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7f4edbcb | 1 | /* Definitions for c-common.c. |
517cbe13 | 2 | Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998, |
7bd11157 | 3 | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011 |
66647d44 | 4 | Free Software Foundation, Inc. |
7f4edbcb | 5 | |
1322177d | 6 | This file is part of GCC. |
7f4edbcb | 7 | |
1322177d LB |
8 | GCC is free software; you can redistribute it and/or modify it under |
9 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 10 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 11 | version. |
7f4edbcb | 12 | |
1322177d LB |
13 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | for more details. | |
7f4edbcb BS |
17 | |
18 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
19 | along with GCC; see the file COPYING3. If not see |
20 | <http://www.gnu.org/licenses/>. */ | |
7f4edbcb | 21 | |
0e5921e8 ZW |
22 | #ifndef GCC_C_COMMON_H |
23 | #define GCC_C_COMMON_H | |
24 | ||
8f17b5c5 | 25 | #include "splay-tree.h" |
2a967f3d | 26 | #include "cpplib.h" |
d07605f5 | 27 | #include "ggc.h" |
8f17b5c5 | 28 | |
59cc9210 SB |
29 | /* In order for the format checking to accept the C frontend |
30 | diagnostic framework extensions, you must include this file before | |
718f9c0f | 31 | diagnostic-core.h, not after. The C front end formats are a subset of those |
59cc9210 SB |
32 | for C++, so they are the appropriate set to use in common code; |
33 | cp-tree.h overrides this for C++. */ | |
718f9c0f MLI |
34 | #if defined(GCC_DIAGNOSTIC_CORE_H) |
35 | #error \ | |
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 \ | |
38 | never after. | |
39 | #endif | |
59cc9210 SB |
40 | #ifndef GCC_DIAG_STYLE |
41 | #define GCC_DIAG_STYLE __gcc_cdiag__ | |
42 | #endif | |
43 | #include "diagnostic-core.h" | |
44 | ||
f2c5f623 | 45 | /* Usage of TREE_LANG_FLAG_?: |
3af07c22 | 46 | 0: IDENTIFIER_MARKED (used by search routines). |
f2c5f623 | 47 | DECL_PRETTY_FUNCTION_P (in VAR_DECL) |
928c19bb | 48 | C_MAYBE_CONST_EXPR_INT_OPERANDS (in C_MAYBE_CONST_EXPR, for C) |
f2c5f623 | 49 | 1: C_DECLARED_LABEL_FLAG (in LABEL_DECL) |
325c3691 | 50 | STATEMENT_LIST_STMT_EXPR (in STATEMENT_LIST) |
928c19bb | 51 | C_MAYBE_CONST_EXPR_NON_CONST (in C_MAYBE_CONST_EXPR, for C) |
6de9cd9a | 52 | 2: unused |
174283a3 | 53 | 3: STATEMENT_LIST_HAS_LABEL (in STATEMENT_LIST) |
325c3691 | 54 | 4: unused |
f2c5f623 BC |
55 | */ |
56 | ||
0e5921e8 | 57 | /* Reserved identifiers. This is the union of all the keywords for C, |
40f03658 | 58 | C++, and Objective-C. All the type modifiers have to be in one |
0e5921e8 | 59 | block at the beginning, because they are used as mask bits. There |
bbceee64 | 60 | are 28 type modifiers; if we add many more we will have to redesign |
0e5921e8 | 61 | the mask mechanism. */ |
f09f1de5 MM |
62 | |
63 | enum rid | |
64 | { | |
0e5921e8 | 65 | /* Modifiers: */ |
2ba84f36 | 66 | /* C, in empirical order of frequency. */ |
0e5921e8 ZW |
67 | RID_STATIC = 0, |
68 | RID_UNSIGNED, RID_LONG, RID_CONST, RID_EXTERN, | |
69 | RID_REGISTER, RID_TYPEDEF, RID_SHORT, RID_INLINE, | |
70 | RID_VOLATILE, RID_SIGNED, RID_AUTO, RID_RESTRICT, | |
bbceee64 | 71 | RID_NORETURN, |
0e5921e8 ZW |
72 | |
73 | /* C extensions */ | |
ab22c1fa | 74 | RID_COMPLEX, RID_THREAD, RID_SAT, |
0e5921e8 ZW |
75 | |
76 | /* C++ */ | |
77 | RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE, | |
78 | ||
1973201f NP |
79 | /* ObjC ("PQ" reserved words - they do not appear after a '@' and |
80 | are keywords only in specific contexts) */ | |
b8363a24 | 81 | RID_IN, RID_OUT, RID_INOUT, RID_BYCOPY, RID_BYREF, RID_ONEWAY, |
0e5921e8 | 82 | |
668ea4b1 IS |
83 | /* ObjC ("PATTR" reserved words - they do not appear after a '@' |
84 | and are keywords only as property attributes) */ | |
200290f2 NP |
85 | RID_GETTER, RID_SETTER, |
86 | RID_READONLY, RID_READWRITE, | |
87 | RID_ASSIGN, RID_RETAIN, RID_COPY, | |
200290f2 | 88 | RID_NONATOMIC, |
668ea4b1 | 89 | |
fa5da7de JM |
90 | /* C (reserved and imaginary types not implemented, so any use is a |
91 | syntax error) */ | |
92 | RID_IMAGINARY, | |
93 | ||
0e5921e8 ZW |
94 | /* C */ |
95 | RID_INT, RID_CHAR, RID_FLOAT, RID_DOUBLE, RID_VOID, | |
a6766312 | 96 | RID_INT128, |
0e5921e8 ZW |
97 | RID_ENUM, RID_STRUCT, RID_UNION, RID_IF, RID_ELSE, |
98 | RID_WHILE, RID_DO, RID_FOR, RID_SWITCH, RID_CASE, | |
99 | RID_DEFAULT, RID_BREAK, RID_CONTINUE, RID_RETURN, RID_GOTO, | |
100 | RID_SIZEOF, | |
101 | ||
102 | /* C extensions */ | |
103 | RID_ASM, RID_TYPEOF, RID_ALIGNOF, RID_ATTRIBUTE, RID_VA_ARG, | |
da5b307a | 104 | RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_CHOOSE_EXPR, |
f90e8e2e | 105 | RID_TYPES_COMPATIBLE_P, RID_BUILTIN_COMPLEX, RID_BUILTIN_SHUFFLE, |
9a8ce21f | 106 | RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128, |
ab22c1fa | 107 | RID_FRACT, RID_ACCUM, |
0e5921e8 | 108 | |
48b0b196 | 109 | /* C11 */ |
d19fa6b5 JM |
110 | RID_ALIGNAS, |
111 | ||
eea1139b ILT |
112 | /* This means to warn that this is a C++ keyword, and then treat it |
113 | as a normal identifier. */ | |
114 | RID_CXX_COMPAT_WARN, | |
115 | ||
0a35513e AH |
116 | /* GNU transactional memory extension */ |
117 | RID_TRANSACTION_ATOMIC, RID_TRANSACTION_RELAXED, RID_TRANSACTION_CANCEL, | |
118 | ||
0ba8a114 NS |
119 | /* Too many ways of getting the name of a function as a string */ |
120 | RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME, | |
121 | ||
1973201f NP |
122 | /* C++ (some of these are keywords in Objective-C as well, but only |
123 | if they appear after a '@') */ | |
0e5921e8 ZW |
124 | RID_BOOL, RID_WCHAR, RID_CLASS, |
125 | RID_PUBLIC, RID_PRIVATE, RID_PROTECTED, | |
126 | RID_TEMPLATE, RID_NULL, RID_CATCH, | |
127 | RID_DELETE, RID_FALSE, RID_NAMESPACE, | |
c22cacf3 MS |
128 | RID_NEW, RID_OFFSETOF, RID_OPERATOR, |
129 | RID_THIS, RID_THROW, RID_TRUE, | |
130 | RID_TRY, RID_TYPENAME, RID_TYPEID, | |
b6baa67d | 131 | RID_USING, RID_CHAR16, RID_CHAR32, |
0e5921e8 ZW |
132 | |
133 | /* casts */ | |
134 | RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST, | |
135 | ||
cb68ec50 | 136 | /* C++ extensions */ |
b3908fcc | 137 | RID_BASES, RID_DIRECT_BASES, |
cb68ec50 PC |
138 | RID_HAS_NOTHROW_ASSIGN, RID_HAS_NOTHROW_CONSTRUCTOR, |
139 | RID_HAS_NOTHROW_COPY, RID_HAS_TRIVIAL_ASSIGN, | |
140 | RID_HAS_TRIVIAL_CONSTRUCTOR, RID_HAS_TRIVIAL_COPY, | |
141 | RID_HAS_TRIVIAL_DESTRUCTOR, RID_HAS_VIRTUAL_DESTRUCTOR, | |
142 | RID_IS_ABSTRACT, RID_IS_BASE_OF, | |
4daba884 | 143 | RID_IS_CLASS, RID_IS_CONVERTIBLE_TO, |
cb68ec50 | 144 | RID_IS_EMPTY, RID_IS_ENUM, |
b3908fcc JW |
145 | RID_IS_FINAL, RID_IS_LITERAL_TYPE, |
146 | RID_IS_POD, RID_IS_POLYMORPHIC, | |
147 | RID_IS_STD_LAYOUT, RID_IS_TRIVIAL, | |
148 | RID_IS_UNION, RID_UNDERLYING_TYPE, | |
cb68ec50 | 149 | |
b3908fcc | 150 | /* C++11 */ |
0a766368 | 151 | RID_CONSTEXPR, RID_DECLTYPE, RID_NOEXCEPT, RID_NULLPTR, RID_STATIC_ASSERT, |
