gcc/passes.def

   1 /* Description of pass structure
   2    Copyright (C) 1987-2021 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_omp_oacc_kernels_decompose);
  38   NEXT_PASS (pass_lower_omp);
  39   NEXT_PASS (pass_lower_cf);
  40   NEXT_PASS (pass_lower_tm);
  41   NEXT_PASS (pass_refactor_eh);
  42   NEXT_PASS (pass_lower_eh);
  43   NEXT_PASS (pass_coroutine_lower_builtins);
  44   NEXT_PASS (pass_build_cfg);
  45   NEXT_PASS (pass_warn_function_return);
  46   NEXT_PASS (pass_coroutine_early_expand_ifns);
  47   NEXT_PASS (pass_expand_omp);
  48   NEXT_PASS (pass_warn_printf);
  49   NEXT_PASS (pass_walloca, /*strict_mode_p=*/true);
  50   NEXT_PASS (pass_build_cgraph_edges);
  51   TERMINATE_PASS_LIST (all_lowering_passes)
  52
  53   /* Interprocedural optimization passes.  */
  54   INSERT_PASSES_AFTER (all_small_ipa_passes)
  55   NEXT_PASS (pass_ipa_free_lang_data);
  56   NEXT_PASS (pass_ipa_function_and_variable_visibility);
  57   NEXT_PASS (pass_build_ssa_passes);
  58   PUSH_INSERT_PASSES_WITHIN (pass_build_ssa_passes)
  59       NEXT_PASS (pass_fixup_cfg);
  60       NEXT_PASS (pass_build_ssa);
  61       NEXT_PASS (pass_warn_nonnull_compare);
  62       NEXT_PASS (pass_early_warn_uninitialized);
  63       NEXT_PASS (pass_ubsan);
  64       NEXT_PASS (pass_nothrow);
  65       NEXT_PASS (pass_rebuild_cgraph_edges);
  66   POP_INSERT_PASSES ()
  67
  68   NEXT_PASS (pass_local_optimization_passes);
  69   PUSH_INSERT_PASSES_WITHIN (pass_local_optimization_passes)
  70       NEXT_PASS (pass_fixup_cfg);
  71       NEXT_PASS (pass_rebuild_cgraph_edges);
  72       NEXT_PASS (pass_local_fn_summary);
  73       NEXT_PASS (pass_early_inline);
  74       NEXT_PASS (pass_all_early_optimizations);
  75       PUSH_INSERT_PASSES_WITHIN (pass_all_early_optimizations)
  76           NEXT_PASS (pass_remove_cgraph_callee_edges);
  77           NEXT_PASS (pass_object_sizes, true /* insert_min_max_p */);
  78           /* Don't record nonzero bits before IPA to avoid
  79              using too much memory.  */
  80           NEXT_PASS (pass_ccp, false /* nonzero_p */);
  81           /* After CCP we rewrite no longer addressed locals into SSA
  82              form if possible.  */
  83           NEXT_PASS (pass_forwprop);
  84           NEXT_PASS (pass_early_thread_jumps);
  85           NEXT_PASS (pass_sra_early);
  86           /* pass_build_ealias is a dummy pass that ensures that we
  87              execute TODO_rebuild_alias at this point.  */
  88           NEXT_PASS (pass_build_ealias);
  89           NEXT_PASS (pass_fre, true /* may_iterate */);
  90           NEXT_PASS (pass_early_vrp);
  91           NEXT_PASS (pass_merge_phi);
  92           NEXT_PASS (pass_dse);
  93           NEXT_PASS (pass_cd_dce, false /* update_address_taken_p */);
  94           NEXT_PASS (pass_phiopt, true /* early_p */);
  95           NEXT_PASS (pass_modref);
  96           NEXT_PASS (pass_tail_recursion);
  97           NEXT_PASS (pass_if_to_switch);
  98           NEXT_PASS (pass_convert_switch);
  99           NEXT_PASS (pass_cleanup_eh);
 100           NEXT_PASS (pass_profile);
 101           NEXT_PASS (pass_local_pure_const);
