gcc/tree-pass.h

   1 /* Definitions for describing one tree-ssa optimization pass.
   2    Copyright (C) 2004-2016 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   virtual void set_pass_param (unsigned int, bool);
  87
  88   /* This pass and all sub-passes are executed only if the function returns
  89      true.  The default implementation returns true.  */
  90   virtual bool gate (function *fun);
  91
  92   /* This is the code to run.  If this is not overridden, then there should
  93      be sub-passes otherwise this pass does nothing.
  94      The return value contains TODOs to execute in addition to those in
  95      TODO_flags_finish.   */
  96   virtual unsigned int execute (function *fun);
  97
  98 protected:
  99   opt_pass (const pass_data&, gcc::context *);
 100
 101 public:
 102   /* A list of sub-passes to run, dependent on gate predicate.  */
 103   opt_pass *sub;
 104
 105   /* Next in the list of passes to run, independent of gate predicate.  */
 106   opt_pass *next;
 107
 108   /* Static pass number, used as a fragment of the dump file name.  */
 109   int static_pass_number;
 110
 111   /* When a given dump file is being initialized, this flag is set to
 112      true if the corresponding TDF_graph dump file has also been
 113      initialized.  */
 114   bool graph_dump_initialized;
 115
 116 protected:
 117   gcc::context *m_ctxt;
 118 };
 119
 120 /* Description of GIMPLE pass.  */
 121 class gimple_opt_pass : public opt_pass
 122 {
 123 protected:
 124   gimple_opt_pass (const pass_data& data, gcc::context *ctxt)
 125     : opt_pass (data, ctxt)
 126   {
 127   }
 128 };
 129
 130 /* Description of RTL pass.  */
 131 class rtl_opt_pass : public opt_pass
 132 {
 133 protected:
 134   rtl_opt_pass (const pass_data& data, gcc::context *ctxt)
 135     : opt_pass (data, ctxt)
 136   {
 137   }
 138 };
 139
 140 class varpool_node;
 141 struct cgraph_node;
 142 struct lto_symtab_encoder_d;
 143
 144 /* Description of IPA pass with generate summary, write, execute, read and
 145    transform stages.  */
 146 class ipa_opt_pass_d : public opt_pass
 147 {
 148 public:
 149   /* IPA passes can analyze function body and variable initializers
 150       using this hook and produce summary.  */
 151   void (*generate_summary) (void);
 152
 153   /* This hook is used to serialize IPA summaries on disk.  */
 154   void (*write_summary) (void);
 155
 156   /* This hook is used to deserialize IPA summaries from disk.  */
 157   void (*read_summary) (void);
 158
 159   /* This hook is used to serialize IPA optimization summaries on disk.  */
 160   void (*write_optimization_summary) (void);
 161
 162   /* This hook is used to deserialize IPA summaries from disk.  */
 163   void (*read_optimization_summary) (void);
 164
 165   /* Hook to convert gimple stmt uids into true gimple statements.  The second
 166      parameter is an array of statements indexed by their uid. */
 167   void (*stmt_fixup) (struct cgraph_node *, gimple **);
 168
 169   /* Results of interprocedural propagation of an IPA pass is applied to
 170      function body via this hook.  */
 171   unsigned int function_transform_todo_flags_start;
 172   unsigned int (*function_transform) (struct cgraph_node *);
 173   void (*variable_transform) (varpool_node *);
 174
 175 protected:
 176   ipa_opt_pass_d (const pass_data& data, gcc::context *ctxt,
 177                   void (*generate_summary) (void),
 178                   void (*write_summary) (void),
 179                   void (*read_summary) (void),
 180                   void (*write_optimization_summary) (void),
 181                   void (*read_optimization_summary) (void),
 182                   void (*stmt_fixup) (struct cgraph_node *, gimple **),
 183                   unsigned int function_transform_todo_flags_start,
 184                   unsigned int (*function_transform) (struct cgraph_node *),
 185                   void (*variable_transform) (varpool_node *))
 186     : opt_pass (data, ctxt),
 187       generate_summary (generate_summary),
 188       write_summary (write_summary),
 189       read_summary (read_summary),
 190       write_optimization_summary (write_optimization_summary),
 191       read_optimization_summary (read_optimization_summary),
 192       stmt_fixup (stmt_fixup),
 193       function_transform_todo_flags_start (function_transform_todo_flags_start),
 194       function_transform (function_transform),
 195       variable_transform (variable_transform)
 196   {
 197   }
 198 };
 199
 200 /* Description of simple IPA pass.  Simple IPA passes have just one execute
 201    hook.  */
 202 class simple_ipa_opt_pass : public opt_pass
 203 {
 204 protected:
 205   simple_ipa_opt_pass (const pass_data& data, gcc::context *ctxt)
 206     : opt_pass (data, ctxt)
 207   {
 208   }
 209 };
 210
 211 /* Pass properties.  */
 212 #define PROP_gimple_any         (1 << 0)        /* entire gimple grammar */
 213 #define PROP_gimple_lcf         (1 << 1)        /* lowered control flow */
 214 #define PROP_gimple_leh         (1 << 2)        /* lowered eh */
 215 #define PROP_cfg                (1 << 3)
 216 #define PROP_ssa                (1 << 5)
 217 #define PROP_no_crit_edges      (1 << 6)
 218 #define PROP_rtl                (1 << 7)
 219 #define PROP_gimple_lomp        (1 << 8)        /* lowered OpenMP directives */
 220 #define PROP_cfglayout          (1 << 9)        /* cfglayout mode on RTL */
