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7f4edbcb | 1 | /* Definitions for c-common.c. |
a5544970 | 2 | Copyright (C) 1987-2019 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, | |
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, | |
96 | RID_ENUM, RID_STRUCT, RID_UNION, RID_IF, RID_ELSE, | |
97 | RID_WHILE, RID_DO, RID_FOR, RID_SWITCH, RID_CASE, | |
98 | RID_DEFAULT, RID_BREAK, RID_CONTINUE, RID_RETURN, RID_GOTO, | |
99 | RID_SIZEOF, | |
100 | ||
101 | /* C extensions */ | |
102 | RID_ASM, RID_TYPEOF, RID_ALIGNOF, RID_ATTRIBUTE, RID_VA_ARG, | |
da5b307a | 103 | RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_CHOOSE_EXPR, |
f90e8e2e | 104 | RID_TYPES_COMPATIBLE_P, RID_BUILTIN_COMPLEX, RID_BUILTIN_SHUFFLE, |
d8fcab68 | 105 | RID_BUILTIN_CONVERTVECTOR, RID_BUILTIN_TGMATH, |
98f08eb8 | 106 | RID_BUILTIN_HAS_ATTRIBUTE, |
9a8ce21f | 107 | RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128, |
c65699ef JM |
108 | |
109 | /* TS 18661-3 keywords, in the same sequence as the TI_* values. */ | |
110 | RID_FLOAT16, | |
111 | RID_FLOATN_NX_FIRST = RID_FLOAT16, | |
112 | RID_FLOAT32, | |
113 | RID_FLOAT64, | |
114 | RID_FLOAT128, | |
115 | RID_FLOAT32X, | |
116 | RID_FLOAT64X, | |
117 | RID_FLOAT128X, | |
118 | #define CASE_RID_FLOATN_NX \ | |
119 | case RID_FLOAT16: case RID_FLOAT32: case RID_FLOAT64: case RID_FLOAT128: \ | |
120 | case RID_FLOAT32X: case RID_FLOAT64X: case RID_FLOAT128X | |
121 | ||
74893f25 | 122 | RID_FRACT, RID_ACCUM, RID_AUTO_TYPE, RID_BUILTIN_CALL_WITH_STATIC_CHAIN, |
0e5921e8 | 123 | |
1ee62b92 PG |
124 | /* "__GIMPLE", for the GIMPLE-parsing extension to the C frontend. */ |
125 | RID_GIMPLE, | |
126 | ||
127 | /* "__PHI", for parsing PHI function in GIMPLE FE. */ | |
128 | RID_PHI, | |
129 | ||
c2e84327 DM |
130 | /* "__RTL", for the RTL-parsing extension to the C frontend. */ |
131 | RID_RTL, | |
132 | ||
48b0b196 | 133 | /* C11 */ |
433cc7b0 | 134 | RID_ALIGNAS, RID_GENERIC, |
d19fa6b5 | 135 | |
eea1139b ILT |
136 | /* This means to warn that this is a C++ keyword, and then treat it |
137 | as a normal identifier. */ | |
138 | RID_CXX_COMPAT_WARN, | |
139 | ||
0a35513e AH |
140 | /* GNU transactional memory extension */ |
141 | RID_TRANSACTION_ATOMIC, RID_TRANSACTION_RELAXED, RID_TRANSACTION_CANCEL, | |
142 | ||
0ba8a114 NS |
143 | /* Too many ways of getting the name of a function as a string */ |
144 | RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME, | |
145 | ||
1973201f NP |
146 | /* C++ (some of these are keywords in Objective-C as well, but only |
147 | if they appear after a '@') */ | |
0e5921e8 ZW |
148 | RID_BOOL, RID_WCHAR, RID_CLASS, |
149 | RID_PUBLIC, RID_PRIVATE, RID_PROTECTED, | |
150 | RID_TEMPLATE, RID_NULL, RID_CATCH, | |
151 | RID_DELETE, RID_FALSE, RID_NAMESPACE, | |
c22cacf3 MS |
152 | RID_NEW, RID_OFFSETOF, RID_OPERATOR, |
153 | RID_THIS, RID_THROW, RID_TRUE, | |
154 | RID_TRY, RID_TYPENAME, RID_TYPEID, | |
b6baa67d | 155 | RID_USING, RID_CHAR16, RID_CHAR32, |
0e5921e8 ZW |
156 | |
157 | /* casts */ | |
158 | RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST, | |
159 | ||
cb68ec50 | 160 | /* C++ extensions */ |
e16f1cc7 JJ |
161 | RID_ADDRESSOF, RID_BASES, |
162 | RID_BUILTIN_LAUNDER, RID_DIRECT_BASES, | |
cb68ec50 PC |
163 | RID_HAS_NOTHROW_ASSIGN, RID_HAS_NOTHROW_CONSTRUCTOR, |
164 | RID_HAS_NOTHROW_COPY, RID_HAS_TRIVIAL_ASSIGN, | |
165 | RID_HAS_TRIVIAL_CONSTRUCTOR, RID_HAS_TRIVIAL_COPY, | |
342cfb3e JJ |
166 | RID_HAS_TRIVIAL_DESTRUCTOR, RID_HAS_UNIQUE_OBJ_REPRESENTATIONS, |
167 | RID_HAS_VIRTUAL_DESTRUCTOR, | |
af88f557 JJ |
168 | RID_IS_ABSTRACT, RID_IS_AGGREGATE, |
169 | RID_IS_BASE_OF, RID_IS_CLASS, | |
cb68ec50 | 170 | RID_IS_EMPTY, RID_IS_ENUM, |
b3908fcc JW |
171 | RID_IS_FINAL, RID_IS_LITERAL_TYPE, |
172 | RID_IS_POD, RID_IS_POLYMORPHIC, | |
971e17ff | 173 | RID_IS_SAME_AS, |
b3908fcc | 174 | RID_IS_STD_LAYOUT, RID_IS_TRIVIAL, |
dd5d5481 | 175 | RID_IS_TRIVIALLY_ASSIGNABLE, RID_IS_TRIVIALLY_CONSTRUCTIBLE, |
b752325e | 176 | RID_IS_TRIVIALLY_COPYABLE, |
b3908fcc | 177 | RID_IS_UNION, RID_UNDERLYING_TYPE, |
b42cc3ca | 178 | RID_IS_ASSIGNABLE, RID_IS_CONSTRUCTIBLE, |
cb68ec50 | 179 | |
b3908fcc | 180 | /* C++11 */ |
0a766368 | 181 | RID_CONSTEXPR, RID_DECLTYPE, RID_NOEXCEPT, RID_NULLPTR, RID_STATIC_ASSERT, |
218f0015 | 182 | |
4742dbe7 MP |
183 | /* C++20 */ |
184 | RID_CONSTINIT, | |
185 | ||
2d91f79d TH |
186 | /* char8_t */ |
187 | RID_CHAR8, | |
188 | ||
971e17ff AS |
189 | /* C++ concepts */ |
190 | RID_CONCEPT, RID_REQUIRES, | |
191 | ||
b8fd7909 JM |
192 | /* C++ transactional memory. */ |
193 | RID_ATOMIC_NOEXCEPT, RID_ATOMIC_CANCEL, RID_SYNCHRONIZED, | |
194 | ||
1973201f NP |
195 | /* Objective-C ("AT" reserved words - they are only keywords when |
196 | they follow '@') */ | |
3a3589b4 | 197 | RID_AT_ENCODE, RID_AT_END, |
0e5921e8 | 198 | RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS, |
c37d8c30 | 199 | RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC, RID_AT_PACKAGE, |
c22cacf3 | 200 | RID_AT_PROTOCOL, RID_AT_SELECTOR, |
264fa2db | 201 | RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH, |
92902b1b | 202 | RID_AT_FINALLY, RID_AT_SYNCHRONIZED, |
668ea4b1 | 203 | RID_AT_OPTIONAL, RID_AT_REQUIRED, RID_AT_PROPERTY, |
da57d1b9 | 204 | RID_AT_SYNTHESIZE, RID_AT_DYNAMIC, |
264fa2db | 205 | RID_AT_INTERFACE, |
0e5921e8 ZW |
206 | RID_AT_IMPLEMENTATION, |
207 | ||
36c5e70a BE |
208 | /* Named address support, mapping the keyword to a particular named address |
209 | number. Named address space 0 is reserved for the generic address. If | |
210 | there are more than 254 named addresses, the addr_space_t type will need | |
211 | to be grown from an unsigned char to unsigned short. */ | |
212 | RID_ADDR_SPACE_0, /* generic address */ | |
213 | RID_ADDR_SPACE_1, | |
214 | RID_ADDR_SPACE_2, | |
215 | RID_ADDR_SPACE_3, | |
216 | RID_ADDR_SPACE_4, | |
217 | RID_ADDR_SPACE_5, | |
218 | RID_ADDR_SPACE_6, | |
219 | RID_ADDR_SPACE_7, | |
220 | RID_ADDR_SPACE_8, | |
221 | RID_ADDR_SPACE_9, | |
222 | RID_ADDR_SPACE_10, | |
223 | RID_ADDR_SPACE_11, | |
224 | RID_ADDR_SPACE_12, | |
225 | RID_ADDR_SPACE_13, | |
226 | RID_ADDR_SPACE_14, | |
227 | RID_ADDR_SPACE_15, | |
228 | ||
229 | RID_FIRST_ADDR_SPACE = RID_ADDR_SPACE_0, | |
230 | RID_LAST_ADDR_SPACE = RID_ADDR_SPACE_15, | |
231 | ||
78a7c317 DD |
232 | /* __intN keywords. The _N_M here doesn't correspond to the intN |
233 | in the keyword; use the bitsize in int_n_t_data_t[M] for that. | |
234 | For example, if int_n_t_data_t[0].bitsize is 13, then RID_INT_N_0 | |
235 | is for __int13. */ | |
236 | ||
237 | /* Note that the range to use is RID_FIRST_INT_N through | |
238 | RID_FIRST_INT_N + NUM_INT_N_ENTS - 1 and c-parser.c has a list of | |
239 | all RID_INT_N_* in a case statement. */ | |
240 | ||
241 | RID_INT_N_0, | |
242 | RID_INT_N_1, | |
243 | RID_INT_N_2, | |
244 | RID_INT_N_3, | |
245 | ||
246 | RID_FIRST_INT_N = RID_INT_N_0, | |
247 | RID_LAST_INT_N = RID_INT_N_3, | |
248 | ||
0e5921e8 ZW |
249 | RID_MAX, |
250 | ||
251 | RID_FIRST_MODIFIER = RID_STATIC, | |
b8363a24 ZW |
252 | RID_LAST_MODIFIER = RID_ONEWAY, |
253 | ||
36a85135 JM |
254 | RID_FIRST_CXX11 = RID_CONSTEXPR, |
255 | RID_LAST_CXX11 = RID_STATIC_ASSERT, | |
4742dbe7 MP |
256 | RID_FIRST_CXX20 = RID_CONSTINIT, |
257 | RID_LAST_CXX20 = RID_CONSTINIT, | |
b8363a24 ZW |
258 | RID_FIRST_AT = RID_AT_ENCODE, |
259 | RID_LAST_AT = RID_AT_IMPLEMENTATION, | |
260 | RID_FIRST_PQ = RID_IN, | |
668ea4b1 | 261 | RID_LAST_PQ = RID_ONEWAY, |
200290f2 NP |
262 | RID_FIRST_PATTR = RID_GETTER, |
263 | RID_LAST_PATTR = RID_NONATOMIC | |
f09f1de5 MM |
264 | }; |
265 | ||
b8363a24 | 266 | #define OBJC_IS_AT_KEYWORD(rid) \ |
3f75a254 JM |
267 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_AT && \ |
268 | (unsigned int) (rid) <= (unsigned int) RID_LAST_AT) | |
b8363a24 ZW |
269 | |
270 | #define OBJC_IS_PQ_KEYWORD(rid) \ | |
3f75a254 JM |
271 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PQ && \ |
272 | (unsigned int) (rid) <= (unsigned int) RID_LAST_PQ) | |
b8363a24 | 273 | |
668ea4b1 IS |
274 | #define OBJC_IS_PATTR_KEYWORD(rid) \ |
275 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PATTR && \ | |
