1 /* Definitions for c-common.c.
2 Copyright (C) 1987-2015 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"
30 #include "statistics.h"
32 #include "double-int.h"
34 #include "fixed-value.h"
41 #include "fold-const.h"
43 /* In order for the format checking to accept the C frontend
44 diagnostic framework extensions, you must include this file before
45 diagnostic-core.h, not after. The C front end formats are a subset of those
46 for C++, so they are the appropriate set to use in common code;
47 cp-tree.h overrides this for C++. */
48 #if defined(GCC_DIAGNOSTIC_CORE_H)
50 In order for the format checking to accept the C front end diagnostic \
51 framework extensions, you must include this file before diagnostic-core.h \
54 #ifndef GCC_DIAG_STYLE
55 #define GCC_DIAG_STYLE __gcc_cdiag__
57 #include "diagnostic-core.h"
59 /* Usage of TREE_LANG_FLAG_?:
60 0: IDENTIFIER_MARKED (used by search routines).
61 C_MAYBE_CONST_EXPR_INT_OPERANDS (in C_MAYBE_CONST_EXPR, for C)
62 1: C_DECLARED_LABEL_FLAG (in LABEL_DECL)
63 STATEMENT_LIST_STMT_EXPR (in STATEMENT_LIST)
64 C_MAYBE_CONST_EXPR_NON_CONST (in C_MAYBE_CONST_EXPR, for C)
66 3: STATEMENT_LIST_HAS_LABEL (in STATEMENT_LIST)
70 /* Reserved identifiers. This is the union of all the keywords for C,
71 C++, and Objective-C. All the type modifiers have to be in one
72 block at the beginning, because they are used as mask bits. There
73 are 28 type modifiers; if we add many more we will have to redesign
74 the mask mechanism. */
79 /* C, in empirical order of frequency. */
81 RID_UNSIGNED, RID_LONG, RID_CONST, RID_EXTERN,
82 RID_REGISTER, RID_TYPEDEF, RID_SHORT, RID_INLINE,
83 RID_VOLATILE, RID_SIGNED, RID_AUTO, RID_RESTRICT,
84 RID_NORETURN, RID_ATOMIC,
87 RID_COMPLEX, RID_THREAD, RID_SAT,
90 RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE,
92 /* ObjC ("PQ" reserved words - they do not appear after a '@' and
93 are keywords only in specific contexts) */
94 RID_IN, RID_OUT, RID_INOUT, RID_BYCOPY, RID_BYREF, RID_ONEWAY,
96 /* ObjC ("PATTR" reserved words - they do not appear after a '@'
97 and are keywords only as property attributes) */
98 RID_GETTER, RID_SETTER,
99 RID_READONLY, RID_READWRITE,
100 RID_ASSIGN, RID_RETAIN, RID_COPY,
103 /* C (reserved and imaginary types not implemented, so any use is a
108 RID_INT, RID_CHAR, RID_FLOAT, RID_DOUBLE, RID_VOID,
109 RID_ENUM, RID_STRUCT, RID_UNION, RID_IF, RID_ELSE,
110 RID_WHILE, RID_DO, RID_FOR, RID_SWITCH, RID_CASE,
111 RID_DEFAULT, RID_BREAK, RID_CONTINUE, RID_RETURN, RID_GOTO,
115 RID_ASM, RID_TYPEOF, RID_ALIGNOF, RID_ATTRIBUTE, RID_VA_ARG,
116 RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_CHOOSE_EXPR,
117 RID_TYPES_COMPATIBLE_P, RID_BUILTIN_COMPLEX, RID_BUILTIN_SHUFFLE,
118 RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128,
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_VIRTUAL_DESTRUCTOR,
154 RID_IS_ABSTRACT, RID_IS_BASE_OF,
156 RID_IS_EMPTY, RID_IS_ENUM,
157 RID_IS_FINAL, RID_IS_LITERAL_TYPE,
158 RID_IS_POD, RID_IS_POLYMORPHIC,
159 RID_IS_STD_LAYOUT, RID_IS_TRIVIAL,
160 RID_IS_TRIVIALLY_ASSIGNABLE, RID_IS_TRIVIALLY_CONSTRUCTIBLE,
161 RID_IS_TRIVIALLY_COPYABLE,
162 RID_IS_UNION, RID_UNDERLYING_TYPE,
165 RID_CONSTEXPR, RID_DECLTYPE, RID_NOEXCEPT, RID_NULLPTR, RID_STATIC_ASSERT,
167 /* Cilk Plus keywords. */
168 RID_CILK_SPAWN, RID_CILK_SYNC, RID_CILK_FOR,
170 /* Objective-C ("AT" reserved words - they are only keywords when
172 RID_AT_ENCODE, RID_AT_END,
173 RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS,
174 RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC, RID_AT_PACKAGE,
175 RID_AT_PROTOCOL, RID_AT_SELECTOR,
176 RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH,
177 RID_AT_FINALLY, RID_AT_SYNCHRONIZED,
178 RID_AT_OPTIONAL, RID_AT_REQUIRED, RID_AT_PROPERTY,
179 RID_AT_SYNTHESIZE, RID_AT_DYNAMIC,
181 RID_AT_IMPLEMENTATION,
183 /* Named address support, mapping the keyword to a particular named address
184 number. Named address space 0 is reserved for the generic address. If
185 there are more than 254 named addresses, the addr_space_t type will need
186 to be grown from an unsigned char to unsigned short. */
187 RID_ADDR_SPACE_0, /* generic address */
204 RID_FIRST_ADDR_SPACE = RID_ADDR_SPACE_0,
205 RID_LAST_ADDR_SPACE = RID_ADDR_SPACE_15,
207 /* __intN keywords. The _N_M here doesn't correspond to the intN
208 in the keyword; use the bitsize in int_n_t_data_t[M] for that.
209 For example, if int_n_t_data_t[0].bitsize is 13, then RID_INT_N_0
212 /* Note that the range to use is RID_FIRST_INT_N through
213 RID_FIRST_INT_N + NUM_INT_N_ENTS - 1 and c-parser.c has a list of
214 all RID_INT_N_* in a case statement. */
221 RID_FIRST_INT_N = RID_INT_N_0,
222 RID_LAST_INT_N = RID_INT_N_3,
226 RID_FIRST_MODIFIER = RID_STATIC,
227 RID_LAST_MODIFIER = RID_ONEWAY,
229 RID_FIRST_CXX0X = RID_CONSTEXPR,
230 RID_LAST_CXX0X = RID_STATIC_ASSERT,
231 RID_FIRST_AT = RID_AT_ENCODE,
232 RID_LAST_AT = RID_AT_IMPLEMENTATION,
233 RID_FIRST_PQ = RID_IN,
234 RID_LAST_PQ = RID_ONEWAY,
235 RID_FIRST_PATTR = RID_GETTER,
236 RID_LAST_PATTR = RID_NONATOMIC
239 #define OBJC_IS_AT_KEYWORD(rid) \
240 ((unsigned int) (rid) >= (unsigned int) RID_FIRST_AT && \
241 (unsigned int) (rid) <= (unsigned int) RID_LAST_AT)
243 #define OBJC_IS_PQ_KEYWORD(rid) \
244 ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PQ && \
245 (unsigned int) (rid) <= (unsigned int) RID_LAST_PQ)
247 #define OBJC_IS_PATTR_KEYWORD(rid) \
248 ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PATTR && \
249 (unsigned int) (rid) <= (unsigned int) RID_LAST_PATTR)
251 /* OBJC_IS_CXX_KEYWORD recognizes the 'CXX_OBJC' keywords (such as
252 'class') which are shared in a subtle way between Objective-C and
253 C++. When the lexer is lexing in Objective-C/Objective-C++, if it
254 finds '@' followed by one of these identifiers (eg, '@class'), it
255 recognizes the whole as an Objective-C keyword. If the identifier
256 is found elsewhere, it follows the rules of the C/C++ language.