 221 #define PROP_gimple_lcx         (1 << 10)       /* lowered complex */
 222 #define PROP_loops              (1 << 11)       /* preserve loop structures */
 223 #define PROP_gimple_lvec        (1 << 12)       /* lowered vector */
 224 #define PROP_gimple_eomp        (1 << 13)       /* no OpenMP directives */
 225 #define PROP_gimple_lva         (1 << 14)       /* No va_arg internal function.  */
 226 #define PROP_gimple_opt_math    (1 << 15)       /* Disable canonicalization
 227                                                    of math functions; the
 228                                                    current choices have
 229                                                    been optimized.  */
 230
 231 #define PROP_trees \
 232   (PROP_gimple_any | PROP_gimple_lcf | PROP_gimple_leh | PROP_gimple_lomp)
 233
 234 /* To-do flags.  */
 235 #define TODO_do_not_ggc_collect         (1 << 1)
 236 #define TODO_cleanup_cfg                (1 << 5)
 237 #define TODO_verify_il                  (1 << 6)
 238 #define TODO_dump_symtab                (1 << 7)
 239 #define TODO_remove_functions           (1 << 8)
 240 #define TODO_rebuild_frequencies        (1 << 9)
 241
 242 /* To-do flags for calls to update_ssa.  */
 243
 244 /* Update the SSA form inserting PHI nodes for newly exposed symbols
 245    and virtual names marked for updating.  When updating real names,
 246    only insert PHI nodes for a real name O_j in blocks reached by all
 247    the new and old definitions for O_j.  If the iterated dominance
 248    frontier for O_j is not pruned, we may end up inserting PHI nodes
 249    in blocks that have one or more edges with no incoming definition
 250    for O_j.  This would lead to uninitialized warnings for O_j's
 251    symbol.  */
 252 #define TODO_update_ssa                 (1 << 11)
 253
 254 /* Update the SSA form without inserting any new PHI nodes at all.
 255    This is used by passes that have either inserted all the PHI nodes
 256    themselves or passes that need only to patch use-def and def-def
 257    chains for virtuals (e.g., DCE).  */
 258 #define TODO_update_ssa_no_phi          (1 << 12)
 259
 260 /* Insert PHI nodes everywhere they are needed.  No pruning of the
 261    IDF is done.  This is used by passes that need the PHI nodes for
 262    O_j even if it means that some arguments will come from the default
 263    definition of O_j's symbol.
 264
 265    WARNING: If you need to use this flag, chances are that your pass
 266    may be doing something wrong.  Inserting PHI nodes for an old name
 267    where not all edges carry a new replacement may lead to silent
 268    codegen errors or spurious uninitialized warnings.  */
 269 #define TODO_update_ssa_full_phi        (1 << 13)
 270
 271 /* Passes that update the SSA form on their own may want to delegate
 272    the updating of virtual names to the generic updater.  Since FUD
 273    chains are easier to maintain, this simplifies the work they need
 274    to do.  NOTE: If this flag is used, any OLD->NEW mappings for real
 275    names are explicitly destroyed and only the symbols marked for
 276    renaming are processed.  */
 277 #define TODO_update_ssa_only_virtuals   (1 << 14)
 278
 279 /* Some passes leave unused local variables that can be removed from
 280    cfun->local_decls.  This reduces the size of dump files
 281    and the memory footprint for VAR_DECLs.  */
 282 #define TODO_remove_unused_locals       (1 << 15)
 283
 284 /* Call df_finish at the end of the pass.  This is done after all of
 285    the dumpers have been allowed to run so that they have access to
 286    the instance before it is destroyed.  */
 287 #define TODO_df_finish                  (1 << 17)
 288
 289 /* Call df_verify at the end of the pass if checking is enabled.  */
 290 #define TODO_df_verify                  (1 << 18)
 291
 292 /* Internally used for the first instance of a pass.  */
 293 #define TODO_mark_first_instance        (1 << 19)
 294
 295 /* Rebuild aliasing info.  */
 296 #define TODO_rebuild_alias              (1 << 20)
 297
 298 /* Rebuild the addressable-vars bitmap and do register promotion.  */
 299 #define TODO_update_address_taken       (1 << 21)
 300
 301 /* Rebuild the callgraph edges.  */
 302 #define TODO_rebuild_cgraph_edges       (1 << 22)
 303
 304 /* Release function body and stop pass manager.  */
 305 #define TODO_discard_function           (1 << 23)
 306
 307 /* Internally used in execute_function_todo().  */
 308 #define TODO_update_ssa_any             \
 309     (TODO_update_ssa                    \
 310      | TODO_update_ssa_no_phi           \
 311      | TODO_update_ssa_full_phi         \
 312      | TODO_update_ssa_only_virtuals)
 313
 314 #define TODO_verify_all TODO_verify_il
 315
 316
 317 /* Register pass info. */
 318
 319 enum pass_positioning_ops
 320 {
 321   PASS_POS_INSERT_AFTER,  /* Insert after the reference pass.  */
 322   PASS_POS_INSERT_BEFORE, /* Insert before the reference pass.  */
 323   PASS_POS_REPLACE        /* Replace the reference pass.  */
 324 };
 325
 326 struct register_pass_info
 327 {
 328   opt_pass *pass;                   /* New pass to register.  */
 329   const char *reference_pass_name;  /* Name of the reference pass for hooking
 330                                        up the new pass.  */
 331   int ref_pass_instance_number;     /* Insert the pass at the specified
 332                                        instance number of the reference pass.