276 | (unsigned int) (rid) <= (unsigned int) RID_LAST_PATTR) | |
277 | ||
1973201f NP |
278 | /* OBJC_IS_CXX_KEYWORD recognizes the 'CXX_OBJC' keywords (such as |
279 | 'class') which are shared in a subtle way between Objective-C and | |
280 | C++. When the lexer is lexing in Objective-C/Objective-C++, if it | |
281 | finds '@' followed by one of these identifiers (eg, '@class'), it | |
282 | recognizes the whole as an Objective-C keyword. If the identifier | |
283 | is found elsewhere, it follows the rules of the C/C++ language. | |
284 | */ | |
285 | #define OBJC_IS_CXX_KEYWORD(rid) \ | |
b8fd7909 | 286 | (rid == RID_CLASS || rid == RID_SYNCHRONIZED \ |
1973201f NP |
287 | || rid == RID_PUBLIC || rid == RID_PROTECTED || rid == RID_PRIVATE \ |
288 | || rid == RID_TRY || rid == RID_THROW || rid == RID_CATCH) | |
289 | ||
f09f1de5 MM |
290 | /* The elements of `ridpointers' are identifier nodes for the reserved |
291 | type names and storage classes. It is indexed by a RID_... value. */ | |
3f75a254 | 292 | extern GTY ((length ("(int) RID_MAX"))) tree *ridpointers; |
f09f1de5 | 293 | |
7f4edbcb BS |
294 | /* Standard named or nameless data types of the C compiler. */ |
295 | ||
296 | enum c_tree_index | |
297 | { | |
2d91f79d | 298 | CTI_CHAR8_TYPE, |
b6baa67d KVH |
299 | CTI_CHAR16_TYPE, |
300 | CTI_CHAR32_TYPE, | |
7f4edbcb | 301 | CTI_WCHAR_TYPE, |
207bf79d | 302 | CTI_UNDERLYING_WCHAR_TYPE, |
c5ab7f91 | 303 | CTI_WINT_TYPE, |
cd732418 JM |
304 | CTI_SIGNED_SIZE_TYPE, /* For format checking only. */ |
305 | CTI_UNSIGNED_PTRDIFF_TYPE, /* For format checking only. */ | |
b15ad712 JM |
306 | CTI_INTMAX_TYPE, |
307 | CTI_UINTMAX_TYPE, | |
7f4edbcb BS |
308 | CTI_WIDEST_INT_LIT_TYPE, |
309 | CTI_WIDEST_UINT_LIT_TYPE, | |
310 | ||
207bf79d JM |
311 | /* Types for <stdint.h>, that may not be defined on all |
312 | targets. */ | |
313 | CTI_SIG_ATOMIC_TYPE, | |
314 | CTI_INT8_TYPE, | |
315 | CTI_INT16_TYPE, | |
316 | CTI_INT32_TYPE, | |
317 | CTI_INT64_TYPE, | |
318 | CTI_UINT8_TYPE, | |
319 | CTI_UINT16_TYPE, | |
320 | CTI_UINT32_TYPE, | |
321 | CTI_UINT64_TYPE, | |
322 | CTI_INT_LEAST8_TYPE, | |
323 | CTI_INT_LEAST16_TYPE, | |
324 | CTI_INT_LEAST32_TYPE, | |
325 | CTI_INT_LEAST64_TYPE, | |
326 | CTI_UINT_LEAST8_TYPE, | |
327 | CTI_UINT_LEAST16_TYPE, | |
328 | CTI_UINT_LEAST32_TYPE, | |
329 | CTI_UINT_LEAST64_TYPE, | |
330 | CTI_INT_FAST8_TYPE, | |
331 | CTI_INT_FAST16_TYPE, | |
332 | CTI_INT_FAST32_TYPE, | |
333 | CTI_INT_FAST64_TYPE, | |
334 | CTI_UINT_FAST8_TYPE, | |
335 | CTI_UINT_FAST16_TYPE, | |
336 | CTI_UINT_FAST32_TYPE, | |
337 | CTI_UINT_FAST64_TYPE, | |
338 | CTI_INTPTR_TYPE, | |
339 | CTI_UINTPTR_TYPE, | |
340 | ||
7f4edbcb | 341 | CTI_CHAR_ARRAY_TYPE, |
2d91f79d | 342 | CTI_CHAR8_ARRAY_TYPE, |
b6baa67d KVH |
343 | CTI_CHAR16_ARRAY_TYPE, |
344 | CTI_CHAR32_ARRAY_TYPE, | |
7f4edbcb | 345 | CTI_WCHAR_ARRAY_TYPE, |
7f4edbcb BS |
346 | CTI_STRING_TYPE, |
347 | CTI_CONST_STRING_TYPE, | |
348 | ||
19552aa5 | 349 | /* Type for boolean expressions (bool in C++, int in C). */ |
de7df9eb JM |
350 | CTI_TRUTHVALUE_TYPE, |
351 | CTI_TRUTHVALUE_TRUE, | |
352 | CTI_TRUTHVALUE_FALSE, | |
353 | ||
7f4edbcb | 354 | CTI_DEFAULT_FUNCTION_TYPE, |
7f4edbcb | 355 | |
2ba84f36 | 356 | /* These are not types, but we have to look them up all the time. */ |
0ba8a114 NS |
357 | CTI_FUNCTION_NAME_DECL, |
358 | CTI_PRETTY_FUNCTION_NAME_DECL, | |
359 | CTI_C99_FUNCTION_NAME_DECL, | |
360 | CTI_SAVED_FUNCTION_NAME_DECLS, | |
c22cacf3 | 361 | |
b2f97e4a MM |
362 | CTI_NULL, |
363 | ||
7f4edbcb BS |
364 | CTI_MAX |
365 | }; | |
366 | ||
5950c3c9 BE |
367 | #define C_CPP_HASHNODE(id) \ |
368 | (&(((struct c_common_identifier *) (id))->node)) | |
d75d71e0 ILT |
369 | #define C_RID_CODE(id) \ |
370 | ((enum rid) (((struct c_common_identifier *) (id))->node.rid_code)) | |
371 | #define C_SET_RID_CODE(id, code) \ | |
372 | (((struct c_common_identifier *) (id))->node.rid_code = (unsigned char) code) | |
2a967f3d NB |
373 | |
374 | /* Identifier part common to the C front ends. Inherits from | |
375 | tree_identifier, despite appearances. */ | |
d1b38208 | 376 | struct GTY(()) c_common_identifier { |
4f60111f | 377 | struct tree_common common; |
17211ab5 | 378 | struct cpp_hashnode node; |
2a967f3d NB |
379 | }; |
380 | ||
eea1139b ILT |
381 | /* An entry in the reserved keyword table. */ |
382 | ||
383 | struct c_common_resword | |
384 | { | |
385 | const char *const word; | |
386 | ENUM_BITFIELD(rid) const rid : 16; | |
387 | const unsigned int disable : 16; | |
388 | }; | |
389 | ||
8fba1830 BRF |
390 | /* Mode used to build pointers (VOIDmode means ptr_mode). */ |
391 | ||
392 | extern machine_mode c_default_pointer_mode; | |
393 | ||
34429675 JM |
394 | /* Extra cpp_ttype values for C++. */ |
395 | ||
34429675 JM |
396 | /* A token type for template-ids. If a template-id is processed while |
397 | parsing tentatively, it is replaced with a CPP_TEMPLATE_ID token; | |
398 | the value of the CPP_TEMPLATE_ID is whatever was returned by | |
399 | cp_parser_template_id. */ | |
400 | #define CPP_TEMPLATE_ID ((enum cpp_ttype) (CPP_KEYWORD + 1)) | |
401 | ||
402 | /* A token type for nested-name-specifiers. If a | |
403 | nested-name-specifier is processed while parsing tentatively, it is | |
404 | replaced with a CPP_NESTED_NAME_SPECIFIER token; the value of the | |
405 | CPP_NESTED_NAME_SPECIFIER is whatever was returned by | |
406 | cp_parser_nested_name_specifier_opt. */ | |
407 | #define CPP_NESTED_NAME_SPECIFIER ((enum cpp_ttype) (CPP_TEMPLATE_ID + 1)) | |
408 | ||
409 | /* A token type for pre-parsed C++0x decltype. */ | |
410 | #define CPP_DECLTYPE ((enum cpp_ttype) (CPP_NESTED_NAME_SPECIFIER + 1)) | |
411 | ||
5f83e90b JM |
412 | /* A token type for pre-parsed primary-expression (lambda- or statement-). */ |
413 | #define CPP_PREPARSED_EXPR ((enum cpp_ttype) (CPP_DECLTYPE + 1)) | |
414 | ||
34429675 | 415 | /* The number of token types, including C++-specific ones. */ |
5f83e90b | 416 | #define N_CP_TTYPES ((int) (CPP_PREPARSED_EXPR + 1)) |
34429675 | 417 | |
eea1139b ILT |
418 | /* Disable mask. Keywords are disabled if (reswords[i].disable & |
419 | mask) is _true_. Thus for keywords which are present in all | |
420 | languages the disable field is zero. */ | |
421 | ||
2d91f79d TH |
422 | #define D_CONLY 0x0001 /* C only (not in C++). */ |
423 | #define D_CXXONLY 0x0002 /* C++ only (not in C). */ | |
424 | #define D_C99 0x0004 /* In C, C99 only. */ | |
425 | #define D_CXX11 0x0008 /* In C++, C++11 only. */ | |
426 | #define D_EXT 0x0010 /* GCC extension. */ | |
427 | #define D_EXT89 0x0020 /* GCC extension incorporated in C99. */ | |
428 | #define D_ASM 0x0040 /* Disabled by -fno-asm. */ | |
429 | #define D_OBJC 0x0080 /* In Objective C and neither C nor C++. */ | |
430 | #define D_CXX_OBJC 0x0100 /* In Objective C, and C++, but not C. */ | |
431 | #define D_CXXWARN 0x0200 /* In C warn with -Wcxx-compat. */ | |
432 | #define D_CXX_CONCEPTS 0x0400 /* In C++, only with concepts. */ | |
433 | #define D_TRANSMEM 0X0800 /* C++ transactional memory TS. */ | |
434 | #define D_CXX_CHAR8_T 0X1000 /* In C++, only with -fchar8_t. */ | |
4742dbe7 | 435 | #define D_CXX20 0x2000 /* In C++, C++20 only. */ |
971e17ff AS |
436 | |
437 | #define D_CXX_CONCEPTS_FLAGS D_CXXONLY | D_CXX_CONCEPTS | |
2d91f79d | 438 | #define D_CXX_CHAR8_T_FLAGS D_CXXONLY | D_CXX_CHAR8_T |
eea1139b ILT |
439 | |
440 | /* The reserved keyword table. */ | |
441 | extern const struct c_common_resword c_common_reswords[]; | |
442 | ||
443 | /* The number of items in the reserved keyword table. */ | |
444 | extern const unsigned int num_c_common_reswords; | |
445 | ||
2d91f79d | 446 | #define char8_type_node c_global_trees[CTI_CHAR8_TYPE] |
b6baa67d KVH |
447 | #define char16_type_node c_global_trees[CTI_CHAR16_TYPE] |
448 | #define char32_type_node c_global_trees[CTI_CHAR32_TYPE] | |
7f4edbcb | 449 | #define wchar_type_node c_global_trees[CTI_WCHAR_TYPE] |
207bf79d | 450 | #define underlying_wchar_type_node c_global_trees[CTI_UNDERLYING_WCHAR_TYPE] |
c5ab7f91 | 451 | #define wint_type_node c_global_trees[CTI_WINT_TYPE] |
cd732418 JM |
452 | #define signed_size_type_node c_global_trees[CTI_SIGNED_SIZE_TYPE] |
