Mercurial > hg > CbC > CbC_gcc
annotate gcc/cgraph.c @ 67:f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
| author | nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 22 Mar 2011 17:18:12 +0900 |
| parents | b7f97abdc517 |
| children | 04ced10e8804 |
| rev | line source |
|---|---|
| 0 | 1 /* Callgraph handling code. |
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2 Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
| 0 | 3 Free Software Foundation, Inc. |
| 4 Contributed by Jan Hubicka | |
| 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 /* This file contains basic routines manipulating call graph | |
| 23 | |
| 24 The callgraph: | |
| 25 | |
| 26 The call-graph is data structure designed for intra-procedural optimization | |
| 27 but it is also used in non-unit-at-a-time compilation to allow easier code | |
| 28 sharing. | |
| 29 | |
| 30 The call-graph consist of nodes and edges represented via linked lists. | |
| 31 Each function (external or not) corresponds to the unique node. | |
| 32 | |
| 33 The mapping from declarations to call-graph nodes is done using hash table | |
| 34 based on DECL_UID. The call-graph nodes are created lazily using | |
| 35 cgraph_node function when called for unknown declaration. | |
| 36 | |
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37 The callgraph at the moment does not represent all indirect calls or calls |
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38 from other compilation units. Flag NEEDED is set for each node that may be |
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39 accessed in such an invisible way and it shall be considered an entry point |
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40 to the callgraph. |
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41 |
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42 On the other hand, the callgraph currently does contain some edges for |
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43 indirect calls with unknown callees which can be accessed through |
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44 indirect_calls field of a node. It should be noted however that at the |
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45 moment only calls which are potential candidates for indirect inlining are |
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46 added there. |
| 0 | 47 |
| 48 Interprocedural information: | |
| 49 | |
| 50 Callgraph is place to store data needed for interprocedural optimization. | |
| 51 All data structures are divided into three components: local_info that | |
| 52 is produced while analyzing the function, global_info that is result | |
| 53 of global walking of the callgraph on the end of compilation and | |
| 54 rtl_info used by RTL backend to propagate data from already compiled | |
| 55 functions to their callers. | |
| 56 | |
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57 Moreover, each node has a uid which can be used to keep information in |
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58 on-the-side arrays. UIDs are reused and therefore reasonably dense. |
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59 |
| 0 | 60 Inlining plans: |
| 61 | |
| 62 The function inlining information is decided in advance and maintained | |
| 63 in the callgraph as so called inline plan. | |
| 64 For each inlined call, the callee's node is cloned to represent the | |
| 65 new function copy produced by inliner. | |
| 66 Each inlined call gets a unique corresponding clone node of the callee | |
| 67 and the data structure is updated while inlining is performed, so | |
| 68 the clones are eliminated and their callee edges redirected to the | |
| 69 caller. | |
| 70 | |
| 71 Each edge has "inline_failed" field. When the field is set to NULL, | |
| 72 the call will be inlined. When it is non-NULL it contains a reason | |
| 73 why inlining wasn't performed. */ | |
| 74 | |
| 75 #include "config.h" | |
| 76 #include "system.h" | |
| 77 #include "coretypes.h" | |
| 78 #include "tm.h" | |
| 79 #include "tree.h" | |
| 80 #include "tree-inline.h" | |
| 81 #include "langhooks.h" | |
| 82 #include "hashtab.h" | |
| 83 #include "toplev.h" | |
| 84 #include "flags.h" | |
| 85 #include "ggc.h" | |
| 86 #include "debug.h" | |
| 87 #include "target.h" | |
| 88 #include "basic-block.h" | |
| 89 #include "cgraph.h" | |
| 90 #include "output.h" | |
| 91 #include "intl.h" | |
| 92 #include "gimple.h" | |
| 93 #include "tree-dump.h" | |
| 94 #include "tree-flow.h" | |
| 95 #include "value-prof.h" | |
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96 #include "except.h" |
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97 #include "diagnostic-core.h" |
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98 #include "rtl.h" |
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99 #include "ipa-utils.h" |
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100 #include "lto-streamer.h" |
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101 |
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102 const char * const ld_plugin_symbol_resolution_names[]= |
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103 { |
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104 "", |
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105 "undef", |
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106 "prevailing_def", |
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107 "prevailing_def_ironly", |
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108 "preempted_reg", |
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109 "preempted_ir", |
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110 "resolved_ir", |
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111 "resolved_exec", |
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112 "resolved_dyn" |
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113 }; |
| 0 | 114 |
| 115 static void cgraph_node_remove_callers (struct cgraph_node *node); | |
| 116 static inline void cgraph_edge_remove_caller (struct cgraph_edge *e); | |
| 117 static inline void cgraph_edge_remove_callee (struct cgraph_edge *e); | |
| 118 | |
| 119 /* Hash table used to convert declarations into nodes. */ | |
| 120 static GTY((param_is (struct cgraph_node))) htab_t cgraph_hash; | |
| 121 /* Hash table used to convert assembler names into nodes. */ | |
| 122 static GTY((param_is (struct cgraph_node))) htab_t assembler_name_hash; | |
| 123 | |
| 124 /* The linked list of cgraph nodes. */ | |
| 125 struct cgraph_node *cgraph_nodes; | |
| 126 | |
| 127 /* Queue of cgraph nodes scheduled to be lowered. */ | |
| 128 struct cgraph_node *cgraph_nodes_queue; | |
| 129 | |
| 130 /* Queue of cgraph nodes scheduled to be added into cgraph. This is a | |
| 131 secondary queue used during optimization to accommodate passes that | |
| 132 may generate new functions that need to be optimized and expanded. */ | |
| 133 struct cgraph_node *cgraph_new_nodes; | |
| 134 | |
| 135 /* Number of nodes in existence. */ | |
| 136 int cgraph_n_nodes; | |
| 137 | |
| 138 /* Maximal uid used in cgraph nodes. */ | |
| 139 int cgraph_max_uid; | |
| 140 | |
| 141 /* Maximal uid used in cgraph edges. */ | |
| 142 int cgraph_edge_max_uid; | |
| 143 | |
| 144 /* Maximal pid used for profiling */ | |
| 145 int cgraph_max_pid; | |
| 146 | |
| 147 /* Set when whole unit has been analyzed so we can access global info. */ | |
| 148 bool cgraph_global_info_ready = false; | |
| 149 | |
| 150 /* What state callgraph is in right now. */ | |
| 151 enum cgraph_state cgraph_state = CGRAPH_STATE_CONSTRUCTION; | |
| 152 | |
| 153 /* Set when the cgraph is fully build and the basic flags are computed. */ | |
| 154 bool cgraph_function_flags_ready = false; | |
| 155 | |
| 156 /* Linked list of cgraph asm nodes. */ | |
| 157 struct cgraph_asm_node *cgraph_asm_nodes; | |
| 158 | |
| 159 /* Last node in cgraph_asm_nodes. */ | |
| 160 static GTY(()) struct cgraph_asm_node *cgraph_asm_last_node; | |
| 161 | |
| 162 /* The order index of the next cgraph node to be created. This is | |
| 163 used so that we can sort the cgraph nodes in order by when we saw | |
| 164 them, to support -fno-toplevel-reorder. */ | |
| 165 int cgraph_order; | |
| 166 | |
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167 /* List of hooks triggered on cgraph_edge events. */ |
| 0 | 168 struct cgraph_edge_hook_list { |
| 169 cgraph_edge_hook hook; | |
| 170 void *data; | |
| 171 struct cgraph_edge_hook_list *next; | |
| 172 }; | |
| 173 | |
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174 /* List of hooks triggered on cgraph_node events. */ |
| 0 | 175 struct cgraph_node_hook_list { |
| 176 cgraph_node_hook hook; | |
| 177 void *data; | |
| 178 struct cgraph_node_hook_list *next; | |
| 179 }; | |
| 180 | |
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181 /* List of hooks triggered on events involving two cgraph_edges. */ |
| 0 | 182 struct cgraph_2edge_hook_list { |
| 183 cgraph_2edge_hook hook; | |
| 184 void *data; | |
| 185 struct cgraph_2edge_hook_list *next; | |
| 186 }; | |
| 187 | |
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188 /* List of hooks triggered on events involving two cgraph_nodes. */ |
| 0 | 189 struct cgraph_2node_hook_list { |
| 190 cgraph_2node_hook hook; | |
| 191 void *data; | |
| 192 struct cgraph_2node_hook_list *next; | |
| 193 }; | |
| 194 | |
| 195 /* List of hooks triggered when an edge is removed. */ | |
| 196 struct cgraph_edge_hook_list *first_cgraph_edge_removal_hook; | |
| 197 /* List of hooks triggered when a node is removed. */ | |
| 198 struct cgraph_node_hook_list *first_cgraph_node_removal_hook; | |
| 199 /* List of hooks triggered when an edge is duplicated. */ | |
| 200 struct cgraph_2edge_hook_list *first_cgraph_edge_duplicated_hook; | |
| 201 /* List of hooks triggered when a node is duplicated. */ | |
| 202 struct cgraph_2node_hook_list *first_cgraph_node_duplicated_hook; | |
| 203 /* List of hooks triggered when an function is inserted. */ | |
| 204 struct cgraph_node_hook_list *first_cgraph_function_insertion_hook; | |
| 205 | |
| 206 /* Head of a linked list of unused (freed) call graph nodes. | |
| 207 Do not GTY((delete)) this list so UIDs gets reliably recycled. */ | |
| 208 static GTY(()) struct cgraph_node *free_nodes; | |
| 209 /* Head of a linked list of unused (freed) call graph edges. | |
| 210 Do not GTY((delete)) this list so UIDs gets reliably recycled. */ | |
| 211 static GTY(()) struct cgraph_edge *free_edges; | |
| 212 | |
| 213 /* Macros to access the next item in the list of free cgraph nodes and | |
| 214 edges. */ | |
| 215 #define NEXT_FREE_NODE(NODE) (NODE)->next | |
| 216 #define NEXT_FREE_EDGE(EDGE) (EDGE)->prev_caller | |
| 217 | |
| 218 /* Register HOOK to be called with DATA on each removed edge. */ | |
| 219 struct cgraph_edge_hook_list * | |
| 220 cgraph_add_edge_removal_hook (cgraph_edge_hook hook, void *data) | |
| 221 { | |
| 222 struct cgraph_edge_hook_list *entry; | |
| 223 struct cgraph_edge_hook_list **ptr = &first_cgraph_edge_removal_hook; | |
| 224 | |
| 225 entry = (struct cgraph_edge_hook_list *) xmalloc (sizeof (*entry)); | |
| 226 entry->hook = hook; | |
| 227 entry->data = data; | |
| 228 entry->next = NULL; | |
| 229 while (*ptr) | |
| 230 ptr = &(*ptr)->next; | |
| 231 *ptr = entry; | |
| 232 return entry; | |
| 233 } | |
| 234 | |
| 235 /* Remove ENTRY from the list of hooks called on removing edges. */ | |
| 236 void | |
| 237 cgraph_remove_edge_removal_hook (struct cgraph_edge_hook_list *entry) | |
| 238 { | |
| 239 struct cgraph_edge_hook_list **ptr = &first_cgraph_edge_removal_hook; | |
| 240 | |
| 241 while (*ptr != entry) | |
| 242 ptr = &(*ptr)->next; | |
| 243 *ptr = entry->next; | |
| 244 free (entry); | |
| 245 } | |
| 246 | |
| 247 /* Call all edge removal hooks. */ | |
| 248 static void | |
| 249 cgraph_call_edge_removal_hooks (struct cgraph_edge *e) | |
| 250 { | |
| 251 struct cgraph_edge_hook_list *entry = first_cgraph_edge_removal_hook; | |
| 252 while (entry) | |
| 253 { | |
| 254 entry->hook (e, entry->data); | |
| 255 entry = entry->next; | |
| 256 } | |
| 257 } | |
| 258 | |
| 259 /* Register HOOK to be called with DATA on each removed node. */ | |
| 260 struct cgraph_node_hook_list * | |
| 261 cgraph_add_node_removal_hook (cgraph_node_hook hook, void *data) | |
| 262 { | |
| 263 struct cgraph_node_hook_list *entry; | |
| 264 struct cgraph_node_hook_list **ptr = &first_cgraph_node_removal_hook; | |
| 265 | |
| 266 entry = (struct cgraph_node_hook_list *) xmalloc (sizeof (*entry)); | |
| 267 entry->hook = hook; | |
| 268 entry->data = data; | |
| 269 entry->next = NULL; | |
| 270 while (*ptr) | |
| 271 ptr = &(*ptr)->next; | |
| 272 *ptr = entry; | |
| 273 return entry; | |
| 274 } | |
| 275 | |
| 276 /* Remove ENTRY from the list of hooks called on removing nodes. */ | |
| 277 void | |
| 278 cgraph_remove_node_removal_hook (struct cgraph_node_hook_list *entry) | |
| 279 { | |
| 280 struct cgraph_node_hook_list **ptr = &first_cgraph_node_removal_hook; | |
| 281 | |
| 282 while (*ptr != entry) | |
| 283 ptr = &(*ptr)->next; | |
| 284 *ptr = entry->next; | |
| 285 free (entry); | |
| 286 } | |
| 287 | |
| 288 /* Call all node removal hooks. */ | |
| 289 static void | |
| 290 cgraph_call_node_removal_hooks (struct cgraph_node *node) | |
| 291 { | |
| 292 struct cgraph_node_hook_list *entry = first_cgraph_node_removal_hook; | |
| 293 while (entry) | |
| 294 { | |
| 295 entry->hook (node, entry->data); | |
| 296 entry = entry->next; | |
| 297 } | |
| 298 } | |
| 299 | |
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300 /* Register HOOK to be called with DATA on each inserted node. */ |
| 0 | 301 struct cgraph_node_hook_list * |
| 302 cgraph_add_function_insertion_hook (cgraph_node_hook hook, void *data) | |
| 303 { | |
| 304 struct cgraph_node_hook_list *entry; | |
| 305 struct cgraph_node_hook_list **ptr = &first_cgraph_function_insertion_hook; | |
| 306 | |
| 307 entry = (struct cgraph_node_hook_list *) xmalloc (sizeof (*entry)); | |
| 308 entry->hook = hook; | |
| 309 entry->data = data; | |
| 310 entry->next = NULL; | |
| 311 while (*ptr) | |
| 312 ptr = &(*ptr)->next; | |
| 313 *ptr = entry; | |
| 314 return entry; | |
| 315 } | |
| 316 | |
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317 /* Remove ENTRY from the list of hooks called on inserted nodes. */ |
| 0 | 318 void |
| 319 cgraph_remove_function_insertion_hook (struct cgraph_node_hook_list *entry) | |
| 320 { | |
| 321 struct cgraph_node_hook_list **ptr = &first_cgraph_function_insertion_hook; | |
| 322 | |
| 323 while (*ptr != entry) | |
| 324 ptr = &(*ptr)->next; | |
| 325 *ptr = entry->next; | |
| 326 free (entry); | |
| 327 } | |
| 328 | |
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329 /* Call all node insertion hooks. */ |
| 0 | 330 void |
| 331 cgraph_call_function_insertion_hooks (struct cgraph_node *node) | |
| 332 { | |
| 333 struct cgraph_node_hook_list *entry = first_cgraph_function_insertion_hook; | |
| 334 while (entry) | |
| 335 { | |
| 336 entry->hook (node, entry->data); | |
| 337 entry = entry->next; | |
| 338 } | |
| 339 } | |
| 340 | |
| 341 /* Register HOOK to be called with DATA on each duplicated edge. */ | |
| 342 struct cgraph_2edge_hook_list * | |
| 343 cgraph_add_edge_duplication_hook (cgraph_2edge_hook hook, void *data) | |
| 344 { | |
| 345 struct cgraph_2edge_hook_list *entry; | |
| 346 struct cgraph_2edge_hook_list **ptr = &first_cgraph_edge_duplicated_hook; | |
| 347 | |
| 348 entry = (struct cgraph_2edge_hook_list *) xmalloc (sizeof (*entry)); | |
| 349 entry->hook = hook; | |
| 350 entry->data = data; | |
| 351 entry->next = NULL; | |
| 352 while (*ptr) | |
| 353 ptr = &(*ptr)->next; | |
| 354 *ptr = entry; | |
| 355 return entry; | |
| 356 } | |
| 357 | |
| 358 /* Remove ENTRY from the list of hooks called on duplicating edges. */ | |
| 359 void | |
| 360 cgraph_remove_edge_duplication_hook (struct cgraph_2edge_hook_list *entry) | |
| 361 { | |
| 362 struct cgraph_2edge_hook_list **ptr = &first_cgraph_edge_duplicated_hook; | |
| 363 | |
| 364 while (*ptr != entry) | |
| 365 ptr = &(*ptr)->next; | |
| 366 *ptr = entry->next; | |
| 367 free (entry); | |
| 368 } | |
| 369 | |
| 370 /* Call all edge duplication hooks. */ | |
| 371 static void | |
| 372 cgraph_call_edge_duplication_hooks (struct cgraph_edge *cs1, | |
| 373 struct cgraph_edge *cs2) | |
| 374 { | |
| 375 struct cgraph_2edge_hook_list *entry = first_cgraph_edge_duplicated_hook; | |
| 376 while (entry) | |
| 377 { | |
| 378 entry->hook (cs1, cs2, entry->data); | |
| 379 entry = entry->next; | |
| 380 } | |
| 381 } | |
| 382 | |
| 383 /* Register HOOK to be called with DATA on each duplicated node. */ | |
| 384 struct cgraph_2node_hook_list * | |
| 385 cgraph_add_node_duplication_hook (cgraph_2node_hook hook, void *data) | |
| 386 { | |
| 387 struct cgraph_2node_hook_list *entry; | |
| 388 struct cgraph_2node_hook_list **ptr = &first_cgraph_node_duplicated_hook; | |
| 389 | |
| 390 entry = (struct cgraph_2node_hook_list *) xmalloc (sizeof (*entry)); | |
| 391 entry->hook = hook; | |
| 392 entry->data = data; | |
| 393 entry->next = NULL; | |
| 394 while (*ptr) | |
| 395 ptr = &(*ptr)->next; | |
| 396 *ptr = entry; | |
| 397 return entry; | |
| 398 } | |
| 399 | |
| 400 /* Remove ENTRY from the list of hooks called on duplicating nodes. */ | |
| 401 void | |
| 402 cgraph_remove_node_duplication_hook (struct cgraph_2node_hook_list *entry) | |
| 403 { | |
| 404 struct cgraph_2node_hook_list **ptr = &first_cgraph_node_duplicated_hook; | |
| 405 | |
| 406 while (*ptr != entry) | |
| 407 ptr = &(*ptr)->next; | |
| 408 *ptr = entry->next; | |
| 409 free (entry); | |
| 410 } | |
| 411 | |
| 412 /* Call all node duplication hooks. */ | |
| 413 static void | |
| 414 cgraph_call_node_duplication_hooks (struct cgraph_node *node1, | |
| 415 struct cgraph_node *node2) | |
| 416 { | |
| 417 struct cgraph_2node_hook_list *entry = first_cgraph_node_duplicated_hook; | |
| 418 while (entry) | |
| 419 { | |
| 420 entry->hook (node1, node2, entry->data); | |
| 421 entry = entry->next; | |
| 422 } | |
| 423 } | |
| 424 | |
| 425 /* Returns a hash code for P. */ | |
| 426 | |
| 427 static hashval_t | |
| 428 hash_node (const void *p) | |
| 429 { | |
| 430 const struct cgraph_node *n = (const struct cgraph_node *) p; | |
| 431 return (hashval_t) DECL_UID (n->decl); | |
| 432 } | |
| 433 | |
|
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434 |
| 0 | 435 /* Returns nonzero if P1 and P2 are equal. */ |
| 436 | |
| 437 static int | |
| 438 eq_node (const void *p1, const void *p2) | |
| 439 { | |
| 440 const struct cgraph_node *n1 = (const struct cgraph_node *) p1; | |
| 441 const struct cgraph_node *n2 = (const struct cgraph_node *) p2; | |
| 442 return DECL_UID (n1->decl) == DECL_UID (n2->decl); | |
| 443 } | |
| 444 | |
|
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445 /* Allocate new callgraph node. */ |
| 0 | 446 |
|
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447 static inline struct cgraph_node * |
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448 cgraph_allocate_node (void) |
| 0 | 449 { |
| 450 struct cgraph_node *node; | |
| 451 | |
| 452 if (free_nodes) | |
| 453 { | |
| 454 node = free_nodes; | |
| 455 free_nodes = NEXT_FREE_NODE (node); | |
| 456 } | |
| 457 else | |
| 458 { | |
|
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459 node = ggc_alloc_cleared_cgraph_node (); |
| 0 | 460 node->uid = cgraph_max_uid++; |
| 461 } | |
| 462 | |
|
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463 return node; |
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464 } |
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465 |
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466 /* Allocate new callgraph node and insert it into basic data structures. */ |
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467 |
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468 static struct cgraph_node * |
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469 cgraph_create_node (void) |
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470 { |
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471 struct cgraph_node *node = cgraph_allocate_node (); |
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472 |
| 0 | 473 node->next = cgraph_nodes; |
| 474 node->pid = -1; | |
| 475 node->order = cgraph_order++; | |
| 476 if (cgraph_nodes) | |
| 477 cgraph_nodes->previous = node; | |
| 478 node->previous = NULL; | |
| 479 node->global.estimated_growth = INT_MIN; | |
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480 node->frequency = NODE_FREQUENCY_NORMAL; |
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481 node->count_materialization_scale = REG_BR_PROB_BASE; |
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482 ipa_empty_ref_list (&node->ref_list); |
| 0 | 483 cgraph_nodes = node; |
| 484 cgraph_n_nodes++; | |
| 485 return node; | |
| 486 } | |
| 487 | |
| 488 /* Return cgraph node assigned to DECL. Create new one when needed. */ | |
| 489 | |
| 490 struct cgraph_node * | |
| 491 cgraph_node (tree decl) | |
| 492 { | |
| 493 struct cgraph_node key, *node, **slot; | |
| 494 | |
| 495 gcc_assert (TREE_CODE (decl) == FUNCTION_DECL); | |
| 496 | |
| 497 if (!cgraph_hash) | |
| 498 cgraph_hash = htab_create_ggc (10, hash_node, eq_node, NULL); | |
| 499 | |
| 500 key.decl = decl; | |
| 501 | |
| 502 slot = (struct cgraph_node **) htab_find_slot (cgraph_hash, &key, INSERT); | |
| 503 | |
| 504 if (*slot) | |
| 505 { | |
| 506 node = *slot; | |
|
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507 if (node->same_body_alias) |
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508 node = node->same_body; |
| 0 | 509 return node; |
| 510 } | |
| 511 | |
| 512 node = cgraph_create_node (); | |
| 513 node->decl = decl; | |
| 514 *slot = node; | |
| 515 if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == FUNCTION_DECL) | |
| 516 { | |
| 517 node->origin = cgraph_node (DECL_CONTEXT (decl)); | |
| 518 node->next_nested = node->origin->nested; | |
| 519 node->origin->nested = node; | |
| 520 } | |
| 521 if (assembler_name_hash) | |
| 522 { | |
| 523 void **aslot; | |
| 524 tree name = DECL_ASSEMBLER_NAME (decl); | |
| 525 | |
| 526 aslot = htab_find_slot_with_hash (assembler_name_hash, name, | |
| 527 decl_assembler_name_hash (name), | |
| 528 INSERT); | |
| 529 /* We can have multiple declarations with same assembler name. For C++ | |
| 530 it is __builtin_strlen and strlen, for instance. Do we need to | |
| 531 record them all? Original implementation marked just first one | |
| 532 so lets hope for the best. */ | |
| 533 if (*aslot == NULL) | |
| 534 *aslot = node; | |
| 535 } | |
| 536 return node; | |
| 537 } | |
| 538 | |
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539 /* Mark ALIAS as an alias to DECL. DECL_NODE is cgraph node representing |
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540 the function body is associated with (not neccesarily cgraph_node (DECL). */ |
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541 |
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542 static struct cgraph_node * |
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543 cgraph_same_body_alias_1 (struct cgraph_node *decl_node, tree alias, tree decl) |
|
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544 { |
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545 struct cgraph_node key, *alias_node, **slot; |
|
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546 |
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547 gcc_assert (TREE_CODE (decl) == FUNCTION_DECL); |
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548 gcc_assert (TREE_CODE (alias) == FUNCTION_DECL); |
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549 |
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550 key.decl = alias; |
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551 |
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552 slot = (struct cgraph_node **) htab_find_slot (cgraph_hash, &key, INSERT); |
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553 |
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554 /* If the cgraph_node has been already created, fail. */ |
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555 if (*slot) |
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556 return NULL; |
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557 |
