE) || VOID_TYPE_P (NODE))
1174 /* Nonzero if this type is complete or is an array with unspecified bound. */
1175 #define COMPLETE_OR_UNBOUND_ARRAY_TYPE_P(NODE) \
1176 (COMPLETE_TYPE_P (TREE_CODE (NODE) == ARRAY_TYPE ? TREE_TYPE (NODE) : (NODE)))
1179 /* Define many boolean fields that all tree nodes have. */
1181 /* In VAR_DECL, PARM_DECL and RESULT_DECL nodes, nonzero means address
1182 of this is needed. So it cannot be in a register.
1183 In a FUNCTION_DECL it has no meaning.
1184 In CONSTRUCTOR nodes, it means object constructed must be in memory.
1185 In LABEL_DECL nodes, it means a goto for this label has been seen
1186 from a place outside all binding contours that restore stack levels.
1187 In ..._TYPE nodes, it means that objects of this type must be fully
1188 addressable. This means that pieces of this object cannot go into
1189 register parameters, for example. If this a function type, this
1190 means that the value must be returned in memory.
1191 In IDENTIFIER_NODEs, this means that some extern decl for this name
1192 had its address taken. That matters for inline functions. */
1193 #define TREE_ADDRESSABLE(NODE) ((NODE)->base.addressable_flag)
1195 /* Set on a CALL_EXPR if the call is in a tail position, ie. just before the
1196 exit of a function. Calls for which this is true are candidates for tail
1197 call optimizations. */
1198 #define CALL_EXPR_TAILCALL(NODE) \
1199 (CALL_EXPR_CHECK(NODE)->base.addressable_flag)
1201 /* Used as a temporary field on a CASE_LABEL_EXPR to indicate that the
1202 CASE_LOW operand has been processed. */
1203 #define CASE_LOW_SEEN(NODE) \
1204 (CASE_LABEL_EXPR_CHECK (NODE)->base.addressable_flag)
1206 #define PREDICT_EXPR_OUTCOME(NODE) \
1207 ((enum prediction) (PREDICT_EXPR_CHECK(NODE)->base.addressable_flag))
1208 #define SET_PREDICT_EXPR_OUTCOME(NODE, OUTCOME) \
1209 (PREDICT_EXPR_CHECK(NODE)->base.addressable_flag = (int) OUTCOME)
1210 #define PREDICT_EXPR_PREDICTOR(NODE) \
1211 ((enum br_predictor)tree_low_cst (TREE_OPERAND (PREDICT_EXPR_CHECK (NODE), 0), 0))
1213 /* In a VAR_DECL, nonzero means allocate static storage.
1214 In a FUNCTION_DECL, nonzero if function has been defined.
1215 In a CONSTRUCTOR, nonzero means allocate static storage. */
1216 #define TREE_STATIC(NODE) ((NODE)->base.static_flag)
1218 /* In an ADDR_EXPR, nonzero means do not use a trampoline. */
1219 #define TREE_NO_TRAMPOLINE(NODE) (ADDR_EXPR_CHECK (NODE)->base.static_flag)
1221 /* In a TARGET_EXPR or WITH_CLEANUP_EXPR, means that the pertinent cleanup
1222 should only be executed if an exception is thrown, not on normal exit
1224 #define CLEANUP_EH_ONLY(NODE) ((NODE)->base.static_flag)
1226 /* In a TRY_CATCH_EXPR, means that the handler should be considered a
1227 separate cleanup in honor_protect_cleanup_actions. */
1228 #define TRY_CATCH_IS_CLEANUP(NODE) \
1229 (TRY_CATCH_EXPR_CHECK (NODE)->base.static_flag)
1231 /* Used as a temporary field on a CASE_LABEL_EXPR to indicate that the
1232 CASE_HIGH operand has been processed. */
1233 #define CASE_HIGH_SEEN(NODE) \
1234 (CASE_LABEL_EXPR_CHECK (NODE)->base.static_flag)
1236 /* Used to mark scoped enums. */
1237 #define ENUM_IS_SCOPED(NODE) (ENUMERAL_TYPE_CHECK (NODE)->base.static_flag)
1239 /* Determines whether an ENUMERAL_TYPE has defined the list of constants. */
1240 #define ENUM_IS_OPAQUE(NODE) (ENUMERAL_TYPE_CHECK (NODE)->base.private_flag)
1242 /* In an expr node (usually a conversion) this means the node was made
1243 implicitly and should not lead to any sort of warning. In a decl node,
1244 warnings concerning the decl should be suppressed. This is used at
1245 least for used-before-set warnings, and it set after one warning is
1247 #define TREE_NO_WARNING(NODE) ((NODE)->base.nowarning_flag)
1249 /* Used to indicate that this TYPE represents a compiler-generated entity. */
1250 #define TYPE_ARTIFICIAL(NODE) (TYPE_CHECK (NODE)->base.nowarning_flag)
1252 /* In an IDENTIFIER_NODE, this means that assemble_name was called with
1253 this string as an argument. */
1254 #define TREE_SYMBOL_REFERENCED(NODE) \
1255 (IDENTIFIER_NODE_CHECK (NODE)->base.static_flag)
1257 /* Nonzero in a pointer or reference type means the data pointed to
1258 by this type can alias anything. */
1259 #define TYPE_REF_CAN_ALIAS_ALL(NODE) \
1260 (PTR_OR_REF_CHECK (NODE)->base.static_flag)
1262 /* In a MODIFY_EXPR, means that the store in the expression is nontemporal. */
1263 #define MOVE_NONTEMPORAL(NODE) \
1264 (EXPR_CHECK (NODE)->base.static_flag)
1266 /* In an INTEGER_CST, REAL_CST, COMPLEX_CST, or VECTOR_CST, this means
1267 there was an overflow in folding. */
1269 #define TREE_OVERFLOW(NODE) (CST_CHECK (NODE)->base.public_flag)
1271 /* TREE_OVERFLOW can only be true for EXPR of CONSTANT_CLASS_P. */
1273 #define TREE_OVERFLOW_P(EXPR) \
1274 (CONSTANT_CLASS_P (EXPR) && TREE_OVERFLOW (EXPR))
1276 /* In a VAR_DECL, FUNCTION_DECL, NAMESPACE_DECL or TYPE_DECL,
1277 nonzero means name is to be accessible from outside this translation unit.
1278 In an IDENTIFIER_NODE, nonzero means an external declaration
1279 accessible from outside this translation unit was previously seen
1280 for this name in an inner scope. */
1281 #define TREE_PUBLIC(NODE) ((NODE)->base.public_flag)
1283 /* In a _TYPE, indicates whether TYPE_CACHED_VALUES contains a vector
1284 of cached values, or is something else. */
1285 #define TYPE_CACHED_VALUES_P(NODE) (TYPE_CHECK(NODE)->base.public_flag)
1287 /* In a SAVE_EXPR, indicates that the original expression has already
1288 been substituted with a VAR_DECL that contains the value. */
1289 #define SAVE_EXPR_RESOLVED_P(NODE) \
1290 (SAVE_EXPR_CHECK (NODE)->base.public_flag)
1292 /* Set on a CALL_EXPR if this stdarg call should be passed the argument
1294 #define CALL_EXPR_VA_ARG_PACK(NODE) \
1295 (CALL_EXPR_CHECK(NODE)->base.public_flag)
1297 /* In any expression, decl, or constant, nonzero means it has side effects or
1298 reevaluation of the whole expression could produce a different value.
1299 This is set if any subexpression is a function call, a side effect or a
1300 reference to a volatile variable. In a ..._DECL, this is set only if the
1301 declaration said `volatile'. This will never be set for a constant. */
1302 #define TREE_SIDE_EFFECTS(NODE) \
1303 (NON_TYPE_CHECK (NODE)->base.side_effects_flag)
1305 /* In a LABEL_DECL, nonzero means this label had its address taken
1306 and therefore can never be deleted and is a jump target for
1308 #define FORCED_LABEL(NODE) (LABEL_DECL_CHECK (NODE)->base.side_effects_flag)
1310 /* Nonzero means this expression is volatile in the C sense:
1311 its address should be of type `volatile WHATEVER *'.
1312 In other words, the declared item is volatile qualified.
1313 This is used in _DECL nodes and _REF nodes.
1314 On a FUNCTION_DECL node, this means the function does not
1315 return normally. This is the same effect as setting
1316 the attribute noreturn on the function in C.
1318 In a ..._TYPE node, means this type is volatile-qualified.
1319 But use TYPE_VOLATILE instead of this macro when the node is a type,
1320 because eventually we may make that a different bit.
1322 If this bit is set in an expression, so is TREE_SIDE_EFFECTS. */
1323 #define TREE_THIS_VOLATILE(NODE) ((NODE)->base.volatile_flag)
1325 /* Nonzero means this node will not trap. In an INDIRECT_REF, means
1326 accessing the memory pointed to won't generate a trap. However,
1327 this only applies to an object when used appropriately: it doesn't
1328 mean that writing a READONLY mem won't trap.
1330 In ARRAY_REF and ARRAY_RANGE_REF means that we know that the index
1331 (or slice of the array) always belongs to the range of the array.
1332 I.e. that the access will not trap, provided that the access to
1333 the base to the array will not trap. */
1334 #define TREE_THIS_NOTRAP(NODE) \
1335 (TREE_CHECK5 (NODE, INDIRECT_REF, MEM_REF, TARGET_MEM_REF, ARRAY_REF, \
1336 ARRAY_RANGE_REF)->base.nothrow_flag)
1338 /* In a VAR_DECL, PARM_DECL or FIELD_DECL, or any kind of ..._REF node,
1339 nonzero means it may not be the lhs of an assignment.
1340 Nonzero in a FUNCTION_DECL means this function should be treated
1341 as "const" function (can only read its arguments). */
1342 #define TREE_READONLY(NODE) (NON_TYPE_CHECK (NODE)->base.readonly_flag)
1344 /* Value of expression is constant. Always on in all ..._CST nodes. May
1345 also appear in an expression or decl where the value is constant. */
1346 #define TREE_CONSTANT(NODE) (NON_TYPE_CHECK (NODE)->base.constant_flag)
1348 /* Nonzero if NODE, a type, has had its sizes gimplified. */
1349 #define TYPE_SIZES_GIMPLIFIED(NODE) \
1350 (TYPE_CHECK (NODE)->base.constant_flag)
1352 /* In a decl (most significantly a FIELD_DECL), means an unsigned field. */
1353 #define DECL_UNSIGNED(NODE) \
1354 (DECL_COMMON_CHECK (NODE)->base.unsigned_flag)
1356 /* In integral and pointer types, means an unsigned type. */
1357 #define TYPE_UNSIGNED(NODE) (TYPE_CHECK (NODE)->base.unsigned_flag)
1359 /* Nonzero in a VAR_DECL or STRING_CST means assembler code has been written.
1360 Nonzero in a FUNCTION_DECL means that the function has been compiled.
1361 This is interesting in an inline function, since it might not need
1362 to be compiled separately.
1363 Nonzero in a RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE, ENUMERAL_TYPE
1364 or TYPE_DECL if the debugging info for the type has been written.
1365 In a BLOCK node, nonzero if reorder_blocks has already seen this block.
1366 In an SSA_NAME node, nonzero if the SSA_NAME occurs in an abnormal
1368 #define TREE_ASM_WRITTEN(NODE) ((NODE)->base.asm_written_flag)
1370 /* Nonzero in a _DECL if the name is used in its scope.
1371 Nonzero in an expr node means inhibit warning if value is unused.
1372 In IDENTIFIER_NODEs, this means that some extern decl for this name
1374 In a BLOCK, this means that the block contains variables that are used. */
1375 #define TREE_USED(NODE) ((NODE)->base.used_flag)
1377 /* In a FUNCTION_DECL, nonzero means a call to the function cannot
1378 throw an exception. In a CALL_EXPR, nonzero means the call cannot
1379 throw. We can't easily check the node type here as the C++
1380 frontend also uses this flag (for AGGR_INIT_EXPR). */
1381 #define TREE_NOTHROW(NODE) ((NODE)->base.nothrow_flag)
1383 /* In a CALL_EXPR, means that it's safe to use the target of the call
1384 expansion as the return slot for a call that returns in memory. */
1385 #define CALL_EXPR_RETURN_SLOT_OPT(NODE) \
1386 (CALL_EXPR_CHECK (NODE)->base.private_flag)
1388 /* In a RESULT_DECL, PARM_DECL and VAR_DECL, means that it is
1389 passed by invisible reference (and the TREE_TYPE is a pointer to the true
1391 #define DECL_BY_REFERENCE(NODE) \
1392 (TREE_CHECK3 (NODE, VAR_DECL, PARM_DECL, \
1393 RESULT_DECL)->decl_common.decl_by_reference_flag)
1395 /* In a RESULT_DECL, PARM_DECL and VAR_DECL, means that this decl
1396 can be used as restricted tag to disambiguate against other restrict
1397 pointers. Used by fortran to capture something like non-addressability
1398 (which it isn't really because the middle-end does take addresses of
1400 #define DECL_RESTRICTED_P(NODE) \
1401 (TREE_CHECK3 (NODE, VAR_DECL, PARM_DECL, \
1402 RESULT_DECL)->decl_common.decl_restricted_flag)
1404 #define DECL_READ_P(NODE) \
1405 (TREE_CHECK2 (NODE, VAR_DECL, PARM_DECL)->decl_common.decl_read_flag)
1407 #define DECL_NONSHAREABLE(NODE) \
1408 (TREE_CHECK2 (NODE, VAR_DECL, \
1409 RESULT_DECL)->decl_common.decl_nonshareable_flag)
1411 /* In a CALL_EXPR, means that the call is the jump from a thunk to the
1412 thunked-to function. */
1413 #define CALL_FROM_THUNK_P(NODE) (CALL_EXPR_CHECK (NODE)->base.protected_flag)
1415 /* In a CALL_EXPR, if the function being called is BUILT_IN_ALLOCA, means that
1416 it has been built for the declaration of a variable-sized object. */
1417 #define CALL_ALLOCA_FOR_VAR_P(NODE) \
1418 (CALL_EXPR_CHECK (NODE)->base.protected_flag)
1420 /* In a type, nonzero means that all objects of the type are guaranteed by the
1421 language or front-end to be properly aligned, so we can indicate that a MEM
1422 of this type is aligned at least to the alignment of the type, even if it
1423 doesn't appear that it is. We see this, for example, in object-oriented
1424 languages where a tag field may show this is an object of a more-aligned
1425 variant of the more generic type.
1427 In an SSA_NAME node, nonzero if the SSA_NAME node is on the SSA_NAME
1429 #define TYPE_ALIGN_OK(NODE) (TYPE_CHECK (NODE)->base.nothrow_flag)
1431 /* Used in classes in C++. */
1432 #define TREE_PRIVATE(NODE) ((NODE)->base.private_flag)
1433 /* Used in classes in C++. */
1434 #define TREE_PROTECTED(NODE) ((NODE)->base.protected_flag)
1436 /* True if reference type NODE is a C++ rvalue reference. */
1437 #define TYPE_REF_IS_RVALUE(NODE) \
1438 (REFERENCE_TYPE_CHECK (NODE)->base.private_flag)
1440 /* Nonzero in a _DECL if the use of the name is defined as a
1441 deprecated feature by __attribute__((deprecated)). */
1442 #define TREE_DEPRECATED(NODE) \
1443 ((NODE)->base.deprecated_flag)
1445 /* Nonzero in an IDENTIFIER_NODE if the name is a local alias, whose
1446 uses are to be substituted for uses of the TREE_CHAINed identifier. */
1447 #define IDENTIFIER_TRANSPARENT_ALIAS(NODE) \
1448 (IDENTIFIER_NODE_CHECK (NODE)->base.deprecated_flag)
1450 /* In fixed-point types, means a saturating type. */
1451 #define TYPE_SATURATING(NODE) ((NODE)->base.saturating_flag)
1453 /* These flags are available for each language front end to use internally. */
1454 #define TREE_LANG_FLAG_0(NODE) ((NODE)->base.lang_flag_0)
1455 #define TREE_LANG_FLAG_1(NODE) ((NODE)->base.lang_flag_1)
1456 #define TREE_LANG_FLAG_2(NODE) ((NODE)->base.lang_flag_2)
1457 #define TREE_LANG_FLAG_3(NODE) ((NODE)->base.lang_flag_3)
1458 #define TREE_LANG_FLAG_4(NODE) ((NODE)->base.lang_flag_4)
1459 #define TREE_LANG_FLAG_5(NODE) ((NODE)->base.lang_flag_5)
1460 #define TREE_LANG_FLAG_6(NODE) ((NODE)->base.lang_flag_6)
1462 /* Define additional fields and accessors for nodes representing constants. */
1464 /* In an INTEGER_CST node. These two together make a 2-word integer.
