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e72fcfe8 | 1 | /* Callgraph handling code. |
a5544970 | 2 | Copyright (C) 2003-2019 Free Software Foundation, Inc. |
e72fcfe8 JH |
3 | Contributed by Jan Hubicka |
4 | ||
5 | This file is part of GCC. | |
6 | ||
7 | GCC is free software; you can redistribute it and/or modify it under | |
8 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 9 | Software Foundation; either version 3, or (at your option) any later |
e72fcfe8 JH |
10 | version. |
11 | ||
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
e72fcfe8 | 20 | |
8a4a83ed | 21 | /* This file contains basic routines manipulating call graph |
c22cacf3 | 22 | |
357067f2 JH |
23 | The call-graph is a data structure designed for inter-procedural |
24 | optimization. It represents a multi-graph where nodes are functions | |
25 | (symbols within symbol table) and edges are call sites. */ | |
18c6ada9 | 26 | |
e72fcfe8 JH |
27 | #include "config.h" |
28 | #include "system.h" | |
29 | #include "coretypes.h" | |
c7131fb2 | 30 | #include "backend.h" |
957060b5 AM |
31 | #include "target.h" |
32 | #include "rtl.h" | |
e72fcfe8 | 33 | #include "tree.h" |
c7131fb2 | 34 | #include "gimple.h" |
957060b5 AM |
35 | #include "predict.h" |
36 | #include "alloc-pool.h" | |
957060b5 | 37 | #include "gimple-ssa.h" |
957060b5 AM |
38 | #include "cgraph.h" |
39 | #include "lto-streamer.h" | |
40e23961 | 40 | #include "fold-const.h" |
d8a2d370 DN |
41 | #include "varasm.h" |
42 | #include "calls.h" | |
43 | #include "print-tree.h" | |
e72fcfe8 | 44 | #include "langhooks.h" |
dc0bfe6a | 45 | #include "intl.h" |
2fb9a547 | 46 | #include "tree-eh.h" |
5be5c238 | 47 | #include "gimple-iterator.h" |
442b4905 | 48 | #include "tree-cfg.h" |
7a300452 | 49 | #include "tree-ssa.h" |
a63f2942 | 50 | #include "value-prof.h" |
a940b4d9 | 51 | #include "ipa-utils.h" |
dd912cb8 | 52 | #include "symbol-summary.h" |
8bc5448f | 53 | #include "tree-vrp.h" |
c582198b | 54 | #include "ipa-prop.h" |
27d020cf | 55 | #include "ipa-fnsummary.h" |
7d776ee2 | 56 | #include "cfgloop.h" |
9c8305f8 | 57 | #include "gimple-pretty-print.h" |
23a04216 | 58 | #include "tree-dfa.h" |
893479de | 59 | #include "profile.h" |
2631d4eb | 60 | #include "context.h" |
a49de7a4 | 61 | #include "gimplify.h" |
314e6352 ML |
62 | #include "stringpool.h" |
63 | #include "attribs.h" | |
212755ff | 64 | #include "selftest.h" |
4f75f97b | 65 | #include "tree-into-ssa.h" |
988d1653 | 66 | |
7ee2468b SB |
67 | /* FIXME: Only for PROP_loops, but cgraph shouldn't have to know about this. */ |
68 | #include "tree-pass.h" | |
69 | ||
1668aabc | 70 | /* Queue of cgraph nodes scheduled to be lowered. */ |
5e20cdc9 | 71 | symtab_node *x_cgraph_nodes_queue; |
3dafb85c | 72 | #define cgraph_nodes_queue ((cgraph_node *)x_cgraph_nodes_queue) |
f45e0ad1 | 73 | |
3dafb85c ML |
74 | /* Symbol table global context. */ |
75 | symbol_table *symtab; | |
cd9c7bd2 | 76 | |
61502ca8 | 77 | /* List of hooks triggered on cgraph_edge events. */ |
9088c1cc MJ |
78 | struct cgraph_edge_hook_list { |
79 | cgraph_edge_hook hook; | |
80 | void *data; | |
81 | struct cgraph_edge_hook_list *next; | |
82 | }; | |
83 | ||
61502ca8 | 84 | /* List of hooks triggered on cgraph_node events. */ |
9088c1cc MJ |
85 | struct cgraph_node_hook_list { |
86 | cgraph_node_hook hook; | |
87 | void *data; | |
88 | struct cgraph_node_hook_list *next; | |
89 | }; | |
90 | ||
61502ca8 | 91 | /* List of hooks triggered on events involving two cgraph_edges. */ |
9088c1cc MJ |
92 | struct cgraph_2edge_hook_list { |
93 | cgraph_2edge_hook hook; | |
94 | void *data; | |
95 | struct cgraph_2edge_hook_list *next; | |
96 | }; | |
97 | ||
61502ca8 | 98 | /* List of hooks triggered on events involving two cgraph_nodes. */ |
9088c1cc MJ |
99 | struct cgraph_2node_hook_list { |
100 | cgraph_2node_hook hook; | |
101 | void *data; | |
102 | struct cgraph_2node_hook_list *next; | |
103 | }; | |
104 | ||
2a22f99c TS |
105 | /* Hash descriptor for cgraph_function_version_info. */ |
106 | ||
ca752f39 | 107 | struct function_version_hasher : ggc_ptr_hash<cgraph_function_version_info> |
2a22f99c TS |
108 | { |
109 | static hashval_t hash (cgraph_function_version_info *); | |
110 | static bool equal (cgraph_function_version_info *, | |
111 | cgraph_function_version_info *); | |
112 | }; | |
113 | ||
3649b9b7 ST |
114 | /* Map a cgraph_node to cgraph_function_version_info using this htab. |
115 | The cgraph_function_version_info has a THIS_NODE field that is the | |
116 | corresponding cgraph_node.. */ | |
117 | ||
2a22f99c | 118 | static GTY(()) hash_table<function_version_hasher> *cgraph_fnver_htab = NULL; |
3649b9b7 ST |
119 | |
120 | /* Hash function for cgraph_fnver_htab. */ | |
2a22f99c TS |
121 | hashval_t |
122 | function_version_hasher::hash (cgraph_function_version_info *ptr) | |
3649b9b7 | 123 | { |
4325656f | 124 | int uid = ptr->this_node->get_uid (); |
3649b9b7 ST |
125 | return (hashval_t)(uid); |
126 | } | |
127 | ||
128 | /* eq function for cgraph_fnver_htab. */ | |
2a22f99c TS |
129 | bool |
130 | function_version_hasher::equal (cgraph_function_version_info *n1, | |
131 | cgraph_function_version_info *n2) | |
3649b9b7 | 132 | { |
4325656f | 133 | return n1->this_node->get_uid () == n2->this_node->get_uid (); |
3649b9b7 ST |
134 | } |
135 | ||
136 | /* Mark as GC root all allocated nodes. */ | |
137 | static GTY(()) struct cgraph_function_version_info * | |
138 | version_info_node = NULL; | |
139 | ||
f0889939 AM |
140 | /* Return true if NODE's address can be compared. */ |
141 | ||
142 | bool | |
143 | symtab_node::address_can_be_compared_p () | |
144 | { | |
145 | /* Address of virtual tables and functions is never compared. */ | |
146 | if (DECL_VIRTUAL_P (decl)) | |
147 | return false; | |
148 | /* Address of C++ cdtors is never compared. */ | |
149 | if (is_a <cgraph_node *> (this) | |
150 | && (DECL_CXX_CONSTRUCTOR_P (decl) | |
151 | || DECL_CXX_DESTRUCTOR_P (decl))) | |
152 | return false; | |
153 | /* Constant pool symbols addresses are never compared. | |
154 | flag_merge_constants permits us to assume the same on readonly vars. */ | |
155 | if (is_a <varpool_node *> (this) | |
156 | && (DECL_IN_CONSTANT_POOL (decl) | |
157 | || (flag_merge_constants >= 2 | |
158 | && TREE_READONLY (decl) && !TREE_THIS_VOLATILE (decl)))) | |
159 | return false; | |
160 | return true; | |
161 | } | |
162 | ||
3649b9b7 | 163 | /* Get the cgraph_function_version_info node corresponding to node. */ |
3dafb85c | 164 | cgraph_function_version_info * |
d52f5295 | 165 | cgraph_node::function_version (void) |
3649b9b7 | 166 | { |
3dafb85c | 167 | cgraph_function_version_info key; |
d52f5295 | 168 | key.this_node = this; |
3649b9b7 ST |
169 | |
170 | if (cgraph_fnver_htab == NULL) | |
171 | return NULL; | |
172 | ||
2a22f99c | 173 | return cgraph_fnver_htab->find (&key); |
3649b9b7 ST |
174 | } |
175 | ||
176 | /* Insert a new cgraph_function_version_info node into cgraph_fnver_htab | |
177 | corresponding to cgraph_node NODE. */ | |
3dafb85c | 178 | cgraph_function_version_info * |
d52f5295 | 179 | cgraph_node::insert_new_function_version (void) |
3649b9b7 | 180 | { |
3649b9b7 | 181 | version_info_node = NULL; |
766090c2 | 182 | version_info_node = ggc_cleared_alloc<cgraph_function_version_info> (); |
d52f5295 | 183 | version_info_node->this_node = this; |
3649b9b7 ST |
184 | |
185 | if (cgraph_fnver_htab == NULL) | |
2a22f99c | 186 | cgraph_fnver_htab = hash_table<function_version_hasher>::create_ggc (2); |
3649b9b7 | 187 | |
2a22f99c TS |
188 | *cgraph_fnver_htab->find_slot (version_info_node, INSERT) |
189 | = version_info_node; | |
3649b9b7 ST |
190 | return version_info_node; |
191 | } | |
192 | ||
9acb4592 EK |
193 | /* Remove the cgraph_function_version_info node given by DECL_V. */ |
194 | static void | |
195 | delete_function_version (cgraph_function_version_info *decl_v) | |
3649b9b7 | 196 | { |
3649b9b7 ST |
197 | if (decl_v == NULL) |
198 | return; | |
199 | ||
e9d01715 ML |
200 | if (version_info_node == decl_v) |
201 | version_info_node = NULL; | |
202 | ||
3649b9b7 | 203 | if (decl_v->prev != NULL) |
9acb4592 | 204 | decl_v->prev->next = decl_v->next; |
3649b9b7 ST |
205 | |
206 | if (decl_v->next != NULL) | |
207 | decl_v->next->prev = decl_v->prev; | |
208 | ||
209 | if (cgraph_fnver_htab != NULL) | |
2a22f99c | 210 | cgraph_fnver_htab->remove_elt (decl_v); |
9acb4592 EK |
211 | } |
212 | ||
213 | /* Remove the cgraph_function_version_info and cgraph_node for DECL. This | |
214 | DECL is a duplicate declaration. */ | |
215 | void | |
216 | cgraph_node::delete_function_version_by_decl (tree decl) | |
217 | { | |
218 | cgraph_node *decl_node = cgraph_node::get (decl); | |
219 | ||
220 | if (decl_node == NULL) | |
221 | return; | |
222 | ||
223 | delete_function_version (decl_node->function_version ()); | |
3649b9b7 | 224 | |
d52f5295 | 225 | decl_node->remove (); |
3649b9b7 ST |
226 | } |
227 | ||
228 | /* Record that DECL1 and DECL2 are semantically identical function | |
229 | versions. */ | |
230 | void | |
d52f5295 | 231 | cgraph_node::record_function_versions (tree decl1, tree decl2) |
3649b9b7 | 232 | { |
3dafb85c ML |
233 | cgraph_node *decl1_node = cgraph_node::get_create (decl1); |
234 | cgraph_node *decl2_node = cgraph_node::get_create (decl2); | |
235 | cgraph_function_version_info *decl1_v = NULL; | |
236 | cgraph_function_version_info *decl2_v = NULL; | |
237 | cgraph_function_version_info *before; | |
238 | cgraph_function_version_info *after; | |
3649b9b7 ST |
239 | |
240 | gcc_assert (decl1_node != NULL && decl2_node != NULL); | |
d52f5295 ML |
241 | decl1_v = decl1_node->function_version (); |
242 | decl2_v = decl2_node->function_version (); | |
3649b9b7 ST |
243 | |
244 | if (decl1_v != NULL && decl2_v != NULL) | |
245 | return; | |
246 | ||
247 | if (decl1_v == NULL) | |
d52f5295 | 248 | decl1_v = decl1_node->insert_new_function_version (); |
3649b9b7 ST |
249 | |
250 | if (decl2_v == NULL) | |
d52f5295 | 251 | decl2_v = decl2_node->insert_new_function_version (); |
3649b9b7 ST |
252 | |
253 | /* Chain decl2_v and decl1_v. All semantically identical versions | |
254 | will be chained together. */ | |
255 | ||
256 | before = decl1_v; | |
257 | after = decl2_v; | |
258 | ||
259 | while (before->next != NULL) | |
260 | before = before->next; | |
261 | ||
262 | while (after->prev != NULL) | |
263 | after= after->prev; | |
264 | ||
265 | before->next = after; | |
266 | after->prev = before; | |
267 | } | |
268 | ||
c582198b AM |
269 | /* Initialize callgraph dump file. */ |
270 | ||
271 | void | |
272 | symbol_table::initialize (void) | |
273 | { | |
274 | if (!dump_file) | |
275 | dump_file = dump_begin (TDI_cgraph, NULL); | |
0bdad123 ML |
276 | |
277 | if (!ipa_clones_dump_file) | |
278 | ipa_clones_dump_file = dump_begin (TDI_clones, NULL); | |
c582198b AM |
279 | } |
280 | ||
60393bbc AM |
281 | /* Allocate new callgraph node and insert it into basic data structures. */ |
282 | ||
283 | cgraph_node * | |
284 | symbol_table::create_empty (void) | |
285 | { | |
286 | cgraph_node *node = allocate_cgraph_symbol (); | |
287 | ||
288 | node->type = SYMTAB_FUNCTION; | |
289 | node->frequency = NODE_FREQUENCY_NORMAL; | |
290 | node->count_materialization_scale = REG_BR_PROB_BASE; | |
291 | cgraph_count++; | |
292 | ||
293 | return node; | |
294 | } | |
295 | ||
9088c1cc | 296 | /* Register HOOK to be called with DATA on each removed edge. */ |
3dafb85c ML |
297 | cgraph_edge_hook_list * |
298 | symbol_table::add_edge_removal_hook (cgraph_edge_hook hook, void *data) | |
9088c1cc | 299 | { |
3dafb85c ML |
300 | cgraph_edge_hook_list *entry; |
301 | cgraph_edge_hook_list **ptr = &m_first_edge_removal_hook; | |
9088c1cc | 302 | |
3dafb85c | 303 | entry = (cgraph_edge_hook_list *) xmalloc (sizeof (*entry)); |
9088c1cc MJ |
304 | entry->hook = hook; |
305 | entry->data = data; | |
306 | entry->next = NULL; | |
307 | while (*ptr) | |
308 | ptr = &(*ptr)->next; | |
309 | *ptr = entry; | |
310 | return entry; | |
311 | } | |
312 | ||
313 | /* Remove ENTRY from the list of hooks called on removing edges. */ | |
314 | void | |
3dafb85c | 315 | symbol_table::remove_edge_removal_hook (cgraph_edge_hook_list *entry) |
9088c1cc | 316 | { |
3dafb85c | 317 | cgraph_edge_hook_list **ptr = &m_first_edge_removal_hook; |
9088c1cc MJ |
318 | |
319 | while (*ptr != entry) | |
320 | ptr = &(*ptr)->next; | |
321 | *ptr = entry->next; | |
934cb78a | 322 | free (entry); |
9088c1cc MJ |
323 | } |
324 | ||
325 | /* Call all edge removal hooks. */ | |
3dafb85c ML |
326 | void |
327 | symbol_table::call_edge_removal_hooks (cgraph_edge *e) | |
9088c1cc | 328 | { |
3dafb85c | 329 | cgraph_edge_hook_list *entry = m_first_edge_removal_hook; |
9088c1cc MJ |
330 | while (entry) |
331 | { | |
332 | entry->hook (e, entry->data); | |
333 | entry = entry->next; | |
334 | } | |
335 | } | |
336 | ||
337 | /* Register HOOK to be called with DATA on each removed node. */ | |
3dafb85c ML |
338 | cgraph_node_hook_list * |
339 | symbol_table::add_cgraph_removal_hook (cgraph_node_hook hook, void *data) | |
9088c1cc | 340 | { |
3dafb85c ML |
341 | cgraph_node_hook_list *entry; |
342 | cgraph_node_hook_list **ptr = &m_first_cgraph_removal_hook; | |
9088c1cc | 343 | |
3dafb85c | 344 | entry = (cgraph_node_hook_list *) xmalloc (sizeof (*entry)); |
9088c1cc MJ |
345 | entry->hook = hook; |
346 | entry->data = data; | |
347 | entry->next = NULL; | |
348 | while (*ptr) | |
349 | ptr = &(*ptr)->next; | |
350 | *ptr = entry; | |
351 | return entry; | |
352 | } | |
353 | ||
354 | /* Remove ENTRY from the list of hooks called on removing nodes. */ | |
355 | void | |
3dafb85c | 356 | symbol_table::remove_cgraph_removal_hook (cgraph_node_hook_list *entry) |
9088c1cc | 357 | { |
3dafb85c | 358 | cgraph_node_hook_list **ptr = &m_first_cgraph_removal_hook; |
9088c1cc MJ |
359 | |
360 | while (*ptr != entry) | |
361 | ptr = &(*ptr)->next; | |
362 | *ptr = entry->next; | |
934cb78a | 363 | free (entry); |
9088c1cc MJ |
364 | } |
365 | ||
366 | /* Call all node removal hooks. */ | |
3dafb85c ML |
367 | void |
368 | symbol_table::call_cgraph_removal_hooks (cgraph_node *node) | |
9088c1cc | 369 | { |
3dafb85c | 370 | cgraph_node_hook_list *entry = m_first_cgraph_removal_hook; |
9088c1cc MJ |
371 | while (entry) |
372 | { | |
373 | entry->hook (node, entry->data); | |
374 | entry = entry->next; | |
375 | } | |
376 | } | |
377 | ||
3dafb85c ML |
378 | /* Call all node removal hooks. */ |
379 | void | |
380 | symbol_table::call_cgraph_insertion_hooks (cgraph_node *node) | |
381 | { | |
382 | cgraph_node_hook_list *entry = m_first_cgraph_insertion_hook; | |
383 | while (entry) | |
384 | { | |
385 | entry->hook (node, entry->data); | |
386 | entry = entry->next; | |
387 | } | |
388 | } | |
389 | ||
390 | ||
6544865a | 391 | /* Register HOOK to be called with DATA on each inserted node. */ |
3dafb85c ML |
392 | cgraph_node_hook_list * |
393 | symbol_table::add_cgraph_insertion_hook (cgraph_node_hook hook, void *data) | |
129a37fc | 394 | { |
3dafb85c ML |
395 | cgraph_node_hook_list *entry; |
396 | cgraph_node_hook_list **ptr = &m_first_cgraph_insertion_hook; | |
129a37fc | 397 | |
3dafb85c | 398 | entry = (cgraph_node_hook_list *) xmalloc (sizeof (*entry)); |
129a37fc JH |
399 | entry->hook = hook; |
400 | entry->data = data; | |
401 | entry->next = NULL; | |
402 | while (*ptr) | |
403 | ptr = &(*ptr)->next; | |
404 | *ptr = entry; | |
405 | return entry; | |
406 | } | |
407 | ||
6544865a | 408 | /* Remove ENTRY from the list of hooks called on inserted nodes. */ |
129a37fc | 409 | void |
3dafb85c | 410 | symbol_table::remove_cgraph_insertion_hook (cgraph_node_hook_list *entry) |
129a37fc | 411 | { |
3dafb85c | 412 | cgraph_node_hook_list **ptr = &m_first_cgraph_insertion_hook; |
129a37fc JH |
413 | |
414 | while (*ptr != entry) | |
415 | ptr = &(*ptr)->next; | |
416 | *ptr = entry->next; | |
934cb78a | 417 | free (entry); |
129a37fc JH |
418 | } |
419 | ||
9088c1cc | 420 | /* Register HOOK to be called with DATA on each duplicated edge. */ |
3dafb85c ML |
421 | cgraph_2edge_hook_list * |
422 | symbol_table::add_edge_duplication_hook (cgraph_2edge_hook hook, void *data) | |
9088c1cc | 423 | { |
3dafb85c ML |
424 | cgraph_2edge_hook_list *entry; |
425 | cgraph_2edge_hook_list **ptr = &m_first_edge_duplicated_hook; | |
9088c1cc | 426 | |
3dafb85c | 427 | entry = (cgraph_2edge_hook_list *) xmalloc (sizeof (*entry)); |
9088c1cc MJ |
428 | entry->hook = hook; |
429 | entry->data = data; | |
430 | entry->next = NULL; | |
431 | while (*ptr) | |
432 | ptr = &(*ptr)->next; | |
433 | *ptr = entry; | |
434 | return entry; | |
435 | } | |
436 | ||
437 | /* Remove ENTRY from the list of hooks called on duplicating edges. */ | |
438 | void | |
3dafb85c | 439 | symbol_table::remove_edge_duplication_hook (cgraph_2edge_hook_list *entry) |
9088c1cc | 440 | { |
3dafb85c | 441 | cgraph_2edge_hook_list **ptr = &m_first_edge_duplicated_hook; |
9088c1cc MJ |
442 | |
443 | while (*ptr != entry) | |
444 | ptr = &(*ptr)->next; | |
445 | *ptr = entry->next; | |
934cb78a | 446 | free (entry); |
9088c1cc MJ |
447 | } |
448 | ||
449 | /* Call all edge duplication hooks. */ | |
66a20fc2 | 450 | void |
3dafb85c | 451 | symbol_table::call_edge_duplication_hooks (cgraph_edge *cs1, cgraph_edge *cs2) |
9088c1cc | 452 | { |
3dafb85c | 453 | cgraph_2edge_hook_list *entry = m_first_edge_duplicated_hook; |
9088c1cc MJ |
454 | while (entry) |
455 | { | |
456 | entry->hook (cs1, cs2, entry->data); | |
457 | entry = entry->next; | |
458 | } | |
459 | } | |
460 | ||
461 | /* Register HOOK to be called with DATA on each duplicated node. */ | |
3dafb85c ML |
462 | cgraph_2node_hook_list * |
463 | symbol_table::add_cgraph_duplication_hook (cgraph_2node_hook hook, void *data) | |
9088c1cc | 464 | { |
3dafb85c ML |
465 | cgraph_2node_hook_list *entry; |
466 | cgraph_2node_hook_list **ptr = &m_first_cgraph_duplicated_hook; | |
9088c1cc | 467 | |
3dafb85c | 468 | entry = (cgraph_2node_hook_list *) xmalloc (sizeof (*entry)); |
9088c1cc MJ |
469 | entry->hook = hook; |
470 | entry->data = data; | |
471 | entry->next = NULL; | |
472 | while (*ptr) | |
473 | ptr = &(*ptr)->next; | |
474 | *ptr = entry; | |
475 | return entry; | |
476 | } | |
477 | ||
478 | /* Remove ENTRY from the list of hooks called on duplicating nodes. */ | |
479 | void | |
3dafb85c | 480 | symbol_table::remove_cgraph_duplication_hook (cgraph_2node_hook_list *entry) |
9088c1cc | 481 | { |
3dafb85c | 482 | cgraph_2node_hook_list **ptr = &m_first_cgraph_duplicated_hook; |
9088c1cc MJ |
483 | |
484 | while (*ptr != entry) | |
485 | ptr = &(*ptr)->next; | |
486 | *ptr = entry->next; | |
934cb78a | 487 | free (entry); |
9088c1cc MJ |
488 | } |
489 | ||
490 | /* Call all node duplication hooks. */ | |
b0d0a291 | 491 | void |
3dafb85c ML |
492 | symbol_table::call_cgraph_duplication_hooks (cgraph_node *node, |
493 | cgraph_node *node2) | |
9088c1cc | 494 | { |
3dafb85c | 495 | cgraph_2node_hook_list *entry = m_first_cgraph_duplicated_hook; |
9088c1cc MJ |
496 | while (entry) |
497 | { | |
3dafb85c | 498 | entry->hook (node, node2, entry->data); |
9088c1cc MJ |
499 | entry = entry->next; |
500 | } | |
501 | } | |
502 | ||
e72fcfe8 | 503 | /* Return cgraph node assigned to DECL. Create new one when needed. */ |
