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
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 /* Number of language-independent tree codes. */
54 #define NUM_TREE_CODES ((int) LAST_AND_UNUSED_TREE_CODE)
56 /* Tree code classes. */
58 /* Each tree_code has an associated code class represented by a
61 enum tree_code_class {
62 tcc_exceptional, /* An exceptional code (fits no category). */
63 tcc_constant, /* A constant. */
64 /* Order of tcc_type and tcc_declaration is important. */
65 tcc_type, /* A type object code. */
66 tcc_declaration, /* A declaration (also serving as variable refs). */
67 tcc_reference, /* A reference to storage. */
68 tcc_comparison, /* A comparison expression. */
69 tcc_unary, /* A unary arithmetic expression. */
70 tcc_binary, /* A binary arithmetic expression. */
71 tcc_statement, /* A statement expression, which have side effects
72 but usually no interesting value. */
73 tcc_vl_exp, /* A function call or other expression with a
74 variable-length operand vector. */
75 tcc_expression /* Any other expression. */
78 /* Each tree code class has an associated string representation.
79 These must correspond to the tree_code_class entries. */
81 extern const char *const tree_code_class_strings[];
83 /* Returns the string representing CLASS. */
85 #define TREE_CODE_CLASS_STRING(CLASS)\
86 tree_code_class_strings[(int) (CLASS)]
88 extern const enum tree_code_class tree_code_type[];
89 #define TREE_CODE_CLASS(CODE) tree_code_type[(int) (CODE)]
91 /* Nonzero if CODE represents an exceptional code. */
93 #define EXCEPTIONAL_CLASS_P(CODE)\
94 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_exceptional)
96 /* Nonzero if CODE represents a constant. */
98 #define CONSTANT_CLASS_P(CODE)\
99 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_constant)
101 /* Nonzero if CODE represents a type. */
103 #define TYPE_P(CODE)\
104 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_type)
106 /* Nonzero if CODE represents a declaration. */
108 #define DECL_P(CODE)\
109 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_declaration)
111 /* Nonzero if DECL represents a VAR_DECL or FUNCTION_DECL. */
113 #define VAR_OR_FUNCTION_DECL_P(DECL)\
114 (TREE_CODE (DECL) == VAR_DECL || TREE_CODE (DECL) == FUNCTION_DECL)
116 /* Nonzero if CODE represents a INDIRECT_REF. Keep these checks in
117 ascending code order. */
119 #define INDIRECT_REF_P(CODE)\
120 (TREE_CODE (CODE) == INDIRECT_REF \
121 || TREE_CODE (CODE) == ALIGN_INDIRECT_REF \
122 || TREE_CODE (CODE) == MISALIGNED_INDIRECT_REF)
124 /* Nonzero if CODE represents a reference. */
126 #define REFERENCE_CLASS_P(CODE)\
127 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_reference)
129 /* Nonzero if CODE represents a comparison. */
131 #define COMPARISON_CLASS_P(CODE)\
132 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_comparison)
134 /* Nonzero if CODE represents a unary arithmetic expression. */
136 #define UNARY_CLASS_P(CODE)\
137 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_unary)
139 /* Nonzero if CODE represents a binary arithmetic expression. */
141 #define BINARY_CLASS_P(CODE)\
142 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_binary)
144 /* Nonzero if CODE represents a statement expression. */
146 #define STATEMENT_CLASS_P(CODE)\
147 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_statement)
149 /* Nonzero if CODE represents a function call-like expression with a
150 variable-length operand vector. */
152 #define VL_EXP_CLASS_P(CODE)\
153 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_vl_exp)
155 /* Nonzero if CODE represents any other expression. */
157 #define EXPRESSION_CLASS_P(CODE)\
158 (TREE_CODE_CLASS (TREE_CODE (CODE)) == tcc_expression)
160 /* Returns nonzero iff CODE represents a type or declaration. */
162 #define IS_TYPE_OR_DECL_P(CODE)\
163 (TYPE_P (CODE) || DECL_P (CODE))
165 /* Returns nonzero iff CLASS is the tree-code class of an
168 #define IS_EXPR_CODE_CLASS(CLASS)\
169 ((CLASS) >= tcc_reference && (CLASS) <= tcc_expression)
171 /* Returns nonzero iff NODE is an expression of some kind. */
173 #define EXPR_P(NODE) IS_EXPR_CODE_CLASS (TREE_CODE_CLASS (TREE_CODE (NODE)))
175 /* Number of argument-words in each kind of tree-node. */
177 extern const unsigned char tree_code_length[];
178 #define TREE_CODE_LENGTH(CODE) tree_code_length[(int) (CODE)]
180 /* Names of tree components. */
182 extern const char *const tree_code_name[];
184 /* We have to be able to tell cgraph about the needed-ness of the target
185 of an alias. This requires that the decl have been defined. Aliases
186 that precede their definition have to be queued for later processing. */
188 typedef struct GTY(()) alias_pair
194 /* Define gc'd vector type. */
195 DEF_VEC_O(alias_pair);
196 DEF_VEC_ALLOC_O(alias_pair,gc);
198 extern GTY(()) VEC(alias_pair,gc) * alias_pairs;
201 /* Classify which part of the compiler has defined a given builtin function.
202 Note that we assume below that this is no more than two bits. */
211 /* Names for the above. */
212 extern const char *const built_in_class_names[4];
214 /* Codes that identify the various built in functions
215 so that expand_call can identify them quickly. */
217 #define DEF_BUILTIN(ENUM, N, C, T, LT, B, F, NA, AT, IM, COND) ENUM,
218 enum built_in_function
220 #include "builtins.def"
222 /* Complex division routines in libgcc. These are done via builtins
223 because emit_library_call_value can't handle complex values. */
224 BUILT_IN_COMPLEX_MUL_MIN,
225 BUILT_IN_COMPLEX_MUL_MAX
226 = BUILT_IN_COMPLEX_MUL_MIN
227 + MAX_MODE_COMPLEX_FLOAT
228 - MIN_MODE_COMPLEX_FLOAT,
230 BUILT_IN_COMPLEX_DIV_MIN,
231 BUILT_IN_COMPLEX_DIV_MAX
232 = BUILT_IN_COMPLEX_DIV_MIN
233 + MAX_MODE_COMPLEX_FLOAT
234 - MIN_MODE_COMPLEX_FLOAT,
236 /* Upper bound on non-language-specific builtins. */
241 /* Names for the above. */
242 extern const char * built_in_names[(int) END_BUILTINS];
244 /* Helper macros for math builtins. */
246 #define BUILTIN_EXP10_P(FN) \
247 ((FN) == BUILT_IN_EXP10 || (FN) == BUILT_IN_EXP10F || (FN) == BUILT_IN_EXP10L \
248 || (FN) == BUILT_IN_POW10 || (FN) == BUILT_IN_POW10F || (FN) == BUILT_IN_POW10L)
250 #define BUILTIN_EXPONENT_P(FN) (BUILTIN_EXP10_P (FN) \
251 || (FN) == BUILT_IN_EXP || (FN) == BUILT_IN_EXPF || (FN) == BUILT_IN_EXPL \
252 || (FN) == BUILT_IN_EXP2 || (FN) == BUILT_IN_EXP2F || (FN) == BUILT_IN_EXP2L)
254 #define BUILTIN_SQRT_P(FN) \
255 ((FN) == BUILT_IN_SQRT || (FN) == BUILT_IN_SQRTF || (FN) == BUILT_IN_SQRTL)
257 #define BUILTIN_CBRT_P(FN) \
258 ((FN) == BUILT_IN_CBRT || (FN) == BUILT_IN_CBRTF || (FN) == BUILT_IN_CBRTL)
260 #define BUILTIN_ROOT_P(FN) (BUILTIN_SQRT_P (FN) || BUILTIN_CBRT_P (FN))
262 #define CASE_FLT_FN(FN) case FN: case FN##F: case FN##L
263 #define CASE_FLT_FN_REENT(FN) case FN##_R: case FN##F_R: case FN##L_R
264 #define CASE_INT_FN(FN) case FN: case FN##L: case FN##LL
266 /* An array of _DECL trees for the above. */
267 extern GTY(()) tree built_in_decls[(int) END_BUILTINS];
268 extern GTY(()) tree implicit_built_in_decls[(int) END_BUILTINS];
270 /* In an OMP_CLAUSE node. */
272 /* Number of operands and names for each clause. */
273 extern unsigned const char omp_clause_num_ops[];
274 extern const char * const omp_clause_code_name[];
276 /* Clause codes. Do not reorder, as this is used to index into the tables
277 omp_clause_num_ops and omp_clause_code_name. */
280 /* Clause zero is special-cased inside the parser
281 (c_parser_omp_variable_list). */
282 OMP_CLAUSE_ERROR = 0,
284 /* OpenMP clause: private (variable_list). */
287 /* OpenMP clause: shared (variable_list). */
290 /* OpenMP clause: firstprivate (variable_list). */
291 OMP_CLAUSE_FIRSTPRIVATE,
293 /* OpenMP clause: lastprivate (variable_list). */
294 OMP_CLAUSE_LASTPRIVATE,
296 /* OpenMP clause: reduction (operator:variable_list).
297 OMP_CLAUSE_REDUCTION_CODE: The tree_code of the operator.
298 Operand 1: OMP_CLAUSE_REDUCTION_INIT: Stmt-list to initialize the var.
299 Operand 2: OMP_CLAUSE_REDUCTION_MERGE: Stmt-list to merge private var
301 Operand 3: OMP_CLAUSE_REDUCTION_PLACEHOLDER: A dummy VAR_DECL
302 placeholder used in OMP_CLAUSE_REDUCTION_{INIT,MERGE}. */
303 OMP_CLAUSE_REDUCTION,
305 /* OpenMP clause: copyin (variable_list). */
308 /* OpenMP clause: copyprivate (variable_list). */
309 OMP_CLAUSE_COPYPRIVATE,
311 /* OpenMP clause: if (scalar-expression). */
314 /* OpenMP clause: num_threads (integer-expression). */
315 OMP_CLAUSE_NUM_THREADS,
317 /* OpenMP clause: schedule. */
320 /* OpenMP clause: nowait. */
323 /* OpenMP clause: ordered. */
326 /* OpenMP clause: default. */
329 /* OpenMP clause: collapse (constant-integer-expression). */
332 /* OpenMP clause: untied. */
336 /* The definition of tree nodes fills the next several pages. */
338 /* A tree node can represent a data type, a variable, an expression
339 or a statement. Each node has a TREE_CODE which says what kind of
340 thing it represents. Some common codes are:
341 INTEGER_TYPE -- represents a type of integers.
342 ARRAY_TYPE -- represents a type of pointer.
343 VAR_DECL -- represents a declared variable.
344 INTEGER_CST -- represents a constant integer value.
345 PLUS_EXPR -- represents a sum (an expression).
347 As for the contents of a tree node: there are some fields
348 that all nodes share. Each TREE_CODE has various special-purpose
349 fields as well. The fields of a node are never accessed directly,
350 always through accessor macros. */
352 /* Every kind of tree node starts with this structure,
353 so all nodes have these fields.
355 See the accessor macros, defined below, for documentation of the
358 struct GTY(()) tree_base {
359 ENUM_BITFIELD(tree_code) code : 16;
361 unsigned side_effects_flag : 1;
362 unsigned constant_flag : 1;
363 unsigned addressable_flag : 1;
364 unsigned volatile_flag : 1;
365 unsigned readonly_flag : 1;
366 unsigned unsigned_flag : 1;
367 unsigned asm_written_flag: 1;
368 unsigned nowarning_flag : 1;
370 unsigned used_flag : 1;
371 unsigned nothrow_flag : 1;
372 unsigned static_flag : 1;
373 unsigned public_flag : 1;
374 unsigned private_flag : 1;
375 unsigned protected_flag : 1;
376 unsigned deprecated_flag : 1;
377 unsigned saturating_flag : 1;
379 unsigned default_def_flag : 1;
380 unsigned lang_flag_0 : 1;
381 unsigned lang_flag_1 : 1;
382 unsigned lang_flag_2 : 1;
383 unsigned lang_flag_3 : 1;
384 unsigned lang_flag_4 : 1;
385 unsigned lang_flag_5 : 1;
386 unsigned lang_flag_6 : 1;
388 unsigned visited : 1;
389 unsigned packed_flag : 1;
390 unsigned user_align : 1;
394 /* This field is only used with type nodes; the only reason it is present
395 in tree_base instead of tree_type is to save space. The size of the
396 field must be large enough to hold addr_space_t values. */
397 unsigned address_space : 8;
400 struct GTY(()) tree_common {
401 struct tree_base base;
406 /* The following table lists the uses of each of the above flags and
407 for which types of nodes they are defined.
412 VAR_DECL, PARM_DECL, RESULT_DECL, FUNCTION_DECL, LABEL_DECL
414 CONSTRUCTOR, IDENTIFIER_NODE
415 STMT_EXPR, it means we want the result of the enclosed expression
417 CALL_EXPR_TAILCALL in
426 VAR_DECL, FUNCTION_DECL
429 TREE_NO_TRAMPOLINE in
435 TREE_SYMBOL_REFERENCED in
439 TARGET_EXPR, WITH_CLEANUP_EXPR
441 TRY_CATCH_IS_CLEANUP in
447 TYPE_REF_CAN_ALIAS_ALL in
448 POINTER_TYPE, REFERENCE_TYPE
456 CALL_CANNOT_INLINE_P in
465 INTEGER_CST, REAL_CST, COMPLEX_CST, VECTOR_CST
468 VAR_DECL, FUNCTION_DECL
474 CALL_EXPR_VA_ARG_PACK in
477 TYPE_CACHED_VALUES_P in
480 SAVE_EXPR_RESOLVED_P in
483 OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE in
484 OMP_CLAUSE_LASTPRIVATE
486 OMP_CLAUSE_PRIVATE_DEBUG in
494 CALL_EXPR_RETURN_SLOT_OPT in
500 OMP_PARALLEL_COMBINED in
502 OMP_CLAUSE_PRIVATE_OUTER_REF in
505 TYPE_REF_IS_RVALUE in
529 TREE_THIS_VOLATILE in
552 TYPE_SIZES_GIMPLIFIED in
563 REGISTER_DEFS_IN_THIS_STMT in
564 all expressions (tree-into-ssa.c)
569 VAR_DECL, FUNCTION_DECL
570 RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE
571 BLOCK, SSA_NAME, STRING_CST
574 all expressions (tree-ssa-dce.c, tree-ssa-pre.c)
593 (ALIGN/MISALIGNED_)INDIRECT_REF, ARRAY_REF, ARRAY_RANGE_REF
601 IDENTIFIER_TRANSPARENT_ALIAS in
604 STMT_IN_SSA_EDGE_WORKLIST in
605 all expressions (tree-ssa-propagate.c)
610 all trees (used liberally by many passes)
625 TYPE_VECTOR_OPAQUE in
628 SSA_NAME_IS_DEFAULT_DEF in
633 #define DEFTREESTRUCT(ENUM, NAME) ENUM,
634 enum tree_node_structure_enum {
635 #include "treestruct.def"
640 /* Define accessors for the fields that all tree nodes have
641 (though some fields are not used for all kinds of nodes). */
643 /* The tree-code says what kind of node it is.
644 Codes are defined in tree.def. */
645 #define TREE_CODE(NODE) ((enum tree_code) (NODE)->base.code)
646 #define TREE_SET_CODE(NODE, VALUE) ((NODE)->base.code = (VALUE))
648 /* When checking is enabled, errors will be generated if a tree node
649 is accessed incorrectly. The macros die with a fatal error. */
650 #if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
652 #define TREE_CHECK(T, CODE) __extension__ \
653 ({ __typeof (T) const __t = (T); \
654 if (TREE_CODE (__t) != (CODE)) \
655 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
659 #define TREE_NOT_CHECK(T, CODE) __extension__ \
660 ({ __typeof (T) const __t = (T); \
661 if (TREE_CODE (__t) == (CODE)) \
662 tree_not_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
666 #define TREE_CHECK2(T, CODE1, CODE2) __extension__ \
667 ({ __typeof (T) const __t = (T); \
668 if (TREE_CODE (__t) != (CODE1) \
669 && TREE_CODE (__t) != (CODE2)) \
670 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
671 (CODE1), (CODE2), 0); \
674 #define TREE_NOT_CHECK2(T, CODE1, CODE2) __extension__ \
675 ({ __typeof (T) const __t = (T); \
676 if (TREE_CODE (__t) == (CODE1) \
677 || TREE_CODE (__t) == (CODE2)) \
678 tree_not_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
679 (CODE1), (CODE2), 0); \
682 #define TREE_CHECK3(T, CODE1, CODE2, CODE3) __extension__ \
683 ({ __typeof (T) const __t = (T); \
684 if (TREE_CODE (__t) != (CODE1) \
685 && TREE_CODE (__t) != (CODE2) \
686 && TREE_CODE (__t) != (CODE3)) \
687 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
688 (CODE1), (CODE2), (CODE3), 0); \
691 #define TREE_NOT_CHECK3(T, CODE1, CODE2, CODE3) __extension__ \
692 ({ __typeof (T) const __t = (T); \
693 if (TREE_CODE (__t) == (CODE1) \
694 || TREE_CODE (__t) == (CODE2) \
695 || TREE_CODE (__t) == (CODE3)) \
696 tree_not_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
697 (CODE1), (CODE2), (CODE3), 0); \
700 #define TREE_CHECK4(T, CODE1, CODE2, CODE3, CODE4) __extension__ \
701 ({ __typeof (T) const __t = (T); \
702 if (TREE_CODE (__t) != (CODE1) \
703 && TREE_CODE (__t) != (CODE2) \
704 && TREE_CODE (__t) != (CODE3) \
705 && TREE_CODE (__t) != (CODE4)) \
706 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
707 (CODE1), (CODE2), (CODE3), (CODE4), 0); \
710 #define NON_TREE_CHECK4(T, CODE1, CODE2, CODE3, CODE4) __extension__ \
711 ({ __typeof (T) const __t = (T); \
712 if (TREE_CODE (__t) == (CODE1) \
713 || TREE_CODE (__t) == (CODE2) \
714 || TREE_CODE (__t) == (CODE3) \
715 || TREE_CODE (__t) == (CODE4)) \
716 tree_not_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
717 (CODE1), (CODE2), (CODE3), (CODE4), 0); \
720 #define TREE_CHECK5(T, CODE1, CODE2, CODE3, CODE4, CODE5) __extension__ \
721 ({ __typeof (T) const __t = (T); \
722 if (TREE_CODE (__t) != (CODE1) \
723 && TREE_CODE (__t) != (CODE2) \
724 && TREE_CODE (__t) != (CODE3) \
725 && TREE_CODE (__t) != (CODE4) \
726 && TREE_CODE (__t) != (CODE5)) \
727 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
728 (CODE1), (CODE2), (CODE3), (CODE4), (CODE5), 0);\
731 #define TREE_NOT_CHECK5(T, CODE1, CODE2, CODE3, CODE4, CODE5) __extension__ \
732 ({ __typeof (T) const __t = (T); \
733 if (TREE_CODE (__t) == (CODE1) \
734 || TREE_CODE (__t) == (CODE2) \
735 || TREE_CODE (__t) == (CODE3) \
736 || TREE_CODE (__t) == (CODE4) \
737 || TREE_CODE (__t) == (CODE5)) \
738 tree_not_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
739 (CODE1), (CODE2), (CODE3), (CODE4), (CODE5), 0);\
742 #define CONTAINS_STRUCT_CHECK(T, STRUCT) __extension__ \
743 ({ __typeof (T) const __t = (T); \
744 if (tree_contains_struct[TREE_CODE(__t)][(STRUCT)] != 1) \
745 tree_contains_struct_check_failed (__t, (STRUCT), __FILE__, __LINE__, \
749 #define TREE_CLASS_CHECK(T, CLASS) __extension__ \
750 ({ __typeof (T) const __t = (T); \
751 if (TREE_CODE_CLASS (TREE_CODE(__t)) != (CLASS)) \
752 tree_class_check_failed (__t, (CLASS), __FILE__, __LINE__, \
756 #define TREE_RANGE_CHECK(T, CODE1, CODE2) __extension__ \
757 ({ __typeof (T) const __t = (T); \
758 if (TREE_CODE (__t) < (CODE1) || TREE_CODE (__t) > (CODE2)) \
759 tree_range_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
763 #define OMP_CLAUSE_SUBCODE_CHECK(T, CODE) __extension__ \
764 ({ __typeof (T) const __t = (T); \
765 if (TREE_CODE (__t) != OMP_CLAUSE) \
766 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
768 if (__t->omp_clause.code != (CODE)) \
769 omp_clause_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
773 #define OMP_CLAUSE_RANGE_CHECK(T, CODE1, CODE2) __extension__ \
774 ({ __typeof (T) const __t = (T); \
775 if (TREE_CODE (__t) != OMP_CLAUSE) \
776 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
778 if ((int) __t->omp_clause.code < (int) (CODE1) \
779 || (int) __t->omp_clause.code > (int) (CODE2)) \
780 omp_clause_range_check_failed (__t, __FILE__, __LINE__, \
781 __FUNCTION__, (CODE1), (CODE2)); \
784 /* These checks have to be special cased. */
785 #define EXPR_CHECK(T) __extension__ \
786 ({ __typeof (T) const __t = (T); \
787 char const __c = TREE_CODE_CLASS (TREE_CODE (__t)); \
788 if (!IS_EXPR_CODE_CLASS (__c)) \
789 tree_class_check_failed (__t, tcc_expression, __FILE__, __LINE__, \
793 /* These checks have to be special cased. */
794 #define NON_TYPE_CHECK(T) __extension__ \
795 ({ __typeof (T) const __t = (T); \
797 tree_not_class_check_failed (__t, tcc_type, __FILE__, __LINE__, \
801 #define TREE_VEC_ELT_CHECK(T, I) __extension__ \
802 (*({__typeof (T) const __t = (T); \
803 const int __i = (I); \
804 if (TREE_CODE (__t) != TREE_VEC) \
805 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
807 if (__i < 0 || __i >= __t->vec.length) \
808 tree_vec_elt_check_failed (__i, __t->vec.length, \
809 __FILE__, __LINE__, __FUNCTION__); \
810 &__t->vec.a[__i]; }))
812 #define OMP_CLAUSE_ELT_CHECK(T, I) __extension__ \
813 (*({__typeof (T) const __t = (T); \
814 const int __i = (I); \
815 if (TREE_CODE (__t) != OMP_CLAUSE) \
816 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, \
818 if (__i < 0 || __i >= omp_clause_num_ops [__t->omp_clause.code]) \
819 omp_clause_operand_check_failed (__i, __t, __FILE__, __LINE__, \
821 &__t->omp_clause.ops[__i]; }))
823 /* Special checks for TREE_OPERANDs. */
824 #define TREE_OPERAND_CHECK(T, I) __extension__ \
825 (*({__typeof (T) const __t = EXPR_CHECK (T); \
826 const int __i = (I); \
827 if (__i < 0 || __i >= TREE_OPERAND_LENGTH (__t)) \
828 tree_operand_check_failed (__i, __t, \
829 __FILE__, __LINE__, __FUNCTION__); \
830 &__t->exp.operands[__i]; }))
832 #define TREE_OPERAND_CHECK_CODE(T, CODE, I) __extension__ \
833 (*({__typeof (T) const __t = (T); \
834 const int __i = (I); \
835 if (TREE_CODE (__t) != CODE) \
836 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, (CODE), 0);\
837 if (__i < 0 || __i >= TREE_OPERAND_LENGTH (__t)) \
838 tree_operand_check_failed (__i, __t, \
839 __FILE__, __LINE__, __FUNCTION__); \
840 &__t->exp.operands[__i]; }))
842 #define TREE_RTL_OPERAND_CHECK(T, CODE, I) __extension__ \
844 ({__typeof (T) const __t = (T); \
845 const int __i = (I); \
846 if (TREE_CODE (__t) != (CODE)) \
847 tree_check_failed (__t, __FILE__, __LINE__, __FUNCTION__, (CODE), 0); \
848 if (__i < 0 || __i >= TREE_OPERAND_LENGTH (__t)) \
849 tree_operand_check_failed (__i, __t, \
850 __FILE__, __LINE__, __FUNCTION__); \
851 &__t->exp.operands[__i]; }))
853 /* Nodes are chained together for many purposes.
