1 /* Definitions for c-common.c.
2 Copyright (C) 1987-2016 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
20 #ifndef GCC_C_COMMON_H
21 #define GCC_C_COMMON_H
23 #include "splay-tree.h"
27 #include "fold-const.h"
29 /* In order for the format checking to accept the C frontend
30 diagnostic framework extensions, you must include this file before
31 diagnostic-core.h, not after. The C front end formats are a subset of those
32 for C++, so they are the appropriate set to use in common code;
33 cp-tree.h overrides this for C++. */
34 #if defined(GCC_DIAGNOSTIC_CORE_H)
36 In order for the format checking to accept the C front end diagnostic \
37 framework extensions, you must include this file before diagnostic-core.h \
40 #ifndef GCC_DIAG_STYLE
41 #define GCC_DIAG_STYLE __gcc_cdiag__
43 #include "diagnostic-core.h"
45 /* Usage of TREE_LANG_FLAG_?:
46 0: IDENTIFIER_MARKED (used by search routines).
47 C_MAYBE_CONST_EXPR_INT_OPERANDS (in C_MAYBE_CONST_EXPR, for C)
48 1: C_DECLARED_LABEL_FLAG (in LABEL_DECL)
49 STATEMENT_LIST_STMT_EXPR (in STATEMENT_LIST)
50 C_MAYBE_CONST_EXPR_NON_CONST (in C_MAYBE_CONST_EXPR, for C)
52 3: STATEMENT_LIST_HAS_LABEL (in STATEMENT_LIST)
56 /* Reserved identifiers. This is the union of all the keywords for C,
57 C++, and Objective-C. All the type modifiers have to be in one
58 block at the beginning, because they are used as mask bits. There
59 are 28 type modifiers; if we add many more we will have to redesign
60 the mask mechanism. */
65 /* C, in empirical order of frequency. */
67 RID_UNSIGNED
, RID_LONG
, RID_CONST
, RID_EXTERN
,
68 RID_REGISTER
, RID_TYPEDEF
, RID_SHORT
, RID_INLINE
,
69 RID_VOLATILE
, RID_SIGNED
, RID_AUTO
, RID_RESTRICT
,
70 RID_NORETURN
, RID_ATOMIC
,
73 RID_COMPLEX
, RID_THREAD
, RID_SAT
,
76 RID_FRIEND
, RID_VIRTUAL
, RID_EXPLICIT
, RID_EXPORT
, RID_MUTABLE
,
78 /* ObjC ("PQ" reserved words - they do not appear after a '@' and
79 are keywords only in specific contexts) */
80 RID_IN
, RID_OUT
, RID_INOUT
, RID_BYCOPY
, RID_BYREF
, RID_ONEWAY
,
82 /* ObjC ("PATTR" reserved words - they do not appear after a '@'
83 and are keywords only as property attributes) */
84 RID_GETTER
, RID_SETTER
,
85 RID_READONLY
, RID_READWRITE
,
86 RID_ASSIGN
, RID_RETAIN
, RID_COPY
,
89 /* C (reserved and imaginary types not implemented, so any use is a
94 RID_INT
, RID_CHAR
, RID_FLOAT
, RID_DOUBLE
, RID_VOID
,
95 RID_ENUM
, RID_STRUCT
, RID_UNION
, RID_IF
, RID_ELSE
,
96 RID_WHILE
, RID_DO
, RID_FOR
, RID_SWITCH
, RID_CASE
,
97 RID_DEFAULT
, RID_BREAK
, RID_CONTINUE
, RID_RETURN
, RID_GOTO
,
101 RID_ASM
, RID_TYPEOF
, RID_ALIGNOF
, RID_ATTRIBUTE
, RID_VA_ARG
,
102 RID_EXTENSION
, RID_IMAGPART
, RID_REALPART
, RID_LABEL
, RID_CHOOSE_EXPR
,
103 RID_TYPES_COMPATIBLE_P
, RID_BUILTIN_COMPLEX
, RID_BUILTIN_SHUFFLE
,
104 RID_DFLOAT32
, RID_DFLOAT64
, RID_DFLOAT128
,
106 /* TS 18661-3 keywords, in the same sequence as the TI_* values. */
108 RID_FLOATN_NX_FIRST
= RID_FLOAT16
,
115 #define CASE_RID_FLOATN_NX \
116 case RID_FLOAT16: case RID_FLOAT32: case RID_FLOAT64: case RID_FLOAT128: \
117 case RID_FLOAT32X: case RID_FLOAT64X: case RID_FLOAT128X
119 RID_FRACT
, RID_ACCUM
, RID_AUTO_TYPE
, RID_BUILTIN_CALL_WITH_STATIC_CHAIN
,
122 RID_ALIGNAS
, RID_GENERIC
,
124 /* This means to warn that this is a C++ keyword, and then treat it
125 as a normal identifier. */
128 /* GNU transactional memory extension */
129 RID_TRANSACTION_ATOMIC
, RID_TRANSACTION_RELAXED
, RID_TRANSACTION_CANCEL
,
131 /* Too many ways of getting the name of a function as a string */
132 RID_FUNCTION_NAME
, RID_PRETTY_FUNCTION_NAME
, RID_C99_FUNCTION_NAME
,
134 /* C++ (some of these are keywords in Objective-C as well, but only
135 if they appear after a '@') */
136 RID_BOOL
, RID_WCHAR
, RID_CLASS
,
137 RID_PUBLIC
, RID_PRIVATE
, RID_PROTECTED
,
138 RID_TEMPLATE
, RID_NULL
, RID_CATCH
,
139 RID_DELETE
, RID_FALSE
, RID_NAMESPACE
,
140 RID_NEW
, RID_OFFSETOF
, RID_OPERATOR
,
141 RID_THIS
, RID_THROW
, RID_TRUE
,
142 RID_TRY
, RID_TYPENAME
, RID_TYPEID
,
143 RID_USING
, RID_CHAR16
, RID_CHAR32
,
146 RID_CONSTCAST
, RID_DYNCAST
, RID_REINTCAST
, RID_STATCAST
,
149 RID_BASES
, RID_DIRECT_BASES
,
150 RID_HAS_NOTHROW_ASSIGN
, RID_HAS_NOTHROW_CONSTRUCTOR
,
151 RID_HAS_NOTHROW_COPY
, RID_HAS_TRIVIAL_ASSIGN
,
152 RID_HAS_TRIVIAL_CONSTRUCTOR
, RID_HAS_TRIVIAL_COPY
,
153 RID_HAS_TRIVIAL_DESTRUCTOR
, RID_HAS_UNIQUE_OBJ_REPRESENTATIONS
,
154 RID_HAS_VIRTUAL_DESTRUCTOR
,
155 RID_IS_ABSTRACT
, RID_IS_BASE_OF
,
157 RID_IS_EMPTY
, RID_IS_ENUM
,
158 RID_IS_FINAL
, RID_IS_LITERAL_TYPE
,
159 RID_IS_POD
, RID_IS_POLYMORPHIC
,
161 RID_IS_STD_LAYOUT
, RID_IS_TRIVIAL
,
162 RID_IS_TRIVIALLY_ASSIGNABLE
, RID_IS_TRIVIALLY_CONSTRUCTIBLE
,
163 RID_IS_TRIVIALLY_COPYABLE
,
164 RID_IS_UNION
, RID_UNDERLYING_TYPE
,
167 RID_CONSTEXPR
, RID_DECLTYPE
, RID_NOEXCEPT
, RID_NULLPTR
, RID_STATIC_ASSERT
,
170 RID_CONCEPT
, RID_REQUIRES
,
172 /* C++ transactional memory. */
173 RID_ATOMIC_NOEXCEPT
, RID_ATOMIC_CANCEL
, RID_SYNCHRONIZED
,
175 /* Cilk Plus keywords. */
176 RID_CILK_SPAWN
, RID_CILK_SYNC
, RID_CILK_FOR
,
178 /* Objective-C ("AT" reserved words - they are only keywords when
180 RID_AT_ENCODE
, RID_AT_END
,
181 RID_AT_CLASS
, RID_AT_ALIAS
, RID_AT_DEFS
,
182 RID_AT_PRIVATE
, RID_AT_PROTECTED
, RID_AT_PUBLIC
, RID_AT_PACKAGE
,
183 RID_AT_PROTOCOL
, RID_AT_SELECTOR
,
184 RID_AT_THROW
, RID_AT_TRY
, RID_AT_CATCH
,
185 RID_AT_FINALLY
, RID_AT_SYNCHRONIZED
,
186 RID_AT_OPTIONAL
, RID_AT_REQUIRED
, RID_AT_PROPERTY
,
187 RID_AT_SYNTHESIZE
, RID_AT_DYNAMIC
,
189 RID_AT_IMPLEMENTATION
,
191 /* Named address support, mapping the keyword to a particular named address
192 number. Named address space 0 is reserved for the generic address. If
193 there are more than 254 named addresses, the addr_space_t type will need
194 to be grown from an unsigned char to unsigned short. */
195 RID_ADDR_SPACE_0
, /* generic address */
212 RID_FIRST_ADDR_SPACE
= RID_ADDR_SPACE_0
,
213 RID_LAST_ADDR_SPACE
= RID_ADDR_SPACE_15
,
215 /* __intN keywords. The _N_M here doesn't correspond to the intN
216 in the keyword; use the bitsize in int_n_t_data_t[M] for that.
