Mercurial > hg > CbC > CbC_gcc
annotate gcc/langhooks.c @ 143:76e1cf5455ef
add cbc_gc test
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Sun, 23 Dec 2018 19:24:05 +0900 |
| parents | 84e7813d76e9 |
| children | 1830386684a0 |
| rev | line source |
|---|---|
| 0 | 1 /* Default language-specific hooks. |
| 131 | 2 Copyright (C) 2001-2018 Free Software Foundation, Inc. |
| 0 | 3 Contributed by Alexandre Oliva <aoliva@redhat.com> |
| 4 | |
| 5 This file is part of GCC. | |
| 6 | |
| 7 GCC is free software; you can redistribute it and/or modify | |
| 8 it under the terms of the GNU General Public License as published by | |
| 9 the Free Software Foundation; either version 3, or (at your option) | |
| 10 any later version. | |
| 11 | |
| 12 GCC is distributed in the hope that it will be useful, | |
| 13 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 GNU General Public License for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with GCC; see the file COPYING3. If not see | |
| 19 <http://www.gnu.org/licenses/>. */ | |
| 20 | |
| 21 #include "config.h" | |
| 22 #include "system.h" | |
| 23 #include "coretypes.h" | |
| 111 | 24 #include "target.h" |
| 0 | 25 #include "rtl.h" |
| 111 | 26 #include "tree.h" |
| 27 #include "timevar.h" | |
| 28 #include "stringpool.h" | |
| 29 #include "diagnostic.h" | |
| 30 #include "intl.h" | |
| 31 #include "toplev.h" | |
| 32 #include "attribs.h" | |
| 33 #include "gimplify.h" | |
| 0 | 34 #include "langhooks.h" |
|
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35 #include "tree-diagnostic.h" |
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36 #include "output.h" |
| 111 | 37 #include "timevar.h" |
| 0 | 38 |
| 39 /* Do nothing; in many cases the default hook. */ | |
| 40 | |
| 41 void | |
| 42 lhd_do_nothing (void) | |
| 43 { | |
| 44 } | |
| 45 | |
| 46 /* Do nothing (tree). */ | |
| 47 | |
| 48 void | |
| 49 lhd_do_nothing_t (tree ARG_UNUSED (t)) | |
| 50 { | |
| 51 } | |
| 52 | |
|
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53 /* Pass through (tree). */ |
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54 tree |
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55 lhd_pass_through_t (tree t) |
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56 { |
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57 return t; |
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58 } |
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59 |
| 0 | 60 /* Do nothing (int, int, int). Return NULL_TREE. */ |
| 61 | |
| 62 tree | |
| 63 lhd_do_nothing_iii_return_null_tree (int ARG_UNUSED (i), | |
| 64 int ARG_UNUSED (j), | |
| 65 int ARG_UNUSED (k)) | |
| 66 { | |
| 67 return NULL_TREE; | |
| 68 } | |
| 69 | |
| 70 /* Do nothing (function). */ | |
| 71 | |
| 72 void | |
| 73 lhd_do_nothing_f (struct function * ARG_UNUSED (f)) | |
| 74 { | |
| 75 } | |
| 76 | |
| 77 /* Do nothing (return NULL_TREE). */ | |
| 78 | |
| 79 tree | |
| 80 lhd_return_null_tree (tree ARG_UNUSED (t)) | |
| 81 { | |
| 82 return NULL_TREE; | |
| 83 } | |
| 84 | |
| 85 /* Do nothing (return NULL_TREE). */ | |
| 86 | |
| 87 tree | |
| 88 lhd_return_null_const_tree (const_tree ARG_UNUSED (t)) | |
| 89 { | |
| 90 return NULL_TREE; | |
| 91 } | |
| 92 | |
| 93 /* The default post options hook. */ | |
| 94 | |
| 95 bool | |
| 96 lhd_post_options (const char ** ARG_UNUSED (pfilename)) | |
| 97 { | |
|
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98 /* Excess precision other than "fast" requires front-end |
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99 support. */ |
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100 flag_excess_precision_cmdline = EXCESS_PRECISION_FAST; |
| 0 | 101 return false; |
| 102 } | |
| 103 | |
| 104 /* Called from by print-tree.c. */ | |
| 105 | |
| 106 void | |
| 107 lhd_print_tree_nothing (FILE * ARG_UNUSED (file), | |
| 108 tree ARG_UNUSED (node), | |
| 109 int ARG_UNUSED (indent)) | |
| 110 { | |
| 111 } | |
| 112 | |
| 111 | 113 /* Called from check_global_declaration. */ |
| 0 | 114 |
| 115 bool | |
| 116 lhd_warn_unused_global_decl (const_tree decl) | |
| 117 { | |
| 111 | 118 /* This is what used to exist in check_global_declaration. Probably |
