gcc/passes.def

   1 /* Description of pass structure
   2    Copyright (C) 1987-2018 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 /*
  21  Macros that should be defined when using this file:
  22    INSERT_PASSES_AFTER (PASS)
  23    PUSH_INSERT_PASSES_WITHIN (PASS)
  24    POP_INSERT_PASSES ()
  25    NEXT_PASS (PASS)
  26    TERMINATE_PASS_LIST (PASS)
  27  */
  28
  29  /* All passes needed to lower the function into shape optimizers can
  30     operate on.  These passes are always run first on the function, but
  31     backend might produce already lowered functions that are not processed
  32     by these passes.  */
  33   INSERT_PASSES_AFTER (all_lowering_passes)
  34   NEXT_PASS (pass_warn_unused_result);
  35   NEXT_PASS (pass_diagnose_omp_blocks);
  36   NEXT_PASS (pass_diagnose_tm_blocks);
  37   NEXT_PASS (pass_lower_omp);
  38   NEXT_PASS (pass_lower_cf);
  39   NEXT_PASS (pass_lower_tm);
  40   NEXT_PASS (pass_refactor_eh);
  41   NEXT_PASS (pass_lower_eh);
  42   NEXT_PASS (pass_build_cfg);
  43   NEXT_PASS (pass_warn_function_return);
  44   NEXT_PASS (pass_expand_omp);
  45   NEXT_PASS (pass_sprintf_length, false);
  46   NEXT_PASS (pass_walloca, /*strict_mode_p=*/true);
  47   NEXT_PASS (pass_build_cgraph_edges);
  48   TERMINATE_PASS_LIST (all_lowering_passes)
  49
  50   /* Interprocedural optimization passes.  */
  51   INSERT_PASSES_AFTER (all_small_ipa_passes)
  52   NEXT_PASS (pass_ipa_free_lang_data);
  53   NEXT_PASS (pass_ipa_function_and_variable_visibility);
  54   NEXT_PASS (pass_build_ssa_passes);
  55   PUSH_INSERT_PASSES_WITHIN (pass_build_ssa_passes)
  56       NEXT_PASS (pass_fixup_cfg);
  57       NEXT_PASS (pass_build_ssa);
  58       NEXT_PASS (pass_warn_nonnull_compare);
  59       NEXT_PASS (pass_ubsan);
  60       NEXT_PASS (pass_early_warn_uninitialized);
  61       NEXT_PASS (pass_nothrow);
  62       NEXT_PASS (pass_rebuild_cgraph_edges);
  63   POP_INSERT_PASSES ()
  64
  65   NEXT_PASS (pass_local_optimization_passes);
  66   PUSH_INSERT_PASSES_WITHIN (pass_local_optimization_passes)
  67       NEXT_PASS (pass_fixup_cfg);
  68       NEXT_PASS (pass_rebuild_cgraph_edges);
  69       NEXT_PASS (pass_local_fn_summary);
  70       NEXT_PASS (pass_early_inline);
  71       NEXT_PASS (pass_all_early_optimizations);
  72       PUSH_INSERT_PASSES_WITHIN (pass_all_early_optimizations)
  73           NEXT_PASS (pass_remove_cgraph_callee_edges);
  74           NEXT_PASS (pass_object_sizes, true /* insert_min_max_p */);
  75           /* Don't record nonzero bits before IPA to avoid
  76              using too much memory.  */
  77           NEXT_PASS (pass_ccp, false /* nonzero_p */);
  78           /* After CCP we rewrite no longer addressed locals into SSA
  79              form if possible.  */
  80           NEXT_PASS (pass_forwprop);
  81           NEXT_PASS (pass_early_thread_jumps);
  82           NEXT_PASS (pass_sra_early);
  83           /* pass_build_ealias is a dummy pass that ensures that we
  84              execute TODO_rebuild_alias at this point.  */
  85           NEXT_PASS (pass_build_ealias);
  86           NEXT_PASS (pass_fre);
  87           NEXT_PASS (pass_early_vrp);
  88           NEXT_PASS (pass_merge_phi);
  89           NEXT_PASS (pass_dse);
  90           NEXT_PASS (pass_cd_dce);