258 #define OBJC_IS_CXX_KEYWORD(rid) \
260 || rid == RID_PUBLIC || rid == RID_PROTECTED || rid == RID_PRIVATE \
261 || rid == RID_TRY || rid == RID_THROW || rid == RID_CATCH)
263 /* The elements of `ridpointers' are identifier nodes for the reserved
264 type names and storage classes. It is indexed by a RID_... value. */
265 extern GTY ((length ("(int) RID_MAX"))) tree *ridpointers;
267 /* Standard named or nameless data types of the C compiler. */
274 CTI_UNDERLYING_WCHAR_TYPE,
276 CTI_SIGNED_SIZE_TYPE, /* For format checking only. */
277 CTI_UNSIGNED_PTRDIFF_TYPE, /* For format checking only. */
280 CTI_WIDEST_INT_LIT_TYPE,
281 CTI_WIDEST_UINT_LIT_TYPE,
283 /* Types for <stdint.h>, that may not be defined on all
295 CTI_INT_LEAST16_TYPE,
296 CTI_INT_LEAST32_TYPE,
297 CTI_INT_LEAST64_TYPE,
298 CTI_UINT_LEAST8_TYPE,
299 CTI_UINT_LEAST16_TYPE,
300 CTI_UINT_LEAST32_TYPE,
301 CTI_UINT_LEAST64_TYPE,
307 CTI_UINT_FAST16_TYPE,
308 CTI_UINT_FAST32_TYPE,
309 CTI_UINT_FAST64_TYPE,
314 CTI_CHAR16_ARRAY_TYPE,
315 CTI_CHAR32_ARRAY_TYPE,
316 CTI_WCHAR_ARRAY_TYPE,
318 CTI_CONST_STRING_TYPE,
320 /* Type for boolean expressions (bool in C++, int in C). */
323 CTI_TRUTHVALUE_FALSE,
325 CTI_DEFAULT_FUNCTION_TYPE,
327 /* These are not types, but we have to look them up all the time. */
328 CTI_FUNCTION_NAME_DECL,
329 CTI_PRETTY_FUNCTION_NAME_DECL,
330 CTI_C99_FUNCTION_NAME_DECL,
331 CTI_SAVED_FUNCTION_NAME_DECLS,
338 #define C_CPP_HASHNODE(id) \
339 (&(((struct c_common_identifier *) (id))->node))
340 #define C_RID_CODE(id) \
341 ((enum rid) (((struct c_common_identifier *) (id))->node.rid_code))
342 #define C_SET_RID_CODE(id, code) \
343 (((struct c_common_identifier *) (id))->node.rid_code = (unsigned char) code)
345 /* Identifier part common to the C front ends. Inherits from
346 tree_identifier, despite appearances. */
347 struct GTY(()) c_common_identifier {
348 struct tree_common common;
349 struct cpp_hashnode node;
352 /* An entry in the reserved keyword table. */
354 struct c_common_resword
356 const char *const word;
357 ENUM_BITFIELD(rid) const rid : 16;
358 const unsigned int disable : 16;
361 /* Mode used to build pointers (VOIDmode means ptr_mode). */
363 extern machine_mode c_default_pointer_mode;
365 /* Extra cpp_ttype values for C++. */
367 /* A token type for template-ids. If a template-id is processed while
368 parsing tentatively, it is replaced with a CPP_TEMPLATE_ID token;
369 the value of the CPP_TEMPLATE_ID is whatever was returned by
370 cp_parser_template_id. */
371 #define CPP_TEMPLATE_ID ((enum cpp_ttype) (CPP_KEYWORD + 1))
373 /* A token type for nested-name-specifiers. If a
374 nested-name-specifier is processed while parsing tentatively, it is
375 replaced with a CPP_NESTED_NAME_SPECIFIER token; the value of the
376 CPP_NESTED_NAME_SPECIFIER is whatever was returned by
377 cp_parser_nested_name_specifier_opt. */
378 #define CPP_NESTED_NAME_SPECIFIER ((enum cpp_ttype) (CPP_TEMPLATE_ID + 1))
380 /* A token type for pre-parsed C++0x decltype. */
381 #define CPP_DECLTYPE ((enum cpp_ttype) (CPP_NESTED_NAME_SPECIFIER + 1))
383 /* A token type for pre-parsed primary-expression (lambda- or statement-). */
384 #define CPP_PREPARSED_EXPR ((enum cpp_ttype) (CPP_DECLTYPE + 1))
386 /* The number of token types, including C++-specific ones. */
387 #define N_CP_TTYPES ((int) (CPP_PREPARSED_EXPR + 1))
389 /* Disable mask. Keywords are disabled if (reswords[i].disable &
390 mask) is _true_. Thus for keywords which are present in all
391 languages the disable field is zero. */
393 #define D_CONLY 0x001 /* C only (not in C++). */
394 #define D_CXXONLY 0x002 /* C++ only (not in C). */
395 #define D_C99 0x004 /* In C, C99 only. */
396 #define D_CXX0X 0x008 /* In C++, C++0X only. */
397 #define D_EXT 0x010 /* GCC extension. */
398 #define D_EXT89 0x020 /* GCC extension incorporated in C99. */
399 #define D_ASM 0x040 /* Disabled by -fno-asm. */
400 #define D_OBJC 0x080 /* In Objective C and neither C nor C++. */
401 #define D_CXX_OBJC 0x100 /* In Objective C, and C++, but not C. */
402 #define D_CXXWARN 0x200 /* In C warn with -Wcxx-compat. */
404 /* The reserved keyword table. */
405 extern const struct c_common_resword c_common_reswords[];
407 /* The number of items in the reserved keyword table. */
408 extern const unsigned int num_c_common_reswords;
410 #define char16_type_node c_global_trees[CTI_CHAR16_TYPE]
411 #define char32_type_node c_global_trees[CTI_CHAR32_TYPE]
412 #define wchar_type_node c_global_trees[CTI_WCHAR_TYPE]
413 #define underlying_wchar_type_node c_global_trees[CTI_UNDERLYING_WCHAR_TYPE]
414 #define wint_type_node c_global_trees[CTI_WINT_TYPE]
415 #define signed_size_type_node c_global_trees[CTI_SIGNED_SIZE_TYPE]
416 #define unsigned_ptrdiff_type_node c_global_trees[CTI_UNSIGNED_PTRDIFF_TYPE]
417 #define intmax_type_node c_global_trees[CTI_INTMAX_TYPE]
418 #define uintmax_type_node c_global_trees[CTI_UINTMAX_TYPE]
419 #define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE]
420 #define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE]
422 #define sig_atomic_type_node c_global_trees[CTI_SIG_ATOMIC_TYPE]
423 #define int8_type_node c_global_trees[CTI_INT8_TYPE]
424 #define int16_type_node c_global_trees[CTI_INT16_TYPE]
425 #define int32_type_node c_global_trees[CTI_INT32_TYPE]
426 #define int64_type_node c_global_trees[CTI_INT64_TYPE]
427 #define uint8_type_node c_global_trees[CTI_UINT8_TYPE]
428 #define c_uint16_type_node c_global_trees[CTI_UINT16_TYPE]