 102           /* Split functions creates parts that are not run through
 103              early optimizations again.  It is thus good idea to do this
 104               late.  */
 105           NEXT_PASS (pass_split_functions);
 106           NEXT_PASS (pass_strip_predict_hints, true /* early_p */);
 107       POP_INSERT_PASSES ()
 108       NEXT_PASS (pass_release_ssa_names);
 109       NEXT_PASS (pass_rebuild_cgraph_edges);
 110       NEXT_PASS (pass_local_fn_summary);
 111   POP_INSERT_PASSES ()
 112
 113   NEXT_PASS (pass_ipa_remove_symbols);
 114   NEXT_PASS (pass_ipa_oacc);
 115   PUSH_INSERT_PASSES_WITHIN (pass_ipa_oacc)
 116       NEXT_PASS (pass_ipa_pta);
 117       /* Pass group that runs when the function is an offloaded function
 118          containing oacc kernels loops.  */
 119       NEXT_PASS (pass_ipa_oacc_kernels);
 120       PUSH_INSERT_PASSES_WITHIN (pass_ipa_oacc_kernels)
 121           NEXT_PASS (pass_oacc_kernels);
 122           PUSH_INSERT_PASSES_WITHIN (pass_oacc_kernels)
 123               NEXT_PASS (pass_ch);
 124               NEXT_PASS (pass_fre, true /* may_iterate */);
 125               /* We use pass_lim to rewrite in-memory iteration and reduction
 126                  variable accesses in loops into local variables accesses.  */
 127               NEXT_PASS (pass_lim);
 128               NEXT_PASS (pass_dominator, false /* may_peel_loop_headers_p */);
 129               NEXT_PASS (pass_dce);
 130               NEXT_PASS (pass_parallelize_loops, true /* oacc_kernels_p */);
 131               NEXT_PASS (pass_expand_omp_ssa);
 132               NEXT_PASS (pass_rebuild_cgraph_edges);
 133           POP_INSERT_PASSES ()
 134       POP_INSERT_PASSES ()
 135   POP_INSERT_PASSES ()
 136
 137   NEXT_PASS (pass_target_clone);
 138   NEXT_PASS (pass_ipa_auto_profile);
 139   NEXT_PASS (pass_ipa_tree_profile);
 140   PUSH_INSERT_PASSES_WITHIN (pass_ipa_tree_profile)
 141       NEXT_PASS (pass_feedback_split_functions);
 142   POP_INSERT_PASSES ()
 143   NEXT_PASS (pass_ipa_free_fn_summary, true /* small_p */);
 144   NEXT_PASS (pass_ipa_increase_alignment);
 145   NEXT_PASS (pass_ipa_tm);
 146   NEXT_PASS (pass_ipa_lower_emutls);
 147   TERMINATE_PASS_LIST (all_small_ipa_passes)
 148
 149   INSERT_PASSES_AFTER (all_regular_ipa_passes)
 150   NEXT_PASS (pass_analyzer);
 151   NEXT_PASS (pass_ipa_odr);
 152   NEXT_PASS (pass_ipa_whole_program_visibility);
 153   NEXT_PASS (pass_ipa_profile);
 154   NEXT_PASS (pass_ipa_icf);
 155   NEXT_PASS (pass_ipa_devirt);
 156   NEXT_PASS (pass_ipa_cp);
 157   NEXT_PASS (pass_ipa_sra);
 158   NEXT_PASS (pass_ipa_cdtor_merge);
 159   NEXT_PASS (pass_ipa_fn_summary);
 160   NEXT_PASS (pass_ipa_inline);
 161   NEXT_PASS (pass_ipa_pure_const);
 162   NEXT_PASS (pass_ipa_modref);
 163   NEXT_PASS (pass_ipa_free_fn_summary, false /* small_p */);
 164   NEXT_PASS (pass_ipa_reference);
 165   /* This pass needs to be scheduled after any IP code duplication.   */
 166   NEXT_PASS (pass_ipa_single_use);
 167   /* Comdat privatization come last, as direct references to comdat local
 168      symbols are not allowed outside of the comdat group.  Privatizing early
