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72040e7e | 1 | /* Definitions for c-common.c. |
f003f5dc | 2 | Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, |
3 | 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011, 2012 | |
cfaf579d | 4 | Free Software Foundation, Inc. |
72040e7e | 5 | |
f12b58b3 | 6 | This file is part of GCC. |
72040e7e | 7 | |
f12b58b3 | 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 | |
8c4c00c1 | 10 | Software Foundation; either version 3, or (at your option) any later |
f12b58b3 | 11 | version. |
72040e7e | 12 | |
f12b58b3 | 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. | |
72040e7e | 17 | |
18 | You should have received a copy of the GNU General Public License | |
8c4c00c1 | 19 | along with GCC; see the file COPYING3. If not see |
20 | <http://www.gnu.org/licenses/>. */ | |
72040e7e | 21 | |
518796ad | 22 | #ifndef GCC_C_COMMON_H |
23 | #define GCC_C_COMMON_H | |
24 | ||
e41f0d80 | 25 | #include "splay-tree.h" |
0d086e18 | 26 | #include "cpplib.h" |
860251be | 27 | #include "ggc.h" |
4a020a8c | 28 | #include "tree.h" |
e41f0d80 | 29 | |
9f19e0f9 | 30 | /* In order for the format checking to accept the C frontend |
31 | diagnostic framework extensions, you must include this file before | |
0b205f4c | 32 | diagnostic-core.h, not after. The C front end formats are a subset of those |
9f19e0f9 | 33 | for C++, so they are the appropriate set to use in common code; |
34 | cp-tree.h overrides this for C++. */ | |
0b205f4c | 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 | |
9f19e0f9 | 41 | #ifndef GCC_DIAG_STYLE |
42 | #define GCC_DIAG_STYLE __gcc_cdiag__ | |
43 | #endif | |
44 | #include "diagnostic-core.h" | |
45 | ||
5c3247a9 | 46 | /* Usage of TREE_LANG_FLAG_?: |
bf2a43ff | 47 | 0: IDENTIFIER_MARKED (used by search routines). |
a75b1c71 | 48 | C_MAYBE_CONST_EXPR_INT_OPERANDS (in C_MAYBE_CONST_EXPR, for C) |
5c3247a9 | 49 | 1: C_DECLARED_LABEL_FLAG (in LABEL_DECL) |
2363ef00 | 50 | STATEMENT_LIST_STMT_EXPR (in STATEMENT_LIST) |
a75b1c71 | 51 | C_MAYBE_CONST_EXPR_NON_CONST (in C_MAYBE_CONST_EXPR, for C) |
4ee9c684 | 52 | 2: unused |
2e3f4877 | 53 | 3: STATEMENT_LIST_HAS_LABEL (in STATEMENT_LIST) |
2363ef00 | 54 | 4: unused |
5c3247a9 | 55 | */ |
56 | ||
518796ad | 57 | /* Reserved identifiers. This is the union of all the keywords for C, |
7fd957fe | 58 | C++, and Objective-C. All the type modifiers have to be in one |
518796ad | 59 | block at the beginning, because they are used as mask bits. There |
985c6e3a | 60 | are 28 type modifiers; if we add many more we will have to redesign |
518796ad | 61 | the mask mechanism. */ |
988fc1d1 | 62 | |
63 | enum rid | |
64 | { | |
518796ad | 65 | /* Modifiers: */ |
88b5b080 | 66 | /* C, in empirical order of frequency. */ |
518796ad | 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, | |
985c6e3a | 71 | RID_NORETURN, |
518796ad | 72 | |
73 | /* C extensions */ | |
9421ebb9 | 74 | RID_COMPLEX, RID_THREAD, RID_SAT, |
518796ad | 75 | |
76 | /* C++ */ | |
77 | RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE, | |
78 | ||
b27e241e | 79 | /* ObjC ("PQ" reserved words - they do not appear after a '@' and |
80 | are keywords only in specific contexts) */ | |
f17c0828 | 81 | RID_IN, RID_OUT, RID_INOUT, RID_BYCOPY, RID_BYREF, RID_ONEWAY, |
518796ad | 82 | |
86c110ac | 83 | /* ObjC ("PATTR" reserved words - they do not appear after a '@' |
84 | and are keywords only as property attributes) */ | |
7590f0e5 | 85 | RID_GETTER, RID_SETTER, |
86 | RID_READONLY, RID_READWRITE, | |
87 | RID_ASSIGN, RID_RETAIN, RID_COPY, | |
7590f0e5 | 88 | RID_NONATOMIC, |
86c110ac | 89 | |
c1800156 | 90 | /* C (reserved and imaginary types not implemented, so any use is a |
91 | syntax error) */ | |
92 | RID_IMAGINARY, | |
93 | ||
518796ad | 94 | /* C */ |
95 | RID_INT, RID_CHAR, RID_FLOAT, RID_DOUBLE, RID_VOID, | |
6388cfe2 | 96 | RID_INT128, |
518796ad | 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, | |
84e28d80 | 104 | RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_CHOOSE_EXPR, |
6cf89e04 | 105 | RID_TYPES_COMPATIBLE_P, RID_BUILTIN_COMPLEX, RID_BUILTIN_SHUFFLE, |
c4503c0a | 106 | RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128, |
9421ebb9 | 107 | RID_FRACT, RID_ACCUM, |
518796ad | 108 | |
32074525 | 109 | /* C11 */ |
83e25171 | 110 | RID_ALIGNAS, |
111 | ||
5c6e5756 | 112 | /* This means to warn that this is a C++ keyword, and then treat it |
113 | as a normal identifier. */ | |
114 | RID_CXX_COMPAT_WARN, | |
115 | ||
4c0315d0 | 116 | /* GNU transactional memory extension */ |
117 | RID_TRANSACTION_ATOMIC, RID_TRANSACTION_RELAXED, RID_TRANSACTION_CANCEL, | |
118 | ||
65b7f83f | 119 | /* Too many ways of getting the name of a function as a string */ |
120 | RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME, | |
121 | ||
b27e241e | 122 | /* C++ (some of these are keywords in Objective-C as well, but only |
123 | if they appear after a '@') */ | |
518796ad | 124 | RID_BOOL, RID_WCHAR, RID_CLASS, |
125 | RID_PUBLIC, RID_PRIVATE, RID_PROTECTED, | |
126 | RID_TEMPLATE, RID_NULL, RID_CATCH, | |
127 | RID_DELETE, RID_FALSE, RID_NAMESPACE, | |
a0c938f0 | 128 | RID_NEW, RID_OFFSETOF, RID_OPERATOR, |
129 | RID_THIS, RID_THROW, RID_TRUE, | |
130 | RID_TRY, RID_TYPENAME, RID_TYPEID, | |
924bbf02 | 131 | RID_USING, RID_CHAR16, RID_CHAR32, |
518796ad | 132 | |
133 | /* casts */ | |
134 | RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST, | |
135 | ||
481451eb | 136 | /* C++ extensions */ |
aa4313eb | 137 | RID_BASES, RID_DIRECT_BASES, |
481451eb | 138 | RID_HAS_NOTHROW_ASSIGN, RID_HAS_NOTHROW_CONSTRUCTOR, |
139 | RID_HAS_NOTHROW_COPY, RID_HAS_TRIVIAL_ASSIGN, | |
140 | RID_HAS_TRIVIAL_CONSTRUCTOR, RID_HAS_TRIVIAL_COPY, | |
141 | RID_HAS_TRIVIAL_DESTRUCTOR, RID_HAS_VIRTUAL_DESTRUCTOR, | |
142 | RID_IS_ABSTRACT, RID_IS_BASE_OF, | |
e6014a82 | 143 | RID_IS_CLASS, RID_IS_CONVERTIBLE_TO, |
481451eb | 144 | RID_IS_EMPTY, RID_IS_ENUM, |
aa4313eb | 145 | RID_IS_FINAL, RID_IS_LITERAL_TYPE, |
146 | RID_IS_POD, RID_IS_POLYMORPHIC, | |
147 | RID_IS_STD_LAYOUT, RID_IS_TRIVIAL, | |
148 | RID_IS_UNION, RID_UNDERLYING_TYPE, | |
481451eb | 149 | |
aa4313eb | 150 | /* C++11 */ |
98fe9664 | 151 | RID_CONSTEXPR, RID_DECLTYPE, RID_NOEXCEPT, RID_NULLPTR, RID_STATIC_ASSERT, |
df1683c2 | 152 | |
b27e241e | 153 | /* Objective-C ("AT" reserved words - they are only keywords when |
154 | they follow '@') */ | |
9e8a7e85 | 155 | RID_AT_ENCODE, RID_AT_END, |
518796ad | 156 | RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS, |
4a8875ed | 157 | RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC, RID_AT_PACKAGE, |
a0c938f0 | 158 | RID_AT_PROTOCOL, RID_AT_SELECTOR, |
c17b85ea | 159 | RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH, |
