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7f4edbcb | 1 | /* Definitions for c-common.c. |
99dee823 | 2 | Copyright (C) 1987-2021 Free Software Foundation, Inc. |
7f4edbcb | 3 | |
1322177d | 4 | This file is part of GCC. |
7f4edbcb | 5 | |
1322177d LB |
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 | |
9dcd6f09 | 8 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 9 | version. |
7f4edbcb | 10 | |
1322177d LB |
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 | |
14 | for more details. | |
7f4edbcb BS |
15 | |
16 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
17 | along with GCC; see the file COPYING3. If not see |
18 | <http://www.gnu.org/licenses/>. */ | |
7f4edbcb | 19 | |
0e5921e8 ZW |
20 | #ifndef GCC_C_COMMON_H |
21 | #define GCC_C_COMMON_H | |
22 | ||
8f17b5c5 | 23 | #include "splay-tree.h" |
2a967f3d | 24 | #include "cpplib.h" |
40e23961 | 25 | #include "alias.h" |
532aafad | 26 | #include "tree.h" |
40e23961 | 27 | #include "fold-const.h" |
eece7fe5 | 28 | #include "wide-int-bitmask.h" |
8f17b5c5 | 29 | |
59cc9210 SB |
30 | /* In order for the format checking to accept the C frontend |
31 | diagnostic framework extensions, you must include this file before | |
718f9c0f | 32 | diagnostic-core.h, not after. The C front end formats are a subset of those |
59cc9210 SB |
33 | for C++, so they are the appropriate set to use in common code; |
34 | cp-tree.h overrides this for C++. */ | |
718f9c0f MLI |
35 | #if defined(GCC_DIAGNOSTIC_CORE_H) |
36 | #error \ | |
37 | In order for the format checking to accept the C front end diagnostic \ | |
38 | framework extensions, you must include this file before diagnostic-core.h \ | |
39 | never after. | |
40 | #endif | |
59cc9210 SB |
41 | #ifndef GCC_DIAG_STYLE |
42 | #define GCC_DIAG_STYLE __gcc_cdiag__ | |
43 | #endif | |
44 | #include "diagnostic-core.h" | |
45 | ||
f2c5f623 | 46 | /* Usage of TREE_LANG_FLAG_?: |
3af07c22 | 47 | 0: IDENTIFIER_MARKED (used by search routines). |
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, | |
267bac10 | 71 | RID_NORETURN, RID_ATOMIC, |
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, | |
6f762481 | 88 | RID_PROPATOMIC, RID_NONATOMIC, |
668ea4b1 | 89 | |
5e28fca0 IS |
90 | /* ObjC nullability support keywords that also can appear in the |
91 | property attribute context. These values should remain contiguous | |
92 | with the other property attributes. */ | |
93 | RID_NULL_UNSPECIFIED, RID_NULLABLE, RID_NONNULL, RID_NULL_RESETTABLE, | |
94 | ||
fa5da7de JM |
95 | /* C (reserved and imaginary types not implemented, so any use is a |
96 | syntax error) */ | |
97 | RID_IMAGINARY, | |
98 | ||
0e5921e8 ZW |
99 | /* C */ |
100 | RID_INT, RID_CHAR, RID_FLOAT, RID_DOUBLE, RID_VOID, | |
101 | RID_ENUM, RID_STRUCT, RID_UNION, RID_IF, RID_ELSE, | |
102 | RID_WHILE, RID_DO, RID_FOR, RID_SWITCH, RID_CASE, | |
103 | RID_DEFAULT, RID_BREAK, RID_CONTINUE, RID_RETURN, RID_GOTO, | |
104 | RID_SIZEOF, | |
105 | ||
106 | /* C extensions */ | |
107 | RID_ASM, RID_TYPEOF, RID_ALIGNOF, RID_ATTRIBUTE, RID_VA_ARG, | |
da5b307a | 108 | RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_CHOOSE_EXPR, |
f90e8e2e | 109 | RID_TYPES_COMPATIBLE_P, RID_BUILTIN_COMPLEX, RID_BUILTIN_SHUFFLE, |
d8fcab68 | 110 | RID_BUILTIN_CONVERTVECTOR, RID_BUILTIN_TGMATH, |
98f08eb8 | 111 | RID_BUILTIN_HAS_ATTRIBUTE, |
9a8ce21f | 112 | RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128, |
c65699ef JM |
113 | |
114 | /* TS 18661-3 keywords, in the same sequence as the TI_* values. */ | |
115 | RID_FLOAT16, | |
116 | RID_FLOATN_NX_FIRST = RID_FLOAT16, | |
117 | RID_FLOAT32, | |
118 | RID_FLOAT64, | |
119 | RID_FLOAT128, | |
120 | RID_FLOAT32X, | |
121 | RID_FLOAT64X, | |
122 | RID_FLOAT128X, | |
123 | #define CASE_RID_FLOATN_NX \ | |
124 | case RID_FLOAT16: case RID_FLOAT32: case RID_FLOAT64: case RID_FLOAT128: \ | |
125 | case RID_FLOAT32X: case RID_FLOAT64X: case RID_FLOAT128X | |
126 | ||
74893f25 | 127 | RID_FRACT, RID_ACCUM, RID_AUTO_TYPE, RID_BUILTIN_CALL_WITH_STATIC_CHAIN, |
0e5921e8 | 128 | |
1ee62b92 PG |
129 | /* "__GIMPLE", for the GIMPLE-parsing extension to the C frontend. */ |
130 | RID_GIMPLE, | |
131 | ||
132 | /* "__PHI", for parsing PHI function in GIMPLE FE. */ | |
133 | RID_PHI, | |
134 | ||
c2e84327 DM |
135 | /* "__RTL", for the RTL-parsing extension to the C frontend. */ |
136 | RID_RTL, | |
137 | ||
48b0b196 | 138 | /* C11 */ |
433cc7b0 | 139 | RID_ALIGNAS, RID_GENERIC, |
d19fa6b5 | 140 | |
eea1139b ILT |
141 | /* This means to warn that this is a C++ keyword, and then treat it |
142 | as a normal identifier. */ | |
143 | RID_CXX_COMPAT_WARN, | |
144 | ||
0a35513e AH |
145 | /* GNU transactional memory extension */ |
146 | RID_TRANSACTION_ATOMIC, RID_TRANSACTION_RELAXED, RID_TRANSACTION_CANCEL, | |
147 | ||
0ba8a114 NS |
148 | /* Too many ways of getting the name of a function as a string */ |
149 | RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME, | |
150 | ||
1973201f NP |
151 | /* C++ (some of these are keywords in Objective-C as well, but only |
152 | if they appear after a '@') */ | |
0e5921e8 ZW |
153 | RID_BOOL, RID_WCHAR, RID_CLASS, |
154 | RID_PUBLIC, RID_PRIVATE, RID_PROTECTED, | |
155 | RID_TEMPLATE, RID_NULL, RID_CATCH, | |
156 | RID_DELETE, RID_FALSE, RID_NAMESPACE, | |
c22cacf3 MS |
157 | RID_NEW, RID_OFFSETOF, RID_OPERATOR, |
158 | RID_THIS, RID_THROW, RID_TRUE, | |
159 | RID_TRY, RID_TYPENAME, RID_TYPEID, | |
b6baa67d | 160 | RID_USING, RID_CHAR16, RID_CHAR32, |
0e5921e8 ZW |
161 | |
162 | /* casts */ | |
163 | RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST, | |
164 | ||
cb68ec50 | 165 | /* C++ extensions */ |
e16f1cc7 JJ |
166 | RID_ADDRESSOF, RID_BASES, |
167 | RID_BUILTIN_LAUNDER, RID_DIRECT_BASES, | |
cb68ec50 PC |
168 | RID_HAS_NOTHROW_ASSIGN, RID_HAS_NOTHROW_CONSTRUCTOR, |
169 | RID_HAS_NOTHROW_COPY, RID_HAS_TRIVIAL_ASSIGN, | |
170 | RID_HAS_TRIVIAL_CONSTRUCTOR, RID_HAS_TRIVIAL_COPY, | |
342cfb3e | 171 | RID_HAS_TRIVIAL_DESTRUCTOR, RID_HAS_UNIQUE_OBJ_REPRESENTATIONS, |
896048cf | 172 | RID_HAS_VIRTUAL_DESTRUCTOR, RID_BUILTIN_BIT_CAST, |
af88f557 JJ |
173 | RID_IS_ABSTRACT, RID_IS_AGGREGATE, |
174 | RID_IS_BASE_OF, RID_IS_CLASS, | |
cb68ec50 | 175 | RID_IS_EMPTY, RID_IS_ENUM, |
b3908fcc JW |
176 | RID_IS_FINAL, RID_IS_LITERAL_TYPE, |
177 | RID_IS_POD, RID_IS_POLYMORPHIC, | |
971e17ff | 178 | RID_IS_SAME_AS, |
b3908fcc | 179 | RID_IS_STD_LAYOUT, RID_IS_TRIVIAL, |
dd5d5481 | 180 | RID_IS_TRIVIALLY_ASSIGNABLE, RID_IS_TRIVIALLY_CONSTRUCTIBLE, |
b752325e | 181 | RID_IS_TRIVIALLY_COPYABLE, |
b3908fcc | 182 | RID_IS_UNION, RID_UNDERLYING_TYPE, |
b42cc3ca | 183 | RID_IS_ASSIGNABLE, RID_IS_CONSTRUCTIBLE, |
9e2256dc | 184 | RID_IS_NOTHROW_ASSIGNABLE, RID_IS_NOTHROW_CONSTRUCTIBLE, |
cb68ec50 | 185 | |
b3908fcc | 186 | /* C++11 */ |
0a766368 | 187 | RID_CONSTEXPR, RID_DECLTYPE, RID_NOEXCEPT, RID_NULLPTR, RID_STATIC_ASSERT, |
218f0015 | 188 | |
4742dbe7 | 189 | /* C++20 */ |
f968ef9b | 190 | RID_CONSTINIT, RID_CONSTEVAL, |
4742dbe7 | 191 | |
2d91f79d TH |
192 | /* char8_t */ |
193 | RID_CHAR8, | |
194 | ||
971e17ff AS |
195 | /* C++ concepts */ |
196 | RID_CONCEPT, RID_REQUIRES, | |
197 | ||
41676a36 NS |
198 | /* C++ modules. */ |
199 | RID__MODULE, RID__IMPORT, RID__EXPORT, /* Internal tokens. */ | |
200 | ||
49789fd0 IS |
201 | /* C++ coroutines */ |
202 | RID_CO_AWAIT, RID_CO_YIELD, RID_CO_RETURN, | |
203 | ||
b8fd7909 JM |
204 | /* C++ transactional memory. */ |
205 | RID_ATOMIC_NOEXCEPT, RID_ATOMIC_CANCEL, RID_SYNCHRONIZED, | |
206 | ||
1973201f NP |
207 | /* Objective-C ("AT" reserved words - they are only keywords when |
208 | they follow '@') */ | |
3a3589b4 | 209 | RID_AT_ENCODE, RID_AT_END, |
0e5921e8 | 210 | RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS, |
c37d8c30 | 211 | RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC, RID_AT_PACKAGE, |
c22cacf3 | 212 | RID_AT_PROTOCOL, RID_AT_SELECTOR, |
264fa2db | 213 | RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH, |
92902b1b | 214 | RID_AT_FINALLY, RID_AT_SYNCHRONIZED, |
668ea4b1 | 215 | RID_AT_OPTIONAL, RID_AT_REQUIRED, RID_AT_PROPERTY, |
da57d1b9 | 216 | RID_AT_SYNTHESIZE, RID_AT_DYNAMIC, |
264fa2db | 217 | RID_AT_INTERFACE, |
0e5921e8 ZW |
218 | RID_AT_IMPLEMENTATION, |
219 | ||
36c5e70a BE |
220 | /* Named address support, mapping the keyword to a particular named address |
221 | number. Named address space 0 is reserved for the generic address. If | |
222 | there are more than 254 named addresses, the addr_space_t type will need | |
223 | to be grown from an unsigned char to unsigned short. */ | |
224 | RID_ADDR_SPACE_0, /* generic address */ | |
225 | RID_ADDR_SPACE_1, | |
226 | RID_ADDR_SPACE_2, | |
227 | RID_ADDR_SPACE_3, | |
228 | RID_ADDR_SPACE_4, | |
229 | RID_ADDR_SPACE_5, | |
230 | RID_ADDR_SPACE_6, | |
231 | RID_ADDR_SPACE_7, | |
232 | RID_ADDR_SPACE_8, | |
233 | RID_ADDR_SPACE_9, | |
234 | RID_ADDR_SPACE_10, | |
235 | RID_ADDR_SPACE_11, | |
236 | RID_ADDR_SPACE_12, | |
237 | RID_ADDR_SPACE_13, | |
238 | RID_ADDR_SPACE_14, | |
239 | RID_ADDR_SPACE_15, | |
240 | ||
241 | RID_FIRST_ADDR_SPACE = RID_ADDR_SPACE_0, | |
