1 /* Definitions for describing one tree-ssa optimization pass. 2 Copyright (C) 2004-2015 Free Software Foundation, Inc. 3 Contributed by Richard Henderson <rth@redhat.com> 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3, or (at your option) 10 any later version. 11 12 GCC is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 22 #ifndef GCC_TREE_PASS_H 23 #define GCC_TREE_PASS_H 1 24 25 #include "timevar.h" 26 #include "dumpfile.h" 27 28 struct function; 29 30 /* Optimization pass type. */ 31 enum opt_pass_type 32 { 33 GIMPLE_PASS, 34 RTL_PASS, 35 SIMPLE_IPA_PASS, 36 IPA_PASS 37 }; 38 39 /* Metadata for a pass, non-varying across all instances of a pass. */ 40 struct pass_data 41 { 42 /* Optimization pass type. */ 43 enum opt_pass_type type; 44 45 /* Terse name of the pass used as a fragment of the dump file 46 name. If the name starts with a star, no dump happens. */ 47 const char *name; 48 49 /* The -fopt-info optimization group flags as defined in dumpfile.h. */ 50 unsigned int optinfo_flags; 51 52 /* The timevar id associated with this pass. */ 53 /* ??? Ideally would be dynamically assigned. */ 54 timevar_id_t tv_id; 55 56 /* Sets of properties input and output from this pass. */ 57 unsigned int properties_required; 58 unsigned int properties_provided; 59 unsigned int properties_destroyed; 60 61 /* Flags indicating common sets things to do before and after. */ 62 unsigned int todo_flags_start; 63 unsigned int todo_flags_finish; 64 }; 65 66 namespace gcc 67 { 68 class context; 69 } // namespace gcc 70 71 /* An instance of a pass. This is also "pass_data" to minimize the 72 changes in existing code. */ 73 class opt_pass : public pass_data 74 { 75 public: 76 virtual ~opt_pass () { } 77 78 /* Create a copy of this pass. 79 80 Passes that can have multiple instances must provide their own 81 implementation of this, to ensure that any sharing of state between 82 this instance and the copy is "wired up" correctly. 83 84 The default implementation prints an error message and aborts. */ 85 virtual opt_pass *clone (); 86 87 /* This pass and all sub-passes are executed only if the function returns 88 true. The default implementation returns true. */ 89 virtual bool gate (function *fun); 90 91 /* This is the code to run. If this is not overridden, then there should 92 be sub-passes otherwise this pass does nothing. 93 The return value contains TODOs to execute in addition to those in 94 TODO_flags_finish. */ 95 virtual unsigned int execute (function *fun); 96 97 protected: 98 opt_pass (const pass_data&, gcc::context *); 99 100 public: 101 /* A list of sub-passes to run, dependent on gate predicate. */ 102 opt_pass *sub; 103 104 /* Next in the list of passes to run, independent of gate predicate. */ 105 opt_pass *next; 106 107 /* Static pass number, used as a fragment of the dump file name. */ 108 int static_pass_number; 109 110 /* When a given dump file is being initialized, this flag is set to 111 true if the corresponding TDF_graph dump file has also been 112 initialized. */ 113 bool graph_dump_initialized; 114 115 protected: 116 gcc::context *m_ctxt; 117 }; 118 119 /* Description of GIMPLE pass. */ 120 class gimple_opt_pass : public opt_pass 121 { 122 protected: 123 gimple_opt_pass (const pass_data& data, gcc::context *ctxt) 124 : opt_pass (data, ctxt) 125 { 126 } 127 }; 128 129 /* Description of RTL pass. */ 130 class rtl_opt_pass : public opt_pass 131 { 132 protected: 133 rtl_opt_pass (const pass_data& data, gcc::context *ctxt) 134 : opt_pass (data, ctxt) 135 { 136 } 137 }; 138 139 class varpool_node; 140 struct cgraph_node; 141 struct lto_symtab_encoder_d; 142 143 /* Description of IPA pass with generate summary, write, execute, read and 144 transform stages. */ 145 class ipa_opt_pass_d : public opt_pass 146 { 147 public: 148 /* IPA passes can analyze function body and variable