| 0 | 119 not many of these actually apply to non-C languages. */ |
| 120 | |
| 121 if (TREE_CODE (decl) == FUNCTION_DECL && DECL_DECLARED_INLINE_P (decl)) | |
| 122 return false; | |
| 111 | 123 if (VAR_P (decl) && TREE_READONLY (decl)) |
| 0 | 124 return false; |
| 125 if (DECL_IN_SYSTEM_HEADER (decl)) | |
| 126 return false; | |
| 127 | |
| 128 return true; | |
| 129 } | |
| 130 | |
| 131 /* Set the DECL_ASSEMBLER_NAME for DECL. */ | |
| 132 void | |
| 133 lhd_set_decl_assembler_name (tree decl) | |
| 134 { | |
| 135 tree id; | |
| 136 | |
| 111 | 137 /* set_decl_assembler_name may be called on TYPE_DECL to record ODR |
| 138 name for C++ types. By default types have no ODR names. */ | |
| 139 if (TREE_CODE (decl) == TYPE_DECL) | |
| 140 return; | |
| 141 | |
| 0 | 142 /* The language-independent code should never use the |
| 143 DECL_ASSEMBLER_NAME for lots of DECLs. Only FUNCTION_DECLs and | |
| 144 VAR_DECLs for variables with static storage duration need a real | |
| 145 DECL_ASSEMBLER_NAME. */ | |
| 146 gcc_assert (TREE_CODE (decl) == FUNCTION_DECL | |
| 111 | 147 || (VAR_P (decl) |
| 0 | 148 && (TREE_STATIC (decl) |
| 149 || DECL_EXTERNAL (decl) | |
| 150 || TREE_PUBLIC (decl)))); | |
|
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151 |
| 0 | 152 /* By default, assume the name to use in assembly code is the same |
| 153 as that used in the source language. (That's correct for C, and | |
| 154 GCC used to set DECL_ASSEMBLER_NAME to the same value as | |
| 155 DECL_NAME in build_decl, so this choice provides backwards | |
| 156 compatibility with existing front-ends. This assumption is wrapped | |
| 157 in a target hook, to allow for target-specific modification of the | |
| 158 identifier. | |
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159 |
| 0 | 160 Can't use just the variable's own name for a variable whose scope |
| 161 is less than the whole compilation. Concatenate a distinguishing | |
| 162 number - we use the DECL_UID. */ | |
| 163 | |
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164 if (TREE_PUBLIC (decl) || DECL_FILE_SCOPE_P (decl)) |
| 0 | 165 id = targetm.mangle_decl_assembler_name (decl, DECL_NAME (decl)); |
| 166 else | |
| 167 { | |
| 168 const char *name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
| 169 char *label; | |
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170 |
| 0 | 171 ASM_FORMAT_PRIVATE_NAME (label, name, DECL_UID (decl)); |
| 172 id = get_identifier (label); | |
| 173 } | |
| 131 | 174 |
| 0 | 175 SET_DECL_ASSEMBLER_NAME (decl, id); |
| 131 | 176 } |
| 0 | 177 |
| 131 | 178 /* Forcibly overwrite the DECL_ASSEMBLER_NAME for DECL to NAME. */ |
| 179 void | |
| 180 lhd_overwrite_decl_assembler_name (tree decl, tree name) | |
| 181 { | |
| 182 DECL_ASSEMBLER_NAME_RAW (decl) = name; | |
| 0 | 183 } |
| 184 | |
| 185 /* Type promotion for variable arguments. */ | |
| 186 tree | |
| 187 lhd_type_promotes_to (tree ARG_UNUSED (type)) | |
| 188 { | |
| 189 gcc_unreachable (); | |
| 190 } | |
| 191 | |
| 192 /* Registration of machine- or os-specific builtin types. */ | |
| 193 void | |
| 194 lhd_register_builtin_type (tree ARG_UNUSED (type), | |
| 195 const char * ARG_UNUSED (name)) | |
| 196 { | |
| 197 } | |
| 198 | |
| 199 /* Invalid use of an incomplete type. */ | |
| 200 void | |
| 111 | 201 lhd_incomplete_type_error (location_t ARG_UNUSED (loc), |
| 202 const_tree ARG_UNUSED (value), const_tree type) | |
| 0 | 203 { |
| 204 gcc_assert (TREE_CODE (type) == ERROR_MARK); | |
| 205 return; | |
| 206 } | |
| 207 | |
| 208 /* Provide a default routine for alias sets that always returns -1. This | |
| 209 is used by languages that don't need to do anything special. */ | |
| 210 | |
| 211 alias_set_type | |
| 212 lhd_get_alias_set (tree ARG_UNUSED (t)) | |
| 213 { | |
| 214 return -1; | |
| 215 } | |
| 216 | |
| 217 /* This is the default decl_printable_name function. */ | |
| 218 | |
| 219 const char * | |
| 220 lhd_decl_printable_name (tree decl, int ARG_UNUSED (verbosity)) | |
| 221 { | |
| 222 gcc_assert (decl && DECL_NAME (decl)); | |
| 223 return IDENTIFIER_POINTER (DECL_NAME (decl)); | |
| 224 } | |
| 225 | |
