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7f4edbcb | 1 | /* Definitions for c-common.c. |
517cbe13 | 2 | Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998, |
7bd11157 | 3 | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011 |
66647d44 | 4 | Free Software Foundation, Inc. |
7f4edbcb | 5 | |
1322177d | 6 | This file is part of GCC. |
7f4edbcb | 7 | |
1322177d LB |
8 | GCC is free software; you can redistribute it and/or modify it under |
9 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 10 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 11 | version. |
7f4edbcb | 12 | |
1322177d LB |
13 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | for more details. | |
7f4edbcb BS |
17 | |
18 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
19 | along with GCC; see the file COPYING3. If not see |
20 | <http://www.gnu.org/licenses/>. */ | |
7f4edbcb | 21 | |
0e5921e8 ZW |
22 | #ifndef GCC_C_COMMON_H |
23 | #define GCC_C_COMMON_H | |
24 | ||
8f17b5c5 | 25 | #include "splay-tree.h" |
2a967f3d | 26 | #include "cpplib.h" |
d07605f5 | 27 | #include "ggc.h" |
8f17b5c5 | 28 | |
59cc9210 SB |
29 | /* In order for the format checking to accept the C frontend |
30 | diagnostic framework extensions, you must include this file before | |
718f9c0f | 31 | diagnostic-core.h, not after. The C front end formats are a subset of those |
59cc9210 SB |
32 | for C++, so they are the appropriate set to use in common code; |
33 | cp-tree.h overrides this for C++. */ | |
718f9c0f MLI |
34 | #if defined(GCC_DIAGNOSTIC_CORE_H) |
35 | #error \ | |
36 | In order for the format checking to accept the C front end diagnostic \ | |
37 | framework extensions, you must include this file before diagnostic-core.h \ | |
38 | never after. | |
39 | #endif | |
59cc9210 SB |
40 | #ifndef GCC_DIAG_STYLE |
41 | #define GCC_DIAG_STYLE __gcc_cdiag__ | |
42 | #endif | |
43 | #include "diagnostic-core.h" | |
44 | ||
f2c5f623 | 45 | /* Usage of TREE_LANG_FLAG_?: |
325c3691 | 46 | 0: TREE_NEGATED_INT (in INTEGER_CST). |
f2c5f623 | 47 | IDENTIFIER_MARKED (used by search routines). |
f2c5f623 | 48 | DECL_PRETTY_FUNCTION_P (in VAR_DECL) |
928c19bb | 49 | C_MAYBE_CONST_EXPR_INT_OPERANDS (in C_MAYBE_CONST_EXPR, for C) |
f2c5f623 | 50 | 1: C_DECLARED_LABEL_FLAG (in LABEL_DECL) |
325c3691 | 51 | STATEMENT_LIST_STMT_EXPR (in STATEMENT_LIST) |
928c19bb | 52 | C_MAYBE_CONST_EXPR_NON_CONST (in C_MAYBE_CONST_EXPR, for C) |
6de9cd9a | 53 | 2: unused |
174283a3 | 54 | 3: STATEMENT_LIST_HAS_LABEL (in STATEMENT_LIST) |
325c3691 | 55 | 4: unused |
f2c5f623 BC |
56 | */ |
57 | ||
0e5921e8 | 58 | /* Reserved identifiers. This is the union of all the keywords for C, |
40f03658 | 59 | C++, and Objective-C. All the type modifiers have to be in one |
0e5921e8 ZW |
60 | block at the beginning, because they are used as mask bits. There |
61 | are 27 type modifiers; if we add many more we will have to redesign | |
62 | the mask mechanism. */ | |
f09f1de5 MM |
63 | |
64 | enum rid | |
65 | { | |
0e5921e8 | 66 | /* Modifiers: */ |
2ba84f36 | 67 | /* C, in empirical order of frequency. */ |
0e5921e8 ZW |
68 | RID_STATIC = 0, |
69 | RID_UNSIGNED, RID_LONG, RID_CONST, RID_EXTERN, | |
70 | RID_REGISTER, RID_TYPEDEF, RID_SHORT, RID_INLINE, | |
71 | RID_VOLATILE, RID_SIGNED, RID_AUTO, RID_RESTRICT, | |
72 | ||
73 | /* C extensions */ | |
ab22c1fa | 74 | RID_COMPLEX, RID_THREAD, RID_SAT, |
0e5921e8 ZW |
75 | |
76 | /* C++ */ | |
77 | RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE, | |
78 | ||
1973201f NP |
79 | /* ObjC ("PQ" reserved words - they do not appear after a '@' and |
80 | are keywords only in specific contexts) */ | |
b8363a24 | 81 | RID_IN, RID_OUT, RID_INOUT, RID_BYCOPY, RID_BYREF, RID_ONEWAY, |
0e5921e8 | 82 | |
668ea4b1 IS |
83 | /* ObjC ("PATTR" reserved words - they do not appear after a '@' |
84 | and are keywords only as property attributes) */ | |
200290f2 NP |
85 | RID_GETTER, RID_SETTER, |
86 | RID_READONLY, RID_READWRITE, | |
87 | RID_ASSIGN, RID_RETAIN, RID_COPY, | |
200290f2 | 88 | RID_NONATOMIC, |
668ea4b1 | 89 | |
fa5da7de JM |
90 | /* C (reserved and imaginary types not implemented, so any use is a |
91 | syntax error) */ | |
92 | RID_IMAGINARY, | |
93 | ||
0e5921e8 ZW |
94 | /* C */ |
95 | RID_INT, RID_CHAR, RID_FLOAT, RID_DOUBLE, RID_VOID, | |
a6766312 | 96 | RID_INT128, |
0e5921e8 ZW |
97 | RID_ENUM, RID_STRUCT, RID_UNION, RID_IF, RID_ELSE, |
98 | RID_WHILE, RID_DO, RID_FOR, RID_SWITCH, RID_CASE, | |
99 | RID_DEFAULT, RID_BREAK, RID_CONTINUE, RID_RETURN, RID_GOTO, | |
100 | RID_SIZEOF, | |
101 | ||
102 | /* C extensions */ | |
103 | RID_ASM, RID_TYPEOF, RID_ALIGNOF, RID_ATTRIBUTE, RID_VA_ARG, | |
da5b307a JM |
104 | RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_CHOOSE_EXPR, |
105 | RID_TYPES_COMPATIBLE_P, | |
9a8ce21f | 106 | RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128, |
ab22c1fa | 107 | RID_FRACT, RID_ACCUM, |
0e5921e8 | 108 | |
eea1139b ILT |
109 | /* This means to warn that this is a C++ keyword, and then treat it |
110 | as a normal identifier. */ | |
111 | RID_CXX_COMPAT_WARN, | |
112 | ||
0ba8a114 NS |
113 | /* Too many ways of getting the name of a function as a string */ |
114 | RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME, | |
115 | ||
1973201f NP |
116 | /* C++ (some of these are keywords in Objective-C as well, but only |
117 | if they appear after a '@') */ | |
0e5921e8 ZW |
118 | RID_BOOL, RID_WCHAR, RID_CLASS, |
119 | RID_PUBLIC, RID_PRIVATE, RID_PROTECTED, | |
120 | RID_TEMPLATE, RID_NULL, RID_CATCH, | |
121 | RID_DELETE, RID_FALSE, RID_NAMESPACE, | |
c22cacf3 MS |
122 | RID_NEW, RID_OFFSETOF, RID_OPERATOR, |
123 | RID_THIS, RID_THROW, RID_TRUE, | |
124 | RID_TRY, RID_TYPENAME, RID_TYPEID, | |
b6baa67d | 125 | RID_USING, RID_CHAR16, RID_CHAR32, |
0e5921e8 ZW |
126 | |
127 | /* casts */ | |
128 | RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST, | |
129 | ||
cb68ec50 PC |
130 | /* C++ extensions */ |
131 | RID_HAS_NOTHROW_ASSIGN, RID_HAS_NOTHROW_CONSTRUCTOR, | |
132 | RID_HAS_NOTHROW_COPY, RID_HAS_TRIVIAL_ASSIGN, | |
133 | RID_HAS_TRIVIAL_CONSTRUCTOR, RID_HAS_TRIVIAL_COPY, | |
134 | RID_HAS_TRIVIAL_DESTRUCTOR, RID_HAS_VIRTUAL_DESTRUCTOR, | |