 169      would result in missed optimizations due to this restriction.  */
 170   NEXT_PASS (pass_ipa_comdats);
 171   TERMINATE_PASS_LIST (all_regular_ipa_passes)
 172
 173   /* Simple IPA passes executed after the regular passes.  In WHOPR mode the
 174      passes are executed after partitioning and thus see just parts of the
 175      compiled unit.  */
 176   INSERT_PASSES_AFTER (all_late_ipa_passes)
 177   NEXT_PASS (pass_ipa_pta);
 178   NEXT_PASS (pass_omp_simd_clone);
 179   TERMINATE_PASS_LIST (all_late_ipa_passes)
 180
 181   /* These passes are run after IPA passes on every function that is being
 182      output to the assembler file.  */
 183   INSERT_PASSES_AFTER (all_passes)
 184   NEXT_PASS (pass_fixup_cfg);
 185   NEXT_PASS (pass_lower_eh_dispatch);
 186   NEXT_PASS (pass_oacc_device_lower);
 187   NEXT_PASS (pass_omp_device_lower);
 188   NEXT_PASS (pass_omp_target_link);
 189   NEXT_PASS (pass_adjust_alignment);
 190   NEXT_PASS (pass_all_optimizations);
 191   PUSH_INSERT_PASSES_WITHIN (pass_all_optimizations)
 192       NEXT_PASS (pass_remove_cgraph_callee_edges);
 193       /* Initial scalar cleanups before alias computation.
 194          They ensure memory accesses are not indirect wherever possible.  */
 195       NEXT_PASS (pass_strip_predict_hints, false /* early_p */);
 196       NEXT_PASS (pass_ccp, true /* nonzero_p */);
 197       NEXT_PASS (pass_post_ipa_warn);
 198       /* After CCP we rewrite no longer addressed locals into SSA
 199          form if possible.  */
 200       NEXT_PASS (pass_complete_unrolli);
 201       NEXT_PASS (pass_backprop);
 202       NEXT_PASS (pass_phiprop);
 203       NEXT_PASS (pass_forwprop);
 204       NEXT_PASS (pass_object_sizes, false /* insert_min_max_p */);
 205       /* pass_build_alias is a dummy pass that ensures that we
 206          execute TODO_rebuild_alias at this point.  */
 207       NEXT_PASS (pass_build_alias);
 208       NEXT_PASS (pass_return_slot);
 209       NEXT_PASS (pass_fre, true /* may_iterate */);
 210       NEXT_PASS (pass_merge_phi);
 211       NEXT_PASS (pass_thread_jumps);
 212       NEXT_PASS (pass_vrp, true /* warn_array_bounds_p */);
 213       NEXT_PASS (pass_dce);
 214       NEXT_PASS (pass_stdarg);
 215       NEXT_PASS (pass_call_cdce);
 216       NEXT_PASS (pass_cselim);
 217       NEXT_PASS (pass_copy_prop);
 218       NEXT_PASS (pass_tree_ifcombine);
 219       NEXT_PASS (pass_merge_phi);
 220       NEXT_PASS (pass_phiopt, false /* early_p */);
 221       NEXT_PASS (pass_tail_recursion);
 222       NEXT_PASS (pass_ch);
 223       NEXT_PASS (pass_lower_complex);
 224       NEXT_PASS (pass_sra);
 225       /* The dom pass will also resolve all __builtin_constant_p calls
 226          that are still there to 0.  This has to be done after some
 227          propagations have already run, but before some more dead code
 228          is removed, and this place fits nicely.  Remember this when
 229          trying to move or duplicate pass_dominator somewhere earlier.  */
 230       NEXT_PASS (pass_thread_jumps);
 231       NEXT_PASS (pass_dominator, true /* may_peel_loop_headers_p */);
 232       /* Threading can leave many const/copy propagations in the IL.