217 For example, if int_n_t_data_t[0].bitsize is 13, then RID_INT_N_0
220 /* Note that the range to use is RID_FIRST_INT_N through
221 RID_FIRST_INT_N + NUM_INT_N_ENTS - 1 and c-parser.c has a list of
222 all RID_INT_N_* in a case statement. */
229 RID_FIRST_INT_N
= RID_INT_N_0
,
230 RID_LAST_INT_N
= RID_INT_N_3
,
234 RID_FIRST_MODIFIER
= RID_STATIC
,
235 RID_LAST_MODIFIER
= RID_ONEWAY
,
237 RID_FIRST_CXX11
= RID_CONSTEXPR
,
238 RID_LAST_CXX11
= RID_STATIC_ASSERT
,
239 RID_FIRST_AT
= RID_AT_ENCODE
,
240 RID_LAST_AT
= RID_AT_IMPLEMENTATION
,
241 RID_FIRST_PQ
= RID_IN
,
242 RID_LAST_PQ
= RID_ONEWAY
,
243 RID_FIRST_PATTR
= RID_GETTER
,
244 RID_LAST_PATTR
= RID_NONATOMIC
247 #define OBJC_IS_AT_KEYWORD(rid) \
248 ((unsigned int) (rid) >= (unsigned int) RID_FIRST_AT && \
249 (unsigned int) (rid) <= (unsigned int) RID_LAST_AT)
251 #define OBJC_IS_PQ_KEYWORD(rid) \
252 ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PQ && \
253 (unsigned int) (rid) <= (unsigned int) RID_LAST_PQ)
255 #define OBJC_IS_PATTR_KEYWORD(rid) \
256 ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PATTR && \
257 (unsigned int) (rid) <= (unsigned int) RID_LAST_PATTR)
259 /* OBJC_IS_CXX_KEYWORD recognizes the 'CXX_OBJC' keywords (such as
260 'class') which are shared in a subtle way between Objective-C and
261 C++. When the lexer is lexing in Objective-C/Objective-C++, if it
262 finds '@' followed by one of these identifiers (eg, '@class'), it
263 recognizes the whole as an Objective-C keyword. If the identifier
264 is found elsewhere, it follows the rules of the C/C++ language.
266 #define OBJC_IS_CXX_KEYWORD(rid) \
267 (rid == RID_CLASS || rid == RID_SYNCHRONIZED \
268 || rid == RID_PUBLIC || rid == RID_PROTECTED || rid == RID_PRIVATE \
269 || rid == RID_TRY || rid == RID_THROW || rid == RID_CATCH)
271 /* The elements of `ridpointers' are identifier nodes for the reserved
272 type names and storage classes. It is indexed by a RID_... value. */
273 extern GTY ((length ("(int) RID_MAX"))) tree
*ridpointers
;
275 /* Standard named or nameless data types of the C compiler. */
282 CTI_UNDERLYING_WCHAR_TYPE
,
284 CTI_SIGNED_SIZE_TYPE
, /* For format checking only. */
285 CTI_UNSIGNED_PTRDIFF_TYPE
, /* For format checking only. */
288 CTI_WIDEST_INT_LIT_TYPE
,
289 CTI_WIDEST_UINT_LIT_TYPE
,
291 /* Types for <stdint.h>, that may not be defined on all
303 CTI_INT_LEAST16_TYPE
,
304 CTI_INT_LEAST32_TYPE
,
305 CTI_INT_LEAST64_TYPE
,
306 CTI_UINT_LEAST8_TYPE
,
307 CTI_UINT_LEAST16_TYPE
,
308 CTI_UINT_LEAST32_TYPE
,
309 CTI_UINT_LEAST64_TYPE
,
315 CTI_UINT_FAST16_TYPE
,
316 CTI_UINT_FAST32_TYPE
,
317 CTI_UINT_FAST64_TYPE
,
322 CTI_CHAR16_ARRAY_TYPE
,
323 CTI_CHAR32_ARRAY_TYPE
,
324 CTI_WCHAR_ARRAY_TYPE
,
326 CTI_CONST_STRING_TYPE
,
328 /* Type for boolean expressions (bool in C++, int in C). */
331 CTI_TRUTHVALUE_FALSE
,
333 CTI_DEFAULT_FUNCTION_TYPE
,
335 /* These are not types, but we have to look them up all the time. */
336 CTI_FUNCTION_NAME_DECL
,
337 CTI_PRETTY_FUNCTION_NAME_DECL
,
338 CTI_C99_FUNCTION_NAME_DECL
,
339 CTI_SAVED_FUNCTION_NAME_DECLS
,
346 #define C_CPP_HASHNODE(id) \
347 (&(((struct c_common_identifier *) (id))->node))
348 #define C_RID_CODE(id) \
349 ((enum rid) (((struct c_common_identifier *) (id))->node.rid_code))
350 #define C_SET_RID_CODE(id, code) \
351 (((struct c_common_identifier *) (id))->node.rid_code = (unsigned char) code)
353 /* Identifier part common to the C front ends. Inherits from
354 tree_identifier, despite appearances. */
355 struct GTY(()) c_common_identifier
{
356 struct tree_common common
;
357 struct cpp_hashnode node
;
360 /* An entry in the reserved keyword table. */
362 struct c_common_resword
364 const char *const word
;
365 ENUM_BITFIELD(rid
) const rid
: 16;
366 const unsigned int disable
: 16;
369 /* Mode used to build pointers (VOIDmode means ptr_mode). */
371 extern machine_mode c_default_pointer_mode
;
373 /* Extra cpp_ttype values for C++. */
375 /* A token type for template-ids. If a template-id is processed while
376 parsing tentatively, it is replaced with a CPP_TEMPLATE_ID token;
377 the value of the CPP_TEMPLATE_ID is whatever was returned by
378 cp_parser_template_id. */
379 #define CPP_TEMPLATE_ID ((enum cpp_ttype) (CPP_KEYWORD + 1))
381 /* A token type for nested-name-specifiers. If a
382 nested-name-specifier is processed while parsing tentatively, it is
383 replaced with a CPP_NESTED_NAME_SPECIFIER token; the value of the
384 CPP_NESTED_NAME_SPECIFIER is whatever was returned by
385 cp_parser_nested_name_specifier_opt. */
386 #define CPP_NESTED_NAME_SPECIFIER ((enum cpp_ttype) (CPP_TEMPLATE_ID + 1))
388 /* A token type for pre-parsed C++0x decltype. */
389 #define CPP_DECLTYPE ((enum cpp_ttype) (CPP_NESTED_NAME_SPECIFIER + 1))
391 /* A token type for pre-parsed primary-expression (lambda- or statement-). */
392 #define CPP_PREPARSED_EXPR ((enum cpp_ttype) (CPP_DECLTYPE + 1))
394 /* The number of token types, including C++-specific ones. */
395 #define N_CP_TTYPES ((int) (CPP_PREPARSED_EXPR + 1))
