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_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_printf);
  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_early_object_sizes);
  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_loop_designation);
 187   NEXT_PASS (pass_omp_oacc_neuter_broadcast);
 188   NEXT_PASS (pass_oacc_device_lower);
 189   NEXT_PASS (pass_omp_device_lower);
 190   NEXT_PASS (pass_omp_target_link);
 191   NEXT_PASS (pass_adjust_alignment);
 192   NEXT_PASS (pass_all_optimizations);
 193   PUSH_INSERT_PASSES_WITHIN (pass_all_optimizations)
 194       NEXT_PASS (pass_remove_cgraph_callee_edges);
 195       /* Initial scalar cleanups before alias computation.
 196          They ensure memory accesses are not indirect wherever possible.  */
 197       NEXT_PASS (pass_strip_predict_hints, false /* early_p */);
 198       NEXT_PASS (pass_ccp, true /* nonzero_p */);
 199       /* After CCP we rewrite no longer addressed locals into SSA
 200          form if possible.  */
 201       NEXT_PASS (pass_object_sizes);
 202       NEXT_PASS (pass_post_ipa_warn);
 203       NEXT_PASS (pass_complete_unrolli);
 204       NEXT_PASS (pass_backprop);
 205       NEXT_PASS (pass_phiprop);
 206       NEXT_PASS (pass_forwprop);
 207       /* pass_build_alias is a dummy pass that ensures that we
 208          execute TODO_rebuild_alias at this point.  */
 209       NEXT_PASS (pass_build_alias);
 210       NEXT_PASS (pass_return_slot);
 211       NEXT_PASS (pass_fre, true /* may_iterate */);
 212       NEXT_PASS (pass_merge_phi);
 213       NEXT_PASS (pass_thread_jumps);
 214       NEXT_PASS (pass_vrp, true /* warn_array_bounds_p */);
 215       NEXT_PASS (pass_vrp_threader);
 216       NEXT_PASS (pass_dse);
 217       NEXT_PASS (pass_dce);
 218       /* pass_stdarg is always run and at this point we execute
 219          TODO_remove_unused_locals to prune CLOBBERs of dead
 220          variables which are otherwise a churn on alias walkings.  */
 221       NEXT_PASS (pass_stdarg);
 222       NEXT_PASS (pass_call_cdce);
 223       NEXT_PASS (pass_cselim);
 224       NEXT_PASS (pass_copy_prop);
 225       NEXT_PASS (pass_tree_ifcombine);
 226       NEXT_PASS (pass_merge_phi);
 227       NEXT_PASS (pass_phiopt, false /* early_p */);
 228       NEXT_PASS (pass_tail_recursion);
 229       NEXT_PASS (pass_ch);
 230       NEXT_PASS (pass_lower_complex);
 231       NEXT_PASS (pass_sra);
 232       /* The dom pass will also resolve all __builtin_constant_p calls
 233          that are still there to 0.  This has to be done after some
 234          propagations have already run, but before some more dead code
 235          is removed, and this place fits nicely.  Remember this when
 236          trying to move or duplicate pass_dominator somewhere earlier.  */
 237       NEXT_PASS (pass_thread_jumps);
 238       NEXT_PASS (pass_dominator, true /* may_peel_loop_headers_p */);
 239       /* Threading can leave many const/copy propagations in the IL.