 333                                        Do it for every instance if it is 0.  */
 334   enum pass_positioning_ops pos_op; /* how to insert the new pass.  */
 335 };
 336
 337 /* Registers a new pass.  Either fill out the register_pass_info or specify
 338    the individual parameters.  The pass object is expected to have been
 339    allocated using operator new and the pass manager takes the ownership of
 340    the pass object.  */
 341 extern void register_pass (register_pass_info *);
 342 extern void register_pass (opt_pass* pass, pass_positioning_ops pos,
 343                            const char* ref_pass_name, int ref_pass_inst_number);
 344
 345 extern simple_ipa_opt_pass *make_pass_ipa_chkp_versioning (gcc::context *ctxt);
 346 extern simple_ipa_opt_pass *make_pass_ipa_chkp_early_produce_thunks (gcc::context *ctxt);
 347 extern simple_ipa_opt_pass *make_pass_ipa_chkp_produce_thunks (gcc::context *ctxt);
 348 extern gimple_opt_pass *make_pass_chkp (gcc::context *ctxt);
 349 extern gimple_opt_pass *make_pass_chkp_opt (gcc::context *ctxt);
 350 extern gimple_opt_pass *make_pass_asan (gcc::context *ctxt);
 351 extern gimple_opt_pass *make_pass_asan_O0 (gcc::context *ctxt);
 352 extern gimple_opt_pass *make_pass_tsan (gcc::context *ctxt);
 353 extern gimple_opt_pass *make_pass_tsan_O0 (gcc::context *ctxt);
 354 extern gimple_opt_pass *make_pass_sancov (gcc::context *ctxt);
 355 extern gimple_opt_pass *make_pass_sancov_O0 (gcc::context *ctxt);
 356 extern gimple_opt_pass *make_pass_lower_cf (gcc::context *ctxt);
 357 extern gimple_opt_pass *make_pass_refactor_eh (gcc::context *ctxt);
 358 extern gimple_opt_pass *make_pass_lower_eh (gcc::context *ctxt);
 359 extern gimple_opt_pass *make_pass_lower_eh_dispatch (gcc::context *ctxt);
 360 extern gimple_opt_pass *make_pass_lower_resx (gcc::context *ctxt);
 361 extern gimple_opt_pass *make_pass_build_cfg (gcc::context *ctxt);
 362 extern gimple_opt_pass *make_pass_early_tree_profile (gcc::context *ctxt);
 363 extern gimple_opt_pass *make_pass_cleanup_eh (gcc::context *ctxt);
 364 extern gimple_opt_pass *make_pass_sra (gcc::context *ctxt);
 365 extern gimple_opt_pass *make_pass_sra_early (gcc::context *ctxt);
 366 extern gimple_opt_pass *make_pass_early_ipa_sra (gcc::context *ctxt);
 367 extern gimple_opt_pass *make_pass_tail_recursion (gcc::context *ctxt);
 368 extern gimple_opt_pass *make_pass_tail_calls (gcc::context *ctxt);
 369 extern gimple_opt_pass *make_pass_fix_loops (gcc::context *ctxt);
 370 extern gimple_opt_pass *make_pass_tree_loop (gcc::context *ctxt);
 371 extern gimple_opt_pass *make_pass_tree_no_loop (gcc::context *ctxt);
 372 extern gimple_opt_pass *make_pass_tree_loop_init (gcc::context *ctxt);
 373 extern gimple_opt_pass *make_pass_lim (gcc::context *ctxt);
 374 extern gimple_opt_pass *make_pass_tree_unswitch (gcc::context *ctxt);
 375 extern gimple_opt_pass *make_pass_predcom (gcc::context *ctxt);
 376 extern gimple_opt_pass *make_pass_iv_canon (gcc::context *ctxt);
 377 extern gimple_opt_pass *make_pass_scev_cprop (gcc::context *ctxt);
 378 extern gimple_opt_pass *make_pass_empty_loop (gcc::context *ctxt);
 379 extern gimple_opt_pass *make_pass_record_bounds (gcc::context *ctxt);
 380 extern gimple_opt_pass *make_pass_graphite (gcc::context *ctxt);
 381 extern gimple_opt_pass *make_pass_graphite_transforms (gcc::context *ctxt);
 382 extern gimple_opt_pass *make_pass_if_conversion (gcc::context *ctxt);
 383 extern gimple_opt_pass *make_pass_loop_distribution (gcc::context *ctxt);
 384 extern gimple_opt_pass *make_pass_vectorize (gcc::context *ctxt);