429 #define c_uint32_type_node c_global_trees[CTI_UINT32_TYPE]
430 #define c_uint64_type_node c_global_trees[CTI_UINT64_TYPE]
431 #define int_least8_type_node c_global_trees[CTI_INT_LEAST8_TYPE]
432 #define int_least16_type_node c_global_trees[CTI_INT_LEAST16_TYPE]
433 #define int_least32_type_node c_global_trees[CTI_INT_LEAST32_TYPE]
434 #define int_least64_type_node c_global_trees[CTI_INT_LEAST64_TYPE]
435 #define uint_least8_type_node c_global_trees[CTI_UINT_LEAST8_TYPE]
436 #define uint_least16_type_node c_global_trees[CTI_UINT_LEAST16_TYPE]
437 #define uint_least32_type_node c_global_trees[CTI_UINT_LEAST32_TYPE]
438 #define uint_least64_type_node c_global_trees[CTI_UINT_LEAST64_TYPE]
439 #define int_fast8_type_node c_global_trees[CTI_INT_FAST8_TYPE]
440 #define int_fast16_type_node c_global_trees[CTI_INT_FAST16_TYPE]
441 #define int_fast32_type_node c_global_trees[CTI_INT_FAST32_TYPE]
442 #define int_fast64_type_node c_global_trees[CTI_INT_FAST64_TYPE]
443 #define uint_fast8_type_node c_global_trees[CTI_UINT_FAST8_TYPE]
444 #define uint_fast16_type_node c_global_trees[CTI_UINT_FAST16_TYPE]
445 #define uint_fast32_type_node c_global_trees[CTI_UINT_FAST32_TYPE]
446 #define uint_fast64_type_node c_global_trees[CTI_UINT_FAST64_TYPE]
447 #define intptr_type_node c_global_trees[CTI_INTPTR_TYPE]
448 #define uintptr_type_node c_global_trees[CTI_UINTPTR_TYPE]
450 #define truthvalue_type_node c_global_trees[CTI_TRUTHVALUE_TYPE]
451 #define truthvalue_true_node c_global_trees[CTI_TRUTHVALUE_TRUE]
452 #define truthvalue_false_node c_global_trees[CTI_TRUTHVALUE_FALSE]
454 #define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE]
455 #define char16_array_type_node c_global_trees[CTI_CHAR16_ARRAY_TYPE]
456 #define char32_array_type_node c_global_trees[CTI_CHAR32_ARRAY_TYPE]
457 #define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE]
458 #define string_type_node c_global_trees[CTI_STRING_TYPE]
459 #define const_string_type_node c_global_trees[CTI_CONST_STRING_TYPE]
461 #define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE]
463 #define function_name_decl_node c_global_trees[CTI_FUNCTION_NAME_DECL]
464 #define pretty_function_name_decl_node c_global_trees[CTI_PRETTY_FUNCTION_NAME_DECL]
465 #define c99_function_name_decl_node c_global_trees[CTI_C99_FUNCTION_NAME_DECL]
466 #define saved_function_name_decls c_global_trees[CTI_SAVED_FUNCTION_NAME_DECLS]
468 /* The node for C++ `__null'. */
469 #define null_node c_global_trees[CTI_NULL]
471 extern GTY(()) tree c_global_trees[CTI_MAX];
473 /* In a RECORD_TYPE, a sorted array of the fields of the type, not a
474 tree for size reasons. */
475 struct GTY(()) sorted_fields_type {
477 tree GTY((length ("%h.len"))) elts[1];
480 /* Mark which labels are explicitly declared.
481 These may be shadowed, and may be referenced from nested functions. */
482 #define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label)
484 typedef enum c_language_kind
486 clk_c = 0, /* C90, C94, C99 or C11 */
487 clk_objc = 1, /* clk_c with ObjC features. */
488 clk_cxx = 2, /* ANSI/ISO C++ */
489 clk_objcxx = 3 /* clk_cxx with ObjC features. */
493 /* To test for a specific language use c_language, defined by each
494 front end. For "ObjC features" or "not C++" use the macros. */
495 extern c_language_kind c_language;
497 #define c_dialect_cxx() ((c_language & clk_cxx) != 0)
498 #define c_dialect_objc() ((c_language & clk_objc) != 0)
500 /* The various name of operator that appears in error messages. */
501 typedef enum ref_operator {
510 /* implicit conversion */
511 RO_IMPLICIT_CONVERSION,
516 /* Information about a statement tree. */
518 struct GTY(()) stmt_tree_s {
519 /* A stack of statement lists being collected. */
520 vec<tree, va_gc> *x_cur_stmt_list;
522 /* In C++, Nonzero if we should treat statements as full
523 expressions. In particular, this variable is non-zero if at the
524 end of a statement we should destroy any temporaries created
525 during that statement. Similarly, if, at the end of a block, we
526 should destroy any local variables in this block. Normally, this
527 variable is nonzero, since those are the normal semantics of
530 This flag has no effect in C. */
531 int stmts_are_full_exprs_p;
534 typedef struct stmt_tree_s *stmt_tree;
536 /* Global state pertinent to the current function. Some C dialects
537 extend this structure with additional fields. */
539 struct GTY(()) c_language_function {
540 /* While we are parsing the function, this contains information
541 about the statement-tree that we are building. */
542 struct stmt_tree_s x_stmt_tree;
544 /* Vector of locally defined typedefs, for
545 -Wunused-local-typedefs. */
546 vec<tree, va_gc> *local_typedefs;
549 #define stmt_list_stack (current_stmt_tree ()->x_cur_stmt_list)
551 /* When building a statement-tree, this is the current statement list
553 #define cur_stmt_list (stmt_list_stack->last ())
555 #define building_stmt_list_p() (stmt_list_stack && !stmt_list_stack->is_empty())
557 /* Language-specific hooks. */
559 /* If non-NULL, this function is called after a precompile header file
561 extern void (*lang_post_pch_load) (void);
563 extern void push_file_scope (void);
564 extern void pop_file_scope (void);
565 extern stmt_tree current_stmt_tree (void);
566 extern tree push_stmt_list (void);
567 extern tree pop_stmt_list (tree);
568 extern tree add_stmt (tree);
569 extern void push_cleanup (tree, tree, bool);