0550e7b7 | 504 | |
d52f5295 ML |
505 | cgraph_node * |
506 | cgraph_node::create (tree decl) | |
e72fcfe8 | 507 | { |
3dafb85c | 508 | cgraph_node *node = symtab->create_empty (); |
341c100f | 509 | gcc_assert (TREE_CODE (decl) == FUNCTION_DECL); |
988d1653 | 510 | |
67348ccc | 511 | node->decl = decl; |
1f6be682 | 512 | |
3995f3a2 JH |
513 | node->count = profile_count::uninitialized (); |
514 | ||
41dbbb37 | 515 | if ((flag_openacc || flag_openmp) |
1f6be682 IV |
516 | && lookup_attribute ("omp declare target", DECL_ATTRIBUTES (decl))) |
517 | { | |
518 | node->offloadable = 1; | |
1d899da2 TS |
519 | if (ENABLE_OFFLOADING) |
520 | g->have_offload = true; | |
1f6be682 IV |
521 | } |
522 | ||
aab778d3 L |
523 | if (lookup_attribute ("ifunc", DECL_ATTRIBUTES (decl))) |
524 | node->ifunc_resolver = true; | |
525 | ||
d52f5295 | 526 | node->register_symbol (); |
1ab24192 | 527 | |
5c2e00ee | 528 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == FUNCTION_DECL) |
e72fcfe8 | 529 | { |
d52f5295 | 530 | node->origin = cgraph_node::get_create (DECL_CONTEXT (decl)); |
e72fcfe8 JH |
531 | node->next_nested = node->origin->nested; |
532 | node->origin->nested = node; | |
533 | } | |
534 | return node; | |
535 | } | |
536 | ||
6f99e449 MJ |
537 | /* Try to find a call graph node for declaration DECL and if it does not exist |
538 | or if it corresponds to an inline clone, create a new one. */ | |
a358e188 | 539 | |
d52f5295 ML |
540 | cgraph_node * |
541 | cgraph_node::get_create (tree decl) | |
a358e188 | 542 | { |
3dafb85c | 543 | cgraph_node *first_clone = cgraph_node::get (decl); |
a358e188 | 544 | |
a62bfab5 | 545 | if (first_clone && !first_clone->inlined_to) |
6f99e449 | 546 | return first_clone; |
a358e188 | 547 | |
3dafb85c | 548 | cgraph_node *node = cgraph_node::create (decl); |
6f99e449 MJ |
549 | if (first_clone) |
550 | { | |
551 | first_clone->clone_of = node; | |
552 | node->clones = first_clone; | |
3c56d8d8 | 553 | node->order = first_clone->order; |
3dafb85c | 554 | symtab->symtab_prevail_in_asm_name_hash (node); |
aede2c10 | 555 | node->decl->decl_with_vis.symtab_node = node; |
6f99e449 MJ |
556 | if (dump_file) |
557 | fprintf (dump_file, "Introduced new external node " | |
464d0118 ML |
558 | "(%s) and turned into root of the clone tree.\n", |
559 | node->dump_name ()); | |
6f99e449 MJ |
560 | } |
561 | else if (dump_file) | |
562 | fprintf (dump_file, "Introduced new external node " | |
464d0118 | 563 | "(%s).\n", node->dump_name ()); |
6f99e449 | 564 | return node; |
a358e188 MJ |
565 | } |
566 | ||
87e7b310 | 567 | /* Mark ALIAS as an alias to DECL. DECL_NODE is cgraph node representing |
073a8998 | 568 | the function body is associated with (not necessarily cgraph_node (DECL). */ |
b2583345 | 569 | |
d52f5295 ML |
570 | cgraph_node * |
571 | cgraph_node::create_alias (tree alias, tree target) | |
b2583345 | 572 | { |
d52f5295 | 573 | cgraph_node *alias_node; |
b2583345 | 574 | |
40a7fe1e JH |
575 | gcc_assert (TREE_CODE (target) == FUNCTION_DECL |
576 | || TREE_CODE (target) == IDENTIFIER_NODE); | |
b2583345 | 577 | gcc_assert (TREE_CODE (alias) == FUNCTION_DECL); |
d52f5295 | 578 | alias_node = cgraph_node::get_create (alias); |
67348ccc DM |
579 | gcc_assert (!alias_node->definition); |
580 | alias_node->alias_target = target; | |
581 | alias_node->definition = true; | |
582 | alias_node->alias = true; | |
08346abd | 583 | if (lookup_attribute ("weakref", DECL_ATTRIBUTES (alias)) != NULL) |
71e54687 | 584 | alias_node->transparent_alias = alias_node->weakref = true; |
aab778d3 L |
585 | if (lookup_attribute ("ifunc", DECL_ATTRIBUTES (alias))) |
586 | alias_node->ifunc_resolver = true; | |
6744a6ab JH |
587 | return alias_node; |
588 | } | |
589 | ||
051f8cc6 | 590 | /* Attempt to mark ALIAS as an alias to DECL. Return alias node if successful |
a358e188 | 591 | and NULL otherwise. |
6744a6ab | 592 | Same body aliases are output whenever the body of DECL is output, |
d52f5295 ML |
593 | and cgraph_node::get (ALIAS) transparently returns |
594 | cgraph_node::get (DECL). */ | |
6744a6ab | 595 | |
3dafb85c | 596 | cgraph_node * |
d52f5295 | 597 | cgraph_node::create_same_body_alias (tree alias, tree decl) |
6744a6ab | 598 | { |
3dafb85c | 599 | cgraph_node *n; |
a8b522b4 | 600 | |
6744a6ab | 601 | /* If aliases aren't supported by the assembler, fail. */ |
a8b522b4 ML |
602 | if (!TARGET_SUPPORTS_ALIASES) |
603 | return NULL; | |
604 | ||
39e2db00 JH |
605 | /* Langhooks can create same body aliases of symbols not defined. |
606 | Those are useless. Drop them on the floor. */ | |
3dafb85c | 607 | if (symtab->global_info_ready) |
39e2db00 | 608 | return NULL; |
6744a6ab | 609 | |
d52f5295 | 610 | n = cgraph_node::create_alias (alias, decl); |
67348ccc | 611 | n->cpp_implicit_alias = true; |
3dafb85c | 612 | if (symtab->cpp_implicit_aliases_done) |
d52f5295 | 613 | n->resolve_alias (cgraph_node::get (decl)); |
39e2db00 | 614 | return n; |
6744a6ab JH |
615 | } |
616 | ||
051f8cc6 | 617 | /* Add thunk alias into callgraph. The alias declaration is ALIAS and it |
61502ca8 | 618 | aliases DECL with an adjustments made into the first parameter. |
a3e61d61 | 619 | See comments in struct cgraph_thunk_info for detail on the parameters. */ |
051f8cc6 | 620 | |
3dafb85c | 621 | cgraph_node * |
d52f5295 ML |
622 | cgraph_node::create_thunk (tree alias, tree, bool this_adjusting, |
623 | HOST_WIDE_INT fixed_offset, | |
624 | HOST_WIDE_INT virtual_value, | |
44662f68 | 625 | HOST_WIDE_INT indirect_offset, |
d52f5295 ML |
626 | tree virtual_offset, |
627 | tree real_alias) | |
6744a6ab | 628 | { |
3dafb85c | 629 | cgraph_node *node; |
6744a6ab | 630 | |
d52f5295 | 631 | node = cgraph_node::get (alias); |
6744a6ab | 632 | if (node) |
d52f5295 | 633 | node->reset (); |
24d047a3 | 634 | else |
d52f5295 | 635 | node = cgraph_node::create (alias); |
a3e61d61 PMR |
636 | |
637 | /* Make sure that if VIRTUAL_OFFSET is in sync with VIRTUAL_VALUE. */ | |
638 | gcc_checking_assert (virtual_offset | |
8e6cdc90 | 639 | ? virtual_value == wi::to_wide (virtual_offset) |
a3e61d61 PMR |
640 | : virtual_value == 0); |
641 | ||
6744a6ab | 642 | node->thunk.fixed_offset = fixed_offset; |
6744a6ab | 643 | node->thunk.virtual_value = virtual_value; |
44662f68 | 644 | node->thunk.indirect_offset = indirect_offset; |
6744a6ab | 645 | node->thunk.alias = real_alias; |
a3e61d61 PMR |
646 | node->thunk.this_adjusting = this_adjusting; |
647 | node->thunk.virtual_offset_p = virtual_offset != NULL; | |
6744a6ab | 648 | node->thunk.thunk_p = true; |
67348ccc | 649 | node->definition = true; |
c47d0034 | 650 | |
051f8cc6 | 651 | return node; |
b2583345 JJ |
652 | } |
653 | ||
bedb9fc0 RH |
654 | /* Return the cgraph node that has ASMNAME for its DECL_ASSEMBLER_NAME. |
655 | Return NULL if there's no such node. */ | |
656 | ||
d52f5295 ML |
657 | cgraph_node * |
658 | cgraph_node::get_for_asmname (tree asmname) | |
bedb9fc0 | 659 | { |
1ab24192 | 660 | /* We do not want to look at inline clones. */ |
3dafb85c | 661 | for (symtab_node *node = symtab_node::get_for_asmname (asmname); |
5d59b5e1 | 662 | node; |
67348ccc | 663 | node = node->next_sharing_asm_name) |
5d59b5e1 | 664 | { |
7de90a6c | 665 | cgraph_node *cn = dyn_cast <cgraph_node *> (node); |
a62bfab5 | 666 | if (cn && !cn->inlined_to) |
5d59b5e1 LC |
667 | return cn; |
668 | } | |
bedb9fc0 RH |
669 | return NULL; |
670 | } | |
671 | ||
6bdf3519 | 672 | /* Returns a hash value for X (which really is a cgraph_edge). */ |
70d539ce | 673 | |
2a22f99c TS |
674 | hashval_t |
675 | cgraph_edge_hasher::hash (cgraph_edge *e) | |
70d539ce | 676 | { |
40ff1364 RB |
677 | /* This is a really poor hash function, but it is what htab_hash_pointer |
678 | uses. */ | |
679 | return (hashval_t) ((intptr_t)e->call_stmt >> 3); | |
680 | } | |
681 | ||
682 | /* Returns a hash value for X (which really is a cgraph_edge). */ | |
683 | ||
684 | hashval_t | |
355fe088 | 685 | cgraph_edge_hasher::hash (gimple *call_stmt) |
40ff1364 RB |
686 | { |
687 | /* This is a really poor hash function, but it is what htab_hash_pointer | |
688 | uses. */ | |
689 | return (hashval_t) ((intptr_t)call_stmt >> 3); | |
70d539ce JH |
690 | } |
691 | ||
026c3cfd | 692 | /* Return nonzero if the call_stmt of cgraph_edge X is stmt *Y. */ |
70d539ce | 693 | |
2a22f99c | 694 | inline bool |
355fe088 | 695 | cgraph_edge_hasher::equal (cgraph_edge *x, gimple *y) |
70d539ce | 696 | { |
2a22f99c | 697 | return x->call_stmt == y; |
70d539ce JH |
698 | } |
699 | ||
e33c6cd6 MJ |
700 | /* Add call graph edge E to call site hash of its caller. */ |
701 | ||
042ae7d2 | 702 | static inline void |
3dafb85c | 703 | cgraph_update_edge_in_call_site_hash (cgraph_edge *e) |
042ae7d2 | 704 | { |
355fe088 | 705 | gimple *call = e->call_stmt; |
40ff1364 RB |
706 | *e->caller->call_site_hash->find_slot_with_hash |
707 | (call, cgraph_edge_hasher::hash (call), INSERT) = e; | |
042ae7d2 JH |
708 | } |
709 | ||
710 | /* Add call graph edge E to call site hash of its caller. */ | |
711 | ||
e33c6cd6 | 712 | static inline void |
3dafb85c | 713 | cgraph_add_edge_to_call_site_hash (cgraph_edge *e) |
e33c6cd6 | 714 | { |
042ae7d2 JH |
715 | /* There are two speculative edges for every statement (one direct, |
716 | one indirect); always hash the direct one. */ | |
717 | if (e->speculative && e->indirect_unknown_callee) | |
718 | return; | |
2a22f99c | 719 | cgraph_edge **slot = e->caller->call_site_hash->find_slot_with_hash |
40ff1364 | 720 | (e->call_stmt, cgraph_edge_hasher::hash (e->call_stmt), INSERT); |
042ae7d2 JH |
721 | if (*slot) |
722 | { | |
3dafb85c | 723 | gcc_assert (((cgraph_edge *)*slot)->speculative); |
bfa3b50a JH |
724 | if (e->callee) |
725 | *slot = e; | |
042ae7d2 JH |
726 | return; |
727 | } | |
728 | gcc_assert (!*slot || e->speculative); | |
e33c6cd6 MJ |
729 | *slot = e; |
730 | } | |
726a989a RB |
731 | |
732 | /* Return the callgraph edge representing the GIMPLE_CALL statement | |
733 | CALL_STMT. */ | |
734 | ||
d52f5295 | 735 | cgraph_edge * |
355fe088 | 736 | cgraph_node::get_edge (gimple *call_stmt) |
18c6ada9 | 737 | { |
3dafb85c | 738 | cgraph_edge *e, *e2; |
70d539ce JH |
739 | int n = 0; |
740 | ||
d52f5295 | 741 | if (call_site_hash) |
40ff1364 RB |
742 | return call_site_hash->find_with_hash |
743 | (call_stmt, cgraph_edge_hasher::hash (call_stmt)); | |
18c6ada9 JH |
744 | |
745 | /* This loop may turn out to be performance problem. In such case adding | |
746 | hashtables into call nodes with very many edges is probably best | |
2b8a92de | 747 | solution. It is not good idea to add pointer into CALL_EXPR itself |
18c6ada9 JH |
748 | because we want to make possible having multiple cgraph nodes representing |
749 | different clones of the same body before the body is actually cloned. */ | |
d52f5295 | 750 | for (e = callees; e; e = e->next_callee) |
70d539ce JH |
751 | { |
752 | if (e->call_stmt == call_stmt) | |
753 | break; | |
754 | n++; | |
755 | } | |
726a989a | 756 | |
e33c6cd6 | 757 | if (!e) |
d52f5295 | 758 | for (e = indirect_calls; e; e = e->next_callee) |
e33c6cd6 MJ |
759 | { |
760 | if (e->call_stmt == call_stmt) | |
761 | break; | |
762 | n++; | |
763 | } | |
764 | ||
70d539ce JH |
765 | if (n > 100) |
766 | { | |
2a22f99c | 767 | call_site_hash = hash_table<cgraph_edge_hasher>::create_ggc (120); |
d52f5295 | 768 | for (e2 = callees; e2; e2 = e2->next_callee) |
e33c6cd6 | 769 | cgraph_add_edge_to_call_site_hash (e2); |
d52f5295 | 770 | for (e2 = indirect_calls; e2; e2 = e2->next_callee) |
e33c6cd6 | 771 | cgraph_add_edge_to_call_site_hash (e2); |
70d539ce | 772 | } |
726a989a | 773 | |
18c6ada9 JH |
774 | return e; |
775 | } | |
776 | ||
726a989a | 777 | |
3dafb85c | 778 | /* Change field call_stmt of edge to NEW_STMT. |
042ae7d2 JH |
779 | If UPDATE_SPECULATIVE and E is any component of speculative |
780 | edge, then update all components. */ | |
0550e7b7 | 781 | |
70d539ce | 782 | void |
538dd0b7 | 783 | cgraph_edge::set_call_stmt (gcall *new_stmt, bool update_speculative) |
70d539ce | 784 | { |
e33c6cd6 MJ |
785 | tree decl; |
786 | ||
042ae7d2 JH |
787 | /* Speculative edges has three component, update all of them |
788 | when asked to. */ | |
3dafb85c | 789 | if (update_speculative && speculative) |
042ae7d2 | 790 | { |
3dafb85c ML |
791 | cgraph_edge *direct, *indirect; |
792 | ipa_ref *ref; | |
042ae7d2 | 793 | |
3dafb85c ML |
794 | speculative_call_info (direct, indirect, ref); |
795 | direct->set_call_stmt (new_stmt, false); | |
796 | indirect->set_call_stmt (new_stmt, false); | |
042ae7d2 JH |
797 | ref->stmt = new_stmt; |
798 | return; | |
799 | } | |
800 | ||
801 | /* Only direct speculative edges go to call_site_hash. */ | |
3dafb85c ML |
802 | if (caller->call_site_hash |
803 | && (!speculative || !indirect_unknown_callee)) | |
70d539ce | 804 | { |
2a22f99c | 805 | caller->call_site_hash->remove_elt_with_hash |
40ff1364 | 806 | (call_stmt, cgraph_edge_hasher::hash (call_stmt)); |
70d539ce | 807 | } |
e33c6cd6 | 808 | |
3dafb85c ML |
809 | cgraph_edge *e = this; |
810 | ||
811 | call_stmt = new_stmt; | |
812 | if (indirect_unknown_callee | |
e33c6cd6 MJ |
813 | && (decl = gimple_call_fndecl (new_stmt))) |
814 | { | |
815 | /* Constant propagation (and possibly also inlining?) can turn an | |
816 | indirect call into a direct one. */ | |
3dafb85c | 817 | cgraph_node *new_callee = cgraph_node::get (decl); |
e33c6cd6 | 818 | |
a358e188 | 819 | gcc_checking_assert (new_callee); |
3dafb85c | 820 | e = make_direct (new_callee); |
e33c6cd6 MJ |
821 | } |
822 | ||
36bbc05d MJ |
823 | function *fun = DECL_STRUCT_FUNCTION (e->caller->decl); |
824 | e->can_throw_external = stmt_can_throw_external (fun, new_stmt); | |
70d539ce | 825 | if (e->caller->call_site_hash) |
e33c6cd6 | 826 | cgraph_add_edge_to_call_site_hash (e); |
70d539ce JH |
827 | } |
828 | ||
e33c6cd6 MJ |
829 | /* Allocate a cgraph_edge structure and fill it with data according to the |
830 | parameters of which only CALLEE can be NULL (when creating an indirect call | |
3187c8a5 MJ |
831 | edge). CLONING_P should be set if properties that are copied from an |
832 | original edge should not be calculated. */ | |
e72fcfe8 | 833 | |
d52f5295 | 834 | cgraph_edge * |
3dafb85c | 835 | symbol_table::create_edge (cgraph_node *caller, cgraph_node *callee, |
1bad9c18 | 836 | gcall *call_stmt, profile_count count, |
3187c8a5 | 837 | bool indir_unknown_callee, bool cloning_p) |
e72fcfe8 | 838 | { |
d52f5295 | 839 | cgraph_edge *edge; |
18c6ada9 | 840 | |
d7f09764 DN |
841 | /* LTO does not actually have access to the call_stmt since these |
842 | have not been loaded yet. */ | |
843 | if (call_stmt) | |
844 | { | |
61502ca8 | 845 | /* This is a rather expensive check possibly triggering |
77a74ed7 | 846 | construction of call stmt hashtable. */ |
3dafb85c | 847 | cgraph_edge *e; |
b2b29377 MM |
848 | gcc_checking_assert (!(e = caller->get_edge (call_stmt)) |
849 | || e->speculative); | |
18c6ada9 | 850 | |
d7f09764 DN |
851 | gcc_assert (is_gimple_call (call_stmt)); |
852 | } | |
b58b1157 | 853 | |
fe248a88 ML |
854 | edge = ggc_alloc<cgraph_edge> (); |
855 | edge->m_summary_id = -1; | |
3dafb85c ML |
856 | edges_count++; |
857 | ||
8b25212d ML |
858 | gcc_assert (++edges_max_uid != 0); |
859 | edge->m_uid = edges_max_uid; | |
18c6ada9 | 860 | edge->aux = NULL; |
e72fcfe8 JH |
861 | edge->caller = caller; |
862 | edge->callee = callee; | |
e33c6cd6 MJ |
863 | edge->prev_caller = NULL; |
864 | edge->next_caller = NULL; | |
865 | edge->prev_callee = NULL; | |
866 | edge->next_callee = NULL; | |
042ae7d2 | 867 | edge->lto_stmt_uid = 0; |
e33c6cd6 | 868 | |
1bad9c18 | 869 | edge->count = count; |
e0704a46 | 870 | edge->call_stmt = call_stmt; |
3187c8a5 MJ |
871 | edge->indirect_info = NULL; |
872 | edge->indirect_inlining_edge = 0; | |
873 | edge->speculative = false; | |
874 | edge->indirect_unknown_callee = indir_unknown_callee; | |
875 | if (call_stmt && caller->call_site_hash) | |
876 | cgraph_add_edge_to_call_site_hash (edge); | |
877 | ||
878 | if (cloning_p) | |
879 | return edge; | |
880 | ||
9f3f7d13 | 881 | edge->can_throw_external |
36bbc05d MJ |
882 | = call_stmt ? stmt_can_throw_external (DECL_STRUCT_FUNCTION (caller->decl), |
883 | call_stmt) : false; | |
73136074 MJ |
884 | edge->inline_failed = CIF_FUNCTION_NOT_CONSIDERED; |
885 | edge->call_stmt_cannot_inline_p = false; | |
e33c6cd6 | 886 | |
a6b1490d JH |
887 | if (opt_for_fn (edge->caller->decl, flag_devirtualize) |
888 | && call_stmt && DECL_STRUCT_FUNCTION (caller->decl)) | |
f9bb202b JH |
889 | edge->in_polymorphic_cdtor |
890 | = decl_maybe_in_construction_p (NULL, NULL, call_stmt, | |
891 | caller->decl); | |
892 | else | |
893 | edge->in_polymorphic_cdtor = caller->thunk.thunk_p; | |
e33c6cd6 MJ |
894 | |
895 | return edge; | |
896 | } | |
897 | ||
3187c8a5 MJ |
898 | /* Create edge from a given function to CALLEE in the cgraph. CLONING_P should |
899 | be set if properties that are copied from an original edge should not be | |
900 | calculated. */ | |
e33c6cd6 | 901 | |
3dafb85c ML |
902 | cgraph_edge * |
903 | cgraph_node::create_edge (cgraph_node *callee, | |
3187c8a5 | 904 | gcall *call_stmt, profile_count count, bool cloning_p) |
e33c6cd6 | 905 | { |
3dafb85c | 906 | cgraph_edge *edge = symtab->create_edge (this, callee, call_stmt, count, |
3187c8a5 | 907 | false, cloning_p); |
e33c6cd6 | 908 | |
3187c8a5 MJ |
909 | if (!cloning_p) |
910 | initialize_inline_failed (edge); | |
e33c6cd6 | 911 | |
e72fcfe8 | 912 | edge->next_caller = callee->callers; |
2563c224 RG |
913 | if (callee->callers) |
914 | callee->callers->prev_caller = edge; | |
d52f5295 ML |
915 | edge->next_callee = callees; |
916 | if (callees) | |
917 | callees->prev_callee = edge; | |
918 | callees = edge; | |
e72fcfe8 | 919 | callee->callers = edge; |
3dc9eaa6 | 920 | |
e33c6cd6 MJ |
921 | return edge; |
922 | } | |
923 | ||
ce47fda3 MJ |
924 | /* Allocate cgraph_indirect_call_info and set its fields to default values. */ |
925 | ||
3dafb85c | 926 | cgraph_indirect_call_info * |
ce47fda3 MJ |
927 | cgraph_allocate_init_indirect_info (void) |
928 | { | |
3dafb85c | 929 | cgraph_indirect_call_info *ii; |
ce47fda3 | 930 | |
766090c2 | 931 | ii = ggc_cleared_alloc<cgraph_indirect_call_info> (); |
ce47fda3 MJ |
932 | ii->param_index = -1; |
933 | return ii; | |
934 | } | |
e33c6cd6 MJ |
935 | |
936 | /* Create an indirect edge with a yet-undetermined callee where the call | |
937 | statement destination is a formal parameter of the caller with index | |
3187c8a5 MJ |
938 | PARAM_INDEX. CLONING_P should be set if properties that are copied from an |
939 | original edge should not be calculated and indirect_info structure should | |
940 | not be calculated. */ | |
e33c6cd6 | 941 | |
3dafb85c | 942 | cgraph_edge * |
538dd0b7 | 943 | cgraph_node::create_indirect_edge (gcall *call_stmt, int ecf_flags, |
1bad9c18 | 944 | profile_count count, |
3187c8a5 | 945 | bool cloning_p) |
e33c6cd6 | 946 | { |
3187c8a5 MJ |
947 | cgraph_edge *edge = symtab->create_edge (this, NULL, call_stmt, count, true, |
948 | cloning_p); | |
1d5755ef | 949 | tree target; |
e33c6cd6 | 950 | |
3187c8a5 MJ |
951 | if (!cloning_p) |
952 | initialize_inline_failed (edge); | |
3dc9eaa6 | 953 | |
ce47fda3 | 954 | edge->indirect_info = cgraph_allocate_init_indirect_info (); |