 233          Clean them up.  Failure to do so well can lead to false
 234          positives from warnings for erroneous code.  */
 235       NEXT_PASS (pass_copy_prop);
 236       /* Identify paths that should never be executed in a conforming
 237          program and isolate those paths.  */
 238       NEXT_PASS (pass_isolate_erroneous_paths);
 239       NEXT_PASS (pass_dse);
 240       NEXT_PASS (pass_reassoc, true /* insert_powi_p */);
 241       NEXT_PASS (pass_dce);
 242       NEXT_PASS (pass_forwprop);
 243       NEXT_PASS (pass_phiopt, false /* early_p */);
 244       NEXT_PASS (pass_ccp, true /* nonzero_p */);
 245       /* After CCP we rewrite no longer addressed locals into SSA
 246          form if possible.  */
 247       NEXT_PASS (pass_cse_sincos);
 248       NEXT_PASS (pass_optimize_bswap);
 249       NEXT_PASS (pass_laddress);
 250       NEXT_PASS (pass_lim);
 251       NEXT_PASS (pass_walloca, false);
 252       NEXT_PASS (pass_pre);
 253       NEXT_PASS (pass_sink_code);
 254       NEXT_PASS (pass_sancov);
 255       NEXT_PASS (pass_asan);
 256       NEXT_PASS (pass_tsan);
 257       NEXT_PASS (pass_dce);
 258       /* Pass group that runs when 1) enabled, 2) there are loops
 259          in the function.  Make sure to run pass_fix_loops before
 260          to discover/remove loops before running the gate function
 261          of pass_tree_loop.  */
 262       NEXT_PASS (pass_fix_loops);
 263       NEXT_PASS (pass_tree_loop);
 264       PUSH_INSERT_PASSES_WITHIN (pass_tree_loop)
 265           /* Before loop_init we rewrite no longer addressed locals into SSA
 266              form if possible.  */
 267           NEXT_PASS (pass_tree_loop_init);
 268           NEXT_PASS (pass_tree_unswitch);
 269           NEXT_PASS (pass_scev_cprop);
 270           NEXT_PASS (pass_loop_split);
 271           NEXT_PASS (pass_loop_versioning);
 272           NEXT_PASS (pass_loop_jam);
 273           /* All unswitching, final value replacement and splitting can expose
 274              empty loops.  Remove them now.  */
 275           NEXT_PASS (pass_cd_dce, false /* update_address_taken_p */);
 276           NEXT_PASS (pass_iv_canon);
 277           NEXT_PASS (pass_loop_distribution);
 278           NEXT_PASS (pass_linterchange);
 279           NEXT_PASS (pass_copy_prop);
 280           NEXT_PASS (pass_graphite);
 281           PUSH_INSERT_PASSES_WITHIN (pass_graphite)
 282               NEXT_PASS (pass_graphite_transforms);
 283               NEXT_PASS (pass_lim);
 284               NEXT_PASS (pass_copy_prop);
 285               NEXT_PASS (pass_dce);
 286           POP_INSERT_PASSES ()
 287           NEXT_PASS (pass_parallelize_loops, false /* oacc_kernels_p */);
 288           NEXT_PASS (pass_expand_omp_ssa);
 289           NEXT_PASS (pass_ch_vect);
 290           NEXT_PASS (pass_if_conversion);
 291           /* pass_vectorize must immediately follow pass_if_conversion.