854 Types are chained together to record them for being output to the debugger
855 (see the function `chain_type').
856 Decls in the same scope are chained together to record the contents
858 Statement nodes for successive statements used to be chained together.
859 Often lists of things are represented by TREE_LIST nodes that
860 are chained together. */
862 #define TREE_CHAIN(NODE) __extension__ \
863 (*({__typeof (NODE) const __t = (NODE); \
864 &__t->common.chain; }))
866 /* In all nodes that are expressions, this is the data type of the expression.
867 In POINTER_TYPE nodes, this is the type that the pointer points to.
868 In ARRAY_TYPE nodes, this is the type of the elements.
869 In VECTOR_TYPE nodes, this is the type of the elements. */
870 #define TREE_TYPE(NODE) __extension__ \
871 (*({__typeof (NODE) const __t = (NODE); \
872 &__t->common.type; }))
874 extern void tree_contains_struct_check_failed (const_tree,
875 const enum tree_node_structure_enum,
876 const char *, int, const char *)
879 extern void tree_check_failed (const_tree, const char *, int, const char *,
880 ...) ATTRIBUTE_NORETURN;
881 extern void tree_not_check_failed (const_tree, const char *, int, const char *,
882 ...) ATTRIBUTE_NORETURN;
883 extern void tree_class_check_failed (const_tree, const enum tree_code_class,
884 const char *, int, const char *)
886 extern void tree_range_check_failed (const_tree, const char *, int,
887 const char *, enum tree_code,
889 extern void tree_not_class_check_failed (const_tree,
890 const enum tree_code_class,
891 const char *, int, const char *)
893 extern void tree_vec_elt_check_failed (int, int, const char *,
896 extern void phi_node_elt_check_failed (int, int, const char *,
899 extern void tree_operand_check_failed (int, const_tree,
900 const char *, int, const char *)
902 extern void omp_clause_check_failed (const_tree, const char *, int,
903 const char *, enum omp_clause_code)
905 extern void omp_clause_operand_check_failed (int, const_tree, const char *,
908 extern void omp_clause_range_check_failed (const_tree, const char *, int,
909 const char *, enum omp_clause_code,
910 enum omp_clause_code)
913 #else /* not ENABLE_TREE_CHECKING, or not gcc */
915 #define CONTAINS_STRUCT_CHECK(T, ENUM) (T)
916 #define TREE_CHECK(T, CODE) (T)
917 #define TREE_NOT_CHECK(T, CODE) (T)
918 #define TREE_CHECK2(T, CODE1, CODE2) (T)
919 #define TREE_NOT_CHECK2(T, CODE1, CODE2) (T)
920 #define TREE_CHECK3(T, CODE1, CODE2, CODE3) (T)
921 #define TREE_NOT_CHECK3(T, CODE1, CODE2, CODE3) (T)
922 #define TREE_CHECK4(T, CODE1, CODE2, CODE3, CODE4) (T)
923 #define TREE_NOT_CHECK4(T, CODE1, CODE2, CODE3, CODE4) (T)
924 #define TREE_CHECK5(T, CODE1, CODE2, CODE3, CODE4, CODE5) (T)
925 #define TREE_NOT_CHECK5(T, CODE1, CODE2, CODE3, CODE4, CODE5) (T)
926 #define TREE_CLASS_CHECK(T, CODE) (T)
927 #define TREE_RANGE_CHECK(T, CODE1, CODE2) (T)
928 #define EXPR_CHECK(T) (T)
929 #define NON_TYPE_CHECK(T) (T)
930 #define TREE_VEC_ELT_CHECK(T, I) ((T)->vec.a[I])
931 #define TREE_OPERAND_CHECK(T, I) ((T)->exp.operands[I])
932 #define TREE_OPERAND_CHECK_CODE(T, CODE, I) ((T)->exp.operands[I])
933 #define TREE_RTL_OPERAND_CHECK(T, CODE, I) (*(rtx *) &((T)->exp.operands[I]))
934 #define OMP_CLAUSE_ELT_CHECK(T, i) ((T)->omp_clause.ops[i])
935 #define OMP_CLAUSE_RANGE_CHECK(T, CODE1, CODE2) (T)
936 #define OMP_CLAUSE_SUBCODE_CHECK(T, CODE) (T)
938 #define TREE_CHAIN(NODE) ((NODE)->common.chain)
939 #define TREE_TYPE(NODE) ((NODE)->common.type)
943 #define TREE_BLOCK(NODE) *(tree_block (NODE))
945 #include "tree-check.h"
947 #define TYPE_CHECK(T) TREE_CLASS_CHECK (T, tcc_type)
948 #define DECL_MINIMAL_CHECK(T) CONTAINS_STRUCT_CHECK (T, TS_DECL_MINIMAL)
949 #define DECL_COMMON_CHECK(T) CONTAINS_STRUCT_CHECK (T, TS_DECL_COMMON)
950 #define DECL_WRTL_CHECK(T) CONTAINS_STRUCT_CHECK (T, TS_DECL_WRTL)
951 #define DECL_WITH_VIS_CHECK(T) CONTAINS_STRUCT_CHECK (T, TS_DECL_WITH_VIS)
952 #define DECL_NON_COMMON_CHECK(T) CONTAINS_STRUCT_CHECK (T, TS_DECL_NON_COMMON)
953 #define CST_CHECK(T) TREE_CLASS_CHECK (T, tcc_constant)
954 #define STMT_CHECK(T) TREE_CLASS_CHECK (T, tcc_statement)
955 #define VL_EXP_CHECK(T) TREE_CLASS_CHECK (T, tcc_vl_exp)
956 #define FUNC_OR_METHOD_CHECK(T) TREE_CHECK2 (T, FUNCTION_TYPE, METHOD_TYPE)
957 #define PTR_OR_REF_CHECK(T) TREE_CHECK2 (T, POINTER_TYPE, REFERENCE_TYPE)
959 #define RECORD_OR_UNION_CHECK(T) \
960 TREE_CHECK3 (T, RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE)
961 #define NOT_RECORD_OR_UNION_CHECK(T) \
962 TREE_NOT_CHECK3 (T, RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE)
964 #define NUMERICAL_TYPE_CHECK(T) \
965 TREE_CHECK5 (T, INTEGER_TYPE, ENUMERAL_TYPE, BOOLEAN_TYPE, REAL_TYPE, \
968 /* Here is how primitive or already-canonicalized types' hash codes
970 #define TYPE_HASH(TYPE) (TYPE_UID (TYPE))
972 /* A simple hash function for an arbitrary tree node. This must not be
973 used in hash tables which are saved to a PCH. */
974 #define TREE_HASH(NODE) ((size_t) (NODE) & 0777777)
976 /* Tests if CODE is a conversion expr (NOP_EXPR or CONVERT_EXPR). */
977 #define CONVERT_EXPR_CODE_P(CODE) \
978 ((CODE) == NOP_EXPR || (CODE) == CONVERT_EXPR)
980 /* Similarly, but accept an expressions instead of a tree code. */
981 #define CONVERT_EXPR_P(EXP) CONVERT_EXPR_CODE_P (TREE_CODE (EXP))
983 /* Generate case for NOP_EXPR, CONVERT_EXPR. */
985 #define CASE_CONVERT \
989 /* Given an expression as a tree, strip any conversion that generates
990 no instruction. Accepts both tree and const_tree arguments since
991 we are not modifying the tree itself. */
993 #define STRIP_NOPS(EXP) \
994 (EXP) = tree_strip_nop_conversions (CONST_CAST_TREE (EXP))
996 /* Like STRIP_NOPS, but don't let the signedness change either. */
998 #define STRIP_SIGN_NOPS(EXP) \
999 (EXP) = tree_strip_sign_nop_conversions (CONST_CAST_TREE (EXP))
1001 /* Like STRIP_NOPS, but don't alter the TREE_TYPE either. */
1003 #define STRIP_TYPE_NOPS(EXP) \
1004 while ((CONVERT_EXPR_P (EXP) \
1005 || TREE_CODE (EXP) == NON_LVALUE_EXPR) \
1006 && TREE_OPERAND (EXP, 0) != error_mark_node \
1007 && (TREE_TYPE (EXP) \
1008 == TREE_TYPE (TREE_OPERAND (EXP, 0)))) \
1009 (EXP) = TREE_OPERAND (EXP, 0)
1011 /* Remove unnecessary type conversions according to
1012 tree_ssa_useless_type_conversion. */
1014 #define STRIP_USELESS_TYPE_CONVERSION(EXP) \
1015 (EXP) = tree_ssa_strip_useless_type_conversions (EXP)
1017 /* Nonzero if TYPE represents an integral type. Note that we do not
1018 include COMPLEX types here. Keep these checks in ascending code
1021 #define INTEGRAL_TYPE_P(TYPE) \
1022 (TREE_CODE (TYPE) == ENUMERAL_TYPE \
1023 || TREE_CODE (TYPE) == BOOLEAN_TYPE \
1024 || TREE_CODE (TYPE) == INTEGER_TYPE)
1026 /* Nonzero if TYPE represents a non-saturating fixed-point type. */
1028 #define NON_SAT_FIXED_POINT_TYPE_P(TYPE) \
1029 (TREE_CODE (TYPE) == FIXED_POINT_TYPE && !TYPE_SATURATING (TYPE))
1031 /* Nonzero if TYPE represents a saturating fixed-point type. */
1033 #define SAT_FIXED_POINT_TYPE_P(TYPE) \
1034 (TREE_CODE (TYPE) == FIXED_POINT_TYPE && TYPE_SATURATING (TYPE))
1036 /* Nonzero if TYPE represents a fixed-point type. */
1038 #define FIXED_POINT_TYPE_P(TYPE) (TREE_CODE (TYPE) == FIXED_POINT_TYPE)
1040 /* Nonzero if TYPE represents a scalar floating-point type. */
1042 #define SCALAR_FLOAT_TYPE_P(TYPE) (TREE_CODE (TYPE) == REAL_TYPE)
1044 /* Nonzero if TYPE represents a complex floating-point type. */
1046 #define COMPLEX_FLOAT_TYPE_P(TYPE) \
1047 (TREE_CODE (TYPE) == COMPLEX_TYPE \
1048 && TREE_CODE (TREE_TYPE (TYPE)) == REAL_TYPE)
1050 /* Nonzero if TYPE represents a vector floating-point type. */
1052 #define VECTOR_FLOAT_TYPE_P(TYPE) \
1053 (TREE_CODE (TYPE) == VECTOR_TYPE \
1054 && TREE_CODE (TREE_TYPE (TYPE)) == REAL_TYPE)
1056 /* Nonzero if TYPE represents a floating-point type, including complex
1057 and vector floating-point types. The vector and complex check does
1058 not use the previous two macros to enable early folding. */
1060 #define FLOAT_TYPE_P(TYPE) \
1061 (SCALAR_FLOAT_TYPE_P (TYPE) \
1062 || ((TREE_CODE (TYPE) == COMPLEX_TYPE \
1063 || TREE_CODE (TYPE) == VECTOR_TYPE) \
1064 && SCALAR_FLOAT_TYPE_P (TREE_TYPE (TYPE))))
1066 /* Nonzero if TYPE represents a decimal floating-point type. */
1067 #define DECIMAL_FLOAT_TYPE_P(TYPE) \
1068 (SCALAR_FLOAT_TYPE_P (TYPE) \
1069 && DECIMAL_FLOAT_MODE_P (TYPE_MODE (TYPE)))
1071 /* Nonzero if TYPE is a record or union type. */
1072 #define RECORD_OR_UNION_TYPE_P(TYPE) \
1073 (TREE_CODE (TYPE) == RECORD_TYPE \
1074 || TREE_CODE (TYPE) == UNION_TYPE \
1075 || TREE_CODE (TYPE) == QUAL_UNION_TYPE)
1077 /* Nonzero if TYPE represents an aggregate (multi-component) type.
1078 Keep these checks in ascending code order. */
1080 #define AGGREGATE_TYPE_P(TYPE) \
1081 (TREE_CODE (TYPE) == ARRAY_TYPE || RECORD_OR_UNION_TYPE_P (TYPE))
1083 /* Nonzero if TYPE represents a pointer or reference type.
1084 (It should be renamed to INDIRECT_TYPE_P.) Keep these checks in
1085 ascending code order. */
1087 #define POINTER_TYPE_P(TYPE) \
1088 (TREE_CODE (TYPE) == POINTER_TYPE || TREE_CODE (TYPE) == REFERENCE_TYPE)
1090 /* Nonzero if this type is a complete type. */
1091 #define COMPLETE_TYPE_P(NODE) (TYPE_SIZE (NODE) != NULL_TREE)
1093 /* Nonzero if this type is the (possibly qualified) void type. */
1094 #define VOID_TYPE_P(NODE) (TREE_CODE (NODE) == VOID_TYPE)
1096 /* Nonzero if this type is complete or is cv void. */
1097 #define COMPLETE_OR_VOID_TYPE_P(NODE) \
1098 (COMPLETE_TYPE_P (NODE) || VOID_TYPE_P (NODE))
1100 /* Nonzero if this type is complete or is an array with unspecified bound. */
1101 #define COMPLETE_OR_UNBOUND_ARRAY_TYPE_P(NODE) \
1102 (COMPLETE_TYPE_P (TREE_CODE (NODE) == ARRAY_TYPE ? TREE_TYPE (NODE) : (NODE)))
1105 /* Define many boolean fields that all tree nodes have. */
1107 /* In VAR_DECL, PARM_DECL and RESULT_DECL nodes, nonzero means address
1108 of this is needed. So it cannot be in a register.
1109 In a FUNCTION_DECL, nonzero means its address is needed.
1110 So it must be compiled even if it is an inline function.
1111 In CONSTRUCTOR nodes, it means object constructed must be in memory.
1112 In LABEL_DECL nodes, it means a goto for this label has been seen
1113 from a place outside all binding contours that restore stack levels.
1114 In ..._TYPE nodes, it means that objects of this type must be fully
1115 addressable. This means that pieces of this object cannot go into
1116 register parameters, for example. If this a function type, this
1117 means that the value must be returned in memory.
1118 In IDENTIFIER_NODEs, this means that some extern decl for this name
1119 had its address taken. That matters for inline functions. */
1120 #define TREE_ADDRESSABLE(NODE) ((NODE)->base.addressable_flag)
1122 /* Set on a CALL_EXPR if the call is in a tail position, ie. just before the
1123 exit of a function. Calls for which this is true are candidates for tail
1124 call optimizations. */
1125 #define CALL_EXPR_TAILCALL(NODE) \
1126 (CALL_EXPR_CHECK(NODE)->base.addressable_flag)
1128 /* Used as a temporary field on a CASE_LABEL_EXPR to indicate that the
1129 CASE_LOW operand has been processed. */
1130 #define CASE_LOW_SEEN(NODE) \
1131 (CASE_LABEL_EXPR_CHECK (NODE)->base.addressable_flag)
1133 #define PREDICT_EXPR_OUTCOME(NODE) \
1134 ((enum prediction) (PREDICT_EXPR_CHECK(NODE)->base.addressable_flag))
1135 #define SET_PREDICT_EXPR_OUTCOME(NODE, OUTCOME) \
1136 (PREDICT_EXPR_CHECK(NODE)->base.addressable_flag = (int) OUTCOME)
1137 #define PREDICT_EXPR_PREDICTOR(NODE) \
1138 ((enum br_predictor)tree_low_cst (TREE_OPERAND (PREDICT_EXPR_CHECK (NODE), 0), 0))
1140 /* In a VAR_DECL, nonzero means allocate static storage.
1141 In a FUNCTION_DECL, nonzero if function has been defined.
1142 In a CONSTRUCTOR, nonzero means allocate static storage. */
1143 #define TREE_STATIC(NODE) ((NODE)->base.static_flag)
1145 /* In an ADDR_EXPR, nonzero means do not use a trampoline. */
1146 #define TREE_NO_TRAMPOLINE(NODE) (ADDR_EXPR_CHECK (NODE)->base.static_flag)
1148 /* In a TARGET_EXPR or WITH_CLEANUP_EXPR, means that the pertinent cleanup
1149 should only be executed if an exception is thrown, not on normal exit
1151 #define CLEANUP_EH_ONLY(NODE) ((NODE)->base.static_flag)
1153 /* In a TRY_CATCH_EXPR, means that the handler should be considered a
1154 separate cleanup in honor_protect_cleanup_actions. */
1155 #define TRY_CATCH_IS_CLEANUP(NODE) \
1156 (TRY_CATCH_EXPR_CHECK (NODE)->base.static_flag)
1158 /* Used as a temporary field on a CASE_LABEL_EXPR to indicate that the
1159 CASE_HIGH operand has been processed. */
1160 #define CASE_HIGH_SEEN(NODE) \
1161 (CASE_LABEL_EXPR_CHECK (NODE)->base.static_flag)
1163 /* Used to mark a CALL_EXPR as not suitable for inlining. */
1164 #define CALL_CANNOT_INLINE_P(NODE) (CALL_EXPR_CHECK (NODE)->base.static_flag)
1166 /* Used to mark scoped enums. */
1167 #define ENUM_IS_SCOPED(NODE) (ENUMERAL_TYPE_CHECK (NODE)->base.static_flag)
1169 /* In an expr node (usually a conversion) this means the node was made
1170 implicitly and should not lead to any sort of warning. In a decl node,
1171 warnings concerning the decl should be suppressed. This is used at
1172 least for used-before-set warnings, and it set after one warning is
1174 #define TREE_NO_WARNING(NODE) ((NODE)->base.nowarning_flag)
1176 /* In an IDENTIFIER_NODE, this means that assemble_name was called with
1177 this string as an argument. */
1178 #define TREE_SYMBOL_REFERENCED(NODE) \
1179 (IDENTIFIER_NODE_CHECK (NODE)->base.static_flag)
1181 /* Nonzero in a pointer or reference type means the data pointed to
1182 by this type can alias anything. */
1183 #define TYPE_REF_CAN_ALIAS_ALL(NODE) \
1184 (PTR_OR_REF_CHECK (NODE)->base.static_flag)
1186 /* In a MODIFY_EXPR, means that the store in the expression is nontemporal. */
1187 #define MOVE_NONTEMPORAL(NODE) \
1188 (EXPR_CHECK (NODE)->base.static_flag)
1190 /* In an INTEGER_CST, REAL_CST, COMPLEX_CST, or VECTOR_CST, this means
1191 there was an overflow in folding. */
1193 #define TREE_OVERFLOW(NODE) (CST_CHECK (NODE)->base.public_flag)
1195 /* TREE_OVERFLOW can only be true for EXPR of CONSTANT_CLASS_P. */
1197 #define TREE_OVERFLOW_P(EXPR) \
1198 (CONSTANT_CLASS_P (EXPR) && TREE_OVERFLOW (EXPR))
1200 /* In a VAR_DECL, FUNCTION_DECL, NAMESPACE_DECL or TYPE_DECL,
1201 nonzero means name is to be accessible from outside this translation unit.