5f902d76 | 955 | edge->indirect_info->ecf_flags = ecf_flags; |
0127c169 | 956 | edge->indirect_info->vptr_changed = true; |
e33c6cd6 | 957 | |
1d5755ef | 958 | /* Record polymorphic call info. */ |
3187c8a5 | 959 | if (!cloning_p |
d34af022 | 960 | && call_stmt |
1d5755ef JH |
961 | && (target = gimple_call_fn (call_stmt)) |
962 | && virtual_method_call_p (target)) | |
963 | { | |
6f8091fc | 964 | ipa_polymorphic_call_context context (decl, target, call_stmt); |
1d5755ef JH |
965 | |
966 | /* Only record types can have virtual calls. */ | |
68377e53 | 967 | edge->indirect_info->polymorphic = true; |
1d5755ef | 968 | edge->indirect_info->param_index = -1; |
6f8091fc JH |
969 | edge->indirect_info->otr_token |
970 | = tree_to_uhwi (OBJ_TYPE_REF_TOKEN (target)); | |
971 | edge->indirect_info->otr_type = obj_type_ref_class (target); | |
972 | gcc_assert (TREE_CODE (edge->indirect_info->otr_type) == RECORD_TYPE); | |
ba392339 | 973 | edge->indirect_info->context = context; |
1d5755ef JH |
974 | } |
975 | ||
d52f5295 ML |
976 | edge->next_callee = indirect_calls; |
977 | if (indirect_calls) | |
978 | indirect_calls->prev_callee = edge; | |
979 | indirect_calls = edge; | |
e33c6cd6 | 980 | |
e72fcfe8 JH |
981 | return edge; |
982 | } | |
983 | ||
3dafb85c | 984 | /* Remove the edge from the list of the callees of the caller. */ |
2563c224 | 985 | |
3dafb85c ML |
986 | void |
987 | cgraph_edge::remove_caller (void) | |
2563c224 | 988 | { |
3dafb85c ML |
989 | if (prev_callee) |
990 | prev_callee->next_callee = next_callee; | |
991 | if (next_callee) | |
992 | next_callee->prev_callee = prev_callee; | |
993 | if (!prev_callee) | |
e33c6cd6 | 994 | { |
3dafb85c ML |
995 | if (indirect_unknown_callee) |
996 | caller->indirect_calls = next_callee; | |
e33c6cd6 | 997 | else |
3dafb85c | 998 | caller->callees = next_callee; |
e33c6cd6 | 999 | } |
3dafb85c | 1000 | if (caller->call_site_hash) |
40ff1364 RB |
1001 | caller->call_site_hash->remove_elt_with_hash |
1002 | (call_stmt, cgraph_edge_hasher::hash (call_stmt)); | |
2563c224 RG |
1003 | } |
1004 | ||
934cb78a MJ |
1005 | /* Put the edge onto the free list. */ |
1006 | ||
3dafb85c ML |
1007 | void |
1008 | symbol_table::free_edge (cgraph_edge *e) | |
934cb78a | 1009 | { |
fe248a88 ML |
1010 | edges_count--; |
1011 | if (e->m_summary_id != -1) | |
1012 | edge_released_summary_ids.safe_push (e->m_summary_id); | |
1013 | ||
042ae7d2 JH |
1014 | if (e->indirect_info) |
1015 | ggc_free (e->indirect_info); | |
fe248a88 | 1016 | ggc_free (e); |
934cb78a MJ |
1017 | } |
1018 | ||
3dafb85c | 1019 | /* Remove the edge in the cgraph. */ |
e72fcfe8 | 1020 | |
cb967da5 | 1021 | void |
3dafb85c | 1022 | cgraph_edge::remove (void) |
e72fcfe8 | 1023 | { |
934cb78a | 1024 | /* Call all edge removal hooks. */ |
3dafb85c | 1025 | symtab->call_edge_removal_hooks (this); |
934cb78a | 1026 | |
3dafb85c | 1027 | if (!indirect_unknown_callee) |
e33c6cd6 | 1028 | /* Remove from callers list of the callee. */ |
3dafb85c | 1029 | remove_callee (); |
2563c224 RG |
1030 | |
1031 | /* Remove from callees list of the callers. */ | |
3dafb85c | 1032 | remove_caller (); |
934cb78a MJ |
1033 | |
1034 | /* Put the edge onto the free list. */ | |
3dafb85c | 1035 | symtab->free_edge (this); |
e72fcfe8 JH |
1036 | } |
1037 | ||
3dafb85c | 1038 | /* Turn edge into speculative call calling N2. Update |
042ae7d2 JH |
1039 | the profile so the direct call is taken COUNT times |
1040 | with FREQUENCY. | |
1041 | ||
1042 | At clone materialization time, the indirect call E will | |
1043 | be expanded as: | |
1044 | ||
1045 | if (call_dest == N2) | |
1046 | n2 (); | |
1047 | else | |
1048 | call call_dest | |
1049 | ||
1050 | At this time the function just creates the direct call, | |
dfea3d6f JJ |
1051 | the reference representing the if conditional and attaches |
1052 | them all to the original indirect call statement. | |
042ae7d2 | 1053 | |
09ce3660 JH |
1054 | Return direct edge created. */ |
1055 | ||
3dafb85c | 1056 | cgraph_edge * |
1bad9c18 | 1057 | cgraph_edge::make_speculative (cgraph_node *n2, profile_count direct_count) |
042ae7d2 | 1058 | { |
3dafb85c ML |
1059 | cgraph_node *n = caller; |
1060 | ipa_ref *ref = NULL; | |
1061 | cgraph_edge *e2; | |
042ae7d2 JH |
1062 | |
1063 | if (dump_file) | |
464d0118 ML |
1064 | fprintf (dump_file, "Indirect call -> speculative call %s => %s\n", |
1065 | n->dump_name (), n2->dump_name ()); | |
3dafb85c | 1066 | speculative = true; |
1bad9c18 | 1067 | e2 = n->create_edge (n2, call_stmt, direct_count); |
042ae7d2 JH |
1068 | initialize_inline_failed (e2); |
1069 | e2->speculative = true; | |
67348ccc | 1070 | if (TREE_NOTHROW (n2->decl)) |
bfa3b50a JH |
1071 | e2->can_throw_external = false; |
1072 | else | |
3dafb85c ML |
1073 | e2->can_throw_external = can_throw_external; |
1074 | e2->lto_stmt_uid = lto_stmt_uid; | |
f9bb202b | 1075 | e2->in_polymorphic_cdtor = in_polymorphic_cdtor; |
3dafb85c | 1076 | count -= e2->count; |
3dafb85c ML |
1077 | symtab->call_edge_duplication_hooks (this, e2); |
1078 | ref = n->create_reference (n2, IPA_REF_ADDR, call_stmt); | |
1079 | ref->lto_stmt_uid = lto_stmt_uid; | |
1080 | ref->speculative = speculative; | |
d52f5295 | 1081 | n2->mark_address_taken (); |
09ce3660 | 1082 | return e2; |
042ae7d2 JH |
1083 | } |
1084 | ||
1085 | /* Speculative call consist of three components: | |
1086 | 1) an indirect edge representing the original call | |
1087 | 2) an direct edge representing the new call | |
1088 | 3) ADDR_EXPR reference representing the speculative check. | |
1089 | All three components are attached to single statement (the indirect | |
1090 | call) and if one of them exists, all of them must exist. | |
1091 | ||
3dafb85c | 1092 | Given speculative call edge, return all three components. |
042ae7d2 JH |
1093 | */ |
1094 | ||
1095 | void | |
3dafb85c ML |
1096 | cgraph_edge::speculative_call_info (cgraph_edge *&direct, |
1097 | cgraph_edge *&indirect, | |
1098 | ipa_ref *&reference) | |
042ae7d2 | 1099 | { |
3dafb85c | 1100 | ipa_ref *ref; |
042ae7d2 | 1101 | int i; |
3dafb85c ML |
1102 | cgraph_edge *e2; |
1103 | cgraph_edge *e = this; | |
042ae7d2 JH |
1104 | |
1105 | if (!e->indirect_unknown_callee) | |
1106 | for (e2 = e->caller->indirect_calls; | |
1107 | e2->call_stmt != e->call_stmt || e2->lto_stmt_uid != e->lto_stmt_uid; | |
1108 | e2 = e2->next_callee) | |
1109 | ; | |
1110 | else | |
1111 | { | |
1112 | e2 = e; | |
1113 | /* We can take advantage of the call stmt hash. */ | |
1114 | if (e2->call_stmt) | |
1115 | { | |
d52f5295 | 1116 | e = e->caller->get_edge (e2->call_stmt); |
09ce3660 | 1117 | gcc_assert (e->speculative && !e->indirect_unknown_callee); |
042ae7d2 JH |
1118 | } |
1119 | else | |
1120 | for (e = e->caller->callees; | |
d0b66480 JH |
1121 | e2->call_stmt != e->call_stmt |
1122 | || e2->lto_stmt_uid != e->lto_stmt_uid; | |
042ae7d2 JH |
1123 | e = e->next_callee) |
1124 | ; | |
1125 | } | |
1126 | gcc_assert (e->speculative && e2->speculative); | |
d0b66480 JH |
1127 | direct = e; |
1128 | indirect = e2; | |
042ae7d2 JH |
1129 | |
1130 | reference = NULL; | |
d122681a | 1131 | for (i = 0; e->caller->iterate_reference (i, ref); i++) |
042ae7d2 JH |
1132 | if (ref->speculative |
1133 | && ((ref->stmt && ref->stmt == e->call_stmt) | |
57292ce9 | 1134 | || (!ref->stmt && ref->lto_stmt_uid == e->lto_stmt_uid))) |
042ae7d2 JH |
1135 | { |
1136 | reference = ref; | |
1137 | break; | |
1138 | } | |
d0b66480 JH |
1139 | |
1140 | /* Speculative edge always consist of all three components - direct edge, | |
1141 | indirect and reference. */ | |
1142 | ||
1143 | gcc_assert (e && e2 && ref); | |
042ae7d2 JH |
1144 | } |
1145 | ||
dfea3d6f | 1146 | /* Speculative call edge turned out to be direct call to CALLEE_DECL. |
042ae7d2 JH |
1147 | Remove the speculative call sequence and return edge representing the call. |
1148 | It is up to caller to redirect the call as appropriate. */ | |
1149 | ||
3dafb85c ML |
1150 | cgraph_edge * |
1151 | cgraph_edge::resolve_speculation (tree callee_decl) | |
042ae7d2 | 1152 | { |
3dafb85c ML |
1153 | cgraph_edge *edge = this; |
1154 | cgraph_edge *e2; | |
1155 | ipa_ref *ref; | |
042ae7d2 JH |
1156 | |
1157 | gcc_assert (edge->speculative); | |
3dafb85c | 1158 | edge->speculative_call_info (e2, edge, ref); |
123485ca | 1159 | if (!callee_decl |
d52f5295 ML |
1160 | || !ref->referred->semantically_equivalent_p |
1161 | (symtab_node::get (callee_decl))) | |
042ae7d2 JH |
1162 | { |
1163 | if (dump_file) | |
1164 | { | |
09ce3660 JH |
1165 | if (callee_decl) |
1166 | { | |
464d0118 | 1167 | fprintf (dump_file, "Speculative indirect call %s => %s has " |
09ce3660 | 1168 | "turned out to have contradicting known target ", |
464d0118 ML |
1169 | edge->caller->dump_name (), |
1170 | e2->callee->dump_name ()); | |
ef6cb4c7 | 1171 | print_generic_expr (dump_file, callee_decl); |
09ce3660 JH |
1172 | fprintf (dump_file, "\n"); |
1173 | } | |
1174 | else | |
1175 | { | |
464d0118 ML |
1176 | fprintf (dump_file, "Removing speculative call %s => %s\n", |
1177 | edge->caller->dump_name (), | |
1178 | e2->callee->dump_name ()); | |
09ce3660 | 1179 | } |
042ae7d2 JH |
1180 | } |
1181 | } | |
1182 | else | |
1183 | { | |
3dafb85c | 1184 | cgraph_edge *tmp = edge; |
042ae7d2 JH |
1185 | if (dump_file) |
1186 | fprintf (dump_file, "Speculative call turned into direct call.\n"); | |
1187 | edge = e2; | |
1188 | e2 = tmp; | |
d0b66480 JH |
1189 | /* FIXME: If EDGE is inlined, we should scale up the frequencies and counts |
1190 | in the functions inlined through it. */ | |
042ae7d2 JH |
1191 | } |
1192 | edge->count += e2->count; | |
042ae7d2 JH |
1193 | edge->speculative = false; |
1194 | e2->speculative = false; | |
d122681a | 1195 | ref->remove_reference (); |
042ae7d2 | 1196 | if (e2->indirect_unknown_callee || e2->inline_failed) |
3dafb85c | 1197 | e2->remove (); |
042ae7d2 | 1198 | else |
d52f5295 | 1199 | e2->callee->remove_symbol_and_inline_clones (); |
042ae7d2 JH |
1200 | if (edge->caller->call_site_hash) |
1201 | cgraph_update_edge_in_call_site_hash (edge); | |
042ae7d2 JH |
1202 | return edge; |
1203 | } | |
1204 | ||
3dafb85c | 1205 | /* Make an indirect edge with an unknown callee an ordinary edge leading to |
ce47fda3 MJ |
1206 | CALLEE. DELTA is an integer constant that is to be added to the this |
1207 | pointer (first parameter) to compensate for skipping a thunk adjustment. */ | |
e33c6cd6 | 1208 | |
3dafb85c ML |
1209 | cgraph_edge * |
1210 | cgraph_edge::make_direct (cgraph_node *callee) | |
e33c6cd6 | 1211 | { |
3dafb85c ML |
1212 | cgraph_edge *edge = this; |
1213 | gcc_assert (indirect_unknown_callee); | |
042ae7d2 JH |
1214 | |
1215 | /* If we are redirecting speculative call, make it non-speculative. */ | |
3dafb85c | 1216 | if (indirect_unknown_callee && speculative) |
042ae7d2 | 1217 | { |
3dafb85c | 1218 | edge = edge->resolve_speculation (callee->decl); |
042ae7d2 JH |
1219 | |
1220 | /* On successful speculation just return the pre existing direct edge. */ | |
d9c425fb | 1221 | if (!edge->indirect_unknown_callee) |
042ae7d2 JH |
1222 | return edge; |
1223 | } | |
1224 | ||
3dafb85c ML |
1225 | indirect_unknown_callee = 0; |
1226 | ggc_free (indirect_info); | |
1227 | indirect_info = NULL; | |
e33c6cd6 MJ |
1228 | |
1229 | /* Get the edge out of the indirect edge list. */ | |
3dafb85c ML |
1230 | if (prev_callee) |
1231 | prev_callee->next_callee = next_callee; | |
1232 | if (next_callee) | |
1233 | next_callee->prev_callee = prev_callee; | |
1234 | if (!prev_callee) | |
1235 | caller->indirect_calls = next_callee; | |
e33c6cd6 MJ |
1236 | |
1237 | /* Put it into the normal callee list */ | |
3dafb85c ML |
1238 | prev_callee = NULL; |
1239 | next_callee = caller->callees; | |
1240 | if (caller->callees) | |
1241 | caller->callees->prev_callee = edge; | |
1242 | caller->callees = edge; | |
e33c6cd6 MJ |
1243 | |
1244 | /* Insert to callers list of the new callee. */ | |
90988f77 | 1245 | edge->set_callee (callee); |
e33c6cd6 MJ |
1246 | |
1247 | /* We need to re-determine the inlining status of the edge. */ | |
1248 | initialize_inline_failed (edge); | |
042ae7d2 | 1249 | return edge; |
2563c224 RG |
1250 | } |
1251 | ||
66a20fc2 JH |
1252 | /* If necessary, change the function declaration in the call statement |
1253 | associated with E so that it corresponds to the edge callee. */ | |
1254 | ||
355fe088 | 1255 | gimple * |
3dafb85c | 1256 | cgraph_edge::redirect_call_stmt_to_callee (void) |
66a20fc2 | 1257 | { |
3dafb85c ML |
1258 | cgraph_edge *e = this; |
1259 | ||
66a20fc2 | 1260 | tree decl = gimple_call_fndecl (e->call_stmt); |
538dd0b7 | 1261 | gcall *new_stmt; |
66a20fc2 | 1262 | gimple_stmt_iterator gsi; |
66a20fc2 | 1263 | |
042ae7d2 JH |
1264 | if (e->speculative) |
1265 | { | |
3dafb85c | 1266 | cgraph_edge *e2; |
538dd0b7 | 1267 | gcall *new_stmt; |
3dafb85c | 1268 | ipa_ref *ref; |
042ae7d2 | 1269 | |
3dafb85c | 1270 | e->speculative_call_info (e, e2, ref); |
a21e735e JH |
1271 | /* If there already is an direct call (i.e. as a result of inliner's |
1272 | substitution), forget about speculating. */ | |
eefe9a99 | 1273 | if (decl) |
3dafb85c | 1274 | e = e->resolve_speculation (decl); |
09ce3660 JH |
1275 | else |
1276 | { | |
73136074 | 1277 | /* Expand speculation into GIMPLE code. */ |
09ce3660 | 1278 | if (dump_file) |
3995f3a2 JH |
1279 | { |
1280 | fprintf (dump_file, | |
1281 | "Expanding speculative call of %s -> %s count: ", | |
1282 | e->caller->dump_name (), | |
1283 | e->callee->dump_name ()); | |
1284 | e->count.dump (dump_file); | |
1285 | fprintf (dump_file, "\n"); | |
1286 | } | |
042ae7d2 | 1287 | gcc_assert (e2->speculative); |
67348ccc | 1288 | push_cfun (DECL_STRUCT_FUNCTION (e->caller->decl)); |
109bb9be JH |
1289 | |
1290 | profile_probability prob = e->count.probability_in (e->count | |
1291 | + e2->count); | |
1bad9c18 | 1292 | if (!prob.initialized_p ()) |
109bb9be | 1293 | prob = profile_probability::even (); |
0b986c6a JH |
1294 | new_stmt = gimple_ic (e->call_stmt, |
1295 | dyn_cast<cgraph_node *> (ref->referred), | |
e7a74006 | 1296 | prob); |
042ae7d2 | 1297 | e->speculative = false; |
d52f5295 ML |
1298 | e->caller->set_call_stmt_including_clones (e->call_stmt, new_stmt, |
1299 | false); | |
8b2d991b | 1300 | e->count = gimple_bb (e->call_stmt)->count; |
042ae7d2 | 1301 | e2->speculative = false; |
8b2d991b | 1302 | e2->count = gimple_bb (e2->call_stmt)->count; |
042ae7d2 JH |
1303 | ref->speculative = false; |
1304 | ref->stmt = NULL; | |
1305 | /* Indirect edges are not both in the call site hash. | |
1306 | get it updated. */ | |
1307 | if (e->caller->call_site_hash) | |
1308 | cgraph_update_edge_in_call_site_hash (e2); | |
1309 | pop_cfun (); | |
1310 | /* Continue redirecting E to proper target. */ | |
1311 | } | |
1312 | } | |
1313 | ||
8e9b2773 | 1314 | |
66a20fc2 | 1315 | if (e->indirect_unknown_callee |
31db0fe0 | 1316 | || decl == e->callee->decl) |
66a20fc2 JH |
1317 | return e->call_stmt; |
1318 | ||
b2b29377 | 1319 | if (flag_checking && decl) |
66a20fc2 | 1320 | { |
b2b29377 | 1321 | cgraph_node *node = cgraph_node::get (decl); |
ff6686d2 | 1322 | gcc_assert (!node || !node->clone.param_adjustments); |
66a20fc2 | 1323 | } |
66a20fc2 | 1324 | |
3dafb85c | 1325 | if (symtab->dump_file) |
66a20fc2 | 1326 | { |
464d0118 ML |
1327 | fprintf (symtab->dump_file, "updating call of %s -> %s: ", |
1328 | e->caller->dump_name (), e->callee->dump_name ()); | |
3dafb85c | 1329 | print_gimple_stmt (symtab->dump_file, e->call_stmt, 0, dump_flags); |
ff6686d2 MJ |
1330 | if (e->callee->clone.param_adjustments) |
1331 | e->callee->clone.param_adjustments->dump (symtab->dump_file); | |
1332 | unsigned performed_len | |
1333 | = vec_safe_length (e->caller->clone.performed_splits); | |
1334 | if (performed_len > 0) | |
1335 | fprintf (symtab->dump_file, "Performed splits records:\n"); | |
1336 | for (unsigned i = 0; i < performed_len; i++) | |
66a20fc2 | 1337 | { |
ff6686d2 MJ |
1338 | ipa_param_performed_split *sm |
1339 | = &(*e->caller->clone.performed_splits)[i]; | |
1340 | print_node_brief (symtab->dump_file, " dummy_decl: ", sm->dummy_decl, | |
1341 | TDF_UID); | |
1342 | fprintf (symtab->dump_file, ", unit_offset: %u\n", sm->unit_offset); | |
66a20fc2 JH |
1343 | } |
1344 | } | |
1345 | ||
ff6686d2 | 1346 | if (ipa_param_adjustments *padjs = e->callee->clone.param_adjustments) |
66a20fc2 | 1347 | { |
ff6686d2 MJ |
1348 | /* We need to defer cleaning EH info on the new statement to |
1349 | fixup-cfg. We may not have dominator information at this point | |
1350 | and thus would end up with unreachable blocks and have no way | |
1351 | to communicate that we need to run CFG cleanup then. */ | |
1352 | int lp_nr = lookup_stmt_eh_lp (e->call_stmt); | |
1353 | if (lp_nr != 0) | |
1354 | remove_stmt_from_eh_lp (e->call_stmt); | |
66a20fc2 | 1355 | |
b0fd4d7e | 1356 | tree old_fntype = gimple_call_fntype (e->call_stmt); |
ff6686d2 MJ |
1357 | new_stmt = padjs->modify_call (e->call_stmt, |
1358 | e->caller->clone.performed_splits, | |
1359 | e->callee->decl, false); | |
b0fd4d7e MJ |
1360 | cgraph_node *origin = e->callee; |
1361 | while (origin->clone_of) | |
1362 | origin = origin->clone_of; | |
1363 | ||
1364 | if ((origin->former_clone_of | |
1365 | && old_fntype == TREE_TYPE (origin->former_clone_of)) | |
1366 | || old_fntype == TREE_TYPE (origin->decl)) | |
1367 | gimple_call_set_fntype (new_stmt, TREE_TYPE (e->callee->decl)); | |
1368 | else | |
1369 | { | |
ff6686d2 MJ |
1370 | tree new_fntype = padjs->build_new_function_type (old_fntype, true); |
1371 | gimple_call_set_fntype (new_stmt, new_fntype); | |
a49de7a4 JJ |
1372 | } |
1373 | ||
66a20fc2 | 1374 | if (lp_nr != 0) |
ff6686d2 | 1375 | add_stmt_to_eh_lp (new_stmt, lp_nr); |
66a20fc2 JH |
1376 | } |
1377 | else | |
1378 | { | |
1379 | new_stmt = e->call_stmt; | |
67348ccc | 1380 | gimple_call_set_fndecl (new_stmt, e->callee->decl); |
6a58ccca | 1381 | update_stmt_fn (DECL_STRUCT_FUNCTION (e->caller->decl), new_stmt); |
66a20fc2 JH |
1382 | } |
1383 | ||
1f91747b JJ |
1384 | /* If changing the call to __cxa_pure_virtual or similar noreturn function, |
1385 | adjust gimple_call_fntype too. */ | |
1386 | if (gimple_call_noreturn_p (new_stmt) | |
1387 | && VOID_TYPE_P (TREE_TYPE (TREE_TYPE (e->callee->decl))) | |
1388 | && TYPE_ARG_TYPES (TREE_TYPE (e->callee->decl)) | |
1389 | && (TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (e->callee->decl))) | |
1390 | == void_type_node)) | |
1391 | gimple_call_set_fntype (new_stmt, TREE_TYPE (e->callee->decl)); | |
1392 | ||
e6a54b01 | 1393 | /* If the call becomes noreturn, remove the LHS if possible. */ |
77f1efdb | 1394 | tree lhs = gimple_call_lhs (new_stmt); |
1f91747b JJ |
1395 | if (lhs |
1396 | && gimple_call_noreturn_p (new_stmt) | |
1397 | && (VOID_TYPE_P (TREE_TYPE (gimple_call_fntype (new_stmt))) | |
1398 | || should_remove_lhs_p (lhs))) | |
23a04216 JH |
1399 | { |
1400 | if (TREE_CODE (lhs) == SSA_NAME) | |
1401 | { | |
45b62594 RB |
1402 | tree var = create_tmp_reg_fn (DECL_STRUCT_FUNCTION (e->caller->decl), |
1403 | TREE_TYPE (lhs), NULL); | |
1404 | var = get_or_create_ssa_default_def | |
1405 | (DECL_STRUCT_FUNCTION (e->caller->decl), var); | |
355fe088 | 1406 | gimple *set_stmt = gimple_build_assign (lhs, var); |
