gcc/passes.def

   1 /* Description of pass structure
   2    Copyright (C) 1987-2016 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_build_cgraph_edges);
  46   TERMINATE_PASS_LIST (all_lowering_passes)
  47
  48   /* Interprocedural optimization passes.  */
  49   INSERT_PASSES_AFTER (all_small_ipa_passes)
  50   NEXT_PASS (pass_ipa_free_lang_data);
  51   NEXT_PASS (pass_ipa_function_and_variable_visibility);
  52   NEXT_PASS (pass_ipa_chkp_versioning);
  53   NEXT_PASS (pass_ipa_chkp_early_produce_thunks);
  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   POP_INSERT_PASSES ()
  63
  64   NEXT_PASS (pass_chkp_instrumentation_passes);
  65   PUSH_INSERT_PASSES_WITHIN (pass_chkp_instrumentation_passes)
  66       NEXT_PASS (pass_fixup_cfg);
  67       NEXT_PASS (pass_chkp);
  68       NEXT_PASS (pass_rebuild_cgraph_edges);
  69   POP_INSERT_PASSES ()
  70
  71   NEXT_PASS (pass_local_optimization_passes);
  72   PUSH_INSERT_PASSES_WITHIN (pass_local_optimization_passes)
  73       NEXT_PASS (pass_fixup_cfg);
  74       NEXT_PASS (pass_rebuild_cgraph_edges);
  75       NEXT_PASS (pass_inline_parameters);
  76       NEXT_PASS (pass_early_inline);
  77       NEXT_PASS (pass_all_early_optimizations);
  78       PUSH_INSERT_PASSES_WITHIN (pass_all_early_optimizations)
  79           NEXT_PASS (pass_remove_cgraph_callee_edges);
  80           NEXT_PASS (pass_object_sizes, true /* insert_min_max_p */);
  81           /* Don't record nonzero bits before IPA to avoid
  82              using too much memory.  */
  83           NEXT_PASS (pass_ccp, false /* nonzero_p */);
  84           /* After CCP we rewrite no longer addressed locals into SSA
  85              form if possible.  */
  86           NEXT_PASS (pass_forwprop);
  87           NEXT_PASS (pass_early_thread_jumps);
  88           NEXT_PASS (pass_sra_early);
  89           /* pass_build_ealias is a dummy pass that ensures that we
  90              execute TODO_rebuild_alias at this point.  */
  91           NEXT_PASS (pass_build_ealias);
  92           NEXT_PASS (pass_fre);
  93           NEXT_PASS (pass_merge_phi);
  94           NEXT_PASS (pass_dse);
  95           NEXT_PASS (pass_cd_dce);
  96           NEXT_PASS (pass_early_ipa_sra);
  97           NEXT_PASS (pass_tail_recursion);
  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       POP_INSERT_PASSES ()
 107       NEXT_PASS (pass_release_ssa_names);
 108       NEXT_PASS (pass_rebuild_cgraph_edges);
 109       NEXT_PASS (pass_inline_parameters);
 110   POP_INSERT_PASSES ()
 111
 112   NEXT_PASS (pass_ipa_oacc);
 113   PUSH_INSERT_PASSES_WITHIN (pass_ipa_oacc)
 114       NEXT_PASS (pass_ipa_pta);
 115       /* Pass group that runs when the function is an offloaded function
 116          containing oacc kernels loops.  */
 117       NEXT_PASS (pass_ipa_oacc_kernels);
 118       PUSH_INSERT_PASSES_WITHIN (pass_ipa_oacc_kernels)
 119           NEXT_PASS (pass_oacc_kernels);
 120           PUSH_INSERT_PASSES_WITHIN (pass_oacc_kernels)
 121               NEXT_PASS (pass_ch);