1202 In an IDENTIFIER_NODE, nonzero means an external declaration
1203 accessible from outside this translation unit was previously seen
1204 for this name in an inner scope. */
1205 #define TREE_PUBLIC(NODE) ((NODE)->base.public_flag)
1207 /* In a _TYPE, indicates whether TYPE_CACHED_VALUES contains a vector
1208 of cached values, or is something else. */
1209 #define TYPE_CACHED_VALUES_P(NODE) (TYPE_CHECK(NODE)->base.public_flag)
1211 /* In a SAVE_EXPR, indicates that the original expression has already
1212 been substituted with a VAR_DECL that contains the value. */
1213 #define SAVE_EXPR_RESOLVED_P(NODE) \
1214 (SAVE_EXPR_CHECK (NODE)->base.public_flag)
1216 /* Set on a CALL_EXPR if this stdarg call should be passed the argument
1218 #define CALL_EXPR_VA_ARG_PACK(NODE) \
1219 (CALL_EXPR_CHECK(NODE)->base.public_flag)
1221 /* In any expression, decl, or constant, nonzero means it has side effects or
1222 reevaluation of the whole expression could produce a different value.
1223 This is set if any subexpression is a function call, a side effect or a
1224 reference to a volatile variable. In a ..._DECL, this is set only if the
1225 declaration said `volatile'. This will never be set for a constant. */
1226 #define TREE_SIDE_EFFECTS(NODE) \
1227 (NON_TYPE_CHECK (NODE)->base.side_effects_flag)
1229 /* In a LABEL_DECL, nonzero means this label had its address taken
1230 and therefore can never be deleted and is a jump target for
1232 #define FORCED_LABEL(NODE) (LABEL_DECL_CHECK (NODE)->base.side_effects_flag)
1234 /* Nonzero means this expression is volatile in the C sense:
1235 its address should be of type `volatile WHATEVER *'.
1236 In other words, the declared item is volatile qualified.
1237 This is used in _DECL nodes and _REF nodes.
1238 On a FUNCTION_DECL node, this means the function does not
1239 return normally. This is the same effect as setting
1240 the attribute noreturn on the function in C.
1242 In a ..._TYPE node, means this type is volatile-qualified.
1243 But use TYPE_VOLATILE instead of this macro when the node is a type,
1244 because eventually we may make that a different bit.
1246 If this bit is set in an expression, so is TREE_SIDE_EFFECTS. */
1247 #define TREE_THIS_VOLATILE(NODE) ((NODE)->base.volatile_flag)
1249 /* Nonzero means this node will not trap. In an INDIRECT_REF, means
1250 accessing the memory pointed to won't generate a trap. However,
1251 this only applies to an object when used appropriately: it doesn't
1252 mean that writing a READONLY mem won't trap. Similarly for
1253 ALIGN_INDIRECT_REF and MISALIGNED_INDIRECT_REF.
1255 In ARRAY_REF and ARRAY_RANGE_REF means that we know that the index
1256 (or slice of the array) always belongs to the range of the array.
1257 I.e. that the access will not trap, provided that the access to
1258 the base to the array will not trap. */
1259 #define TREE_THIS_NOTRAP(NODE) ((NODE)->base.nothrow_flag)
1261 /* In a VAR_DECL, PARM_DECL or FIELD_DECL, or any kind of ..._REF node,
1262 nonzero means it may not be the lhs of an assignment.
1263 Nonzero in a FUNCTION_DECL means this function should be treated
1264 as "const" function (can only read its arguments). */
1265 #define TREE_READONLY(NODE) (NON_TYPE_CHECK (NODE)->base.readonly_flag)
1267 /* Value of expression is constant. Always on in all ..._CST nodes. May
1268 also appear in an expression or decl where the value is constant. */
1269 #define TREE_CONSTANT(NODE) (NON_TYPE_CHECK (NODE)->base.constant_flag)
1271 /* Nonzero if NODE, a type, has had its sizes gimplified. */
1272 #define TYPE_SIZES_GIMPLIFIED(NODE) \
1273 (TYPE_CHECK (NODE)->base.constant_flag)
1275 /* In a decl (most significantly a FIELD_DECL), means an unsigned field. */
1276 #define DECL_UNSIGNED(NODE) \
1277 (DECL_COMMON_CHECK (NODE)->base.unsigned_flag)
1279 /* In integral and pointer types, means an unsigned type. */
1280 #define TYPE_UNSIGNED(NODE) (TYPE_CHECK (NODE)->base.unsigned_flag)
1282 /* Nonzero in a VAR_DECL or STRING_CST means assembler code has been written.
1283 Nonzero in a FUNCTION_DECL means that the function has been compiled.
1284 This is interesting in an inline function, since it might not need
1285 to be compiled separately.
1286 Nonzero in a RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE or ENUMERAL_TYPE
1287 if the debugging info for the type has been written.
1288 In a BLOCK node, nonzero if reorder_blocks has already seen this block.
1289 In an SSA_NAME node, nonzero if the SSA_NAME occurs in an abnormal
1291 #define TREE_ASM_WRITTEN(NODE) ((NODE)->base.asm_written_flag)
1293 /* Nonzero in a _DECL if the name is used in its scope.
1294 Nonzero in an expr node means inhibit warning if value is unused.
1295 In IDENTIFIER_NODEs, this means that some extern decl for this name
1297 In a BLOCK, this means that the block contains variables that are used. */
1298 #define TREE_USED(NODE) ((NODE)->base.used_flag)
1300 /* In a FUNCTION_DECL, nonzero means a call to the function cannot throw
1301 an exception. In a CALL_EXPR, nonzero means the call cannot throw. */
1302 #define TREE_NOTHROW(NODE) ((NODE)->base.nothrow_flag)
1304 /* In a CALL_EXPR, means that it's safe to use the target of the call
1305 expansion as the return slot for a call that returns in memory. */
1306 #define CALL_EXPR_RETURN_SLOT_OPT(NODE) \
1307 (CALL_EXPR_CHECK (NODE)->base.private_flag)
1309 /* In a RESULT_DECL, PARM_DECL and VAR_DECL, means that it is
1310 passed by invisible reference (and the TREE_TYPE is a pointer to the true
1312 #define DECL_BY_REFERENCE(NODE) \
1313 (TREE_CHECK3 (NODE, VAR_DECL, PARM_DECL, \
1314 RESULT_DECL)->decl_common.decl_by_reference_flag)
1316 /* In a RESULT_DECL, PARM_DECL and VAR_DECL, means that this decl
1317 can be used as restricted tag to disambiguate against other restrict
1318 pointers. Used by fortran to capture something like non-addressability
1319 (which it isn't really because the middle-end does take addresses of
1321 #define DECL_RESTRICTED_P(NODE) \
1322 (TREE_CHECK3 (NODE, VAR_DECL, PARM_DECL, \
1323 RESULT_DECL)->decl_common.decl_restricted_flag)
1325 #define DECL_READ_P(NODE) \
1326 (TREE_CHECK2 (NODE, VAR_DECL, PARM_DECL)->decl_common.decl_read_flag)
1328 /* In a CALL_EXPR, means that the call is the jump from a thunk to the
1329 thunked-to function. */
1330 #define CALL_FROM_THUNK_P(NODE) (CALL_EXPR_CHECK (NODE)->base.protected_flag)
1332 /* In a type, nonzero means that all objects of the type are guaranteed by the
1333 language or front-end to be properly aligned, so we can indicate that a MEM
1334 of this type is aligned at least to the alignment of the type, even if it
1335 doesn't appear that it is. We see this, for example, in object-oriented
1336 languages where a tag field may show this is an object of a more-aligned
1337 variant of the more generic type.
1339 In an SSA_NAME node, nonzero if the SSA_NAME node is on the SSA_NAME
1341 #define TYPE_ALIGN_OK(NODE) (TYPE_CHECK (NODE)->base.nothrow_flag)
1343 /* Used in classes in C++. */
1344 #define TREE_PRIVATE(NODE) ((NODE)->base.private_flag)
1345 /* Used in classes in C++. */
1346 #define TREE_PROTECTED(NODE) ((NODE)->base.protected_flag)
1348 /* True if reference type NODE is a C++ rvalue reference. */
1349 #define TYPE_REF_IS_RVALUE(NODE) \
1350 (REFERENCE_TYPE_CHECK (NODE)->base.private_flag)
1352 /* Nonzero in a _DECL if the use of the name is defined as a
1353 deprecated feature by __attribute__((deprecated)). */
1354 #define TREE_DEPRECATED(NODE) \
1355 ((NODE)->base.deprecated_flag)
1357 /* Nonzero in an IDENTIFIER_NODE if the name is a local alias, whose
1358 uses are to be substituted for uses of the TREE_CHAINed identifier. */
1359 #define IDENTIFIER_TRANSPARENT_ALIAS(NODE) \
1360 (IDENTIFIER_NODE_CHECK (NODE)->base.deprecated_flag)
1362 /* In fixed-point types, means a saturating type. */
1363 #define TYPE_SATURATING(NODE) ((NODE)->base.saturating_flag)
1365 /* These flags are available for each language front end to use internally. */
1366 #define TREE_LANG_FLAG_0(NODE) ((NODE)->base.lang_flag_0)
1367 #define TREE_LANG_FLAG_1(NODE) ((NODE)->base.lang_flag_1)
1368 #define TREE_LANG_FLAG_2(NODE) ((NODE)->base.lang_flag_2)
1369 #define TREE_LANG_FLAG_3(NODE) ((NODE)->base.lang_flag_3)
1370 #define TREE_LANG_FLAG_4(NODE) ((NODE)->base.lang_flag_4)
1371 #define TREE_LANG_FLAG_5(NODE) ((NODE)->base.lang_flag_5)
1372 #define TREE_LANG_FLAG_6(NODE) ((NODE)->base.lang_flag_6)
1374 /* Define additional fields and accessors for nodes representing constants. */
1376 /* In an INTEGER_CST node. These two together make a 2-word integer.
1377 If the data type is signed, the value is sign-extended to 2 words
1378 even though not all of them may really be in use.
1379 In an unsigned constant shorter than 2 words, the extra bits are 0. */
1380 #define TREE_INT_CST(NODE) (INTEGER_CST_CHECK (NODE)->int_cst.int_cst)
1381 #define TREE_INT_CST_LOW(NODE) (TREE_INT_CST (NODE).low)
1382 #define TREE_INT_CST_HIGH(NODE) (TREE_INT_CST (NODE).high)
1384 #define INT_CST_LT(A, B) \
1385 (TREE_INT_CST_HIGH (A) < TREE_INT_CST_HIGH (B) \
1386 || (TREE_INT_CST_HIGH (A) == TREE_INT_CST_HIGH (B) \
1387 && TREE_INT_CST_LOW (A) < TREE_INT_CST_LOW (B)))
1389 #define INT_CST_LT_UNSIGNED(A, B) \
1390 (((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \
1391 < (unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (B)) \
1392 || (((unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (A) \
1393 == (unsigned HOST_WIDE_INT) TREE_INT_CST_HIGH (B)) \
1394 && TREE_INT_CST_LOW (A) < TREE_INT_CST_LOW (B)))
1396 struct GTY(()) tree_int_cst {
1397 struct tree_common common;
1401 /* In a REAL_CST node. struct real_value is an opaque entity, with
1402 manipulators defined in real.h. We don't want tree.h depending on
1403 real.h and transitively on tm.h. */
1406 #define TREE_REAL_CST_PTR(NODE) (REAL_CST_CHECK (NODE)->real_cst.real_cst_ptr)
1407 #define TREE_REAL_CST(NODE) (*TREE_REAL_CST_PTR (NODE))
1409 struct GTY(()) tree_real_cst {
1410 struct tree_common common;
1411 struct real_value * real_cst_ptr;
1414 /* In a FIXED_CST node. */
1417 #define TREE_FIXED_CST_PTR(NODE) \
1418 (FIXED_CST_CHECK (NODE)->fixed_cst.fixed_cst_ptr)
1419 #define TREE_FIXED_CST(NODE) (*TREE_FIXED_CST_PTR (NODE))
1421 struct GTY(()) tree_fixed_cst {
1422 struct tree_common common;
1423 struct fixed_value * fixed_cst_ptr;
1426 /* In a STRING_CST */
1427 #define TREE_STRING_LENGTH(NODE) (STRING_CST_CHECK (NODE)->string.length)
1428 #define TREE_STRING_POINTER(NODE) \
1429 ((const char *)(STRING_CST_CHECK (NODE)->string.str))
1431 struct GTY(()) tree_string {
1432 struct tree_common common;
1437 /* In a COMPLEX_CST node. */
1438 #define TREE_REALPART(NODE) (COMPLEX_CST_CHECK (NODE)->complex.real)
1439 #define TREE_IMAGPART(NODE) (COMPLEX_CST_CHECK (NODE)->complex.imag)
1441 struct GTY(()) tree_complex {
1442 struct tree_common common;
1447 /* In a VECTOR_CST node. */
1448 #define TREE_VECTOR_CST_ELTS(NODE) (VECTOR_CST_CHECK (NODE)->vector.elements)
1450 struct GTY(()) tree_vector {
1451 struct tree_common common;
1457 /* Define fields and accessors for some special-purpose tree nodes. */
1459 #define IDENTIFIER_LENGTH(NODE) \
1460 (IDENTIFIER_NODE_CHECK (NODE)->identifier.id.len)
1461 #define IDENTIFIER_POINTER(NODE) \
1462 ((const char *) IDENTIFIER_NODE_CHECK (NODE)->identifier.id.str)
1463 #define IDENTIFIER_HASH_VALUE(NODE) \
1464 (IDENTIFIER_NODE_CHECK (NODE)->identifier.id.hash_value)
1466 /* Translate a hash table identifier pointer to a tree_identifier
1467 pointer, and vice versa. */
1469 #define HT_IDENT_TO_GCC_IDENT(NODE) \
1470 ((tree) ((char *) (NODE) - sizeof (struct tree_common)))
1471 #define GCC_IDENT_TO_HT_IDENT(NODE) (&((struct tree_identifier *) (NODE))->id)
1473 struct GTY(()) tree_identifier {
1474 struct tree_common common;
1475 struct ht_identifier id;
1478 /* In a TREE_LIST node. */
1479 #define TREE_PURPOSE(NODE) (TREE_LIST_CHECK (NODE)->list.purpose)
1480 #define TREE_VALUE(NODE) (TREE_LIST_CHECK (NODE)->list.value)
1482 struct GTY(()) tree_list {
1483 struct tree_common common;
1488 /* In a TREE_VEC node. */
1489 #define TREE_VEC_LENGTH(NODE) (TREE_VEC_CHECK (NODE)->vec.length)
1490 #define TREE_VEC_END(NODE) \
1491 ((void) TREE_VEC_CHECK (NODE), &((NODE)->vec.a[(NODE)->vec.length]))
1493 #define TREE_VEC_ELT(NODE,I) TREE_VEC_ELT_CHECK (NODE, I)
1495 struct GTY(()) tree_vec {
1496 struct tree_common common;
1498 tree GTY ((length ("TREE_VEC_LENGTH ((tree)&%h)"))) a[1];
1501 /* In a CONSTRUCTOR node. */
1502 #define CONSTRUCTOR_ELTS(NODE) (CONSTRUCTOR_CHECK (NODE)->constructor.elts)
1503 #define CONSTRUCTOR_ELT(NODE,IDX) \
1504 (VEC_index (constructor_elt, CONSTRUCTOR_ELTS (NODE), IDX))
1505 #define CONSTRUCTOR_NELTS(NODE) \
1506 (VEC_length (constructor_elt, CONSTRUCTOR_ELTS (NODE)))
1508 /* Iterate through the vector V of CONSTRUCTOR_ELT elements, yielding the
1509 value of each element (stored within VAL). IX must be a scratch variable
1510 of unsigned integer type. */
1511 #define FOR_EACH_CONSTRUCTOR_VALUE(V, IX, VAL) \
1512 for (IX = 0; (IX >= VEC_length (constructor_elt, V)) \
1514 : ((VAL = VEC_index (constructor_elt, V, IX)->value), \
1518 /* Iterate through the vector V of CONSTRUCTOR_ELT elements, yielding both
1519 the value of each element (stored within VAL) and its index (stored
1520 within INDEX). IX must be a scratch variable of unsigned integer type. */
1521 #define FOR_EACH_CONSTRUCTOR_ELT(V, IX, INDEX, VAL) \
1522 for (IX = 0; (IX >= VEC_length (constructor_elt, V)) \
1524 : (((void) (VAL = VEC_index (constructor_elt, V, IX)->value)), \
1525 (INDEX = VEC_index (constructor_elt, V, IX)->index), \
1529 /* Append a new constructor element to V, with the specified INDEX and VAL. */
1530 #define CONSTRUCTOR_APPEND_ELT(V, INDEX, VALUE) \
1532 constructor_elt *_ce___ = VEC_safe_push (constructor_elt, gc, V, NULL); \
1533 _ce___->index = INDEX; \
1534 _ce___->value = VALUE; \
1537 /* True if NODE, a FIELD_DECL, is to be processed as a bitfield for
1538 constructor output purposes. */
1539 #define CONSTRUCTOR_BITFIELD_P(NODE) \
1540 (DECL_BIT_FIELD (FIELD_DECL_CHECK (NODE)) && DECL_MODE (NODE) != BLKmode)
1542 /* A single element of a CONSTRUCTOR. VALUE holds the actual value of the
1543 element. INDEX can optionally design the position of VALUE: in arrays,
1544 it is the index where VALUE has to be placed; in structures, it is the
1545 FIELD_DECL of the member. */
1546 typedef struct GTY(()) constructor_elt_d {
1551 DEF_VEC_O(constructor_elt);
1552 DEF_VEC_ALLOC_O(constructor_elt,gc);
1554 struct GTY(()) tree_constructor {
1555 struct tree_common common;
1556 VEC(constructor_elt,gc) *elts;
1559 /* Define fields and accessors for some nodes that represent expressions. */
1561 /* Nonzero if NODE is an empty statement (NOP_EXPR <0>). */
1562 #define IS_EMPTY_STMT(NODE) (TREE_CODE (NODE) == NOP_EXPR \
1563 && VOID_TYPE_P (TREE_TYPE (NODE)) \
1564 && integer_zerop (TREE_OPERAND (NODE, 0)))
1566 /* In ordinary expression nodes. */
1567 #define TREE_OPERAND_LENGTH(NODE) tree_operand_length (NODE)
1568 #define TREE_OPERAND(NODE, I) TREE_OPERAND_CHECK (NODE, I)
1570 /* In a tcc_vl_exp node, operand 0 is an INT_CST node holding the operand
1571 length. Its value includes the length operand itself; that is,
1572 the minimum valid length is 1.
