Mercurial > hg > CbC > CbC_gcc
annotate gcc/c-common.h @ 55:77e2b8dfacca gcc-4.4.5
update it from 4.4.3 to 4.5.0
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Fri, 12 Feb 2010 23:39:51 +0900 |
| parents | 855418dad1a3 |
| children | 326d9e06c2e3 b7f97abdc517 |
| rev | line source |
|---|---|
| 0 | 1 /* Definitions for c-common.c. |
| 2 Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998, | |
|
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3 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009 |
| 0 | 4 Free Software Foundation, Inc. |
| 5 | |
| 6 This file is part of GCC. | |
| 7 | |
| 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 | |
| 10 Software Foundation; either version 3, or (at your option) any later | |
| 11 version. | |
| 12 | |
| 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. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with GCC; see the file COPYING3. If not see | |
| 20 <http://www.gnu.org/licenses/>. */ | |
| 21 | |
| 22 #ifndef GCC_C_COMMON_H | |
| 23 #define GCC_C_COMMON_H | |
| 24 | |
| 25 #include "splay-tree.h" | |
| 26 #include "cpplib.h" | |
| 27 #include "ggc.h" | |
| 28 | |
| 29 /* Usage of TREE_LANG_FLAG_?: | |
| 30 0: TREE_NEGATED_INT (in INTEGER_CST). | |
| 31 IDENTIFIER_MARKED (used by search routines). | |
| 32 DECL_PRETTY_FUNCTION_P (in VAR_DECL) | |
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33 C_MAYBE_CONST_EXPR_INT_OPERANDS (in C_MAYBE_CONST_EXPR, for C) |
| 0 | 34 1: C_DECLARED_LABEL_FLAG (in LABEL_DECL) |
| 35 STATEMENT_LIST_STMT_EXPR (in STATEMENT_LIST) | |
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36 C_MAYBE_CONST_EXPR_NON_CONST (in C_MAYBE_CONST_EXPR, for C) |
| 0 | 37 2: unused |
| 38 3: STATEMENT_LIST_HAS_LABEL (in STATEMENT_LIST) | |
| 39 4: unused | |
| 40 */ | |
| 41 | |
| 42 /* Reserved identifiers. This is the union of all the keywords for C, | |
| 43 C++, and Objective-C. All the type modifiers have to be in one | |
| 44 block at the beginning, because they are used as mask bits. There | |
| 45 are 27 type modifiers; if we add many more we will have to redesign | |
| 46 the mask mechanism. */ | |
| 47 | |
| 48 enum rid | |
| 49 { | |
| 50 /* Modifiers: */ | |
| 51 /* C, in empirical order of frequency. */ | |
| 52 RID_STATIC = 0, | |
| 53 RID_UNSIGNED, RID_LONG, RID_CONST, RID_EXTERN, | |
| 54 RID_REGISTER, RID_TYPEDEF, RID_SHORT, RID_INLINE, | |
| 55 RID_VOLATILE, RID_SIGNED, RID_AUTO, RID_RESTRICT, | |
| 56 | |
| 57 /* C extensions */ | |
| 58 RID_COMPLEX, RID_THREAD, RID_SAT, | |
| 59 | |
| 60 /* C++ */ | |
| 61 RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE, | |
| 62 | |
| 63 /* ObjC */ | |
| 64 RID_IN, RID_OUT, RID_INOUT, RID_BYCOPY, RID_BYREF, RID_ONEWAY, | |
| 65 | |
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66 /* C (reserved and imaginary types not implemented, so any use is a |
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67 syntax error) */ |
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68 RID_IMAGINARY, |
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69 |
| 0 | 70 /* C */ |
| 71 RID_INT, RID_CHAR, RID_FLOAT, RID_DOUBLE, RID_VOID, | |
| 72 RID_ENUM, RID_STRUCT, RID_UNION, RID_IF, RID_ELSE, | |
| 73 RID_WHILE, RID_DO, RID_FOR, RID_SWITCH, RID_CASE, | |
| 74 RID_DEFAULT, RID_BREAK, RID_CONTINUE, RID_RETURN, RID_GOTO, | |
| 75 RID_SIZEOF, | |
| 76 | |
| 77 /* C extensions */ | |
| 78 RID_ASM, RID_TYPEOF, RID_ALIGNOF, RID_ATTRIBUTE, RID_VA_ARG, | |
| 79 RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_CHOOSE_EXPR, | |
| 80 RID_TYPES_COMPATIBLE_P, | |
| 81 RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128, | |
| 82 RID_FRACT, RID_ACCUM, | |
| 83 | |
| 84 /* This means to warn that this is a C++ keyword, and then treat it | |
| 85 as a normal identifier. */ | |
| 86 RID_CXX_COMPAT_WARN, | |
| 87 | |
| 88 /* Too many ways of getting the name of a function as a string */ | |
| 89 RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME, | |
| 90 | |
| 91 /* C++ */ | |
| 92 RID_BOOL, RID_WCHAR, RID_CLASS, | |
| 93 RID_PUBLIC, RID_PRIVATE, RID_PROTECTED, | |
| 94 RID_TEMPLATE, RID_NULL, RID_CATCH, | |
| 95 RID_DELETE, RID_FALSE, RID_NAMESPACE, | |
| 96 RID_NEW, RID_OFFSETOF, RID_OPERATOR, | |
| 97 RID_THIS, RID_THROW, RID_TRUE, | |
| 98 RID_TRY, RID_TYPENAME, RID_TYPEID, | |
| 99 RID_USING, RID_CHAR16, RID_CHAR32, | |
| 100 | |
| 101 /* casts */ | |
| 102 RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST, | |
| 103 | |
| 104 /* C++ extensions */ | |
| 105 RID_HAS_NOTHROW_ASSIGN, RID_HAS_NOTHROW_CONSTRUCTOR, | |
| 106 RID_HAS_NOTHROW_COPY, RID_HAS_TRIVIAL_ASSIGN, | |
| 107 RID_HAS_TRIVIAL_CONSTRUCTOR, RID_HAS_TRIVIAL_COPY, | |
| 108 RID_HAS_TRIVIAL_DESTRUCTOR, RID_HAS_VIRTUAL_DESTRUCTOR, | |
| 109 RID_IS_ABSTRACT, RID_IS_BASE_OF, | |
| 110 RID_IS_CONVERTIBLE_TO, RID_IS_CLASS, | |
| 111 RID_IS_EMPTY, RID_IS_ENUM, | |
| 112 RID_IS_POD, RID_IS_POLYMORPHIC, | |
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113 RID_IS_STD_LAYOUT, RID_IS_TRIVIAL, |
| 0 | 114 RID_IS_UNION, |
| 115 | |
| 116 /* C++0x */ | |
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117 RID_STATIC_ASSERT, RID_CONSTEXPR, RID_DECLTYPE, |
| 0 | 118 |
| 119 /* Objective-C */ | |
| 120 RID_AT_ENCODE, RID_AT_END, | |
| 121 RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS, | |
| 122 RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC, | |
| 123 RID_AT_PROTOCOL, RID_AT_SELECTOR, | |
| 124 RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH, | |
| 125 RID_AT_FINALLY, RID_AT_SYNCHRONIZED, | |
| 126 RID_AT_INTERFACE, | |
| 127 RID_AT_IMPLEMENTATION, | |
| 128 | |
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129 /* Named address support, mapping the keyword to a particular named address |
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130 number. Named address space 0 is reserved for the generic address. If |
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131 there are more than 254 named addresses, the addr_space_t type will need |
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132 to be grown from an unsigned char to unsigned short. */ |
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133 RID_ADDR_SPACE_0, /* generic address */ |
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134 RID_ADDR_SPACE_1, |
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135 RID_ADDR_SPACE_2, |
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136 RID_ADDR_SPACE_3, |
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137 RID_ADDR_SPACE_4, |
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138 RID_ADDR_SPACE_5, |
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139 RID_ADDR_SPACE_6, |
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140 RID_ADDR_SPACE_7, |
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141 RID_ADDR_SPACE_8, |
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142 RID_ADDR_SPACE_9, |
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143 RID_ADDR_SPACE_10, |
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144 RID_ADDR_SPACE_11, |
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145 RID_ADDR_SPACE_12, |
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146 RID_ADDR_SPACE_13, |
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147 RID_ADDR_SPACE_14, |
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148 RID_ADDR_SPACE_15, |
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149 |
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150 RID_FIRST_ADDR_SPACE = RID_ADDR_SPACE_0, |
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151 RID_LAST_ADDR_SPACE = RID_ADDR_SPACE_15, |
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152 |
| 0 | 153 RID_MAX, |
| 154 | |
| 155 RID_FIRST_MODIFIER = RID_STATIC, | |
| 156 RID_LAST_MODIFIER = RID_ONEWAY, | |
| 157 | |