 385 extern gimple_opt_pass *make_pass_simduid_cleanup (gcc::context *ctxt);
 386 extern gimple_opt_pass *make_pass_slp_vectorize (gcc::context *ctxt);
 387 extern gimple_opt_pass *make_pass_complete_unroll (gcc::context *ctxt);
 388 extern gimple_opt_pass *make_pass_complete_unrolli (gcc::context *ctxt);
 389 extern gimple_opt_pass *make_pass_parallelize_loops (gcc::context *ctxt);
 390 extern gimple_opt_pass *make_pass_loop_prefetch (gcc::context *ctxt);
 391 extern gimple_opt_pass *make_pass_iv_optimize (gcc::context *ctxt);
 392 extern gimple_opt_pass *make_pass_tree_loop_done (gcc::context *ctxt);
 393 extern gimple_opt_pass *make_pass_ch (gcc::context *ctxt);
 394 extern gimple_opt_pass *make_pass_ch_vect (gcc::context *ctxt);
 395 extern gimple_opt_pass *make_pass_ccp (gcc::context *ctxt);
 396 extern gimple_opt_pass *make_pass_split_paths (gcc::context *ctxt);
 397 extern gimple_opt_pass *make_pass_phi_only_cprop (gcc::context *ctxt);
 398 extern gimple_opt_pass *make_pass_build_ssa (gcc::context *ctxt);
 399 extern gimple_opt_pass *make_pass_build_alias (gcc::context *ctxt);
 400 extern gimple_opt_pass *make_pass_build_ealias (gcc::context *ctxt);
 401 extern gimple_opt_pass *make_pass_dominator (gcc::context *ctxt);
 402 extern gimple_opt_pass *make_pass_dce (gcc::context *ctxt);
 403 extern gimple_opt_pass *make_pass_cd_dce (gcc::context *ctxt);
 404 extern gimple_opt_pass *make_pass_call_cdce (gcc::context *ctxt);
 405 extern gimple_opt_pass *make_pass_merge_phi (gcc::context *ctxt);
 406 extern gimple_opt_pass *make_pass_split_crit_edges (gcc::context *ctxt);
 407 extern gimple_opt_pass *make_pass_laddress (gcc::context *ctxt);
 408 extern gimple_opt_pass *make_pass_pre (gcc::context *ctxt);
 409 extern unsigned int tail_merge_optimize (unsigned int);
 410 extern gimple_opt_pass *make_pass_profile (gcc::context *ctxt);
 411 extern gimple_opt_pass *make_pass_strip_predict_hints (gcc::context *ctxt);
 412 extern gimple_opt_pass *make_pass_lower_complex_O0 (gcc::context *ctxt);
 413 extern gimple_opt_pass *make_pass_lower_complex (gcc::context *ctxt);
 414 extern gimple_opt_pass *make_pass_lower_vector (gcc::context *ctxt);
 415 extern gimple_opt_pass *make_pass_lower_vector_ssa (gcc::context *ctxt);
 416 extern gimple_opt_pass *make_pass_lower_omp (gcc::context *ctxt);
 417 extern gimple_opt_pass *make_pass_diagnose_omp_blocks (gcc::context *ctxt);
 418 extern gimple_opt_pass *make_pass_expand_omp (gcc::context *ctxt);
 419 extern gimple_opt_pass *make_pass_expand_omp_ssa (gcc::context *ctxt);
 420 extern gimple_opt_pass *make_pass_omp_target_link (gcc::context *ctxt);
 421 extern gimple_opt_pass *make_pass_oacc_device_lower (gcc::context *ctxt);
 422 extern gimple_opt_pass *make_pass_object_sizes (gcc::context *ctxt);
 423 extern gimple_opt_pass *make_pass_strlen (gcc::context *ctxt);
 424 extern gimple_opt_pass *make_pass_fold_builtins (gcc::context *ctxt);
 425 extern gimple_opt_pass *make_pass_stdarg (gcc::context *ctxt);
 426 extern gimple_opt_pass *make_pass_early_warn_uninitialized (gcc::context *ctxt);
 427 extern gimple_opt_pass *make_pass_late_warn_uninitialized (gcc::context *ctxt);
 428 extern gimple_opt_pass *make_pass_cse_reciprocals (gcc::context *ctxt);
 429 extern gimple_opt_pass *make_pass_cse_sincos (gcc::context *ctxt);
 430 extern gimple_opt_pass *make_pass_optimize_bswap (gcc::context *ctxt);
 431 extern gimple_opt_pass *make_pass_optimize_widening_mul (gcc::context *ctxt);
 432 extern gimple_opt_pass *make_pass_warn_function_return (gcc::context *ctxt);