397 /* Disable mask. Keywords are disabled if (reswords[i].disable &
398 mask) is _true_. Thus for keywords which are present in all
399 languages the disable field is zero. */
401 #define D_CONLY 0x001 /* C only (not in C++). */
402 #define D_CXXONLY 0x002 /* C++ only (not in C). */
403 #define D_C99 0x004 /* In C, C99 only. */
404 #define D_CXX11 0x008 /* In C++, C++11 only. */
405 #define D_EXT 0x010 /* GCC extension. */
406 #define D_EXT89 0x020 /* GCC extension incorporated in C99. */
407 #define D_ASM 0x040 /* Disabled by -fno-asm. */
408 #define D_OBJC 0x080 /* In Objective C and neither C nor C++. */
409 #define D_CXX_OBJC 0x100 /* In Objective C, and C++, but not C. */
410 #define D_CXXWARN 0x200 /* In C warn with -Wcxx-compat. */
411 #define D_CXX_CONCEPTS 0x400 /* In C++, only with concepts. */
412 #define D_TRANSMEM 0X800 /* C++ transactional memory TS. */
414 #define D_CXX_CONCEPTS_FLAGS D_CXXONLY | D_CXX_CONCEPTS
416 /* The reserved keyword table. */
417 extern const struct c_common_resword c_common_reswords
[];
419 /* The number of items in the reserved keyword table. */
420 extern const unsigned int num_c_common_reswords
;
422 #define char16_type_node c_global_trees[CTI_CHAR16_TYPE]
423 #define char32_type_node c_global_trees[CTI_CHAR32_TYPE]
424 #define wchar_type_node c_global_trees[CTI_WCHAR_TYPE]
425 #define underlying_wchar_type_node c_global_trees[CTI_UNDERLYING_WCHAR_TYPE]
426 #define wint_type_node c_global_trees[CTI_WINT_TYPE]
427 #define signed_size_type_node c_global_trees[CTI_SIGNED_SIZE_TYPE]
428 #define unsigned_ptrdiff_type_node c_global_trees[CTI_UNSIGNED_PTRDIFF_TYPE]
429 #define intmax_type_node c_global_trees[CTI_INTMAX_TYPE]
430 #define uintmax_type_node c_global_trees[CTI_UINTMAX_TYPE]
431 #define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE]
432 #define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE]
434 #define sig_atomic_type_node c_global_trees[CTI_SIG_ATOMIC_TYPE]
435 #define int8_type_node c_global_trees[CTI_INT8_TYPE]
436 #define int16_type_node c_global_trees[CTI_INT16_TYPE]
437 #define int32_type_node c_global_trees[CTI_INT32_TYPE]
438 #define int64_type_node c_global_trees[CTI_INT64_TYPE]
439 #define uint8_type_node c_global_trees[CTI_UINT8_TYPE]
440 #define c_uint16_type_node c_global_trees[CTI_UINT16_TYPE]
441 #define c_uint32_type_node c_global_trees[CTI_UINT32_TYPE]
442 #define c_uint64_type_node c_global_trees[CTI_UINT64_TYPE]
443 #define int_least8_type_node c_global_trees[CTI_INT_LEAST8_TYPE]
444 #define int_least16_type_node c_global_trees[CTI_INT_LEAST16_TYPE]
445 #define int_least32_type_node c_global_trees[CTI_INT_LEAST32_TYPE]
446 #define int_least64_type_node c_global_trees[CTI_INT_LEAST64_TYPE]
447 #define uint_least8_type_node c_global_trees[CTI_UINT_LEAST8_TYPE]
448 #define uint_least16_type_node c_global_trees[CTI_UINT_LEAST16_TYPE]
449 #define uint_least32_type_node c_global_trees[CTI_UINT_LEAST32_TYPE]
450 #define uint_least64_type_node c_global_trees[CTI_UINT_LEAST64_TYPE]
451 #define int_fast8_type_node c_global_trees[CTI_INT_FAST8_TYPE]
452 #define int_fast16_type_node c_global_trees[CTI_INT_FAST16_TYPE]
453 #define int_fast32_type_node c_global_trees[CTI_INT_FAST32_TYPE]
454 #define int_fast64_type_node c_global_trees[CTI_INT_FAST64_TYPE]
455 #define uint_fast8_type_node c_global_trees[CTI_UINT_FAST8_TYPE]
456 #define uint_fast16_type_node c_global_trees[CTI_UINT_FAST16_TYPE]
457 #define uint_fast32_type_node c_global_trees[CTI_UINT_FAST32_TYPE]
458 #define uint_fast64_type_node c_global_trees[CTI_UINT_FAST64_TYPE]
459 #define intptr_type_node c_global_trees[CTI_INTPTR_TYPE]
460 #define uintptr_type_node c_global_trees[CTI_UINTPTR_TYPE]
462 #define truthvalue_type_node c_global_trees[CTI_TRUTHVALUE_TYPE]
463 #define truthvalue_true_node c_global_trees[CTI_TRUTHVALUE_TRUE]
464 #define truthvalue_false_node c_global_trees[CTI_TRUTHVALUE_FALSE]
466 #define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE]
467 #define char16_array_type_node c_global_trees[CTI_CHAR16_ARRAY_TYPE]
468 #define char32_array_type_node c_global_trees[CTI_CHAR32_ARRAY_TYPE]
469 #define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE]
470 #define string_type_node c_global_trees[CTI_STRING_TYPE]
471 #define const_string_type_node c_global_trees[CTI_CONST_STRING_TYPE]
473 #define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE]
475 #define function_name_decl_node c_global_trees[CTI_FUNCTION_NAME_DECL]
476 #define pretty_function_name_decl_node c_global_trees[CTI_PRETTY_FUNCTION_NAME_DECL]
477 #define c99_function_name_decl_node c_global_trees[CTI_C99_FUNCTION_NAME_DECL]
478 #define saved_function_name_decls c_global_trees[CTI_SAVED_FUNCTION_NAME_DECLS]
480 /* The node for C++ `__null'. */
481 #define null_node c_global_trees[CTI_NULL]
483 extern GTY(()) tree c_global_trees
[CTI_MAX
];
485 /* In a RECORD_TYPE, a sorted array of the fields of the type, not a
486 tree for size reasons. */
487 struct GTY(()) sorted_fields_type
{
489 tree
GTY((length ("%h.len"))) elts
[1];
492 /* Mark which labels are explicitly declared.
