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7f4edbcb | 1 | /* Definitions for c-common.c. |
517cbe13 | 2 | Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998, |
7a9bf9a4 | 3 | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010 |
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 | ||
79 | /* ObjC */ | |
b8363a24 | 80 | RID_IN, RID_OUT, RID_INOUT, RID_BYCOPY, RID_BYREF, RID_ONEWAY, |
0e5921e8 | 81 | |
fa5da7de JM |
82 | /* C (reserved and imaginary types not implemented, so any use is a |
83 | syntax error) */ | |
84 | RID_IMAGINARY, | |
85 | ||
0e5921e8 ZW |
86 | /* C */ |
87 | RID_INT, RID_CHAR, RID_FLOAT, RID_DOUBLE, RID_VOID, | |
a6766312 | 88 | RID_INT128, |
0e5921e8 ZW |
89 | RID_ENUM, RID_STRUCT, RID_UNION, RID_IF, RID_ELSE, |
90 | RID_WHILE, RID_DO, RID_FOR, RID_SWITCH, RID_CASE, | |
91 | RID_DEFAULT, RID_BREAK, RID_CONTINUE, RID_RETURN, RID_GOTO, | |
92 | RID_SIZEOF, | |
93 | ||
94 | /* C extensions */ | |
95 | RID_ASM, RID_TYPEOF, RID_ALIGNOF, RID_ATTRIBUTE, RID_VA_ARG, | |
da5b307a JM |
96 | RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_CHOOSE_EXPR, |
97 | RID_TYPES_COMPATIBLE_P, | |
9a8ce21f | 98 | RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128, |
ab22c1fa | 99 | RID_FRACT, RID_ACCUM, |
0e5921e8 | 100 | |
eea1139b ILT |
101 | /* This means to warn that this is a C++ keyword, and then treat it |
102 | as a normal identifier. */ | |
103 | RID_CXX_COMPAT_WARN, | |
104 | ||
0ba8a114 NS |
105 | /* Too many ways of getting the name of a function as a string */ |
106 | RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME, | |
107 | ||
0e5921e8 ZW |
108 | /* C++ */ |
109 | RID_BOOL, RID_WCHAR, RID_CLASS, | |
110 | RID_PUBLIC, RID_PRIVATE, RID_PROTECTED, | |
111 | RID_TEMPLATE, RID_NULL, RID_CATCH, | |
112 | RID_DELETE, RID_FALSE, RID_NAMESPACE, | |
c22cacf3 MS |
113 | RID_NEW, RID_OFFSETOF, RID_OPERATOR, |
114 | RID_THIS, RID_THROW, RID_TRUE, | |
115 | RID_TRY, RID_TYPENAME, RID_TYPEID, | |
b6baa67d | 116 | RID_USING, RID_CHAR16, RID_CHAR32, |
0e5921e8 ZW |
117 | |
118 | /* casts */ | |
119 | RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST, | |
120 | ||
cb68ec50 PC |
121 | /* C++ extensions */ |
122 | RID_HAS_NOTHROW_ASSIGN, RID_HAS_NOTHROW_CONSTRUCTOR, | |
123 | RID_HAS_NOTHROW_COPY, RID_HAS_TRIVIAL_ASSIGN, | |
124 | RID_HAS_TRIVIAL_CONSTRUCTOR, RID_HAS_TRIVIAL_COPY, | |
125 | RID_HAS_TRIVIAL_DESTRUCTOR, RID_HAS_VIRTUAL_DESTRUCTOR, | |
126 | RID_IS_ABSTRACT, RID_IS_BASE_OF, | |
127 | RID_IS_CONVERTIBLE_TO, RID_IS_CLASS, | |
128 | RID_IS_EMPTY, RID_IS_ENUM, | |
129 | RID_IS_POD, RID_IS_POLYMORPHIC, | |
c32097d8 | 130 | RID_IS_STD_LAYOUT, RID_IS_TRIVIAL, |
cb68ec50 PC |
131 | RID_IS_UNION, |
132 | ||
218f0015 | 133 | /* C++0x */ |
0a766368 | 134 | RID_CONSTEXPR, RID_DECLTYPE, RID_NOEXCEPT, RID_NULLPTR, RID_STATIC_ASSERT, |
218f0015 | 135 | |
40f03658 | 136 | /* Objective-C */ |
3a3589b4 | 137 | RID_AT_ENCODE, RID_AT_END, |
0e5921e8 ZW |
138 | RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS, |
139 | RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC, | |
c22cacf3 | 140 | RID_AT_PROTOCOL, RID_AT_SELECTOR, |
264fa2db ZL |
141 | RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH, |
142 | RID_AT_FINALLY, RID_AT_SYNCHRONIZED, | |
143 | RID_AT_INTERFACE, | |
0e5921e8 ZW |
144 | RID_AT_IMPLEMENTATION, |
145 | ||
36c5e70a BE |
146 | /* Named address support, mapping the keyword to a particular named address |
147 | number. Named address space 0 is reserved for the generic address. If | |
148 | there are more than 254 named addresses, the addr_space_t type will need | |
149 | to be grown from an unsigned char to unsigned short. */ | |
150 | RID_ADDR_SPACE_0, /* generic address */ | |
151 | RID_ADDR_SPACE_1, | |
152 | RID_ADDR_SPACE_2, | |
153 | RID_ADDR_SPACE_3, | |
154 | RID_ADDR_SPACE_4, | |
155 | RID_ADDR_SPACE_5, | |
156 | RID_ADDR_SPACE_6, | |
157 | RID_ADDR_SPACE_7, | |
158 | RID_ADDR_SPACE_8, | |
159 | RID_ADDR_SPACE_9, | |
160 | RID_ADDR_SPACE_10, | |
161 | RID_ADDR_SPACE_11, | |
162 | RID_ADDR_SPACE_12, | |
163 | RID_ADDR_SPACE_13, | |
164 | RID_ADDR_SPACE_14, | |
165 | RID_ADDR_SPACE_15, | |
166 | ||
167 | RID_FIRST_ADDR_SPACE = RID_ADDR_SPACE_0, | |
168 | RID_LAST_ADDR_SPACE = RID_ADDR_SPACE_15, | |
169 | ||
0e5921e8 ZW |
170 | RID_MAX, |
171 | ||
172 | RID_FIRST_MODIFIER = RID_STATIC, | |
b8363a24 ZW |
173 | RID_LAST_MODIFIER = RID_ONEWAY, |
174 | ||
14c2101d JM |
175 | RID_FIRST_CXX0X = RID_CONSTEXPR, |
176 | RID_LAST_CXX0X = RID_STATIC_ASSERT, | |
b8363a24 ZW |
177 | RID_FIRST_AT = RID_AT_ENCODE, |
178 | RID_LAST_AT = RID_AT_IMPLEMENTATION, | |
179 | RID_FIRST_PQ = RID_IN, | |
180 | RID_LAST_PQ = RID_ONEWAY | |
f09f1de5 MM |
181 | }; |
182 | ||
b8363a24 | 183 | #define OBJC_IS_AT_KEYWORD(rid) \ |
3f75a254 JM |
184 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_AT && \ |
185 | (unsigned int) (rid) <= (unsigned int) RID_LAST_AT) | |
b8363a24 ZW |
186 | |
187 | #define OBJC_IS_PQ_KEYWORD(rid) \ | |
3f75a254 JM |
188 | ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PQ && \ |
189 | (unsigned int) (rid) <= (unsigned int) RID_LAST_PQ) | |
b8363a24 | 190 | |
f09f1de5 MM |
191 | /* The elements of `ridpointers' are identifier nodes for the reserved |
192 | type names and storage classes. It is indexed by a RID_... value. */ | |
3f75a254 | 193 | extern GTY ((length ("(int) RID_MAX"))) tree *ridpointers; |
f09f1de5 | 194 | |
7f4edbcb BS |
195 | /* Standard named or nameless data types of the C compiler. */ |
196 | ||
197 | enum c_tree_index | |
198 | { | |
b6baa67d KVH |
199 | CTI_CHAR16_TYPE, |
200 | CTI_CHAR32_TYPE, | |
7f4edbcb | 201 | CTI_WCHAR_TYPE, |
207bf79d | 202 | CTI_UNDERLYING_WCHAR_TYPE, |
c5ab7f91 | 203 | CTI_WINT_TYPE, |
cd732418 JM |
204 | CTI_SIGNED_SIZE_TYPE, /* For format checking only. */ |
205 | CTI_UNSIGNED_PTRDIFF_TYPE, /* For format checking only. */ | |