 122               NEXT_PASS (pass_fre);
 123               /* We use pass_lim to rewrite in-memory iteration and reduction
 124                  variable accesses in loops into local variables accesses.  */
 125               NEXT_PASS (pass_lim);
 126               NEXT_PASS (pass_dominator, false /* may_peel_loop_headers_p */);
 127               NEXT_PASS (pass_dce);
 128               NEXT_PASS (pass_parallelize_loops, true /* oacc_kernels_p */);
 129               NEXT_PASS (pass_expand_omp_ssa);
 130               NEXT_PASS (pass_rebuild_cgraph_edges);
 131           POP_INSERT_PASSES ()
 132       POP_INSERT_PASSES ()
 133   POP_INSERT_PASSES ()
 134
 135   NEXT_PASS (pass_ipa_chkp_produce_thunks);
 136   NEXT_PASS (pass_ipa_auto_profile);
 137   NEXT_PASS (pass_ipa_free_inline_summary);
 138   NEXT_PASS (pass_ipa_tree_profile);
 139   PUSH_INSERT_PASSES_WITHIN (pass_ipa_tree_profile)
 140       NEXT_PASS (pass_feedback_split_functions);
 141   POP_INSERT_PASSES ()
 142   NEXT_PASS (pass_ipa_increase_alignment);
 143   NEXT_PASS (pass_ipa_tm);
 144   NEXT_PASS (pass_ipa_lower_emutls);
 145   TERMINATE_PASS_LIST (all_small_ipa_passes)
 146
 147   INSERT_PASSES_AFTER (all_regular_ipa_passes)
 148   NEXT_PASS (pass_ipa_whole_program_visibility);
 149   NEXT_PASS (pass_ipa_profile);
 150   NEXT_PASS (pass_ipa_icf);
 151   NEXT_PASS (pass_ipa_devirt);
 152   NEXT_PASS (pass_ipa_cp);
 153   NEXT_PASS (pass_ipa_cdtor_merge);
 154   NEXT_PASS (pass_target_clone);
 155   NEXT_PASS (pass_ipa_hsa);
 156   NEXT_PASS (pass_ipa_inline);
 157   NEXT_PASS (pass_ipa_pure_const);
 158   NEXT_PASS (pass_ipa_reference);
 159   /* This pass needs to be scheduled after any IP code duplication.   */
 160   NEXT_PASS (pass_ipa_single_use);
 161   /* Comdat privatization come last, as direct references to comdat local
 162      symbols are not allowed outside of the comdat group.  Privatizing early
 163      would result in missed optimizations due to this restriction.  */
 164   NEXT_PASS (pass_ipa_comdats);
 165   TERMINATE_PASS_LIST (all_regular_ipa_passes)
 166
 167   /* Simple IPA passes executed after the regular passes.  In WHOPR mode the
 168      passes are executed after partitioning and thus see just parts of the
 169      compiled unit.  */
 170   INSERT_PASSES_AFTER (all_late_ipa_passes)
 171   NEXT_PASS (pass_materialize_all_clones);
 172   NEXT_PASS (pass_ipa_pta);
 173   NEXT_PASS (pass_dispatcher_calls);
 174   NEXT_PASS (pass_omp_simd_clone);
 175   TERMINATE_PASS_LIST (all_late_ipa_passes)
 176
 177   /* These passes are run after IPA passes on every function that is being
 178      output to the assembler file.  */
 179   INSERT_PASSES_AFTER (all_passes)
 180   NEXT_PASS (pass_fixup_cfg);
 181   NEXT_PASS (pass_lower_eh_dispatch);
 182   NEXT_PASS (pass_oacc_device_lower);
 183   NEXT_PASS (pass_omp_target_link);
 184   NEXT_PASS (pass_all_optimizations);
 185   PUSH_INSERT_PASSES_WITHIN (pass_all_optimizations)
 186       NEXT_PASS (pass_remove_cgraph_callee_edges);
 187       /* Initial scalar cleanups before alias computation.