493 These may be shadowed, and may be referenced from nested functions. */
494 #define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label)
498 clk_c
= 0, /* C90, C94, C99 or C11 */
499 clk_objc
= 1, /* clk_c with ObjC features. */
500 clk_cxx
= 2, /* ANSI/ISO C++ */
501 clk_objcxx
= 3 /* clk_cxx with ObjC features. */
504 /* To test for a specific language use c_language, defined by each
505 front end. For "ObjC features" or "not C++" use the macros. */
506 extern c_language_kind c_language
;
508 #define c_dialect_cxx() ((c_language & clk_cxx) != 0)
509 #define c_dialect_objc() ((c_language & clk_objc) != 0)
511 /* The various name of operator that appears in error messages. */
521 /* implicit conversion */
522 RO_IMPLICIT_CONVERSION
,
527 /* Information about a statement tree. */
529 struct GTY(()) stmt_tree_s
{
530 /* A stack of statement lists being collected. */
531 vec
<tree
, va_gc
> *x_cur_stmt_list
;
533 /* In C++, Nonzero if we should treat statements as full
534 expressions. In particular, this variable is non-zero if at the
535 end of a statement we should destroy any temporaries created
536 during that statement. Similarly, if, at the end of a block, we
537 should destroy any local variables in this block. Normally, this
538 variable is nonzero, since those are the normal semantics of
541 This flag has no effect in C. */
542 int stmts_are_full_exprs_p
;
545 typedef struct stmt_tree_s
*stmt_tree
;
547 /* Global state pertinent to the current function. Some C dialects
548 extend this structure with additional fields. */
550 struct GTY(()) c_language_function
{
551 /* While we are parsing the function, this contains information
552 about the statement-tree that we are building. */
553 struct stmt_tree_s x_stmt_tree
;
555 /* Vector of locally defined typedefs, for
556 -Wunused-local-typedefs. */
557 vec
<tree
, va_gc
> *local_typedefs
;
560 #define stmt_list_stack (current_stmt_tree ()->x_cur_stmt_list)
562 /* When building a statement-tree, this is the current statement list
564 #define cur_stmt_list (stmt_list_stack->last ())
566 #define building_stmt_list_p() (stmt_list_stack && !stmt_list_stack->is_empty())
568 /* Language-specific hooks. */
570 /* If non-NULL, this function is called after a precompile header file
572 extern void (*lang_post_pch_load
) (void);
574 extern void push_file_scope (void);
575 extern void pop_file_scope (void);
576 extern stmt_tree
current_stmt_tree (void);
577 extern tree
push_stmt_list (void);
578 extern tree
pop_stmt_list (tree
);
579 extern tree
add_stmt (tree
);
580 extern void push_cleanup (tree
, tree
, bool);
581 extern tree
pushdecl_top_level (tree
);
582 extern tree
pushdecl (tree
);
583 extern tree
build_modify_expr (location_t
, tree
, tree
, enum tree_code
,
584 location_t
, tree
, tree
);
585 extern tree
build_array_notation_expr (location_t
, tree
, tree
, enum tree_code
,
586 location_t
, tree
, tree
);
587 extern tree
build_array_notation_ref (location_t
, tree
, tree
, tree
, tree
, tree
);
588 extern tree
build_indirect_ref (location_t
, tree
, ref_operator
);
590 extern int field_decl_cmp (const void *, const void *);
591 extern void resort_sorted_fields (void *, void *, gt_pointer_operator
,
593 extern bool has_c_linkage (const_tree decl
);
594 extern bool c_decl_implicit (const_tree
);
596 /* Switches common to the C front ends. */
598 /* Nonzero means don't output line number information. */
600 extern char flag_no_line_commands
;
602 /* Nonzero causes -E output not to be done, but directives such as
603 #define that have side effects are still obeyed. */
605 extern char flag_no_output
;
607 /* Nonzero means dump macros in some fashion; contains the 'D', 'M',
608 'N' or 'U' of the command line switch. */
610 extern char flag_dump_macros
;
612 /* Nonzero means pass #include lines through to the output. */
614 extern char flag_dump_includes
;
616 /* Nonzero means process PCH files while preprocessing. */
618 extern bool flag_pch_preprocess
;
620 /* The file name to which we should write a precompiled header, or
621 NULL if no header will be written in this compile. */
623 extern const char *pch_file
;
625 /* Nonzero if an ISO standard was selected. It rejects macros in the
630 /* C/ObjC language option variables. */
633 /* Nonzero means allow type mismatches in conditional expressions;
634 just make their values `void'. */
636 extern int flag_cond_mismatch
;
638 /* Nonzero means enable C89 Amendment 1 features. */
640 extern int flag_isoc94
;
642 /* Nonzero means use the ISO C99 (or C11) dialect of C. */
644 extern int flag_isoc99
;
646 /* Nonzero means use the ISO C11 dialect of C. */
648 extern int flag_isoc11
;
650 /* Nonzero means that we have builtin functions, and main is an int. */
652 extern int flag_hosted
;
654 /* ObjC language option variables. */
657 /* Tells the compiler that this is a special run. Do not perform any
658 compiling, instead we are to test some platform dependent features
659 and output a C header file with appropriate definitions. */
661 extern int print_struct_values
;
663 /* Tells the compiler what is the constant string class for ObjC. */
665 extern const char *constant_string_class_name
;
668 /* C++ language option variables. */
670 /* The reference version of the ABI for -Wabi. */
672 extern int warn_abi_version
;
674 /* Return TRUE if one of {flag_abi_version,flag_abi_compat_version} is
675 less than N and the other is at least N. */
676 #define abi_compat_version_crosses(N) \
677 (abi_version_at_least(N) \
678 != (flag_abi_compat_version == 0 \
679 || flag_abi_compat_version >= (N)))
681 /* Return TRUE if one of {flag_abi_version,warn_abi_version} is
682 less than N and the other is at least N, for use by -Wabi. */
683 #define abi_version_crosses(N) \
684 (abi_version_at_least(N) \
685 != (warn_abi_version == 0 \
686 || warn_abi_version >= (N)))
688 /* Nonzero means generate separate instantiation control files and
689 juggle them at link time. */
691 extern int flag_use_repository
;
693 /* The supported C++ dialects. */
709 /* The C++ dialect being used. C++98 is the default. */
710 extern enum cxx_dialect cxx_dialect
;
712 /* Maximum template instantiation depth. This limit is rather
713 arbitrary, but it exists to limit the time it takes to notice
714 excessively recursive template instantiations. */
716 extern int max_tinst_depth
;
718 /* Nonzero means that we should not issue warnings about problems that
719 occur when the code is executed, because the code being processed
720 is not expected to be executed. This is set during parsing. This
721 is used for cases like sizeof() and "0 ? a : b". This is a count,
722 not a bool, because unexecuted expressions can nest. */
724 extern int c_inhibit_evaluation_warnings
;
726 /* Whether lexing has been completed, so subsequent preprocessor
727 errors should use the compiler's input_location. */
729 extern bool done_lexing
;
731 /* C types are partitioned into three subsets: object, function, and
733 #define C_TYPE_OBJECT_P(type) \
734 (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type))
736 #define C_TYPE_INCOMPLETE_P(type) \
737 (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type) == 0)
739 #define C_TYPE_FUNCTION_P(type) \
740 (TREE_CODE (type) == FUNCTION_TYPE)
742 /* For convenience we define a single macro to identify the class of
743 object or incomplete types. */
744 #define C_TYPE_OBJECT_OR_INCOMPLETE_P(type) \
745 (!C_TYPE_FUNCTION_P (type))
747 struct visibility_flags
749 unsigned inpragma
: 1; /* True when in #pragma GCC visibility. */
750 unsigned inlines_hidden
: 1; /* True when -finlineshidden in effect. */
753 /* These enumerators are possible types of unsafe conversions. */
754 enum conversion_safety
{
755 /* The conversion is safe. */
757 /* Another type of conversion with problems. */
759 /* Conversion between signed and unsigned integers
760 which are all warned about immediately, so this is unused. */
762 /* Conversions that reduce the precision of reals including conversions
763 from reals to integers. */
765 /* Conversions from complex to reals or integers, that discard imaginary
770 /* Global visibility options. */
771 extern struct visibility_flags visibility_options
;
773 /* Attribute table common to the C front ends. */
774 extern const struct attribute_spec c_common_attribute_table
[];
775 extern const struct attribute_spec c_common_format_attribute_table
[];
777 /* Pointer to function to lazily generate the VAR_DECL for __FUNCTION__ etc.