242 | RID_LAST_ADDR_SPACE = RID_ADDR_SPACE_15, | |
243 | ||
78a7c317 DD |
244 | /* __intN keywords. The _N_M here doesn't correspond to the intN |
245 | in the keyword; use the bitsize in int_n_t_data_t[M] for that. | |
246 | For example, if int_n_t_data_t[0].bitsize is 13, then RID_INT_N_0 | |
247 | is for __int13. */ | |
248 | ||
249 | /* Note that the range to use is RID_FIRST_INT_N through | |
250 | RID_FIRST_INT_N + NUM_INT_N_ENTS - 1 and c-parser.c has a list of | |
251 | all RID_INT_N_* in a case statement. */ | |
252 | ||
253 | RID_INT_N_0, | |
254 | RID_INT_N_1, | |
255 | RID_INT_N_2, | |
256 | RID_INT_N_3, | |
257 | ||
258 | RID_FIRST_INT_N = RID_INT_N_0, | |
259 | RID_LAST_INT_N = RID_INT_N_3, | |
260 | ||
0e5921e8 ZW |
261 | RID_MAX, |
262 | ||
263 | RID_FIRST_MODIFIER = RID_STATIC, | |
b8363a24 ZW |
264 | RID_LAST_MODIFIER = RID_ONEWAY, |
265 | ||
36a85135 JM |
266 | RID_FIRST_CXX11 = RID_CONSTEXPR, |
267 | RID_LAST_CXX11 = RID_STATIC_ASSERT, | |
4742dbe7 MP |
268 | RID_FIRST_CXX20 = RID_CONSTINIT, |
269 | RID_LAST_CXX20 = RID_CONSTINIT, | |
b8363a24 ZW |
270 | RID_FIRST_AT = RID_AT_ENCODE, |
271 | RID_LAST_AT = RID_AT_IMPLEMENTATION, | |
272 | RID_FIRST_PQ = RID_IN, | |
668ea4b1 | 273 | RID_LAST_PQ = RID_ONEWAY, |
200290f2 | 274 | RID_FIRST_PATTR = RID_GETTER, |
5e28fca0 | 275 | RID_LAST_PATTR = RID_NULL_RESETTABLE |
f09f1de5 MM |
276 | }; |
277 | ||
b8363a24 | 278 | #define OBJC_IS_AT_KEYWORD(rid) \ |
3f75a254 JM |
279 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_AT && \ |
280 | (unsigned int) (rid) <= (unsigned int) RID_LAST_AT) | |
b8363a24 ZW |
281 | |
282 | #define OBJC_IS_PQ_KEYWORD(rid) \ | |
3f75a254 JM |
283 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PQ && \ |
284 | (unsigned int) (rid) <= (unsigned int) RID_LAST_PQ) | |
b8363a24 | 285 | |
b642fca1 | 286 | /* Keywords permitted in an @property attribute context. */ |
668ea4b1 | 287 | #define OBJC_IS_PATTR_KEYWORD(rid) \ |
b642fca1 IS |
288 | ((((unsigned int) (rid) >= (unsigned int) RID_FIRST_PATTR && \ |
289 | (unsigned int) (rid) <= (unsigned int) RID_LAST_PATTR)) \ | |
290 | || rid == RID_CLASS) | |
668ea4b1 | 291 | |
1973201f NP |
292 | /* OBJC_IS_CXX_KEYWORD recognizes the 'CXX_OBJC' keywords (such as |
293 | 'class') which are shared in a subtle way between Objective-C and | |
294 | C++. When the lexer is lexing in Objective-C/Objective-C++, if it | |
295 | finds '@' followed by one of these identifiers (eg, '@class'), it | |
296 | recognizes the whole as an Objective-C keyword. If the identifier | |
297 | is found elsewhere, it follows the rules of the C/C++ language. | |
298 | */ | |
299 | #define OBJC_IS_CXX_KEYWORD(rid) \ | |
b8fd7909 | 300 | (rid == RID_CLASS || rid == RID_SYNCHRONIZED \ |
1973201f NP |
301 | || rid == RID_PUBLIC || rid == RID_PROTECTED || rid == RID_PRIVATE \ |
302 | || rid == RID_TRY || rid == RID_THROW || rid == RID_CATCH) | |
303 | ||
f09f1de5 MM |
304 | /* The elements of `ridpointers' are identifier nodes for the reserved |
305 | type names and storage classes. It is indexed by a RID_... value. */ | |
3f75a254 | 306 | extern GTY ((length ("(int) RID_MAX"))) tree *ridpointers; |
f09f1de5 | 307 | |
7f4edbcb BS |
308 | /* Standard named or nameless data types of the C compiler. */ |
309 | ||
310 | enum c_tree_index | |
311 | { | |
2d91f79d | 312 | CTI_CHAR8_TYPE, |
b6baa67d KVH |
313 | CTI_CHAR16_TYPE, |
314 | CTI_CHAR32_TYPE, | |
7f4edbcb | 315 | CTI_WCHAR_TYPE, |
207bf79d | 316 | CTI_UNDERLYING_WCHAR_TYPE, |
c5ab7f91 | 317 | CTI_WINT_TYPE, |
cd732418 JM |
318 | CTI_SIGNED_SIZE_TYPE, /* For format checking only. */ |
319 | CTI_UNSIGNED_PTRDIFF_TYPE, /* For format checking only. */ | |
b15ad712 JM |
320 | CTI_INTMAX_TYPE, |
321 | CTI_UINTMAX_TYPE, | |
7f4edbcb BS |
322 | CTI_WIDEST_INT_LIT_TYPE, |
323 | CTI_WIDEST_UINT_LIT_TYPE, | |
324 | ||
207bf79d JM |
325 | /* Types for <stdint.h>, that may not be defined on all |
326 | targets. */ | |
327 | CTI_SIG_ATOMIC_TYPE, | |
328 | CTI_INT8_TYPE, | |
329 | CTI_INT16_TYPE, | |
330 | CTI_INT32_TYPE, | |
331 | CTI_INT64_TYPE, | |
332 | CTI_UINT8_TYPE, | |
333 | CTI_UINT16_TYPE, | |
334 | CTI_UINT32_TYPE, | |
335 | CTI_UINT64_TYPE, | |
336 | CTI_INT_LEAST8_TYPE, | |
337 | CTI_INT_LEAST16_TYPE, | |
338 | CTI_INT_LEAST32_TYPE, | |
339 | CTI_INT_LEAST64_TYPE, | |
340 | CTI_UINT_LEAST8_TYPE, | |
341 | CTI_UINT_LEAST16_TYPE, | |
342 | CTI_UINT_LEAST32_TYPE, | |
343 | CTI_UINT_LEAST64_TYPE, | |
344 | CTI_INT_FAST8_TYPE, | |
345 | CTI_INT_FAST16_TYPE, | |
346 | CTI_INT_FAST32_TYPE, | |
347 | CTI_INT_FAST64_TYPE, | |
348 | CTI_UINT_FAST8_TYPE, | |
349 | CTI_UINT_FAST16_TYPE, | |
350 | CTI_UINT_FAST32_TYPE, | |
351 | CTI_UINT_FAST64_TYPE, | |
352 | CTI_INTPTR_TYPE, | |
353 | CTI_UINTPTR_TYPE, | |
354 | ||
7f4edbcb | 355 | CTI_CHAR_ARRAY_TYPE, |
2d91f79d | 356 | CTI_CHAR8_ARRAY_TYPE, |
b6baa67d KVH |
357 | CTI_CHAR16_ARRAY_TYPE, |
358 | CTI_CHAR32_ARRAY_TYPE, | |
7f4edbcb | 359 | CTI_WCHAR_ARRAY_TYPE, |
7f4edbcb BS |
360 | CTI_STRING_TYPE, |
361 | CTI_CONST_STRING_TYPE, | |
362 | ||
19552aa5 | 363 | /* Type for boolean expressions (bool in C++, int in C). */ |
de7df9eb JM |
364 | CTI_TRUTHVALUE_TYPE, |
365 | CTI_TRUTHVALUE_TRUE, | |
366 | CTI_TRUTHVALUE_FALSE, | |
367 | ||
7f4edbcb | 368 | CTI_DEFAULT_FUNCTION_TYPE, |
7f4edbcb | 369 | |
066c89d1 NS |
370 | CTI_NULL, |
371 | ||
2ba84f36 | 372 | /* These are not types, but we have to look them up all the time. */ |
0ba8a114 NS |
373 | CTI_FUNCTION_NAME_DECL, |
374 | CTI_PRETTY_FUNCTION_NAME_DECL, | |
375 | CTI_C99_FUNCTION_NAME_DECL, | |
c22cacf3 | 376 | |
066c89d1 NS |
377 | CTI_MODULE_HWM, |
378 | /* Below here entities change during compilation. */ | |
379 | ||
380 | CTI_SAVED_FUNCTION_NAME_DECLS, | |
b2f97e4a | 381 | |
7f4edbcb BS |
382 | CTI_MAX |
383 | }; | |
384 | ||
5950c3c9 BE |
385 | #define C_CPP_HASHNODE(id) \ |
386 | (&(((struct c_common_identifier *) (id))->node)) | |
d75d71e0 ILT |
387 | #define C_RID_CODE(id) \ |
388 | ((enum rid) (((struct c_common_identifier *) (id))->node.rid_code)) | |
389 | #define C_SET_RID_CODE(id, code) \ | |
390 | (((struct c_common_identifier *) (id))->node.rid_code = (unsigned char) code) | |
2a967f3d NB |
391 | |
392 | /* Identifier part common to the C front ends. Inherits from | |
393 | tree_identifier, despite appearances. */ | |
d1b38208 | 394 | struct GTY(()) c_common_identifier { |
4f60111f | 395 | struct tree_common common; |
17211ab5 | 396 | struct cpp_hashnode node; |
2a967f3d NB |
397 | }; |
398 | ||
eea1139b ILT |
399 | /* An entry in the reserved keyword table. */ |
400 | ||
401 | struct c_common_resword | |
402 | { | |
403 | const char *const word; | |
404 | ENUM_BITFIELD(rid) const rid : 16; | |
405 | const unsigned int disable : 16; | |
406 | }; | |
407 | ||
8fba1830 BRF |
408 | /* Mode used to build pointers (VOIDmode means ptr_mode). */ |
409 | ||
410 | extern machine_mode c_default_pointer_mode; | |
411 | ||
34429675 JM |
412 | /* Extra cpp_ttype values for C++. */ |
413 | ||
34429675 JM |
414 | /* A token type for template-ids. If a template-id is processed while |
415 | parsing tentatively, it is replaced with a CPP_TEMPLATE_ID token; | |
416 | the value of the CPP_TEMPLATE_ID is whatever was returned by | |
417 | cp_parser_template_id. */ | |
418 | #define CPP_TEMPLATE_ID ((enum cpp_ttype) (CPP_KEYWORD + 1)) | |
419 | ||
420 | /* A token type for nested-name-specifiers. If a | |
421 | nested-name-specifier is processed while parsing tentatively, it is | |
422 | replaced with a CPP_NESTED_NAME_SPECIFIER token; the value of the | |
423 | CPP_NESTED_NAME_SPECIFIER is whatever was returned by | |
424 | cp_parser_nested_name_specifier_opt. */ | |
425 | #define CPP_NESTED_NAME_SPECIFIER ((enum cpp_ttype) (CPP_TEMPLATE_ID + 1)) | |
426 | ||
427 | /* A token type for pre-parsed C++0x decltype. */ | |
428 | #define CPP_DECLTYPE ((enum cpp_ttype) (CPP_NESTED_NAME_SPECIFIER + 1)) | |
429 | ||
5f83e90b JM |
430 | /* A token type for pre-parsed primary-expression (lambda- or statement-). */ |
431 | #define CPP_PREPARSED_EXPR ((enum cpp_ttype) (CPP_DECLTYPE + 1)) | |
432 | ||
34429675 | 433 | /* The number of token types, including C++-specific ones. */ |
5f83e90b | 434 | #define N_CP_TTYPES ((int) (CPP_PREPARSED_EXPR + 1)) |
34429675 | 435 | |
eea1139b ILT |
436 | /* Disable mask. Keywords are disabled if (reswords[i].disable & |
437 | mask) is _true_. Thus for keywords which are present in all | |
438 | languages the disable field is zero. */ | |
439 | ||
2d91f79d TH |
440 | #define D_CONLY 0x0001 /* C only (not in C++). */ |
441 | #define D_CXXONLY 0x0002 /* C++ only (not in C). */ | |
442 | #define D_C99 0x0004 /* In C, C99 only. */ | |
443 | #define D_CXX11 0x0008 /* In C++, C++11 only. */ | |
444 | #define D_EXT 0x0010 /* GCC extension. */ | |
445 | #define D_EXT89 0x0020 /* GCC extension incorporated in C99. */ | |
446 | #define D_ASM 0x0040 /* Disabled by -fno-asm. */ | |
447 | #define D_OBJC 0x0080 /* In Objective C and neither C nor C++. */ | |
448 | #define D_CXX_OBJC 0x0100 /* In Objective C, and C++, but not C. */ | |
449 | #define D_CXXWARN 0x0200 /* In C warn with -Wcxx-compat. */ | |
450 | #define D_CXX_CONCEPTS 0x0400 /* In C++, only with concepts. */ | |