453 | #define unsigned_ptrdiff_type_node c_global_trees[CTI_UNSIGNED_PTRDIFF_TYPE] | |
b15ad712 JM |
454 | #define intmax_type_node c_global_trees[CTI_INTMAX_TYPE] |
455 | #define uintmax_type_node c_global_trees[CTI_UINTMAX_TYPE] | |
7f4edbcb BS |
456 | #define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE] |
457 | #define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE] | |
458 | ||
207bf79d JM |
459 | #define sig_atomic_type_node c_global_trees[CTI_SIG_ATOMIC_TYPE] |
460 | #define int8_type_node c_global_trees[CTI_INT8_TYPE] | |
461 | #define int16_type_node c_global_trees[CTI_INT16_TYPE] | |
462 | #define int32_type_node c_global_trees[CTI_INT32_TYPE] | |
463 | #define int64_type_node c_global_trees[CTI_INT64_TYPE] | |
464 | #define uint8_type_node c_global_trees[CTI_UINT8_TYPE] | |
ac868f29 | 465 | #define c_uint16_type_node c_global_trees[CTI_UINT16_TYPE] |
207bf79d JM |
466 | #define c_uint32_type_node c_global_trees[CTI_UINT32_TYPE] |
467 | #define c_uint64_type_node c_global_trees[CTI_UINT64_TYPE] | |
468 | #define int_least8_type_node c_global_trees[CTI_INT_LEAST8_TYPE] | |
469 | #define int_least16_type_node c_global_trees[CTI_INT_LEAST16_TYPE] | |
470 | #define int_least32_type_node c_global_trees[CTI_INT_LEAST32_TYPE] | |
471 | #define int_least64_type_node c_global_trees[CTI_INT_LEAST64_TYPE] | |
472 | #define uint_least8_type_node c_global_trees[CTI_UINT_LEAST8_TYPE] | |
473 | #define uint_least16_type_node c_global_trees[CTI_UINT_LEAST16_TYPE] | |
474 | #define uint_least32_type_node c_global_trees[CTI_UINT_LEAST32_TYPE] | |
475 | #define uint_least64_type_node c_global_trees[CTI_UINT_LEAST64_TYPE] | |
476 | #define int_fast8_type_node c_global_trees[CTI_INT_FAST8_TYPE] | |
477 | #define int_fast16_type_node c_global_trees[CTI_INT_FAST16_TYPE] | |
478 | #define int_fast32_type_node c_global_trees[CTI_INT_FAST32_TYPE] | |
479 | #define int_fast64_type_node c_global_trees[CTI_INT_FAST64_TYPE] | |
480 | #define uint_fast8_type_node c_global_trees[CTI_UINT_FAST8_TYPE] | |
481 | #define uint_fast16_type_node c_global_trees[CTI_UINT_FAST16_TYPE] | |
482 | #define uint_fast32_type_node c_global_trees[CTI_UINT_FAST32_TYPE] | |
483 | #define uint_fast64_type_node c_global_trees[CTI_UINT_FAST64_TYPE] | |
484 | #define intptr_type_node c_global_trees[CTI_INTPTR_TYPE] | |
485 | #define uintptr_type_node c_global_trees[CTI_UINTPTR_TYPE] | |
486 | ||
de7df9eb JM |
487 | #define truthvalue_type_node c_global_trees[CTI_TRUTHVALUE_TYPE] |
488 | #define truthvalue_true_node c_global_trees[CTI_TRUTHVALUE_TRUE] | |
489 | #define truthvalue_false_node c_global_trees[CTI_TRUTHVALUE_FALSE] | |
19552aa5 | 490 | |
7f4edbcb | 491 | #define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE] |
2d91f79d | 492 | #define char8_array_type_node c_global_trees[CTI_CHAR8_ARRAY_TYPE] |
b6baa67d KVH |
493 | #define char16_array_type_node c_global_trees[CTI_CHAR16_ARRAY_TYPE] |
494 | #define char32_array_type_node c_global_trees[CTI_CHAR32_ARRAY_TYPE] | |
7f4edbcb | 495 | #define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE] |
7f4edbcb BS |
496 | #define string_type_node c_global_trees[CTI_STRING_TYPE] |
497 | #define const_string_type_node c_global_trees[CTI_CONST_STRING_TYPE] | |
498 | ||
499 | #define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE] | |
7f4edbcb | 500 | |
0ba8a114 NS |
501 | #define function_name_decl_node c_global_trees[CTI_FUNCTION_NAME_DECL] |
502 | #define pretty_function_name_decl_node c_global_trees[CTI_PRETTY_FUNCTION_NAME_DECL] | |
503 | #define c99_function_name_decl_node c_global_trees[CTI_C99_FUNCTION_NAME_DECL] | |
504 | #define saved_function_name_decls c_global_trees[CTI_SAVED_FUNCTION_NAME_DECLS] | |
63ad61ed | 505 | |
b2f97e4a MM |
506 | /* The node for C++ `__null'. */ |
507 | #define null_node c_global_trees[CTI_NULL] | |
508 | ||
e2500fed | 509 | extern GTY(()) tree c_global_trees[CTI_MAX]; |
ab76ca54 | 510 | |
8f17b5c5 MM |
511 | /* Mark which labels are explicitly declared. |
512 | These may be shadowed, and may be referenced from nested functions. */ | |
513 | #define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label) | |
514 | ||
a79683d5 | 515 | enum c_language_kind |
ab76ca54 | 516 | { |
9f936c86 | 517 | clk_c = 0, /* C90, C94, C99, C11 or C2X */ |
37fa72e9 NB |
518 | clk_objc = 1, /* clk_c with ObjC features. */ |
519 | clk_cxx = 2, /* ANSI/ISO C++ */ | |
520 | clk_objcxx = 3 /* clk_cxx with ObjC features. */ | |
a79683d5 | 521 | }; |
ab76ca54 | 522 | |
37fa72e9 NB |
523 | /* To test for a specific language use c_language, defined by each |
524 | front end. For "ObjC features" or "not C++" use the macros. */ | |
525 | extern c_language_kind c_language; | |
526 | ||
15a15e8d RH |
527 | #define c_dialect_cxx() ((c_language & clk_cxx) != 0) |
528 | #define c_dialect_objc() ((c_language & clk_objc) != 0) | |
37fa72e9 | 529 | |
dd865ef6 | 530 | /* The various name of operator that appears in error messages. */ |
a79683d5 | 531 | enum ref_operator { |
dd865ef6 SZ |
532 | /* NULL */ |
533 | RO_NULL, | |
534 | /* array indexing */ | |
535 | RO_ARRAY_INDEXING, | |
536 | /* unary * */ | |
537 | RO_UNARY_STAR, | |
538 | /* -> */ | |
539 | RO_ARROW, | |
540 | /* implicit conversion */ | |
5e54f81d MG |
541 | RO_IMPLICIT_CONVERSION, |
542 | /* ->* */ | |
543 | RO_ARROW_STAR | |
a79683d5 | 544 | }; |
dd865ef6 | 545 | |
ae499cce MM |
546 | /* Information about a statement tree. */ |
547 | ||
d1b38208 | 548 | struct GTY(()) stmt_tree_s { |
38e01f9e | 549 | /* A stack of statement lists being collected. */ |
9771b263 | 550 | vec<tree, va_gc> *x_cur_stmt_list; |
325c3691 | 551 | |
da7d8304 | 552 | /* In C++, Nonzero if we should treat statements as full |
04f7a48e | 553 | expressions. In particular, this variable is non-zero if at the |
ae499cce MM |
554 | end of a statement we should destroy any temporaries created |
555 | during that statement. Similarly, if, at the end of a block, we | |
556 | should destroy any local variables in this block. Normally, this | |
da7d8304 | 557 | variable is nonzero, since those are the normal semantics of |
ae499cce MM |
558 | C++. |
559 | ||
ae499cce | 560 | This flag has no effect in C. */ |
21c7361e | 561 | int stmts_are_full_exprs_p; |
ae499cce MM |
562 | }; |
563 | ||
564 | typedef struct stmt_tree_s *stmt_tree; | |
565 | ||
566 | /* Global state pertinent to the current function. Some C dialects | |
567 | extend this structure with additional fields. */ | |
568 | ||
d1b38208 | 569 | struct GTY(()) c_language_function { |
ae499cce MM |
570 | /* While we are parsing the function, this contains information |
571 | about the statement-tree that we are building. */ | |
572 | struct stmt_tree_s x_stmt_tree; | |
3797cb21 DS |
573 | |
574 | /* Vector of locally defined typedefs, for | |
575 | -Wunused-local-typedefs. */ | |
9771b263 | 576 | vec<tree, va_gc> *local_typedefs; |
ae499cce MM |
577 | }; |
578 | ||
38e01f9e NF |
579 | #define stmt_list_stack (current_stmt_tree ()->x_cur_stmt_list) |
580 | ||
35fd3193 | 581 | /* When building a statement-tree, this is the current statement list |
9771b263 DN |
582 | being collected. */ |
583 | #define cur_stmt_list (stmt_list_stack->last ()) | |
38e01f9e | 584 | |
9771b263 | 585 | #define building_stmt_list_p() (stmt_list_stack && !stmt_list_stack->is_empty()) |
8f17b5c5 MM |
586 | |
587 | /* Language-specific hooks. */ | |
588 | ||
4684cd27 MM |
589 | /* If non-NULL, this function is called after a precompile header file |
590 | is loaded. */ | |
591 | extern void (*lang_post_pch_load) (void); | |
592 | ||
f75fbaf7 ZW |
593 | extern void push_file_scope (void); |
594 | extern void pop_file_scope (void); | |
35b1a6fa | 595 | extern stmt_tree current_stmt_tree (void); |
325c3691 | 596 | extern tree push_stmt_list (void); |
325c3691 | 597 | extern tree pop_stmt_list (tree); |
35b1a6fa | 598 | extern tree add_stmt (tree); |
325c3691 | 599 | extern void push_cleanup (tree, tree, bool); |
641da50a | 600 | |
32e8bb8e | 601 | extern tree build_modify_expr (location_t, tree, tree, enum tree_code, |
c2255bc4 | 602 | location_t, tree, tree); |
dd865ef6 | 603 | extern tree build_indirect_ref (location_t, tree, ref_operator); |