| 158 RID_FIRST_CXX0X = RID_STATIC_ASSERT, | |
| 159 RID_LAST_CXX0X = RID_DECLTYPE, | |
| 160 RID_FIRST_AT = RID_AT_ENCODE, | |
| 161 RID_LAST_AT = RID_AT_IMPLEMENTATION, | |
| 162 RID_FIRST_PQ = RID_IN, | |
| 163 RID_LAST_PQ = RID_ONEWAY | |
| 164 }; | |
| 165 | |
| 166 #define OBJC_IS_AT_KEYWORD(rid) \ | |
| 167 ((unsigned int) (rid) >= (unsigned int) RID_FIRST_AT && \ | |
| 168 (unsigned int) (rid) <= (unsigned int) RID_LAST_AT) | |
| 169 | |
| 170 #define OBJC_IS_PQ_KEYWORD(rid) \ | |
| 171 ((unsigned int) (rid) >= (unsigned int) RID_FIRST_PQ && \ | |
| 172 (unsigned int) (rid) <= (unsigned int) RID_LAST_PQ) | |
| 173 | |
| 174 /* The elements of `ridpointers' are identifier nodes for the reserved | |
| 175 type names and storage classes. It is indexed by a RID_... value. */ | |
| 176 extern GTY ((length ("(int) RID_MAX"))) tree *ridpointers; | |
| 177 | |
| 178 /* Standard named or nameless data types of the C compiler. */ | |
| 179 | |
| 180 enum c_tree_index | |
| 181 { | |
| 182 CTI_CHAR16_TYPE, | |
| 183 CTI_CHAR32_TYPE, | |
| 184 CTI_WCHAR_TYPE, | |
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185 CTI_UNDERLYING_WCHAR_TYPE, |
| 0 | 186 CTI_WINT_TYPE, |
| 187 CTI_SIGNED_SIZE_TYPE, /* For format checking only. */ | |
| 188 CTI_UNSIGNED_PTRDIFF_TYPE, /* For format checking only. */ | |
| 189 CTI_INTMAX_TYPE, | |
| 190 CTI_UINTMAX_TYPE, | |
| 191 CTI_WIDEST_INT_LIT_TYPE, | |
| 192 CTI_WIDEST_UINT_LIT_TYPE, | |
| 193 | |
|
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194 /* Types for <stdint.h>, that may not be defined on all |
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195 targets. */ |
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196 CTI_SIG_ATOMIC_TYPE, |
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197 CTI_INT8_TYPE, |
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198 CTI_INT16_TYPE, |
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199 CTI_INT32_TYPE, |
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200 CTI_INT64_TYPE, |
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201 CTI_UINT8_TYPE, |
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202 CTI_UINT16_TYPE, |
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203 CTI_UINT32_TYPE, |
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204 CTI_UINT64_TYPE, |
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205 CTI_INT_LEAST8_TYPE, |
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206 CTI_INT_LEAST16_TYPE, |
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207 CTI_INT_LEAST32_TYPE, |
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208 CTI_INT_LEAST64_TYPE, |
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209 CTI_UINT_LEAST8_TYPE, |
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210 CTI_UINT_LEAST16_TYPE, |
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211 CTI_UINT_LEAST32_TYPE, |
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212 CTI_UINT_LEAST64_TYPE, |
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213 CTI_INT_FAST8_TYPE, |
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214 CTI_INT_FAST16_TYPE, |
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215 CTI_INT_FAST32_TYPE, |
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216 CTI_INT_FAST64_TYPE, |
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217 CTI_UINT_FAST8_TYPE, |
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218 CTI_UINT_FAST16_TYPE, |
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219 CTI_UINT_FAST32_TYPE, |
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220 CTI_UINT_FAST64_TYPE, |
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221 CTI_INTPTR_TYPE, |
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222 CTI_UINTPTR_TYPE, |
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223 |
| 0 | 224 CTI_CHAR_ARRAY_TYPE, |
| 225 CTI_CHAR16_ARRAY_TYPE, | |
| 226 CTI_CHAR32_ARRAY_TYPE, | |
| 227 CTI_WCHAR_ARRAY_TYPE, | |
| 228 CTI_INT_ARRAY_TYPE, | |
| 229 CTI_STRING_TYPE, | |
| 230 CTI_CONST_STRING_TYPE, | |
| 231 | |
| 232 /* Type for boolean expressions (bool in C++, int in C). */ | |
| 233 CTI_TRUTHVALUE_TYPE, | |
| 234 CTI_TRUTHVALUE_TRUE, | |
| 235 CTI_TRUTHVALUE_FALSE, | |
| 236 | |
| 237 CTI_DEFAULT_FUNCTION_TYPE, | |
| 238 | |
| 239 /* These are not types, but we have to look them up all the time. */ | |
| 240 CTI_FUNCTION_NAME_DECL, | |
| 241 CTI_PRETTY_FUNCTION_NAME_DECL, | |
| 242 CTI_C99_FUNCTION_NAME_DECL, | |
| 243 CTI_SAVED_FUNCTION_NAME_DECLS, | |
| 244 | |
| 245 CTI_VOID_ZERO, | |
| 246 | |
| 247 CTI_NULL, | |
| 248 | |
| 249 CTI_MAX | |
| 250 }; | |
| 251 | |
| 252 #define C_CPP_HASHNODE(id) \ | |
| 253 (&(((struct c_common_identifier *) (id))->node)) | |
| 254 #define C_RID_CODE(id) \ | |
| 255 ((enum rid) (((struct c_common_identifier *) (id))->node.rid_code)) | |
| 256 #define C_SET_RID_CODE(id, code) \ | |
| 257 (((struct c_common_identifier *) (id))->node.rid_code = (unsigned char) code) | |
| 258 | |
| 259 /* Identifier part common to the C front ends. Inherits from | |
| 260 tree_identifier, despite appearances. */ | |
|
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261 struct GTY(()) c_common_identifier { |
| 0 | 262 struct tree_common common; |
| 263 struct cpp_hashnode node; | |
| 264 }; | |
| 265 | |
| 266 /* An entry in the reserved keyword table. */ | |
| 267 | |
| 268 struct c_common_resword | |
| 269 { | |
| 270 const char *const word; | |
| 271 ENUM_BITFIELD(rid) const rid : 16; | |
| 272 const unsigned int disable : 16; | |
| 273 }; | |
| 274 | |
| 275 /* Disable mask. Keywords are disabled if (reswords[i].disable & | |
| 276 mask) is _true_. Thus for keywords which are present in all | |
| 277 languages the disable field is zero. */ | |
| 278 | |
| 279 #define D_CONLY 0x001 /* C only (not in C++). */ | |
| 280 #define D_CXXONLY 0x002 /* C++ only (not in C). */ | |
| 281 #define D_C99 0x004 /* In C, C99 only. */ | |
| 282 #define D_CXX0X 0x008 /* In C++, C++0X only. */ | |
| 283 #define D_EXT 0x010 /* GCC extension. */ | |
| 284 #define D_EXT89 0x020 /* GCC extension incorporated in C99. */ | |
| 285 #define D_ASM 0x040 /* Disabled by -fno-asm. */ | |
| 286 #define D_OBJC 0x080 /* In Objective C and neither C nor C++. */ | |
| 287 #define D_CXX_OBJC 0x100 /* In Objective C, and C++, but not C. */ | |
| 288 #define D_CXXWARN 0x200 /* In C warn with -Wcxx-compat. */ | |
| 289 | |
|
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290 /* Macro for backends to define named address keywords. */ |
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291 #define ADDR_SPACE_KEYWORD(STRING, VALUE) \ |
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292 { STRING, RID_FIRST_ADDR_SPACE + (VALUE), D_CONLY | D_EXT } |
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293 |
| 0 | 294 /* The reserved keyword table. */ |
| 295 extern const struct c_common_resword c_common_reswords[]; | |
| 296 | |
| 297 /* The number of items in the reserved keyword table. */ | |
| 298 extern const unsigned int num_c_common_reswords; | |
| 299 | |
| 300 #define char16_type_node c_global_trees[CTI_CHAR16_TYPE] | |
| 301 #define char32_type_node c_global_trees[CTI_CHAR32_TYPE] | |
| 302 #define wchar_type_node c_global_trees[CTI_WCHAR_TYPE] | |
|
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303 #define underlying_wchar_type_node c_global_trees[CTI_UNDERLYING_WCHAR_TYPE] |
| 0 | 304 #define wint_type_node c_global_trees[CTI_WINT_TYPE] |
| 305 #define signed_size_type_node c_global_trees[CTI_SIGNED_SIZE_TYPE] | |
| 306 #define unsigned_ptrdiff_type_node c_global_trees[CTI_UNSIGNED_PTRDIFF_TYPE] | |
| 307 #define intmax_type_node c_global_trees[CTI_INTMAX_TYPE] | |
| 308 #define uintmax_type_node c_global_trees[CTI_UINTMAX_TYPE] | |
| 309 #define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE] | |