 292              Please do not add any other passes in between.  */
 293           NEXT_PASS (pass_vectorize);
 294           PUSH_INSERT_PASSES_WITHIN (pass_vectorize)
 295               NEXT_PASS (pass_dce);
 296           POP_INSERT_PASSES ()
 297           NEXT_PASS (pass_predcom);
 298           NEXT_PASS (pass_complete_unroll);
 299           NEXT_PASS (pass_pre_slp_scalar_cleanup);
 300           PUSH_INSERT_PASSES_WITHIN (pass_pre_slp_scalar_cleanup)
 301               NEXT_PASS (pass_fre, false /* may_iterate */);
 302               NEXT_PASS (pass_dse);
 303           POP_INSERT_PASSES ()
 304           NEXT_PASS (pass_slp_vectorize);
 305           NEXT_PASS (pass_loop_prefetch);
 306           /* Run IVOPTs after the last pass that uses data-reference analysis
 307              as that doesn't handle TARGET_MEM_REFs.  */
 308           NEXT_PASS (pass_iv_optimize);
 309           NEXT_PASS (pass_lim);
 310           NEXT_PASS (pass_tree_loop_done);
 311       POP_INSERT_PASSES ()
 312       /* Pass group that runs when pass_tree_loop is disabled or there
 313          are no loops in the function.  */
 314       NEXT_PASS (pass_tree_no_loop);
 315       PUSH_INSERT_PASSES_WITHIN (pass_tree_no_loop)
 316           NEXT_PASS (pass_slp_vectorize);
 317       POP_INSERT_PASSES ()
 318       NEXT_PASS (pass_simduid_cleanup);
 319       NEXT_PASS (pass_lower_vector_ssa);
 320       NEXT_PASS (pass_lower_switch);
 321       NEXT_PASS (pass_cse_reciprocals);
 322       NEXT_PASS (pass_reassoc, false /* insert_powi_p */);
 323       NEXT_PASS (pass_strength_reduction);
 324       NEXT_PASS (pass_split_paths);
 325       NEXT_PASS (pass_tracer);
 326       NEXT_PASS (pass_fre, false /* may_iterate */);
 327       /* After late FRE we rewrite no longer addressed locals into SSA
 328          form if possible.  */
 329       NEXT_PASS (pass_thread_jumps);
 330       NEXT_PASS (pass_dominator, false /* may_peel_loop_headers_p */);
 331       NEXT_PASS (pass_strlen);
 332       NEXT_PASS (pass_thread_jumps);
 333       NEXT_PASS (pass_vrp, false /* warn_array_bounds_p */);
 334       /* Threading can leave many const/copy propagations in the IL.
 335          Clean them up.  */
 336       NEXT_PASS (pass_copy_prop);
 337       NEXT_PASS (pass_warn_restrict);
 338       NEXT_PASS (pass_dse);
 339       NEXT_PASS (pass_cd_dce, true /* update_address_taken_p */);
 340       /* After late CD DCE we rewrite no longer addressed locals into SSA
 341          form if possible.  */
 342       NEXT_PASS (pass_forwprop);
 343       NEXT_PASS (pass_phiopt, false /* early_p */);
 344       NEXT_PASS (pass_fold_builtins);
 345       NEXT_PASS (pass_optimize_widening_mul);
 346       NEXT_PASS (pass_store_merging);
 347       NEXT_PASS (pass_tail_calls);
 348       /* If DCE is not run before checking for uninitialized uses,
 349          we may get false warnings (e.g., testsuite/gcc.dg/uninit-5.c).
 350          However, this also causes us to misdiagnose cases that should be
 351          real warnings (e.g., testsuite/gcc.dg/pr18501.c).  */
 352       NEXT_PASS (pass_dce);
 353       /* Split critical edges before late uninit warning to reduce the
 354          number of false positives from it.  */
 355       NEXT_PASS (pass_split_crit_edges);
 356       NEXT_PASS (pass_late_warn_uninitialized);
 357       NEXT_PASS (pass_uncprop);
 358       NEXT_PASS (pass_local_pure_const);
 359       NEXT_PASS (pass_modref);
 360   POP_INSERT_PASSES ()
 361   NEXT_PASS (pass_all_optimizations_g);