35b1a6fa | 604 | |
58f9752a | 605 | extern bool has_c_linkage (const_tree decl); |
1807ffc1 | 606 | extern bool c_decl_implicit (const_tree); |
17211ab5 | 607 | \f |
4078b403 NB |
608 | /* Switches common to the C front ends. */ |
609 | ||
63973df3 NB |
610 | /* Nonzero means don't output line number information. */ |
611 | ||
612 | extern char flag_no_line_commands; | |
613 | ||
614 | /* Nonzero causes -E output not to be done, but directives such as | |
615 | #define that have side effects are still obeyed. */ | |
616 | ||
617 | extern char flag_no_output; | |
618 | ||
93d45d9e JM |
619 | /* Nonzero means dump macros in some fashion; contains the 'D', 'M', |
620 | 'N' or 'U' of the command line switch. */ | |
63973df3 NB |
621 | |
622 | extern char flag_dump_macros; | |
623 | ||
624 | /* Nonzero means pass #include lines through to the output. */ | |
625 | ||
626 | extern char flag_dump_includes; | |
627 | ||
c0d578e6 GK |
628 | /* Nonzero means process PCH files while preprocessing. */ |
629 | ||
630 | extern bool flag_pch_preprocess; | |
631 | ||
17211ab5 GK |
632 | /* The file name to which we should write a precompiled header, or |
633 | NULL if no header will be written in this compile. */ | |
634 | ||
635 | extern const char *pch_file; | |
636 | ||
3df89291 NB |
637 | /* Nonzero if an ISO standard was selected. It rejects macros in the |
638 | user's namespace. */ | |
17211ab5 | 639 | |
3df89291 NB |
640 | extern int flag_iso; |
641 | ||
4078b403 | 642 | /* C/ObjC language option variables. */ |
b34c7881 | 643 | |
2683ed8d | 644 | |
4078b403 NB |
645 | /* Nonzero means allow type mismatches in conditional expressions; |
646 | just make their values `void'. */ | |
74ff4629 | 647 | |
4078b403 | 648 | extern int flag_cond_mismatch; |
6c36d76b | 649 | |
eaf299c6 | 650 | /* Nonzero means enable C89 Amendment 1 features. */ |
b8458e3e JM |
651 | |
652 | extern int flag_isoc94; | |
653 | ||
9f936c86 | 654 | /* Nonzero means use the ISO C99 (or later) dialect of C. */ |
ab76ca54 MM |
655 | |
656 | extern int flag_isoc99; | |
657 | ||
9f936c86 | 658 | /* Nonzero means use the ISO C11 (or later) dialect of C. */ |
2778d766 | 659 | |
48b0b196 | 660 | extern int flag_isoc11; |
2778d766 | 661 | |
9f936c86 JM |
662 | /* Nonzero means use the ISO C2X dialect of C. */ |
663 | ||
664 | extern int flag_isoc2x; | |
665 | ||
6614fd40 | 666 | /* Nonzero means that we have builtin functions, and main is an int. */ |
93e2382f JM |
667 | |
668 | extern int flag_hosted; | |
669 | ||
4078b403 NB |
670 | /* ObjC language option variables. */ |
671 | ||
672 | ||
4078b403 NB |
673 | /* Tells the compiler that this is a special run. Do not perform any |
674 | compiling, instead we are to test some platform dependent features | |
675 | and output a C header file with appropriate definitions. */ | |
676 | ||
677 | extern int print_struct_values; | |
678 | ||
abc88a08 | 679 | /* Tells the compiler what is the constant string class for ObjC. */ |
4078b403 | 680 | |
fd350d24 | 681 | extern const char *constant_string_class_name; |
4078b403 | 682 | |
4078b403 NB |
683 | |
684 | /* C++ language option variables. */ | |
685 | ||
a75f1574 JM |
686 | /* The reference version of the ABI for -Wabi. */ |
687 | ||
688 | extern int warn_abi_version; | |
4078b403 | 689 | |
62984918 | 690 | /* Return TRUE if one of {flag_abi_version,flag_abi_compat_version} is |
a75f1574 JM |
691 | less than N and the other is at least N. */ |
692 | #define abi_compat_version_crosses(N) \ | |
62984918 JM |
693 | (abi_version_at_least(N) \ |
694 | != (flag_abi_compat_version == 0 \ | |
695 | || flag_abi_compat_version >= (N))) | |
696 | ||
a75f1574 JM |
697 | /* Return TRUE if one of {flag_abi_version,warn_abi_version} is |
698 | less than N and the other is at least N, for use by -Wabi. */ | |
699 | #define abi_version_crosses(N) \ | |
700 | (abi_version_at_least(N) \ | |
701 | != (warn_abi_version == 0 \ | |
702 | || warn_abi_version >= (N))) | |
703 | ||
c1ae8be5 SM |
704 | /* The supported C++ dialects. */ |
705 | ||
706 | enum cxx_dialect { | |
129211bc | 707 | cxx_unset, |
97e3ad20 | 708 | /* C++98 with TC1 */ |
c1ae8be5 | 709 | cxx98, |
97e3ad20 JM |
710 | cxx03 = cxx98, |
711 | /* C++11 */ | |
712 | cxx0x, | |
552b8185 | 713 | cxx11 = cxx0x, |
028aee17 JM |
714 | /* C++14 */ |
715 | cxx14, | |
7b936140 | 716 | /* C++17 */ |
026a79f7 AS |
717 | cxx17, |
718 | /* C++2a (C++20?) */ | |
719 | cxx2a | |
c1ae8be5 | 720 | }; |
966541e3 | 721 | |
c1ae8be5 SM |
722 | /* The C++ dialect being used. C++98 is the default. */ |
723 | extern enum cxx_dialect cxx_dialect; | |
966541e3 | 724 | |
4078b403 NB |
725 | /* Maximum template instantiation depth. This limit is rather |
726 | arbitrary, but it exists to limit the time it takes to notice | |
17bc631c | 727 | excessively recursive template instantiations. */ |
4078b403 NB |
728 | |
729 | extern int max_tinst_depth; | |
ab76ca54 | 730 | |
7d882b83 ILT |
731 | /* Nonzero means that we should not issue warnings about problems that |
732 | occur when the code is executed, because the code being processed | |
733 | is not expected to be executed. This is set during parsing. This | |
734 | is used for cases like sizeof() and "0 ? a : b". This is a count, | |
735 | not a bool, because unexecuted expressions can nest. */ | |
25587e40 | 736 | |
7d882b83 | 737 | extern int c_inhibit_evaluation_warnings; |
25587e40 | 738 | |
148e4216 JM |
739 | /* Whether lexing has been completed, so subsequent preprocessor |
740 | errors should use the compiler's input_location. */ | |
741 | ||
742 | extern bool done_lexing; | |
743 | ||
ab76ca54 MM |
744 | /* C types are partitioned into three subsets: object, function, and |
745 | incomplete types. */ | |
746 | #define C_TYPE_OBJECT_P(type) \ | |
747 | (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type)) | |
748 | ||
749 | #define C_TYPE_INCOMPLETE_P(type) \ | |
750 | (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type) == 0) | |
751 | ||
752 | #define C_TYPE_FUNCTION_P(type) \ | |
753 | (TREE_CODE (type) == FUNCTION_TYPE) | |
754 | ||
755 | /* For convenience we define a single macro to identify the class of | |
756 | object or incomplete types. */ | |
757 | #define C_TYPE_OBJECT_OR_INCOMPLETE_P(type) \ | |
758 | (!C_TYPE_FUNCTION_P (type)) | |
759 | ||
c98cd5bf JM |
760 | struct visibility_flags |
761 | { | |
762 | unsigned inpragma : 1; /* True when in #pragma GCC visibility. */ | |
763 | unsigned inlines_hidden : 1; /* True when -finlineshidden in effect. */ | |
764 | }; | |
765 | ||
7a37fa90 MM |
766 | /* These enumerators are possible types of unsafe conversions. */ |
767 | enum conversion_safety { | |
768 | /* The conversion is safe. */ | |
769 | SAFE_CONVERSION = 0, | |
770 | /* Another type of conversion with problems. */ | |
771 | UNSAFE_OTHER, | |
772 | /* Conversion between signed and unsigned integers | |
773 | which are all warned about immediately, so this is unused. */ | |
774 | UNSAFE_SIGN, | |
775 | /* Conversions that reduce the precision of reals including conversions | |
776 | from reals to integers. */ | |
777 | UNSAFE_REAL, | |
778 | /* Conversions from complex to reals or integers, that discard imaginary | |
779 | component. */ | |
780 | UNSAFE_IMAGINARY | |
781 | }; | |
49b0aa18 | 782 | |
c98cd5bf JM |
783 | /* Global visibility options. */ |
784 | extern struct visibility_flags visibility_options; | |
785 | ||
349ae713 NB |
786 | /* Attribute table common to the C front ends. */ |
787 | extern const struct attribute_spec c_common_attribute_table[]; | |
788 | extern const struct attribute_spec c_common_format_attribute_table[]; | |
789 | ||
0ba8a114 | 790 | /* Pointer to function to lazily generate the VAR_DECL for __FUNCTION__ etc. |
2ce07e2d NS |
791 | ID is the identifier to use, NAME is the string. |
792 | TYPE_DEP indicates whether it depends on type of the function or not | |
793 | (i.e. __PRETTY_FUNCTION__). */ | |
794 | ||
c2255bc4 | 795 | extern tree (*make_fname_decl) (location_t, tree, int); |
35b1a6fa | 796 | |
bffad7f1 | 797 | /* In c-decl.c and cp/tree.c. FIXME. */ |
3ef0694c | 798 | extern void c_register_addr_space (const char *str, addr_space_t as); |