initializers 149 using this hook and produce summary. */ 150 void (*generate_summary) (void); 151 152 /* This hook is used to serialize IPA summaries on disk. */ 153 void (*write_summary) (void); 154 155 /* This hook is used to deserialize IPA summaries from disk. */ 156 void (*read_summary) (void); 157 158 /* This hook is used to serialize IPA optimization summaries on disk. */ 159 void (*write_optimization_summary) (void); 160 161 /* This hook is used to deserialize IPA summaries from disk. */ 162 void (*read_optimization_summary) (void); 163 164 /* Hook to convert gimple stmt uids into true gimple statements. The second 165 parameter is an array of statements indexed by their uid. */ 166 void (*stmt_fixup) (struct cgraph_node *, gimple *); 167 168 /* Results of interprocedural propagation of an IPA pass is applied to 169 function body via this hook. */ 170 unsigned int function_transform_todo_flags_start; 171 unsigned int (*function_transform) (struct cgraph_node *); 172 void (*variable_transform) (varpool_node *); 173 174 protected: 175 ipa_opt_pass_d (const pass_data& data, gcc::context *ctxt, 176 void (*generate_summary) (void), 177 void (*write_summary) (void), 178 void (*read_summary) (void), 179 void (*write_optimization_summary) (void), 180 void (*read_optimization_summary) (void), 181 void (*stmt_fixup) (struct cgraph_node *, gimple *), 182 unsigned int function_transform_todo_flags_start, 183 unsigned int (*function_transform) (struct cgraph_node *), 184 void (*variable_transform) (varpool_node *)) 185 : opt_pass (data, ctxt), 186 generate_summary (generate_summary), 187 write_summary (write_summary), 188 read_summary (read_summary), 189 write_optimization_summary (write_optimization_summary), 190 read_optimization_summary (read_optimization_summary), 191 stmt_fixup (stmt_fixup), 192 function_transform_todo_flags_start (function_transform_todo_flags_start), 193 function_transform (function_transform), 194 variable_transform (variable_transform) 195 { 196 } 197 }; 198 199 /* Description of simple IPA pass. Simple IPA passes have just one execute 200 hook. */ 201 class simple_ipa_opt_pass : public opt_pass 202 { 203 protected: 204 simple_ipa_opt_pass (const pass_data& data, gcc::context *ctxt) 205 : opt_pass (data, ctxt) 206 { 207 } 208 }; 209 210 /* Pass properties. */ 211 #define PROP_gimple_any (1 << 0) /* entire gimple grammar */ 212 #define PROP_gimple_lcf (1 << 1) /* lowered control flow */ 213 #define PROP_gimple_leh (1 << 2) /* lowered eh */ 214 #define PROP_cfg (1 << 3) 215 #define PROP_ssa (1 << 5) 216 #define PROP_no_crit_edges (1 << 6) 217 #define PROP_rtl (1 << 7) 218 #define PROP_gimple_lomp (1 << 8) /* lowered OpenMP directives */ 219 #define PROP_cfglayout (1 << 9) /* cfglayout mode on RTL */ 220 #define PROP_gimple_lcx (1 << 10) /* lowered complex */ 221 #define PROP_loops (1 << 11) /* preserve loop structures */ 222 #define PROP_gimple_lvec (1 << 12) /* lowered vector */ 223 #define PROP_gimple_eomp (1 << 13) /* no OpenMP directives */ 224 225 #define PROP_trees \ 226 (PROP_gimple_any | PROP_gimple_lcf | PROP_gimple_leh | PROP_gimple_lomp) 227 228 /* To-do flags. */ 229 #define TODO_do_not_ggc_collect (1 << 1) 230 #define TODO_cleanup_cfg (1 << 5) 231 #define TODO_verify_il (1 << 6) 232 #define TODO_dump_symtab (1 << 7) 233 #define TODO_remove_functions (1 << 8) 234 #define TODO_rebuild_frequencies (1 << 9) 235 236 /* To-do flags for calls to update_ssa. */ 237 238 /* Update the SSA form inserting PHI nodes for newly exposed symbols 239 and virtual names marked for updating. When updating real names, 240 only insert PHI nodes for a real name O_j in blocks reached by all 241 the new and old definitions for O_j. If the iterated dominance 242 frontier for O_j is not pruned, we may end up inserting PHI nodes 243 in blocks that have one or more edges with no