| 226 /* This is the default dwarf_name function. */ | |
| 227 | |
| 228 const char * | |
| 229 lhd_dwarf_name (tree t, int verbosity) | |
| 230 { | |
| 231 gcc_assert (DECL_P (t)); | |
| 232 | |
| 233 return lang_hooks.decl_printable_name (t, verbosity); | |
| 234 } | |
| 235 | |
| 236 /* This compares two types for equivalence ("compatible" in C-based languages). | |
| 237 This routine should only return 1 if it is sure. It should not be used | |
| 238 in contexts where erroneously returning 0 causes problems. */ | |
| 239 | |
| 240 int | |
| 241 lhd_types_compatible_p (tree x, tree y) | |
| 242 { | |
| 243 return TYPE_MAIN_VARIANT (x) == TYPE_MAIN_VARIANT (y); | |
| 244 } | |
| 245 | |
| 246 /* lang_hooks.tree_dump.dump_tree: Dump language-specific parts of tree | |
| 247 nodes. Returns nonzero if it does not want the usual dumping of the | |
| 248 second argument. */ | |
| 249 | |
| 250 bool | |
| 251 lhd_tree_dump_dump_tree (void *di ATTRIBUTE_UNUSED, tree t ATTRIBUTE_UNUSED) | |
| 252 { | |
| 253 return false; | |
| 254 } | |
| 255 | |
| 256 /* lang_hooks.tree_dump.type_qual: Determine type qualifiers in a | |
| 257 language-specific way. */ | |
| 258 | |
| 259 int | |
| 260 lhd_tree_dump_type_quals (const_tree t) | |
| 261 { | |
| 262 return TYPE_QUALS (t); | |
| 263 } | |
| 264 | |
| 265 /* lang_hooks.gimplify_expr re-writes *EXPR_P into GIMPLE form. */ | |
| 266 | |
| 267 int | |
| 268 lhd_gimplify_expr (tree *expr_p ATTRIBUTE_UNUSED, | |
| 269 gimple_seq *pre_p ATTRIBUTE_UNUSED, | |
| 270 gimple_seq *post_p ATTRIBUTE_UNUSED) | |
| 271 { | |
| 272 return GS_UNHANDLED; | |
| 273 } | |
| 274 | |
| 275 /* lang_hooks.tree_size: Determine the size of a tree with code C, | |
| 111 | 276 which is a language-specific tree code in category tcc_constant, |
| 277 tcc_exceptional or tcc_type. The default expects never to be called. */ | |
| 0 | 278 size_t |
| 279 lhd_tree_size (enum tree_code c ATTRIBUTE_UNUSED) | |
| 280 { | |
| 281 gcc_unreachable (); | |
| 282 } | |
| 283 | |
| 284 /* Return true if decl, which is a function decl, may be called by a | |
| 285 sibcall. */ | |
| 286 | |
| 287 bool | |
| 288 lhd_decl_ok_for_sibcall (const_tree decl ATTRIBUTE_UNUSED) | |
| 289 { | |
| 290 return true; | |
| 291 } | |
| 292 | |
| 111 | 293 /* Generic global declaration processing. This is meant to be called |
| 294 by the front-ends at the end of parsing. C/C++ do their own thing, | |
| 295 but other front-ends may call this. */ | |
| 296 | |
| 0 | 297 void |
| 111 | 298 global_decl_processing (void) |
| 0 | 299 { |
|
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300 tree globals, decl, *vec; |
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301 int len, i; |
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302 |
| 111 | 303 timevar_stop (TV_PHASE_PARSING); |
| 304 timevar_start (TV_PHASE_DEFERRED); | |
| 0 | 305 /* Really define vars that have had only a tentative definition. |
| 306 Really output inline functions that must actually be callable | |
| 307 and have not been output so far. */ | |
| 308 | |
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309 globals = lang_hooks.decls.getdecls (); |
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310 len = list_length (globals); |
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311 vec = XNEWVEC (tree, len); |
| 0 | 312 |
| 313 /* Process the decls in reverse order--earliest first. | |
| 314 Put them into VEC from back to front, then take out from front. */ | |
| 315 | |
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316 for (i = 0, decl = globals; i < len; i++, decl = DECL_CHAIN (decl)) |
| 0 | 317 vec[len - i - 1] = decl; |
| 318 | |
| 319 wrapup_global_declarations (vec, len); | |
| 111 | 320 timevar_stop (TV_PHASE_DEFERRED); |
| 0 | 321 |
| 111 | 322 timevar_start (TV_PHASE_PARSING); |
| 0 | 323 free (vec); |
| 324 } | |
| 325 | |
| 326 /* Called to perform language-specific initialization of CTX. */ | |
| 327 void | |
|
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328 lhd_initialize_diagnostics (diagnostic_context *ctx ATTRIBUTE_UNUSED) |
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329 { |
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330 } |