| 310 #define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE] | |
| 311 | |
|
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312 #define sig_atomic_type_node c_global_trees[CTI_SIG_ATOMIC_TYPE] |
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313 #define int8_type_node c_global_trees[CTI_INT8_TYPE] |
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314 #define int16_type_node c_global_trees[CTI_INT16_TYPE] |
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315 #define int32_type_node c_global_trees[CTI_INT32_TYPE] |
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316 #define int64_type_node c_global_trees[CTI_INT64_TYPE] |
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317 #define uint8_type_node c_global_trees[CTI_UINT8_TYPE] |
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318 #define uint16_type_node c_global_trees[CTI_UINT16_TYPE] |
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319 #define c_uint32_type_node c_global_trees[CTI_UINT32_TYPE] |
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320 #define c_uint64_type_node c_global_trees[CTI_UINT64_TYPE] |
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321 #define int_least8_type_node c_global_trees[CTI_INT_LEAST8_TYPE] |
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322 #define int_least16_type_node c_global_trees[CTI_INT_LEAST16_TYPE] |
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323 #define int_least32_type_node c_global_trees[CTI_INT_LEAST32_TYPE] |
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324 #define int_least64_type_node c_global_trees[CTI_INT_LEAST64_TYPE] |
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325 #define uint_least8_type_node c_global_trees[CTI_UINT_LEAST8_TYPE] |
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326 #define uint_least16_type_node c_global_trees[CTI_UINT_LEAST16_TYPE] |
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327 #define uint_least32_type_node c_global_trees[CTI_UINT_LEAST32_TYPE] |
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328 #define uint_least64_type_node c_global_trees[CTI_UINT_LEAST64_TYPE] |
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329 #define int_fast8_type_node c_global_trees[CTI_INT_FAST8_TYPE] |
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330 #define int_fast16_type_node c_global_trees[CTI_INT_FAST16_TYPE] |
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331 #define int_fast32_type_node c_global_trees[CTI_INT_FAST32_TYPE] |
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332 #define int_fast64_type_node c_global_trees[CTI_INT_FAST64_TYPE] |
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333 #define uint_fast8_type_node c_global_trees[CTI_UINT_FAST8_TYPE] |
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334 #define uint_fast16_type_node c_global_trees[CTI_UINT_FAST16_TYPE] |
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335 #define uint_fast32_type_node c_global_trees[CTI_UINT_FAST32_TYPE] |
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336 #define uint_fast64_type_node c_global_trees[CTI_UINT_FAST64_TYPE] |
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337 #define intptr_type_node c_global_trees[CTI_INTPTR_TYPE] |
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338 #define uintptr_type_node c_global_trees[CTI_UINTPTR_TYPE] |
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339 |
| 0 | 340 #define truthvalue_type_node c_global_trees[CTI_TRUTHVALUE_TYPE] |
| 341 #define truthvalue_true_node c_global_trees[CTI_TRUTHVALUE_TRUE] | |
| 342 #define truthvalue_false_node c_global_trees[CTI_TRUTHVALUE_FALSE] | |
| 343 | |
| 344 #define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE] | |
| 345 #define char16_array_type_node c_global_trees[CTI_CHAR16_ARRAY_TYPE] | |
| 346 #define char32_array_type_node c_global_trees[CTI_CHAR32_ARRAY_TYPE] | |
| 347 #define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE] | |
| 348 #define int_array_type_node c_global_trees[CTI_INT_ARRAY_TYPE] | |
| 349 #define string_type_node c_global_trees[CTI_STRING_TYPE] | |
| 350 #define const_string_type_node c_global_trees[CTI_CONST_STRING_TYPE] | |
| 351 | |
| 352 #define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE] | |
| 353 | |
| 354 #define function_name_decl_node c_global_trees[CTI_FUNCTION_NAME_DECL] | |
| 355 #define pretty_function_name_decl_node c_global_trees[CTI_PRETTY_FUNCTION_NAME_DECL] | |
| 356 #define c99_function_name_decl_node c_global_trees[CTI_C99_FUNCTION_NAME_DECL] | |
| 357 #define saved_function_name_decls c_global_trees[CTI_SAVED_FUNCTION_NAME_DECLS] | |
| 358 | |
| 359 /* A node for `((void) 0)'. */ | |
| 360 #define void_zero_node c_global_trees[CTI_VOID_ZERO] | |
| 361 | |
| 362 /* The node for C++ `__null'. */ | |
| 363 #define null_node c_global_trees[CTI_NULL] | |
| 364 | |
| 365 extern GTY(()) tree c_global_trees[CTI_MAX]; | |
| 366 | |
| 367 /* In a RECORD_TYPE, a sorted array of the fields of the type, not a | |
| 368 tree for size reasons. */ | |
|
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369 struct GTY(()) sorted_fields_type { |
| 0 | 370 int len; |
| 371 tree GTY((length ("%h.len"))) elts[1]; | |
| 372 }; | |
| 373 | |
| 374 /* Mark which labels are explicitly declared. | |
| 375 These may be shadowed, and may be referenced from nested functions. */ | |
| 376 #define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label) | |
| 377 | |
| 378 typedef enum c_language_kind | |
| 379 { | |
| 380 clk_c = 0, /* C90, C94 or C99 */ | |
| 381 clk_objc = 1, /* clk_c with ObjC features. */ | |
| 382 clk_cxx = 2, /* ANSI/ISO C++ */ | |
| 383 clk_objcxx = 3 /* clk_cxx with ObjC features. */ | |
| 384 } | |
| 385 c_language_kind; | |
| 386 | |
| 387 /* To test for a specific language use c_language, defined by each | |
| 388 front end. For "ObjC features" or "not C++" use the macros. */ | |
| 389 extern c_language_kind c_language; | |
| 390 | |
|
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391 #define c_dialect_cxx() ((c_language & clk_cxx) != 0) |
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392 #define c_dialect_objc() ((c_language & clk_objc) != 0) |
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393 |
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394 /* The various name of operator that appears in error messages. */ |
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395 typedef enum ref_operator { |
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396 /* NULL */ |
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397 RO_NULL, |
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398 /* array indexing */ |
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399 RO_ARRAY_INDEXING, |
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400 /* unary * */ |
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401 RO_UNARY_STAR, |
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402 /* -> */ |
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403 RO_ARROW, |
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404 /* implicit conversion */ |
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405 RO_IMPLICIT_CONVERSION |
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406 } ref_operator; |
| 0 | 407 |
| 408 /* Information about a statement tree. */ | |
| 409 | |
|
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410 struct GTY(()) stmt_tree_s { |
| 0 | 411 /* The current statement list being collected. */ |
| 412 tree x_cur_stmt_list; | |
| 413 | |
| 414 /* In C++, Nonzero if we should treat statements as full | |
| 415 expressions. In particular, this variable is no-zero if at the | |
| 416 end of a statement we should destroy any temporaries created | |
| 417 during that statement. Similarly, if, at the end of a block, we | |