23a04216 | 1407 | gsi = gsi_for_stmt (new_stmt); |
45b62594 RB |
1408 | gsi_insert_before_without_update (&gsi, set_stmt, GSI_SAME_STMT); |
1409 | update_stmt_fn (DECL_STRUCT_FUNCTION (e->caller->decl), set_stmt); | |
23a04216 JH |
1410 | } |
1411 | gimple_call_set_lhs (new_stmt, NULL_TREE); | |
1f91035f JH |
1412 | update_stmt_fn (DECL_STRUCT_FUNCTION (e->caller->decl), new_stmt); |
1413 | } | |
1414 | ||
1415 | /* If new callee has no static chain, remove it. */ | |
1416 | if (gimple_call_chain (new_stmt) && !DECL_STATIC_CHAIN (e->callee->decl)) | |
1417 | { | |
1418 | gimple_call_set_chain (new_stmt, NULL); | |
1419 | update_stmt_fn (DECL_STRUCT_FUNCTION (e->caller->decl), new_stmt); | |
23a04216 JH |
1420 | } |
1421 | ||
0b986c6a JH |
1422 | maybe_remove_unused_call_args (DECL_STRUCT_FUNCTION (e->caller->decl), |
1423 | new_stmt); | |
1424 | ||
d52f5295 | 1425 | e->caller->set_call_stmt_including_clones (e->call_stmt, new_stmt, false); |
66a20fc2 | 1426 | |
3dafb85c | 1427 | if (symtab->dump_file) |
66a20fc2 | 1428 | { |
3dafb85c ML |
1429 | fprintf (symtab->dump_file, " updated to:"); |
1430 | print_gimple_stmt (symtab->dump_file, e->call_stmt, 0, dump_flags); | |
66a20fc2 JH |
1431 | } |
1432 | return new_stmt; | |
1433 | } | |
726a989a RB |
1434 | |
1435 | /* Update or remove the corresponding cgraph edge if a GIMPLE_CALL | |
4b685e14 | 1436 | OLD_STMT changed into NEW_STMT. OLD_CALL is gimple_call_fndecl |
a9d24544 JJ |
1437 | of OLD_STMT if it was previously call statement. |
1438 | If NEW_STMT is NULL, the call has been dropped without any | |
1439 | replacement. */ | |
2bafad93 | 1440 | |
9187e02d | 1441 | static void |
3dafb85c | 1442 | cgraph_update_edges_for_call_stmt_node (cgraph_node *node, |
355fe088 TS |
1443 | gimple *old_stmt, tree old_call, |
1444 | gimple *new_stmt) | |
2bafad93 | 1445 | { |
a9d24544 JJ |
1446 | tree new_call = (new_stmt && is_gimple_call (new_stmt)) |
1447 | ? gimple_call_fndecl (new_stmt) : 0; | |
2bafad93 | 1448 | |
4b685e14 JH |
1449 | /* We are seeing indirect calls, then there is nothing to update. */ |
1450 | if (!new_call && !old_call) | |
1451 | return; | |
1452 | /* See if we turned indirect call into direct call or folded call to one builtin | |
61502ca8 | 1453 | into different builtin. */ |
2bafad93 JJ |
1454 | if (old_call != new_call) |
1455 | { | |
3dafb85c ML |
1456 | cgraph_edge *e = node->get_edge (old_stmt); |
1457 | cgraph_edge *ne = NULL; | |
3995f3a2 | 1458 | profile_count count; |
2bafad93 JJ |
1459 | |
1460 | if (e) | |
1461 | { | |
1f4eb0e9 | 1462 | /* Keep calls marked as dead dead. */ |
931c8e9a | 1463 | if (new_stmt && is_gimple_call (new_stmt) && e->callee |
3d78e008 | 1464 | && fndecl_built_in_p (e->callee->decl, BUILT_IN_UNREACHABLE)) |
1f4eb0e9 JH |
1465 | { |
1466 | node->get_edge (old_stmt)->set_call_stmt | |
1467 | (as_a <gcall *> (new_stmt)); | |
1468 | return; | |
1469 | } | |
e33c6cd6 MJ |
1470 | /* See if the edge is already there and has the correct callee. It |
1471 | might be so because of indirect inlining has already updated | |
97ba0040 JH |
1472 | it. We also might've cloned and redirected the edge. */ |
1473 | if (new_call && e->callee) | |
1474 | { | |
3dafb85c | 1475 | cgraph_node *callee = e->callee; |
97ba0040 JH |
1476 | while (callee) |
1477 | { | |
67348ccc | 1478 | if (callee->decl == new_call |
97ba0040 | 1479 | || callee->former_clone_of == new_call) |
eb14a79f | 1480 | { |
538dd0b7 | 1481 | e->set_call_stmt (as_a <gcall *> (new_stmt)); |
eb14a79f ML |
1482 | return; |
1483 | } | |
97ba0040 JH |
1484 | callee = callee->clone_of; |
1485 | } | |
1486 | } | |
4b685e14 JH |
1487 | |
1488 | /* Otherwise remove edge and create new one; we can't simply redirect | |
1489 | since function has changed, so inline plan and other information | |
1490 | attached to edge is invalid. */ | |
1bad9c18 | 1491 | count = e->count; |
2dbe8b70 | 1492 | if (e->indirect_unknown_callee || e->inline_failed) |
3dafb85c | 1493 | e->remove (); |
2dbe8b70 | 1494 | else |
d52f5295 | 1495 | e->callee->remove_symbol_and_inline_clones (); |
4b685e14 | 1496 | } |
a9d24544 | 1497 | else if (new_call) |
4b685e14 JH |
1498 | { |
1499 | /* We are seeing new direct call; compute profile info based on BB. */ | |
1500 | basic_block bb = gimple_bb (new_stmt); | |
1bad9c18 | 1501 | count = bb->count; |
2bafad93 | 1502 | } |
2bafad93 | 1503 | |
4b685e14 JH |
1504 | if (new_call) |
1505 | { | |
d52f5295 | 1506 | ne = node->create_edge (cgraph_node::get_create (new_call), |
1bad9c18 | 1507 | as_a <gcall *> (new_stmt), count); |
4b685e14 JH |
1508 | gcc_assert (ne->inline_failed); |
1509 | } | |
2bafad93 | 1510 | } |
4b685e14 JH |
1511 | /* We only updated the call stmt; update pointer in cgraph edge.. */ |
1512 | else if (old_stmt != new_stmt) | |
538dd0b7 | 1513 | node->get_edge (old_stmt)->set_call_stmt (as_a <gcall *> (new_stmt)); |
2bafad93 JJ |
1514 | } |
1515 | ||
9187e02d | 1516 | /* Update or remove the corresponding cgraph edge if a GIMPLE_CALL |
4b685e14 JH |
1517 | OLD_STMT changed into NEW_STMT. OLD_DECL is gimple_call_fndecl |
1518 | of OLD_STMT before it was updated (updating can happen inplace). */ | |
9187e02d JH |
1519 | |
1520 | void | |
355fe088 TS |
1521 | cgraph_update_edges_for_call_stmt (gimple *old_stmt, tree old_decl, |
1522 | gimple *new_stmt) | |
9187e02d | 1523 | { |
3dafb85c ML |
1524 | cgraph_node *orig = cgraph_node::get (cfun->decl); |
1525 | cgraph_node *node; | |
9187e02d | 1526 | |
a358e188 | 1527 | gcc_checking_assert (orig); |
4b685e14 | 1528 | cgraph_update_edges_for_call_stmt_node (orig, old_stmt, old_decl, new_stmt); |
9187e02d JH |
1529 | if (orig->clones) |
1530 | for (node = orig->clones; node != orig;) | |
1531 | { | |
4b685e14 | 1532 | cgraph_update_edges_for_call_stmt_node (node, old_stmt, old_decl, new_stmt); |
9187e02d JH |
1533 | if (node->clones) |
1534 | node = node->clones; | |
1535 | else if (node->next_sibling_clone) | |
1536 | node = node->next_sibling_clone; | |
1537 | else | |
1538 | { | |
1539 | while (node != orig && !node->next_sibling_clone) | |
1540 | node = node->clone_of; | |
1541 | if (node != orig) | |
1542 | node = node->next_sibling_clone; | |
1543 | } | |
1544 | } | |
1545 | } | |
1546 | ||
726a989a | 1547 | |
2563c224 RG |
1548 | /* Remove all callees from the node. */ |
1549 | ||
1550 | void | |
d52f5295 | 1551 | cgraph_node::remove_callees (void) |
2563c224 | 1552 | { |
3dafb85c | 1553 | cgraph_edge *e, *f; |
2563c224 RG |
1554 | |
1555 | /* It is sufficient to remove the edges from the lists of callers of | |
1556 | the callees. The callee list of the node can be zapped with one | |
1557 | assignment. */ | |
d52f5295 | 1558 | for (e = callees; e; e = f) |
9088c1cc | 1559 | { |
5c0466b5 | 1560 | f = e->next_callee; |
3dafb85c | 1561 | symtab->call_edge_removal_hooks (e); |
e33c6cd6 | 1562 | if (!e->indirect_unknown_callee) |
3dafb85c ML |
1563 | e->remove_callee (); |
1564 | symtab->free_edge (e); | |
9088c1cc | 1565 | } |
d52f5295 | 1566 | for (e = indirect_calls; e; e = f) |
5f902d76 JH |
1567 | { |
1568 | f = e->next_callee; | |
3dafb85c | 1569 | symtab->call_edge_removal_hooks (e); |
5f902d76 | 1570 | if (!e->indirect_unknown_callee) |
3dafb85c ML |
1571 | e->remove_callee (); |
1572 | symtab->free_edge (e); | |
5f902d76 | 1573 | } |
d52f5295 ML |
1574 | indirect_calls = NULL; |
1575 | callees = NULL; | |
1576 | if (call_site_hash) | |
70d539ce | 1577 | { |
2a22f99c | 1578 | call_site_hash->empty (); |
d52f5295 | 1579 | call_site_hash = NULL; |
70d539ce | 1580 | } |
2563c224 RG |
1581 | } |
1582 | ||
1583 | /* Remove all callers from the node. */ | |
1584 | ||
d52f5295 ML |
1585 | void |
1586 | cgraph_node::remove_callers (void) | |
2563c224 | 1587 | { |
3dafb85c | 1588 | cgraph_edge *e, *f; |
2563c224 RG |
1589 | |
1590 | /* It is sufficient to remove the edges from the lists of callees of | |
1591 | the callers. The caller list of the node can be zapped with one | |
1592 | assignment. */ | |
d52f5295 | 1593 | for (e = callers; e; e = f) |
9088c1cc | 1594 | { |
5c0466b5 | 1595 | f = e->next_caller; |
3dafb85c ML |
1596 | symtab->call_edge_removal_hooks (e); |
1597 | e->remove_caller (); | |
1598 | symtab->free_edge (e); | |
9088c1cc | 1599 | } |
d52f5295 | 1600 | callers = NULL; |
18c6ada9 JH |
1601 | } |
1602 | ||
49bde175 JH |
1603 | /* Helper function for cgraph_release_function_body and free_lang_data. |
1604 | It releases body from function DECL without having to inspect its | |
1605 | possibly non-existent symtab node. */ | |
3a40c18a JH |
1606 | |
1607 | void | |
49bde175 | 1608 | release_function_body (tree decl) |
3a40c18a | 1609 | { |
61183076 RB |
1610 | function *fn = DECL_STRUCT_FUNCTION (decl); |
1611 | if (fn) | |
3a40c18a | 1612 | { |
61183076 | 1613 | if (fn->cfg |
381cdae4 | 1614 | && loops_for_fn (fn)) |
936fc9ba | 1615 | { |
381cdae4 RB |
1616 | fn->curr_properties &= ~PROP_loops; |
1617 | loop_optimizer_finalize (fn); | |
1618 | } | |
1619 | if (fn->gimple_df) | |
1620 | { | |
1621 | delete_tree_ssa (fn); | |
1622 | fn->eh = NULL; | |
1623 | } | |
1624 | if (fn->cfg) | |
1625 | { | |
1626 | gcc_assert (!dom_info_available_p (fn, CDI_DOMINATORS)); | |
1627 | gcc_assert (!dom_info_available_p (fn, CDI_POST_DOMINATORS)); | |
1628 | delete_tree_cfg_annotations (fn); | |
1629 | clear_edges (fn); | |
1630 | fn->cfg = NULL; | |
936fc9ba | 1631 | } |
381cdae4 RB |
1632 | if (fn->value_histograms) |
1633 | free_histograms (fn); | |
49bde175 | 1634 | gimple_set_body (decl, NULL); |
936fc9ba JH |
1635 | /* Struct function hangs a lot of data that would leak if we didn't |
1636 | removed all pointers to it. */ | |
61183076 | 1637 | ggc_free (fn); |
49bde175 JH |
1638 | DECL_STRUCT_FUNCTION (decl) = NULL; |
1639 | } | |
1640 | DECL_SAVED_TREE (decl) = NULL; | |
1641 | } | |
1642 | ||
d52f5295 | 1643 | /* Release memory used to represent body of function. |
49bde175 JH |
1644 | Use this only for functions that are released before being translated to |
1645 | target code (i.e. RTL). Functions that are compiled to RTL and beyond | |
bf898b30 ML |
1646 | are free'd in final.c via free_after_compilation(). |
1647 | KEEP_ARGUMENTS are useful only if you want to rebuild body as thunk. */ | |
49bde175 JH |
1648 | |
1649 | void | |
bf898b30 | 1650 | cgraph_node::release_body (bool keep_arguments) |
49bde175 | 1651 | { |
d52f5295 | 1652 | ipa_transforms_to_apply.release (); |
3dafb85c | 1653 | if (!used_as_abstract_origin && symtab->state != PARSING) |
49bde175 | 1654 | { |
d52f5295 | 1655 | DECL_RESULT (decl) = NULL; |
bf898b30 ML |
1656 | |
1657 | if (!keep_arguments) | |
1658 | DECL_ARGUMENTS (decl) = NULL; | |
3a40c18a | 1659 | } |
026c3cfd AH |
1660 | /* If the node is abstract and needed, then do not clear |
1661 | DECL_INITIAL of its associated function declaration because it's | |
6b20f353 | 1662 | needed to emit debug info later. */ |
d52f5295 ML |
1663 | if (!used_as_abstract_origin && DECL_INITIAL (decl)) |
1664 | DECL_INITIAL (decl) = error_mark_node; | |
1665 | release_function_body (decl); | |
1666 | if (lto_file_data) | |
1c4db829 JH |
1667 | { |
1668 | lto_free_function_in_decl_state_for_node (this); | |
1669 | lto_file_data = NULL; | |
1670 | } | |
3a40c18a JH |
1671 | } |
1672 | ||
d52f5295 | 1673 | /* Remove function from symbol table. */ |
18d13f34 JH |
1674 | |
1675 | void | |
d52f5295 | 1676 | cgraph_node::remove (void) |
18d13f34 | 1677 | { |
0bdad123 ML |
1678 | if (symtab->ipa_clones_dump_file && symtab->cloned_nodes.contains (this)) |
1679 | fprintf (symtab->ipa_clones_dump_file, | |
1680 | "Callgraph removal;%s;%d;%s;%d;%d\n", asm_name (), order, | |
1681 | DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl), | |
1682 | DECL_SOURCE_COLUMN (decl)); | |
1683 | ||
3dafb85c | 1684 | symtab->call_cgraph_removal_hooks (this); |
d52f5295 ML |
1685 | remove_callers (); |
1686 | remove_callees (); | |
1687 | ipa_transforms_to_apply.release (); | |
9acb4592 | 1688 | delete_function_version (function_version ()); |
266ad5c8 | 1689 | |
96fc428c JH |
1690 | /* Incremental inlining access removed nodes stored in the postorder list. |
1691 | */ | |
d52f5295 ML |
1692 | force_output = false; |
1693 | forced_by_abi = false; | |
72bb85f8 | 1694 | cgraph_node *next; |
cc849505 ML |
1695 | for (cgraph_node *n = nested; n; n = next) |
1696 | { | |
1697 | next = n->next_nested; | |
ca30a539 | 1698 | n->origin = NULL; |
cc849505 ML |
1699 | n->next_nested = NULL; |
1700 | } | |
d52f5295 ML |
1701 | nested = NULL; |
1702 | if (origin) | |
18d13f34 | 1703 | { |
3dafb85c | 1704 | cgraph_node **node2 = &origin->nested; |
18d13f34 | 1705 | |
d52f5295 | 1706 | while (*node2 != this) |
18d13f34 | 1707 | node2 = &(*node2)->next_nested; |
d52f5295 | 1708 | *node2 = next_nested; |
18d13f34 | 1709 | } |
d52f5295 ML |
1710 | unregister (); |
1711 | if (prev_sibling_clone) | |
1712 | prev_sibling_clone->next_sibling_clone = next_sibling_clone; | |
1713 | else if (clone_of) | |
1714 | clone_of->clones = next_sibling_clone; | |
1715 | if (next_sibling_clone) | |
1716 | next_sibling_clone->prev_sibling_clone = prev_sibling_clone; | |
1717 | if (clones) | |
18c6ada9 | 1718 | { |
3dafb85c | 1719 | cgraph_node *n, *next; |
47cb0d7d | 1720 | |
d52f5295 | 1721 | if (clone_of) |
47cb0d7d | 1722 | { |
d52f5295 ML |
1723 | for (n = clones; n->next_sibling_clone; n = n->next_sibling_clone) |
1724 | n->clone_of = clone_of; | |
1725 | n->clone_of = clone_of; | |
1726 | n->next_sibling_clone = clone_of->clones; | |
1727 | if (clone_of->clones) | |
1728 | clone_of->clones->prev_sibling_clone = n; | |
1729 | clone_of->clones = clones; | |
47cb0d7d JH |
1730 | } |
1731 | else | |
1732 | { | |
66a20fc2 | 1733 | /* We are removing node with clones. This makes clones inconsistent, |
47cb0d7d JH |
1734 | but assume they will be removed subsequently and just keep clone |
1735 | tree intact. This can happen in unreachable function removal since | |
1736 | we remove unreachable functions in random order, not by bottom-up | |
1737 | walk of clone trees. */ | |
d52f5295 | 1738 | for (n = clones; n; n = next) |
47cb0d7d JH |
1739 | { |
1740 | next = n->next_sibling_clone; | |
1741 | n->next_sibling_clone = NULL; | |
1742 | n->prev_sibling_clone = NULL; | |
1743 | n->clone_of = NULL; | |
1744 | } | |
1745 | } | |
18c6ada9 JH |
1746 | } |
1747 | ||
c22cacf3 | 1748 | /* While all the clones are removed after being proceeded, the function |
4a76d91a JH |
1749 | itself is kept in the cgraph even after it is compiled. Check whether |
1750 | we are done with this body and reclaim it proactively if this is the case. | |
1751 | */ | |
3dafb85c | 1752 | if (symtab->state != LTO_STREAMING) |
4f63dfc6 | 1753 | { |
cc849505 | 1754 | cgraph_node *n = cgraph_node::get (decl); |
4f63dfc6 | 1755 | if (!n |
a62bfab5 | 1756 | || (!n->clones && !n->clone_of && !n->inlined_to |
1c4db829 | 1757 | && ((symtab->global_info_ready || in_lto_p) |
67348ccc DM |
1758 | && (TREE_ASM_WRITTEN (n->decl) |
1759 | || DECL_EXTERNAL (n->decl) | |
1760 | || !n->analyzed | |
1761 | || (!flag_wpa && n->in_other_partition))))) | |
d52f5295 | 1762 | release_body (); |
4f63dfc6 | 1763 | } |
1c4db829 JH |
1764 | else |
1765 | { | |
1766 | lto_free_function_in_decl_state_for_node (this); | |
1767 | lto_file_data = NULL; | |
1768 | } | |
1ab24192 | 1769 | |
d52f5295 ML |
1770 | decl = NULL; |
1771 | if (call_site_hash) | |
70d539ce | 1772 | { |
2a22f99c | 1773 | call_site_hash->empty (); |
d52f5295 | 1774 | call_site_hash = NULL; |
70d539ce | 1775 | } |
2fb16412 | 1776 | |
74644756 | 1777 | symtab->release_symbol (this); |
18d13f34 JH |
1778 | } |
1779 | ||
39ff5a96 JH |
1780 | /* Likewise indicate that a node is having address taken. */ |
1781 | ||
1782 | void | |
d52f5295 | 1783 | cgraph_node::mark_address_taken (void) |
39ff5a96 | 1784 | { |
4502fe8d MJ |
1785 | /* Indirect inlining can figure out that all uses of the address are |
1786 | inlined. */ | |
a62bfab5 | 1787 | if (inlined_to) |
4502fe8d MJ |
1788 | { |
1789 | gcc_assert (cfun->after_inlining); | |
d52f5295 | 1790 | gcc_assert (callers->indirect_inlining_edge); |
4502fe8d MJ |
1791 | return; |
1792 | } | |
39e2db00 JH |
1793 | /* FIXME: address_taken flag is used both as a shortcut for testing whether |
1794 | IPA_REF_ADDR reference exists (and thus it should be set on node | |
1795 | representing alias we take address of) and as a test whether address | |
1796 | of the object was taken (and thus it should be set on node alias is | |
1797 | referring to). We should remove the first use and the remove the | |
1798 | following set. */ | |
d52f5295 ML |
1799 | address_taken = 1; |
1800 | cgraph_node *node = ultimate_alias_target (); | |
67348ccc | 1801 | node->address_taken = 1; |
39ff5a96 JH |
1802 | } |
1803 | ||
87f94429 | 1804 | /* Return local info node for the compiled function. */ |
dafc5b82 | 1805 | |
87f94429 ML |
1806 | cgraph_node * |
1807 | cgraph_node::local_info_node (tree decl) | |
dafc5b82 | 1808 | { |
341c100f | 1809 | gcc_assert (TREE_CODE (decl) == FUNCTION_DECL); |
3dafb85c | 1810 | cgraph_node *node = get (decl); |
9f9ebcdf MJ |
1811 | if (!node) |
1812 | return NULL; | |
87f94429 | 1813 | return node->ultimate_alias_target (); |
dafc5b82 JH |
1814 | } |
1815 | ||
ef736163 | 1816 | /* Return RTL info for the compiled function. */ |
b255a036 | 1817 | |
3dafb85c | 1818 | cgraph_rtl_info * |
5a5a3bc5 | 1819 | cgraph_node::rtl_info (const_tree decl) |
b255a036 | 1820 | { |
341c100f | 1821 | gcc_assert (TREE_CODE (decl) == FUNCTION_DECL); |
3dafb85c | 1822 | cgraph_node *node = get (decl); |
4bd019b8 JH |
1823 | if (!node) |
1824 | return NULL; | |
fc15d9ec JJ |
1825 | enum availability avail; |
1826 | node = node->ultimate_alias_target (&avail); | |
1827 | if (decl != current_function_decl | |
1828 | && (avail < AVAIL_AVAILABLE | |
1829 | || (node->decl != current_function_decl | |
1830 | && !TREE_ASM_WRITTEN (node->decl)))) | |
b255a036 | 1831 | return NULL; |
fc15d9ec JJ |
1832 | /* Allocate if it doesn't exist. */ |
1833 | if (node->rtl == NULL) | |
5a5a3bc5 RS |
1834 | { |
1835 | node->rtl = ggc_cleared_alloc<cgraph_rtl_info> (); | |
aa29ed6d | 1836 | SET_HARD_REG_SET (node->rtl->function_used_regs); |
5a5a3bc5 | 1837 | } |
fc15d9ec | 1838 | return node->rtl; |
b255a036 JH |
1839 | } |
1840 | ||
61a05df1 JH |
1841 | /* Return a string describing the failure REASON. */ |
1842 | ||
1843 | const char* | |
1844 | cgraph_inline_failed_string (cgraph_inline_failed_t reason) | |
1845 | { | |
1846 | #undef DEFCIFCODE | |
1cf11770 | 1847 | #define DEFCIFCODE(code, type, string) string, |
61a05df1 JH |
1848 | |
1849 | static const char *cif_string_table[CIF_N_REASONS] = { | |
1850 | #include "cif-code.def" | |
1851 | }; | |
1852 | ||
1853 | /* Signedness of an enum type is implementation defined, so cast it | |
1854 | to unsigned before testing. */ | |
1855 | gcc_assert ((unsigned) reason < CIF_N_REASONS); | |
1856 | return cif_string_table[reason]; | |
1857 | } | |
1858 | ||
1cf11770 L |
1859 | /* Return a type describing the failure REASON. */ |
1860 | ||
1861 | cgraph_inline_failed_type_t | |
1862 | cgraph_inline_failed_type (cgraph_inline_failed_t reason) | |
1863 | { | |
1864 | #undef DEFCIFCODE | |
1865 | #define DEFCIFCODE(code, type, string) type, | |
1866 | ||
1867 | static cgraph_inline_failed_type_t cif_type_table[CIF_N_REASONS] = { | |