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331 |
| 111 | 332 /* Called to register dumps. */ |
| 333 void | |
| 334 lhd_register_dumps (gcc::dump_manager *) | |
| 335 { | |
| 336 } | |
| 337 | |
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338 /* Called to perform language-specific options initialization. */ |
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339 void |
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340 lhd_init_options (unsigned int decoded_options_count ATTRIBUTE_UNUSED, |
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341 struct cl_decoded_option *decoded_options ATTRIBUTE_UNUSED) |
| 0 | 342 { |
| 343 } | |
| 344 | |
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345 /* By default, always complain about options for the wrong language. */ |
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346 bool |
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347 lhd_complain_wrong_lang_p (const struct cl_option *option ATTRIBUTE_UNUSED) |
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348 { |
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349 return true; |
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350 } |
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351 |
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352 /* By default, no language-specific options are valid. */ |
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353 bool |
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354 lhd_handle_option (size_t code ATTRIBUTE_UNUSED, |
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355 const char *arg ATTRIBUTE_UNUSED, |
| 131 | 356 HOST_WIDE_INT value ATTRIBUTE_UNUSED, |
| 357 int kind ATTRIBUTE_UNUSED, | |
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358 location_t loc ATTRIBUTE_UNUSED, |
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359 const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED) |
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360 { |
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361 return false; |
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362 } |
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363 |
| 0 | 364 /* The default function to print out name of current function that caused |
| 365 an error. */ | |
| 366 void | |
| 367 lhd_print_error_function (diagnostic_context *context, const char *file, | |
| 368 diagnostic_info *diagnostic) | |
| 369 { | |
| 370 if (diagnostic_last_function_changed (context, diagnostic)) | |
| 371 { | |
| 131 | 372 char *old_prefix = pp_take_prefix (context->printer); |
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373 tree abstract_origin = diagnostic_abstract_origin (diagnostic); |
| 0 | 374 char *new_prefix = (file && abstract_origin == NULL) |
| 111 | 375 ? file_name_as_prefix (context, file) : NULL; |
| 0 | 376 |
| 377 pp_set_prefix (context->printer, new_prefix); | |
| 378 | |
| 379 if (current_function_decl == NULL) | |
| 380 pp_printf (context->printer, _("At top level:")); | |
| 381 else | |
| 382 { | |
| 383 tree fndecl, ao; | |
| 384 | |
| 385 if (abstract_origin) | |
| 386 { | |
| 387 ao = BLOCK_ABSTRACT_ORIGIN (abstract_origin); | |
| 388 gcc_assert (TREE_CODE (ao) == FUNCTION_DECL); | |
| 389 fndecl = ao; | |
| 390 } | |
| 391 else | |
| 392 fndecl = current_function_decl; | |
| 393 | |
| 394 if (TREE_CODE (TREE_TYPE (fndecl)) == METHOD_TYPE) | |
| 395 pp_printf | |
| 396 (context->printer, _("In member function %qs"), | |
|
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397 identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2))); |
| 0 | 398 else |
| 399 pp_printf | |
| 400 (context->printer, _("In function %qs"), | |
|
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401 identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2))); |
| 0 | 402 |
| 403 while (abstract_origin) | |
| 404 { | |
| 405 location_t *locus; | |
| 406 tree block = abstract_origin; | |
| 407 | |
| 408 locus = &BLOCK_SOURCE_LOCATION (block); | |
| 409 fndecl = NULL; | |
| 410 block = BLOCK_SUPERCONTEXT (block); | |
| 411 while (block && TREE_CODE (block) == BLOCK | |
| 412 && BLOCK_ABSTRACT_ORIGIN (block)) | |