  91           NEXT_PASS (pass_early_ipa_sra);
  92           NEXT_PASS (pass_tail_recursion);
  93           NEXT_PASS (pass_convert_switch);
  94           NEXT_PASS (pass_cleanup_eh);
  95           NEXT_PASS (pass_profile);
  96           NEXT_PASS (pass_local_pure_const);
  97           /* Split functions creates parts that are not run through
  98              early optimizations again.  It is thus good idea to do this
  99               late.  */
 100           NEXT_PASS (pass_split_functions);
 101           NEXT_PASS (pass_strip_predict_hints, true /* early_p */);
 102       POP_INSERT_PASSES ()
 103       NEXT_PASS (pass_release_ssa_names);
 104       NEXT_PASS (pass_rebuild_cgraph_edges);
 105       NEXT_PASS (pass_local_fn_summary);
 106   POP_INSERT_PASSES ()
 107
 108   NEXT_PASS (pass_ipa_oacc);
 109   PUSH_INSERT_PASSES_WITHIN (pass_ipa_oacc)
 110       NEXT_PASS (pass_ipa_pta);
 111       /* Pass group that runs when the function is an offloaded function
 112          containing oacc kernels loops.  */
 113       NEXT_PASS (pass_ipa_oacc_kernels);
 114       PUSH_INSERT_PASSES_WITHIN (pass_ipa_oacc_kernels)
 115           NEXT_PASS (pass_oacc_kernels);
 116           PUSH_INSERT_PASSES_WITHIN (pass_oacc_kernels)
 117               NEXT_PASS (pass_ch);
 118               NEXT_PASS (pass_fre);
 119               /* We use pass_lim to rewrite in-memory iteration and reduction
 120                  variable accesses in loops into local variables accesses.  */
 121               NEXT_PASS (pass_lim);
 122               NEXT_PASS (pass_dominator, false /* may_peel_loop_headers_p */);
 123               NEXT_PASS (pass_dce);
 124               NEXT_PASS (pass_parallelize_loops, true /* oacc_kernels_p */);
 125               NEXT_PASS (pass_expand_omp_ssa);
 126               NEXT_PASS (pass_rebuild_cgraph_edges);
 127           POP_INSERT_PASSES ()
 128       POP_INSERT_PASSES ()
 129   POP_INSERT_PASSES ()
 130
 131   NEXT_PASS (pass_target_clone);
 132   NEXT_PASS (pass_ipa_auto_profile);
 133   NEXT_PASS (pass_ipa_tree_profile);
 134   PUSH_INSERT_PASSES_WITHIN (pass_ipa_tree_profile)
 135       NEXT_PASS (pass_feedback_split_functions);
 136   POP_INSERT_PASSES ()
 137   NEXT_PASS (pass_ipa_free_fn_summary, true /* small_p */);
 138   NEXT_PASS (pass_ipa_increase_alignment);
 139   NEXT_PASS (pass_ipa_tm);
 140   NEXT_PASS (pass_ipa_lower_emutls);
 141   TERMINATE_PASS_LIST (all_small_ipa_passes)
 142
 143   INSERT_PASSES_AFTER (all_regular_ipa_passes)
 144   NEXT_PASS (pass_ipa_whole_program_visibility);
 145   NEXT_PASS (pass_ipa_profile);
 146   NEXT_PASS (pass_ipa_icf);
 147   NEXT_PASS (pass_ipa_devirt);
 148   NEXT_PASS (pass_ipa_cp);
 149   NEXT_PASS (pass_ipa_cdtor_merge);
 150   NEXT_PASS (pass_ipa_hsa);
 151   NEXT_PASS (pass_ipa_fn_summary);
 152   NEXT_PASS (pass_ipa_inline);
 153   NEXT_PASS (pass_ipa_pure_const);
 154   NEXT_PASS (pass_ipa_free_fn_summary, false /* small_p */);
 155   NEXT_PASS (pass_ipa_reference);
 156   /* This pass needs to be scheduled after any IP code duplication.   */
 157   NEXT_PASS (pass_ipa_single_use);
 158   /* Comdat privatization come last, as direct references to comdat local
 159      symbols are not allowed outside of the comdat group.  Privatizing early