1573 Note that we have to bypass the use of TREE_OPERAND to access
1574 that field to avoid infinite recursion in expanding the macros. */
1575 #define VL_EXP_OPERAND_LENGTH(NODE) \
1576 ((int)TREE_INT_CST_LOW (VL_EXP_CHECK (NODE)->exp.operands[0]))
1578 /* Nonzero if is_gimple_debug() may possibly hold. */
1579 #define MAY_HAVE_DEBUG_STMTS (flag_var_tracking_assignments)
1581 /* In a LOOP_EXPR node. */
1582 #define LOOP_EXPR_BODY(NODE) TREE_OPERAND_CHECK_CODE (NODE, LOOP_EXPR, 0)
1584 /* The source location of this expression. Non-tree_exp nodes such as
1585 decls and constants can be shared among multiple locations, so
1587 #define EXPR_LOCATION(NODE) \
1588 (EXPR_P ((NODE)) ? (NODE)->exp.locus : UNKNOWN_LOCATION)
1589 #define SET_EXPR_LOCATION(NODE, LOCUS) EXPR_CHECK ((NODE))->exp.locus = (LOCUS)
1590 #define EXPR_HAS_LOCATION(NODE) (EXPR_LOCATION (NODE) != UNKNOWN_LOCATION)
1591 #define EXPR_FILENAME(NODE) LOCATION_FILE (EXPR_CHECK ((NODE))->exp.locus)
1592 #define EXPR_LINENO(NODE) LOCATION_LINE (EXPR_CHECK (NODE)->exp.locus)
1594 /* True if a tree is an expression or statement that can have a
1596 #define CAN_HAVE_LOCATION_P(NODE) ((NODE) && EXPR_P (NODE))
1598 extern void protected_set_expr_location (tree, location_t);
1600 /* In a TARGET_EXPR node. */
1601 #define TARGET_EXPR_SLOT(NODE) TREE_OPERAND_CHECK_CODE (NODE, TARGET_EXPR, 0)
1602 #define TARGET_EXPR_INITIAL(NODE) TREE_OPERAND_CHECK_CODE (NODE, TARGET_EXPR, 1)
1603 #define TARGET_EXPR_CLEANUP(NODE) TREE_OPERAND_CHECK_CODE (NODE, TARGET_EXPR, 2)
1605 /* DECL_EXPR accessor. This gives access to the DECL associated with
1606 the given declaration statement. */
1607 #define DECL_EXPR_DECL(NODE) TREE_OPERAND (DECL_EXPR_CHECK (NODE), 0)
1609 #define EXIT_EXPR_COND(NODE) TREE_OPERAND (EXIT_EXPR_CHECK (NODE), 0)
1611 /* COMPOUND_LITERAL_EXPR accessors. */
1612 #define COMPOUND_LITERAL_EXPR_DECL_EXPR(NODE) \
1613 TREE_OPERAND (COMPOUND_LITERAL_EXPR_CHECK (NODE), 0)
1614 #define COMPOUND_LITERAL_EXPR_DECL(NODE) \
1615 DECL_EXPR_DECL (COMPOUND_LITERAL_EXPR_DECL_EXPR (NODE))
1617 /* SWITCH_EXPR accessors. These give access to the condition, body and
1618 original condition type (before any compiler conversions)
1619 of the switch statement, respectively. */
1620 #define SWITCH_COND(NODE) TREE_OPERAND (SWITCH_EXPR_CHECK (NODE), 0)
1621 #define SWITCH_BODY(NODE) TREE_OPERAND (SWITCH_EXPR_CHECK (NODE), 1)
1622 #define SWITCH_LABELS(NODE) TREE_OPERAND (SWITCH_EXPR_CHECK (NODE), 2)
1624 /* CASE_LABEL_EXPR accessors. These give access to the high and low values
1625 of a case label, respectively. */
1626 #define CASE_LOW(NODE) TREE_OPERAND (CASE_LABEL_EXPR_CHECK (NODE), 0)
1627 #define CASE_HIGH(NODE) TREE_OPERAND (CASE_LABEL_EXPR_CHECK (NODE), 1)
1628 #define CASE_LABEL(NODE) TREE_OPERAND (CASE_LABEL_EXPR_CHECK (NODE), 2)
1630 /* The operands of a TARGET_MEM_REF. */
1631 #define TMR_SYMBOL(NODE) (TREE_OPERAND (TARGET_MEM_REF_CHECK (NODE), 0))
1632 #define TMR_BASE(NODE) (TREE_OPERAND (TARGET_MEM_REF_CHECK (NODE), 1))
1633 #define TMR_INDEX(NODE) (TREE_OPERAND (TARGET_MEM_REF_CHECK (NODE), 2))
1634 #define TMR_STEP(NODE) (TREE_OPERAND (TARGET_MEM_REF_CHECK (NODE), 3))
1635 #define TMR_OFFSET(NODE) (TREE_OPERAND (TARGET_MEM_REF_CHECK (NODE), 4))
1636 #define TMR_ORIGINAL(NODE) (TREE_OPERAND (TARGET_MEM_REF_CHECK (NODE), 5))
1638 /* The operands of a BIND_EXPR. */
1639 #define BIND_EXPR_VARS(NODE) (TREE_OPERAND (BIND_EXPR_CHECK (NODE), 0))
1640 #define BIND_EXPR_BODY(NODE) (TREE_OPERAND (BIND_EXPR_CHECK (NODE), 1))
1641 #define BIND_EXPR_BLOCK(NODE) (TREE_OPERAND (BIND_EXPR_CHECK (NODE), 2))
1643 /* GOTO_EXPR accessor. This gives access to the label associated with
1644 a goto statement. */
1645 #define GOTO_DESTINATION(NODE) TREE_OPERAND ((NODE), 0)
1647 /* ASM_EXPR accessors. ASM_STRING returns a STRING_CST for the
1648 instruction (e.g., "mov x, y"). ASM_OUTPUTS, ASM_INPUTS, and
1649 ASM_CLOBBERS represent the outputs, inputs, and clobbers for the
1651 #define ASM_STRING(NODE) TREE_OPERAND (ASM_EXPR_CHECK (NODE), 0)
1652 #define ASM_OUTPUTS(NODE) TREE_OPERAND (ASM_EXPR_CHECK (NODE), 1)
1653 #define ASM_INPUTS(NODE) TREE_OPERAND (ASM_EXPR_CHECK (NODE), 2)
1654 #define ASM_CLOBBERS(NODE) TREE_OPERAND (ASM_EXPR_CHECK (NODE), 3)
1655 #define ASM_LABELS(NODE) TREE_OPERAND (ASM_EXPR_CHECK (NODE), 4)
1656 /* Nonzero if we want to create an ASM_INPUT instead of an
1657 ASM_OPERAND with no operands. */
1658 #define ASM_INPUT_P(NODE) (ASM_EXPR_CHECK (NODE)->base.static_flag)
1659 #define ASM_VOLATILE_P(NODE) (ASM_EXPR_CHECK (NODE)->base.public_flag)
1661 /* COND_EXPR accessors. */
1662 #define COND_EXPR_COND(NODE) (TREE_OPERAND (COND_EXPR_CHECK (NODE), 0))
1663 #define COND_EXPR_THEN(NODE) (TREE_OPERAND (COND_EXPR_CHECK (NODE), 1))
1664 #define COND_EXPR_ELSE(NODE) (TREE_OPERAND (COND_EXPR_CHECK (NODE), 2))
1666 /* Accessors for the chains of recurrences. */
1667 #define CHREC_VAR(NODE) TREE_OPERAND (POLYNOMIAL_CHREC_CHECK (NODE), 0)
1668 #define CHREC_LEFT(NODE) TREE_OPERAND (POLYNOMIAL_CHREC_CHECK (NODE), 1)
1669 #define CHREC_RIGHT(NODE) TREE_OPERAND (POLYNOMIAL_CHREC_CHECK (NODE), 2)
1670 #define CHREC_VARIABLE(NODE) TREE_INT_CST_LOW (CHREC_VAR (NODE))
1672 /* LABEL_EXPR accessor. This gives access to the label associated with
1673 the given label expression. */
1674 #define LABEL_EXPR_LABEL(NODE) TREE_OPERAND (LABEL_EXPR_CHECK (NODE), 0)
1676 /* VDEF_EXPR accessors are specified in tree-flow.h, along with the other
1677 accessors for SSA operands. */
1679 /* CATCH_EXPR accessors. */
1680 #define CATCH_TYPES(NODE) TREE_OPERAND (CATCH_EXPR_CHECK (NODE), 0)
1681 #define CATCH_BODY(NODE) TREE_OPERAND (CATCH_EXPR_CHECK (NODE), 1)
1683 /* EH_FILTER_EXPR accessors. */
1684 #define EH_FILTER_TYPES(NODE) TREE_OPERAND (EH_FILTER_EXPR_CHECK (NODE), 0)
1685 #define EH_FILTER_FAILURE(NODE) TREE_OPERAND (EH_FILTER_EXPR_CHECK (NODE), 1)
1687 /* OBJ_TYPE_REF accessors. */
1688 #define OBJ_TYPE_REF_EXPR(NODE) TREE_OPERAND (OBJ_TYPE_REF_CHECK (NODE), 0)
1689 #define OBJ_TYPE_REF_OBJECT(NODE) TREE_OPERAND (OBJ_TYPE_REF_CHECK (NODE), 1)
1690 #define OBJ_TYPE_REF_TOKEN(NODE) TREE_OPERAND (OBJ_TYPE_REF_CHECK (NODE), 2)
1692 /* ASSERT_EXPR accessors. */
1693 #define ASSERT_EXPR_VAR(NODE) TREE_OPERAND (ASSERT_EXPR_CHECK (NODE), 0)
1694 #define ASSERT_EXPR_COND(NODE) TREE_OPERAND (ASSERT_EXPR_CHECK (NODE), 1)
1696 /* CALL_EXPR accessors.
1698 #define CALL_EXPR_FN(NODE) TREE_OPERAND (CALL_EXPR_CHECK (NODE), 1)
1699 #define CALL_EXPR_STATIC_CHAIN(NODE) TREE_OPERAND (CALL_EXPR_CHECK (NODE), 2)
1700 #define CALL_EXPR_ARG(NODE, I) TREE_OPERAND (CALL_EXPR_CHECK (NODE), (I) + 3)
1701 #define call_expr_nargs(NODE) (VL_EXP_OPERAND_LENGTH(NODE) - 3)
1703 /* CALL_EXPR_ARGP returns a pointer to the argument vector for NODE.
1704 We can't use &CALL_EXPR_ARG (NODE, 0) because that will complain if
1705 the argument count is zero when checking is enabled. Instead, do
1706 the pointer arithmetic to advance past the 3 fixed operands in a
1707 CALL_EXPR. That produces a valid pointer to just past the end of the
1708 operand array, even if it's not valid to dereference it. */
1709 #define CALL_EXPR_ARGP(NODE) \
1710 (&(TREE_OPERAND (CALL_EXPR_CHECK (NODE), 0)) + 3)
1712 /* OpenMP directive and clause accessors. */
1714 #define OMP_BODY(NODE) \
1715 TREE_OPERAND (TREE_RANGE_CHECK (NODE, OMP_PARALLEL, OMP_CRITICAL), 0)
1716 #define OMP_CLAUSES(NODE) \
1717 TREE_OPERAND (TREE_RANGE_CHECK (NODE, OMP_PARALLEL, OMP_SINGLE), 1)
1719 #define OMP_PARALLEL_BODY(NODE) TREE_OPERAND (OMP_PARALLEL_CHECK (NODE), 0)
1720 #define OMP_PARALLEL_CLAUSES(NODE) TREE_OPERAND (OMP_PARALLEL_CHECK (NODE), 1)
1722 #define OMP_TASK_BODY(NODE) TREE_OPERAND (OMP_TASK_CHECK (NODE), 0)
1723 #define OMP_TASK_CLAUSES(NODE) TREE_OPERAND (OMP_TASK_CHECK (NODE), 1)
1725 #define OMP_TASKREG_CHECK(NODE) TREE_RANGE_CHECK (NODE, OMP_PARALLEL, OMP_TASK)
1726 #define OMP_TASKREG_BODY(NODE) TREE_OPERAND (OMP_TASKREG_CHECK (NODE), 0)
1727 #define OMP_TASKREG_CLAUSES(NODE) TREE_OPERAND (OMP_TASKREG_CHECK (NODE), 1)
1729 #define OMP_FOR_BODY(NODE) TREE_OPERAND (OMP_FOR_CHECK (NODE), 0)
1730 #define OMP_FOR_CLAUSES(NODE) TREE_OPERAND (OMP_FOR_CHECK (NODE), 1)
1731 #define OMP_FOR_INIT(NODE) TREE_OPERAND (OMP_FOR_CHECK (NODE), 2)
1732 #define OMP_FOR_COND(NODE) TREE_OPERAND (OMP_FOR_CHECK (NODE), 3)
1733 #define OMP_FOR_INCR(NODE) TREE_OPERAND (OMP_FOR_CHECK (NODE), 4)
1734 #define OMP_FOR_PRE_BODY(NODE) TREE_OPERAND (OMP_FOR_CHECK (NODE), 5)
1736 #define OMP_SECTIONS_BODY(NODE) TREE_OPERAND (OMP_SECTIONS_CHECK (NODE), 0)
1737 #define OMP_SECTIONS_CLAUSES(NODE) TREE_OPERAND (OMP_SECTIONS_CHECK (NODE), 1)
1739 #define OMP_SECTION_BODY(NODE) TREE_OPERAND (OMP_SECTION_CHECK (NODE), 0)
1741 #define OMP_SINGLE_BODY(NODE) TREE_OPERAND (OMP_SINGLE_CHECK (NODE), 0)
1742 #define OMP_SINGLE_CLAUSES(NODE) TREE_OPERAND (OMP_SINGLE_CHECK (NODE), 1)
1744 #define OMP_MASTER_BODY(NODE) TREE_OPERAND (OMP_MASTER_CHECK (NODE), 0)
1746 #define OMP_ORDERED_BODY(NODE) TREE_OPERAND (OMP_ORDERED_CHECK (NODE), 0)
1748 #define OMP_CRITICAL_BODY(NODE) TREE_OPERAND (OMP_CRITICAL_CHECK (NODE), 0)
1749 #define OMP_CRITICAL_NAME(NODE) TREE_OPERAND (OMP_CRITICAL_CHECK (NODE), 1)
1751 #define OMP_CLAUSE_CHAIN(NODE) TREE_CHAIN (OMP_CLAUSE_CHECK (NODE))
1752 #define OMP_CLAUSE_DECL(NODE) \
1753 OMP_CLAUSE_OPERAND (OMP_CLAUSE_RANGE_CHECK (OMP_CLAUSE_CHECK (NODE), \
1754 OMP_CLAUSE_PRIVATE, \
1755 OMP_CLAUSE_COPYPRIVATE), 0)
1756 #define OMP_CLAUSE_HAS_LOCATION(NODE) \
1757 ((OMP_CLAUSE_CHECK (NODE))->omp_clause.locus != UNKNOWN_LOCATION)
1758 #define OMP_CLAUSE_LOCATION(NODE) (OMP_CLAUSE_CHECK (NODE))->omp_clause.locus
1760 /* True on an OMP_SECTION statement that was the last lexical member.
1761 This status is meaningful in the implementation of lastprivate. */
1762 #define OMP_SECTION_LAST(NODE) \
1763 (OMP_SECTION_CHECK (NODE)->base.private_flag)
1765 /* True on an OMP_PARALLEL statement if it represents an explicit
1766 combined parallel work-sharing constructs. */
1767 #define OMP_PARALLEL_COMBINED(NODE) \
1768 (OMP_PARALLEL_CHECK (NODE)->base.private_flag)
1770 /* True on a PRIVATE clause if its decl is kept around for debugging
1771 information only and its DECL_VALUE_EXPR is supposed to point
1772 to what it has been remapped to. */
1773 #define OMP_CLAUSE_PRIVATE_DEBUG(NODE) \
1774 (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_PRIVATE)->base.public_flag)
1776 /* True on a PRIVATE clause if ctor needs access to outer region's
1778 #define OMP_CLAUSE_PRIVATE_OUTER_REF(NODE) \
1779 TREE_PRIVATE (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_PRIVATE))
1781 /* True on a LASTPRIVATE clause if a FIRSTPRIVATE clause for the same
1782 decl is present in the chain. */
1783 #define OMP_CLAUSE_LASTPRIVATE_FIRSTPRIVATE(NODE) \
1784 (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_LASTPRIVATE)->base.public_flag)
1785 #define OMP_CLAUSE_LASTPRIVATE_STMT(NODE) \
1786 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, \
1787 OMP_CLAUSE_LASTPRIVATE),\
1789 #define OMP_CLAUSE_LASTPRIVATE_GIMPLE_SEQ(NODE) \
1790 (OMP_CLAUSE_CHECK (NODE))->omp_clause.gimple_reduction_init
1792 #define OMP_CLAUSE_IF_EXPR(NODE) \
1793 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_IF), 0)
1794 #define OMP_CLAUSE_NUM_THREADS_EXPR(NODE) \
1795 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_NUM_THREADS),0)
1796 #define OMP_CLAUSE_SCHEDULE_CHUNK_EXPR(NODE) \
1797 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_SCHEDULE), 0)
1799 #define OMP_CLAUSE_COLLAPSE_EXPR(NODE) \
1800 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_COLLAPSE), 0)
1801 #define OMP_CLAUSE_COLLAPSE_ITERVAR(NODE) \
1802 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_COLLAPSE), 1)
1803 #define OMP_CLAUSE_COLLAPSE_COUNT(NODE) \
1804 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_COLLAPSE), 2)
1806 #define OMP_CLAUSE_REDUCTION_CODE(NODE) \
1807 (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_REDUCTION)->omp_clause.subcode.reduction_code)
1808 #define OMP_CLAUSE_REDUCTION_INIT(NODE) \
1809 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_REDUCTION), 1)
1810 #define OMP_CLAUSE_REDUCTION_MERGE(NODE) \
1811 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_REDUCTION), 2)
1812 #define OMP_CLAUSE_REDUCTION_GIMPLE_INIT(NODE) \
1813 (OMP_CLAUSE_CHECK (NODE))->omp_clause.gimple_reduction_init
1814 #define OMP_CLAUSE_REDUCTION_GIMPLE_MERGE(NODE) \
1815 (OMP_CLAUSE_CHECK (NODE))->omp_clause.gimple_reduction_merge
1816 #define OMP_CLAUSE_REDUCTION_PLACEHOLDER(NODE) \
1817 OMP_CLAUSE_OPERAND (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_REDUCTION), 3)
1819 enum omp_clause_schedule_kind
1821 OMP_CLAUSE_SCHEDULE_STATIC,
1822 OMP_CLAUSE_SCHEDULE_DYNAMIC,
1823 OMP_CLAUSE_SCHEDULE_GUIDED,
1824 OMP_CLAUSE_SCHEDULE_AUTO,
1825 OMP_CLAUSE_SCHEDULE_RUNTIME
1828 #define OMP_CLAUSE_SCHEDULE_KIND(NODE) \
1829 (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_SCHEDULE)->omp_clause.subcode.schedule_kind)
1831 enum omp_clause_default_kind
1833 OMP_CLAUSE_DEFAULT_UNSPECIFIED,
1834 OMP_CLAUSE_DEFAULT_SHARED,
1835 OMP_CLAUSE_DEFAULT_NONE,
1836 OMP_CLAUSE_DEFAULT_PRIVATE,
1837 OMP_CLAUSE_DEFAULT_FIRSTPRIVATE
1840 #define OMP_CLAUSE_DEFAULT_KIND(NODE) \
1841 (OMP_CLAUSE_SUBCODE_CHECK (NODE, OMP_CLAUSE_DEFAULT)->omp_clause.subcode.default_kind)
1843 struct GTY(()) tree_exp {
1844 struct tree_common common;
1847 tree GTY ((special ("tree_exp"),
1848 desc ("TREE_CODE ((tree) &%0)")))
1852 /* SSA_NAME accessors. */
1854 /* Returns the variable being referenced. Once released, this is the
1855 only field that can be relied upon. */
1856 #define SSA_NAME_VAR(NODE) SSA_NAME_CHECK (NODE)->ssa_name.var
1858 /* Returns the statement which defines this SSA name. */
1859 #define SSA_NAME_DEF_STMT(NODE) SSA_NAME_CHECK (NODE)->ssa_name.def_stmt
1861 /* Returns the SSA version number of this SSA name. Note that in
1862 tree SSA, version numbers are not per variable and may be recycled. */
1863 #define SSA_NAME_VERSION(NODE) SSA_NAME_CHECK (NODE)->ssa_name.version
1865 /* Nonzero if this SSA name occurs in an abnormal PHI. SSA_NAMES are
1866 never output, so we can safely use the ASM_WRITTEN_FLAG for this
1868 #define SSA_NAME_OCCURS_IN_ABNORMAL_PHI(NODE) \
1869 SSA_NAME_CHECK (NODE)->base.asm_written_flag
1871 /* Nonzero if this SSA_NAME expression is currently on the free list of
1872 SSA_NAMES. Using NOTHROW_FLAG seems reasonably safe since throwing
1873 has no meaning for an SSA_NAME. */
1874 #define SSA_NAME_IN_FREE_LIST(NODE) \
1875 SSA_NAME_CHECK (NODE)->base.nothrow_flag
1877 /* Nonzero if this SSA_NAME is the default definition for the
1878 underlying symbol. A default SSA name is created for symbol S if
1879 the very first reference to S in the function is a read operation.