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558 alias_node = cgraph_allocate_node (); |
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559 alias_node->decl = alias; |
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560 alias_node->same_body_alias = 1; |
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561 alias_node->same_body = decl_node; |
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562 alias_node->previous = NULL; |
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563 if (decl_node->same_body) |
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564 decl_node->same_body->previous = alias_node; |
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565 alias_node->next = decl_node->same_body; |
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566 alias_node->thunk.alias = decl; |
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567 decl_node->same_body = alias_node; |
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568 *slot = alias_node; |
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569 return alias_node; |
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570 } |
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571 |
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572 /* Attempt to mark ALIAS as an alias to DECL. Return alias node if successful |
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573 and NULL otherwise. |
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574 Same body aliases are output whenever the body of DECL is output, |
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575 and cgraph_node (ALIAS) transparently returns cgraph_node (DECL). */ |
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576 |
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577 struct cgraph_node * |
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578 cgraph_same_body_alias (struct cgraph_node *decl_node, tree alias, tree decl) |
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579 { |
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580 #ifndef ASM_OUTPUT_DEF |
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581 /* If aliases aren't supported by the assembler, fail. */ |
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582 return NULL; |
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583 #endif |
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584 |
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585 /*gcc_assert (!assembler_name_hash);*/ |
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586 |
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587 return cgraph_same_body_alias_1 (decl_node, alias, decl); |
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588 } |
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589 |
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590 /* Add thunk alias into callgraph. The alias declaration is ALIAS and it |
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591 aliases DECL with an adjustments made into the first parameter. |
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592 See comments in thunk_adjust for detail on the parameters. */ |
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593 |
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594 struct cgraph_node * |
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595 cgraph_add_thunk (struct cgraph_node *decl_node, tree alias, tree decl, |
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596 bool this_adjusting, |
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597 HOST_WIDE_INT fixed_offset, HOST_WIDE_INT virtual_value, |
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598 tree virtual_offset, |
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599 tree real_alias) |
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600 { |
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601 struct cgraph_node *node = cgraph_get_node (alias); |
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602 |
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603 if (node) |
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604 { |
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605 gcc_assert (node->local.finalized); |
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606 gcc_assert (!node->same_body); |
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607 cgraph_remove_node (node); |
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608 } |
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609 |
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610 node = cgraph_same_body_alias_1 (decl_node, alias, decl); |
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611 gcc_assert (node); |
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612 gcc_checking_assert (!virtual_offset |
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613 || tree_int_cst_equal (virtual_offset, |
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614 size_int (virtual_value))); |
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615 node->thunk.fixed_offset = fixed_offset; |
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616 node->thunk.this_adjusting = this_adjusting; |
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617 node->thunk.virtual_value = virtual_value; |
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618 node->thunk.virtual_offset_p = virtual_offset != NULL; |
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619 node->thunk.alias = real_alias; |
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620 node->thunk.thunk_p = true; |
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621 return node; |
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622 } |
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623 |
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624 /* Returns the cgraph node assigned to DECL or NULL if no cgraph node |
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625 is assigned. */ |
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626 |
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627 struct cgraph_node * |
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628 cgraph_get_node_or_alias (const_tree decl) |
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629 { |
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630 struct cgraph_node key, *node = NULL, **slot; |
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631 |
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632 gcc_assert (TREE_CODE (decl) == FUNCTION_DECL); |
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633 |
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634 if (!cgraph_hash) |
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635 return NULL; |
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636 |
|
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637 key.decl = CONST_CAST2 (tree, const_tree, decl); |
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638 |
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639 slot = (struct cgraph_node **) htab_find_slot (cgraph_hash, &key, |
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640 NO_INSERT); |
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641 |
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642 if (slot && *slot) |
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643 node = *slot; |
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644 return node; |
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645 } |
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646 |
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647 /* Returns the cgraph node assigned to DECL or NULL if no cgraph node |
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648 is assigned. */ |
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649 |
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650 struct cgraph_node * |
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651 cgraph_get_node (const_tree decl) |
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652 { |
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653 struct cgraph_node key, *node = NULL, **slot; |
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654 |
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655 gcc_assert (TREE_CODE (decl) == FUNCTION_DECL); |
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656 |
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657 if (!cgraph_hash) |
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658 return NULL; |
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|
659 |
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660 key.decl = CONST_CAST2 (tree, const_tree, decl); |
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661 |
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662 slot = (struct cgraph_node **) htab_find_slot (cgraph_hash, &key, |
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663 NO_INSERT); |
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664 |
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665 if (slot && *slot) |
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666 { |
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667 node = *slot; |
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668 if (node->same_body_alias) |
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669 node = node->same_body; |
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670 } |
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671 return node; |
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672 } |
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673 |
| 0 | 674 /* Insert already constructed node into hashtable. */ |
| 675 | |
| 676 void | |
| 677 cgraph_insert_node_to_hashtable (struct cgraph_node *node) | |
| 678 { | |
| 679 struct cgraph_node **slot; | |
| 680 | |
| 681 slot = (struct cgraph_node **) htab_find_slot (cgraph_hash, node, INSERT); | |
| 682 | |
| 683 gcc_assert (!*slot); | |
| 684 *slot = node; | |
| 685 } | |
| 686 | |
| 687 /* Returns a hash code for P. */ | |
| 688 | |
| 689 static hashval_t | |
| 690 hash_node_by_assembler_name (const void *p) | |
| 691 { | |
| 692 const struct cgraph_node *n = (const struct cgraph_node *) p; | |
| 693 return (hashval_t) decl_assembler_name_hash (DECL_ASSEMBLER_NAME (n->decl)); | |
| 694 } | |
| 695 | |
| 696 /* Returns nonzero if P1 and P2 are equal. */ | |
| 697 | |
| 698 static int | |
| 699 eq_assembler_name (const void *p1, const void *p2) | |
| 700 { | |
| 701 const struct cgraph_node *n1 = (const struct cgraph_node *) p1; | |
| 702 const_tree name = (const_tree)p2; | |
| 703 return (decl_assembler_name_equal (n1->decl, name)); | |
| 704 } | |
| 705 | |
| 706 /* Return the cgraph node that has ASMNAME for its DECL_ASSEMBLER_NAME. | |
| 707 Return NULL if there's no such node. */ | |
| 708 | |
| 709 struct cgraph_node * | |
| 710 cgraph_node_for_asm (tree asmname) | |
| 711 { | |
| 712 struct cgraph_node *node; | |
| 713 void **slot; | |
| 714 | |
| 715 if (!assembler_name_hash) | |
| 716 { | |
| 717 assembler_name_hash = | |
| 718 htab_create_ggc (10, hash_node_by_assembler_name, eq_assembler_name, | |
| 719 NULL); | |
| 720 for (node = cgraph_nodes; node; node = node->next) | |
| 721 if (!node->global.inlined_to) | |
| 722 { | |
| 723 tree name = DECL_ASSEMBLER_NAME (node->decl); | |
| 724 slot = htab_find_slot_with_hash (assembler_name_hash, name, | |
| 725 decl_assembler_name_hash (name), | |
| 726 INSERT); | |
| 727 /* We can have multiple declarations with same assembler name. For C++ | |
| 728 it is __builtin_strlen and strlen, for instance. Do we need to | |
| 729 record them all? Original implementation marked just first one | |
| 730 so lets hope for the best. */ | |
|
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731 if (!*slot) |
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732 *slot = node; |
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733 if (node->same_body) |
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734 { |
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735 struct cgraph_node *alias; |
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736 |
|
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737 for (alias = node->same_body; alias; alias = alias->next) |
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738 { |
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739 hashval_t hash; |
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740 name = DECL_ASSEMBLER_NAME (alias->decl); |
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741 hash = decl_assembler_name_hash (name); |
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742 slot = htab_find_slot_with_hash (assembler_name_hash, name, |
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743 hash, INSERT); |
|
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744 if (!*slot) |
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745 *slot = alias; |
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746 } |
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747 } |
| 0 | 748 } |
| 749 } | |
| 750 | |
| 751 slot = htab_find_slot_with_hash (assembler_name_hash, asmname, | |
| 752 decl_assembler_name_hash (asmname), | |
| 753 NO_INSERT); | |
| 754 | |
| 755 if (slot) | |
|
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756 { |
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757 node = (struct cgraph_node *) *slot; |
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758 if (node->same_body_alias) |
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759 node = node->same_body; |
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760 return node; |
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761 } |
| 0 | 762 return NULL; |
| 763 } | |
| 764 | |
| 765 /* Returns a hash value for X (which really is a die_struct). */ | |
| 766 | |
| 767 static hashval_t | |
| 768 edge_hash (const void *x) | |
| 769 { | |
| 770 return htab_hash_pointer (((const struct cgraph_edge *) x)->call_stmt); | |
| 771 } | |
| 772 | |
| 773 /* Return nonzero if decl_id of die_struct X is the same as UID of decl *Y. */ | |
| 774 | |
| 775 static int | |
| 776 edge_eq (const void *x, const void *y) | |
| 777 { | |
| 778 return ((const struct cgraph_edge *) x)->call_stmt == y; | |
| 779 } | |
| 780 | |
|
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781 /* Add call graph edge E to call site hash of its caller. */ |
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782 |
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783 static inline void |
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784 cgraph_add_edge_to_call_site_hash (struct cgraph_edge *e) |
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785 { |
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786 void **slot; |
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787 slot = htab_find_slot_with_hash (e->caller->call_site_hash, |
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788 e->call_stmt, |
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789 htab_hash_pointer (e->call_stmt), |
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790 INSERT); |
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791 gcc_assert (!*slot); |
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792 *slot = e; |
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793 } |
| 0 | 794 |
| 795 /* Return the callgraph edge representing the GIMPLE_CALL statement | |
| 796 CALL_STMT. */ | |
| 797 | |
| 798 struct cgraph_edge * | |
| 799 cgraph_edge (struct cgraph_node *node, gimple call_stmt) | |
| 800 { | |
| 801 struct cgraph_edge *e, *e2; | |
| 802 int n = 0; | |
| 803 | |
| 804 if (node->call_site_hash) | |
| 805 return (struct cgraph_edge *) | |
| 806 htab_find_with_hash (node->call_site_hash, call_stmt, | |
| 807 htab_hash_pointer (call_stmt)); | |
| 808 | |
| 809 /* This loop may turn out to be performance problem. In such case adding | |
| 810 hashtables into call nodes with very many edges is probably best | |
| 811 solution. It is not good idea to add pointer into CALL_EXPR itself | |
| 812 because we want to make possible having multiple cgraph nodes representing | |
| 813 different clones of the same body before the body is actually cloned. */ | |
|
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814 for (e = node->callees; e; e = e->next_callee) |
| 0 | 815 { |
| 816 if (e->call_stmt == call_stmt) | |
| 817 break; | |
| 818 n++; | |
| 819 } | |
| 820 | |
|
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821 if (!e) |
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822 for (e = node->indirect_calls; e; e = e->next_callee) |
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823 { |
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824 if (e->call_stmt == call_stmt) |
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825 break; |
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826 n++; |
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827 } |
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828 |
| 0 | 829 if (n > 100) |
| 830 { | |
| 831 node->call_site_hash = htab_create_ggc (120, edge_hash, edge_eq, NULL); | |
| 832 for (e2 = node->callees; e2; e2 = e2->next_callee) | |
|
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833 cgraph_add_edge_to_call_site_hash (e2); |
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834 for (e2 = node->indirect_calls; e2; e2 = e2->next_callee) |
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835 cgraph_add_edge_to_call_site_hash (e2); |
| 0 | 836 } |
| 837 | |
| 838 return e; | |
| 839 } | |
| 840 | |
| 841 | |
|
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842 /* Change field call_stmt of edge E to NEW_STMT. */ |
| 0 | 843 |
| 844 void | |
| 845 cgraph_set_call_stmt (struct cgraph_edge *e, gimple new_stmt) | |
| 846 { | |
|
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847 tree decl; |
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848 |
| 0 | 849 if (e->caller->call_site_hash) |
| 850 { | |
| 851 htab_remove_elt_with_hash (e->caller->call_site_hash, | |
| 852 e->call_stmt, | |
| 853 htab_hash_pointer (e->call_stmt)); | |
| 854 } | |
|
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855 |
| 0 | 856 e->call_stmt = new_stmt; |
|
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857 if (e->indirect_unknown_callee |
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858 && (decl = gimple_call_fndecl (new_stmt))) |
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859 { |
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860 /* Constant propagation (and possibly also inlining?) can turn an |
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|
861 indirect call into a direct one. */ |
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862 struct cgraph_node *new_callee = cgraph_node (decl); |
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|
863 |
|
67
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|
864 cgraph_make_edge_direct (e, new_callee, 0); |
|
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865 } |
|
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|
866 |
|
55
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|
867 push_cfun (DECL_STRUCT_FUNCTION (e->caller->decl)); |
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868 e->can_throw_external = stmt_can_throw_external (new_stmt); |
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|
869 pop_cfun (); |
| 0 | 870 if (e->caller->call_site_hash) |
|
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871 cgraph_add_edge_to_call_site_hash (e); |
| 0 | 872 } |
| 873 | |
|
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874 /* Like cgraph_set_call_stmt but walk the clone tree and update all |
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875 clones sharing the same function body. */ |
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|
876 |
|
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|
877 void |
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878 cgraph_set_call_stmt_including_clones (struct cgraph_node *orig, |
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879 gimple old_stmt, gimple new_stmt) |
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880 { |
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881 struct cgraph_node *node; |
|
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882 struct cgraph_edge *edge = cgraph_edge (orig, old_stmt); |
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883 |
|
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884 if (edge) |
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885 cgraph_set_call_stmt (edge, new_stmt); |
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|
886 |
|
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887 node = orig->clones; |
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888 if (node) |
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889 while (node != orig) |
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|
890 { |
|
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891 struct cgraph_edge *edge = cgraph_edge (node, old_stmt); |
|
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|
892 if (edge) |
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893 cgraph_set_call_stmt (edge, new_stmt); |
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894 if (node->clones) |
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895 node = node->clones; |
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896 else if (node->next_sibling_clone) |
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|
897 node = node->next_sibling_clone; |
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898 else |
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899 { |
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900 while (node != orig && !node->next_sibling_clone) |
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0
diff
changeset
|
901 node = node->clone_of; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
902 if (node != orig) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
903 node = node->next_sibling_clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
904 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
905 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
906 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
907 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
908 /* Like cgraph_create_edge walk the clone tree and update all clones sharing |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
909 same function body. If clones already have edge for OLD_STMT; only |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
910 update the edge same way as cgraph_set_call_stmt_including_clones does. |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
911 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
912 TODO: COUNT and LOOP_DEPTH should be properly distributed based on relative |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
913 frequencies of the clones. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
914 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
915 void |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
916 cgraph_create_edge_including_clones (struct cgraph_node *orig, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
917 struct cgraph_node *callee, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
918 gimple old_stmt, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
919 gimple stmt, gcov_type count, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
920 int freq, int loop_depth, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
921 cgraph_inline_failed_t reason) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
922 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
923 struct cgraph_node *node; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
924 struct cgraph_edge *edge; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
925 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
926 if (!cgraph_edge (orig, stmt)) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
927 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
928 edge = cgraph_create_edge (orig, callee, stmt, count, freq, loop_depth); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
929 edge->inline_failed = reason; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