218f0015 | 152 | |
1973201f NP |
153 | /* Objective-C ("AT" reserved words - they are only keywords when |
154 | they follow '@') */ | |
3a3589b4 | 155 | RID_AT_ENCODE, RID_AT_END, |
0e5921e8 | 156 | RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS, |
c37d8c30 | 157 | RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC, RID_AT_PACKAGE, |
c22cacf3 | 158 | RID_AT_PROTOCOL, RID_AT_SELECTOR, |
264fa2db | 159 | RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH, |
92902b1b | 160 | RID_AT_FINALLY, RID_AT_SYNCHRONIZED, |
668ea4b1 | 161 | RID_AT_OPTIONAL, RID_AT_REQUIRED, RID_AT_PROPERTY, |
da57d1b9 | 162 | RID_AT_SYNTHESIZE, RID_AT_DYNAMIC, |
264fa2db | 163 | RID_AT_INTERFACE, |
0e5921e8 ZW |
164 | RID_AT_IMPLEMENTATION, |
165 | ||
36c5e70a BE |
166 | /* Named address support, mapping the keyword to a particular named address |
167 | number. Named address space 0 is reserved for the generic address. If | |
168 | there are more than 254 named addresses, the addr_space_t type will need | |
169 | to be grown from an unsigned char to unsigned short. */ | |
170 | RID_ADDR_SPACE_0, /* generic address */ | |
171 | RID_ADDR_SPACE_1, | |
172 | RID_ADDR_SPACE_2, | |
173 | RID_ADDR_SPACE_3, | |
174 | RID_ADDR_SPACE_4, | |
175 | RID_ADDR_SPACE_5, | |
176 | RID_ADDR_SPACE_6, | |
177 | RID_ADDR_SPACE_7, | |
178 | RID_ADDR_SPACE_8, | |
179 | RID_ADDR_SPACE_9, | |
180 | RID_ADDR_SPACE_10, | |
181 | RID_ADDR_SPACE_11, | |
182 | RID_ADDR_SPACE_12, | |
183 | RID_ADDR_SPACE_13, | |
184 | RID_ADDR_SPACE_14, | |
185 | RID_ADDR_SPACE_15, | |
186 | ||
187 | RID_FIRST_ADDR_SPACE = RID_ADDR_SPACE_0, | |
188 | RID_LAST_ADDR_SPACE = RID_ADDR_SPACE_15, | |
189 | ||
0e5921e8 ZW |
190 | RID_MAX, |
191 | ||
192 | RID_FIRST_MODIFIER = RID_STATIC, | |
b8363a24 ZW |
193 | RID_LAST_MODIFIER = RID_ONEWAY, |
194 | ||
14c2101d JM |
195 | RID_FIRST_CXX0X = RID_CONSTEXPR, |
196 | RID_LAST_CXX0X = RID_STATIC_ASSERT, | |
b8363a24 ZW |
197 | RID_FIRST_AT = RID_AT_ENCODE, |
198 | RID_LAST_AT = RID_AT_IMPLEMENTATION, | |
199 | RID_FIRST_PQ = RID_IN, | |
668ea4b1 | 200 | RID_LAST_PQ = RID_ONEWAY, |
200290f2 NP |
201 | RID_FIRST_PATTR = RID_GETTER, |
202 | RID_LAST_PATTR = RID_NONATOMIC | |
f09f1de5 MM |
203 | }; |
204 | ||
b8363a24 | 205 | #define OBJC_IS_AT_KEYWORD(rid) \ |
3f75a254 JM |
206 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_AT && \ |
207 | (unsigned int) (rid) <= (unsigned int) RID_LAST_AT) | |
b8363a24 ZW |
208 | |
209 | #define OBJC_IS_PQ_KEYWORD(rid) \ | |
3f75a254 JM |
210 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PQ && \ |
211 | (unsigned int) (rid) <= (unsigned int) RID_LAST_PQ) | |
b8363a24 | 212 | |
668ea4b1 IS |
213 | #define OBJC_IS_PATTR_KEYWORD(rid) \ |
214 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PATTR && \ | |
215 | (unsigned int) (rid) <= (unsigned int) RID_LAST_PATTR) | |
216 | ||
1973201f NP |
217 | /* OBJC_IS_CXX_KEYWORD recognizes the 'CXX_OBJC' keywords (such as |
218 | 'class') which are shared in a subtle way between Objective-C and | |
219 | C++. When the lexer is lexing in Objective-C/Objective-C++, if it | |
220 | finds '@' followed by one of these identifiers (eg, '@class'), it | |
221 | recognizes the whole as an Objective-C keyword. If the identifier | |
222 | is found elsewhere, it follows the rules of the C/C++ language. | |
223 | */ | |
224 | #define OBJC_IS_CXX_KEYWORD(rid) \ | |
225 | (rid == RID_CLASS \ | |
226 | || rid == RID_PUBLIC || rid == RID_PROTECTED || rid == RID_PRIVATE \ | |
227 | || rid == RID_TRY || rid == RID_THROW || rid == RID_CATCH) | |
228 | ||
f09f1de5 MM |
229 | /* The elements of `ridpointers' are identifier nodes for the reserved |
230 | type names and storage classes. It is indexed by a RID_... value. */ | |
3f75a254 | 231 | extern GTY ((length ("(int) RID_MAX"))) tree *ridpointers; |
f09f1de5 | 232 | |
7f4edbcb BS |
233 | /* Standard named or nameless data types of the C compiler. */ |
234 | ||
235 | enum c_tree_index | |
236 | { | |
b6baa67d KVH |
237 | CTI_CHAR16_TYPE, |
238 | CTI_CHAR32_TYPE, | |
7f4edbcb | 239 | CTI_WCHAR_TYPE, |
207bf79d | 240 | CTI_UNDERLYING_WCHAR_TYPE, |
c5ab7f91 | 241 | CTI_WINT_TYPE, |
cd732418 JM |
242 | CTI_SIGNED_SIZE_TYPE, /* For format checking only. */ |
243 | CTI_UNSIGNED_PTRDIFF_TYPE, /* For format checking only. */ | |
b15ad712 JM |
244 | CTI_INTMAX_TYPE, |
245 | CTI_UINTMAX_TYPE, | |
7f4edbcb BS |
246 | CTI_WIDEST_INT_LIT_TYPE, |
247 | CTI_WIDEST_UINT_LIT_TYPE, | |
248 | ||
207bf79d JM |
249 | /* Types for <stdint.h>, that may not be defined on all |
250 | targets. */ | |
251 | CTI_SIG_ATOMIC_TYPE, | |
252 | CTI_INT8_TYPE, | |
253 | CTI_INT16_TYPE, | |
254 | CTI_INT32_TYPE, | |
255 | CTI_INT64_TYPE, | |
256 | CTI_UINT8_TYPE, | |
257 | CTI_UINT16_TYPE, | |
258 | CTI_UINT32_TYPE, | |
259 | CTI_UINT64_TYPE, | |
260 | CTI_INT_LEAST8_TYPE, | |
261 | CTI_INT_LEAST16_TYPE, | |
262 | CTI_INT_LEAST32_TYPE, | |
263 | CTI_INT_LEAST64_TYPE, | |
264 | CTI_UINT_LEAST8_TYPE, | |
265 | CTI_UINT_LEAST16_TYPE, | |
266 | CTI_UINT_LEAST32_TYPE, | |
267 | CTI_UINT_LEAST64_TYPE, | |
268 | CTI_INT_FAST8_TYPE, | |
269 | CTI_INT_FAST16_TYPE, | |
270 | CTI_INT_FAST32_TYPE, | |
271 | CTI_INT_FAST64_TYPE, | |
272 | CTI_UINT_FAST8_TYPE, | |
273 | CTI_UINT_FAST16_TYPE, | |
274 | CTI_UINT_FAST32_TYPE, | |
275 | CTI_UINT_FAST64_TYPE, | |
276 | CTI_INTPTR_TYPE, | |
277 | CTI_UINTPTR_TYPE, | |
278 | ||
7f4edbcb | 279 | CTI_CHAR_ARRAY_TYPE, |
b6baa67d KVH |
280 | CTI_CHAR16_ARRAY_TYPE, |
281 | CTI_CHAR32_ARRAY_TYPE, | |
7f4edbcb BS |
282 | CTI_WCHAR_ARRAY_TYPE, |
283 | CTI_INT_ARRAY_TYPE, | |
284 | CTI_STRING_TYPE, | |
285 | CTI_CONST_STRING_TYPE, | |
286 | ||
19552aa5 | 287 | /* Type for boolean expressions (bool in C++, int in C). */ |
de7df9eb JM |
288 | CTI_TRUTHVALUE_TYPE, |
289 | CTI_TRUTHVALUE_TRUE, | |
290 | CTI_TRUTHVALUE_FALSE, | |
291 | ||
7f4edbcb | 292 | CTI_DEFAULT_FUNCTION_TYPE, |
7f4edbcb | 293 | |
2ba84f36 | 294 | /* These are not types, but we have to look them up all the time. */ |
0ba8a114 NS |
295 | CTI_FUNCTION_NAME_DECL, |
296 | CTI_PRETTY_FUNCTION_NAME_DECL, | |
297 | CTI_C99_FUNCTION_NAME_DECL, | |
298 | CTI_SAVED_FUNCTION_NAME_DECLS, | |
c22cacf3 | 299 | |
ae499cce MM |
300 | CTI_VOID_ZERO, |
301 | ||
b2f97e4a MM |
302 | CTI_NULL, |
303 | ||
7f4edbcb BS |
304 | CTI_MAX |
305 | }; | |
306 | ||
5950c3c9 BE |
307 | #define C_CPP_HASHNODE(id) \ |
308 | (&(((struct c_common_identifier *) (id))->node)) | |
d75d71e0 ILT |
309 | #define C_RID_CODE(id) \ |
310 | ((enum rid) (((struct c_common_identifier *) (id))->node.rid_code)) | |
311 | #define C_SET_RID_CODE(id, code) \ | |
312 | (((struct c_common_identifier *) (id))->node.rid_code = (unsigned char) code) | |
2a967f3d NB |
313 | |
314 | /* Identifier part common to the C front ends. Inherits from | |
315 | tree_identifier, despite appearances. */ | |