135 | RID_IS_ABSTRACT, RID_IS_BASE_OF, | |
136 | RID_IS_CONVERTIBLE_TO, RID_IS_CLASS, | |
137 | RID_IS_EMPTY, RID_IS_ENUM, | |
138 | RID_IS_POD, RID_IS_POLYMORPHIC, | |
c32097d8 | 139 | RID_IS_STD_LAYOUT, RID_IS_TRIVIAL, |
2b08f2c5 | 140 | RID_IS_UNION, RID_IS_LITERAL_TYPE, |
cb68ec50 | 141 | |
218f0015 | 142 | /* C++0x */ |
0a766368 | 143 | RID_CONSTEXPR, RID_DECLTYPE, RID_NOEXCEPT, RID_NULLPTR, RID_STATIC_ASSERT, |
218f0015 | 144 | |
1973201f NP |
145 | /* Objective-C ("AT" reserved words - they are only keywords when |
146 | they follow '@') */ | |
3a3589b4 | 147 | RID_AT_ENCODE, RID_AT_END, |
0e5921e8 | 148 | RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS, |
c37d8c30 | 149 | RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC, RID_AT_PACKAGE, |
c22cacf3 | 150 | RID_AT_PROTOCOL, RID_AT_SELECTOR, |
264fa2db | 151 | RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH, |
92902b1b | 152 | RID_AT_FINALLY, RID_AT_SYNCHRONIZED, |
668ea4b1 | 153 | RID_AT_OPTIONAL, RID_AT_REQUIRED, RID_AT_PROPERTY, |
da57d1b9 | 154 | RID_AT_SYNTHESIZE, RID_AT_DYNAMIC, |
264fa2db | 155 | RID_AT_INTERFACE, |
0e5921e8 ZW |
156 | RID_AT_IMPLEMENTATION, |
157 | ||
36c5e70a BE |
158 | /* Named address support, mapping the keyword to a particular named address |
159 | number. Named address space 0 is reserved for the generic address. If | |
160 | there are more than 254 named addresses, the addr_space_t type will need | |
161 | to be grown from an unsigned char to unsigned short. */ | |
162 | RID_ADDR_SPACE_0, /* generic address */ | |
163 | RID_ADDR_SPACE_1, | |
164 | RID_ADDR_SPACE_2, | |
165 | RID_ADDR_SPACE_3, | |
166 | RID_ADDR_SPACE_4, | |
167 | RID_ADDR_SPACE_5, | |
168 | RID_ADDR_SPACE_6, | |
169 | RID_ADDR_SPACE_7, | |
170 | RID_ADDR_SPACE_8, | |
171 | RID_ADDR_SPACE_9, | |
172 | RID_ADDR_SPACE_10, | |
173 | RID_ADDR_SPACE_11, | |
174 | RID_ADDR_SPACE_12, | |
175 | RID_ADDR_SPACE_13, | |
176 | RID_ADDR_SPACE_14, | |
177 | RID_ADDR_SPACE_15, | |
178 | ||
179 | RID_FIRST_ADDR_SPACE = RID_ADDR_SPACE_0, | |
180 | RID_LAST_ADDR_SPACE = RID_ADDR_SPACE_15, | |
181 | ||
0e5921e8 ZW |
182 | RID_MAX, |
183 | ||
184 | RID_FIRST_MODIFIER = RID_STATIC, | |
b8363a24 ZW |
185 | RID_LAST_MODIFIER = RID_ONEWAY, |
186 | ||
14c2101d JM |
187 | RID_FIRST_CXX0X = RID_CONSTEXPR, |
188 | RID_LAST_CXX0X = RID_STATIC_ASSERT, | |
b8363a24 ZW |
189 | RID_FIRST_AT = RID_AT_ENCODE, |
190 | RID_LAST_AT = RID_AT_IMPLEMENTATION, | |
191 | RID_FIRST_PQ = RID_IN, | |
668ea4b1 | 192 | RID_LAST_PQ = RID_ONEWAY, |
200290f2 NP |
193 | RID_FIRST_PATTR = RID_GETTER, |
194 | RID_LAST_PATTR = RID_NONATOMIC | |
f09f1de5 MM |
195 | }; |
196 | ||
b8363a24 | 197 | #define OBJC_IS_AT_KEYWORD(rid) \ |
3f75a254 JM |
198 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_AT && \ |
199 | (unsigned int) (rid) <= (unsigned int) RID_LAST_AT) | |
b8363a24 ZW |
200 | |
201 | #define OBJC_IS_PQ_KEYWORD(rid) \ | |
3f75a254 JM |
202 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PQ && \ |
203 | (unsigned int) (rid) <= (unsigned int) RID_LAST_PQ) | |
b8363a24 | 204 | |
668ea4b1 IS |
205 | #define OBJC_IS_PATTR_KEYWORD(rid) \ |
206 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PATTR && \ | |
207 | (unsigned int) (rid) <= (unsigned int) RID_LAST_PATTR) | |
208 | ||
1973201f NP |
209 | /* OBJC_IS_CXX_KEYWORD recognizes the 'CXX_OBJC' keywords (such as |
210 | 'class') which are shared in a subtle way between Objective-C and | |
211 | C++. When the lexer is lexing in Objective-C/Objective-C++, if it | |
212 | finds '@' followed by one of these identifiers (eg, '@class'), it | |
213 | recognizes the whole as an Objective-C keyword. If the identifier | |
214 | is found elsewhere, it follows the rules of the C/C++ language. | |
215 | */ | |
216 | #define OBJC_IS_CXX_KEYWORD(rid) \ | |
217 | (rid == RID_CLASS \ | |
218 | || rid == RID_PUBLIC || rid == RID_PROTECTED || rid == RID_PRIVATE \ | |
219 | || rid == RID_TRY || rid == RID_THROW || rid == RID_CATCH) | |
220 | ||
f09f1de5 MM |
221 | /* The elements of `ridpointers' are identifier nodes for the reserved |
222 | type names and storage classes. It is indexed by a RID_... value. */ | |
3f75a254 | 223 | extern GTY ((length ("(int) RID_MAX"))) tree *ridpointers; |
f09f1de5 | 224 | |
7f4edbcb BS |
225 | /* Standard named or nameless data types of the C compiler. */ |
226 | ||
227 | enum c_tree_index | |
228 | { | |
b6baa67d KVH |
229 | CTI_CHAR16_TYPE, |
230 | CTI_CHAR32_TYPE, | |
7f4edbcb | 231 | CTI_WCHAR_TYPE, |
207bf79d | 232 | CTI_UNDERLYING_WCHAR_TYPE, |
c5ab7f91 | 233 | CTI_WINT_TYPE, |
cd732418 JM |
234 | CTI_SIGNED_SIZE_TYPE, /* For format checking only. */ |
235 | CTI_UNSIGNED_PTRDIFF_TYPE, /* For format checking only. */ | |
b15ad712 JM |
236 | CTI_INTMAX_TYPE, |
237 | CTI_UINTMAX_TYPE, | |
7f4edbcb BS |
238 | CTI_WIDEST_INT_LIT_TYPE, |
239 | CTI_WIDEST_UINT_LIT_TYPE, | |
240 | ||
207bf79d JM |
241 | /* Types for <stdint.h>, that may not be defined on all |
242 | targets. */ | |
243 | CTI_SIG_ATOMIC_TYPE, | |
244 | CTI_INT8_TYPE, | |
245 | CTI_INT16_TYPE, | |
246 | CTI_INT32_TYPE, | |
247 | CTI_INT64_TYPE, | |
248 | CTI_UINT8_TYPE, | |
249 | CTI_UINT16_TYPE, | |
250 | CTI_UINT32_TYPE, | |
251 | CTI_UINT64_TYPE, | |
252 | CTI_INT_LEAST8_TYPE, | |
253 | CTI_INT_LEAST16_TYPE, | |
254 | CTI_INT_LEAST32_TYPE, | |
255 | CTI_INT_LEAST64_TYPE, | |
256 | CTI_UINT_LEAST8_TYPE, | |
257 | CTI_UINT_LEAST16_TYPE, | |
258 | CTI_UINT_LEAST32_TYPE, | |
259 | CTI_UINT_LEAST64_TYPE, | |
260 | CTI_INT_FAST8_TYPE, | |
261 | CTI_INT_FAST16_TYPE, | |
262 | CTI_INT_FAST32_TYPE, | |
263 | CTI_INT_FAST64_TYPE, | |
264 | CTI_UINT_FAST8_TYPE, | |
265 | CTI_UINT_FAST16_TYPE, | |
266 | CTI_UINT_FAST32_TYPE, | |
267 | CTI_UINT_FAST64_TYPE, | |
268 | CTI_INTPTR_TYPE, | |
269 | CTI_UINTPTR_TYPE, | |
270 | ||
7f4edbcb | 271 | CTI_CHAR_ARRAY_TYPE, |
b6baa67d KVH |
272 | CTI_CHAR16_ARRAY_TYPE, |
273 | CTI_CHAR32_ARRAY_TYPE, | |
7f4edbcb BS |
274 | CTI_WCHAR_ARRAY_TYPE, |
275 | CTI_INT_ARRAY_TYPE, | |
276 | CTI_STRING_TYPE, | |
277 | CTI_CONST_STRING_TYPE, | |
278 | ||
19552aa5 | 279 | /* Type for boolean expressions (bool in C++, int in C). */ |
de7df9eb JM |
280 | CTI_TRUTHVALUE_TYPE, |