930 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
931 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
932 node = orig->clones; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
933 if (node) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
934 while (node != orig) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
935 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
936 struct cgraph_edge *edge = cgraph_edge (node, old_stmt); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
937 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
938 /* It is possible that clones already contain the edge while |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
939 master didn't. Either we promoted indirect call into direct |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
940 call in the clone or we are processing clones of unreachable |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
941 master where edges has been removed. */ |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
942 if (edge) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
943 cgraph_set_call_stmt (edge, stmt); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
944 else if (!cgraph_edge (node, stmt)) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
945 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
946 edge = cgraph_create_edge (node, callee, stmt, count, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
947 freq, loop_depth); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
948 edge->inline_failed = reason; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
949 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
950 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
951 if (node->clones) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
952 node = node->clones; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
953 else if (node->next_sibling_clone) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
954 node = node->next_sibling_clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
955 else |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
956 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
957 while (node != orig && !node->next_sibling_clone) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
958 node = node->clone_of; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
959 if (node != orig) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
960 node = node->next_sibling_clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
961 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
962 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
963 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
964 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
965 /* Give initial reasons why inlining would fail on EDGE. This gets either |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
966 nullified or usually overwritten by more precise reasons later. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
967 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
968 static void |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
969 initialize_inline_failed (struct cgraph_edge *e) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
970 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
971 struct cgraph_node *callee = e->callee; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
972 |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
973 if (e->indirect_unknown_callee) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
974 e->inline_failed = CIF_INDIRECT_UNKNOWN_CALL; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
975 else if (!callee->analyzed) |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
976 e->inline_failed = CIF_BODY_NOT_AVAILABLE; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
977 else if (callee->local.redefined_extern_inline) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
978 e->inline_failed = CIF_REDEFINED_EXTERN_INLINE; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
979 else if (!callee->local.inlinable) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
980 e->inline_failed = CIF_FUNCTION_NOT_INLINABLE; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
981 else if (e->call_stmt && gimple_call_cannot_inline_p (e->call_stmt)) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
982 e->inline_failed = CIF_MISMATCHED_ARGUMENTS; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
983 else |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
984 e->inline_failed = CIF_FUNCTION_NOT_CONSIDERED; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
985 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
986 |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
987 /* Allocate a cgraph_edge structure and fill it with data according to the |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
988 parameters of which only CALLEE can be NULL (when creating an indirect call |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
989 edge). */ |
| 0 | 990 |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
991 static struct cgraph_edge * |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
992 cgraph_create_edge_1 (struct cgraph_node *caller, struct cgraph_node *callee, |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
993 gimple call_stmt, gcov_type count, int freq, int nest) |
| 0 | 994 { |
| 995 struct cgraph_edge *edge; | |
| 996 | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
997 /* LTO does not actually have access to the call_stmt since these |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
998 have not been loaded yet. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
999 if (call_stmt) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1000 { |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1001 /* This is a rather expensive check possibly triggering |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1002 construction of call stmt hashtable. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
1003 gcc_checking_assert (!cgraph_edge (caller, call_stmt)); |
| 0 | 1004 |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1005 gcc_assert (is_gimple_call (call_stmt)); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1006 } |
| 0 | 1007 |
| 1008 if (free_edges) | |
| 1009 { | |
| 1010 edge = free_edges; | |
| 1011 free_edges = NEXT_FREE_EDGE (edge); | |
| 1012 } | |
| 1013 else | |
| 1014 { | |
|
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1015 edge = ggc_alloc_cgraph_edge (); |
| 0 | 1016 edge->uid = cgraph_edge_max_uid++; |
| 1017 } | |
| 1018 | |
| 1019 edge->aux = NULL; | |
| 1020 edge->caller = caller; | |
| 1021 edge->callee = callee; | |
| 1022 edge->prev_caller = NULL; | |
|
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1023 edge->next_caller = NULL; |
| 0 | 1024 edge->prev_callee = NULL; |
|
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1025 edge->next_callee = NULL; |
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1026 |
| 0 | 1027 edge->count = count; |
| 1028 gcc_assert (count >= 0); | |
| 1029 edge->frequency = freq; | |
| 1030 gcc_assert (freq >= 0); | |
| 1031 gcc_assert (freq <= CGRAPH_FREQ_MAX); | |
| 1032 edge->loop_nest = nest; | |
|
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1033 |
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1034 edge->call_stmt = call_stmt; |
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1035 push_cfun (DECL_STRUCT_FUNCTION (caller->decl)); |
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1036 edge->can_throw_external |
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1037 = call_stmt ? stmt_can_throw_external (call_stmt) : false; |
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1038 pop_cfun (); |
|
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1039 edge->call_stmt_cannot_inline_p = |
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1040 (call_stmt ? gimple_call_cannot_inline_p (call_stmt) : false); |
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1041 if (call_stmt && caller->call_site_hash) |
|
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1042 cgraph_add_edge_to_call_site_hash (edge); |
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1043 |
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1044 edge->indirect_info = NULL; |
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1045 edge->indirect_inlining_edge = 0; |
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1046 |
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1047 return edge; |
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1048 } |
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1049 |
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1050 /* Create edge from CALLER to CALLEE in the cgraph. */ |
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1051 |
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1052 struct cgraph_edge * |
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1053 cgraph_create_edge (struct cgraph_node *caller, struct cgraph_node *callee, |
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1054 gimple call_stmt, gcov_type count, int freq, int nest) |
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1055 { |
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1056 struct cgraph_edge *edge = cgraph_create_edge_1 (caller, callee, call_stmt, |
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1057 count, freq, nest); |
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1058 |
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1059 edge->indirect_unknown_callee = 0; |
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1060 initialize_inline_failed (edge); |
|
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1061 |
|
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1062 edge->next_caller = callee->callers; |
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1063 if (callee->callers) |
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1064 callee->callers->prev_caller = edge; |
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1065 edge->next_callee = caller->callees; |
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1066 if (caller->callees) |
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1067 caller->callees->prev_callee = edge; |
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1068 caller->callees = edge; |
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1069 callee->callers = edge; |
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1070 |
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1071 return edge; |
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1072 } |
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1073 |
|
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1074 /* Allocate cgraph_indirect_call_info and set its fields to default values. */ |
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1075 |
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1076 struct cgraph_indirect_call_info * |
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1077 cgraph_allocate_init_indirect_info (void) |
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1078 { |
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1079 struct cgraph_indirect_call_info *ii; |
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1080 |
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1081 ii = ggc_alloc_cleared_cgraph_indirect_call_info (); |
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1082 ii->param_index = -1; |
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1083 return ii; |
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1084 } |
|
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1085 |
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1086 /* Create an indirect edge with a yet-undetermined callee where the call |
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1087 statement destination is a formal parameter of the caller with index |
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1088 PARAM_INDEX. */ |
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1089 |
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1090 struct cgraph_edge * |
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1091 cgraph_create_indirect_edge (struct cgraph_node *caller, gimple call_stmt, |
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1092 int ecf_flags, |
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1093 gcov_type count, int freq, int nest) |
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1094 { |
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1095 struct cgraph_edge *edge = cgraph_create_edge_1 (caller, NULL, call_stmt, |
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1096 count, freq, nest); |
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1097 |
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1098 edge->indirect_unknown_callee = 1; |
|
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1099 initialize_inline_failed (edge); |
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1100 |
|
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1101 edge->indirect_info = cgraph_allocate_init_indirect_info (); |
|
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1102 edge->indirect_info->ecf_flags = ecf_flags; |
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1103 |
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1104 edge->next_callee = caller->indirect_calls; |
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1105 if (caller->indirect_calls) |
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1106 caller->indirect_calls->prev_callee = edge; |
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1107 caller->indirect_calls = edge; |
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1108 |
| 0 | 1109 return edge; |
| 1110 } | |
| 1111 | |
| 1112 /* Remove the edge E from the list of the callers of the callee. */ | |
| 1113 | |
| 1114 static inline void | |
| 1115 cgraph_edge_remove_callee (struct cgraph_edge *e) | |
| 1116 { | |
|
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1117 gcc_assert (!e->indirect_unknown_callee); |
| 0 | 1118 if (e->prev_caller) |
| 1119 e->prev_caller->next_caller = e->next_caller; | |
| 1120 if (e->next_caller) | |
| 1121 e->next_caller->prev_caller = e->prev_caller; | |
| 1122 if (!e->prev_caller) | |
| 1123 e->callee->callers = e->next_caller; | |
| 1124 } | |
| 1125 | |
| 1126 /* Remove the edge E from the list of the callees of the caller. */ | |
| 1127 | |
| 1128 static inline void | |
| 1129 cgraph_edge_remove_caller (struct cgraph_edge *e) | |
| 1130 { | |
| 1131 if (e->prev_callee) | |
| 1132 e->prev_callee->next_callee = e->next_callee; | |
| 1133 if (e->next_callee) | |
| 1134 e->next_callee->prev_callee = e->prev_callee; | |
| 1135 if (!e->prev_callee) | |
|
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1136 { |
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1137 if (e->indirect_unknown_callee) |
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1138 e->caller->indirect_calls = e->next_callee; |
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1139 else |
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1140 e->caller->callees = e->next_callee; |
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1141 } |
| 0 | 1142 if (e->caller->call_site_hash) |
| 1143 htab_remove_elt_with_hash (e->caller->call_site_hash, | |
| 1144 e->call_stmt, | |
| 1145 htab_hash_pointer (e->call_stmt)); | |
| 1146 } | |
| 1147 | |
| 1148 /* Put the edge onto the free list. */ | |
| 1149 | |
| 1150 static void | |
| 1151 cgraph_free_edge (struct cgraph_edge *e) | |
| 1152 { | |
| 1153 int uid = e->uid; | |
| 1154 | |
| 1155 /* Clear out the edge so we do not dangle pointers. */ | |
| 1156 memset (e, 0, sizeof (*e)); | |
| 1157 e->uid = uid; | |
| 1158 NEXT_FREE_EDGE (e) = free_edges; | |
| 1159 free_edges = e; | |
| 1160 } | |
| 1161 | |
| 1162 /* Remove the edge E in the cgraph. */ | |
| 1163 | |
| 1164 void | |
| 1165 cgraph_remove_edge (struct cgraph_edge *e) | |
| 1166 { | |
| 1167 /* Call all edge removal hooks. */ | |
| 1168 cgraph_call_edge_removal_hooks (e); | |
| 1169 | |
|
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1170 if (!e->indirect_unknown_callee) |
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1171 /* Remove from callers list of the callee. */ |
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1172 cgraph_edge_remove_callee (e); |
| 0 | 1173 |
| 1174 /* Remove from callees list of the callers. */ | |
| 1175 cgraph_edge_remove_caller (e); | |
| 1176 | |
| 1177 /* Put the edge onto the free list. */ | |
| 1178 cgraph_free_edge (e); | |
| 1179 } | |
| 1180 | |
|
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1181 /* Set callee of call graph edge E and add it to the corresponding set of |
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1182 callers. */ |
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1183 |
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1184 static void |
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1185 cgraph_set_edge_callee (struct cgraph_edge *e, struct cgraph_node *n) |
|
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1186 { |
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1187 e->prev_caller = NULL; |
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1188 if (n->callers) |
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1189 n->callers->prev_caller = e; |
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1190 e->next_caller = n->callers; |
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1191 n->callers = e; |
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1192 e->callee = n; |
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1193 } |
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1194 |
| 0 | 1195 /* Redirect callee of E to N. The function does not update underlying |
| 1196 call expression. */ | |
| 1197 | |
| 1198 void | |
| 1199 cgraph_redirect_edge_callee (struct cgraph_edge *e, struct cgraph_node *n) | |
| 1200 { | |
| 1201 /* Remove from callers list of the current callee. */ | |
| 1202 cgraph_edge_remove_callee (e); | |
| 1203 | |
| 1204 /* Insert to callers list of the new callee. */ | |
|
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1205 cgraph_set_edge_callee (e, n); |
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1206 } |
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1207 |
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1208 /* Make an indirect EDGE with an unknown callee an ordinary edge leading to |
|
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1209 CALLEE. DELTA is an integer constant that is to be added to the this |
|
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1210 pointer (first parameter) to compensate for skipping a thunk adjustment. */ |
|
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1211 |
|
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1212 void |
|
67
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1213 cgraph_make_edge_direct (struct cgraph_edge *edge, struct cgraph_node *callee, |
|
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1214 HOST_WIDE_INT delta) |
|
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1215 { |
|
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1216 edge->indirect_unknown_callee = 0; |
|
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1217 edge->indirect_info->thunk_delta = delta; |
|
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1218 |
|
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1219 /* Get the edge out of the indirect edge list. */ |
|
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1220 if (edge->prev_callee) |
|
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1221 edge->prev_callee->next_callee = edge->next_callee; |
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1222 if (edge->next_callee) |
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1223 edge->next_callee->prev_callee = edge->prev_callee; |
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1224 if (!edge->prev_callee) |
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1225 edge->caller->indirect_calls = edge->next_callee; |
|
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|
1226 |
|
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1227 /* Put it into the normal callee list */ |
|
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1228 edge->prev_callee = NULL; |
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1229 edge->next_callee = edge->caller->callees; |
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1230 if (edge->caller->callees) |
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1231 edge->caller->callees->prev_callee = edge; |
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1232 edge->caller->callees = edge; |
|
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1233 |
|
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1234 /* Insert to callers list of the new callee. */ |
|
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1235 cgraph_set_edge_callee (edge, callee); |
|
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1236 |
|
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1237 /* We need to re-determine the inlining status of the edge. */ |
|
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|
1238 initialize_inline_failed (edge); |
| 0 | 1239 } |
| 1240 | |
| 1241 | |
| 1242 /* Update or remove the corresponding cgraph edge if a GIMPLE_CALL | |
|
55
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|
1243 OLD_STMT changed into NEW_STMT. OLD_CALL is gimple_call_fndecl |
|
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|
1244 of OLD_STMT if it was previously call statement. */ |
| 0 | 1245 |
|
55
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|
1246 static void |
|
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|
1247 cgraph_update_edges_for_call_stmt_node (struct cgraph_node *node, |
|
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|
1248 gimple old_stmt, tree old_call, gimple new_stmt) |
| 0 | 1249 { |
|
55
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|
1250 tree new_call = (is_gimple_call (new_stmt)) ? gimple_call_fndecl (new_stmt) : 0; |
| 0 | 1251 |
|
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|
1252 /* We are seeing indirect calls, then there is nothing to update. */ |
|
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|
1253 if (!new_call && !old_call) |
|
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|
1254 return; |
|
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|
1255 /* See if we turned indirect call into direct call or folded call to one builtin |
|
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|
1256 into different builtin. */ |
| 0 | 1257 if (old_call != new_call) |
| 1258 { | |
| 1259 struct cgraph_edge *e = cgraph_edge (node, old_stmt); | |
| 1260 struct cgraph_edge *ne = NULL; | |
|
55
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|
1261 gcov_type count; |
|
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|
1262 int frequency; |
|
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|
1263 int loop_nest; |
| 0 | 1264 |
| 1265 if (e) | |
| 1266 { | |
|
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1267 /* See if the edge is already there and has the correct callee. It |
|
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1268 might be so because of indirect inlining has already updated |
|
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1269 it. We also might've cloned and redirected the edge. */ |
|
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|
1270 if (new_call && e->callee) |
|
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1271 { |
|
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1272 struct cgraph_node *callee = e->callee; |
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|
1273 while (callee) |
|
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|
1274 { |
|
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|
1275 if (callee->decl == new_call |
|
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1276 || callee->former_clone_of == new_call) |
|
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|
1277 return; |
|
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|
1278 callee = callee->clone_of; |
|
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1279 } |