b15ad712 JM |
206 | CTI_INTMAX_TYPE, |
207 | CTI_UINTMAX_TYPE, | |
7f4edbcb BS |
208 | CTI_WIDEST_INT_LIT_TYPE, |
209 | CTI_WIDEST_UINT_LIT_TYPE, | |
210 | ||
207bf79d JM |
211 | /* Types for <stdint.h>, that may not be defined on all |
212 | targets. */ | |
213 | CTI_SIG_ATOMIC_TYPE, | |
214 | CTI_INT8_TYPE, | |
215 | CTI_INT16_TYPE, | |
216 | CTI_INT32_TYPE, | |
217 | CTI_INT64_TYPE, | |
218 | CTI_UINT8_TYPE, | |
219 | CTI_UINT16_TYPE, | |
220 | CTI_UINT32_TYPE, | |
221 | CTI_UINT64_TYPE, | |
222 | CTI_INT_LEAST8_TYPE, | |
223 | CTI_INT_LEAST16_TYPE, | |
224 | CTI_INT_LEAST32_TYPE, | |
225 | CTI_INT_LEAST64_TYPE, | |
226 | CTI_UINT_LEAST8_TYPE, | |
227 | CTI_UINT_LEAST16_TYPE, | |
228 | CTI_UINT_LEAST32_TYPE, | |
229 | CTI_UINT_LEAST64_TYPE, | |
230 | CTI_INT_FAST8_TYPE, | |
231 | CTI_INT_FAST16_TYPE, | |
232 | CTI_INT_FAST32_TYPE, | |
233 | CTI_INT_FAST64_TYPE, | |
234 | CTI_UINT_FAST8_TYPE, | |
235 | CTI_UINT_FAST16_TYPE, | |
236 | CTI_UINT_FAST32_TYPE, | |
237 | CTI_UINT_FAST64_TYPE, | |
238 | CTI_INTPTR_TYPE, | |
239 | CTI_UINTPTR_TYPE, | |
240 | ||
7f4edbcb | 241 | CTI_CHAR_ARRAY_TYPE, |
b6baa67d KVH |
242 | CTI_CHAR16_ARRAY_TYPE, |
243 | CTI_CHAR32_ARRAY_TYPE, | |
7f4edbcb BS |
244 | CTI_WCHAR_ARRAY_TYPE, |
245 | CTI_INT_ARRAY_TYPE, | |
246 | CTI_STRING_TYPE, | |
247 | CTI_CONST_STRING_TYPE, | |
248 | ||
19552aa5 | 249 | /* Type for boolean expressions (bool in C++, int in C). */ |
de7df9eb JM |
250 | CTI_TRUTHVALUE_TYPE, |
251 | CTI_TRUTHVALUE_TRUE, | |
252 | CTI_TRUTHVALUE_FALSE, | |
253 | ||
7f4edbcb | 254 | CTI_DEFAULT_FUNCTION_TYPE, |
7f4edbcb | 255 | |
2ba84f36 | 256 | /* These are not types, but we have to look them up all the time. */ |
0ba8a114 NS |
257 | CTI_FUNCTION_NAME_DECL, |
258 | CTI_PRETTY_FUNCTION_NAME_DECL, | |
259 | CTI_C99_FUNCTION_NAME_DECL, | |
260 | CTI_SAVED_FUNCTION_NAME_DECLS, | |
c22cacf3 | 261 | |
ae499cce MM |
262 | CTI_VOID_ZERO, |
263 | ||
b2f97e4a MM |
264 | CTI_NULL, |
265 | ||
7f4edbcb BS |
266 | CTI_MAX |
267 | }; | |
268 | ||
5950c3c9 BE |
269 | #define C_CPP_HASHNODE(id) \ |
270 | (&(((struct c_common_identifier *) (id))->node)) | |
d75d71e0 ILT |
271 | #define C_RID_CODE(id) \ |
272 | ((enum rid) (((struct c_common_identifier *) (id))->node.rid_code)) | |
273 | #define C_SET_RID_CODE(id, code) \ | |
274 | (((struct c_common_identifier *) (id))->node.rid_code = (unsigned char) code) | |
2a967f3d NB |
275 | |
276 | /* Identifier part common to the C front ends. Inherits from | |
277 | tree_identifier, despite appearances. */ | |
d1b38208 | 278 | struct GTY(()) c_common_identifier { |
2a967f3d | 279 | struct tree_common common; |
17211ab5 | 280 | struct cpp_hashnode node; |
2a967f3d NB |
281 | }; |
282 | ||
eea1139b ILT |
283 | /* An entry in the reserved keyword table. */ |
284 | ||
285 | struct c_common_resword | |
286 | { | |
287 | const char *const word; | |
288 | ENUM_BITFIELD(rid) const rid : 16; | |
289 | const unsigned int disable : 16; | |
290 | }; | |
291 | ||
292 | /* Disable mask. Keywords are disabled if (reswords[i].disable & | |
293 | mask) is _true_. Thus for keywords which are present in all | |
294 | languages the disable field is zero. */ | |
295 | ||
296 | #define D_CONLY 0x001 /* C only (not in C++). */ | |
297 | #define D_CXXONLY 0x002 /* C++ only (not in C). */ | |
298 | #define D_C99 0x004 /* In C, C99 only. */ | |
299 | #define D_CXX0X 0x008 /* In C++, C++0X only. */ | |
300 | #define D_EXT 0x010 /* GCC extension. */ | |
301 | #define D_EXT89 0x020 /* GCC extension incorporated in C99. */ | |
302 | #define D_ASM 0x040 /* Disabled by -fno-asm. */ | |
303 | #define D_OBJC 0x080 /* In Objective C and neither C nor C++. */ | |
304 | #define D_CXX_OBJC 0x100 /* In Objective C, and C++, but not C. */ | |
305 | #define D_CXXWARN 0x200 /* In C warn with -Wcxx-compat. */ | |
306 | ||
307 | /* The reserved keyword table. */ | |
308 | extern const struct c_common_resword c_common_reswords[]; | |
309 | ||
310 | /* The number of items in the reserved keyword table. */ | |
311 | extern const unsigned int num_c_common_reswords; | |
312 | ||
b6baa67d KVH |
313 | #define char16_type_node c_global_trees[CTI_CHAR16_TYPE] |
314 | #define char32_type_node c_global_trees[CTI_CHAR32_TYPE] | |
7f4edbcb | 315 | #define wchar_type_node c_global_trees[CTI_WCHAR_TYPE] |
207bf79d | 316 | #define underlying_wchar_type_node c_global_trees[CTI_UNDERLYING_WCHAR_TYPE] |
c5ab7f91 | 317 | #define wint_type_node c_global_trees[CTI_WINT_TYPE] |
cd732418 JM |
318 | #define signed_size_type_node c_global_trees[CTI_SIGNED_SIZE_TYPE] |
319 | #define unsigned_ptrdiff_type_node c_global_trees[CTI_UNSIGNED_PTRDIFF_TYPE] | |
b15ad712 JM |
320 | #define intmax_type_node c_global_trees[CTI_INTMAX_TYPE] |
321 | #define uintmax_type_node c_global_trees[CTI_UINTMAX_TYPE] | |
7f4edbcb BS |
322 | #define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE] |
323 | #define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE] | |
324 | ||
207bf79d JM |
325 | #define sig_atomic_type_node c_global_trees[CTI_SIG_ATOMIC_TYPE] |
326 | #define int8_type_node c_global_trees[CTI_INT8_TYPE] | |
327 | #define int16_type_node c_global_trees[CTI_INT16_TYPE] | |
328 | #define int32_type_node c_global_trees[CTI_INT32_TYPE] | |
329 | #define int64_type_node c_global_trees[CTI_INT64_TYPE] | |
330 | #define uint8_type_node c_global_trees[CTI_UINT8_TYPE] | |
331 | #define uint16_type_node c_global_trees[CTI_UINT16_TYPE] | |
332 | #define c_uint32_type_node c_global_trees[CTI_UINT32_TYPE] | |
333 | #define c_uint64_type_node c_global_trees[CTI_UINT64_TYPE] | |
334 | #define int_least8_type_node c_global_trees[CTI_INT_LEAST8_TYPE] | |
335 | #define int_least16_type_node c_global_trees[CTI_INT_LEAST16_TYPE] | |
336 | #define int_least32_type_node c_global_trees[CTI_INT_LEAST32_TYPE] | |
337 | #define int_least64_type_node c_global_trees[CTI_INT_LEAST64_TYPE] | |