570 extern tree pushdecl_top_level (tree);
571 extern tree pushdecl (tree);
572 extern tree build_modify_expr (location_t, tree, tree, enum tree_code,
573 location_t, tree, tree);
574 extern tree build_array_notation_expr (location_t, tree, tree, enum tree_code,
575 location_t, tree, tree);
576 extern tree build_array_notation_ref (location_t, tree, tree, tree, tree, tree);
577 extern tree build_indirect_ref (location_t, tree, ref_operator);
579 extern int field_decl_cmp (const void *, const void *);
580 extern void resort_sorted_fields (void *, void *, gt_pointer_operator,
582 extern bool has_c_linkage (const_tree decl);
584 /* Switches common to the C front ends. */
586 /* Nonzero means don't output line number information. */
588 extern char flag_no_line_commands;
590 /* Nonzero causes -E output not to be done, but directives such as
591 #define that have side effects are still obeyed. */
593 extern char flag_no_output;
595 /* Nonzero means dump macros in some fashion; contains the 'D', 'M',
596 'N' or 'U' of the command line switch. */
598 extern char flag_dump_macros;
600 /* Nonzero means pass #include lines through to the output. */
602 extern char flag_dump_includes;
604 /* Nonzero means process PCH files while preprocessing. */
606 extern bool flag_pch_preprocess;
608 /* The file name to which we should write a precompiled header, or
609 NULL if no header will be written in this compile. */
611 extern const char *pch_file;
613 /* Nonzero if an ISO standard was selected. It rejects macros in the
618 /* C/ObjC language option variables. */
621 /* Nonzero means allow type mismatches in conditional expressions;
622 just make their values `void'. */
624 extern int flag_cond_mismatch;
626 /* Nonzero means enable C89 Amendment 1 features. */
628 extern int flag_isoc94;
630 /* Nonzero means use the ISO C99 (or C11) dialect of C. */
632 extern int flag_isoc99;
634 /* Nonzero means use the ISO C11 dialect of C. */
636 extern int flag_isoc11;
638 /* Nonzero means that we have builtin functions, and main is an int. */
640 extern int flag_hosted;
642 /* ObjC language option variables. */
645 /* Tells the compiler that this is a special run. Do not perform any
646 compiling, instead we are to test some platform dependent features
647 and output a C header file with appropriate definitions. */
649 extern int print_struct_values;
651 /* Tells the compiler what is the constant string class for ObjC. */
653 extern const char *constant_string_class_name;
656 /* C++ language option variables. */
659 /* Return TRUE if one of {flag_abi_version,flag_abi_compat_version} is
660 less than N and the other is at least N, for use by -Wabi. */
661 #define abi_version_crosses(N) \
662 (abi_version_at_least(N) \
663 != (flag_abi_compat_version == 0 \
664 || flag_abi_compat_version >= (N)))
666 /* Nonzero means generate separate instantiation control files and
667 juggle them at link time. */
669 extern int flag_use_repository;
671 /* The supported C++ dialects. */
686 /* The C++ dialect being used. C++98 is the default. */
687 extern enum cxx_dialect cxx_dialect;
689 /* Maximum template instantiation depth. This limit is rather
690 arbitrary, but it exists to limit the time it takes to notice
691 excessively recursive template instantiations. */
693 extern int max_tinst_depth;
695 /* Nonzero means that we should not issue warnings about problems that
696 occur when the code is executed, because the code being processed
697 is not expected to be executed. This is set during parsing. This
698 is used for cases like sizeof() and "0 ? a : b". This is a count,
699 not a bool, because unexecuted expressions can nest. */
701 extern int c_inhibit_evaluation_warnings;
703 /* Whether lexing has been completed, so subsequent preprocessor
704 errors should use the compiler's input_location. */
706 extern bool done_lexing;
708 /* C types are partitioned into three subsets: object, function, and
710 #define C_TYPE_OBJECT_P(type) \
711 (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type))
713 #define C_TYPE_INCOMPLETE_P(type) \
714 (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type) == 0)
716 #define C_TYPE_FUNCTION_P(type) \
717 (TREE_CODE (type) == FUNCTION_TYPE)
719 /* For convenience we define a single macro to identify the class of
720 object or incomplete types. */
721 #define C_TYPE_OBJECT_OR_INCOMPLETE_P(type) \
722 (!C_TYPE_FUNCTION_P (type))
724 struct visibility_flags
726 unsigned inpragma : 1; /* True when in #pragma GCC visibility. */
727 unsigned inlines_hidden : 1; /* True when -finlineshidden in effect. */
730 /* These enumerators are possible types of unsafe conversions.
731 SAFE_CONVERSION The conversion is safe
732 UNSAFE_OTHER Another type of conversion with problems
733 UNSAFE_SIGN Conversion between signed and unsigned integers
734 which are all warned about immediately, so this is unused
735 UNSAFE_REAL Conversions that reduce the precision of reals
736 including conversions from reals to integers
738 enum conversion_safety { SAFE_CONVERSION = 0, UNSAFE_OTHER, UNSAFE_SIGN, UNSAFE_REAL };
740 /* Global visibility options. */
741 extern struct visibility_flags visibility_options;
743 /* Attribute table common to the C front ends. */
744 extern const struct attribute_spec c_common_attribute_table[];
745 extern const struct attribute_spec c_common_format_attribute_table[];
747 /* Pointer to function to lazily generate the VAR_DECL for __FUNCTION__ etc.
