gcc/passes.def

   1 /* Description of pass structure
   2    Copyright (C) 1987-2020 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_coroutine_lower_builtins);
  43   NEXT_PASS (pass_build_cfg);
  44   NEXT_PASS (pass_warn_function_return);
  45   NEXT_PASS (pass_coroutine_early_expand_ifns);
  46   NEXT_PASS (pass_expand_omp);
  47   NEXT_PASS (pass_warn_printf);
  48   NEXT_PASS (pass_walloca, /*strict_mode_p=*/true);
  49   NEXT_PASS (pass_build_cgraph_edges);
  50   TERMINATE_PASS_LIST (all_lowering_passes)
  51
  52   /* Interprocedural optimization passes.  */
  53   INSERT_PASSES_AFTER (all_small_ipa_passes)
  54   NEXT_PASS (pass_ipa_free_lang_data);
  55   NEXT_PASS (pass_ipa_function_and_variable_visibility);
  56   NEXT_PASS (pass_build_ssa_passes);
  57   PUSH_INSERT_PASSES_WITHIN (pass_build_ssa_passes)
  58       NEXT_PASS (pass_fixup_cfg);
  59       NEXT_PASS (pass_build_ssa);
  60       NEXT_PASS (pass_warn_nonnull_compare);
  61       NEXT_PASS (pass_early_warn_uninitialized);
  62       NEXT_PASS (pass_ubsan);
  63       NEXT_PASS (pass_nothrow);
  64       NEXT_PASS (pass_rebuild_cgraph_edges);
  65   POP_INSERT_PASSES ()
  66
  67   NEXT_PASS (pass_local_optimization_passes);
  68   PUSH_INSERT_PASSES_WITHIN (pass_local_optimization_passes)
  69       NEXT_PASS (pass_fixup_cfg);
  70       NEXT_PASS (pass_rebuild_cgraph_edges);
  71       NEXT_PASS (pass_local_fn_summary);
  72       NEXT_PASS (pass_early_inline);
  73       NEXT_PASS (pass_all_early_optimizations);
  74       PUSH_INSERT_PASSES_WITHIN (pass_all_early_optimizations)
  75           NEXT_PASS (pass_remove_cgraph_callee_edges);
  76           NEXT_PASS (pass_object_sizes, true /* insert_min_max_p */);
  77           /* Don't record nonzero bits before IPA to avoid
  78              using too much memory.  */
  79           NEXT_PASS (pass_ccp, false /* nonzero_p */);
  80           /* After CCP we rewrite no longer addressed locals into SSA
  81              form if possible.  */
  82           NEXT_PASS (pass_forwprop);
  83           NEXT_PASS (pass_early_thread_jumps);
  84           NEXT_PASS (pass_sra_early);
  85           /* pass_build_ealias is a dummy pass that ensures that we
  86              execute TODO_rebuild_alias at this point.  */
  87           NEXT_PASS (pass_build_ealias);
  88           NEXT_PASS (pass_fre, true /* may_iterate */);
  89           NEXT_PASS (pass_early_vrp);
  90           NEXT_PASS (pass_merge_phi);
  91           NEXT_PASS (pass_dse);
  92           NEXT_PASS (pass_cd_dce);
  93           NEXT_PASS (pass_phiopt, true /* early_p */);
  94           NEXT_PASS (pass_tail_recursion);
  95           NEXT_PASS (pass_convert_switch);
  96           NEXT_PASS (pass_cleanup_eh);
  97           NEXT_PASS (pass_profile);
  98           NEXT_PASS (pass_local_pure_const);
  99           /* Split functions creates parts that are not run through
 100              early optimizations again.  It is thus good idea to do this
 101               late.  */
 102           NEXT_PASS (pass_split_functions);
 103           NEXT_PASS (pass_strip_predict_hints, true /* early_p */);
 104       POP_INSERT_PASSES ()
 105       NEXT_PASS (pass_release_ssa_names);
 106       NEXT_PASS (pass_rebuild_cgraph_edges);
 107       NEXT_PASS (pass_local_fn_summary);
 108   POP_INSERT_PASSES ()
 109
 110   NEXT_PASS (pass_ipa_remove_symbols);
 111   NEXT_PASS (pass_ipa_oacc);
 112   PUSH_INSERT_PASSES_WITHIN (pass_ipa_oacc)
 113       NEXT_PASS (pass_ipa_pta);
 114       /* Pass group that runs when the function is an offloaded function