d1b38208 | 316 | struct GTY(()) c_common_identifier { |
4f60111f | 317 | struct tree_common common; |
17211ab5 | 318 | struct cpp_hashnode node; |
2a967f3d NB |
319 | }; |
320 | ||
eea1139b ILT |
321 | /* An entry in the reserved keyword table. */ |
322 | ||
323 | struct c_common_resword | |
324 | { | |
325 | const char *const word; | |
326 | ENUM_BITFIELD(rid) const rid : 16; | |
327 | const unsigned int disable : 16; | |
328 | }; | |
329 | ||
34429675 JM |
330 | /* Extra cpp_ttype values for C++. */ |
331 | ||
332 | /* A token type for keywords, as opposed to ordinary identifiers. */ | |
333 | #define CPP_KEYWORD ((enum cpp_ttype) (N_TTYPES + 1)) | |
334 | ||
335 | /* A token type for template-ids. If a template-id is processed while | |
336 | parsing tentatively, it is replaced with a CPP_TEMPLATE_ID token; | |
337 | the value of the CPP_TEMPLATE_ID is whatever was returned by | |
338 | cp_parser_template_id. */ | |
339 | #define CPP_TEMPLATE_ID ((enum cpp_ttype) (CPP_KEYWORD + 1)) | |
340 | ||
341 | /* A token type for nested-name-specifiers. If a | |
342 | nested-name-specifier is processed while parsing tentatively, it is | |
343 | replaced with a CPP_NESTED_NAME_SPECIFIER token; the value of the | |
344 | CPP_NESTED_NAME_SPECIFIER is whatever was returned by | |
345 | cp_parser_nested_name_specifier_opt. */ | |
346 | #define CPP_NESTED_NAME_SPECIFIER ((enum cpp_ttype) (CPP_TEMPLATE_ID + 1)) | |
347 | ||
348 | /* A token type for pre-parsed C++0x decltype. */ | |
349 | #define CPP_DECLTYPE ((enum cpp_ttype) (CPP_NESTED_NAME_SPECIFIER + 1)) | |
350 | ||
351 | /* The number of token types, including C++-specific ones. */ | |
352 | #define N_CP_TTYPES ((int) (CPP_DECLTYPE + 1)) | |
353 | ||
eea1139b ILT |
354 | /* Disable mask. Keywords are disabled if (reswords[i].disable & |
355 | mask) is _true_. Thus for keywords which are present in all | |
356 | languages the disable field is zero. */ | |
357 | ||
358 | #define D_CONLY 0x001 /* C only (not in C++). */ | |
359 | #define D_CXXONLY 0x002 /* C++ only (not in C). */ | |
360 | #define D_C99 0x004 /* In C, C99 only. */ | |
361 | #define D_CXX0X 0x008 /* In C++, C++0X only. */ | |
362 | #define D_EXT 0x010 /* GCC extension. */ | |
363 | #define D_EXT89 0x020 /* GCC extension incorporated in C99. */ | |
364 | #define D_ASM 0x040 /* Disabled by -fno-asm. */ | |
365 | #define D_OBJC 0x080 /* In Objective C and neither C nor C++. */ | |
366 | #define D_CXX_OBJC 0x100 /* In Objective C, and C++, but not C. */ | |
367 | #define D_CXXWARN 0x200 /* In C warn with -Wcxx-compat. */ | |
368 | ||
369 | /* The reserved keyword table. */ | |
370 | extern const struct c_common_resword c_common_reswords[]; | |
371 | ||
372 | /* The number of items in the reserved keyword table. */ | |
373 | extern const unsigned int num_c_common_reswords; | |
374 | ||
b6baa67d KVH |
375 | #define char16_type_node c_global_trees[CTI_CHAR16_TYPE] |
376 | #define char32_type_node c_global_trees[CTI_CHAR32_TYPE] | |
7f4edbcb | 377 | #define wchar_type_node c_global_trees[CTI_WCHAR_TYPE] |
207bf79d | 378 | #define underlying_wchar_type_node c_global_trees[CTI_UNDERLYING_WCHAR_TYPE] |
c5ab7f91 | 379 | #define wint_type_node c_global_trees[CTI_WINT_TYPE] |
cd732418 JM |
380 | #define signed_size_type_node c_global_trees[CTI_SIGNED_SIZE_TYPE] |
381 | #define unsigned_ptrdiff_type_node c_global_trees[CTI_UNSIGNED_PTRDIFF_TYPE] | |
b15ad712 JM |
382 | #define intmax_type_node c_global_trees[CTI_INTMAX_TYPE] |
383 | #define uintmax_type_node c_global_trees[CTI_UINTMAX_TYPE] | |
7f4edbcb BS |
384 | #define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE] |
385 | #define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE] | |
386 | ||
207bf79d JM |
387 | #define sig_atomic_type_node c_global_trees[CTI_SIG_ATOMIC_TYPE] |
388 | #define int8_type_node c_global_trees[CTI_INT8_TYPE] | |
389 | #define int16_type_node c_global_trees[CTI_INT16_TYPE] | |
390 | #define int32_type_node c_global_trees[CTI_INT32_TYPE] | |
391 | #define int64_type_node c_global_trees[CTI_INT64_TYPE] | |
392 | #define uint8_type_node c_global_trees[CTI_UINT8_TYPE] | |
ac868f29 | 393 | #define c_uint16_type_node c_global_trees[CTI_UINT16_TYPE] |
207bf79d JM |
394 | #define c_uint32_type_node c_global_trees[CTI_UINT32_TYPE] |
395 | #define c_uint64_type_node c_global_trees[CTI_UINT64_TYPE] | |
396 | #define int_least8_type_node c_global_trees[CTI_INT_LEAST8_TYPE] | |
397 | #define int_least16_type_node c_global_trees[CTI_INT_LEAST16_TYPE] | |
398 | #define int_least32_type_node c_global_trees[CTI_INT_LEAST32_TYPE] | |
399 | #define int_least64_type_node c_global_trees[CTI_INT_LEAST64_TYPE] | |
400 | #define uint_least8_type_node c_global_trees[CTI_UINT_LEAST8_TYPE] | |
401 | #define uint_least16_type_node c_global_trees[CTI_UINT_LEAST16_TYPE] | |
402 | #define uint_least32_type_node c_global_trees[CTI_UINT_LEAST32_TYPE] | |
403 | #define uint_least64_type_node c_global_trees[CTI_UINT_LEAST64_TYPE] | |
404 | #define int_fast8_type_node c_global_trees[CTI_INT_FAST8_TYPE] | |
405 | #define int_fast16_type_node c_global_trees[CTI_INT_FAST16_TYPE] | |
406 | #define int_fast32_type_node c_global_trees[CTI_INT_FAST32_TYPE] | |
407 | #define int_fast64_type_node c_global_trees[CTI_INT_FAST64_TYPE] | |
408 | #define uint_fast8_type_node c_global_trees[CTI_UINT_FAST8_TYPE] | |
409 | #define uint_fast16_type_node c_global_trees[CTI_UINT_FAST16_TYPE] | |
410 | #define uint_fast32_type_node c_global_trees[CTI_UINT_FAST32_TYPE] | |
411 | #define uint_fast64_type_node c_global_trees[CTI_UINT_FAST64_TYPE] | |
412 | #define intptr_type_node c_global_trees[CTI_INTPTR_TYPE] | |
413 | #define uintptr_type_node c_global_trees[CTI_UINTPTR_TYPE] | |
414 | ||
de7df9eb JM |
415 | #define truthvalue_type_node c_global_trees[CTI_TRUTHVALUE_TYPE] |
416 | #define truthvalue_true_node c_global_trees[CTI_TRUTHVALUE_TRUE] | |
417 | #define truthvalue_false_node c_global_trees[CTI_TRUTHVALUE_FALSE] | |
19552aa5 | 418 | |
7f4edbcb | 419 | #define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE] |
b6baa67d KVH |
420 | #define char16_array_type_node c_global_trees[CTI_CHAR16_ARRAY_TYPE] |
421 | #define char32_array_type_node c_global_trees[CTI_CHAR32_ARRAY_TYPE] | |
7f4edbcb BS |
422 | #define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE] |
423 | #define int_array_type_node c_global_trees[CTI_INT_ARRAY_TYPE] | |
424 | #define string_type_node c_global_trees[CTI_STRING_TYPE] | |
425 | #define const_string_type_node c_global_trees[CTI_CONST_STRING_TYPE] | |
426 | ||
427 | #define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE] | |
7f4edbcb | 428 | |
0ba8a114 NS |
429 | #define function_name_decl_node c_global_trees[CTI_FUNCTION_NAME_DECL] |
430 | #define pretty_function_name_decl_node c_global_trees[CTI_PRETTY_FUNCTION_NAME_DECL] | |
431 | #define c99_function_name_decl_node c_global_trees[CTI_C99_FUNCTION_NAME_DECL] | |