748 ID is the identifier to use, NAME is the string.
749 TYPE_DEP indicates whether it depends on type of the function or not
750 (i.e. __PRETTY_FUNCTION__). */
752 extern tree (*make_fname_decl) (location_t, tree, int);
754 /* In c-decl.c and cp/tree.c. FIXME. */
755 extern void c_register_addr_space (const char *str, addr_space_t as);
758 extern bool in_late_binary_op;
759 extern const char *c_addr_space_name (addr_space_t as);
760 extern tree identifier_global_value (tree);
761 extern tree c_linkage_bindings (tree);
762 extern void record_builtin_type (enum rid, const char *, tree);
763 extern tree build_void_list_node (void);
764 extern void start_fname_decls (void);
765 extern void finish_fname_decls (void);
766 extern const char *fname_as_string (int);
767 extern tree fname_decl (location_t, unsigned, tree);
769 extern int check_user_alignment (const_tree, bool);
770 extern void check_function_arguments (const_tree, int, tree *);
771 extern void check_function_arguments_recurse (void (*)
773 unsigned HOST_WIDE_INT),
775 unsigned HOST_WIDE_INT);
776 extern bool check_builtin_function_arguments (tree, int, tree *);
777 extern void check_function_format (tree, int, tree *);
778 extern tree handle_format_attribute (tree *, tree, tree, int, bool *);
779 extern tree handle_format_arg_attribute (tree *, tree, tree, int, bool *);
780 extern bool attribute_takes_identifier_p (const_tree);
781 extern bool c_common_handle_option (size_t, const char *, int, int, location_t,
782 const struct cl_option_handlers *);
783 extern bool default_handle_c_option (size_t, const char *, int);
784 extern tree c_common_type_for_mode (machine_mode, int);
785 extern tree c_common_type_for_size (unsigned int, int);
786 extern tree c_common_fixed_point_type_for_size (unsigned int, unsigned int,
788 extern tree c_common_unsigned_type (tree);
789 extern tree c_common_signed_type (tree);
790 extern tree c_common_signed_or_unsigned_type (int, tree);
791 extern void c_common_init_ts (void);
792 extern tree c_build_bitfield_integer_type (unsigned HOST_WIDE_INT, int);
793 extern enum conversion_safety unsafe_conversion_p (location_t, tree, tree,
795 extern bool decl_with_nonnull_addr_p (const_tree);
796 extern tree c_fully_fold (tree, bool, bool *);
797 extern tree decl_constant_value_for_optimization (tree);
798 extern tree c_wrap_maybe_const (tree, bool);
799 extern tree c_save_expr (tree);
800 extern tree c_common_truthvalue_conversion (location_t, tree);
801 extern void c_apply_type_quals_to_decl (int, tree);
802 extern tree c_sizeof_or_alignof_type (location_t, tree, bool, bool, int);
803 extern tree c_alignof_expr (location_t, tree);
804 /* Print an error message for invalid operands to arith operation CODE.
805 NOP_EXPR is used as a special case (see truthvalue_conversion). */
806 extern void binary_op_error (location_t, enum tree_code, tree, tree);
807 extern tree fix_string_type (tree);
808 extern void constant_expression_warning (tree);
809 extern void constant_expression_error (tree);
810 extern bool strict_aliasing_warning (tree, tree, tree);
811 extern void sizeof_pointer_memaccess_warning (location_t *, tree,
812 vec<tree, va_gc> *, tree *,
813 bool (*) (tree, tree));
814 extern void warnings_for_convert_and_check (location_t, tree, tree, tree);
815 extern tree convert_and_check (location_t, tree, tree);
816 extern void overflow_warning (location_t, tree);
817 extern bool warn_if_unused_value (const_tree, location_t);
818 extern void warn_logical_operator (location_t, enum tree_code, tree,
819 enum tree_code, tree, enum tree_code, tree);
820 extern void warn_logical_not_parentheses (location_t, enum tree_code, tree);
821 extern void check_main_parameter_types (tree decl);
822 extern bool c_determine_visibility (tree);
823 extern bool vector_types_compatible_elements_p (tree, tree);
824 extern void mark_valid_location_for_stdc_pragma (bool);
825 extern bool valid_location_for_stdc_pragma_p (void);
826 extern void set_float_const_decimal64 (void);
827 extern void clear_float_const_decimal64 (void);
828 extern bool float_const_decimal64_p (void);
830 extern bool keyword_begins_type_specifier (enum rid);
831 extern bool keyword_is_storage_class_specifier (enum rid);
832 extern bool keyword_is_type_qualifier (enum rid);
833 extern bool keyword_is_decl_specifier (enum rid);
834 extern bool cxx_fundamental_alignment_p (unsigned);
835 extern bool pointer_to_zero_sized_aggr_p (tree);
837 #define c_sizeof(LOC, T) c_sizeof_or_alignof_type (LOC, T, true, false, 1)
838 #define c_alignof(LOC, T) c_sizeof_or_alignof_type (LOC, T, false, false, 1)
840 /* Subroutine of build_binary_op, used for certain operations. */
841 extern tree shorten_binary_op (tree result_type, tree op0, tree op1, bool bitwise);
843 /* Subroutine of build_binary_op, used for comparison operations.
844 See if the operands have both been converted from subword integer types
845 and, if so, perhaps change them both back to their original type. */
846 extern tree shorten_compare (location_t, tree *, tree *, tree *,
849 extern tree pointer_int_sum (location_t, enum tree_code, tree, tree,
852 /* Add qualifiers to a type, in the fashion for C. */
853 extern tree c_build_qualified_type (tree, int, tree = NULL_TREE, size_t = 0);
855 /* Build tree nodes and builtin functions common to both C and C++ language
857 extern void c_common_nodes_and_builtins (void);
859 extern void disable_builtin_function (const char *);
861 extern void set_compound_literal_name (tree decl);
863 extern tree build_va_arg (location_t, tree, tree);
865 extern const unsigned int c_family_lang_mask;
866 extern unsigned int c_common_option_lang_mask (void);
867 extern void c_common_diagnostics_set_defaults (diagnostic_context *);
868 extern bool c_common_complain_wrong_lang_p (const struct cl_option *);
869 extern void c_common_init_options_struct (struct gcc_options *);
870 extern void c_common_init_options (unsigned int, struct cl_decoded_option *);
871 extern bool c_common_post_options (const char **);
872 extern bool c_common_init (void);
873 extern void c_common_finish (void);
874 extern void c_common_parse_file (void);
875 extern FILE *get_dump_info (int, int *);
876 extern alias_set_type c_common_get_alias_set (tree);
877 extern void c_register_builtin_type (tree, const char*);
878 extern bool c_promoting_integer_type_p (const_tree);
879 extern int self_promoting_args_p (const_tree);
880 extern tree strip_pointer_operator (tree);
881 extern tree strip_pointer_or_array_types (tree);
882 extern HOST_WIDE_INT c_common_to_target_charset (HOST_WIDE_INT);
884 /* This is the basic parsing function. */
885 extern void c_parse_file (void);
887 extern void warn_for_omitted_condop (location_t, tree);
889 /* These macros provide convenient access to the various _STMT nodes. */
891 /* Nonzero if a given STATEMENT_LIST represents the outermost binding
892 if a statement expression. */
893 #define STATEMENT_LIST_STMT_EXPR(NODE) \
894 TREE_LANG_FLAG_1 (STATEMENT_LIST_CHECK (NODE))
896 /* Nonzero if a label has been added to the statement list. */
897 #define STATEMENT_LIST_HAS_LABEL(NODE) \
898 TREE_LANG_FLAG_3 (STATEMENT_LIST_CHECK (NODE))
900 /* C_MAYBE_CONST_EXPR accessors. */
901 #define C_MAYBE_CONST_EXPR_PRE(NODE) \
902 TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 0)
903 #define C_MAYBE_CONST_EXPR_EXPR(NODE) \
904 TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 1)
905 #define C_MAYBE_CONST_EXPR_INT_OPERANDS(NODE) \
906 TREE_LANG_FLAG_0 (C_MAYBE_CONST_EXPR_CHECK (NODE))
907 #define C_MAYBE_CONST_EXPR_NON_CONST(NODE) \
908 TREE_LANG_FLAG_1 (C_MAYBE_CONST_EXPR_CHECK (NODE))
909 #define EXPR_INT_CONST_OPERANDS(EXPR) \
910 (INTEGRAL_TYPE_P (TREE_TYPE (EXPR)) \
911 && (TREE_CODE (EXPR) == INTEGER_CST \
912 || (TREE_CODE (EXPR) == C_MAYBE_CONST_EXPR \
913 && C_MAYBE_CONST_EXPR_INT_OPERANDS (EXPR))))
915 /* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */
916 #define DECL_C_BIT_FIELD(NODE) \
917 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1)
918 #define SET_DECL_C_BIT_FIELD(NODE) \
919 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 1)
920 #define CLEAR_DECL_C_BIT_FIELD(NODE) \
921 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0)
923 extern tree do_case (location_t, tree, tree);
924 extern tree build_stmt (location_t, enum tree_code, ...);
925 extern tree build_real_imag_expr (location_t, enum tree_code, tree);
927 /* These functions must be defined by each front-end which implements
928 a variant of the C language. They are used in c-common.c. */
930 extern tree build_unary_op (location_t, enum tree_code, tree, int);
931 extern tree build_binary_op (location_t, enum tree_code, tree, tree, int);
932 extern tree perform_integral_promotions (tree);
934 /* These functions must be defined by each front-end which implements
935 a variant of the C language. They are used by port files. */
937 extern tree default_conversion (tree);
939 /* Given two integer or real types, return the type for their sum.