 115          containing oacc kernels loops.  */
 116       NEXT_PASS (pass_ipa_oacc_kernels);
 117       PUSH_INSERT_PASSES_WITHIN (pass_ipa_oacc_kernels)
 118           NEXT_PASS (pass_oacc_kernels);
 119           PUSH_INSERT_PASSES_WITHIN (pass_oacc_kernels)
 120               NEXT_PASS (pass_ch);
 121               NEXT_PASS (pass_fre, true /* may_iterate */);
 122               /* We use pass_lim to rewrite in-memory iteration and reduction
 123                  variable accesses in loops into local variables accesses.  */
 124               NEXT_PASS (pass_lim);
 125               NEXT_PASS (pass_dominator, false /* may_peel_loop_headers_p */);
 126               NEXT_PASS (pass_dce);
 127               NEXT_PASS (pass_parallelize_loops, true /* oacc_kernels_p */);
 128               NEXT_PASS (pass_expand_omp_ssa);
 129               NEXT_PASS (pass_rebuild_cgraph_edges);
 130           POP_INSERT_PASSES ()
 131       POP_INSERT_PASSES ()
 132   POP_INSERT_PASSES ()
 133
 134   NEXT_PASS (pass_target_clone);
 135   NEXT_PASS (pass_ipa_auto_profile);
 136   NEXT_PASS (pass_ipa_tree_profile);
 137   PUSH_INSERT_PASSES_WITHIN (pass_ipa_tree_profile)
 138       NEXT_PASS (pass_feedback_split_functions);
 139   POP_INSERT_PASSES ()
 140   NEXT_PASS (pass_ipa_free_fn_summary, true /* small_p */);
 141   NEXT_PASS (pass_ipa_increase_alignment);
 142   NEXT_PASS (pass_ipa_tm);
 143   NEXT_PASS (pass_ipa_lower_emutls);
 144   TERMINATE_PASS_LIST (all_small_ipa_passes)
 145
 146   INSERT_PASSES_AFTER (all_regular_ipa_passes)
 147   NEXT_PASS (pass_analyzer);
 148   NEXT_PASS (pass_ipa_odr);
 149   NEXT_PASS (pass_ipa_whole_program_visibility);
 150   NEXT_PASS (pass_ipa_profile);
 151   NEXT_PASS (pass_ipa_icf);
 152   NEXT_PASS (pass_ipa_devirt);
 153   NEXT_PASS (pass_ipa_cp);
 154   NEXT_PASS (pass_ipa_sra);
 155   NEXT_PASS (pass_ipa_cdtor_merge);
 156   NEXT_PASS (pass_ipa_fn_summary);
 157   NEXT_PASS (pass_ipa_inline);
 158   NEXT_PASS (pass_ipa_pure_const);
 159   NEXT_PASS (pass_ipa_free_fn_summary, false /* small_p */);
 160   NEXT_PASS (pass_ipa_reference);
 161   /* This pass needs to be scheduled after any IP code duplication.   */
 162   NEXT_PASS (pass_ipa_single_use);
 163   /* Comdat privatization come last, as direct references to comdat local
 164      symbols are not allowed outside of the comdat group.  Privatizing early
 165      would result in missed optimizations due to this restriction.  */
 166   NEXT_PASS (pass_ipa_comdats);
 167   TERMINATE_PASS_LIST (all_regular_ipa_passes)
 168
 169   /* Simple IPA passes executed after the regular passes.  In WHOPR mode the
 170      passes are executed after partitioning and thus see just parts of the
 171      compiled unit.  */
 172   INSERT_PASSES_AFTER (all_late_ipa_passes)
 173   NEXT_PASS (pass_materialize_all_clones);
 174   NEXT_PASS (pass_ipa_pta);
 175   NEXT_PASS (pass_omp_simd_clone);
 176   TERMINATE_PASS_LIST (all_late_ipa_passes)
 177
 178   /* These passes are run after IPA passes on every function that is being
 179      output to the assembler file.  */
 180   INSERT_PASSES_AFTER (all_passes)
 181   NEXT_PASS (pass_fixup_cfg);
 182   NEXT_PASS (pass_lower_eh_dispatch);
 183   NEXT_PASS (pass_oacc_device_lower);
 184   NEXT_PASS (pass_omp_device_lower);
 185   NEXT_PASS (pass_omp_target_link);
 186   NEXT_PASS (pass_adjust_alignment);
 187   NEXT_PASS (pass_all_optimizations);
 188   PUSH_INSERT_PASSES_WITHIN (pass_all_optimizations)
 189       NEXT_PASS (pass_remove_cgraph_callee_edges);
 190       /* Initial scalar cleanups before alias computation.