 240          Clean them up.  Failure to do so well can lead to false
 241          positives from warnings for erroneous code.  */
 242       NEXT_PASS (pass_copy_prop);
 243       /* Identify paths that should never be executed in a conforming
 244          program and isolate those paths.  */
 245       NEXT_PASS (pass_isolate_erroneous_paths);
 246       NEXT_PASS (pass_reassoc, true /* early_p */);
 247       NEXT_PASS (pass_dce);
 248       NEXT_PASS (pass_forwprop);
 249       NEXT_PASS (pass_phiopt, false /* early_p */);
 250       NEXT_PASS (pass_ccp, true /* nonzero_p */);
 251       /* After CCP we rewrite no longer addressed locals into SSA
 252          form if possible.  */
 253       NEXT_PASS (pass_cse_sincos);
 254       NEXT_PASS (pass_optimize_bswap);
 255       NEXT_PASS (pass_laddress);
 256       NEXT_PASS (pass_lim);
 257       NEXT_PASS (pass_walloca, false);
 258       NEXT_PASS (pass_pre);
 259       NEXT_PASS (pass_sink_code);
 260       NEXT_PASS (pass_sancov);
 261       NEXT_PASS (pass_asan);
 262       NEXT_PASS (pass_tsan);
 263       NEXT_PASS (pass_dse);
 264       NEXT_PASS (pass_dce);
 265       /* Pass group that runs when 1) enabled, 2) there are loops
 266          in the function.  Make sure to run pass_fix_loops before
 267          to discover/remove loops before running the gate function
 268          of pass_tree_loop.  */
 269       NEXT_PASS (pass_fix_loops);
 270       NEXT_PASS (pass_tree_loop);
 271       PUSH_INSERT_PASSES_WITHIN (pass_tree_loop)
 272           /* Before loop_init we rewrite no longer addressed locals into SSA
 273              form if possible.  */
 274           NEXT_PASS (pass_tree_loop_init);
 275           NEXT_PASS (pass_tree_unswitch);
 276           NEXT_PASS (pass_scev_cprop);
 277           NEXT_PASS (pass_loop_split);
 278           NEXT_PASS (pass_loop_versioning);
 279           NEXT_PASS (pass_loop_jam);
 280           /* All unswitching, final value replacement and splitting can expose
 281              empty loops.  Remove them now.  */
 282           NEXT_PASS (pass_cd_dce, false /* update_address_taken_p */);
 283           NEXT_PASS (pass_iv_canon);
 284           NEXT_PASS (pass_loop_distribution);
 285           NEXT_PASS (pass_linterchange);
 286           NEXT_PASS (pass_copy_prop);
 287           NEXT_PASS (pass_graphite);
 288           PUSH_INSERT_PASSES_WITHIN (pass_graphite)
 289               NEXT_PASS (pass_graphite_transforms);
 290               NEXT_PASS (pass_lim);
 291               NEXT_PASS (pass_copy_prop);
 292               NEXT_PASS (pass_dce);
 293           POP_INSERT_PASSES ()
 294           NEXT_PASS (pass_parallelize_loops, false /* oacc_kernels_p */);
 295           NEXT_PASS (pass_expand_omp_ssa);
 296           NEXT_PASS (pass_ch_vect);
 297           NEXT_PASS (pass_if_conversion);
 298           /* pass_vectorize must immediately follow pass_if_conversion.
 299              Please do not add any other passes in between.  */
 300           NEXT_PASS (pass_vectorize);
 301           PUSH_INSERT_PASSES_WITHIN (pass_vectorize)
 302               NEXT_PASS (pass_dce);
 303           POP_INSERT_PASSES ()
 304           NEXT_PASS (pass_predcom);
 305           NEXT_PASS (pass_complete_unroll);
 306           NEXT_PASS (pass_pre_slp_scalar_cleanup);
 307           PUSH_INSERT_PASSES_WITHIN (pass_pre_slp_scalar_cleanup)
 308               NEXT_PASS (pass_fre, false /* may_iterate */);
 309               NEXT_PASS (pass_dse);
 310           POP_INSERT_PASSES ()
 311           NEXT_PASS (pass_slp_vectorize);
 312           NEXT_PASS (pass_loop_prefetch);
 313           /* Run IVOPTs after the last pass that uses data-reference analysis
 314              as that doesn't handle TARGET_MEM_REFs.  */
 315           NEXT_PASS (pass_iv_optimize);
 316           NEXT_PASS (pass_lim);
 317           NEXT_PASS (pass_tree_loop_done);
 318       POP_INSERT_PASSES ()
 319       /* Pass group that runs when pass_tree_loop is disabled or there
 320          are no loops in the function.  */
 321       NEXT_PASS (pass_tree_no_loop);
 322       PUSH_INSERT_PASSES_WITHIN (pass_tree_no_loop)
 323           NEXT_PASS (pass_slp_vectorize);
 324       POP_INSERT_PASSES ()
 325       NEXT_PASS (pass_simduid_cleanup);
 326       NEXT_PASS (pass_lower_vector_ssa);
 327       NEXT_PASS (pass_lower_switch);
 328       NEXT_PASS (pass_cse_reciprocals);
 329       NEXT_PASS (pass_reassoc, false /* early_p */);
 330       NEXT_PASS (pass_strength_reduction);
 331       NEXT_PASS (pass_split_paths);
 332       NEXT_PASS (pass_tracer);
 333       NEXT_PASS (pass_fre, false /* may_iterate */);
 334       /* After late FRE we rewrite no longer addressed locals into SSA
 335          form if possible.  */
 336       NEXT_PASS (pass_thread_jumps);
 337       NEXT_PASS (pass_dominator, false /* may_peel_loop_headers_p */);
 338       NEXT_PASS (pass_strlen);
 339       NEXT_PASS (pass_thread_jumps);
 340       NEXT_PASS (pass_vrp, false /* warn_array_bounds_p */);
 341       NEXT_PASS (pass_vrp_threader);
 342       /* Threading can leave many const/copy propagations in the IL.