069761fb | 160 | RID_AT_FINALLY, RID_AT_SYNCHRONIZED, |
86c110ac | 161 | RID_AT_OPTIONAL, RID_AT_REQUIRED, RID_AT_PROPERTY, |
e1f293c0 | 162 | RID_AT_SYNTHESIZE, RID_AT_DYNAMIC, |
c17b85ea | 163 | RID_AT_INTERFACE, |
518796ad | 164 | RID_AT_IMPLEMENTATION, |
165 | ||
6d5d708e | 166 | /* Named address support, mapping the keyword to a particular named address |
167 | number. Named address space 0 is reserved for the generic address. If | |
168 | there are more than 254 named addresses, the addr_space_t type will need | |
169 | to be grown from an unsigned char to unsigned short. */ | |
170 | RID_ADDR_SPACE_0, /* generic address */ | |
171 | RID_ADDR_SPACE_1, | |
172 | RID_ADDR_SPACE_2, | |
173 | RID_ADDR_SPACE_3, | |
174 | RID_ADDR_SPACE_4, | |
175 | RID_ADDR_SPACE_5, | |
176 | RID_ADDR_SPACE_6, | |
177 | RID_ADDR_SPACE_7, | |
178 | RID_ADDR_SPACE_8, | |
179 | RID_ADDR_SPACE_9, | |
180 | RID_ADDR_SPACE_10, | |
181 | RID_ADDR_SPACE_11, | |
182 | RID_ADDR_SPACE_12, | |
183 | RID_ADDR_SPACE_13, | |
184 | RID_ADDR_SPACE_14, | |
185 | RID_ADDR_SPACE_15, | |
186 | ||
187 | RID_FIRST_ADDR_SPACE = RID_ADDR_SPACE_0, | |
188 | RID_LAST_ADDR_SPACE = RID_ADDR_SPACE_15, | |
189 | ||
518796ad | 190 | RID_MAX, |
191 | ||
192 | RID_FIRST_MODIFIER = RID_STATIC, | |
f17c0828 | 193 | RID_LAST_MODIFIER = RID_ONEWAY, |
194 | ||
6fe11077 | 195 | RID_FIRST_CXX0X = RID_CONSTEXPR, |
196 | RID_LAST_CXX0X = RID_STATIC_ASSERT, | |
f17c0828 | 197 | RID_FIRST_AT = RID_AT_ENCODE, |
198 | RID_LAST_AT = RID_AT_IMPLEMENTATION, | |
199 | RID_FIRST_PQ = RID_IN, | |
86c110ac | 200 | RID_LAST_PQ = RID_ONEWAY, |
7590f0e5 | 201 | RID_FIRST_PATTR = RID_GETTER, |
202 | RID_LAST_PATTR = RID_NONATOMIC | |
988fc1d1 | 203 | }; |
204 | ||
f17c0828 | 205 | #define OBJC_IS_AT_KEYWORD(rid) \ |
84166705 | 206 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_AT && \ |
207 | (unsigned int) (rid) <= (unsigned int) RID_LAST_AT) | |
f17c0828 | 208 | |
209 | #define OBJC_IS_PQ_KEYWORD(rid) \ | |
84166705 | 210 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PQ && \ |
211 | (unsigned int) (rid) <= (unsigned int) RID_LAST_PQ) | |
f17c0828 | 212 | |
86c110ac | 213 | #define OBJC_IS_PATTR_KEYWORD(rid) \ |
214 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PATTR && \ | |
215 | (unsigned int) (rid) <= (unsigned int) RID_LAST_PATTR) | |
216 | ||
b27e241e | 217 | /* OBJC_IS_CXX_KEYWORD recognizes the 'CXX_OBJC' keywords (such as |
218 | 'class') which are shared in a subtle way between Objective-C and | |
219 | C++. When the lexer is lexing in Objective-C/Objective-C++, if it | |
220 | finds '@' followed by one of these identifiers (eg, '@class'), it | |
221 | recognizes the whole as an Objective-C keyword. If the identifier | |
222 | is found elsewhere, it follows the rules of the C/C++ language. | |
223 | */ | |
224 | #define OBJC_IS_CXX_KEYWORD(rid) \ | |
225 | (rid == RID_CLASS \ | |
226 | || rid == RID_PUBLIC || rid == RID_PROTECTED || rid == RID_PRIVATE \ | |
227 | || rid == RID_TRY || rid == RID_THROW || rid == RID_CATCH) | |
228 | ||
988fc1d1 | 229 | /* The elements of `ridpointers' are identifier nodes for the reserved |
230 | type names and storage classes. It is indexed by a RID_... value. */ | |
84166705 | 231 | extern GTY ((length ("(int) RID_MAX"))) tree *ridpointers; |
988fc1d1 | 232 | |
72040e7e | 233 | /* Standard named or nameless data types of the C compiler. */ |
234 | ||
235 | enum c_tree_index | |
236 | { | |
924bbf02 | 237 | CTI_CHAR16_TYPE, |
238 | CTI_CHAR32_TYPE, | |
72040e7e | 239 | CTI_WCHAR_TYPE, |
f3449a3c | 240 | CTI_UNDERLYING_WCHAR_TYPE, |
55dbcdfe | 241 | CTI_WINT_TYPE, |
428a1c21 | 242 | CTI_SIGNED_SIZE_TYPE, /* For format checking only. */ |
243 | CTI_UNSIGNED_PTRDIFF_TYPE, /* For format checking only. */ | |
e3fff6f2 | 244 | CTI_INTMAX_TYPE, |
245 | CTI_UINTMAX_TYPE, | |
72040e7e | 246 | CTI_WIDEST_INT_LIT_TYPE, |
247 | CTI_WIDEST_UINT_LIT_TYPE, | |
248 | ||
f3449a3c | 249 | /* Types for <stdint.h>, that may not be defined on all |
250 | targets. */ | |
251 | CTI_SIG_ATOMIC_TYPE, | |
252 | CTI_INT8_TYPE, | |
253 | CTI_INT16_TYPE, | |
254 | CTI_INT32_TYPE, | |
255 | CTI_INT64_TYPE, | |
256 | CTI_UINT8_TYPE, | |
257 | CTI_UINT16_TYPE, | |
258 | CTI_UINT32_TYPE, | |
259 | CTI_UINT64_TYPE, | |
260 | CTI_INT_LEAST8_TYPE, | |
261 | CTI_INT_LEAST16_TYPE, | |
262 | CTI_INT_LEAST32_TYPE, | |
263 | CTI_INT_LEAST64_TYPE, | |
264 | CTI_UINT_LEAST8_TYPE, | |
265 | CTI_UINT_LEAST16_TYPE, | |
266 | CTI_UINT_LEAST32_TYPE, | |
267 | CTI_UINT_LEAST64_TYPE, | |
268 | CTI_INT_FAST8_TYPE, | |
269 | CTI_INT_FAST16_TYPE, | |
270 | CTI_INT_FAST32_TYPE, | |
271 | CTI_INT_FAST64_TYPE, | |
272 | CTI_UINT_FAST8_TYPE, | |
273 | CTI_UINT_FAST16_TYPE, | |
274 | CTI_UINT_FAST32_TYPE, | |
275 | CTI_UINT_FAST64_TYPE, | |
276 | CTI_INTPTR_TYPE, | |
277 | CTI_UINTPTR_TYPE, | |
278 | ||
72040e7e | 279 | CTI_CHAR_ARRAY_TYPE, |
924bbf02 | 280 | CTI_CHAR16_ARRAY_TYPE, |
281 | CTI_CHAR32_ARRAY_TYPE, | |
72040e7e | 282 | CTI_WCHAR_ARRAY_TYPE, |
283 | CTI_INT_ARRAY_TYPE, | |
284 | CTI_STRING_TYPE, | |
285 | CTI_CONST_STRING_TYPE, | |
286 | ||
4f9a1c9b | 287 | /* Type for boolean expressions (bool in C++, int in C). */ |
3c2239cf | 288 | CTI_TRUTHVALUE_TYPE, |
289 | CTI_TRUTHVALUE_TRUE, | |
290 | CTI_TRUTHVALUE_FALSE, | |
291 | ||
72040e7e | 292 | CTI_DEFAULT_FUNCTION_TYPE, |
72040e7e | 293 | |
88b5b080 | 294 | /* These are not types, but we have to look them up all the time. */ |
65b7f83f | 295 | CTI_FUNCTION_NAME_DECL, |
296 | CTI_PRETTY_FUNCTION_NAME_DECL, | |
297 | CTI_C99_FUNCTION_NAME_DECL, | |
298 | CTI_SAVED_FUNCTION_NAME_DECLS, | |
a0c938f0 | 299 | |
a08e60ae | 300 | CTI_VOID_ZERO, |
301 | ||
ae84079f | 302 | CTI_NULL, |
303 | ||
72040e7e | 304 | CTI_MAX |
305 | }; | |
306 | ||
89768577 | 307 | #define C_CPP_HASHNODE(id) \ |
308 | (&(((struct c_common_identifier *) (id))->node)) | |
7d339f93 | 309 | #define C_RID_CODE(id) \ |
310 | ((enum rid) (((struct c_common_identifier *) (id))->node.rid_code)) | |
311 | #define C_SET_RID_CODE(id, code) \ | |
312 | (((struct c_common_identifier *) (id))->node.rid_code = (unsigned char) code) | |
0d086e18 | 313 | |
314 | /* Identifier part common to the C front ends. Inherits from | |
315 | tree_identifier, despite appearances. */ | |
fb1e4f4a | 316 | struct GTY(()) c_common_identifier { |
fc9c9e87 | 317 | struct tree_common common; |
573aba85 | 318 | struct cpp_hashnode node; |
0d086e18 | 319 | }; |
320 | ||
5c6e5756 | 321 | /* An entry in the reserved keyword table. */ |
322 | ||
323 | struct c_common_resword | |
324 | { | |
325 | const char *const word; | |
326 | ENUM_BITFIELD(rid) const rid : 16; | |
327 | const unsigned int disable : 16; | |
328 | }; | |
329 | ||
07b8f133 | 330 | /* Extra cpp_ttype values for C++. */ |
331 | ||