338 | #define uint_least8_type_node c_global_trees[CTI_UINT_LEAST8_TYPE] | |
339 | #define uint_least16_type_node c_global_trees[CTI_UINT_LEAST16_TYPE] | |
340 | #define uint_least32_type_node c_global_trees[CTI_UINT_LEAST32_TYPE] | |
341 | #define uint_least64_type_node c_global_trees[CTI_UINT_LEAST64_TYPE] | |
342 | #define int_fast8_type_node c_global_trees[CTI_INT_FAST8_TYPE] | |
343 | #define int_fast16_type_node c_global_trees[CTI_INT_FAST16_TYPE] | |
344 | #define int_fast32_type_node c_global_trees[CTI_INT_FAST32_TYPE] | |
345 | #define int_fast64_type_node c_global_trees[CTI_INT_FAST64_TYPE] | |
346 | #define uint_fast8_type_node c_global_trees[CTI_UINT_FAST8_TYPE] | |
347 | #define uint_fast16_type_node c_global_trees[CTI_UINT_FAST16_TYPE] | |
348 | #define uint_fast32_type_node c_global_trees[CTI_UINT_FAST32_TYPE] | |
349 | #define uint_fast64_type_node c_global_trees[CTI_UINT_FAST64_TYPE] | |
350 | #define intptr_type_node c_global_trees[CTI_INTPTR_TYPE] | |
351 | #define uintptr_type_node c_global_trees[CTI_UINTPTR_TYPE] | |
352 | ||
de7df9eb JM |
353 | #define truthvalue_type_node c_global_trees[CTI_TRUTHVALUE_TYPE] |
354 | #define truthvalue_true_node c_global_trees[CTI_TRUTHVALUE_TRUE] | |
355 | #define truthvalue_false_node c_global_trees[CTI_TRUTHVALUE_FALSE] | |
19552aa5 | 356 | |
7f4edbcb | 357 | #define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE] |
b6baa67d KVH |
358 | #define char16_array_type_node c_global_trees[CTI_CHAR16_ARRAY_TYPE] |
359 | #define char32_array_type_node c_global_trees[CTI_CHAR32_ARRAY_TYPE] | |
7f4edbcb BS |
360 | #define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE] |
361 | #define int_array_type_node c_global_trees[CTI_INT_ARRAY_TYPE] | |
362 | #define string_type_node c_global_trees[CTI_STRING_TYPE] | |
363 | #define const_string_type_node c_global_trees[CTI_CONST_STRING_TYPE] | |
364 | ||
365 | #define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE] | |
7f4edbcb | 366 | |
0ba8a114 NS |
367 | #define function_name_decl_node c_global_trees[CTI_FUNCTION_NAME_DECL] |
368 | #define pretty_function_name_decl_node c_global_trees[CTI_PRETTY_FUNCTION_NAME_DECL] | |
369 | #define c99_function_name_decl_node c_global_trees[CTI_C99_FUNCTION_NAME_DECL] | |
370 | #define saved_function_name_decls c_global_trees[CTI_SAVED_FUNCTION_NAME_DECLS] | |
63ad61ed | 371 | |
ae499cce MM |
372 | /* A node for `((void) 0)'. */ |
373 | #define void_zero_node c_global_trees[CTI_VOID_ZERO] | |
374 | ||
b2f97e4a MM |
375 | /* The node for C++ `__null'. */ |
376 | #define null_node c_global_trees[CTI_NULL] | |
377 | ||
e2500fed | 378 | extern GTY(()) tree c_global_trees[CTI_MAX]; |
ab76ca54 | 379 | |
e0a21ab9 KH |
380 | /* In a RECORD_TYPE, a sorted array of the fields of the type, not a |
381 | tree for size reasons. */ | |
a9429e29 | 382 | struct GTY((variable_size)) sorted_fields_type { |
d07605f5 AP |
383 | int len; |
384 | tree GTY((length ("%h.len"))) elts[1]; | |
385 | }; | |
386 | ||
8f17b5c5 MM |
387 | /* Mark which labels are explicitly declared. |
388 | These may be shadowed, and may be referenced from nested functions. */ | |
389 | #define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label) | |
390 | ||
ab76ca54 MM |
391 | typedef enum c_language_kind |
392 | { | |
37fa72e9 NB |
393 | clk_c = 0, /* C90, C94 or C99 */ |
394 | clk_objc = 1, /* clk_c with ObjC features. */ | |
395 | clk_cxx = 2, /* ANSI/ISO C++ */ | |
396 | clk_objcxx = 3 /* clk_cxx with ObjC features. */ | |
21c7361e | 397 | } |
ab76ca54 MM |
398 | c_language_kind; |
399 | ||
37fa72e9 NB |
400 | /* To test for a specific language use c_language, defined by each |
401 | front end. For "ObjC features" or "not C++" use the macros. */ | |
402 | extern c_language_kind c_language; | |
403 | ||
15a15e8d RH |
404 | #define c_dialect_cxx() ((c_language & clk_cxx) != 0) |
405 | #define c_dialect_objc() ((c_language & clk_objc) != 0) | |
37fa72e9 | 406 | |
dd865ef6 SZ |
407 | /* The various name of operator that appears in error messages. */ |
408 | typedef enum ref_operator { | |
409 | /* NULL */ | |
410 | RO_NULL, | |
411 | /* array indexing */ | |
412 | RO_ARRAY_INDEXING, | |
413 | /* unary * */ | |
414 | RO_UNARY_STAR, | |
415 | /* -> */ | |
416 | RO_ARROW, | |
417 | /* implicit conversion */ | |
418 | RO_IMPLICIT_CONVERSION | |
419 | } ref_operator; | |
420 | ||
ae499cce MM |
421 | /* Information about a statement tree. */ |
422 | ||
d1b38208 | 423 | struct GTY(()) stmt_tree_s { |
35fd3193 | 424 | /* The current statement list being collected. */ |
325c3691 RH |
425 | tree x_cur_stmt_list; |
426 | ||
da7d8304 | 427 | /* In C++, Nonzero if we should treat statements as full |
ae499cce MM |
428 | expressions. In particular, this variable is no-zero if at the |
429 | end of a statement we should destroy any temporaries created | |
430 | during that statement. Similarly, if, at the end of a block, we | |
431 | should destroy any local variables in this block. Normally, this | |
da7d8304 | 432 | variable is nonzero, since those are the normal semantics of |
ae499cce MM |
433 | C++. |
434 | ||
435 | However, in order to represent aggregate initialization code as | |
436 | tree structure, we use statement-expressions. The statements | |
437 | within the statement expression should not result in cleanups | |
21c7361e | 438 | being run until the entire enclosing statement is complete. |
ae499cce MM |
439 | |
440 | This flag has no effect in C. */ | |
21c7361e | 441 | int stmts_are_full_exprs_p; |
ae499cce MM |
442 | }; |
443 | ||
444 | typedef struct stmt_tree_s *stmt_tree; | |
445 | ||
446 | /* Global state pertinent to the current function. Some C dialects | |
447 | extend this structure with additional fields. */ | |
448 | ||
d1b38208 | 449 | struct GTY(()) c_language_function { |
ae499cce MM |
450 | /* While we are parsing the function, this contains information |