778 ID is the identifier to use, NAME is the string.
779 TYPE_DEP indicates whether it depends on type of the function or not
780 (i.e. __PRETTY_FUNCTION__). */
782 extern tree (*make_fname_decl
) (location_t
, tree
, int);
784 /* In c-decl.c and cp/tree.c. FIXME. */
785 extern void c_register_addr_space (const char *str
, addr_space_t as
);
788 extern bool in_late_binary_op
;
789 extern const char *c_addr_space_name (addr_space_t as
);
790 extern tree
identifier_global_value (tree
);
791 extern tree
c_linkage_bindings (tree
);
792 extern void record_builtin_type (enum rid
, const char *, tree
);
793 extern tree
build_void_list_node (void);
794 extern void start_fname_decls (void);
795 extern void finish_fname_decls (void);
796 extern const char *fname_as_string (int);
797 extern tree
fname_decl (location_t
, unsigned, tree
);
799 extern int check_user_alignment (const_tree
, bool);
800 extern void check_function_arguments (location_t loc
, const_tree
, int, tree
*);
801 extern void check_function_arguments_recurse (void (*)
803 unsigned HOST_WIDE_INT
),
805 unsigned HOST_WIDE_INT
);
806 extern bool check_builtin_function_arguments (location_t
, vec
<location_t
>,
808 extern void check_function_format (tree
, int, tree
*);
809 extern bool attribute_fallthrough_p (tree
);
810 extern tree
handle_unused_attribute (tree
*, tree
, tree
, int, bool *);
811 extern tree
handle_format_attribute (tree
*, tree
, tree
, int, bool *);
812 extern tree
handle_format_arg_attribute (tree
*, tree
, tree
, int, bool *);
813 extern bool attribute_takes_identifier_p (const_tree
);
814 extern bool c_common_handle_option (size_t, const char *, int, int, location_t
,
815 const struct cl_option_handlers
*);
816 extern bool default_handle_c_option (size_t, const char *, int);
817 extern tree
c_common_type_for_mode (machine_mode
, int);
818 extern tree
c_common_type_for_size (unsigned int, int);
819 extern tree
c_common_fixed_point_type_for_size (unsigned int, unsigned int,
821 extern tree
c_common_unsigned_type (tree
);
822 extern tree
c_common_signed_type (tree
);
823 extern tree
c_common_signed_or_unsigned_type (int, tree
);
824 extern void c_common_init_ts (void);
825 extern tree
c_build_bitfield_integer_type (unsigned HOST_WIDE_INT
, int);
826 extern enum conversion_safety
unsafe_conversion_p (location_t
, tree
, tree
,
828 extern bool decl_with_nonnull_addr_p (const_tree
);
829 extern tree
c_fully_fold (tree
, bool, bool *);
830 extern tree
c_wrap_maybe_const (tree
, bool);
831 extern tree
c_save_expr (tree
);
832 extern tree
c_common_truthvalue_conversion (location_t
, tree
);
833 extern void c_apply_type_quals_to_decl (int, tree
);
834 extern tree
c_sizeof_or_alignof_type (location_t
, tree
, bool, bool, int);
835 extern tree
c_alignof_expr (location_t
, tree
);
836 /* Print an error message for invalid operands to arith operation CODE.
837 NOP_EXPR is used as a special case (see truthvalue_conversion). */
838 extern void binary_op_error (rich_location
*, enum tree_code
, tree
, tree
);
839 extern tree
fix_string_type (tree
);
840 extern void constant_expression_warning (tree
);
841 extern void constant_expression_error (tree
);
842 extern bool strict_aliasing_warning (tree
, tree
, tree
);
843 extern void sizeof_pointer_memaccess_warning (location_t
*, tree
,
844 vec
<tree
, va_gc
> *, tree
*,
845 bool (*) (tree
, tree
));
846 extern void warnings_for_convert_and_check (location_t
, tree
, tree
, tree
);
847 extern tree
convert_and_check (location_t
, tree
, tree
);
848 extern void overflow_warning (location_t
, tree
);
849 extern bool warn_if_unused_value (const_tree
, location_t
);
850 extern void warn_logical_operator (location_t
, enum tree_code
, tree
,
851 enum tree_code
, tree
, enum tree_code
, tree
);
852 extern void warn_logical_not_parentheses (location_t
, enum tree_code
, tree
,
854 extern void warn_tautological_cmp (location_t
, enum tree_code
, tree
, tree
);
855 extern void check_main_parameter_types (tree decl
);
856 extern bool c_determine_visibility (tree
);
857 extern bool vector_types_compatible_elements_p (tree
, tree
);
858 extern void mark_valid_location_for_stdc_pragma (bool);
859 extern bool valid_location_for_stdc_pragma_p (void);
860 extern void set_float_const_decimal64 (void);
861 extern void clear_float_const_decimal64 (void);
862 extern bool float_const_decimal64_p (void);
864 extern bool keyword_begins_type_specifier (enum rid
);
865 extern bool keyword_is_storage_class_specifier (enum rid
);
866 extern bool keyword_is_type_qualifier (enum rid
);
867 extern bool keyword_is_decl_specifier (enum rid
);
868 extern unsigned max_align_t_align (void);
869 extern bool cxx_fundamental_alignment_p (unsigned);
870 extern bool pointer_to_zero_sized_aggr_p (tree
);
871 extern bool diagnose_mismatched_attributes (tree
, tree
);
873 #define c_sizeof(LOC, T) c_sizeof_or_alignof_type (LOC, T, true, false, 1)
874 #define c_alignof(LOC, T) c_sizeof_or_alignof_type (LOC, T, false, false, 1)
876 /* Subroutine of build_binary_op, used for certain operations. */
877 extern tree
shorten_binary_op (tree result_type
, tree op0
, tree op1
, bool bitwise
);
879 /* Subroutine of build_binary_op, used for comparison operations.
880 See if the operands have both been converted from subword integer types
881 and, if so, perhaps change them both back to their original type. */
882 extern tree
shorten_compare (location_t
, tree
*, tree
*, tree
*,
885 extern tree
pointer_int_sum (location_t
, enum tree_code
, tree
, tree
,
888 /* Add qualifiers to a type, in the fashion for C. */
889 extern tree
c_build_qualified_type (tree
, int, tree
= NULL_TREE
, size_t = 0);
891 /* Build tree nodes and builtin functions common to both C and C++ language
893 extern void c_common_nodes_and_builtins (void);
895 extern void disable_builtin_function (const char *);
897 extern void set_compound_literal_name (tree decl
);
899 extern tree
build_va_arg (location_t
, tree
, tree
);
901 extern const unsigned int c_family_lang_mask
;
902 extern unsigned int c_common_option_lang_mask (void);
903 extern void c_common_diagnostics_set_defaults (diagnostic_context
*);
904 extern bool c_common_complain_wrong_lang_p (const struct cl_option
*);
905 extern void c_common_init_options_struct (struct gcc_options
*);
906 extern void c_common_init_options (unsigned int, struct cl_decoded_option
*);
907 extern bool c_common_post_options (const char **);
908 extern bool c_common_init (void);
909 extern void c_common_finish (void);
910 extern void c_common_parse_file (void);
911 extern FILE *get_dump_info (int, int *);
912 extern alias_set_type
c_common_get_alias_set (tree
);
913 extern void c_register_builtin_type (tree
, const char*);
914 extern bool c_promoting_integer_type_p (const_tree
);
915 extern int self_promoting_args_p (const_tree
);
916 extern tree
strip_pointer_operator (tree
);
917 extern tree
strip_pointer_or_array_types (tree
);
918 extern HOST_WIDE_INT
c_common_to_target_charset (HOST_WIDE_INT
);
920 /* This is the basic parsing function. */
921 extern void c_parse_file (void);
923 extern void c_parse_final_cleanups (void);
925 extern void warn_for_omitted_condop (location_t
, tree
);
926 extern void warn_for_memset (location_t
, tree
, tree
, int);
928 /* These macros provide convenient access to the various _STMT nodes. */
930 /* Nonzero if a given STATEMENT_LIST represents the outermost binding
931 if a statement expression. */
932 #define STATEMENT_LIST_STMT_EXPR(NODE) \
933 TREE_LANG_FLAG_1 (STATEMENT_LIST_CHECK (NODE))
935 /* Nonzero if a label has been added to the statement list. */
936 #define STATEMENT_LIST_HAS_LABEL(NODE) \
937 TREE_LANG_FLAG_3 (STATEMENT_LIST_CHECK (NODE))
939 /* C_MAYBE_CONST_EXPR accessors. */
940 #define C_MAYBE_CONST_EXPR_PRE(NODE) \
941 TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 0)
942 #define C_MAYBE_CONST_EXPR_EXPR(NODE) \
943 TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 1)
944 #define C_MAYBE_CONST_EXPR_INT_OPERANDS(NODE) \
945 TREE_LANG_FLAG_0 (C_MAYBE_CONST_EXPR_CHECK (NODE))
946 #define C_MAYBE_CONST_EXPR_NON_CONST(NODE) \
947 TREE_LANG_FLAG_1 (C_MAYBE_CONST_EXPR_CHECK (NODE))
948 #define EXPR_INT_CONST_OPERANDS(EXPR) \
949 (INTEGRAL_TYPE_P (TREE_TYPE (EXPR)) \
950 && (TREE_CODE (EXPR) == INTEGER_CST \
951 || (TREE_CODE (EXPR) == C_MAYBE_CONST_EXPR \
952 && C_MAYBE_CONST_EXPR_INT_OPERANDS (EXPR))))
954 /* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */
955 #define DECL_C_BIT_FIELD(NODE) \
956 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1)
957 #define SET_DECL_C_BIT_FIELD(NODE) \
958 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 1)
959 #define CLEAR_DECL_C_BIT_FIELD(NODE) \
960 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0)
962 extern tree
do_case (location_t
, tree
, tree
);
963 extern tree
build_stmt (location_t
, enum tree_code
, ...);
964 extern tree
build_real_imag_expr (location_t
, enum tree_code
, tree
);
966 /* These functions must be defined by each front-end which implements
967 a variant of the C language. They are used in c-common.c. */
969 extern tree
build_unary_op (location_t
, enum tree_code
, tree
, bool);
970 extern tree
build_binary_op (location_t
, enum tree_code
, tree
, tree
, int);
971 extern tree
perform_integral_promotions (tree
);
973 /* These functions must be defined by each front-end which implements
974 a variant of the C language. They are used by port files. */
976 extern tree
default_conversion (tree
);
978 /* Given two integer or real types, return the type for their sum.