 191          They ensure memory accesses are not indirect wherever possible.  */
 192       NEXT_PASS (pass_strip_predict_hints, false /* early_p */);
 193       NEXT_PASS (pass_ccp, true /* nonzero_p */);
 194       NEXT_PASS (pass_post_ipa_warn);
 195       /* After CCP we rewrite no longer addressed locals into SSA
 196          form if possible.  */
 197       NEXT_PASS (pass_complete_unrolli);
 198       NEXT_PASS (pass_backprop);
 199       NEXT_PASS (pass_phiprop);
 200       NEXT_PASS (pass_forwprop);
 201       NEXT_PASS (pass_object_sizes, false /* insert_min_max_p */);
 202       /* pass_build_alias is a dummy pass that ensures that we
 203          execute TODO_rebuild_alias at this point.  */
 204       NEXT_PASS (pass_build_alias);
 205       NEXT_PASS (pass_return_slot);
 206       NEXT_PASS (pass_fre, true /* may_iterate */);
 207       NEXT_PASS (pass_merge_phi);
 208       NEXT_PASS (pass_thread_jumps);
 209       NEXT_PASS (pass_vrp, true /* warn_array_bounds_p */);
 210       NEXT_PASS (pass_dce);
 211       NEXT_PASS (pass_stdarg);
 212       NEXT_PASS (pass_call_cdce);
 213       NEXT_PASS (pass_cselim);
 214       NEXT_PASS (pass_copy_prop);
 215       NEXT_PASS (pass_tree_ifcombine);
 216       NEXT_PASS (pass_merge_phi);
 217       NEXT_PASS (pass_phiopt, false /* early_p */);
 218       NEXT_PASS (pass_tail_recursion);
 219       NEXT_PASS (pass_ch);
 220       NEXT_PASS (pass_lower_complex);
 221       NEXT_PASS (pass_sra);
 222       /* The dom pass will also resolve all __builtin_constant_p calls
 223          that are still there to 0.  This has to be done after some
 224          propagations have already run, but before some more dead code
 225          is removed, and this place fits nicely.  Remember this when
 226          trying to move or duplicate pass_dominator somewhere earlier.  */
 227       NEXT_PASS (pass_thread_jumps);
 228       NEXT_PASS (pass_dominator, true /* may_peel_loop_headers_p */);
 229       /* Threading can leave many const/copy propagations in the IL.
 230          Clean them up.  Failure to do so well can lead to false
 231          positives from warnings for erroneous code.  */
 232       NEXT_PASS (pass_copy_prop);
 233       /* Identify paths that should never be executed in a conforming
 234          program and isolate those paths.  */
 235       NEXT_PASS (pass_isolate_erroneous_paths);
 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, false /* early_p */);
 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           /* Before loop_init we rewrite no longer addressed locals into SSA
 263              form if possible.  */
 264           NEXT_PASS (pass_tree_loop_init);
 265           NEXT_PASS (pass_tree_unswitch);
 266           NEXT_PASS (pass_scev_cprop);
 267           NEXT_PASS (pass_loop_split);
 268           NEXT_PASS (pass_loop_versioning);
 269           NEXT_PASS (pass_loop_jam);
 270           /* All unswitching, final value replacement and splitting can expose
 271              empty loops.  Remove them now.  */
 272           NEXT_PASS (pass_cd_dce);
 273           NEXT_PASS (pass_iv_canon);
 274           NEXT_PASS (pass_loop_distribution);
 275           NEXT_PASS (pass_linterchange);
 276           NEXT_PASS (pass_copy_prop);
 277           NEXT_PASS (pass_graphite);
 278           PUSH_INSERT_PASSES_WITHIN (pass_graphite)
 279               NEXT_PASS (pass_graphite_transforms);
 280               NEXT_PASS (pass_lim);
 281               NEXT_PASS (pass_copy_prop);
 282               NEXT_PASS (pass_dce);
 283           POP_INSERT_PASSES ()
 284           NEXT_PASS (pass_parallelize_loops, false /* oacc_kernels_p */);
 285           NEXT_PASS (pass_expand_omp_ssa);
 286           NEXT_PASS (pass_ch_vect);
 287           NEXT_PASS (pass_if_conversion);
 288           /* pass_vectorize must immediately follow pass_if_conversion.