451 | about the statement-tree that we are building. */ | |
452 | struct stmt_tree_s x_stmt_tree; | |
453 | }; | |
454 | ||
35fd3193 | 455 | /* When building a statement-tree, this is the current statement list |
325c3691 | 456 | being collected. It's TREE_CHAIN is a back-pointer to the previous |
35fd3193 | 457 | statement list. */ |
ae499cce | 458 | |
325c3691 | 459 | #define cur_stmt_list (current_stmt_tree ()->x_cur_stmt_list) |
8f17b5c5 MM |
460 | |
461 | /* Language-specific hooks. */ | |
462 | ||
4684cd27 MM |
463 | /* If non-NULL, this function is called after a precompile header file |
464 | is loaded. */ | |
465 | extern void (*lang_post_pch_load) (void); | |
466 | ||
f75fbaf7 ZW |
467 | extern void push_file_scope (void); |
468 | extern void pop_file_scope (void); | |
35b1a6fa | 469 | extern stmt_tree current_stmt_tree (void); |
325c3691 | 470 | extern tree push_stmt_list (void); |
325c3691 | 471 | extern tree pop_stmt_list (tree); |
35b1a6fa | 472 | extern tree add_stmt (tree); |
325c3691 | 473 | extern void push_cleanup (tree, tree, bool); |
953ff289 DN |
474 | extern tree pushdecl_top_level (tree); |
475 | extern tree pushdecl (tree); | |
32e8bb8e | 476 | extern tree build_modify_expr (location_t, tree, tree, enum tree_code, |
c2255bc4 | 477 | location_t, tree, tree); |
dd865ef6 | 478 | extern tree build_indirect_ref (location_t, tree, ref_operator); |
35b1a6fa | 479 | |
3c79fa86 | 480 | extern int c_expand_decl (tree); |
c1e14513 | 481 | |
d07605f5 | 482 | extern int field_decl_cmp (const void *, const void *); |
c22cacf3 MS |
483 | extern void resort_sorted_fields (void *, void *, gt_pointer_operator, |
484 | void *); | |
58f9752a | 485 | extern bool has_c_linkage (const_tree decl); |
17211ab5 | 486 | \f |
4078b403 NB |
487 | /* Switches common to the C front ends. */ |
488 | ||
63973df3 NB |
489 | /* Nonzero means don't output line number information. */ |
490 | ||
491 | extern char flag_no_line_commands; | |
492 | ||
493 | /* Nonzero causes -E output not to be done, but directives such as | |
494 | #define that have side effects are still obeyed. */ | |
495 | ||
496 | extern char flag_no_output; | |
497 | ||
93d45d9e JM |
498 | /* Nonzero means dump macros in some fashion; contains the 'D', 'M', |
499 | 'N' or 'U' of the command line switch. */ | |
63973df3 NB |
500 | |
501 | extern char flag_dump_macros; | |
502 | ||
503 | /* Nonzero means pass #include lines through to the output. */ | |
504 | ||
505 | extern char flag_dump_includes; | |
506 | ||
c0d578e6 GK |
507 | /* Nonzero means process PCH files while preprocessing. */ |
508 | ||
509 | extern bool flag_pch_preprocess; | |
510 | ||
17211ab5 GK |
511 | /* The file name to which we should write a precompiled header, or |
512 | NULL if no header will be written in this compile. */ | |
513 | ||
514 | extern const char *pch_file; | |
515 | ||
3df89291 NB |
516 | /* Nonzero if an ISO standard was selected. It rejects macros in the |
517 | user's namespace. */ | |
17211ab5 | 518 | |
3df89291 NB |
519 | extern int flag_iso; |
520 | ||
c22cacf3 | 521 | /* Warn about #pragma directives that are not recognized. */ |
4078b403 | 522 | |
c22cacf3 | 523 | extern int warn_unknown_pragmas; /* Tri state variable. */ |
4078b403 | 524 | |
4078b403 NB |
525 | /* Warn about format/argument anomalies in calls to formatted I/O functions |
526 | (*printf, *scanf, strftime, strfmon, etc.). */ | |
ab76ca54 MM |
527 | |
528 | extern int warn_format; | |
529 | ||
b34c7881 | 530 | |
4078b403 | 531 | /* C/ObjC language option variables. */ |
b34c7881 | 532 | |
2683ed8d | 533 | |
4078b403 NB |
534 | /* Nonzero means allow type mismatches in conditional expressions; |
535 | just make their values `void'. */ | |
74ff4629 | 536 | |
4078b403 | 537 | extern int flag_cond_mismatch; |
6c36d76b | 538 | |
eaf299c6 | 539 | /* Nonzero means enable C89 Amendment 1 features. */ |
b8458e3e JM |
540 | |
541 | extern int flag_isoc94; | |
542 | ||
2778d766 | 543 | /* Nonzero means use the ISO C99 (or C1X) dialect of C. */ |
ab76ca54 MM |
544 | |
545 | extern int flag_isoc99; | |
546 | ||
2778d766 JM |
547 | /* Nonzero means use the ISO C1X dialect of C. */ |
548 | ||
549 | extern int flag_isoc1x; | |
550 | ||
6614fd40 | 551 | /* Nonzero means that we have builtin functions, and main is an int. */ |
93e2382f JM |
552 | |
553 | extern int flag_hosted; | |
554 | ||
4078b403 NB |
555 | /* ObjC language option variables. */ |
556 | ||
557 | ||
4078b403 NB |
558 | /* Tells the compiler that this is a special run. Do not perform any |
559 | compiling, instead we are to test some platform dependent features | |
560 | and output a C header file with appropriate definitions. */ | |
561 | ||
562 | extern int print_struct_values; | |
563 | ||
564 | /* ???. Undocumented. */ | |
565 | ||
fd350d24 | 566 | extern const char *constant_string_class_name; |
4078b403 | 567 | |
4078b403 NB |
568 | |
569 | /* C++ language option variables. */ | |
570 | ||
571 | ||
4078b403 NB |
572 | /* Nonzero means generate separate instantiation control files and |
573 | juggle them at link time. */ | |
574 | ||
575 | extern int flag_use_repository; | |
576 | ||
c1ae8be5 SM |
577 | /* The supported C++ dialects. */ |
578 | ||
579 | enum cxx_dialect { | |
580 | /* C++98 */ | |
581 | cxx98, | |
582 | /* Experimental features that are likely to become part of | |
583 | C++0x. */ | |
584 | cxx0x | |
585 | }; | |
966541e3 | 586 | |
c1ae8be5 SM |
587 | /* The C++ dialect being used. C++98 is the default. */ |
588 | extern enum cxx_dialect cxx_dialect; | |
966541e3 | 589 | |
4078b403 NB |
590 | /* Maximum template instantiation depth. This limit is rather |
591 | arbitrary, but it exists to limit the time it takes to notice | |
592 | infinite template instantiations. */ | |
593 | ||
594 | extern int max_tinst_depth; | |
ab76ca54 | 595 | |
7d882b83 ILT |