 188          They ensure memory accesses are not indirect wherever possible.  */
 189       NEXT_PASS (pass_strip_predict_hints);
 190       NEXT_PASS (pass_ccp, true /* nonzero_p */);
 191       /* After CCP we rewrite no longer addressed locals into SSA
 192          form if possible.  */
 193       NEXT_PASS (pass_complete_unrolli);
 194       NEXT_PASS (pass_backprop);
 195       NEXT_PASS (pass_phiprop);
 196       NEXT_PASS (pass_forwprop);
 197       NEXT_PASS (pass_object_sizes, false /* insert_min_max_p */);
 198       /* pass_build_alias is a dummy pass that ensures that we
 199          execute TODO_rebuild_alias at this point.  */
 200       NEXT_PASS (pass_build_alias);
 201       NEXT_PASS (pass_return_slot);
 202       NEXT_PASS (pass_fre);
 203       NEXT_PASS (pass_merge_phi);
 204       NEXT_PASS (pass_thread_jumps);
 205       NEXT_PASS (pass_vrp, true /* warn_array_bounds_p */);
 206       NEXT_PASS (pass_chkp_opt);
 207       NEXT_PASS (pass_dce);
 208       NEXT_PASS (pass_stdarg);
 209       NEXT_PASS (pass_call_cdce);
 210       NEXT_PASS (pass_cselim);
 211       NEXT_PASS (pass_copy_prop);
 212       NEXT_PASS (pass_tree_ifcombine);
 213       NEXT_PASS (pass_merge_phi);
 214       NEXT_PASS (pass_phiopt);
 215       NEXT_PASS (pass_tail_recursion);
 216       NEXT_PASS (pass_ch);
 217       NEXT_PASS (pass_lower_complex);
 218       NEXT_PASS (pass_sra);
 219       /* The dom pass will also resolve all __builtin_constant_p calls
 220          that are still there to 0.  This has to be done after some
 221          propagations have already run, but before some more dead code
 222          is removed, and this place fits nicely.  Remember this when
 223          trying to move or duplicate pass_dominator somewhere earlier.  */
 224       NEXT_PASS (pass_thread_jumps);
 225       NEXT_PASS (pass_dominator, true /* may_peel_loop_headers_p */);
 226       /* At this point the majority of const/copy propagations
 227          are exposed.  Go ahead and identify paths that should never
 228          be executed in a conforming program and isolate those paths.
 229
 230          This will expose more degenerate PHIs in the main path and
 231          expose more PRE/DOM optimization opportunities.  */
 232       NEXT_PASS (pass_isolate_erroneous_paths);
 233       /* The only const/copy propagation opportunities left after
 234          DOM and erroneous path isolation should be due to degenerate PHI nodes.
 235          So rather than run the full propagators, run a specialized pass which
 236          only examines PHIs to discover const/copy propagation
 237          opportunities.  */
 238       NEXT_PASS (pass_phi_only_cprop);
 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);
 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_split_crit_edges);
 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           NEXT_PASS (pass_tree_loop_init);
 266           NEXT_PASS (pass_tree_unswitch);
 267           NEXT_PASS (pass_scev_cprop);
 268           NEXT_PASS (pass_record_bounds);
 269           NEXT_PASS (pass_loop_distribution);
 270           NEXT_PASS (pass_copy_prop);
 271           NEXT_PASS (pass_graphite);
 272           PUSH_INSERT_PASSES_WITHIN (pass_graphite)
 273               NEXT_PASS (pass_graphite_transforms);
 274               NEXT_PASS (pass_lim);
 275               NEXT_PASS (pass_copy_prop);
 276               NEXT_PASS (pass_dce);
 277           POP_INSERT_PASSES ()
 278           NEXT_PASS (pass_iv_canon);
 279           NEXT_PASS (pass_parallelize_loops, false /* oacc_kernels_p */);
 280           NEXT_PASS (pass_expand_omp_ssa);
 281           NEXT_PASS (pass_ch_vect);
 282           NEXT_PASS (pass_if_conversion);
 283           /* pass_vectorize must immediately follow pass_if_conversion.