 433 extern gimple_opt_pass *make_pass_warn_function_noreturn (gcc::context *ctxt);
 434 extern gimple_opt_pass *make_pass_cselim (gcc::context *ctxt);
 435 extern gimple_opt_pass *make_pass_phiopt (gcc::context *ctxt);
 436 extern gimple_opt_pass *make_pass_forwprop (gcc::context *ctxt);
 437 extern gimple_opt_pass *make_pass_phiprop (gcc::context *ctxt);
 438 extern gimple_opt_pass *make_pass_tree_ifcombine (gcc::context *ctxt);
 439 extern gimple_opt_pass *make_pass_dse (gcc::context *ctxt);
 440 extern gimple_opt_pass *make_pass_nrv (gcc::context *ctxt);
 441 extern gimple_opt_pass *make_pass_rename_ssa_copies (gcc::context *ctxt);
 442 extern gimple_opt_pass *make_pass_sink_code (gcc::context *ctxt);
 443 extern gimple_opt_pass *make_pass_fre (gcc::context *ctxt);
 444 extern gimple_opt_pass *make_pass_check_data_deps (gcc::context *ctxt);
 445 extern gimple_opt_pass *make_pass_copy_prop (gcc::context *ctxt);
 446 extern gimple_opt_pass *make_pass_isolate_erroneous_paths (gcc::context *ctxt);
 447 extern gimple_opt_pass *make_pass_vrp (gcc::context *ctxt);
 448 extern gimple_opt_pass *make_pass_uncprop (gcc::context *ctxt);
 449 extern gimple_opt_pass *make_pass_return_slot (gcc::context *ctxt);
 450 extern gimple_opt_pass *make_pass_reassoc (gcc::context *ctxt);
 451 extern gimple_opt_pass *make_pass_rebuild_cgraph_edges (gcc::context *ctxt);
 452 extern gimple_opt_pass *make_pass_remove_cgraph_callee_edges (gcc::context
 453                                                               *ctxt);
 454 extern gimple_opt_pass *make_pass_build_cgraph_edges (gcc::context *ctxt);
 455 extern gimple_opt_pass *make_pass_local_pure_const (gcc::context *ctxt);
 456 extern gimple_opt_pass *make_pass_nothrow (gcc::context *ctxt);
 457 extern gimple_opt_pass *make_pass_tracer (gcc::context *ctxt);
 458 extern gimple_opt_pass *make_pass_warn_unused_result (gcc::context *ctxt);
 459 extern gimple_opt_pass *make_pass_diagnose_tm_blocks (gcc::context *ctxt);
 460 extern gimple_opt_pass *make_pass_lower_tm (gcc::context *ctxt);
 461 extern gimple_opt_pass *make_pass_tm_init (gcc::context *ctxt);
 462 extern gimple_opt_pass *make_pass_tm_mark (gcc::context *ctxt);
 463 extern gimple_opt_pass *make_pass_tm_memopt (gcc::context *ctxt);
 464 extern gimple_opt_pass *make_pass_tm_edges (gcc::context *ctxt);
 465 extern gimple_opt_pass *make_pass_split_functions (gcc::context *ctxt);
 466 extern gimple_opt_pass *make_pass_feedback_split_functions (gcc::context *ctxt);
 467 extern gimple_opt_pass *make_pass_strength_reduction (gcc::context *ctxt);
 468 extern gimple_opt_pass *make_pass_vtable_verify (gcc::context *ctxt);
 469 extern gimple_opt_pass *make_pass_ubsan (gcc::context *ctxt);
 470 extern gimple_opt_pass *make_pass_sanopt (gcc::context *ctxt);
 471 extern gimple_opt_pass *make_pass_oacc_kernels (gcc::context *ctxt);
 472 extern simple_ipa_opt_pass *make_pass_ipa_oacc (gcc::context *ctxt);
 473 extern simple_ipa_opt_pass *make_pass_ipa_oacc_kernels (gcc::context *ctxt);
 474 extern gimple_opt_pass *make_pass_gen_hsail (gcc::context *ctxt);
 475
 476 /* IPA Passes */
 477 extern simple_ipa_opt_pass *make_pass_ipa_lower_emutls (gcc::context *ctxt);
 478 extern simple_ipa_opt_pass
 479                                                               *make_pass_ipa_function_and_variable_visibility (gcc::context *ctxt);
 480 extern simple_ipa_opt_pass *make_pass_ipa_tree_profile (gcc::context *ctxt);
 481 extern simple_ipa_opt_pass *make_pass_ipa_auto_profile (gcc::context *ctxt);
 482
 483 extern simple_ipa_opt_pass *make_pass_build_ssa_passes (gcc::context *ctxt);