332 | /* A token type for keywords, as opposed to ordinary identifiers. */ | |
333 | #define CPP_KEYWORD ((enum cpp_ttype) (N_TTYPES + 1)) | |
334 | ||
335 | /* A token type for template-ids. If a template-id is processed while | |
336 | parsing tentatively, it is replaced with a CPP_TEMPLATE_ID token; | |
337 | the value of the CPP_TEMPLATE_ID is whatever was returned by | |
338 | cp_parser_template_id. */ | |
339 | #define CPP_TEMPLATE_ID ((enum cpp_ttype) (CPP_KEYWORD + 1)) | |
340 | ||
341 | /* A token type for nested-name-specifiers. If a | |
342 | nested-name-specifier is processed while parsing tentatively, it is | |
343 | replaced with a CPP_NESTED_NAME_SPECIFIER token; the value of the | |
344 | CPP_NESTED_NAME_SPECIFIER is whatever was returned by | |
345 | cp_parser_nested_name_specifier_opt. */ | |
346 | #define CPP_NESTED_NAME_SPECIFIER ((enum cpp_ttype) (CPP_TEMPLATE_ID + 1)) | |
347 | ||
348 | /* A token type for pre-parsed C++0x decltype. */ | |
349 | #define CPP_DECLTYPE ((enum cpp_ttype) (CPP_NESTED_NAME_SPECIFIER + 1)) | |
350 | ||
351 | /* The number of token types, including C++-specific ones. */ | |
352 | #define N_CP_TTYPES ((int) (CPP_DECLTYPE + 1)) | |
353 | ||
5c6e5756 | 354 | /* Disable mask. Keywords are disabled if (reswords[i].disable & |
355 | mask) is _true_. Thus for keywords which are present in all | |
356 | languages the disable field is zero. */ | |
357 | ||
358 | #define D_CONLY 0x001 /* C only (not in C++). */ | |
359 | #define D_CXXONLY 0x002 /* C++ only (not in C). */ | |
360 | #define D_C99 0x004 /* In C, C99 only. */ | |
361 | #define D_CXX0X 0x008 /* In C++, C++0X only. */ | |
362 | #define D_EXT 0x010 /* GCC extension. */ | |
363 | #define D_EXT89 0x020 /* GCC extension incorporated in C99. */ | |
364 | #define D_ASM 0x040 /* Disabled by -fno-asm. */ | |
365 | #define D_OBJC 0x080 /* In Objective C and neither C nor C++. */ | |
366 | #define D_CXX_OBJC 0x100 /* In Objective C, and C++, but not C. */ | |
367 | #define D_CXXWARN 0x200 /* In C warn with -Wcxx-compat. */ | |
368 | ||
369 | /* The reserved keyword table. */ | |
370 | extern const struct c_common_resword c_common_reswords[]; | |
371 | ||
372 | /* The number of items in the reserved keyword table. */ | |
373 | extern const unsigned int num_c_common_reswords; | |
374 | ||
924bbf02 | 375 | #define char16_type_node c_global_trees[CTI_CHAR16_TYPE] |
376 | #define char32_type_node c_global_trees[CTI_CHAR32_TYPE] | |
72040e7e | 377 | #define wchar_type_node c_global_trees[CTI_WCHAR_TYPE] |
f3449a3c | 378 | #define underlying_wchar_type_node c_global_trees[CTI_UNDERLYING_WCHAR_TYPE] |
55dbcdfe | 379 | #define wint_type_node c_global_trees[CTI_WINT_TYPE] |
428a1c21 | 380 | #define signed_size_type_node c_global_trees[CTI_SIGNED_SIZE_TYPE] |
381 | #define unsigned_ptrdiff_type_node c_global_trees[CTI_UNSIGNED_PTRDIFF_TYPE] | |
e3fff6f2 | 382 | #define intmax_type_node c_global_trees[CTI_INTMAX_TYPE] |
383 | #define uintmax_type_node c_global_trees[CTI_UINTMAX_TYPE] | |
72040e7e | 384 | #define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE] |
385 | #define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE] | |
386 | ||
f3449a3c | 387 | #define sig_atomic_type_node c_global_trees[CTI_SIG_ATOMIC_TYPE] |
388 | #define int8_type_node c_global_trees[CTI_INT8_TYPE] | |
389 | #define int16_type_node c_global_trees[CTI_INT16_TYPE] | |
390 | #define int32_type_node c_global_trees[CTI_INT32_TYPE] | |
391 | #define int64_type_node c_global_trees[CTI_INT64_TYPE] | |
392 | #define uint8_type_node c_global_trees[CTI_UINT8_TYPE] | |
74bdbe96 | 393 | #define c_uint16_type_node c_global_trees[CTI_UINT16_TYPE] |
f3449a3c | 394 | #define c_uint32_type_node c_global_trees[CTI_UINT32_TYPE] |
395 | #define c_uint64_type_node c_global_trees[CTI_UINT64_TYPE] | |
396 | #define int_least8_type_node c_global_trees[CTI_INT_LEAST8_TYPE] | |
397 | #define int_least16_type_node c_global_trees[CTI_INT_LEAST16_TYPE] | |
398 | #define int_least32_type_node c_global_trees[CTI_INT_LEAST32_TYPE] | |
399 | #define int_least64_type_node c_global_trees[CTI_INT_LEAST64_TYPE] | |
400 | #define uint_least8_type_node c_global_trees[CTI_UINT_LEAST8_TYPE] | |
401 | #define uint_least16_type_node c_global_trees[CTI_UINT_LEAST16_TYPE] | |
402 | #define uint_least32_type_node c_global_trees[CTI_UINT_LEAST32_TYPE] | |
403 | #define uint_least64_type_node c_global_trees[CTI_UINT_LEAST64_TYPE] | |
404 | #define int_fast8_type_node c_global_trees[CTI_INT_FAST8_TYPE] | |
405 | #define int_fast16_type_node c_global_trees[CTI_INT_FAST16_TYPE] | |
406 | #define int_fast32_type_node c_global_trees[CTI_INT_FAST32_TYPE] | |
407 | #define int_fast64_type_node c_global_trees[CTI_INT_FAST64_TYPE] | |
408 | #define uint_fast8_type_node c_global_trees[CTI_UINT_FAST8_TYPE] | |
409 | #define uint_fast16_type_node c_global_trees[CTI_UINT_FAST16_TYPE] | |
410 | #define uint_fast32_type_node c_global_trees[CTI_UINT_FAST32_TYPE] | |
411 | #define uint_fast64_type_node c_global_trees[CTI_UINT_FAST64_TYPE] | |
412 | #define intptr_type_node c_global_trees[CTI_INTPTR_TYPE] | |
413 | #define uintptr_type_node c_global_trees[CTI_UINTPTR_TYPE] | |
414 | ||
3c2239cf | 415 | #define truthvalue_type_node c_global_trees[CTI_TRUTHVALUE_TYPE] |
416 | #define truthvalue_true_node c_global_trees[CTI_TRUTHVALUE_TRUE] | |
417 | #define truthvalue_false_node c_global_trees[CTI_TRUTHVALUE_FALSE] | |
4f9a1c9b | 418 | |
72040e7e | 419 | #define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE] |
924bbf02 | 420 | #define char16_array_type_node c_global_trees[CTI_CHAR16_ARRAY_TYPE] |
421 | #define char32_array_type_node c_global_trees[CTI_CHAR32_ARRAY_TYPE] | |
72040e7e | 422 | #define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE] |
423 | #define int_array_type_node c_global_trees[CTI_INT_ARRAY_TYPE] | |
424 | #define string_type_node c_global_trees[CTI_STRING_TYPE] | |
425 | #define const_string_type_node c_global_trees[CTI_CONST_STRING_TYPE] | |
426 | ||
427 | #define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE] | |
72040e7e | 428 | |
65b7f83f | 429 | #define function_name_decl_node c_global_trees[CTI_FUNCTION_NAME_DECL] |
430 | #define pretty_function_name_decl_node c_global_trees[CTI_PRETTY_FUNCTION_NAME_DECL] | |
431 | #define c99_function_name_decl_node c_global_trees[CTI_C99_FUNCTION_NAME_DECL] | |
432 | #define saved_function_name_decls c_global_trees[CTI_SAVED_FUNCTION_NAME_DECLS] | |
71d9fc9b | 433 | |
a08e60ae | 434 | /* A node for `((void) 0)'. */ |
435 | #define void_zero_node c_global_trees[CTI_VOID_ZERO] | |
436 | ||
ae84079f | 437 | /* The node for C++ `__null'. */ |
438 | #define null_node c_global_trees[CTI_NULL] | |
439 | ||
1f3233d1 | 440 | extern GTY(()) tree c_global_trees[CTI_MAX]; |
29d00ba7 | 441 | |