979 Given two compatible ANSI C types, returns the merged type. */
981 extern tree
common_type (tree
, tree
);
983 extern tree
decl_constant_value (tree
);
985 /* Handle increment and decrement of boolean types. */
986 extern tree
boolean_increment (enum tree_code
, tree
);
988 extern int case_compare (splay_tree_key
, splay_tree_key
);
990 extern tree
c_add_case_label (location_t
, splay_tree
, tree
, tree
, tree
, tree
,
993 extern void c_do_switch_warnings (splay_tree
, location_t
, tree
, tree
, bool,
996 extern tree
build_function_call (location_t
, tree
, tree
);
998 extern tree
build_function_call_vec (location_t
, vec
<location_t
>, tree
,
999 vec
<tree
, va_gc
> *, vec
<tree
, va_gc
> *);
1001 extern tree
resolve_overloaded_builtin (location_t
, tree
, vec
<tree
, va_gc
> *);
1003 extern tree
finish_label_address_expr (tree
, location_t
);
1005 /* Same function prototype, but the C and C++ front ends have
1006 different implementations. Used in c-common.c. */
1007 extern tree
lookup_label (tree
);
1008 extern tree
lookup_name (tree
);
1009 extern bool lvalue_p (const_tree
);
1011 enum lookup_name_fuzzy_kind
{
1012 /* Names of types. */
1013 FUZZY_LOOKUP_TYPENAME
,
1015 /* Names of function decls. */
1016 FUZZY_LOOKUP_FUNCTION_NAME
,
1021 extern const char *lookup_name_fuzzy (tree
, enum lookup_name_fuzzy_kind
);
1023 extern bool vector_targets_convertible_p (const_tree t1
, const_tree t2
);
1024 extern bool vector_types_convertible_p (const_tree t1
, const_tree t2
, bool emit_lax_note
);
1025 extern tree
c_build_vec_perm_expr (location_t
, tree
, tree
, tree
, bool = true);
1027 extern void init_c_lex (void);
1029 extern void c_cpp_builtins (cpp_reader
*);
1030 extern void c_cpp_builtins_optimize_pragma (cpp_reader
*, tree
, tree
);
1031 extern bool c_cpp_error (cpp_reader
*, int, int, rich_location
*,
1032 const char *, va_list *)
1033 ATTRIBUTE_GCC_DIAG(5,0);
1034 extern int c_common_has_attribute (cpp_reader
*);
1036 extern bool parse_optimize_options (tree
, bool);
1038 /* Positive if an implicit `extern "C"' scope has just been entered;
1039 negative if such a scope has just been exited. */
1040 extern GTY(()) int pending_lang_change
;
1042 /* Information recorded about each file examined during compilation. */
1046 int time
; /* Time spent in the file. */
1048 /* Flags used only by C++.
1049 INTERFACE_ONLY nonzero means that we are in an "interface" section
1050 of the compiler. INTERFACE_UNKNOWN nonzero means we cannot trust
1051 the value of INTERFACE_ONLY. If INTERFACE_UNKNOWN is zero and
1052 INTERFACE_ONLY is zero, it means that we are responsible for
1053 exporting definitions that others might need. */
1054 short interface_only
;
1055 short interface_unknown
;
1058 struct c_fileinfo
*get_fileinfo (const char *);
1059 extern void dump_time_statistics (void);
1061 extern bool c_dump_tree (void *, tree
);
1063 extern void verify_sequence_points (tree
);
1065 extern tree
fold_offsetof_1 (tree
, tree_code ctx
= ERROR_MARK
);
1066 extern tree
fold_offsetof (tree
);
1068 /* Places where an lvalue, or modifiable lvalue, may be required.
1069 Used to select diagnostic messages in lvalue_error and
1079 extern void readonly_error (location_t
, tree
, enum lvalue_use
);
1080 extern void lvalue_error (location_t
, enum lvalue_use
);
1081 extern void invalid_indirection_error (location_t
, tree
, ref_operator
);
1083 extern int complete_array_type (tree
*, tree
, bool);
1085 extern tree
builtin_type_for_size (int, bool);
1087 extern void c_common_mark_addressable_vec (tree
);
1089 extern void warn_array_subscript_with_type_char (location_t
, tree
);
1090 extern void warn_about_parentheses (location_t
,
1092 enum tree_code
, tree
,
1093 enum tree_code
, tree
);
1094 extern void warn_for_unused_label (tree label
);
1095 extern void warn_for_div_by_zero (location_t
, tree divisor
);
1096 extern void warn_for_sign_compare (location_t
,
1097 tree orig_op0
, tree orig_op1
,
1100 enum tree_code resultcode
);
1101 extern void do_warn_unused_parameter (tree
);
1102 extern void do_warn_double_promotion (tree
, tree
, tree
, const char *,
1104 extern void set_underlying_type (tree
);
1105 extern void record_types_used_by_current_var_decl (tree
);
1106 extern void record_locally_defined_typedef (tree
);
1107 extern void maybe_record_typedef_use (tree
);
1108 extern void maybe_warn_unused_local_typedefs (void);
1109 extern void maybe_warn_bool_compare (location_t
, enum tree_code
, tree
, tree
);
1110 extern bool maybe_warn_shift_overflow (location_t
, tree
, tree
);
1111 extern vec
<tree
, va_gc
> *make_tree_vector (void);
1112 extern void release_tree_vector (vec
<tree
, va_gc
> *);
1113 extern vec
<tree
, va_gc
> *make_tree_vector_single (tree
);
1114 extern vec
<tree
, va_gc
> *make_tree_vector_from_list (tree
);
1115 extern vec
<tree
, va_gc
> *make_tree_vector_from_ctor (tree
);
1116 extern vec
<tree
, va_gc
> *make_tree_vector_copy (const vec
<tree
, va_gc
> *);
1118 /* Used for communication between c_common_type_for_mode and
1119 c_register_builtin_type. */
1120 extern GTY(()) tree registered_builtin_types
;
1122 /* Read SOURCE_DATE_EPOCH from environment to have a deterministic
1123 timestamp to replace embedded current dates to get reproducible
1124 results. Returns -1 if SOURCE_DATE_EPOCH is not defined. */
1125 extern time_t cb_get_source_date_epoch (cpp_reader
*pfile
);
1127 /* The value (as a unix timestamp) corresponds to date
1128 "Dec 31 9999 23:59:59 UTC", which is the latest date that __DATE__ and
1129 __TIME__ can store. */
1130 #define MAX_SOURCE_DATE_EPOCH HOST_WIDE_INT_C (253402300799)
1132 /* Callback for libcpp for offering spelling suggestions for misspelled
1134 extern const char *cb_get_suggestion (cpp_reader
*, const char *,
1135 const char *const *);
1137 extern GTY(()) string_concat_db
*g_string_concat_db
;
1139 class substring_loc
;
1140 extern const char *c_get_substring_location (const substring_loc
&substr_loc
,
1141 location_t
*out_loc
);
1143 /* In c-gimplify.c */
1144 extern void c_genericize (tree
);
1145 extern int c_gimplify_expr (tree
*, gimple_seq
*, gimple_seq
*);
1146 extern tree
c_build_bind_expr (location_t
, tree
, tree
);
1149 extern enum cpp_ttype
1150 conflict_marker_get_final_tok_kind (enum cpp_ttype tok1_kind
);
1153 extern void pch_init (void);