|
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|
1280 } |
| 0 | 1281 |
|
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|
1282 /* Otherwise remove edge and create new one; we can't simply redirect |
|
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|
1283 since function has changed, so inline plan and other information |
|
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|
1284 attached to edge is invalid. */ |
|
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|
1285 count = e->count; |
|
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|
1286 frequency = e->frequency; |
|
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|
1287 loop_nest = e->loop_nest; |
| 0 | 1288 cgraph_remove_edge (e); |
|
55
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|
1289 } |
|
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|
1290 else |
|
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|
1291 { |
|
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|
1292 /* We are seeing new direct call; compute profile info based on BB. */ |
|
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1293 basic_block bb = gimple_bb (new_stmt); |
|
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1294 count = bb->count; |
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1295 frequency = compute_call_stmt_bb_frequency (current_function_decl, |
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1296 bb); |
|
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1297 loop_nest = bb->loop_depth; |
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1298 } |
|
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1299 |
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1300 if (new_call) |
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1301 { |
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1302 ne = cgraph_create_edge (node, cgraph_node (new_call), |
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|
1303 new_stmt, count, frequency, |
|
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1304 loop_nest); |
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1305 gcc_assert (ne->inline_failed); |
| 0 | 1306 } |
| 1307 } | |
|
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1308 /* We only updated the call stmt; update pointer in cgraph edge.. */ |
| 0 | 1309 else if (old_stmt != new_stmt) |
|
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1310 cgraph_set_call_stmt (cgraph_edge (node, old_stmt), new_stmt); |
|
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1311 } |
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1312 |
|
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1313 /* Update or remove the corresponding cgraph edge if a GIMPLE_CALL |
|
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1314 OLD_STMT changed into NEW_STMT. OLD_DECL is gimple_call_fndecl |
|
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1315 of OLD_STMT before it was updated (updating can happen inplace). */ |
|
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1316 |
|
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1317 void |
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1318 cgraph_update_edges_for_call_stmt (gimple old_stmt, tree old_decl, gimple new_stmt) |
|
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1319 { |
|
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1320 struct cgraph_node *orig = cgraph_node (cfun->decl); |
|
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1321 struct cgraph_node *node; |
| 0 | 1322 |
|
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|
1323 cgraph_update_edges_for_call_stmt_node (orig, old_stmt, old_decl, new_stmt); |
|
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1324 if (orig->clones) |
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1325 for (node = orig->clones; node != orig;) |
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1326 { |
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1327 cgraph_update_edges_for_call_stmt_node (node, old_stmt, old_decl, new_stmt); |
|
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1328 if (node->clones) |
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1329 node = node->clones; |
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1330 else if (node->next_sibling_clone) |
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1331 node = node->next_sibling_clone; |
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1332 else |
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1333 { |
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1334 while (node != orig && !node->next_sibling_clone) |
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|
1335 node = node->clone_of; |
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1336 if (node != orig) |
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1337 node = node->next_sibling_clone; |
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1338 } |
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1339 } |
| 0 | 1340 } |
| 1341 | |
| 1342 | |
| 1343 /* Remove all callees from the node. */ | |
| 1344 | |
| 1345 void | |
| 1346 cgraph_node_remove_callees (struct cgraph_node *node) | |
| 1347 { | |
| 1348 struct cgraph_edge *e, *f; | |
| 1349 | |
| 1350 /* It is sufficient to remove the edges from the lists of callers of | |
| 1351 the callees. The callee list of the node can be zapped with one | |
| 1352 assignment. */ | |
| 1353 for (e = node->callees; e; e = f) | |
| 1354 { | |
| 1355 f = e->next_callee; | |
| 1356 cgraph_call_edge_removal_hooks (e); | |
|
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|
1357 if (!e->indirect_unknown_callee) |
|
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1358 cgraph_edge_remove_callee (e); |
| 0 | 1359 cgraph_free_edge (e); |
| 1360 } | |
|
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1361 for (e = node->indirect_calls; e; e = f) |
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1362 { |
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1363 f = e->next_callee; |
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1364 cgraph_call_edge_removal_hooks (e); |
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1365 if (!e->indirect_unknown_callee) |
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|
1366 cgraph_edge_remove_callee (e); |
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|
1367 cgraph_free_edge (e); |
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1368 } |
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|
1369 node->indirect_calls = NULL; |
| 0 | 1370 node->callees = NULL; |
| 1371 if (node->call_site_hash) | |
| 1372 { | |
| 1373 htab_delete (node->call_site_hash); | |
| 1374 node->call_site_hash = NULL; | |
| 1375 } | |
| 1376 } | |
| 1377 | |
| 1378 /* Remove all callers from the node. */ | |
| 1379 | |
| 1380 static void | |
| 1381 cgraph_node_remove_callers (struct cgraph_node *node) | |
| 1382 { | |
| 1383 struct cgraph_edge *e, *f; | |
| 1384 | |
| 1385 /* It is sufficient to remove the edges from the lists of callees of | |
| 1386 the callers. The caller list of the node can be zapped with one | |
| 1387 assignment. */ | |
| 1388 for (e = node->callers; e; e = f) | |
| 1389 { | |
| 1390 f = e->next_caller; | |
| 1391 cgraph_call_edge_removal_hooks (e); | |
| 1392 cgraph_edge_remove_caller (e); | |
| 1393 cgraph_free_edge (e); | |
| 1394 } | |
| 1395 node->callers = NULL; | |
| 1396 } | |
| 1397 | |
| 1398 /* Release memory used to represent body of function NODE. */ | |
| 1399 | |
| 1400 void | |
| 1401 cgraph_release_function_body (struct cgraph_node *node) | |
| 1402 { | |
| 1403 if (DECL_STRUCT_FUNCTION (node->decl)) | |
| 1404 { | |
| 1405 tree old_decl = current_function_decl; | |
| 1406 push_cfun (DECL_STRUCT_FUNCTION (node->decl)); | |
| 1407 if (cfun->gimple_df) | |
| 1408 { | |
| 1409 current_function_decl = node->decl; | |
| 1410 delete_tree_ssa (); | |
| 1411 delete_tree_cfg_annotations (); | |
| 1412 cfun->eh = NULL; | |
| 1413 current_function_decl = old_decl; | |
| 1414 } | |
| 1415 if (cfun->cfg) | |
| 1416 { | |
| 1417 gcc_assert (dom_computed[0] == DOM_NONE); | |
| 1418 gcc_assert (dom_computed[1] == DOM_NONE); | |
| 1419 clear_edges (); | |
| 1420 } | |
| 1421 if (cfun->value_histograms) | |
| 1422 free_histograms (); | |
| 1423 gcc_assert (!current_loops); | |
| 1424 pop_cfun(); | |
| 1425 gimple_set_body (node->decl, NULL); | |
| 1426 VEC_free (ipa_opt_pass, heap, | |
|
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1427 node->ipa_transforms_to_apply); |
| 0 | 1428 /* Struct function hangs a lot of data that would leak if we didn't |
| 1429 removed all pointers to it. */ | |
| 1430 ggc_free (DECL_STRUCT_FUNCTION (node->decl)); | |
| 1431 DECL_STRUCT_FUNCTION (node->decl) = NULL; | |
| 1432 } | |
| 1433 DECL_SAVED_TREE (node->decl) = NULL; | |
| 1434 /* If the node is abstract and needed, then do not clear DECL_INITIAL | |
| 1435 of its associated function function declaration because it's | |
| 1436 needed to emit debug info later. */ | |
| 1437 if (!node->abstract_and_needed) | |
| 1438 DECL_INITIAL (node->decl) = error_mark_node; | |
| 1439 } | |
| 1440 | |
|
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1441 /* Remove same body alias node. */ |
|
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1442 |
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1443 void |
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1444 cgraph_remove_same_body_alias (struct cgraph_node *node) |
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1445 { |
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1446 void **slot; |
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1447 int uid = node->uid; |
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1448 |
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1449 gcc_assert (node->same_body_alias); |
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1450 if (node->previous) |
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1451 node->previous->next = node->next; |
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1452 else |
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1453 node->same_body->same_body = node->next; |
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1454 if (node->next) |
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1455 node->next->previous = node->previous; |
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1456 node->next = NULL; |
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1457 node->previous = NULL; |
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1458 slot = htab_find_slot (cgraph_hash, node, NO_INSERT); |
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1459 if (*slot == node) |
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1460 htab_clear_slot (cgraph_hash, slot); |
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1461 if (assembler_name_hash) |
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1462 { |
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1463 tree name = DECL_ASSEMBLER_NAME (node->decl); |
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1464 slot = htab_find_slot_with_hash (assembler_name_hash, name, |
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1465 decl_assembler_name_hash (name), |
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1466 NO_INSERT); |
|
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1467 if (slot && *slot == node) |
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1468 htab_clear_slot (assembler_name_hash, slot); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1469 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1470 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1471 /* Clear out the node to NULL all pointers and add the node to the free |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1472 list. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1473 memset (node, 0, sizeof(*node)); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1474 node->uid = uid; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1475 NEXT_FREE_NODE (node) = free_nodes; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1476 free_nodes = node; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1477 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1478 |
| 0 | 1479 /* Remove the node from cgraph. */ |
| 1480 | |
| 1481 void | |
| 1482 cgraph_remove_node (struct cgraph_node *node) | |
| 1483 { | |
| 1484 void **slot; | |
| 1485 bool kill_body = false; | |
| 1486 struct cgraph_node *n; | |
| 1487 int uid = node->uid; | |
| 1488 | |
| 1489 cgraph_call_node_removal_hooks (node); | |
| 1490 cgraph_node_remove_callers (node); | |
| 1491 cgraph_node_remove_callees (node); | |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
1492 ipa_remove_all_references (&node->ref_list); |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
1493 ipa_remove_all_refering (&node->ref_list); |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1494 VEC_free (ipa_opt_pass, heap, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1495 node->ipa_transforms_to_apply); |
| 0 | 1496 |
| 1497 /* Incremental inlining access removed nodes stored in the postorder list. | |
| 1498 */ | |
| 1499 node->needed = node->reachable = false; | |
| 1500 for (n = node->nested; n; n = n->next_nested) | |
| 1501 n->origin = NULL; | |
| 1502 node->nested = NULL; | |
| 1503 if (node->origin) | |
| 1504 { | |
| 1505 struct cgraph_node **node2 = &node->origin->nested; | |
| 1506 | |
| 1507 while (*node2 != node) | |
| 1508 node2 = &(*node2)->next_nested; | |
| 1509 *node2 = node->next_nested; | |
| 1510 } | |
| 1511 if (node->previous) | |
| 1512 node->previous->next = node->next; | |
| 1513 else | |
| 1514 cgraph_nodes = node->next; | |
| 1515 if (node->next) | |
| 1516 node->next->previous = node->previous; | |
| 1517 node->next = NULL; | |
| 1518 node->previous = NULL; | |
| 1519 slot = htab_find_slot (cgraph_hash, node, NO_INSERT); | |
| 1520 if (*slot == node) | |
| 1521 { | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1522 struct cgraph_node *next_inline_clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1523 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1524 for (next_inline_clone = node->clones; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1525 next_inline_clone && next_inline_clone->decl != node->decl; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1526 next_inline_clone = next_inline_clone->next_sibling_clone) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1527 ; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1528 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1529 /* If there is inline clone of the node being removed, we need |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1530 to put it into the position of removed node and reorganize all |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1531 other clones to be based on it. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1532 if (next_inline_clone) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1533 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1534 struct cgraph_node *n; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1535 struct cgraph_node *new_clones; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1536 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1537 *slot = next_inline_clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1538 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1539 /* Unlink inline clone from the list of clones of removed node. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1540 if (next_inline_clone->next_sibling_clone) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1541 next_inline_clone->next_sibling_clone->prev_sibling_clone |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1542 = next_inline_clone->prev_sibling_clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1543 if (next_inline_clone->prev_sibling_clone) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1544 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1545 gcc_assert (node->clones != next_inline_clone); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1546 next_inline_clone->prev_sibling_clone->next_sibling_clone |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1547 = next_inline_clone->next_sibling_clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1548 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1549 else |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1550 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1551 gcc_assert (node->clones == next_inline_clone); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1552 node->clones = next_inline_clone->next_sibling_clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1553 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1554 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1555 new_clones = node->clones; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1556 node->clones = NULL; |
| 0 | 1557 |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1558 /* Copy clone info. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1559 next_inline_clone->clone = node->clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1560 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1561 /* Now place it into clone tree at same level at NODE. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1562 next_inline_clone->clone_of = node->clone_of; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1563 next_inline_clone->prev_sibling_clone = NULL; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1564 next_inline_clone->next_sibling_clone = NULL; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1565 if (node->clone_of) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1566 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1567 if (node->clone_of->clones) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1568 node->clone_of->clones->prev_sibling_clone = next_inline_clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1569 next_inline_clone->next_sibling_clone = node->clone_of->clones; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1570 node->clone_of->clones = next_inline_clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1571 } |
| 0 | 1572 |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1573 /* Merge the clone list. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1574 if (new_clones) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1575 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1576 if (!next_inline_clone->clones) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1577 next_inline_clone->clones = new_clones; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1578 else |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1579 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1580 n = next_inline_clone->clones; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1581 while (n->next_sibling_clone) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1582 n = n->next_sibling_clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1583 n->next_sibling_clone = new_clones; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1584 new_clones->prev_sibling_clone = n; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1585 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1586 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1587 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1588 /* Update clone_of pointers. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1589 n = new_clones; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1590 while (n) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1591 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1592 n->clone_of = next_inline_clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1593 n = n->next_sibling_clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1594 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1595 } |
| 0 | 1596 else |
| 1597 { | |
| 1598 htab_clear_slot (cgraph_hash, slot); | |
| 1599 kill_body = true; | |
| 1600 } | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1601 |
| 0 | 1602 } |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1603 if (node->prev_sibling_clone) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1604 node->prev_sibling_clone->next_sibling_clone = node->next_sibling_clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1605 else if (node->clone_of) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1606 node->clone_of->clones = node->next_sibling_clone; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1607 if (node->next_sibling_clone) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
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|
1608 node->next_sibling_clone->prev_sibling_clone = node->prev_sibling_clone; |
|
77e2b8dfacca
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diff
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|
1609 if (node->clones) |
| 0 | 1610 { |
|
55
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0
diff
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|
1611 struct cgraph_node *n, *next; |
|
77e2b8dfacca
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diff
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|
1612 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1613 if (node->clone_of) |
|
77e2b8dfacca
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parents:
0
diff
changeset
|
1614 { |
|
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update it from 4.4.3 to 4.5.0
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parents:
0
diff
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|
1615 for (n = node->clones; n->next_sibling_clone; n = n->next_sibling_clone) |
|
77e2b8dfacca
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parents:
0
diff
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|
1616 n->clone_of = node->clone_of; |
|
77e2b8dfacca
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parents:
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diff
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|
1617 n->clone_of = node->clone_of; |
|
77e2b8dfacca
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parents:
0
diff
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|
1618 n->next_sibling_clone = node->clone_of->clones; |
|
77e2b8dfacca
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parents:
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diff
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|
1619 if (node->clone_of->clones) |
|
77e2b8dfacca
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parents:
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diff
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|
1620 node->clone_of->clones->prev_sibling_clone = n; |
|
77e2b8dfacca
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diff
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|
1621 node->clone_of->clones = node->clones; |
|
77e2b8dfacca
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parents:
0
diff
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|
1622 } |
|
77e2b8dfacca
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parents:
0
diff
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|
1623 else |
|
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parents:
0
diff
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|
1624 { |
|
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parents:
0
diff
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|
1625 /* We are removing node with clones. this makes clones inconsistent, |
|
77e2b8dfacca
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parents:
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diff
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|
1626 but assume they will be removed subsequently and just keep clone |
|
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parents:
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diff
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|
1627 tree intact. This can happen in unreachable function removal since |
|
77e2b8dfacca
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parents:
0
diff
changeset
|
1628 we remove unreachable functions in random order, not by bottom-up |
|
77e2b8dfacca
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0
diff
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|