1880 Default definitions are always created by an empty statement and
1881 belong to no basic block. */
1882 #define SSA_NAME_IS_DEFAULT_DEF(NODE) \
1883 SSA_NAME_CHECK (NODE)->base.default_def_flag
1885 /* Attributes for SSA_NAMEs for pointer-type variables. */
1886 #define SSA_NAME_PTR_INFO(N) \
1887 SSA_NAME_CHECK (N)->ssa_name.ptr_info
1889 #ifndef _TREE_FLOW_H
1890 struct ptr_info_def;
1895 /* Immediate use linking structure. This structure is used for maintaining
1896 a doubly linked list of uses of an SSA_NAME. */
1897 typedef struct GTY(()) ssa_use_operand_d {
1898 struct ssa_use_operand_d* GTY((skip(""))) prev;
1899 struct ssa_use_operand_d* GTY((skip(""))) next;
1900 /* Immediate uses for a given SSA name are maintained as a cyclic
1901 list. To recognize the root of this list, the location field
1902 needs to point to the original SSA name. Since statements and
1903 SSA names are of different data types, we need this union. See
1904 the explanation in struct immediate_use_iterator_d. */
1905 union { gimple stmt; tree ssa_name; } GTY((skip(""))) loc;
1906 tree *GTY((skip(""))) use;
1907 } ssa_use_operand_t;
1909 /* Return the immediate_use information for an SSA_NAME. */
1910 #define SSA_NAME_IMM_USE_NODE(NODE) SSA_NAME_CHECK (NODE)->ssa_name.imm_uses
1912 struct GTY(()) tree_ssa_name {
1913 struct tree_common common;
1915 /* _DECL wrapped by this SSA name. */
1918 /* Statement that defines this SSA name. */
1921 /* SSA version number. */
1922 unsigned int version;
1924 /* Pointer attributes used for alias analysis. */
1925 struct ptr_info_def *ptr_info;
1927 /* Immediate uses list for this SSA_NAME. */
1928 struct ssa_use_operand_d imm_uses;
1931 struct GTY(()) phi_arg_d {
1932 /* imm_use MUST be the first element in struct because we do some
1933 pointer arithmetic with it. See phi_arg_index_from_use. */
1934 struct ssa_use_operand_d imm_use;
1940 #define OMP_CLAUSE_CODE(NODE) \
1941 (OMP_CLAUSE_CHECK (NODE))->omp_clause.code
1943 #define OMP_CLAUSE_SET_CODE(NODE, CODE) \
1944 ((OMP_CLAUSE_CHECK (NODE))->omp_clause.code = (CODE))
1946 #define OMP_CLAUSE_CODE(NODE) \
1947 (OMP_CLAUSE_CHECK (NODE))->omp_clause.code
1949 #define OMP_CLAUSE_OPERAND(NODE, I) \
1950 OMP_CLAUSE_ELT_CHECK (NODE, I)
1952 struct GTY(()) tree_omp_clause {
1953 struct tree_common common;
1955 enum omp_clause_code code;
1956 union omp_clause_subcode {
1957 enum omp_clause_default_kind default_kind;
1958 enum omp_clause_schedule_kind schedule_kind;
1959 enum tree_code reduction_code;
1960 } GTY ((skip)) subcode;
1962 /* The gimplification of OMP_CLAUSE_REDUCTION_{INIT,MERGE} for omp-low's
1964 gimple_seq gimple_reduction_init;
1965 gimple_seq gimple_reduction_merge;
1967 tree GTY ((length ("omp_clause_num_ops[OMP_CLAUSE_CODE ((tree)&%h)]"))) ops[1];
1971 /* In a BLOCK node. */
1972 #define BLOCK_VARS(NODE) (BLOCK_CHECK (NODE)->block.vars)
1973 #define BLOCK_NONLOCALIZED_VARS(NODE) \
1974 (BLOCK_CHECK (NODE)->block.nonlocalized_vars)
1975 #define BLOCK_NUM_NONLOCALIZED_VARS(NODE) \
1976 VEC_length (tree, BLOCK_NONLOCALIZED_VARS (NODE))
1977 #define BLOCK_NONLOCALIZED_VAR(NODE,N) \
1978 VEC_index (tree, BLOCK_NONLOCALIZED_VARS (NODE), N)
1979 #define BLOCK_SUBBLOCKS(NODE) (BLOCK_CHECK (NODE)->block.subblocks)
1980 #define BLOCK_SUPERCONTEXT(NODE) (BLOCK_CHECK (NODE)->block.supercontext)
1981 /* Note: when changing this, make sure to find the places
1982 that use chainon or nreverse. */
1983 #define BLOCK_CHAIN(NODE) TREE_CHAIN (BLOCK_CHECK (NODE))
1984 #define BLOCK_ABSTRACT_ORIGIN(NODE) (BLOCK_CHECK (NODE)->block.abstract_origin)
1985 #define BLOCK_ABSTRACT(NODE) (BLOCK_CHECK (NODE)->block.abstract_flag)
1987 /* An index number for this block. These values are not guaranteed to
1988 be unique across functions -- whether or not they are depends on
1989 the debugging output format in use. */
1990 #define BLOCK_NUMBER(NODE) (BLOCK_CHECK (NODE)->block.block_num)
1992 /* If block reordering splits a lexical block into discontiguous
1993 address ranges, we'll make a copy of the original block.
1995 Note that this is logically distinct from BLOCK_ABSTRACT_ORIGIN.
1996 In that case, we have one source block that has been replicated
1997 (through inlining or unrolling) into many logical blocks, and that
1998 these logical blocks have different physical variables in them.
2000 In this case, we have one logical block split into several
2001 non-contiguous address ranges. Most debug formats can't actually
2002 represent this idea directly, so we fake it by creating multiple
2003 logical blocks with the same variables in them. However, for those
2004 that do support non-contiguous regions, these allow the original
2005 logical block to be reconstructed, along with the set of address
2008 One of the logical block fragments is arbitrarily chosen to be
2009 the ORIGIN. The other fragments will point to the origin via
2010 BLOCK_FRAGMENT_ORIGIN; the origin itself will have this pointer
2011 be null. The list of fragments will be chained through
2012 BLOCK_FRAGMENT_CHAIN from the origin. */
2014 #define BLOCK_FRAGMENT_ORIGIN(NODE) (BLOCK_CHECK (NODE)->block.fragment_origin)
2015 #define BLOCK_FRAGMENT_CHAIN(NODE) (BLOCK_CHECK (NODE)->block.fragment_chain)
2017 /* For an inlined function, this gives the location where it was called
2018 from. This is only set in the top level block, which corresponds to the
2019 inlined function scope. This is used in the debug output routines. */
2021 #define BLOCK_SOURCE_LOCATION(NODE) (BLOCK_CHECK (NODE)->block.locus)
2023 struct GTY(()) tree_block {
2024 struct tree_common common;
2026 unsigned abstract_flag : 1;
2027 unsigned block_num : 31;
2032 VEC(tree,gc) *nonlocalized_vars;
2036 tree abstract_origin;
2037 tree fragment_origin;
2038 tree fragment_chain;
2041 /* Define fields and accessors for nodes representing data types. */
2043 /* See tree.def for documentation of the use of these fields.
2044 Look at the documentation of the various ..._TYPE tree codes.
2046 Note that the type.values, type.minval, and type.maxval fields are
2047 overloaded and used for different macros in different kinds of types.
2048 Each macro must check to ensure the tree node is of the proper kind of
2049 type. Note also that some of the front-ends also overload these fields,
2050 so they must be checked as well. */
2052 #define TYPE_UID(NODE) (TYPE_CHECK (NODE)->type.uid)
2053 #define TYPE_SIZE(NODE) (TYPE_CHECK (NODE)->type.size)
2054 #define TYPE_SIZE_UNIT(NODE) (TYPE_CHECK (NODE)->type.size_unit)
2055 #define TYPE_VALUES(NODE) (ENUMERAL_TYPE_CHECK (NODE)->type.values)
2056 #define TYPE_DOMAIN(NODE) (ARRAY_TYPE_CHECK (NODE)->type.values)
2057 #define TYPE_FIELDS(NODE) (RECORD_OR_UNION_CHECK (NODE)->type.values)
2058 #define TYPE_CACHED_VALUES(NODE) (TYPE_CHECK(NODE)->type.values)
2059 #define TYPE_ORIG_SIZE_TYPE(NODE) \
2060 (INTEGER_TYPE_CHECK (NODE)->type.values \
2061 ? TREE_TYPE ((NODE)->type.values) : NULL_TREE)
2062 #define TYPE_METHODS(NODE) (RECORD_OR_UNION_CHECK (NODE)->type.maxval)
2063 #define TYPE_VFIELD(NODE) (RECORD_OR_UNION_CHECK (NODE)->type.minval)
2064 #define TYPE_ARG_TYPES(NODE) (FUNC_OR_METHOD_CHECK (NODE)->type.values)
2065 #define TYPE_METHOD_BASETYPE(NODE) (FUNC_OR_METHOD_CHECK (NODE)->type.maxval)
2066 #define TYPE_OFFSET_BASETYPE(NODE) (OFFSET_TYPE_CHECK (NODE)->type.maxval)
2067 #define TYPE_POINTER_TO(NODE) (TYPE_CHECK (NODE)->type.pointer_to)
2068 #define TYPE_REFERENCE_TO(NODE) (TYPE_CHECK (NODE)->type.reference_to)
2069 #define TYPE_NEXT_PTR_TO(NODE) (POINTER_TYPE_CHECK (NODE)->type.minval)
2070 #define TYPE_NEXT_REF_TO(NODE) (REFERENCE_TYPE_CHECK (NODE)->type.minval)
2071 #define TYPE_MIN_VALUE(NODE) (NUMERICAL_TYPE_CHECK (NODE)->type.minval)
2072 #define TYPE_MAX_VALUE(NODE) (NUMERICAL_TYPE_CHECK (NODE)->type.maxval)
2073 #define TYPE_PRECISION(NODE) (TYPE_CHECK (NODE)->type.precision)
2074 #define TYPE_SYMTAB_ADDRESS(NODE) (TYPE_CHECK (NODE)->type.symtab.address)
2075 #define TYPE_SYMTAB_POINTER(NODE) (TYPE_CHECK (NODE)->type.symtab.pointer)
2076 #define TYPE_SYMTAB_DIE(NODE) (TYPE_CHECK (NODE)->type.symtab.die)
2077 #define TYPE_NAME(NODE) (TYPE_CHECK (NODE)->type.name)
2078 #define TYPE_NEXT_VARIANT(NODE) (TYPE_CHECK (NODE)->type.next_variant)
2079 #define TYPE_MAIN_VARIANT(NODE) (TYPE_CHECK (NODE)->type.main_variant)
2080 #define TYPE_CONTEXT(NODE) (TYPE_CHECK (NODE)->type.context)
2081 #define TYPE_MAXVAL(NODE) (TYPE_CHECK (NODE)->type.maxval)
2082 #define TYPE_MINVAL(NODE) (TYPE_CHECK (NODE)->type.minval)
2084 /* Vector types need to check target flags to determine type. */
2085 extern enum machine_mode vector_type_mode (const_tree);
2086 #define TYPE_MODE(NODE) \
2087 (TREE_CODE (TYPE_CHECK (NODE)) == VECTOR_TYPE \
2088 ? vector_type_mode (NODE) : (NODE)->type.mode)
2089 #define SET_TYPE_MODE(NODE, MODE) \
2090 (TYPE_CHECK (NODE)->type.mode = (MODE))
2092 /* The "canonical" type for this type node, which can be used to
2093 compare the type for equality with another type. If two types are
2094 equal (based on the semantics of the language), then they will have
2095 equivalent TYPE_CANONICAL entries.
2097 As a special case, if TYPE_CANONICAL is NULL_TREE, then it cannot
2098 be used for comparison against other types. Instead, the type is
2099 said to require structural equality checks, described in
2100 TYPE_STRUCTURAL_EQUALITY_P. */
2101 #define TYPE_CANONICAL(NODE) (TYPE_CHECK (NODE)->type.canonical)
2102 /* Indicates that the type node requires structural equality
2103 checks. The compiler will need to look at the composition of the
2104 type to determine whether it is equal to another type, rather than
2105 just comparing canonical type pointers. For instance, we would need
2106 to look at the return and parameter types of a FUNCTION_TYPE
2108 #define TYPE_STRUCTURAL_EQUALITY_P(NODE) (TYPE_CANONICAL (NODE) == NULL_TREE)
2109 /* Sets the TYPE_CANONICAL field to NULL_TREE, indicating that the
2110 type node requires structural equality. */
2111 #define SET_TYPE_STRUCTURAL_EQUALITY(NODE) (TYPE_CANONICAL (NODE) = NULL_TREE)
2112 #define TYPE_LANG_SPECIFIC(NODE) (TYPE_CHECK (NODE)->type.lang_specific)
2113 #define TYPE_IBIT(NODE) (GET_MODE_IBIT (TYPE_MODE (NODE)))
2114 #define TYPE_FBIT(NODE) (GET_MODE_FBIT (TYPE_MODE (NODE)))
2116 /* For a VECTOR_TYPE node, this describes a different type which is emitted
2117 in the debugging output. We use this to describe a vector as a
2118 structure containing an array. */
2119 #define TYPE_DEBUG_REPRESENTATION_TYPE(NODE) \
2120 (VECTOR_TYPE_CHECK (NODE)->type.values)
2122 /* For record and union types, information about this type, as a base type
2124 #define TYPE_BINFO(NODE) (RECORD_OR_UNION_CHECK(NODE)->type.binfo)
2126 /* For non record and union types, used in a language-dependent way. */
2127 #define TYPE_LANG_SLOT_1(NODE) (NOT_RECORD_OR_UNION_CHECK(NODE)->type.binfo)
2129 /* The (language-specific) typed-based alias set for this type.
2130 Objects whose TYPE_ALIAS_SETs are different cannot alias each
2131 other. If the TYPE_ALIAS_SET is -1, no alias set has yet been
2132 assigned to this type. If the TYPE_ALIAS_SET is 0, objects of this
2133 type can alias objects of any type. */
2134 #define TYPE_ALIAS_SET(NODE) (TYPE_CHECK (NODE)->type.alias_set)
2136 /* Nonzero iff the typed-based alias set for this type has been
2138 #define TYPE_ALIAS_SET_KNOWN_P(NODE) (TYPE_CHECK (NODE)->type.alias_set != -1)
2140 /* A TREE_LIST of IDENTIFIER nodes of the attributes that apply
2142 #define TYPE_ATTRIBUTES(NODE) (TYPE_CHECK (NODE)->type.attributes)
2144 /* The alignment necessary for objects of this type.
2145 The value is an int, measured in bits. */
2146 #define TYPE_ALIGN(NODE) (TYPE_CHECK (NODE)->type.align)
2148 /* 1 if the alignment for this type was requested by "aligned" attribute,
2149 0 if it is the default for this type. */
2150 #define TYPE_USER_ALIGN(NODE) (TYPE_CHECK (NODE)->common.base.user_align)
2152 /* The alignment for NODE, in bytes. */
2153 #define TYPE_ALIGN_UNIT(NODE) (TYPE_ALIGN (NODE) / BITS_PER_UNIT)
2155 /* If your language allows you to declare types, and you want debug info
2156 for them, then you need to generate corresponding TYPE_DECL nodes.
2157 These "stub" TYPE_DECL nodes have no name, and simply point at the
2158 type node. You then set the TYPE_STUB_DECL field of the type node
2159 to point back at the TYPE_DECL node. This allows the debug routines
2160 to know that the two nodes represent the same type, so that we only
2161 get one debug info record for them. */
2162 #define TYPE_STUB_DECL(NODE) TREE_CHAIN (NODE)
2164 /* In a RECORD_TYPE, UNION_TYPE or QUAL_UNION_TYPE, it means the type
2165 has BLKmode only because it lacks the alignment requirement for
2167 #define TYPE_NO_FORCE_BLK(NODE) (TYPE_CHECK (NODE)->type.no_force_blk_flag)
2169 /* In an INTEGER_TYPE, it means the type represents a size. We use
2170 this both for validity checking and to permit optimizations that
2171 are unsafe for other types. Note that the C `size_t' type should
2172 *not* have this flag set. The `size_t' type is simply a typedef
2173 for an ordinary integer type that happens to be the type of an
2174 expression returned by `sizeof'; `size_t' has no special
2175 properties. Expressions whose type have TYPE_IS_SIZETYPE set are
2176 always actual sizes. */
2177 #define TYPE_IS_SIZETYPE(NODE) \
2178 (INTEGER_TYPE_CHECK (NODE)->type.no_force_blk_flag)
2180 /* Nonzero in a type considered volatile as a whole. */
2181 #define TYPE_VOLATILE(NODE) (TYPE_CHECK (NODE)->base.volatile_flag)
2183 /* Means this type is const-qualified. */
2184 #define TYPE_READONLY(NODE) (TYPE_CHECK (NODE)->base.readonly_flag)
2186 /* If nonzero, this type is `restrict'-qualified, in the C sense of
2188 #define TYPE_RESTRICT(NODE) (TYPE_CHECK (NODE)->type.restrict_flag)
2190 /* The address space the type is in. */
2191 #define TYPE_ADDR_SPACE(NODE) (TYPE_CHECK (NODE)->base.address_space)
2193 /* There is a TYPE_QUAL value for each type qualifier. They can be
2194 combined by bitwise-or to form the complete set of qualifiers for a
2197 #define TYPE_UNQUALIFIED 0x0
2198 #define TYPE_QUAL_CONST 0x1
2199 #define TYPE_QUAL_VOLATILE 0x2
2200 #define TYPE_QUAL_RESTRICT 0x4
2202 /* Encode/decode the named memory support as part of the qualifier. If more
2203 than 8 qualifiers are added, these macros need to be adjusted. */
2204 #define ENCODE_QUAL_ADDR_SPACE(NUM) ((NUM & 0xFF) << 8)
2205 #define DECODE_QUAL_ADDR_SPACE(X) (((X) >> 8) & 0xFF)
2207 /* Return all qualifiers except for the address space qualifiers. */
2208 #define CLEAR_QUAL_ADDR_SPACE(X) ((X) & ~0xFF00)
2210 /* Only keep the address space out of the qualifiers and discard the other
2212 #define KEEP_QUAL_ADDR_SPACE(X) ((X) & 0xFF00)
2214 /* The set of type qualifiers for this type. */
2215 #define TYPE_QUALS(NODE) \
2216 ((TYPE_READONLY (NODE) * TYPE_QUAL_CONST) \
2217 | (TYPE_VOLATILE (NODE) * TYPE_QUAL_VOLATILE) \
2218 | (TYPE_RESTRICT (NODE) * TYPE_QUAL_RESTRICT) \
2219 | (ENCODE_QUAL_ADDR_SPACE (TYPE_ADDR_SPACE (NODE))))
2221 /* The same as TYPE_QUALS without the address space qualifications. */
2222 #define TYPE_QUALS_NO_ADDR_SPACE(NODE) \
2223 ((TYPE_READONLY (NODE) * TYPE_QUAL_CONST) \
2224 | (TYPE_VOLATILE (NODE) * TYPE_QUAL_VOLATILE) \
2225 | (TYPE_RESTRICT (NODE) * TYPE_QUAL_RESTRICT))
2227 /* These flags are available for each language front end to use internally. */
2228 #define TYPE_LANG_FLAG_0(NODE) (TYPE_CHECK (NODE)->type.lang_flag_0)
2229 #define TYPE_LANG_FLAG_1(NODE) (TYPE_CHECK (NODE)->type.lang_flag_1)
2230 #define TYPE_LANG_FLAG_2(NODE) (TYPE_CHECK (NODE)->type.lang_flag_2)
2231 #define TYPE_LANG_FLAG_3(NODE) (TYPE_CHECK (NODE)->type.lang_flag_3)
2232 #define TYPE_LANG_FLAG_4(NODE) (TYPE_CHECK (NODE)->type.lang_flag_4)
2233 #define TYPE_LANG_FLAG_5(NODE) (TYPE_CHECK (NODE)->type.lang_flag_5)
2234 #define TYPE_LANG_FLAG_6(NODE) (TYPE_CHECK (NODE)->type.lang_flag_6)
2236 /* Used to keep track of visited nodes in tree traversals. This is set to
2237 0 by copy_node and make_node. */
2238 #define TREE_VISITED(NODE) ((NODE)->base.visited)
2240 /* If set in an ARRAY_TYPE, indicates a string type (for languages
2241 that distinguish string from array of char).