432 | #define saved_function_name_decls c_global_trees[CTI_SAVED_FUNCTION_NAME_DECLS] | |
63ad61ed | 433 | |
ae499cce MM |
434 | /* A node for `((void) 0)'. */ |
435 | #define void_zero_node c_global_trees[CTI_VOID_ZERO] | |
436 | ||
b2f97e4a MM |
437 | /* The node for C++ `__null'. */ |
438 | #define null_node c_global_trees[CTI_NULL] | |
439 | ||
e2500fed | 440 | extern GTY(()) tree c_global_trees[CTI_MAX]; |
ab76ca54 | 441 | |
e0a21ab9 KH |
442 | /* In a RECORD_TYPE, a sorted array of the fields of the type, not a |
443 | tree for size reasons. */ | |
a9429e29 | 444 | struct GTY((variable_size)) sorted_fields_type { |
d07605f5 AP |
445 | int len; |
446 | tree GTY((length ("%h.len"))) elts[1]; | |
447 | }; | |
448 | ||
8f17b5c5 MM |
449 | /* Mark which labels are explicitly declared. |
450 | These may be shadowed, and may be referenced from nested functions. */ | |
451 | #define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label) | |
452 | ||
ab76ca54 MM |
453 | typedef enum c_language_kind |
454 | { | |
37fa72e9 NB |
455 | clk_c = 0, /* C90, C94 or C99 */ |
456 | clk_objc = 1, /* clk_c with ObjC features. */ | |
457 | clk_cxx = 2, /* ANSI/ISO C++ */ | |
458 | clk_objcxx = 3 /* clk_cxx with ObjC features. */ | |
21c7361e | 459 | } |
ab76ca54 MM |
460 | c_language_kind; |
461 | ||
37fa72e9 NB |
462 | /* To test for a specific language use c_language, defined by each |
463 | front end. For "ObjC features" or "not C++" use the macros. */ | |
464 | extern c_language_kind c_language; | |
465 | ||
15a15e8d RH |
466 | #define c_dialect_cxx() ((c_language & clk_cxx) != 0) |
467 | #define c_dialect_objc() ((c_language & clk_objc) != 0) | |
37fa72e9 | 468 | |
dd865ef6 SZ |
469 | /* The various name of operator that appears in error messages. */ |
470 | typedef enum ref_operator { | |
471 | /* NULL */ | |
472 | RO_NULL, | |
473 | /* array indexing */ | |
474 | RO_ARRAY_INDEXING, | |
475 | /* unary * */ | |
476 | RO_UNARY_STAR, | |
477 | /* -> */ | |
478 | RO_ARROW, | |
479 | /* implicit conversion */ | |
480 | RO_IMPLICIT_CONVERSION | |
481 | } ref_operator; | |
482 | ||
ae499cce MM |
483 | /* Information about a statement tree. */ |
484 | ||
d1b38208 | 485 | struct GTY(()) stmt_tree_s { |
38e01f9e NF |
486 | /* A stack of statement lists being collected. */ |
487 | VEC(tree,gc) *x_cur_stmt_list; | |
325c3691 | 488 | |
da7d8304 | 489 | /* In C++, Nonzero if we should treat statements as full |
04f7a48e | 490 | expressions. In particular, this variable is non-zero if at the |
ae499cce MM |
491 | end of a statement we should destroy any temporaries created |
492 | during that statement. Similarly, if, at the end of a block, we | |
493 | should destroy any local variables in this block. Normally, this | |
da7d8304 | 494 | variable is nonzero, since those are the normal semantics of |
ae499cce MM |
495 | C++. |
496 | ||
ae499cce | 497 | This flag has no effect in C. */ |
21c7361e | 498 | int stmts_are_full_exprs_p; |
ae499cce MM |
499 | }; |
500 | ||
501 | typedef struct stmt_tree_s *stmt_tree; | |
502 | ||
503 | /* Global state pertinent to the current function. Some C dialects | |
504 | extend this structure with additional fields. */ | |
505 | ||
d1b38208 | 506 | struct GTY(()) c_language_function { |
ae499cce MM |
507 | /* While we are parsing the function, this contains information |
508 | about the statement-tree that we are building. */ | |
509 | struct stmt_tree_s x_stmt_tree; | |
3797cb21 DS |
510 | |
511 | /* Vector of locally defined typedefs, for | |
512 | -Wunused-local-typedefs. */ | |
513 | VEC(tree,gc) *local_typedefs; | |
ae499cce MM |
514 | }; |
515 | ||
38e01f9e NF |
516 | #define stmt_list_stack (current_stmt_tree ()->x_cur_stmt_list) |
517 | ||
35fd3193 | 518 | /* When building a statement-tree, this is the current statement list |
38e01f9e NF |
519 | being collected. We define it in this convoluted way, rather than |
520 | using VEC_last, because it must be an lvalue. */ | |
521 | ||
522 | #define cur_stmt_list \ | |
523 | (*(VEC_address (tree, stmt_list_stack) \ | |
524 | + VEC_length (tree, stmt_list_stack) - 1)) | |
ae499cce | 525 | |
38e01f9e | 526 | #define building_stmt_list_p() (!VEC_empty (tree, stmt_list_stack)) |
8f17b5c5 MM |
527 | |
528 | /* Language-specific hooks. */ | |
529 | ||
4684cd27 MM |
530 | /* If non-NULL, this function is called after a precompile header file |
531 | is loaded. */ | |
532 | extern void (*lang_post_pch_load) (void); | |
533 | ||
f75fbaf7 ZW |
534 | extern void push_file_scope (void); |
535 | extern void pop_file_scope (void); | |
35b1a6fa | 536 | extern stmt_tree current_stmt_tree (void); |
325c3691 | 537 | extern tree push_stmt_list (void); |
325c3691 | 538 | extern tree pop_stmt_list (tree); |
35b1a6fa | 539 | extern tree add_stmt (tree); |
325c3691 | 540 | extern void push_cleanup (tree, tree, bool); |
953ff289 DN |
541 | extern tree pushdecl_top_level (tree); |
542 | extern tree pushdecl (tree); | |
32e8bb8e | 543 | extern tree build_modify_expr (location_t, tree, tree, enum tree_code, |
c2255bc4 | 544 | location_t, tree, tree); |
dd865ef6 | 545 | extern tree build_indirect_ref (location_t, tree, ref_operator); |
35b1a6fa | 546 | |
d07605f5 | 547 | extern int field_decl_cmp (const void *, const void *); |
c22cacf3 MS |
548 | extern void resort_sorted_fields (void *, void *, gt_pointer_operator, |
549 | void *); | |
58f9752a | 550 | extern bool has_c_linkage (const_tree decl); |
17211ab5 | 551 | \f |
4078b403 NB |
552 | /* Switches common to the C front ends. */ |
553 | ||
63973df3 NB |
554 | /* Nonzero means don't output line number information. */ |
555 | ||
556 | extern char flag_no_line_commands; | |
557 | ||
558 | /* Nonzero causes -E output not to be done, but directives such as | |
559 | #define that have side effects are still obeyed. */ | |
560 | ||
561 | extern char flag_no_output; | |
562 | ||
93d45d9e JM |
563 | /* Nonzero means dump macros in some fashion; contains the 'D', 'M', |
564 | 'N' or 'U' of the command line switch. */ | |
63973df3 NB |
565 | |
566 | extern char flag_dump_macros; | |
567 | ||
568 | /* Nonzero means pass #include lines through to the output. */ | |
569 | ||
570 | extern char flag_dump_includes; | |
571 | ||
c0d578e6 GK |
572 | /* Nonzero means process PCH files while preprocessing. */ |
573 | ||
574 | extern bool flag_pch_preprocess; | |
575 | ||
17211ab5 GK |
576 | /* The file name to which we should write a precompiled header, or |
577 | NULL if no header will be written in this compile. */ | |
578 | ||
579 | extern const char *pch_file; | |
580 | ||
3df89291 NB |
581 | /* Nonzero if an ISO standard was selected. It rejects macros in the |
582 | user's namespace. */ | |
17211ab5 | 583 | |
3df89291 NB |
584 | extern int flag_iso; |
585 | ||
c22cacf3 | 586 | /* Warn about #pragma directives that are not recognized. */ |
4078b403 | 587 | |