281 | CTI_TRUTHVALUE_TRUE, | |
282 | CTI_TRUTHVALUE_FALSE, | |
283 | ||
7f4edbcb | 284 | CTI_DEFAULT_FUNCTION_TYPE, |
7f4edbcb | 285 | |
2ba84f36 | 286 | /* These are not types, but we have to look them up all the time. */ |
0ba8a114 NS |
287 | CTI_FUNCTION_NAME_DECL, |
288 | CTI_PRETTY_FUNCTION_NAME_DECL, | |
289 | CTI_C99_FUNCTION_NAME_DECL, | |
290 | CTI_SAVED_FUNCTION_NAME_DECLS, | |
c22cacf3 | 291 | |
ae499cce MM |
292 | CTI_VOID_ZERO, |
293 | ||
b2f97e4a MM |
294 | CTI_NULL, |
295 | ||
7f4edbcb BS |
296 | CTI_MAX |
297 | }; | |
298 | ||
5950c3c9 BE |
299 | #define C_CPP_HASHNODE(id) \ |
300 | (&(((struct c_common_identifier *) (id))->node)) | |
d75d71e0 ILT |
301 | #define C_RID_CODE(id) \ |
302 | ((enum rid) (((struct c_common_identifier *) (id))->node.rid_code)) | |
303 | #define C_SET_RID_CODE(id, code) \ | |
304 | (((struct c_common_identifier *) (id))->node.rid_code = (unsigned char) code) | |
2a967f3d NB |
305 | |
306 | /* Identifier part common to the C front ends. Inherits from | |
307 | tree_identifier, despite appearances. */ | |
d1b38208 | 308 | struct GTY(()) c_common_identifier { |
2a967f3d | 309 | struct tree_common common; |
17211ab5 | 310 | struct cpp_hashnode node; |
2a967f3d NB |
311 | }; |
312 | ||
eea1139b ILT |
313 | /* An entry in the reserved keyword table. */ |
314 | ||
315 | struct c_common_resword | |
316 | { | |
317 | const char *const word; | |
318 | ENUM_BITFIELD(rid) const rid : 16; | |
319 | const unsigned int disable : 16; | |
320 | }; | |
321 | ||
322 | /* Disable mask. Keywords are disabled if (reswords[i].disable & | |
323 | mask) is _true_. Thus for keywords which are present in all | |
324 | languages the disable field is zero. */ | |
325 | ||
326 | #define D_CONLY 0x001 /* C only (not in C++). */ | |
327 | #define D_CXXONLY 0x002 /* C++ only (not in C). */ | |
328 | #define D_C99 0x004 /* In C, C99 only. */ | |
329 | #define D_CXX0X 0x008 /* In C++, C++0X only. */ | |
330 | #define D_EXT 0x010 /* GCC extension. */ | |
331 | #define D_EXT89 0x020 /* GCC extension incorporated in C99. */ | |
332 | #define D_ASM 0x040 /* Disabled by -fno-asm. */ | |
333 | #define D_OBJC 0x080 /* In Objective C and neither C nor C++. */ | |
334 | #define D_CXX_OBJC 0x100 /* In Objective C, and C++, but not C. */ | |
335 | #define D_CXXWARN 0x200 /* In C warn with -Wcxx-compat. */ | |
336 | ||
337 | /* The reserved keyword table. */ | |
338 | extern const struct c_common_resword c_common_reswords[]; | |
339 | ||
340 | /* The number of items in the reserved keyword table. */ | |
341 | extern const unsigned int num_c_common_reswords; | |
342 | ||
b6baa67d KVH |
343 | #define char16_type_node c_global_trees[CTI_CHAR16_TYPE] |
344 | #define char32_type_node c_global_trees[CTI_CHAR32_TYPE] | |
7f4edbcb | 345 | #define wchar_type_node c_global_trees[CTI_WCHAR_TYPE] |
207bf79d | 346 | #define underlying_wchar_type_node c_global_trees[CTI_UNDERLYING_WCHAR_TYPE] |
c5ab7f91 | 347 | #define wint_type_node c_global_trees[CTI_WINT_TYPE] |
cd732418 JM |
348 | #define signed_size_type_node c_global_trees[CTI_SIGNED_SIZE_TYPE] |
349 | #define unsigned_ptrdiff_type_node c_global_trees[CTI_UNSIGNED_PTRDIFF_TYPE] | |
b15ad712 JM |
350 | #define intmax_type_node c_global_trees[CTI_INTMAX_TYPE] |
351 | #define uintmax_type_node c_global_trees[CTI_UINTMAX_TYPE] | |
7f4edbcb BS |
352 | #define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE] |
353 | #define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE] | |
354 | ||
207bf79d JM |
355 | #define sig_atomic_type_node c_global_trees[CTI_SIG_ATOMIC_TYPE] |
356 | #define int8_type_node c_global_trees[CTI_INT8_TYPE] | |
357 | #define int16_type_node c_global_trees[CTI_INT16_TYPE] | |
358 | #define int32_type_node c_global_trees[CTI_INT32_TYPE] | |
359 | #define int64_type_node c_global_trees[CTI_INT64_TYPE] | |
360 | #define uint8_type_node c_global_trees[CTI_UINT8_TYPE] | |
361 | #define uint16_type_node c_global_trees[CTI_UINT16_TYPE] | |
362 | #define c_uint32_type_node c_global_trees[CTI_UINT32_TYPE] | |
363 | #define c_uint64_type_node c_global_trees[CTI_UINT64_TYPE] | |
364 | #define int_least8_type_node c_global_trees[CTI_INT_LEAST8_TYPE] | |
365 | #define int_least16_type_node c_global_trees[CTI_INT_LEAST16_TYPE] | |
366 | #define int_least32_type_node c_global_trees[CTI_INT_LEAST32_TYPE] | |
367 | #define int_least64_type_node c_global_trees[CTI_INT_LEAST64_TYPE] | |
368 | #define uint_least8_type_node c_global_trees[CTI_UINT_LEAST8_TYPE] | |
369 | #define uint_least16_type_node c_global_trees[CTI_UINT_LEAST16_TYPE] | |
370 | #define uint_least32_type_node c_global_trees[CTI_UINT_LEAST32_TYPE] | |
371 | #define uint_least64_type_node c_global_trees[CTI_UINT_LEAST64_TYPE] | |
372 | #define int_fast8_type_node c_global_trees[CTI_INT_FAST8_TYPE] | |
373 | #define int_fast16_type_node c_global_trees[CTI_INT_FAST16_TYPE] | |
374 | #define int_fast32_type_node c_global_trees[CTI_INT_FAST32_TYPE] | |
375 | #define int_fast64_type_node c_global_trees[CTI_INT_FAST64_TYPE] | |
376 | #define uint_fast8_type_node c_global_trees[CTI_UINT_FAST8_TYPE] | |
377 | #define uint_fast16_type_node c_global_trees[CTI_UINT_FAST16_TYPE] | |
378 | #define uint_fast32_type_node c_global_trees[CTI_UINT_FAST32_TYPE] | |
379 | #define uint_fast64_type_node c_global_trees[CTI_UINT_FAST64_TYPE] | |
380 | #define intptr_type_node c_global_trees[CTI_INTPTR_TYPE] | |
381 | #define uintptr_type_node c_global_trees[CTI_UINTPTR_TYPE] | |
382 | ||
de7df9eb JM |
383 | #define truthvalue_type_node c_global_trees[CTI_TRUTHVALUE_TYPE] |
384 | #define truthvalue_true_node c_global_trees[CTI_TRUTHVALUE_TRUE] | |
385 | #define truthvalue_false_node c_global_trees[CTI_TRUTHVALUE_FALSE] | |
19552aa5 | 386 | |
7f4edbcb | 387 | #define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE] |
b6baa67d KVH |
388 | #define char16_array_type_node c_global_trees[CTI_CHAR16_ARRAY_TYPE] |
389 | #define char32_array_type_node c_global_trees[CTI_CHAR32_ARRAY_TYPE] | |
7f4edbcb BS |
390 | #define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE] |
391 | #define int_array_type_node c_global_trees[CTI_INT_ARRAY_TYPE] | |
392 | #define string_type_node c_global_trees[CTI_STRING_TYPE] | |