2242 If set in a INTEGER_TYPE, indicates a character type. */
2243 #define TYPE_STRING_FLAG(NODE) (TYPE_CHECK (NODE)->type.string_flag)
2245 /* If non-NULL, this is an upper bound of the size (in bytes) of an
2246 object of the given ARRAY_TYPE. This allows temporaries to be
2248 #define TYPE_ARRAY_MAX_SIZE(ARRAY_TYPE) \
2249 (ARRAY_TYPE_CHECK (ARRAY_TYPE)->type.maxval)
2251 /* For a VECTOR_TYPE, this is the number of sub-parts of the vector. */
2252 #define TYPE_VECTOR_SUBPARTS(VECTOR_TYPE) \
2253 (((unsigned HOST_WIDE_INT) 1) \
2254 << VECTOR_TYPE_CHECK (VECTOR_TYPE)->type.precision)
2256 /* Set precision to n when we have 2^n sub-parts of the vector. */
2257 #define SET_TYPE_VECTOR_SUBPARTS(VECTOR_TYPE, X) \
2258 (VECTOR_TYPE_CHECK (VECTOR_TYPE)->type.precision = exact_log2 (X))
2260 /* Nonzero in a VECTOR_TYPE if the frontends should not emit warnings
2261 about missing conversions to other vector types of the same size. */
2262 #define TYPE_VECTOR_OPAQUE(NODE) \
2263 (VECTOR_TYPE_CHECK (NODE)->base.default_def_flag)
2265 /* Indicates that objects of this type must be initialized by calling a
2266 function when they are created. */
2267 #define TYPE_NEEDS_CONSTRUCTING(NODE) \
2268 (TYPE_CHECK (NODE)->type.needs_constructing_flag)
2270 /* Indicates that a UNION_TYPE object should be passed the same way that
2271 the first union alternative would be passed, or that a RECORD_TYPE
2272 object should be passed the same way that the first (and only) member
2274 #define TYPE_TRANSPARENT_AGGR(NODE) \
2275 (RECORD_OR_UNION_CHECK (NODE)->type.transparent_aggr_flag)
2277 /* For an ARRAY_TYPE, indicates that it is not permitted to take the
2278 address of a component of the type. This is the counterpart of
2279 DECL_NONADDRESSABLE_P for arrays, see the definition of this flag. */
2280 #define TYPE_NONALIASED_COMPONENT(NODE) \
2281 (ARRAY_TYPE_CHECK (NODE)->type.transparent_aggr_flag)
2283 /* Indicated that objects of this type should be laid out in as
2284 compact a way as possible. */
2285 #define TYPE_PACKED(NODE) (TYPE_CHECK (NODE)->common.base.packed_flag)
2287 /* Used by type_contains_placeholder_p to avoid recomputation.
2288 Values are: 0 (unknown), 1 (false), 2 (true). Never access
2289 this field directly. */
2290 #define TYPE_CONTAINS_PLACEHOLDER_INTERNAL(NODE) \
2291 (TYPE_CHECK (NODE)->type.contains_placeholder_bits)
2295 struct GTY(()) tree_type {
2296 struct tree_common common;
2303 unsigned int precision : 10;
2304 unsigned no_force_blk_flag : 1;
2305 unsigned needs_constructing_flag : 1;
2306 unsigned transparent_aggr_flag : 1;
2307 unsigned restrict_flag : 1;
2308 unsigned contains_placeholder_bits : 2;
2310 ENUM_BITFIELD(machine_mode) mode : 8;
2312 unsigned string_flag : 1;
2313 unsigned lang_flag_0 : 1;
2314 unsigned lang_flag_1 : 1;
2315 unsigned lang_flag_2 : 1;
2316 unsigned lang_flag_3 : 1;
2317 unsigned lang_flag_4 : 1;
2318 unsigned lang_flag_5 : 1;
2319 unsigned lang_flag_6 : 1;
2322 alias_set_type alias_set;
2325 union tree_type_symtab {
2326 int GTY ((tag ("0"))) address;
2327 const char * GTY ((tag ("1"))) pointer;
2328 struct die_struct * GTY ((tag ("2"))) die;
2329 } GTY ((desc ("debug_hooks == &sdb_debug_hooks ? 1 : debug_hooks == &dwarf2_debug_hooks ? 2 : 0"),
2330 descbits ("2"))) symtab;
2339 /* Points to a structure whose details depend on the language in use. */
2340 struct lang_type *lang_specific;
2343 /* Define accessor macros for information about type inheritance
2346 A "basetype" means a particular usage of a data type for inheritance
2347 in another type. Each such basetype usage has its own "binfo"
2348 object to describe it. The binfo object is a TREE_VEC node.
2350 Inheritance is represented by the binfo nodes allocated for a
2351 given type. For example, given types C and D, such that D is
2352 inherited by C, 3 binfo nodes will be allocated: one for describing
2353 the binfo properties of C, similarly one for D, and one for
2354 describing the binfo properties of D as a base type for C.
2355 Thus, given a pointer to class C, one can get a pointer to the binfo
2356 of D acting as a basetype for C by looking at C's binfo's basetypes. */
2358 /* BINFO specific flags. */
2360 /* Nonzero means that the derivation chain is via a `virtual' declaration. */
2361 #define BINFO_VIRTUAL_P(NODE) (TREE_BINFO_CHECK (NODE)->base.static_flag)
2363 /* Flags for language dependent use. */
2364 #define BINFO_MARKED(NODE) TREE_LANG_FLAG_0(TREE_BINFO_CHECK(NODE))
2365 #define BINFO_FLAG_1(NODE) TREE_LANG_FLAG_1(TREE_BINFO_CHECK(NODE))
2366 #define BINFO_FLAG_2(NODE) TREE_LANG_FLAG_2(TREE_BINFO_CHECK(NODE))
2367 #define BINFO_FLAG_3(NODE) TREE_LANG_FLAG_3(TREE_BINFO_CHECK(NODE))
2368 #define BINFO_FLAG_4(NODE) TREE_LANG_FLAG_4(TREE_BINFO_CHECK(NODE))
2369 #define BINFO_FLAG_5(NODE) TREE_LANG_FLAG_5(TREE_BINFO_CHECK(NODE))
2370 #define BINFO_FLAG_6(NODE) TREE_LANG_FLAG_6(TREE_BINFO_CHECK(NODE))
2372 /* The actual data type node being inherited in this basetype. */
2373 #define BINFO_TYPE(NODE) TREE_TYPE (TREE_BINFO_CHECK(NODE))
2375 /* The offset where this basetype appears in its containing type.
2376 BINFO_OFFSET slot holds the offset (in bytes)
2377 from the base of the complete object to the base of the part of the
2378 object that is allocated on behalf of this `type'.
2379 This is always 0 except when there is multiple inheritance. */
2381 #define BINFO_OFFSET(NODE) (TREE_BINFO_CHECK(NODE)->binfo.offset)
2382 #define BINFO_OFFSET_ZEROP(NODE) (integer_zerop (BINFO_OFFSET (NODE)))
2384 /* The virtual function table belonging to this basetype. Virtual
2385 function tables provide a mechanism for run-time method dispatching.
2386 The entries of a virtual function table are language-dependent. */
2388 #define BINFO_VTABLE(NODE) (TREE_BINFO_CHECK(NODE)->binfo.vtable)
2390 /* The virtual functions in the virtual function table. This is
2391 a TREE_LIST that is used as an initial approximation for building
2392 a virtual function table for this basetype. */
2393 #define BINFO_VIRTUALS(NODE) (TREE_BINFO_CHECK(NODE)->binfo.virtuals)
2395 /* A vector of binfos for the direct basetypes inherited by this
2398 If this basetype describes type D as inherited in C, and if the
2399 basetypes of D are E and F, then this vector contains binfos for
2400 inheritance of E and F by C. */
2401 #define BINFO_BASE_BINFOS(NODE) (&TREE_BINFO_CHECK(NODE)->binfo.base_binfos)
2403 /* The number of basetypes for NODE. */
2404 #define BINFO_N_BASE_BINFOS(NODE) (VEC_length (tree, BINFO_BASE_BINFOS (NODE)))
2406 /* Accessor macro to get to the Nth base binfo of this binfo. */
2407 #define BINFO_BASE_BINFO(NODE,N) \
2408 (VEC_index (tree, BINFO_BASE_BINFOS (NODE), (N)))
2409 #define BINFO_BASE_ITERATE(NODE,N,B) \
2410 (VEC_iterate (tree, BINFO_BASE_BINFOS (NODE), (N), (B)))
2411 #define BINFO_BASE_APPEND(NODE,T) \
2412 (VEC_quick_push (tree, BINFO_BASE_BINFOS (NODE), (T)))
2414 /* For a BINFO record describing a virtual base class, i.e., one where
2415 TREE_VIA_VIRTUAL is set, this field assists in locating the virtual
2416 base. The actual contents are language-dependent. In the C++
2417 front-end this field is an INTEGER_CST giving an offset into the
2418 vtable where the offset to the virtual base can be found. */
2419 #define BINFO_VPTR_FIELD(NODE) (TREE_BINFO_CHECK(NODE)->binfo.vptr_field)
2421 /* Indicates the accesses this binfo has to its bases. The values are
2422 access_public_node, access_protected_node or access_private_node.
2423 If this array is not present, public access is implied. */
2424 #define BINFO_BASE_ACCESSES(NODE) (TREE_BINFO_CHECK(NODE)->binfo.base_accesses)
2426 #define BINFO_BASE_ACCESS(NODE,N) \
2427 VEC_index (tree, BINFO_BASE_ACCESSES (NODE), (N))
2428 #define BINFO_BASE_ACCESS_APPEND(NODE,T) \
2429 VEC_quick_push (tree, BINFO_BASE_ACCESSES (NODE), (T))
2431 /* The index in the VTT where this subobject's sub-VTT can be found.
2432 NULL_TREE if there is no sub-VTT. */
2433 #define BINFO_SUBVTT_INDEX(NODE) (TREE_BINFO_CHECK(NODE)->binfo.vtt_subvtt)
2435 /* The index in the VTT where the vptr for this subobject can be
2436 found. NULL_TREE if there is no secondary vptr in the VTT. */
2437 #define BINFO_VPTR_INDEX(NODE) (TREE_BINFO_CHECK(NODE)->binfo.vtt_vptr)
2439 /* The BINFO_INHERITANCE_CHAIN points at the binfo for the base
2440 inheriting this base for non-virtual bases. For virtual bases it
2441 points either to the binfo for which this is a primary binfo, or to
2442 the binfo of the most derived type. */
2443 #define BINFO_INHERITANCE_CHAIN(NODE) \
2444 (TREE_BINFO_CHECK(NODE)->binfo.inheritance)
2446 struct GTY (()) tree_binfo {
2447 struct tree_common common;
2453 VEC(tree,gc) *base_accesses;
2459 VEC(tree,none) base_binfos;
2463 /* Define fields and accessors for nodes representing declared names. */
2465 /* Nonzero if DECL represents a variable for the SSA passes. */
2466 #define SSA_VAR_P(DECL) \
2467 (TREE_CODE (DECL) == VAR_DECL \
2468 || TREE_CODE (DECL) == PARM_DECL \
2469 || TREE_CODE (DECL) == RESULT_DECL \
2470 || (TREE_CODE (DECL) == SSA_NAME \
2471 && (TREE_CODE (SSA_NAME_VAR (DECL)) == VAR_DECL \
2472 || TREE_CODE (SSA_NAME_VAR (DECL)) == PARM_DECL \
2473 || TREE_CODE (SSA_NAME_VAR (DECL)) == RESULT_DECL)))
2478 /* Enumerate visibility settings. */
2479 #ifndef SYMBOL_VISIBILITY_DEFINED
2480 #define SYMBOL_VISIBILITY_DEFINED
2481 enum symbol_visibility
2484 VISIBILITY_PROTECTED,
2493 /* This is the name of the object as written by the user.
2494 It is an IDENTIFIER_NODE. */
2495 #define DECL_NAME(NODE) (DECL_MINIMAL_CHECK (NODE)->decl_minimal.name)
2497 /* Every ..._DECL node gets a unique number. */
2498 #define DECL_UID(NODE) (DECL_MINIMAL_CHECK (NODE)->decl_minimal.uid)
2500 /* DEBUG_EXPR_DECLs get negative UID numbers, to catch erroneous
2502 #define DEBUG_TEMP_UID(NODE) (-DECL_UID (TREE_CHECK ((NODE), DEBUG_EXPR_DECL)))
2504 /* Every ..._DECL node gets a unique number that stays the same even
2505 when the decl is copied by the inliner once it is set. */
2506 #define DECL_PT_UID(NODE) \
2507 (DECL_COMMON_CHECK (NODE)->decl_common.pt_uid == -1u \
2508 ? (NODE)->decl_minimal.uid : (NODE)->decl_common.pt_uid)
2509 /* Initialize the ..._DECL node pt-uid to the decls uid. */
2510 #define SET_DECL_PT_UID(NODE, UID) \
2511 (DECL_COMMON_CHECK (NODE)->decl_common.pt_uid = (UID))
2512 /* Whether the ..._DECL node pt-uid has been initialized and thus needs to
2513 be preserved when copyin the decl. */
2514 #define DECL_PT_UID_SET_P(NODE) \
2515 (DECL_COMMON_CHECK (NODE)->decl_common.pt_uid != -1u)
2517 /* These two fields describe where in the source code the declaration
2518 was. If the declaration appears in several places (as for a C
2519 function that is declared first and then defined later), this
2520 information should refer to the definition. */
2521 #define DECL_SOURCE_LOCATION(NODE) \
2522 (DECL_MINIMAL_CHECK (NODE)->decl_minimal.locus)
2523 #define DECL_SOURCE_FILE(NODE) LOCATION_FILE (DECL_SOURCE_LOCATION (NODE))
2524 #define DECL_SOURCE_LINE(NODE) LOCATION_LINE (DECL_SOURCE_LOCATION (NODE))
2525 #define DECL_IS_BUILTIN(DECL) \
2526 (DECL_SOURCE_LOCATION (DECL) <= BUILTINS_LOCATION)
2528 /* For FIELD_DECLs, this is the RECORD_TYPE, UNION_TYPE, or
2529 QUAL_UNION_TYPE node that the field is a member of. For VAR_DECL,
2530 PARM_DECL, FUNCTION_DECL, LABEL_DECL, RESULT_DECL, and CONST_DECL
2531 nodes, this points to either the FUNCTION_DECL for the containing
2532 function, the RECORD_TYPE or UNION_TYPE for the containing type, or
2533 NULL_TREE or a TRANSLATION_UNIT_DECL if the given decl has "file
2535 #define DECL_CONTEXT(NODE) (DECL_MINIMAL_CHECK (NODE)->decl_minimal.context)
2536 #define DECL_FIELD_CONTEXT(NODE) \
2537 (FIELD_DECL_CHECK (NODE)->decl_minimal.context)
2538 struct GTY(()) tree_decl_minimal {
2539 struct tree_common common;
2547 /* For any sort of a ..._DECL node, this points to the original (abstract)
2548 decl node which this decl is an inlined/cloned instance of, or else it
2549 is NULL indicating that this decl is not an instance of some other decl.
2551 The C front-end also uses this in a nested declaration of an inline
2552 function, to point back to the definition. */
2553 #define DECL_ABSTRACT_ORIGIN(NODE) \
2554 (DECL_COMMON_CHECK (NODE)->decl_common.abstract_origin)
2556 /* Like DECL_ABSTRACT_ORIGIN, but returns NODE if there's no abstract
2557 origin. This is useful when setting the DECL_ABSTRACT_ORIGIN. */
2558 #define DECL_ORIGIN(NODE) \
2559 (DECL_ABSTRACT_ORIGIN (NODE) ? DECL_ABSTRACT_ORIGIN (NODE) : (NODE))
2561 /* Nonzero for any sort of ..._DECL node means this decl node represents an
2562 inline instance of some original (abstract) decl from an inline function;
2563 suppress any warnings about shadowing some other variable. FUNCTION_DECL
2564 nodes can also have their abstract origin set to themselves. */
2565 #define DECL_FROM_INLINE(NODE) \
2566 (DECL_ABSTRACT_ORIGIN (NODE) != NULL_TREE \
2567 && DECL_ABSTRACT_ORIGIN (NODE) != (NODE))
2569 /* In a DECL this is the field where attributes are stored. */
2570 #define DECL_ATTRIBUTES(NODE) \
2571 (DECL_COMMON_CHECK (NODE)->decl_common.attributes)
2573 /* For a FUNCTION_DECL, holds the tree of BINDINGs.
2574 For a TRANSLATION_UNIT_DECL, holds the namespace's BLOCK.
2575 For a VAR_DECL, holds the initial value.
2576 For a PARM_DECL, used for DECL_ARG_TYPE--default
2577 values for parameters are encoded in the type of the function,
2578 not in the PARM_DECL slot.
2579 For a FIELD_DECL, this is used for enumeration values and the C
2580 frontend uses it for temporarily storing bitwidth of bitfields.
2582 ??? Need to figure out some way to check this isn't a PARM_DECL. */
2583 #define DECL_INITIAL(NODE) (DECL_COMMON_CHECK (NODE)->decl_common.initial)
2585 /* Holds the size of the datum, in bits, as a tree expression.
2586 Need not be constant. */
2587 #define DECL_SIZE(NODE) (DECL_COMMON_CHECK (NODE)->decl_common.size)
2588 /* Likewise for the size in bytes. */
2589 #define DECL_SIZE_UNIT(NODE) (DECL_COMMON_CHECK (NODE)->decl_common.size_unit)
2590 /* Holds the alignment required for the datum, in bits. */
2591 #define DECL_ALIGN(NODE) (DECL_COMMON_CHECK (NODE)->decl_common.align)
2592 /* The alignment of NODE, in bytes. */
2593 #define DECL_ALIGN_UNIT(NODE) (DECL_ALIGN (NODE) / BITS_PER_UNIT)
2594 /* Set if the alignment of this DECL has been set by the user, for
2595 example with an 'aligned' attribute. */
2596 #define DECL_USER_ALIGN(NODE) \
2597 (DECL_COMMON_CHECK (NODE)->common.base.user_align)
2598 /* Holds the machine mode corresponding to the declaration of a variable or
2599 field. Always equal to TYPE_MODE (TREE_TYPE (decl)) except for a
2601 #define DECL_MODE(NODE) (DECL_COMMON_CHECK (NODE)->decl_common.mode)
2603 /* For FUNCTION_DECL, if it is built-in, this identifies which built-in
2604 operation it is. Note, however, that this field is overloaded, with
2605 DECL_BUILT_IN_CLASS as the discriminant, so the latter must always be
2606 checked before any access to the former. */
2607 #define DECL_FUNCTION_CODE(NODE) \
2608 (FUNCTION_DECL_CHECK (NODE)->function_decl.function_code)
2609 #define DECL_DEBUG_EXPR_IS_FROM(NODE) \
2610 (DECL_COMMON_CHECK (NODE)->decl_common.debug_expr_is_from)
2612 #define DECL_FUNCTION_PERSONALITY(NODE) \
2613 (FUNCTION_DECL_CHECK (NODE)->function_decl.personality)
2615 /* Nonzero for a given ..._DECL node means that the name of this node should
2616 be ignored for symbolic debug purposes. Moreover, for a FUNCTION_DECL,
2617 the body of the function should also be ignored. */
2618 #define DECL_IGNORED_P(NODE) \
2619 (DECL_COMMON_CHECK (NODE)->decl_common.ignored_flag)
2621 /* Nonzero for a given ..._DECL node means that this node represents an
2622 "abstract instance" of the given declaration (e.g. in the original
2623 declaration of an inline function). When generating symbolic debugging
2624 information, we mustn't try to generate any address information for nodes
2625 marked as "abstract instances" because we don't actually generate
2626 any code or allocate any data space for such instances. */
2627 #define DECL_ABSTRACT(NODE) \
2628 (DECL_COMMON_CHECK (NODE)->decl_common.abstract_flag)
2630 /* Language-specific decl information. */
2631 #define DECL_LANG_SPECIFIC(NODE) \
2632 (DECL_COMMON_CHECK (NODE)->decl_common.lang_specific)
2634 /* In a VAR_DECL or FUNCTION_DECL, nonzero means external reference:
2635 do not allocate storage, and refer to a definition elsewhere. Note that
2636 this does not necessarily imply the entity represented by NODE
2637 has no program source-level definition in this translation unit. For
2638 example, for a FUNCTION_DECL, DECL_SAVED_TREE may be non-NULL and
2639 DECL_EXTERNAL may be true simultaneously; that can be the case for
2640 a C99 "extern inline" function. */
2641 #define DECL_EXTERNAL(NODE) (DECL_COMMON_CHECK (NODE)->decl_common.decl_flag_1)
2643 /* Nonzero in a ..._DECL means this variable is ref'd from a nested function.
2644 For VAR_DECL nodes, PARM_DECL nodes, and FUNCTION_DECL nodes.
2646 For LABEL_DECL nodes, nonzero if nonlocal gotos to the label are permitted.
2648 Also set in some languages for variables, etc., outside the normal
2649 lexical scope, such as class instance variables. */
2650 #define DECL_NONLOCAL(NODE) \
2651 (DECL_COMMON_CHECK (NODE)->decl_common.nonlocal_flag)
2653 /* Used in VAR_DECLs to indicate that the variable is a vtable.