940 Given two compatible ANSI C types, returns the merged type. */
942 extern tree common_type (tree, tree);
944 extern tree decl_constant_value (tree);
946 /* Handle increment and decrement of boolean types. */
947 extern tree boolean_increment (enum tree_code, tree);
949 extern int case_compare (splay_tree_key, splay_tree_key);
951 extern tree c_add_case_label (location_t, splay_tree, tree, tree, tree, tree);
953 extern void c_do_switch_warnings (splay_tree, location_t, tree, tree);
955 extern tree build_function_call (location_t, tree, tree);
957 extern tree build_function_call_vec (location_t, vec<location_t>, tree,
958 vec<tree, va_gc> *, vec<tree, va_gc> *);
960 extern tree resolve_overloaded_builtin (location_t, tree, vec<tree, va_gc> *);
962 extern tree finish_label_address_expr (tree, location_t);
964 /* Same function prototype, but the C and C++ front ends have
965 different implementations. Used in c-common.c. */
966 extern tree lookup_label (tree);
967 extern tree lookup_name (tree);
968 extern bool lvalue_p (const_tree);
970 extern bool vector_targets_convertible_p (const_tree t1, const_tree t2);
971 extern bool vector_types_convertible_p (const_tree t1, const_tree t2, bool emit_lax_note);
972 extern tree c_build_vec_perm_expr (location_t, tree, tree, tree, bool = true);
974 extern void init_c_lex (void);
976 extern void c_cpp_builtins (cpp_reader *);
977 extern void c_cpp_builtins_optimize_pragma (cpp_reader *, tree, tree);
978 extern bool c_cpp_error (cpp_reader *, int, int, location_t, unsigned int,
979 const char *, va_list *)
980 ATTRIBUTE_GCC_DIAG(6,0);
981 extern int c_common_has_attribute (cpp_reader *);
983 extern bool parse_optimize_options (tree, bool);
985 /* Positive if an implicit `extern "C"' scope has just been entered;
986 negative if such a scope has just been exited. */
987 extern GTY(()) int pending_lang_change;
989 /* Information recorded about each file examined during compilation. */
993 int time; /* Time spent in the file. */
995 /* Flags used only by C++.
996 INTERFACE_ONLY nonzero means that we are in an "interface" section
997 of the compiler. INTERFACE_UNKNOWN nonzero means we cannot trust
998 the value of INTERFACE_ONLY. If INTERFACE_UNKNOWN is zero and
999 INTERFACE_ONLY is zero, it means that we are responsible for
1000 exporting definitions that others might need. */
1001 short interface_only;
1002 short interface_unknown;
1005 struct c_fileinfo *get_fileinfo (const char *);
1006 extern void dump_time_statistics (void);
1008 extern bool c_dump_tree (void *, tree);
1010 extern void verify_sequence_points (tree);
1012 extern tree fold_offsetof_1 (tree);
1013 extern tree fold_offsetof (tree);
1015 /* Places where an lvalue, or modifiable lvalue, may be required.
1016 Used to select diagnostic messages in lvalue_error and
1026 extern void readonly_error (location_t, tree, enum lvalue_use);
1027 extern void lvalue_error (location_t, enum lvalue_use);
1028 extern void invalid_indirection_error (location_t, tree, ref_operator);
1030 extern int complete_array_type (tree *, tree, bool);
1032 extern tree builtin_type_for_size (int, bool);
1034 extern void c_common_mark_addressable_vec (tree);
1036 extern void warn_array_subscript_with_type_char (location_t, tree);
1037 extern void warn_about_parentheses (location_t,
1039 enum tree_code, tree,
1040 enum tree_code, tree);
1041 extern void warn_for_unused_label (tree label);
1042 extern void warn_for_div_by_zero (location_t, tree divisor);
1043 extern void warn_for_sign_compare (location_t,
1044 tree orig_op0, tree orig_op1,
1047 enum tree_code resultcode);
1048 extern void do_warn_double_promotion (tree, tree, tree, const char *,
1050 extern void set_underlying_type (tree);
1051 extern void record_types_used_by_current_var_decl (tree);
1052 extern void record_locally_defined_typedef (tree);
1053 extern void maybe_record_typedef_use (tree);
1054 extern void maybe_warn_unused_local_typedefs (void);
1055 extern void maybe_warn_bool_compare (location_t, enum tree_code, tree, tree);
1056 extern vec<tree, va_gc> *make_tree_vector (void);
1057 extern void release_tree_vector (vec<tree, va_gc> *);
1058 extern vec<tree, va_gc> *make_tree_vector_single (tree);
1059 extern vec<tree, va_gc> *make_tree_vector_from_list (tree);
1060 extern vec<tree, va_gc> *make_tree_vector_copy (const vec<tree, va_gc> *);
1062 /* Used for communication between c_common_type_for_mode and
1063 c_register_builtin_type. */
1064 extern GTY(()) tree registered_builtin_types;
1066 /* In c-gimplify.c */
1067 extern void c_genericize (tree);
1068 extern int c_gimplify_expr (tree *, gimple_seq *, gimple_seq *);
1069 extern tree c_build_bind_expr (location_t, tree, tree);
1072 extern void pch_init (void);
1073 extern void pch_cpp_save_state (void);
1074 extern int c_common_valid_pch (cpp_reader *pfile, const char *name, int fd);
1075 extern void c_common_read_pch (cpp_reader *pfile, const char *name, int fd,
1077 extern void c_common_write_pch (void);
1078 extern void c_common_no_more_pch (void);
1079 extern void c_common_pch_pragma (cpp_reader *pfile, const char *);
1081 /* In *-checksum.c */
1082 extern const unsigned char executable_checksum[16];
1084 /* In c-cppbuiltin.c */
1085 extern void builtin_define_std (const char *macro);
1086 extern void builtin_define_with_value (const char *, const char *, int);
1087 extern void c_stddef_cpp_builtins (void);
1088 extern void fe_file_change (const struct line_map *);