393 | #define const_string_type_node c_global_trees[CTI_CONST_STRING_TYPE] | |
394 | ||
395 | #define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE] | |
7f4edbcb | 396 | |
0ba8a114 NS |
397 | #define function_name_decl_node c_global_trees[CTI_FUNCTION_NAME_DECL] |
398 | #define pretty_function_name_decl_node c_global_trees[CTI_PRETTY_FUNCTION_NAME_DECL] | |
399 | #define c99_function_name_decl_node c_global_trees[CTI_C99_FUNCTION_NAME_DECL] | |
400 | #define saved_function_name_decls c_global_trees[CTI_SAVED_FUNCTION_NAME_DECLS] | |
63ad61ed | 401 | |
ae499cce MM |
402 | /* A node for `((void) 0)'. */ |
403 | #define void_zero_node c_global_trees[CTI_VOID_ZERO] | |
404 | ||
b2f97e4a MM |
405 | /* The node for C++ `__null'. */ |
406 | #define null_node c_global_trees[CTI_NULL] | |
407 | ||
e2500fed | 408 | extern GTY(()) tree c_global_trees[CTI_MAX]; |
ab76ca54 | 409 | |
e0a21ab9 KH |
410 | /* In a RECORD_TYPE, a sorted array of the fields of the type, not a |
411 | tree for size reasons. */ | |
a9429e29 | 412 | struct GTY((variable_size)) sorted_fields_type { |
d07605f5 AP |
413 | int len; |
414 | tree GTY((length ("%h.len"))) elts[1]; | |
415 | }; | |
416 | ||
8f17b5c5 MM |
417 | /* Mark which labels are explicitly declared. |
418 | These may be shadowed, and may be referenced from nested functions. */ | |
419 | #define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label) | |
420 | ||
ab76ca54 MM |
421 | typedef enum c_language_kind |
422 | { | |
37fa72e9 NB |
423 | clk_c = 0, /* C90, C94 or C99 */ |
424 | clk_objc = 1, /* clk_c with ObjC features. */ | |
425 | clk_cxx = 2, /* ANSI/ISO C++ */ | |
426 | clk_objcxx = 3 /* clk_cxx with ObjC features. */ | |
21c7361e | 427 | } |
ab76ca54 MM |
428 | c_language_kind; |
429 | ||
37fa72e9 NB |
430 | /* To test for a specific language use c_language, defined by each |
431 | front end. For "ObjC features" or "not C++" use the macros. */ | |
432 | extern c_language_kind c_language; | |
433 | ||
15a15e8d RH |
434 | #define c_dialect_cxx() ((c_language & clk_cxx) != 0) |
435 | #define c_dialect_objc() ((c_language & clk_objc) != 0) | |
37fa72e9 | 436 | |
dd865ef6 SZ |
437 | /* The various name of operator that appears in error messages. */ |
438 | typedef enum ref_operator { | |
439 | /* NULL */ | |
440 | RO_NULL, | |
441 | /* array indexing */ | |
442 | RO_ARRAY_INDEXING, | |
443 | /* unary * */ | |
444 | RO_UNARY_STAR, | |
445 | /* -> */ | |
446 | RO_ARROW, | |
447 | /* implicit conversion */ | |
448 | RO_IMPLICIT_CONVERSION | |
449 | } ref_operator; | |
450 | ||
ae499cce MM |
451 | /* Information about a statement tree. */ |
452 | ||
d1b38208 | 453 | struct GTY(()) stmt_tree_s { |
35fd3193 | 454 | /* The current statement list being collected. */ |
325c3691 RH |
455 | tree x_cur_stmt_list; |
456 | ||
da7d8304 | 457 | /* In C++, Nonzero if we should treat statements as full |
ae499cce MM |
458 | expressions. In particular, this variable is no-zero if at the |
459 | end of a statement we should destroy any temporaries created | |
460 | during that statement. Similarly, if, at the end of a block, we | |
461 | should destroy any local variables in this block. Normally, this | |
da7d8304 | 462 | variable is nonzero, since those are the normal semantics of |
ae499cce MM |
463 | C++. |
464 | ||
465 | However, in order to represent aggregate initialization code as | |
466 | tree structure, we use statement-expressions. The statements | |
467 | within the statement expression should not result in cleanups | |
21c7361e | 468 | being run until the entire enclosing statement is complete. |
ae499cce MM |
469 | |
470 | This flag has no effect in C. */ | |
21c7361e | 471 | int stmts_are_full_exprs_p; |
ae499cce MM |
472 | }; |
473 | ||
474 | typedef struct stmt_tree_s *stmt_tree; | |
475 | ||
476 | /* Global state pertinent to the current function. Some C dialects | |
477 | extend this structure with additional fields. */ | |
478 | ||
d1b38208 | 479 | struct GTY(()) c_language_function { |
ae499cce MM |
480 | /* While we are parsing the function, this contains information |
481 | about the statement-tree that we are building. */ | |
482 | struct stmt_tree_s x_stmt_tree; | |
483 | }; | |
484 | ||
35fd3193 | 485 | /* When building a statement-tree, this is the current statement list |
325c3691 | 486 | being collected. It's TREE_CHAIN is a back-pointer to the previous |
35fd3193 | 487 | statement list. */ |
ae499cce | 488 | |
325c3691 | 489 | #define cur_stmt_list (current_stmt_tree ()->x_cur_stmt_list) |
8f17b5c5 MM |
490 | |
491 | /* Language-specific hooks. */ | |
492 | ||
4684cd27 MM |
493 | /* If non-NULL, this function is called after a precompile header file |
494 | is loaded. */ | |
495 | extern void (*lang_post_pch_load) (void); | |
496 | ||
f75fbaf7 ZW |
497 | extern void push_file_scope (void); |
498 | extern void pop_file_scope (void); | |
35b1a6fa | 499 | extern stmt_tree current_stmt_tree (void); |
325c3691 | 500 | extern tree push_stmt_list (void); |
325c3691 | 501 | extern tree pop_stmt_list (tree); |
35b1a6fa | 502 | extern tree add_stmt (tree); |
325c3691 | 503 | extern void push_cleanup (tree, tree, bool); |
953ff289 DN |
504 | extern tree pushdecl_top_level (tree); |
505 | extern tree pushdecl (tree); | |
32e8bb8e | 506 | extern tree build_modify_expr (location_t, tree, tree, enum tree_code, |
c2255bc4 | 507 | location_t, tree, tree); |
dd865ef6 | 508 | extern tree build_indirect_ref (location_t, tree, ref_operator); |
35b1a6fa | 509 | |
3c79fa86 | 510 | extern int c_expand_decl (tree); |
c1e14513 | 511 | |
d07605f5 | 512 | extern int field_decl_cmp (const void *, const void *); |
c22cacf3 MS |
513 | extern void resort_sorted_fields (void *, void *, gt_pointer_operator, |
514 | void *); | |
58f9752a | 515 | extern bool has_c_linkage (const_tree decl); |
17211ab5 | 516 | \f |
4078b403 NB |
517 | /* Switches common to the C front ends. */ |
518 | ||
63973df3 NB |
519 | /* Nonzero means don't output line number information. */ |
520 | ||
521 | extern char flag_no_line_commands; | |
522 | ||
523 | /* Nonzero causes -E output not to be done, but directives such as | |
524 | #define that have side effects are still obeyed. */ | |