| 413 { | |
| 414 ao = BLOCK_ABSTRACT_ORIGIN (block); | |
| 415 if (TREE_CODE (ao) == FUNCTION_DECL) | |
| 416 { | |
| 417 fndecl = ao; | |
| 418 break; | |
| 419 } | |
| 420 else if (TREE_CODE (ao) != BLOCK) | |
| 421 break; | |
| 422 | |
| 423 block = BLOCK_SUPERCONTEXT (block); | |
| 424 } | |
| 425 if (fndecl) | |
| 426 abstract_origin = block; | |
| 427 else | |
| 428 { | |
| 429 while (block && TREE_CODE (block) == BLOCK) | |
| 430 block = BLOCK_SUPERCONTEXT (block); | |
| 431 | |
| 432 if (block && TREE_CODE (block) == FUNCTION_DECL) | |
| 433 fndecl = block; | |
| 434 abstract_origin = NULL; | |
| 435 } | |
| 436 if (fndecl) | |
| 437 { | |
| 438 expanded_location s = expand_location (*locus); | |
| 111 | 439 pp_comma (context->printer); |
| 0 | 440 pp_newline (context->printer); |
| 441 if (s.file != NULL) | |
| 442 { | |
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443 if (context->show_column) |
| 0 | 444 pp_printf (context->printer, |
| 111 | 445 _(" inlined from %qs at %r%s:%d:%d%R"), |
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446 identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2)), |
| 111 | 447 "locus", s.file, s.line, s.column); |
| 0 | 448 else |
| 449 pp_printf (context->printer, | |
| 111 | 450 _(" inlined from %qs at %r%s:%d%R"), |
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451 identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2)), |
| 111 | 452 "locus", s.file, s.line); |
| 0 | 453 |
| 454 } | |
| 455 else | |
| 456 pp_printf (context->printer, _(" inlined from %qs"), | |
|
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457 identifier_to_locale (lang_hooks.decl_printable_name (fndecl, 2))); |
| 0 | 458 } |
| 459 } | |
| 111 | 460 pp_colon (context->printer); |
| 0 | 461 } |
| 462 | |
| 463 diagnostic_set_last_function (context, diagnostic); | |
| 111 | 464 pp_newline_and_flush (context->printer); |
| 0 | 465 context->printer->prefix = old_prefix; |
| 466 free ((char*) new_prefix); | |
| 467 } | |
| 468 } | |
| 469 | |
| 470 tree | |
| 471 lhd_make_node (enum tree_code code) | |
| 472 { | |
| 473 return make_node (code); | |
| 474 } | |
| 475 | |
| 111 | 476 /* Default implementation of LANG_HOOKS_TYPE_FOR_SIZE. |
| 477 Return an integer type with PRECISION bits of precision, | |
| 478 that is unsigned if UNSIGNEDP is nonzero, otherwise signed. */ | |
| 479 | |
| 480 tree | |
| 481 lhd_type_for_size (unsigned precision, int unsignedp) | |
| 482 { | |
| 483 int i; | |
| 484 | |
| 485 if (precision == TYPE_PRECISION (integer_type_node)) | |
| 486 return unsignedp ? unsigned_type_node : integer_type_node; | |
| 487 | |
| 488 if (precision == TYPE_PRECISION (signed_char_type_node)) | |
| 489 return unsignedp ? unsigned_char_type_node : signed_char_type_node; | |
| 490 | |
| 491 if (precision == TYPE_PRECISION (short_integer_type_node)) | |
| 492 return unsignedp ? short_unsigned_type_node : short_integer_type_node; | |
| 493 | |
| 494 if (precision == TYPE_PRECISION (long_integer_type_node)) | |
| 495 return unsignedp ? long_unsigned_type_node : long_integer_type_node; | |
| 496 | |
| 497 if (precision == TYPE_PRECISION (long_long_integer_type_node)) | |
| 498 return unsignedp | |
| 499 ? long_long_unsigned_type_node | |
| 500 : long_long_integer_type_node; | |
| 501 | |
| 502 for (i = 0; i < NUM_INT_N_ENTS; i ++) | |
| 503 if (int_n_enabled_p[i] | |
| 504 && precision == int_n_data[i].bitsize) | |
| 505 return (unsignedp ? int_n_trees[i].unsigned_type | |
| 506 : int_n_trees[i].signed_type); | |
| 507 | |
| 508 if (precision <= TYPE_PRECISION (intQI_type_node)) | |
| 509 return unsignedp ? unsigned_intQI_type_node : intQI_type_node; | |
| 510 | |
| 511 if (precision <= TYPE_PRECISION (intHI_type_node)) | |
| 512 return unsignedp ? unsigned_intHI_type_node : intHI_type_node; | |
| 513 | |
| 514 if (precision <= TYPE_PRECISION (intSI_type_node)) | |
| 515 return unsignedp ? unsigned_intSI_type_node : intSI_type_node; | |
| 516 | |
| 517 if (precision <= TYPE_PRECISION (intDI_type_node)) | |
| 518 return unsignedp ? unsigned_intDI_type_node : intDI_type_node; | |
| 519 | |
| 520 if (precision <= TYPE_PRECISION (intTI_type_node)) | |