c22cacf3 | 588 | extern int warn_unknown_pragmas; /* Tri state variable. */ |
4078b403 | 589 | |
4078b403 NB |
590 | /* Warn about format/argument anomalies in calls to formatted I/O functions |
591 | (*printf, *scanf, strftime, strfmon, etc.). */ | |
ab76ca54 MM |
592 | |
593 | extern int warn_format; | |
594 | ||
b34c7881 | 595 | |
4078b403 | 596 | /* C/ObjC language option variables. */ |
b34c7881 | 597 | |
2683ed8d | 598 | |
4078b403 NB |
599 | /* Nonzero means allow type mismatches in conditional expressions; |
600 | just make their values `void'. */ | |
74ff4629 | 601 | |
4078b403 | 602 | extern int flag_cond_mismatch; |
6c36d76b | 603 | |
eaf299c6 | 604 | /* Nonzero means enable C89 Amendment 1 features. */ |
b8458e3e JM |
605 | |
606 | extern int flag_isoc94; | |
607 | ||
48b0b196 | 608 | /* Nonzero means use the ISO C99 (or C11) dialect of C. */ |
ab76ca54 MM |
609 | |
610 | extern int flag_isoc99; | |
611 | ||
48b0b196 | 612 | /* Nonzero means use the ISO C11 dialect of C. */ |
2778d766 | 613 | |
48b0b196 | 614 | extern int flag_isoc11; |
2778d766 | 615 | |
6614fd40 | 616 | /* Nonzero means that we have builtin functions, and main is an int. */ |
93e2382f JM |
617 | |
618 | extern int flag_hosted; | |
619 | ||
4078b403 NB |
620 | /* ObjC language option variables. */ |
621 | ||
622 | ||
4078b403 NB |
623 | /* Tells the compiler that this is a special run. Do not perform any |
624 | compiling, instead we are to test some platform dependent features | |
625 | and output a C header file with appropriate definitions. */ | |
626 | ||
627 | extern int print_struct_values; | |
628 | ||
abc88a08 | 629 | /* Tells the compiler what is the constant string class for ObjC. */ |
4078b403 | 630 | |
fd350d24 | 631 | extern const char *constant_string_class_name; |
4078b403 | 632 | |
4078b403 NB |
633 | |
634 | /* C++ language option variables. */ | |
635 | ||
636 | ||
4078b403 NB |
637 | /* Nonzero means generate separate instantiation control files and |
638 | juggle them at link time. */ | |
639 | ||
640 | extern int flag_use_repository; | |
641 | ||
c1ae8be5 SM |
642 | /* The supported C++ dialects. */ |
643 | ||
644 | enum cxx_dialect { | |
97e3ad20 | 645 | /* C++98 with TC1 */ |
c1ae8be5 | 646 | cxx98, |
97e3ad20 JM |
647 | cxx03 = cxx98, |
648 | /* C++11 */ | |
649 | cxx0x, | |
552b8185 JM |
650 | cxx11 = cxx0x, |
651 | /* C++1y (C++17?) */ | |
652 | cxx1y | |
c1ae8be5 | 653 | }; |
966541e3 | 654 | |
c1ae8be5 SM |
655 | /* The C++ dialect being used. C++98 is the default. */ |
656 | extern enum cxx_dialect cxx_dialect; | |
966541e3 | 657 | |
4078b403 NB |
658 | /* Maximum template instantiation depth. This limit is rather |
659 | arbitrary, but it exists to limit the time it takes to notice | |
17bc631c | 660 | excessively recursive template instantiations. */ |
4078b403 NB |
661 | |
662 | extern int max_tinst_depth; | |
ab76ca54 | 663 | |
7d882b83 ILT |
664 | /* Nonzero means that we should not issue warnings about problems that |
665 | occur when the code is executed, because the code being processed | |
666 | is not expected to be executed. This is set during parsing. This | |
667 | is used for cases like sizeof() and "0 ? a : b". This is a count, | |
668 | not a bool, because unexecuted expressions can nest. */ | |
25587e40 | 669 | |
7d882b83 | 670 | extern int c_inhibit_evaluation_warnings; |
25587e40 | 671 | |
148e4216 JM |
672 | /* Whether lexing has been completed, so subsequent preprocessor |
673 | errors should use the compiler's input_location. */ | |
674 | ||
675 | extern bool done_lexing; | |
676 | ||
ab76ca54 MM |
677 | /* C types are partitioned into three subsets: object, function, and |
678 | incomplete types. */ | |
679 | #define C_TYPE_OBJECT_P(type) \ | |
680 | (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type)) | |
681 | ||
682 | #define C_TYPE_INCOMPLETE_P(type) \ | |
683 | (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type) == 0) | |
684 | ||
685 | #define C_TYPE_FUNCTION_P(type) \ | |
686 | (TREE_CODE (type) == FUNCTION_TYPE) | |
687 | ||
688 | /* For convenience we define a single macro to identify the class of | |
689 | object or incomplete types. */ | |
690 | #define C_TYPE_OBJECT_OR_INCOMPLETE_P(type) \ | |
691 | (!C_TYPE_FUNCTION_P (type)) | |
692 | ||
c98cd5bf JM |
693 | struct visibility_flags |
694 | { | |
695 | unsigned inpragma : 1; /* True when in #pragma GCC visibility. */ | |
696 | unsigned inlines_hidden : 1; /* True when -finlineshidden in effect. */ | |
697 | }; | |
698 | ||
699 | /* Global visibility options. */ | |
700 | extern struct visibility_flags visibility_options; | |
701 | ||
349ae713 NB |
702 | /* Attribute table common to the C front ends. */ |
703 | extern const struct attribute_spec c_common_attribute_table[]; | |
704 | extern const struct attribute_spec c_common_format_attribute_table[]; | |
705 | ||
0ba8a114 | 706 | /* Pointer to function to lazily generate the VAR_DECL for __FUNCTION__ etc. |
2ce07e2d NS |
707 | ID is the identifier to use, NAME is the string. |
708 | TYPE_DEP indicates whether it depends on type of the function or not | |
709 | (i.e. __PRETTY_FUNCTION__). */ | |
710 | ||
c2255bc4 | 711 | extern tree (*make_fname_decl) (location_t, tree, int); |
35b1a6fa | 712 | |
bffad7f1 | 713 | /* In c-decl.c and cp/tree.c. FIXME. */ |
3ef0694c | 714 | extern void c_register_addr_space (const char *str, addr_space_t as); |
bffad7f1 SB |
715 | |
716 | /* In c-common.c. */ | |
5386338c | 717 | extern bool in_late_binary_op; |
36c5e70a | 718 | extern const char *c_addr_space_name (addr_space_t as); |
35b1a6fa | 719 | extern tree identifier_global_value (tree); |
3a636414 | 720 | extern tree c_linkage_bindings (tree); |
35b1a6fa AJ |
721 | extern void record_builtin_type (enum rid, const char *, tree); |
722 | extern tree build_void_list_node (void); | |
723 | extern void start_fname_decls (void); | |
724 | extern void finish_fname_decls (void); | |
725 | extern const char *fname_as_string (int); | |
3ba09659 | 726 | extern tree fname_decl (location_t, unsigned, tree); |
35b1a6fa | 727 | |
d19fa6b5 | 728 | extern int check_user_alignment (const_tree, bool); |
dde05067 | 729 | extern void check_function_arguments (const_tree, int, tree *); |
35b1a6fa AJ |
730 | extern void check_function_arguments_recurse (void (*) |
731 | (void *, tree, | |
732 | unsigned HOST_WIDE_INT), | |
733 | void *, tree, | |
734 | unsigned HOST_WIDE_INT); | |
83322951 | 735 | extern bool check_builtin_function_arguments (tree, int, tree *); |
94a0dd7b | 736 | extern void check_function_format (tree, int, tree *); |
35b1a6fa AJ |
737 | extern void set_Wformat (int); |
738 | extern tree handle_format_attribute (tree *, tree, tree, int, bool *); | |
739 | extern tree handle_format_arg_attribute (tree *, tree, tree, int, bool *); | |
564a129d | 740 | extern bool attribute_takes_identifier_p (const_tree); |