 343          Clean them up.  Instead of just copy_prop, we use ccp to
 344          compute alignment and nonzero bits.  */
 345       NEXT_PASS (pass_ccp, true /* nonzero_p */);
 346       NEXT_PASS (pass_warn_restrict);
 347       NEXT_PASS (pass_dse);
 348       NEXT_PASS (pass_cd_dce, true /* update_address_taken_p */);
 349       /* After late CD DCE we rewrite no longer addressed locals into SSA
 350          form if possible.  */
 351       NEXT_PASS (pass_forwprop);
 352       NEXT_PASS (pass_phiopt, false /* early_p */);
 353       NEXT_PASS (pass_fold_builtins);
 354       NEXT_PASS (pass_optimize_widening_mul);
 355       NEXT_PASS (pass_sink_code);
 356       NEXT_PASS (pass_store_merging);
 357       NEXT_PASS (pass_tail_calls);
 358       /* If DCE is not run before checking for uninitialized uses,
 359          we may get false warnings (e.g., testsuite/gcc.dg/uninit-5.c).
 360          However, this also causes us to misdiagnose cases that should be
 361          real warnings (e.g., testsuite/gcc.dg/pr18501.c).  */
 362       NEXT_PASS (pass_dce);
 363       /* Split critical edges before late uninit warning to reduce the
 364          number of false positives from it.  */
 365       NEXT_PASS (pass_split_crit_edges);
 366       NEXT_PASS (pass_late_warn_uninitialized);
 367       NEXT_PASS (pass_uncprop);
 368       NEXT_PASS (pass_local_pure_const);
 369       NEXT_PASS (pass_modref);
 370   POP_INSERT_PASSES ()
 371   NEXT_PASS (pass_all_optimizations_g);
 372   PUSH_INSERT_PASSES_WITHIN (pass_all_optimizations_g)
 373       NEXT_PASS (pass_remove_cgraph_callee_edges);
 374       NEXT_PASS (pass_strip_predict_hints, false /* early_p */);
 375       /* Lower remaining pieces of GIMPLE.  */
 376       NEXT_PASS (pass_lower_complex);
 377       NEXT_PASS (pass_lower_vector_ssa);
 378       NEXT_PASS (pass_lower_switch);
 379       /* Perform simple scalar cleanup which is constant/copy propagation.  */
 380       NEXT_PASS (pass_ccp, true /* nonzero_p */);
 381       NEXT_PASS (pass_post_ipa_warn);
 382       NEXT_PASS (pass_object_sizes);
 383       /* Fold remaining builtins.  */
 384       NEXT_PASS (pass_fold_builtins);
 385       NEXT_PASS (pass_strlen);
 386       /* Copy propagation also copy-propagates constants, this is necessary
 387          to forward object-size and builtin folding results properly.  */
 388       NEXT_PASS (pass_copy_prop);
 389       NEXT_PASS (pass_dce);
 390       NEXT_PASS (pass_sancov);
 391       NEXT_PASS (pass_asan);
 392       NEXT_PASS (pass_tsan);
 393       /* ???  We do want some kind of loop invariant motion, but we possibly
 394          need to adjust LIM to be more friendly towards preserving accurate
 395          debug information here.  */
 396       /* Split critical edges before late uninit warning to reduce the
 397          number of false positives from it.  */