1868 | #include "cif-code.def" | |
1869 | }; | |
1870 | ||
1871 | /* Signedness of an enum type is implementation defined, so cast it | |
1872 | to unsigned before testing. */ | |
1873 | gcc_assert ((unsigned) reason < CIF_N_REASONS); | |
1874 | return cif_type_table[reason]; | |
1875 | } | |
1876 | ||
6b02a499 | 1877 | /* Names used to print out the availability enum. */ |
8a4a83ed | 1878 | const char * const cgraph_availability_names[] = |
fa10beec | 1879 | {"unset", "not_available", "overwritable", "available", "local"}; |
6b02a499 | 1880 | |
90988f77 | 1881 | /* Output flags of edge to a file F. */ |
ba392339 | 1882 | |
90988f77 ML |
1883 | void |
1884 | cgraph_edge::dump_edge_flags (FILE *f) | |
ba392339 | 1885 | { |
90988f77 | 1886 | if (speculative) |
ba392339 | 1887 | fprintf (f, "(speculative) "); |
90988f77 | 1888 | if (!inline_failed) |
ba392339 | 1889 | fprintf (f, "(inlined) "); |
1a0bf5e1 JH |
1890 | if (call_stmt_cannot_inline_p) |
1891 | fprintf (f, "(call_stmt_cannot_inline_p) "); | |
90988f77 | 1892 | if (indirect_inlining_edge) |
ba392339 | 1893 | fprintf (f, "(indirect_inlining) "); |
3995f3a2 JH |
1894 | if (count.initialized_p ()) |
1895 | { | |
1896 | fprintf (f, "("); | |
1897 | count.dump (f); | |
1bad9c18 | 1898 | fprintf (f, ","); |
7349698e | 1899 | fprintf (f, "%.2f per call) ", sreal_frequency ().to_double ()); |
3995f3a2 | 1900 | } |
90988f77 | 1901 | if (can_throw_external) |
ba392339 JH |
1902 | fprintf (f, "(can throw external) "); |
1903 | } | |
c4e622b6 | 1904 | |
d52f5295 | 1905 | /* Dump call graph node to file F. */ |
c4e622b6 | 1906 | |
18c6ada9 | 1907 | void |
d52f5295 | 1908 | cgraph_node::dump (FILE *f) |
18c6ada9 | 1909 | { |
3dafb85c | 1910 | cgraph_edge *edge; |
e33c6cd6 | 1911 | |
d52f5295 | 1912 | dump_base (f); |
8f940ee6 | 1913 | |
a62bfab5 | 1914 | if (inlined_to) |
464d0118 ML |
1915 | fprintf (f, " Function %s is inline copy in %s\n", |
1916 | dump_name (), | |
a62bfab5 | 1917 | inlined_to->dump_name ()); |
d52f5295 | 1918 | if (clone_of) |
464d0118 | 1919 | fprintf (f, " Clone of %s\n", clone_of->dump_asm_name ()); |
3dafb85c | 1920 | if (symtab->function_flags_ready) |
8f940ee6 | 1921 | fprintf (f, " Availability: %s\n", |
d52f5295 | 1922 | cgraph_availability_names [get_availability ()]); |
8f940ee6 | 1923 | |
d52f5295 | 1924 | if (profile_id) |
634ab819 | 1925 | fprintf (f, " Profile id: %i\n", |
d52f5295 | 1926 | profile_id); |
b74d8dc4 JH |
1927 | if (unit_id) |
1928 | fprintf (f, " Unit id: %i\n", | |
1929 | unit_id); | |
9e57787b ML |
1930 | cgraph_function_version_info *vi = function_version (); |
1931 | if (vi != NULL) | |
1932 | { | |
1933 | fprintf (f, " Version info: "); | |
1934 | if (vi->prev != NULL) | |
1935 | { | |
1936 | fprintf (f, "prev: "); | |
464d0118 | 1937 | fprintf (f, "%s ", vi->prev->this_node->dump_asm_name ()); |
9e57787b ML |
1938 | } |
1939 | if (vi->next != NULL) | |
1940 | { | |
1941 | fprintf (f, "next: "); | |
464d0118 | 1942 | fprintf (f, "%s ", vi->next->this_node->dump_asm_name ()); |
9e57787b ML |
1943 | } |
1944 | if (vi->dispatcher_resolver != NULL_TREE) | |
1945 | fprintf (f, "dispatcher: %s", | |
1946 | lang_hooks.decl_printable_name (vi->dispatcher_resolver, 2)); | |
1947 | ||
1948 | fprintf (f, "\n"); | |
1949 | } | |
8f940ee6 | 1950 | fprintf (f, " Function flags:"); |
3995f3a2 JH |
1951 | if (count.initialized_p ()) |
1952 | { | |
19b55958 | 1953 | fprintf (f, " count:"); |
3995f3a2 JH |
1954 | count.dump (f); |
1955 | } | |
19b55958 ML |
1956 | if (tp_first_run > 0) |
1957 | fprintf (f, " first_run:%i", tp_first_run); | |
d52f5295 | 1958 | if (origin) |
19b55958 | 1959 | fprintf (f, " nested in:%s", origin->asm_name ()); |
d52f5295 | 1960 | if (gimple_has_body_p (decl)) |
726a989a | 1961 | fprintf (f, " body"); |
d52f5295 | 1962 | if (process) |
257eb6e3 | 1963 | fprintf (f, " process"); |
87f94429 | 1964 | if (local) |
18c6ada9 | 1965 | fprintf (f, " local"); |
87f94429 | 1966 | if (redefined_extern_inline) |
e7d6beb0 | 1967 | fprintf (f, " redefined_extern_inline"); |
d52f5295 | 1968 | if (only_called_at_startup) |
844db5d0 | 1969 | fprintf (f, " only_called_at_startup"); |
d52f5295 | 1970 | if (only_called_at_exit) |
844db5d0 | 1971 | fprintf (f, " only_called_at_exit"); |
d52f5295 | 1972 | if (tm_clone) |
0a35513e | 1973 | fprintf (f, " tm_clone"); |
c6cf6ef7 ML |
1974 | if (calls_comdat_local) |
1975 | fprintf (f, " calls_comdat_local"); | |
b84d4347 ML |
1976 | if (icf_merged) |
1977 | fprintf (f, " icf_merged"); | |
88636b62 JH |
1978 | if (merged_comdat) |
1979 | fprintf (f, " merged_comdat"); | |
b74d8dc4 JH |
1980 | if (merged_extern_inline) |
1981 | fprintf (f, " merged_extern_inline"); | |
4f4ada6a JH |
1982 | if (split_part) |
1983 | fprintf (f, " split_part"); | |
1984 | if (indirect_call_target) | |
1985 | fprintf (f, " indirect_call_target"); | |
8413ca87 JJ |
1986 | if (nonfreeing_fn) |
1987 | fprintf (f, " nonfreeing_fn"); | |
d52f5295 ML |
1988 | if (DECL_STATIC_CONSTRUCTOR (decl)) |
1989 | fprintf (f," static_constructor (priority:%i)", get_init_priority ()); | |
1990 | if (DECL_STATIC_DESTRUCTOR (decl)) | |
1991 | fprintf (f," static_destructor (priority:%i)", get_fini_priority ()); | |
a89bd7d2 JH |
1992 | if (frequency == NODE_FREQUENCY_HOT) |
1993 | fprintf (f, " hot"); | |
1994 | if (frequency == NODE_FREQUENCY_UNLIKELY_EXECUTED) | |
1995 | fprintf (f, " unlikely_executed"); | |
1996 | if (frequency == NODE_FREQUENCY_EXECUTED_ONCE) | |
1997 | fprintf (f, " executed_once"); | |
a89bd7d2 JH |
1998 | if (opt_for_fn (decl, optimize_size)) |
1999 | fprintf (f, " optimize_size"); | |
a79b7ec5 TV |
2000 | if (parallelized_function) |
2001 | fprintf (f, " parallelized_function"); | |
3a961aea ML |
2002 | if (DECL_IS_OPERATOR_NEW_P (decl)) |
2003 | fprintf (f, " operator_new"); | |
2004 | if (DECL_IS_OPERATOR_DELETE_P (decl)) | |
2005 | fprintf (f, " operator_delete"); | |
2006 | ||
18c6ada9 | 2007 | |
c47d0034 JH |
2008 | fprintf (f, "\n"); |
2009 | ||
d52f5295 | 2010 | if (thunk.thunk_p) |
c47d0034 | 2011 | { |
40a7fe1e | 2012 | fprintf (f, " Thunk"); |
d52f5295 | 2013 | if (thunk.alias) |
19b55958 | 2014 | fprintf (f, " of %s (asm:%s)", |
d52f5295 ML |
2015 | lang_hooks.decl_printable_name (thunk.alias, 2), |
2016 | IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (thunk.alias))); | |
44662f68 EB |
2017 | fprintf (f, " fixed offset %i virtual value %i indirect_offset %i " |
2018 | "has virtual offset %i\n", | |
d52f5295 ML |
2019 | (int)thunk.fixed_offset, |
2020 | (int)thunk.virtual_value, | |
44662f68 | 2021 | (int)thunk.indirect_offset, |
d52f5295 | 2022 | (int)thunk.virtual_offset_p); |
c47d0034 | 2023 | } |
1738b522 | 2024 | else if (former_thunk_p ()) |
df2a91de MJ |
2025 | fprintf (f, " Former thunk fixed offset %i virtual value %i " |
2026 | "indirect_offset %i has virtual offset %i\n", | |
2027 | (int)thunk.fixed_offset, | |
2028 | (int)thunk.virtual_value, | |
2029 | (int)thunk.indirect_offset, | |
2030 | (int)thunk.virtual_offset_p); | |
d52f5295 ML |
2031 | if (alias && thunk.alias |
2032 | && DECL_P (thunk.alias)) | |
39e2db00 | 2033 | { |
8f940ee6 | 2034 | fprintf (f, " Alias of %s", |
d52f5295 ML |
2035 | lang_hooks.decl_printable_name (thunk.alias, 2)); |
2036 | if (DECL_ASSEMBLER_NAME_SET_P (thunk.alias)) | |
19b55958 | 2037 | fprintf (f, " (asm:%s)", |
d52f5295 | 2038 | IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (thunk.alias))); |
39e2db00 JH |
2039 | fprintf (f, "\n"); |
2040 | } | |
c47d0034 | 2041 | |
8f940ee6 | 2042 | fprintf (f, " Called by: "); |
c47d0034 | 2043 | |
7c41b76e | 2044 | profile_count sum = profile_count::zero (); |
d52f5295 | 2045 | for (edge = callers; edge; edge = edge->next_caller) |
18c6ada9 | 2046 | { |
464d0118 | 2047 | fprintf (f, "%s ", edge->caller->dump_name ()); |
90988f77 | 2048 | edge->dump_edge_flags (f); |
7c41b76e | 2049 | if (edge->count.initialized_p ()) |
d53a5d8b | 2050 | sum += edge->count.ipa (); |
18c6ada9 JH |
2051 | } |
2052 | ||
8f940ee6 | 2053 | fprintf (f, "\n Calls: "); |
d52f5295 | 2054 | for (edge = callees; edge; edge = edge->next_callee) |
18c6ada9 | 2055 | { |
464d0118 | 2056 | fprintf (f, "%s ", edge->callee->dump_name ()); |
90988f77 | 2057 | edge->dump_edge_flags (f); |
18c6ada9 JH |
2058 | } |
2059 | fprintf (f, "\n"); | |
6744a6ab | 2060 | |
1bad9c18 | 2061 | if (count.ipa ().initialized_p ()) |
7c41b76e JH |
2062 | { |
2063 | bool ok = true; | |
2064 | bool min = false; | |
2065 | ipa_ref *ref; | |
2066 | ||
2067 | FOR_EACH_ALIAS (this, ref) | |
2068 | if (dyn_cast <cgraph_node *> (ref->referring)->count.initialized_p ()) | |
1bad9c18 | 2069 | sum += dyn_cast <cgraph_node *> (ref->referring)->count.ipa (); |
7c41b76e | 2070 | |
a62bfab5 | 2071 | if (inlined_to |
7c41b76e JH |
2072 | || (symtab->state < EXPANSION |
2073 | && ultimate_alias_target () == this && only_called_directly_p ())) | |
d53a5d8b | 2074 | ok = !count.ipa ().differs_from_p (sum); |
1bad9c18 JH |
2075 | else if (count.ipa () > profile_count::from_gcov_type (100) |
2076 | && count.ipa () < sum.apply_scale (99, 100)) | |
7c41b76e JH |
2077 | ok = false, min = true; |
2078 | if (!ok) | |
2079 | { | |
2080 | fprintf (f, " Invalid sum of caller counts "); | |
2081 | sum.dump (f); | |
2082 | if (min) | |
2083 | fprintf (f, ", should be at most "); | |
2084 | else | |
2085 | fprintf (f, ", should be "); | |
d53a5d8b | 2086 | count.ipa ().dump (f); |
7c41b76e JH |
2087 | fprintf (f, "\n"); |
2088 | } | |
2089 | } | |
2090 | ||
d52f5295 | 2091 | for (edge = indirect_calls; edge; edge = edge->next_callee) |
ba392339 JH |
2092 | { |
2093 | if (edge->indirect_info->polymorphic) | |
2094 | { | |
2095 | fprintf (f, " Polymorphic indirect call of type "); | |
2096 | print_generic_expr (f, edge->indirect_info->otr_type, TDF_SLIM); | |
2097 | fprintf (f, " token:%i", (int) edge->indirect_info->otr_token); | |
2098 | } | |
2099 | else | |
2100 | fprintf (f, " Indirect call"); | |
90988f77 | 2101 | edge->dump_edge_flags (f); |
ba392339 JH |
2102 | if (edge->indirect_info->param_index != -1) |
2103 | { | |
2104 | fprintf (f, " of param:%i", edge->indirect_info->param_index); | |
2105 | if (edge->indirect_info->agg_contents) | |
2106 | fprintf (f, " loaded from %s %s at offset %i", | |
2107 | edge->indirect_info->member_ptr ? "member ptr" : "aggregate", | |
2108 | edge->indirect_info->by_ref ? "passed by reference":"", | |
2109 | (int)edge->indirect_info->offset); | |
0127c169 JH |
2110 | if (edge->indirect_info->vptr_changed) |
2111 | fprintf (f, " (vptr maybe changed)"); | |
ba392339 JH |
2112 | } |
2113 | fprintf (f, "\n"); | |
2114 | if (edge->indirect_info->polymorphic) | |
2115 | edge->indirect_info->context.dump (f); | |
2116 | } | |
18c6ada9 JH |
2117 | } |
2118 | ||
34e64622 GB |
2119 | /* Dump call graph node to file F in graphviz format. */ |
2120 | ||
2121 | void | |
2122 | cgraph_node::dump_graphviz (FILE *f) | |
2123 | { | |
2124 | cgraph_edge *edge; | |
2125 | ||
2126 | for (edge = callees; edge; edge = edge->next_callee) | |
2127 | { | |
2128 | cgraph_node *callee = edge->callee; | |
2129 | ||
51940760 | 2130 | fprintf (f, "\t\"%s\" -> \"%s\"\n", dump_name (), callee->dump_name ()); |
34e64622 GB |
2131 | } |
2132 | } | |
2133 | ||
2134 | ||
c4e622b6 DN |
2135 | /* Dump call graph node NODE to stderr. */ |
2136 | ||
24e47c76 | 2137 | DEBUG_FUNCTION void |
d52f5295 | 2138 | cgraph_node::debug (void) |
c4e622b6 | 2139 | { |
d52f5295 | 2140 | dump (stderr); |
c4e622b6 DN |
2141 | } |
2142 | ||
c4e622b6 | 2143 | /* Dump the callgraph to file F. */ |
e72fcfe8 JH |
2144 | |
2145 | void | |
d52f5295 | 2146 | cgraph_node::dump_cgraph (FILE *f) |
e72fcfe8 | 2147 | { |
3dafb85c | 2148 | cgraph_node *node; |
e72fcfe8 | 2149 | |
7d82fe7c | 2150 | fprintf (f, "callgraph:\n\n"); |
65c70e6b | 2151 | FOR_EACH_FUNCTION (node) |
d52f5295 | 2152 | node->dump (f); |
c4e622b6 DN |
2153 | } |
2154 | ||
1bb17c21 | 2155 | /* Return true when the DECL can possibly be inlined. */ |
d52f5295 | 2156 | |
1bb17c21 JH |
2157 | bool |
2158 | cgraph_function_possibly_inlined_p (tree decl) | |
2159 | { | |
3dafb85c | 2160 | if (!symtab->global_info_ready) |
e90acd93 | 2161 | return !DECL_UNINLINABLE (decl); |
6f312d18 | 2162 | return DECL_POSSIBLY_INLINED (decl); |
18c6ada9 JH |
2163 | } |
2164 | ||
d52f5295 | 2165 | /* cgraph_node is no longer nested function; update cgraph accordingly. */ |
8f235343 | 2166 | void |
d52f5295 | 2167 | cgraph_node::unnest (void) |
8f235343 | 2168 | { |
3dafb85c | 2169 | cgraph_node **node2 = &origin->nested; |
d52f5295 | 2170 | gcc_assert (origin); |
8f235343 | 2171 | |
d52f5295 | 2172 | while (*node2 != this) |
8f235343 | 2173 | node2 = &(*node2)->next_nested; |
d52f5295 ML |
2174 | *node2 = next_nested; |
2175 | origin = NULL; | |
8f235343 | 2176 | } |
6b02a499 JH |
2177 | |
2178 | /* Return function availability. See cgraph.h for description of individual | |
2179 | return values. */ | |
2180 | enum availability | |
f13fe18b | 2181 | cgraph_node::get_availability (symtab_node *ref) |
6b02a499 | 2182 | { |
f13fe18b JH |
2183 | if (ref) |
2184 | { | |
2185 | cgraph_node *cref = dyn_cast <cgraph_node *> (ref); | |
2186 | if (cref) | |
a62bfab5 | 2187 | ref = cref->inlined_to; |
f13fe18b | 2188 | } |
6b02a499 | 2189 | enum availability avail; |
d52f5295 | 2190 | if (!analyzed) |
6b02a499 | 2191 | avail = AVAIL_NOT_AVAILABLE; |
87f94429 | 2192 | else if (local) |
6b02a499 | 2193 | avail = AVAIL_LOCAL; |
a62bfab5 | 2194 | else if (inlined_to) |
f13fe18b | 2195 | avail = AVAIL_AVAILABLE; |
71e54687 | 2196 | else if (transparent_alias) |
f13fe18b | 2197 | ultimate_alias_target (&avail, ref); |
aab778d3 | 2198 | else if (ifunc_resolver |
036ea399 | 2199 | || lookup_attribute ("noipa", DECL_ATTRIBUTES (decl))) |
d52f5295 ML |
2200 | avail = AVAIL_INTERPOSABLE; |
2201 | else if (!externally_visible) | |
6b02a499 | 2202 | avail = AVAIL_AVAILABLE; |
f13fe18b | 2203 | /* If this is a reference from symbol itself and there are no aliases, we |
65c74eb2 | 2204 | may be sure that the symbol was not interposed by something else because |
f13fe18b JH |
2205 | the symbol itself would be unreachable otherwise. |
2206 | ||
2207 | Also comdat groups are always resolved in groups. */ | |
2208 | else if ((this == ref && !has_aliases_p ()) | |
2209 | || (ref && get_comdat_group () | |
2210 | && get_comdat_group () == ref->get_comdat_group ())) | |
2211 | avail = AVAIL_AVAILABLE; | |
61502ca8 NF |
2212 | /* Inline functions are safe to be analyzed even if their symbol can |
2213 | be overwritten at runtime. It is not meaningful to enforce any sane | |
9c582551 | 2214 | behavior on replacing inline function by different body. */ |
d52f5295 | 2215 | else if (DECL_DECLARED_INLINE_P (decl)) |
4a371c8d | 2216 | avail = AVAIL_AVAILABLE; |
6b02a499 JH |
2217 | |
2218 | /* If the function can be overwritten, return OVERWRITABLE. Take | |
2219 | care at least of two notable extensions - the COMDAT functions | |
2220 | used to share template instantiations in C++ (this is symmetric | |
2221 | to code cp_cannot_inline_tree_fn and probably shall be shared and | |
f13fe18b | 2222 | the inlinability hooks completely eliminated). */ |
4a371c8d | 2223 | |
d52f5295 ML |
2224 | else if (decl_replaceable_p (decl) && !DECL_EXTERNAL (decl)) |
2225 | avail = AVAIL_INTERPOSABLE; | |
6b02a499 JH |
2226 | else avail = AVAIL_AVAILABLE; |
2227 | ||
2228 | return avail; | |
2229 | } | |
2230 | ||
be330ed4 JH |
2231 | /* Worker for cgraph_node_can_be_local_p. */ |
2232 | static bool | |
3dafb85c | 2233 | cgraph_node_cannot_be_local_p_1 (cgraph_node *node, void *) |
be330ed4 | 2234 | { |
67348ccc | 2235 | return !(!node->force_output |
2dfd63de | 2236 | && !node->ifunc_resolver |
67348ccc DM |
2237 | && ((DECL_COMDAT (node->decl) |
2238 | && !node->forced_by_abi | |
d52f5295 | 2239 | && !node->used_from_object_file_p () |
67348ccc DM |
2240 | && !node->same_comdat_group) |
2241 | || !node->externally_visible)); | |
be330ed4 JH |
2242 | } |
2243 | ||
d52f5295 | 2244 | /* Return true if cgraph_node can be made local for API change. |
a550d677 MJ |
2245 | Extern inline functions and C++ COMDAT functions can be made local |
2246 | at the expense of possible code size growth if function is used in multiple | |
2247 | compilation units. */ | |
2248 | bool | |
d52f5295 | 2249 | cgraph_node::can_be_local_p (void) |
a550d677 | 2250 | { |
d52f5295 ML |
2251 | return (!address_taken |
2252 | && !call_for_symbol_thunks_and_aliases (cgraph_node_cannot_be_local_p_1, | |
2253 | NULL, true)); | |
a550d677 MJ |
2254 | } |
2255 | ||
6cbde2e3 | 2256 | /* Call callback on cgraph_node, thunks and aliases associated to cgraph_node. |
6b715bf6 | 2257 | When INCLUDE_OVERWRITABLE is false, overwritable symbols are |
6cbde2e3 BE |
2258 | skipped. When EXCLUDE_VIRTUAL_THUNKS is true, virtual thunks are |
2259 | skipped. */ | |
be330ed4 | 2260 | bool |
d52f5295 ML |
2261 | cgraph_node::call_for_symbol_thunks_and_aliases (bool (*callback) |
2262 | (cgraph_node *, void *), | |
2263 | void *data, | |
6cbde2e3 BE |
2264 | bool include_overwritable, |
2265 | bool exclude_virtual_thunks) | |
be330ed4 | 2266 | { |
3dafb85c ML |
2267 | cgraph_edge *e; |
2268 | ipa_ref *ref; | |
6b715bf6 | 2269 | enum availability avail = AVAIL_AVAILABLE; |
be330ed4 | 2270 | |
6b715bf6 JH |
2271 | if (include_overwritable |
2272 | || (avail = get_availability ()) > AVAIL_INTERPOSABLE) | |
2273 | { | |
2274 | if (callback (this, data)) | |
2275 | return true; | |
2276 | } | |
1ede94c5 JH |
2277 | FOR_EACH_ALIAS (this, ref) |
2278 | { | |
2279 | cgraph_node *alias = dyn_cast <cgraph_node *> (ref->referring); | |
2280 | if (include_overwritable | |
2281 | || alias->get_availability () > AVAIL_INTERPOSABLE) | |
2282 | if (alias->call_for_symbol_thunks_and_aliases (callback, data, | |
2283 | include_overwritable, | |
2284 | exclude_virtual_thunks)) | |
2285 | return true; | |
2286 | } | |
6b715bf6 | 2287 | if (avail <= AVAIL_INTERPOSABLE) |
69a4e898 | 2288 | return false; |
d52f5295 | 2289 | for (e = callers; e; e = e->next_caller) |
be330ed4 JH |
2290 | if (e->caller->thunk.thunk_p |
2291 | && (include_overwritable | |
6cbde2e3 BE |
2292 | || e->caller->get_availability () > AVAIL_INTERPOSABLE) |
2293 | && !(exclude_virtual_thunks | |
2294 | && e->caller->thunk.virtual_offset_p)) | |
d52f5295 | 2295 | if (e->caller->call_for_symbol_thunks_and_aliases (callback, data, |
6cbde2e3 BE |
2296 | include_overwritable, |
2297 | exclude_virtual_thunks)) | |
9aa3f5c5 | 2298 | return true; |
e55637b7 | 2299 | |
be330ed4 JH |
2300 | return false; |
2301 | } | |
2302 | ||
be330ed4 JH |
2303 | /* Worker to bring NODE local. */ |
2304 | ||
d52f5295 | 2305 | bool |
3dafb85c | 2306 | cgraph_node::make_local (cgraph_node *node, void *) |
be330ed4 | 2307 | { |
d52f5295 | 2308 | gcc_checking_assert (node->can_be_local_p ()); |
67348ccc | 2309 | if (DECL_COMDAT (node->decl) || DECL_EXTERNAL (node->decl)) |
a550d677 | 2310 | { |
d52f5295 | 2311 | node->make_decl_local (); |
da66d596 | 2312 | node->set_section (NULL); |
24d047a3 | 2313 | node->set_comdat_group (NULL); |
67348ccc DM |
2314 | node->externally_visible = false; |
2315 | node->forced_by_abi = false; | |
87f94429 | 2316 | node->local = true; |
da66d596 | 2317 | node->set_section (NULL); |
f1703a2e JH |