incoming definition 244 for O_j. This would lead to uninitialized warnings for O_j's 245 symbol. */ 246 #define TODO_update_ssa (1 << 11) 247 248 /* Update the SSA form without inserting any new PHI nodes at all. 249 This is used by passes that have either inserted all the PHI nodes 250 themselves or passes that need only to patch use-def and def-def 251 chains for virtuals (e.g., DCE). */ 252 #define TODO_update_ssa_no_phi (1 << 12) 253 254 /* Insert PHI nodes everywhere they are needed. No pruning of the 255 IDF is done. This is used by passes that need the PHI nodes for 256 O_j even if it means that some arguments will come from the default 257 definition of O_j's symbol. 258 259 WARNING: If you need to use this flag, chances are that your pass 260 may be doing something wrong. Inserting PHI nodes for an old name 261 where not all edges carry a new replacement may lead to silent 262 codegen errors or spurious uninitialized warnings. */ 263 #define TODO_update_ssa_full_phi (1 << 13) 264 265 /* Passes that update the SSA form on their own may want to delegate 266 the updating of virtual names to the generic updater. Since FUD 267 chains are easier to maintain, this simplifies the work they need 268 to do. NOTE: If this flag is used, any OLD->NEW mappings for real 269 names are explicitly destroyed and only the symbols marked for 270 renaming are processed. */ 271 #define TODO_update_ssa_only_virtuals (1 << 14) 272 273 /* Some passes leave unused local variables that can be removed from 274 cfun->local_decls. This reduces the size of dump files 275 and the memory footprint for VAR_DECLs. */ 276 #define TODO_remove_unused_locals (1 << 15) 277 278 /* Call df_finish at the end of the pass. This is done after all of 279 the dumpers have been allowed to run so that they have access to 280 the instance before it is destroyed. */ 281 #define TODO_df_finish (1 << 17) 282 283 /* Call df_verify at the end of the pass if checking is enabled. */ 284 #define TODO_df_verify (1 << 18) 285 286 /* Internally used for the first instance of a pass. */ 287 #define TODO_mark_first_instance (1 << 19) 288 289 /* Rebuild aliasing info. */ 290 #define TODO_rebuild_alias (1 << 20) 291 292 /* Rebuild the addressable-vars bitmap and do register promotion. */ 293 #define TODO_update_address_taken (1 << 21) 294 295 /* Rebuild the callgraph edges. */ 296 #define TODO_rebuild_cgraph_edges (1 << 22) 297 298 /* Internally used in execute_function_todo(). */ 299 #define TODO_update_ssa_any \ 300 (TODO_update_ssa \ 301 | TODO_update_ssa_no_phi \ 302 | TODO_update_ssa_full_phi \ 303 | TODO_update_ssa_only_virtuals) 304 305 #define TODO_verify_all TODO_verify_il 306 307 308 /* Register pass info. */ 309 310 enum pass_positioning_ops 311 { 312 PASS_POS_INSERT_AFTER, /* Insert after the reference pass. */ 313 PASS_POS_INSERT_BEFORE, /* Insert before the reference pass. */ 314 PASS_POS_REPLACE /* Replace the reference pass. */ 315 }; 316 317 struct register_pass_info 318 { 319 opt_pass *pass; /* New pass to register. */ 320 const char *reference_pass_name; /* Name of the reference pass for hooking 321 up the new pass. */ 322 int ref_pass_instance_number; /* Insert the pass at the specified 323 instance number of the reference pass. 324 Do it for every instance if it is 0. */ 325 enum pass_positioning_ops pos_op; /* how to insert the new pass. */ 326 }; 327 328 /* Registers a new pass. Either fill out the register_pass_info or specify 329 the individual parameters. The pass object is expected to have been 330 allocated using operator new and the pass manager takes the ownership of 331 the pass object. */ 332 extern void register_pass (register_pass_info *); 333 extern void register_pass (opt_pass* pass, pass_positioning_ops pos, 334 const char* ref_pass_name, int ref_pass_inst_number); 335 336 extern simple_ipa_opt_pass *make_pass_ipa_chkp_versioning (gcc::context *ctxt); 337 extern simple_ipa_opt_pass *make_pass_ipa_chkp_early_produce_thunks (gcc::context *ctxt); 338 extern simple_ipa_opt_pass *make_pass_ipa_chkp_produce_thunks (gcc::context *ctxt); 339 extern gimple_opt_pass *make_pass_chkp (gcc::context *ctxt); 340 extern gimple_opt_pass *make_pass_chkp_opt (gcc::context *ctxt); 341 extern gimple_opt_pass *make_pass_asan (gcc::context *ctxt); 342 extern gimple_opt_pass *make_pass_asan_O0 (gcc::context *ctxt); 343 extern gimple_opt_pass *make_pass_tsan (gcc::context *ctxt); 344 extern gimple_opt_pass *make_pass_tsan_O0 (gcc::context *ctxt); 345 extern gimple_opt_pass *make_pass_lower_cf (gcc::context *ctxt); 346 extern gimple_opt_pass *make_pass_refactor_eh (gcc::context *ctxt); 347 extern gimple_opt_pass *make_pass_lower_eh (gcc::context *ctxt); 348 extern gimple_opt_pass *make_pass_lower_eh_dispatch (gcc::context *ctxt); 349 extern gimple_opt_pass *make_pass_lower_resx (gcc::context *ctxt); 350 extern gimple_opt_pass *make_pass_build_cfg (gcc::context *ctxt); 351 extern gimple_opt_pass *make_pass_early_tree_profile (gcc::context *ctxt); 352 extern gimple_opt_pass *make_pass_cleanup_eh (gcc::context *ctxt); 353 extern gimple_opt_pass *make_pass_sra (gcc::context *ctxt); 354 extern gimple_opt_pass *make_pass_sra_early (gcc::context *ctxt); 355 extern gimple_opt_pass *make_pass_early_ipa_sra (gcc::context *ctxt); 356 extern gimple_opt_pass *make_pass_tail_recursion (gcc::context *ctxt); 357 extern gimple_opt_pass *make_pass_tail_calls (gcc::context *ctxt); 358 extern gimple_opt_pass *make_pass_fix_loops (gcc::context *ctxt); 359 extern gimple_opt_pass *make_pass_tree_loop (gcc::context *ctxt); 360 extern gimple_opt_pass *make_pass_tree_no_loop (gcc::context *ctxt); 361 extern gimple_opt_pass *make_pass_tree_loop_init (gcc::context *ctxt); 362 extern gimple_opt_pass *make_pass_lim (gcc::context *ctxt); 363 extern gimple_opt_pass *make_pass_tree_unswitch (gcc::context *ctxt); 364 extern gimple_opt_pass *make_pass_predcom (gcc::context *ctxt); 365 extern gimple_opt_pass *make_pass_iv_canon (gcc::context *ctxt); 366 extern gimple_opt_pass *make_pass_scev_cprop (gcc::context *ctxt); 367 extern gimple_opt_pass *make_pass_empty_loop (gcc::context *ctxt); 368 extern gimple_opt_pass *make_pass_record_bounds (gcc::context *ctxt); 369 extern gimple_opt_pass *make_pass_graphite (gcc::context *ctxt); 370 extern gimple_opt_pass *make_pass_graphite_transforms (gcc::context *ctxt); 371 extern gimple_opt_pass *make_pass_if_conversion (gcc::context *ctxt); 372 extern gimple_opt_pass *make_pass_loop_distribution (gcc::context *ctxt); 373 extern gimple_opt_pass *make_pass_vectorize (gcc::context *ctxt); 374 extern gimple_opt_pass *make_pass_simduid_cleanup (gcc::context *ctxt); 375 extern gimple_opt_pass *make_pass_slp_vectorize (gcc::context *ctxt); 376 extern gimple_opt_pass *make_pass_complete_unroll (gcc::context *ctxt); 377 extern gimple_opt_pass *make_pass_complete_unrolli (gcc::context *ctxt); 378 extern gimple_opt_pass *make_pass_parallelize_loops (gcc::context *ctxt); 379 extern gimple_opt_pass *make_pass_loop_prefetch (gcc::context *ctxt); 380 extern gimple_opt_pass *make_pass_iv_optimize (gcc::context *ctxt); 381 extern gimple_opt_pass *make_pass_tree_loop_done (gcc::context *ctxt); 382 extern gimple_opt_pass *make_pass_ch (gcc::context *ctxt); 383 extern gimple_opt_pass *make_pass_ccp (gcc::context *ctxt); 384 extern gimple_opt_pass *make_pass_phi_only_cprop (gcc::context *ctxt); 385 extern gimple_opt_pass *make_pass_build_ssa (gcc::context *ctxt); 386 extern gimple_opt_pass *make_pass_build_alias (gcc::context *ctxt); 387 extern gimple_opt_pass *make_pass_build_ealias (gcc::context *ctxt); 388 extern gimple_opt_pass *make_pass_dominator (gcc::context *ctxt); 389 extern gimple_opt_pass *make_pass_dce (gcc::context *ctxt); 