21dda4ee | 442 | /* In a RECORD_TYPE, a sorted array of the fields of the type, not a |
443 | tree for size reasons. */ | |
ba72912a | 444 | struct GTY((variable_size)) sorted_fields_type { |
860251be | 445 | int len; |
446 | tree GTY((length ("%h.len"))) elts[1]; | |
447 | }; | |
448 | ||
e41f0d80 | 449 | /* Mark which labels are explicitly declared. |
450 | These may be shadowed, and may be referenced from nested functions. */ | |
451 | #define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label) | |
452 | ||
29d00ba7 | 453 | typedef enum c_language_kind |
454 | { | |
c0f19401 | 455 | clk_c = 0, /* C90, C94 or C99 */ |
456 | clk_objc = 1, /* clk_c with ObjC features. */ | |
457 | clk_cxx = 2, /* ANSI/ISO C++ */ | |
458 | clk_objcxx = 3 /* clk_cxx with ObjC features. */ | |
5e6015b1 | 459 | } |
29d00ba7 | 460 | c_language_kind; |
461 | ||
c0f19401 | 462 | /* To test for a specific language use c_language, defined by each |
463 | front end. For "ObjC features" or "not C++" use the macros. */ | |
464 | extern c_language_kind c_language; | |
465 | ||
90b8bebd | 466 | #define c_dialect_cxx() ((c_language & clk_cxx) != 0) |
467 | #define c_dialect_objc() ((c_language & clk_objc) != 0) | |
c0f19401 | 468 | |
f08923b3 | 469 | /* The various name of operator that appears in error messages. */ |
470 | typedef enum ref_operator { | |
471 | /* NULL */ | |
472 | RO_NULL, | |
473 | /* array indexing */ | |
474 | RO_ARRAY_INDEXING, | |
475 | /* unary * */ | |
476 | RO_UNARY_STAR, | |
477 | /* -> */ | |
478 | RO_ARROW, | |
479 | /* implicit conversion */ | |
7354ad2e | 480 | RO_IMPLICIT_CONVERSION, |
481 | /* ->* */ | |
482 | RO_ARROW_STAR | |
f08923b3 | 483 | } ref_operator; |
484 | ||
a08e60ae | 485 | /* Information about a statement tree. */ |
486 | ||
fb1e4f4a | 487 | struct GTY(()) stmt_tree_s { |
cacfdc02 | 488 | /* A stack of statement lists being collected. */ |
f1f41a6c | 489 | vec<tree, va_gc> *x_cur_stmt_list; |
2363ef00 | 490 | |
d10cfa8d | 491 | /* In C++, Nonzero if we should treat statements as full |
61e987fc | 492 | expressions. In particular, this variable is non-zero if at the |
a08e60ae | 493 | end of a statement we should destroy any temporaries created |
494 | during that statement. Similarly, if, at the end of a block, we | |
495 | should destroy any local variables in this block. Normally, this | |
d10cfa8d | 496 | variable is nonzero, since those are the normal semantics of |
a08e60ae | 497 | C++. |
498 | ||
a08e60ae | 499 | This flag has no effect in C. */ |
5e6015b1 | 500 | int stmts_are_full_exprs_p; |
a08e60ae | 501 | }; |
502 | ||
503 | typedef struct stmt_tree_s *stmt_tree; | |
504 | ||
505 | /* Global state pertinent to the current function. Some C dialects | |
506 | extend this structure with additional fields. */ | |
507 | ||
fb1e4f4a | 508 | struct GTY(()) c_language_function { |
a08e60ae | 509 | /* While we are parsing the function, this contains information |
510 | about the statement-tree that we are building. */ | |
511 | struct stmt_tree_s x_stmt_tree; | |
a4e3ffad | 512 | |
513 | /* Vector of locally defined typedefs, for | |
514 | -Wunused-local-typedefs. */ | |
f1f41a6c | 515 | vec<tree, va_gc> *local_typedefs; |
a08e60ae | 516 | }; |
517 | ||
cacfdc02 | 518 | #define stmt_list_stack (current_stmt_tree ()->x_cur_stmt_list) |
519 | ||
0975351b | 520 | /* When building a statement-tree, this is the current statement list |
f1f41a6c | 521 | being collected. */ |
522 | #define cur_stmt_list (stmt_list_stack->last ()) | |
cacfdc02 | 523 | |
f1f41a6c | 524 | #define building_stmt_list_p() (stmt_list_stack && !stmt_list_stack->is_empty()) |
e41f0d80 | 525 | |
526 | /* Language-specific hooks. */ | |
527 | ||
caa6fdce | 528 | /* If non-NULL, this function is called after a precompile header file |
529 | is loaded. */ | |
530 | extern void (*lang_post_pch_load) (void); | |
531 | ||
393b349a | 532 | extern void push_file_scope (void); |
533 | extern void pop_file_scope (void); | |
1cae46be | 534 | extern stmt_tree current_stmt_tree (void); |
2363ef00 | 535 | extern tree push_stmt_list (void); |
2363ef00 | 536 | extern tree pop_stmt_list (tree); |
1cae46be | 537 | extern tree add_stmt (tree); |
2363ef00 | 538 | extern void push_cleanup (tree, tree, bool); |
1e8e9920 | 539 | extern tree pushdecl_top_level (tree); |
540 | extern tree pushdecl (tree); | |
8458f4ca | 541 | extern tree build_modify_expr (location_t, tree, tree, enum tree_code, |
e60a6f7b | 542 | location_t, tree, tree); |
f08923b3 | 543 | extern tree build_indirect_ref (location_t, tree, ref_operator); |
1cae46be | 544 | |
860251be | 545 | extern int field_decl_cmp (const void *, const void *); |
a0c938f0 | 546 | extern void resort_sorted_fields (void *, void *, gt_pointer_operator, |
547 | void *); | |
9f627b1a | 548 | extern bool has_c_linkage (const_tree decl); |
573aba85 | 549 | \f |
574a6990 | 550 | /* Switches common to the C front ends. */ |
551 | ||
f7070933 | 552 | /* Nonzero means don't output line number information. */ |
553 | ||
554 | extern char flag_no_line_commands; | |
555 | ||
556 | /* Nonzero causes -E output not to be done, but directives such as | |
557 | #define that have side effects are still obeyed. */ | |
558 | ||
559 | extern char flag_no_output; | |
560 | ||
34c3de48 | 561 | /* Nonzero means dump macros in some fashion; contains the 'D', 'M', |
562 | 'N' or 'U' of the command line switch. */ | |
f7070933 | 563 | |
564 | extern char flag_dump_macros; | |
565 | ||
566 | /* Nonzero means pass #include lines through to the output. */ | |
567 | ||
568 | extern char flag_dump_includes; | |
569 | ||
d718b525 | 570 | /* Nonzero means process PCH files while preprocessing. */ |
571 | ||
572 | extern bool flag_pch_preprocess; | |
573 | ||
573aba85 | 574 | /* The file name to which we should write a precompiled header, or |
575 | NULL if no header will be written in this compile. */ | |
576 | ||
577 | extern const char *pch_file; | |
578 | ||
1ed9d5f5 | 579 | /* Nonzero if an ISO standard was selected. It rejects macros in the |
580 | user's namespace. */ | |
573aba85 | 581 | |
1ed9d5f5 | 582 | extern int flag_iso; |
583 | ||
574a6990 | 584 | /* C/ObjC language option variables. */ |
dbf6c367 | 585 | |
481c6ce6 | 586 | |
574a6990 | 587 | /* Nonzero means allow type mismatches in conditional expressions; |
588 | just make their values `void'. */ | |
e37414d8 | 589 | |
574a6990 | 590 | extern int flag_cond_mismatch; |
bd08a4e6 | 591 | |
ec35ee92 | 592 | /* Nonzero means enable C89 Amendment 1 features. */ |
49bc3768 | 593 | |
594 | extern int flag_isoc94; | |
595 | ||
32074525 | 596 | /* Nonzero means use the ISO C99 (or C11) dialect of C. */ |
29d00ba7 | 597 | |
598 | extern int flag_isoc99; | |
599 | ||
32074525 | 600 | /* Nonzero means use the ISO C11 dialect of C. */ |