1629 walk of clone trees. */ |
|
77e2b8dfacca
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parents:
0
diff
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|
1630 for (n = node->clones; n; n = next) |
|
77e2b8dfacca
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diff
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|
1631 { |
|
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diff
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|
1632 next = n->next_sibling_clone; |
|
77e2b8dfacca
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|
1633 n->next_sibling_clone = NULL; |
|
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diff
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|
1634 n->prev_sibling_clone = NULL; |
|
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diff
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|
1635 n->clone_of = NULL; |
|
77e2b8dfacca
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parents:
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diff
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|
1636 } |
|
77e2b8dfacca
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0
diff
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|
1637 } |
|
77e2b8dfacca
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0
diff
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|
1638 } |
|
77e2b8dfacca
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0
diff
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|
1639 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1640 while (node->same_body) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1641 cgraph_remove_same_body_alias (node->same_body); |
|
77e2b8dfacca
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parents:
0
diff
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|
1642 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1643 if (node->same_comdat_group) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1644 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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0
diff
changeset
|
1645 struct cgraph_node *prev; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1646 for (prev = node->same_comdat_group; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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0
diff
changeset
|
1647 prev->same_comdat_group != node; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1648 prev = prev->same_comdat_group) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1649 ; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
1650 if (node->same_comdat_group == prev) |
|
77e2b8dfacca
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parents:
0
diff
changeset
|
1651 prev->same_comdat_group = NULL; |
|
77e2b8dfacca
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parents:
0
diff
changeset
|
1652 else |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
1653 prev->same_comdat_group = node->same_comdat_group; |
|
77e2b8dfacca
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parents:
0
diff
changeset
|
1654 node->same_comdat_group = NULL; |
| 0 | 1655 } |
| 1656 | |
| 1657 /* While all the clones are removed after being proceeded, the function | |
| 1658 itself is kept in the cgraph even after it is compiled. Check whether | |
| 1659 we are done with this body and reclaim it proactively if this is the case. | |
| 1660 */ | |
| 1661 if (!kill_body && *slot) | |
| 1662 { | |
| 1663 struct cgraph_node *n = (struct cgraph_node *) *slot; | |
|
55
77e2b8dfacca
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parents:
0
diff
changeset
|
1664 if (!n->clones && !n->clone_of && !n->global.inlined_to |
| 0 | 1665 && (cgraph_global_info_ready |
|
63
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55
diff
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|
1666 && (TREE_ASM_WRITTEN (n->decl) || DECL_EXTERNAL (n->decl) |
|
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55
diff
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|
1667 || n->in_other_partition))) |
| 0 | 1668 kill_body = true; |
| 1669 } | |
| 1670 if (assembler_name_hash) | |
| 1671 { | |
| 1672 tree name = DECL_ASSEMBLER_NAME (node->decl); | |
| 1673 slot = htab_find_slot_with_hash (assembler_name_hash, name, | |
| 1674 decl_assembler_name_hash (name), | |
| 1675 NO_INSERT); | |
| 1676 /* Inline clones are not hashed. */ | |
| 1677 if (slot && *slot == node) | |
| 1678 htab_clear_slot (assembler_name_hash, slot); | |
| 1679 } | |
| 1680 | |
| 1681 if (kill_body) | |
| 1682 cgraph_release_function_body (node); | |
| 1683 node->decl = NULL; | |
| 1684 if (node->call_site_hash) | |
| 1685 { | |
| 1686 htab_delete (node->call_site_hash); | |
| 1687 node->call_site_hash = NULL; | |
| 1688 } | |
| 1689 cgraph_n_nodes--; | |
| 1690 | |
| 1691 /* Clear out the node to NULL all pointers and add the node to the free | |
| 1692 list. */ | |
| 1693 memset (node, 0, sizeof(*node)); | |
| 1694 node->uid = uid; | |
| 1695 NEXT_FREE_NODE (node) = free_nodes; | |
| 1696 free_nodes = node; | |
| 1697 } | |
| 1698 | |
|
55
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update it from 4.4.3 to 4.5.0
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0
diff
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|
1699 /* Remove the node from cgraph. */ |
|
77e2b8dfacca
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0
diff
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|
1700 |
|
77e2b8dfacca
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0
diff
changeset
|
1701 void |
|
77e2b8dfacca
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parents:
0
diff
changeset
|
1702 cgraph_remove_node_and_inline_clones (struct cgraph_node *node) |
|
77e2b8dfacca
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diff
changeset
|
1703 { |
|
77e2b8dfacca
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diff
changeset
|
1704 struct cgraph_edge *e, *next; |
|
77e2b8dfacca
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0
diff
changeset
|
1705 for (e = node->callees; e; e = next) |
|
77e2b8dfacca
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diff
changeset
|
1706 { |
|
77e2b8dfacca
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0
diff
changeset
|
1707 next = e->next_callee; |
|
77e2b8dfacca
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parents:
0
diff
changeset
|
1708 if (!e->inline_failed) |
|
77e2b8dfacca
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parents:
0
diff
changeset
|
1709 cgraph_remove_node_and_inline_clones (e->callee); |
|
77e2b8dfacca
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0
diff
changeset
|
1710 } |
|
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diff
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|
1711 cgraph_remove_node (node); |
|
77e2b8dfacca
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|
1712 } |
|
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diff
changeset
|
1713 |
| 0 | 1714 /* Notify finalize_compilation_unit that given node is reachable. */ |
| 1715 | |
| 1716 void | |
| 1717 cgraph_mark_reachable_node (struct cgraph_node *node) | |
| 1718 { | |
| 1719 if (!node->reachable && node->local.finalized) | |
| 1720 { | |
|
63
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55
diff
changeset
|
1721 if (cgraph_global_info_ready) |
|
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|
1722 { |
|
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55
diff
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|
1723 /* Verify that function does not appear to be needed out of blue |
|
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55
diff
changeset
|
1724 during the optimization process. This can happen for extern |
|
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diff
changeset
|
1725 inlines when bodies was removed after inlining. */ |
|
67
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diff
changeset
|
1726 gcc_assert ((node->analyzed || node->in_other_partition |
|
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|
1727 || DECL_EXTERNAL (node->decl))); |
|
63
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|
1728 } |
|
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diff
changeset
|
1729 else |
|
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diff
changeset
|
1730 notice_global_symbol (node->decl); |
| 0 | 1731 node->reachable = 1; |
| 1732 | |
| 1733 node->next_needed = cgraph_nodes_queue; | |
| 1734 cgraph_nodes_queue = node; | |
| 1735 } | |
| 1736 } | |
| 1737 | |
| 1738 /* Likewise indicate that a node is needed, i.e. reachable via some | |
| 1739 external means. */ | |
| 1740 | |
| 1741 void | |
| 1742 cgraph_mark_needed_node (struct cgraph_node *node) | |
| 1743 { | |
| 1744 node->needed = 1; | |
|
55
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diff
changeset
|
1745 gcc_assert (!node->global.inlined_to); |
| 0 | 1746 cgraph_mark_reachable_node (node); |
| 1747 } | |
| 1748 | |
|
55
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|
1749 /* Likewise indicate that a node is having address taken. */ |
|
77e2b8dfacca
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|
1750 |
|
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changeset
|
1751 void |
|
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|
1752 cgraph_mark_address_taken_node (struct cgraph_node *node) |
|
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|
1753 { |
|
67
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63
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changeset
|
1754 gcc_assert (!node->global.inlined_to); |
|
63
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55
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changeset
|
1755 cgraph_mark_reachable_node (node); |
|
55
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changeset
|
1756 node->address_taken = 1; |
|
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changeset
|
1757 } |
|
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changeset
|
1758 |
| 0 | 1759 /* Return local info for the compiled function. */ |
| 1760 | |
| 1761 struct cgraph_local_info * | |
| 1762 cgraph_local_info (tree decl) | |
| 1763 { | |
| 1764 struct cgraph_node *node; | |
| 1765 | |
| 1766 gcc_assert (TREE_CODE (decl) == FUNCTION_DECL); | |
| 1767 node = cgraph_node (decl); | |
| 1768 return &node->local; | |
| 1769 } | |
| 1770 | |
| 1771 /* Return local info for the compiled function. */ | |
| 1772 | |
| 1773 struct cgraph_global_info * | |
| 1774 cgraph_global_info (tree decl) | |
| 1775 { | |
| 1776 struct cgraph_node *node; | |
| 1777 | |
| 1778 gcc_assert (TREE_CODE (decl) == FUNCTION_DECL && cgraph_global_info_ready); | |
| 1779 node = cgraph_node (decl); | |
| 1780 return &node->global; | |
| 1781 } | |
| 1782 | |
| 1783 /* Return local info for the compiled function. */ | |
| 1784 | |
| 1785 struct cgraph_rtl_info * | |
| 1786 cgraph_rtl_info (tree decl) | |
| 1787 { | |
| 1788 struct cgraph_node *node; | |
| 1789 | |
| 1790 gcc_assert (TREE_CODE (decl) == FUNCTION_DECL); | |
| 1791 node = cgraph_node (decl); | |
| 1792 if (decl != current_function_decl | |
| 1793 && !TREE_ASM_WRITTEN (node->decl)) | |
| 1794 return NULL; | |
| 1795 return &node->rtl; | |
| 1796 } | |
| 1797 | |
|
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1798 /* Return a string describing the failure REASON. */ |
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1799 |
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1800 const char* |
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1801 cgraph_inline_failed_string (cgraph_inline_failed_t reason) |
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1802 { |
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1803 #undef DEFCIFCODE |
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1804 #define DEFCIFCODE(code, string) string, |
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1805 |
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1806 static const char *cif_string_table[CIF_N_REASONS] = { |
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1807 #include "cif-code.def" |
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1808 }; |
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1809 |
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1810 /* Signedness of an enum type is implementation defined, so cast it |
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1811 to unsigned before testing. */ |
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1812 gcc_assert ((unsigned) reason < CIF_N_REASONS); |
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1813 return cif_string_table[reason]; |
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1814 } |
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1815 |
| 0 | 1816 /* Return name of the node used in debug output. */ |
| 1817 const char * | |
| 1818 cgraph_node_name (struct cgraph_node *node) | |
| 1819 { | |
| 1820 return lang_hooks.decl_printable_name (node->decl, 2); | |
| 1821 } | |
| 1822 | |
| 1823 /* Names used to print out the availability enum. */ | |
| 1824 const char * const cgraph_availability_names[] = | |
| 1825 {"unset", "not_available", "overwritable", "available", "local"}; | |
| 1826 | |
| 1827 | |
| 1828 /* Dump call graph node NODE to file F. */ | |
| 1829 | |
| 1830 void | |
| 1831 dump_cgraph_node (FILE *f, struct cgraph_node *node) | |
| 1832 { | |
| 1833 struct cgraph_edge *edge; | |
|
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1834 int indirect_calls_count = 0; |
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1835 |
|
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1836 fprintf (f, "%s/%i(%i)", cgraph_node_name (node), node->uid, |
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1837 node->pid); |
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1838 dump_addr (f, " @", (void *)node); |
|
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1839 if (DECL_ASSEMBLER_NAME_SET_P (node->decl)) |
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1840 fprintf (f, " (asm: %s)", IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (node->decl))); |
| 0 | 1841 if (node->global.inlined_to) |
| 1842 fprintf (f, " (inline copy in %s/%i)", | |
| 1843 cgraph_node_name (node->global.inlined_to), | |
| 1844 node->global.inlined_to->uid); | |
|
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1845 if (node->same_comdat_group) |
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1846 fprintf (f, " (same comdat group as %s/%i)", |
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1847 cgraph_node_name (node->same_comdat_group), |
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1848 node->same_comdat_group->uid); |
|
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1849 if (node->clone_of) |
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1850 fprintf (f, " (clone of %s/%i)", |
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1851 cgraph_node_name (node->clone_of), |
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1852 node->clone_of->uid); |
| 0 | 1853 if (cgraph_function_flags_ready) |
| 1854 fprintf (f, " availability:%s", | |
| 1855 cgraph_availability_names [cgraph_function_body_availability (node)]); | |
|
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1856 if (node->analyzed) |
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1857 fprintf (f, " analyzed"); |
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1858 if (node->in_other_partition) |
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1859 fprintf (f, " in_other_partition"); |
| 0 | 1860 if (node->count) |
| 1861 fprintf (f, " executed "HOST_WIDEST_INT_PRINT_DEC"x", | |
| 1862 (HOST_WIDEST_INT)node->count); | |
|
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1863 if (node->local.inline_summary.self_time) |
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1864 fprintf (f, " %i time, %i benefit", node->local.inline_summary.self_time, |
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1865 node->local.inline_summary.time_inlining_benefit); |
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1866 if (node->global.time && node->global.time |
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1867 != node->local.inline_summary.self_time) |
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1868 fprintf (f, " (%i after inlining)", node->global.time); |
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1869 if (node->local.inline_summary.self_size) |
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1870 fprintf (f, " %i size, %i benefit", node->local.inline_summary.self_size, |
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1871 node->local.inline_summary.size_inlining_benefit); |
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1872 if (node->global.size && node->global.size |
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1873 != node->local.inline_summary.self_size) |
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1874 fprintf (f, " (%i after inlining)", node->global.size); |
| 0 | 1875 if (node->local.inline_summary.estimated_self_stack_size) |
| 1876 fprintf (f, " %i bytes stack usage", (int)node->local.inline_summary.estimated_self_stack_size); | |
| 1877 if (node->global.estimated_stack_size != node->local.inline_summary.estimated_self_stack_size) | |
| 1878 fprintf (f, " %i bytes after inlining", (int)node->global.estimated_stack_size); | |
| 1879 if (node->origin) | |
| 1880 fprintf (f, " nested in: %s", cgraph_node_name (node->origin)); | |
| 1881 if (node->needed) | |
| 1882 fprintf (f, " needed"); | |
|
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1883 if (node->address_taken) |
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1884 fprintf (f, " address_taken"); |
| 0 | 1885 else if (node->reachable) |
| 1886 fprintf (f, " reachable"); | |
|
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1887 else if (node->reachable_from_other_partition) |
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1888 fprintf (f, " reachable_from_other_partition"); |
| 0 | 1889 if (gimple_has_body_p (node->decl)) |
| 1890 fprintf (f, " body"); | |
|
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1891 if (node->process) |
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1892 fprintf (f, " process"); |
| 0 | 1893 if (node->local.local) |
| 1894 fprintf (f, " local"); | |
| 1895 if (node->local.externally_visible) | |
| 1896 fprintf (f, " externally_visible"); | |
|
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1897 if (node->resolution != LDPR_UNKNOWN) |
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1898 fprintf (f, " %s", |
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1899 ld_plugin_symbol_resolution_names[(int)node->resolution]); |
| 0 | 1900 if (node->local.finalized) |
| 1901 fprintf (f, " finalized"); | |
| 1902 if (node->local.disregard_inline_limits) | |
| 1903 fprintf (f, " always_inline"); | |
| 1904 else if (node->local.inlinable) | |
| 1905 fprintf (f, " inlinable"); | |
|
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1906 else if (node->local.versionable) |
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1907 fprintf (f, " versionable"); |
| 0 | 1908 if (node->local.redefined_extern_inline) |
| 1909 fprintf (f, " redefined_extern_inline"); | |
| 1910 if (TREE_ASM_WRITTEN (node->decl)) | |
| 1911 fprintf (f, " asm_written"); | |
|
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1912 if (node->only_called_at_startup) |
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1913 fprintf (f, " only_called_at_startup"); |
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1914 if (node->only_called_at_exit) |
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1915 fprintf (f, " only_called_at_exit"); |
| 0 | 1916 |
| 1917 fprintf (f, "\n called by: "); | |
| 1918 for (edge = node->callers; edge; edge = edge->next_caller) | |
| 1919 { | |
| 1920 fprintf (f, "%s/%i ", cgraph_node_name (edge->caller), | |
| 1921 edge->caller->uid); | |
| 1922 if (edge->count) | |
| 1923 fprintf (f, "("HOST_WIDEST_INT_PRINT_DEC"x) ", | |
| 1924 (HOST_WIDEST_INT)edge->count); | |
| 1925 if (edge->frequency) | |
| 1926 fprintf (f, "(%.2f per call) ", | |
| 1927 edge->frequency / (double)CGRAPH_FREQ_BASE); | |
| 1928 if (!edge->inline_failed) | |
| 1929 fprintf(f, "(inlined) "); | |
|
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1930 if (edge->indirect_inlining_edge) |
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1931 fprintf(f, "(indirect_inlining) "); |
|
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1932 if (edge->can_throw_external) |
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1933 fprintf(f, "(can throw external) "); |
| 0 | 1934 } |
| 1935 | |
| 1936 fprintf (f, "\n calls: "); | |
| 1937 for (edge = node->callees; edge; edge = edge->next_callee) | |
| 1938 { | |
| 1939 fprintf (f, "%s/%i ", cgraph_node_name (edge->callee), | |
| 1940 edge->callee->uid); | |
| 1941 if (!edge->inline_failed) | |
| 1942 fprintf(f, "(inlined) "); | |
|
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1943 if (edge->indirect_inlining_edge) |
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1944 fprintf(f, "(indirect_inlining) "); |
| 0 | 1945 if (edge->count) |
| 1946 fprintf (f, "("HOST_WIDEST_INT_PRINT_DEC"x) ", | |
| 1947 (HOST_WIDEST_INT)edge->count); | |
| 1948 if (edge->frequency) | |
| 1949 fprintf (f, "(%.2f per call) ", | |
| 1950 edge->frequency / (double)CGRAPH_FREQ_BASE); | |
| 1951 if (edge->loop_nest) | |
| 1952 fprintf (f, "(nested in %i loops) ", edge->loop_nest); | |
|
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1953 if (edge->can_throw_external) |
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1954 fprintf(f, "(can throw external) "); |
| 0 | 1955 } |
| 1956 fprintf (f, "\n"); | |
|
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1957 fprintf (f, " References: "); |
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1958 ipa_dump_references (f, &node->ref_list); |
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1959 fprintf (f, " Refering this function: "); |
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1960 ipa_dump_refering (f, &node->ref_list); |
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1961 |
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1962 for (edge = node->indirect_calls; edge; edge = edge->next_callee) |
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1963 indirect_calls_count++; |
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1964 if (indirect_calls_count) |
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1965 fprintf (f, " has %i outgoing edges for indirect calls.\n", |
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1966 indirect_calls_count); |
|
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1967 |
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1968 if (node->same_body) |
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1969 { |
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1970 struct cgraph_node *n; |
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1971 fprintf (f, " aliases & thunks:"); |
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1972 for (n = node->same_body; n; n = n->next) |
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1973 { |
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1974 fprintf (f, " %s/%i", cgraph_node_name (n), n->uid); |
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1975 if (n->thunk.thunk_p) |
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1976 { |
|
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1977 fprintf (f, " (thunk of %s fixed offset %i virtual value %i has " |
|
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1978 "virtual offset %i", |
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1979 lang_hooks.decl_printable_name (n->thunk.alias, 2), |
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1980 (int)n->thunk.fixed_offset, |
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1981 (int)n->thunk.virtual_value, |
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1982 (int)n->thunk.virtual_offset_p); |
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1983 fprintf (f, ")"); |
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1984 } |
|
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1985 if (DECL_ASSEMBLER_NAME_SET_P (n->decl)) |