1465 If the data type is signed, the value is sign-extended to 2 words
1466 even though not all of them may really be in use.
1467 In an unsigned constant shorter than 2 words, the extra bits are 0. */
1468 #define TREE_INT_CST(NODE) (INTEGER_CST_CHECK (NODE)->int_cst.int_cst)
1469 #define TREE_INT_CST_LOW(NODE) (TREE_INT_CST (NODE).low)
1470 #define TREE_INT_CST_HIGH(NODE) (TREE_INT_CST (NODE).high)
1472 #define INT_CST_LT(A, B) \
1473 (TREE_INT_CST_HIGH (A) < TREE_INT_CST_HIGH (B) \
1474 || (TREE_INT_CST_HIGH (A) == TREE_INT_CST_HIGH (B) \
1475 && TREE_INT_CST_LOW (A) < TREE_INT_CST_LOW (B)))
1477 #define INT_CST_LT_UNSIGNED(A, B) \
1478 (((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \
1479 < (unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (B)) \
1480 || (((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \
1481 == (unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (B)) \
1482 && TREE_INT_CST_LOW (A) < TREE_INT_CST_LOW (B)))
1484 struct GTY(()) tree_int_cst {
1485 struct tree_typed typed;
1489 /* In a REAL_CST node. struct real_value is an opaque entity, with
1490 manipulators defined in real.h. We don't want tree.h depending on
1491 real.h and transitively on tm.h. */
1494 #define TREE_REAL_CST_PTR(NODE) (REAL_CST_CHECK (NODE)->real_cst.real_cst_ptr)
1495 #define TREE_REAL_CST(NODE) (*TREE_REAL_CST_PTR (NODE))
1497 struct GTY(()) tree_real_cst {
1498 struct tree_typed typed;
1499 struct real_value * real_cst_ptr;
1502 /* In a FIXED_CST node. */
1505 #define TREE_FIXED_CST_PTR(NODE) \
1506 (FIXED_CST_CHECK (NODE)->fixed_cst.fixed_cst_ptr)
1507 #define TREE_FIXED_CST(NODE) (*TREE_FIXED_CST_PTR (NODE))
1509 struct GTY(()) tree_fixed_cst {
1510 struct tree_typed typed;
1511 struct fixed_value * fixed_cst_ptr;
1514 /* In a STRING_CST */
1515 /* In C terms, this is sizeof, not strlen. */
1516 #define TREE_STRING_LENGTH(NODE) (STRING_CST_CHECK (NODE)->string.length)
1517 #define TREE_STRING_POINTER(NODE) \
1518 ((const char *)(STRING_CST_CHECK (NODE)->string.str))
1520 struct GTY(()) tree_string {
1521 struct tree_typed typed;
1526 /* In a COMPLEX_CST node. */
1527 #define TREE_REALPART(NODE) (COMPLEX_CST_CHECK (NODE)->complex.real)
1528 #define TREE_IMAGPART(NODE) (COMPLEX_CST_CHECK (NODE)->complex.imag)
1530 struct GTY(()) tree_complex {
1531 struct tree_typed typed;
1536 /* In a VECTOR_CST node. */
1537 #define TREE_VECTOR_CST_ELTS(NODE) (VECTOR_CST_CHECK (NODE)->vector.elements)
1539 struct GTY(()) tree_vector {
1540 struct tree_typed typed;
1546 /* Define fields and accessors for some special-purpose tree nodes. */
1548 #define IDENTIFIER_LENGTH(NODE) \
1549 (IDENTIFIER_NODE_CHECK (NODE)->identifier.id.len)
1550 #define IDENTIFIER_POINTER(NODE) \
1551 ((const char *) IDENTIFIER_NODE_CHECK (NODE)->identifier.id.str)
1552 #define IDENTIFIER_HASH_VALUE(NODE) \
1553 (IDENTIFIER_NODE_CHECK (NODE)->identifier.id.hash_value)
1555 /* Translate a hash table identifier pointer to a tree_identifier
1556 pointer, and vice versa. */
1558 #define HT_IDENT_TO_GCC_IDENT(NODE) \
1559 ((tree) ((char *) (NODE) - sizeof (struct tree_common)))
1560 #define GCC_IDENT_TO_HT_IDENT(NODE) (&((struct tree_identifier *) (NODE))->id)
1562 struct GTY(()) tree_identifier {
1563 struct tree_common common;
1564 struct ht_identifier id;
1567 /* In a TREE_LIST node. */
1568 #define TREE_PURPOSE(NODE) (TREE_LIST_CHECK (NODE)->list.purpose)
1569 #define TREE_VALUE(NODE) (TREE_LIST_CHECK (NODE)->list.value)
1571 struct GTY(()) tree_list {
1572 struct tree_common common;
1577 /* In a TREE_VEC node. */
1578 #define TREE_VEC_LENGTH(NODE) (TREE_VEC_CHECK (NODE)->vec.length)
1579 #define TREE_VEC_END(NODE) \
1580 ((void) TREE_VEC_CHECK (NODE), &((NODE)->vec.a[(NODE)->vec.length]))
1582 #define TREE_VEC_ELT(NODE,I) TREE_VEC_ELT_CHECK (NODE, I)
1584 struct GTY(()) tree_vec {
1585 struct tree_common common;
1587 tree GTY ((length ("TREE_VEC_LENGTH ((tree)&%h)"))) a[1];
1590 /* In a CONSTRUCTOR node. */
1591 #define CONSTRUCTOR_ELTS(NODE) (CONSTRUCTOR_CHECK (NODE)->constructor.elts)
1592 #define CONSTRUCTOR_ELT(NODE,IDX) \
1593 (VEC_index (constructor_elt, CONSTRUCTOR_ELTS (NODE), IDX))
1594 #define CONSTRUCTOR_NELTS(NODE) \
1595 (VEC_length (constructor_elt, CONSTRUCTOR_ELTS (NODE)))
1597 /* Iterate through the vector V of CONSTRUCTOR_ELT elements, yielding the
1598 value of each element (stored within VAL). IX must be a scratch variable
1599 of unsigned integer type. */
1600 #define FOR_EACH_CONSTRUCTOR_VALUE(V, IX, VAL) \
1601 for (IX = 0; (IX >= VEC_length (constructor_elt, V)) \
1603 : ((VAL = VEC_index (constructor_elt, V, IX)->value), \
1607 /* Iterate through the vector V of CONSTRUCTOR_ELT elements, yielding both
1608 the value of each element (stored within VAL) and its index (stored
1609 within INDEX). IX must be a scratch variable of unsigned integer type. */
1610 #define FOR_EACH_CONSTRUCTOR_ELT(V, IX, INDEX, VAL) \
1611 for (IX = 0; (IX >= VEC_length (constructor_elt, V)) \
1613 : (((void) (VAL = VEC_index (constructor_elt, V, IX)->value)), \
1614 (INDEX = VEC_index (constructor_elt, V, IX)->index), \
1618 /* Append a new constructor element to V, with the specified INDEX and VAL. */
1619 #define CONSTRUCTOR_APPEND_ELT(V, INDEX, VALUE) \
1621 constructor_elt *_ce___ = VEC_safe_push (constructor_elt, gc, V, NULL); \
1622 _ce___->index = INDEX; \
1623 _ce___->value = VALUE; \
1626 /* True if NODE, a FIELD_DECL, is to be processed as a bitfield for
1627 constructor output purposes. */
1628 #define CONSTRUCTOR_BITFIELD_P(NODE) \
1629 (DECL_BIT_FIELD (FIELD_DECL_CHECK (NODE)) && DECL_MODE (NODE) != BLKmode)
1631 /* True if NODE is a clobber right hand side, an expression of indeterminate
1632 value that clobbers the LHS in a copy instruction. We use a volatile
1633 empty CONSTRUCTOR for this, as it matches most of the necessary semantic.
1634 In particular the volatile flag causes us to not prematurely remove
1635 such clobber instructions. */
1636 #define TREE_CLOBBER_P(NODE) \
1637 (TREE_CODE (NODE) == CONSTRUCTOR && TREE_THIS_VOLATILE (NODE))
1639 /* A single element of a CONSTRUCTOR. VALUE holds the actual value of the
1640 element. INDEX can optionally design the position of VALUE: in arrays,
1641 it is the index where VALUE has to be placed; in structures, it is the
1642 FIELD_DECL of the member. */
1643 typedef struct GTY(()) constructor_elt_d {
1648 DEF_VEC_O(constructor_elt);
1649 DEF_VEC_ALLOC_O(constructor_elt,gc);
1651 struct GTY(()) tree_constructor {
1652 struct tree_typed typed;
1653 VEC(constructor_elt,gc) *elts;
1656 /* Define fields and accessors for some nodes that represent expressions. */
1658 /* Nonzero if NODE is an empty statement (NOP_EXPR <0>). */
1659 #define IS_EMPTY_STMT(NODE) (TREE_CODE (NODE) == NOP_EXPR \
1660 && VOID_TYPE_P (TREE_TYPE (NODE)) \
1661 && integer_zerop (TREE_OPERAND (NODE, 0)))
1663 /* In ordinary expression nodes. */
1664 #define TREE_OPERAND_LENGTH(NODE) tree_operand_length (NODE)
1665 #define TREE_OPERAND(NODE, I) TREE_OPERAND_CHECK (NODE, I)
1667 /* In a tcc_vl_exp node, operand 0 is an INT_CST node holding the operand
1668 length. Its value includes the length operand itself; that is,
1669 the minimum valid length is 1.
1670 Note that we have to bypass the use of TREE_OPERAND to access
1671 that field to avoid infinite recursion in expanding the macros. */
1672 #define VL_EXP_OPERAND_LENGTH(NODE) \
1673 ((int)TREE_INT_CST_LOW (VL_EXP_CHECK (NODE)->exp.operands[0]))
1675 /* Nonzero if is_gimple_debug() may possibly hold. */
1676 #define MAY_HAVE_DEBUG_STMTS (flag_var_tracking_assignments)
1678 /* In a LOOP_EXPR node. */
1679 #define LOOP_EXPR_BODY(NODE) TREE_OPERAND_CHECK_CODE (NODE, LOOP_EXPR, 0)
1681 /* The source location of this expression. Non-tree_exp nodes such as
1682 decls and constants can be shared among multiple locations, so
1684 #define EXPR_LOCATION(NODE) \
1685 (EXPR_P ((NODE)) ? (NODE)->exp.locus : UNKNOWN_LOCATION)
1686 #define SET_EXPR_LOCATION(NODE, LOCUS) EXPR_CHECK ((NODE))->exp.locus = (LOCUS)
1687 #define EXPR_HAS_LOCATION(NODE) (EXPR_LOCATION (NODE) != UNKNOWN_LOCATION)
1688 #define EXPR_LOC_OR_HERE(NODE) (EXPR_HAS_LOCATION (NODE) ? (NODE)->exp.locus : input_location)
1689 #define EXPR_FILENAME(NODE) LOCATION_FILE (EXPR_CHECK ((NODE))->exp.locus)
1690 #define EXPR_LINENO(NODE) LOCATION_LINE (EXPR_CHECK (NODE)->exp.locus)
1692 /* True if a tree is an expression or statement that can have a
1694 #define CAN_HAVE_LOCATION_P(NODE) ((NODE) && EXPR_P (NODE))
1696 extern void protected_set_expr_location (tree, location_t);
1698 /* In a TARGET_EXPR node. */
1699 #define TARGET_EXPR_SLOT(NODE) TREE_OPERAND_CHECK_CODE (NODE, TARGET_EXPR, 0)
1700 #define TARGET_EXPR_INITIAL(NODE) TREE_OPERAND_CHECK_CODE (NODE, TARGET_EXPR, 1)
1701 #define TARGET_EXPR_CLEANUP(NODE) TREE_OPERAND_CHECK_CODE (NODE, TARGET_EXPR, 2)
1703 /* DECL_EXPR accessor. This gives access to the DECL associated with
1704 the given declaration statement. */
1705 #define DECL_EXPR_DECL(NODE) TREE_OPERAND (DECL_EXPR_CHECK (NODE), 0)
1707 #define EXIT_EXPR_COND(NODE) TREE_OPERAND (EXIT_EXPR_CHECK (NODE), 0)
1709 /* COMPOUND_LITERAL_EXPR accessors. */
1710 #define COMPOUND_LITERAL_EXPR_DECL_EXPR(NODE) \
1711 TREE_OPERAND (COMPOUND_LITERAL_EXPR_CHECK (NODE), 0)
1712 #define COMPOUND_LITERAL_EXPR_DECL(NODE) \
1713 DECL_EXPR_DECL (COMPOUND_LITERAL_EXPR_DECL_EXPR (NODE))
1715 /* SWITCH_EXPR accessors. These give access to the condition, body and
1716 original condition type (before any compiler conversions)
1717 of the switch statement, respectively. */
1718 #define SWITCH_COND(NODE) TREE_OPERAND (SWITCH_EXPR_CHECK (NODE), 0)
1719 #define SWITCH_BODY(NODE) TREE_OPERAND (SWITCH_EXPR_CHECK (NODE), 1)
1720 #define SWITCH_LABELS(NODE) TREE_OPERAND (SWITCH_EXPR_CHECK (NODE), 2)
1722 /* CASE_LABEL_EXPR accessors. These give access to the high and low values
1723 of a case label, respectively. */
1724 #define CASE_LOW(NODE) TREE_OPERAND (CASE_LABEL_EXPR_CHECK (NODE), 0)
1725 #define CASE_HIGH(NODE) TREE_OPERAND (CASE_LABEL_EXPR_CHECK (NODE), 1)
1726 #define CASE_LABEL(NODE) TREE_OPERAND (CASE_LABEL_EXPR_CHECK (NODE), 2)
1727 #define CASE_CHAIN(NODE) TREE_OPERAND (CASE_LABEL_EXPR_CHECK (NODE), 3)
1729 /* The operands of a TARGET_MEM_REF. Operands 0 and 1 have to match
1730 corresponding MEM_REF operands. */
1731 #define TMR_BASE(NODE) (TREE_OPERAND (TARGET_MEM_REF_CHECK (NODE), 0))
1732 #define TMR_OFFSET(NODE) (TREE_OPERAND (TARGET_MEM_REF_CHECK (NODE), 1))
1733 #define TMR_INDEX(NODE) (TREE_OPERAND (TARGET_MEM_REF_CHECK (NODE), 2))
1734 #define TMR_STEP(NODE) (TREE_OPERAND (TARGET_MEM_REF_CHECK (NODE), 3))
1735 #define TMR_INDEX2(NODE) (TREE_OPERAND (TARGET_MEM_REF_CHECK (NODE), 4))
1737 /* The operands of a BIND_EXPR. */
1738 #define BIND_EXPR_VARS(NODE) (TREE_OPERAND (BIND_EXPR_CHECK (NODE), 0))
1739 #define BIND_EXPR_BODY(NODE) (TREE_OPERAND (BIND_EXPR_CHECK (NODE), 1))
1740 #define BIND_EXPR_BLOCK(NODE) (TREE_OPERAND (BIND_EXPR_CHECK (NODE), 2))
1742 /* GOTO_EXPR accessor. This gives access to the label associated with
1743 a goto statement. */
1744 #define GOTO_DESTINATION(NODE) TREE_OPERAND ((NODE), 0)
1746 /* ASM_EXPR accessors. ASM_STRING returns a STRING_CST for the
1747 instruction (e.g., "mov x, y"). ASM_OUTPUTS, ASM_INPUTS, and
1748 ASM_CLOBBERS represent the outputs, inputs, and clobbers for the
1750 #define ASM_STRING(NODE) TREE_OPERAND (ASM_EXPR_CHECK (NODE), 0)
1751 #define ASM_OUTPUTS(NODE) TREE_OPERAND (ASM_EXPR_CHECK (NODE), 1)
1752 #define ASM_INPUTS(NODE) TREE_OPERAND (ASM_EXPR_CHECK (NODE), 2)
1753 #define ASM_CLOBBERS(NODE) TREE_OPERAND (ASM_EXPR_CHECK (NODE), 3)
1754 #define ASM_LABELS(NODE) TREE_OPERAND (ASM_EXPR_CHECK (NODE), 4)
1755 /* Nonzero if we want to create an ASM_INPUT instead of an
1756 ASM_OPERAND with no operands. */
1757 #define ASM_INPUT_P(NODE) (ASM_EXPR_CHECK (NODE)->base.static_flag)
1758 #define ASM_VOLATILE_P(NODE) (ASM_EXPR_CHECK (NODE)->base.public_flag)
1760 /* COND_EXPR accessors. */
1761 #define COND_EXPR_COND(NODE) (TREE_OPERAND (COND_EXPR_CHECK (NODE), 0))
1762 #define COND_EXPR_THEN(NODE) (TREE_OPERAND (COND_EXPR_CHECK (NODE), 1))
1763 #define COND_EXPR_ELSE(NODE) (TREE_OPERAND (COND_EXPR_CHECK (NODE), 2))
1765 /* Accessors for the chains of recurrences. */
1766 #define CHREC_VAR(NODE) TREE_OPERAND (POLYNOMIAL_CHREC_CHECK (NODE), 0)
1767 #define CHREC_LEFT(NODE) TREE_OPERAND (POLYNOMIAL_CHREC_CHECK (NODE), 1)
1768 #define CHREC_RIGHT(NODE) TREE_OPERAND (POLYNOMIAL_CHREC_CHECK (NODE), 2)
1769 #define CHREC_VARIABLE(NODE) TREE_INT_CST_LOW (CHREC_VAR (NODE))
1771 /* LABEL_EXPR accessor. This gives access to the label associated with
1772 the given label expression. */
1773 #define LABEL_EXPR_LABEL(NODE) TREE_OPERAND (LABEL_EXPR_CHECK (NODE), 0)
1775 /* VDEF_EXPR accessors are specified in tree-flow.h, along with the other
1776 accessors for SSA operands. */
1778 /* CATCH_EXPR accessors. */
1779 #define CATCH_TYPES(NODE) TREE_OPERAND (CATCH_EXPR_CHECK (NODE), 0)
1780 #define CATCH_BODY(NODE) TREE_OPERAND (CATCH_EXPR_CHECK (NODE), 1)
1782 /* EH_FILTER_EXPR accessors. */
1783 #define EH_FILTER_TYPES(NODE) TREE_OPERAND (EH_FILTER_EXPR_CHECK (NODE), 0)
1784 #define EH_FILTER_FAILURE(NODE) TREE_OPERAND (EH_FILTER_EXPR_CHECK (NODE), 1)
1786 /* OBJ_TYPE_REF accessors. */
1787 #define OBJ_TYPE_REF_EXPR(NODE) TREE_OPERAND (OBJ_TYPE_REF_CHECK (NODE), 0)
1788 #define OBJ_TYPE_REF_OBJECT(NODE) TREE_OPERAND (OBJ_TYPE_REF_CHECK (NODE), 1)
1789 #define OBJ_TYPE_REF_TOKEN(NODE) TREE_OPERAND (OBJ_TYPE_REF_CHECK (NODE), 2)
1791 /* ASSERT_EXPR accessors. */
1792 #define ASSERT_EXPR_VAR(NODE) TREE_OPERAND (ASSERT_EXPR_CHECK (NODE), 0)
1793 #define ASSERT_EXPR_COND(NODE) TREE_OPERAND (ASSERT_EXPR_CHECK (NODE), 1)
1795 /* CALL_EXPR accessors.