39012afb | 601 | |
32074525 | 602 | extern int flag_isoc11; |
39012afb | 603 | |
8b332087 | 604 | /* Nonzero means that we have builtin functions, and main is an int. */ |
9bee1c90 | 605 | |
606 | extern int flag_hosted; | |
607 | ||
574a6990 | 608 | /* ObjC language option variables. */ |
609 | ||
610 | ||
574a6990 | 611 | /* Tells the compiler that this is a special run. Do not perform any |
612 | compiling, instead we are to test some platform dependent features | |
613 | and output a C header file with appropriate definitions. */ | |
614 | ||
615 | extern int print_struct_values; | |
616 | ||
ec9c816b | 617 | /* Tells the compiler what is the constant string class for ObjC. */ |
574a6990 | 618 | |
e23fd334 | 619 | extern const char *constant_string_class_name; |
574a6990 | 620 | |
574a6990 | 621 | |
622 | /* C++ language option variables. */ | |
623 | ||
624 | ||
574a6990 | 625 | /* Nonzero means generate separate instantiation control files and |
626 | juggle them at link time. */ | |
627 | ||
628 | extern int flag_use_repository; | |
629 | ||
6dcdb5de | 630 | /* The supported C++ dialects. */ |
631 | ||
632 | enum cxx_dialect { | |
0d84dc2d | 633 | /* C++98 with TC1 */ |
6dcdb5de | 634 | cxx98, |
0d84dc2d | 635 | cxx03 = cxx98, |
636 | /* C++11 */ | |
637 | cxx0x, | |
543efdbe | 638 | cxx11 = cxx0x, |
639 | /* C++1y (C++17?) */ | |
640 | cxx1y | |
6dcdb5de | 641 | }; |
0fe6eeac | 642 | |
6dcdb5de | 643 | /* The C++ dialect being used. C++98 is the default. */ |
644 | extern enum cxx_dialect cxx_dialect; | |
0fe6eeac | 645 | |
574a6990 | 646 | /* Maximum template instantiation depth. This limit is rather |
647 | arbitrary, but it exists to limit the time it takes to notice | |
54cf6eed | 648 | excessively recursive template instantiations. */ |
574a6990 | 649 | |
650 | extern int max_tinst_depth; | |
29d00ba7 | 651 | |
48d94ede | 652 | /* Nonzero means that we should not issue warnings about problems that |
653 | occur when the code is executed, because the code being processed | |
654 | is not expected to be executed. This is set during parsing. This | |
655 | is used for cases like sizeof() and "0 ? a : b". This is a count, | |
656 | not a bool, because unexecuted expressions can nest. */ | |
93894129 | 657 | |
48d94ede | 658 | extern int c_inhibit_evaluation_warnings; |
93894129 | 659 | |
7f5f3953 | 660 | /* Whether lexing has been completed, so subsequent preprocessor |
661 | errors should use the compiler's input_location. */ | |
662 | ||
663 | extern bool done_lexing; | |
664 | ||
29d00ba7 | 665 | /* C types are partitioned into three subsets: object, function, and |
666 | incomplete types. */ | |
667 | #define C_TYPE_OBJECT_P(type) \ | |
668 | (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type)) | |
669 | ||
670 | #define C_TYPE_INCOMPLETE_P(type) \ | |
671 | (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type) == 0) | |
672 | ||
673 | #define C_TYPE_FUNCTION_P(type) \ | |
674 | (TREE_CODE (type) == FUNCTION_TYPE) | |
675 | ||
676 | /* For convenience we define a single macro to identify the class of | |
677 | object or incomplete types. */ | |
678 | #define C_TYPE_OBJECT_OR_INCOMPLETE_P(type) \ | |
679 | (!C_TYPE_FUNCTION_P (type)) | |
680 | ||
79396169 | 681 | struct visibility_flags |
682 | { | |
683 | unsigned inpragma : 1; /* True when in #pragma GCC visibility. */ | |
684 | unsigned inlines_hidden : 1; /* True when -finlineshidden in effect. */ | |
685 | }; | |
686 | ||
687 | /* Global visibility options. */ | |
688 | extern struct visibility_flags visibility_options; | |
689 | ||
f8e93a2e | 690 | /* Attribute table common to the C front ends. */ |
691 | extern const struct attribute_spec c_common_attribute_table[]; | |
692 | extern const struct attribute_spec c_common_format_attribute_table[]; | |
693 | ||
65b7f83f | 694 | /* Pointer to function to lazily generate the VAR_DECL for __FUNCTION__ etc. |
9e5a737d | 695 | ID is the identifier to use, NAME is the string. |
696 | TYPE_DEP indicates whether it depends on type of the function or not | |
697 | (i.e. __PRETTY_FUNCTION__). */ | |
698 | ||
e60a6f7b | 699 | extern tree (*make_fname_decl) (location_t, tree, int); |
1cae46be | 700 | |
6ad8abad | 701 | /* In c-decl.c and cp/tree.c. FIXME. */ |
34208e18 | 702 | extern void c_register_addr_space (const char *str, addr_space_t as); |
6ad8abad | 703 | |
704 | /* In c-common.c. */ | |
93be21c0 | 705 | extern bool in_late_binary_op; |
6d5d708e | 706 | extern const char *c_addr_space_name (addr_space_t as); |
1cae46be | 707 | extern tree identifier_global_value (tree); |
27282252 | 708 | extern tree c_linkage_bindings (tree); |
1cae46be | 709 | extern void record_builtin_type (enum rid, const char *, tree); |
710 | extern tree build_void_list_node (void); | |
711 | extern void start_fname_decls (void); | |
712 | extern void finish_fname_decls (void); | |
713 | extern const char *fname_as_string (int); | |
e3b80d49 | 714 | extern tree fname_decl (location_t, unsigned, tree); |
1cae46be | 715 | |
83e25171 | 716 | extern int check_user_alignment (const_tree, bool); |
774e9d58 | 717 | extern void check_function_arguments (const_tree, int, tree *); |
1cae46be | 718 | extern void check_function_arguments_recurse (void (*) |
719 | (void *, tree, | |
720 | unsigned HOST_WIDE_INT), | |
721 | void *, tree, | |
722 | unsigned HOST_WIDE_INT); | |
d43cee80 | 723 | extern bool check_builtin_function_arguments (tree, int, tree *); |
d01f58f9 | 724 | extern void check_function_format (tree, int, tree *); |
1cae46be | 725 | extern tree handle_format_attribute (tree *, tree, tree, int, bool *); |
726 | extern tree handle_format_arg_attribute (tree *, tree, tree, int, bool *); | |
47b19b94 | 727 | extern bool attribute_takes_identifier_p (const_tree); |
3c6c0e40 | 728 | extern bool c_common_handle_option (size_t, const char *, int, int, location_t, |
b78351e5 | 729 | const struct cl_option_handlers *); |
c94b1d0e | 730 | extern bool default_handle_c_option (size_t, const char *, int); |
1cae46be | 731 | extern tree c_common_type_for_mode (enum machine_mode, int); |
732 | extern tree c_common_type_for_size (unsigned int, int); | |
9421ebb9 | 733 | extern tree c_common_fixed_point_type_for_size (unsigned int, unsigned int, |
734 | int, int); | |
11773141 | 735 | extern tree c_common_unsigned_type (tree); |
1cae46be | 736 | extern tree c_common_signed_type (tree); |
737 | extern tree c_common_signed_or_unsigned_type (int, tree); | |
9b88d08d | 738 | extern void c_common_init_ts (void); |
c0e47fd4 | 739 | extern tree c_build_bitfield_integer_type (unsigned HOST_WIDE_INT, int); |
7dfa155b | 740 | extern bool unsafe_conversion_p (tree, tree, bool); |
9f627b1a | 741 | extern bool decl_with_nonnull_addr_p (const_tree); |