bffad7f1 SB |
799 | |
800 | /* In c-common.c. */ | |
5386338c | 801 | extern bool in_late_binary_op; |
36c5e70a | 802 | extern const char *c_addr_space_name (addr_space_t as); |
35b1a6fa | 803 | extern tree identifier_global_value (tree); |
3a636414 | 804 | extern tree c_linkage_bindings (tree); |
35b1a6fa AJ |
805 | extern void record_builtin_type (enum rid, const char *, tree); |
806 | extern tree build_void_list_node (void); | |
807 | extern void start_fname_decls (void); | |
808 | extern void finish_fname_decls (void); | |
809 | extern const char *fname_as_string (int); | |
3ba09659 | 810 | extern tree fname_decl (location_t, unsigned, tree); |
35b1a6fa | 811 | |
4c7bd361 | 812 | extern int check_user_alignment (const_tree, bool, bool); |
4227c9ad | 813 | extern bool check_function_arguments (location_t loc, const_tree, const_tree, |
2f687306 | 814 | int, tree *, vec<location_t> *); |
35b1a6fa AJ |
815 | extern void check_function_arguments_recurse (void (*) |
816 | (void *, tree, | |
817 | unsigned HOST_WIDE_INT), | |
818 | void *, tree, | |
819 | unsigned HOST_WIDE_INT); | |
79ce98bc | 820 | extern bool check_builtin_function_arguments (location_t, vec<location_t>, |
c6447c20 | 821 | tree, tree, int, tree *); |
1d249509 MS |
822 | extern void check_function_format (const_tree, tree, int, tree *, |
823 | vec<location_t> *); | |
81fea426 | 824 | extern bool attribute_fallthrough_p (tree); |
35b1a6fa AJ |
825 | extern tree handle_format_attribute (tree *, tree, tree, int, bool *); |
826 | extern tree handle_format_arg_attribute (tree *, tree, tree, int, bool *); | |
00abf86c MS |
827 | extern bool c_common_handle_option (size_t, const char *, HOST_WIDE_INT, int, |
828 | location_t, | |
5f20c657 | 829 | const struct cl_option_handlers *); |
acce4e77 | 830 | extern bool default_handle_c_option (size_t, const char *, int); |
ef4bddc2 | 831 | extern tree c_common_type_for_mode (machine_mode, int); |
35b1a6fa | 832 | extern tree c_common_type_for_size (unsigned int, int); |
ab22c1fa CF |
833 | extern tree c_common_fixed_point_type_for_size (unsigned int, unsigned int, |
834 | int, int); | |
12753674 | 835 | extern tree c_common_unsigned_type (tree); |
35b1a6fa AJ |
836 | extern tree c_common_signed_type (tree); |
837 | extern tree c_common_signed_or_unsigned_type (int, tree); | |
81f653d6 | 838 | extern void c_common_init_ts (void); |
38a4afee | 839 | extern tree c_build_bitfield_integer_type (unsigned HOST_WIDE_INT, int); |
3cd211af | 840 | extern enum conversion_safety unsafe_conversion_p (location_t, tree, tree, tree, |
68fca595 | 841 | bool); |
58f9752a | 842 | extern bool decl_with_nonnull_addr_p (const_tree); |
f9c59f7e | 843 | extern tree c_fully_fold (tree, bool, bool *, bool = false); |
e5a94231 | 844 | extern tree c_wrap_maybe_const (tree, bool); |
ba47d38d | 845 | extern tree c_common_truthvalue_conversion (location_t, tree); |
35b1a6fa | 846 | extern void c_apply_type_quals_to_decl (int, tree); |
296674db | 847 | extern tree c_sizeof_or_alignof_type (location_t, tree, bool, bool, int); |
c2255bc4 | 848 | extern tree c_alignof_expr (location_t, tree); |
7f4edbcb BS |
849 | /* Print an error message for invalid operands to arith operation CODE. |
850 | NOP_EXPR is used as a special case (see truthvalue_conversion). */ | |
745e411d | 851 | extern void binary_op_error (rich_location *, enum tree_code, tree, tree); |
35b1a6fa | 852 | extern tree fix_string_type (tree); |
68fca595 | 853 | extern tree convert_and_check (location_t, tree, tree); |
b2ca3702 | 854 | extern bool c_determine_visibility (tree); |
0af94e6f | 855 | extern bool vector_types_compatible_elements_p (tree, tree); |
6ec637a4 JJ |
856 | extern void mark_valid_location_for_stdc_pragma (bool); |
857 | extern bool valid_location_for_stdc_pragma_p (void); | |
858 | extern void set_float_const_decimal64 (void); | |
859 | extern void clear_float_const_decimal64 (void); | |
860 | extern bool float_const_decimal64_p (void); | |
ab76ca54 | 861 | |
a9aa2c3a NF |
862 | extern bool keyword_begins_type_specifier (enum rid); |
863 | extern bool keyword_is_storage_class_specifier (enum rid); | |
864 | extern bool keyword_is_type_qualifier (enum rid); | |
ba9e6dd5 | 865 | extern bool keyword_is_decl_specifier (enum rid); |
af63ba4b | 866 | extern unsigned max_align_t_align (void); |
e28d52cf | 867 | extern bool cxx_fundamental_alignment_p (unsigned); |
f04dda30 | 868 | extern bool pointer_to_zero_sized_aggr_p (tree); |
038b5cc0 MP |
869 | extern bool bool_promoted_to_int_p (tree); |
870 | extern tree fold_for_warn (tree); | |
871 | extern tree c_common_get_narrower (tree, int *); | |
b12b1915 | 872 | extern bool get_nonnull_operand (tree, unsigned HOST_WIDE_INT *); |
a9aa2c3a | 873 | |
296674db JM |
874 | #define c_sizeof(LOC, T) c_sizeof_or_alignof_type (LOC, T, true, false, 1) |
875 | #define c_alignof(LOC, T) c_sizeof_or_alignof_type (LOC, T, false, false, 1) | |
7f4edbcb | 876 | |
6715192c MLI |
877 | /* Subroutine of build_binary_op, used for certain operations. */ |
878 | extern tree shorten_binary_op (tree result_type, tree op0, tree op1, bool bitwise); | |
879 | ||
7f4edbcb BS |
880 | /* Subroutine of build_binary_op, used for comparison operations. |
881 | See if the operands have both been converted from subword integer types | |
882 | and, if so, perhaps change them both back to their original type. */ | |
393e8e8b MP |
883 | extern tree shorten_compare (location_t, tree *, tree *, tree *, |
884 | enum tree_code *); | |
7f4edbcb | 885 | |
fd9b0f32 PC |
886 | extern tree pointer_int_sum (location_t, enum tree_code, tree, tree, |
887 | bool = true); | |
50e60bc3 ZW |
888 | |
889 | /* Add qualifiers to a type, in the fashion for C. */ | |
e9e32ee6 | 890 | extern tree c_build_qualified_type (tree, int, tree = NULL_TREE, size_t = 0); |
50e60bc3 | 891 | |
7f4edbcb BS |
892 | /* Build tree nodes and builtin functions common to both C and C++ language |
893 | frontends. */ | |
35b1a6fa | 894 | extern void c_common_nodes_and_builtins (void); |
d3707adb | 895 | |
35b1a6fa | 896 | extern void disable_builtin_function (const char *); |
7d14c755 | 897 | |
3b2db49f MM |
898 | extern void set_compound_literal_name (tree decl); |
899 | ||
c2255bc4 | 900 | extern tree build_va_arg (location_t, tree, tree); |
7e8176d7 | 901 | |
c5fa0890 | 902 | extern const unsigned int c_family_lang_mask; |
7a9bf9a4 | 903 | extern unsigned int c_common_option_lang_mask (void); |
d723bb7c | 904 | extern void c_common_diagnostics_set_defaults (diagnostic_context *); |
7a9bf9a4 | 905 | extern bool c_common_complain_wrong_lang_p (const struct cl_option *); |
a75bfaa6 | 906 | extern void c_common_init_options_struct (struct gcc_options *); |
7a9bf9a4 | 907 | extern void c_common_init_options (unsigned int, struct cl_decoded_option *); |
35b1a6fa AJ |
908 | extern bool c_common_post_options (const char **); |
909 | extern bool c_common_init (void); | |
910 | extern void c_common_finish (void); | |
b37421c6 | 911 | extern void c_common_parse_file (void); |
1a817418 | 912 | extern FILE *get_dump_info (int, dump_flags_t *); |
4862826d | 913 | extern alias_set_type c_common_get_alias_set (tree); |
9649812a | 914 | extern void c_register_builtin_type (tree, const char*); |
58f9752a | 915 | extern bool c_promoting_integer_type_p (const_tree); |
e3455240 | 916 | extern bool self_promoting_args_p (const_tree); |
12ea3302 | 917 | extern tree strip_pointer_operator (tree); |
ba992967 | 918 | extern tree strip_pointer_or_array_types (tree); |
c5ff069d | 919 | extern HOST_WIDE_INT c_common_to_target_charset (HOST_WIDE_INT); |
d7e7759d | 920 | |
d1bd0ded GK |
921 | /* This is the basic parsing function. */ |
922 | extern void c_parse_file (void); | |
d1bd0ded | 923 | |
d7438551 AH |
924 | extern void c_parse_final_cleanups (void); |
925 | ||
ae499cce MM |
926 | /* These macros provide convenient access to the various _STMT nodes. */ |
927 | ||
325c3691 RH |
928 | /* Nonzero if a given STATEMENT_LIST represents the outermost binding |
929 | if a statement expression. */ | |
930 | #define STATEMENT_LIST_STMT_EXPR(NODE) \ | |
931 | TREE_LANG_FLAG_1 (STATEMENT_LIST_CHECK (NODE)) | |
174283a3 RH |
932 | |