596 | /* Nonzero means that we should not issue warnings about problems that |
597 | occur when the code is executed, because the code being processed | |
598 | is not expected to be executed. This is set during parsing. This | |
599 | is used for cases like sizeof() and "0 ? a : b". This is a count, | |
600 | not a bool, because unexecuted expressions can nest. */ | |
25587e40 | 601 | |
7d882b83 | 602 | extern int c_inhibit_evaluation_warnings; |
25587e40 | 603 | |
148e4216 JM |
604 | /* Whether lexing has been completed, so subsequent preprocessor |
605 | errors should use the compiler's input_location. */ | |
606 | ||
607 | extern bool done_lexing; | |
608 | ||
ab76ca54 MM |
609 | /* C types are partitioned into three subsets: object, function, and |
610 | incomplete types. */ | |
611 | #define C_TYPE_OBJECT_P(type) \ | |
612 | (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type)) | |
613 | ||
614 | #define C_TYPE_INCOMPLETE_P(type) \ | |
615 | (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type) == 0) | |
616 | ||
617 | #define C_TYPE_FUNCTION_P(type) \ | |
618 | (TREE_CODE (type) == FUNCTION_TYPE) | |
619 | ||
620 | /* For convenience we define a single macro to identify the class of | |
621 | object or incomplete types. */ | |
622 | #define C_TYPE_OBJECT_OR_INCOMPLETE_P(type) \ | |
623 | (!C_TYPE_FUNCTION_P (type)) | |
624 | ||
349ae713 NB |
625 | /* Attribute table common to the C front ends. */ |
626 | extern const struct attribute_spec c_common_attribute_table[]; | |
627 | extern const struct attribute_spec c_common_format_attribute_table[]; | |
628 | ||
0ba8a114 | 629 | /* Pointer to function to lazily generate the VAR_DECL for __FUNCTION__ etc. |
2ce07e2d NS |
630 | ID is the identifier to use, NAME is the string. |
631 | TYPE_DEP indicates whether it depends on type of the function or not | |
632 | (i.e. __PRETTY_FUNCTION__). */ | |
633 | ||
c2255bc4 | 634 | extern tree (*make_fname_decl) (location_t, tree, int); |
35b1a6fa | 635 | |
bffad7f1 | 636 | /* In c-decl.c and cp/tree.c. FIXME. */ |
3ef0694c | 637 | extern void c_register_addr_space (const char *str, addr_space_t as); |
bffad7f1 SB |
638 | |
639 | /* In c-common.c. */ | |
36c5e70a | 640 | extern const char *c_addr_space_name (addr_space_t as); |
35b1a6fa AJ |
641 | extern tree identifier_global_value (tree); |
642 | extern void record_builtin_type (enum rid, const char *, tree); | |
643 | extern tree build_void_list_node (void); | |
644 | extern void start_fname_decls (void); | |
645 | extern void finish_fname_decls (void); | |
646 | extern const char *fname_as_string (int); | |
3ba09659 | 647 | extern tree fname_decl (location_t, unsigned, tree); |
35b1a6fa | 648 | |
94a0dd7b | 649 | extern void check_function_arguments (tree, int, tree *, tree); |
35b1a6fa AJ |
650 | extern void check_function_arguments_recurse (void (*) |
651 | (void *, tree, | |
652 | unsigned HOST_WIDE_INT), | |
653 | void *, tree, | |
654 | unsigned HOST_WIDE_INT); | |
83322951 | 655 | extern bool check_builtin_function_arguments (tree, int, tree *); |
94a0dd7b | 656 | extern void check_function_format (tree, int, tree *); |
35b1a6fa AJ |
657 | extern void set_Wformat (int); |
658 | extern tree handle_format_attribute (tree *, tree, tree, int, bool *); | |
659 | extern tree handle_format_arg_attribute (tree *, tree, tree, int, bool *); | |
564a129d | 660 | extern bool attribute_takes_identifier_p (const_tree); |
3734d960 | 661 | extern int c_common_handle_option (size_t code, const char *arg, int value, int kind); |
35b1a6fa AJ |
662 | extern tree c_common_type_for_mode (enum machine_mode, int); |
663 | extern tree c_common_type_for_size (unsigned int, int); | |
ab22c1fa CF |
664 | extern tree c_common_fixed_point_type_for_size (unsigned int, unsigned int, |
665 | int, int); | |
12753674 | 666 | extern tree c_common_unsigned_type (tree); |
35b1a6fa AJ |
667 | extern tree c_common_signed_type (tree); |
668 | extern tree c_common_signed_or_unsigned_type (int, tree); | |
38a4afee | 669 | extern tree c_build_bitfield_integer_type (unsigned HOST_WIDE_INT, int); |
58f9752a | 670 | extern bool decl_with_nonnull_addr_p (const_tree); |
928c19bb JM |
671 | extern tree c_fully_fold (tree, bool, bool *); |
672 | extern tree decl_constant_value_for_optimization (tree); | |
e5a94231 | 673 | extern tree c_wrap_maybe_const (tree, bool); |
928c19bb | 674 | extern tree c_save_expr (tree); |
ba47d38d | 675 | extern tree c_common_truthvalue_conversion (location_t, tree); |
35b1a6fa | 676 | extern void c_apply_type_quals_to_decl (int, tree); |
c2255bc4 AH |
677 | extern tree c_sizeof_or_alignof_type (location_t, tree, bool, int); |
678 | extern tree c_alignof_expr (location_t, tree); | |
7f4edbcb BS |
679 | /* Print an error message for invalid operands to arith operation CODE. |
680 | NOP_EXPR is used as a special case (see truthvalue_conversion). */ | |
ba47d38d | 681 | extern void binary_op_error (location_t, enum tree_code, tree, tree); |
35b1a6fa | 682 | extern tree fix_string_type (tree); |
35b1a6fa | 683 | extern void constant_expression_warning (tree); |
393eda6a | 684 | extern void constant_expression_error (tree); |
79bedddc | 685 | extern bool strict_aliasing_warning (tree, tree, tree); |
07231d4f | 686 | extern void warnings_for_convert_and_check (tree, tree, tree); |
35b1a6fa | 687 | extern tree convert_and_check (tree, tree); |
c2255bc4 | 688 | extern void overflow_warning (location_t, tree); |
a243fb4a | 689 | extern void warn_logical_operator (location_t, enum tree_code, tree, |
ca409efd | 690 | enum tree_code, tree, enum tree_code, tree); |
a1e45ff0 | 691 | extern void check_main_parameter_types (tree decl); |
b2ca3702 | 692 | extern bool c_determine_visibility (tree); |
5bed876a | 693 | extern bool same_scalar_type_ignoring_signedness (tree, tree); |
6ec637a4 JJ |
694 | extern void mark_valid_location_for_stdc_pragma (bool); |