a75b1c71 | 742 | extern tree c_fully_fold (tree, bool, bool *); |
743 | extern tree decl_constant_value_for_optimization (tree); | |
f59e3889 | 744 | extern tree c_wrap_maybe_const (tree, bool); |
a75b1c71 | 745 | extern tree c_save_expr (tree); |
8e70fb09 | 746 | extern tree c_common_truthvalue_conversion (location_t, tree); |
1cae46be | 747 | extern void c_apply_type_quals_to_decl (int, tree); |
e60a6f7b | 748 | extern tree c_sizeof_or_alignof_type (location_t, tree, bool, int); |
749 | extern tree c_alignof_expr (location_t, tree); | |
72040e7e | 750 | /* Print an error message for invalid operands to arith operation CODE. |
751 | NOP_EXPR is used as a special case (see truthvalue_conversion). */ | |
8e70fb09 | 752 | extern void binary_op_error (location_t, enum tree_code, tree, tree); |
1cae46be | 753 | extern tree fix_string_type (tree); |
1cae46be | 754 | extern void constant_expression_warning (tree); |
07317e69 | 755 | extern void constant_expression_error (tree); |
e6fa0ea6 | 756 | extern bool strict_aliasing_warning (tree, tree, tree); |
57f872a2 | 757 | extern void sizeof_pointer_memaccess_warning (location_t *, tree, |
f1f41a6c | 758 | vec<tree, va_gc> *, tree *, |
f003f5dc | 759 | bool (*) (tree, tree)); |
59dd8856 | 760 | extern void warnings_for_convert_and_check (tree, tree, tree); |
1cae46be | 761 | extern tree convert_and_check (tree, tree); |
e60a6f7b | 762 | extern void overflow_warning (location_t, tree); |
3d177e8c | 763 | extern bool warn_if_unused_value (const_tree, location_t); |
9c20c4fc | 764 | extern void warn_logical_operator (location_t, enum tree_code, tree, |
03033af4 | 765 | enum tree_code, tree, enum tree_code, tree); |
3f08e399 | 766 | extern void check_main_parameter_types (tree decl); |
3aa0c315 | 767 | extern bool c_determine_visibility (tree); |
491255f5 | 768 | extern bool same_scalar_type_ignoring_signedness (tree, tree); |
3ae3a17f | 769 | extern void mark_valid_location_for_stdc_pragma (bool); |
770 | extern bool valid_location_for_stdc_pragma_p (void); | |
771 | extern void set_float_const_decimal64 (void); | |
772 | extern void clear_float_const_decimal64 (void); | |
773 | extern bool float_const_decimal64_p (void); | |
29d00ba7 | 774 | |
a9ffdd35 | 775 | extern bool keyword_begins_type_specifier (enum rid); |
776 | extern bool keyword_is_storage_class_specifier (enum rid); | |
777 | extern bool keyword_is_type_qualifier (enum rid); | |
fad3f658 | 778 | extern bool keyword_is_decl_specifier (enum rid); |
ffcdbf9c | 779 | extern bool cxx_fundamental_alignment_p (unsigned); |
a9ffdd35 | 780 | |
e60a6f7b | 781 | #define c_sizeof(LOC, T) c_sizeof_or_alignof_type (LOC, T, true, 1) |
782 | #define c_alignof(LOC, T) c_sizeof_or_alignof_type (LOC, T, false, 1) | |
72040e7e | 783 | |
2561cea2 | 784 | /* Subroutine of build_binary_op, used for certain operations. */ |
785 | extern tree shorten_binary_op (tree result_type, tree op0, tree op1, bool bitwise); | |
786 | ||
72040e7e | 787 | /* Subroutine of build_binary_op, used for comparison operations. |
788 | See if the operands have both been converted from subword integer types | |
789 | and, if so, perhaps change them both back to their original type. */ | |
1cae46be | 790 | extern tree shorten_compare (tree *, tree *, tree *, enum tree_code *); |
72040e7e | 791 | |
389dd41b | 792 | extern tree pointer_int_sum (location_t, enum tree_code, tree, tree); |
83e32a86 | 793 | |
794 | /* Add qualifiers to a type, in the fashion for C. */ | |
1cae46be | 795 | extern tree c_build_qualified_type (tree, int); |
83e32a86 | 796 | |
72040e7e | 797 | /* Build tree nodes and builtin functions common to both C and C++ language |
798 | frontends. */ | |
1cae46be | 799 | extern void c_common_nodes_and_builtins (void); |
a66c9326 | 800 | |
1cae46be | 801 | extern void disable_builtin_function (const char *); |
dd878098 | 802 | |
79b01846 | 803 | extern void set_compound_literal_name (tree decl); |
804 | ||
e60a6f7b | 805 | extern tree build_va_arg (location_t, tree, tree); |
43f74bc4 | 806 | |
c123f04d | 807 | extern const unsigned int c_family_lang_mask; |
e88d34f6 | 808 | extern unsigned int c_common_option_lang_mask (void); |
24ca3b4e | 809 | extern void c_common_initialize_diagnostics (diagnostic_context *); |
e88d34f6 | 810 | extern bool c_common_complain_wrong_lang_p (const struct cl_option *); |
f3f006ad | 811 | extern void c_common_init_options_struct (struct gcc_options *); |
e88d34f6 | 812 | extern void c_common_init_options (unsigned int, struct cl_decoded_option *); |
1cae46be | 813 | extern bool c_common_post_options (const char **); |
814 | extern bool c_common_init (void); | |
815 | extern void c_common_finish (void); | |
b8ba44e7 | 816 | extern void c_common_parse_file (void); |
32c2fdea | 817 | extern alias_set_type c_common_get_alias_set (tree); |
b268e47e | 818 | extern void c_register_builtin_type (tree, const char*); |
9f627b1a | 819 | extern bool c_promoting_integer_type_p (const_tree); |
820 | extern int self_promoting_args_p (const_tree); | |
c10de5e7 | 821 | extern tree strip_pointer_operator (tree); |
57a0ed23 | 822 | extern tree strip_pointer_or_array_types (tree); |
624d37a6 | 823 | extern HOST_WIDE_INT c_common_to_target_charset (HOST_WIDE_INT); |
92915e1c | 824 | |
40109983 | 825 | /* This is the basic parsing function. */ |
826 | extern void c_parse_file (void); | |
40109983 | 827 | |
b9bdfa0b | 828 | extern void warn_for_omitted_condop (location_t, tree); |
624d37a6 | 829 | |
a08e60ae | 830 | /* These macros provide convenient access to the various _STMT nodes. */ |
831 | ||
2363ef00 | 832 | /* Nonzero if a given STATEMENT_LIST represents the outermost binding |
833 | if a statement expression. */ | |
834 | #define STATEMENT_LIST_STMT_EXPR(NODE) \ | |
835 | TREE_LANG_FLAG_1 (STATEMENT_LIST_CHECK (NODE)) | |
2e3f4877 | 836 | |
837 | /* Nonzero if a label has been added to the statement list. */ | |
838 | #define STATEMENT_LIST_HAS_LABEL(NODE) \ | |
839 | TREE_LANG_FLAG_3 (STATEMENT_LIST_CHECK (NODE)) | |
2363ef00 | 840 | |
a75b1c71 | 841 | /* C_MAYBE_CONST_EXPR accessors. */ |
842 | #define C_MAYBE_CONST_EXPR_PRE(NODE) \ | |
843 | TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 0) | |
844 | #define C_MAYBE_CONST_EXPR_EXPR(NODE) \ | |
845 | TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 1) | |
846 | #define C_MAYBE_CONST_EXPR_INT_OPERANDS(NODE) \ | |
847 | TREE_LANG_FLAG_0 (C_MAYBE_CONST_EXPR_CHECK (NODE)) | |
848 | #define C_MAYBE_CONST_EXPR_NON_CONST(NODE) \ | |
849 | TREE_LANG_FLAG_1 (C_MAYBE_CONST_EXPR_CHECK (NODE)) | |
850 | #define EXPR_INT_CONST_OPERANDS(EXPR) \ | |
851 | (INTEGRAL_TYPE_P (TREE_TYPE (EXPR)) \ | |
852 | && (TREE_CODE (EXPR) == INTEGER_CST \ | |
853 | || (TREE_CODE (EXPR) == C_MAYBE_CONST_EXPR \ | |