 160      would result in missed optimizations due to this restriction.  */
 161   NEXT_PASS (pass_ipa_comdats);
 162   TERMINATE_PASS_LIST (all_regular_ipa_passes)
 163
 164   /* Simple IPA passes executed after the regular passes.  In WHOPR mode the
 165      passes are executed after partitioning and thus see just parts of the
 166      compiled unit.  */
 167   INSERT_PASSES_AFTER (all_late_ipa_passes)
 168   NEXT_PASS (pass_materialize_all_clones);
 169   NEXT_PASS (pass_ipa_pta);
 170   NEXT_PASS (pass_omp_simd_clone);
 171   TERMINATE_PASS_LIST (all_late_ipa_passes)
 172
 173   /* These passes are run after IPA passes on every function that is being
 174      output to the assembler file.  */
 175   INSERT_PASSES_AFTER (all_passes)
 176   NEXT_PASS (pass_fixup_cfg);
 177   NEXT_PASS (pass_lower_eh_dispatch);
 178   NEXT_PASS (pass_oacc_device_lower);
 179   NEXT_PASS (pass_omp_device_lower);
 180   NEXT_PASS (pass_omp_target_link);
 181   NEXT_PASS (pass_all_optimizations);
 182   PUSH_INSERT_PASSES_WITHIN (pass_all_optimizations)
 183       NEXT_PASS (pass_remove_cgraph_callee_edges);
 184       /* Initial scalar cleanups before alias computation.
 185          They ensure memory accesses are not indirect wherever possible.  */
 186       NEXT_PASS (pass_strip_predict_hints, false /* early_p */);
 187       NEXT_PASS (pass_ccp, true /* nonzero_p */);
 188       NEXT_PASS (pass_post_ipa_warn);
 189       /* After CCP we rewrite no longer addressed locals into SSA
 190          form if possible.  */
 191       NEXT_PASS (pass_complete_unrolli);
 192       NEXT_PASS (pass_backprop);
 193       NEXT_PASS (pass_phiprop);
 194       NEXT_PASS (pass_forwprop);
 195       NEXT_PASS (pass_object_sizes, false /* insert_min_max_p */);
 196       /* pass_build_alias is a dummy pass that ensures that we
 197          execute TODO_rebuild_alias at this point.  */
 198       NEXT_PASS (pass_build_alias);
 199       NEXT_PASS (pass_return_slot);
 200       NEXT_PASS (pass_fre);
 201       NEXT_PASS (pass_merge_phi);
 202       NEXT_PASS (pass_thread_jumps);
 203       NEXT_PASS (pass_vrp, true /* warn_array_bounds_p */);
 204       NEXT_PASS (pass_dce);
 205       NEXT_PASS (pass_stdarg);
 206       NEXT_PASS (pass_call_cdce);
 207       NEXT_PASS (pass_cselim);
 208       NEXT_PASS (pass_copy_prop);
 209       NEXT_PASS (pass_tree_ifcombine);
 210       NEXT_PASS (pass_merge_phi);
 211       NEXT_PASS (pass_phiopt);
 212       NEXT_PASS (pass_tail_recursion);
 213       NEXT_PASS (pass_ch);
 214       NEXT_PASS (pass_lower_complex);
 215       NEXT_PASS (pass_sra);
 216       /* The dom pass will also resolve all __builtin_constant_p calls
 217          that are still there to 0.  This has to be done after some
 218          propagations have already run, but before some more dead code
 219          is removed, and this place fits nicely.  Remember this when
 220          trying to move or duplicate pass_dominator somewhere earlier.  */
 221       NEXT_PASS (pass_thread_jumps);
 222       NEXT_PASS (pass_dominator, true /* may_peel_loop_headers_p */);
 223       /* At this point the majority of const/copy propagations
 224          are exposed.  Go ahead and identify paths that should never
 225          be executed in a conforming program and isolate those paths.