 284              Please do not add any other passes in between.  */
 285           NEXT_PASS (pass_vectorize);
 286           PUSH_INSERT_PASSES_WITHIN (pass_vectorize)
 287               NEXT_PASS (pass_dce);
 288           POP_INSERT_PASSES ()
 289           NEXT_PASS (pass_predcom);
 290           NEXT_PASS (pass_complete_unroll);
 291           NEXT_PASS (pass_slp_vectorize);
 292           NEXT_PASS (pass_loop_prefetch);
 293           /* Run IVOPTs after the last pass that uses data-reference analysis
 294              as that doesn't handle TARGET_MEM_REFs.  */
 295           NEXT_PASS (pass_iv_optimize);
 296           NEXT_PASS (pass_lim);
 297           NEXT_PASS (pass_tree_loop_done);
 298       POP_INSERT_PASSES ()
 299       /* Pass group that runs when pass_tree_loop is disabled or there
 300          are no loops in the function.  */
 301       NEXT_PASS (pass_tree_no_loop);
 302       PUSH_INSERT_PASSES_WITHIN (pass_tree_no_loop)
 303           NEXT_PASS (pass_slp_vectorize);
 304       POP_INSERT_PASSES ()
 305       NEXT_PASS (pass_simduid_cleanup);
 306       NEXT_PASS (pass_lower_vector_ssa);
 307       NEXT_PASS (pass_cse_reciprocals);
 308       NEXT_PASS (pass_reassoc, false /* insert_powi_p */);
 309       NEXT_PASS (pass_strength_reduction);
 310       NEXT_PASS (pass_split_paths);
 311       NEXT_PASS (pass_tracer);
 312       NEXT_PASS (pass_thread_jumps);
 313       NEXT_PASS (pass_dominator, false /* may_peel_loop_headers_p */);
 314       NEXT_PASS (pass_strlen);
 315       NEXT_PASS (pass_thread_jumps);
 316       NEXT_PASS (pass_vrp, false /* warn_array_bounds_p */);
 317       /* The only const/copy propagation opportunities left after
 318          DOM and VRP should be due to degenerate PHI nodes.  So rather than
 319          run the full propagators, run a specialized pass which
 320          only examines PHIs to discover const/copy propagation
 321          opportunities.  */
 322       NEXT_PASS (pass_phi_only_cprop);
 323       NEXT_PASS (pass_dse);
 324       NEXT_PASS (pass_cd_dce);
 325       NEXT_PASS (pass_forwprop);
 326       NEXT_PASS (pass_phiopt);
 327       NEXT_PASS (pass_fold_builtins);
 328       NEXT_PASS (pass_optimize_widening_mul);
 329       NEXT_PASS (pass_tail_calls);
 330       /* If DCE is not run before checking for uninitialized uses,
 331          we may get false warnings (e.g., testsuite/gcc.dg/uninit-5.c).
 332          However, this also causes us to misdiagnose cases that should be
 333          real warnings (e.g., testsuite/gcc.dg/pr18501.c).  */
 334       NEXT_PASS (pass_dce);
 335       /* Split critical edges before late uninit warning to reduce the
 336          number of false positives from it.  */
 337       NEXT_PASS (pass_split_crit_edges);
 338       NEXT_PASS (pass_late_warn_uninitialized);
 339       NEXT_PASS (pass_uncprop);
 340       NEXT_PASS (pass_local_pure_const);
 341   POP_INSERT_PASSES ()
 342   NEXT_PASS (pass_all_optimizations_g);
 343   PUSH_INSERT_PASSES_WITHIN (pass_all_optimizations_g)
 344       NEXT_PASS (pass_remove_cgraph_callee_edges);
 345       NEXT_PASS (pass_strip_predict_hints);
 346       /* Lower remaining pieces of GIMPLE.  */
 347       NEXT_PASS (pass_lower_complex);
 348       NEXT_PASS (pass_lower_vector_ssa);