854 | && C_MAYBE_CONST_EXPR_INT_OPERANDS (EXPR)))) | |
855 | ||
c25509f2 | 856 | /* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */ |
857 | #define DECL_C_BIT_FIELD(NODE) \ | |
858 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1) | |
859 | #define SET_DECL_C_BIT_FIELD(NODE) \ | |
860 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 1) | |
861 | #define CLEAR_DECL_C_BIT_FIELD(NODE) \ | |
862 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0) | |
863 | ||
e60a6f7b | 864 | extern tree do_case (location_t, tree, tree); |
865 | extern tree build_stmt (location_t, enum tree_code, ...); | |
0b5fc5d6 | 866 | extern tree build_real_imag_expr (location_t, enum tree_code, tree); |
5c3247a9 | 867 | |
29d00ba7 | 868 | /* These functions must be defined by each front-end which implements |
869 | a variant of the C language. They are used in c-common.c. */ | |
870 | ||
b6889cb0 | 871 | extern tree build_unary_op (location_t, enum tree_code, tree, int); |
8e70fb09 | 872 | extern tree build_binary_op (location_t, enum tree_code, tree, tree, int); |
b96dc121 | 873 | extern tree perform_integral_promotions (tree); |
29d00ba7 | 874 | |
8f0d6fd4 | 875 | /* These functions must be defined by each front-end which implements |
876 | a variant of the C language. They are used by port files. */ | |
877 | ||
878 | extern tree default_conversion (tree); | |
879 | ||
29d00ba7 | 880 | /* Given two integer or real types, return the type for their sum. |
881 | Given two compatible ANSI C types, returns the merged type. */ | |
882 | ||
1cae46be | 883 | extern tree common_type (tree, tree); |
351c3a61 | 884 | |
1cae46be | 885 | extern tree decl_constant_value (tree); |
225ec6aa | 886 | |
4f9a1c9b | 887 | /* Handle increment and decrement of boolean types. */ |
1cae46be | 888 | extern tree boolean_increment (enum tree_code, tree); |
4f9a1c9b | 889 | |
1cae46be | 890 | extern int case_compare (splay_tree_key, splay_tree_key); |
e41f0d80 | 891 | |
e60a6f7b | 892 | extern tree c_add_case_label (location_t, splay_tree, tree, tree, tree, tree); |
e41f0d80 | 893 | |
e7911019 | 894 | extern void c_do_switch_warnings (splay_tree, location_t, tree, tree); |
4ee9c684 | 895 | |
e60a6f7b | 896 | extern tree build_function_call (location_t, tree, tree); |
edbbe5ca | 897 | |
f1f41a6c | 898 | extern tree build_function_call_vec (location_t, tree, vec<tree, va_gc> *, |
899 | vec<tree, va_gc> *); | |
b9c74b4d | 900 | |
f1f41a6c | 901 | extern tree resolve_overloaded_builtin (location_t, tree, vec<tree, va_gc> *); |
b6a5fc45 | 902 | |
dda49785 | 903 | extern tree finish_label_address_expr (tree, location_t); |
d0a47c8d | 904 | |
905 | /* Same function prototype, but the C and C++ front ends have | |
906 | different implementations. Used in c-common.c. */ | |
1cae46be | 907 | extern tree lookup_label (tree); |
d1c41717 | 908 | extern tree lookup_name (tree); |
79973b57 | 909 | extern bool lvalue_p (const_tree); |
d0a47c8d | 910 | |
ed7c4e62 | 911 | extern bool vector_targets_convertible_p (const_tree t1, const_tree t2); |
9f627b1a | 912 | extern bool vector_types_convertible_p (const_tree t1, const_tree t2, bool emit_lax_note); |
bf0cb017 | 913 | extern tree c_build_vec_perm_expr (location_t, tree, tree, tree); |
8b4b9810 | 914 | |
60ffaf4d | 915 | extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *); |
e41f0d80 | 916 | |
1cae46be | 917 | extern void init_c_lex (void); |
90cc7820 | 918 | |
1cae46be | 919 | extern void c_cpp_builtins (cpp_reader *); |
46f8e3b0 | 920 | extern void c_cpp_builtins_optimize_pragma (cpp_reader *, tree, tree); |
9f19e0f9 | 921 | extern bool c_cpp_error (cpp_reader *, int, int, location_t, unsigned int, |
922 | const char *, va_list *) | |
923 | ATTRIBUTE_GCC_DIAG(6,0); | |
6019c708 | 924 | |
92468061 | 925 | extern bool parse_optimize_options (tree, bool); |
926 | ||
be1ee46e | 927 | /* Positive if an implicit `extern "C"' scope has just been entered; |
928 | negative if such a scope has just been exited. */ | |
34585765 | 929 | extern GTY(()) int pending_lang_change; |
be1ee46e | 930 | |
518796ad | 931 | /* Information recorded about each file examined during compilation. */ |
932 | ||
933 | struct c_fileinfo | |
934 | { | |
935 | int time; /* Time spent in the file. */ | |
62bf98ad | 936 | |
937 | /* Flags used only by C++. | |
938 | INTERFACE_ONLY nonzero means that we are in an "interface" section | |
939 | of the compiler. INTERFACE_UNKNOWN nonzero means we cannot trust | |
940 | the value of INTERFACE_ONLY. If INTERFACE_UNKNOWN is zero and | |
941 | INTERFACE_ONLY is zero, it means that we are responsible for | |
942 | exporting definitions that others might need. */ | |
943 | short interface_only; | |
518796ad | 944 | short interface_unknown; |
945 | }; | |
946 | ||
1cae46be | 947 | struct c_fileinfo *get_fileinfo (const char *); |
948 | extern void dump_time_statistics (void); | |
949 | ||
950 | extern bool c_dump_tree (void *, tree); | |
951 | ||
2569a1be | 952 | extern void verify_sequence_points (tree); |
953 | ||
7549df0d | 954 | extern tree fold_offsetof_1 (tree); |
955 | extern tree fold_offsetof (tree); | |
af28855b | 956 | |
ab6bb714 | 957 | /* Places where an lvalue, or modifiable lvalue, may be required. |
e35976b1 | 958 | Used to select diagnostic messages in lvalue_error and |
ab6bb714 | 959 | readonly_error. */ |
960 | enum lvalue_use { | |
961 | lv_assign, | |
962 | lv_increment, | |
963 | lv_decrement, | |
964 | lv_addressof, | |
965 | lv_asm | |
966 | }; | |
967 | ||
a1f90215 | 968 | extern void readonly_error (tree, enum lvalue_use); |
fdd84b77 | 969 | extern void lvalue_error (location_t, enum lvalue_use); |
b1bbc8e5 | 970 | extern void invalid_indirection_error (location_t, tree, ref_operator); |
ab6bb714 | 971 | |
c271bdb2 | 972 | extern int complete_array_type (tree *, tree, bool); |
973 | ||
b6a5fc45 | 974 | extern tree builtin_type_for_size (int, bool); |
975 | ||
93426222 | 976 | extern void c_common_mark_addressable_vec (tree); |
977 | ||
2840aae4 | 978 | extern void warn_array_subscript_with_type_char (tree); |
b0e7825e | 979 | extern void warn_about_parentheses (location_t, |
980 | enum tree_code, | |
82012ffe | 981 | enum tree_code, tree, |
982 | enum tree_code, tree); | |
92fccaaa | 983 | extern void warn_for_unused_label (tree label); |
b6889cb0 | 984 | extern void warn_for_div_by_zero (location_t, tree divisor); |
8e70fb09 | 985 | extern void warn_for_sign_compare (location_t, |
48e1416a | 986 | tree orig_op0, tree orig_op1, |
987 | tree op0, tree op1, | |
988 | tree result_type, | |
13869a99 | 989 | enum tree_code resultcode); |
5ba33bf4 | 990 | extern void do_warn_double_promotion (tree, tree, tree, const char *, |
991 | location_t); | |
ab77850e | 992 | extern void set_underlying_type (tree); |