 226
 227          This will expose more degenerate PHIs in the main path and
 228          expose more PRE/DOM optimization opportunities.  */
 229       NEXT_PASS (pass_isolate_erroneous_paths);
 230       /* The only const/copy propagation opportunities left after
 231          DOM and erroneous path isolation should be due to degenerate PHI nodes.
 232          So rather than run the full propagators, run a specialized pass which
 233          only examines PHIs to discover const/copy propagation
 234          opportunities.  */
 235       NEXT_PASS (pass_phi_only_cprop);
 236       NEXT_PASS (pass_dse);
 237       NEXT_PASS (pass_reassoc, true /* insert_powi_p */);
 238       NEXT_PASS (pass_dce);
 239       NEXT_PASS (pass_forwprop);
 240       NEXT_PASS (pass_phiopt);
 241       NEXT_PASS (pass_ccp, true /* nonzero_p */);
 242       /* After CCP we rewrite no longer addressed locals into SSA
 243          form if possible.  */
 244       NEXT_PASS (pass_cse_sincos);
 245       NEXT_PASS (pass_optimize_bswap);
 246       NEXT_PASS (pass_laddress);
 247       NEXT_PASS (pass_lim);
 248       NEXT_PASS (pass_walloca, false);
 249       NEXT_PASS (pass_pre);
 250       NEXT_PASS (pass_sink_code);
 251       NEXT_PASS (pass_sancov);
 252       NEXT_PASS (pass_asan);
 253       NEXT_PASS (pass_tsan);
 254       NEXT_PASS (pass_dce);
 255       /* Pass group that runs when 1) enabled, 2) there are loops
 256          in the function.  Make sure to run pass_fix_loops before
 257          to discover/remove loops before running the gate function
 258          of pass_tree_loop.  */
 259       NEXT_PASS (pass_fix_loops);
 260       NEXT_PASS (pass_tree_loop);
 261       PUSH_INSERT_PASSES_WITHIN (pass_tree_loop)
 262           NEXT_PASS (pass_tree_loop_init);
 263           NEXT_PASS (pass_tree_unswitch);
 264           NEXT_PASS (pass_scev_cprop);
 265           NEXT_PASS (pass_loop_split);
 266           NEXT_PASS (pass_loop_jam);
 267           /* All unswitching, final value replacement and splitting can expose
 268              empty loops.  Remove them now.  */
 269           NEXT_PASS (pass_cd_dce);
 270           NEXT_PASS (pass_iv_canon);
 271           NEXT_PASS (pass_loop_distribution);
 272           NEXT_PASS (pass_linterchange);
 273           NEXT_PASS (pass_copy_prop);
 274           NEXT_PASS (pass_graphite);
 275           PUSH_INSERT_PASSES_WITHIN (pass_graphite)
 276               NEXT_PASS (pass_graphite_transforms);
 277               NEXT_PASS (pass_lim);
 278               NEXT_PASS (pass_copy_prop);
 279               NEXT_PASS (pass_dce);
 280           POP_INSERT_PASSES ()
 281           NEXT_PASS (pass_parallelize_loops, false /* oacc_kernels_p */);
 282           NEXT_PASS (pass_expand_omp_ssa);
 283           NEXT_PASS (pass_ch_vect);
 284           NEXT_PASS (pass_if_conversion);
 285           /* pass_vectorize must immediately follow pass_if_conversion.