451 | #define D_TRANSMEM 0X0800 /* C++ transactional memory TS. */ | |
452 | #define D_CXX_CHAR8_T 0X1000 /* In C++, only with -fchar8_t. */ | |
4742dbe7 | 453 | #define D_CXX20 0x2000 /* In C++, C++20 only. */ |
49789fd0 | 454 | #define D_CXX_COROUTINES 0x4000 /* In C++, only with coroutines. */ |
41676a36 | 455 | #define D_CXX_MODULES 0x8000 /* In C++, only with modules. */ |
971e17ff AS |
456 | |
457 | #define D_CXX_CONCEPTS_FLAGS D_CXXONLY | D_CXX_CONCEPTS | |
2d91f79d | 458 | #define D_CXX_CHAR8_T_FLAGS D_CXXONLY | D_CXX_CHAR8_T |
41676a36 | 459 | #define D_CXX_MODULES_FLAGS (D_CXXONLY | D_CXX_MODULES) |
49789fd0 | 460 | #define D_CXX_COROUTINES_FLAGS (D_CXXONLY | D_CXX_COROUTINES) |
eea1139b ILT |
461 | |
462 | /* The reserved keyword table. */ | |
463 | extern const struct c_common_resword c_common_reswords[]; | |
464 | ||
465 | /* The number of items in the reserved keyword table. */ | |
466 | extern const unsigned int num_c_common_reswords; | |
467 | ||
2d91f79d | 468 | #define char8_type_node c_global_trees[CTI_CHAR8_TYPE] |
b6baa67d KVH |
469 | #define char16_type_node c_global_trees[CTI_CHAR16_TYPE] |
470 | #define char32_type_node c_global_trees[CTI_CHAR32_TYPE] | |
7f4edbcb | 471 | #define wchar_type_node c_global_trees[CTI_WCHAR_TYPE] |
207bf79d | 472 | #define underlying_wchar_type_node c_global_trees[CTI_UNDERLYING_WCHAR_TYPE] |
c5ab7f91 | 473 | #define wint_type_node c_global_trees[CTI_WINT_TYPE] |
cd732418 JM |
474 | #define signed_size_type_node c_global_trees[CTI_SIGNED_SIZE_TYPE] |
475 | #define unsigned_ptrdiff_type_node c_global_trees[CTI_UNSIGNED_PTRDIFF_TYPE] | |
b15ad712 JM |
476 | #define intmax_type_node c_global_trees[CTI_INTMAX_TYPE] |
477 | #define uintmax_type_node c_global_trees[CTI_UINTMAX_TYPE] | |
7f4edbcb BS |
478 | #define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE] |
479 | #define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE] | |
480 | ||
207bf79d JM |
481 | #define sig_atomic_type_node c_global_trees[CTI_SIG_ATOMIC_TYPE] |
482 | #define int8_type_node c_global_trees[CTI_INT8_TYPE] | |
483 | #define int16_type_node c_global_trees[CTI_INT16_TYPE] | |
484 | #define int32_type_node c_global_trees[CTI_INT32_TYPE] | |
485 | #define int64_type_node c_global_trees[CTI_INT64_TYPE] | |
486 | #define uint8_type_node c_global_trees[CTI_UINT8_TYPE] | |
ac868f29 | 487 | #define c_uint16_type_node c_global_trees[CTI_UINT16_TYPE] |
207bf79d JM |
488 | #define c_uint32_type_node c_global_trees[CTI_UINT32_TYPE] |
489 | #define c_uint64_type_node c_global_trees[CTI_UINT64_TYPE] | |
490 | #define int_least8_type_node c_global_trees[CTI_INT_LEAST8_TYPE] | |
491 | #define int_least16_type_node c_global_trees[CTI_INT_LEAST16_TYPE] | |
492 | #define int_least32_type_node c_global_trees[CTI_INT_LEAST32_TYPE] | |
493 | #define int_least64_type_node c_global_trees[CTI_INT_LEAST64_TYPE] | |
494 | #define uint_least8_type_node c_global_trees[CTI_UINT_LEAST8_TYPE] | |
495 | #define uint_least16_type_node c_global_trees[CTI_UINT_LEAST16_TYPE] | |
496 | #define uint_least32_type_node c_global_trees[CTI_UINT_LEAST32_TYPE] | |
497 | #define uint_least64_type_node c_global_trees[CTI_UINT_LEAST64_TYPE] | |
498 | #define int_fast8_type_node c_global_trees[CTI_INT_FAST8_TYPE] | |
499 | #define int_fast16_type_node c_global_trees[CTI_INT_FAST16_TYPE] | |
500 | #define int_fast32_type_node c_global_trees[CTI_INT_FAST32_TYPE] | |
501 | #define int_fast64_type_node c_global_trees[CTI_INT_FAST64_TYPE] | |
502 | #define uint_fast8_type_node c_global_trees[CTI_UINT_FAST8_TYPE] | |
503 | #define uint_fast16_type_node c_global_trees[CTI_UINT_FAST16_TYPE] | |
504 | #define uint_fast32_type_node c_global_trees[CTI_UINT_FAST32_TYPE] | |
505 | #define uint_fast64_type_node c_global_trees[CTI_UINT_FAST64_TYPE] | |
506 | #define intptr_type_node c_global_trees[CTI_INTPTR_TYPE] | |
507 | #define uintptr_type_node c_global_trees[CTI_UINTPTR_TYPE] | |
508 | ||
de7df9eb JM |
509 | #define truthvalue_type_node c_global_trees[CTI_TRUTHVALUE_TYPE] |
510 | #define truthvalue_true_node c_global_trees[CTI_TRUTHVALUE_TRUE] | |
511 | #define truthvalue_false_node c_global_trees[CTI_TRUTHVALUE_FALSE] | |
19552aa5 | 512 | |
7f4edbcb | 513 | #define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE] |
2d91f79d | 514 | #define char8_array_type_node c_global_trees[CTI_CHAR8_ARRAY_TYPE] |
b6baa67d KVH |
515 | #define char16_array_type_node c_global_trees[CTI_CHAR16_ARRAY_TYPE] |
516 | #define char32_array_type_node c_global_trees[CTI_CHAR32_ARRAY_TYPE] | |
7f4edbcb | 517 | #define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE] |
7f4edbcb BS |
518 | #define string_type_node c_global_trees[CTI_STRING_TYPE] |
519 | #define const_string_type_node c_global_trees[CTI_CONST_STRING_TYPE] | |
520 | ||
521 | #define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE] | |
7f4edbcb | 522 | |
0ba8a114 NS |
523 | #define function_name_decl_node c_global_trees[CTI_FUNCTION_NAME_DECL] |
524 | #define pretty_function_name_decl_node c_global_trees[CTI_PRETTY_FUNCTION_NAME_DECL] | |
525 | #define c99_function_name_decl_node c_global_trees[CTI_C99_FUNCTION_NAME_DECL] | |
526 | #define saved_function_name_decls c_global_trees[CTI_SAVED_FUNCTION_NAME_DECLS] | |
63ad61ed | 527 | |
b2f97e4a MM |
528 | /* The node for C++ `__null'. */ |
529 | #define null_node c_global_trees[CTI_NULL] | |
530 | ||
e2500fed | 531 | extern GTY(()) tree c_global_trees[CTI_MAX]; |
ab76ca54 | 532 | |
8f17b5c5 MM |
533 | /* Mark which labels are explicitly declared. |
534 | These may be shadowed, and may be referenced from nested functions. */ | |
535 | #define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label) | |
536 | ||
a79683d5 | 537 | enum c_language_kind |
ab76ca54 | 538 | { |
9f936c86 | 539 | clk_c = 0, /* C90, C94, C99, C11 or C2X */ |
37fa72e9 NB |
540 | clk_objc = 1, /* clk_c with ObjC features. */ |
541 | clk_cxx = 2, /* ANSI/ISO C++ */ | |
542 | clk_objcxx = 3 /* clk_cxx with ObjC features. */ | |
a79683d5 | 543 | }; |
ab76ca54 | 544 | |
37fa72e9 NB |
545 | /* To test for a specific language use c_language, defined by each |
546 | front end. For "ObjC features" or "not C++" use the macros. */ | |
547 | extern c_language_kind c_language; | |
548 | ||
15a15e8d RH |
549 | #define c_dialect_cxx() ((c_language & clk_cxx) != 0) |
550 | #define c_dialect_objc() ((c_language & clk_objc) != 0) | |
37fa72e9 | 551 | |
dd865ef6 | 552 | /* The various name of operator that appears in error messages. */ |
a79683d5 | 553 | enum ref_operator { |
dd865ef6 SZ |
554 | /* NULL */ |
555 | RO_NULL, | |
556 | /* array indexing */ | |
557 | RO_ARRAY_INDEXING, | |
558 | /* unary * */ | |
559 | RO_UNARY_STAR, | |
560 | /* -> */ | |
561 | RO_ARROW, | |
562 | /* implicit conversion */ | |
5e54f81d MG |
563 | RO_IMPLICIT_CONVERSION, |
564 | /* ->* */ | |
565 | RO_ARROW_STAR | |
a79683d5 | 566 | }; |
dd865ef6 | 567 | |
ae499cce MM |
568 | /* Information about a statement tree. */ |
569 | ||
d1b38208 | 570 | struct GTY(()) stmt_tree_s { |
38e01f9e | 571 | /* A stack of statement lists being collected. */ |
9771b263 | 572 | vec<tree, va_gc> *x_cur_stmt_list; |
325c3691 | 573 | |
da7d8304 | 574 | /* In C++, Nonzero if we should treat statements as full |
04f7a48e | 575 | expressions. In particular, this variable is non-zero if at the |
ae499cce MM |
576 | end of a statement we should destroy any temporaries created |
577 | during that statement. Similarly, if, at the end of a block, we | |
578 | should destroy any local variables in this block. Normally, this | |
da7d8304 | 579 | variable is nonzero, since those are the normal semantics of |
ae499cce MM |
580 | C++. |
581 | ||
ae499cce | 582 | This flag has no effect in C. */ |
21c7361e | 583 | int stmts_are_full_exprs_p; |
ae499cce MM |
584 | }; |
585 | ||
586 | typedef struct stmt_tree_s *stmt_tree; | |
587 | ||
588 | /* Global state pertinent to the current function. Some C dialects | |
589 | extend this structure with additional fields. */ | |
590 | ||
d1b38208 | 591 | struct GTY(()) c_language_function { |
ae499cce MM |
592 | /* While we are parsing the function, this contains information |
593 | about the statement-tree that we are building. */ | |
594 | struct stmt_tree_s x_stmt_tree; | |
3797cb21 DS |
595 | |
596 | /* Vector of locally defined typedefs, for | |
597 | -Wunused-local-typedefs. */ | |
9771b263 | 598 | vec<tree, va_gc> *local_typedefs; |
ae499cce MM |
599 | }; |
600 | ||
38e01f9e NF |
601 | #define stmt_list_stack (current_stmt_tree ()->x_cur_stmt_list) |
602 | ||
35fd3193 | 603 | /* When building a statement-tree, this is the current statement list |
9771b263 DN |
604 | being collected. */ |
605 | #define cur_stmt_list (stmt_list_stack->last ()) | |
38e01f9e | 606 | |
9771b263 | 607 | #define building_stmt_list_p() (stmt_list_stack && !stmt_list_stack->is_empty()) |
8f17b5c5 MM |
608 | |
609 | /* Language-specific hooks. */ | |
610 | ||
4684cd27 MM |
611 | /* If non-NULL, this function is called after a precompile header file |
612 | is loaded. */ | |
613 | extern void (*lang_post_pch_load) (void); | |
614 | ||