| 418 should destroy any local variables in this block. Normally, this | |
| 419 variable is nonzero, since those are the normal semantics of | |
| 420 C++. | |
| 421 | |
| 422 However, in order to represent aggregate initialization code as | |
| 423 tree structure, we use statement-expressions. The statements | |
| 424 within the statement expression should not result in cleanups | |
| 425 being run until the entire enclosing statement is complete. | |
| 426 | |
| 427 This flag has no effect in C. */ | |
| 428 int stmts_are_full_exprs_p; | |
| 429 }; | |
| 430 | |
| 431 typedef struct stmt_tree_s *stmt_tree; | |
| 432 | |
| 433 /* Global state pertinent to the current function. Some C dialects | |
| 434 extend this structure with additional fields. */ | |
| 435 | |
|
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436 struct GTY(()) c_language_function { |
| 0 | 437 /* While we are parsing the function, this contains information |
| 438 about the statement-tree that we are building. */ | |
| 439 struct stmt_tree_s x_stmt_tree; | |
| 440 }; | |
| 441 | |
| 442 /* When building a statement-tree, this is the current statement list | |
| 443 being collected. It's TREE_CHAIN is a back-pointer to the previous | |
| 444 statement list. */ | |
| 445 | |
| 446 #define cur_stmt_list (current_stmt_tree ()->x_cur_stmt_list) | |
| 447 | |
| 448 /* Language-specific hooks. */ | |
| 449 | |
| 450 /* If non-NULL, this function is called after a precompile header file | |
| 451 is loaded. */ | |
| 452 extern void (*lang_post_pch_load) (void); | |
| 453 | |
| 454 extern void push_file_scope (void); | |
| 455 extern void pop_file_scope (void); | |
| 456 extern stmt_tree current_stmt_tree (void); | |
| 457 extern tree push_stmt_list (void); | |
| 458 extern tree pop_stmt_list (tree); | |
| 459 extern tree add_stmt (tree); | |
| 460 extern void push_cleanup (tree, tree, bool); | |
| 461 extern tree pushdecl_top_level (tree); | |
| 462 extern tree pushdecl (tree); | |
|
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463 extern tree build_modify_expr (location_t, tree, tree, enum tree_code, |
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464 location_t, tree, tree); |
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465 extern tree build_indirect_ref (location_t, tree, ref_operator); |
| 0 | 466 |
| 467 extern int c_expand_decl (tree); | |
| 468 | |
| 469 extern int field_decl_cmp (const void *, const void *); | |
| 470 extern void resort_sorted_fields (void *, void *, gt_pointer_operator, | |
| 471 void *); | |
| 472 extern bool has_c_linkage (const_tree decl); | |
| 473 | |
| 474 /* Switches common to the C front ends. */ | |
| 475 | |
| 476 /* Nonzero if prepreprocessing only. */ | |
| 477 | |
| 478 extern int flag_preprocess_only; | |
| 479 | |
| 480 /* Zero means that faster, ...NonNil variants of objc_msgSend... | |
| 481 calls will be used in ObjC; passing nil receivers to such calls | |
| 482 will most likely result in crashes. */ | |
| 483 extern int flag_nil_receivers; | |
| 484 | |
| 485 /* Nonzero means that we will allow new ObjC exception syntax (@throw, | |
| 486 @try, etc.) in source code. */ | |
| 487 extern int flag_objc_exceptions; | |
| 488 | |
| 489 /* Nonzero means that we generate NeXT setjmp based exceptions. */ | |
| 490 extern int flag_objc_sjlj_exceptions; | |
| 491 | |
| 492 /* Nonzero means that code generation will be altered to support | |
| 493 "zero-link" execution. This currently affects ObjC only, but may | |
| 494 affect other languages in the future. */ | |
| 495 extern int flag_zero_link; | |
| 496 | |
| 497 /* Nonzero means emit an '__OBJC, __image_info' for the current translation | |
| 498 unit. It will inform the ObjC runtime that class definition(s) herein | |
| 499 contained are to replace one(s) previously loaded. */ | |
| 500 extern int flag_replace_objc_classes; | |
| 501 | |
| 502 /* Nonzero means don't output line number information. */ | |
| 503 | |
| 504 extern char flag_no_line_commands; | |
| 505 | |
| 506 /* Nonzero causes -E output not to be done, but directives such as | |
| 507 #define that have side effects are still obeyed. */ | |
| 508 | |
| 509 extern char flag_no_output; | |
| 510 | |
| 511 /* Nonzero means dump macros in some fashion; contains the 'D', 'M', | |
| 512 'N' or 'U' of the command line switch. */ | |
| 513 | |
| 514 extern char flag_dump_macros; | |
| 515 | |
| 516 /* Nonzero means pass #include lines through to the output. */ | |
| 517 | |
| 518 extern char flag_dump_includes; | |
| 519 | |
| 520 /* Nonzero means process PCH files while preprocessing. */ | |
| 521 | |
| 522 extern bool flag_pch_preprocess; | |
| 523 | |
| 524 /* The file name to which we should write a precompiled header, or | |
| 525 NULL if no header will be written in this compile. */ | |
| 526 | |
| 527 extern const char *pch_file; | |
| 528 | |
| 529 /* Nonzero if an ISO standard was selected. It rejects macros in the | |
| 530 user's namespace. */ | |
| 531 | |
| 532 extern int flag_iso; | |
| 533 | |
| 534 /* Nonzero if -undef was given. It suppresses target built-in macros | |
| 535 and assertions. */ | |
| 536 | |
| 537 extern int flag_undef; | |
| 538 | |
| 539 /* Nonzero means don't recognize the non-ANSI builtin functions. */ | |
| 540 | |
| 541 extern int flag_no_builtin; | |
| 542 | |
| 543 /* Nonzero means don't recognize the non-ANSI builtin functions. | |
| 544 -ansi sets this. */ | |
| 545 | |
| 546 extern int flag_no_nonansi_builtin; | |
| 547 | |
| 548 /* Nonzero means give `double' the same size as `float'. */ | |
| 549 | |
| 550 extern int flag_short_double; | |
| 551 | |
| 552 /* Nonzero means give `wchar_t' the same size as `short'. */ | |
| 553 | |
| 554 extern int flag_short_wchar; | |
| 555 | |
| 556 /* Nonzero means allow implicit conversions between vectors with | |
| 557 differing numbers of subparts and/or differing element types. */ | |
| 558 extern int flag_lax_vector_conversions; | |
| 559 | |
| 560 /* Nonzero means allow Microsoft extensions without warnings or errors. */ | |
| 561 extern int flag_ms_extensions; | |
| 562 | |
| 563 /* Nonzero means don't recognize the keyword `asm'. */ | |
| 564 | |
| 565 extern int flag_no_asm; | |
| 566 | |
| 567 /* Nonzero means give string constants the type `const char *', as mandated | |
| 568 by the standard. */ | |
| 569 | |
| 570 extern int flag_const_strings; | |
| 571 | |
| 572 /* Nonzero means to treat bitfields as signed unless they say `unsigned'. */ | |
| 573 | |
| 574 extern int flag_signed_bitfields; | |
| 575 | |
| 576 /* Warn about #pragma directives that are not recognized. */ | |
| 577 | |
| 578 extern int warn_unknown_pragmas; /* Tri state variable. */ | |
| 579 | |
| 580 /* Warn about format/argument anomalies in calls to formatted I/O functions | |
| 581 (*printf, *scanf, strftime, strfmon, etc.). */ | |
| 582 | |
| 583 extern int warn_format; | |
| 584 | |
| 585 | |
| 586 /* C/ObjC language option variables. */ | |
| 587 | |
| 588 | |
| 589 /* Nonzero means allow type mismatches in conditional expressions; | |
| 590 just make their values `void'. */ | |
| 591 | |
| 592 extern int flag_cond_mismatch; | |
| 593 | |
| 594 /* Nonzero means enable C89 Amendment 1 features. */ | |
| 595 | |
| 596 extern int flag_isoc94; | |
| 597 | |
| 598 /* Nonzero means use the ISO C99 dialect of C. */ | |
| 599 | |
| 600 extern int flag_isoc99; | |
| 601 | |
| 602 /* Nonzero means that we have builtin functions, and main is an int. */ | |
| 603 | |
| 604 extern int flag_hosted; | |
| 605 | |
| 606 /* ObjC language option variables. */ | |
| 607 | |
| 608 | |
| 609 /* Open and close the file for outputting class declarations, if | |
| 610 requested (ObjC). */ | |
| 611 | |
| 612 extern int flag_gen_declaration; | |
| 613 | |
| 614 /* Tells the compiler that this is a special run. Do not perform any | |