a4d8c676 | 741 | extern bool c_common_handle_option (size_t, const char *, int, int, location_t, |
5f20c657 | 742 | const struct cl_option_handlers *); |
acce4e77 | 743 | extern bool default_handle_c_option (size_t, const char *, int); |
35b1a6fa AJ |
744 | extern tree c_common_type_for_mode (enum machine_mode, int); |
745 | extern tree c_common_type_for_size (unsigned int, int); | |
ab22c1fa CF |
746 | extern tree c_common_fixed_point_type_for_size (unsigned int, unsigned int, |
747 | int, int); | |
12753674 | 748 | extern tree c_common_unsigned_type (tree); |
35b1a6fa AJ |
749 | extern tree c_common_signed_type (tree); |
750 | extern tree c_common_signed_or_unsigned_type (int, tree); | |
81f653d6 | 751 | extern void c_common_init_ts (void); |
38a4afee | 752 | extern tree c_build_bitfield_integer_type (unsigned HOST_WIDE_INT, int); |
0e3a99ae | 753 | extern bool unsafe_conversion_p (tree, tree, bool); |
58f9752a | 754 | extern bool decl_with_nonnull_addr_p (const_tree); |
928c19bb JM |
755 | extern tree c_fully_fold (tree, bool, bool *); |
756 | extern tree decl_constant_value_for_optimization (tree); | |
e5a94231 | 757 | extern tree c_wrap_maybe_const (tree, bool); |
928c19bb | 758 | extern tree c_save_expr (tree); |
ba47d38d | 759 | extern tree c_common_truthvalue_conversion (location_t, tree); |
35b1a6fa | 760 | extern void c_apply_type_quals_to_decl (int, tree); |
c2255bc4 AH |
761 | extern tree c_sizeof_or_alignof_type (location_t, tree, bool, int); |
762 | extern tree c_alignof_expr (location_t, tree); | |
7f4edbcb BS |
763 | /* Print an error message for invalid operands to arith operation CODE. |
764 | NOP_EXPR is used as a special case (see truthvalue_conversion). */ | |
ba47d38d | 765 | extern void binary_op_error (location_t, enum tree_code, tree, tree); |
35b1a6fa | 766 | extern tree fix_string_type (tree); |
35b1a6fa | 767 | extern void constant_expression_warning (tree); |
393eda6a | 768 | extern void constant_expression_error (tree); |
79bedddc | 769 | extern bool strict_aliasing_warning (tree, tree, tree); |
07231d4f | 770 | extern void warnings_for_convert_and_check (tree, tree, tree); |
35b1a6fa | 771 | extern tree convert_and_check (tree, tree); |
c2255bc4 | 772 | extern void overflow_warning (location_t, tree); |
fd4116f4 | 773 | extern bool warn_if_unused_value (const_tree, location_t); |
a243fb4a | 774 | extern void warn_logical_operator (location_t, enum tree_code, tree, |
ca409efd | 775 | enum tree_code, tree, enum tree_code, tree); |
a1e45ff0 | 776 | extern void check_main_parameter_types (tree decl); |
b2ca3702 | 777 | extern bool c_determine_visibility (tree); |
5bed876a | 778 | extern bool same_scalar_type_ignoring_signedness (tree, tree); |
6ec637a4 JJ |
779 | extern void mark_valid_location_for_stdc_pragma (bool); |
780 | extern bool valid_location_for_stdc_pragma_p (void); | |
781 | extern void set_float_const_decimal64 (void); | |
782 | extern void clear_float_const_decimal64 (void); | |
783 | extern bool float_const_decimal64_p (void); | |
ab76ca54 | 784 | |
a9aa2c3a NF |
785 | extern bool keyword_begins_type_specifier (enum rid); |
786 | extern bool keyword_is_storage_class_specifier (enum rid); | |
787 | extern bool keyword_is_type_qualifier (enum rid); | |
ba9e6dd5 | 788 | extern bool keyword_is_decl_specifier (enum rid); |
a9aa2c3a | 789 | |
c2255bc4 AH |
790 | #define c_sizeof(LOC, T) c_sizeof_or_alignof_type (LOC, T, true, 1) |
791 | #define c_alignof(LOC, T) c_sizeof_or_alignof_type (LOC, T, false, 1) | |
7f4edbcb | 792 | |
6715192c MLI |
793 | /* Subroutine of build_binary_op, used for certain operations. */ |
794 | extern tree shorten_binary_op (tree result_type, tree op0, tree op1, bool bitwise); | |
795 | ||
7f4edbcb BS |
796 | /* Subroutine of build_binary_op, used for comparison operations. |
797 | See if the operands have both been converted from subword integer types | |
798 | and, if so, perhaps change them both back to their original type. */ | |
35b1a6fa | 799 | extern tree shorten_compare (tree *, tree *, tree *, enum tree_code *); |
7f4edbcb | 800 | |
db3927fb | 801 | extern tree pointer_int_sum (location_t, enum tree_code, tree, tree); |
50e60bc3 ZW |
802 | |
803 | /* Add qualifiers to a type, in the fashion for C. */ | |
35b1a6fa | 804 | extern tree c_build_qualified_type (tree, int); |
50e60bc3 | 805 | |
7f4edbcb BS |
806 | /* Build tree nodes and builtin functions common to both C and C++ language |
807 | frontends. */ | |
35b1a6fa | 808 | extern void c_common_nodes_and_builtins (void); |
d3707adb | 809 | |
35b1a6fa | 810 | extern void disable_builtin_function (const char *); |
7d14c755 | 811 | |
3b2db49f MM |
812 | extern void set_compound_literal_name (tree decl); |
813 | ||
c2255bc4 | 814 | extern tree build_va_arg (location_t, tree, tree); |
7e8176d7 | 815 | |
c5fa0890 | 816 | extern const unsigned int c_family_lang_mask; |
7a9bf9a4 | 817 | extern unsigned int c_common_option_lang_mask (void); |
1ebe4b4f | 818 | extern void c_common_initialize_diagnostics (diagnostic_context *); |
7a9bf9a4 | 819 | extern bool c_common_complain_wrong_lang_p (const struct cl_option *); |
a75bfaa6 | 820 | extern void c_common_init_options_struct (struct gcc_options *); |
7a9bf9a4 | 821 | extern void c_common_init_options (unsigned int, struct cl_decoded_option *); |
35b1a6fa AJ |
822 | extern bool c_common_post_options (const char **); |
823 | extern bool c_common_init (void); | |
824 | extern void c_common_finish (void); | |
b37421c6 | 825 | extern void c_common_parse_file (void); |
4862826d | 826 | extern alias_set_type c_common_get_alias_set (tree); |
9649812a | 827 | extern void c_register_builtin_type (tree, const char*); |
58f9752a KG |
828 | extern bool c_promoting_integer_type_p (const_tree); |
829 | extern int self_promoting_args_p (const_tree); | |
12ea3302 | 830 | extern tree strip_pointer_operator (tree); |
ba992967 | 831 | extern tree strip_pointer_or_array_types (tree); |
c5ff069d | 832 | extern HOST_WIDE_INT c_common_to_target_charset (HOST_WIDE_INT); |
d7e7759d | 833 | |
d1bd0ded GK |
834 | /* This is the basic parsing function. */ |
835 | extern void c_parse_file (void); | |
d1bd0ded | 836 | |
d166d4c3 | 837 | extern void warn_for_omitted_condop (location_t, tree); |
c5ff069d | 838 | |
ae499cce MM |
839 | /* These macros provide convenient access to the various _STMT nodes. */ |
840 | ||
325c3691 RH |
841 | /* Nonzero if a given STATEMENT_LIST represents the outermost binding |
842 | if a statement expression. */ | |
843 | #define STATEMENT_LIST_STMT_EXPR(NODE) \ | |
844 | TREE_LANG_FLAG_1 (STATEMENT_LIST_CHECK (NODE)) | |
174283a3 RH |
845 | |
846 | /* Nonzero if a label has been added to the statement list. */ | |
847 | #define STATEMENT_LIST_HAS_LABEL(NODE) \ | |
848 | TREE_LANG_FLAG_3 (STATEMENT_LIST_CHECK (NODE)) | |
325c3691 | 849 | |
928c19bb JM |
850 | /* C_MAYBE_CONST_EXPR accessors. */ |