933 | /* Nonzero if a label has been added to the statement list. */ | |
934 | #define STATEMENT_LIST_HAS_LABEL(NODE) \ | |
935 | TREE_LANG_FLAG_3 (STATEMENT_LIST_CHECK (NODE)) | |
325c3691 | 936 | |
928c19bb JM |
937 | /* C_MAYBE_CONST_EXPR accessors. */ |
938 | #define C_MAYBE_CONST_EXPR_PRE(NODE) \ | |
939 | TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 0) | |
940 | #define C_MAYBE_CONST_EXPR_EXPR(NODE) \ | |
941 | TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 1) | |
942 | #define C_MAYBE_CONST_EXPR_INT_OPERANDS(NODE) \ | |
943 | TREE_LANG_FLAG_0 (C_MAYBE_CONST_EXPR_CHECK (NODE)) | |
944 | #define C_MAYBE_CONST_EXPR_NON_CONST(NODE) \ | |
945 | TREE_LANG_FLAG_1 (C_MAYBE_CONST_EXPR_CHECK (NODE)) | |
946 | #define EXPR_INT_CONST_OPERANDS(EXPR) \ | |
947 | (INTEGRAL_TYPE_P (TREE_TYPE (EXPR)) \ | |
948 | && (TREE_CODE (EXPR) == INTEGER_CST \ | |
949 | || (TREE_CODE (EXPR) == C_MAYBE_CONST_EXPR \ | |
950 | && C_MAYBE_CONST_EXPR_INT_OPERANDS (EXPR)))) | |
951 | ||
0a7394bc MM |
952 | /* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */ |
953 | #define DECL_C_BIT_FIELD(NODE) \ | |
954 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1) | |
955 | #define SET_DECL_C_BIT_FIELD(NODE) \ | |
956 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 1) | |
957 | #define CLEAR_DECL_C_BIT_FIELD(NODE) \ | |
958 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0) | |
959 | ||
7c30b12a PC |
960 | /* True if the decl was an unnamed bitfield. */ |
961 | #define DECL_UNNAMED_BIT_FIELD(NODE) \ | |
962 | (DECL_C_BIT_FIELD (NODE) && !DECL_NAME (NODE)) | |
963 | ||
c2255bc4 AH |
964 | extern tree do_case (location_t, tree, tree); |
965 | extern tree build_stmt (location_t, enum tree_code, ...); | |
fb52b50a | 966 | extern tree build_real_imag_expr (location_t, enum tree_code, tree); |
f2c5f623 | 967 | |
ab76ca54 MM |
968 | /* These functions must be defined by each front-end which implements |
969 | a variant of the C language. They are used in c-common.c. */ | |
970 | ||
e51fbec3 | 971 | extern tree build_unary_op (location_t, enum tree_code, tree, bool); |
30af3a2b | 972 | extern tree build_binary_op (location_t, enum tree_code, tree, tree, bool); |
522ddfa2 | 973 | extern tree perform_integral_promotions (tree); |
ab76ca54 | 974 | |
d593cb3d MS |
975 | /* These functions must be defined by each front-end which implements |
976 | a variant of the C language. They are used by port files. */ | |
977 | ||
978 | extern tree default_conversion (tree); | |
979 | ||
ab76ca54 MM |
980 | /* Given two integer or real types, return the type for their sum. |
981 | Given two compatible ANSI C types, returns the merged type. */ | |
982 | ||
35b1a6fa | 983 | extern tree common_type (tree, tree); |
44835fdd | 984 | |
35b1a6fa | 985 | extern tree decl_constant_value (tree); |
56cb9733 | 986 | |
19552aa5 | 987 | /* Handle increment and decrement of boolean types. */ |
35b1a6fa | 988 | extern tree boolean_increment (enum tree_code, tree); |
19552aa5 | 989 | |
35b1a6fa | 990 | extern int case_compare (splay_tree_key, splay_tree_key); |
8f17b5c5 | 991 | |
c280b7ee | 992 | extern tree c_add_case_label (location_t, splay_tree, tree, tree, tree); |
058f0b9e | 993 | extern bool c_switch_covers_all_cases_p (splay_tree, tree); |
8f17b5c5 | 994 | |
c2255bc4 | 995 | extern tree build_function_call (location_t, tree, tree); |
c70eaeaf | 996 | |
81e5eca8 | 997 | extern tree build_function_call_vec (location_t, vec<location_t>, tree, |
c6447c20 RS |
998 | vec<tree, va_gc> *, vec<tree, va_gc> *, |
999 | tree = NULL_TREE); | |
bbbbb16a | 1000 | |
9771b263 | 1001 | extern tree resolve_overloaded_builtin (location_t, tree, vec<tree, va_gc> *); |
48ae6c13 | 1002 | |
6a3799eb | 1003 | extern tree finish_label_address_expr (tree, location_t); |
15b732b2 NB |
1004 | |
1005 | /* Same function prototype, but the C and C++ front ends have | |
1006 | different implementations. Used in c-common.c. */ | |
35b1a6fa | 1007 | extern tree lookup_label (tree); |
10e6657a | 1008 | extern tree lookup_name (tree); |
1e4ae551 | 1009 | extern bool lvalue_p (const_tree); |
15b732b2 | 1010 | |
f83c7f63 | 1011 | extern bool vector_targets_convertible_p (const_tree t1, const_tree t2); |
58f9752a | 1012 | extern bool vector_types_convertible_p (const_tree t1, const_tree t2, bool emit_lax_note); |
bedc293e | 1013 | extern tree c_build_vec_perm_expr (location_t, tree, tree, tree, bool = true); |
d8fcab68 | 1014 | extern tree c_build_vec_convert (location_t, tree, location_t, tree, bool = true); |
cc27e657 | 1015 | |
35b1a6fa | 1016 | extern void init_c_lex (void); |
81a75f0f | 1017 | |
35b1a6fa | 1018 | extern void c_cpp_builtins (cpp_reader *); |
ab442df7 | 1019 | extern void c_cpp_builtins_optimize_pragma (cpp_reader *, tree, tree); |
c24300ba DM |
1020 | extern bool c_cpp_diagnostic (cpp_reader *, enum cpp_diagnostic_level, |
1021 | enum cpp_warning_reason, rich_location *, | |
1022 | const char *, va_list *) | |
8a645150 | 1023 | ATTRIBUTE_GCC_DIAG(5,0); |
1f8d3e84 | 1024 | extern int c_common_has_attribute (cpp_reader *); |
76c3e73e | 1025 | |
7c475d11 JM |
1026 | extern bool parse_optimize_options (tree, bool); |
1027 | ||
731e8b38 MM |
1028 | /* Positive if an implicit `extern "C"' scope has just been entered; |
1029 | negative if such a scope has just been exited. */ | |
7876228d | 1030 | extern GTY(()) int pending_lang_change; |
731e8b38 | 1031 | |
0e5921e8 ZW |
1032 | /* Information recorded about each file examined during compilation. */ |
1033 | ||
1034 | struct c_fileinfo | |
1035 | { | |
1036 | int time; /* Time spent in the file. */ | |
5d709b00 ZW |
1037 | |
1038 | /* Flags used only by C++. | |
1039 | INTERFACE_ONLY nonzero means that we are in an "interface" section | |
1040 | of the compiler. INTERFACE_UNKNOWN nonzero means we cannot trust | |
1041 | the value of INTERFACE_ONLY. If INTERFACE_UNKNOWN is zero and | |
1042 | INTERFACE_ONLY is zero, it means that we are responsible for | |
1043 | exporting definitions that others might need. */ | |
1044 | short interface_only; | |
0e5921e8 ZW |
1045 | short interface_unknown; |
1046 | }; | |
1047 | ||
35b1a6fa AJ |
1048 | struct c_fileinfo *get_fileinfo (const char *); |
1049 | extern void dump_time_statistics (void); | |
1050 | ||
1051 | extern bool c_dump_tree (void *, tree); | |
1052 | ||
3a5b9284 RH |
1053 | extern void verify_sequence_points (tree); |
1054 | ||
79e7b1fe JJ |
1055 | extern tree fold_offsetof (tree, tree = size_type_node, |
1056 | tree_code ctx = ERROR_MARK); | |
ee8a6a3e | 1057 | |
aab038d5 | 1058 | extern int complete_array_type (tree *, tree, bool); |
6d900107 | 1059 | extern void complete_flexible_array_elts (tree); |
aab038d5 | 1060 | |
48ae6c13 RH |
1061 | extern tree builtin_type_for_size (int, bool); |
1062 | ||
30cd1c5d AS |
1063 | extern void c_common_mark_addressable_vec (tree); |
1064 | ||
770e5a2e | 1065 | extern void set_underlying_type (tree); |
56898e43 | 1066 | extern bool user_facing_original_type_p (const_tree); |
040d18b6 | 1067 | extern void record_types_used_by_current_var_decl (tree); |
9771b263 DN |
1068 | extern vec<tree, va_gc> *make_tree_vector (void); |
1069 | extern void release_tree_vector (vec<tree, va_gc> *); | |
1070 | extern vec<tree, va_gc> *make_tree_vector_single (tree); | |
1071 | extern vec<tree, va_gc> *make_tree_vector_from_list (tree); | |
f1644724 | 1072 | extern vec<tree, va_gc> *make_tree_vector_from_ctor (tree); |
9771b263 | 1073 | extern vec<tree, va_gc> *make_tree_vector_copy (const vec<tree, va_gc> *); |
2a67bec2 | 1074 | |
793c625f MG |
1075 | /* Used for communication between c_common_type_for_mode and |
1076 | c_register_builtin_type. */ | |
1077 | extern GTY(()) tree registered_builtin_types; | |
1078 | ||
15c98b2e ES |
1079 | /* Read SOURCE_DATE_EPOCH from environment to have a deterministic |
1080 | timestamp to replace embedded current dates to get reproducible | |
1081 | results. Returns -1 if SOURCE_DATE_EPOCH is not defined. */ | |
1082 | extern time_t cb_get_source_date_epoch (cpp_reader *pfile); | |
1083 | ||
1084 | /* The value (as a unix timestamp) corresponds to date | |
1085 | "Dec 31 9999 23:59:59 UTC", which is the latest date that __DATE__ and | |