 289              Please do not add any other passes in between.  */
 290           NEXT_PASS (pass_vectorize);
 291           PUSH_INSERT_PASSES_WITHIN (pass_vectorize)
 292               NEXT_PASS (pass_dce);
 293           POP_INSERT_PASSES ()
 294           NEXT_PASS (pass_predcom);
 295           NEXT_PASS (pass_complete_unroll);
 296           NEXT_PASS (pass_slp_vectorize);
 297           NEXT_PASS (pass_loop_prefetch);
 298           /* Run IVOPTs after the last pass that uses data-reference analysis
 299              as that doesn't handle TARGET_MEM_REFs.  */
 300           NEXT_PASS (pass_iv_optimize);
 301           NEXT_PASS (pass_lim);
 302           NEXT_PASS (pass_tree_loop_done);
 303       POP_INSERT_PASSES ()
 304       /* Pass group that runs when pass_tree_loop is disabled or there
 305          are no loops in the function.  */
 306       NEXT_PASS (pass_tree_no_loop);
 307       PUSH_INSERT_PASSES_WITHIN (pass_tree_no_loop)
 308           NEXT_PASS (pass_slp_vectorize);
 309       POP_INSERT_PASSES ()
 310       NEXT_PASS (pass_simduid_cleanup);
 311       NEXT_PASS (pass_lower_vector_ssa);
 312       NEXT_PASS (pass_lower_switch);
 313       NEXT_PASS (pass_cse_reciprocals);
 314       NEXT_PASS (pass_reassoc, false /* insert_powi_p */);
 315       NEXT_PASS (pass_strength_reduction);
 316       NEXT_PASS (pass_split_paths);
 317       NEXT_PASS (pass_tracer);
 318       NEXT_PASS (pass_fre, false /* may_iterate */);
 319       /* After late FRE we rewrite no longer addressed locals into SSA
 320          form if possible.  */
 321       NEXT_PASS (pass_thread_jumps);
 322       NEXT_PASS (pass_dominator, false /* may_peel_loop_headers_p */);
 323       NEXT_PASS (pass_strlen);
 324       NEXT_PASS (pass_thread_jumps);
 325       NEXT_PASS (pass_vrp, false /* warn_array_bounds_p */);
 326       /* Threading can leave many const/copy propagations in the IL.
 327          Clean them up.  */
 328       NEXT_PASS (pass_copy_prop);
 329       NEXT_PASS (pass_warn_restrict);
 330       NEXT_PASS (pass_dse);
 331       NEXT_PASS (pass_cd_dce);
 332       NEXT_PASS (pass_forwprop);
 333       NEXT_PASS (pass_phiopt, false /* early_p */);
 334       NEXT_PASS (pass_fold_builtins);
 335       NEXT_PASS (pass_optimize_widening_mul);
 336       NEXT_PASS (pass_store_merging);
 337       NEXT_PASS (pass_tail_calls);
 338       /* If DCE is not run before checking for uninitialized uses,
 339          we may get false warnings (e.g., testsuite/gcc.dg/uninit-5.c).