 349       /* Perform simple scalar cleanup which is constant/copy propagation.  */
 350       NEXT_PASS (pass_ccp, true /* nonzero_p */);
 351       NEXT_PASS (pass_object_sizes);
 352       /* Fold remaining builtins.  */
 353       NEXT_PASS (pass_fold_builtins);
 354       /* Copy propagation also copy-propagates constants, this is necessary
 355          to forward object-size and builtin folding results properly.  */
 356       NEXT_PASS (pass_copy_prop);
 357       NEXT_PASS (pass_dce);
 358       NEXT_PASS (pass_sancov);
 359       NEXT_PASS (pass_asan);
 360       NEXT_PASS (pass_tsan);
 361       /* ???  We do want some kind of loop invariant motion, but we possibly
 362          need to adjust LIM to be more friendly towards preserving accurate
 363          debug information here.  */
 364       /* Split critical edges before late uninit warning to reduce the
 365          number of false positives from it.  */
 366       NEXT_PASS (pass_split_crit_edges);
 367       NEXT_PASS (pass_late_warn_uninitialized);
 368       NEXT_PASS (pass_uncprop);
 369       NEXT_PASS (pass_local_pure_const);
 370   POP_INSERT_PASSES ()
 371   NEXT_PASS (pass_tm_init);
 372   PUSH_INSERT_PASSES_WITHIN (pass_tm_init)
 373       NEXT_PASS (pass_tm_mark);
 374       NEXT_PASS (pass_tm_memopt);
 375       NEXT_PASS (pass_tm_edges);
 376   POP_INSERT_PASSES ()
 377   NEXT_PASS (pass_simduid_cleanup);
 378   NEXT_PASS (pass_vtable_verify);
 379   NEXT_PASS (pass_lower_vaarg);
 380   NEXT_PASS (pass_lower_vector);
 381   NEXT_PASS (pass_lower_complex_O0);
 382   NEXT_PASS (pass_sancov_O0);
 383   NEXT_PASS (pass_asan_O0);
 384   NEXT_PASS (pass_tsan_O0);
 385   NEXT_PASS (pass_sanopt);
 386   NEXT_PASS (pass_cleanup_eh);
 387   NEXT_PASS (pass_lower_resx);
 388   NEXT_PASS (pass_nrv);
 389   NEXT_PASS (pass_cleanup_cfg_post_optimizing);
 390   NEXT_PASS (pass_warn_function_noreturn);
 391   NEXT_PASS (pass_gen_hsail);
 392
 393   NEXT_PASS (pass_expand);
 394
 395   NEXT_PASS (pass_rest_of_compilation);
 396   PUSH_INSERT_PASSES_WITHIN (pass_rest_of_compilation)
 397       NEXT_PASS (pass_instantiate_virtual_regs);
 398       NEXT_PASS (pass_into_cfg_layout_mode);
 399       NEXT_PASS (pass_jump);
 400       NEXT_PASS (pass_lower_subreg);
 401       NEXT_PASS (pass_df_initialize_opt);
 402       NEXT_PASS (pass_cse);
 403       NEXT_PASS (pass_rtl_fwprop);
 404       NEXT_PASS (pass_rtl_cprop);
 405       NEXT_PASS (pass_rtl_pre);
 406       NEXT_PASS (pass_rtl_hoist);
 407       NEXT_PASS (pass_rtl_cprop);
 408       NEXT_PASS (pass_rtl_store_motion);
 409       NEXT_PASS (pass_cse_after_global_opts);
 410       NEXT_PASS (pass_rtl_ifcvt);
 411       NEXT_PASS (pass_reginfo_init);
 412       /* Perform loop optimizations.  It might be better to do them a bit
 413          sooner, but we want the profile feedback to work more
 414          efficiently.  */
 415       NEXT_PASS (pass_loop2);
 416       PUSH_INSERT_PASSES_WITHIN (pass_loop2)
 417           NEXT_PASS (pass_rtl_loop_init);
 418           NEXT_PASS (pass_rtl_move_loop_invariants);
 419           NEXT_PASS (pass_rtl_unroll_loops);
 420           NEXT_PASS (pass_rtl_doloop);
 421           NEXT_PASS (pass_rtl_loop_done);
 422       POP_INSERT_PASSES ()