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1986 fprintf (f, " (asm: %s)", IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (n->decl))); |
|
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1987 } |
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1988 fprintf (f, "\n"); |
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1989 } |
| 0 | 1990 } |
| 1991 | |
| 1992 | |
| 1993 /* Dump call graph node NODE to stderr. */ | |
| 1994 | |
|
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|
1995 DEBUG_FUNCTION void |
| 0 | 1996 debug_cgraph_node (struct cgraph_node *node) |
| 1997 { | |
| 1998 dump_cgraph_node (stderr, node); | |
| 1999 } | |
| 2000 | |
| 2001 | |
| 2002 /* Dump the callgraph to file F. */ | |
| 2003 | |
| 2004 void | |
| 2005 dump_cgraph (FILE *f) | |
| 2006 { | |
| 2007 struct cgraph_node *node; | |
| 2008 | |
| 2009 fprintf (f, "callgraph:\n\n"); | |
| 2010 for (node = cgraph_nodes; node; node = node->next) | |
| 2011 dump_cgraph_node (f, node); | |
| 2012 } | |
| 2013 | |
| 2014 | |
| 2015 /* Dump the call graph to stderr. */ | |
| 2016 | |
|
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2017 DEBUG_FUNCTION void |
| 0 | 2018 debug_cgraph (void) |
| 2019 { | |
| 2020 dump_cgraph (stderr); | |
| 2021 } | |
| 2022 | |
| 2023 | |
| 2024 /* Set the DECL_ASSEMBLER_NAME and update cgraph hashtables. */ | |
| 2025 | |
| 2026 void | |
| 2027 change_decl_assembler_name (tree decl, tree name) | |
| 2028 { | |
|
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2029 struct cgraph_node *node; |
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2030 void **slot; |
| 0 | 2031 if (!DECL_ASSEMBLER_NAME_SET_P (decl)) |
|
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2032 SET_DECL_ASSEMBLER_NAME (decl, name); |
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2033 else |
| 0 | 2034 { |
|
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2035 if (name == DECL_ASSEMBLER_NAME (decl)) |
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2036 return; |
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2037 |
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2038 if (assembler_name_hash |
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2039 && TREE_CODE (decl) == FUNCTION_DECL |
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2040 && (node = cgraph_get_node_or_alias (decl)) != NULL) |
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2041 { |
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2042 tree old_name = DECL_ASSEMBLER_NAME (decl); |
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2043 slot = htab_find_slot_with_hash (assembler_name_hash, old_name, |
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2044 decl_assembler_name_hash (old_name), |
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2045 NO_INSERT); |
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2046 /* Inline clones are not hashed. */ |
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2047 if (slot && *slot == node) |
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2048 htab_clear_slot (assembler_name_hash, slot); |
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2049 } |
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2050 if (TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)) |
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2051 && DECL_RTL_SET_P (decl)) |
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2052 warning (0, "%D renamed after being referenced in assembly", decl); |
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2053 |
| 0 | 2054 SET_DECL_ASSEMBLER_NAME (decl, name); |
| 2055 } | |
|
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2056 if (assembler_name_hash |
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2057 && TREE_CODE (decl) == FUNCTION_DECL |
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2058 && (node = cgraph_get_node_or_alias (decl)) != NULL) |
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2059 { |
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2060 slot = htab_find_slot_with_hash (assembler_name_hash, name, |
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2061 decl_assembler_name_hash (name), |
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2062 INSERT); |
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2063 gcc_assert (!*slot); |
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2064 *slot = node; |
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2065 } |
| 0 | 2066 } |
| 2067 | |
| 2068 /* Add a top-level asm statement to the list. */ | |
| 2069 | |
| 2070 struct cgraph_asm_node * | |
| 2071 cgraph_add_asm_node (tree asm_str) | |
| 2072 { | |
| 2073 struct cgraph_asm_node *node; | |
| 2074 | |
|
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2075 node = ggc_alloc_cleared_cgraph_asm_node (); |
| 0 | 2076 node->asm_str = asm_str; |
| 2077 node->order = cgraph_order++; | |
| 2078 node->next = NULL; | |
| 2079 if (cgraph_asm_nodes == NULL) | |
| 2080 cgraph_asm_nodes = node; | |
| 2081 else | |
| 2082 cgraph_asm_last_node->next = node; | |
| 2083 cgraph_asm_last_node = node; | |
| 2084 return node; | |
| 2085 } | |
| 2086 | |
| 2087 /* Return true when the DECL can possibly be inlined. */ | |
| 2088 bool | |
| 2089 cgraph_function_possibly_inlined_p (tree decl) | |
| 2090 { | |
| 2091 if (!cgraph_global_info_ready) | |
| 2092 return !DECL_UNINLINABLE (decl); | |
| 2093 return DECL_POSSIBLY_INLINED (decl); | |
| 2094 } | |
| 2095 | |
| 2096 /* Create clone of E in the node N represented by CALL_EXPR the callgraph. */ | |
| 2097 struct cgraph_edge * | |
| 2098 cgraph_clone_edge (struct cgraph_edge *e, struct cgraph_node *n, | |
|
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2099 gimple call_stmt, unsigned stmt_uid, gcov_type count_scale, |
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2100 int freq_scale, int loop_nest, bool update_original) |
| 0 | 2101 { |
| 2102 struct cgraph_edge *new_edge; | |
| 2103 gcov_type count = e->count * count_scale / REG_BR_PROB_BASE; | |
|
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2104 gcov_type freq; |
| 0 | 2105 |
|
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2106 /* We do not want to ignore loop nest after frequency drops to 0. */ |
|
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2107 if (!freq_scale) |
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2108 freq_scale = 1; |
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2109 freq = e->frequency * (gcov_type) freq_scale / CGRAPH_FREQ_BASE; |
| 0 | 2110 if (freq > CGRAPH_FREQ_MAX) |
| 2111 freq = CGRAPH_FREQ_MAX; | |
|
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2112 |
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2113 if (e->indirect_unknown_callee) |
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2114 { |
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2115 tree decl; |
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2116 |
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2117 if (call_stmt && (decl = gimple_call_fndecl (call_stmt))) |
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2118 { |
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2119 struct cgraph_node *callee = cgraph_node (decl); |
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|
2120 new_edge = cgraph_create_edge (n, callee, call_stmt, count, freq, |
|
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diff
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2121 e->loop_nest + loop_nest); |
|
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diff
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|
2122 } |
|
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diff
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|
2123 else |
|
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diff
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|
2124 { |
|
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diff
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|
2125 new_edge = cgraph_create_indirect_edge (n, call_stmt, |
|
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diff
changeset
|
2126 e->indirect_info->ecf_flags, |
|
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diff
changeset
|
2127 count, freq, |
|
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diff
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|
2128 e->loop_nest + loop_nest); |
|
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diff
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|
2129 *new_edge->indirect_info = *e->indirect_info; |
|
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diff
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|
2130 } |
|
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2131 } |
|
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diff
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|
2132 else |
|
67
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|
2133 { |
|
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diff
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|
2134 new_edge = cgraph_create_edge (n, e->callee, call_stmt, count, freq, |
|
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|
2135 e->loop_nest + loop_nest); |
|
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|
2136 if (e->indirect_info) |
|
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|
2137 { |
|
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|
2138 new_edge->indirect_info |
|
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2139 = ggc_alloc_cleared_cgraph_indirect_call_info (); |
|
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2140 *new_edge->indirect_info = *e->indirect_info; |
|
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2141 } |
|
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2142 } |
| 0 | 2143 |
| 2144 new_edge->inline_failed = e->inline_failed; | |
|
63
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|
2145 new_edge->indirect_inlining_edge = e->indirect_inlining_edge; |
|
55
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diff
changeset
|
2146 new_edge->lto_stmt_uid = stmt_uid; |
|
67
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|
2147 /* Clone flags that depend on call_stmt availability manually. */ |
|
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|
2148 new_edge->can_throw_external = e->can_throw_external; |
|
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|
2149 new_edge->call_stmt_cannot_inline_p = e->call_stmt_cannot_inline_p; |
| 0 | 2150 if (update_original) |
| 2151 { | |
| 2152 e->count -= new_edge->count; | |
| 2153 if (e->count < 0) | |
| 2154 e->count = 0; | |
| 2155 } | |
| 2156 cgraph_call_edge_duplication_hooks (e, new_edge); | |
| 2157 return new_edge; | |
| 2158 } | |
| 2159 | |
| 2160 /* Create node representing clone of N executed COUNT times. Decrease | |
| 2161 the execution counts from original node too. | |
|
63
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diff
changeset
|
2162 The new clone will have decl set to DECL that may or may not be the same |
|
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diff
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|
2163 as decl of N. |
| 0 | 2164 |
| 2165 When UPDATE_ORIGINAL is true, the counts are subtracted from the original | |
| 2166 function's profile to reflect the fact that part of execution is handled | |
| 2167 by node. */ | |
| 2168 struct cgraph_node * | |
|
63
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diff
changeset
|
2169 cgraph_clone_node (struct cgraph_node *n, tree decl, gcov_type count, int freq, |
|
55
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diff
changeset
|
2170 int loop_nest, bool update_original, |
|
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diff
changeset
|
2171 VEC(cgraph_edge_p,heap) *redirect_callers) |
| 0 | 2172 { |
| 2173 struct cgraph_node *new_node = cgraph_create_node (); | |
| 2174 struct cgraph_edge *e; | |
| 2175 gcov_type count_scale; | |
|
55
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diff
changeset
|
2176 unsigned i; |
| 0 | 2177 |
|
63
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diff
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|
2178 new_node->decl = decl; |
| 0 | 2179 new_node->origin = n->origin; |
| 2180 if (new_node->origin) | |
| 2181 { | |
| 2182 new_node->next_nested = new_node->origin->nested; | |
| 2183 new_node->origin->nested = new_node; | |
| 2184 } | |
| 2185 new_node->analyzed = n->analyzed; | |
| 2186 new_node->local = n->local; | |
|
55
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diff
changeset
|
2187 new_node->local.externally_visible = false; |
|
63
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diff
changeset
|
2188 new_node->local.local = true; |
|
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diff
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|
2189 new_node->local.vtable_method = false; |
| 0 | 2190 new_node->global = n->global; |
| 2191 new_node->rtl = n->rtl; | |
| 2192 new_node->count = count; | |
|
63
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diff
changeset
|
2193 new_node->frequency = n->frequency; |
|
55
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diff
changeset
|
2194 new_node->clone = n->clone; |
|
63
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|
2195 new_node->clone.tree_map = 0; |
| 0 | 2196 if (n->count) |
| 2197 { | |
| 2198 if (new_node->count > n->count) | |
| 2199 count_scale = REG_BR_PROB_BASE; | |
| 2200 else | |
| 2201 count_scale = new_node->count * REG_BR_PROB_BASE / n->count; | |
| 2202 } | |
| 2203 else | |
| 2204 count_scale = 0; | |
| 2205 if (update_original) | |
| 2206 { | |
| 2207 n->count -= count; | |
| 2208 if (n->count < 0) | |
| 2209 n->count = 0; | |
| 2210 } | |
| 2211 | |
|
67
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diff
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|
2212 FOR_EACH_VEC_ELT (cgraph_edge_p, redirect_callers, i, e) |
|
55
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diff
changeset
|
2213 { |
|
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diff
changeset
|
2214 /* Redirect calls to the old version node to point to its new |
|
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diff
changeset
|
2215 version. */ |
|
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parents:
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diff
changeset
|
2216 cgraph_redirect_edge_callee (e, new_node); |
|
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diff
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|
2217 } |
|
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diff
changeset
|
2218 |
| 0 | 2219 |
|
55
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parents:
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diff
changeset
|
2220 for (e = n->callees;e; e=e->next_callee) |
|
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diff
changeset
|
2221 cgraph_clone_edge (e, new_node, e->call_stmt, e->lto_stmt_uid, |
|
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diff
changeset
|
2222 count_scale, freq, loop_nest, update_original); |
|
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diff
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|
2223 |
|
63
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diff
changeset
|
2224 for (e = n->indirect_calls; e; e = e->next_callee) |
|
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diff
changeset
|
2225 cgraph_clone_edge (e, new_node, e->call_stmt, e->lto_stmt_uid, |
|
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diff
changeset
|
2226 count_scale, freq, loop_nest, update_original); |
|
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diff
changeset
|
2227 ipa_clone_references (new_node, NULL, &n->ref_list); |
|
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diff
changeset
|
2228 |
|
55
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parents:
0
diff
changeset
|
2229 new_node->next_sibling_clone = n->clones; |
|
77e2b8dfacca
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parents:
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diff
changeset
|
2230 if (n->clones) |
|
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parents:
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diff
changeset
|
2231 n->clones->prev_sibling_clone = new_node; |
|
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parents:
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diff
changeset
|
2232 n->clones = new_node; |
|
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parents:
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diff
changeset
|
2233 new_node->clone_of = n; |
| 0 | 2234 |
| 2235 cgraph_call_node_duplication_hooks (n, new_node); | |
|
63
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diff
changeset
|
2236 if (n->decl != decl) |
|
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diff
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|
2237 { |
|
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diff
changeset
|
2238 struct cgraph_node **slot; |
|
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diff
changeset
|
2239 slot = (struct cgraph_node **) htab_find_slot (cgraph_hash, new_node, INSERT); |
|
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diff
changeset
|
2240 gcc_assert (!*slot); |
|
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|
2241 *slot = new_node; |
|
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diff
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|
2242 if (assembler_name_hash) |
|
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|
2243 { |
|
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diff
changeset
|
2244 void **aslot; |
|
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diff
changeset
|
2245 tree name = DECL_ASSEMBLER_NAME (decl); |
|
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|
2246 |
|
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diff
changeset
|
2247 aslot = htab_find_slot_with_hash (assembler_name_hash, name, |
|
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diff
changeset
|
2248 decl_assembler_name_hash (name), |
|
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diff
changeset
|
2249 INSERT); |
|
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diff
changeset
|
2250 gcc_assert (!*aslot); |
|
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diff
changeset
|
2251 *aslot = new_node; |
|
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diff
changeset
|
2252 } |
|
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diff
changeset
|
2253 } |
| 0 | 2254 return new_node; |
| 2255 } | |
| 2256 | |
|
67
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changeset
|
2257 /* Create a new name for clone of DECL, add SUFFIX. Returns an identifier. */ |
|
55
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diff
changeset
|
2258 |
|
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diff
changeset
|
2259 static GTY(()) unsigned int clone_fn_id_num; |
|
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diff
changeset
|
2260 |
|
67
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diff
changeset
|
2261 tree |
|
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diff
changeset
|
2262 clone_function_name (tree decl, const char *suffix) |
|
55
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update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2263 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2264 tree name = DECL_ASSEMBLER_NAME (decl); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2265 size_t len = IDENTIFIER_LENGTH (name); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2266 char *tmp_name, *prefix; |
| 0 | 2267 |
|
67
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
2268 prefix = XALLOCAVEC (char, len + strlen (suffix) + 2); |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2269 memcpy (prefix, IDENTIFIER_POINTER (name), len); |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2270 strcpy (prefix + len + 1, suffix); |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
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diff
changeset
|
2271 #ifndef NO_DOT_IN_LABEL |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2272 prefix[len] = '.'; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2273 #elif !defined NO_DOLLAR_IN_LABEL |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2274 prefix[len] = '$'; |
|
67
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diff
changeset
|
2275 #else |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
2276 prefix[len] = '_'; |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2277 #endif |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2278 ASM_FORMAT_PRIVATE_NAME (tmp_name, prefix, clone_fn_id_num++); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
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diff
changeset
|
2279 return get_identifier (tmp_name); |
| 0 | 2280 } |
| 2281 | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2282 /* Create callgraph node clone with new declaration. The actual body will |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2283 be copied later at compilation stage. |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2284 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2285 TODO: after merging in ipa-sra use function call notes instead of args_to_skip |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2286 bitmap interface. |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2287 */ |
| 0 | 2288 struct cgraph_node * |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2289 cgraph_create_virtual_clone (struct cgraph_node *old_node, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2290 VEC(cgraph_edge_p,heap) *redirect_callers, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2291 VEC(ipa_replace_map_p,gc) *tree_map, |
|
67
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update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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63
diff
changeset
|
2292 bitmap args_to_skip, |
|
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
2293 const char * suffix) |
| 0 | 2294 { |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2295 tree old_decl = old_node->decl; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
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diff
changeset
|
2296 struct cgraph_node *new_node = NULL; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2297 tree new_decl; |
|
63
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update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2298 size_t i; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2299 struct ipa_replace_map *map; |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2300 |
|
63
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update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2301 if (!flag_wpa) |
|
67
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
2302 gcc_checking_assert (tree_versionable_function_p (old_decl)); |
|
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diff
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|
2303 |
|
f6334be47118
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diff
changeset
|
2304 gcc_assert (old_node->local.can_change_signature || !args_to_skip); |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2305 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2306 /* Make a new FUNCTION_DECL tree node */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2307 if (!args_to_skip) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2308 new_decl = copy_node (old_decl); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2309 else |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2310 new_decl = build_function_decl_skip_args (old_decl, args_to_skip); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2311 DECL_STRUCT_FUNCTION (new_decl) = NULL; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2312 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2313 /* Generate a new name for the new version. */ |
|
67
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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diff
changeset
|
2314 DECL_NAME (new_decl) = clone_function_name (old_decl, suffix); |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2315 SET_DECL_ASSEMBLER_NAME (new_decl, DECL_NAME (new_decl)); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2316 SET_DECL_RTL (new_decl, NULL); |