| 615 compiling, instead we are to test some platform dependent features | |
| 616 and output a C header file with appropriate definitions. */ | |
| 617 | |
| 618 extern int print_struct_values; | |
| 619 | |
| 620 /* ???. Undocumented. */ | |
| 621 | |
| 622 extern const char *constant_string_class_name; | |
| 623 | |
| 624 | |
| 625 /* C++ language option variables. */ | |
| 626 | |
| 627 | |
| 628 /* Nonzero means don't recognize any extension keywords. */ | |
| 629 | |
| 630 extern int flag_no_gnu_keywords; | |
| 631 | |
| 632 /* Nonzero means do emit exported implementations of functions even if | |
| 633 they can be inlined. */ | |
| 634 | |
| 635 extern int flag_implement_inlines; | |
| 636 | |
| 637 /* Nonzero means that implicit instantiations will be emitted if needed. */ | |
| 638 | |
| 639 extern int flag_implicit_templates; | |
| 640 | |
| 641 /* Nonzero means that implicit instantiations of inline templates will be | |
| 642 emitted if needed, even if instantiations of non-inline templates | |
| 643 aren't. */ | |
| 644 | |
| 645 extern int flag_implicit_inline_templates; | |
| 646 | |
| 647 /* Nonzero means generate separate instantiation control files and | |
| 648 juggle them at link time. */ | |
| 649 | |
| 650 extern int flag_use_repository; | |
| 651 | |
| 652 /* Nonzero if we want to issue diagnostics that the standard says are not | |
| 653 required. */ | |
| 654 | |
| 655 extern int flag_optional_diags; | |
| 656 | |
| 657 /* Nonzero means we should attempt to elide constructors when possible. */ | |
| 658 | |
| 659 extern int flag_elide_constructors; | |
| 660 | |
| 661 /* Nonzero means that member functions defined in class scope are | |
| 662 inline by default. */ | |
| 663 | |
| 664 extern int flag_default_inline; | |
| 665 | |
| 666 /* Controls whether compiler generates 'type descriptor' that give | |
| 667 run-time type information. */ | |
| 668 | |
| 669 extern int flag_rtti; | |
| 670 | |
| 671 /* Nonzero if we want to conserve space in the .o files. We do this | |
| 672 by putting uninitialized data and runtime initialized data into | |
| 673 .common instead of .data at the expense of not flagging multiple | |
| 674 definitions. */ | |
| 675 | |
| 676 extern int flag_conserve_space; | |
| 677 | |
| 678 /* Nonzero if we want to obey access control semantics. */ | |
| 679 | |
| 680 extern int flag_access_control; | |
| 681 | |
| 682 /* Nonzero if we want to check the return value of new and avoid calling | |
| 683 constructors if it is a null pointer. */ | |
| 684 | |
| 685 extern int flag_check_new; | |
| 686 | |
| 687 /* The supported C++ dialects. */ | |
| 688 | |
| 689 enum cxx_dialect { | |
| 690 /* C++98 */ | |
| 691 cxx98, | |
| 692 /* Experimental features that are likely to become part of | |
| 693 C++0x. */ | |
| 694 cxx0x | |
| 695 }; | |
| 696 | |
| 697 /* The C++ dialect being used. C++98 is the default. */ | |
| 698 extern enum cxx_dialect cxx_dialect; | |
| 699 | |
| 700 /* Nonzero if we want the new ISO rules for pushing a new scope for `for' | |
| 701 initialization variables. | |
| 702 0: Old rules, set by -fno-for-scope. | |
| 703 2: New ISO rules, set by -ffor-scope. | |
| 704 1: Try to implement new ISO rules, but with backup compatibility | |
| 705 (and warnings). This is the default, for now. */ | |
| 706 | |
| 707 extern int flag_new_for_scope; | |
| 708 | |
| 709 /* Nonzero if we want to emit defined symbols with common-like linkage as | |
| 710 weak symbols where possible, in order to conform to C++ semantics. | |
| 711 Otherwise, emit them as local symbols. */ | |
| 712 | |
| 713 extern int flag_weak; | |
| 714 | |
| 715 /* 0 means we want the preprocessor to not emit line directives for | |
| 716 the current working directory. 1 means we want it to do it. -1 | |
| 717 means we should decide depending on whether debugging information | |
| 718 is being emitted or not. */ | |
| 719 | |
| 720 extern int flag_working_directory; | |
| 721 | |
| 722 /* Nonzero to use __cxa_atexit, rather than atexit, to register | |
| 723 destructors for local statics and global objects. */ | |
| 724 | |
| 725 extern int flag_use_cxa_atexit; | |
| 726 | |
| 727 /* Nonzero to use __cxa_get_exception_ptr in the C++ exception-handling | |
| 728 logic. */ | |
| 729 | |
| 730 extern int flag_use_cxa_get_exception_ptr; | |
| 731 | |
| 732 /* Nonzero means to implement standard semantics for exception | |
| 733 specifications, calling unexpected if an exception is thrown that | |
| 734 doesn't match the specification. Zero means to treat them as | |
| 735 assertions and optimize accordingly, but not check them. */ | |
| 736 | |
| 737 extern int flag_enforce_eh_specs; | |
| 738 | |
| 739 /* Nonzero (the default) means to generate thread-safe code for | |
| 740 initializing local statics. */ | |
| 741 | |
| 742 extern int flag_threadsafe_statics; | |
| 743 | |
|
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744 /* Nonzero if we want to pretty-print template specializations as the |
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745 template signature followed by the arguments. */ |
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746 |
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747 extern int flag_pretty_templates; |
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748 |
| 0 | 749 /* Nonzero means warn about implicit declarations. */ |
| 750 | |
| 751 extern int warn_implicit; | |
| 752 | |
| 753 /* Warn about using __null (as NULL in C++) as sentinel. For code compiled | |
| 754 with GCC this doesn't matter as __null is guaranteed to have the right | |
| 755 size. */ | |
| 756 | |
| 757 extern int warn_strict_null_sentinel; | |
| 758 | |
| 759 /* Maximum template instantiation depth. This limit is rather | |
| 760 arbitrary, but it exists to limit the time it takes to notice | |
| 761 infinite template instantiations. */ | |
| 762 | |
| 763 extern int max_tinst_depth; | |
| 764 | |
|
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765 /* Nonzero means that we should not issue warnings about problems that |
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766 occur when the code is executed, because the code being processed |
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767 is not expected to be executed. This is set during parsing. This |
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768 is used for cases like sizeof() and "0 ? a : b". This is a count, |
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769 not a bool, because unexecuted expressions can nest. */ |
| 0 | 770 |
|
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771 extern int c_inhibit_evaluation_warnings; |
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772 |
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773 /* Whether lexing has been completed, so subsequent preprocessor |
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774 errors should use the compiler's input_location. */ |
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775 |
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776 extern bool done_lexing; |
| 0 | 777 |
| 778 /* C types are partitioned into three subsets: object, function, and | |
| 779 incomplete types. */ | |
| 780 #define C_TYPE_OBJECT_P(type) \ | |
| 781 (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type)) | |
| 782 | |
| 783 #define C_TYPE_INCOMPLETE_P(type) \ | |
| 784 (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type) == 0) | |
| 785 | |
| 786 #define C_TYPE_FUNCTION_P(type) \ | |
| 787 (TREE_CODE (type) == FUNCTION_TYPE) | |
| 788 | |
| 789 /* For convenience we define a single macro to identify the class of | |
| 790 object or incomplete types. */ | |
| 791 #define C_TYPE_OBJECT_OR_INCOMPLETE_P(type) \ | |
| 792 (!C_TYPE_FUNCTION_P (type)) | |