| 521 return unsignedp ? unsigned_intTI_type_node : intTI_type_node; | |
| 522 | |
| 523 return NULL_TREE; | |
| 524 } | |
| 525 | |
| 0 | 526 HOST_WIDE_INT |
| 527 lhd_to_target_charset (HOST_WIDE_INT c) | |
| 528 { | |
| 529 return c; | |
| 530 } | |
| 531 | |
| 532 tree | |
| 533 lhd_expr_to_decl (tree expr, bool *tc ATTRIBUTE_UNUSED, bool *se ATTRIBUTE_UNUSED) | |
| 534 { | |
| 535 return expr; | |
| 536 } | |
| 537 | |
| 538 /* Return sharing kind if OpenMP sharing attribute of DECL is | |
| 539 predetermined, OMP_CLAUSE_DEFAULT_UNSPECIFIED otherwise. */ | |
| 540 | |
| 541 enum omp_clause_default_kind | |
| 542 lhd_omp_predetermined_sharing (tree decl ATTRIBUTE_UNUSED) | |
| 543 { | |
| 544 if (DECL_ARTIFICIAL (decl)) | |
| 545 return OMP_CLAUSE_DEFAULT_SHARED; | |
| 546 return OMP_CLAUSE_DEFAULT_UNSPECIFIED; | |
| 547 } | |
| 548 | |
| 549 /* Generate code to copy SRC to DST. */ | |
| 550 | |
| 551 tree | |
| 552 lhd_omp_assignment (tree clause ATTRIBUTE_UNUSED, tree dst, tree src) | |
| 553 { | |
| 554 return build2 (MODIFY_EXPR, TREE_TYPE (dst), dst, src); | |
| 555 } | |
| 556 | |
| 111 | 557 /* Finalize clause C. */ |
| 558 | |
| 559 void | |
| 560 lhd_omp_finish_clause (tree, gimple_seq *) | |
| 561 { | |
| 562 } | |
| 563 | |
| 564 /* Return true if DECL is a scalar variable (for the purpose of | |
| 565 implicit firstprivatization). */ | |
| 566 | |
| 567 bool | |
| 568 lhd_omp_scalar_p (tree decl) | |
| 569 { | |
| 570 tree type = TREE_TYPE (decl); | |
| 571 if (TREE_CODE (type) == REFERENCE_TYPE) | |
| 572 type = TREE_TYPE (type); | |
| 573 if (TREE_CODE (type) == COMPLEX_TYPE) | |
| 574 type = TREE_TYPE (type); | |
| 575 if (INTEGRAL_TYPE_P (type) | |
| 576 || SCALAR_FLOAT_TYPE_P (type) | |
| 577 || TREE_CODE (type) == POINTER_TYPE) | |
| 578 return true; | |
| 579 return false; | |
| 580 } | |
| 581 | |
| 0 | 582 /* Register language specific type size variables as potentially OpenMP |
| 583 firstprivate variables. */ | |
| 584 | |
| 585 void | |
| 586 lhd_omp_firstprivatize_type_sizes (struct gimplify_omp_ctx *c ATTRIBUTE_UNUSED, | |
| 587 tree t ATTRIBUTE_UNUSED) | |
| 588 { | |
| 589 } | |
| 590 | |
| 111 | 591 /* Return true if TYPE is an OpenMP mappable type. */ |
| 592 | |
| 593 bool | |
| 594 lhd_omp_mappable_type (tree type) | |
| 595 { | |
| 596 /* Mappable type has to be complete. */ | |
| 597 if (type == error_mark_node || !COMPLETE_TYPE_P (type)) | |
| 598 return false; | |
| 599 return true; | |
| 600 } | |
| 601 | |
| 0 | 602 /* Common function for add_builtin_function and |
| 603 add_builtin_function_ext_scope. */ | |
| 604 static tree | |
| 605 add_builtin_function_common (const char *name, | |
| 606 tree type, | |
| 607 int function_code, | |
| 608 enum built_in_class cl, | |
| 609 const char *library_name, | |
| 610 tree attrs, | |
| 611 tree (*hook) (tree)) | |
| 612 { | |
| 613 tree id = get_identifier (name); | |
|
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614 tree decl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL, id, type); |
| 0 | 615 |
| 616 TREE_PUBLIC (decl) = 1; | |
| 617 DECL_EXTERNAL (decl) = 1; | |
| 618 DECL_BUILT_IN_CLASS (decl) = cl; | |
| 619 | |
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620 DECL_FUNCTION_CODE (decl) = (enum built_in_function) function_code; |
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621 |
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622 /* DECL_FUNCTION_CODE is a bitfield; verify that the value fits. */ |
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623 gcc_assert (DECL_FUNCTION_CODE (decl) == function_code); |
| 0 | 624 |
| 625 if (library_name) | |
| 626 { | |
| 627 tree libname = get_identifier (library_name); | |
| 111 | 628 |
| 629 libname = targetm.mangle_decl_assembler_name (decl, libname); | |
| 0 | 630 SET_DECL_ASSEMBLER_NAME (decl, libname); |
| 631 } | |
| 632 | |
| 633 /* Possibly apply some default attributes to this built-in function. */ | |
| 634 if (attrs) | |
| 635 decl_attributes (&decl, attrs, ATTR_FLAG_BUILT_IN); | |
| 636 else | |
| 637 decl_attributes (&decl, NULL_TREE, 0); | |
| 638 | |
| 639 return hook (decl); | |
| 640 | |
| 641 } | |
| 642 | |
| 643 /* Create a builtin function. */ | |