2318 | node->unique_name = ((node->resolution == LDPR_PREVAILING_DEF_IRONLY |
2319 | || node->resolution == LDPR_PREVAILING_DEF_IRONLY_EXP) | |
2320 | && !flag_incremental_link); | |
67348ccc | 2321 | node->resolution = LDPR_PREVAILING_DEF_IRONLY; |
d52f5295 | 2322 | gcc_assert (node->get_availability () == AVAIL_LOCAL); |
a550d677 | 2323 | } |
be330ed4 | 2324 | return false; |
a550d677 MJ |
2325 | } |
2326 | ||
d52f5295 | 2327 | /* Bring cgraph node local. */ |
be330ed4 JH |
2328 | |
2329 | void | |
d52f5295 | 2330 | cgraph_node::make_local (void) |
be330ed4 | 2331 | { |
d52f5295 | 2332 | call_for_symbol_thunks_and_aliases (cgraph_node::make_local, NULL, true); |
be330ed4 JH |
2333 | } |
2334 | ||
2335 | /* Worker to set nothrow flag. */ | |
2336 | ||
a2b056a3 JH |
2337 | static void |
2338 | set_nothrow_flag_1 (cgraph_node *node, bool nothrow, bool non_call, | |
2339 | bool *changed) | |
be330ed4 | 2340 | { |
3dafb85c | 2341 | cgraph_edge *e; |
71fb4f92 | 2342 | |
a2b056a3 JH |
2343 | if (nothrow && !TREE_NOTHROW (node->decl)) |
2344 | { | |
2345 | /* With non-call exceptions we can't say for sure if other function body | |
dfea3d6f | 2346 | was not possibly optimized to still throw. */ |
a2b056a3 JH |
2347 | if (!non_call || node->binds_to_current_def_p ()) |
2348 | { | |
2349 | TREE_NOTHROW (node->decl) = true; | |
2350 | *changed = true; | |
2351 | for (e = node->callers; e; e = e->next_caller) | |
2352 | e->can_throw_external = false; | |
2353 | } | |
2354 | } | |
2355 | else if (!nothrow && TREE_NOTHROW (node->decl)) | |
2356 | { | |
2357 | TREE_NOTHROW (node->decl) = false; | |
2358 | *changed = true; | |
2359 | } | |
2360 | ipa_ref *ref; | |
2361 | FOR_EACH_ALIAS (node, ref) | |
2362 | { | |
2363 | cgraph_node *alias = dyn_cast <cgraph_node *> (ref->referring); | |
2364 | if (!nothrow || alias->get_availability () > AVAIL_INTERPOSABLE) | |
2365 | set_nothrow_flag_1 (alias, nothrow, non_call, changed); | |
2366 | } | |
2367 | for (cgraph_edge *e = node->callers; e; e = e->next_caller) | |
2368 | if (e->caller->thunk.thunk_p | |
2369 | && (!nothrow || e->caller->get_availability () > AVAIL_INTERPOSABLE)) | |
2370 | set_nothrow_flag_1 (e->caller, nothrow, non_call, changed); | |
be330ed4 JH |
2371 | } |
2372 | ||
2373 | /* Set TREE_NOTHROW on NODE's decl and on aliases of NODE | |
20cdc2be JJ |
2374 | if any to NOTHROW. */ |
2375 | ||
a2b056a3 | 2376 | bool |
d52f5295 | 2377 | cgraph_node::set_nothrow_flag (bool nothrow) |
20cdc2be | 2378 | { |
a2b056a3 JH |
2379 | bool changed = false; |
2380 | bool non_call = opt_for_fn (decl, flag_non_call_exceptions); | |
2381 | ||
2382 | if (!nothrow || get_availability () > AVAIL_INTERPOSABLE) | |
2383 | set_nothrow_flag_1 (this, nothrow, non_call, &changed); | |
2384 | else | |
2385 | { | |
2386 | ipa_ref *ref; | |
2387 | ||
2388 | FOR_EACH_ALIAS (this, ref) | |
2389 | { | |
2390 | cgraph_node *alias = dyn_cast <cgraph_node *> (ref->referring); | |
2391 | if (!nothrow || alias->get_availability () > AVAIL_INTERPOSABLE) | |
2392 | set_nothrow_flag_1 (alias, nothrow, non_call, &changed); | |
2393 | } | |
2394 | } | |
2395 | return changed; | |
20cdc2be JJ |
2396 | } |
2397 | ||
0fab169b PK |
2398 | /* Worker to set malloc flag. */ |
2399 | static void | |
2400 | set_malloc_flag_1 (cgraph_node *node, bool malloc_p, bool *changed) | |
2401 | { | |
2402 | if (malloc_p && !DECL_IS_MALLOC (node->decl)) | |
2403 | { | |
2404 | DECL_IS_MALLOC (node->decl) = true; | |
2405 | *changed = true; | |
2406 | } | |
2407 | ||
2408 | ipa_ref *ref; | |
2409 | FOR_EACH_ALIAS (node, ref) | |
2410 | { | |
2411 | cgraph_node *alias = dyn_cast<cgraph_node *> (ref->referring); | |
2412 | if (!malloc_p || alias->get_availability () > AVAIL_INTERPOSABLE) | |
2413 | set_malloc_flag_1 (alias, malloc_p, changed); | |
2414 | } | |
2415 | ||
2416 | for (cgraph_edge *e = node->callers; e; e = e->next_caller) | |
2417 | if (e->caller->thunk.thunk_p | |
2418 | && (!malloc_p || e->caller->get_availability () > AVAIL_INTERPOSABLE)) | |
2419 | set_malloc_flag_1 (e->caller, malloc_p, changed); | |
2420 | } | |
2421 | ||
2422 | /* Set DECL_IS_MALLOC on NODE's decl and on NODE's aliases if any. */ | |
2423 | ||
2424 | bool | |
2425 | cgraph_node::set_malloc_flag (bool malloc_p) | |
2426 | { | |
2427 | bool changed = false; | |
2428 | ||
2429 | if (!malloc_p || get_availability () > AVAIL_INTERPOSABLE) | |
2430 | set_malloc_flag_1 (this, malloc_p, &changed); | |
2431 | else | |
2432 | { | |
2433 | ipa_ref *ref; | |
2434 | ||
2435 | FOR_EACH_ALIAS (this, ref) | |
2436 | { | |
2437 | cgraph_node *alias = dyn_cast<cgraph_node *> (ref->referring); | |
2438 | if (!malloc_p || alias->get_availability () > AVAIL_INTERPOSABLE) | |
2439 | set_malloc_flag_1 (alias, malloc_p, &changed); | |
2440 | } | |
2441 | } | |
2442 | return changed; | |
2443 | } | |
2444 | ||
69a4e898 | 2445 | /* Worker to set_const_flag. */ |
20cdc2be | 2446 | |
69a4e898 JH |
2447 | static void |
2448 | set_const_flag_1 (cgraph_node *node, bool set_const, bool looping, | |
2449 | bool *changed) | |
20cdc2be | 2450 | { |
530f3a1b JH |
2451 | /* Static constructors and destructors without a side effect can be |
2452 | optimized out. */ | |
69a4e898 | 2453 | if (set_const && !looping) |
530f3a1b | 2454 | { |
67348ccc | 2455 | if (DECL_STATIC_CONSTRUCTOR (node->decl)) |
69a4e898 JH |
2456 | { |
2457 | DECL_STATIC_CONSTRUCTOR (node->decl) = 0; | |
2458 | *changed = true; | |
2459 | } | |
67348ccc | 2460 | if (DECL_STATIC_DESTRUCTOR (node->decl)) |
69a4e898 JH |
2461 | { |
2462 | DECL_STATIC_DESTRUCTOR (node->decl) = 0; | |
2463 | *changed = true; | |
2464 | } | |
530f3a1b | 2465 | } |
69a4e898 JH |
2466 | if (!set_const) |
2467 | { | |
2468 | if (TREE_READONLY (node->decl)) | |
2469 | { | |
2470 | TREE_READONLY (node->decl) = 0; | |
2471 | DECL_LOOPING_CONST_OR_PURE_P (node->decl) = false; | |
2472 | *changed = true; | |
2473 | } | |
2474 | } | |
2475 | else | |
2476 | { | |
2477 | /* Consider function: | |
cc950f98 | 2478 | |
69a4e898 JH |
2479 | bool a(int *p) |
2480 | { | |
2481 | return *p==*p; | |
2482 | } | |
cc950f98 | 2483 | |
69a4e898 | 2484 | During early optimization we will turn this into: |
cc950f98 | 2485 | |
69a4e898 JH |
2486 | bool a(int *p) |
2487 | { | |
2488 | return true; | |
2489 | } | |
cc950f98 | 2490 | |
69a4e898 JH |
2491 | Now if this function will be detected as CONST however when interposed |
2492 | it may end up being just pure. We always must assume the worst | |
2493 | scenario here. */ | |
2494 | if (TREE_READONLY (node->decl)) | |
2495 | { | |
2496 | if (!looping && DECL_LOOPING_CONST_OR_PURE_P (node->decl)) | |
2497 | { | |
2498 | DECL_LOOPING_CONST_OR_PURE_P (node->decl) = false; | |
2499 | *changed = true; | |
2500 | } | |
2501 | } | |
2502 | else if (node->binds_to_current_def_p ()) | |
2503 | { | |
2504 | TREE_READONLY (node->decl) = true; | |
2505 | DECL_LOOPING_CONST_OR_PURE_P (node->decl) = looping; | |
2506 | DECL_PURE_P (node->decl) = false; | |
2507 | *changed = true; | |
2508 | } | |
2509 | else | |
2510 | { | |
2511 | if (dump_file && (dump_flags & TDF_DETAILS)) | |
2512 | fprintf (dump_file, "Dropping state to PURE because function does " | |
2513 | "not bind to current def.\n"); | |
2514 | if (!DECL_PURE_P (node->decl)) | |
2515 | { | |
2516 | DECL_PURE_P (node->decl) = true; | |
2517 | DECL_LOOPING_CONST_OR_PURE_P (node->decl) = looping; | |
2518 | *changed = true; | |
2519 | } | |
2520 | else if (!looping && DECL_LOOPING_CONST_OR_PURE_P (node->decl)) | |
2521 | { | |
2522 | DECL_LOOPING_CONST_OR_PURE_P (node->decl) = false; | |
2523 | *changed = true; | |
2524 | } | |
2525 | } | |
2526 | } | |
cc950f98 | 2527 | |
69a4e898 JH |
2528 | ipa_ref *ref; |
2529 | FOR_EACH_ALIAS (node, ref) | |
cc950f98 | 2530 | { |
69a4e898 JH |
2531 | cgraph_node *alias = dyn_cast <cgraph_node *> (ref->referring); |
2532 | if (!set_const || alias->get_availability () > AVAIL_INTERPOSABLE) | |
2533 | set_const_flag_1 (alias, set_const, looping, changed); | |
cc950f98 | 2534 | } |
69a4e898 JH |
2535 | for (cgraph_edge *e = node->callers; e; e = e->next_caller) |
2536 | if (e->caller->thunk.thunk_p | |
2537 | && (!set_const || e->caller->get_availability () > AVAIL_INTERPOSABLE)) | |
2538 | { | |
2539 | /* Virtual thunks access virtual offset in the vtable, so they can | |
2540 | only be pure, never const. */ | |
2541 | if (set_const | |
2542 | && (e->caller->thunk.virtual_offset_p | |
2543 | || !node->binds_to_current_def_p (e->caller))) | |
2544 | *changed |= e->caller->set_pure_flag (true, looping); | |
2545 | else | |
2546 | set_const_flag_1 (e->caller, set_const, looping, changed); | |
2547 | } | |
20cdc2be JJ |
2548 | } |
2549 | ||
69a4e898 JH |
2550 | /* If SET_CONST is true, mark function, aliases and thunks to be ECF_CONST. |
2551 | If SET_CONST if false, clear the flag. | |
20cdc2be | 2552 | |
69a4e898 | 2553 | When setting the flag be careful about possible interposition and |
dfea3d6f | 2554 | do not set the flag for functions that can be interposed and set pure |
69a4e898 JH |
2555 | flag for functions that can bind to other definition. |
2556 | ||
2557 | Return true if any change was done. */ | |
2558 | ||
2559 | bool | |
2560 | cgraph_node::set_const_flag (bool set_const, bool looping) | |
20cdc2be | 2561 | { |
69a4e898 JH |
2562 | bool changed = false; |
2563 | if (!set_const || get_availability () > AVAIL_INTERPOSABLE) | |
2564 | set_const_flag_1 (this, set_const, looping, &changed); | |
2565 | else | |
2566 | { | |
2567 | ipa_ref *ref; | |
2568 | ||
2569 | FOR_EACH_ALIAS (this, ref) | |
2570 | { | |
2571 | cgraph_node *alias = dyn_cast <cgraph_node *> (ref->referring); | |
2572 | if (!set_const || alias->get_availability () > AVAIL_INTERPOSABLE) | |
2573 | set_const_flag_1 (alias, set_const, looping, &changed); | |
2574 | } | |
2575 | } | |
2576 | return changed; | |
be330ed4 JH |
2577 | } |
2578 | ||
69a4e898 JH |
2579 | /* Info used by set_pure_flag_1. */ |
2580 | ||
a2b056a3 | 2581 | struct set_pure_flag_info |
69a4e898 JH |
2582 | { |
2583 | bool pure; | |
2584 | bool looping; | |
2585 | bool changed; | |
2586 | }; | |
2587 | ||
2588 | /* Worker to set_pure_flag. */ | |
be330ed4 JH |
2589 | |
2590 | static bool | |
69a4e898 | 2591 | set_pure_flag_1 (cgraph_node *node, void *data) |
be330ed4 | 2592 | { |
69a4e898 | 2593 | struct set_pure_flag_info *info = (struct set_pure_flag_info *)data; |
a1ffba98 | 2594 | /* Static constructors and destructors without a side effect can be |
530f3a1b | 2595 | optimized out. */ |
69a4e898 | 2596 | if (info->pure && !info->looping) |
530f3a1b | 2597 | { |
67348ccc | 2598 | if (DECL_STATIC_CONSTRUCTOR (node->decl)) |
69a4e898 JH |
2599 | { |
2600 | DECL_STATIC_CONSTRUCTOR (node->decl) = 0; | |
2601 | info->changed = true; | |
2602 | } | |
67348ccc | 2603 | if (DECL_STATIC_DESTRUCTOR (node->decl)) |
69a4e898 JH |
2604 | { |
2605 | DECL_STATIC_DESTRUCTOR (node->decl) = 0; | |
2606 | info->changed = true; | |
2607 | } | |
2608 | } | |
2609 | if (info->pure) | |
2610 | { | |
2611 | if (!DECL_PURE_P (node->decl) && !TREE_READONLY (node->decl)) | |
2612 | { | |
2613 | DECL_PURE_P (node->decl) = true; | |
2614 | DECL_LOOPING_CONST_OR_PURE_P (node->decl) = info->looping; | |
2615 | info->changed = true; | |
2616 | } | |
2617 | else if (DECL_LOOPING_CONST_OR_PURE_P (node->decl) | |
2618 | && !info->looping) | |
2619 | { | |
2620 | DECL_LOOPING_CONST_OR_PURE_P (node->decl) = false; | |
2621 | info->changed = true; | |
2622 | } | |
2623 | } | |
2624 | else | |
2625 | { | |
2626 | if (DECL_PURE_P (node->decl)) | |
2627 | { | |
2628 | DECL_PURE_P (node->decl) = false; | |
2629 | DECL_LOOPING_CONST_OR_PURE_P (node->decl) = false; | |
2630 | info->changed = true; | |
2631 | } | |
530f3a1b | 2632 | } |
be330ed4 | 2633 | return false; |
20cdc2be JJ |
2634 | } |
2635 | ||
d52f5295 | 2636 | /* Set DECL_PURE_P on cgraph_node's decl and on aliases of the node |
69a4e898 | 2637 | if any to PURE. |
be330ed4 | 2638 | |
69a4e898 JH |
2639 | When setting the flag, be careful about possible interposition. |
2640 | Return true if any change was done. */ | |
2641 | ||
2642 | bool | |
d52f5295 | 2643 | cgraph_node::set_pure_flag (bool pure, bool looping) |
fa5f5e27 | 2644 | { |
69a4e898 | 2645 | struct set_pure_flag_info info = {pure, looping, false}; |
69a4e898 JH |
2646 | call_for_symbol_thunks_and_aliases (set_pure_flag_1, &info, !pure, true); |
2647 | return info.changed; | |
be330ed4 | 2648 | } |
844db5d0 | 2649 | |
67914693 | 2650 | /* Return true when cgraph_node cannot return or throw and thus |
d56026c2 JH |
2651 | it is safe to ignore its side effects for IPA analysis. */ |
2652 | ||
2653 | bool | |
d52f5295 | 2654 | cgraph_node::cannot_return_p (void) |
d56026c2 | 2655 | { |
d52f5295 | 2656 | int flags = flags_from_decl_or_type (decl); |
a6b1490d | 2657 | if (!opt_for_fn (decl, flag_exceptions)) |
d56026c2 JH |
2658 | return (flags & ECF_NORETURN) != 0; |
2659 | else | |
2660 | return ((flags & (ECF_NORETURN | ECF_NOTHROW)) | |
2661 | == (ECF_NORETURN | ECF_NOTHROW)); | |
2662 | } | |
2663 | ||
67914693 | 2664 | /* Return true when call of edge cannot lead to return from caller |
d56026c2 JH |
2665 | and thus it is safe to ignore its side effects for IPA analysis |
2666 | when computing side effects of the caller. | |
2667 | FIXME: We could actually mark all edges that have no reaching | |
6626665f | 2668 | patch to the exit block or throw to get better results. */ |
d56026c2 | 2669 | bool |
3dafb85c | 2670 | cgraph_edge::cannot_lead_to_return_p (void) |
d56026c2 | 2671 | { |
3dafb85c | 2672 | if (caller->cannot_return_p ()) |
f10ea640 | 2673 | return true; |
3dafb85c | 2674 | if (indirect_unknown_callee) |
d56026c2 | 2675 | { |
3dafb85c | 2676 | int flags = indirect_info->ecf_flags; |
a6b1490d | 2677 | if (!opt_for_fn (caller->decl, flag_exceptions)) |
d56026c2 JH |
2678 | return (flags & ECF_NORETURN) != 0; |
2679 | else | |
2680 | return ((flags & (ECF_NORETURN | ECF_NOTHROW)) | |
2681 | == (ECF_NORETURN | ECF_NOTHROW)); | |
2682 | } | |
2683 | else | |
3dafb85c | 2684 | return callee->cannot_return_p (); |
d56026c2 JH |
2685 | } |
2686 | ||
bf321336 | 2687 | /* Return true if the edge may be considered hot. */ |
893479de AM |
2688 | |
2689 | bool | |
2690 | cgraph_edge::maybe_hot_p (void) | |
2691 | { | |
1bad9c18 | 2692 | if (!maybe_hot_count_p (NULL, count.ipa ())) |
893479de AM |
2693 | return false; |
2694 | if (caller->frequency == NODE_FREQUENCY_UNLIKELY_EXECUTED | |
2695 | || (callee | |
2696 | && callee->frequency == NODE_FREQUENCY_UNLIKELY_EXECUTED)) | |
2697 | return false; | |
2698 | if (caller->frequency > NODE_FREQUENCY_UNLIKELY_EXECUTED | |
2699 | && (callee | |
2700 | && callee->frequency <= NODE_FREQUENCY_EXECUTED_ONCE)) | |
2701 | return false; | |
a6b1490d JH |
2702 | if (opt_for_fn (caller->decl, optimize_size)) |
2703 | return false; | |
893479de AM |
2704 | if (caller->frequency == NODE_FREQUENCY_HOT) |
2705 | return true; | |
d07f74fa | 2706 | if (!count.initialized_p ()) |
3995f3a2 | 2707 | return true; |
d07f74fa JH |
2708 | cgraph_node *where = caller->inlined_to ? caller->inlined_to : caller; |
2709 | if (!where->count.initialized_p ()) | |
7349698e | 2710 | return false; |
d07f74fa JH |
2711 | if (caller->frequency == NODE_FREQUENCY_EXECUTED_ONCE) |
2712 | { | |
2713 | if (count.apply_scale (2, 1) < where->count.apply_scale (3, 1)) | |
2714 | return false; | |
2715 | } | |
028d4092 | 2716 | else if (count.apply_scale (param_hot_bb_frequency_fraction , 1) |
d07f74fa | 2717 | < where->count) |
893479de | 2718 | return false; |
893479de AM |
2719 | return true; |
2720 | } | |
2721 | ||
9aa3f5c5 JH |
2722 | /* Worker for cgraph_can_remove_if_no_direct_calls_p. */ |
2723 | ||
2724 | static bool | |
3dafb85c | 2725 | nonremovable_p (cgraph_node *node, void *) |
9aa3f5c5 | 2726 | { |
d52f5295 | 2727 | return !node->can_remove_if_no_direct_calls_and_refs_p (); |
9aa3f5c5 JH |
2728 | } |
2729 | ||
a6a543bf JH |
2730 | /* Return true if whole comdat group can be removed if there are no direct |
2731 | calls to THIS. */ | |
9aa3f5c5 JH |
2732 | |
2733 | bool | |
e0d514da | 2734 | cgraph_node::can_remove_if_no_direct_calls_p (bool will_inline) |
9aa3f5c5 | 2735 | { |
a6a543bf JH |
2736 | struct ipa_ref *ref; |
2737 | ||
2738 | /* For local symbols or non-comdat group it is the same as | |
2739 | can_remove_if_no_direct_calls_p. */ | |
2740 | if (!externally_visible || !same_comdat_group) | |
2741 | { | |
2742 | if (DECL_EXTERNAL (decl)) | |
2743 | return true; | |
2744 | if (address_taken) | |
2745 | return false; | |
2746 | return !call_for_symbol_and_aliases (nonremovable_p, NULL, true); | |
2747 | } | |
2748 | ||
e0d514da JH |
2749 | if (will_inline && address_taken) |
2750 | return false; | |
2751 | ||
dfea3d6f | 2752 | /* Otherwise check if we can remove the symbol itself and then verify |
a6a543bf JH |
2753 | that only uses of the comdat groups are direct call to THIS |
2754 | or its aliases. */ | |
2755 | if (!can_remove_if_no_direct_calls_and_refs_p ()) | |
9aa3f5c5 | 2756 | return false; |
a6a543bf JH |
2757 | |
2758 | /* Check that all refs come from within the comdat group. */ | |
2759 | for (int i = 0; iterate_referring (i, ref); i++) | |
2760 | if (ref->referring->get_comdat_group () != get_comdat_group ()) | |
2761 | return false; | |
2762 | ||
2763 | struct cgraph_node *target = ultimate_alias_target (); | |
2764 | for (cgraph_node *next = dyn_cast<cgraph_node *> (same_comdat_group); | |
2765 | next != this; next = dyn_cast<cgraph_node *> (next->same_comdat_group)) | |
2766 | { | |
2767 | if (!externally_visible) | |
2768 | continue; | |
2769 | if (!next->alias | |
2770 | && !next->can_remove_if_no_direct_calls_and_refs_p ()) | |
2771 | return false; | |
2772 | ||
2773 | /* If we see different symbol than THIS, be sure to check calls. */ | |
2774 | if (next->ultimate_alias_target () != target) | |
2775 | for (cgraph_edge *e = next->callers; e; e = e->next_caller) | |
e0d514da JH |
2776 | if (e->caller->get_comdat_group () != get_comdat_group () |
2777 | || will_inline) | |
a6a543bf JH |
2778 | return false; |
2779 | ||
e0d514da JH |
2780 | /* If function is not being inlined, we care only about |
2781 | references outside of the comdat group. */ | |
2782 | if (!will_inline) | |
2783 | for (int i = 0; next->iterate_referring (i, ref); i++) | |
2784 | if (ref->referring->get_comdat_group () != get_comdat_group ()) | |
2785 | return false; | |
a6a543bf JH |
2786 | } |
2787 | return true; | |
9aa3f5c5 JH |
2788 | } |
2789 | ||
d52f5295 | 2790 | /* Return true when function cgraph_node can be expected to be removed |
09411461 JH |
2791 | from program when direct calls in this compilation unit are removed. |
2792 | ||
2793 | As a special case COMDAT functions are | |
2794 | cgraph_can_remove_if_no_direct_calls_p while the are not | |
2795 | cgraph_only_called_directly_p (it is possible they are called from other | |
2796 | unit) | |
2797 | ||
2798 | This function behaves as cgraph_only_called_directly_p because eliminating | |
61502ca8 | 2799 | all uses of COMDAT function does not make it necessarily disappear from |
09411461 JH |
2800 | the program unless we are compiling whole program or we do LTO. In this |
2801 | case we know we win since dynamic linking will not really discard the | |