 484 extern simple_ipa_opt_pass *make_pass_chkp_instrumentation_passes (gcc::context *ctxt);
 485 extern simple_ipa_opt_pass *make_pass_local_optimization_passes (gcc::context *ctxt);
 486
 487 extern ipa_opt_pass_d *make_pass_ipa_whole_program_visibility (gcc::context
 488                                                                *ctxt);
 489 extern simple_ipa_opt_pass *make_pass_ipa_increase_alignment (gcc::context
 490                                                               *ctxt);
 491 extern ipa_opt_pass_d *make_pass_ipa_inline (gcc::context *ctxt);
 492 extern simple_ipa_opt_pass *make_pass_ipa_free_lang_data (gcc::context *ctxt);
 493 extern simple_ipa_opt_pass *make_pass_ipa_free_inline_summary (gcc::context
 494                                                                *ctxt);
 495 extern ipa_opt_pass_d *make_pass_ipa_cp (gcc::context *ctxt);
 496 extern ipa_opt_pass_d *make_pass_ipa_icf (gcc::context *ctxt);
 497 extern ipa_opt_pass_d *make_pass_ipa_devirt (gcc::context *ctxt);
 498 extern ipa_opt_pass_d *make_pass_ipa_reference (gcc::context *ctxt);
 499 extern ipa_opt_pass_d *make_pass_ipa_hsa (gcc::context *ctxt);
 500 extern ipa_opt_pass_d *make_pass_ipa_pure_const (gcc::context *ctxt);
 501 extern simple_ipa_opt_pass *make_pass_ipa_pta (gcc::context *ctxt);
 502 extern simple_ipa_opt_pass *make_pass_ipa_tm (gcc::context *ctxt);
 503 extern simple_ipa_opt_pass *make_pass_target_clone (gcc::context *ctxt);
 504 extern simple_ipa_opt_pass *make_pass_dispatcher_calls (gcc::context *ctxt);
 505 extern simple_ipa_opt_pass *make_pass_omp_simd_clone (gcc::context *ctxt);
 506 extern ipa_opt_pass_d *make_pass_ipa_profile (gcc::context *ctxt);
 507 extern ipa_opt_pass_d *make_pass_ipa_cdtor_merge (gcc::context *ctxt);
 508 extern ipa_opt_pass_d *make_pass_ipa_single_use (gcc::context *ctxt);
 509 extern ipa_opt_pass_d *make_pass_ipa_comdats (gcc::context *ctxt);
 510
 511 extern gimple_opt_pass *make_pass_cleanup_cfg_post_optimizing (gcc::context
 512                                                                *ctxt);
 513 extern gimple_opt_pass *make_pass_init_datastructures (gcc::context *ctxt);
 514 extern gimple_opt_pass *make_pass_fixup_cfg (gcc::context *ctxt);
 515 extern gimple_opt_pass *make_pass_backprop (gcc::context *ctxt);
 516
 517 extern rtl_opt_pass *make_pass_expand (gcc::context *ctxt);
 518 extern rtl_opt_pass *make_pass_instantiate_virtual_regs (gcc::context *ctxt);
 519 extern rtl_opt_pass *make_pass_rtl_fwprop (gcc::context *ctxt);
 520 extern rtl_opt_pass *make_pass_rtl_fwprop_addr (gcc::context *ctxt);
 521 extern rtl_opt_pass *make_pass_jump (gcc::context *ctxt);
 522 extern rtl_opt_pass *make_pass_jump2 (gcc::context *ctxt);
 523 extern rtl_opt_pass *make_pass_lower_subreg (gcc::context *ctxt);
 524 extern rtl_opt_pass *make_pass_cse (gcc::context *ctxt);
 525 extern rtl_opt_pass *make_pass_fast_rtl_dce (gcc::context *ctxt);
 526 extern rtl_opt_pass *make_pass_ud_rtl_dce (gcc::context *ctxt);
 527 extern rtl_opt_pass *make_pass_rtl_dce (gcc::context *ctxt);
 528 extern rtl_opt_pass *make_pass_rtl_dse1 (gcc::context *ctxt);
 529 extern rtl_opt_pass *make_pass_rtl_dse2 (gcc::context *ctxt);
 530 extern rtl_opt_pass *make_pass_rtl_dse3 (gcc::context *ctxt);
 531 extern rtl_opt_pass *make_pass_rtl_cprop (gcc::context *ctxt);
 532 extern rtl_opt_pass *make_pass_rtl_pre (gcc::context *ctxt);
 533 extern rtl_opt_pass *make_pass_rtl_hoist (gcc::context *ctxt);
 534 extern rtl_opt_pass *make_pass_rtl_store_motion (gcc::context *ctxt);