| 644 | |
| 645 tree | |
| 646 add_builtin_function (const char *name, | |
| 647 tree type, | |
| 648 int function_code, | |
| 649 enum built_in_class cl, | |
| 650 const char *library_name, | |
| 651 tree attrs) | |
| 652 { | |
| 653 return add_builtin_function_common (name, type, function_code, cl, | |
| 654 library_name, attrs, | |
| 655 lang_hooks.builtin_function); | |
| 656 } | |
| 657 | |
| 658 /* Like add_builtin_function, but make sure the scope is the external scope. | |
| 659 This is used to delay putting in back end builtin functions until the ISA | |
| 660 that defines the builtin is declared via function specific target options, | |
| 661 which can save memory for machines like the x86_64 that have multiple ISAs. | |
| 662 If this points to the same function as builtin_function, the backend must | |
| 663 add all of the builtins at program initialization time. */ | |
| 664 | |
| 665 tree | |
| 666 add_builtin_function_ext_scope (const char *name, | |
| 667 tree type, | |
| 668 int function_code, | |
| 669 enum built_in_class cl, | |
| 670 const char *library_name, | |
| 671 tree attrs) | |
| 672 { | |
| 673 return add_builtin_function_common (name, type, function_code, cl, | |
| 674 library_name, attrs, | |
| 675 lang_hooks.builtin_function_ext_scope); | |
| 676 } | |
| 677 | |
| 678 tree | |
| 679 lhd_builtin_function (tree decl) | |
| 680 { | |
| 681 lang_hooks.decls.pushdecl (decl); | |
| 682 return decl; | |
| 683 } | |
|
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684 |
| 111 | 685 /* Create a builtin type. */ |
| 686 | |
| 687 tree | |
| 688 add_builtin_type (const char *name, tree type) | |
| 689 { | |
| 690 tree id = get_identifier (name); | |
| 691 tree decl = build_decl (BUILTINS_LOCATION, TYPE_DECL, id, type); | |
| 692 return lang_hooks.decls.pushdecl (decl); | |
| 693 } | |
| 694 | |
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695 /* LTO hooks. */ |
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696 |
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697 /* Used to save and restore any previously active section. */ |
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698 static section *saved_section; |
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699 |
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700 |
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701 /* Begin a new LTO output section named NAME. This default implementation |
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702 saves the old section and emits assembly code to switch to the new |
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703 section. */ |
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704 |
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705 void |
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706 lhd_begin_section (const char *name) |
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707 { |
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708 section *section; |
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709 |
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710 /* Save the old section so we can restore it in lto_end_asm_section. */ |
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711 gcc_assert (!saved_section); |
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712 saved_section = in_section; |
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713 if (!saved_section) |
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714 saved_section = text_section; |
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715 |
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716 /* Create a new section and switch to it. */ |
| 111 | 717 section = get_section (name, SECTION_DEBUG | SECTION_EXCLUDE, NULL); |
|
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718 switch_to_section (section); |
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719 } |
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720 |
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721 |
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722 /* Write DATA of length LEN to the current LTO output section. This default |