695 | extern bool valid_location_for_stdc_pragma_p (void); | |
696 | extern void set_float_const_decimal64 (void); | |
697 | extern void clear_float_const_decimal64 (void); | |
698 | extern bool float_const_decimal64_p (void); | |
ab76ca54 | 699 | |
c2255bc4 AH |
700 | #define c_sizeof(LOC, T) c_sizeof_or_alignof_type (LOC, T, true, 1) |
701 | #define c_alignof(LOC, T) c_sizeof_or_alignof_type (LOC, T, false, 1) | |
7f4edbcb | 702 | |
6715192c MLI |
703 | /* Subroutine of build_binary_op, used for certain operations. */ |
704 | extern tree shorten_binary_op (tree result_type, tree op0, tree op1, bool bitwise); | |
705 | ||
7f4edbcb BS |
706 | /* Subroutine of build_binary_op, used for comparison operations. |
707 | See if the operands have both been converted from subword integer types | |
708 | and, if so, perhaps change them both back to their original type. */ | |
35b1a6fa | 709 | extern tree shorten_compare (tree *, tree *, tree *, enum tree_code *); |
7f4edbcb | 710 | |
db3927fb | 711 | extern tree pointer_int_sum (location_t, enum tree_code, tree, tree); |
50e60bc3 ZW |
712 | |
713 | /* Add qualifiers to a type, in the fashion for C. */ | |
35b1a6fa | 714 | extern tree c_build_qualified_type (tree, int); |
50e60bc3 | 715 | |
7f4edbcb BS |
716 | /* Build tree nodes and builtin functions common to both C and C++ language |
717 | frontends. */ | |
35b1a6fa | 718 | extern void c_common_nodes_and_builtins (void); |
d3707adb | 719 | |
35b1a6fa | 720 | extern void disable_builtin_function (const char *); |
7d14c755 | 721 | |
3b2db49f MM |
722 | extern void set_compound_literal_name (tree decl); |
723 | ||
c2255bc4 | 724 | extern tree build_va_arg (location_t, tree, tree); |
7e8176d7 | 725 | |
7a9bf9a4 JM |
726 | struct diagnostic_context; |
727 | ||
728 | extern unsigned int c_common_option_lang_mask (void); | |
729 | extern void c_common_initialize_diagnostics (struct diagnostic_context *); | |
730 | extern bool c_common_complain_wrong_lang_p (const struct cl_option *); | |
731 | extern void c_common_init_options (unsigned int, struct cl_decoded_option *); | |
35b1a6fa AJ |
732 | extern bool c_common_post_options (const char **); |
733 | extern bool c_common_init (void); | |
734 | extern void c_common_finish (void); | |
735 | extern void c_common_parse_file (int); | |
4862826d | 736 | extern alias_set_type c_common_get_alias_set (tree); |
9649812a | 737 | extern void c_register_builtin_type (tree, const char*); |
58f9752a KG |
738 | extern bool c_promoting_integer_type_p (const_tree); |
739 | extern int self_promoting_args_p (const_tree); | |
12ea3302 | 740 | extern tree strip_pointer_operator (tree); |
ba992967 | 741 | extern tree strip_pointer_or_array_types (tree); |
c5ff069d | 742 | extern HOST_WIDE_INT c_common_to_target_charset (HOST_WIDE_INT); |
d7e7759d | 743 | |
d1bd0ded GK |
744 | /* This is the basic parsing function. */ |
745 | extern void c_parse_file (void); | |
746 | /* This is misnamed, it actually performs end-of-compilation processing. */ | |
747 | extern void finish_file (void); | |
748 | ||
d166d4c3 | 749 | extern void warn_for_omitted_condop (location_t, tree); |
c5ff069d | 750 | |
ae499cce MM |
751 | /* These macros provide convenient access to the various _STMT nodes. */ |
752 | ||
325c3691 RH |
753 | /* Nonzero if a given STATEMENT_LIST represents the outermost binding |
754 | if a statement expression. */ | |
755 | #define STATEMENT_LIST_STMT_EXPR(NODE) \ | |
756 | TREE_LANG_FLAG_1 (STATEMENT_LIST_CHECK (NODE)) | |
174283a3 RH |
757 | |
758 | /* Nonzero if a label has been added to the statement list. */ | |
759 | #define STATEMENT_LIST_HAS_LABEL(NODE) \ | |
760 | TREE_LANG_FLAG_3 (STATEMENT_LIST_CHECK (NODE)) | |
325c3691 | 761 | |
928c19bb JM |
762 | /* C_MAYBE_CONST_EXPR accessors. */ |
763 | #define C_MAYBE_CONST_EXPR_PRE(NODE) \ | |
764 | TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 0) | |
765 | #define C_MAYBE_CONST_EXPR_EXPR(NODE) \ | |
766 | TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 1) | |
767 | #define C_MAYBE_CONST_EXPR_INT_OPERANDS(NODE) \ | |
768 | TREE_LANG_FLAG_0 (C_MAYBE_CONST_EXPR_CHECK (NODE)) | |
769 | #define C_MAYBE_CONST_EXPR_NON_CONST(NODE) \ | |
770 | TREE_LANG_FLAG_1 (C_MAYBE_CONST_EXPR_CHECK (NODE)) | |
771 | #define EXPR_INT_CONST_OPERANDS(EXPR) \ | |
772 | (INTEGRAL_TYPE_P (TREE_TYPE (EXPR)) \ | |
773 | && (TREE_CODE (EXPR) == INTEGER_CST \ | |
774 | || (TREE_CODE (EXPR) == C_MAYBE_CONST_EXPR \ | |
775 | && C_MAYBE_CONST_EXPR_INT_OPERANDS (EXPR)))) | |
776 | ||
0a7394bc MM |
777 | /* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */ |
778 | #define DECL_C_BIT_FIELD(NODE) \ | |
779 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1) | |
780 | #define SET_DECL_C_BIT_FIELD(NODE) \ | |
781 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 1) | |
782 | #define CLEAR_DECL_C_BIT_FIELD(NODE) \ | |
783 | (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0) | |
784 | ||
c2255bc4 AH |
785 | extern tree do_case (location_t, tree, tree); |
786 | extern tree build_stmt (location_t, enum tree_code, ...); | |
787 | extern tree build_case_label (location_t, tree, tree, tree); | |
f2c5f623 | 788 | |
ab76ca54 MM |
789 | /* These functions must be defined by each front-end which implements |
790 | a variant of the C language. They are used in c-common.c. */ | |
791 | ||
c9f9eb5d | 792 | extern tree build_unary_op (location_t, enum tree_code, tree, int); |
ba47d38d | 793 | extern tree build_binary_op (location_t, enum tree_code, tree, tree, int); |
522ddfa2 | 794 | extern tree perform_integral_promotions (tree); |
ab76ca54 | 795 | |
d593cb3d MS |
796 | /* These functions must be defined by each front-end which implements |
797 | a variant of the C language. They are used by port files. */ | |
798 | ||
799 | extern tree default_conversion (tree); | |
800 | ||
ab76ca54 MM |