1797 #define CALL_EXPR_FN(NODE) TREE_OPERAND (CALL_EXPR_CHECK (NODE), 1)
1798 #define CALL_EXPR_STATIC_CHAIN(NODE) TREE_OPERAND (CALL_EXPR_CHECK (NODE), 2)
1799 #define CALL_EXPR_ARG(NODE, I) TREE_OPERAND (CALL_EXPR_CHECK (NODE), (I) + 3)
1800 #define call_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3)
1802 /* CALL_EXPR_ARGP returns a pointer to the argument vector for NODE.
1803 We can't use &CALL_EXPR_ARG (NODE, 0) because that will complain if
1804 the argument count is zero when checking is enabled. Instead, do
1805 the pointer arithmetic to advance past the 3 fixed operands in a
1806 CALL_EXPR. That produces a valid pointer to just past the end of the
1807 operand array, even if it's not valid to dereference it. */
1808 #define CALL_EXPR_ARGP(NODE) \
1809 (&(TREE_OPERAND (CALL_EXPR_CHECK (NODE), 0)) + 3)
1811 /* TM directives and accessors. */
1812 #define TRANSACTION_EXPR_BODY(NODE) \
1813 TREE_OPERAND (TRANSACTION_EXPR_CHECK (NODE), 0)
1814 #define TRANSACTION_EXPR_OUTER(NODE) \
1815 (TRANSACTION_EXPR_CHECK (NODE)->base.static_flag)
1816 #define TRANSACTION_EXPR_RELAXED(NODE) \
1817 (TRANSACTION_EXPR_CHECK (NODE)->base.public_flag)
1819 /* OpenMP directive and clause accessors. */
1821 #define OMP_BODY(NODE) \
1822 TREE_OPERAND (TREE_RANGE_CHECK (NODE, OMP_PARALLEL, OMP_CRITICAL), 0)
1823 #define OMP_CLAUSES(NODE) \
1824 TREE_OPERAND (TREE_RANGE_CHECK (NODE, OMP_PARALLEL, OMP_SINGLE), 1)
1826 #define OMP_PARALLEL_BODY(NODE) TREE_OPERAND (OMP_PARALLEL_CHECK (NODE), 0)
1827 #define OMP_PARALLEL_CLAUSES(NODE) TREE_OPERAND (OMP_PARALLEL_CHECK (NODE), 1)
1829 #define OMP_TASK_BODY(NODE) TREE_OPERAND (OMP_TASK_CHECK (NODE), 0)
1830 #define OMP_TASK_CLAUSES(NODE) TREE_OPERAND (OMP_TASK_CHECK (NODE), 1)
1832 #define OMP_TASKREG_CHECK(NODE) TREE_RANGE_CHECK (NODE, OMP_PARALLEL, OMP_TASK)
1833 #define OMP_TASKREG_BODY(NODE) TREE_OPERAND (OMP_TASKREG_CHECK (NODE), 0)
1834 #define OMP_TASKREG_CLAUSES(NODE) TREE_OPERAND (OMP_TASKREG_CHECK (NODE), 1)
1836 #define OMP_FOR_BODY(NODE) TREE_OPERAND (OMP_FOR_CHECK (NODE), 0)
1837 #define OMP_FOR_CLAUSES(NODE) TREE_OPERAND (OMP_FOR_CHECK (NODE), 1)
1838 #define OMP_FOR_INIT(NODE) TREE_OPERAND (OMP_FOR_CHECK (NODE), 2)
1839 #define OMP_FOR_COND(NODE) TREE_OPERAND (OMP_FOR_CHECK (NODE), 3)
1840 #define OMP_FOR_INCR(NODE) TREE_OPERAND (OMP_FOR_CHECK (NODE), 4)
1841 #define OMP_FOR_PRE_BODY(NODE) TREE_OPERAND (OMP_FOR_CHECK (NODE), 5)
1843 #define OMP_SECTIONS_BODY(NODE) TREE_OPERAND (OMP_SECTIONS_CHECK (NODE), 0)
1844 #define OMP_SECTIONS_CLAUSES(NODE) TREE_OPERAND (OMP_SECTIONS_CHECK (NODE), 1)
1846 #define OMP_SECTION_BODY(NODE) TREE_OPERAND (OMP_SECTION_CHECK (NODE), 0)
1848 #define OMP_SINGLE_BODY(NODE) TREE_OPERAND (OMP_SINGLE_CHECK (NODE), 0)
1849 #define OMP_SINGLE_CLAUSES(NODE) TREE_OPERAND (OMP_SINGLE_CHECK (NODE), 1)
1851 #define OMP_MASTER_BODY(NODE) TREE_OPERAND (OMP_MASTER_CHECK (NODE), 0)
1853 #define OMP_ORDERED_BODY(NODE) TREE_OPERAND (OMP_ORDERED_CHECK (NODE), 0)
1855 #define OMP_CRITICAL_BODY(NODE) TREE_OPERAND (OMP_CRITICAL_CHECK (NODE), 0)
1856 #define OMP_CRITICAL_NAME(NODE) TREE_OPERAND (OMP_CRITICAL_CHECK (NODE), 1)
1858 #define OMP_CLAUSE_CHAIN(NODE) TREE_CHAIN (OMP_CLAUSE_CHECK (NODE))
1859 #define OMP_CLAUSE_DECL(NODE) \
1860 OMP_CLAUSE_OPERAND (OMP_CLAUSE_RANGE_CHECK (OMP_CLAUSE_CHECK (NODE), \
1861 OMP_CLAUSE_PRIVATE, \
1862 OMP_CLAUSE_COPYPRIVATE), 0)
1863 #define OMP_CLAUSE_HAS_LOCATION(NODE) \
1864 ((OMP_CLAUSE_CHECK (NODE))->omp_clause.locus != UNKNOWN_LOCATION)
1865 #define OMP_CLAUSE_LOCATION(NODE) (OMP_CLAUSE_CHECK (NODE))->omp_clause.locus
1867 /* True on an OMP_SECTION statement that was the last lexical member.
1868 This status is meaningful in the implementation of lastprivate. */
1869 #define OMP_SECTION_LAST(NODE) \
1870 (OMP_SECTION_CHECK (NODE)->base.private_flag)
1872 /* True on an OMP_PARALLEL statement if it represents an explicit
1873 combined parallel work-sharing constructs. */
1874 #define OMP_PARALLEL_COMBINED(NODE) \
1875 (OMP_PARALLEL_CHECK (NODE)->base.private_flag)
1877 /* True on a PRIVATE clause if its decl is kept around for debugging
1878 information only and its DECL_VALUE_EXPR is supposed to point
1879 to what it has been remapped to. */
1880 #define OMP_CLAUSE_PRIVATE_DEBUG(NODE) \
1881 (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_PRIVATE)->base.public_flag)
1883 /* True on a PRIVATE clause if ctor needs access to outer region's
1885 #define OMP_CLAUSE_PRIVATE_OUTER_REF(NODE) \
1886 TREE_PRIVATE (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_PRIVATE))
1888 /* True on a LASTPRIVATE clause if a FIRSTPRIVATE clause for the same
1889 decl is present in the chain. */
1890 #define OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE(NODE) \
1891 (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_LASTPRIVATE)->base.public_flag)
1892 #define OMP_CLAUSE_LASTPRIVATE_STMT(NODE) \
1893 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, \
1894 OMP_CLAUSE_LASTPRIVATE),\
1896 #define OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ(NODE) \
1897 (OMP_CLAUSE_CHECK (NODE))->omp_clause.gimple_reduction_init
1899 #define OMP_CLAUSE_FINAL_EXPR(NODE) \
1900 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_FINAL), 0)
1901 #define OMP_CLAUSE_IF_EXPR(NODE) \
1902 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_IF), 0)
1903 #define OMP_CLAUSE_NUM_THREADS_EXPR(NODE) \
1904 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_NUM_THREADS),0)
1905 #define OMP_CLAUSE_SCHEDULE_CHUNK_EXPR(NODE) \
1906 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_SCHEDULE), 0)
1908 #define OMP_CLAUSE_COLLAPSE_EXPR(NODE) \
1909 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_COLLAPSE), 0)
1910 #define OMP_CLAUSE_COLLAPSE_ITERVAR(NODE) \
1911 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_COLLAPSE), 1)
1912 #define OMP_CLAUSE_COLLAPSE_COUNT(NODE) \
1913 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_COLLAPSE), 2)
1915 #define OMP_CLAUSE_REDUCTION_CODE(NODE) \
1916 (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_REDUCTION)->omp_clause.subcode.reduction_code)
1917 #define OMP_CLAUSE_REDUCTION_INIT(NODE) \
1918 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_REDUCTION), 1)
1919 #define OMP_CLAUSE_REDUCTION_MERGE(NODE) \
1920 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_REDUCTION), 2)
1921 #define OMP_CLAUSE_REDUCTION_GIMPLE_INIT(NODE) \
1922 (OMP_CLAUSE_CHECK (NODE))->omp_clause.gimple_reduction_init
1923 #define OMP_CLAUSE_REDUCTION_GIMPLE_MERGE(NODE) \
1924 (OMP_CLAUSE_CHECK (NODE))->omp_clause.gimple_reduction_merge
1925 #define OMP_CLAUSE_REDUCTION_PLACEHOLDER(NODE) \
1926 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_REDUCTION), 3)
1928 enum omp_clause_schedule_kind
1930 OMP_CLAUSE_SCHEDULE_STATIC,
1931 OMP_CLAUSE_SCHEDULE_DYNAMIC,
1932 OMP_CLAUSE_SCHEDULE_GUIDED,
1933 OMP_CLAUSE_SCHEDULE_AUTO,
1934 OMP_CLAUSE_SCHEDULE_RUNTIME
1937 #define OMP_CLAUSE_SCHEDULE_KIND(NODE) \
1938 (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_SCHEDULE)->omp_clause.subcode.schedule_kind)
1940 enum omp_clause_default_kind
1942 OMP_CLAUSE_DEFAULT_UNSPECIFIED,
1943 OMP_CLAUSE_DEFAULT_SHARED,
1944 OMP_CLAUSE_DEFAULT_NONE,
1945 OMP_CLAUSE_DEFAULT_PRIVATE,
1946 OMP_CLAUSE_DEFAULT_FIRSTPRIVATE
1949 #define OMP_CLAUSE_DEFAULT_KIND(NODE) \
1950 (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_DEFAULT)->omp_clause.subcode.default_kind)
1952 struct GTY(()) tree_exp {
1953 struct tree_typed typed;
1956 tree GTY ((special ("tree_exp"),
1957 desc ("TREE_CODE ((tree) &%0)")))
1961 /* SSA_NAME accessors. */
1963 /* Returns the variable being referenced. Once released, this is the
1964 only field that can be relied upon. */
1965 #define SSA_NAME_VAR(NODE) SSA_NAME_CHECK (NODE)->ssa_name.var
1967 /* Returns the statement which defines this SSA name. */
1968 #define SSA_NAME_DEF_STMT(NODE) SSA_NAME_CHECK (NODE)->ssa_name.def_stmt
1970 /* Returns the SSA version number of this SSA name. Note that in
1971 tree SSA, version numbers are not per variable and may be recycled. */
1972 #define SSA_NAME_VERSION(NODE) SSA_NAME_CHECK (NODE)->ssa_name.version
1974 /* Nonzero if this SSA name occurs in an abnormal PHI. SSA_NAMES are
1975 never output, so we can safely use the ASM_WRITTEN_FLAG for this
1977 #define SSA_NAME_OCCURS_IN_ABNORMAL_PHI(NODE) \
1978 SSA_NAME_CHECK (NODE)->base.asm_written_flag
1980 /* Nonzero if this SSA_NAME expression is currently on the free list of
1981 SSA_NAMES. Using NOTHROW_FLAG seems reasonably safe since throwing
1982 has no meaning for an SSA_NAME. */
1983 #define SSA_NAME_IN_FREE_LIST(NODE) \
1984 SSA_NAME_CHECK (NODE)->base.nothrow_flag
1986 /* Nonzero if this SSA_NAME is the default definition for the
1987 underlying symbol. A default SSA name is created for symbol S if
1988 the very first reference to S in the function is a read operation.