 423       NEXT_PASS (pass_web);
 424       NEXT_PASS (pass_rtl_cprop);
 425       NEXT_PASS (pass_cse2);
 426       NEXT_PASS (pass_rtl_dse1);
 427       NEXT_PASS (pass_rtl_fwprop_addr);
 428       NEXT_PASS (pass_inc_dec);
 429       NEXT_PASS (pass_initialize_regs);
 430       NEXT_PASS (pass_ud_rtl_dce);
 431       NEXT_PASS (pass_combine);
 432       NEXT_PASS (pass_if_after_combine);
 433       NEXT_PASS (pass_partition_blocks);
 434       NEXT_PASS (pass_outof_cfg_layout_mode);
 435       NEXT_PASS (pass_split_all_insns);
 436       NEXT_PASS (pass_lower_subreg2);
 437       NEXT_PASS (pass_df_initialize_no_opt);
 438       NEXT_PASS (pass_stack_ptr_mod);
 439       NEXT_PASS (pass_mode_switching);
 440       NEXT_PASS (pass_match_asm_constraints);
 441       NEXT_PASS (pass_sms);
 442       NEXT_PASS (pass_live_range_shrinkage);
 443       NEXT_PASS (pass_sched);
 444       NEXT_PASS (pass_ira);
 445       NEXT_PASS (pass_reload);
 446       NEXT_PASS (pass_postreload);
 447       PUSH_INSERT_PASSES_WITHIN (pass_postreload)
 448           NEXT_PASS (pass_postreload_cse);
 449           NEXT_PASS (pass_gcse2);
 450           NEXT_PASS (pass_split_after_reload);
 451           NEXT_PASS (pass_ree);
 452           NEXT_PASS (pass_compare_elim_after_reload);
 453           NEXT_PASS (pass_branch_target_load_optimize1);
 454           NEXT_PASS (pass_thread_prologue_and_epilogue);
 455           NEXT_PASS (pass_rtl_dse2);
 456           NEXT_PASS (pass_stack_adjustments);
 457           NEXT_PASS (pass_jump2);
 458           NEXT_PASS (pass_duplicate_computed_gotos);
 459           NEXT_PASS (pass_sched_fusion);
 460           NEXT_PASS (pass_peephole2);
 461           NEXT_PASS (pass_if_after_reload);
 462           NEXT_PASS (pass_regrename);
 463           NEXT_PASS (pass_cprop_hardreg);
 464           NEXT_PASS (pass_fast_rtl_dce);
 465           NEXT_PASS (pass_reorder_blocks);
 466           NEXT_PASS (pass_branch_target_load_optimize2);
 467           NEXT_PASS (pass_leaf_regs);
 468           NEXT_PASS (pass_split_before_sched2);
 469           NEXT_PASS (pass_sched2);
 470           NEXT_PASS (pass_stack_regs);
 471           PUSH_INSERT_PASSES_WITHIN (pass_stack_regs)
 472               NEXT_PASS (pass_split_before_regstack);
 473               NEXT_PASS (pass_stack_regs_run);
 474           POP_INSERT_PASSES ()
 475       POP_INSERT_PASSES ()
 476       NEXT_PASS (pass_late_compilation);
 477       PUSH_INSERT_PASSES_WITHIN (pass_late_compilation)
 478           NEXT_PASS (pass_compute_alignments);
 479           NEXT_PASS (pass_variable_tracking);
 480           NEXT_PASS (pass_free_cfg);
 481           NEXT_PASS (pass_machine_reorg);
 482           NEXT_PASS (pass_cleanup_barriers);
 483           NEXT_PASS (pass_delay_slots);
 484           NEXT_PASS (pass_split_for_shorten_branches);
 485           NEXT_PASS (pass_convert_to_eh_region_ranges);
 486           NEXT_PASS (pass_shorten_branches);
 487           NEXT_PASS (pass_set_nothrow_function_flags);
 488           NEXT_PASS (pass_dwarf2_frame);
 489           NEXT_PASS (pass_final);
 490       POP_INSERT_PASSES ()
 491       NEXT_PASS (pass_df_finish);
 492   POP_INSERT_PASSES ()
 493   NEXT_PASS (pass_clean_state);
 494   TERMINATE_PASS_LIST (all_passes)