 362   PUSH_INSERT_PASSES_WITHIN (pass_all_optimizations_g)
 363       NEXT_PASS (pass_remove_cgraph_callee_edges);
 364       NEXT_PASS (pass_strip_predict_hints, false /* early_p */);
 365       /* Lower remaining pieces of GIMPLE.  */
 366       NEXT_PASS (pass_lower_complex);
 367       NEXT_PASS (pass_lower_vector_ssa);
 368       NEXT_PASS (pass_lower_switch);
 369       /* Perform simple scalar cleanup which is constant/copy propagation.  */
 370       NEXT_PASS (pass_ccp, true /* nonzero_p */);
 371       NEXT_PASS (pass_post_ipa_warn);
 372       NEXT_PASS (pass_object_sizes);
 373       /* Fold remaining builtins.  */
 374       NEXT_PASS (pass_fold_builtins);
 375       NEXT_PASS (pass_strlen);
 376       /* Copy propagation also copy-propagates constants, this is necessary
 377          to forward object-size and builtin folding results properly.  */
 378       NEXT_PASS (pass_copy_prop);
 379       NEXT_PASS (pass_dce);
 380       NEXT_PASS (pass_sancov);
 381       NEXT_PASS (pass_asan);
 382       NEXT_PASS (pass_tsan);
 383       /* ???  We do want some kind of loop invariant motion, but we possibly
 384          need to adjust LIM to be more friendly towards preserving accurate
 385          debug information here.  */
 386       /* Split critical edges before late uninit warning to reduce the
 387          number of false positives from it.  */
 388       NEXT_PASS (pass_split_crit_edges);
 389       NEXT_PASS (pass_late_warn_uninitialized);
 390       NEXT_PASS (pass_uncprop);
 391       NEXT_PASS (pass_local_pure_const);
 392       NEXT_PASS (pass_modref);
 393   POP_INSERT_PASSES ()
 394   NEXT_PASS (pass_tm_init);
 395   PUSH_INSERT_PASSES_WITHIN (pass_tm_init)
 396       NEXT_PASS (pass_tm_mark);
 397       NEXT_PASS (pass_tm_memopt);
 398       NEXT_PASS (pass_tm_edges);
 399   POP_INSERT_PASSES ()
 400   NEXT_PASS (pass_simduid_cleanup);
 401   NEXT_PASS (pass_vtable_verify);
 402   NEXT_PASS (pass_lower_vaarg);
 403   NEXT_PASS (pass_lower_vector);
 404   NEXT_PASS (pass_lower_complex_O0);
 405   NEXT_PASS (pass_sancov_O0);
 406   NEXT_PASS (pass_lower_switch_O0);
 407   NEXT_PASS (pass_asan_O0);
 408   NEXT_PASS (pass_tsan_O0);
 409   NEXT_PASS (pass_sanopt);
 410   NEXT_PASS (pass_cleanup_eh);
 411   NEXT_PASS (pass_lower_resx);
 412   NEXT_PASS (pass_nrv);
 413   NEXT_PASS (pass_gimple_isel);
 414   NEXT_PASS (pass_cleanup_cfg_post_optimizing);
 415   NEXT_PASS (pass_warn_function_noreturn);
 416
 417   NEXT_PASS (pass_expand);
 418
 419   NEXT_PASS (pass_rest_of_compilation);
 420   PUSH_INSERT_PASSES_WITHIN (pass_rest_of_compilation)
 421       NEXT_PASS (pass_instantiate_virtual_regs);
 422       NEXT_PASS (pass_into_cfg_layout_mode);
 423       NEXT_PASS (pass_jump);
 424       NEXT_PASS (pass_lower_subreg);
 425       NEXT_PASS (pass_df_initialize_opt);
 426       NEXT_PASS (pass_cse);
 427       NEXT_PASS (pass_rtl_fwprop);
 428       NEXT_PASS (pass_rtl_cprop);
 429       NEXT_PASS (pass_rtl_pre);
 430       NEXT_PASS (pass_rtl_hoist);
 431       NEXT_PASS (pass_rtl_cprop);
 432       NEXT_PASS (pass_rtl_store_motion);
 433       NEXT_PASS (pass_cse_after_global_opts);
 434       NEXT_PASS (pass_rtl_ifcvt);
 435       NEXT_PASS (pass_reginfo_init);
 436       /* Perform loop optimizations.  It might be better to do them a bit
 437          sooner, but we want the profile feedback to work more
 438          efficiently.  */
 439       NEXT_PASS (pass_loop2);
 440       PUSH_INSERT_PASSES_WITHIN (pass_loop2)
 441           NEXT_PASS (pass_rtl_loop_init);