1989 Default definitions are always created by an empty statement and
1990 belong to no basic block. */
1991 #define SSA_NAME_IS_DEFAULT_DEF(NODE) \
1992 SSA_NAME_CHECK (NODE)->base.default_def_flag
1994 /* Attributes for SSA_NAMEs for pointer-type variables. */
1995 #define SSA_NAME_PTR_INFO(N) \
1996 SSA_NAME_CHECK (N)->ssa_name.ptr_info
1998 /* Defined in tree-flow.h. */
1999 struct ptr_info_def;
2001 /* Immediate use linking structure. This structure is used for maintaining
2002 a doubly linked list of uses of an SSA_NAME. */
2003 typedef struct GTY(()) ssa_use_operand_d {
2004 struct ssa_use_operand_d* GTY((skip(""))) prev;
2005 struct ssa_use_operand_d* GTY((skip(""))) next;
2006 /* Immediate uses for a given SSA name are maintained as a cyclic
2007 list. To recognize the root of this list, the location field
2008 needs to point to the original SSA name. Since statements and
2009 SSA names are of different data types, we need this union. See
2010 the explanation in struct immediate_use_iterator_d. */
2011 union { gimple stmt; tree ssa_name; } GTY((skip(""))) loc;
2012 tree *GTY((skip(""))) use;
2013 } ssa_use_operand_t;
2015 /* Return the immediate_use information for an SSA_NAME. */
2016 #define SSA_NAME_IMM_USE_NODE(NODE) SSA_NAME_CHECK (NODE)->ssa_name.imm_uses
2018 struct GTY(()) tree_ssa_name {
2019 struct tree_typed typed;
2021 /* _DECL wrapped by this SSA name. */
2024 /* Statement that defines this SSA name. */
2027 /* SSA version number. */
2028 unsigned int version;
2030 /* Pointer attributes used for alias analysis. */
2031 struct ptr_info_def *ptr_info;
2033 /* Immediate uses list for this SSA_NAME. */
2034 struct ssa_use_operand_d imm_uses;
2037 struct GTY(()) phi_arg_d {
2038 /* imm_use MUST be the first element in struct because we do some
2039 pointer arithmetic with it. See phi_arg_index_from_use. */
2040 struct ssa_use_operand_d imm_use;
2046 #define OMP_CLAUSE_CODE(NODE) \
2047 (OMP_CLAUSE_CHECK (NODE))->omp_clause.code
2049 #define OMP_CLAUSE_SET_CODE(NODE, CODE) \
2050 ((OMP_CLAUSE_CHECK (NODE))->omp_clause.code = (CODE))
2052 #define OMP_CLAUSE_CODE(NODE) \
2053 (OMP_CLAUSE_CHECK (NODE))->omp_clause.code
2055 #define OMP_CLAUSE_OPERAND(NODE, I) \
2056 OMP_CLAUSE_ELT_CHECK (NODE, I)
2058 struct GTY(()) tree_omp_clause {
2059 struct tree_common common;
2061 enum omp_clause_code code;
2062 union omp_clause_subcode {
2063 enum omp_clause_default_kind default_kind;
2064 enum omp_clause_schedule_kind schedule_kind;
2065 enum tree_code reduction_code;
2066 } GTY ((skip)) subcode;
2068 /* The gimplification of OMP_CLAUSE_REDUCTION_{INIT,MERGE} for omp-low's
2070 gimple_seq gimple_reduction_init;
2071 gimple_seq gimple_reduction_merge;
2073 tree GTY ((length ("omp_clause_num_ops[OMP_CLAUSE_CODE ((tree)&%h)]"))) ops[1];
2077 /* In a BLOCK node. */
2078 #define BLOCK_VARS(NODE) (BLOCK_CHECK (NODE)->block.vars)
2079 #define BLOCK_NONLOCALIZED_VARS(NODE) \
2080 (BLOCK_CHECK (NODE)->block.nonlocalized_vars)
2081 #define BLOCK_NUM_NONLOCALIZED_VARS(NODE) \
2082 VEC_length (tree, BLOCK_NONLOCALIZED_VARS (NODE))
2083 #define BLOCK_NONLOCALIZED_VAR(NODE,N) \
2084 VEC_index (tree, BLOCK_NONLOCALIZED_VARS (NODE), N)
2085 #define BLOCK_SUBBLOCKS(NODE) (BLOCK_CHECK (NODE)->block.subblocks)
2086 #define BLOCK_SUPERCONTEXT(NODE) (BLOCK_CHECK (NODE)->block.supercontext)
2087 #define BLOCK_CHAIN(NODE) (BLOCK_CHECK (NODE)->block.chain)
2088 #define BLOCK_ABSTRACT_ORIGIN(NODE) (BLOCK_CHECK (NODE)->block.abstract_origin)
2089 #define BLOCK_ABSTRACT(NODE) (BLOCK_CHECK (NODE)->block.abstract_flag)
2091 /* An index number for this block. These values are not guaranteed to
2092 be unique across functions -- whether or not they are depends on
2093 the debugging output format in use. */
2094 #define BLOCK_NUMBER(NODE) (BLOCK_CHECK (NODE)->block.block_num)
2096 /* If block reordering splits a lexical block into discontiguous
2097 address ranges, we'll make a copy of the original block.
2099 Note that this is logically distinct from BLOCK_ABSTRACT_ORIGIN.
2100 In that case, we have one source block that has been replicated
2101 (through inlining or unrolling) into many logical blocks, and that
2102 these logical blocks have different physical variables in them.
2104 In this case, we have one logical block split into several
2105 non-contiguous address ranges. Most debug formats can't actually
2106 represent this idea directly, so we fake it by creating multiple
2107 logical blocks with the same variables in them. However, for those
2108 that do support non-contiguous regions, these allow the original
2109 logical block to be reconstructed, along with the set of address
2112 One of the logical block fragments is arbitrarily chosen to be
2113 the ORIGIN. The other fragments will point to the origin via
2114 BLOCK_FRAGMENT_ORIGIN; the origin itself will have this pointer
2115 be null. The list of fragments will be chained through
2116 BLOCK_FRAGMENT_CHAIN from the origin. */
2118 #define BLOCK_FRAGMENT_ORIGIN(NODE) (BLOCK_CHECK (NODE)->block.fragment_origin)
2119 #define BLOCK_FRAGMENT_CHAIN(NODE) (BLOCK_CHECK (NODE)->block.fragment_chain)
2121 /* For an inlined function, this gives the location where it was called
2122 from. This is only set in the top level block, which corresponds to the
2123 inlined function scope. This is used in the debug output routines. */
2125 #define BLOCK_SOURCE_LOCATION(NODE) (BLOCK_CHECK (NODE)->block.locus)
2127 struct GTY(()) tree_block {
2128 struct tree_base base;
2131 unsigned abstract_flag : 1;
2132 unsigned block_num : 31;
2137 VEC(tree,gc) *nonlocalized_vars;
2141 tree abstract_origin;
2142 tree fragment_origin;
2143 tree fragment_chain;
2146 /* Define fields and accessors for nodes representing data types. */
2148 /* See tree.def for documentation of the use of these fields.
2149 Look at the documentation of the various ..._TYPE tree codes.
2151 Note that the type.values, type.minval, and type.maxval fields are
2152 overloaded and used for different macros in different kinds of types.
2153 Each macro must check to ensure the tree node is of the proper kind of
2154 type. Note also that some of the front-ends also overload these fields,
2155 so they must be checked as well. */
2157 #define TYPE_UID(NODE) (TYPE_CHECK (NODE)->type_common.uid)
2158 #define TYPE_SIZE(NODE) (TYPE_CHECK (NODE)->type_common.size)
2159 #define TYPE_SIZE_UNIT(NODE) (TYPE_CHECK (NODE)->type_common.size_unit)
2160 #define TYPE_POINTER_TO(NODE) (TYPE_CHECK (NODE)->type_common.pointer_to)
2161 #define TYPE_REFERENCE_TO(NODE) (TYPE_CHECK (NODE)->type_common.reference_to)
2162 #define TYPE_PRECISION(NODE) (TYPE_CHECK (NODE)->type_common.precision)
2163 #define TYPE_NAME(NODE) (TYPE_CHECK (NODE)->type_common.name)
2164 #define TYPE_NEXT_VARIANT(NODE) (TYPE_CHECK (NODE)->type_common.next_variant)
2165 #define TYPE_MAIN_VARIANT(NODE) (TYPE_CHECK (NODE)->type_common.main_variant)
2166 #define TYPE_CONTEXT(NODE) (TYPE_CHECK (NODE)->type_common.context)
2168 /* Vector types need to check target flags to determine type. */
2169 extern enum machine_mode vector_type_mode (const_tree);
2170 #define TYPE_MODE(NODE) \
2171 (TREE_CODE (TYPE_CHECK (NODE)) == VECTOR_TYPE \
2172 ? vector_type_mode (NODE) : (NODE)->type_common.mode)
2173 #define SET_TYPE_MODE(NODE, MODE) \
2174 (TYPE_CHECK (NODE)->type_common.mode = (MODE))
2176 /* The "canonical" type for this type node, which is used by frontends to
2177 compare the type for equality with another type. If two types are
2178 equal (based on the semantics of the language), then they will have
2179 equivalent TYPE_CANONICAL entries.
2181 As a special case, if TYPE_CANONICAL is NULL_TREE, and thus
2182 TYPE_STRUCTURAL_EQUALITY_P is true, then it cannot
2183 be used for comparison against other types. Instead, the type is
2184 said to require structural equality checks, described in
2185 TYPE_STRUCTURAL_EQUALITY_P.
2187 For unqualified aggregate and function types the middle-end relies on
2188 TYPE_CANONICAL to tell whether two variables can be assigned
2189 to each other without a conversion. The middle-end also makes sure
2190 to assign the same alias-sets to the type partition with equal
2191 TYPE_CANONICAL of their unqualified variants. */
2192 #define TYPE_CANONICAL(NODE) (TYPE_CHECK (NODE)->type_common.canonical)
2193 /* Indicates that the type node requires structural equality
2194 checks. The compiler will need to look at the composition of the
2195 type to determine whether it is equal to another type, rather than
2196 just comparing canonical type pointers. For instance, we would need
2197 to look at the return and parameter types of a FUNCTION_TYPE
2199 #define TYPE_STRUCTURAL_EQUALITY_P(NODE) (TYPE_CANONICAL (NODE) == NULL_TREE)
2200 /* Sets the TYPE_CANONICAL field to NULL_TREE, indicating that the
2201 type node requires structural equality. */
2202 #define SET_TYPE_STRUCTURAL_EQUALITY(NODE) (TYPE_CANONICAL (NODE) = NULL_TREE)
2204 #define TYPE_IBIT(NODE) (GET_MODE_IBIT (TYPE_MODE (NODE)))
2205 #define TYPE_FBIT(NODE) (GET_MODE_FBIT (TYPE_MODE (NODE)))
2207 /* The (language-specific) typed-based alias set for this type.
2208 Objects whose TYPE_ALIAS_SETs are different cannot alias each
2209 other. If the TYPE_ALIAS_SET is -1, no alias set has yet been
2210 assigned to this type. If the TYPE_ALIAS_SET is 0, objects of this
2211 type can alias objects of any type. */
2212 #define TYPE_ALIAS_SET(NODE) (TYPE_CHECK (NODE)->type_common.alias_set)
2214 /* Nonzero iff the typed-based alias set for this type has been
2216 #define TYPE_ALIAS_SET_KNOWN_P(NODE) \
2217 (TYPE_CHECK (NODE)->type_common.alias_set != -1)
2219 /* A TREE_LIST of IDENTIFIER nodes of the attributes that apply
2221 #define TYPE_ATTRIBUTES(NODE) (TYPE_CHECK (NODE)->type_common.attributes)
2223 /* The alignment necessary for objects of this type.
2224 The value is an int, measured in bits. */
2225 #define TYPE_ALIGN(NODE) (TYPE_CHECK (NODE)->type_common.align)
2227 /* 1 if the alignment for this type was requested by "aligned" attribute,
2228 0 if it is the default for this type. */
2229 #define TYPE_USER_ALIGN(NODE) (TYPE_CHECK (NODE)->base.user_align)
2231 /* The alignment for NODE, in bytes. */
2232 #define TYPE_ALIGN_UNIT(NODE) (TYPE_ALIGN (NODE) / BITS_PER_UNIT)
2234 /* If your language allows you to declare types, and you want debug info
2235 for them, then you need to generate corresponding TYPE_DECL nodes.
2236 These "stub" TYPE_DECL nodes have no name, and simply point at the
2237 type node. You then set the TYPE_STUB_DECL field of the type node
2238 to point back at the TYPE_DECL node. This allows the debug routines
2239 to know that the two nodes represent the same type, so that we only
2240 get one debug info record for them. */
2241 #define TYPE_STUB_DECL(NODE) (TREE_CHAIN (TYPE_CHECK (NODE)))
2243 /* In a RECORD_TYPE, UNION_TYPE or QUAL_UNION_TYPE, it means the type
2244 has BLKmode only because it lacks the alignment requirement for
2246 #define TYPE_NO_FORCE_BLK(NODE) \
2247 (TYPE_CHECK (NODE)->type_common.no_force_blk_flag)
2249 /* In an INTEGER_TYPE, it means the type represents a size. We use
2250 this both for validity checking and to permit optimizations that
2251 are unsafe for other types. Note that the C `size_t' type should
2252 *not* have this flag set. The `size_t' type is simply a typedef
2253 for an ordinary integer type that happens to be the type of an
2254 expression returned by `sizeof'; `size_t' has no special
2255 properties. Expressions whose type have TYPE_IS_SIZETYPE set are
2256 always actual sizes. */
2257 #define TYPE_IS_SIZETYPE(NODE) \
2258 (INTEGER_TYPE_CHECK (NODE)->type_common.no_force_blk_flag)
2260 /* Nonzero in a type considered volatile as a whole. */
2261 #define TYPE_VOLATILE(NODE) (TYPE_CHECK (NODE)->base.volatile_flag)
2263 /* Means this type is const-qualified. */
2264 #define TYPE_READONLY(NODE) (TYPE_CHECK (NODE)->base.readonly_flag)
2266 /* If nonzero, this type is `restrict'-qualified, in the C sense of
2268 #define TYPE_RESTRICT(NODE) (TYPE_CHECK (NODE)->type_common.restrict_flag)
2270 /* If nonzero, type's name shouldn't be emitted into debug info. */
2271 #define TYPE_NAMELESS(NODE) (TYPE_CHECK (NODE)->base.nameless_flag)
2273 /* The address space the type is in. */
2274 #define TYPE_ADDR_SPACE(NODE) (TYPE_CHECK (NODE)->base.address_space)
2276 /* There is a TYPE_QUAL value for each type qualifier. They can be
2277 combined by bitwise-or to form the complete set of qualifiers for a
2281 TYPE_UNQUALIFIED = 0x0,
2282 TYPE_QUAL_CONST = 0x1,
2283 TYPE_QUAL_VOLATILE = 0x2,
2284 TYPE_QUAL_RESTRICT = 0x4
2287 /* Encode/decode the named memory support as part of the qualifier. If more
2288 than 8 qualifiers are added, these macros need to be adjusted. */
2289 #define ENCODE_QUAL_ADDR_SPACE(NUM) ((NUM & 0xFF) << 8)
2290 #define DECODE_QUAL_ADDR_SPACE(X) (((X) >> 8) & 0xFF)
2292 /* Return all qualifiers except for the address space qualifiers. */
2293 #define CLEAR_QUAL_ADDR_SPACE(X) ((X) & ~0xFF00)
2295 /* Only keep the address space out of the qualifiers and discard the other
2297 #define KEEP_QUAL_ADDR_SPACE(X) ((X) & 0xFF00)
2299 /* The set of type qualifiers for this type. */
2300 #define TYPE_QUALS(NODE) \
2301 ((TYPE_READONLY (NODE) * TYPE_QUAL_CONST) \
2302 | (TYPE_VOLATILE (NODE) * TYPE_QUAL_VOLATILE) \
2303 | (TYPE_RESTRICT (NODE) * TYPE_QUAL_RESTRICT) \
2304 | (ENCODE_QUAL_ADDR_SPACE (TYPE_ADDR_SPACE (NODE))))
2306 /* The same as TYPE_QUALS without the address space qualifications. */
2307 #define TYPE_QUALS_NO_ADDR_SPACE(NODE) \
2308 ((TYPE_READONLY (NODE) * TYPE_QUAL_CONST) \
2309 | (TYPE_VOLATILE (NODE) * TYPE_QUAL_VOLATILE) \
2310 | (TYPE_RESTRICT (NODE) * TYPE_QUAL_RESTRICT))
2312 /* These flags are available for each language front end to use internally. */
2313 #define TYPE_LANG_FLAG_0(NODE) (TYPE_CHECK (NODE)->type_common.lang_flag_0)
2314 #define TYPE_LANG_FLAG_1(NODE) (TYPE_CHECK (NODE)->type_common.lang_flag_1)
2315 #define TYPE_LANG_FLAG_2(NODE) (TYPE_CHECK (NODE)->type_common.lang_flag_2)
2316 #define TYPE_LANG_FLAG_3(NODE) (TYPE_CHECK (NODE)->type_common.lang_flag_3)
2317 #define TYPE_LANG_FLAG_4(NODE) (TYPE_CHECK (NODE)->type_common.lang_flag_4)
2318 #define TYPE_LANG_FLAG_5(NODE) (TYPE_CHECK (NODE)->type_common.lang_flag_5)
2319 #define TYPE_LANG_FLAG_6(NODE) (TYPE_CHECK (NODE)->type_common.lang_flag_6)
2321 /* Used to keep track of visited nodes in tree traversals. This is set to
2322 0 by copy_node and make_node. */
2323 #define TREE_VISITED(NODE) ((NODE)->base.visited)
2325 /* If set in an ARRAY_TYPE, indicates a string type (for languages
2326 that distinguish string from array of char).