f75fbaf7 ZW |
615 | extern void push_file_scope (void); |
616 | extern void pop_file_scope (void); | |
35b1a6fa | 617 | extern stmt_tree current_stmt_tree (void); |
325c3691 | 618 | extern tree push_stmt_list (void); |
325c3691 | 619 | extern tree pop_stmt_list (tree); |
35b1a6fa | 620 | extern tree add_stmt (tree); |
325c3691 | 621 | extern void push_cleanup (tree, tree, bool); |
641da50a | 622 | |
32e8bb8e | 623 | extern tree build_modify_expr (location_t, tree, tree, enum tree_code, |
c2255bc4 | 624 | location_t, tree, tree); |
dd865ef6 | 625 | extern tree build_indirect_ref (location_t, tree, ref_operator); |
35b1a6fa | 626 | |
58f9752a | 627 | extern bool has_c_linkage (const_tree decl); |
1807ffc1 | 628 | extern bool c_decl_implicit (const_tree); |
17211ab5 | 629 | \f |
4078b403 NB |
630 | /* Switches common to the C front ends. */ |
631 | ||
63973df3 NB |
632 | /* Nonzero means don't output line number information. */ |
633 | ||
634 | extern char flag_no_line_commands; | |
635 | ||
636 | /* Nonzero causes -E output not to be done, but directives such as | |
637 | #define that have side effects are still obeyed. */ | |
638 | ||
639 | extern char flag_no_output; | |
640 | ||
93d45d9e JM |
641 | /* Nonzero means dump macros in some fashion; contains the 'D', 'M', |
642 | 'N' or 'U' of the command line switch. */ | |
63973df3 NB |
643 | |
644 | extern char flag_dump_macros; | |
645 | ||
646 | /* Nonzero means pass #include lines through to the output. */ | |
647 | ||
648 | extern char flag_dump_includes; | |
649 | ||
c0d578e6 GK |
650 | /* Nonzero means process PCH files while preprocessing. */ |
651 | ||
652 | extern bool flag_pch_preprocess; | |
653 | ||
17211ab5 GK |
654 | /* The file name to which we should write a precompiled header, or |
655 | NULL if no header will be written in this compile. */ | |
656 | ||
657 | extern const char *pch_file; | |
658 | ||
3df89291 NB |
659 | /* Nonzero if an ISO standard was selected. It rejects macros in the |
660 | user's namespace. */ | |
17211ab5 | 661 | |
3df89291 NB |
662 | extern int flag_iso; |
663 | ||
4078b403 | 664 | /* C/ObjC language option variables. */ |
b34c7881 | 665 | |
2683ed8d | 666 | |
4078b403 NB |
667 | /* Nonzero means allow type mismatches in conditional expressions; |
668 | just make their values `void'. */ | |
74ff4629 | 669 | |
4078b403 | 670 | extern int flag_cond_mismatch; |
6c36d76b | 671 | |
eaf299c6 | 672 | /* Nonzero means enable C89 Amendment 1 features. */ |
b8458e3e JM |
673 | |
674 | extern int flag_isoc94; | |
675 | ||
9f936c86 | 676 | /* Nonzero means use the ISO C99 (or later) dialect of C. */ |
ab76ca54 MM |
677 | |
678 | extern int flag_isoc99; | |
679 | ||
9f936c86 | 680 | /* Nonzero means use the ISO C11 (or later) dialect of C. */ |
2778d766 | 681 | |
48b0b196 | 682 | extern int flag_isoc11; |
2778d766 | 683 | |
9f936c86 JM |
684 | /* Nonzero means use the ISO C2X dialect of C. */ |
685 | ||
686 | extern int flag_isoc2x; | |
687 | ||
6614fd40 | 688 | /* Nonzero means that we have builtin functions, and main is an int. */ |
93e2382f JM |
689 | |
690 | extern int flag_hosted; | |
691 | ||
4078b403 NB |
692 | /* ObjC language option variables. */ |
693 | ||
694 | ||
4078b403 NB |
695 | /* Tells the compiler that this is a special run. Do not perform any |
696 | compiling, instead we are to test some platform dependent features | |
697 | and output a C header file with appropriate definitions. */ | |
698 | ||
699 | extern int print_struct_values; | |
700 | ||
abc88a08 | 701 | /* Tells the compiler what is the constant string class for ObjC. */ |
4078b403 | 702 | |
fd350d24 | 703 | extern const char *constant_string_class_name; |
4078b403 | 704 | |
4078b403 NB |
705 | |
706 | /* C++ language option variables. */ | |
707 | ||
a75f1574 JM |
708 | /* The reference version of the ABI for -Wabi. */ |
709 | ||
710 | extern int warn_abi_version; | |
4078b403 | 711 | |
62984918 | 712 | /* Return TRUE if one of {flag_abi_version,flag_abi_compat_version} is |
a75f1574 JM |
713 | less than N and the other is at least N. */ |
714 | #define abi_compat_version_crosses(N) \ | |
62984918 JM |
715 | (abi_version_at_least(N) \ |
716 | != (flag_abi_compat_version == 0 \ | |
717 | || flag_abi_compat_version >= (N))) | |
718 | ||
a75f1574 JM |
719 | /* Return TRUE if one of {flag_abi_version,warn_abi_version} is |
720 | less than N and the other is at least N, for use by -Wabi. */ | |
721 | #define abi_version_crosses(N) \ | |
722 | (abi_version_at_least(N) \ | |
723 | != (warn_abi_version == 0 \ | |
724 | || warn_abi_version >= (N))) | |
725 | ||
c1ae8be5 SM |
726 | /* The supported C++ dialects. */ |
727 | ||
728 | enum cxx_dialect { | |
129211bc | 729 | cxx_unset, |
97e3ad20 | 730 | /* C++98 with TC1 */ |
c1ae8be5 | 731 | cxx98, |
97e3ad20 JM |
732 | cxx03 = cxx98, |
733 | /* C++11 */ | |
734 | cxx0x, | |
552b8185 | 735 | cxx11 = cxx0x, |
028aee17 JM |
736 | /* C++14 */ |
737 | cxx14, | |
7b936140 | 738 | /* C++17 */ |
026a79f7 | 739 | cxx17, |
b04445d4 JM |
740 | /* C++20 */ |
741 | cxx20 | |
c1ae8be5 | 742 | }; |
966541e3 | 743 | |
c1ae8be5 SM |
744 | /* The C++ dialect being used. C++98 is the default. */ |
745 | extern enum cxx_dialect cxx_dialect; | |
966541e3 | 746 | |
4078b403 NB |
747 | /* Maximum template instantiation depth. This limit is rather |
748 | arbitrary, but it exists to limit the time it takes to notice | |
17bc631c | 749 | excessively recursive template instantiations. */ |
4078b403 NB |
750 | |
751 | extern int max_tinst_depth; | |
ab76ca54 | 752 | |
7d882b83 ILT |
753 | /* Nonzero means that we should not issue warnings about problems that |
754 | occur when the code is executed, because the code being processed | |
755 | is not expected to be executed. This is set during parsing. This | |
756 | is used for cases like sizeof() and "0 ? a : b". This is a count, | |
757 | not a bool, because unexecuted expressions can nest. */ | |
25587e40 | 758 | |
7d882b83 | 759 | extern int c_inhibit_evaluation_warnings; |
25587e40 | 760 | |
148e4216 JM |
761 | /* Whether lexing has been completed, so subsequent preprocessor |
762 | errors should use the compiler's input_location. */ | |
763 | ||
764 | extern bool done_lexing; | |
765 | ||
ab76ca54 MM |
766 | /* C types are partitioned into three subsets: object, function, and |
767 | incomplete types. */ | |
768 | #define C_TYPE_OBJECT_P(type) \ | |
769 | (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type)) | |
770 | ||
771 | #define C_TYPE_INCOMPLETE_P(type) \ | |
772 | (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type) == 0) | |
773 | ||
774 | #define C_TYPE_FUNCTION_P(type) \ | |
775 | (TREE_CODE (type) == FUNCTION_TYPE) | |
776 | ||
777 | /* For convenience we define a single macro to identify the class of | |
778 | object or incomplete types. */ | |
779 | #define C_TYPE_OBJECT_OR_INCOMPLETE_P(type) \ | |
780 | (!C_TYPE_FUNCTION_P (type)) | |
781 | ||
f486280c RS |
782 | /* Return true if TYPE is a vector type that should be subject to the GNU |
783 | vector extensions (as opposed to a vector type that is used only for | |
784 | the purposes of defining target-specific built-in functions). */ | |
785 | ||
786 | inline bool | |
787 | gnu_vector_type_p (const_tree type) | |
788 | { | |
789 | return TREE_CODE (type) == VECTOR_TYPE && !TYPE_INDIVISIBLE_P (type); | |
790 | } | |
791 | ||
c98cd5bf JM |
792 | struct visibility_flags |
793 | { | |
794 | unsigned inpragma : 1; /* True when in #pragma GCC visibility. */ | |
795 | unsigned inlines_hidden : 1; /* True when -finlineshidden in effect. */ | |
796 | }; | |
797 | ||
7a37fa90 MM |
798 | /* These enumerators are possible types of unsafe conversions. */ |
799 | enum conversion_safety { | |
800 | /* The conversion is safe. */ | |
801 | SAFE_CONVERSION = 0, | |
802 | /* Another type of conversion with problems. */ | |
803 | UNSAFE_OTHER, | |
731dbfc3 | 804 | /* Conversion between signed and unsigned integers. */ |
7a37fa90 MM |
805 | UNSAFE_SIGN, |
806 | /* Conversions that reduce the precision of reals including conversions | |
807 | from reals to integers. */ | |
808 | UNSAFE_REAL, | |
809 | /* Conversions from complex to reals or integers, that discard imaginary | |
810 | component. */ | |
811 | UNSAFE_IMAGINARY | |
812 | }; | |
49b0aa18 | 813 | |
c98cd5bf JM |
814 | /* Global visibility options. */ |
815 | extern struct visibility_flags visibility_options; | |
816 | ||
349ae713 NB |
817 | /* Attribute table common to the C front ends. */ |
818 | extern const struct attribute_spec c_common_attribute_table[]; | |
819 | extern const struct attribute_spec c_common_format_attribute_table[]; | |
820 | ||
0ba8a114 | 821 | /* Pointer to function to lazily generate the VAR_DECL for __FUNCTION__ etc. |
2ce07e2d NS |
822 | ID is the identifier to use, NAME is the string. |
823 | TYPE_DEP indicates whether it depends on type of the function or not | |
824 | (i.e. __PRETTY_FUNCTION__). */ | |
825 | ||
c2255bc4 | 826 | extern tree (*make_fname_decl) (location_t, tree, int); |
35b1a6fa | 827 | |
bffad7f1 | 828 | /* In c-decl.c and cp/tree.c. FIXME. */ |