 286              Please do not add any other passes in between.  */
 287           NEXT_PASS (pass_vectorize);
 288           PUSH_INSERT_PASSES_WITHIN (pass_vectorize)
 289               NEXT_PASS (pass_dce);
 290           POP_INSERT_PASSES ()
 291           NEXT_PASS (pass_predcom);
 292           NEXT_PASS (pass_complete_unroll);
 293           NEXT_PASS (pass_slp_vectorize);
 294           NEXT_PASS (pass_loop_prefetch);
 295           /* Run IVOPTs after the last pass that uses data-reference analysis
 296              as that doesn't handle TARGET_MEM_REFs.  */
 297           NEXT_PASS (pass_iv_optimize);
 298           NEXT_PASS (pass_lim);
 299           NEXT_PASS (pass_tree_loop_done);
 300       POP_INSERT_PASSES ()
 301       /* Pass group that runs when pass_tree_loop is disabled or there
 302          are no loops in the function.  */
 303       NEXT_PASS (pass_tree_no_loop);
 304       PUSH_INSERT_PASSES_WITHIN (pass_tree_no_loop)
 305           NEXT_PASS (pass_slp_vectorize);
 306       POP_INSERT_PASSES ()
 307       NEXT_PASS (pass_simduid_cleanup);
 308       NEXT_PASS (pass_lower_vector_ssa);
 309       NEXT_PASS (pass_lower_switch);
 310       NEXT_PASS (pass_cse_reciprocals);
 311       NEXT_PASS (pass_sprintf_length, true);
 312       NEXT_PASS (pass_reassoc, false /* insert_powi_p */);
 313       NEXT_PASS (pass_strength_reduction);
 314       NEXT_PASS (pass_split_paths);
 315       NEXT_PASS (pass_tracer);
 316       NEXT_PASS (pass_thread_jumps);
 317       NEXT_PASS (pass_dominator, false /* may_peel_loop_headers_p */);
 318       NEXT_PASS (pass_strlen);
 319       NEXT_PASS (pass_thread_jumps);
 320       NEXT_PASS (pass_vrp, false /* warn_array_bounds_p */);
 321       /* The only const/copy propagation opportunities left after
 322          DOM and VRP should be due to degenerate PHI nodes.  So rather than
 323          run the full propagators, run a specialized pass which
 324          only examines PHIs to discover const/copy propagation
 325          opportunities.  */
 326       NEXT_PASS (pass_warn_restrict);
 327       NEXT_PASS (pass_phi_only_cprop);
 328       NEXT_PASS (pass_dse);
 329       NEXT_PASS (pass_cd_dce);
 330       NEXT_PASS (pass_forwprop);
 331       NEXT_PASS (pass_phiopt);
 332       NEXT_PASS (pass_fold_builtins);
 333       NEXT_PASS (pass_optimize_widening_mul);
 334       NEXT_PASS (pass_store_merging);
 335       NEXT_PASS (pass_tail_calls);
 336       /* If DCE is not run before checking for uninitialized uses,
 337          we may get false warnings (e.g., testsuite/gcc.dg/uninit-5.c).
 338          However, this also causes us to misdiagnose cases that should be
 339          real warnings (e.g., testsuite/gcc.dg/pr18501.c).  */
 340       NEXT_PASS (pass_dce);
 341       /* Split critical edges before late uninit warning to reduce the
 342          number of false positives from it.  */
 343       NEXT_PASS (pass_split_crit_edges);
 344       NEXT_PASS (pass_late_warn_uninitialized);
 345       NEXT_PASS (pass_uncprop);
 346       NEXT_PASS (pass_local_pure_const);
 347   POP_INSERT_PASSES ()
 348   NEXT_PASS (pass_all_optimizations_g);
 349   PUSH_INSERT_PASSES_WITHIN (pass_all_optimizations_g)
 350       NEXT_PASS (pass_remove_cgraph_callee_edges);
 351       NEXT_PASS (pass_strip_predict_hints, false /* early_p */);
 352       /* Lower remaining pieces of GIMPLE.  */