2327 If set in a INTEGER_TYPE, indicates a character type. */
2328 #define TYPE_STRING_FLAG(NODE) (TYPE_CHECK (NODE)->type_common.string_flag)
2330 /* For a VECTOR_TYPE, this is the number of sub-parts of the vector. */
2331 #define TYPE_VECTOR_SUBPARTS(VECTOR_TYPE) \
2332 (((unsigned HOST_WIDE_INT) 1) \
2333 << VECTOR_TYPE_CHECK (VECTOR_TYPE)->type_common.precision)
2335 /* Set precision to n when we have 2^n sub-parts of the vector. */
2336 #define SET_TYPE_VECTOR_SUBPARTS(VECTOR_TYPE, X) \
2337 (VECTOR_TYPE_CHECK (VECTOR_TYPE)->type_common.precision = exact_log2 (X))
2339 /* Nonzero in a VECTOR_TYPE if the frontends should not emit warnings
2340 about missing conversions to other vector types of the same size. */
2341 #define TYPE_VECTOR_OPAQUE(NODE) \
2342 (VECTOR_TYPE_CHECK (NODE)->base.default_def_flag)
2344 /* Indicates that objects of this type must be initialized by calling a
2345 function when they are created. */
2346 #define TYPE_NEEDS_CONSTRUCTING(NODE) \
2347 (TYPE_CHECK (NODE)->type_common.needs_constructing_flag)
2349 /* Indicates that a UNION_TYPE object should be passed the same way that
2350 the first union alternative would be passed, or that a RECORD_TYPE
2351 object should be passed the same way that the first (and only) member
2353 #define TYPE_TRANSPARENT_AGGR(NODE) \
2354 (RECORD_OR_UNION_CHECK (NODE)->type_common.transparent_aggr_flag)
2356 /* For an ARRAY_TYPE, indicates that it is not permitted to take the
2357 address of a component of the type. This is the counterpart of
2358 DECL_NONADDRESSABLE_P for arrays, see the definition of this flag. */
2359 #define TYPE_NONALIASED_COMPONENT(NODE) \
2360 (ARRAY_TYPE_CHECK (NODE)->type_common.transparent_aggr_flag)
2362 /* Indicated that objects of this type should be laid out in as
2363 compact a way as possible. */
2364 #define TYPE_PACKED(NODE) (TYPE_CHECK (NODE)->base.packed_flag)
2366 /* Used by type_contains_placeholder_p to avoid recomputation.
2367 Values are: 0 (unknown), 1 (false), 2 (true). Never access
2368 this field directly. */
2369 #define TYPE_CONTAINS_PLACEHOLDER_INTERNAL(NODE) \
2370 (TYPE_CHECK (NODE)->type_common.contains_placeholder_bits)
2372 /* The debug output functions use the symtab union field to store
2373 information specific to the debugging format. The different debug
2374 output hooks store different types in the union field. These three
2375 macros are used to access different fields in the union. The debug
2376 hooks are responsible for consistently using only a specific
2379 /* Symtab field as an integer. Used by stabs generator in dbxout.c to
2380 hold the type's number in the generated stabs. */
2381 #define TYPE_SYMTAB_ADDRESS(NODE) \
2382 (TYPE_CHECK (NODE)->type_common.symtab.address)
2384 /* Symtab field as a string. Used by COFF generator in sdbout.c to
2385 hold struct/union type tag names. */
2386 #define TYPE_SYMTAB_POINTER(NODE) \
2387 (TYPE_CHECK (NODE)->type_common.symtab.pointer)
2389 /* Symtab field as a pointer to a DWARF DIE. Used by DWARF generator
2390 in dwarf2out.c to point to the DIE generated for the type. */
2391 #define TYPE_SYMTAB_DIE(NODE) \
2392 (TYPE_CHECK (NODE)->type_common.symtab.die)
2394 /* The garbage collector needs to know the interpretation of the
2395 symtab field. These constants represent the different types in the
2398 #define TYPE_SYMTAB_IS_ADDRESS (0)
2399 #define TYPE_SYMTAB_IS_POINTER (1)
2400 #define TYPE_SYMTAB_IS_DIE (2)
2404 struct GTY(()) tree_type_common {
2405 struct tree_common common;
2411 unsigned int precision : 10;
2412 unsigned no_force_blk_flag : 1;
2413 unsigned needs_constructing_flag : 1;
2414 unsigned transparent_aggr_flag : 1;
2415 unsigned restrict_flag : 1;
2416 unsigned contains_placeholder_bits : 2;
2418 ENUM_BITFIELD(machine_mode) mode : 8;
2420 unsigned string_flag : 1;
2421 unsigned lang_flag_0 : 1;
2422 unsigned lang_flag_1 : 1;
2423 unsigned lang_flag_2 : 1;
2424 unsigned lang_flag_3 : 1;
2425 unsigned lang_flag_4 : 1;
2426 unsigned lang_flag_5 : 1;
2427 unsigned lang_flag_6 : 1;
2430 alias_set_type alias_set;
2433 union tree_type_symtab {
2434 int GTY ((tag ("TYPE_SYMTAB_IS_ADDRESS"))) address;
2435 const char * GTY ((tag ("TYPE_SYMTAB_IS_POINTER"))) pointer;
2436 struct die_struct * GTY ((tag ("TYPE_SYMTAB_IS_DIE"))) die;
2437 } GTY ((desc ("debug_hooks->tree_type_symtab_field"))) symtab;
2445 #define TYPE_LANG_SPECIFIC(NODE) \
2446 (TYPE_CHECK (NODE)->type_with_lang_specific.lang_specific)
2448 struct GTY(()) tree_type_with_lang_specific {
2449 struct tree_type_common common;
2450 /* Points to a structure whose details depend on the language in use. */
2451 struct lang_type *lang_specific;
2454 #define TYPE_VALUES(NODE) (ENUMERAL_TYPE_CHECK (NODE)->type_non_common.values)
2455 #define TYPE_DOMAIN(NODE) (ARRAY_TYPE_CHECK (NODE)->type_non_common.values)
2456 #define TYPE_FIELDS(NODE) \
2457 (RECORD_OR_UNION_CHECK (NODE)->type_non_common.values)
2458 #define TYPE_CACHED_VALUES(NODE) (TYPE_CHECK(NODE)->type_non_common.values)
2459 #define TYPE_ARG_TYPES(NODE) \
2460 (FUNC_OR_METHOD_CHECK (NODE)->type_non_common.values)
2461 #define TYPE_VALUES_RAW(NODE) (TYPE_CHECK(NODE)->type_non_common.values)
2463 #define TYPE_METHODS(NODE) \
2464 (RECORD_OR_UNION_CHECK (NODE)->type_non_common.maxval)
2465 #define TYPE_VFIELD(NODE) \
2466 (RECORD_OR_UNION_CHECK (NODE)->type_non_common.minval)
2467 #define TYPE_METHOD_BASETYPE(NODE) \
2468 (FUNC_OR_METHOD_CHECK (NODE)->type_non_common.maxval)
2469 #define TYPE_OFFSET_BASETYPE(NODE) \
2470 (OFFSET_TYPE_CHECK (NODE)->type_non_common.maxval)
2471 #define TYPE_MAXVAL(NODE) (TYPE_CHECK (NODE)->type_non_common.maxval)
2472 #define TYPE_MINVAL(NODE) (TYPE_CHECK (NODE)->type_non_common.minval)
2473 #define TYPE_NEXT_PTR_TO(NODE) \
2474 (POINTER_TYPE_CHECK (NODE)->type_non_common.minval)
2475 #define TYPE_NEXT_REF_TO(NODE) \
2476 (REFERENCE_TYPE_CHECK (NODE)->type_non_common.minval)
2477 #define TYPE_MIN_VALUE(NODE) \
2478 (NUMERICAL_TYPE_CHECK (NODE)->type_non_common.minval)
2479 #define TYPE_MAX_VALUE(NODE) \
2480 (NUMERICAL_TYPE_CHECK (NODE)->type_non_common.maxval)
2482 /* If non-NULL, this is an upper bound of the size (in bytes) of an
2483 object of the given ARRAY_TYPE_NON_COMMON. This allows temporaries to be
2485 #define TYPE_ARRAY_MAX_SIZE(ARRAY_TYPE) \
2486 (ARRAY_TYPE_CHECK (ARRAY_TYPE)->type_non_common.maxval)
2488 /* For record and union types, information about this type, as a base type
2490 #define TYPE_BINFO(NODE) (RECORD_OR_UNION_CHECK(NODE)->type_non_common.binfo)
2492 /* For non record and union types, used in a language-dependent way. */
2493 #define TYPE_LANG_SLOT_1(NODE) \
2494 (NOT_RECORD_OR_UNION_CHECK(NODE)->type_non_common.binfo)
2496 struct GTY(()) tree_type_non_common {
2497 struct tree_type_with_lang_specific with_lang_specific;
2504 /* Define accessor macros for information about type inheritance
2507 A "basetype" means a particular usage of a data type for inheritance
2508 in another type. Each such basetype usage has its own "binfo"
2509 object to describe it. The binfo object is a TREE_VEC node.
2511 Inheritance is represented by the binfo nodes allocated for a
2512 given type. For example, given types C and D, such that D is
2513 inherited by C, 3 binfo nodes will be allocated: one for describing
2514 the binfo properties of C, similarly one for D, and one for
2515 describing the binfo properties of D as a base type for C.
2516 Thus, given a pointer to class C, one can get a pointer to the binfo
2517 of D acting as a basetype for C by looking at C's binfo's basetypes. */
2519 /* BINFO specific flags. */
2521 /* Nonzero means that the derivation chain is via a `virtual' declaration. */
2522 #define BINFO_VIRTUAL_P(NODE) (TREE_BINFO_CHECK (NODE)->base.static_flag)
2524 /* Flags for language dependent use. */
2525 #define BINFO_MARKED(NODE) TREE_LANG_FLAG_0(TREE_BINFO_CHECK(NODE))
2526 #define BINFO_FLAG_1(NODE) TREE_LANG_FLAG_1(TREE_BINFO_CHECK(NODE))
2527 #define BINFO_FLAG_2(NODE) TREE_LANG_FLAG_2(TREE_BINFO_CHECK(NODE))
2528 #define BINFO_FLAG_3(NODE) TREE_LANG_FLAG_3(TREE_BINFO_CHECK(NODE))
2529 #define BINFO_FLAG_4(NODE) TREE_LANG_FLAG_4(TREE_BINFO_CHECK(NODE))
2530 #define BINFO_FLAG_5(NODE) TREE_LANG_FLAG_5(TREE_BINFO_CHECK(NODE))
2531 #define BINFO_FLAG_6(NODE) TREE_LANG_FLAG_6(TREE_BINFO_CHECK(NODE))
2533 /* The actual data type node being inherited in this basetype. */
2534 #define BINFO_TYPE(NODE) TREE_TYPE (TREE_BINFO_CHECK(NODE))
2536 /* The offset where this basetype appears in its containing type.
2537 BINFO_OFFSET slot holds the offset (in bytes)
2538 from the base of the complete object to the base of the part of the
2539 object that is allocated on behalf of this `type'.
2540 This is always 0 except when there is multiple inheritance. */
2542 #define BINFO_OFFSET(NODE) (TREE_BINFO_CHECK(NODE)->binfo.offset)
2543 #define BINFO_OFFSET_ZEROP(NODE) (integer_zerop (BINFO_OFFSET (NODE)))
2545 /* The virtual function table belonging to this basetype. Virtual
2546 function tables provide a mechanism for run-time method dispatching.
2547 The entries of a virtual function table are language-dependent. */
2549 #define BINFO_VTABLE(NODE) (TREE_BINFO_CHECK(NODE)->binfo.vtable)
2551 /* The virtual functions in the virtual function table. This is
2552 a TREE_LIST that is used as an initial approximation for building
2553 a virtual function table for this basetype. */
2554 #define BINFO_VIRTUALS(NODE) (TREE_BINFO_CHECK(NODE)->binfo.virtuals)
2556 /* A vector of binfos for the direct basetypes inherited by this
2559 If this basetype describes type D as inherited in C, and if the
2560 basetypes of D are E and F, then this vector contains binfos for
2561 inheritance of E and F by C. */
2562 #define BINFO_BASE_BINFOS(NODE) (&TREE_BINFO_CHECK(NODE)->binfo.base_binfos)
2564 /* The number of basetypes for NODE. */
2565 #define BINFO_N_BASE_BINFOS(NODE) (VEC_length (tree, BINFO_BASE_BINFOS (NODE)))
2567 /* Accessor macro to get to the Nth base binfo of this binfo. */
2568 #define BINFO_BASE_BINFO(NODE,N) \
2569 (VEC_index (tree, BINFO_BASE_BINFOS (NODE), (N)))
2570 #define BINFO_BASE_ITERATE(NODE,N,B) \
2571 (VEC_iterate (tree, BINFO_BASE_BINFOS (NODE), (N), (B)))
2572 #define BINFO_BASE_APPEND(NODE,T) \
2573 (VEC_quick_push (tree, BINFO_BASE_BINFOS (NODE), (T)))
2575 /* For a BINFO record describing a virtual base class, i.e., one where
2576 TREE_VIA_VIRTUAL is set, this field assists in locating the virtual
2577 base. The actual contents are language-dependent. In the C++
2578 front-end this field is an INTEGER_CST giving an offset into the
2579 vtable where the offset to the virtual base can be found. */
2580 #define BINFO_VPTR_FIELD(NODE) (TREE_BINFO_CHECK(NODE)->binfo.vptr_field)
2582 /* Indicates the accesses this binfo has to its bases. The values are
2583 access_public_node, access_protected_node or access_private_node.
2584 If this array is not present, public access is implied. */
2585 #define BINFO_BASE_ACCESSES(NODE) (TREE_BINFO_CHECK(NODE)->binfo.base_accesses)
2587 #define BINFO_BASE_ACCESS(NODE,N) \
2588 VEC_index (tree, BINFO_BASE_ACCESSES (NODE), (N))
2589 #define BINFO_BASE_ACCESS_APPEND(NODE,T) \
2590 VEC_quick_push (tree, BINFO_BASE_ACCESSES (NODE), (T))
2592 /* The index in the VTT where this subobject's sub-VTT can be found.