1154 extern void pch_cpp_save_state (void);
1155 extern int c_common_valid_pch (cpp_reader
*pfile
, const char *name
, int fd
);
1156 extern void c_common_read_pch (cpp_reader
*pfile
, const char *name
, int fd
,
1158 extern void c_common_write_pch (void);
1159 extern void c_common_no_more_pch (void);
1160 extern void c_common_pch_pragma (cpp_reader
*pfile
, const char *);
1162 /* In *-checksum.c */
1163 extern const unsigned char executable_checksum
[16];
1165 /* In c-cppbuiltin.c */
1166 extern void builtin_define_std (const char *macro
);
1167 extern void builtin_define_with_value (const char *, const char *, int);
1168 extern void builtin_define_with_int_value (const char *, HOST_WIDE_INT
);
1169 extern void builtin_define_type_sizeof (const char *, tree
);
1170 extern void c_stddef_cpp_builtins (void);
1171 extern void fe_file_change (const line_map_ordinary
*);
1172 extern void c_parse_error (const char *, enum cpp_ttype
, tree
, unsigned char);
1174 /* In c-ppoutput.c */
1175 extern void init_pp_output (FILE *);
1176 extern void preprocess_file (cpp_reader
*);
1177 extern void pp_file_change (const line_map_ordinary
*);
1178 extern void pp_dir_change (cpp_reader
*, const char *);
1179 extern bool check_missing_format_attribute (tree
, tree
);
1182 struct omp_clause_mask
1184 inline omp_clause_mask ();
1185 inline omp_clause_mask (uint64_t l
);
1186 inline omp_clause_mask (uint64_t l
, uint64_t h
);
1187 inline omp_clause_mask
&operator &= (omp_clause_mask
);
1188 inline omp_clause_mask
&operator |= (omp_clause_mask
);
1189 inline omp_clause_mask
operator ~ () const;
1190 inline omp_clause_mask
operator & (omp_clause_mask
) const;
1191 inline omp_clause_mask
operator | (omp_clause_mask
) const;
1192 inline omp_clause_mask
operator >> (int);
1193 inline omp_clause_mask
operator << (int);
1194 inline bool operator == (omp_clause_mask
) const;
1195 inline bool operator != (omp_clause_mask
) const;
1200 omp_clause_mask::omp_clause_mask ()
1205 omp_clause_mask::omp_clause_mask (uint64_t l
)
1211 omp_clause_mask::omp_clause_mask (uint64_t l
, uint64_t h
)
1216 inline omp_clause_mask
&
1217 omp_clause_mask::operator &= (omp_clause_mask b
)
1224 inline omp_clause_mask
&
1225 omp_clause_mask::operator |= (omp_clause_mask b
)
1232 inline omp_clause_mask
1233 omp_clause_mask::operator ~ () const
1235 omp_clause_mask
ret (~low
, ~high
);
1239 inline omp_clause_mask
1240 omp_clause_mask::operator | (omp_clause_mask b
) const
1242 omp_clause_mask
ret (low
| b
.low
, high
| b
.high
);
1246 inline omp_clause_mask
1247 omp_clause_mask::operator & (omp_clause_mask b
) const
1249 omp_clause_mask
ret (low
& b
.low
, high
& b
.high
);
1253 inline omp_clause_mask
1254 omp_clause_mask::operator << (int amount
)
1256 omp_clause_mask ret
;
1260 ret
.high
= low
<< (amount
- 64);
1262 else if (amount
== 0)
1266 ret
.low
= low
<< amount
;
1267 ret
.high
= (low
>> (64 - amount
)) | (high
<< amount
);
1272 inline omp_clause_mask
1273 omp_clause_mask::operator >> (int amount
)
1275 omp_clause_mask ret
;
1278 ret
.low
= high
>> (amount
- 64);
1281 else if (amount
== 0)
1285 ret
.low
= (high
<< (64 - amount
)) | (low
>> amount
);
1286 ret
.high
= high
>> amount
;
1292 omp_clause_mask::operator == (omp_clause_mask b
) const
1294 return low
== b
.low
&& high
== b
.high
;
1298 omp_clause_mask::operator != (omp_clause_mask b
) const
1300 return low
!= b
.low
|| high
!= b
.high
;
1303 #define OMP_CLAUSE_MASK_1 omp_clause_mask (1)
1305 enum c_omp_clause_split
1307 C_OMP_CLAUSE_SPLIT_TARGET
= 0,
1308 C_OMP_CLAUSE_SPLIT_TEAMS
,
1309 C_OMP_CLAUSE_SPLIT_DISTRIBUTE
,
1310 C_OMP_CLAUSE_SPLIT_PARALLEL
,
1311 C_OMP_CLAUSE_SPLIT_FOR
,
1312 C_OMP_CLAUSE_SPLIT_SIMD
,
1313 C_OMP_CLAUSE_SPLIT_COUNT
,
1314 C_OMP_CLAUSE_SPLIT_SECTIONS
= C_OMP_CLAUSE_SPLIT_FOR
,
1315 C_OMP_CLAUSE_SPLIT_TASKLOOP
= C_OMP_CLAUSE_SPLIT_FOR
1318 enum c_omp_region_type
1321 C_ORT_CILK
= 1 << 1,
1323 C_ORT_DECLARE_SIMD
= 1 << 3,
1324 C_ORT_OMP_DECLARE_SIMD
= C_ORT_OMP
| C_ORT_DECLARE_SIMD
1327 extern tree
c_finish_omp_master (location_t
, tree
);
1328 extern tree
c_finish_omp_taskgroup (location_t
, tree
);
1329 extern tree
c_finish_omp_critical (location_t
, tree
, tree
, tree
);
1330 extern tree
c_finish_omp_ordered (location_t
, tree
, tree
);
1331 extern void c_finish_omp_barrier (location_t
);
1332 extern tree
c_finish_omp_atomic (location_t
, enum tree_code
, enum tree_code
,
1333 tree
, tree
, tree
, tree
, tree
, bool, bool,
1335 extern void c_finish_omp_flush (location_t
);
1336 extern void c_finish_omp_taskwait (location_t
);
1337 extern void c_finish_omp_taskyield (location_t
);
1338 extern tree
c_finish_omp_for (location_t
, enum tree_code
, tree
, tree
, tree
,
1339 tree
, tree
, tree
, tree
);
1340 extern bool c_omp_check_loop_iv (tree
, tree
, walk_tree_lh
);
1341 extern bool c_omp_check_loop_iv_exprs (location_t
, tree
, tree
, tree
, tree
,
1343 extern tree
c_finish_oacc_wait (location_t
, tree
, tree
);
1344 extern tree
c_oacc_split_loop_clauses (tree
, tree
*, bool);
1345 extern void c_omp_split_clauses (location_t
, enum tree_code
, omp_clause_mask
,
1347 extern tree
c_omp_declare_simd_clauses_to_numbers (tree
, tree
);
1348 extern void c_omp_declare_simd_clauses_to_decls (tree
, tree
);
1349 extern enum omp_clause_default_kind
c_omp_predetermined_sharing (tree
);
1351 /* Return next tree in the chain for chain_next walking of tree nodes. */
1353 c_tree_chain_next (tree t
)
1355 /* TREE_CHAIN of a type is TYPE_STUB_DECL, which is different
1356 kind of object, never a long chain of nodes. Prefer
1357 TYPE_NEXT_VARIANT for types. */
1358 if (CODE_CONTAINS_STRUCT (TREE_CODE (t
), TS_TYPE_COMMON
))
1359 return TYPE_NEXT_VARIANT (t
);
1360 /* Otherwise, if there is TREE_CHAIN, return it. */
1361 if (CODE_CONTAINS_STRUCT (TREE_CODE (t
), TS_COMMON
))
1362 return TREE_CHAIN (t
);
1366 /* Mask used by tm_stmt_attr. */
1367 #define TM_STMT_ATTR_OUTER 2
1368 #define TM_STMT_ATTR_ATOMIC 4
1369 #define TM_STMT_ATTR_RELAXED 8
1371 extern int parse_tm_stmt_attr (tree
, int);
1373 /* Mask used by tm_attr_to_mask and tm_mask_to_attr. Note that these
1374 are ordered specifically such that more restrictive attributes are
1375 at lower bit positions. This fact is known by the C++ tm attribute
1376 inheritance code such that least bit extraction (mask & -mask) results
1377 in the most restrictive attribute. */