| 793 | |
| 794 /* Attribute table common to the C front ends. */ | |
| 795 extern const struct attribute_spec c_common_attribute_table[]; | |
| 796 extern const struct attribute_spec c_common_format_attribute_table[]; | |
| 797 | |
| 798 /* Pointer to function to lazily generate the VAR_DECL for __FUNCTION__ etc. | |
| 799 ID is the identifier to use, NAME is the string. | |
| 800 TYPE_DEP indicates whether it depends on type of the function or not | |
| 801 (i.e. __PRETTY_FUNCTION__). */ | |
| 802 | |
|
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803 extern tree (*make_fname_decl) (location_t, tree, int); |
| 0 | 804 |
|
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805 extern const char *c_addr_space_name (addr_space_t as); |
| 0 | 806 extern tree identifier_global_value (tree); |
| 807 extern void record_builtin_type (enum rid, const char *, tree); | |
| 808 extern tree build_void_list_node (void); | |
| 809 extern void start_fname_decls (void); | |
| 810 extern void finish_fname_decls (void); | |
| 811 extern const char *fname_as_string (int); | |
| 812 extern tree fname_decl (location_t, unsigned, tree); | |
| 813 | |
| 814 extern void check_function_arguments (tree, int, tree *, tree); | |
| 815 extern void check_function_arguments_recurse (void (*) | |
| 816 (void *, tree, | |
| 817 unsigned HOST_WIDE_INT), | |
| 818 void *, tree, | |
| 819 unsigned HOST_WIDE_INT); | |
| 820 extern bool check_builtin_function_arguments (tree, int, tree *); | |
| 821 extern void check_function_format (tree, int, tree *); | |
| 822 extern void set_Wformat (int); | |
| 823 extern tree handle_format_attribute (tree *, tree, tree, int, bool *); | |
| 824 extern tree handle_format_arg_attribute (tree *, tree, tree, int, bool *); | |
| 825 extern int c_common_handle_option (size_t code, const char *arg, int value); | |
| 826 extern bool c_common_missing_argument (const char *opt, size_t code); | |
| 827 extern tree c_common_type_for_mode (enum machine_mode, int); | |
| 828 extern tree c_common_type_for_size (unsigned int, int); | |
| 829 extern tree c_common_fixed_point_type_for_size (unsigned int, unsigned int, | |
| 830 int, int); | |
| 831 extern tree c_common_unsigned_type (tree); | |
| 832 extern tree c_common_signed_type (tree); | |
| 833 extern tree c_common_signed_or_unsigned_type (int, tree); | |
| 834 extern tree c_build_bitfield_integer_type (unsigned HOST_WIDE_INT, int); | |
| 835 extern bool decl_with_nonnull_addr_p (const_tree); | |
|
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836 extern tree c_fully_fold (tree, bool, bool *); |
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837 extern tree decl_constant_value_for_optimization (tree); |
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838 extern tree c_wrap_maybe_const (tree, bool); |
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839 extern tree c_save_expr (tree); |
| 0 | 840 extern tree c_common_truthvalue_conversion (location_t, tree); |
| 841 extern void c_apply_type_quals_to_decl (int, tree); | |
|
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842 extern tree c_sizeof_or_alignof_type (location_t, tree, bool, int); |
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843 extern tree c_alignof_expr (location_t, tree); |
| 0 | 844 /* Print an error message for invalid operands to arith operation CODE. |
| 845 NOP_EXPR is used as a special case (see truthvalue_conversion). */ | |
| 846 extern void binary_op_error (location_t, enum tree_code, tree, tree); | |
| 847 extern tree fix_string_type (tree); | |
| 848 struct varray_head_tag; | |
| 849 extern void constant_expression_warning (tree); | |
| 850 extern void constant_expression_error (tree); | |
| 851 extern bool strict_aliasing_warning (tree, tree, tree); | |
| 852 extern void warnings_for_convert_and_check (tree, tree, tree); | |
| 853 extern tree convert_and_check (tree, tree); | |
|
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854 extern void overflow_warning (location_t, tree); |
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855 extern void warn_logical_operator (location_t, enum tree_code, tree, |
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856 enum tree_code, tree, enum tree_code, tree); |
| 0 | 857 extern void check_main_parameter_types (tree decl); |
| 858 extern bool c_determine_visibility (tree); | |
| 859 extern bool same_scalar_type_ignoring_signedness (tree, tree); | |
|
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860 extern void mark_valid_location_for_stdc_pragma (bool); |
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861 extern bool valid_location_for_stdc_pragma_p (void); |
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862 extern void set_float_const_decimal64 (void); |
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863 extern void clear_float_const_decimal64 (void); |
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864 extern bool float_const_decimal64_p (void); |
| 0 | 865 |
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866 #define c_sizeof(LOC, T) c_sizeof_or_alignof_type (LOC, T, true, 1) |
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867 #define c_alignof(LOC, T) c_sizeof_or_alignof_type (LOC, T, false, 1) |
| 0 | 868 |
| 869 /* Subroutine of build_binary_op, used for certain operations. */ | |
| 870 extern tree shorten_binary_op (tree result_type, tree op0, tree op1, bool bitwise); | |
| 871 | |
| 872 /* Subroutine of build_binary_op, used for comparison operations. | |
| 873 See if the operands have both been converted from subword integer types | |
| 874 and, if so, perhaps change them both back to their original type. */ | |
| 875 extern tree shorten_compare (tree *, tree *, tree *, enum tree_code *); | |
| 876 | |
|
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877 extern tree pointer_int_sum (location_t, enum tree_code, tree, tree); |
| 0 | 878 |
| 879 /* Add qualifiers to a type, in the fashion for C. */ | |
| 880 extern tree c_build_qualified_type (tree, int); | |
| 881 | |
| 882 /* Build tree nodes and builtin functions common to both C and C++ language | |
| 883 frontends. */ | |
| 884 extern void c_common_nodes_and_builtins (void); | |
| 885 | |
| 886 extern void disable_builtin_function (const char *); | |
| 887 | |
| 888 extern void set_compound_literal_name (tree decl); | |
| 889 | |
|
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890 extern tree build_va_arg (location_t, tree, tree); |
| 0 | 891 |
| 892 extern unsigned int c_common_init_options (unsigned int, const char **); | |
| 893 extern bool c_common_post_options (const char **); | |
| 894 extern bool c_common_init (void); | |
| 895 extern void c_common_finish (void); | |
| 896 extern void c_common_parse_file (int); | |
| 897 extern alias_set_type c_common_get_alias_set (tree); | |
| 898 extern void c_register_builtin_type (tree, const char*); | |
| 899 extern bool c_promoting_integer_type_p (const_tree); | |
| 900 extern int self_promoting_args_p (const_tree); | |
| 901 extern tree strip_pointer_operator (tree); | |
| 902 extern tree strip_pointer_or_array_types (tree); | |
| 903 extern HOST_WIDE_INT c_common_to_target_charset (HOST_WIDE_INT); | |
| 904 | |
| 905 /* This is the basic parsing function. */ | |
| 906 extern void c_parse_file (void); | |
| 907 /* This is misnamed, it actually performs end-of-compilation processing. */ | |
| 908 extern void finish_file (void); | |
| 909 | |
| 910 | |
| 911 /* These macros provide convenient access to the various _STMT nodes. */ | |
| 912 | |
| 913 /* Nonzero if a given STATEMENT_LIST represents the outermost binding | |
| 914 if a statement expression. */ | |
| 915 #define STATEMENT_LIST_STMT_EXPR(NODE) \ | |
| 916 TREE_LANG_FLAG_1 (STATEMENT_LIST_CHECK (NODE)) | |
| 917 | |