2593 NULL_TREE if there is no sub-VTT. */
2594 #define BINFO_SUBVTT_INDEX(NODE) (TREE_BINFO_CHECK(NODE)->binfo.vtt_subvtt)
2596 /* The index in the VTT where the vptr for this subobject can be
2597 found. NULL_TREE if there is no secondary vptr in the VTT. */
2598 #define BINFO_VPTR_INDEX(NODE) (TREE_BINFO_CHECK(NODE)->binfo.vtt_vptr)
2600 /* The BINFO_INHERITANCE_CHAIN points at the binfo for the base
2601 inheriting this base for non-virtual bases. For virtual bases it
2602 points either to the binfo for which this is a primary binfo, or to
2603 the binfo of the most derived type. */
2604 #define BINFO_INHERITANCE_CHAIN(NODE) \
2605 (TREE_BINFO_CHECK(NODE)->binfo.inheritance)
2607 struct GTY (()) tree_binfo {
2608 struct tree_common common;
2614 VEC(tree,gc) *base_accesses;
2620 VEC(tree,none) base_binfos;
2624 /* Define fields and accessors for nodes representing declared names. */
2626 /* Nonzero if DECL represents a variable for the SSA passes. */
2627 #define SSA_VAR_P(DECL) \
2628 (TREE_CODE (DECL) == VAR_DECL \
2629 || TREE_CODE (DECL) == PARM_DECL \
2630 || TREE_CODE (DECL) == RESULT_DECL \
2631 || (TREE_CODE (DECL) == SSA_NAME \
2632 && (TREE_CODE (SSA_NAME_VAR (DECL)) == VAR_DECL \
2633 || TREE_CODE (SSA_NAME_VAR (DECL)) == PARM_DECL \
2634 || TREE_CODE (SSA_NAME_VAR (DECL)) == RESULT_DECL)))
2639 /* Enumerate visibility settings. */
2640 #ifndef SYMBOL_VISIBILITY_DEFINED
2641 #define SYMBOL_VISIBILITY_DEFINED
2642 enum symbol_visibility
2645 VISIBILITY_PROTECTED,
2653 #define DECL_CHAIN(NODE) (TREE_CHAIN (DECL_MINIMAL_CHECK (NODE)))
2655 /* This is the name of the object as written by the user.
2656 It is an IDENTIFIER_NODE. */
2657 #define DECL_NAME(NODE) (DECL_MINIMAL_CHECK (NODE)->decl_minimal.name)
2659 /* Every ..._DECL node gets a unique number. */
2660 #define DECL_UID(NODE) (DECL_MINIMAL_CHECK (NODE)->decl_minimal.uid)
2662 /* DEBUG_EXPR_DECLs get negative UID numbers, to catch erroneous
2664 #define DEBUG_TEMP_UID(NODE) (-DECL_UID (TREE_CHECK ((NODE), DEBUG_EXPR_DECL)))
2666 /* Every ..._DECL node gets a unique number that stays the same even
2667 when the decl is copied by the inliner once it is set. */
2668 #define DECL_PT_UID(NODE) \
2669 (DECL_COMMON_CHECK (NODE)->decl_common.pt_uid == -1u \
2670 ? (NODE)->decl_minimal.uid : (NODE)->decl_common.pt_uid)
2671 /* Initialize the ..._DECL node pt-uid to the decls uid. */
2672 #define SET_DECL_PT_UID(NODE, UID) \
2673 (DECL_COMMON_CHECK (NODE)->decl_common.pt_uid = (UID))
2674 /* Whether the ..._DECL node pt-uid has been initialized and thus needs to
2675 be preserved when copyin the decl. */
2676 #define DECL_PT_UID_SET_P(NODE) \
2677 (DECL_COMMON_CHECK (NODE)->decl_common.pt_uid != -1u)
2679 /* These two fields describe where in the source code the declaration
2680 was. If the declaration appears in several places (as for a C
2681 function that is declared first and then defined later), this
2682 information should refer to the definition. */
2683 #define DECL_SOURCE_LOCATION(NODE) \
2684 (DECL_MINIMAL_CHECK (NODE)->decl_minimal.locus)
2685 #define DECL_SOURCE_FILE(NODE) LOCATION_FILE (DECL_SOURCE_LOCATION (NODE))
2686 #define DECL_SOURCE_LINE(NODE) LOCATION_LINE (DECL_SOURCE_LOCATION (NODE))
2687 #define DECL_IS_BUILTIN(DECL) \
2688 (DECL_SOURCE_LOCATION (DECL) <= BUILTINS_LOCATION)
2690 /* For FIELD_DECLs, this is the RECORD_TYPE, UNION_TYPE, or
2691 QUAL_UNION_TYPE node that the field is a member of. For VAR_DECL,
2692 PARM_DECL, FUNCTION_DECL, LABEL_DECL, RESULT_DECL, and CONST_DECL
2693 nodes, this points to either the FUNCTION_DECL for the containing
2694 function, the RECORD_TYPE or UNION_TYPE for the containing type, or
2695 NULL_TREE or a TRANSLATION_UNIT_DECL if the given decl has "file
2696 scope". In particular, for VAR_DECLs which are virtual table pointers
2697 (they have DECL_VIRTUAL set), we use DECL_CONTEXT to determine the type
2699 #define DECL_CONTEXT(NODE) (DECL_MINIMAL_CHECK (NODE)->decl_minimal.context)
2700 #define DECL_FIELD_CONTEXT(NODE) \
2701 (FIELD_DECL_CHECK (NODE)->decl_minimal.context)
2703 /* If nonzero, decl's name shouldn't be emitted into debug info. */
2704 #define DECL_NAMELESS(NODE) (DECL_MINIMAL_CHECK (NODE)->base.nameless_flag)
2706 struct GTY(()) tree_decl_minimal {
2707 struct tree_common common;
2715 /* For any sort of a ..._DECL node, this points to the original (abstract)
2716 decl node which this decl is an inlined/cloned instance of, or else it
2717 is NULL indicating that this decl is not an instance of some other decl.
2719 The C front-end also uses this in a nested declaration of an inline
2720 function, to point back to the definition. */
2721 #define DECL_ABSTRACT_ORIGIN(NODE) \
2722 (DECL_COMMON_CHECK (NODE)->decl_common.abstract_origin)
2724 /* Like DECL_ABSTRACT_ORIGIN, but returns NODE if there's no abstract
2725 origin. This is useful when setting the DECL_ABSTRACT_ORIGIN. */
2726 #define DECL_ORIGIN(NODE) \
2727 (DECL_ABSTRACT_ORIGIN (NODE) ? DECL_ABSTRACT_ORIGIN (NODE) : (NODE))
2729 /* Nonzero for any sort of ..._DECL node means this decl node represents an
2730 inline instance of some original (abstract) decl from an inline function;
2731 suppress any warnings about shadowing some other variable. FUNCTION_DECL
2732 nodes can also have their abstract origin set to themselves. */
2733 #define DECL_FROM_INLINE(NODE) \
2734 (DECL_ABSTRACT_ORIGIN (NODE) != NULL_TREE \
2735 && DECL_ABSTRACT_ORIGIN (NODE) != (NODE))
2737 /* In a DECL this is the field where attributes are stored. */
2738 #define DECL_ATTRIBUTES(NODE) \
2739 (DECL_COMMON_CHECK (NODE)->decl_common.attributes)
2741 /* For a FUNCTION_DECL, holds the tree of BINDINGs.
2742 For a TRANSLATION_UNIT_DECL, holds the namespace's BLOCK.
2743 For a VAR_DECL, holds the initial value.
2744 For a PARM_DECL, used for DECL_ARG_TYPE--default
2745 values for parameters are encoded in the type of the function,
2746 not in the PARM_DECL slot.
2747 For a FIELD_DECL, this is used for enumeration values and the C
2748 frontend uses it for temporarily storing bitwidth of bitfields.
2750 ??? Need to figure out some way to check this isn't a PARM_DECL. */
2751 #define DECL_INITIAL(NODE) (DECL_COMMON_CHECK (NODE)->decl_common.initial)
2753 /* Holds the size of the datum, in bits, as a tree expression.
2754 Need not be constant. */
2755 #define DECL_SIZE(NODE) (DECL_COMMON_CHECK (NODE)->decl_common.size)
2756 /* Likewise for the size in bytes. */
2757 #define DECL_SIZE_UNIT(NODE) (DECL_COMMON_CHECK (NODE)->decl_common.size_unit)
2758 /* Holds the alignment required for the datum, in bits. */
2759 #define DECL_ALIGN(NODE) (DECL_COMMON_CHECK (NODE)->decl_common.align)
2760 /* The alignment of NODE, in bytes. */
2761 #define DECL_ALIGN_UNIT(NODE) (DECL_ALIGN (NODE) / BITS_PER_UNIT)
2762 /* Set if the alignment of this DECL has been set by the user, for
2763 example with an 'aligned' attribute. */
2764 #define DECL_USER_ALIGN(NODE) \
2765 (DECL_COMMON_CHECK (NODE)->base.user_align)
2766 /* Holds the machine mode corresponding to the declaration of a variable or
2767 field. Always equal to TYPE_MODE (TREE_TYPE (decl)) except for a
2769 #define DECL_MODE(NODE) (DECL_COMMON_CHECK (NODE)->decl_common.mode)
2771 /* For FUNCTION_DECL, if it is built-in, this identifies which built-in
2772 operation it is. Note, however, that this field is overloaded, with
2773 DECL_BUILT_IN_CLASS as the discriminant, so the latter must always be
2774 checked before any access to the former. */
2775 #define DECL_FUNCTION_CODE(NODE) \
2776 (FUNCTION_DECL_CHECK (NODE)->function_decl.function_code)
2777 #define DECL_DEBUG_EXPR_IS_FROM(NODE) \
2778 (DECL_COMMON_CHECK (NODE)->decl_common.debug_expr_is_from)
2780 #define DECL_FUNCTION_PERSONALITY(NODE) \
2781 (FUNCTION_DECL_CHECK (NODE)->function_decl.personality)
2783 /* Nonzero for a given ..._DECL node means that the name of this node should
2784 be ignored for symbolic debug purposes. For a TYPE_DECL, this means that
2785 the associated type should be ignored. For a FUNCTION_DECL, the body of
2786 the function should also be ignored. */
2787 #define DECL_IGNORED_P(NODE) \
2788 (DECL_COMMON_CHECK (NODE)->decl_common.ignored_flag)
2790 /* Nonzero for a given ..._DECL node means that this node represents an
2791 "abstract instance" of the given declaration (e.g. in the original
2792 declaration of an inline function). When generating symbolic debugging
2793 information, we mustn't try to generate any address information for nodes
2794 marked as "abstract instances" because we don't actually generate
2795 any code or allocate any data space for such instances. */
2796 #define DECL_ABSTRACT(NODE) \
2797 (DECL_COMMON_CHECK (NODE)->decl_common.abstract_flag)
2799 /* Language-specific decl information. */
2800 #define DECL_LANG_SPECIFIC(NODE) \
2801 (DECL_COMMON_CHECK (NODE)->decl_common.lang_specific)
2803 /* In a VAR_DECL or FUNCTION_DECL, nonzero means external reference:
2804 do not allocate storage, and refer to a definition elsewhere. Note that
2805 this does not necessarily imply the entity represented by NODE
2806 has no program source-level definition in this translation unit. For
2807 example, for a FUNCTION_DECL, DECL_SAVED_TREE may be non-NULL and
2808 DECL_EXTERNAL may be true simultaneously; that can be the case for
2809 a C99 "extern inline" function. */
2810 #define DECL_EXTERNAL(NODE) (DECL_COMMON_CHECK (NODE)->decl_common.decl_flag_1)
2812 /* Nonzero in a ..._DECL means this variable is ref'd from a nested function.
2813 For VAR_DECL nodes, PARM_DECL nodes, and FUNCTION_DECL nodes.
2815 For LABEL_DECL nodes, nonzero if nonlocal gotos to the label are permitted.
2817 Also set in some languages for variables, etc., outside the normal
2818 lexical scope, such as class instance variables. */
2819 #define DECL_NONLOCAL(NODE) \
2820 (DECL_COMMON_CHECK (NODE)->decl_common.nonlocal_flag)
2822 /* Used in VAR_DECLs to indicate that the variable is a vtable.
2823 Used in FIELD_DECLs for vtable pointers.
2824 Used in FUNCTION_DECLs to indicate that the function is virtual. */
2825 #define DECL_VIRTUAL_P(NODE) \
2826 (DECL_COMMON_CHECK (NODE)->decl_common.virtual_flag)
2828 /* Used to indicate that this DECL represents a compiler-generated entity. */
2829 #define DECL_ARTIFICIAL(NODE) \
2830 (DECL_COMMON_CHECK (NODE)->decl_common.artificial_flag)
2832 /* Additional flags for language-specific uses. */
2833 #define DECL_LANG_FLAG_0(NODE) \
2834 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_0)
2835 #define DECL_LANG_FLAG_1(NODE) \
2836 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_1)
2837 #define DECL_LANG_FLAG_2(NODE) \
2838 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_2)
2839 #define DECL_LANG_FLAG_3(NODE) \
2840 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_3)
2841 #define DECL_LANG_FLAG_4(NODE) \
2842 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_4)
2843 #define DECL_LANG_FLAG_5(NODE) \
2844 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_5)
2845 #define DECL_LANG_FLAG_6(NODE) \
2846 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_6)
2847 #define DECL_LANG_FLAG_7(NODE) \
2848 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_7)
2849 #define DECL_LANG_FLAG_8(NODE) \
2850 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_8)
2852 /* Nonzero for a scope which is equal to file scope. */
2853 #define SCOPE_FILE_SCOPE_P(EXP) \
2854 (! (EXP) || TREE_CODE (EXP) == TRANSLATION_UNIT_DECL)
2855 /* Nonzero for a decl which is at file scope. */
2856 #define DECL_FILE_SCOPE_P(EXP) SCOPE_FILE_SCOPE_P (DECL_CONTEXT (EXP))
2857 /* Nonzero for a type which is at file scope. */
2858 #define TYPE_FILE_SCOPE_P(EXP) SCOPE_FILE_SCOPE_P (TYPE_CONTEXT (EXP))
2860 /* Nonzero for a decl that is decorated using attribute used.
2861 This indicates to compiler tools that this decl needs to be preserved. */
2862 #define DECL_PRESERVE_P(DECL) \
2863 DECL_COMMON_CHECK (DECL)->decl_common.preserve_flag
2865 /* For function local variables of COMPLEX and VECTOR types,
2866 indicates that the variable is not aliased, and that all
2867 modifications to the variable have been adjusted so that
2868 they are killing assignments. Thus the variable may now
2869 be treated as a GIMPLE register, and use real instead of
2870 virtual ops in SSA form. */
2871 #define DECL_GIMPLE_REG_P(DECL) \
2872 DECL_COMMON_CHECK (DECL)->decl_common.gimple_reg_flag
2874 struct GTY(()) tree_decl_common {
2875 struct tree_decl_minimal common;
2878 ENUM_BITFIELD(machine_mode) mode : 8;
2880 unsigned nonlocal_flag : 1;
2881 unsigned virtual_flag : 1;
2882 unsigned ignored_flag : 1;
2883 unsigned abstract_flag : 1;
2884 unsigned artificial_flag : 1;
2885 unsigned preserve_flag: 1;
2886 unsigned debug_expr_is_from : 1;
2888 unsigned lang_flag_0 : 1;
2889 unsigned lang_flag_1 : 1;
2890 unsigned lang_flag_2 : 1;
2891 unsigned lang_flag_3 : 1;
2892 unsigned lang_flag_4 : 1;
2893 unsigned lang_flag_5 : 1;
2894 unsigned lang_flag_6 : 1;
2895 unsigned lang_flag_7 : 1;
2896 unsigned lang_flag_8 : 1;
2898 /* In LABEL_DECL, this is DECL_ERROR_ISSUED.