525 | ||
526 | extern char flag_no_output; | |
527 | ||
93d45d9e JM |
528 | /* Nonzero means dump macros in some fashion; contains the 'D', 'M', |
529 | 'N' or 'U' of the command line switch. */ | |
63973df3 NB |
530 | |
531 | extern char flag_dump_macros; | |
532 | ||
533 | /* Nonzero means pass #include lines through to the output. */ | |
534 | ||
535 | extern char flag_dump_includes; | |
536 | ||
c0d578e6 GK |
537 | /* Nonzero means process PCH files while preprocessing. */ |
538 | ||
539 | extern bool flag_pch_preprocess; | |
540 | ||
17211ab5 GK |
541 | /* The file name to which we should write a precompiled header, or |
542 | NULL if no header will be written in this compile. */ | |
543 | ||
544 | extern const char *pch_file; | |
545 | ||
3df89291 NB |
546 | /* Nonzero if an ISO standard was selected. It rejects macros in the |
547 | user's namespace. */ | |
17211ab5 | 548 | |
3df89291 NB |
549 | extern int flag_iso; |
550 | ||
c22cacf3 | 551 | /* Warn about #pragma directives that are not recognized. */ |
4078b403 | 552 | |
c22cacf3 | 553 | extern int warn_unknown_pragmas; /* Tri state variable. */ |
4078b403 | 554 | |
4078b403 NB |
555 | /* Warn about format/argument anomalies in calls to formatted I/O functions |
556 | (*printf, *scanf, strftime, strfmon, etc.). */ | |
ab76ca54 MM |
557 | |
558 | extern int warn_format; | |
559 | ||
b34c7881 | 560 | |
4078b403 | 561 | /* C/ObjC language option variables. */ |
b34c7881 | 562 | |
2683ed8d | 563 | |
4078b403 NB |
564 | /* Nonzero means allow type mismatches in conditional expressions; |
565 | just make their values `void'. */ | |
74ff4629 | 566 | |
4078b403 | 567 | extern int flag_cond_mismatch; |
6c36d76b | 568 | |
eaf299c6 | 569 | /* Nonzero means enable C89 Amendment 1 features. */ |
b8458e3e JM |
570 | |
571 | extern int flag_isoc94; | |
572 | ||
2778d766 | 573 | /* Nonzero means use the ISO C99 (or C1X) dialect of C. */ |
ab76ca54 MM |
574 | |
575 | extern int flag_isoc99; | |
576 | ||
2778d766 JM |
577 | /* Nonzero means use the ISO C1X dialect of C. */ |
578 | ||
579 | extern int flag_isoc1x; | |
580 | ||
6614fd40 | 581 | /* Nonzero means that we have builtin functions, and main is an int. */ |
93e2382f JM |
582 | |
583 | extern int flag_hosted; | |
584 | ||
4078b403 NB |
585 | /* ObjC language option variables. */ |
586 | ||
587 | ||
4078b403 NB |
588 | /* Tells the compiler that this is a special run. Do not perform any |
589 | compiling, instead we are to test some platform dependent features | |
590 | and output a C header file with appropriate definitions. */ | |
591 | ||
592 | extern int print_struct_values; | |
593 | ||
abc88a08 | 594 | /* Tells the compiler what is the constant string class for ObjC. */ |
4078b403 | 595 | |
fd350d24 | 596 | extern const char *constant_string_class_name; |
4078b403 | 597 | |
4078b403 NB |
598 | |
599 | /* C++ language option variables. */ | |
600 | ||
601 | ||
4078b403 NB |
602 | /* Nonzero means generate separate instantiation control files and |
603 | juggle them at link time. */ | |
604 | ||
605 | extern int flag_use_repository; | |
606 | ||
c1ae8be5 SM |
607 | /* The supported C++ dialects. */ |
608 | ||
609 | enum cxx_dialect { | |
610 | /* C++98 */ | |
611 | cxx98, | |
612 | /* Experimental features that are likely to become part of | |
613 | C++0x. */ | |
614 | cxx0x | |
615 | }; | |
966541e3 | 616 | |
c1ae8be5 SM |
617 | /* The C++ dialect being used. C++98 is the default. */ |
618 | extern enum cxx_dialect cxx_dialect; | |
966541e3 | 619 | |
4078b403 NB |
620 | /* Maximum template instantiation depth. This limit is rather |
621 | arbitrary, but it exists to limit the time it takes to notice | |
622 | infinite template instantiations. */ | |
623 | ||
624 | extern int max_tinst_depth; | |
ab76ca54 | 625 | |
7d882b83 ILT |
626 | /* Nonzero means that we should not issue warnings about problems that |
627 | occur when the code is executed, because the code being processed | |
628 | is not expected to be executed. This is set during parsing. This | |
629 | is used for cases like sizeof() and "0 ? a : b". This is a count, | |
630 | not a bool, because unexecuted expressions can nest. */ | |
25587e40 | 631 | |
7d882b83 | 632 | extern int c_inhibit_evaluation_warnings; |
25587e40 | 633 | |
148e4216 JM |
634 | /* Whether lexing has been completed, so subsequent preprocessor |
635 | errors should use the compiler's input_location. */ | |
636 | ||
637 | extern bool done_lexing; | |
638 | ||
ab76ca54 MM |
639 | /* C types are partitioned into three subsets: object, function, and |
640 | incomplete types. */ | |
641 | #define C_TYPE_OBJECT_P(type) \ | |
642 | (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type)) | |
643 | ||
644 | #define C_TYPE_INCOMPLETE_P(type) \ | |
645 | (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type) == 0) | |
646 | ||
647 | #define C_TYPE_FUNCTION_P(type) \ | |
648 | (TREE_CODE (type) == FUNCTION_TYPE) | |
649 | ||
650 | /* For convenience we define a single macro to identify the class of | |
651 | object or incomplete types. */ | |
652 | #define C_TYPE_OBJECT_OR_INCOMPLETE_P(type) \ | |
653 | (!C_TYPE_FUNCTION_P (type)) | |
654 | ||
c98cd5bf JM |
655 | struct visibility_flags |
656 | { | |
657 | unsigned inpragma : 1; /* True when in #pragma GCC visibility. */ | |
658 | unsigned inlines_hidden : 1; /* True when -finlineshidden in effect. */ | |
659 | }; | |
660 | ||
661 | /* Global visibility options. */ | |
662 | extern struct visibility_flags visibility_options; | |
663 | ||
349ae713 NB |
664 | /* Attribute table common to the C front ends. */ |
665 | extern const struct attribute_spec c_common_attribute_table[]; | |
666 | extern const struct attribute_spec c_common_format_attribute_table[]; | |
667 | ||
0ba8a114 | 668 | /* Pointer to function to lazily generate the VAR_DECL for __FUNCTION__ etc. |
2ce07e2d NS |
669 | ID is the identifier to use, NAME is the string. |
670 | TYPE_DEP indicates whether it depends on type of the function or not | |
671 | (i.e. __PRETTY_FUNCTION__). */ | |
672 | ||
c2255bc4 | 673 | extern tree (*make_fname_decl) (location_t, tree, int); |
35b1a6fa | 674 | |