 535 extern rtl_opt_pass *make_pass_cse_after_global_opts (gcc::context *ctxt);
 536 extern rtl_opt_pass *make_pass_rtl_ifcvt (gcc::context *ctxt);
 537
 538 extern rtl_opt_pass *make_pass_into_cfg_layout_mode (gcc::context *ctxt);
 539 extern rtl_opt_pass *make_pass_outof_cfg_layout_mode (gcc::context *ctxt);
 540
 541 extern rtl_opt_pass *make_pass_loop2 (gcc::context *ctxt);
 542 extern rtl_opt_pass *make_pass_rtl_loop_init (gcc::context *ctxt);
 543 extern rtl_opt_pass *make_pass_rtl_move_loop_invariants (gcc::context *ctxt);
 544 extern rtl_opt_pass *make_pass_rtl_unroll_loops (gcc::context *ctxt);
 545 extern rtl_opt_pass *make_pass_rtl_doloop (gcc::context *ctxt);
 546 extern rtl_opt_pass *make_pass_rtl_loop_done (gcc::context *ctxt);
 547
 548 extern rtl_opt_pass *make_pass_web (gcc::context *ctxt);
 549 extern rtl_opt_pass *make_pass_cse2 (gcc::context *ctxt);
 550 extern rtl_opt_pass *make_pass_df_initialize_opt (gcc::context *ctxt);
 551 extern rtl_opt_pass *make_pass_df_initialize_no_opt (gcc::context *ctxt);
 552 extern rtl_opt_pass *make_pass_reginfo_init (gcc::context *ctxt);
 553 extern rtl_opt_pass *make_pass_inc_dec (gcc::context *ctxt);
 554 extern rtl_opt_pass *make_pass_stack_ptr_mod (gcc::context *ctxt);
 555 extern rtl_opt_pass *make_pass_initialize_regs (gcc::context *ctxt);
 556 extern rtl_opt_pass *make_pass_combine (gcc::context *ctxt);
 557 extern rtl_opt_pass *make_pass_if_after_combine (gcc::context *ctxt);
 558 extern rtl_opt_pass *make_pass_ree (gcc::context *ctxt);
 559 extern rtl_opt_pass *make_pass_partition_blocks (gcc::context *ctxt);
 560 extern rtl_opt_pass *make_pass_match_asm_constraints (gcc::context *ctxt);
 561 extern rtl_opt_pass *make_pass_split_all_insns (gcc::context *ctxt);
 562 extern rtl_opt_pass *make_pass_fast_rtl_byte_dce (gcc::context *ctxt);
 563 extern rtl_opt_pass *make_pass_lower_subreg2 (gcc::context *ctxt);
 564 extern rtl_opt_pass *make_pass_mode_switching (gcc::context *ctxt);
 565 extern rtl_opt_pass *make_pass_sms (gcc::context *ctxt);
 566 extern rtl_opt_pass *make_pass_sched (gcc::context *ctxt);
 567 extern rtl_opt_pass *make_pass_live_range_shrinkage (gcc::context *ctxt);
 568 extern rtl_opt_pass *make_pass_ira (gcc::context *ctxt);
 569 extern rtl_opt_pass *make_pass_reload (gcc::context *ctxt);
 570 extern rtl_opt_pass *make_pass_clean_state (gcc::context *ctxt);
 571 extern rtl_opt_pass *make_pass_branch_prob (gcc::context *ctxt);
 572 extern rtl_opt_pass *make_pass_value_profile_transformations (gcc::context
 573                                                               *ctxt);
 574 extern rtl_opt_pass *make_pass_postreload_cse (gcc::context *ctxt);
 575 extern rtl_opt_pass *make_pass_gcse2 (gcc::context *ctxt);
 576 extern rtl_opt_pass *make_pass_split_after_reload (gcc::context *ctxt);
 577 extern rtl_opt_pass *make_pass_branch_target_load_optimize1 (gcc::context
 578                                                              *ctxt);
 579 extern rtl_opt_pass *make_pass_thread_prologue_and_epilogue (gcc::context
 580                                                              *ctxt);
 581 extern rtl_opt_pass *make_pass_stack_adjustments (gcc::context *ctxt);
 582 extern rtl_opt_pass *make_pass_sched_fusion (gcc::context *ctxt);
 583 extern rtl_opt_pass *make_pass_peephole2 (gcc::context *ctxt);
 584 extern rtl_opt_pass *make_pass_if_after_reload (gcc::context *ctxt);
 585 extern rtl_opt_pass *make_pass_regrename (gcc::context *ctxt);
 586 extern rtl_opt_pass *make_pass_cprop_hardreg (gcc::context *ctxt);