a4e3ffad | 993 | extern void record_locally_defined_typedef (tree); |
994 | extern void maybe_record_typedef_use (tree); | |
995 | extern void maybe_warn_unused_local_typedefs (void); | |
f1f41a6c | 996 | extern vec<tree, va_gc> *make_tree_vector (void); |
997 | extern void release_tree_vector (vec<tree, va_gc> *); | |
998 | extern vec<tree, va_gc> *make_tree_vector_single (tree); | |
999 | extern vec<tree, va_gc> *make_tree_vector_from_list (tree); | |
1000 | extern vec<tree, va_gc> *make_tree_vector_copy (const vec<tree, va_gc> *); | |
e534436e | 1001 | |
8495c0ca | 1002 | /* In c-gimplify.c */ |
4ee9c684 | 1003 | extern void c_genericize (tree); |
75a70cf9 | 1004 | extern int c_gimplify_expr (tree *, gimple_seq *, gimple_seq *); |
e60a6f7b | 1005 | extern tree c_build_bind_expr (location_t, tree, tree); |
4ee9c684 | 1006 | |
d718b525 | 1007 | /* In c-pch.c */ |
1cae46be | 1008 | extern void pch_init (void); |
6adc88f8 | 1009 | extern void pch_cpp_save_state (void); |
1cae46be | 1010 | extern int c_common_valid_pch (cpp_reader *pfile, const char *name, int fd); |
1011 | extern void c_common_read_pch (cpp_reader *pfile, const char *name, int fd, | |
1012 | const char *orig); | |
1013 | extern void c_common_write_pch (void); | |
ddf4604f | 1014 | extern void c_common_no_more_pch (void); |
b75b98aa | 1015 | extern void c_common_pch_pragma (cpp_reader *pfile, const char *); |
f1035767 | 1016 | |
1017 | /* In *-checksum.c */ | |
1018 | extern const unsigned char executable_checksum[16]; | |
d718b525 | 1019 | |
46f8e3b0 | 1020 | /* In c-cppbuiltin.c */ |
1021 | extern void builtin_define_std (const char *macro); | |
1cae46be | 1022 | extern void builtin_define_with_value (const char *, const char *, int); |
1023 | extern void c_stddef_cpp_builtins (void); | |
1024 | extern void fe_file_change (const struct line_map *); | |
ba99525e | 1025 | extern void c_parse_error (const char *, enum cpp_ttype, tree, unsigned char); |
e920deaf | 1026 | |
1027 | /* In c-ppoutput.c */ | |
1cae46be | 1028 | extern void init_pp_output (FILE *); |
1029 | extern void preprocess_file (cpp_reader *); | |
1030 | extern void pp_file_change (const struct line_map *); | |
d732fcf0 | 1031 | extern void pp_dir_change (cpp_reader *, const char *); |
be7350e7 | 1032 | extern bool check_missing_format_attribute (tree, tree); |
573aba85 | 1033 | |
1e8e9920 | 1034 | /* In c-omp.c */ |
e60a6f7b | 1035 | extern tree c_finish_omp_master (location_t, tree); |
1036 | extern tree c_finish_omp_critical (location_t, tree, tree); | |
1037 | extern tree c_finish_omp_ordered (location_t, tree); | |
1038 | extern void c_finish_omp_barrier (location_t); | |
2169f33b | 1039 | extern tree c_finish_omp_atomic (location_t, enum tree_code, enum tree_code, |
1040 | tree, tree, tree, tree, tree); | |
e60a6f7b | 1041 | extern void c_finish_omp_flush (location_t); |
1042 | extern void c_finish_omp_taskwait (location_t); | |
2169f33b | 1043 | extern void c_finish_omp_taskyield (location_t); |
1e8e9920 | 1044 | extern tree c_finish_omp_for (location_t, tree, tree, tree, tree, tree, tree); |
e60a6f7b | 1045 | extern void c_split_parallel_clauses (location_t, tree, tree *, tree *); |
1e8e9920 | 1046 | extern enum omp_clause_default_kind c_omp_predetermined_sharing (tree); |
1047 | ||
1048 | /* Not in c-omp.c; provided by the front end. */ | |
1049 | extern bool c_omp_sharing_predetermined (tree); | |
1050 | extern tree c_omp_remap_decl (tree, bool); | |
1a4c44c5 | 1051 | extern void record_types_used_by_current_var_decl (tree); |
1e8e9920 | 1052 | |
a68f7a8d | 1053 | /* Return next tree in the chain for chain_next walking of tree nodes. */ |
1054 | static inline tree | |
1055 | c_tree_chain_next (tree t) | |
1056 | { | |
1057 | /* TREE_CHAIN of a type is TYPE_STUB_DECL, which is different | |
1058 | kind of object, never a long chain of nodes. Prefer | |
1059 | TYPE_NEXT_VARIANT for types. */ | |
1060 | if (CODE_CONTAINS_STRUCT (TREE_CODE (t), TS_TYPE_COMMON)) | |
1061 | return TYPE_NEXT_VARIANT (t); | |
1062 | /* Otherwise, if there is TREE_CHAIN, return it. */ | |
1063 | if (CODE_CONTAINS_STRUCT (TREE_CODE (t), TS_COMMON)) | |
1064 | return TREE_CHAIN (t); | |
1065 | return NULL; | |
1066 | } | |
1067 | ||
4c0315d0 | 1068 | /* Mask used by tm_stmt_attr. */ |
1069 | #define TM_STMT_ATTR_OUTER 2 | |
1070 | #define TM_STMT_ATTR_ATOMIC 4 | |
1071 | #define TM_STMT_ATTR_RELAXED 8 | |
1072 | ||
1073 | extern int parse_tm_stmt_attr (tree, int); | |
1074 | ||
1075 | /* Mask used by tm_attr_to_mask and tm_mask_to_attr. Note that these | |
1076 | are ordered specifically such that more restrictive attributes are | |
1077 | at lower bit positions. This fact is known by the C++ tm attribute | |
1078 | inheritance code such that least bit extraction (mask & -mask) results | |
1079 | in the most restrictive attribute. */ | |
1080 | #define TM_ATTR_SAFE 1 | |
1081 | #define TM_ATTR_CALLABLE 2 | |
1082 | #define TM_ATTR_PURE 4 | |
1083 | #define TM_ATTR_IRREVOCABLE 8 | |
1084 | #define TM_ATTR_MAY_CANCEL_OUTER 16 | |
1085 | ||
1086 | extern int tm_attr_to_mask (tree); | |
1087 | extern tree tm_mask_to_attr (int); | |
1088 | extern tree find_tm_attribute (tree); | |
1089 | ||
244db24d | 1090 | /* A suffix-identifier value doublet that represents user-defined literals |
1091 | for C++-0x. */ | |
1092 | struct GTY(()) tree_userdef_literal { | |
1093 | struct tree_base base; | |
1094 | tree suffix_id; | |
1095 | tree value; | |
1096 | tree num_string; | |
1097 | }; | |
1098 | ||
1099 | #define USERDEF_LITERAL_SUFFIX_ID(NODE) \ | |
1100 | (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->suffix_id) | |
1101 | ||
1102 | #define USERDEF_LITERAL_VALUE(NODE) \ | |
1103 | (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->value) | |
1104 | ||
1105 | #define USERDEF_LITERAL_NUM_STRING(NODE) \ | |
1106 | (((struct tree_userdef_literal *)USERDEF_LITERAL_CHECK (NODE))->num_string) | |
1107 | ||
1108 | #define USERDEF_LITERAL_TYPE(NODE) \ | |
1109 | (TREE_TYPE (USERDEF_LITERAL_VALUE (NODE))) | |
1110 | ||
1111 | extern tree build_userdef_literal (tree suffix_id, tree value, tree num_string); | |
1112 | ||
7059d45d | 1113 | extern void convert_vector_to_pointer_for_subscript (location_t, tree*, tree); |
1114 | ||
41ed701a | 1115 | /* Possibe cases of scalar_to_vector conversion. */ |
1116 | enum stv_conv { | |
1117 | stv_error, /* Error occured. */ | |
1118 | stv_nothing, /* Nothing happened. */ | |
1119 | stv_firstarg, /* First argument must be expanded. */ | |
1120 | stv_secondarg /* Second argument must be expanded. */ | |
1121 | }; | |
1122 | ||
1123 | extern enum stv_conv scalar_to_vector (location_t loc, enum tree_code code, | |
1124 | tree op0, tree op1, bool); | |
1125 | ||
2a281353 | 1126 | #endif /* ! GCC_C_COMMON_H */ |