2899 In VAR_DECL and PARM_DECL, this is DECL_REGISTER. */
2900 unsigned decl_flag_0 : 1;
2901 /* In FIELD_DECL, this is DECL_BIT_FIELD
2902 In VAR_DECL and FUNCTION_DECL, this is DECL_EXTERNAL.
2903 In TYPE_DECL, this is TYPE_DECL_SUPPRESS_DEBUG. */
2904 unsigned decl_flag_1 : 1;
2905 /* In FIELD_DECL, this is DECL_NONADDRESSABLE_P
2906 In VAR_DECL, PARM_DECL and RESULT_DECL, this is
2907 DECL_HAS_VALUE_EXPR_P. */
2908 unsigned decl_flag_2 : 1;
2909 /* Logically, these two would go in a theoretical base shared by var and
2911 unsigned gimple_reg_flag : 1;
2912 /* In VAR_DECL, PARM_DECL and RESULT_DECL, this is DECL_BY_REFERENCE. */
2913 unsigned decl_by_reference_flag : 1;
2914 /* In VAR_DECL, PARM_DECL and RESULT_DECL, this is DECL_RESTRICTED_P. */
2915 unsigned decl_restricted_flag : 1;
2917 /* In VAR_DECL and PARM_DECL set when the decl has been used except for
2919 unsigned decl_read_flag : 1;
2921 /* In VAR_DECL or RESULT_DECL set when significant code movement precludes
2922 attempting to share the stack slot with some other variable. */
2923 unsigned decl_nonshareable_flag : 1;
2925 /* DECL_OFFSET_ALIGN, used only for FIELD_DECLs. */
2926 unsigned int off_align : 8;
2928 /* 24-bits unused. */
2930 /* DECL_ALIGN. It should have the same size as TYPE_ALIGN. */
2933 /* UID for points-to sets, stable over copying from inlining. */
2934 unsigned int pt_uid;
2939 tree abstract_origin;
2941 /* Points to a structure whose details depend on the language in use. */
2942 struct lang_decl *lang_specific;
2945 extern tree decl_value_expr_lookup (tree);
2946 extern void decl_value_expr_insert (tree, tree);
2948 /* In a VAR_DECL or PARM_DECL, the location at which the value may be found,
2949 if transformations have made this more complicated than evaluating the
2950 decl itself. This should only be used for debugging; once this field has
2951 been set, the decl itself may not legitimately appear in the function. */
2952 #define DECL_HAS_VALUE_EXPR_P(NODE) \
2953 (TREE_CHECK3 (NODE, VAR_DECL, PARM_DECL, RESULT_DECL) \
2954 ->decl_common.decl_flag_2)
2955 #define DECL_VALUE_EXPR(NODE) \
2956 (decl_value_expr_lookup (DECL_WRTL_CHECK (NODE)))
2957 #define SET_DECL_VALUE_EXPR(NODE, VAL) \
2958 (decl_value_expr_insert (DECL_WRTL_CHECK (NODE), VAL))
2960 /* Holds the RTL expression for the value of a variable or function.
2961 This value can be evaluated lazily for functions, variables with
2962 static storage duration, and labels. */
2963 #define DECL_RTL(NODE) \
2964 (DECL_WRTL_CHECK (NODE)->decl_with_rtl.rtl \
2965 ? (NODE)->decl_with_rtl.rtl \
2966 : (make_decl_rtl (NODE), (NODE)->decl_with_rtl.rtl))
2968 /* Set the DECL_RTL for NODE to RTL. */
2969 #define SET_DECL_RTL(NODE, RTL) set_decl_rtl (NODE, RTL)
2971 /* Returns nonzero if NODE is a tree node that can contain RTL. */
2972 #define HAS_RTL_P(NODE) (CODE_CONTAINS_STRUCT (TREE_CODE (NODE), TS_DECL_WRTL))
2974 /* Returns nonzero if the DECL_RTL for NODE has already been set. */
2975 #define DECL_RTL_SET_P(NODE) \
2976 (HAS_RTL_P (NODE) && DECL_WRTL_CHECK (NODE)->decl_with_rtl.rtl != NULL)
2978 /* Copy the RTL from NODE1 to NODE2. If the RTL was not set for
2979 NODE1, it will not be set for NODE2; this is a lazy copy. */
2980 #define COPY_DECL_RTL(NODE1, NODE2) \
2981 (DECL_WRTL_CHECK (NODE2)->decl_with_rtl.rtl \
2982 = DECL_WRTL_CHECK (NODE1)->decl_with_rtl.rtl)
2984 /* The DECL_RTL for NODE, if it is set, or NULL, if it is not set. */
2985 #define DECL_RTL_IF_SET(NODE) (DECL_RTL_SET_P (NODE) ? DECL_RTL (NODE) : NULL)
2987 #if (GCC_VERSION >= 2007)
2988 #define DECL_RTL_KNOWN_SET(decl) __extension__ \
2989 ({ tree const __d = (decl); \
2990 gcc_checking_assert (DECL_RTL_SET_P (__d)); \
2991 /* Dereference it so the compiler knows it can't be NULL even \
2992 without assertion checking. */ \
2993 &*DECL_RTL_IF_SET (__d); })
2995 #define DECL_RTL_KNOWN_SET(decl) (&*DECL_RTL_IF_SET (decl))
2998 /* In VAR_DECL and PARM_DECL nodes, nonzero means declared `register'. */
2999 #define DECL_REGISTER(NODE) (DECL_WRTL_CHECK (NODE)->decl_common.decl_flag_0)
3001 struct GTY(()) tree_decl_with_rtl {
3002 struct tree_decl_common common;
3006 /* In a FIELD_DECL, this is the field position, counting in bytes, of the
3007 DECL_OFFSET_ALIGN-bit-sized word containing the bit closest to the beginning
3008 of the structure. */
3009 #define DECL_FIELD_OFFSET(NODE) (FIELD_DECL_CHECK (NODE)->field_decl.offset)
3011 /* In a FIELD_DECL, this is the offset, in bits, of the first bit of the
3012 field from DECL_FIELD_OFFSET. This field may be nonzero even for fields
3013 that are not bit fields (since DECL_OFFSET_ALIGN may be larger than the
3014 natural alignment of the field's type). */
3015 #define DECL_FIELD_BIT_OFFSET(NODE) \
3016 (FIELD_DECL_CHECK (NODE)->field_decl.bit_offset)
3018 /* In a FIELD_DECL, this indicates whether the field was a bit-field and
3019 if so, the type that was originally specified for it.
3020 TREE_TYPE may have been modified (in finish_struct). */
3021 #define DECL_BIT_FIELD_TYPE(NODE) \
3022 (FIELD_DECL_CHECK (NODE)->field_decl.bit_field_type)
3024 /* For a FIELD_DECL in a QUAL_UNION_TYPE, records the expression, which
3025 if nonzero, indicates that the field occupies the type. */
3026 #define DECL_QUALIFIER(NODE) (FIELD_DECL_CHECK (NODE)->field_decl.qualifier)
3028 /* For FIELD_DECLs, off_align holds the number of low-order bits of
3029 DECL_FIELD_OFFSET which are known to be always zero.
3030 DECL_OFFSET_ALIGN thus returns the alignment that DECL_FIELD_OFFSET
3032 #define DECL_OFFSET_ALIGN(NODE) \
3033 (((unsigned HOST_WIDE_INT)1) << FIELD_DECL_CHECK (NODE)->decl_common.off_align)
3035 /* Specify that DECL_ALIGN(NODE) is a multiple of X. */
3036 #define SET_DECL_OFFSET_ALIGN(NODE, X) \
3037 (FIELD_DECL_CHECK (NODE)->decl_common.off_align = ffs_hwi (X) - 1)
3039 /* For FIELD_DECLS, DECL_FCONTEXT is the *first* baseclass in
3040 which this FIELD_DECL is defined. This information is needed when
3041 writing debugging information about vfield and vbase decls for C++. */
3042 #define DECL_FCONTEXT(NODE) (FIELD_DECL_CHECK (NODE)->field_decl.fcontext)
3044 /* In a FIELD_DECL, indicates this field should be bit-packed. */
3045 #define DECL_PACKED(NODE) (FIELD_DECL_CHECK (NODE)->base.packed_flag)
3047 /* Nonzero in a FIELD_DECL means it is a bit field, and must be accessed
3049 #define DECL_BIT_FIELD(NODE) (FIELD_DECL_CHECK (NODE)->decl_common.decl_flag_1)
3051 /* Used in a FIELD_DECL to indicate that we cannot form the address of
3052 this component. This makes it possible for Type-Based Alias Analysis
3053 to disambiguate accesses to this field with indirect accesses using
3056 struct S { int i; } s;
3059 If the flag is set on 'i', TBAA computes that s.i and *p never conflict.
3061 From the implementation's viewpoint, the alias set of the type of the
3062 field 'i' (int) will not be recorded as a subset of that of the type of
3063 's' (struct S) in record_component_aliases. The counterpart is that
3064 accesses to s.i must not be given the alias set of the type of 'i'
3065 (int) but instead directly that of the type of 's' (struct S). */
3066 #define DECL_NONADDRESSABLE_P(NODE) \
3067 (FIELD_DECL_CHECK (NODE)->decl_common.decl_flag_2)
3069 struct GTY(()) tree_field_decl {
3070 struct tree_decl_common common;
3073 tree bit_field_type;
3079 /* A numeric unique identifier for a LABEL_DECL. The UID allocation is
3080 dense, unique within any one function, and may be used to index arrays.
3081 If the value is -1, then no UID has been assigned. */
3082 #define LABEL_DECL_UID(NODE) \
3083 (LABEL_DECL_CHECK (NODE)->label_decl.label_decl_uid)
3085 /* In a LABEL_DECL, the EH region number for which the label is the
3086 post_landing_pad. */
3087 #define EH_LANDING_PAD_NR(NODE) \
3088 (LABEL_DECL_CHECK (NODE)->label_decl.eh_landing_pad_nr)
3090 /* In LABEL_DECL nodes, nonzero means that an error message about
3091 jumping into such a binding contour has been printed for this label. */
3092 #define DECL_ERROR_ISSUED(NODE) \
3093 (LABEL_DECL_CHECK (NODE)->decl_common.decl_flag_0)
3095 struct GTY(()) tree_label_decl {
3096 struct tree_decl_with_rtl common;
3098 int eh_landing_pad_nr;
3102 struct GTY(()) tree_result_decl {
3103 struct tree_decl_with_rtl common;
3104 struct var_ann_d *ann;
3107 struct GTY(()) tree_const_decl {
3108 struct tree_decl_common common;
3111 /* For a PARM_DECL, records the data type used to pass the argument,
3112 which may be different from the type seen in the program. */
3113 #define DECL_ARG_TYPE(NODE) (PARM_DECL_CHECK (NODE)->decl_common.initial)
3115 /* For PARM_DECL, holds an RTL for the stack slot or register
3116 where the data was actually passed. */
3117 #define DECL_INCOMING_RTL(NODE) \
3118 (PARM_DECL_CHECK (NODE)->parm_decl.incoming_rtl)
3120 struct GTY(()) tree_parm_decl {
3121 struct tree_decl_with_rtl common;
3123 struct var_ann_d *ann;
3127 /* Nonzero for a given ..._DECL node means that no warnings should be
3128 generated just because this node is unused. */
3129 #define DECL_IN_SYSTEM_HEADER(NODE) \
3130 (in_system_header_at (DECL_SOURCE_LOCATION (NODE)))
3132 /* Used to indicate that the linkage status of this DECL is not yet known,
3133 so it should not be output now. */
3134 #define DECL_DEFER_OUTPUT(NODE) \
3135 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.defer_output)
3137 /* In a VAR_DECL that's static,
3138 nonzero if the space is in the text section. */
3139 #define DECL_IN_TEXT_SECTION(NODE) \
3140 (VAR_DECL_CHECK (NODE)->decl_with_vis.in_text_section)
3142 /* In a VAR_DECL that's static,
3143 nonzero if it belongs to the global constant pool. */
3144 #define DECL_IN_CONSTANT_POOL(NODE) \
3145 (VAR_DECL_CHECK (NODE)->decl_with_vis.in_constant_pool)
3147 /* Nonzero for a given ..._DECL node means that this node should be
3148 put in .common, if possible. If a DECL_INITIAL is given, and it
3149 is not error_mark_node, then the decl cannot be put in .common. */
3150 #define DECL_COMMON(NODE) \
3151 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.common_flag)
3153 /* In a VAR_DECL, nonzero if the decl is a register variable with
3154 an explicit asm specification. */
3155 #define DECL_HARD_REGISTER(NODE) \
3156 (VAR_DECL_CHECK (NODE)->decl_with_vis.hard_register)
3158 /* Used to indicate that this DECL has weak linkage. */
3159 #define DECL_WEAK(NODE) (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.weak_flag)
3161 /* Used to indicate that the DECL is a dllimport. */
3162 #define DECL_DLLIMPORT_P(NODE) \
3163 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.dllimport_flag)
3165 /* Used in a DECL to indicate that, even if it TREE_PUBLIC, it need
3166 not be put out unless it is needed in this translation unit.
3167 Entities like this are shared across translation units (like weak
3168 entities), but are guaranteed to be generated by any translation
3169 unit that needs them, and therefore need not be put out anywhere
3170 where they are not needed. DECL_COMDAT is just a hint to the
3171 back-end; it is up to front-ends which set this flag to ensure
3172 that there will never be any harm, other than bloat, in putting out
3173 something which is DECL_COMDAT. */
3174 #define DECL_COMDAT(NODE) \
3175 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.comdat_flag)
3177 #define DECL_COMDAT_GROUP(NODE) \
3178 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.comdat_group)
3180 /* Used in TREE_PUBLIC decls to indicate that copies of this DECL in
3181 multiple translation units should be merged. */
3182 #define DECL_ONE_ONLY(NODE) (DECL_COMDAT_GROUP (NODE) != NULL_TREE)
3184 /* The name of the object as the assembler will see it (but before any
3185 translations made by ASM_OUTPUT_LABELREF). Often this is the same
3186 as DECL_NAME. It is an IDENTIFIER_NODE. */
3187 #define DECL_ASSEMBLER_NAME(NODE) decl_assembler_name (NODE)
3189 /* Return true if NODE is a NODE that can contain a DECL_ASSEMBLER_NAME.