1089 extern void c_parse_error (const char *, enum cpp_ttype, tree, unsigned char);
1091 /* In c-ppoutput.c */
1092 extern void init_pp_output (FILE *);
1093 extern void preprocess_file (cpp_reader *);
1094 extern void pp_file_change (const struct line_map *);
1095 extern void pp_dir_change (cpp_reader *, const char *);
1096 extern bool check_missing_format_attribute (tree, tree);
1099 #if HOST_BITS_PER_WIDE_INT >= 64
1100 typedef unsigned HOST_WIDE_INT omp_clause_mask;
1101 # define OMP_CLAUSE_MASK_1 ((omp_clause_mask) 1)
1103 struct omp_clause_mask
1105 inline omp_clause_mask ();
1106 inline omp_clause_mask (unsigned HOST_WIDE_INT l);
1107 inline omp_clause_mask (unsigned HOST_WIDE_INT l,
1108 unsigned HOST_WIDE_INT h);
1109 inline omp_clause_mask &operator &= (omp_clause_mask);
1110 inline omp_clause_mask &operator |= (omp_clause_mask);
1111 inline omp_clause_mask operator ~ () const;
1112 inline omp_clause_mask operator & (omp_clause_mask) const;
1113 inline omp_clause_mask operator | (omp_clause_mask) const;
1114 inline omp_clause_mask operator >> (int);
1115 inline omp_clause_mask operator << (int);
1116 inline bool operator == (omp_clause_mask) const;
1117 inline bool operator != (omp_clause_mask) const;
1118 unsigned HOST_WIDE_INT low, high;
1122 omp_clause_mask::omp_clause_mask ()
1127 omp_clause_mask::omp_clause_mask (unsigned HOST_WIDE_INT l)
1133 omp_clause_mask::omp_clause_mask (unsigned HOST_WIDE_INT l,
1134 unsigned HOST_WIDE_INT h)
1139 inline omp_clause_mask &
1140 omp_clause_mask::operator &= (omp_clause_mask b)
1147 inline omp_clause_mask &
1148 omp_clause_mask::operator |= (omp_clause_mask b)
1155 inline omp_clause_mask
1156 omp_clause_mask::operator ~ () const
1158 omp_clause_mask ret (~low, ~high);
1162 inline omp_clause_mask
1163 omp_clause_mask::operator | (omp_clause_mask b) const
1165 omp_clause_mask ret (low | b.low, high | b.high);
1169 inline omp_clause_mask
1170 omp_clause_mask::operator & (omp_clause_mask b) const
1172 omp_clause_mask ret (low & b.low, high & b.high);
1176 inline omp_clause_mask
1177 omp_clause_mask::operator << (int amount)
1179 omp_clause_mask ret;
1180 if (amount >= HOST_BITS_PER_WIDE_INT)
1183 ret.high = low << (amount - HOST_BITS_PER_WIDE_INT);
1185 else if (amount == 0)
1189 ret.low = low << amount;
1190 ret.high = (low >> (HOST_BITS_PER_WIDE_INT - amount))
1196 inline omp_clause_mask
1197 omp_clause_mask::operator >> (int amount)
1199 omp_clause_mask ret;
1200 if (amount >= HOST_BITS_PER_WIDE_INT)
1202 ret.low = high >> (amount - HOST_BITS_PER_WIDE_INT);
1205 else if (amount == 0)
1209 ret.low = (high << (HOST_BITS_PER_WIDE_INT - amount))
1211 ret.high = high >> amount;
1217 omp_clause_mask::operator == (omp_clause_mask b) const
1219 return low == b.low && high == b.high;
1223 omp_clause_mask::operator != (omp_clause_mask b) const
1225 return low != b.low || high != b.high;
1228 # define OMP_CLAUSE_MASK_1 omp_clause_mask (1)
1231 enum c_omp_clause_split
1233 C_OMP_CLAUSE_SPLIT_TARGET = 0,
1234 C_OMP_CLAUSE_SPLIT_TEAMS,
1235 C_OMP_CLAUSE_SPLIT_DISTRIBUTE,
1236 C_OMP_CLAUSE_SPLIT_PARALLEL,
1237 C_OMP_CLAUSE_SPLIT_FOR,
1238 C_OMP_CLAUSE_SPLIT_SIMD,
1239 C_OMP_CLAUSE_SPLIT_COUNT,
1240 C_OMP_CLAUSE_SPLIT_SECTIONS = C_OMP_CLAUSE_SPLIT_FOR
1243 extern tree c_finish_omp_master (location_t, tree);
1244 extern tree c_finish_omp_taskgroup (location_t, tree);
1245 extern tree c_finish_omp_critical (location_t, tree, tree);
1246 extern tree c_finish_omp_ordered (location_t, tree);
1247 extern void c_finish_omp_barrier (location_t);
1248 extern tree c_finish_omp_atomic (location_t, enum tree_code, enum tree_code,
1249 tree, tree, tree, tree, tree, bool, bool);
1250 extern void c_finish_omp_flush (location_t);
1251 extern void c_finish_omp_taskwait (location_t);
1252 extern void c_finish_omp_taskyield (location_t);
1253 extern tree c_finish_omp_for (location_t, enum tree_code, tree, tree, tree,
1255 extern tree c_finish_oacc_wait (location_t, tree, tree);
1256 extern void c_omp_split_clauses (location_t, enum tree_code, omp_clause_mask,
1258 extern tree c_omp_declare_simd_clauses_to_numbers (tree, tree);
1259 extern void c_omp_declare_simd_clauses_to_decls (tree, tree);
1260 extern enum omp_clause_default_kind c_omp_predetermined_sharing (tree);
1262 /* Return next tree in the chain for chain_next walking of tree nodes. */
1264 c_tree_chain_next (tree t)
1266 /* TREE_CHAIN of a type is TYPE_STUB_DECL, which is different
1267 kind of object, never a long chain of nodes. Prefer
1268 TYPE_NEXT_VARIANT for types. */
1269 if (CODE_CONTAINS_STRUCT (TREE_CODE (t), TS_TYPE_COMMON))
1270 return TYPE_NEXT_VARIANT (t);
1271 /* Otherwise, if there is TREE_CHAIN, return it. */
1272 if (CODE_CONTAINS_STRUCT (TREE_CODE (t), TS_COMMON))
1273 return TREE_CHAIN (t);
1277 /* Mask used by tm_stmt_attr. */
1278 #define TM_STMT_ATTR_OUTER 2
1279 #define TM_STMT_ATTR_ATOMIC 4
1280 #define TM_STMT_ATTR_RELAXED 8
1282 extern int parse_tm_stmt_attr (tree, int);
1284 /* Mask used by tm_attr_to_mask and tm_mask_to_attr. Note that these
1285 are ordered specifically such that more restrictive attributes are
1286 at lower bit positions. This fact is known by the C++ tm attribute
1287 inheritance code such that least bit extraction (mask & -mask) results
1288 in the most restrictive attribute. */
1289 #define TM_ATTR_SAFE 1
1290 #define TM_ATTR_CALLABLE 2
1291 #define TM_ATTR_PURE 4
1292 #define TM_ATTR_IRREVOCABLE 8
1293 #define TM_ATTR_MAY_CANCEL_OUTER 16