 340          However, this also causes us to misdiagnose cases that should be
 341          real warnings (e.g., testsuite/gcc.dg/pr18501.c).  */
 342       NEXT_PASS (pass_dce);
 343       /* Split critical edges before late uninit warning to reduce the
 344          number of false positives from it.  */
 345       NEXT_PASS (pass_split_crit_edges);
 346       NEXT_PASS (pass_late_warn_uninitialized);
 347       NEXT_PASS (pass_uncprop);
 348       NEXT_PASS (pass_local_pure_const);
 349   POP_INSERT_PASSES ()
 350   NEXT_PASS (pass_all_optimizations_g);
 351   PUSH_INSERT_PASSES_WITHIN (pass_all_optimizations_g)
 352       NEXT_PASS (pass_remove_cgraph_callee_edges);
 353       NEXT_PASS (pass_strip_predict_hints, false /* early_p */);
 354       /* Lower remaining pieces of GIMPLE.  */
 355       NEXT_PASS (pass_lower_complex);
 356       NEXT_PASS (pass_lower_vector_ssa);
 357       NEXT_PASS (pass_lower_switch);
 358       /* Perform simple scalar cleanup which is constant/copy propagation.  */
 359       NEXT_PASS (pass_ccp, true /* nonzero_p */);
 360       NEXT_PASS (pass_post_ipa_warn);
 361       NEXT_PASS (pass_object_sizes);
 362       /* Fold remaining builtins.  */
 363       NEXT_PASS (pass_fold_builtins);
 364       NEXT_PASS (pass_strlen);
 365       /* Copy propagation also copy-propagates constants, this is necessary
 366          to forward object-size and builtin folding results properly.  */
 367       NEXT_PASS (pass_copy_prop);
 368       NEXT_PASS (pass_dce);
 369       NEXT_PASS (pass_sancov);
 370       NEXT_PASS (pass_asan);
 371       NEXT_PASS (pass_tsan);
 372       /* ???  We do want some kind of loop invariant motion, but we possibly
 373          need to adjust LIM to be more friendly towards preserving accurate
 374          debug information here.  */
 375       /* Split critical edges before late uninit warning to reduce the
 376          number of false positives from it.  */
 377       NEXT_PASS (pass_split_crit_edges);
 378       NEXT_PASS (pass_late_warn_uninitialized);
 379       NEXT_PASS (pass_uncprop);
 380       NEXT_PASS (pass_local_pure_const);
 381   POP_INSERT_PASSES ()
 382   NEXT_PASS (pass_tm_init);
 383   PUSH_INSERT_PASSES_WITHIN (pass_tm_init)
 384       NEXT_PASS (pass_tm_mark);
 385       NEXT_PASS (pass_tm_memopt);
 386       NEXT_PASS (pass_tm_edges);
 387   POP_INSERT_PASSES ()
 388   NEXT_PASS (pass_simduid_cleanup);
 389   NEXT_PASS (pass_vtable_verify);
 390   NEXT_PASS (pass_lower_vaarg);
 391   NEXT_PASS (pass_lower_vector);
 392   NEXT_PASS (pass_lower_complex_O0);
 393   NEXT_PASS (pass_sancov_O0);
 394   NEXT_PASS (pass_lower_switch_O0);
 395   NEXT_PASS (pass_asan_O0);
 396   NEXT_PASS (pass_tsan_O0);
 397   NEXT_PASS (pass_sanopt);
 398   NEXT_PASS (pass_cleanup_eh);
 399   NEXT_PASS (pass_lower_resx);
 400   NEXT_PASS (pass_nrv);
 401   NEXT_PASS (pass_gimple_isel);
 402   NEXT_PASS (pass_cleanup_cfg_post_optimizing);
 403   NEXT_PASS (pass_warn_function_noreturn);
 404
 405   NEXT_PASS (pass_expand);
 406
 407   NEXT_PASS (pass_rest_of_compilation);
 408   PUSH_INSERT_PASSES_WITHIN (pass_rest_of_compilation)
 409       NEXT_PASS (pass_instantiate_virtual_regs);
 410       NEXT_PASS (pass_into_cfg_layout_mode);
 411       NEXT_PASS (pass_jump);
 412       NEXT_PASS (pass_lower_subreg);
 413       NEXT_PASS (pass_df_initialize_opt);
 414       NEXT_PASS (pass_cse);
 415       NEXT_PASS (pass_rtl_fwprop);
 416       NEXT_PASS (pass_rtl_cprop);
 417       NEXT_PASS (pass_rtl_pre);
 418       NEXT_PASS (pass_rtl_hoist);
 419       NEXT_PASS (pass_rtl_cprop);
 420       NEXT_PASS (pass_rtl_store_motion);
 421       NEXT_PASS (pass_cse_after_global_opts);
 422       NEXT_PASS (pass_rtl_ifcvt);
 423       NEXT_PASS (pass_reginfo_init);