801 | /* Given two integer or real types, return the type for their sum. |
802 | Given two compatible ANSI C types, returns the merged type. */ | |
803 | ||
35b1a6fa | 804 | extern tree common_type (tree, tree); |
44835fdd | 805 | |
35b1a6fa | 806 | extern tree decl_constant_value (tree); |
56cb9733 | 807 | |
19552aa5 | 808 | /* Handle increment and decrement of boolean types. */ |
35b1a6fa | 809 | extern tree boolean_increment (enum tree_code, tree); |
19552aa5 | 810 | |
35b1a6fa | 811 | extern int case_compare (splay_tree_key, splay_tree_key); |
8f17b5c5 | 812 | |
c2255bc4 | 813 | extern tree c_add_case_label (location_t, splay_tree, tree, tree, tree, tree); |
8f17b5c5 | 814 | |
fbc315db | 815 | extern void c_do_switch_warnings (splay_tree, location_t, tree, tree); |
6de9cd9a | 816 | |
c2255bc4 | 817 | extern tree build_function_call (location_t, tree, tree); |
c70eaeaf | 818 | |
c2255bc4 AH |
819 | extern tree build_function_call_vec (location_t, tree, |
820 | VEC(tree,gc) *, VEC(tree,gc) *); | |
bbbbb16a | 821 | |
c2255bc4 | 822 | extern tree resolve_overloaded_builtin (location_t, tree, VEC(tree,gc) *); |
48ae6c13 | 823 | |
6a3799eb | 824 | extern tree finish_label_address_expr (tree, location_t); |
15b732b2 NB |
825 | |
826 | /* Same function prototype, but the C and C++ front ends have | |
827 | different implementations. Used in c-common.c. */ | |
35b1a6fa | 828 | extern tree lookup_label (tree); |
10e6657a | 829 | extern tree lookup_name (tree); |
1e4ae551 | 830 | extern bool lvalue_p (const_tree); |
15b732b2 | 831 | |
f83c7f63 | 832 | extern bool vector_targets_convertible_p (const_tree t1, const_tree t2); |
58f9752a | 833 | extern bool vector_types_convertible_p (const_tree t1, const_tree t2, bool emit_lax_note); |
cc27e657 | 834 | |
0fab64a3 | 835 | extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *); |
8f17b5c5 | 836 | |
35b1a6fa | 837 | extern void init_c_lex (void); |
81a75f0f | 838 | |
35b1a6fa | 839 | extern void c_cpp_builtins (cpp_reader *); |
ab442df7 | 840 | extern void c_cpp_builtins_optimize_pragma (cpp_reader *, tree, tree); |
59cc9210 SB |
841 | extern bool c_cpp_error (cpp_reader *, int, int, location_t, unsigned int, |
842 | const char *, va_list *) | |
843 | ATTRIBUTE_GCC_DIAG(6,0); | |
76c3e73e | 844 | |
731e8b38 MM |
845 | /* Positive if an implicit `extern "C"' scope has just been entered; |
846 | negative if such a scope has just been exited. */ | |
7876228d | 847 | extern GTY(()) int pending_lang_change; |
731e8b38 | 848 | |
0e5921e8 ZW |
849 | /* Information recorded about each file examined during compilation. */ |
850 | ||
851 | struct c_fileinfo | |
852 | { | |
853 | int time; /* Time spent in the file. */ | |
5d709b00 ZW |
854 | |
855 | /* Flags used only by C++. | |
856 | INTERFACE_ONLY nonzero means that we are in an "interface" section | |
857 | of the compiler. INTERFACE_UNKNOWN nonzero means we cannot trust | |
858 | the value of INTERFACE_ONLY. If INTERFACE_UNKNOWN is zero and | |
859 | INTERFACE_ONLY is zero, it means that we are responsible for | |
860 | exporting definitions that others might need. */ | |
861 | short interface_only; | |
0e5921e8 ZW |
862 | short interface_unknown; |
863 | }; | |
864 | ||
35b1a6fa AJ |
865 | struct c_fileinfo *get_fileinfo (const char *); |
866 | extern void dump_time_statistics (void); | |
867 | ||
868 | extern bool c_dump_tree (void *, tree); | |
869 | ||
3a5b9284 RH |
870 | extern void verify_sequence_points (tree); |
871 | ||
6d4d7b0e | 872 | extern tree fold_offsetof (tree, tree); |
ee8a6a3e | 873 | |
5ae9ba3e | 874 | /* Places where an lvalue, or modifiable lvalue, may be required. |
37dc0d8d | 875 | Used to select diagnostic messages in lvalue_error and |
5ae9ba3e MM |
876 | readonly_error. */ |
877 | enum lvalue_use { | |
878 | lv_assign, | |
879 | lv_increment, | |
880 | lv_decrement, | |
881 | lv_addressof, | |
882 | lv_asm | |
883 | }; | |
884 | ||
37dc0d8d | 885 | extern void lvalue_error (enum lvalue_use); |
5ae9ba3e | 886 | |
aab038d5 RH |
887 | extern int complete_array_type (tree *, tree, bool); |
888 | ||
48ae6c13 RH |
889 | extern tree builtin_type_for_size (int, bool); |
890 | ||
ff6b6641 | 891 | extern void warn_array_subscript_with_type_char (tree); |
100d537d MLI |
892 | extern void warn_about_parentheses (enum tree_code, |
893 | enum tree_code, tree, | |
894 | enum tree_code, tree); | |
c616e51b | 895 | extern void warn_for_unused_label (tree label); |
c9f9eb5d | 896 | extern void warn_for_div_by_zero (location_t, tree divisor); |
ba47d38d | 897 | extern void warn_for_sign_compare (location_t, |
b8698a0f L |
898 | tree orig_op0, tree orig_op1, |
899 | tree op0, tree op1, | |
900 | tree result_type, | |
2d12797c | 901 | enum tree_code resultcode); |
d0940d56 | 902 | extern void set_underlying_type (tree x); |
c166b898 ILT |
903 | extern VEC(tree,gc) *make_tree_vector (void); |
904 | extern void release_tree_vector (VEC(tree,gc) *); | |
905 | extern VEC(tree,gc) *make_tree_vector_single (tree); | |
906 | extern VEC(tree,gc) *make_tree_vector_copy (const VEC(tree,gc) *); | |
2a67bec2 | 907 | |
7c34ced1 | 908 | /* In c-gimplify.c */ |
6de9cd9a | 909 | extern void c_genericize (tree); |
726a989a | 910 | extern int c_gimplify_expr (tree *, gimple_seq *, gimple_seq *); |
c2255bc4 | 911 | extern tree c_build_bind_expr (location_t, tree, tree); |
6de9cd9a | 912 | |
c0d578e6 | 913 | /* In c-pch.c */ |
35b1a6fa AJ |
914 | extern void pch_init (void); |
915 | extern int c_common_valid_pch (cpp_reader *pfile, const char *name, int fd); | |
916 | extern void c_common_read_pch (cpp_reader *pfile, const char *name, int fd, | |
917 | const char *orig); | |
918 | extern void c_common_write_pch (void); | |
18c81520 | 919 | extern void c_common_no_more_pch (void); |
bc4071dd | 920 | extern void c_common_pch_pragma (cpp_reader *pfile, const char *); |
3fd30b88 GK |