| 0 | 2317 |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2318 new_node = cgraph_clone_node (old_node, new_decl, old_node->count, |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2319 CGRAPH_FREQ_BASE, 0, false, |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2320 redirect_callers); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2321 /* Update the properties. |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2322 Make clone visible only within this translation unit. Make sure |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2323 that is not weak also. |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2324 ??? We cannot use COMDAT linkage because there is no |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2325 ABI support for this. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2326 DECL_EXTERNAL (new_node->decl) = 0; |
|
67
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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63
diff
changeset
|
2327 if (DECL_ONE_ONLY (old_decl)) |
|
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2328 DECL_SECTION_NAME (new_node->decl) = NULL; |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2329 DECL_COMDAT_GROUP (new_node->decl) = 0; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2330 TREE_PUBLIC (new_node->decl) = 0; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2331 DECL_COMDAT (new_node->decl) = 0; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2332 DECL_WEAK (new_node->decl) = 0; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2333 new_node->clone.tree_map = tree_map; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2334 new_node->clone.args_to_skip = args_to_skip; |
|
67
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2335 FOR_EACH_VEC_ELT (ipa_replace_map_p, tree_map, i, map) |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2336 { |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2337 tree var = map->new_tree; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2338 |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2339 STRIP_NOPS (var); |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2340 if (TREE_CODE (var) != ADDR_EXPR) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2341 continue; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2342 var = get_base_var (var); |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2343 if (!var) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2344 continue; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2345 |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2346 /* Record references of the future statement initializing the constant |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2347 argument. */ |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2348 if (TREE_CODE (var) == FUNCTION_DECL) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2349 ipa_record_reference (new_node, NULL, cgraph_node (var), |
|
b7f97abdc517
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55
diff
changeset
|
2350 NULL, IPA_REF_ADDR, NULL); |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2351 else if (TREE_CODE (var) == VAR_DECL) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2352 ipa_record_reference (new_node, NULL, NULL, varpool_node (var), |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2353 IPA_REF_ADDR, NULL); |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2354 } |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2355 if (!args_to_skip) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2356 new_node->clone.combined_args_to_skip = old_node->clone.combined_args_to_skip; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2357 else if (old_node->clone.combined_args_to_skip) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2358 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2359 int newi = 0, oldi = 0; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2360 tree arg; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2361 bitmap new_args_to_skip = BITMAP_GGC_ALLOC (); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2362 struct cgraph_node *orig_node; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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parents:
0
diff
changeset
|
2363 for (orig_node = old_node; orig_node->clone_of; orig_node = orig_node->clone_of) |
|
77e2b8dfacca
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|
2364 ; |
|
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|
2365 for (arg = DECL_ARGUMENTS (orig_node->decl); arg; arg = DECL_CHAIN (arg), oldi++) |
|
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|
2366 { |
|
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|
2367 if (bitmap_bit_p (old_node->clone.combined_args_to_skip, oldi)) |
|
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|
2368 { |
|
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|
2369 bitmap_set_bit (new_args_to_skip, oldi); |
|
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diff
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|
2370 continue; |
|
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|
2371 } |
|
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|
2372 if (bitmap_bit_p (args_to_skip, newi)) |
|
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|
2373 bitmap_set_bit (new_args_to_skip, oldi); |
|
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diff
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|
2374 newi++; |
|
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|
2375 } |
|
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|
2376 new_node->clone.combined_args_to_skip = new_args_to_skip; |
|
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|
2377 } |
|
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|
2378 else |
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|
2379 new_node->clone.combined_args_to_skip = args_to_skip; |
|
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|
2380 new_node->local.externally_visible = 0; |
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|
2381 new_node->local.local = 1; |
|
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|
2382 new_node->lowered = true; |
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|
2383 new_node->reachable = true; |
| 0 | 2384 |
|
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|
2385 |
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|
2386 return new_node; |
| 0 | 2387 } |
| 2388 | |
| 2389 /* NODE is no longer nested function; update cgraph accordingly. */ | |
| 2390 void | |
| 2391 cgraph_unnest_node (struct cgraph_node *node) | |
| 2392 { | |
| 2393 struct cgraph_node **node2 = &node->origin->nested; | |
| 2394 gcc_assert (node->origin); | |
| 2395 | |
| 2396 while (*node2 != node) | |
| 2397 node2 = &(*node2)->next_nested; | |
| 2398 *node2 = node->next_nested; | |
| 2399 node->origin = NULL; | |
| 2400 } | |
| 2401 | |
| 2402 /* Return function availability. See cgraph.h for description of individual | |
| 2403 return values. */ | |
| 2404 enum availability | |
| 2405 cgraph_function_body_availability (struct cgraph_node *node) | |
| 2406 { | |
| 2407 enum availability avail; | |
| 2408 gcc_assert (cgraph_function_flags_ready); | |
| 2409 if (!node->analyzed) | |
| 2410 avail = AVAIL_NOT_AVAILABLE; | |
| 2411 else if (node->local.local) | |
| 2412 avail = AVAIL_LOCAL; | |
| 2413 else if (!node->local.externally_visible) | |
| 2414 avail = AVAIL_AVAILABLE; | |
|
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|
2415 /* Inline functions are safe to be analyzed even if their symbol can |
|
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|
2416 be overwritten at runtime. It is not meaningful to enforce any sane |
|
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|
2417 behaviour on replacing inline function by different body. */ |
|
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|
2418 else if (DECL_DECLARED_INLINE_P (node->decl)) |
|
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|
2419 avail = AVAIL_AVAILABLE; |
| 0 | 2420 |
| 2421 /* If the function can be overwritten, return OVERWRITABLE. Take | |
| 2422 care at least of two notable extensions - the COMDAT functions | |
| 2423 used to share template instantiations in C++ (this is symmetric | |
| 2424 to code cp_cannot_inline_tree_fn and probably shall be shared and | |
| 2425 the inlinability hooks completely eliminated). | |
| 2426 | |
| 2427 ??? Does the C++ one definition rule allow us to always return | |
| 2428 AVAIL_AVAILABLE here? That would be good reason to preserve this | |
|
55
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|
2429 bit. */ |
| 0 | 2430 |
|
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|
2431 else if (decl_replaceable_p (node->decl) && !DECL_EXTERNAL (node->decl)) |
| 0 | 2432 avail = AVAIL_OVERWRITABLE; |
| 2433 else avail = AVAIL_AVAILABLE; | |
| 2434 | |
| 2435 return avail; | |
| 2436 } | |
| 2437 | |
| 2438 /* Add the function FNDECL to the call graph. | |
| 2439 Unlike cgraph_finalize_function, this function is intended to be used | |
| 2440 by middle end and allows insertion of new function at arbitrary point | |
| 2441 of compilation. The function can be either in high, low or SSA form | |
| 2442 GIMPLE. | |
| 2443 | |
| 2444 The function is assumed to be reachable and have address taken (so no | |
|
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|
2445 API breaking optimizations are performed on it). |
| 0 | 2446 |
| 2447 Main work done by this function is to enqueue the function for later | |
| 2448 processing to avoid need the passes to be re-entrant. */ | |
| 2449 | |
| 2450 void | |
| 2451 cgraph_add_new_function (tree fndecl, bool lowered) | |
| 2452 { | |
| 2453 struct cgraph_node *node; | |
| 2454 switch (cgraph_state) | |
| 2455 { | |
| 2456 case CGRAPH_STATE_CONSTRUCTION: | |
| 2457 /* Just enqueue function to be processed at nearest occurrence. */ | |
| 2458 node = cgraph_node (fndecl); | |
| 2459 node->next_needed = cgraph_new_nodes; | |
| 2460 if (lowered) | |
| 2461 node->lowered = true; | |
| 2462 cgraph_new_nodes = node; | |
| 2463 break; | |
| 2464 | |
| 2465 case CGRAPH_STATE_IPA: | |
| 2466 case CGRAPH_STATE_IPA_SSA: | |
| 2467 case CGRAPH_STATE_EXPANSION: | |
| 2468 /* Bring the function into finalized state and enqueue for later | |
| 2469 analyzing and compilation. */ | |
| 2470 node = cgraph_node (fndecl); | |
| 2471 node->local.local = false; | |
| 2472 node->local.finalized = true; | |
| 2473 node->reachable = node->needed = true; | |
| 2474 if (!lowered && cgraph_state == CGRAPH_STATE_EXPANSION) | |
| 2475 { | |
| 2476 push_cfun (DECL_STRUCT_FUNCTION (fndecl)); | |
| 2477 current_function_decl = fndecl; | |
| 2478 gimple_register_cfg_hooks (); | |
| 2479 tree_lowering_passes (fndecl); | |
| 2480 bitmap_obstack_initialize (NULL); | |
| 2481 if (!gimple_in_ssa_p (DECL_STRUCT_FUNCTION (fndecl))) | |
| 2482 execute_pass_list (pass_early_local_passes.pass.sub); | |
| 2483 bitmap_obstack_release (NULL); | |
| 2484 pop_cfun (); | |
| 2485 current_function_decl = NULL; | |
| 2486 | |
| 2487 lowered = true; | |
| 2488 } | |
| 2489 if (lowered) | |
| 2490 node->lowered = true; | |
| 2491 node->next_needed = cgraph_new_nodes; | |
| 2492 cgraph_new_nodes = node; | |
| 2493 break; | |
| 2494 | |
| 2495 case CGRAPH_STATE_FINISHED: | |
| 2496 /* At the very end of compilation we have to do all the work up | |
| 2497 to expansion. */ | |
| 2498 push_cfun (DECL_STRUCT_FUNCTION (fndecl)); | |
| 2499 current_function_decl = fndecl; | |
| 2500 gimple_register_cfg_hooks (); | |
| 2501 if (!lowered) | |
| 2502 tree_lowering_passes (fndecl); | |
| 2503 bitmap_obstack_initialize (NULL); | |
| 2504 if (!gimple_in_ssa_p (DECL_STRUCT_FUNCTION (fndecl))) | |
| 2505 execute_pass_list (pass_early_local_passes.pass.sub); | |
| 2506 bitmap_obstack_release (NULL); | |
| 2507 tree_rest_of_compilation (fndecl); | |
| 2508 pop_cfun (); | |
| 2509 current_function_decl = NULL; | |
| 2510 break; | |
| 2511 } | |
|
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|
2512 |
|
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diff
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|
2513 /* Set a personality if required and we already passed EH lowering. */ |
|
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diff
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|
2514 if (lowered |
|
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update it from 4.4.3 to 4.5.0
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|
2515 && (function_needs_eh_personality (DECL_STRUCT_FUNCTION (fndecl)) |
|
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diff
changeset
|
2516 == eh_personality_lang)) |
|
77e2b8dfacca
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diff
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|
2517 DECL_FUNCTION_PERSONALITY (fndecl) = lang_hooks.eh_personality (); |
|
77e2b8dfacca
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diff
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|
2518 } |
|
77e2b8dfacca
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diff
changeset
|
2519 |
|
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diff
changeset
|
2520 /* Return true if NODE can be made local for API change. |
|
77e2b8dfacca
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diff
changeset
|
2521 Extern inline functions and C++ COMDAT functions can be made local |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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diff
changeset
|
2522 at the expense of possible code size growth if function is used in multiple |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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diff
changeset
|
2523 compilation units. */ |
|
77e2b8dfacca
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diff
changeset
|
2524 bool |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
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diff
changeset
|
2525 cgraph_node_can_be_local_p (struct cgraph_node *node) |
|
77e2b8dfacca
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diff
changeset
|
2526 { |
|
63
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update gcc from gcc-4.5.0 to gcc-4.6
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diff
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|
2527 return (!node->needed && !node->address_taken |
|
55
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|
2528 && ((DECL_COMDAT (node->decl) && !node->same_comdat_group) |
|
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diff
changeset
|
2529 || !node->local.externally_visible)); |
|
77e2b8dfacca
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|
2530 } |
|
77e2b8dfacca
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diff
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|
2531 |
|
63
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diff
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|
2532 /* Make DECL local. FIXME: We shouldn't need to mess with rtl this early, |
|
b7f97abdc517
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diff
changeset
|
2533 but other code such as notice_global_symbol generates rtl. */ |
|
b7f97abdc517
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diff
changeset
|
2534 void |
|
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update gcc from gcc-4.5.0 to gcc-4.6
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diff
changeset
|
2535 cgraph_make_decl_local (tree decl) |
|
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diff
changeset
|
2536 { |
|
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update gcc from gcc-4.5.0 to gcc-4.6
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diff
changeset
|
2537 rtx rtl, symbol; |
|
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diff
changeset
|
2538 |
|
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diff
changeset
|
2539 if (TREE_CODE (decl) == VAR_DECL) |
|
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diff
changeset
|
2540 DECL_COMMON (decl) = 0; |
|
67
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|
2541 else gcc_assert (TREE_CODE (decl) == FUNCTION_DECL); |
|
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|
2542 |
|
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|
2543 if (DECL_COMDAT (decl)) |
|
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|
2544 { |
|
67
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diff
changeset
|
2545 /* It is possible that we are linking against library defining same COMDAT |
|
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changeset
|
2546 function. To avoid conflict we need to rename our local name of the |
|
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changeset
|
2547 function just in the case WHOPR partitioning decide to make it hidden |
|
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changeset
|
2548 to avoid cross partition references. */ |
|
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changeset
|
2549 if (flag_wpa) |
|
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|
2550 { |
|
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|
2551 const char *old_name; |
|
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changeset
|
2552 |
|
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diff
changeset
|
2553 old_name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)); |
|
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changeset
|
2554 if (TREE_CODE (decl) == FUNCTION_DECL) |
|
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changeset
|
2555 { |
|
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changeset
|
2556 struct cgraph_node *node = cgraph_get_node_or_alias (decl); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2557 change_decl_assembler_name (decl, |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2558 clone_function_name (decl, "local")); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2559 if (node->local.lto_file_data) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2560 lto_record_renamed_decl (node->local.lto_file_data, |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2561 old_name, |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2562 IDENTIFIER_POINTER |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2563 (DECL_ASSEMBLER_NAME (decl))); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2564 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2565 else if (TREE_CODE (decl) == VAR_DECL) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2566 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2567 struct varpool_node *vnode = varpool_get_node (decl); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2568 /* change_decl_assembler_name will warn here on vtables because |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2569 C++ frontend still sets TREE_SYMBOL_REFERENCED on them. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2570 SET_DECL_ASSEMBLER_NAME (decl, |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2571 clone_function_name (decl, "local")); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2572 if (vnode->lto_file_data) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2573 lto_record_renamed_decl (vnode->lto_file_data, |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2574 old_name, |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2575 IDENTIFIER_POINTER |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2576 (DECL_ASSEMBLER_NAME (decl))); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2577 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2578 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2579 DECL_SECTION_NAME (decl) = 0; |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2580 DECL_COMDAT (decl) = 0; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2581 } |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2582 DECL_COMDAT_GROUP (decl) = 0; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2583 DECL_WEAK (decl) = 0; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2584 DECL_EXTERNAL (decl) = 0; |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2585 TREE_PUBLIC (decl) = 0; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2586 if (!DECL_RTL_SET_P (decl)) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2587 return; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2588 |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2589 /* Update rtl flags. */ |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2590 make_decl_rtl (decl); |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2591 |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2592 rtl = DECL_RTL (decl); |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2593 if (!MEM_P (rtl)) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2594 return; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2595 |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2596 symbol = XEXP (rtl, 0); |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2597 if (GET_CODE (symbol) != SYMBOL_REF) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2598 return; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2599 |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2600 SYMBOL_REF_WEAK (symbol) = DECL_WEAK (decl); |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2601 } |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2602 |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2603 /* Bring NODE local. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2604 void |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2605 cgraph_make_node_local (struct cgraph_node *node) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2606 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2607 gcc_assert (cgraph_node_can_be_local_p (node)); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2608 if (DECL_COMDAT (node->decl) || DECL_EXTERNAL (node->decl)) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2609 { |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2610 struct cgraph_node *alias; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2611 cgraph_make_decl_local (node->decl); |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2612 |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2613 for (alias = node->same_body; alias; alias = alias->next) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2614 cgraph_make_decl_local (alias->decl); |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2615 |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2616 node->local.externally_visible = false; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2617 node->local.local = true; |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2618 node->resolution = LDPR_PREVAILING_DEF_IRONLY; |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2619 gcc_assert (cgraph_function_body_availability (node) == AVAIL_LOCAL); |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2620 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2621 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2622 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2623 /* Set TREE_NOTHROW on NODE's decl and on same_body aliases of NODE |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2624 if any to NOTHROW. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2625 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2626 void |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2627 cgraph_set_nothrow_flag (struct cgraph_node *node, bool nothrow) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2628 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2629 struct cgraph_node *alias; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2630 TREE_NOTHROW (node->decl) = nothrow; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2631 for (alias = node->same_body; alias; alias = alias->next) |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2632 TREE_NOTHROW (alias->decl) = nothrow; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2633 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2634 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2635 /* Set TREE_READONLY on NODE's decl and on same_body aliases of NODE |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2636 if any to READONLY. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2637 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2638 void |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2639 cgraph_set_const_flag (struct cgraph_node *node, bool readonly, bool looping) |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2640 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2641 struct cgraph_node *alias; |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2642 /* Static constructors and destructors without a side effect can be |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2643 optimized out. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2644 if (!looping && readonly) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2645 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2646 if (DECL_STATIC_CONSTRUCTOR (node->decl)) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2647 DECL_STATIC_CONSTRUCTOR (node->decl) = 0; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2648 if (DECL_STATIC_DESTRUCTOR (node->decl)) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2649 DECL_STATIC_DESTRUCTOR (node->decl) = 0; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2650 } |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2651 TREE_READONLY (node->decl) = readonly; |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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63