1295 extern int tm_attr_to_mask (tree);
1296 extern tree tm_mask_to_attr (int);
1297 extern tree find_tm_attribute (tree);
1299 /* A suffix-identifier value doublet that represents user-defined literals
1301 enum overflow_type {
1307 struct GTY(()) tree_userdef_literal {
1308 struct tree_base base;
1312 enum overflow_type overflow;
1315 #define USERDEF_LITERAL_SUFFIX_ID(NODE) \
1316 (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->suffix_id)
1318 #define USERDEF_LITERAL_VALUE(NODE) \
1319 (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->value)
1321 #define USERDEF_LITERAL_OVERFLOW(NODE) \
1322 (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->overflow)
1324 #define USERDEF_LITERAL_NUM_STRING(NODE) \
1325 (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->num_string)
1327 #define USERDEF_LITERAL_TYPE(NODE) \
1328 (TREE_TYPE (USERDEF_LITERAL_VALUE (NODE)))
1330 extern tree build_userdef_literal (tree suffix_id, tree value,
1331 enum overflow_type overflow,
1334 extern bool convert_vector_to_pointer_for_subscript (location_t, tree *, tree);
1336 /* Possibe cases of scalar_to_vector conversion. */
1338 stv_error, /* Error occurred. */
1339 stv_nothing, /* Nothing happened. */
1340 stv_firstarg, /* First argument must be expanded. */
1341 stv_secondarg /* Second argument must be expanded. */
1344 extern enum stv_conv scalar_to_vector (location_t loc, enum tree_code code,
1345 tree op0, tree op1, bool);
1347 /* In c-cilkplus.c */
1348 extern tree c_finish_cilk_clauses (tree);
1349 extern tree c_validate_cilk_plus_loop (tree *, int *, void *);
1350 extern bool c_check_cilk_loop (location_t, tree);
1352 /* These #defines allow users to access different operands of the
1353 array notation tree. */
1355 #define ARRAY_NOTATION_CHECK(NODE) TREE_CHECK (NODE, ARRAY_NOTATION_REF)
1356 #define ARRAY_NOTATION_ARRAY(NODE) \
1357 TREE_OPERAND (ARRAY_NOTATION_CHECK (NODE), 0)
1358 #define ARRAY_NOTATION_START(NODE) \
1359 TREE_OPERAND (ARRAY_NOTATION_CHECK (NODE), 1)
1360 #define ARRAY_NOTATION_LENGTH(NODE) \
1361 TREE_OPERAND (ARRAY_NOTATION_CHECK (NODE), 2)
1362 #define ARRAY_NOTATION_STRIDE(NODE) \
1363 TREE_OPERAND (ARRAY_NOTATION_CHECK (NODE), 3)
1365 /* This structure holds all the scalar values and its appropriate variable
1366 replacment. It is mainly used by the function that pulls all the invariant
1367 parts that should be executed only once, which comes with array notation
1371 vec<tree, va_gc> *list_values;
1372 vec<tree, va_gc> *replacement;
1373 vec<enum tree_code, va_gc> *additional_tcodes;
1376 /* This structure holds all the important components that can be extracted
1377 from an ARRAY_NOTATION_REF expression. It is used to pass array notation
1378 information between the functions that are responsible for expansion. */
1379 typedef struct cilkplus_an_parts
1388 /* This structure holds the components necessary to create the loop around
1389 the ARRAY_REF that is created using the ARRAY_NOTATION information. */
1391 typedef struct cilkplus_an_loop_parts
1393 tree var; /* Loop induction variable. */
1394 tree incr; /* Loop increment/decrement expression. */
1395 tree cmp; /* Loop condition. */
1396 tree ind_init; /* Initialization of the loop induction variable. */
1399 /* In array-notation-common.c. */
1400 extern HOST_WIDE_INT extract_sec_implicit_index_arg (location_t, tree);
1401 extern bool is_sec_implicit_index_fn (tree);
1402 extern void array_notation_init_builtins (void);
1403 extern struct c_expr fix_array_notation_expr (location_t, enum tree_code,
1405 extern bool contains_array_notation_expr (tree);
1406 extern tree expand_array_notation_exprs (tree);
1407 extern tree fix_conditional_array_notations (tree);
1408 extern tree find_correct_array_notation_type (tree);
1409 extern bool length_mismatch_in_expr_p (location_t, vec<vec<an_parts> >);
1410 extern enum built_in_function is_cilkplus_reduce_builtin (tree);
1411 extern bool find_rank (location_t, tree, tree, bool, size_t *);
1412 extern void extract_array_notation_exprs (tree, bool, vec<tree, va_gc> **);
1413 extern void replace_array_notations (tree *, bool, vec<tree, va_gc> *,
1414 vec<tree, va_gc> *);
1415 extern tree find_inv_trees (tree *, int *, void *);
1416 extern tree replace_inv_trees (tree *, int *, void *);
1417 extern tree find_correct_array_notation_type (tree op);
1418 extern void cilkplus_extract_an_triplets (vec<tree, va_gc> *, size_t, size_t,
1419 vec<vec<an_parts> > *);
1420 extern vec <tree, va_gc> *fix_sec_implicit_args
1421 (location_t, vec <tree, va_gc> *, vec<an_loop_parts>, size_t, tree);
1424 extern tree insert_cilk_frame (tree);
1425 extern void cilk_init_builtins (void);
1426 extern int gimplify_cilk_spawn (tree *);
1427 extern void cilk_install_body_with_frame_cleanup (tree, tree, void *);
1428 extern bool cilk_detect_spawn_and_unwrap (tree *);
1429 extern bool cilk_set_spawn_marker (location_t, tree);
1430 extern tree build_cilk_sync (void);
1431 extern tree build_cilk_spawn (location_t, tree);
1432 extern tree make_cilk_frame (tree);
1433 extern tree create_cilk_function_exit (tree, bool, bool);
1434 extern tree cilk_install_body_pedigree_operations (tree);
1435 extern void cilk_outline (tree, tree *, void *);
1436 extern bool contains_cilk_spawn_stmt (tree);
1437 extern tree cilk_for_number_of_iterations (tree);
1438 extern bool check_no_cilk (tree, const char *, const char *,
1439 location_t loc = UNKNOWN_LOCATION);
1440 #endif /* ! GCC_C_COMMON_H */