3ef0694c | 829 | extern void c_register_addr_space (const char *str, addr_space_t as); |
bffad7f1 SB |
830 | |
831 | /* In c-common.c. */ | |
5386338c | 832 | extern bool in_late_binary_op; |
36c5e70a | 833 | extern const char *c_addr_space_name (addr_space_t as); |
35b1a6fa | 834 | extern tree identifier_global_value (tree); |
bdaf8be1 | 835 | extern tree identifier_global_tag (tree); |
ad1539d5 | 836 | extern bool names_builtin_p (const char *); |
3a636414 | 837 | extern tree c_linkage_bindings (tree); |
35b1a6fa AJ |
838 | extern void record_builtin_type (enum rid, const char *, tree); |
839 | extern tree build_void_list_node (void); | |
840 | extern void start_fname_decls (void); | |
841 | extern void finish_fname_decls (void); | |
842 | extern const char *fname_as_string (int); | |
3ba09659 | 843 | extern tree fname_decl (location_t, unsigned, tree); |
35b1a6fa | 844 | |
4c7bd361 | 845 | extern int check_user_alignment (const_tree, bool, bool); |
4227c9ad | 846 | extern bool check_function_arguments (location_t loc, const_tree, const_tree, |
2f687306 | 847 | int, tree *, vec<location_t> *); |
35b1a6fa AJ |
848 | extern void check_function_arguments_recurse (void (*) |
849 | (void *, tree, | |
850 | unsigned HOST_WIDE_INT), | |
851 | void *, tree, | |
852 | unsigned HOST_WIDE_INT); | |
79ce98bc | 853 | extern bool check_builtin_function_arguments (location_t, vec<location_t>, |
c6447c20 | 854 | tree, tree, int, tree *); |
1d249509 MS |
855 | extern void check_function_format (const_tree, tree, int, tree *, |
856 | vec<location_t> *); | |
81fea426 | 857 | extern bool attribute_fallthrough_p (tree); |
35b1a6fa AJ |
858 | extern tree handle_format_attribute (tree *, tree, tree, int, bool *); |
859 | extern tree handle_format_arg_attribute (tree *, tree, tree, int, bool *); | |
00abf86c MS |
860 | extern bool c_common_handle_option (size_t, const char *, HOST_WIDE_INT, int, |
861 | location_t, | |
5f20c657 | 862 | const struct cl_option_handlers *); |
acce4e77 | 863 | extern bool default_handle_c_option (size_t, const char *, int); |
ef4bddc2 | 864 | extern tree c_common_type_for_mode (machine_mode, int); |
35b1a6fa | 865 | extern tree c_common_type_for_size (unsigned int, int); |
ab22c1fa CF |
866 | extern tree c_common_fixed_point_type_for_size (unsigned int, unsigned int, |
867 | int, int); | |
12753674 | 868 | extern tree c_common_unsigned_type (tree); |
35b1a6fa AJ |
869 | extern tree c_common_signed_type (tree); |
870 | extern tree c_common_signed_or_unsigned_type (int, tree); | |
81f653d6 | 871 | extern void c_common_init_ts (void); |
38a4afee | 872 | extern tree c_build_bitfield_integer_type (unsigned HOST_WIDE_INT, int); |
d9637168 | 873 | extern enum conversion_safety unsafe_conversion_p (tree, tree, tree, bool); |
58f9752a | 874 | extern bool decl_with_nonnull_addr_p (const_tree); |
f9c59f7e | 875 | extern tree c_fully_fold (tree, bool, bool *, bool = false); |
e5a94231 | 876 | extern tree c_wrap_maybe_const (tree, bool); |
ba47d38d | 877 | extern tree c_common_truthvalue_conversion (location_t, tree); |
35b1a6fa | 878 | extern void c_apply_type_quals_to_decl (int, tree); |
296674db | 879 | extern tree c_sizeof_or_alignof_type (location_t, tree, bool, bool, int); |
c2255bc4 | 880 | extern tree c_alignof_expr (location_t, tree); |
7f4edbcb BS |
881 | /* Print an error message for invalid operands to arith operation CODE. |
882 | NOP_EXPR is used as a special case (see truthvalue_conversion). */ | |
745e411d | 883 | extern void binary_op_error (rich_location *, enum tree_code, tree, tree); |
35b1a6fa | 884 | extern tree fix_string_type (tree); |
68fca595 | 885 | extern tree convert_and_check (location_t, tree, tree); |
b2ca3702 | 886 | extern bool c_determine_visibility (tree); |
0af94e6f | 887 | extern bool vector_types_compatible_elements_p (tree, tree); |
6ec637a4 JJ |
888 | extern void mark_valid_location_for_stdc_pragma (bool); |
889 | extern bool valid_location_for_stdc_pragma_p (void); | |
890 | extern void set_float_const_decimal64 (void); | |
891 | extern void clear_float_const_decimal64 (void); | |
892 | extern bool float_const_decimal64_p (void); | |
ab76ca54 | 893 | |
a9aa2c3a NF |
894 | extern bool keyword_begins_type_specifier (enum rid); |
895 | extern bool keyword_is_storage_class_specifier (enum rid); | |
896 | extern bool keyword_is_type_qualifier (enum rid); | |
ba9e6dd5 | 897 | extern bool keyword_is_decl_specifier (enum rid); |
af63ba4b | 898 | extern unsigned max_align_t_align (void); |
e28d52cf | 899 | extern bool cxx_fundamental_alignment_p (unsigned); |
f04dda30 | 900 | extern bool pointer_to_zero_sized_aggr_p (tree); |
038b5cc0 MP |
901 | extern bool bool_promoted_to_int_p (tree); |
902 | extern tree fold_for_warn (tree); | |
903 | extern tree c_common_get_narrower (tree, int *); | |
54aa6b58 | 904 | extern bool get_attribute_operand (tree, unsigned HOST_WIDE_INT *); |
c6ef9d8d RB |
905 | extern void c_common_finalize_early_debug (void); |
906 | ||
a9aa2c3a | 907 | |
296674db JM |
908 | #define c_sizeof(LOC, T) c_sizeof_or_alignof_type (LOC, T, true, false, 1) |
909 | #define c_alignof(LOC, T) c_sizeof_or_alignof_type (LOC, T, false, false, 1) | |
7f4edbcb | 910 | |
6715192c MLI |
911 | /* Subroutine of build_binary_op, used for certain operations. */ |
912 | extern tree shorten_binary_op (tree result_type, tree op0, tree op1, bool bitwise); | |
913 | ||
7f4edbcb BS |
914 | /* Subroutine of build_binary_op, used for comparison operations. |
915 | See if the operands have both been converted from subword integer types | |
916 | and, if so, perhaps change them both back to their original type. */ | |
393e8e8b MP |
917 | extern tree shorten_compare (location_t, tree *, tree *, tree *, |
918 | enum tree_code *); | |
7f4edbcb | 919 | |
fd9b0f32 PC |
920 | extern tree pointer_int_sum (location_t, enum tree_code, tree, tree, |
921 | bool = true); | |
50e60bc3 ZW |
922 | |
923 | /* Add qualifiers to a type, in the fashion for C. */ | |
e9e32ee6 | 924 | extern tree c_build_qualified_type (tree, int, tree = NULL_TREE, size_t = 0); |
50e60bc3 | 925 | |
7f4edbcb BS |
926 | /* Build tree nodes and builtin functions common to both C and C++ language |
927 | frontends. */ | |
35b1a6fa | 928 | extern void c_common_nodes_and_builtins (void); |
d3707adb | 929 | |
35b1a6fa | 930 | extern void disable_builtin_function (const char *); |
7d14c755 | 931 | |
3b2db49f MM |
932 | extern void set_compound_literal_name (tree decl); |
933 | ||
c2255bc4 | 934 | extern tree build_va_arg (location_t, tree, tree); |
7e8176d7 | 935 | |
c5fa0890 | 936 | extern const unsigned int c_family_lang_mask; |
7a9bf9a4 | 937 | extern unsigned int c_common_option_lang_mask (void); |
d723bb7c | 938 | extern void c_common_diagnostics_set_defaults (diagnostic_context *); |
7a9bf9a4 | 939 | extern bool c_common_complain_wrong_lang_p (const struct cl_option *); |
a75bfaa6 | 940 | extern void c_common_init_options_struct (struct gcc_options *); |
7a9bf9a4 | 941 | extern void c_common_init_options (unsigned int, struct cl_decoded_option *); |
35b1a6fa AJ |
942 | extern bool c_common_post_options (const char **); |
943 | extern bool c_common_init (void); | |
944 | extern void c_common_finish (void); | |
b37421c6 | 945 | extern void c_common_parse_file (void); |
1a817418 | 946 | extern FILE *get_dump_info (int, dump_flags_t *); |
4862826d | 947 | extern alias_set_type c_common_get_alias_set (tree); |
9649812a | 948 | extern void c_register_builtin_type (tree, const char*); |
58f9752a | 949 | extern bool c_promoting_integer_type_p (const_tree); |
e3455240 | 950 | extern bool self_promoting_args_p (const_tree); |
12ea3302 | 951 | extern tree strip_pointer_operator (tree); |
ba992967 | 952 | extern tree strip_pointer_or_array_types (tree); |
c5ff069d | 953 | extern HOST_WIDE_INT c_common_to_target_charset (HOST_WIDE_INT); |
d7e7759d | 954 | |
d1bd0ded GK |
955 | /* This is the basic parsing function. */ |
956 | extern void c_parse_file (void); | |
d1bd0ded | 957 | |
d7438551 AH |
958 | extern void c_parse_final_cleanups (void); |
959 | ||
ae499cce MM |
960 | /* These macros provide convenient access to the various _STMT nodes. */ |
961 | ||
325c3691 RH |
962 | /* Nonzero if a given STATEMENT_LIST represents the outermost binding |
963 | if a statement expression. */ | |
964 | #define STATEMENT_LIST_STMT_EXPR(NODE) \ | |
965 | TREE_LANG_FLAG_1 (STATEMENT_LIST_CHECK (NODE)) | |
174283a3 RH |
966 | |
967 | /* Nonzero if a label has been added to the statement list. */ | |
968 | #define STATEMENT_LIST_HAS_LABEL(NODE) \ | |
969 | TREE_LANG_FLAG_3 (STATEMENT_LIST_CHECK (NODE)) | |
325c3691 | 970 | |
928c19bb JM |
971 | /* C_MAYBE_CONST_EXPR accessors. */ |
972 | #define C_MAYBE_CONST_EXPR_PRE(NODE) \ | |
973 | TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 0) | |
974 | #define C_MAYBE_CONST_EXPR_EXPR(NODE) \ | |
975 | TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 1) | |
976 | #define C_MAYBE_CONST_EXPR_INT_OPERANDS(NODE) \ | |
977 | TREE_LANG_FLAG_0 (C_MAYBE_CONST_EXPR_CHECK (NODE)) | |
978 | #define C_MAYBE_CONST_EXPR_NON_CONST(NODE) \ | |
979 | TREE_LANG_FLAG_1 (C_MAYBE_CONST_EXPR_CHECK (NODE)) | |