1378 #define TM_ATTR_SAFE 1
1379 #define TM_ATTR_CALLABLE 2
1380 #define TM_ATTR_PURE 4
1381 #define TM_ATTR_IRREVOCABLE 8
1382 #define TM_ATTR_MAY_CANCEL_OUTER 16
1384 extern int tm_attr_to_mask (tree
);
1385 extern tree
tm_mask_to_attr (int);
1386 extern tree
find_tm_attribute (tree
);
1388 /* A suffix-identifier value doublet that represents user-defined literals
1390 enum overflow_type
{
1396 struct GTY(()) tree_userdef_literal
{
1397 struct tree_base base
;
1401 enum overflow_type overflow
;
1404 #define USERDEF_LITERAL_SUFFIX_ID(NODE) \
1405 (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->suffix_id)
1407 #define USERDEF_LITERAL_VALUE(NODE) \
1408 (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->value)
1410 #define USERDEF_LITERAL_OVERFLOW(NODE) \
1411 (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->overflow)
1413 #define USERDEF_LITERAL_NUM_STRING(NODE) \
1414 (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->num_string)
1416 #define USERDEF_LITERAL_TYPE(NODE) \
1417 (TREE_TYPE (USERDEF_LITERAL_VALUE (NODE)))
1419 extern tree
build_userdef_literal (tree suffix_id
, tree value
,
1420 enum overflow_type overflow
,
1423 extern bool convert_vector_to_array_for_subscript (location_t
, tree
*, tree
);
1425 /* Possibe cases of scalar_to_vector conversion. */
1427 stv_error
, /* Error occurred. */
1428 stv_nothing
, /* Nothing happened. */
1429 stv_firstarg
, /* First argument must be expanded. */
1430 stv_secondarg
/* Second argument must be expanded. */
1433 extern enum stv_conv
scalar_to_vector (location_t loc
, enum tree_code code
,
1434 tree op0
, tree op1
, bool);
1436 /* In c-cilkplus.c */
1437 extern tree
c_validate_cilk_plus_loop (tree
*, int *, void *);
1438 extern bool c_check_cilk_loop (location_t
, tree
);
1440 /* These #defines allow users to access different operands of the
1441 array notation tree. */
1443 #define ARRAY_NOTATION_CHECK(NODE) TREE_CHECK (NODE, ARRAY_NOTATION_REF)
1444 #define ARRAY_NOTATION_ARRAY(NODE) \
1445 TREE_OPERAND (ARRAY_NOTATION_CHECK (NODE), 0)
1446 #define ARRAY_NOTATION_START(NODE) \
1447 TREE_OPERAND (ARRAY_NOTATION_CHECK (NODE), 1)
1448 #define ARRAY_NOTATION_LENGTH(NODE) \
1449 TREE_OPERAND (ARRAY_NOTATION_CHECK (NODE), 2)
1450 #define ARRAY_NOTATION_STRIDE(NODE) \
1451 TREE_OPERAND (ARRAY_NOTATION_CHECK (NODE), 3)
1453 /* This structure holds all the scalar values and its appropriate variable
1454 replacment. It is mainly used by the function that pulls all the invariant
1455 parts that should be executed only once, which comes with array notation
1459 vec
<tree
, va_gc
> *list_values
;
1460 vec
<tree
, va_gc
> *replacement
;
1461 vec
<enum tree_code
, va_gc
> *additional_tcodes
;
1464 /* This structure holds all the important components that can be extracted
1465 from an ARRAY_NOTATION_REF expression. It is used to pass array notation
1466 information between the functions that are responsible for expansion. */
1467 typedef struct cilkplus_an_parts
1476 /* This structure holds the components necessary to create the loop around
1477 the ARRAY_REF that is created using the ARRAY_NOTATION information. */
1479 typedef struct cilkplus_an_loop_parts
1481 tree var
; /* Loop induction variable. */
1482 tree incr
; /* Loop increment/decrement expression. */
1483 tree cmp
; /* Loop condition. */
1484 tree ind_init
; /* Initialization of the loop induction variable. */
1487 /* In array-notation-common.c. */
1488 extern HOST_WIDE_INT
extract_sec_implicit_index_arg (location_t
, tree
);
1489 extern bool is_sec_implicit_index_fn (tree
);
1490 extern void array_notation_init_builtins (void);
1491 extern struct c_expr
fix_array_notation_expr (location_t
, enum tree_code
,
1493 extern bool contains_array_notation_expr (tree
);
1494 extern tree
expand_array_notation_exprs (tree
);
1495 extern tree
fix_conditional_array_notations (tree
);
1496 extern tree
find_correct_array_notation_type (tree
);
1497 extern bool length_mismatch_in_expr_p (location_t
, vec
<vec
<an_parts
> >);
1498 extern enum built_in_function
is_cilkplus_reduce_builtin (tree
);
1499 extern bool find_rank (location_t
, tree
, tree
, bool, size_t *);
1500 extern void extract_array_notation_exprs (tree
, bool, vec
<tree
, va_gc
> **);
1501 extern void replace_array_notations (tree
*, bool, vec
<tree
, va_gc
> *,
1502 vec
<tree
, va_gc
> *);
1503 extern tree
find_inv_trees (tree
*, int *, void *);
1504 extern tree
replace_inv_trees (tree
*, int *, void *);
1505 extern tree
find_correct_array_notation_type (tree op
);
1506 extern void cilkplus_extract_an_triplets (vec
<tree
, va_gc
> *, size_t, size_t,
1507 vec
<vec
<an_parts
> > *);
1508 extern vec
<tree
, va_gc
> *fix_sec_implicit_args
1509 (location_t
, vec
<tree
, va_gc
> *, vec
<an_loop_parts
>, size_t, tree
);
1510 extern bool is_cilkplus_vector_p (tree
);
1513 extern tree
insert_cilk_frame (tree
);
1514 extern void cilk_init_builtins (void);
1515 extern int gimplify_cilk_spawn (tree
*);
1516 extern void cilk_gimplify_call_params_in_spawned_fn (tree
*, gimple_seq
*);
1517 extern void cilk_install_body_with_frame_cleanup (tree
, tree
, void *);
1518 extern bool cilk_detect_spawn_and_unwrap (tree
*);
1519 extern bool cilk_set_spawn_marker (location_t
, tree
);
1520 extern tree
build_cilk_sync (void);
1521 extern tree
build_cilk_spawn (location_t
, tree
);
1522 extern tree
make_cilk_frame (tree
);
1523 extern tree
create_cilk_function_exit (tree
, bool, bool);
1524 extern tree
cilk_install_body_pedigree_operations (tree
);
1525 extern void cilk_outline (tree
, tree
*, void *);
1526 extern bool contains_cilk_spawn_stmt (tree
);
1527 extern tree
cilk_for_number_of_iterations (tree
);
1528 extern bool check_no_cilk (tree
, const char *, const char *,
1529 location_t loc
= UNKNOWN_LOCATION
);
1530 extern bool reject_gcc_builtin (const_tree
, location_t
= UNKNOWN_LOCATION
);
1531 extern void warn_duplicated_cond_add_or_warn (location_t
, tree
, vec
<tree
> **);
1532 extern bool valid_array_size_p (location_t
, tree
, tree
);
1534 extern bool cilk_ignorable_spawn_rhs_op (tree
);
1535 extern bool cilk_recognize_spawn (tree
, tree
*);
1538 namespace selftest
{
1539 extern void c_format_c_tests (void);
1540 extern void run_c_tests (void);
1541 } // namespace selftest
1542 #endif /* #if CHECKING_P */
1544 #endif /* ! GCC_C_COMMON_H */