390 extern gimple_opt_pass *make_pass_cd_dce (gcc::context *ctxt); 391 extern gimple_opt_pass *make_pass_call_cdce (gcc::context *ctxt); 392 extern gimple_opt_pass *make_pass_merge_phi (gcc::context *ctxt); 393 extern gimple_opt_pass *make_pass_split_crit_edges (gcc::context *ctxt); 394 extern gimple_opt_pass *make_pass_pre (gcc::context *ctxt); 395 extern unsigned int tail_merge_optimize (unsigned int); 396 extern gimple_opt_pass *make_pass_profile (gcc::context *ctxt); 397 extern gimple_opt_pass *make_pass_strip_predict_hints (gcc::context *ctxt); 398 extern gimple_opt_pass *make_pass_lower_complex_O0 (gcc::context *ctxt); 399 extern gimple_opt_pass *make_pass_lower_complex (gcc::context *ctxt); 400 extern gimple_opt_pass *make_pass_lower_vector (gcc::context *ctxt); 401 extern gimple_opt_pass *make_pass_lower_vector_ssa (gcc::context *ctxt); 402 extern gimple_opt_pass *make_pass_lower_omp (gcc::context *ctxt); 403 extern gimple_opt_pass *make_pass_diagnose_omp_blocks (gcc::context *ctxt); 404 extern gimple_opt_pass *make_pass_expand_omp (gcc::context *ctxt); 405 extern gimple_opt_pass *make_pass_expand_omp_ssa (gcc::context *ctxt); 406 extern gimple_opt_pass *make_pass_object_sizes (gcc::context *ctxt); 407 extern gimple_opt_pass *make_pass_strlen (gcc::context *ctxt); 408 extern gimple_opt_pass *make_pass_fold_builtins (gcc::context *ctxt); 409 extern gimple_opt_pass *make_pass_stdarg (gcc::context *ctxt); 410 extern gimple_opt_pass *make_pass_early_warn_uninitialized (gcc::context *ctxt); 411 extern gimple_opt_pass *make_pass_late_warn_uninitialized (gcc::context *ctxt); 412 extern gimple_opt_pass *make_pass_cse_reciprocals (gcc::context *ctxt); 413 extern gimple_opt_pass *make_pass_cse_sincos (gcc::context *ctxt); 414 extern gimple_opt_pass *make_pass_optimize_bswap (gcc::context *ctxt); 415 extern gimple_opt_pass *make_pass_optimize_widening_mul (gcc::context *ctxt); 416 extern gimple_opt_pass *make_pass_warn_function_return (gcc::context *ctxt); 417 extern gimple_opt_pass *make_pass_warn_function_noreturn (gcc::context *ctxt); 418 extern gimple_opt_pass *make_pass_cselim (gcc::context *ctxt); 419 extern gimple_opt_pass *make_pass_phiopt (gcc::context *ctxt); 420 extern gimple_opt_pass *make_pass_forwprop (gcc::context *ctxt); 421 extern gimple_opt_pass *make_pass_phiprop (gcc::context *ctxt); 422 extern gimple_opt_pass *make_pass_tree_ifcombine (gcc::context *ctxt); 423 extern gimple_opt_pass *make_pass_dse (gcc::context *ctxt); 424 extern gimple_opt_pass *make_pass_nrv (gcc::context *ctxt); 425 extern gimple_opt_pass *make_pass_rename_ssa_copies (gcc::context *ctxt); 426 extern gimple_opt_pass *make_pass_sink_code (gcc::context *ctxt); 427 extern gimple_opt_pass *make_pass_fre (gcc::context *ctxt); 428 extern gimple_opt_pass *make_pass_check_data_deps (gcc::context *ctxt); 429 extern gimple_opt_pass *make_pass_copy_prop (gcc::context *ctxt); 430 extern gimple_opt_pass *make_pass_isolate_erroneous_paths (gcc::context *ctxt); 431 extern gimple_opt_pass *make_pass_vrp (gcc::context *ctxt); 432 extern gimple_opt_pass *make_pass_uncprop (gcc::context *ctxt); 433 extern gimple_opt_pass *make_pass_return_slot (gcc::context *ctxt); 434 extern gimple_opt_pass *make_pass_reassoc (gcc::context *ctxt); 435 extern gimple_opt_pass *make_pass_rebuild_cgraph_edges (gcc::context *ctxt); 436 extern gimple_opt_pass *make_pass_remove_cgraph_callee_edges (gcc::context 437 *ctxt); 438 extern gimple_opt_pass *make_pass_build_cgraph_edges (gcc::context *ctxt); 439 extern gimple_opt_pass *make_pass_local_pure_const (gcc::context *ctxt); 440 extern gimple_opt_pass *make_pass_nothrow (gcc::context *ctxt); 441 extern gimple_opt_pass *make_pass_tracer (gcc::context *ctxt); 442 extern gimple_opt_pass *make_pass_warn_unused_result (gcc::context *ctxt); 443 extern gimple_opt_pass *make_pass_diagnose_tm_blocks (gcc::context *ctxt); 444 extern gimple_opt_pass *make_pass_lower_tm (gcc::context *ctxt); 445 extern gimple_opt_pass *make_pass_tm_init (gcc::context *ctxt); 446 extern gimple_opt_pass *make_pass_tm_mark (gcc::context *ctxt); 447 extern gimple_opt_pass *make_pass_tm_memopt (gcc::context *ctxt); 448 extern gimple_opt_pass *make_pass_tm_edges (gcc::context *ctxt); 449 extern gimple_opt_pass *make_pass_split_functions (gcc::context *ctxt); 450 extern gimple_opt_pass *make_pass_feedback_split_functions (gcc::context *ctxt); 451 extern gimple_opt_pass *make_pass_strength_reduction (gcc::context *ctxt); 452 extern gimple_opt_pass *make_pass_vtable_verify (gcc::context *ctxt); 453 extern gimple_opt_pass *make_pass_ubsan (gcc::context *ctxt); 454 extern gimple_opt_pass *make_pass_sanopt (gcc::context *ctxt); 455 456 /* IPA Passes */ 457 extern simple_ipa_opt_pass *make_pass_ipa_lower_emutls (gcc::context *ctxt); 458 extern simple_ipa_opt_pass 459 *make_pass_ipa_function_and_variable_visibility (gcc::context *ctxt); 460 extern simple_ipa_opt_pass *make_pass_ipa_tree_profile (gcc::context *ctxt); 461 extern simple_ipa_opt_pass *make_pass_ipa_auto_profile (gcc::context *ctxt); 462 463 extern simple_ipa_opt_pass *make_pass_build_ssa_passes (gcc::context *ctxt); 464 extern simple_ipa_opt_pass *make_pass_chkp_instrumentation_passes (gcc::context *ctxt); 465 extern simple_ipa_opt_pass *make_pass_local_optimization_passes (gcc::context *ctxt); 466 467 extern ipa_opt_pass_d *make_pass_ipa_whole_program_visibility (gcc::context 468 *ctxt); 469 extern simple_ipa_opt_pass *make_pass_ipa_increase_alignment (gcc::context 470 *ctxt); 471 extern ipa_opt_pass_d *make_pass_ipa_inline (gcc::context *ctxt); 472 extern simple_ipa_opt_pass *make_pass_ipa_free_lang_data (gcc::context *ctxt); 473 extern simple_ipa_opt_pass *make_pass_ipa_free_inline_summary (gcc::context 474 *ctxt); 475 extern ipa_opt_pass_d *make_pass_ipa_cp (gcc::context *ctxt); 476 extern ipa_opt_pass_d *make_pass_ipa_icf (gcc::context *ctxt); 477 extern ipa_opt_pass_d *make_pass_ipa_devirt (gcc::context *ctxt); 478 extern ipa_opt_pass_d *make_pass_ipa_reference (gcc::context *ctxt); 479 extern ipa_opt_pass_d *make_pass_ipa_pure_const (gcc::context *ctxt); 480 extern simple_ipa_opt_pass *make_pass_ipa_pta (gcc::context *ctxt); 481 extern simple_ipa_opt_pass *make_pass_ipa_tm (gcc::context *ctxt); 482 extern simple_ipa_opt_pass *make_pass_omp_simd_clone (gcc::context *ctxt); 483 extern ipa_opt_pass_d *make_pass_ipa_profile (gcc::context *ctxt); 484 extern ipa_opt_pass_d *make_pass_ipa_cdtor_merge (gcc::context *ctxt); 485 extern ipa_opt_pass_d *make_pass_ipa_single_use (gcc::context *ctxt); 486 extern ipa_opt_pass_d *make_pass_ipa_comdats (gcc::context *ctxt); 487 488 extern gimple_opt_pass *make_pass_cleanup_cfg_post_optimizing (gcc::context 489 *ctxt); 490 extern gimple_opt_pass *make_pass_init_datastructures (gcc::context *ctxt); 491 extern gimple_opt_pass *make_pass_fixup_cfg (gcc::context *ctxt); 492 493 extern rtl_opt_pass *make_pass_expand (gcc::context *ctxt); 494 extern rtl_opt_pass *make_pass_instantiate_virtual_regs (gcc::context *ctxt); 495 extern rtl_opt_pass *make_pass_rtl_fwprop (gcc::context *ctxt); 496 extern rtl_opt_pass *make_pass_rtl_fwprop_addr (gcc::context *ctxt); 497 extern rtl_opt_pass *make_pass_jump (gcc::context *ctxt); 498 extern rtl_opt_pass *make_pass_jump2 (gcc::context *ctxt); 499 extern rtl_opt_pass *make_pass_lower_subreg (gcc::context *ctxt); 500 extern rtl_opt_pass *make_pass_cse (gcc::context *ctxt); 501 extern rtl_opt_pass *make_pass_fast_rtl_dce (gcc::context *ctxt); 502 extern rtl_opt_pass *make_pass_ud_rtl_dce (gcc::context *ctxt); 503 extern rtl_opt_pass *make_pass_rtl_dce (gcc::context *ctxt); 504 extern rtl_opt_pass *make_pass_rtl_dse1 (gcc::context *ctxt); 505 extern rtl_opt_pass *make_pass_rtl_dse2 (gcc::context *ctxt); 506 extern rtl_opt_pass *make_pass_rtl_dse3 (gcc::context *ctxt); 507 extern rtl_opt_pass *make_pass_rtl_cprop (gcc::context *ctxt); 508 extern rtl_opt_pass *make_pass_rtl_pre (gcc::context *ctxt); 509 extern rtl_opt_pass *make_pass_rtl_hoist (gcc::context *ctxt); 510 extern rtl_opt_pass *make_pass_rtl_store_motion (gcc::context *ctxt); 511 extern rtl_opt_pass *make_pass_cse_after_global_opts (gcc::context *ctxt); 512 extern rtl_opt_pass *make_pass_rtl_ifcvt (gcc::context *ctxt); 513 514 extern rtl_opt_pass *make_pass_into_cfg_layout_mode (gcc::context *ctxt); 515 extern rtl_opt_pass *make_pass_outof_cfg_layout_mode (gcc::context *ctxt); 516 517 extern rtl_opt_pass *make_pass_loop2 (gcc::context *ctxt); 518 extern rtl_opt_pass *make_pass_rtl_loop_init (gcc::context *ctxt); 519 extern rtl_opt_pass *make_pass_rtl_move_loop_invariants (gcc::context *ctxt); 520 extern rtl_opt_pass *make_pass_rtl_unroll_loops (gcc::context *ctxt); 521 extern rtl_opt_pass *make_pass_rtl_doloop (gcc::context *ctxt); 522 extern rtl_opt_pass *make_pass_rtl_loop_done (gcc::context *ctxt); 523 524 extern rtl_opt_pass *make_pass_web (gcc::context *ctxt); 525 extern rtl_opt_pass *make_pass_cse2 (gcc::context *ctxt); 526 extern rtl_opt_pass *make_pass_df_initialize_opt (gcc::context *ctxt); 527 extern rtl_opt_pass *make_pass_df_initialize_no_opt (gcc::context *ctxt); 528 extern rtl_opt_pass *make_pass_reginfo_init (gcc::context *ctxt); 529 extern rtl_opt_pass *make_pass_inc_dec (gcc::context *ctxt); 530 extern rtl_opt_pass *make_pass_stack_ptr_mod (gcc::context *ctxt); 531 extern rtl_opt_pass *make_pass_initialize_regs (gcc::context *ctxt); 532 extern rtl_opt_pass *make_pass_combine (gcc::context *ctxt); 533 extern rtl_opt_pass *make_pass_if_after_combine (gcc::context *ctxt); 534 extern rtl_opt_pass *make_pass_ree (gcc::context *ctxt); 535 extern rtl_opt_pass *make_pass_partition_blocks (gcc::context *ctxt); 536 extern rtl_opt_pass *make_pass_match_asm_constraints (gcc::context *ctxt); 537 extern rtl_opt_pass *make_pass_split_all_insns (gcc::context *ctxt); 538 extern rtl_opt_pass *make_pass_fast_rtl_byte_dce (gcc::context *ctxt); 539 extern rtl_opt_pass *make_pass_lower_subreg2 (gcc::context *ctxt); 540 extern rtl_opt_pass *make_pass_mode_switching (gcc::context *ctxt); 541 extern rtl_opt_pass *make_pass_sms (gcc::context *ctxt); 542 extern rtl_opt_pass *make_pass_sched (gcc::context *ctxt); 543 extern rtl_opt_pass *make_pass_live_range_shrinkage (gcc::context *ctxt); 544 extern rtl_opt_pass *make_pass_ira (gcc::context *ctxt); 545 extern rtl_opt_pass *make_pass_reload (gcc::context *ctxt); 546 extern rtl_opt_pass *make_pass_clean_state (gcc::context *ctxt); 547 extern rtl_opt_pass *make_pass_branch_prob (gcc::context *ctxt); 548 extern rtl_opt_pass *make_pass_value_profile_transformations (gcc::context 549 *ctxt); 550 extern rtl_opt_pass *make_pass_postreload_cse (gcc::context *ctxt); 551 extern rtl_opt_pass *make_pass_gcse2 (gcc::context *ctxt); 552 extern rtl_opt_pass *make_pass_split_after_reload (gcc::context *ctxt); 553 extern rtl_opt_pass *make_pass_branch_target_load_optimize1 (gcc::context 554 *ctxt); 555 extern rtl_opt_pass *make_pass_thread_prologue_and_epilogue (gcc::context 556 *ctxt); 557 extern rtl_opt_pass *make_pass_stack_adjustments (gcc::context *ctxt); 558 extern rtl_opt_pass *make_pass_sched_fusion (gcc::context *ctxt); 559 extern rtl_opt_pass *make_pass_peephole2 (gcc::context *ctxt); 560 extern rtl_opt_pass *make_pass_if_after_reload (gcc::context *ctxt); 561 extern rtl_opt_pass *make_pass_regrename (gcc::context *ctxt); 562 extern rtl_opt_pass *make_pass_cprop_hardreg (gcc::context *ctxt); 563 extern rtl_opt_pass *make_pass_reorder_blocks (gcc::context *ctxt); 564 extern rtl_opt_pass *make_pass_branch_target_load_optimize2 (gcc::context 565 *ctxt); 566 extern rtl_opt_pass *make_pass_leaf_regs (gcc::context *ctxt); 567 extern rtl_opt_pass *make_pass_split_before_sched2 (gcc::context *ctxt); 568 extern rtl_opt_pass *make_pass_compare_elim_after_reload (gcc::context *ctxt); 569 extern rtl_opt_pass *make_pass_sched2 (gcc::context *ctxt); 570 extern rtl_opt_pass *make_pass_stack_regs (gcc::context *ctxt); 571 extern rtl_opt_pass *make_pass_stack_regs_run (gcc::context *ctxt); 572 extern rtl_opt_pass *make_pass_df_finish (gcc::context *ctxt); 573 extern rtl_opt_pass *make_pass_compute_alignments (gcc::context *ctxt); 574 extern rtl_opt_pass *make_pass_duplicate_computed_gotos (gcc::context *ctxt); 575 extern rtl_opt_pass *make_pass_variable_tracking (gcc::context *ctxt); 576 extern rtl_opt_pass *make_pass_free_cfg (gcc::context *ctxt); 577 extern rtl_opt_pass *make_pass_machine_reorg (gcc::context *ctxt); 578 extern rtl_opt_pass *make_pass_cleanup_barriers (gcc::context *ctxt); 579 extern rtl_opt_pass *make_pass_delay_slots (gcc::context *ctxt); 580 extern rtl_opt_pass *make_pass_split_for_shorten_branches (gcc::context *ctxt); 581 extern rtl_opt_pass *make_pass_split_before_regstack (gcc::context *ctxt); 582 extern rtl_opt_pass *make_pass_convert_to_eh_region_ranges (gcc::context *ctxt); 583 extern rtl_opt_pass *make_pass_shorten_branches (gcc::context *ctxt); 584 extern rtl_opt_pass *make_pass_set_nothrow_function_flags (gcc::context *ctxt); 585 extern rtl_opt_pass *make_pass_dwarf2_frame (gcc::context *ctxt); 586 extern rtl_opt_pass *make_pass_final (gcc::context *ctxt); 587 extern rtl_opt_pass *make_pass_rtl_seqabstr (gcc::context *ctxt); 588 extern gimple_opt_pass *make_pass_release_ssa_names (gcc::context *ctxt); 589 extern gimple_opt_pass *make_pass_early_inline (gcc::context *ctxt); 590 extern gimple_opt_pass *make_pass_inline_parameters (gcc::context *ctxt); 591 extern gimple_opt_pass *make_pass_update_address_taken (gcc::context *ctxt); 592 extern gimple_opt_pass *make_pass_convert_switch (gcc::context *ctxt); 593 594 /* Current optimization pass. */ 595 extern opt_pass *current_pass; 596 597 extern bool execute_one_pass (opt_pass *); 598 extern void execute_pass_list (function *, opt_pass *); 599 extern void execute_ipa_pass_list (opt_pass *); 600 extern void execute_ipa_summary_passes (ipa_opt_pass_d *); 601 extern void execute_all_ipa_transforms (void); 602 extern void execute_all_ipa_stmt_fixups (struct cgraph_node *, gimple *); 603 extern bool pass_init_dump_file (opt_pass *); 604 extern void pass_fini_dump_file (opt_pass *); 605 606 extern const char *get_current_pass_name (void); 607 extern void print_current_pass (FILE *); 608 extern void debug_pass (void); 609 extern void ipa_write_summaries (void); 610 extern void ipa_write_optimization_summaries (struct lto_symtab_encoder_d *); 611 extern void ipa_read_summaries (void); 612 extern void ipa_read_optimization_summaries (void); 613 extern void register_one_dump_file (opt_pass *); 614 extern bool function_called_by_processed_nodes_p (void); 615 616 /* Set to true if the pass is called the first time during compilation of the 617 current function. Note that using this information in the optimization 618 passes is considered not to be clean, and it should be avoided if possible. 619 This flag is currently used to prevent loops from being peeled repeatedly 620 in jump threading; it will be removed once we preserve loop structures 621 throughout the compilation -- we will be able to mark the affected loops 622 directly in jump threading, and avoid peeling them next time. */ 623 extern bool first_pass_instance; 624 625 /* Declare for plugins. */ 626 extern void do_per_function_toporder (void (*) (function *, void *), void *); 627 628 extern void disable_pass (const char *); 629 extern void enable_pass (const char *); 630 extern void dump_passes (void); 631 632 #endif /* GCC_TREE_PASS_H */ 633