 398       NEXT_PASS (pass_split_crit_edges);
 399       NEXT_PASS (pass_late_warn_uninitialized);
 400       NEXT_PASS (pass_uncprop);
 401       NEXT_PASS (pass_local_pure_const);
 402       NEXT_PASS (pass_modref);
 403   POP_INSERT_PASSES ()
 404   NEXT_PASS (pass_tm_init);
 405   PUSH_INSERT_PASSES_WITHIN (pass_tm_init)
 406       NEXT_PASS (pass_tm_mark);
 407       NEXT_PASS (pass_tm_memopt);
 408       NEXT_PASS (pass_tm_edges);
 409   POP_INSERT_PASSES ()
 410   NEXT_PASS (pass_simduid_cleanup);
 411   NEXT_PASS (pass_vtable_verify);
 412   NEXT_PASS (pass_lower_vaarg);
 413   NEXT_PASS (pass_lower_vector);
 414   NEXT_PASS (pass_lower_complex_O0);
 415   NEXT_PASS (pass_sancov_O0);
 416   NEXT_PASS (pass_lower_switch_O0);
 417   NEXT_PASS (pass_asan_O0);
 418   NEXT_PASS (pass_tsan_O0);
 419   NEXT_PASS (pass_sanopt);
 420   NEXT_PASS (pass_cleanup_eh);
 421   NEXT_PASS (pass_lower_resx);
 422   NEXT_PASS (pass_nrv);
 423   NEXT_PASS (pass_gimple_isel);
 424   NEXT_PASS (pass_cleanup_cfg_post_optimizing);
 425   NEXT_PASS (pass_warn_function_noreturn);
 426   NEXT_PASS (pass_warn_access);
 427
 428   NEXT_PASS (pass_expand);
 429
 430   NEXT_PASS (pass_rest_of_compilation);
 431   PUSH_INSERT_PASSES_WITHIN (pass_rest_of_compilation)
 432       NEXT_PASS (pass_instantiate_virtual_regs);
 433       NEXT_PASS (pass_into_cfg_layout_mode);
 434       NEXT_PASS (pass_jump);
 435       NEXT_PASS (pass_lower_subreg);
 436       NEXT_PASS (pass_df_initialize_opt);
 437       NEXT_PASS (pass_cse);
 438       NEXT_PASS (pass_rtl_fwprop);
 439       NEXT_PASS (pass_rtl_cprop);
 440       NEXT_PASS (pass_rtl_pre);
 441       NEXT_PASS (pass_rtl_hoist);
 442       NEXT_PASS (pass_rtl_cprop);
 443       NEXT_PASS (pass_rtl_store_motion);
 444       NEXT_PASS (pass_cse_after_global_opts);
 445       NEXT_PASS (pass_rtl_ifcvt);
 446       NEXT_PASS (pass_reginfo_init);
 447       /* Perform loop optimizations.  It might be better to do them a bit
 448          sooner, but we want the profile feedback to work more
 449          efficiently.  */
 450       NEXT_PASS (pass_loop2);
 451       PUSH_INSERT_PASSES_WITHIN (pass_loop2)
 452           NEXT_PASS (pass_rtl_loop_init);
 453           NEXT_PASS (pass_rtl_move_loop_invariants);
 454           NEXT_PASS (pass_rtl_unroll_loops);
 455           NEXT_PASS (pass_rtl_doloop);
 456           NEXT_PASS (pass_rtl_loop_done);
 457       POP_INSERT_PASSES ()
 458       NEXT_PASS (pass_lower_subreg2);
 459       NEXT_PASS (pass_web);
 460       NEXT_PASS (pass_rtl_cprop);
 461       NEXT_PASS (pass_cse2);
 462       NEXT_PASS (pass_rtl_dse1);
 463       NEXT_PASS (pass_rtl_fwprop_addr);
 464       NEXT_PASS (pass_inc_dec);
 465       NEXT_PASS (pass_initialize_regs);
 466       NEXT_PASS (pass_ud_rtl_dce);
 467       NEXT_PASS (pass_combine);
 468       NEXT_PASS (pass_if_after_combine);