| 111 | 723 implementation just calls assemble_string. */ |
|
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724 |
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725 void |
| 111 | 726 lhd_append_data (const void *data, size_t len, void *) |
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727 { |
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728 if (data) |
| 111 | 729 { |
| 730 timevar_push (TV_IPA_LTO_OUTPUT); | |
| 731 assemble_string ((const char *)data, len); | |
| 732 timevar_pop (TV_IPA_LTO_OUTPUT); | |
| 733 } | |
|
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734 } |
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735 |
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736 |
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737 /* Finish the current LTO output section. This default implementation emits |
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738 assembly code to switch to any section previously saved by |
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739 lhd_begin_section. */ |
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740 |
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741 void |
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742 lhd_end_section (void) |
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743 { |
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744 if (saved_section) |
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745 { |
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746 switch_to_section (saved_section); |
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747 saved_section = NULL; |
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748 } |
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749 } |
| 111 | 750 |
| 751 /* Default implementation of enum_underlying_base_type using type_for_size. */ | |
| 752 | |
| 753 tree | |
| 754 lhd_enum_underlying_base_type (const_tree enum_type) | |
| 755 { | |
| 756 return lang_hooks.types.type_for_size (TYPE_PRECISION (enum_type), | |
| 757 TYPE_UNSIGNED (enum_type)); | |
| 758 } | |
| 759 | |
| 760 /* Default implementation of LANG_HOOKS_GET_SUBSTRING_LOCATION. */ | |
| 761 | |
| 762 const char * | |
| 763 lhd_get_substring_location (const substring_loc &, location_t *) | |
| 764 { | |
| 765 return "unimplemented"; | |
| 766 } | |
| 767 | |
| 768 /* Default implementation of LANG_HOOKS_DECL_DWARF_ATTRIBUTE. Don't add | |
| 769 any attributes. */ | |
| 770 | |
| 771 int | |
| 772 lhd_decl_dwarf_attribute (const_tree, int) | |
| 773 { | |
| 774 return -1; | |
| 775 } | |
| 776 | |
| 777 /* Default implementation of LANG_HOOKS_TYPE_DWARF_ATTRIBUTE. Don't add | |
| 778 any attributes. */ | |
| 779 | |
| 780 int | |
| 781 lhd_type_dwarf_attribute (const_tree, int) | |
| 782 { | |
| 783 return -1; | |
| 784 } | |
| 785 | |
| 786 /* Default implementation of LANG_HOOKS_UNIT_SIZE_WITHOUT_REUSABLE_PADDING. | |
| 787 Just return TYPE_SIZE_UNIT unadjusted. */ | |
| 788 | |
| 789 tree | |
| 790 lhd_unit_size_without_reusable_padding (tree t) | |
| 791 { | |
| 792 return TYPE_SIZE_UNIT (t); | |
| 793 } | |
| 794 | |
| 795 /* Returns true if the current lang_hooks represents the GNU C frontend. */ | |
| 796 | |
| 797 bool | |
| 798 lang_GNU_C (void) | |
| 799 { | |
| 800 return (strncmp (lang_hooks.name, "GNU C", 5) == 0 | |
| 801 && (lang_hooks.name[5] == '\0' || ISDIGIT (lang_hooks.name[5]))); | |
| 802 } | |
| 803 | |
| 804 /* Returns true if the current lang_hooks represents the GNU C++ frontend. */ | |
| 805 | |
| 806 bool | |
| 807 lang_GNU_CXX (void) | |
| 808 { | |
| 809 return strncmp (lang_hooks.name, "GNU C++", 7) == 0; | |
| 810 } | |
| 811 | |
| 812 /* Returns true if the current lang_hooks represents the GNU Fortran frontend. */ | |
| 813 | |
| 814 bool | |
| 815 lang_GNU_Fortran (void) | |
| 816 { | |
| 817 return strncmp (lang_hooks.name, "GNU Fortran", 11) == 0; | |
| 818 } | |
| 819 | |
| 820 /* Returns true if the current lang_hooks represents the GNU Objective-C | |
| 821 frontend. */ | |
| 822 | |
| 823 bool | |
| 824 lang_GNU_OBJC (void) | |
| 825 { | |
| 826 return strncmp (lang_hooks.name, "GNU Objective-C", 15) == 0; | |
| 827 } |