980 | #define EXPR_INT_CONST_OPERANDS(EXPR) \ | |
981 | (INTEGRAL_TYPE_P (TREE_TYPE (EXPR)) \ | |
982 | && (TREE_CODE (EXPR) == INTEGER_CST \ | |
983 | || (TREE_CODE (EXPR) == C_MAYBE_CONST_EXPR \ | |
984 | && C_MAYBE_CONST_EXPR_INT_OPERANDS (EXPR)))) | |
985 | ||
0a7394bc MM |
986 | /* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */ |
987 | #define DECL_C_BIT_FIELD(NODE) \ | |
988 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1) | |
989 | #define SET_DECL_C_BIT_FIELD(NODE) \ | |
990 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 1) | |
991 | #define CLEAR_DECL_C_BIT_FIELD(NODE) \ | |
992 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0) | |
993 | ||
7c30b12a PC |
994 | /* True if the decl was an unnamed bitfield. */ |
995 | #define DECL_UNNAMED_BIT_FIELD(NODE) \ | |
996 | (DECL_C_BIT_FIELD (NODE) && !DECL_NAME (NODE)) | |
997 | ||
c2255bc4 AH |
998 | extern tree do_case (location_t, tree, tree); |
999 | extern tree build_stmt (location_t, enum tree_code, ...); | |
fb52b50a | 1000 | extern tree build_real_imag_expr (location_t, enum tree_code, tree); |
f2c5f623 | 1001 | |
ab76ca54 MM |
1002 | /* These functions must be defined by each front-end which implements |
1003 | a variant of the C language. They are used in c-common.c. */ | |
1004 | ||
e51fbec3 | 1005 | extern tree build_unary_op (location_t, enum tree_code, tree, bool); |
30af3a2b | 1006 | extern tree build_binary_op (location_t, enum tree_code, tree, tree, bool); |
522ddfa2 | 1007 | extern tree perform_integral_promotions (tree); |
ab76ca54 | 1008 | |
d593cb3d MS |
1009 | /* These functions must be defined by each front-end which implements |
1010 | a variant of the C language. They are used by port files. */ | |
1011 | ||
1012 | extern tree default_conversion (tree); | |
1013 | ||
ab76ca54 MM |
1014 | /* Given two integer or real types, return the type for their sum. |
1015 | Given two compatible ANSI C types, returns the merged type. */ | |
1016 | ||
35b1a6fa | 1017 | extern tree common_type (tree, tree); |
44835fdd | 1018 | |
35b1a6fa | 1019 | extern tree decl_constant_value (tree); |
56cb9733 | 1020 | |
19552aa5 | 1021 | /* Handle increment and decrement of boolean types. */ |
35b1a6fa | 1022 | extern tree boolean_increment (enum tree_code, tree); |
19552aa5 | 1023 | |
35b1a6fa | 1024 | extern int case_compare (splay_tree_key, splay_tree_key); |
8f17b5c5 | 1025 | |
c280b7ee | 1026 | extern tree c_add_case_label (location_t, splay_tree, tree, tree, tree); |
058f0b9e | 1027 | extern bool c_switch_covers_all_cases_p (splay_tree, tree); |
cba079f3 | 1028 | extern bool c_block_may_fallthru (const_tree); |
8f17b5c5 | 1029 | |
c2255bc4 | 1030 | extern tree build_function_call (location_t, tree, tree); |
c70eaeaf | 1031 | |
81e5eca8 | 1032 | extern tree build_function_call_vec (location_t, vec<location_t>, tree, |
c6447c20 RS |
1033 | vec<tree, va_gc> *, vec<tree, va_gc> *, |
1034 | tree = NULL_TREE); | |
bbbbb16a | 1035 | |
9771b263 | 1036 | extern tree resolve_overloaded_builtin (location_t, tree, vec<tree, va_gc> *); |
48ae6c13 | 1037 | |
6a3799eb | 1038 | extern tree finish_label_address_expr (tree, location_t); |
15b732b2 NB |
1039 | |
1040 | /* Same function prototype, but the C and C++ front ends have | |
1041 | different implementations. Used in c-common.c. */ | |
35b1a6fa | 1042 | extern tree lookup_label (tree); |
10e6657a | 1043 | extern tree lookup_name (tree); |
1e4ae551 | 1044 | extern bool lvalue_p (const_tree); |
15b732b2 | 1045 | |
f83c7f63 | 1046 | extern bool vector_targets_convertible_p (const_tree t1, const_tree t2); |
58f9752a | 1047 | extern bool vector_types_convertible_p (const_tree t1, const_tree t2, bool emit_lax_note); |
bedc293e | 1048 | extern tree c_build_vec_perm_expr (location_t, tree, tree, tree, bool = true); |
d8fcab68 | 1049 | extern tree c_build_vec_convert (location_t, tree, location_t, tree, bool = true); |
cc27e657 | 1050 | |
35b1a6fa | 1051 | extern void init_c_lex (void); |
81a75f0f | 1052 | |
35b1a6fa | 1053 | extern void c_cpp_builtins (cpp_reader *); |
ab442df7 | 1054 | extern void c_cpp_builtins_optimize_pragma (cpp_reader *, tree, tree); |
c24300ba DM |
1055 | extern bool c_cpp_diagnostic (cpp_reader *, enum cpp_diagnostic_level, |
1056 | enum cpp_warning_reason, rich_location *, | |
1057 | const char *, va_list *) | |
8a645150 | 1058 | ATTRIBUTE_GCC_DIAG(5,0); |
1d00f8c8 | 1059 | extern int c_common_has_attribute (cpp_reader *, bool); |
ad1539d5 | 1060 | extern int c_common_has_builtin (cpp_reader *); |
76c3e73e | 1061 | |
7c475d11 JM |
1062 | extern bool parse_optimize_options (tree, bool); |
1063 | ||
731e8b38 MM |
1064 | /* Positive if an implicit `extern "C"' scope has just been entered; |
1065 | negative if such a scope has just been exited. */ | |
7876228d | 1066 | extern GTY(()) int pending_lang_change; |
731e8b38 | 1067 | |
0e5921e8 ZW |
1068 | /* Information recorded about each file examined during compilation. */ |
1069 | ||
1070 | struct c_fileinfo | |
1071 | { | |
1072 | int time; /* Time spent in the file. */ | |
5d709b00 ZW |
1073 | |
1074 | /* Flags used only by C++. | |
1075 | INTERFACE_ONLY nonzero means that we are in an "interface" section | |
1076 | of the compiler. INTERFACE_UNKNOWN nonzero means we cannot trust | |
1077 | the value of INTERFACE_ONLY. If INTERFACE_UNKNOWN is zero and | |
1078 | INTERFACE_ONLY is zero, it means that we are responsible for | |
1079 | exporting definitions that others might need. */ | |
1080 | short interface_only; | |
0e5921e8 ZW |
1081 | short interface_unknown; |
1082 | }; | |
1083 | ||
35b1a6fa AJ |
1084 | struct c_fileinfo *get_fileinfo (const char *); |
1085 | extern void dump_time_statistics (void); | |
1086 | ||
1087 | extern bool c_dump_tree (void *, tree); | |
1088 | ||
3a5b9284 RH |
1089 | extern void verify_sequence_points (tree); |
1090 | ||
79e7b1fe JJ |
1091 | extern tree fold_offsetof (tree, tree = size_type_node, |
1092 | tree_code ctx = ERROR_MARK); | |
ee8a6a3e | 1093 | |
aab038d5 | 1094 | extern int complete_array_type (tree *, tree, bool); |
6d900107 | 1095 | extern void complete_flexible_array_elts (tree); |
aab038d5 | 1096 | |
48ae6c13 RH |
1097 | extern tree builtin_type_for_size (int, bool); |
1098 | ||
30cd1c5d AS |
1099 | extern void c_common_mark_addressable_vec (tree); |
1100 | ||
770e5a2e | 1101 | extern void set_underlying_type (tree); |
56898e43 | 1102 | extern bool user_facing_original_type_p (const_tree); |
040d18b6 | 1103 | extern void record_types_used_by_current_var_decl (tree); |
9771b263 DN |
1104 | extern vec<tree, va_gc> *make_tree_vector (void); |
1105 | extern void release_tree_vector (vec<tree, va_gc> *); | |
1106 | extern vec<tree, va_gc> *make_tree_vector_single (tree); | |
1107 | extern vec<tree, va_gc> *make_tree_vector_from_list (tree); | |
f1644724 | 1108 | extern vec<tree, va_gc> *make_tree_vector_from_ctor (tree); |
9771b263 | 1109 | extern vec<tree, va_gc> *make_tree_vector_copy (const vec<tree, va_gc> *); |
2a67bec2 | 1110 | |
793c625f MG |
1111 | /* Used for communication between c_common_type_for_mode and |
1112 | c_register_builtin_type. */ | |
1113 | extern GTY(()) tree registered_builtin_types; | |
1114 | ||
15c98b2e ES |
1115 | /* Read SOURCE_DATE_EPOCH from environment to have a deterministic |
1116 | timestamp to replace embedded current dates to get reproducible | |
1117 | results. Returns -1 if SOURCE_DATE_EPOCH is not defined. */ | |
1118 | extern time_t cb_get_source_date_epoch (cpp_reader *pfile); | |
1119 | ||
1120 | /* The value (as a unix timestamp) corresponds to date | |
1121 | "Dec 31 9999 23:59:59 UTC", which is the latest date that __DATE__ and | |
1122 | __TIME__ can store. */ | |
1123 | #define MAX_SOURCE_DATE_EPOCH HOST_WIDE_INT_C (253402300799) | |
1124 | ||
cb18fd07 DM |
1125 | /* Callback for libcpp for offering spelling suggestions for misspelled |
1126 | directives. */ | |
1127 | extern const char *cb_get_suggestion (cpp_reader *, const char *, | |
1128 | const char *const *); | |
1129 | ||
88fa5555 DM |
1130 | extern GTY(()) string_concat_db *g_string_concat_db; |
1131 | ||
e5106e27 DM |
1132 | class substring_loc; |
1133 | extern const char *c_get_substring_location (const substring_loc &substr_loc, | |
1134 | location_t *out_loc); | |
88fa5555 | 1135 | |
cba079f3 SL |
1136 | /* In c-gimplify.c. */ |
1137 | typedef struct bc_state | |
1138 | { | |
1139 | tree bc_label[2]; | |
1140 | } bc_state_t; | |
1141 | extern void save_bc_state (bc_state_t *); | |
1142 | extern void restore_bc_state (bc_state_t *); | |
1143 | extern tree c_genericize_control_stmt (tree *, int *, void *, | |
1144 | walk_tree_fn, walk_tree_lh); | |
6de9cd9a | 1145 | extern void c_genericize (tree); |
726a989a | 1146 | extern int c_gimplify_expr (tree *, gimple_seq *, gimple_seq *); |
c2255bc4 | 1147 | extern tree c_build_bind_expr (location_t, tree, tree); |
6de9cd9a | 1148 | |
de67c4c3 DM |
1149 | /* In c-lex.c. */ |
1150 | extern enum cpp_ttype | |
1151 | conflict_marker_get_final_tok_kind (enum cpp_ttype tok1_kind); | |
1152 | ||
c0d578e6 | 1153 | /* In c-pch.c */ |
35b1a6fa | 1154 | extern void pch_init (void); |