 353       NEXT_PASS (pass_lower_complex);
 354       NEXT_PASS (pass_lower_vector_ssa);
 355       NEXT_PASS (pass_lower_switch);
 356       /* Perform simple scalar cleanup which is constant/copy propagation.  */
 357       NEXT_PASS (pass_ccp, true /* nonzero_p */);
 358       NEXT_PASS (pass_post_ipa_warn);
 359       NEXT_PASS (pass_object_sizes);
 360       /* Fold remaining builtins.  */
 361       NEXT_PASS (pass_fold_builtins);
 362       NEXT_PASS (pass_sprintf_length, true);
 363       /* Copy propagation also copy-propagates constants, this is necessary
 364          to forward object-size and builtin folding results properly.  */
 365       NEXT_PASS (pass_copy_prop);
 366       NEXT_PASS (pass_dce);
 367       NEXT_PASS (pass_sancov);
 368       NEXT_PASS (pass_asan);
 369       NEXT_PASS (pass_tsan);
 370       /* ???  We do want some kind of loop invariant motion, but we possibly
 371          need to adjust LIM to be more friendly towards preserving accurate
 372          debug information here.  */
 373       /* Split critical edges before late uninit warning to reduce the
 374          number of false positives from it.  */
 375       NEXT_PASS (pass_split_crit_edges);
 376       NEXT_PASS (pass_late_warn_uninitialized);
 377       NEXT_PASS (pass_uncprop);
 378       NEXT_PASS (pass_local_pure_const);
 379   POP_INSERT_PASSES ()
 380   NEXT_PASS (pass_tm_init);
 381   PUSH_INSERT_PASSES_WITHIN (pass_tm_init)
 382       NEXT_PASS (pass_tm_mark);
 383       NEXT_PASS (pass_tm_memopt);
 384       NEXT_PASS (pass_tm_edges);
 385   POP_INSERT_PASSES ()
 386   NEXT_PASS (pass_simduid_cleanup);
 387   NEXT_PASS (pass_vtable_verify);
 388   NEXT_PASS (pass_lower_vaarg);
 389   NEXT_PASS (pass_lower_vector);
 390   NEXT_PASS (pass_lower_complex_O0);
 391   NEXT_PASS (pass_sancov_O0);
 392   NEXT_PASS (pass_lower_switch_O0);
 393   NEXT_PASS (pass_asan_O0);
 394   NEXT_PASS (pass_tsan_O0);
 395   NEXT_PASS (pass_sanopt);
 396   NEXT_PASS (pass_cleanup_eh);
 397   NEXT_PASS (pass_lower_resx);
 398   NEXT_PASS (pass_nrv);
 399   NEXT_PASS (pass_cleanup_cfg_post_optimizing);
 400   NEXT_PASS (pass_warn_function_noreturn);
 401   NEXT_PASS (pass_gen_hsail);
 402
 403   NEXT_PASS (pass_expand);
 404
 405   NEXT_PASS (pass_rest_of_compilation);
 406   PUSH_INSERT_PASSES_WITHIN (pass_rest_of_compilation)
 407       NEXT_PASS (pass_instantiate_virtual_regs);
 408       NEXT_PASS (pass_into_cfg_layout_mode);
 409       NEXT_PASS (pass_jump);
 410       NEXT_PASS (pass_lower_subreg);
 411       NEXT_PASS (pass_df_initialize_opt);
 412       NEXT_PASS (pass_cse);
 413       NEXT_PASS (pass_rtl_fwprop);
 414       NEXT_PASS (pass_rtl_cprop);
 415       NEXT_PASS (pass_rtl_pre);
 416       NEXT_PASS (pass_rtl_hoist);
 417       NEXT_PASS (pass_rtl_cprop);
 418       NEXT_PASS (pass_rtl_store_motion);
 419       NEXT_PASS (pass_cse_after_global_opts);
 420       NEXT_PASS (pass_rtl_ifcvt);
 421       NEXT_PASS (pass_reginfo_init);
 422       /* Perform loop optimizations.  It might be better to do them a bit
 423          sooner, but we want the profile feedback to work more
 424          efficiently.  */
 425       NEXT_PASS (pass_loop2);
 426       PUSH_INSERT_PASSES_WITHIN (pass_loop2)
 427           NEXT_PASS (pass_rtl_loop_init);
 428           NEXT_PASS (pass_rtl_move_loop_invariants);
 429           NEXT_PASS (pass_rtl_unroll_loops);
 430           NEXT_PASS (pass_rtl_doloop);