 442           NEXT_PASS (pass_rtl_move_loop_invariants);
 443           NEXT_PASS (pass_rtl_unroll_loops);
 444           NEXT_PASS (pass_rtl_doloop);
 445           NEXT_PASS (pass_rtl_loop_done);
 446       POP_INSERT_PASSES ()
 447       NEXT_PASS (pass_lower_subreg2);
 448       NEXT_PASS (pass_web);
 449       NEXT_PASS (pass_rtl_cprop);
 450       NEXT_PASS (pass_cse2);
 451       NEXT_PASS (pass_rtl_dse1);
 452       NEXT_PASS (pass_rtl_fwprop_addr);
 453       NEXT_PASS (pass_inc_dec);
 454       NEXT_PASS (pass_initialize_regs);
 455       NEXT_PASS (pass_ud_rtl_dce);
 456       NEXT_PASS (pass_combine);
 457       NEXT_PASS (pass_if_after_combine);
 458       NEXT_PASS (pass_jump_after_combine);
 459       NEXT_PASS (pass_partition_blocks);
 460       NEXT_PASS (pass_outof_cfg_layout_mode);
 461       NEXT_PASS (pass_split_all_insns);
 462       NEXT_PASS (pass_lower_subreg3);
 463       NEXT_PASS (pass_df_initialize_no_opt);
 464       NEXT_PASS (pass_stack_ptr_mod);
 465       NEXT_PASS (pass_mode_switching);
 466       NEXT_PASS (pass_match_asm_constraints);
 467       NEXT_PASS (pass_sms);
 468       NEXT_PASS (pass_live_range_shrinkage);
 469       NEXT_PASS (pass_sched);
 470       NEXT_PASS (pass_early_remat);
 471       NEXT_PASS (pass_ira);
 472       NEXT_PASS (pass_reload);
 473       NEXT_PASS (pass_postreload);
 474       PUSH_INSERT_PASSES_WITHIN (pass_postreload)
 475           NEXT_PASS (pass_postreload_cse);
 476           NEXT_PASS (pass_gcse2);
 477           NEXT_PASS (pass_split_after_reload);
 478           NEXT_PASS (pass_ree);
 479           NEXT_PASS (pass_compare_elim_after_reload);
 480           NEXT_PASS (pass_thread_prologue_and_epilogue);
 481           NEXT_PASS (pass_rtl_dse2);
 482           NEXT_PASS (pass_stack_adjustments);
 483           NEXT_PASS (pass_jump2);
 484           NEXT_PASS (pass_duplicate_computed_gotos);
 485           NEXT_PASS (pass_sched_fusion);
 486           NEXT_PASS (pass_peephole2);
 487           NEXT_PASS (pass_if_after_reload);
 488           NEXT_PASS (pass_regrename);
 489           NEXT_PASS (pass_cprop_hardreg);
 490           NEXT_PASS (pass_fast_rtl_dce);
 491           NEXT_PASS (pass_reorder_blocks);
 492           NEXT_PASS (pass_leaf_regs);
 493           NEXT_PASS (pass_split_before_sched2);
 494           NEXT_PASS (pass_sched2);
 495           NEXT_PASS (pass_stack_regs);
 496           PUSH_INSERT_PASSES_WITHIN (pass_stack_regs)
 497               NEXT_PASS (pass_split_before_regstack);
 498               NEXT_PASS (pass_stack_regs_run);
 499           POP_INSERT_PASSES ()
 500       POP_INSERT_PASSES ()
 501       NEXT_PASS (pass_late_compilation);
 502       PUSH_INSERT_PASSES_WITHIN (pass_late_compilation)
 503           NEXT_PASS (pass_zero_call_used_regs);
 504           NEXT_PASS (pass_compute_alignments);
 505           NEXT_PASS (pass_variable_tracking);
 506           NEXT_PASS (pass_free_cfg);
 507           NEXT_PASS (pass_machine_reorg);
 508           NEXT_PASS (pass_cleanup_barriers);
 509           NEXT_PASS (pass_delay_slots);
 510           NEXT_PASS (pass_split_for_shorten_branches);
 511           NEXT_PASS (pass_convert_to_eh_region_ranges);
 512           NEXT_PASS (pass_shorten_branches);
 513           NEXT_PASS (pass_set_nothrow_function_flags);
 514           NEXT_PASS (pass_dwarf2_frame);
 515           NEXT_PASS (pass_final);
 516       POP_INSERT_PASSES ()
 517       NEXT_PASS (pass_df_finish);
 518   POP_INSERT_PASSES ()
 519   NEXT_PASS (pass_clean_state);
 520   TERMINATE_PASS_LIST (all_passes)