1efcb8c6 | 1155 | extern void pch_cpp_save_state (void); |
35b1a6fa AJ |
1156 | extern int c_common_valid_pch (cpp_reader *pfile, const char *name, int fd); |
1157 | extern void c_common_read_pch (cpp_reader *pfile, const char *name, int fd, | |
1158 | const char *orig); | |
1159 | extern void c_common_write_pch (void); | |
18c81520 | 1160 | extern void c_common_no_more_pch (void); |
bc4071dd | 1161 | extern void c_common_pch_pragma (cpp_reader *pfile, const char *); |
3fd30b88 GK |
1162 | |
1163 | /* In *-checksum.c */ | |
1164 | extern const unsigned char executable_checksum[16]; | |
c0d578e6 | 1165 | |
ab442df7 MM |
1166 | /* In c-cppbuiltin.c */ |
1167 | extern void builtin_define_std (const char *macro); | |
35b1a6fa | 1168 | extern void builtin_define_with_value (const char *, const char *, int); |
7049e4eb CB |
1169 | extern void builtin_define_with_int_value (const char *, HOST_WIDE_INT); |
1170 | extern void builtin_define_type_sizeof (const char *, tree); | |
35b1a6fa | 1171 | extern void c_stddef_cpp_builtins (void); |
0e50b624 | 1172 | extern void fe_file_change (const line_map_ordinary *); |
32129a17 DM |
1173 | extern void c_parse_error (const char *, enum cpp_ttype, tree, unsigned char, |
1174 | rich_location *richloc); | |
9d10c9a9 NB |
1175 | |
1176 | /* In c-ppoutput.c */ | |
35b1a6fa AJ |
1177 | extern void init_pp_output (FILE *); |
1178 | extern void preprocess_file (cpp_reader *); | |
0e50b624 | 1179 | extern void pp_file_change (const line_map_ordinary *); |
8e9ea4d7 | 1180 | extern void pp_dir_change (cpp_reader *, const char *); |
104f8784 | 1181 | extern bool check_missing_format_attribute (tree, tree); |
17211ab5 | 1182 | |
953ff289 | 1183 | /* In c-omp.c */ |
eece7fe5 | 1184 | typedef wide_int_bitmask omp_clause_mask; |
acd15a28 | 1185 | |
8848828b | 1186 | #define OMP_CLAUSE_MASK_1 omp_clause_mask (1) |
acf0174b JJ |
1187 | |
1188 | enum c_omp_clause_split | |
1189 | { | |
1190 | C_OMP_CLAUSE_SPLIT_TARGET = 0, | |
1191 | C_OMP_CLAUSE_SPLIT_TEAMS, | |
1192 | C_OMP_CLAUSE_SPLIT_DISTRIBUTE, | |
1193 | C_OMP_CLAUSE_SPLIT_PARALLEL, | |
1194 | C_OMP_CLAUSE_SPLIT_FOR, | |
1195 | C_OMP_CLAUSE_SPLIT_SIMD, | |
1196 | C_OMP_CLAUSE_SPLIT_COUNT, | |
d9a6bd32 | 1197 | C_OMP_CLAUSE_SPLIT_SECTIONS = C_OMP_CLAUSE_SPLIT_FOR, |
554a530f JJ |
1198 | C_OMP_CLAUSE_SPLIT_TASKLOOP = C_OMP_CLAUSE_SPLIT_FOR, |
1199 | C_OMP_CLAUSE_SPLIT_LOOP = C_OMP_CLAUSE_SPLIT_FOR | |
acf0174b JJ |
1200 | }; |
1201 | ||
77886428 CP |
1202 | enum c_omp_region_type |
1203 | { | |
1204 | C_ORT_OMP = 1 << 0, | |
5e9d6aa4 JK |
1205 | C_ORT_ACC = 1 << 1, |
1206 | C_ORT_DECLARE_SIMD = 1 << 2, | |
1d793c34 | 1207 | C_ORT_OMP_DECLARE_SIMD = C_ORT_OMP | C_ORT_DECLARE_SIMD |
77886428 CP |
1208 | }; |
1209 | ||
c2255bc4 | 1210 | extern tree c_finish_omp_master (location_t, tree); |
28567c40 | 1211 | extern tree c_finish_omp_taskgroup (location_t, tree, tree); |
d9a6bd32 JJ |
1212 | extern tree c_finish_omp_critical (location_t, tree, tree, tree); |
1213 | extern tree c_finish_omp_ordered (location_t, tree, tree); | |
c2255bc4 | 1214 | extern void c_finish_omp_barrier (location_t); |
20906c66 | 1215 | extern tree c_finish_omp_atomic (location_t, enum tree_code, enum tree_code, |
28567c40 JJ |
1216 | tree, tree, tree, tree, tree, bool, |
1217 | enum omp_memory_order, bool = false); | |
1218 | extern bool c_omp_depend_t_p (tree); | |
1219 | extern void c_finish_omp_depobj (location_t, tree, enum omp_clause_depend_kind, | |
1220 | tree); | |
1221 | extern void c_finish_omp_flush (location_t, int); | |
c2255bc4 | 1222 | extern void c_finish_omp_taskwait (location_t); |
20906c66 | 1223 | extern void c_finish_omp_taskyield (location_t); |
acf0174b | 1224 | extern tree c_finish_omp_for (location_t, enum tree_code, tree, tree, tree, |
28567c40 | 1225 | tree, tree, tree, tree, bool); |
e01d41e5 | 1226 | extern bool c_omp_check_loop_iv (tree, tree, walk_tree_lh); |
1160ec9a | 1227 | extern bool c_omp_check_loop_iv_exprs (location_t, tree, int, tree, tree, tree, |
e01d41e5 | 1228 | walk_tree_lh); |
41dbbb37 | 1229 | extern tree c_finish_oacc_wait (location_t, tree, tree); |
e7ff0319 | 1230 | extern tree c_oacc_split_loop_clauses (tree, tree *, bool); |
acf0174b JJ |
1231 | extern void c_omp_split_clauses (location_t, enum tree_code, omp_clause_mask, |
1232 | tree, tree *); | |
1233 | extern tree c_omp_declare_simd_clauses_to_numbers (tree, tree); | |
1234 | extern void c_omp_declare_simd_clauses_to_decls (tree, tree); | |
59bc434a | 1235 | extern bool c_omp_predefined_variable (tree); |
953ff289 | 1236 | extern enum omp_clause_default_kind c_omp_predetermined_sharing (tree); |
93535a2b | 1237 | extern enum omp_clause_defaultmap_kind c_omp_predetermined_mapping (tree); |
94e7f906 | 1238 | extern tree c_omp_check_context_selector (location_t, tree); |
20de9568 | 1239 | extern void c_omp_mark_declare_variant (location_t, tree, tree); |
519d7496 | 1240 | extern const char *c_omp_map_clause_name (tree, bool); |
9e628024 | 1241 | extern void c_omp_adjust_map_clauses (tree, bool); |
953ff289 | 1242 | |
56300785 JJ |
1243 | /* Return next tree in the chain for chain_next walking of tree nodes. */ |
1244 | static inline tree | |
1245 | c_tree_chain_next (tree t) | |
1246 | { | |
1247 | /* TREE_CHAIN of a type is TYPE_STUB_DECL, which is different | |
1248 | kind of object, never a long chain of nodes. Prefer | |
1249 | TYPE_NEXT_VARIANT for types. */ | |
1250 | if (CODE_CONTAINS_STRUCT (TREE_CODE (t), TS_TYPE_COMMON)) | |
1251 | return TYPE_NEXT_VARIANT (t); | |
1252 | /* Otherwise, if there is TREE_CHAIN, return it. */ | |
1253 | if (CODE_CONTAINS_STRUCT (TREE_CODE (t), TS_COMMON)) | |
1254 | return TREE_CHAIN (t); | |
1255 | return NULL; | |
1256 | } | |
1257 | ||
0a35513e AH |
1258 | /* Mask used by tm_stmt_attr. */ |
1259 | #define TM_STMT_ATTR_OUTER 2 | |
1260 | #define TM_STMT_ATTR_ATOMIC 4 | |
1261 | #define TM_STMT_ATTR_RELAXED 8 | |
1262 | ||
0a35513e AH |
1263 | /* Mask used by tm_attr_to_mask and tm_mask_to_attr. Note that these |
1264 | are ordered specifically such that more restrictive attributes are | |
1265 | at lower bit positions. This fact is known by the C++ tm attribute | |
1266 | inheritance code such that least bit extraction (mask & -mask) results | |
1267 | in the most restrictive attribute. */ | |
1268 | #define TM_ATTR_SAFE 1 | |
1269 | #define TM_ATTR_CALLABLE 2 | |
1270 | #define TM_ATTR_PURE 4 | |
1271 | #define TM_ATTR_IRREVOCABLE 8 | |
1272 | #define TM_ATTR_MAY_CANCEL_OUTER 16 | |
1273 | ||
3ce4f9e4 ESR |
1274 | /* A suffix-identifier value doublet that represents user-defined literals |
1275 | for C++-0x. */ | |
2d7aa578 ESR |
1276 | enum overflow_type { |
1277 | OT_UNDERFLOW = -1, | |
1278 | OT_NONE, | |
1279 | OT_OVERFLOW | |
1280 | }; | |
1281 | ||
3ce4f9e4 ESR |
1282 | struct GTY(()) tree_userdef_literal { |
1283 | struct tree_base base; | |
1284 | tree suffix_id; | |
1285 | tree value; | |
1286 | tree num_string; | |
2d7aa578 | 1287 | enum overflow_type overflow; |
3ce4f9e4 ESR |
1288 | }; |
1289 | ||
1290 | #define USERDEF_LITERAL_SUFFIX_ID(NODE) \ | |
1291 | (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->suffix_id) | |
1292 | ||
1293 | #define USERDEF_LITERAL_VALUE(NODE) \ | |
1294 | (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->value) | |
1295 | ||
2d7aa578 ESR |
1296 | #define USERDEF_LITERAL_OVERFLOW(NODE) \ |
1297 | (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->overflow) | |
1298 | ||
3ce4f9e4 ESR |
1299 | #define USERDEF_LITERAL_NUM_STRING(NODE) \ |
1300 | (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->num_string) | |
1301 | ||
1302 | #define USERDEF_LITERAL_TYPE(NODE) \ | |
1303 | (TREE_TYPE (USERDEF_LITERAL_VALUE (NODE))) | |
1304 | ||
2d7aa578 ESR |
1305 | extern tree build_userdef_literal (tree suffix_id, tree value, |
1306 | enum overflow_type overflow, | |
1307 | tree num_string); | |
3ce4f9e4 | 1308 | |
cba079f3 SL |
1309 | |
1310 | /* WHILE_STMT accessors. These give access to the condition of the | |
1311 | while statement and the body of the while statement, respectively. */ | |
1312 | #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0) | |
1313 | #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1) | |
1314 | ||
1315 | /* DO_STMT accessors. These give access to the condition of the do | |
1316 | statement and the body of the do statement, respectively. */ | |
1317 | #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0) | |
1318 | #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1) | |
1319 | ||
1320 | /* FOR_STMT accessors. These give access to the init statement, | |
1321 | condition, update expression, and body of the for statement, | |
1322 | respectively. */ | |
1323 | #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0) | |
1324 | #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1) | |
1325 | #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2) | |
1326 | #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3) | |
1327 | #define FOR_SCOPE(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 4) | |
1328 | ||
1329 | #define SWITCH_STMT_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0) | |