bffad7f1 | 675 | /* In c-decl.c and cp/tree.c. FIXME. */ |
3ef0694c | 676 | extern void c_register_addr_space (const char *str, addr_space_t as); |
bffad7f1 SB |
677 | |
678 | /* In c-common.c. */ | |
5386338c | 679 | extern bool in_late_binary_op; |
36c5e70a | 680 | extern const char *c_addr_space_name (addr_space_t as); |
35b1a6fa AJ |
681 | extern tree identifier_global_value (tree); |
682 | extern void record_builtin_type (enum rid, const char *, tree); | |
683 | extern tree build_void_list_node (void); | |
684 | extern void start_fname_decls (void); | |
685 | extern void finish_fname_decls (void); | |
686 | extern const char *fname_as_string (int); | |
3ba09659 | 687 | extern tree fname_decl (location_t, unsigned, tree); |
35b1a6fa | 688 | |
94a0dd7b | 689 | extern void check_function_arguments (tree, int, tree *, tree); |
35b1a6fa AJ |
690 | extern void check_function_arguments_recurse (void (*) |
691 | (void *, tree, | |
692 | unsigned HOST_WIDE_INT), | |
693 | void *, tree, | |
694 | unsigned HOST_WIDE_INT); | |
83322951 | 695 | extern bool check_builtin_function_arguments (tree, int, tree *); |
94a0dd7b | 696 | extern void check_function_format (tree, int, tree *); |
35b1a6fa AJ |
697 | extern void set_Wformat (int); |
698 | extern tree handle_format_attribute (tree *, tree, tree, int, bool *); | |
699 | extern tree handle_format_arg_attribute (tree *, tree, tree, int, bool *); | |
564a129d | 700 | extern bool attribute_takes_identifier_p (const_tree); |
a4d8c676 | 701 | extern bool c_common_handle_option (size_t, const char *, int, int, location_t, |
5f20c657 | 702 | const struct cl_option_handlers *); |
35b1a6fa AJ |
703 | extern tree c_common_type_for_mode (enum machine_mode, int); |
704 | extern tree c_common_type_for_size (unsigned int, int); | |
ab22c1fa CF |
705 | extern tree c_common_fixed_point_type_for_size (unsigned int, unsigned int, |
706 | int, int); | |
12753674 | 707 | extern tree c_common_unsigned_type (tree); |
35b1a6fa AJ |
708 | extern tree c_common_signed_type (tree); |
709 | extern tree c_common_signed_or_unsigned_type (int, tree); | |
38a4afee | 710 | extern tree c_build_bitfield_integer_type (unsigned HOST_WIDE_INT, int); |
58f9752a | 711 | extern bool decl_with_nonnull_addr_p (const_tree); |
928c19bb JM |
712 | extern tree c_fully_fold (tree, bool, bool *); |
713 | extern tree decl_constant_value_for_optimization (tree); | |
e5a94231 | 714 | extern tree c_wrap_maybe_const (tree, bool); |
928c19bb | 715 | extern tree c_save_expr (tree); |
ba47d38d | 716 | extern tree c_common_truthvalue_conversion (location_t, tree); |
35b1a6fa | 717 | extern void c_apply_type_quals_to_decl (int, tree); |
c2255bc4 AH |
718 | extern tree c_sizeof_or_alignof_type (location_t, tree, bool, int); |
719 | extern tree c_alignof_expr (location_t, tree); | |
7f4edbcb BS |
720 | /* Print an error message for invalid operands to arith operation CODE. |
721 | NOP_EXPR is used as a special case (see truthvalue_conversion). */ | |
ba47d38d | 722 | extern void binary_op_error (location_t, enum tree_code, tree, tree); |
35b1a6fa | 723 | extern tree fix_string_type (tree); |
35b1a6fa | 724 | extern void constant_expression_warning (tree); |
393eda6a | 725 | extern void constant_expression_error (tree); |
79bedddc | 726 | extern bool strict_aliasing_warning (tree, tree, tree); |
07231d4f | 727 | extern void warnings_for_convert_and_check (tree, tree, tree); |
35b1a6fa | 728 | extern tree convert_and_check (tree, tree); |
c2255bc4 | 729 | extern void overflow_warning (location_t, tree); |
a243fb4a | 730 | extern void warn_logical_operator (location_t, enum tree_code, tree, |
ca409efd | 731 | enum tree_code, tree, enum tree_code, tree); |
a1e45ff0 | 732 | extern void check_main_parameter_types (tree decl); |
b2ca3702 | 733 | extern bool c_determine_visibility (tree); |
5bed876a | 734 | extern bool same_scalar_type_ignoring_signedness (tree, tree); |
6ec637a4 JJ |
735 | extern void mark_valid_location_for_stdc_pragma (bool); |
736 | extern bool valid_location_for_stdc_pragma_p (void); | |
737 | extern void set_float_const_decimal64 (void); | |
738 | extern void clear_float_const_decimal64 (void); | |
739 | extern bool float_const_decimal64_p (void); | |
ab76ca54 | 740 | |
a9aa2c3a NF |
741 | extern bool keyword_begins_type_specifier (enum rid); |
742 | extern bool keyword_is_storage_class_specifier (enum rid); | |
743 | extern bool keyword_is_type_qualifier (enum rid); | |
744 | ||
c2255bc4 AH |
745 | #define c_sizeof(LOC, T) c_sizeof_or_alignof_type (LOC, T, true, 1) |
746 | #define c_alignof(LOC, T) c_sizeof_or_alignof_type (LOC, T, false, 1) | |
7f4edbcb | 747 | |
6715192c MLI |
748 | /* Subroutine of build_binary_op, used for certain operations. */ |
749 | extern tree shorten_binary_op (tree result_type, tree op0, tree op1, bool bitwise); | |
750 | ||
7f4edbcb BS |
751 | /* Subroutine of build_binary_op, used for comparison operations. |
752 | See if the operands have both been converted from subword integer types | |
753 | and, if so, perhaps change them both back to their original type. */ | |
35b1a6fa | 754 | extern tree shorten_compare (tree *, tree *, tree *, enum tree_code *); |
7f4edbcb | 755 | |
db3927fb | 756 | extern tree pointer_int_sum (location_t, enum tree_code, tree, tree); |
50e60bc3 ZW |
757 | |
758 | /* Add qualifiers to a type, in the fashion for C. */ | |
35b1a6fa | 759 | extern tree c_build_qualified_type (tree, int); |
50e60bc3 | 760 | |
7f4edbcb BS |
761 | /* Build tree nodes and builtin functions common to both C and C++ language |
762 | frontends. */ | |
35b1a6fa | 763 | extern void c_common_nodes_and_builtins (void); |
d3707adb | 764 | |
35b1a6fa | 765 | extern void disable_builtin_function (const char *); |
7d14c755 | 766 | |
3b2db49f MM |
767 | extern void set_compound_literal_name (tree decl); |
768 | ||
c2255bc4 | 769 | extern tree build_va_arg (location_t, tree, tree); |
7e8176d7 | 770 | |
c5fa0890 | 771 | extern const unsigned int c_family_lang_mask; |
7a9bf9a4 | 772 | extern unsigned int c_common_option_lang_mask (void); |
1ebe4b4f | 773 | extern void c_common_initialize_diagnostics (diagnostic_context *); |
7a9bf9a4 | 774 | extern bool c_common_complain_wrong_lang_p (const struct cl_option *); |