2802 | linkonce section. */ | |
2803 | ||
2804 | bool | |
e0d514da JH |
2805 | cgraph_node::will_be_removed_from_program_if_no_direct_calls_p |
2806 | (bool will_inline) | |
09411461 | 2807 | { |
a62bfab5 | 2808 | gcc_assert (!inlined_to); |
a6a543bf JH |
2809 | if (DECL_EXTERNAL (decl)) |
2810 | return true; | |
d52f5295 | 2811 | |
09411461 | 2812 | if (!in_lto_p && !flag_whole_program) |
530f3a1b | 2813 | { |
a6a543bf JH |
2814 | /* If the symbol is in comdat group, we need to verify that whole comdat |
2815 | group becomes unreachable. Technically we could skip references from | |
2816 | within the group, too. */ | |
2817 | if (!only_called_directly_p ()) | |
2818 | return false; | |
2819 | if (same_comdat_group && externally_visible) | |
2820 | { | |
2821 | struct cgraph_node *target = ultimate_alias_target (); | |
e0d514da JH |
2822 | |
2823 | if (will_inline && address_taken) | |
2824 | return true; | |
a6a543bf JH |
2825 | for (cgraph_node *next = dyn_cast<cgraph_node *> (same_comdat_group); |
2826 | next != this; | |
2827 | next = dyn_cast<cgraph_node *> (next->same_comdat_group)) | |
2828 | { | |
2829 | if (!externally_visible) | |
2830 | continue; | |
2831 | if (!next->alias | |
2832 | && !next->only_called_directly_p ()) | |
2833 | return false; | |
2834 | ||
2835 | /* If we see different symbol than THIS, | |
2836 | be sure to check calls. */ | |
2837 | if (next->ultimate_alias_target () != target) | |
2838 | for (cgraph_edge *e = next->callers; e; e = e->next_caller) | |
e0d514da JH |
2839 | if (e->caller->get_comdat_group () != get_comdat_group () |
2840 | || will_inline) | |
a6a543bf | 2841 | return false; |
a6a543bf JH |
2842 | } |
2843 | } | |
2844 | return true; | |
530f3a1b | 2845 | } |
a6a543bf | 2846 | else |
e0d514da | 2847 | return can_remove_if_no_direct_calls_p (will_inline); |
09411461 JH |
2848 | } |
2849 | ||
051f8cc6 | 2850 | |
be330ed4 JH |
2851 | /* Worker for cgraph_only_called_directly_p. */ |
2852 | ||
2853 | static bool | |
3dafb85c | 2854 | cgraph_not_only_called_directly_p_1 (cgraph_node *node, void *) |
be330ed4 | 2855 | { |
d52f5295 | 2856 | return !node->only_called_directly_or_aliased_p (); |
be330ed4 JH |
2857 | } |
2858 | ||
d52f5295 | 2859 | /* Return true when function cgraph_node and all its aliases are only called |
be330ed4 JH |
2860 | directly. |
2861 | i.e. it is not externally visible, address was not taken and | |
2862 | it is not used in any other non-standard way. */ | |
2863 | ||
2864 | bool | |
d52f5295 | 2865 | cgraph_node::only_called_directly_p (void) |
be330ed4 | 2866 | { |
d52f5295 ML |
2867 | gcc_assert (ultimate_alias_target () == this); |
2868 | return !call_for_symbol_and_aliases (cgraph_not_only_called_directly_p_1, | |
be330ed4 JH |
2869 | NULL, true); |
2870 | } | |
2871 | ||
2872 | ||
2873 | /* Collect all callers of NODE. Worker for collect_callers_of_node. */ | |
2874 | ||
2875 | static bool | |
3dafb85c | 2876 | collect_callers_of_node_1 (cgraph_node *node, void *data) |
be330ed4 | 2877 | { |
d52f5295 | 2878 | vec<cgraph_edge *> *redirect_callers = (vec<cgraph_edge *> *)data; |
3dafb85c | 2879 | cgraph_edge *cs; |
be330ed4 | 2880 | enum availability avail; |
d52f5295 | 2881 | node->ultimate_alias_target (&avail); |
be330ed4 | 2882 | |
d52f5295 | 2883 | if (avail > AVAIL_INTERPOSABLE) |
be330ed4 | 2884 | for (cs = node->callers; cs != NULL; cs = cs->next_caller) |
4a414de8 MJ |
2885 | if (!cs->indirect_inlining_edge |
2886 | && !cs->caller->thunk.thunk_p) | |
9771b263 | 2887 | redirect_callers->safe_push (cs); |
be330ed4 JH |
2888 | return false; |
2889 | } | |
2890 | ||
d52f5295 ML |
2891 | /* Collect all callers of cgraph_node and its aliases that are known to lead to |
2892 | cgraph_node (i.e. are not overwritable). */ | |
be330ed4 | 2893 | |
d52f5295 ML |
2894 | vec<cgraph_edge *> |
2895 | cgraph_node::collect_callers (void) | |
be330ed4 | 2896 | { |
d52f5295 ML |
2897 | vec<cgraph_edge *> redirect_callers = vNULL; |
2898 | call_for_symbol_thunks_and_aliases (collect_callers_of_node_1, | |
2899 | &redirect_callers, false); | |
be330ed4 JH |
2900 | return redirect_callers; |
2901 | } | |
2902 | ||
1738b522 MJ |
2903 | |
2904 | /* Return TRUE if NODE2 a clone of NODE or is equivalent to it. Return | |
2905 | optimistically true if this cannot be determined. */ | |
610c8ef0 | 2906 | |
9c8305f8 | 2907 | static bool |
3dafb85c | 2908 | clone_of_p (cgraph_node *node, cgraph_node *node2) |
9c8305f8 | 2909 | { |
d52f5295 ML |
2910 | node = node->ultimate_alias_target (); |
2911 | node2 = node2->ultimate_alias_target (); | |
610c8ef0 | 2912 | |
79a18702 MJ |
2913 | if (node2->clone_of == node |
2914 | || node2->former_clone_of == node->decl) | |
2915 | return true; | |
2916 | ||
2917 | if (!node->thunk.thunk_p && !node->former_thunk_p ()) | |
2918 | { | |
2919 | while (node2 && node->decl != node2->decl) | |
2920 | node2 = node2->clone_of; | |
2921 | return node2 != NULL; | |
2922 | } | |
2923 | ||
610c8ef0 MJ |
2924 | /* There are no virtual clones of thunks so check former_clone_of or if we |
2925 | might have skipped thunks because this adjustments are no longer | |
2926 | necessary. */ | |
1738b522 | 2927 | while (node->thunk.thunk_p || node->former_thunk_p ()) |
610c8ef0 | 2928 | { |
610c8ef0 MJ |
2929 | if (!node->thunk.this_adjusting) |
2930 | return false; | |
1738b522 MJ |
2931 | /* In case of instrumented expanded thunks, which can have multiple calls |
2932 | in them, we do not know how to continue and just have to be | |
2933 | optimistic. */ | |
2934 | if (node->callees->next_callee) | |
2935 | return true; | |
d52f5295 | 2936 | node = node->callees->callee->ultimate_alias_target (); |
610c8ef0 | 2937 | |
ff6686d2 MJ |
2938 | if (!node2->clone.param_adjustments |
2939 | || node2->clone.param_adjustments->first_param_intact_p ()) | |
803d0ab0 MJ |
2940 | return false; |
2941 | if (node2->former_clone_of == node->decl) | |
2942 | return true; | |
79a18702 MJ |
2943 | |
2944 | cgraph_node *n2 = node2; | |
2945 | while (n2 && node->decl != n2->decl) | |
2946 | n2 = n2->clone_of; | |
2947 | if (n2) | |
2948 | return true; | |
803d0ab0 | 2949 | } |
610c8ef0 | 2950 | |
79a18702 | 2951 | return false; |
9c8305f8 JH |
2952 | } |
2953 | ||
90988f77 | 2954 | /* Verify edge count and frequency. */ |
9c8305f8 | 2955 | |
90988f77 | 2956 | bool |
1bad9c18 | 2957 | cgraph_edge::verify_count () |
9c8305f8 JH |
2958 | { |
2959 | bool error_found = false; | |
e7a74006 | 2960 | if (!count.verify ()) |
9c8305f8 | 2961 | { |
e7a74006 JH |
2962 | error ("caller edge count invalid"); |
2963 | error_found = true; | |
2964 | } | |
9c8305f8 JH |
2965 | return error_found; |
2966 | } | |
2967 | ||
2968 | /* Switch to THIS_CFUN if needed and print STMT to stderr. */ | |
2969 | static void | |
355fe088 | 2970 | cgraph_debug_gimple_stmt (function *this_cfun, gimple *stmt) |
9c8305f8 | 2971 | { |
27f7e1c3 | 2972 | bool fndecl_was_null = false; |
9c8305f8 JH |
2973 | /* debug_gimple_stmt needs correct cfun */ |
2974 | if (cfun != this_cfun) | |
2975 | set_cfun (this_cfun); | |
27f7e1c3 AH |
2976 | /* ...and an actual current_function_decl */ |
2977 | if (!current_function_decl) | |
2978 | { | |
2979 | current_function_decl = this_cfun->decl; | |
2980 | fndecl_was_null = true; | |
2981 | } | |
9c8305f8 | 2982 | debug_gimple_stmt (stmt); |
27f7e1c3 AH |
2983 | if (fndecl_was_null) |
2984 | current_function_decl = NULL; | |
9c8305f8 JH |
2985 | } |
2986 | ||
90988f77 | 2987 | /* Verify that call graph edge corresponds to DECL from the associated |
9c8305f8 JH |
2988 | statement. Return true if the verification should fail. */ |
2989 | ||
90988f77 ML |
2990 | bool |
2991 | cgraph_edge::verify_corresponds_to_fndecl (tree decl) | |
9c8305f8 | 2992 | { |
3dafb85c | 2993 | cgraph_node *node; |
9c8305f8 | 2994 | |
a62bfab5 | 2995 | if (!decl || callee->inlined_to) |
9c8305f8 | 2996 | return false; |
3dafb85c | 2997 | if (symtab->state == LTO_STREAMING) |
ca0f62a8 | 2998 | return false; |
d52f5295 | 2999 | node = cgraph_node::get (decl); |
9c8305f8 JH |
3000 | |
3001 | /* We do not know if a node from a different partition is an alias or what it | |
3d8d0043 MJ |
3002 | aliases and therefore cannot do the former_clone_of check reliably. When |
3003 | body_removed is set, we have lost all information about what was alias or | |
3004 | thunk of and also cannot proceed. */ | |
3005 | if (!node | |
3006 | || node->body_removed | |
3007 | || node->in_other_partition | |
0a7246ee | 3008 | || callee->icf_merged |
90988f77 | 3009 | || callee->in_other_partition) |
9c8305f8 | 3010 | return false; |
9de6f6c3 | 3011 | |
d52f5295 ML |
3012 | node = node->ultimate_alias_target (); |
3013 | ||
9de6f6c3 | 3014 | /* Optimizers can redirect unreachable calls or calls triggering undefined |
9c582551 | 3015 | behavior to builtin_unreachable. */ |
3d78e008 ML |
3016 | |
3017 | if (fndecl_built_in_p (callee->decl, BUILT_IN_UNREACHABLE)) | |
9de6f6c3 | 3018 | return false; |
9c8305f8 | 3019 | |
90988f77 ML |
3020 | if (callee->former_clone_of != node->decl |
3021 | && (node != callee->ultimate_alias_target ()) | |
3022 | && !clone_of_p (node, callee)) | |
9c8305f8 JH |
3023 | return true; |
3024 | else | |
3025 | return false; | |
3026 | } | |
3027 | ||
0ecf545c MS |
3028 | /* Disable warnings about missing quoting in GCC diagnostics for |
3029 | the verification errors. Their format strings don't follow GCC | |
3030 | diagnostic conventions and the calls are ultimately followed by | |
3031 | one to internal_error. */ | |
3032 | #if __GNUC__ >= 10 | |
3033 | # pragma GCC diagnostic push | |
3034 | # pragma GCC diagnostic ignored "-Wformat-diag" | |
3035 | #endif | |
3036 | ||
9c8305f8 JH |
3037 | /* Verify cgraph nodes of given cgraph node. */ |
3038 | DEBUG_FUNCTION void | |
d52f5295 | 3039 | cgraph_node::verify_node (void) |
9c8305f8 | 3040 | { |
3dafb85c ML |
3041 | cgraph_edge *e; |
3042 | function *this_cfun = DECL_STRUCT_FUNCTION (decl); | |
9c8305f8 JH |
3043 | basic_block this_block; |
3044 | gimple_stmt_iterator gsi; | |
3045 | bool error_found = false; | |
3046 | ||
3047 | if (seen_error ()) | |
3048 | return; | |
3049 | ||
3050 | timevar_push (TV_CGRAPH_VERIFY); | |
d52f5295 ML |
3051 | error_found |= verify_base (); |
3052 | for (e = callees; e; e = e->next_callee) | |
9c8305f8 JH |
3053 | if (e->aux) |
3054 | { | |
3055 | error ("aux field set for edge %s->%s", | |
fec39fa6 TS |
3056 | identifier_to_locale (e->caller->name ()), |
3057 | identifier_to_locale (e->callee->name ())); | |
9c8305f8 JH |
3058 | error_found = true; |
3059 | } | |
e7a74006 JH |
3060 | if (!count.verify ()) |
3061 | { | |
3062 | error ("cgraph count invalid"); | |
3063 | error_found = true; | |
3064 | } | |
a62bfab5 | 3065 | if (inlined_to && same_comdat_group) |
65d630d4 JH |
3066 | { |
3067 | error ("inline clone in same comdat group list"); | |
3068 | error_found = true; | |
3069 | } | |
db51f624 JH |
3070 | if (inlined_to && !count.compatible_p (inlined_to->count)) |
3071 | { | |
3072 | error ("inline clone count is not compatible"); | |
3073 | count.debug (); | |
3074 | inlined_to->count.debug (); | |
3075 | error_found = true; | |
3076 | } | |
87f94429 | 3077 | if (!definition && !in_other_partition && local) |
e70670cf JH |
3078 | { |
3079 | error ("local symbols must be defined"); | |
3080 | error_found = true; | |
3081 | } | |
a62bfab5 | 3082 | if (inlined_to && externally_visible) |
9c8305f8 JH |
3083 | { |
3084 | error ("externally visible inline clone"); | |
3085 | error_found = true; | |
3086 | } | |
a62bfab5 | 3087 | if (inlined_to && address_taken) |
9c8305f8 JH |
3088 | { |
3089 | error ("inline clone with address taken"); | |
3090 | error_found = true; | |
3091 | } | |
a62bfab5 | 3092 | if (inlined_to && force_output) |
9c8305f8 JH |
3093 | { |
3094 | error ("inline clone is forced to output"); | |
3095 | error_found = true; | |
3096 | } | |
21cd8589 JH |
3097 | if (calls_comdat_local && !same_comdat_group) |
3098 | { | |
3099 | error ("calls_comdat_local is set outside of a comdat group"); | |
3100 | error_found = true; | |
3101 | } | |
d52f5295 | 3102 | for (e = indirect_calls; e; e = e->next_callee) |
9c8305f8 JH |
3103 | { |
3104 | if (e->aux) | |
3105 | { | |
3106 | error ("aux field set for indirect edge from %s", | |
fec39fa6 | 3107 | identifier_to_locale (e->caller->name ())); |
9c8305f8 JH |
3108 | error_found = true; |
3109 | } | |
db51f624 JH |
3110 | if (!e->count.compatible_p (count)) |
3111 | { | |
3112 | error ("edge count is not compatible with function count"); | |
3113 | e->count.debug (); | |
3114 | count.debug (); | |
3115 | error_found = true; | |
3116 | } | |
9c8305f8 JH |
3117 | if (!e->indirect_unknown_callee |
3118 | || !e->indirect_info) | |
3119 | { | |
3120 | error ("An indirect edge from %s is not marked as indirect or has " | |
3121 | "associated indirect_info, the corresponding statement is: ", | |
fec39fa6 | 3122 | identifier_to_locale (e->caller->name ())); |
9c8305f8 JH |
3123 | cgraph_debug_gimple_stmt (this_cfun, e->call_stmt); |
3124 | error_found = true; | |
3125 | } | |
3126 | } | |
d52f5295 ML |
3127 | bool check_comdat = comdat_local_p (); |
3128 | for (e = callers; e; e = e->next_caller) | |
9c8305f8 | 3129 | { |
1bad9c18 | 3130 | if (e->verify_count ()) |
9c8305f8 | 3131 | error_found = true; |
1f26ac87 | 3132 | if (check_comdat |
d52f5295 | 3133 | && !in_same_comdat_group_p (e->caller)) |
1f26ac87 JM |
3134 | { |
3135 | error ("comdat-local function called by %s outside its comdat", | |
3136 | identifier_to_locale (e->caller->name ())); | |
3137 | error_found = true; | |
3138 | } | |
9c8305f8 JH |
3139 | if (!e->inline_failed) |
3140 | { | |
a62bfab5 ML |
3141 | if (inlined_to |
3142 | != (e->caller->inlined_to | |
3143 | ? e->caller->inlined_to : e->caller)) | |
9c8305f8 JH |
3144 | { |
3145 | error ("inlined_to pointer is wrong"); | |
3146 | error_found = true; | |
3147 | } | |
d52f5295 | 3148 | if (callers->next_caller) |
9c8305f8 JH |
3149 | { |
3150 | error ("multiple inline callers"); | |
3151 | error_found = true; | |
3152 | } | |
3153 | } | |
3154 | else | |
a62bfab5 | 3155 | if (inlined_to) |
9c8305f8 JH |
3156 | { |
3157 | error ("inlined_to pointer set for noninline callers"); | |
3158 | error_found = true; | |
3159 | } | |
3160 | } | |
1f4eb0e9 JH |
3161 | for (e = callees; e; e = e->next_callee) |
3162 | { | |
1bad9c18 | 3163 | if (e->verify_count ()) |
1f4eb0e9 | 3164 | error_found = true; |
db51f624 JH |
3165 | if (!e->count.compatible_p (count)) |
3166 | { | |
3167 | error ("edge count is not compatible with function count"); | |
3168 | e->count.debug (); | |
3169 | count.debug (); | |
3170 | error_found = true; | |
3171 | } | |
1f4eb0e9 | 3172 | if (gimple_has_body_p (e->caller->decl) |
a62bfab5 | 3173 | && !e->caller->inlined_to |
1f4eb0e9 JH |
3174 | && !e->speculative |
3175 | /* Optimized out calls are redirected to __builtin_unreachable. */ | |
1bad9c18 | 3176 | && (e->count.nonzero_p () |
ea6e17d5 | 3177 | || ! e->callee->decl |
3d78e008 | 3178 | || !fndecl_built_in_p (e->callee->decl, BUILT_IN_UNREACHABLE)) |
1bad9c18 JH |
3179 | && count |
3180 | == ENTRY_BLOCK_PTR_FOR_FN (DECL_STRUCT_FUNCTION (decl))->count | |
3181 | && (!e->count.ipa_p () | |
3182 | && e->count.differs_from_p (gimple_bb (e->call_stmt)->count))) | |
1f4eb0e9 | 3183 | { |
1bad9c18 JH |
3184 | error ("caller edge count does not match BB count"); |
3185 | fprintf (stderr, "edge count: "); | |
3186 | e->count.dump (stderr); | |
3187 | fprintf (stderr, "\n bb count: "); | |
3188 | gimple_bb (e->call_stmt)->count.dump (stderr); | |
3189 | fprintf (stderr, "\n"); | |
1f4eb0e9 JH |
3190 | error_found = true; |
3191 | } | |
3192 | } | |
d52f5295 | 3193 | for (e = indirect_calls; e; e = e->next_callee) |
1f4eb0e9 | 3194 | { |
1bad9c18 | 3195 | if (e->verify_count ()) |
1f4eb0e9 JH |
3196 | error_found = true; |
3197 | if (gimple_has_body_p (e->caller->decl) | |
a62bfab5 | 3198 | && !e->caller->inlined_to |
1f4eb0e9 | 3199 | && !e->speculative |
1bad9c18 JH |
3200 | && e->count.ipa_p () |
3201 | && count | |
3202 | == ENTRY_BLOCK_PTR_FOR_FN (DECL_STRUCT_FUNCTION (decl))->count | |
3203 | && (!e->count.ipa_p () | |
3204 | && e->count.differs_from_p (gimple_bb (e->call_stmt)->count))) | |
1f4eb0e9 | 3205 | { |
1bad9c18 JH |
3206 | error ("indirect call count does not match BB count"); |
3207 | fprintf (stderr, "edge count: "); | |
3208 | e->count.dump (stderr); | |
3209 | fprintf (stderr, "\n bb count: "); | |
3210 | gimple_bb (e->call_stmt)->count.dump (stderr); | |
3211 | fprintf (stderr, "\n"); | |
1f4eb0e9 JH |
3212 | error_found = true; |
3213 | } | |
3214 | } | |
a62bfab5 | 3215 | if (!callers && inlined_to) |
9c8305f8 JH |
3216 | { |
3217 | error ("inlined_to pointer is set but no predecessors found"); | |
3218 | error_found = true; | |
3219 | } | |
a62bfab5 | 3220 | if (inlined_to == this) |
9c8305f8 JH |
3221 | { |
3222 | error ("inlined_to pointer refers to itself"); | |
3223 | error_found = true; | |
3224 | } | |
3225 | ||
d52f5295 | 3226 | if (clone_of) |
9c8305f8 | 3227 | { |
606711a1 ML |
3228 | cgraph_node *first_clone = clone_of->clones; |
3229 | if (first_clone != this) | |
9c8305f8 | 3230 | { |
606711a1 ML |
3231 | if (prev_sibling_clone->clone_of != clone_of) |
3232 | { | |
3233 | error ("cgraph_node has wrong clone_of"); | |
3234 | error_found = true; | |
3235 | } | |
9c8305f8 JH |
3236 | } |
3237 | } | |
d52f5295 | 3238 | if (clones) |
9c8305f8 | 3239 | { |
3dafb85c | 3240 | cgraph_node *n; |
d52f5295 ML |
3241 | for (n = clones; n; n = n->next_sibling_clone) |
3242 | if (n->clone_of != this) | |
9c8305f8 JH |
3243 | break; |
3244 | if (n) | |
3245 | { | |
d52f5295 | 3246 | error ("cgraph_node has wrong clone list"); |
9c8305f8 JH |
3247 | error_found = true; |
3248 | } | |
3249 | } | |
d52f5295 | 3250 | if ((prev_sibling_clone || next_sibling_clone) && !clone_of) |
9c8305f8 | 3251 | { |
d52f5295 | 3252 | error ("cgraph_node is in clone list but it is not clone"); |
9c8305f8 JH |
3253 | error_found = true; |
3254 | } | |
d52f5295 | 3255 | if (!prev_sibling_clone && clone_of && clone_of->clones != this) |
9c8305f8 | 3256 | { |
d52f5295 | 3257 | error ("cgraph_node has wrong prev_clone pointer"); |
9c8305f8 JH |
3258 | error_found = true; |
3259 | } | |
d52f5295 | 3260 | if (prev_sibling_clone && prev_sibling_clone->next_sibling_clone != this) |
9c8305f8 JH |
3261 | { |
3262 | error ("double linked list of clones corrupted"); | |
3263 | error_found = true; | |
3264 | } | |
3265 | ||
d52f5295 | 3266 | if (analyzed && alias) |
9c8305f8 JH |
3267 | { |
3268 | bool ref_found = false; | |
3269 | int i; | |
3dafb85c | 3270 | ipa_ref *ref = NULL; |
9c8305f8 | 3271 | |
d52f5295 | 3272 | if (callees) |
9c8305f8 JH |
3273 | { |
3274 | error ("Alias has call edges"); | |
3275 | error_found = true; | |
3276 | } | |
d52f5295 | 3277 | for (i = 0; iterate_reference (i, ref); i++) |
31db0fe0 | 3278 | if (ref->use != IPA_REF_ALIAS) |
9c8305f8 JH |
3279 | { |
3280 | error ("Alias has non-alias reference"); | |
3281 | error_found = true; | |
3282 | } | |
3283 | else if (ref_found) | |
3284 | { | |
3285 | error ("Alias has more than one alias reference"); | |
3286 | error_found = true; | |
3287 | } | |
3288 | else | |
3289 | ref_found = true; | |
21c0a521 DM |
3290 | if (!ref_found) |