 469       NEXT_PASS (pass_jump_after_combine);
 470       NEXT_PASS (pass_partition_blocks);
 471       NEXT_PASS (pass_outof_cfg_layout_mode);
 472       NEXT_PASS (pass_split_all_insns);
 473       NEXT_PASS (pass_lower_subreg3);
 474       NEXT_PASS (pass_df_initialize_no_opt);
 475       NEXT_PASS (pass_stack_ptr_mod);
 476       NEXT_PASS (pass_mode_switching);
 477       NEXT_PASS (pass_match_asm_constraints);
 478       NEXT_PASS (pass_sms);
 479       NEXT_PASS (pass_live_range_shrinkage);
 480       NEXT_PASS (pass_sched);
 481       NEXT_PASS (pass_early_remat);
 482       NEXT_PASS (pass_ira);
 483       NEXT_PASS (pass_reload);
 484       NEXT_PASS (pass_postreload);
 485       PUSH_INSERT_PASSES_WITHIN (pass_postreload)
 486           NEXT_PASS (pass_postreload_cse);
 487           NEXT_PASS (pass_gcse2);
 488           NEXT_PASS (pass_split_after_reload);
 489           NEXT_PASS (pass_ree);
 490           NEXT_PASS (pass_compare_elim_after_reload);
 491           NEXT_PASS (pass_thread_prologue_and_epilogue);
 492           NEXT_PASS (pass_rtl_dse2);
 493           NEXT_PASS (pass_stack_adjustments);
 494           NEXT_PASS (pass_jump2);
 495           NEXT_PASS (pass_duplicate_computed_gotos);
 496           NEXT_PASS (pass_sched_fusion);
 497           NEXT_PASS (pass_peephole2);
 498           NEXT_PASS (pass_if_after_reload);
 499           NEXT_PASS (pass_regrename);
 500           NEXT_PASS (pass_cprop_hardreg);
 501           NEXT_PASS (pass_fast_rtl_dce);
 502           NEXT_PASS (pass_reorder_blocks);
 503           NEXT_PASS (pass_leaf_regs);
 504           NEXT_PASS (pass_split_before_sched2);
 505           NEXT_PASS (pass_sched2);
 506           NEXT_PASS (pass_stack_regs);
 507           PUSH_INSERT_PASSES_WITHIN (pass_stack_regs)
 508               NEXT_PASS (pass_split_before_regstack);
 509               NEXT_PASS (pass_stack_regs_run);
 510           POP_INSERT_PASSES ()
 511       POP_INSERT_PASSES ()
 512       NEXT_PASS (pass_late_compilation);
 513       PUSH_INSERT_PASSES_WITHIN (pass_late_compilation)
 514           NEXT_PASS (pass_zero_call_used_regs);
 515           NEXT_PASS (pass_compute_alignments);
 516           NEXT_PASS (pass_variable_tracking);
 517           NEXT_PASS (pass_free_cfg);
 518           NEXT_PASS (pass_machine_reorg);
 519           NEXT_PASS (pass_cleanup_barriers);
 520           NEXT_PASS (pass_delay_slots);
 521           NEXT_PASS (pass_split_for_shorten_branches);
 522           NEXT_PASS (pass_convert_to_eh_region_ranges);
 523           NEXT_PASS (pass_shorten_branches);
 524           NEXT_PASS (pass_set_nothrow_function_flags);
 525           NEXT_PASS (pass_dwarf2_frame);
 526           NEXT_PASS (pass_final);
 527       POP_INSERT_PASSES ()
 528       NEXT_PASS (pass_df_finish);
 529   POP_INSERT_PASSES ()
 530   NEXT_PASS (pass_clean_state);
 531   TERMINATE_PASS_LIST (all_passes)