 424       /* Perform loop optimizations.  It might be better to do them a bit
 425          sooner, but we want the profile feedback to work more
 426          efficiently.  */
 427       NEXT_PASS (pass_loop2);
 428       PUSH_INSERT_PASSES_WITHIN (pass_loop2)
 429           NEXT_PASS (pass_rtl_loop_init);
 430           NEXT_PASS (pass_rtl_move_loop_invariants);
 431           NEXT_PASS (pass_rtl_unroll_loops);
 432           NEXT_PASS (pass_rtl_doloop);
 433           NEXT_PASS (pass_rtl_loop_done);
 434       POP_INSERT_PASSES ()
 435       NEXT_PASS (pass_lower_subreg2);
 436       NEXT_PASS (pass_web);
 437       NEXT_PASS (pass_rtl_cprop);
 438       NEXT_PASS (pass_cse2);
 439       NEXT_PASS (pass_rtl_dse1);
 440       NEXT_PASS (pass_rtl_fwprop_addr);
 441       NEXT_PASS (pass_inc_dec);
 442       NEXT_PASS (pass_initialize_regs);
 443       NEXT_PASS (pass_ud_rtl_dce);
 444       NEXT_PASS (pass_combine);
 445       NEXT_PASS (pass_if_after_combine);
 446       NEXT_PASS (pass_jump_after_combine);
 447       NEXT_PASS (pass_partition_blocks);
 448       NEXT_PASS (pass_outof_cfg_layout_mode);
 449       NEXT_PASS (pass_split_all_insns);
 450       NEXT_PASS (pass_lower_subreg3);
 451       NEXT_PASS (pass_df_initialize_no_opt);
 452       NEXT_PASS (pass_stack_ptr_mod);
 453       NEXT_PASS (pass_mode_switching);
 454       NEXT_PASS (pass_match_asm_constraints);
 455       NEXT_PASS (pass_sms);
 456       NEXT_PASS (pass_live_range_shrinkage);
 457       NEXT_PASS (pass_sched);
 458       NEXT_PASS (pass_early_remat);
 459       NEXT_PASS (pass_ira);
 460       NEXT_PASS (pass_reload);
 461       NEXT_PASS (pass_postreload);
 462       PUSH_INSERT_PASSES_WITHIN (pass_postreload)
 463           NEXT_PASS (pass_postreload_cse);
 464           NEXT_PASS (pass_gcse2);
 465           NEXT_PASS (pass_split_after_reload);
 466           NEXT_PASS (pass_ree);
 467           NEXT_PASS (pass_compare_elim_after_reload);
 468           NEXT_PASS (pass_thread_prologue_and_epilogue);
 469           NEXT_PASS (pass_rtl_dse2);
 470           NEXT_PASS (pass_stack_adjustments);
 471           NEXT_PASS (pass_jump2);
 472           NEXT_PASS (pass_duplicate_computed_gotos);
 473           NEXT_PASS (pass_sched_fusion);
 474           NEXT_PASS (pass_peephole2);
 475           NEXT_PASS (pass_if_after_reload);
 476           NEXT_PASS (pass_regrename);
 477           NEXT_PASS (pass_cprop_hardreg);
 478           NEXT_PASS (pass_fast_rtl_dce);
 479           NEXT_PASS (pass_reorder_blocks);
 480           NEXT_PASS (pass_leaf_regs);
 481           NEXT_PASS (pass_split_before_sched2);
 482           NEXT_PASS (pass_sched2);
 483           NEXT_PASS (pass_stack_regs);
 484           PUSH_INSERT_PASSES_WITHIN (pass_stack_regs)
 485               NEXT_PASS (pass_split_before_regstack);
 486               NEXT_PASS (pass_stack_regs_run);
 487           POP_INSERT_PASSES ()
 488       POP_INSERT_PASSES ()
 489       NEXT_PASS (pass_late_compilation);
 490       PUSH_INSERT_PASSES_WITHIN (pass_late_compilation)
 491           NEXT_PASS (pass_compute_alignments);
 492           NEXT_PASS (pass_variable_tracking);
 493           NEXT_PASS (pass_free_cfg);
 494           NEXT_PASS (pass_machine_reorg);
 495           NEXT_PASS (pass_cleanup_barriers);
 496           NEXT_PASS (pass_delay_slots);
 497           NEXT_PASS (pass_split_for_shorten_branches);
 498           NEXT_PASS (pass_convert_to_eh_region_ranges);
 499           NEXT_PASS (pass_shorten_branches);
 500           NEXT_PASS (pass_set_nothrow_function_flags);
 501           NEXT_PASS (pass_dwarf2_frame);
 502           NEXT_PASS (pass_final);
 503       POP_INSERT_PASSES ()
 504       NEXT_PASS (pass_df_finish);
 505   POP_INSERT_PASSES ()
 506   NEXT_PASS (pass_clean_state);
 507   TERMINATE_PASS_LIST (all_passes)