2654 Used in FIELD_DECLs for vtable pointers.
2655 Used in FUNCTION_DECLs to indicate that the function is virtual. */
2656 #define DECL_VIRTUAL_P(NODE) \
2657 (DECL_COMMON_CHECK (NODE)->decl_common.virtual_flag)
2659 /* Used to indicate that this DECL represents a compiler-generated entity. */
2660 #define DECL_ARTIFICIAL(NODE) \
2661 (DECL_COMMON_CHECK (NODE)->decl_common.artificial_flag)
2663 /* Additional flags for language-specific uses. */
2664 #define DECL_LANG_FLAG_0(NODE) \
2665 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_0)
2666 #define DECL_LANG_FLAG_1(NODE) \
2667 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_1)
2668 #define DECL_LANG_FLAG_2(NODE) \
2669 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_2)
2670 #define DECL_LANG_FLAG_3(NODE) \
2671 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_3)
2672 #define DECL_LANG_FLAG_4(NODE) \
2673 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_4)
2674 #define DECL_LANG_FLAG_5(NODE) \
2675 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_5)
2676 #define DECL_LANG_FLAG_6(NODE) \
2677 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_6)
2678 #define DECL_LANG_FLAG_7(NODE) \
2679 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_7)
2680 #define DECL_LANG_FLAG_8(NODE) \
2681 (DECL_COMMON_CHECK (NODE)->decl_common.lang_flag_8)
2683 /* Nonzero for a decl which is at file scope. */
2684 #define DECL_FILE_SCOPE_P(EXP) \
2685 (! DECL_CONTEXT (EXP) \
2686 || TREE_CODE (DECL_CONTEXT (EXP)) == TRANSLATION_UNIT_DECL)
2688 /* Nonzero for a decl that is decorated using attribute used.
2689 This indicates to compiler tools that this decl needs to be preserved. */
2690 #define DECL_PRESERVE_P(DECL) \
2691 DECL_COMMON_CHECK (DECL)->decl_common.preserve_flag
2693 /* For function local variables of COMPLEX and VECTOR types,
2694 indicates that the variable is not aliased, and that all
2695 modifications to the variable have been adjusted so that
2696 they are killing assignments. Thus the variable may now
2697 be treated as a GIMPLE register, and use real instead of
2698 virtual ops in SSA form. */
2699 #define DECL_GIMPLE_REG_P(DECL) \
2700 DECL_COMMON_CHECK (DECL)->decl_common.gimple_reg_flag
2702 struct GTY(()) tree_decl_common {
2703 struct tree_decl_minimal common;
2706 ENUM_BITFIELD(machine_mode) mode : 8;
2708 unsigned nonlocal_flag : 1;
2709 unsigned virtual_flag : 1;
2710 unsigned ignored_flag : 1;
2711 unsigned abstract_flag : 1;
2712 unsigned artificial_flag : 1;
2713 unsigned preserve_flag: 1;
2714 unsigned debug_expr_is_from : 1;
2716 unsigned lang_flag_0 : 1;
2717 unsigned lang_flag_1 : 1;
2718 unsigned lang_flag_2 : 1;
2719 unsigned lang_flag_3 : 1;
2720 unsigned lang_flag_4 : 1;
2721 unsigned lang_flag_5 : 1;
2722 unsigned lang_flag_6 : 1;
2723 unsigned lang_flag_7 : 1;
2724 unsigned lang_flag_8 : 1;
2726 /* In LABEL_DECL, this is DECL_ERROR_ISSUED.
2727 In VAR_DECL and PARM_DECL, this is DECL_REGISTER. */
2728 unsigned decl_flag_0 : 1;
2729 /* In FIELD_DECL, this is DECL_BIT_FIELD
2730 In VAR_DECL and FUNCTION_DECL, this is DECL_EXTERNAL.
2731 In TYPE_DECL, this is TYPE_DECL_SUPPRESS_DEBUG. */
2732 unsigned decl_flag_1 : 1;
2733 /* In FIELD_DECL, this is DECL_NONADDRESSABLE_P
2734 In VAR_DECL and PARM_DECL, this is DECL_HAS_VALUE_EXPR_P. */
2735 unsigned decl_flag_2 : 1;
2736 /* Logically, these two would go in a theoretical base shared by var and
2738 unsigned gimple_reg_flag : 1;
2739 /* In VAR_DECL, PARM_DECL and RESULT_DECL, this is DECL_BY_REFERENCE. */
2740 unsigned decl_by_reference_flag : 1;
2741 /* In VAR_DECL, PARM_DECL and RESULT_DECL, this is DECL_RESTRICTED_P. */
2742 unsigned decl_restricted_flag : 1;
2744 /* In VAR_DECL and PARM_DECL set when the decl has been used except for
2746 unsigned decl_read_flag : 1;
2748 /* Padding so that 'off_align' can be on a 32-bit boundary. */
2749 unsigned decl_common_unused : 1;
2751 /* DECL_OFFSET_ALIGN, used only for FIELD_DECLs. */
2752 unsigned int off_align : 8;
2754 /* 24-bits unused. */
2756 /* DECL_ALIGN. It should have the same size as TYPE_ALIGN. */
2759 /* UID for points-to sets, stable over copying from inlining. */
2760 unsigned int pt_uid;
2765 tree abstract_origin;
2767 /* Points to a structure whose details depend on the language in use. */
2768 struct lang_decl *lang_specific;
2771 extern tree decl_value_expr_lookup (tree);
2772 extern void decl_value_expr_insert (tree, tree);
2774 /* In a VAR_DECL or PARM_DECL, the location at which the value may be found,
2775 if transformations have made this more complicated than evaluating the
2776 decl itself. This should only be used for debugging; once this field has
2777 been set, the decl itself may not legitimately appear in the function. */
2778 #define DECL_HAS_VALUE_EXPR_P(NODE) \
2779 (TREE_CHECK2 (NODE, VAR_DECL, PARM_DECL)->decl_common.decl_flag_2)
2780 #define DECL_VALUE_EXPR(NODE) \
2781 (decl_value_expr_lookup (DECL_WRTL_CHECK (NODE)))
2782 #define SET_DECL_VALUE_EXPR(NODE, VAL) \
2783 (decl_value_expr_insert (DECL_WRTL_CHECK (NODE), VAL))
2785 /* Holds the RTL expression for the value of a variable or function.
2786 This value can be evaluated lazily for functions, variables with
2787 static storage duration, and labels. */
2788 #define DECL_RTL(NODE) \
2789 (DECL_WRTL_CHECK (NODE)->decl_with_rtl.rtl \
2790 ? (NODE)->decl_with_rtl.rtl \
2791 : (make_decl_rtl (NODE), (NODE)->decl_with_rtl.rtl))
2793 /* Set the DECL_RTL for NODE to RTL. */
2794 #define SET_DECL_RTL(NODE, RTL) set_decl_rtl (NODE, RTL)
2796 /* Returns nonzero if NODE is a tree node that can contain RTL. */
2797 #define HAS_RTL_P(NODE) (CODE_CONTAINS_STRUCT (TREE_CODE (NODE), TS_DECL_WRTL))
2799 /* Returns nonzero if the DECL_RTL for NODE has already been set. */
2800 #define DECL_RTL_SET_P(NODE) \
2801 (HAS_RTL_P (NODE) && DECL_WRTL_CHECK (NODE)->decl_with_rtl.rtl != NULL)
2803 /* Copy the RTL from NODE1 to NODE2. If the RTL was not set for
2804 NODE1, it will not be set for NODE2; this is a lazy copy. */
2805 #define COPY_DECL_RTL(NODE1, NODE2) \
2806 (DECL_WRTL_CHECK (NODE2)->decl_with_rtl.rtl \
2807 = DECL_WRTL_CHECK (NODE1)->decl_with_rtl.rtl)
2809 /* The DECL_RTL for NODE, if it is set, or NULL, if it is not set. */
2810 #define DECL_RTL_IF_SET(NODE) (DECL_RTL_SET_P (NODE) ? DECL_RTL (NODE) : NULL)
2812 /* In VAR_DECL and PARM_DECL nodes, nonzero means declared `register'. */
2813 #define DECL_REGISTER(NODE) (DECL_WRTL_CHECK (NODE)->decl_common.decl_flag_0)
2815 struct GTY(()) tree_decl_with_rtl {
2816 struct tree_decl_common common;
2820 /* In a FIELD_DECL, this is the field position, counting in bytes, of the
2821 DECL_OFFSET_ALIGN-bit-sized word containing the bit closest to the beginning
2822 of the structure. */
2823 #define DECL_FIELD_OFFSET(NODE) (FIELD_DECL_CHECK (NODE)->field_decl.offset)
2825 /* In a FIELD_DECL, this is the offset, in bits, of the first bit of the
2826 field from DECL_FIELD_OFFSET. This field may be nonzero even for fields
2827 that are not bit fields (since DECL_OFFSET_ALIGN may be larger than the
2828 natural alignment of the field's type). */
2829 #define DECL_FIELD_BIT_OFFSET(NODE) \
2830 (FIELD_DECL_CHECK (NODE)->field_decl.bit_offset)
2832 /* In a FIELD_DECL, this indicates whether the field was a bit-field and
2833 if so, the type that was originally specified for it.
2834 TREE_TYPE may have been modified (in finish_struct). */
2835 #define DECL_BIT_FIELD_TYPE(NODE) \
2836 (FIELD_DECL_CHECK (NODE)->field_decl.bit_field_type)
2838 /* For a FIELD_DECL in a QUAL_UNION_TYPE, records the expression, which
2839 if nonzero, indicates that the field occupies the type. */
2840 #define DECL_QUALIFIER(NODE) (FIELD_DECL_CHECK (NODE)->field_decl.qualifier)
2842 /* For FIELD_DECLs, off_align holds the number of low-order bits of
2843 DECL_FIELD_OFFSET which are known to be always zero.
2844 DECL_OFFSET_ALIGN thus returns the alignment that DECL_FIELD_OFFSET
2846 #define DECL_OFFSET_ALIGN(NODE) \
2847 (((unsigned HOST_WIDE_INT)1) << FIELD_DECL_CHECK (NODE)->decl_common.off_align)
2849 /* Specify that DECL_ALIGN(NODE) is a multiple of X. */
2850 #define SET_DECL_OFFSET_ALIGN(NODE, X) \
2851 (FIELD_DECL_CHECK (NODE)->decl_common.off_align = exact_log2 ((X) & -(X)))
2852 /* 1 if the alignment for this type was requested by "aligned" attribute,
2853 0 if it is the default for this type. */
2855 /* For FIELD_DECLS, DECL_FCONTEXT is the *first* baseclass in
2856 which this FIELD_DECL is defined. This information is needed when
2857 writing debugging information about vfield and vbase decls for C++. */
2858 #define DECL_FCONTEXT(NODE) (FIELD_DECL_CHECK (NODE)->field_decl.fcontext)
2860 /* In a FIELD_DECL, indicates this field should be bit-packed. */
2861 #define DECL_PACKED(NODE) (FIELD_DECL_CHECK (NODE)->common.base.packed_flag)
2863 /* Nonzero in a FIELD_DECL means it is a bit field, and must be accessed
2865 #define DECL_BIT_FIELD(NODE) (FIELD_DECL_CHECK (NODE)->decl_common.decl_flag_1)
2867 /* Used in a FIELD_DECL to indicate that we cannot form the address of
2868 this component. This makes it possible for Type-Based Alias Analysis
2869 to disambiguate accesses to this field with indirect accesses using
2872 struct S { int i; } s;
2875 If the flag is set on 'i', TBAA computes that s.i and *p never conflict.
2877 From the implementation's viewpoint, the alias set of the type of the
2878 field 'i' (int) will not be recorded as a subset of that of the type of
2879 's' (struct S) in record_component_aliases. The counterpart is that
2880 accesses to s.i must not be given the alias set of the type of 'i'
2881 (int) but instead directly that of the type of 's' (struct S). */
2882 #define DECL_NONADDRESSABLE_P(NODE) \
2883 (FIELD_DECL_CHECK (NODE)->decl_common.decl_flag_2)
2885 struct GTY(()) tree_field_decl {
2886 struct tree_decl_common common;
2889 tree bit_field_type;
2895 /* A numeric unique identifier for a LABEL_DECL. The UID allocation is
2896 dense, unique within any one function, and may be used to index arrays.
2897 If the value is -1, then no UID has been assigned. */
2898 #define LABEL_DECL_UID(NODE) \
2899 (LABEL_DECL_CHECK (NODE)->label_decl.label_decl_uid)
2901 /* In a LABEL_DECL, the EH region number for which the label is the
2902 post_landing_pad. */
2903 #define EH_LANDING_PAD_NR(NODE) \
2904 (LABEL_DECL_CHECK (NODE)->label_decl.eh_landing_pad_nr)
2906 /* In LABEL_DECL nodes, nonzero means that an error message about
2907 jumping into such a binding contour has been printed for this label. */
2908 #define DECL_ERROR_ISSUED(NODE) \
2909 (LABEL_DECL_CHECK (NODE)->decl_common.decl_flag_0)
2911 struct GTY(()) tree_label_decl {
2912 struct tree_decl_with_rtl common;
2914 int eh_landing_pad_nr;
2918 struct GTY(()) tree_result_decl {
2919 struct tree_decl_with_rtl common;
2920 struct var_ann_d *ann;
2923 struct GTY(()) tree_const_decl {
2924 struct tree_decl_with_rtl common;
2927 /* For a PARM_DECL, records the data type used to pass the argument,
2928 which may be different from the type seen in the program. */
2929 #define DECL_ARG_TYPE(NODE) (PARM_DECL_CHECK (NODE)->decl_common.initial)
2931 /* For PARM_DECL, holds an RTL for the stack slot or register
2932 where the data was actually passed. */
2933 #define DECL_INCOMING_RTL(NODE) \
2934 (PARM_DECL_CHECK (NODE)->parm_decl.incoming_rtl)
2936 struct GTY(()) tree_parm_decl {
2937 struct tree_decl_with_rtl common;
2939 struct var_ann_d *ann;
2943 /* Nonzero for a given ..._DECL node means that no warnings should be
2944 generated just because this node is unused. */
2945 #define DECL_IN_SYSTEM_HEADER(NODE) \
2946 (in_system_header_at (DECL_SOURCE_LOCATION (NODE)))
2948 /* Used to indicate that the linkage status of this DECL is not yet known,
2949 so it should not be output now. */
2950 #define DECL_DEFER_OUTPUT(NODE) \
2951 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.defer_output)
2953 /* In a VAR_DECL that's static,
2954 nonzero if the space is in the text section. */
2955 #define DECL_IN_TEXT_SECTION(NODE) \
2956 (VAR_DECL_CHECK (NODE)->decl_with_vis.in_text_section)
2958 /* In a VAR_DECL that's static,
2959 nonzero if it belongs to the global constant pool. */
2960 #define DECL_IN_CONSTANT_POOL(NODE) \
2961 (VAR_DECL_CHECK (NODE)->decl_with_vis.in_constant_pool)
2963 /* Nonzero for a given ..._DECL node means that this node should be
2964 put in .common, if possible. If a DECL_INITIAL is given, and it
2965 is not error_mark_node, then the decl cannot be put in .common. */
2966 #define DECL_COMMON(NODE) \
2967 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.common_flag)
2969 /* In a VAR_DECL, nonzero if the decl is a register variable with
2970 an explicit asm specification. */
2971 #define DECL_HARD_REGISTER(NODE) \
2972 (VAR_DECL_CHECK (NODE)->decl_with_vis.hard_register)
2974 /* Used to indicate that this DECL has weak linkage. */
2975 #define DECL_WEAK(NODE) (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.weak_flag)
2977 /* Used to indicate that the DECL is a dllimport. */
2978 #define DECL_DLLIMPORT_P(NODE) \
2979 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.dllimport_flag)
2981 /* Used in a DECL to indicate that, even if it TREE_PUBLIC, it need
2982 not be put out unless it is needed in this translation unit.
2983 Entities like this are shared across translation units (like weak
2984 entities), but are guaranteed to be generated by any translation
2985 unit that needs them, and therefore need not be put out anywhere
2986 where they are not needed. DECL_COMDAT is just a hint to the
2987 back-end; it is up to front-ends which set this flag to ensure
2988 that there will never be any harm, other than bloat, in putting out
2989 something which is DECL_COMDAT. */
2990 #define DECL_COMDAT(NODE) \
2991 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.comdat_flag)
2993 #define DECL_COMDAT_GROUP(NODE) \
2994 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.comdat_group)
2996 /* Used in TREE_PUBLIC decls to indicate that copies of this DECL in
2997 multiple translation units should be merged. */
2998 #define DECL_ONE_ONLY(NODE) (DECL_COMDAT_GROUP (NODE) != NULL_TREE)
3000 /* A replaceable function is one which may be replaced at link-time
3001 with an entirely different definition, provided that the
3002 replacement has the same type. For example, functions declared
3003 with __attribute__((weak)) on most systems are replaceable.
3005 COMDAT functions are not replaceable, since all definitions of the
3006 function must be equivalent. It is important that COMDAT functions
3007 not be treated as replaceable so that use of C++ template
3008 instantiations is not penalized.
3010 For example, DECL_REPLACEABLE is used to determine whether or not a
3011 function (including a template instantiation) which is not
3012 explicitly declared "inline" can be inlined. If the function is
3013 DECL_REPLACEABLE then it is not safe to do the inlining, since the
3014 implementation chosen at link-time may be different. However, a
3015 function that is not DECL_REPLACEABLE can be inlined, since all
3016 versions of the function will be functionally identical. */
3017 #define DECL_REPLACEABLE_P(NODE) \
3018 (!DECL_COMDAT (NODE) && !targetm.binds_local_p (NODE))
3020 /* The name of the object as the assembler will see it (but before any
3021 translations made by ASM_OUTPUT_LABELREF). Often this is the same
3022 as DECL_NAME. It is an IDENTIFIER_NODE. */
3023 #define DECL_ASSEMBLER_NAME(NODE) decl_assembler_name (NODE)
3025 /* Return true if NODE is a NODE that can contain a DECL_ASSEMBLER_NAME.