| 918 /* Nonzero if a label has been added to the statement list. */ | |
| 919 #define STATEMENT_LIST_HAS_LABEL(NODE) \ | |
| 920 TREE_LANG_FLAG_3 (STATEMENT_LIST_CHECK (NODE)) | |
| 921 | |
|
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922 /* C_MAYBE_CONST_EXPR accessors. */ |
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923 #define C_MAYBE_CONST_EXPR_PRE(NODE) \ |
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924 TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 0) |
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925 #define C_MAYBE_CONST_EXPR_EXPR(NODE) \ |
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926 TREE_OPERAND (C_MAYBE_CONST_EXPR_CHECK (NODE), 1) |
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927 #define C_MAYBE_CONST_EXPR_INT_OPERANDS(NODE) \ |
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928 TREE_LANG_FLAG_0 (C_MAYBE_CONST_EXPR_CHECK (NODE)) |
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929 #define C_MAYBE_CONST_EXPR_NON_CONST(NODE) \ |
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930 TREE_LANG_FLAG_1 (C_MAYBE_CONST_EXPR_CHECK (NODE)) |
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931 #define EXPR_INT_CONST_OPERANDS(EXPR) \ |
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932 (INTEGRAL_TYPE_P (TREE_TYPE (EXPR)) \ |
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933 && (TREE_CODE (EXPR) == INTEGER_CST \ |
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934 || (TREE_CODE (EXPR) == C_MAYBE_CONST_EXPR \ |
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935 && C_MAYBE_CONST_EXPR_INT_OPERANDS (EXPR)))) |
| 0 | 936 |
| 937 /* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */ | |
| 938 #define DECL_C_BIT_FIELD(NODE) \ | |
| 939 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) == 1) | |
| 940 #define SET_DECL_C_BIT_FIELD(NODE) \ | |
| 941 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 1) | |
| 942 #define CLEAR_DECL_C_BIT_FIELD(NODE) \ | |
| 943 (DECL_LANG_FLAG_4 (FIELD_DECL_CHECK (NODE)) = 0) | |
| 944 | |
|
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945 extern tree do_case (location_t, tree, tree); |
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946 extern tree build_stmt (location_t, enum tree_code, ...); |
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947 extern tree build_case_label (location_t, tree, tree, tree); |
| 0 | 948 |
| 949 /* These functions must be defined by each front-end which implements | |
| 950 a variant of the C language. They are used in c-common.c. */ | |
| 951 | |
| 952 extern tree build_unary_op (location_t, enum tree_code, tree, int); | |
| 953 extern tree build_binary_op (location_t, enum tree_code, tree, tree, int); | |
| 954 extern tree perform_integral_promotions (tree); | |
| 955 | |
| 956 /* These functions must be defined by each front-end which implements | |
| 957 a variant of the C language. They are used by port files. */ | |
| 958 | |
| 959 extern tree default_conversion (tree); | |
| 960 | |
| 961 /* Given two integer or real types, return the type for their sum. | |
| 962 Given two compatible ANSI C types, returns the merged type. */ | |
| 963 | |
| 964 extern tree common_type (tree, tree); | |
| 965 | |
| 966 extern tree decl_constant_value (tree); | |
| 967 | |
| 968 /* Handle increment and decrement of boolean types. */ | |
| 969 extern tree boolean_increment (enum tree_code, tree); | |
| 970 | |
| 971 extern int case_compare (splay_tree_key, splay_tree_key); | |
| 972 | |
|
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973 extern tree c_add_case_label (location_t, splay_tree, tree, tree, tree, tree); |
| 0 | 974 |
| 975 extern void c_do_switch_warnings (splay_tree, location_t, tree, tree); | |
| 976 | |
|
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977 extern tree build_function_call (location_t, tree, tree); |
| 0 | 978 |
|
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979 extern tree build_function_call_vec (location_t, tree, |
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980 VEC(tree,gc) *, VEC(tree,gc) *); |
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981 |
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982 extern tree resolve_overloaded_builtin (location_t, tree, VEC(tree,gc) *); |
| 0 | 983 |
| 984 extern tree finish_label_address_expr (tree, location_t); | |
| 985 | |
| 986 /* Same function prototype, but the C and C++ front ends have | |
| 987 different implementations. Used in c-common.c. */ | |
| 988 extern tree lookup_label (tree); | |
| 989 extern tree lookup_name (tree); | |
|
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990 extern bool lvalue_p (const_tree); |
| 0 | 991 |
| 992 extern bool vector_targets_convertible_p (const_tree t1, const_tree t2); | |
| 993 extern bool vector_types_convertible_p (const_tree t1, const_tree t2, bool emit_lax_note); | |
| 994 | |
| 995 extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *); | |
| 996 | |
| 997 extern void init_c_lex (void); | |
| 998 | |
| 999 extern void c_cpp_builtins (cpp_reader *); | |
| 1000 extern void c_cpp_builtins_optimize_pragma (cpp_reader *, tree, tree); | |
| 1001 | |
| 1002 /* Positive if an implicit `extern "C"' scope has just been entered; | |
| 1003 negative if such a scope has just been exited. */ | |
| 1004 extern GTY(()) int pending_lang_change; | |
| 1005 | |
| 1006 /* Information recorded about each file examined during compilation. */ | |
| 1007 | |
| 1008 struct c_fileinfo | |
| 1009 { | |
| 1010 int time; /* Time spent in the file. */ | |
| 1011 | |
| 1012 /* Flags used only by C++. | |
| 1013 INTERFACE_ONLY nonzero means that we are in an "interface" section | |
| 1014 of the compiler. INTERFACE_UNKNOWN nonzero means we cannot trust | |
| 1015 the value of INTERFACE_ONLY. If INTERFACE_UNKNOWN is zero and | |
| 1016 INTERFACE_ONLY is zero, it means that we are responsible for | |
| 1017 exporting definitions that others might need. */ | |
| 1018 short interface_only; | |
| 1019 short interface_unknown; | |
| 1020 }; | |
| 1021 | |
| 1022 struct c_fileinfo *get_fileinfo (const char *); | |
| 1023 extern void dump_time_statistics (void); | |
| 1024 | |
| 1025 extern bool c_dump_tree (void *, tree); | |
| 1026 | |
| 1027 extern void verify_sequence_points (tree); | |
| 1028 | |
| 1029 extern tree fold_offsetof (tree, tree); | |
| 1030 | |
| 1031 /* Places where an lvalue, or modifiable lvalue, may be required. | |
| 1032 Used to select diagnostic messages in lvalue_error and | |
| 1033 readonly_error. */ | |
| 1034 enum lvalue_use { | |
| 1035 lv_assign, | |
| 1036 lv_increment, | |
| 1037 lv_decrement, | |
| 1038 lv_addressof, | |
| 1039 lv_asm | |
| 1040 }; | |
| 1041 | |
| 1042 extern void lvalue_error (enum lvalue_use); | |
| 1043 | |
| 1044 extern int complete_array_type (tree *, tree, bool); | |
| 1045 | |
| 1046 extern tree builtin_type_for_size (int, bool); | |
| 1047 | |
| 1048 extern void warn_array_subscript_with_type_char (tree); | |
| 1049 extern void warn_about_parentheses (enum tree_code, | |
| 1050 enum tree_code, tree, | |
| 1051 enum tree_code, tree); | |
| 1052 extern void warn_for_unused_label (tree label); | |
| 1053 extern void warn_for_div_by_zero (location_t, tree divisor); | |
| 1054 extern void warn_for_sign_compare (location_t, | |
|
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1055 tree orig_op0, tree orig_op1, |
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1056 tree op0, tree op1, |
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1057 tree result_type, |
| 0 | 1058 enum tree_code resultcode); |
|
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1059 extern void set_underlying_type (tree x); |
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1060 extern bool is_typedef_decl (tree x); |