 431           NEXT_PASS (pass_rtl_loop_done);
 432       POP_INSERT_PASSES ()
 433       NEXT_PASS (pass_web);
 434       NEXT_PASS (pass_rtl_cprop);
 435       NEXT_PASS (pass_cse2);
 436       NEXT_PASS (pass_rtl_dse1);
 437       NEXT_PASS (pass_rtl_fwprop_addr);
 438       NEXT_PASS (pass_inc_dec);
 439       NEXT_PASS (pass_initialize_regs);
 440       NEXT_PASS (pass_ud_rtl_dce);
 441       NEXT_PASS (pass_combine);
 442       NEXT_PASS (pass_if_after_combine);
 443       NEXT_PASS (pass_partition_blocks);
 444       NEXT_PASS (pass_outof_cfg_layout_mode);
 445       NEXT_PASS (pass_split_all_insns);
 446       NEXT_PASS (pass_lower_subreg2);
 447       NEXT_PASS (pass_df_initialize_no_opt);
 448       NEXT_PASS (pass_stack_ptr_mod);
 449       NEXT_PASS (pass_mode_switching);
 450       NEXT_PASS (pass_match_asm_constraints);
 451       NEXT_PASS (pass_sms);
 452       NEXT_PASS (pass_live_range_shrinkage);
 453       NEXT_PASS (pass_sched);
 454       NEXT_PASS (pass_early_remat);
 455       NEXT_PASS (pass_ira);
 456       NEXT_PASS (pass_reload);
 457       NEXT_PASS (pass_postreload);
 458       PUSH_INSERT_PASSES_WITHIN (pass_postreload)
 459           NEXT_PASS (pass_postreload_cse);
 460           NEXT_PASS (pass_gcse2);
 461           NEXT_PASS (pass_split_after_reload);
 462           NEXT_PASS (pass_ree);
 463           NEXT_PASS (pass_compare_elim_after_reload);
 464           NEXT_PASS (pass_branch_target_load_optimize1);
 465           NEXT_PASS (pass_thread_prologue_and_epilogue);
 466           NEXT_PASS (pass_rtl_dse2);
 467           NEXT_PASS (pass_stack_adjustments);
 468           NEXT_PASS (pass_jump2);
 469           NEXT_PASS (pass_duplicate_computed_gotos);
 470           NEXT_PASS (pass_sched_fusion);
 471           NEXT_PASS (pass_peephole2);
 472           NEXT_PASS (pass_if_after_reload);
 473           NEXT_PASS (pass_regrename);
 474           NEXT_PASS (pass_cprop_hardreg);
 475           NEXT_PASS (pass_fast_rtl_dce);
 476           NEXT_PASS (pass_reorder_blocks);
 477           NEXT_PASS (pass_branch_target_load_optimize2);
 478           NEXT_PASS (pass_leaf_regs);
 479           NEXT_PASS (pass_split_before_sched2);
 480           NEXT_PASS (pass_sched2);
 481           NEXT_PASS (pass_stack_regs);
 482           PUSH_INSERT_PASSES_WITHIN (pass_stack_regs)
 483               NEXT_PASS (pass_split_before_regstack);
 484               NEXT_PASS (pass_stack_regs_run);
 485           POP_INSERT_PASSES ()
 486       POP_INSERT_PASSES ()
 487       NEXT_PASS (pass_late_compilation);
 488       PUSH_INSERT_PASSES_WITHIN (pass_late_compilation)
 489           NEXT_PASS (pass_compute_alignments);
 490           NEXT_PASS (pass_variable_tracking);
 491           NEXT_PASS (pass_free_cfg);
 492           NEXT_PASS (pass_machine_reorg);
 493           NEXT_PASS (pass_cleanup_barriers);
 494           NEXT_PASS (pass_delay_slots);
 495           NEXT_PASS (pass_split_for_shorten_branches);
 496           NEXT_PASS (pass_convert_to_eh_region_ranges);
 497           NEXT_PASS (pass_shorten_branches);
 498           NEXT_PASS (pass_set_nothrow_function_flags);
 499           NEXT_PASS (pass_dwarf2_frame);
 500           NEXT_PASS (pass_final);
 501       POP_INSERT_PASSES ()
 502       NEXT_PASS (pass_df_finish);
 503   POP_INSERT_PASSES ()
 504   NEXT_PASS (pass_clean_state);
 505   TERMINATE_PASS_LIST (all_passes)