3026 This is true of all DECL nodes except FIELD_DECL. */
3027 #define HAS_DECL_ASSEMBLER_NAME_P(NODE) \
3028 (CODE_CONTAINS_STRUCT (TREE_CODE (NODE), TS_DECL_WITH_VIS))
3030 /* Returns nonzero if the DECL_ASSEMBLER_NAME for NODE has been set. If zero,
3031 the NODE might still have a DECL_ASSEMBLER_NAME -- it just hasn't been set
3033 #define DECL_ASSEMBLER_NAME_SET_P(NODE) \
3034 (HAS_DECL_ASSEMBLER_NAME_P (NODE) \
3035 && DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.assembler_name != NULL_TREE)
3037 /* Set the DECL_ASSEMBLER_NAME for NODE to NAME. */
3038 #define SET_DECL_ASSEMBLER_NAME(NODE, NAME) \
3039 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.assembler_name = (NAME))
3041 /* Copy the DECL_ASSEMBLER_NAME from DECL1 to DECL2. Note that if DECL1's
3042 DECL_ASSEMBLER_NAME has not yet been set, using this macro will not cause
3043 the DECL_ASSEMBLER_NAME of either DECL to be set. In other words, the
3044 semantics of using this macro, are different than saying:
3046 SET_DECL_ASSEMBLER_NAME(DECL2, DECL_ASSEMBLER_NAME (DECL1))
3048 which will try to set the DECL_ASSEMBLER_NAME for DECL1. */
3050 #define COPY_DECL_ASSEMBLER_NAME(DECL1, DECL2) \
3051 (DECL_ASSEMBLER_NAME_SET_P (DECL1) \
3052 ? (void) SET_DECL_ASSEMBLER_NAME (DECL2, \
3053 DECL_ASSEMBLER_NAME (DECL1)) \
3056 /* Records the section name in a section attribute. Used to pass
3057 the name from decl_attributes to make_function_rtl and make_decl_rtl. */
3058 #define DECL_SECTION_NAME(NODE) \
3059 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.section_name)
3061 /* Nonzero in a decl means that the gimplifier has seen (or placed)
3062 this variable in a BIND_EXPR. */
3063 #define DECL_SEEN_IN_BIND_EXPR_P(NODE) \
3064 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.seen_in_bind_expr)
3066 /* Value of the decls's visibility attribute */
3067 #define DECL_VISIBILITY(NODE) \
3068 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.visibility)
3070 /* Nonzero means that the decl had its visibility specified rather than
3072 #define DECL_VISIBILITY_SPECIFIED(NODE) \
3073 (DECL_WITH_VIS_CHECK (NODE)->decl_with_vis.visibility_specified)
3075 /* In a VAR_DECL, the model to use if the data should be allocated from
3076 thread-local storage. */
3077 #define DECL_TLS_MODEL(NODE) (VAR_DECL_CHECK (NODE)->decl_with_vis.tls_model)
3079 /* In a VAR_DECL, nonzero if the data should be allocated from
3080 thread-local storage. */
3081 #define DECL_THREAD_LOCAL_P(NODE) \
3082 (VAR_DECL_CHECK (NODE)->decl_with_vis.tls_model >= TLS_MODEL_REAL)
3084 /* In a non-local VAR_DECL with static storage duration, true if the
3085 variable has an initialization priority. If false, the variable
3086 will be initialized at the DEFAULT_INIT_PRIORITY. */
3087 #define DECL_HAS_INIT_PRIORITY_P(NODE) \
3088 (VAR_DECL_CHECK (NODE)->decl_with_vis.init_priority_p)
3090 struct GTY(()) tree_decl_with_vis {
3091 struct tree_decl_with_rtl common;
3092 tree assembler_name;
3096 /* Belong to VAR_DECL exclusively. */
3097 unsigned defer_output : 1;
3098 unsigned hard_register : 1;
3099 unsigned thread_local : 1;
3100 unsigned common_flag : 1;
3101 unsigned in_text_section : 1;
3102 unsigned in_constant_pool : 1;
3103 unsigned dllimport_flag : 1;
3104 /* Don't belong to VAR_DECL exclusively. */
3105 unsigned weak_flag : 1;
3107 unsigned seen_in_bind_expr : 1;
3108 unsigned comdat_flag : 1;
3109 ENUM_BITFIELD(symbol_visibility) visibility : 2;
3110 unsigned visibility_specified : 1;
3111 /* Belongs to VAR_DECL exclusively. */
3112 ENUM_BITFIELD(tls_model) tls_model : 3;
3114 /* Belong to FUNCTION_DECL exclusively. */
3115 unsigned init_priority_p : 1;
3116 /* Used by C++ only. Might become a generic decl flag. */
3117 unsigned shadowed_for_var_p : 1;
3118 /* 14 unused bits. */
3121 extern tree decl_debug_expr_lookup (tree);
3122 extern void decl_debug_expr_insert (tree, tree);
3123 /* For VAR_DECL, this is set to either an expression that it was split
3124 from (if DECL_DEBUG_EXPR_IS_FROM is true), otherwise a tree_list of
3125 subexpressions that it was split into. */
3126 #define DECL_DEBUG_EXPR(NODE) \
3127 (decl_debug_expr_lookup (VAR_DECL_CHECK (NODE)))
3129 #define SET_DECL_DEBUG_EXPR(NODE, VAL) \
3130 (decl_debug_expr_insert (VAR_DECL_CHECK (NODE), VAL))
3132 /* An initialization priority. */
3133 typedef unsigned short priority_type;
3135 extern priority_type decl_init_priority_lookup (tree);
3136 extern priority_type decl_fini_priority_lookup (tree);
3137 extern void decl_init_priority_insert (tree, priority_type);
3138 extern void decl_fini_priority_insert (tree, priority_type);
3140 /* For a VAR_DECL or FUNCTION_DECL the initialization priority of
3142 #define DECL_INIT_PRIORITY(NODE) \
3143 (decl_init_priority_lookup (NODE))
3144 /* Set the initialization priority for NODE to VAL. */
3145 #define SET_DECL_INIT_PRIORITY(NODE, VAL) \
3146 (decl_init_priority_insert (NODE, VAL))
3148 /* For a FUNCTION_DECL the finalization priority of NODE. */
3149 #define DECL_FINI_PRIORITY(NODE) \
3150 (decl_fini_priority_lookup (NODE))
3151 /* Set the finalization priority for NODE to VAL. */
3152 #define SET_DECL_FINI_PRIORITY(NODE, VAL) \
3153 (decl_fini_priority_insert (NODE, VAL))
3155 /* The initialization priority for entities for which no explicit
3156 initialization priority has been specified. */
3157 #define DEFAULT_INIT_PRIORITY 65535
3159 /* The maximum allowed initialization priority. */
3160 #define MAX_INIT_PRIORITY 65535
3162 /* The largest priority value reserved for use by system runtime
3164 #define MAX_RESERVED_INIT_PRIORITY 100
3166 #define DECL_VAR_ANN_PTR(NODE) \
3167 (TREE_CODE (NODE) == VAR_DECL ? &(NODE)->var_decl.ann \
3168 : TREE_CODE (NODE) == PARM_DECL ? &(NODE)->parm_decl.ann \
3169 : TREE_CODE (NODE) == RESULT_DECL ? &(NODE)->result_decl.ann \
3172 struct GTY(()) tree_var_decl {
3173 struct tree_decl_with_vis common;
3174 struct var_ann_d *ann;
3178 /* This field is used to reference anything in decl.result and is meant only
3179 for use by the garbage collector. */
3180 #define DECL_RESULT_FLD(NODE) \
3181 (DECL_NON_COMMON_CHECK (NODE)->decl_non_common.result)
3183 /* The DECL_VINDEX is used for FUNCTION_DECLS in two different ways.
3184 Before the struct containing the FUNCTION_DECL is laid out,
3185 DECL_VINDEX may point to a FUNCTION_DECL in a base class which
3186 is the FUNCTION_DECL which this FUNCTION_DECL will replace as a virtual
3187 function. When the class is laid out, this pointer is changed
3188 to an INTEGER_CST node which is suitable for use as an index
3189 into the virtual function table.
3190 C++ also uses this field in namespaces, hence the DECL_NON_COMMON_CHECK. */
3191 #define DECL_VINDEX(NODE) \
3192 (DECL_NON_COMMON_CHECK (NODE)->decl_non_common.vindex)
3195 tree_decl_non_common {
3196 struct tree_decl_with_vis common;
3197 /* C++ uses this in namespaces. */
3199 /* C++ uses this in templates. */
3201 /* Almost all FE's use this. */
3203 /* C++ uses this in namespaces. */
3207 /* In FUNCTION_DECL, holds the decl for the return value. */
3208 #define DECL_RESULT(NODE) (FUNCTION_DECL_CHECK (NODE)->decl_non_common.result)
3210 /* In a FUNCTION_DECL, nonzero if the function cannot be inlined. */
3211 #define DECL_UNINLINABLE(NODE) \
3212 (FUNCTION_DECL_CHECK (NODE)->function_decl.uninlinable)
3214 /* In a FUNCTION_DECL, the saved representation of the body of the
3216 #define DECL_SAVED_TREE(NODE) \
3217 (FUNCTION_DECL_CHECK (NODE)->decl_non_common.saved_tree)
3219 /* Nonzero in a FUNCTION_DECL means this function should be treated
3220 as if it were a malloc, meaning it returns a pointer that is
3222 #define DECL_IS_MALLOC(NODE) \
3223 (FUNCTION_DECL_CHECK (NODE)->function_decl.malloc_flag)
3225 /* Nonzero in a FUNCTION_DECL means this function should be treated as
3226 C++ operator new, meaning that it returns a pointer for which we
3227 should not use type based aliasing. */
3228 #define DECL_IS_OPERATOR_NEW(NODE) \
3229 (FUNCTION_DECL_CHECK (NODE)->function_decl.operator_new_flag)
3231 /* Nonzero in a FUNCTION_DECL means this function may return more
3233 #define DECL_IS_RETURNS_TWICE(NODE) \
3234 (FUNCTION_DECL_CHECK (NODE)->function_decl.returns_twice_flag)
3236 /* Nonzero in a FUNCTION_DECL means this function should be treated
3237 as "pure" function (like const function, but may read global memory). */
3238 #define DECL_PURE_P(NODE) (FUNCTION_DECL_CHECK (NODE)->function_decl.pure_flag)
3240 /* Nonzero only if one of TREE_READONLY or DECL_PURE_P is nonzero AND
3241 the const or pure function may not terminate. When this is nonzero
3242 for a const or pure function, it can be dealt with by cse passes
3243 but cannot be removed by dce passes since you are not allowed to
3244 change an infinite looping program into one that terminates without
3246 #define DECL_LOOPING_CONST_OR_PURE_P(NODE) \
3247 (FUNCTION_DECL_CHECK (NODE)->function_decl.looping_const_or_pure_flag)
3249 /* Nonzero in a FUNCTION_DECL means this function should be treated
3250 as "novops" function (function that does not read global memory,
3251 but may have arbitrary side effects). */
3252 #define DECL_IS_NOVOPS(NODE) \
3253 (FUNCTION_DECL_CHECK (NODE)->function_decl.novops_flag)
3255 /* Used in FUNCTION_DECLs to indicate that they should be run automatically
3256 at the beginning or end of execution. */
3257 #define DECL_STATIC_CONSTRUCTOR(NODE) \
3258 (FUNCTION_DECL_CHECK (NODE)->function_decl.static_ctor_flag)
3260 #define DECL_STATIC_DESTRUCTOR(NODE) \
3261 (FUNCTION_DECL_CHECK (NODE)->function_decl.static_dtor_flag)
3263 /* Used in FUNCTION_DECLs to indicate that function entry and exit should
3264 be instrumented with calls to support routines. */
3265 #define DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT(NODE) \
3266 (FUNCTION_DECL_CHECK (NODE)->function_decl.no_instrument_function_entry_exit)
3268 /* Used in FUNCTION_DECLs to indicate that limit-stack-* should be
3269 disabled in this function. */
3270 #define DECL_NO_LIMIT_STACK(NODE) \
3271 (FUNCTION_DECL_CHECK (NODE)->function_decl.no_limit_stack)
3273 /* In a FUNCTION_DECL indicates that a static chain is needed. */
3274 #define DECL_STATIC_CHAIN(NODE) \
3275 (FUNCTION_DECL_CHECK (NODE)->function_decl.regdecl_flag)
3277 /* Nonzero for a decl that cgraph has decided should be inlined into
3278 at least one call site. It is not meaningful to look at this
3279 directly; always use cgraph_function_possibly_inlined_p. */
3280 #define DECL_POSSIBLY_INLINED(DECL) \
3281 FUNCTION_DECL_CHECK (DECL)->function_decl.possibly_inlined
3283 /* Nonzero in a FUNCTION_DECL means that this function was declared inline,
3284 such as via the `inline' keyword in C/C++. This flag controls the linkage
3285 semantics of 'inline' */
3286 #define DECL_DECLARED_INLINE_P(NODE) \
3287 (FUNCTION_DECL_CHECK (NODE)->function_decl.declared_inline_flag)
3289 /* Nonzero in a FUNCTION_DECL means this function should not get
3290 -Winline warnings. */
3291 #define DECL_NO_INLINE_WARNING_P(NODE) \
3292 (FUNCTION_DECL_CHECK (NODE)->function_decl.no_inline_warning_flag)
3294 /* Nonzero in a FUNCTION_DECL that should be always inlined by the inliner
3295 disregarding size and cost heuristics. This is equivalent to using
3296 the always_inline attribute without the required diagnostics if the
3297 function cannot be inlined. */
3298 #define DECL_DISREGARD_INLINE_LIMITS(NODE) \
3299 (FUNCTION_DECL_CHECK (NODE)->function_decl.disregard_inline_limits)
3301 /* For FUNCTION_DECL, this holds a pointer to a structure ("struct function")
3302 that describes the status of this function. */
3303 #define DECL_STRUCT_FUNCTION(NODE) \
3304 (FUNCTION_DECL_CHECK (NODE)->function_decl.f)
3306 /* In a FUNCTION_DECL, nonzero means a built in function. */
3307 #define DECL_BUILT_IN(NODE) (DECL_BUILT_IN_CLASS (NODE) != NOT_BUILT_IN)
3309 /* For a builtin function, identify which part of the compiler defined it. */
3310 #define DECL_BUILT_IN_CLASS(NODE) \
3311 (FUNCTION_DECL_CHECK (NODE)->function_decl.built_in_class)
3313 /* In FUNCTION_DECL, a chain of ..._DECL nodes.
3314 VAR_DECL and PARM_DECL reserve the arguments slot for language-specific
3316 #define DECL_ARGUMENTS(NODE) \
3317 (FUNCTION_DECL_CHECK (NODE)->decl_non_common.arguments)
3318 #define DECL_ARGUMENT_FLD(NODE) \
3319 (DECL_NON_COMMON_CHECK (NODE)->decl_non_common.arguments)
3321 /* In FUNCTION_DECL, the function specific target options to use when compiling
3323 #define DECL_FUNCTION_SPECIFIC_TARGET(NODE) \
3324 (FUNCTION_DECL_CHECK (NODE)->function_decl.function_specific_target)
3326 /* In FUNCTION_DECL, the function specific optimization options to use when
3327 compiling this function. */
3328 #define DECL_FUNCTION_SPECIFIC_OPTIMIZATION(NODE) \
3329 (FUNCTION_DECL_CHECK (NODE)->function_decl.function_specific_optimization)
3331 /* FUNCTION_DECL inherits from DECL_NON_COMMON because of the use of the
3332 arguments/result/saved_tree fields by front ends. It was either inherit
3333 FUNCTION_DECL from non_common, or inherit non_common from FUNCTION_DECL,
3334 which seemed a bit strange. */
3336 struct GTY(()) tree_function_decl {
3337 struct tree_decl_non_common common;
3341 /* The personality function. Used for stack unwinding. */
3344 /* Function specific options that are used by this function. */
3345 tree function_specific_target; /* target options */
3346 tree function_specific_optimization; /* optimization options */
3348 /* In a FUNCTION_DECL for which DECL_BUILT_IN holds, this is
3349 DECL_FUNCTION_CODE. Otherwise unused.
3350 ??? The bitfield needs to be able to hold all target function
3352 ENUM_BITFIELD(built_in_function) function_code : 11;
3353 ENUM_BITFIELD(built_in_class) built_in_class : 2;
3355 unsigned static_ctor_flag : 1;
3356 unsigned static_dtor_flag : 1;
3357 unsigned uninlinable : 1;
3359 unsigned possibly_inlined : 1;
3360 unsigned novops_flag : 1;
3361 unsigned returns_twice_flag : 1;
3362 unsigned malloc_flag : 1;
3363 unsigned operator_new_flag : 1;
3364 unsigned declared_inline_flag : 1;
3365 unsigned regdecl_flag : 1;
3367 unsigned no_inline_warning_flag : 1;
3368 unsigned no_instrument_function_entry_exit : 1;
3369 unsigned no_limit_stack : 1;
3370 unsigned disregard_inline_limits : 1;
3371 unsigned pure_flag : 1;
3372 unsigned looping_const_or_pure_flag : 1;
3378 /* For a TYPE_DECL, holds the "original" type. (TREE_TYPE has the copy.) */
3379 #define DECL_ORIGINAL_TYPE(NODE) \
3380 (TYPE_DECL_CHECK (NODE)->decl_non_common.result)
3382 /* In a TYPE_DECL nonzero means the detail info about this type is not dumped
3383 into stabs. Instead it will generate cross reference ('x') of names.
3384 This uses the same flag as DECL_EXTERNAL. */
3385 #define TYPE_DECL_SUPPRESS_DEBUG(NODE) \
3386 (TYPE_DECL_CHECK (NODE)->decl_common.decl_flag_1)
3388 /* Getter of the imported declaration associated to the
3389 IMPORTED_DECL node. */
3390 #define IMPORTED_DECL_ASSOCIATED_DECL(NODE) \
3391 (DECL_INITIAL (IMPORTED_DECL_CHECK (NODE)))
3393 struct GTY(()) tree_type_decl {
3394 struct tree_decl_non_common common;
3398 /* A STATEMENT_LIST chains statements together in GENERIC and GIMPLE.
3399 To reduce overhead, the nodes containing the statements are not trees.
3400 This avoids the overhead of tree_common on all linked list elements.
3402 Use the interface in tree-iterator.h to access this node. */
3404 #define STATEMENT_LIST_HEAD(NODE) \
3405 (STATEMENT_LIST_CHECK (NODE)->stmt_list.head)
3406 #define STATEMENT_LIST_TAIL(NODE) \
3407 (STATEMENT_LIST_CHECK (NODE)->stmt_list.tail)
3409 struct GTY ((chain_next ("%h.next"), chain_prev ("%h.prev"))) tree_statement_list_node
3411 struct tree_statement_list_node *prev;
3412 struct tree_statement_list_node *next;
3416 struct GTY(()) tree_statement_list
3418 struct tree_common common;
3419 struct tree_statement_list_node *head;
3420 struct tree_statement_list_node *tail;
3424 /* Optimization options used by a function. */
3426 struct GTY(()) tree_optimization_option {
3427 struct tree_common common;
3429 /* The optimization options used by the user. */
3430 struct cl_optimization opts;
3433 #define TREE_OPTIMIZATION(NODE) \
3434 (&OPTIMIZATION_NODE_CHECK (NODE)->optimization.opts)
3436 /* Return a tree node that encapsulates the current optimization options. */
3437 extern tree build_optimization_node (void);
3439 /* Target options used by a function. */
3441 struct GTY(()) tree_target_option {
3442 struct tree_common common;
3444 /* The optimization options used by the user. */
3445 struct cl_target_option opts;
3448 #define TREE_TARGET_OPTION(NODE) \
3449 (&TARGET_OPTION_NODE_CHECK (NODE)->target_option.opts)
3451 /* Return a tree node that encapsulates the current target options. */
3452 extern tree build_target_option_node (void);
3455 /* Define the overall contents of a tree node.
3456 It may be any of the structures declared above
3457 for various types of node. */
3459 union GTY ((ptr_alias (union lang_tree_node),
3460 desc ("tree_node_structure (&%h)"))) tree_node {
3461 struct tree_base GTY ((tag ("TS_BASE"))) base;
3462 struct tree_common GTY ((tag ("TS_COMMON"))) common;
3463 struct tree_int_cst GTY ((tag ("TS_INT_CST"))) int_cst;
3464 struct tree_real_cst GTY ((tag ("TS_REAL_CST"))) real_cst;
3465 struct tree_fixed_cst GTY ((tag ("TS_FIXED_CST"))) fixed_cst;
3466 struct tree_vector GTY ((tag ("TS_VECTOR"))) vector;
3467 struct tree_string GTY ((tag ("TS_STRING"))) string;
3468 struct tree_complex GTY ((tag ("TS_COMPLEX"))) complex;
3469 struct tree_identifier GTY ((tag ("TS_IDENTIFIER"))) identifier;
3470 struct tree_decl_minimal GTY((tag ("TS_DECL_MINIMAL"))) decl_minimal;
3471 struct tree_decl_common GTY ((tag ("TS_DECL_COMMON"))) decl_common;
3472 struct tree_decl_with_rtl GTY ((tag ("TS_DECL_WRTL"))) decl_with_rtl;
3473 struct tree_decl_non_common GTY ((tag ("TS_DECL_NON_COMMON"))) decl_non_common;
3474 struct tree_parm_decl GTY ((tag ("TS_PARM_DECL"))) parm_decl;
3475 struct tree_decl_with_vis GTY ((tag ("TS_DECL_WITH_VIS"))) decl_with_vis;
3476 struct tree_var_decl GTY ((tag ("TS_VAR_DECL"))) var_decl;
3477 struct tree_field_decl GTY ((tag ("TS_FIELD_DECL"))) field_decl;
3478 struct tree_label_decl GTY ((tag ("TS_LABEL_DECL"))) label_decl;
3479 struct tree_result_decl GTY ((tag ("TS_RESULT_DECL"))) result_decl;
3480 struct tree_const_decl GTY ((tag ("TS_CONST_DECL"))) const_decl;
3481 struct tree_type_decl GTY ((tag ("TS_TYPE_DECL"))) type_decl;
3482 struct tree_function_decl GTY ((tag ("TS_FUNCTION_DECL"))) function_decl;
3483 struct tree_type GTY ((tag ("TS_TYPE"))) type;
3484 struct tree_list GTY ((tag ("TS_LIST"))) list;
3485 struct tree_vec GTY ((tag ("TS_VEC"))) vec;
3486 struct tree_exp GTY ((tag ("TS_EXP"))) exp;
3487 struct tree_ssa_name GTY ((tag ("TS_SSA_NAME"))) ssa_name;
3488 struct tree_block GTY ((tag ("TS_BLOCK"))) block;
3489 struct tree_binfo GTY ((tag ("TS_BINFO"))) binfo;
3490 struct tree_statement_list GTY ((tag ("TS_STATEMENT_LIST"))) stmt_list;
3491 struct tree_constructor GTY ((tag ("TS_CONSTRUCTOR"))) constructor;
3492 struct tree_omp_clause GTY ((tag ("TS_OMP_CLAUSE"))) omp_clause;
3493 struct tree_optimization_option GTY ((tag ("TS_OPTIMIZATION"))) optimization;
3494 struct tree_target_option GTY ((tag ("TS_TARGET_OPTION"))) target_option;
3497 /* Standard named or nameless data types of the C compiler. */
3519 TI_INTEGER_MINUS_ONE,
3536 TI_COMPLEX_INTEGER_TYPE,
3537 TI_COMPLEX_FLOAT_TYPE,
3538 TI_COMPLEX_DOUBLE_TYPE,
3539 TI_COMPLEX_LONG_DOUBLE_TYPE,
3543 TI_LONG_DOUBLE_TYPE,
3547 TI_LONG_DOUBLE_PTR_TYPE,
3548 TI_INTEGER_PTR_TYPE,
3557 TI_VA_LIST_GPR_COUNTER_FIELD,
3558 TI_VA_LIST_FPR_COUNTER_FIELD,