3291 | { | |
3292 | error ("Analyzed alias has no reference"); | |
3293 | error_found = true; | |
3294 | } | |
9c8305f8 | 3295 | } |
d5e254e1 | 3296 | |
d52f5295 | 3297 | if (analyzed && thunk.thunk_p) |
9c8305f8 | 3298 | { |
d52f5295 | 3299 | if (!callees) |
9c8305f8 JH |
3300 | { |
3301 | error ("No edge out of thunk node"); | |
3302 | error_found = true; | |
3303 | } | |
d52f5295 | 3304 | else if (callees->next_callee) |
9c8305f8 JH |
3305 | { |
3306 | error ("More than one edge out of thunk node"); | |
3307 | error_found = true; | |
3308 | } | |
a62bfab5 | 3309 | if (gimple_has_body_p (decl) && !inlined_to) |
9c8305f8 JH |
3310 | { |
3311 | error ("Thunk is not supposed to have body"); | |
3312 | error_found = true; | |
3313 | } | |
3314 | } | |
d52f5295 ML |
3315 | else if (analyzed && gimple_has_body_p (decl) |
3316 | && !TREE_ASM_WRITTEN (decl) | |
a62bfab5 | 3317 | && (!DECL_EXTERNAL (decl) || inlined_to) |
d52f5295 | 3318 | && !flag_wpa) |
9c8305f8 JH |
3319 | { |
3320 | if (this_cfun->cfg) | |
3321 | { | |
355fe088 | 3322 | hash_set<gimple *> stmts; |
71cafea9 | 3323 | int i; |
3dafb85c | 3324 | ipa_ref *ref = NULL; |
71cafea9 | 3325 | |
9c8305f8 JH |
3326 | /* Reach the trees by walking over the CFG, and note the |
3327 | enclosing basic-blocks in the call edges. */ | |
3328 | FOR_EACH_BB_FN (this_block, this_cfun) | |
71cafea9 JH |
3329 | { |
3330 | for (gsi = gsi_start_phis (this_block); | |
3331 | !gsi_end_p (gsi); gsi_next (&gsi)) | |
6e2830c3 | 3332 | stmts.add (gsi_stmt (gsi)); |
71cafea9 JH |
3333 | for (gsi = gsi_start_bb (this_block); |
3334 | !gsi_end_p (gsi); | |
3335 | gsi_next (&gsi)) | |
3336 | { | |
355fe088 | 3337 | gimple *stmt = gsi_stmt (gsi); |
6e2830c3 | 3338 | stmts.add (stmt); |
71cafea9 JH |
3339 | if (is_gimple_call (stmt)) |
3340 | { | |
3dafb85c | 3341 | cgraph_edge *e = get_edge (stmt); |
71cafea9 JH |
3342 | tree decl = gimple_call_fndecl (stmt); |
3343 | if (e) | |
3344 | { | |
3345 | if (e->aux) | |
3346 | { | |
3347 | error ("shared call_stmt:"); | |
3348 | cgraph_debug_gimple_stmt (this_cfun, stmt); | |
3349 | error_found = true; | |
3350 | } | |
3351 | if (!e->indirect_unknown_callee) | |
3352 | { | |
90988f77 | 3353 | if (e->verify_corresponds_to_fndecl (decl)) |
71cafea9 JH |
3354 | { |
3355 | error ("edge points to wrong declaration:"); | |
67348ccc | 3356 | debug_tree (e->callee->decl); |
71cafea9 JH |
3357 | fprintf (stderr," Instead of:"); |
3358 | debug_tree (decl); | |
3359 | error_found = true; | |
3360 | } | |
3361 | } | |
3362 | else if (decl) | |
3363 | { | |
3364 | error ("an indirect edge with unknown callee " | |
3365 | "corresponding to a call_stmt with " | |
3366 | "a known declaration:"); | |
3367 | error_found = true; | |
3368 | cgraph_debug_gimple_stmt (this_cfun, e->call_stmt); | |
3369 | } | |
3370 | e->aux = (void *)1; | |
3371 | } | |
3372 | else if (decl) | |
3373 | { | |
3374 | error ("missing callgraph edge for call stmt:"); | |
3375 | cgraph_debug_gimple_stmt (this_cfun, stmt); | |
3376 | error_found = true; | |
3377 | } | |
3378 | } | |
3379 | } | |
9c8305f8 | 3380 | } |
d52f5295 | 3381 | for (i = 0; iterate_reference (i, ref); i++) |
6e2830c3 | 3382 | if (ref->stmt && !stmts.contains (ref->stmt)) |
71cafea9 JH |
3383 | { |
3384 | error ("reference to dead statement"); | |
3385 | cgraph_debug_gimple_stmt (this_cfun, ref->stmt); | |
3386 | error_found = true; | |
3387 | } | |
9c8305f8 JH |
3388 | } |
3389 | else | |
3390 | /* No CFG available?! */ | |
3391 | gcc_unreachable (); | |
3392 | ||
d52f5295 | 3393 | for (e = callees; e; e = e->next_callee) |
9c8305f8 JH |
3394 | { |
3395 | if (!e->aux) | |
3396 | { | |
3397 | error ("edge %s->%s has no corresponding call_stmt", | |
fec39fa6 TS |
3398 | identifier_to_locale (e->caller->name ()), |
3399 | identifier_to_locale (e->callee->name ())); | |
9c8305f8 JH |
3400 | cgraph_debug_gimple_stmt (this_cfun, e->call_stmt); |
3401 | error_found = true; | |
3402 | } | |
3403 | e->aux = 0; | |
3404 | } | |
d52f5295 | 3405 | for (e = indirect_calls; e; e = e->next_callee) |
9c8305f8 | 3406 | { |
042ae7d2 | 3407 | if (!e->aux && !e->speculative) |
9c8305f8 JH |
3408 | { |
3409 | error ("an indirect edge from %s has no corresponding call_stmt", | |
fec39fa6 | 3410 | identifier_to_locale (e->caller->name ())); |
9c8305f8 JH |
3411 | cgraph_debug_gimple_stmt (this_cfun, e->call_stmt); |
3412 | error_found = true; | |
3413 | } | |
3414 | e->aux = 0; | |
3415 | } | |
3416 | } | |
b275fd98 ML |
3417 | |
3418 | if (nested != NULL) | |
3419 | { | |
3420 | for (cgraph_node *n = nested; n != NULL; n = n->next_nested) | |
3421 | { | |
3422 | if (n->origin == NULL) | |
3423 | { | |
3424 | error ("missing origin for a node in a nested list"); | |
3425 | error_found = true; | |
3426 | } | |
3427 | else if (n->origin != this) | |
3428 | { | |
3429 | error ("origin points to a different parent"); | |
3430 | error_found = true; | |
3431 | break; | |
3432 | } | |
3433 | } | |
3434 | } | |
3435 | if (next_nested != NULL && origin == NULL) | |
3436 | { | |
3437 | error ("missing origin for a node in a nested list"); | |
3438 | error_found = true; | |
3439 | } | |
3440 | ||
9c8305f8 JH |
3441 | if (error_found) |
3442 | { | |
d52f5295 | 3443 | dump (stderr); |
9c8305f8 JH |
3444 | internal_error ("verify_cgraph_node failed"); |
3445 | } | |
3446 | timevar_pop (TV_CGRAPH_VERIFY); | |
3447 | } | |
3448 | ||
3449 | /* Verify whole cgraph structure. */ | |
3450 | DEBUG_FUNCTION void | |
d52f5295 | 3451 | cgraph_node::verify_cgraph_nodes (void) |
9c8305f8 | 3452 | { |
3dafb85c | 3453 | cgraph_node *node; |
9c8305f8 JH |
3454 | |
3455 | if (seen_error ()) | |
3456 | return; | |
3457 | ||
3458 | FOR_EACH_FUNCTION (node) | |
d52f5295 | 3459 | node->verify (); |
9c8305f8 | 3460 | } |
48f4a6fa | 3461 | |
0ecf545c MS |
3462 | #if __GNUC__ >= 10 |
3463 | # pragma GCC diagnostic pop | |
3464 | #endif | |
3465 | ||
d52f5295 | 3466 | /* Walk the alias chain to return the function cgraph_node is alias of. |
6cbde2e3 | 3467 | Walk through thunks, too. |
f13fe18b JH |
3468 | When AVAILABILITY is non-NULL, get minimal availability in the chain. |
3469 | When REF is non-NULL, assume that reference happens in symbol REF | |
3470 | when determining the availability. */ | |
e70670cf | 3471 | |
d52f5295 | 3472 | cgraph_node * |
f13fe18b JH |
3473 | cgraph_node::function_symbol (enum availability *availability, |
3474 | struct symtab_node *ref) | |
e70670cf | 3475 | { |
f13fe18b | 3476 | cgraph_node *node = ultimate_alias_target (availability, ref); |
d52f5295 | 3477 | |
6cbde2e3 | 3478 | while (node->thunk.thunk_p) |
e70670cf | 3479 | { |
f13fe18b | 3480 | ref = node; |
6cbde2e3 BE |
3481 | node = node->callees->callee; |
3482 | if (availability) | |
3483 | { | |
3484 | enum availability a; | |
f13fe18b | 3485 | a = node->get_availability (ref); |
6cbde2e3 BE |
3486 | if (a < *availability) |
3487 | *availability = a; | |
3488 | } | |
f13fe18b | 3489 | node = node->ultimate_alias_target (availability, ref); |
6cbde2e3 BE |
3490 | } |
3491 | return node; | |
3492 | } | |
3493 | ||
3494 | /* Walk the alias chain to return the function cgraph_node is alias of. | |
3495 | Walk through non virtual thunks, too. Thus we return either a function | |
3496 | or a virtual thunk node. | |
f13fe18b JH |
3497 | When AVAILABILITY is non-NULL, get minimal availability in the chain. |
3498 | When REF is non-NULL, assume that reference happens in symbol REF | |
3499 | when determining the availability. */ | |
6cbde2e3 BE |
3500 | |
3501 | cgraph_node * | |
3502 | cgraph_node::function_or_virtual_thunk_symbol | |
f13fe18b JH |
3503 | (enum availability *availability, |
3504 | struct symtab_node *ref) | |
6cbde2e3 | 3505 | { |
f13fe18b | 3506 | cgraph_node *node = ultimate_alias_target (availability, ref); |
6cbde2e3 BE |
3507 | |
3508 | while (node->thunk.thunk_p && !node->thunk.virtual_offset_p) | |
3509 | { | |
f13fe18b | 3510 | ref = node; |
6cbde2e3 BE |
3511 | node = node->callees->callee; |
3512 | if (availability) | |
e70670cf | 3513 | { |
6cbde2e3 | 3514 | enum availability a; |
f13fe18b | 3515 | a = node->get_availability (ref); |
6cbde2e3 BE |
3516 | if (a < *availability) |
3517 | *availability = a; | |
e70670cf | 3518 | } |
f13fe18b | 3519 | node = node->ultimate_alias_target (availability, ref); |
6cbde2e3 | 3520 | } |
e70670cf JH |
3521 | return node; |
3522 | } | |
3523 | ||
d52f5295 ML |
3524 | /* When doing LTO, read cgraph_node's body from disk if it is not already |
3525 | present. */ | |
a2e2a668 JH |
3526 | |
3527 | bool | |
70486010 | 3528 | cgraph_node::get_untransformed_body (void) |
a2e2a668 | 3529 | { |
3dafb85c | 3530 | lto_file_decl_data *file_data; |
a2e2a668 JH |
3531 | const char *data, *name; |
3532 | size_t len; | |
d52f5295 | 3533 | tree decl = this->decl; |
a2e2a668 | 3534 | |
e9191ad3 JH |
3535 | /* Check if body is already there. Either we have gimple body or |
3536 | the function is thunk and in that case we set DECL_ARGUMENTS. */ | |
3537 | if (DECL_ARGUMENTS (decl) || gimple_has_body_p (decl)) | |
a2e2a668 JH |
3538 | return false; |
3539 | ||
e9191ad3 | 3540 | gcc_assert (in_lto_p && !DECL_RESULT (decl)); |
a2e2a668 | 3541 | |
917dd9bf JH |
3542 | timevar_push (TV_IPA_LTO_GIMPLE_IN); |
3543 | ||
d52f5295 | 3544 | file_data = lto_file_data; |
a2e2a668 JH |
3545 | name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)); |
3546 | ||
3547 | /* We may have renamed the declaration, e.g., a static function. */ | |
3548 | name = lto_get_decl_name_mapping (file_data, name); | |
ca834876 JH |
3549 | struct lto_in_decl_state *decl_state |
3550 | = lto_get_function_in_decl_state (file_data, decl); | |
a2e2a668 | 3551 | |
3c56d8d8 ML |
3552 | cgraph_node *origin = this; |
3553 | while (origin->clone_of) | |
3554 | origin = origin->clone_of; | |
3555 | ||
3556 | int stream_order = origin->order - file_data->order_base; | |
a2e2a668 | 3557 | data = lto_get_section_data (file_data, LTO_section_function_body, |
3c56d8d8 ML |
3558 | name, stream_order, &len, |
3559 | decl_state->compressed); | |
a2e2a668 | 3560 | if (!data) |
3c56d8d8 ML |
3561 | fatal_error (input_location, "%s: section %s.%d is missing", |
3562 | file_data->file_name, name, stream_order); | |
a2e2a668 JH |
3563 | |
3564 | gcc_assert (DECL_STRUCT_FUNCTION (decl) == NULL); | |
3565 | ||
b4da704c JH |
3566 | if (!quiet_flag) |
3567 | fprintf (stderr, " in:%s", IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl))); | |
d52f5295 | 3568 | lto_input_function_body (file_data, this, data); |
a2e2a668 JH |
3569 | lto_stats.num_function_bodies++; |
3570 | lto_free_section_data (file_data, LTO_section_function_body, name, | |
ca834876 | 3571 | data, len, decl_state->compressed); |
d52f5295 | 3572 | lto_free_function_in_decl_state_for_node (this); |
1c4db829 JH |
3573 | /* Keep lto file data so ipa-inline-analysis knows about cross module |
3574 | inlining. */ | |
917dd9bf JH |
3575 | |
3576 | timevar_pop (TV_IPA_LTO_GIMPLE_IN); | |
3577 | ||
a2e2a668 JH |
3578 | return true; |
3579 | } | |
3580 | ||
70486010 JH |
3581 | /* Prepare function body. When doing LTO, read cgraph_node's body from disk |
3582 | if it is not already present. When some IPA transformations are scheduled, | |
3583 | apply them. */ | |
3584 | ||
3585 | bool | |
3586 | cgraph_node::get_body (void) | |
3587 | { | |
3588 | bool updated; | |
3589 | ||
3590 | updated = get_untransformed_body (); | |
3591 | ||
3592 | /* Getting transformed body makes no sense for inline clones; | |
56aae4b7 | 3593 | we should never use this on real clones because they are materialized |
70486010 JH |
3594 | early. |
3595 | TODO: Materializing clones here will likely lead to smaller LTRANS | |
3596 | footprint. */ | |
a62bfab5 | 3597 | gcc_assert (!inlined_to && !clone_of); |
70486010 JH |
3598 | if (ipa_transforms_to_apply.exists ()) |
3599 | { | |
3600 | opt_pass *saved_current_pass = current_pass; | |
3601 | FILE *saved_dump_file = dump_file; | |
5a15be97 | 3602 | const char *saved_dump_file_name = dump_file_name; |
1a817418 | 3603 | dump_flags_t saved_dump_flags = dump_flags; |
5a15be97 | 3604 | dump_file_name = NULL; |
29b54a9d | 3605 | set_dump_file (NULL); |
70486010 JH |
3606 | |
3607 | push_cfun (DECL_STRUCT_FUNCTION (decl)); | |
4f75f97b JH |
3608 | |
3609 | update_ssa (TODO_update_ssa_only_virtuals); | |
e57c896e | 3610 | execute_all_ipa_transforms (true); |
70486010 JH |
3611 | cgraph_edge::rebuild_edges (); |
3612 | free_dominance_info (CDI_DOMINATORS); | |
3613 | free_dominance_info (CDI_POST_DOMINATORS); | |
3614 | pop_cfun (); | |
3615 | updated = true; | |
3616 | ||
3617 | current_pass = saved_current_pass; | |
29b54a9d | 3618 | set_dump_file (saved_dump_file); |
5a15be97 | 3619 | dump_file_name = saved_dump_file_name; |
70486010 JH |
3620 | dump_flags = saved_dump_flags; |
3621 | } | |
3622 | return updated; | |
3623 | } | |
3624 | ||
8ccda8bc EB |
3625 | /* Return the DECL_STRUCT_FUNCTION of the function. */ |
3626 | ||
3627 | struct function * | |
975d043f | 3628 | cgraph_node::get_fun () const |
8ccda8bc | 3629 | { |
975d043f | 3630 | const cgraph_node *node = this; |
8ccda8bc EB |
3631 | struct function *fun = DECL_STRUCT_FUNCTION (node->decl); |
3632 | ||
3633 | while (!fun && node->clone_of) | |
3634 | { | |
3635 | node = node->clone_of; | |
3636 | fun = DECL_STRUCT_FUNCTION (node->decl); | |
3637 | } | |
3638 | ||
3639 | return fun; | |
3640 | } | |
3641 | ||
3edf64aa DM |
3642 | /* Reset all state within cgraph.c so that we can rerun the compiler |
3643 | within the same process. For use by toplev::finalize. */ | |
3644 | ||
3645 | void | |
3646 | cgraph_c_finalize (void) | |
3647 | { | |
3648 | symtab = NULL; | |
3649 | ||
3650 | x_cgraph_nodes_queue = NULL; | |
3651 | ||
3652 | cgraph_fnver_htab = NULL; | |
3653 | version_info_node = NULL; | |
3654 | } | |
3655 | ||
dfea3d6f | 3656 | /* A worker for call_for_symbol_and_aliases. */ |
31de7606 JH |
3657 | |
3658 | bool | |
3659 | cgraph_node::call_for_symbol_and_aliases_1 (bool (*callback) (cgraph_node *, | |
3660 | void *), | |
3661 | void *data, | |
3662 | bool include_overwritable) | |
3663 | { | |
3664 | ipa_ref *ref; | |
3665 | FOR_EACH_ALIAS (this, ref) | |
3666 | { | |
3667 | cgraph_node *alias = dyn_cast <cgraph_node *> (ref->referring); | |
3668 | if (include_overwritable | |
3669 | || alias->get_availability () > AVAIL_INTERPOSABLE) | |
3670 | if (alias->call_for_symbol_and_aliases (callback, data, | |
3671 | include_overwritable)) | |
3672 | return true; | |
3673 | } | |
3674 | return false; | |
3675 | } | |
17d1bf76 ML |
3676 | |
3677 | /* Return true if NODE has thunk. */ | |
3678 | ||
3679 | bool | |
3680 | cgraph_node::has_thunk_p (cgraph_node *node, void *) | |
3681 | { | |
3682 | for (cgraph_edge *e = node->callers; e; e = e->next_caller) | |
3683 | if (e->caller->thunk.thunk_p) | |
3684 | return true; | |
3685 | return false; | |
3686 | } | |
3687 | ||
7349698e | 3688 | /* Expected frequency of executions within the function. */ |
41f0e819 JH |
3689 | |
3690 | sreal | |
3691 | cgraph_edge::sreal_frequency () | |
3692 | { | |
a62bfab5 ML |
3693 | return count.to_sreal_scale (caller->inlined_to |
3694 | ? caller->inlined_to->count | |
41f0e819 JH |
3695 | : caller->count); |
3696 | } | |
3697 | ||
f714ecf5 JH |
3698 | |
3699 | /* During LTO stream in this can be used to check whether call can possibly | |
3700 | be internal to the current translation unit. */ | |
3701 | ||
3702 | bool | |
3703 | cgraph_edge::possibly_call_in_translation_unit_p (void) | |
3704 | { | |
3705 | gcc_checking_assert (in_lto_p && caller->prevailing_p ()); | |
3706 | ||
3707 | /* While incremental linking we may end up getting function body later. */ | |
3708 | if (flag_incremental_link == INCREMENTAL_LINK_LTO) | |
3709 | return true; | |
3710 | ||
dfea3d6f JJ |
3711 | /* We may be smarter here and avoid streaming in indirect calls we can't |
3712 | track, but that would require arranging streaming the indirect call | |
f714ecf5 JH |
3713 | summary first. */ |
3714 | if (!callee) | |
3715 | return true; | |
3716 | ||
dfea3d6f JJ |
3717 | /* If callee is local to the original translation unit, it will be |
3718 | defined. */ | |
f714ecf5 JH |
3719 | if (!TREE_PUBLIC (callee->decl) && !DECL_EXTERNAL (callee->decl)) |
3720 | return true; | |
3721 | ||
3722 | /* Otherwise we need to lookup prevailing symbol (symbol table is not merged, | |
3723 | yet) and see if it is a definition. In fact we may also resolve aliases, | |
3724 | but that is probably not too important. */ | |
3725 | symtab_node *node = callee; | |
3726 | for (int n = 10; node->previous_sharing_asm_name && n ; n--) | |
3727 | node = node->previous_sharing_asm_name; | |
3728 | if (node->previous_sharing_asm_name) | |
3729 | node = symtab_node::get_for_asmname (DECL_ASSEMBLER_NAME (callee->decl)); | |
3730 | gcc_assert (TREE_PUBLIC (node->decl)); | |
f653eb0e | 3731 | return node->get_availability () >= AVAIL_INTERPOSABLE; |
f714ecf5 JH |
3732 | } |
3733 | ||
212755ff DM |
3734 | /* A stashed copy of "symtab" for use by selftest::symbol_table_test. |
3735 | This needs to be a global so that it can be a GC root, and thus | |
3736 | prevent the stashed copy from being garbage-collected if the GC runs | |
3737 | during a symbol_table_test. */ | |
3738 | ||
3739 | symbol_table *saved_symtab; | |
3740 | ||
3741 | #if CHECKING_P | |
3742 | ||
3743 | namespace selftest { | |
3744 | ||
3745 | /* class selftest::symbol_table_test. */ | |
3746 | ||
3747 | /* Constructor. Store the old value of symtab, and create a new one. */ | |
3748 | ||
3749 | symbol_table_test::symbol_table_test () | |
3750 | { | |
3751 | gcc_assert (saved_symtab == NULL); | |
3752 | saved_symtab = symtab; | |
019f36a6 | 3753 | symtab = new (ggc_alloc <symbol_table> ()) symbol_table (); |
212755ff DM |
3754 | } |
3755 | ||
3756 | /* Destructor. Restore the old value of symtab. */ | |
3757 | ||
3758 | symbol_table_test::~symbol_table_test () | |
3759 | { | |
3760 | gcc_assert (saved_symtab != NULL); | |
3761 | symtab = saved_symtab; | |
3762 | saved_symtab = NULL; | |
3763 | } | |
3764 | ||
3765 | /* Verify that symbol_table_test works. */ | |
3766 | ||
3767 | static void | |
3768 | test_symbol_table_test () | |
3769 | { | |
3770 | /* Simulate running two selftests involving symbol tables. */ | |
3771 | for (int i = 0; i < 2; i++) | |
3772 | { | |
3773 | symbol_table_test stt; | |
3774 | tree test_decl = build_decl (UNKNOWN_LOCATION, FUNCTION_DECL, | |
3775 | get_identifier ("test_decl"), | |
3776 | build_function_type_list (void_type_node, | |
3777 | NULL_TREE)); | |
3778 | cgraph_node *node = cgraph_node::get_create (test_decl); | |
3779 | gcc_assert (node); | |
3780 | ||
3781 | /* Verify that the node has order 0 on both iterations, | |
3782 | and thus that nodes have predictable dump names in selftests. */ | |
3783 | ASSERT_EQ (node->order, 0); | |
3784 | ASSERT_STREQ (node->dump_name (), "test_decl/0"); | |
3785 | } | |
3786 | } | |
3787 | ||
3788 | /* Run all of the selftests within this file. */ | |
3789 | ||
3790 | void | |
3791 | cgraph_c_tests () | |
3792 | { | |
3793 | test_symbol_table_test (); | |
3794 | } | |
3795 | ||
3796 | } // namespace selftest | |
3797 | ||
3798 | #endif /* CHECKING_P */ | |
3799 | ||
988d1653 | 3800 | #include "gt-cgraph.h" |