a75bfaa6 | 775 | extern void c_common_init_options_struct (struct gcc_options *); |
7a9bf9a4 | 776 | extern void c_common_init_options (unsigned int, struct cl_decoded_option *); |
35b1a6fa AJ |
777 | extern bool c_common_post_options (const char **); |
778 | extern bool c_common_init (void); | |
779 | extern void c_common_finish (void); | |
b37421c6 | 780 | extern void c_common_parse_file (void); |
4862826d | 781 | extern alias_set_type c_common_get_alias_set (tree); |
9649812a | 782 | extern void c_register_builtin_type (tree, const char*); |
58f9752a KG |
783 | extern bool c_promoting_integer_type_p (const_tree); |
784 | extern int self_promoting_args_p (const_tree); | |
12ea3302 | 785 | extern tree strip_pointer_operator (tree); |
ba992967 | 786 | extern tree strip_pointer_or_array_types (tree); |
c5ff069d | 787 | extern HOST_WIDE_INT c_common_to_target_charset (HOST_WIDE_INT); |
d7e7759d | 788 | |
d1bd0ded GK |
789 | /* This is the basic parsing function. */ |
790 | extern void c_parse_file (void); | |
d1bd0ded | 791 | |
d166d4c3 | 792 | extern void warn_for_omitted_condop (location_t, tree); |
c5ff069d | 793 | |
ae499cce MM |
794 | /* These macros provide convenient access to the various _STMT nodes. */ |
795 | ||
325c3691 RH |
796 | /* Nonzero if a given STATEMENT_LIST represents the outermost binding |
797 | if a statement expression. */ | |
798 | #define STATEMENT_LIST_STMT_EXPR(NODE) \ | |
799 | TREE_LANG_FLAG_1 (STATEMENT_LIST_CHECK (NODE)) | |
174283a3 RH |
800 | |
801 | /* Nonzero if a label has been added to the statement list. */ | |
802 | #define STATEMENT_LIST_HAS_LABEL(NODE) \ | |
803 | TREE_LANG_FLAG_3 (STATEMENT_LIST_CHECK (NODE)) | |
325c3691 | 804 | |
928c19bb JM |
805 | /* C_MAYBE_CONST_EXPR accessors. */ |
806 | #define C_MAYBE_CONST_EXPR_PRE(NODE) \ | |
807 | TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 0) | |
808 | #define C_MAYBE_CONST_EXPR_EXPR(NODE) \ | |
809 | TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 1) | |
810 | #define C_MAYBE_CONST_EXPR_INT_OPERANDS(NODE) \ | |
811 | TREE_LANG_FLAG_0 (C_MAYBE_CONST_EXPR_CHECK (NODE)) | |
812 | #define C_MAYBE_CONST_EXPR_NON_CONST(NODE) \ | |
813 | TREE_LANG_FLAG_1 (C_MAYBE_CONST_EXPR_CHECK (NODE)) | |
814 | #define EXPR_INT_CONST_OPERANDS(EXPR) \ | |
815 | (INTEGRAL_TYPE_P (TREE_TYPE (EXPR)) \ | |
816 | && (TREE_CODE (EXPR) == INTEGER_CST \ | |
817 | || (TREE_CODE (EXPR) == C_MAYBE_CONST_EXPR \ | |
818 | && C_MAYBE_CONST_EXPR_INT_OPERANDS (EXPR)))) | |
819 | ||
0a7394bc MM |
820 | /* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */ |
821 | #define DECL_C_BIT_FIELD(NODE) \ | |
822 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1) | |
823 | #define SET_DECL_C_BIT_FIELD(NODE) \ | |
824 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 1) | |
825 | #define CLEAR_DECL_C_BIT_FIELD(NODE) \ | |
826 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0) | |
827 | ||
c2255bc4 AH |
828 | extern tree do_case (location_t, tree, tree); |
829 | extern tree build_stmt (location_t, enum tree_code, ...); | |
830 | extern tree build_case_label (location_t, tree, tree, tree); | |
fb52b50a | 831 | extern tree build_real_imag_expr (location_t, enum tree_code, tree); |
f2c5f623 | 832 | |
ab76ca54 MM |
833 | /* These functions must be defined by each front-end which implements |
834 | a variant of the C language. They are used in c-common.c. */ | |
835 | ||
c9f9eb5d | 836 | extern tree build_unary_op (location_t, enum tree_code, tree, int); |
ba47d38d | 837 | extern tree build_binary_op (location_t, enum tree_code, tree, tree, int); |
522ddfa2 | 838 | extern tree perform_integral_promotions (tree); |
ab76ca54 | 839 | |
d593cb3d MS |
840 | /* These functions must be defined by each front-end which implements |
841 | a variant of the C language. They are used by port files. */ | |
842 | ||
843 | extern tree default_conversion (tree); | |
844 | ||
ab76ca54 MM |
845 | /* Given two integer or real types, return the type for their sum. |
846 | Given two compatible ANSI C types, returns the merged type. */ | |
847 | ||
35b1a6fa | 848 | extern tree common_type (tree, tree); |
44835fdd | 849 | |
35b1a6fa | 850 | extern tree decl_constant_value (tree); |
56cb9733 | 851 | |
19552aa5 | 852 | /* Handle increment and decrement of boolean types. */ |
35b1a6fa | 853 | extern tree boolean_increment (enum tree_code, tree); |
19552aa5 | 854 | |
35b1a6fa | 855 | extern int case_compare (splay_tree_key, splay_tree_key); |
8f17b5c5 | 856 | |
c2255bc4 | 857 | extern tree c_add_case_label (location_t, splay_tree, tree, tree, tree, tree); |
8f17b5c5 | 858 | |
fbc315db | 859 | extern void c_do_switch_warnings (splay_tree, location_t, tree, tree); |
6de9cd9a | 860 | |
c2255bc4 | 861 | extern tree build_function_call (location_t, tree, tree); |
c70eaeaf | 862 | |
c2255bc4 AH |
863 | extern tree build_function_call_vec (location_t, tree, |
864 | VEC(tree,gc) *, VEC(tree,gc) *); | |
bbbbb16a | 865 | |
c2255bc4 | 866 | extern tree resolve_overloaded_builtin (location_t, tree, VEC(tree,gc) *); |
48ae6c13 | 867 | |
6a3799eb | 868 | extern tree finish_label_address_expr (tree, location_t); |
15b732b2 NB |
869 | |
870 | /* Same function prototype, but the C and C++ front ends have | |
871 | different implementations. Used in c-common.c. */ | |
35b1a6fa | 872 | extern tree lookup_label (tree); |
10e6657a | 873 | extern tree lookup_name (tree); |
1e4ae551 | 874 | extern bool lvalue_p (const_tree); |
15b732b2 | 875 | |
f83c7f63 | 876 | extern bool vector_targets_convertible_p (const_tree t1, const_tree t2); |
58f9752a | 877 | extern bool vector_types_convertible_p (const_tree t1, const_tree t2, bool emit_lax_note); |
cc27e657 | 878 | |
0fab64a3 | 879 | extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *); |
8f17b5c5 | 880 | |
35b1a6fa | 881 | extern void init_c_lex (void); |
81a75f0f | 882 | |
35b1a6fa | 883 | extern void c_cpp_builtins (cpp_reader *); |
ab442df7 | 884 | extern void c_cpp_builtins_optimize_pragma (cpp_reader *, tree, tree); |
59cc9210 SB |
885 | extern bool c_cpp_error (cpp_reader *, int, int, location_t, unsigned int, |
886 | const char *, va_list *) | |