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1061 extern VEC(tree,gc) *make_tree_vector (void); |
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1062 extern void release_tree_vector (VEC(tree,gc) *); |
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1063 extern VEC(tree,gc) *make_tree_vector_single (tree); |
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1064 extern VEC(tree,gc) *make_tree_vector_copy (const VEC(tree,gc) *); |
| 0 | 1065 |
| 1066 /* In c-gimplify.c */ | |
| 1067 extern void c_genericize (tree); | |
| 1068 extern int c_gimplify_expr (tree *, gimple_seq *, gimple_seq *); | |
|
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1069 extern tree c_build_bind_expr (location_t, tree, tree); |
| 0 | 1070 |
| 1071 /* In c-pch.c */ | |
| 1072 extern void pch_init (void); | |
| 1073 extern int c_common_valid_pch (cpp_reader *pfile, const char *name, int fd); | |
| 1074 extern void c_common_read_pch (cpp_reader *pfile, const char *name, int fd, | |
| 1075 const char *orig); | |
| 1076 extern void c_common_write_pch (void); | |
| 1077 extern void c_common_no_more_pch (void); | |
| 1078 extern void c_common_pch_pragma (cpp_reader *pfile, const char *); | |
| 1079 extern void c_common_print_pch_checksum (FILE *f); | |
| 1080 | |
| 1081 /* In *-checksum.c */ | |
| 1082 extern const unsigned char executable_checksum[16]; | |
| 1083 | |
| 1084 /* In c-cppbuiltin.c */ | |
| 1085 extern void builtin_define_std (const char *macro); | |
| 1086 extern void builtin_define_with_value (const char *, const char *, int); | |
| 1087 extern void c_stddef_cpp_builtins (void); | |
| 1088 extern void fe_file_change (const struct line_map *); | |
|
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1089 extern void c_parse_error (const char *, enum cpp_ttype, tree, unsigned char); |
| 0 | 1090 |
| 1091 /* Objective-C / Objective-C++ entry points. */ | |
| 1092 | |
| 1093 /* The following ObjC/ObjC++ functions are called by the C and/or C++ | |
| 1094 front-ends; they all must have corresponding stubs in stub-objc.c. */ | |
| 1095 extern tree objc_is_class_name (tree); | |
| 1096 extern tree objc_is_object_ptr (tree); | |
| 1097 extern void objc_check_decl (tree); | |
| 1098 extern int objc_is_reserved_word (tree); | |
| 1099 extern bool objc_compare_types (tree, tree, int, tree); | |
| 1100 extern void objc_volatilize_decl (tree); | |
| 1101 extern bool objc_type_quals_match (tree, tree); | |
| 1102 extern tree objc_rewrite_function_call (tree, tree); | |
| 1103 extern tree objc_message_selector (void); | |
| 1104 extern tree objc_lookup_ivar (tree, tree); | |
| 1105 extern void objc_clear_super_receiver (void); | |
| 1106 extern int objc_is_public (tree, tree); | |
| 1107 extern tree objc_is_id (tree); | |
| 1108 extern void objc_declare_alias (tree, tree); | |
| 1109 extern void objc_declare_class (tree); | |
| 1110 extern void objc_declare_protocols (tree); | |
| 1111 extern tree objc_build_message_expr (tree); | |
| 1112 extern tree objc_finish_message_expr (tree, tree, tree); | |
|
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1113 extern tree objc_build_selector_expr (location_t, tree); |
| 0 | 1114 extern tree objc_build_protocol_expr (tree); |
| 1115 extern tree objc_build_encode_expr (tree); | |
| 1116 extern tree objc_build_string_object (tree); | |
| 1117 extern tree objc_get_protocol_qualified_type (tree, tree); | |
| 1118 extern tree objc_get_class_reference (tree); | |
| 1119 extern tree objc_get_class_ivars (tree); | |
| 1120 extern void objc_start_class_interface (tree, tree, tree); | |
| 1121 extern void objc_start_category_interface (tree, tree, tree); | |
| 1122 extern void objc_start_protocol (tree, tree); | |
| 1123 extern void objc_continue_interface (void); | |
| 1124 extern void objc_finish_interface (void); | |
| 1125 extern void objc_start_class_implementation (tree, tree); | |
| 1126 extern void objc_start_category_implementation (tree, tree); | |
| 1127 extern void objc_continue_implementation (void); | |
| 1128 extern void objc_finish_implementation (void); | |
| 1129 extern void objc_set_visibility (int); | |
| 1130 extern void objc_set_method_type (enum tree_code); | |
| 1131 extern tree objc_build_method_signature (tree, tree, tree, bool); | |
| 1132 extern void objc_add_method_declaration (tree); | |
| 1133 extern void objc_start_method_definition (tree); | |
| 1134 extern void objc_finish_method_definition (tree); | |
| 1135 extern void objc_add_instance_variable (tree); | |
| 1136 extern tree objc_build_keyword_decl (tree, tree, tree); | |
|
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1137 extern tree objc_build_throw_stmt (location_t, tree); |
| 0 | 1138 extern void objc_begin_try_stmt (location_t, tree); |
| 1139 extern tree objc_finish_try_stmt (void); | |
| 1140 extern void objc_begin_catch_clause (tree); | |
| 1141 extern void objc_finish_catch_clause (void); | |
| 1142 extern void objc_build_finally_clause (location_t, tree); | |
| 1143 extern tree objc_build_synchronized (location_t, tree, tree); | |
| 1144 extern int objc_static_init_needed_p (void); | |
| 1145 extern tree objc_generate_static_init_call (tree); | |
| 1146 extern tree objc_generate_write_barrier (tree, enum tree_code, tree); | |
| 1147 | |
| 1148 /* The following are provided by the C and C++ front-ends, and called by | |
| 1149 ObjC/ObjC++. */ | |
| 1150 extern void *objc_get_current_scope (void); | |
| 1151 extern void objc_mark_locals_volatile (void *); | |
| 1152 | |
| 1153 /* In c-ppoutput.c */ | |
| 1154 extern void init_pp_output (FILE *); | |
| 1155 extern void preprocess_file (cpp_reader *); | |
| 1156 extern void pp_file_change (const struct line_map *); | |
| 1157 extern void pp_dir_change (cpp_reader *, const char *); | |
| 1158 extern bool check_missing_format_attribute (tree, tree); | |
| 1159 | |
| 1160 /* In c-omp.c */ | |
|
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1161 extern tree c_finish_omp_master (location_t, tree); |
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1162 extern tree c_finish_omp_critical (location_t, tree, tree); |
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1163 extern tree c_finish_omp_ordered (location_t, tree); |
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1164 extern void c_finish_omp_barrier (location_t); |
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1165 extern tree c_finish_omp_atomic (location_t, enum tree_code, tree, tree); |
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parents:
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1166 extern void c_finish_omp_flush (location_t); |
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parents:
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1167 extern void c_finish_omp_taskwait (location_t); |
| 0 | 1168 extern tree c_finish_omp_for (location_t, tree, tree, tree, tree, tree, tree); |
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1169 extern void c_split_parallel_clauses (location_t, tree, tree *, tree *); |
| 0 | 1170 extern enum omp_clause_default_kind c_omp_predetermined_sharing (tree); |
| 1171 | |
| 1172 /* Not in c-omp.c; provided by the front end. */ | |
| 1173 extern bool c_omp_sharing_predetermined (tree); | |
| 1174 extern tree c_omp_remap_decl (tree, bool); | |
| 36 | 1175 extern void record_types_used_by_current_var_decl (tree); |
| 0 | 1176 |
| 1177 /* In order for the format checking to accept the C frontend | |
| 1178 diagnostic framework extensions, you must include this file before | |
| 1179 toplev.h, not after. The C front end formats are a subset of those | |
| 1180 for C++, so they are the appropriate set to use in common code; | |
| 1181 cp-tree.h overrides this for C++. */ | |
| 1182 #ifndef GCC_DIAG_STYLE | |
| 1183 #define GCC_DIAG_STYLE __gcc_cdiag__ | |
| 1184 #endif | |
| 1185 | |
| 1186 #endif /* ! GCC_C_COMMON_H */ |