 587 extern rtl_opt_pass *make_pass_reorder_blocks (gcc::context *ctxt);
 588 extern rtl_opt_pass *make_pass_branch_target_load_optimize2 (gcc::context
 589                                                              *ctxt);
 590 extern rtl_opt_pass *make_pass_leaf_regs (gcc::context *ctxt);
 591 extern rtl_opt_pass *make_pass_split_before_sched2 (gcc::context *ctxt);
 592 extern rtl_opt_pass *make_pass_compare_elim_after_reload (gcc::context *ctxt);
 593 extern rtl_opt_pass *make_pass_sched2 (gcc::context *ctxt);
 594 extern rtl_opt_pass *make_pass_stack_regs (gcc::context *ctxt);
 595 extern rtl_opt_pass *make_pass_stack_regs_run (gcc::context *ctxt);
 596 extern rtl_opt_pass *make_pass_df_finish (gcc::context *ctxt);
 597 extern rtl_opt_pass *make_pass_compute_alignments (gcc::context *ctxt);
 598 extern rtl_opt_pass *make_pass_duplicate_computed_gotos (gcc::context *ctxt);
 599 extern rtl_opt_pass *make_pass_variable_tracking (gcc::context *ctxt);
 600 extern rtl_opt_pass *make_pass_free_cfg (gcc::context *ctxt);
 601 extern rtl_opt_pass *make_pass_machine_reorg (gcc::context *ctxt);
 602 extern rtl_opt_pass *make_pass_cleanup_barriers (gcc::context *ctxt);
 603 extern rtl_opt_pass *make_pass_delay_slots (gcc::context *ctxt);
 604 extern rtl_opt_pass *make_pass_split_for_shorten_branches (gcc::context *ctxt);
 605 extern rtl_opt_pass *make_pass_split_before_regstack (gcc::context *ctxt);
 606 extern rtl_opt_pass *make_pass_convert_to_eh_region_ranges (gcc::context *ctxt);
 607 extern rtl_opt_pass *make_pass_shorten_branches (gcc::context *ctxt);
 608 extern rtl_opt_pass *make_pass_set_nothrow_function_flags (gcc::context *ctxt);
 609 extern rtl_opt_pass *make_pass_dwarf2_frame (gcc::context *ctxt);
 610 extern rtl_opt_pass *make_pass_final (gcc::context *ctxt);
 611 extern rtl_opt_pass *make_pass_rtl_seqabstr (gcc::context *ctxt);
 612 extern gimple_opt_pass *make_pass_release_ssa_names (gcc::context *ctxt);
 613 extern gimple_opt_pass *make_pass_early_inline (gcc::context *ctxt);
 614 extern gimple_opt_pass *make_pass_inline_parameters (gcc::context *ctxt);
 615 extern gimple_opt_pass *make_pass_update_address_taken (gcc::context *ctxt);
 616 extern gimple_opt_pass *make_pass_convert_switch (gcc::context *ctxt);
 617 extern gimple_opt_pass *make_pass_lower_vaarg (gcc::context *ctxt);
 618
 619 /* Current optimization pass.  */
 620 extern opt_pass *current_pass;
 621
 622 extern bool execute_one_pass (opt_pass *);
 623 extern void execute_pass_list (function *, opt_pass *);
 624 extern void execute_ipa_pass_list (opt_pass *);
 625 extern void execute_ipa_summary_passes (ipa_opt_pass_d *);
 626 extern void execute_all_ipa_transforms (void);
 627 extern void execute_all_ipa_stmt_fixups (struct cgraph_node *, gimple **);
 628 extern bool pass_init_dump_file (opt_pass *);
 629 extern void pass_fini_dump_file (opt_pass *);
 630
 631 extern void print_current_pass (FILE *);
 632 extern void debug_pass (void);
 633 extern void ipa_write_summaries (void);
 634 extern void ipa_write_optimization_summaries (struct lto_symtab_encoder_d *);
 635 extern void ipa_read_summaries (void);
 636 extern void ipa_read_optimization_summaries (void);
 637 extern void register_one_dump_file (opt_pass *);
 638 extern bool function_called_by_processed_nodes_p (void);
 639
 640 /* Declare for plugins.  */
 641 extern void do_per_function_toporder (void (*) (function *, void *), void *);
 642
 643 extern void disable_pass (const char *);
 644 extern void enable_pass (const char *);
 645 extern void dump_passes (void);
 646
 647 #endif /* GCC_TREE_PASS_H */