1086 | __TIME__ can store. */ | |
1087 | #define MAX_SOURCE_DATE_EPOCH HOST_WIDE_INT_C (253402300799) | |
1088 | ||
cb18fd07 DM |
1089 | /* Callback for libcpp for offering spelling suggestions for misspelled |
1090 | directives. */ | |
1091 | extern const char *cb_get_suggestion (cpp_reader *, const char *, | |
1092 | const char *const *); | |
1093 | ||
88fa5555 DM |
1094 | extern GTY(()) string_concat_db *g_string_concat_db; |
1095 | ||
e5106e27 DM |
1096 | class substring_loc; |
1097 | extern const char *c_get_substring_location (const substring_loc &substr_loc, | |
1098 | location_t *out_loc); | |
88fa5555 | 1099 | |
7c34ced1 | 1100 | /* In c-gimplify.c */ |
6de9cd9a | 1101 | extern void c_genericize (tree); |
726a989a | 1102 | extern int c_gimplify_expr (tree *, gimple_seq *, gimple_seq *); |
c2255bc4 | 1103 | extern tree c_build_bind_expr (location_t, tree, tree); |
6de9cd9a | 1104 | |
de67c4c3 DM |
1105 | /* In c-lex.c. */ |
1106 | extern enum cpp_ttype | |
1107 | conflict_marker_get_final_tok_kind (enum cpp_ttype tok1_kind); | |
1108 | ||
c0d578e6 | 1109 | /* In c-pch.c */ |
35b1a6fa | 1110 | extern void pch_init (void); |
1efcb8c6 | 1111 | extern void pch_cpp_save_state (void); |
35b1a6fa AJ |
1112 | extern int c_common_valid_pch (cpp_reader *pfile, const char *name, int fd); |
1113 | extern void c_common_read_pch (cpp_reader *pfile, const char *name, int fd, | |
1114 | const char *orig); | |
1115 | extern void c_common_write_pch (void); | |
18c81520 | 1116 | extern void c_common_no_more_pch (void); |
bc4071dd | 1117 | extern void c_common_pch_pragma (cpp_reader *pfile, const char *); |
3fd30b88 GK |
1118 | |
1119 | /* In *-checksum.c */ | |
1120 | extern const unsigned char executable_checksum[16]; | |
c0d578e6 | 1121 | |
ab442df7 MM |
1122 | /* In c-cppbuiltin.c */ |
1123 | extern void builtin_define_std (const char *macro); | |
35b1a6fa | 1124 | extern void builtin_define_with_value (const char *, const char *, int); |
7049e4eb CB |
1125 | extern void builtin_define_with_int_value (const char *, HOST_WIDE_INT); |
1126 | extern void builtin_define_type_sizeof (const char *, tree); | |
35b1a6fa | 1127 | extern void c_stddef_cpp_builtins (void); |
0e50b624 | 1128 | extern void fe_file_change (const line_map_ordinary *); |
32129a17 DM |
1129 | extern void c_parse_error (const char *, enum cpp_ttype, tree, unsigned char, |
1130 | rich_location *richloc); | |
9d10c9a9 NB |
1131 | |
1132 | /* In c-ppoutput.c */ | |
35b1a6fa AJ |
1133 | extern void init_pp_output (FILE *); |
1134 | extern void preprocess_file (cpp_reader *); | |
0e50b624 | 1135 | extern void pp_file_change (const line_map_ordinary *); |
8e9ea4d7 | 1136 | extern void pp_dir_change (cpp_reader *, const char *); |
104f8784 | 1137 | extern bool check_missing_format_attribute (tree, tree); |
17211ab5 | 1138 | |
953ff289 | 1139 | /* In c-omp.c */ |
eece7fe5 | 1140 | typedef wide_int_bitmask omp_clause_mask; |
acd15a28 | 1141 | |
8848828b | 1142 | #define OMP_CLAUSE_MASK_1 omp_clause_mask (1) |
acf0174b JJ |
1143 | |
1144 | enum c_omp_clause_split | |
1145 | { | |
1146 | C_OMP_CLAUSE_SPLIT_TARGET = 0, | |
1147 | C_OMP_CLAUSE_SPLIT_TEAMS, | |
1148 | C_OMP_CLAUSE_SPLIT_DISTRIBUTE, | |
1149 | C_OMP_CLAUSE_SPLIT_PARALLEL, | |
1150 | C_OMP_CLAUSE_SPLIT_FOR, | |
1151 | C_OMP_CLAUSE_SPLIT_SIMD, | |
1152 | C_OMP_CLAUSE_SPLIT_COUNT, | |
d9a6bd32 | 1153 | C_OMP_CLAUSE_SPLIT_SECTIONS = C_OMP_CLAUSE_SPLIT_FOR, |
554a530f JJ |
1154 | C_OMP_CLAUSE_SPLIT_TASKLOOP = C_OMP_CLAUSE_SPLIT_FOR, |
1155 | C_OMP_CLAUSE_SPLIT_LOOP = C_OMP_CLAUSE_SPLIT_FOR | |
acf0174b JJ |
1156 | }; |
1157 | ||
77886428 CP |
1158 | enum c_omp_region_type |
1159 | { | |
1160 | C_ORT_OMP = 1 << 0, | |
5e9d6aa4 JK |
1161 | C_ORT_ACC = 1 << 1, |
1162 | C_ORT_DECLARE_SIMD = 1 << 2, | |
1d793c34 | 1163 | C_ORT_OMP_DECLARE_SIMD = C_ORT_OMP | C_ORT_DECLARE_SIMD |
77886428 CP |
1164 | }; |
1165 | ||
c2255bc4 | 1166 | extern tree c_finish_omp_master (location_t, tree); |
28567c40 | 1167 | extern tree c_finish_omp_taskgroup (location_t, tree, tree); |
d9a6bd32 JJ |
1168 | extern tree c_finish_omp_critical (location_t, tree, tree, tree); |
1169 | extern tree c_finish_omp_ordered (location_t, tree, tree); | |
c2255bc4 | 1170 | extern void c_finish_omp_barrier (location_t); |
20906c66 | 1171 | extern tree c_finish_omp_atomic (location_t, enum tree_code, enum tree_code, |
28567c40 JJ |
1172 | tree, tree, tree, tree, tree, bool, |
1173 | enum omp_memory_order, bool = false); | |
1174 | extern bool c_omp_depend_t_p (tree); | |
1175 | extern void c_finish_omp_depobj (location_t, tree, enum omp_clause_depend_kind, | |
1176 | tree); | |
1177 | extern void c_finish_omp_flush (location_t, int); | |
c2255bc4 | 1178 | extern void c_finish_omp_taskwait (location_t); |
20906c66 | 1179 | extern void c_finish_omp_taskyield (location_t); |
acf0174b | 1180 | extern tree c_finish_omp_for (location_t, enum tree_code, tree, tree, tree, |
28567c40 | 1181 | tree, tree, tree, tree, bool); |
e01d41e5 JJ |
1182 | extern bool c_omp_check_loop_iv (tree, tree, walk_tree_lh); |
1183 | extern bool c_omp_check_loop_iv_exprs (location_t, tree, tree, tree, tree, | |
1184 | walk_tree_lh); | |
41dbbb37 | 1185 | extern tree c_finish_oacc_wait (location_t, tree, tree); |
e7ff0319 | 1186 | extern tree c_oacc_split_loop_clauses (tree, tree *, bool); |
acf0174b JJ |
1187 | extern void c_omp_split_clauses (location_t, enum tree_code, omp_clause_mask, |
1188 | tree, tree *); | |
1189 | extern tree c_omp_declare_simd_clauses_to_numbers (tree, tree); | |
1190 | extern void c_omp_declare_simd_clauses_to_decls (tree, tree); | |
59bc434a | 1191 | extern bool c_omp_predefined_variable (tree); |
953ff289 | 1192 | extern enum omp_clause_default_kind c_omp_predetermined_sharing (tree); |
94e7f906 JJ |
1193 | extern tree c_omp_check_context_selector (location_t, tree); |
1194 | extern tree c_omp_get_context_selector (tree, const char *, const char *); | |
20de9568 | 1195 | extern void c_omp_mark_declare_variant (location_t, tree, tree); |
953ff289 | 1196 | |
56300785 JJ |
1197 | /* Return next tree in the chain for chain_next walking of tree nodes. */ |
1198 | static inline tree | |
1199 | c_tree_chain_next (tree t) | |
1200 | { | |
1201 | /* TREE_CHAIN of a type is TYPE_STUB_DECL, which is different | |
1202 | kind of object, never a long chain of nodes. Prefer | |
1203 | TYPE_NEXT_VARIANT for types. */ | |
1204 | if (CODE_CONTAINS_STRUCT (TREE_CODE (t), TS_TYPE_COMMON)) | |
1205 | return TYPE_NEXT_VARIANT (t); | |
1206 | /* Otherwise, if there is TREE_CHAIN, return it. */ | |
1207 | if (CODE_CONTAINS_STRUCT (TREE_CODE (t), TS_COMMON)) | |
1208 | return TREE_CHAIN (t); | |
1209 | return NULL; | |
1210 | } | |
1211 | ||
0a35513e AH |
1212 | /* Mask used by tm_stmt_attr. */ |
1213 | #define TM_STMT_ATTR_OUTER 2 | |
1214 | #define TM_STMT_ATTR_ATOMIC 4 | |
1215 | #define TM_STMT_ATTR_RELAXED 8 | |
1216 | ||
0a35513e AH |
1217 | /* Mask used by tm_attr_to_mask and tm_mask_to_attr. Note that these |
1218 | are ordered specifically such that more restrictive attributes are | |
1219 | at lower bit positions. This fact is known by the C++ tm attribute | |
1220 | inheritance code such that least bit extraction (mask & -mask) results | |
1221 | in the most restrictive attribute. */ | |
1222 | #define TM_ATTR_SAFE 1 | |
1223 | #define TM_ATTR_CALLABLE 2 | |
1224 | #define TM_ATTR_PURE 4 | |
1225 | #define TM_ATTR_IRREVOCABLE 8 | |
1226 | #define TM_ATTR_MAY_CANCEL_OUTER 16 | |
1227 | ||
3ce4f9e4 ESR |
1228 | /* A suffix-identifier value doublet that represents user-defined literals |
1229 | for C++-0x. */ | |
2d7aa578 ESR |
1230 | enum overflow_type { |
1231 | OT_UNDERFLOW = -1, | |
1232 | OT_NONE, | |
1233 | OT_OVERFLOW | |
1234 | }; | |
1235 | ||
3ce4f9e4 ESR |
1236 | struct GTY(()) tree_userdef_literal { |
1237 | struct tree_base base; | |
1238 | tree suffix_id; | |
1239 | tree value; | |
1240 | tree num_string; | |
2d7aa578 | 1241 | enum overflow_type overflow; |
3ce4f9e4 ESR |
1242 | }; |
1243 | ||
1244 | #define USERDEF_LITERAL_SUFFIX_ID(NODE) \ | |
1245 | (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->suffix_id) | |
1246 | ||
1247 | #define USERDEF_LITERAL_VALUE(NODE) \ | |