851 | #define C_MAYBE_CONST_EXPR_PRE(NODE) \ | |
852 | TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 0) | |
853 | #define C_MAYBE_CONST_EXPR_EXPR(NODE) \ | |
854 | TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 1) | |
855 | #define C_MAYBE_CONST_EXPR_INT_OPERANDS(NODE) \ | |
856 | TREE_LANG_FLAG_0 (C_MAYBE_CONST_EXPR_CHECK (NODE)) | |
857 | #define C_MAYBE_CONST_EXPR_NON_CONST(NODE) \ | |
858 | TREE_LANG_FLAG_1 (C_MAYBE_CONST_EXPR_CHECK (NODE)) | |
859 | #define EXPR_INT_CONST_OPERANDS(EXPR) \ | |
860 | (INTEGRAL_TYPE_P (TREE_TYPE (EXPR)) \ | |
861 | && (TREE_CODE (EXPR) == INTEGER_CST \ | |
862 | || (TREE_CODE (EXPR) == C_MAYBE_CONST_EXPR \ | |
863 | && C_MAYBE_CONST_EXPR_INT_OPERANDS (EXPR)))) | |
864 | ||
0a7394bc MM |
865 | /* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */ |
866 | #define DECL_C_BIT_FIELD(NODE) \ | |
867 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1) | |
868 | #define SET_DECL_C_BIT_FIELD(NODE) \ | |
869 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 1) | |
870 | #define CLEAR_DECL_C_BIT_FIELD(NODE) \ | |
871 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0) | |
872 | ||
c2255bc4 AH |
873 | extern tree do_case (location_t, tree, tree); |
874 | extern tree build_stmt (location_t, enum tree_code, ...); | |
fb52b50a | 875 | extern tree build_real_imag_expr (location_t, enum tree_code, tree); |
f2c5f623 | 876 | |
ab76ca54 MM |
877 | /* These functions must be defined by each front-end which implements |
878 | a variant of the C language. They are used in c-common.c. */ | |
879 | ||
c9f9eb5d | 880 | extern tree build_unary_op (location_t, enum tree_code, tree, int); |
ba47d38d | 881 | extern tree build_binary_op (location_t, enum tree_code, tree, tree, int); |
522ddfa2 | 882 | extern tree perform_integral_promotions (tree); |
ab76ca54 | 883 | |
d593cb3d MS |
884 | /* These functions must be defined by each front-end which implements |
885 | a variant of the C language. They are used by port files. */ | |
886 | ||
887 | extern tree default_conversion (tree); | |
888 | ||
ab76ca54 MM |
889 | /* Given two integer or real types, return the type for their sum. |
890 | Given two compatible ANSI C types, returns the merged type. */ | |
891 | ||
35b1a6fa | 892 | extern tree common_type (tree, tree); |
44835fdd | 893 | |
35b1a6fa | 894 | extern tree decl_constant_value (tree); |
56cb9733 | 895 | |
19552aa5 | 896 | /* Handle increment and decrement of boolean types. */ |
35b1a6fa | 897 | extern tree boolean_increment (enum tree_code, tree); |
19552aa5 | 898 | |
35b1a6fa | 899 | extern int case_compare (splay_tree_key, splay_tree_key); |
8f17b5c5 | 900 | |
c2255bc4 | 901 | extern tree c_add_case_label (location_t, splay_tree, tree, tree, tree, tree); |
8f17b5c5 | 902 | |
fbc315db | 903 | extern void c_do_switch_warnings (splay_tree, location_t, tree, tree); |
6de9cd9a | 904 | |
c2255bc4 | 905 | extern tree build_function_call (location_t, tree, tree); |
c70eaeaf | 906 | |
c2255bc4 AH |
907 | extern tree build_function_call_vec (location_t, tree, |
908 | VEC(tree,gc) *, VEC(tree,gc) *); | |
bbbbb16a | 909 | |
c2255bc4 | 910 | extern tree resolve_overloaded_builtin (location_t, tree, VEC(tree,gc) *); |
48ae6c13 | 911 | |
6a3799eb | 912 | extern tree finish_label_address_expr (tree, location_t); |
15b732b2 NB |
913 | |
914 | /* Same function prototype, but the C and C++ front ends have | |
915 | different implementations. Used in c-common.c. */ | |
35b1a6fa | 916 | extern tree lookup_label (tree); |
10e6657a | 917 | extern tree lookup_name (tree); |
1e4ae551 | 918 | extern bool lvalue_p (const_tree); |
15b732b2 | 919 | |
f83c7f63 | 920 | extern bool vector_targets_convertible_p (const_tree t1, const_tree t2); |
58f9752a | 921 | extern bool vector_types_convertible_p (const_tree t1, const_tree t2, bool emit_lax_note); |
9e1a8dd1 | 922 | extern tree c_build_vec_perm_expr (location_t, tree, tree, tree); |
cc27e657 | 923 | |
0fab64a3 | 924 | extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *); |
8f17b5c5 | 925 | |
35b1a6fa | 926 | extern void init_c_lex (void); |
81a75f0f | 927 | |
35b1a6fa | 928 | extern void c_cpp_builtins (cpp_reader *); |
ab442df7 | 929 | extern void c_cpp_builtins_optimize_pragma (cpp_reader *, tree, tree); |
59cc9210 SB |
930 | extern bool c_cpp_error (cpp_reader *, int, int, location_t, unsigned int, |
931 | const char *, va_list *) | |
932 | ATTRIBUTE_GCC_DIAG(6,0); | |
76c3e73e | 933 | |
7c475d11 JM |
934 | extern bool parse_optimize_options (tree, bool); |
935 | ||
731e8b38 MM |
936 | /* Positive if an implicit `extern "C"' scope has just been entered; |
937 | negative if such a scope has just been exited. */ | |
7876228d | 938 | extern GTY(()) int pending_lang_change; |
731e8b38 | 939 | |
0e5921e8 ZW |
940 | /* Information recorded about each file examined during compilation. */ |
941 | ||
942 | struct c_fileinfo | |
943 | { | |
944 | int time; /* Time spent in the file. */ | |
5d709b00 ZW |
945 | |
946 | /* Flags used only by C++. | |
947 | INTERFACE_ONLY nonzero means that we are in an "interface" section | |
948 | of the compiler. INTERFACE_UNKNOWN nonzero means we cannot trust | |
949 | the value of INTERFACE_ONLY. If INTERFACE_UNKNOWN is zero and | |
950 | INTERFACE_ONLY is zero, it means that we are responsible for | |
951 | exporting definitions that others might need. */ | |
952 | short interface_only; | |
0e5921e8 ZW |
953 | short interface_unknown; |
954 | }; | |
955 | ||
35b1a6fa AJ |
956 | struct c_fileinfo *get_fileinfo (const char *); |
957 | extern void dump_time_statistics (void); | |
958 | ||
959 | extern bool c_dump_tree (void *, tree); | |
960 | ||
3a5b9284 RH |
961 | extern void verify_sequence_points (tree); |
962 | ||
cf9e9959 EB |
963 | extern tree fold_offsetof_1 (tree); |
964 | extern tree fold_offsetof (tree); | |
ee8a6a3e | 965 | |
5ae9ba3e | 966 | /* Places where an lvalue, or modifiable lvalue, may be required. |
37dc0d8d | 967 | Used to select diagnostic messages in lvalue_error and |
5ae9ba3e MM |
968 | readonly_error. */ |
969 | enum lvalue_use { | |
970 | lv_assign, | |
971 | lv_increment, | |
972 | lv_decrement, | |
973 | lv_addressof, | |
974 | lv_asm | |
975 | }; | |
976 | ||
4816c593 | 977 | extern void readonly_error (tree, enum lvalue_use); |
7bd11157 | 978 | extern void lvalue_error (location_t, enum lvalue_use); |
7a6daeb0 | 979 | extern void invalid_indirection_error (location_t, tree, ref_operator); |
5ae9ba3e | 980 | |
aab038d5 RH |
981 | extern int complete_array_type (tree *, tree, bool); |
982 | ||
48ae6c13 RH |
983 | extern tree builtin_type_for_size (int, bool); |
984 | ||
30cd1c5d AS |
985 | extern void c_common_mark_addressable_vec (tree); |
986 | ||
ff6b6641 | 987 | extern void warn_array_subscript_with_type_char (tree); |
100d537d MLI |
988 | extern void warn_about_parentheses (enum tree_code, |