1330 | #define SWITCH_STMT_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1) | |
1331 | #define SWITCH_STMT_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2) | |
1332 | #define SWITCH_STMT_SCOPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 3) | |
1333 | /* True if there are case labels for all possible values of switch cond, either | |
1334 | because there is a default: case label or because the case label ranges cover | |
1335 | all values. */ | |
1336 | #define SWITCH_STMT_ALL_CASES_P(NODE) \ | |
1337 | TREE_LANG_FLAG_0 (SWITCH_STMT_CHECK (NODE)) | |
1338 | /* True if the body of a switch stmt contains no BREAK_STMTs. */ | |
1339 | #define SWITCH_STMT_NO_BREAK_P(NODE) \ | |
1340 | TREE_LANG_FLAG_2 (SWITCH_STMT_CHECK (NODE)) | |
1341 | ||
1342 | ||
1343 | /* Nonzero if NODE is the target for genericization of 'break' stmts. */ | |
1344 | #define LABEL_DECL_BREAK(NODE) \ | |
1345 | DECL_LANG_FLAG_0 (LABEL_DECL_CHECK (NODE)) | |
1346 | ||
1347 | /* Nonzero if NODE is the target for genericization of 'continue' stmts. */ | |
1348 | #define LABEL_DECL_CONTINUE(NODE) \ | |
1349 | DECL_LANG_FLAG_1 (LABEL_DECL_CHECK (NODE)) | |
1350 | ||
f17a223d | 1351 | extern bool convert_vector_to_array_for_subscript (location_t, tree *, tree); |
7edaa4d2 | 1352 | |
a212e43f MG |
1353 | /* Possibe cases of scalar_to_vector conversion. */ |
1354 | enum stv_conv { | |
688010ba | 1355 | stv_error, /* Error occurred. */ |
a212e43f MG |
1356 | stv_nothing, /* Nothing happened. */ |
1357 | stv_firstarg, /* First argument must be expanded. */ | |
1358 | stv_secondarg /* Second argument must be expanded. */ | |
1359 | }; | |
1360 | ||
1361 | extern enum stv_conv scalar_to_vector (location_t loc, enum tree_code code, | |
1362 | tree op0, tree op1, bool); | |
1363 | ||
d60f1706 BI |
1364 | extern tree find_inv_trees (tree *, int *, void *); |
1365 | extern tree replace_inv_trees (tree *, int *, void *); | |
5e9d6aa4 | 1366 | |
1807ffc1 | 1367 | extern bool reject_gcc_builtin (const_tree, location_t = UNKNOWN_LOCATION); |
28a8cef1 MS |
1368 | extern bool valid_array_size_p (location_t, const_tree, tree, bool = true); |
1369 | extern void invalid_array_size_error (location_t, cst_size_error, | |
1370 | const_tree, const_tree); | |
c3388e62 | 1371 | |
038b5cc0 MP |
1372 | /* In c-warn.c. */ |
1373 | extern void constant_expression_warning (tree); | |
1374 | extern void constant_expression_error (tree); | |
3cd211af | 1375 | extern void overflow_warning (location_t, tree, tree = NULL_TREE); |
038b5cc0 MP |
1376 | extern void warn_logical_operator (location_t, enum tree_code, tree, |
1377 | enum tree_code, tree, enum tree_code, tree); | |
a14feb3c DM |
1378 | extern void warn_tautological_cmp (const op_location_t &, enum tree_code, |
1379 | tree, tree); | |
038b5cc0 MP |
1380 | extern void warn_logical_not_parentheses (location_t, enum tree_code, tree, |
1381 | tree); | |
0000ea4f | 1382 | extern bool warn_if_unused_value (const_tree, location_t, bool = false); |
0444aa9c | 1383 | extern bool strict_aliasing_warning (location_t, tree, tree); |
038b5cc0 MP |
1384 | extern void sizeof_pointer_memaccess_warning (location_t *, tree, |
1385 | vec<tree, va_gc> *, tree *, | |
1386 | bool (*) (tree, tree)); | |
1387 | extern void check_main_parameter_types (tree decl); | |
1388 | extern void warnings_for_convert_and_check (location_t, tree, tree, tree); | |
c280b7ee | 1389 | extern void c_do_switch_warnings (splay_tree, location_t, tree, tree, bool); |
038b5cc0 | 1390 | extern void warn_for_omitted_condop (location_t, tree); |
e9b9fa4c | 1391 | extern bool warn_for_restrict (unsigned, tree *, unsigned); |
420183d9 | 1392 | extern void warn_for_address_or_pointer_of_packed_member (tree, tree); |
6450f073 | 1393 | extern void warn_parm_array_mismatch (location_t, tree, tree); |
83f83ddf | 1394 | extern void maybe_warn_sizeof_array_div (location_t, tree, tree, tree, tree); |
038b5cc0 MP |
1395 | |
1396 | /* Places where an lvalue, or modifiable lvalue, may be required. | |
1397 | Used to select diagnostic messages in lvalue_error and | |
1398 | readonly_error. */ | |
1399 | enum lvalue_use { | |
1400 | lv_assign, | |
1401 | lv_increment, | |
1402 | lv_decrement, | |
1403 | lv_addressof, | |
1404 | lv_asm | |
1405 | }; | |
1406 | ||
1407 | extern void lvalue_error (location_t, enum lvalue_use); | |
1408 | extern void invalid_indirection_error (location_t, tree, ref_operator); | |
1409 | extern void readonly_error (location_t, tree, enum lvalue_use); | |
1410 | extern void warn_array_subscript_with_type_char (location_t, tree); | |
1411 | extern void warn_about_parentheses (location_t, | |
1412 | enum tree_code, | |
1413 | enum tree_code, tree, | |
1414 | enum tree_code, tree); | |
1415 | extern void warn_for_unused_label (tree label); | |
1416 | extern void warn_for_div_by_zero (location_t, tree divisor); | |
1417 | extern void warn_for_memset (location_t, tree, tree, int); | |
1418 | extern void warn_for_sign_compare (location_t, | |
1419 | tree orig_op0, tree orig_op1, | |
1420 | tree op0, tree op1, | |
1421 | tree result_type, | |
1422 | enum tree_code resultcode); | |
1423 | extern void do_warn_double_promotion (tree, tree, tree, const char *, | |
1424 | location_t); | |
1425 | extern void do_warn_unused_parameter (tree); | |
1426 | extern void record_locally_defined_typedef (tree); | |
1427 | extern void maybe_record_typedef_use (tree); | |
1428 | extern void maybe_warn_unused_local_typedefs (void); | |
1429 | extern void maybe_warn_bool_compare (location_t, enum tree_code, tree, tree); | |
1430 | extern bool maybe_warn_shift_overflow (location_t, tree, tree); | |
1431 | extern void warn_duplicated_cond_add_or_warn (location_t, tree, vec<tree> **); | |
1432 | extern bool diagnose_mismatched_attributes (tree, tree); | |
2ebd93e1 | 1433 | extern tree do_warn_duplicated_branches_r (tree *, int *, void *); |
3e2becc4 MP |
1434 | extern void warn_for_multistatement_macros (location_t, location_t, |
1435 | location_t, enum rid); | |
038b5cc0 | 1436 | |
b12b1915 MP |
1437 | /* In c-attribs.c. */ |
1438 | extern bool attribute_takes_identifier_p (const_tree); | |
2cc94aa8 | 1439 | extern tree handle_deprecated_attribute (tree *, tree, tree, int, bool *); |
b12b1915 | 1440 | extern tree handle_unused_attribute (tree *, tree, tree, int, bool *); |
f8aea5e3 | 1441 | extern tree handle_fallthrough_attribute (tree *, tree, tree, int, bool *); |
b12b1915 MP |
1442 | extern int parse_tm_stmt_attr (tree, int); |
1443 | extern int tm_attr_to_mask (tree); | |
1444 | extern tree tm_mask_to_attr (int); | |
1445 | extern tree find_tm_attribute (tree); | |
2674fa47 | 1446 | extern const struct attribute_spec::exclusions attr_cold_hot_exclusions[]; |
1bf32c11 MP |
1447 | extern const struct attribute_spec::exclusions attr_noreturn_exclusions[]; |
1448 | extern tree handle_noreturn_attribute (tree *, tree, tree, int, bool *); | |
6450f073 MS |
1449 | extern bool has_attribute (location_t, tree, tree, tree (*)(tree)); |
1450 | extern tree build_attr_access_from_parms (tree, bool); | |
b12b1915 | 1451 | |
23db6ced MS |
1452 | /* In c-format.c. */ |
1453 | extern bool valid_format_string_type_p (tree); | |
1454 | ||
1d249509 MS |
1455 | /* A bitmap of flags to positional_argument. */ |
1456 | enum posargflags { | |
1457 | /* Consider positional attribute argument value zero valid. */ | |
1458 | POSARG_ZERO = 1, | |
1459 | /* Consider positional attribute argument value valid if it refers | |
1460 | to the ellipsis (i.e., beyond the last typed argument). */ | |
1461 | POSARG_ELLIPSIS = 2 | |
1462 | }; | |
1463 | ||
1464 | extern tree positional_argument (const_tree, const_tree, tree, tree_code, | |
1465 | int = 0, int = posargflags ()); | |
1466 | ||
56d8ffc1 JG |
1467 | extern enum flt_eval_method |
1468 | excess_precision_mode_join (enum flt_eval_method, enum flt_eval_method); | |
1469 | ||
1470 | extern int c_flt_eval_method (bool ts18661_p); | |
45b2222a | 1471 | extern void add_no_sanitize_value (tree node, unsigned int flags); |
56d8ffc1 | 1472 | |
85204e23 | 1473 | extern void maybe_add_include_fixit (rich_location *, const char *, bool); |
62e1c678 DM |
1474 | extern void maybe_suggest_missing_token_insertion (rich_location *richloc, |
1475 | enum cpp_ttype token_type, | |
1476 | location_t prev_token_loc); | |
bec1da64 MS |
1477 | extern tree braced_lists_to_strings (tree, tree); |
1478 | ||
895aa8e1 DM |
1479 | #if CHECKING_P |
1480 | namespace selftest { | |
b6f43128 DM |
1481 | /* Declarations for specific families of tests within c-family, |
1482 | by source file, in alphabetical order. */ | |
895aa8e1 | 1483 | extern void c_format_c_tests (void); |
10fcc142 | 1484 | extern void c_indentation_c_tests (void); |
9a004410 | 1485 | extern void c_pretty_print_c_tests (void); |
c79144f8 | 1486 | extern void c_spellcheck_cc_tests (void); |
b6f43128 DM |
1487 | |
1488 | /* The entrypoint for running all of the above tests. */ | |
1489 | extern void c_family_tests (void); | |
895aa8e1 DM |
1490 | } // namespace selftest |
1491 | #endif /* #if CHECKING_P */ | |
1492 | ||
88657302 | 1493 | #endif /* ! GCC_C_COMMON_H */ |