1248 | (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->value) | |
1249 | ||
2d7aa578 ESR |
1250 | #define USERDEF_LITERAL_OVERFLOW(NODE) \ |
1251 | (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->overflow) | |
1252 | ||
3ce4f9e4 ESR |
1253 | #define USERDEF_LITERAL_NUM_STRING(NODE) \ |
1254 | (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->num_string) | |
1255 | ||
1256 | #define USERDEF_LITERAL_TYPE(NODE) \ | |
1257 | (TREE_TYPE (USERDEF_LITERAL_VALUE (NODE))) | |
1258 | ||
2d7aa578 ESR |
1259 | extern tree build_userdef_literal (tree suffix_id, tree value, |
1260 | enum overflow_type overflow, | |
1261 | tree num_string); | |
3ce4f9e4 | 1262 | |
f17a223d | 1263 | extern bool convert_vector_to_array_for_subscript (location_t, tree *, tree); |
7edaa4d2 | 1264 | |
a212e43f MG |
1265 | /* Possibe cases of scalar_to_vector conversion. */ |
1266 | enum stv_conv { | |
688010ba | 1267 | stv_error, /* Error occurred. */ |
a212e43f MG |
1268 | stv_nothing, /* Nothing happened. */ |
1269 | stv_firstarg, /* First argument must be expanded. */ | |
1270 | stv_secondarg /* Second argument must be expanded. */ | |
1271 | }; | |
1272 | ||
1273 | extern enum stv_conv scalar_to_vector (location_t loc, enum tree_code code, | |
1274 | tree op0, tree op1, bool); | |
1275 | ||
d60f1706 BI |
1276 | extern tree find_inv_trees (tree *, int *, void *); |
1277 | extern tree replace_inv_trees (tree *, int *, void *); | |
5e9d6aa4 | 1278 | |
1807ffc1 | 1279 | extern bool reject_gcc_builtin (const_tree, location_t = UNKNOWN_LOCATION); |
28a8cef1 MS |
1280 | extern bool valid_array_size_p (location_t, const_tree, tree, bool = true); |
1281 | extern void invalid_array_size_error (location_t, cst_size_error, | |
1282 | const_tree, const_tree); | |
c3388e62 | 1283 | |
038b5cc0 MP |
1284 | /* In c-warn.c. */ |
1285 | extern void constant_expression_warning (tree); | |
1286 | extern void constant_expression_error (tree); | |
3cd211af | 1287 | extern void overflow_warning (location_t, tree, tree = NULL_TREE); |
038b5cc0 MP |
1288 | extern void warn_logical_operator (location_t, enum tree_code, tree, |
1289 | enum tree_code, tree, enum tree_code, tree); | |
a14feb3c DM |
1290 | extern void warn_tautological_cmp (const op_location_t &, enum tree_code, |
1291 | tree, tree); | |
038b5cc0 MP |
1292 | extern void warn_logical_not_parentheses (location_t, enum tree_code, tree, |
1293 | tree); | |
1294 | extern bool warn_if_unused_value (const_tree, location_t); | |
0444aa9c | 1295 | extern bool strict_aliasing_warning (location_t, tree, tree); |
038b5cc0 MP |
1296 | extern void sizeof_pointer_memaccess_warning (location_t *, tree, |
1297 | vec<tree, va_gc> *, tree *, | |
1298 | bool (*) (tree, tree)); | |
1299 | extern void check_main_parameter_types (tree decl); | |
1300 | extern void warnings_for_convert_and_check (location_t, tree, tree, tree); | |
c280b7ee | 1301 | extern void c_do_switch_warnings (splay_tree, location_t, tree, tree, bool); |
038b5cc0 | 1302 | extern void warn_for_omitted_condop (location_t, tree); |
e9b9fa4c | 1303 | extern bool warn_for_restrict (unsigned, tree *, unsigned); |
420183d9 | 1304 | extern void warn_for_address_or_pointer_of_packed_member (tree, tree); |
038b5cc0 MP |
1305 | |
1306 | /* Places where an lvalue, or modifiable lvalue, may be required. | |
1307 | Used to select diagnostic messages in lvalue_error and | |
1308 | readonly_error. */ | |
1309 | enum lvalue_use { | |
1310 | lv_assign, | |
1311 | lv_increment, | |
1312 | lv_decrement, | |
1313 | lv_addressof, | |
1314 | lv_asm | |
1315 | }; | |
1316 | ||
1317 | extern void lvalue_error (location_t, enum lvalue_use); | |
1318 | extern void invalid_indirection_error (location_t, tree, ref_operator); | |
1319 | extern void readonly_error (location_t, tree, enum lvalue_use); | |
1320 | extern void warn_array_subscript_with_type_char (location_t, tree); | |
1321 | extern void warn_about_parentheses (location_t, | |
1322 | enum tree_code, | |
1323 | enum tree_code, tree, | |
1324 | enum tree_code, tree); | |
1325 | extern void warn_for_unused_label (tree label); | |
1326 | extern void warn_for_div_by_zero (location_t, tree divisor); | |
1327 | extern void warn_for_memset (location_t, tree, tree, int); | |
1328 | extern void warn_for_sign_compare (location_t, | |
1329 | tree orig_op0, tree orig_op1, | |
1330 | tree op0, tree op1, | |
1331 | tree result_type, | |
1332 | enum tree_code resultcode); | |
1333 | extern void do_warn_double_promotion (tree, tree, tree, const char *, | |
1334 | location_t); | |
1335 | extern void do_warn_unused_parameter (tree); | |
1336 | extern void record_locally_defined_typedef (tree); | |
1337 | extern void maybe_record_typedef_use (tree); | |
1338 | extern void maybe_warn_unused_local_typedefs (void); | |
1339 | extern void maybe_warn_bool_compare (location_t, enum tree_code, tree, tree); | |
1340 | extern bool maybe_warn_shift_overflow (location_t, tree, tree); | |
1341 | extern void warn_duplicated_cond_add_or_warn (location_t, tree, vec<tree> **); | |
1342 | extern bool diagnose_mismatched_attributes (tree, tree); | |
2ebd93e1 | 1343 | extern tree do_warn_duplicated_branches_r (tree *, int *, void *); |
3e2becc4 MP |
1344 | extern void warn_for_multistatement_macros (location_t, location_t, |
1345 | location_t, enum rid); | |
038b5cc0 | 1346 | |
b12b1915 MP |
1347 | /* In c-attribs.c. */ |
1348 | extern bool attribute_takes_identifier_p (const_tree); | |
1349 | extern tree handle_unused_attribute (tree *, tree, tree, int, bool *); | |
1350 | extern int parse_tm_stmt_attr (tree, int); | |
1351 | extern int tm_attr_to_mask (tree); | |
1352 | extern tree tm_mask_to_attr (int); | |
1353 | extern tree find_tm_attribute (tree); | |
2674fa47 | 1354 | extern const struct attribute_spec::exclusions attr_cold_hot_exclusions[]; |
1bf32c11 MP |
1355 | extern const struct attribute_spec::exclusions attr_noreturn_exclusions[]; |
1356 | extern tree handle_noreturn_attribute (tree *, tree, tree, int, bool *); | |
b12b1915 | 1357 | |
23db6ced MS |
1358 | /* In c-format.c. */ |
1359 | extern bool valid_format_string_type_p (tree); | |
1360 | ||
1d249509 MS |
1361 | /* A bitmap of flags to positional_argument. */ |
1362 | enum posargflags { | |
1363 | /* Consider positional attribute argument value zero valid. */ | |
1364 | POSARG_ZERO = 1, | |
1365 | /* Consider positional attribute argument value valid if it refers | |
1366 | to the ellipsis (i.e., beyond the last typed argument). */ | |
1367 | POSARG_ELLIPSIS = 2 | |
1368 | }; | |
1369 | ||
1370 | extern tree positional_argument (const_tree, const_tree, tree, tree_code, | |
1371 | int = 0, int = posargflags ()); | |
1372 | ||
56d8ffc1 JG |
1373 | extern enum flt_eval_method |
1374 | excess_precision_mode_join (enum flt_eval_method, enum flt_eval_method); | |
1375 | ||
1376 | extern int c_flt_eval_method (bool ts18661_p); | |
45b2222a | 1377 | extern void add_no_sanitize_value (tree node, unsigned int flags); |
56d8ffc1 | 1378 | |
85204e23 | 1379 | extern void maybe_add_include_fixit (rich_location *, const char *, bool); |
62e1c678 DM |
1380 | extern void maybe_suggest_missing_token_insertion (rich_location *richloc, |
1381 | enum cpp_ttype token_type, | |
1382 | location_t prev_token_loc); | |
bec1da64 MS |
1383 | extern tree braced_lists_to_strings (tree, tree); |
1384 | ||
98f08eb8 | 1385 | extern bool has_attribute (location_t, tree, tree, tree (*)(tree)); |
eea77d1f | 1386 | |
895aa8e1 DM |
1387 | #if CHECKING_P |
1388 | namespace selftest { | |
b6f43128 DM |
1389 | /* Declarations for specific families of tests within c-family, |
1390 | by source file, in alphabetical order. */ | |
895aa8e1 | 1391 | extern void c_format_c_tests (void); |
10fcc142 | 1392 | extern void c_indentation_c_tests (void); |
9a004410 | 1393 | extern void c_pretty_print_c_tests (void); |
c79144f8 | 1394 | extern void c_spellcheck_cc_tests (void); |
b6f43128 DM |
1395 | |
1396 | /* The entrypoint for running all of the above tests. */ | |
1397 | extern void c_family_tests (void); | |
895aa8e1 DM |
1398 | } // namespace selftest |
1399 | #endif /* #if CHECKING_P */ | |
1400 | ||
88657302 | 1401 | #endif /* ! GCC_C_COMMON_H */ |