989 | enum tree_code, tree, | |
990 | enum tree_code, tree); | |
c616e51b | 991 | extern void warn_for_unused_label (tree label); |
c9f9eb5d | 992 | extern void warn_for_div_by_zero (location_t, tree divisor); |
ba47d38d | 993 | extern void warn_for_sign_compare (location_t, |
b8698a0f L |
994 | tree orig_op0, tree orig_op1, |
995 | tree op0, tree op1, | |
996 | tree result_type, | |
2d12797c | 997 | enum tree_code resultcode); |
c5ee1358 MM |
998 | extern void do_warn_double_promotion (tree, tree, tree, const char *, |
999 | location_t); | |
770e5a2e | 1000 | extern void set_underlying_type (tree); |
3797cb21 DS |
1001 | extern void record_locally_defined_typedef (tree); |
1002 | extern void maybe_record_typedef_use (tree); | |
1003 | extern void maybe_warn_unused_local_typedefs (void); | |
c166b898 ILT |
1004 | extern VEC(tree,gc) *make_tree_vector (void); |
1005 | extern void release_tree_vector (VEC(tree,gc) *); | |
1006 | extern VEC(tree,gc) *make_tree_vector_single (tree); | |
c12ff9d8 | 1007 | extern VEC(tree,gc) *make_tree_vector_from_list (tree); |
c166b898 | 1008 | extern VEC(tree,gc) *make_tree_vector_copy (const VEC(tree,gc) *); |
2a67bec2 | 1009 | |
7c34ced1 | 1010 | /* In c-gimplify.c */ |
6de9cd9a | 1011 | extern void c_genericize (tree); |
726a989a | 1012 | extern int c_gimplify_expr (tree *, gimple_seq *, gimple_seq *); |
c2255bc4 | 1013 | extern tree c_build_bind_expr (location_t, tree, tree); |
6de9cd9a | 1014 | |
c0d578e6 | 1015 | /* In c-pch.c */ |
35b1a6fa AJ |
1016 | extern void pch_init (void); |
1017 | extern int c_common_valid_pch (cpp_reader *pfile, const char *name, int fd); | |
1018 | extern void c_common_read_pch (cpp_reader *pfile, const char *name, int fd, | |
1019 | const char *orig); | |
1020 | extern void c_common_write_pch (void); | |
18c81520 | 1021 | extern void c_common_no_more_pch (void); |
bc4071dd | 1022 | extern void c_common_pch_pragma (cpp_reader *pfile, const char *); |
3fd30b88 GK |
1023 | |
1024 | /* In *-checksum.c */ | |
1025 | extern const unsigned char executable_checksum[16]; | |
c0d578e6 | 1026 | |
ab442df7 MM |
1027 | /* In c-cppbuiltin.c */ |
1028 | extern void builtin_define_std (const char *macro); | |
35b1a6fa AJ |
1029 | extern void builtin_define_with_value (const char *, const char *, int); |
1030 | extern void c_stddef_cpp_builtins (void); | |
1031 | extern void fe_file_change (const struct line_map *); | |
cfc93532 | 1032 | extern void c_parse_error (const char *, enum cpp_ttype, tree, unsigned char); |
9d10c9a9 NB |
1033 | |
1034 | /* In c-ppoutput.c */ | |
35b1a6fa AJ |
1035 | extern void init_pp_output (FILE *); |
1036 | extern void preprocess_file (cpp_reader *); | |
1037 | extern void pp_file_change (const struct line_map *); | |
8e9ea4d7 | 1038 | extern void pp_dir_change (cpp_reader *, const char *); |
104f8784 | 1039 | extern bool check_missing_format_attribute (tree, tree); |
17211ab5 | 1040 | |
953ff289 | 1041 | /* In c-omp.c */ |
c2255bc4 AH |
1042 | extern tree c_finish_omp_master (location_t, tree); |
1043 | extern tree c_finish_omp_critical (location_t, tree, tree); | |
1044 | extern tree c_finish_omp_ordered (location_t, tree); | |
1045 | extern void c_finish_omp_barrier (location_t); | |
20906c66 JJ |
1046 | extern tree c_finish_omp_atomic (location_t, enum tree_code, enum tree_code, |
1047 | tree, tree, tree, tree, tree); | |
c2255bc4 AH |
1048 | extern void c_finish_omp_flush (location_t); |
1049 | extern void c_finish_omp_taskwait (location_t); | |
20906c66 | 1050 | extern void c_finish_omp_taskyield (location_t); |
953ff289 | 1051 | extern tree c_finish_omp_for (location_t, tree, tree, tree, tree, tree, tree); |
c2255bc4 | 1052 | extern void c_split_parallel_clauses (location_t, tree, tree *, tree *); |
953ff289 DN |
1053 | extern enum omp_clause_default_kind c_omp_predetermined_sharing (tree); |
1054 | ||
1055 | /* Not in c-omp.c; provided by the front end. */ | |
1056 | extern bool c_omp_sharing_predetermined (tree); | |
1057 | extern tree c_omp_remap_decl (tree, bool); | |
b646ba3f | 1058 | extern void record_types_used_by_current_var_decl (tree); |
953ff289 | 1059 | |
56300785 JJ |
1060 | /* Return next tree in the chain for chain_next walking of tree nodes. */ |
1061 | static inline tree | |
1062 | c_tree_chain_next (tree t) | |
1063 | { | |
1064 | /* TREE_CHAIN of a type is TYPE_STUB_DECL, which is different | |
1065 | kind of object, never a long chain of nodes. Prefer | |
1066 | TYPE_NEXT_VARIANT for types. */ | |
1067 | if (CODE_CONTAINS_STRUCT (TREE_CODE (t), TS_TYPE_COMMON)) | |
1068 | return TYPE_NEXT_VARIANT (t); | |
1069 | /* Otherwise, if there is TREE_CHAIN, return it. */ | |
1070 | if (CODE_CONTAINS_STRUCT (TREE_CODE (t), TS_COMMON)) | |
1071 | return TREE_CHAIN (t); | |
1072 | return NULL; | |
1073 | } | |
1074 | ||
0a35513e AH |
1075 | /* Mask used by tm_stmt_attr. */ |
1076 | #define TM_STMT_ATTR_OUTER 2 | |
1077 | #define TM_STMT_ATTR_ATOMIC 4 | |
1078 | #define TM_STMT_ATTR_RELAXED 8 | |
1079 | ||
1080 | extern int parse_tm_stmt_attr (tree, int); | |
1081 | ||
1082 | /* Mask used by tm_attr_to_mask and tm_mask_to_attr. Note that these | |
1083 | are ordered specifically such that more restrictive attributes are | |
1084 | at lower bit positions. This fact is known by the C++ tm attribute | |
1085 | inheritance code such that least bit extraction (mask & -mask) results | |
1086 | in the most restrictive attribute. */ | |
1087 | #define TM_ATTR_SAFE 1 | |
1088 | #define TM_ATTR_CALLABLE 2 | |
1089 | #define TM_ATTR_PURE 4 | |
1090 | #define TM_ATTR_IRREVOCABLE 8 | |
1091 | #define TM_ATTR_MAY_CANCEL_OUTER 16 | |
1092 | ||
1093 | extern int tm_attr_to_mask (tree); | |
1094 | extern tree tm_mask_to_attr (int); | |
1095 | extern tree find_tm_attribute (tree); | |
1096 | ||
3ce4f9e4 ESR |
1097 | /* A suffix-identifier value doublet that represents user-defined literals |
1098 | for C++-0x. */ | |
1099 | struct GTY(()) tree_userdef_literal { | |
1100 | struct tree_base base; | |
1101 | tree suffix_id; | |
1102 | tree value; | |
1103 | tree num_string; | |
1104 | }; | |
1105 | ||
1106 | #define USERDEF_LITERAL_SUFFIX_ID(NODE) \ | |
1107 | (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->suffix_id) | |
1108 | ||
1109 | #define USERDEF_LITERAL_VALUE(NODE) \ | |
1110 | (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->value) | |
1111 | ||
1112 | #define USERDEF_LITERAL_NUM_STRING(NODE) \ | |
1113 | (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->num_string) | |
1114 | ||
1115 | #define USERDEF_LITERAL_TYPE(NODE) \ | |
1116 | (TREE_TYPE (USERDEF_LITERAL_VALUE (NODE))) | |
1117 | ||
1118 | extern tree build_userdef_literal (tree suffix_id, tree value, tree num_string); | |
1119 | ||
7edaa4d2 MG |
1120 | extern void convert_vector_to_pointer_for_subscript (location_t, tree*, tree); |
1121 | ||
88657302 | 1122 | #endif /* ! GCC_C_COMMON_H */ |