3190 This is true of all DECL nodes except FIELD_DECL. */
3191 #define HAS_DECL_ASSEMBLER_NAME_P(NODE) \
3192 (CODE_CONTAINS_STRUCT (TREE_CODE (NODE), TS_DECL_WITH_VIS))
3194 /* Returns nonzero if the DECL_ASSEMBLER_NAME for NODE has been set. If zero,
3195 the NODE might still have a DECL_ASSEMBLER_NAME -- it just hasn't been set
3197 #define DECL_ASSEMBLER_NAME_SET_P(NODE) \
3198 (HAS_DECL_ASSEMBLER_NAME_P (NODE) \
3199 && DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.assembler_name != NULL_TREE)
3201 /* Set the DECL_ASSEMBLER_NAME for NODE to NAME. */
3202 #define SET_DECL_ASSEMBLER_NAME(NODE, NAME) \
3203 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.assembler_name = (NAME))
3205 /* Copy the DECL_ASSEMBLER_NAME from DECL1 to DECL2. Note that if DECL1's
3206 DECL_ASSEMBLER_NAME has not yet been set, using this macro will not cause
3207 the DECL_ASSEMBLER_NAME of either DECL to be set. In other words, the
3208 semantics of using this macro, are different than saying:
3210 SET_DECL_ASSEMBLER_NAME(DECL2, DECL_ASSEMBLER_NAME (DECL1))
3212 which will try to set the DECL_ASSEMBLER_NAME for DECL1. */
3214 #define COPY_DECL_ASSEMBLER_NAME(DECL1, DECL2) \
3215 (DECL_ASSEMBLER_NAME_SET_P (DECL1) \
3216 ? (void) SET_DECL_ASSEMBLER_NAME (DECL2, \
3217 DECL_ASSEMBLER_NAME (DECL1)) \
3220 /* Records the section name in a section attribute. Used to pass
3221 the name from decl_attributes to make_function_rtl and make_decl_rtl. */
3222 #define DECL_SECTION_NAME(NODE) \
3223 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.section_name)
3225 /* Nonzero in a decl means that the gimplifier has seen (or placed)
3226 this variable in a BIND_EXPR. */
3227 #define DECL_SEEN_IN_BIND_EXPR_P(NODE) \
3228 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.seen_in_bind_expr)
3230 /* Value of the decls's visibility attribute */
3231 #define DECL_VISIBILITY(NODE) \
3232 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.visibility)
3234 /* Nonzero means that the decl had its visibility specified rather than
3236 #define DECL_VISIBILITY_SPECIFIED(NODE) \
3237 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.visibility_specified)
3239 /* In a VAR_DECL, the model to use if the data should be allocated from
3240 thread-local storage. */
3241 #define DECL_TLS_MODEL(NODE) (VAR_DECL_CHECK (NODE)->decl_with_vis.tls_model)
3243 /* In a VAR_DECL, nonzero if the data should be allocated from
3244 thread-local storage. */
3245 #define DECL_THREAD_LOCAL_P(NODE) \
3246 (VAR_DECL_CHECK (NODE)->decl_with_vis.tls_model >= TLS_MODEL_REAL)
3248 /* In a non-local VAR_DECL with static storage duration, true if the
3249 variable has an initialization priority. If false, the variable
3250 will be initialized at the DEFAULT_INIT_PRIORITY. */
3251 #define DECL_HAS_INIT_PRIORITY_P(NODE) \
3252 (VAR_DECL_CHECK (NODE)->decl_with_vis.init_priority_p)
3254 /* Specify whether the section name was set by user or by
3255 compiler via -ffunction-sections. */
3256 #define DECL_HAS_IMPLICIT_SECTION_NAME_P(NODE) \
3257 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.implicit_section_name_p)
3259 struct GTY(()) tree_decl_with_vis {
3260 struct tree_decl_with_rtl common;
3261 tree assembler_name;
3265 /* Belong to VAR_DECL exclusively. */
3266 unsigned defer_output : 1;
3267 unsigned hard_register : 1;
3268 unsigned thread_local : 1;
3269 unsigned common_flag : 1;
3270 unsigned in_text_section : 1;
3271 unsigned in_constant_pool : 1;
3272 unsigned dllimport_flag : 1;
3273 /* Don't belong to VAR_DECL exclusively. */
3274 unsigned weak_flag : 1;
3276 unsigned seen_in_bind_expr : 1;
3277 unsigned comdat_flag : 1;
3278 ENUM_BITFIELD(symbol_visibility) visibility : 2;
3279 unsigned visibility_specified : 1;
3280 /* Belongs to VAR_DECL exclusively. */
3281 ENUM_BITFIELD(tls_model) tls_model : 3;
3283 /* Belong to FUNCTION_DECL exclusively. */
3284 unsigned init_priority_p : 1;
3285 /* Used by C++ only. Might become a generic decl flag. */
3286 unsigned shadowed_for_var_p : 1;
3287 /* When SECTION_NAME is implied by -ffunsection-section. */
3288 unsigned implicit_section_name_p : 1;
3289 /* 13 unused bits. */
3292 extern tree decl_debug_expr_lookup (tree);
3293 extern void decl_debug_expr_insert (tree, tree);
3294 /* For VAR_DECL, this is set to either an expression that it was split
3295 from (if DECL_DEBUG_EXPR_IS_FROM is true), otherwise a tree_list of
3296 subexpressions that it was split into. */
3297 #define DECL_DEBUG_EXPR(NODE) \
3298 (decl_debug_expr_lookup (VAR_DECL_CHECK (NODE)))
3300 #define SET_DECL_DEBUG_EXPR(NODE, VAL) \
3301 (decl_debug_expr_insert (VAR_DECL_CHECK (NODE), VAL))
3303 /* An initialization priority. */
3304 typedef unsigned short priority_type;
3306 extern priority_type decl_init_priority_lookup (tree);
3307 extern priority_type decl_fini_priority_lookup (tree);
3308 extern void decl_init_priority_insert (tree, priority_type);
3309 extern void decl_fini_priority_insert (tree, priority_type);
3311 /* For a VAR_DECL or FUNCTION_DECL the initialization priority of
3313 #define DECL_INIT_PRIORITY(NODE) \
3314 (decl_init_priority_lookup (NODE))
3315 /* Set the initialization priority for NODE to VAL. */
3316 #define SET_DECL_INIT_PRIORITY(NODE, VAL) \
3317 (decl_init_priority_insert (NODE, VAL))
3319 /* For a FUNCTION_DECL the finalization priority of NODE. */
3320 #define DECL_FINI_PRIORITY(NODE) \
3321 (decl_fini_priority_lookup (NODE))
3322 /* Set the finalization priority for NODE to VAL. */
3323 #define SET_DECL_FINI_PRIORITY(NODE, VAL) \
3324 (decl_fini_priority_insert (NODE, VAL))
3326 /* The initialization priority for entities for which no explicit
3327 initialization priority has been specified. */
3328 #define DEFAULT_INIT_PRIORITY 65535
3330 /* The maximum allowed initialization priority. */
3331 #define MAX_INIT_PRIORITY 65535
3333 /* The largest priority value reserved for use by system runtime
3335 #define MAX_RESERVED_INIT_PRIORITY 100
3337 #define DECL_VAR_ANN_PTR(NODE) \
3338 (TREE_CODE (NODE) == VAR_DECL ? &(NODE)->var_decl.ann \
3339 : TREE_CODE (NODE) == PARM_DECL ? &(NODE)->parm_decl.ann \
3340 : TREE_CODE (NODE) == RESULT_DECL ? &(NODE)->result_decl.ann \
3343 struct GTY(()) tree_var_decl {
3344 struct tree_decl_with_vis common;
3345 struct var_ann_d *ann;
3349 /* This field is used to reference anything in decl.result and is meant only
3350 for use by the garbage collector. */
3351 #define DECL_RESULT_FLD(NODE) \
3352 (DECL_NON_COMMON_CHECK (NODE)->decl_non_common.result)
3354 /* The DECL_VINDEX is used for FUNCTION_DECLS in two different ways.
3355 Before the struct containing the FUNCTION_DECL is laid out,
3356 DECL_VINDEX may point to a FUNCTION_DECL in a base class which
3357 is the FUNCTION_DECL which this FUNCTION_DECL will replace as a virtual
3358 function. When the class is laid out, this pointer is changed
3359 to an INTEGER_CST node which is suitable for use as an index
3360 into the virtual function table.
3361 C++ also uses this field in namespaces, hence the DECL_NON_COMMON_CHECK. */
3362 #define DECL_VINDEX(NODE) \
3363 (DECL_NON_COMMON_CHECK (NODE)->decl_non_common.vindex)
3366 tree_decl_non_common {
3367 struct tree_decl_with_vis common;
3368 /* C++ uses this in namespaces. */
3370 /* C++ uses this in templates. */
3372 /* Almost all FE's use this. */
3374 /* C++ uses this in namespaces and function_decls. */
3378 /* In FUNCTION_DECL, holds the decl for the return value. */
3379 #define DECL_RESULT(NODE) (FUNCTION_DECL_CHECK (NODE)->decl_non_common.result)
3381 /* In a FUNCTION_DECL, nonzero if the function cannot be inlined. */
3382 #define DECL_UNINLINABLE(NODE) \
3383 (FUNCTION_DECL_CHECK (NODE)->function_decl.uninlinable)
3385 /* In a FUNCTION_DECL, the saved representation of the body of the
3387 #define DECL_SAVED_TREE(NODE) \
3388 (FUNCTION_DECL_CHECK (NODE)->decl_non_common.saved_tree)
3390 /* Nonzero in a FUNCTION_DECL means this function should be treated
3391 as if it were a malloc, meaning it returns a pointer that is
3393 #define DECL_IS_MALLOC(NODE) \
3394 (FUNCTION_DECL_CHECK (NODE)->function_decl.malloc_flag)
3396 /* Nonzero in a FUNCTION_DECL means this function should be treated as
3397 C++ operator new, meaning that it returns a pointer for which we
3398 should not use type based aliasing. */
3399 #define DECL_IS_OPERATOR_NEW(NODE) \
3400 (FUNCTION_DECL_CHECK (NODE)->function_decl.operator_new_flag)
3402 /* Nonzero in a FUNCTION_DECL means this function may return more
3404 #define DECL_IS_RETURNS_TWICE(NODE) \
3405 (FUNCTION_DECL_CHECK (NODE)->function_decl.returns_twice_flag)
3407 /* Nonzero in a FUNCTION_DECL means this function should be treated
3408 as "pure" function (like const function, but may read global memory). */
3409 #define DECL_PURE_P(NODE) (FUNCTION_DECL_CHECK (NODE)->function_decl.pure_flag)
3411 /* Nonzero only if one of TREE_READONLY or DECL_PURE_P is nonzero AND
3412 the const or pure function may not terminate. When this is nonzero
3413 for a const or pure function, it can be dealt with by cse passes
3414 but cannot be removed by dce passes since you are not allowed to
3415 change an infinite looping program into one that terminates without
3417 #define DECL_LOOPING_CONST_OR_PURE_P(NODE) \
3418 (FUNCTION_DECL_CHECK (NODE)->function_decl.looping_const_or_pure_flag)
3420 /* Nonzero in a FUNCTION_DECL means this function should be treated
3421 as "novops" function (function that does not read global memory,
3422 but may have arbitrary side effects). */
3423 #define DECL_IS_NOVOPS(NODE) \
3424 (FUNCTION_DECL_CHECK (NODE)->function_decl.novops_flag)
3426 /* Used in FUNCTION_DECLs to indicate that they should be run automatically
3427 at the beginning or end of execution. */
3428 #define DECL_STATIC_CONSTRUCTOR(NODE) \
3429 (FUNCTION_DECL_CHECK (NODE)->function_decl.static_ctor_flag)
3431 #define DECL_STATIC_DESTRUCTOR(NODE) \
3432 (FUNCTION_DECL_CHECK (NODE)->function_decl.static_dtor_flag)
3434 /* Used in FUNCTION_DECLs to indicate that function entry and exit should
3435 be instrumented with calls to support routines. */
3436 #define DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT(NODE) \
3437 (FUNCTION_DECL_CHECK (NODE)->function_decl.no_instrument_function_entry_exit)
3439 /* Used in FUNCTION_DECLs to indicate that limit-stack-* should be
3440 disabled in this function. */
3441 #define DECL_NO_LIMIT_STACK(NODE) \
3442 (FUNCTION_DECL_CHECK (NODE)->function_decl.no_limit_stack)
3444 /* In a FUNCTION_DECL indicates that a static chain is needed. */
3445 #define DECL_STATIC_CHAIN(NODE) \
3446 (FUNCTION_DECL_CHECK (NODE)->function_decl.regdecl_flag)
3448 /* Nonzero for a decl that cgraph has decided should be inlined into
3449 at least one call site. It is not meaningful to look at this
3450 directly; always use cgraph_function_possibly_inlined_p. */
3451 #define DECL_POSSIBLY_INLINED(DECL) \
3452 FUNCTION_DECL_CHECK (DECL)->function_decl.possibly_inlined
3454 /* Nonzero in a FUNCTION_DECL means that this function was declared inline,
3455 such as via the `inline' keyword in C/C++. This flag controls the linkage
3456 semantics of 'inline' */
3457 #define DECL_DECLARED_INLINE_P(NODE) \
3458 (FUNCTION_DECL_CHECK (NODE)->function_decl.declared_inline_flag)
3460 /* Nonzero in a FUNCTION_DECL means this function should not get
3461 -Winline warnings. */
3462 #define DECL_NO_INLINE_WARNING_P(NODE) \
3463 (FUNCTION_DECL_CHECK (NODE)->function_decl.no_inline_warning_flag)
3465 /* Nonzero if a FUNCTION_CODE is a TM load/store. */
3466 #define BUILTIN_TM_LOAD_STORE_P(FN) \
3467 ((FN) >= BUILT_IN_TM_STORE_1 && (FN) <= BUILT_IN_TM_LOAD_RFW_LDOUBLE)
3469 /* Nonzero if a FUNCTION_CODE is a TM load. */
3470 #define BUILTIN_TM_LOAD_P(FN) \
3471 ((FN) >= BUILT_IN_TM_LOAD_1 && (FN) <= BUILT_IN_TM_LOAD_RFW_LDOUBLE)
3473 /* Nonzero if a FUNCTION_CODE is a TM store. */
3474 #define BUILTIN_TM_STORE_P(FN) \
3475 ((FN) >= BUILT_IN_TM_STORE_1 && (FN) <= BUILT_IN_TM_STORE_WAW_LDOUBLE)
3477 #define CASE_BUILT_IN_TM_LOAD(FN) \
3478 case BUILT_IN_TM_LOAD_##FN: \
3479 case BUILT_IN_TM_LOAD_RAR_##FN: \
3480 case BUILT_IN_TM_LOAD_RAW_##FN: \
3481 case BUILT_IN_TM_LOAD_RFW_##FN
3483 #define CASE_BUILT_IN_TM_STORE(FN) \
3484 case BUILT_IN_TM_STORE_##FN: \
3485 case BUILT_IN_TM_STORE_WAR_##FN: \
3486 case BUILT_IN_TM_STORE_WAW_##FN
3488 /* Nonzero in a FUNCTION_DECL that should be always inlined by the inliner
3489 disregarding size and cost heuristics. This is equivalent to using
3490 the always_inline attribute without the required diagnostics if the
3491 function cannot be inlined. */
3492 #define DECL_DISREGARD_INLINE_LIMITS(NODE) \
3493 (FUNCTION_DECL_CHECK (NODE)->function_decl.disregard_inline_limits)
3495 extern VEC(tree, gc) **decl_debug_args_lookup (tree);
3496 extern VEC(tree, gc) **decl_debug_args_insert (tree);
3498 /* Nonzero if a FUNCTION_DECL has DEBUG arguments attached to it. */
3499 #define DECL_HAS_DEBUG_ARGS_P(NODE) \
3500 (FUNCTION_DECL_CHECK (NODE)->function_decl.has_debug_args_flag)
3502 /* For FUNCTION_DECL, this holds a pointer to a structure ("struct function")
3503 that describes the status of this function. */
3504 #define DECL_STRUCT_FUNCTION(NODE) \
3505 (FUNCTION_DECL_CHECK (NODE)->function_decl.f)
3507 /* In a FUNCTION_DECL, nonzero means a built in function. */
3508 #define DECL_BUILT_IN(NODE) (DECL_BUILT_IN_CLASS (NODE) != NOT_BUILT_IN)
3510 /* For a builtin function, identify which part of the compiler defined it. */
3511 #define DECL_BUILT_IN_CLASS(NODE) \
3512 (FUNCTION_DECL_CHECK (NODE)->function_decl.built_in_class)
3514 /* In FUNCTION_DECL, a chain of ..._DECL nodes.
3515 VAR_DECL and PARM_DECL reserve the arguments slot for language-specific
3517 #define DECL_ARGUMENTS(NODE) \
3518 (FUNCTION_DECL_CHECK (NODE)->decl_non_common.arguments)
3519 #define DECL_ARGUMENT_FLD(NODE) \
3520 (DECL_NON_COMMON_CHECK (NODE)->decl_non_common.arguments)
3522 /* In FUNCTION_DECL, the function specific target options to use when compiling
3524 #define DECL_FUNCTION_SPECIFIC_TARGET(NODE) \
3525 (FUNCTION_DECL_CHECK (NODE)->function_decl.function_specific_target)
3527 /* In FUNCTION_DECL, the function specific optimization options to use when
3528 compiling this function. */
3529 #define DECL_FUNCTION_SPECIFIC_OPTIMIZATION(NODE) \
3530 (FUNCTION_DECL_CHECK (NODE)->function_decl.function_specific_optimization)
3532 /* FUNCTION_DECL inherits from DECL_NON_COMMON because of the use of the
3533 arguments/result/saved_tree fields by front ends. It was either inherit
3534 FUNCTION_DECL from non_common, or inherit non_common from FUNCTION_DECL,
3535 which seemed a bit strange. */
3537 struct GTY(()) tree_function_decl {
3538 struct tree_decl_non_common common;