diff
changeset
|
2652 DECL_LOOPING_CONST_OR_PURE_P (node->decl) = looping; |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2653 for (alias = node->same_body; alias; alias = alias->next) |
|
67
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update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2654 { |
|
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update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2655 TREE_READONLY (alias->decl) = readonly; |
|
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update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2656 DECL_LOOPING_CONST_OR_PURE_P (alias->decl) = looping; |
|
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update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2657 } |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2658 } |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2659 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2660 /* Set DECL_PURE_P on NODE's decl and on same_body aliases of NODE |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2661 if any to PURE. */ |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2662 |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2663 void |
|
67
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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63
diff
changeset
|
2664 cgraph_set_pure_flag (struct cgraph_node *node, bool pure, bool looping) |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2665 { |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2666 struct cgraph_node *alias; |
|
67
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update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2667 /* Static constructors and destructors without a side effect can be |
|
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update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2668 optimized out. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2669 if (!looping && pure) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2670 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2671 if (DECL_STATIC_CONSTRUCTOR (node->decl)) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2672 DECL_STATIC_CONSTRUCTOR (node->decl) = 0; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2673 if (DECL_STATIC_DESTRUCTOR (node->decl)) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2674 DECL_STATIC_DESTRUCTOR (node->decl) = 0; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2675 } |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2676 DECL_PURE_P (node->decl) = pure; |
|
67
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2677 DECL_LOOPING_CONST_OR_PURE_P (node->decl) = looping; |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
2678 for (alias = node->same_body; alias; alias = alias->next) |
|
67
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update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2679 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2680 DECL_PURE_P (alias->decl) = pure; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2681 DECL_LOOPING_CONST_OR_PURE_P (alias->decl) = looping; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2682 } |
| 0 | 2683 } |
| 2684 | |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2685 /* See if the frequency of NODE can be updated based on frequencies of its |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2686 callers. */ |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2687 bool |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2688 cgraph_propagate_frequency (struct cgraph_node *node) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2689 { |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2690 bool maybe_unlikely_executed = true, maybe_executed_once = true; |
|
67
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2691 bool only_called_at_startup = true; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2692 bool only_called_at_exit = true; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2693 bool changed = false; |
|
63
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update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2694 struct cgraph_edge *edge; |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2695 |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2696 if (!node->local.local) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2697 return false; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2698 gcc_assert (node->analyzed); |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2699 if (dump_file && (dump_flags & TDF_DETAILS)) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2700 fprintf (dump_file, "Processing frequency %s\n", cgraph_node_name (node)); |
|
67
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update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2701 |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2702 for (edge = node->callers; |
|
67
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2703 edge && (maybe_unlikely_executed || maybe_executed_once |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2704 || only_called_at_startup || only_called_at_exit); |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2705 edge = edge->next_caller) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2706 { |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2707 if (edge->caller != node) |
|
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2708 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2709 only_called_at_startup &= edge->caller->only_called_at_startup; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2710 /* It makes sense to put main() together with the static constructors. |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2711 It will be executed for sure, but rest of functions called from |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2712 main are definitely not at startup only. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2713 if (MAIN_NAME_P (DECL_NAME (edge->caller->decl))) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2714 only_called_at_startup = 0; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2715 only_called_at_exit &= edge->caller->only_called_at_exit; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2716 } |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2717 if (!edge->frequency) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2718 continue; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2719 switch (edge->caller->frequency) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2720 { |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2721 case NODE_FREQUENCY_UNLIKELY_EXECUTED: |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2722 break; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2723 case NODE_FREQUENCY_EXECUTED_ONCE: |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2724 if (dump_file && (dump_flags & TDF_DETAILS)) |
|
67
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
|
2725 fprintf (dump_file, " Called by %s that is executed once\n", |
|
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2726 cgraph_node_name (edge->caller)); |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2727 maybe_unlikely_executed = false; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2728 if (edge->loop_nest) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2729 { |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2730 maybe_executed_once = false; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2731 if (dump_file && (dump_flags & TDF_DETAILS)) |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2732 fprintf (dump_file, " Called in loop\n"); |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
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parents:
55
diff
changeset
|
2733 } |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2734 break; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2735 case NODE_FREQUENCY_HOT: |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2736 case NODE_FREQUENCY_NORMAL: |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2737 if (dump_file && (dump_flags & TDF_DETAILS)) |
|
67
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2738 fprintf (dump_file, " Called by %s that is normal or hot\n", |
|
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2739 cgraph_node_name (edge->caller)); |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2740 maybe_unlikely_executed = false; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2741 maybe_executed_once = false; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2742 break; |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2743 } |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2744 } |
|
67
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2745 if ((only_called_at_startup && !only_called_at_exit) |
|
f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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63
diff
changeset
|
2746 && !node->only_called_at_startup) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2747 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2748 node->only_called_at_startup = true; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2749 if (dump_file) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2750 fprintf (dump_file, "Node %s promoted to only called at startup.\n", |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2751 cgraph_node_name (node)); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2752 changed = true; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2753 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2754 if ((only_called_at_exit && !only_called_at_startup) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2755 && !node->only_called_at_exit) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2756 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2757 node->only_called_at_exit = true; |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2758 if (dump_file) |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2759 fprintf (dump_file, "Node %s promoted to only called at exit.\n", |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2760 cgraph_node_name (node)); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2761 changed = true; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2762 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2763 /* These come either from profile or user hints; never update them. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2764 if (node->frequency == NODE_FREQUENCY_HOT |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2765 || node->frequency == NODE_FREQUENCY_UNLIKELY_EXECUTED) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2766 return changed; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2767 if (maybe_unlikely_executed) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2768 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2769 node->frequency = NODE_FREQUENCY_UNLIKELY_EXECUTED; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2770 if (dump_file) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2771 fprintf (dump_file, "Node %s promoted to unlikely executed.\n", |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2772 cgraph_node_name (node)); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2773 changed = true; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2774 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2775 else if (maybe_executed_once && node->frequency != NODE_FREQUENCY_EXECUTED_ONCE) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2776 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2777 node->frequency = NODE_FREQUENCY_EXECUTED_ONCE; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2778 if (dump_file) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2779 fprintf (dump_file, "Node %s promoted to executed once.\n", |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2780 cgraph_node_name (node)); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2781 changed = true; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2782 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2783 return changed; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2784 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2785 |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2786 /* Return true when NODE can not return or throw and thus |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2787 it is safe to ignore its side effects for IPA analysis. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2788 |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2789 bool |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2790 cgraph_node_cannot_return (struct cgraph_node *node) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2791 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2792 int flags = flags_from_decl_or_type (node->decl); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2793 if (!flag_exceptions) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2794 return (flags & ECF_NORETURN) != 0; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2795 else |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2796 return ((flags & (ECF_NORETURN | ECF_NOTHROW)) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2797 == (ECF_NORETURN | ECF_NOTHROW)); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2798 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2799 |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2800 /* Return true when call of E can not lead to return from caller |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2801 and thus it is safe to ignore its side effects for IPA analysis |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2802 when computing side effects of the caller. |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2803 FIXME: We could actually mark all edges that have no reaching |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2804 patch to EXIT_BLOCK_PTR or throw to get better results. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2805 bool |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2806 cgraph_edge_cannot_lead_to_return (struct cgraph_edge *e) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2807 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2808 if (cgraph_node_cannot_return (e->caller)) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2809 return true; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2810 if (e->indirect_unknown_callee) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2811 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2812 int flags = e->indirect_info->ecf_flags; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2813 if (!flag_exceptions) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2814 return (flags & ECF_NORETURN) != 0; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2815 else |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2816 return ((flags & (ECF_NORETURN | ECF_NOTHROW)) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2817 == (ECF_NORETURN | ECF_NOTHROW)); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2818 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2819 else |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2820 return cgraph_node_cannot_return (e->callee); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2821 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2822 |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2823 /* Return true when function NODE can be removed from callgraph |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2824 if all direct calls are eliminated. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2825 |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2826 bool |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2827 cgraph_can_remove_if_no_direct_calls_and_refs_p (struct cgraph_node *node) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2828 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2829 gcc_assert (!node->global.inlined_to); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2830 /* Extern inlines can always go, we will use the external definition. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2831 if (DECL_EXTERNAL (node->decl)) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2832 return true; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2833 /* When function is needed, we can not remove it. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2834 if (node->needed || node->reachable_from_other_partition) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2835 return false; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2836 if (DECL_STATIC_CONSTRUCTOR (node->decl) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2837 || DECL_STATIC_DESTRUCTOR (node->decl)) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2838 return false; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2839 /* Only COMDAT functions can be removed if externally visible. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2840 if (node->local.externally_visible |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2841 && (!DECL_COMDAT (node->decl) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2842 || cgraph_used_from_object_file_p (node))) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2843 return false; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2844 return true; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2845 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2846 |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2847 /* Return true when function NODE can be expected to be removed |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2848 from program when direct calls in this compilation unit are removed. |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2849 |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2850 As a special case COMDAT functions are |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2851 cgraph_can_remove_if_no_direct_calls_p while the are not |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2852 cgraph_only_called_directly_p (it is possible they are called from other |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2853 unit) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2854 |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2855 This function behaves as cgraph_only_called_directly_p because eliminating |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2856 all uses of COMDAT function does not make it necessarily disappear from |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2857 the program unless we are compiling whole program or we do LTO. In this |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2858 case we know we win since dynamic linking will not really discard the |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2859 linkonce section. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2860 |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2861 bool |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2862 cgraph_will_be_removed_from_program_if_no_direct_calls (struct cgraph_node *node) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2863 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2864 gcc_assert (!node->global.inlined_to); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2865 if (cgraph_used_from_object_file_p (node)) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2866 return false; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2867 if (!in_lto_p && !flag_whole_program) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2868 return cgraph_only_called_directly_p (node); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2869 else |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2870 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2871 if (DECL_EXTERNAL (node->decl)) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2872 return true; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2873 return cgraph_can_remove_if_no_direct_calls_p (node); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2874 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2875 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2876 |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2877 /* Return true when RESOLUTION indicate that linker will use |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2878 the symbol from non-LTO object files. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2879 |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2880 bool |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2881 resolution_used_from_other_file_p (enum ld_plugin_symbol_resolution resolution) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2882 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2883 return (resolution == LDPR_PREVAILING_DEF |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2884 || resolution == LDPR_PREEMPTED_REG |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2885 || resolution == LDPR_RESOLVED_EXEC |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2886 || resolution == LDPR_RESOLVED_DYN); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2887 } |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2888 |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2889 /* Return true when NODE is known to be used from other (non-LTO) object file. |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2890 Known only when doing LTO via linker plugin. */ |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2891 |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2892 bool |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2893 cgraph_used_from_object_file_p (struct cgraph_node *node) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2894 { |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2895 struct cgraph_node *alias; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2896 |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2897 gcc_assert (!node->global.inlined_to); |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2898 if (!TREE_PUBLIC (node->decl) || DECL_EXTERNAL (node->decl)) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2899 return false; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2900 if (resolution_used_from_other_file_p (node->resolution)) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2901 return true; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2902 for (alias = node->same_body; alias; alias = alias->next) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2903 if (TREE_PUBLIC (alias->decl) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2904 && resolution_used_from_other_file_p (alias->resolution)) |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2905 return true; |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
63
diff
changeset
|
2906 return false; |
|
63
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2907 } |
|
b7f97abdc517
update gcc from gcc-4.5.0 to gcc-4.6
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
2908 |
| 0 | 2909 #include "gt-cgraph.h" |