887 | ATTRIBUTE_GCC_DIAG(6,0); | |
76c3e73e | 888 | |
7c475d11 JM |
889 | extern bool parse_optimize_options (tree, bool); |
890 | ||
731e8b38 MM |
891 | /* Positive if an implicit `extern "C"' scope has just been entered; |
892 | negative if such a scope has just been exited. */ | |
7876228d | 893 | extern GTY(()) int pending_lang_change; |
731e8b38 | 894 | |
0e5921e8 ZW |
895 | /* Information recorded about each file examined during compilation. */ |
896 | ||
897 | struct c_fileinfo | |
898 | { | |
899 | int time; /* Time spent in the file. */ | |
5d709b00 ZW |
900 | |
901 | /* Flags used only by C++. | |
902 | INTERFACE_ONLY nonzero means that we are in an "interface" section | |
903 | of the compiler. INTERFACE_UNKNOWN nonzero means we cannot trust | |
904 | the value of INTERFACE_ONLY. If INTERFACE_UNKNOWN is zero and | |
905 | INTERFACE_ONLY is zero, it means that we are responsible for | |
906 | exporting definitions that others might need. */ | |
907 | short interface_only; | |
0e5921e8 ZW |
908 | short interface_unknown; |
909 | }; | |
910 | ||
35b1a6fa AJ |
911 | struct c_fileinfo *get_fileinfo (const char *); |
912 | extern void dump_time_statistics (void); | |
913 | ||
914 | extern bool c_dump_tree (void *, tree); | |
915 | ||
3a5b9284 RH |
916 | extern void verify_sequence_points (tree); |
917 | ||
6d4d7b0e | 918 | extern tree fold_offsetof (tree, tree); |
ee8a6a3e | 919 | |
5ae9ba3e | 920 | /* Places where an lvalue, or modifiable lvalue, may be required. |
37dc0d8d | 921 | Used to select diagnostic messages in lvalue_error and |
5ae9ba3e MM |
922 | readonly_error. */ |
923 | enum lvalue_use { | |
924 | lv_assign, | |
925 | lv_increment, | |
926 | lv_decrement, | |
927 | lv_addressof, | |
928 | lv_asm | |
929 | }; | |
930 | ||
4816c593 | 931 | extern void readonly_error (tree, enum lvalue_use); |
7bd11157 | 932 | extern void lvalue_error (location_t, enum lvalue_use); |
7a6daeb0 | 933 | extern void invalid_indirection_error (location_t, tree, ref_operator); |
5ae9ba3e | 934 | |
aab038d5 RH |
935 | extern int complete_array_type (tree *, tree, bool); |
936 | ||
48ae6c13 RH |
937 | extern tree builtin_type_for_size (int, bool); |
938 | ||
30cd1c5d AS |
939 | extern void c_common_mark_addressable_vec (tree); |
940 | ||
ff6b6641 | 941 | extern void warn_array_subscript_with_type_char (tree); |
100d537d MLI |
942 | extern void warn_about_parentheses (enum tree_code, |
943 | enum tree_code, tree, | |
944 | enum tree_code, tree); | |
c616e51b | 945 | extern void warn_for_unused_label (tree label); |
c9f9eb5d | 946 | extern void warn_for_div_by_zero (location_t, tree divisor); |
ba47d38d | 947 | extern void warn_for_sign_compare (location_t, |
b8698a0f L |
948 | tree orig_op0, tree orig_op1, |
949 | tree op0, tree op1, | |
950 | tree result_type, | |
2d12797c | 951 | enum tree_code resultcode); |
c5ee1358 MM |
952 | extern void do_warn_double_promotion (tree, tree, tree, const char *, |
953 | location_t); | |
d0940d56 | 954 | extern void set_underlying_type (tree x); |
c166b898 ILT |
955 | extern VEC(tree,gc) *make_tree_vector (void); |
956 | extern void release_tree_vector (VEC(tree,gc) *); | |
957 | extern VEC(tree,gc) *make_tree_vector_single (tree); | |
958 | extern VEC(tree,gc) *make_tree_vector_copy (const VEC(tree,gc) *); | |
2a67bec2 | 959 | |
7c34ced1 | 960 | /* In c-gimplify.c */ |
6de9cd9a | 961 | extern void c_genericize (tree); |
726a989a | 962 | extern int c_gimplify_expr (tree *, gimple_seq *, gimple_seq *); |
c2255bc4 | 963 | extern tree c_build_bind_expr (location_t, tree, tree); |
6de9cd9a | 964 | |
c0d578e6 | 965 | /* In c-pch.c */ |
35b1a6fa AJ |
966 | extern void pch_init (void); |
967 | extern int c_common_valid_pch (cpp_reader *pfile, const char *name, int fd); | |
968 | extern void c_common_read_pch (cpp_reader *pfile, const char *name, int fd, | |
969 | const char *orig); | |
970 | extern void c_common_write_pch (void); | |
18c81520 | 971 | extern void c_common_no_more_pch (void); |
bc4071dd | 972 | extern void c_common_pch_pragma (cpp_reader *pfile, const char *); |
3fd30b88 GK |
973 | extern void c_common_print_pch_checksum (FILE *f); |
974 | ||
975 | /* In *-checksum.c */ | |
976 | extern const unsigned char executable_checksum[16]; | |
c0d578e6 | 977 | |
ab442df7 MM |
978 | /* In c-cppbuiltin.c */ |
979 | extern void builtin_define_std (const char *macro); | |
35b1a6fa AJ |
980 | extern void builtin_define_with_value (const char *, const char *, int); |
981 | extern void c_stddef_cpp_builtins (void); | |
982 | extern void fe_file_change (const struct line_map *); | |
cfc93532 | 983 | extern void c_parse_error (const char *, enum cpp_ttype, tree, unsigned char); |
9d10c9a9 NB |
984 | |
985 | /* In c-ppoutput.c */ | |
35b1a6fa AJ |
986 | extern void init_pp_output (FILE *); |
987 | extern void preprocess_file (cpp_reader *); | |
988 | extern void pp_file_change (const struct line_map *); | |
8e9ea4d7 | 989 | extern void pp_dir_change (cpp_reader *, const char *); |
104f8784 | 990 | extern bool check_missing_format_attribute (tree, tree); |
17211ab5 | 991 | |
953ff289 | 992 | /* In c-omp.c */ |
c2255bc4 AH |
993 | extern tree c_finish_omp_master (location_t, tree); |
994 | extern tree c_finish_omp_critical (location_t, tree, tree); | |
995 | extern tree c_finish_omp_ordered (location_t, tree); | |
996 | extern void c_finish_omp_barrier (location_t); | |
997 | extern tree c_finish_omp_atomic (location_t, enum tree_code, tree, tree); | |
998 | extern void c_finish_omp_flush (location_t); | |
999 | extern void c_finish_omp_taskwait (location_t); | |
953ff289 | 1000 | extern tree c_finish_omp_for (location_t, tree, tree, tree, tree, tree, tree); |
c2255bc4 | 1001 | extern void c_split_parallel_clauses (location_t, tree, tree *, tree *); |
953ff289 DN |
1002 | extern enum omp_clause_default_kind c_omp_predetermined_sharing (tree); |
1003 | ||
1004 | /* Not in c-omp.c; provided by the front end. */ | |
1005 | extern bool c_omp_sharing_predetermined (tree); | |
1006 | extern tree c_omp_remap_decl (tree, bool); | |
b646ba3f | 1007 | extern void record_types_used_by_current_var_decl (tree); |
953ff289 | 1008 | |
88657302 | 1009 | #endif /* ! GCC_C_COMMON_H */ |