921 | extern void c_common_print_pch_checksum (FILE *f); |
922 | ||
923 | /* In *-checksum.c */ | |
924 | extern const unsigned char executable_checksum[16]; | |
c0d578e6 | 925 | |
ab442df7 MM |
926 | /* In c-cppbuiltin.c */ |
927 | extern void builtin_define_std (const char *macro); | |
35b1a6fa AJ |
928 | extern void builtin_define_with_value (const char *, const char *, int); |
929 | extern void c_stddef_cpp_builtins (void); | |
930 | extern void fe_file_change (const struct line_map *); | |
cfc93532 | 931 | extern void c_parse_error (const char *, enum cpp_ttype, tree, unsigned char); |
9d10c9a9 | 932 | |
e5a002e3 ZL |
933 | /* Objective-C / Objective-C++ entry points. */ |
934 | ||
935 | /* The following ObjC/ObjC++ functions are called by the C and/or C++ | |
936 | front-ends; they all must have corresponding stubs in stub-objc.c. */ | |
bc095846 | 937 | extern tree objc_is_class_name (tree); |
264fa2db ZL |
938 | extern tree objc_is_object_ptr (tree); |
939 | extern void objc_check_decl (tree); | |
e5a002e3 | 940 | extern int objc_is_reserved_word (tree); |
58393038 ZL |
941 | extern bool objc_compare_types (tree, tree, int, tree); |
942 | extern void objc_volatilize_decl (tree); | |
943 | extern bool objc_type_quals_match (tree, tree); | |
6e955430 | 944 | extern tree objc_rewrite_function_call (tree, tree); |
264fa2db | 945 | extern tree objc_message_selector (void); |
16b34ad6 | 946 | extern tree objc_lookup_ivar (tree, tree); |
325c3691 | 947 | extern void objc_clear_super_receiver (void); |
7a3ea201 | 948 | extern int objc_is_public (tree, tree); |
a45bcfb2 ZL |
949 | extern tree objc_is_id (tree); |
950 | extern void objc_declare_alias (tree, tree); | |
951 | extern void objc_declare_class (tree); | |
952 | extern void objc_declare_protocols (tree); | |
953 | extern tree objc_build_message_expr (tree); | |
954 | extern tree objc_finish_message_expr (tree, tree, tree); | |
c2255bc4 | 955 | extern tree objc_build_selector_expr (location_t, tree); |
a45bcfb2 ZL |
956 | extern tree objc_build_protocol_expr (tree); |
957 | extern tree objc_build_encode_expr (tree); | |
958 | extern tree objc_build_string_object (tree); | |
959 | extern tree objc_get_protocol_qualified_type (tree, tree); | |
960 | extern tree objc_get_class_reference (tree); | |
961 | extern tree objc_get_class_ivars (tree); | |
962 | extern void objc_start_class_interface (tree, tree, tree); | |
963 | extern void objc_start_category_interface (tree, tree, tree); | |
964 | extern void objc_start_protocol (tree, tree); | |
965 | extern void objc_continue_interface (void); | |
966 | extern void objc_finish_interface (void); | |
967 | extern void objc_start_class_implementation (tree, tree); | |
968 | extern void objc_start_category_implementation (tree, tree); | |
969 | extern void objc_continue_implementation (void); | |
970 | extern void objc_finish_implementation (void); | |
971 | extern void objc_set_visibility (int); | |
972 | extern void objc_set_method_type (enum tree_code); | |
dbb74365 | 973 | extern tree objc_build_method_signature (tree, tree, tree, bool); |
a45bcfb2 ZL |
974 | extern void objc_add_method_declaration (tree); |
975 | extern void objc_start_method_definition (tree); | |
976 | extern void objc_finish_method_definition (tree); | |
977 | extern void objc_add_instance_variable (tree); | |
978 | extern tree objc_build_keyword_decl (tree, tree, tree); | |
c2255bc4 | 979 | extern tree objc_build_throw_stmt (location_t, tree); |
a45bcfb2 | 980 | extern void objc_begin_try_stmt (location_t, tree); |
6e955430 | 981 | extern tree objc_finish_try_stmt (void); |
a45bcfb2 ZL |
982 | extern void objc_begin_catch_clause (tree); |
983 | extern void objc_finish_catch_clause (void); | |
984 | extern void objc_build_finally_clause (location_t, tree); | |
6e955430 | 985 | extern tree objc_build_synchronized (location_t, tree, tree); |
a45bcfb2 ZL |
986 | extern int objc_static_init_needed_p (void); |
987 | extern tree objc_generate_static_init_call (tree); | |
6e955430 | 988 | extern tree objc_generate_write_barrier (tree, enum tree_code, tree); |
264fa2db | 989 | |
e5a002e3 ZL |
990 | /* The following are provided by the C and C++ front-ends, and called by |
991 | ObjC/ObjC++. */ | |
bc095846 | 992 | extern void *objc_get_current_scope (void); |
e5a002e3 ZL |
993 | extern void objc_mark_locals_volatile (void *); |
994 | ||
9d10c9a9 | 995 | /* In c-ppoutput.c */ |
35b1a6fa AJ |
996 | extern void init_pp_output (FILE *); |
997 | extern void preprocess_file (cpp_reader *); | |
998 | extern void pp_file_change (const struct line_map *); | |
8e9ea4d7 | 999 | extern void pp_dir_change (cpp_reader *, const char *); |
104f8784 | 1000 | extern bool check_missing_format_attribute (tree, tree); |
17211ab5 | 1001 | |
953ff289 | 1002 | /* In c-omp.c */ |
c2255bc4 AH |
1003 | extern tree c_finish_omp_master (location_t, tree); |
1004 | extern tree c_finish_omp_critical (location_t, tree, tree); | |
1005 | extern tree c_finish_omp_ordered (location_t, tree); | |
1006 | extern void c_finish_omp_barrier (location_t); | |
1007 | extern tree c_finish_omp_atomic (location_t, enum tree_code, tree, tree); | |
1008 | extern void c_finish_omp_flush (location_t); | |
1009 | extern void c_finish_omp_taskwait (location_t); | |
953ff289 | 1010 | extern tree c_finish_omp_for (location_t, tree, tree, tree, tree, tree, tree); |
c2255bc4 | 1011 | extern void c_split_parallel_clauses (location_t, tree, tree *, tree *); |
953ff289 DN |
1012 | extern enum omp_clause_default_kind c_omp_predetermined_sharing (tree); |
1013 | ||
1014 | /* Not in c-omp.c; provided by the front end. */ | |
1015 | extern bool c_omp_sharing_predetermined (tree); | |
1016 | extern tree c_omp_remap_decl (tree, bool); | |
b646ba3f | 1017 | extern void record_types_used_by_current_var_decl (tree); |
953ff289 | 1018 | |
88657302 | 1019 | #endif /* ! GCC_C_COMMON_H */ |