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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [gcc/] [passes.c] - Rev 20
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/* Top level of GCC compilers (cc1, cc1plus, etc.) Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GCC; see the file COPYING. If not, write to the Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /* This is the top level of cc1/c++. It parses command args, opens files, invokes the various passes in the proper order, and counts the time used by each. Error messages and low-level interface to malloc also handled here. */ #include "config.h" #undef FLOAT /* This is for hpux. They should change hpux. */ #undef FFS /* Some systems define this in param.h. */ #include "system.h" #include "coretypes.h" #include "tm.h" #include <signal.h> #ifdef HAVE_SYS_RESOURCE_H # include <sys/resource.h> #endif #ifdef HAVE_SYS_TIMES_H # include <sys/times.h> #endif #include "line-map.h" #include "input.h" #include "tree.h" #include "rtl.h" #include "tm_p.h" #include "flags.h" #include "insn-attr.h" #include "insn-config.h" #include "insn-flags.h" #include "hard-reg-set.h" #include "recog.h" #include "output.h" #include "except.h" #include "function.h" #include "toplev.h" #include "expr.h" #include "basic-block.h" #include "intl.h" #include "ggc.h" #include "graph.h" #include "regs.h" #include "timevar.h" #include "diagnostic.h" #include "params.h" #include "reload.h" #include "dwarf2asm.h" #include "integrate.h" #include "real.h" #include "debug.h" #include "target.h" #include "langhooks.h" #include "cfglayout.h" #include "cfgloop.h" #include "hosthooks.h" #include "cgraph.h" #include "opts.h" #include "coverage.h" #include "value-prof.h" #include "tree-inline.h" #include "tree-flow.h" #include "tree-pass.h" #include "tree-dump.h" #if defined (DWARF2_UNWIND_INFO) || defined (DWARF2_DEBUGGING_INFO) #include "dwarf2out.h" #endif #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) #include "dbxout.h" #endif #ifdef SDB_DEBUGGING_INFO #include "sdbout.h" #endif #ifdef XCOFF_DEBUGGING_INFO #include "xcoffout.h" /* Needed for external data declarations for e.g. AIX 4.x. */ #endif /* Global variables used to communicate with passes. */ int dump_flags; bool in_gimple_form; /* This is called from various places for FUNCTION_DECL, VAR_DECL, and TYPE_DECL nodes. This does nothing for local (non-static) variables, unless the variable is a register variable with DECL_ASSEMBLER_NAME set. In that case, or if the variable is not an automatic, it sets up the RTL and outputs any assembler code (label definition, storage allocation and initialization). DECL is the declaration. TOP_LEVEL is nonzero if this declaration is not within a function. */ void rest_of_decl_compilation (tree decl, int top_level, int at_end) { /* We deferred calling assemble_alias so that we could collect other attributes such as visibility. Emit the alias now. */ { tree alias; alias = lookup_attribute ("alias", DECL_ATTRIBUTES (decl)); if (alias) { alias = TREE_VALUE (TREE_VALUE (alias)); alias = get_identifier (TREE_STRING_POINTER (alias)); assemble_alias (decl, alias); } } /* Can't defer this, because it needs to happen before any later function definitions are processed. */ if (DECL_ASSEMBLER_NAME_SET_P (decl) && DECL_REGISTER (decl)) make_decl_rtl (decl); /* Forward declarations for nested functions are not "external", but we need to treat them as if they were. */ if (TREE_STATIC (decl) || DECL_EXTERNAL (decl) || TREE_CODE (decl) == FUNCTION_DECL) { timevar_push (TV_VARCONST); /* Don't output anything when a tentative file-scope definition is seen. But at end of compilation, do output code for them. We do output all variables when unit-at-a-time is active and rely on callgraph code to defer them except for forward declarations (see gcc.c-torture/compile/920624-1.c) */ if ((at_end || !DECL_DEFER_OUTPUT (decl) || DECL_INITIAL (decl)) && !DECL_EXTERNAL (decl)) { if (TREE_CODE (decl) != FUNCTION_DECL) cgraph_varpool_finalize_decl (decl); else assemble_variable (decl, top_level, at_end, 0); } #ifdef ASM_FINISH_DECLARE_OBJECT if (decl == last_assemble_variable_decl) { ASM_FINISH_DECLARE_OBJECT (asm_out_file, decl, top_level, at_end); } #endif timevar_pop (TV_VARCONST); } else if (TREE_CODE (decl) == TYPE_DECL /* Like in rest_of_type_compilation, avoid confusing the debug information machinery when there are errors. */ && !(sorrycount || errorcount)) { timevar_push (TV_SYMOUT); debug_hooks->type_decl (decl, !top_level); timevar_pop (TV_SYMOUT); } /* Let cgraph know about the existence of variables. */ if (TREE_CODE (decl) == VAR_DECL && !DECL_EXTERNAL (decl)) cgraph_varpool_node (decl); } /* Called after finishing a record, union or enumeral type. */ void rest_of_type_compilation (tree type, int toplev) { /* Avoid confusing the debug information machinery when there are errors. */ if (errorcount != 0 || sorrycount != 0) return; timevar_push (TV_SYMOUT); debug_hooks->type_decl (TYPE_STUB_DECL (type), !toplev); timevar_pop (TV_SYMOUT); } void finish_optimization_passes (void) { enum tree_dump_index i; struct dump_file_info *dfi; char *name; timevar_push (TV_DUMP); if (profile_arc_flag || flag_test_coverage || flag_branch_probabilities) { dump_file = dump_begin (pass_branch_prob.static_pass_number, NULL); end_branch_prob (); if (dump_file) dump_end (pass_branch_prob.static_pass_number, dump_file); } if (optimize > 0) { dump_file = dump_begin (pass_combine.static_pass_number, NULL); if (dump_file) { dump_combine_total_stats (dump_file); dump_end (pass_combine.static_pass_number, dump_file); } } /* Do whatever is necessary to finish printing the graphs. */ if (graph_dump_format != no_graph) for (i = TDI_end; (dfi = get_dump_file_info (i)) != NULL; ++i) if (dump_initialized_p (i) && (dfi->flags & TDF_GRAPH) != 0 && (name = get_dump_file_name (i)) != NULL) { finish_graph_dump_file (name); free (name); } timevar_pop (TV_DUMP); } static bool gate_rest_of_compilation (void) { /* Early return if there were errors. We can run afoul of our consistency checks, and there's not really much point in fixing them. */ return !(rtl_dump_and_exit || flag_syntax_only || errorcount || sorrycount); } struct tree_opt_pass pass_rest_of_compilation = { NULL, /* name */ gate_rest_of_compilation, /* gate */ NULL, /* execute */ NULL, /* sub */ NULL, /* next */ 0, /* static_pass_number */ TV_REST_OF_COMPILATION, /* tv_id */ PROP_rtl, /* properties_required */ 0, /* properties_provided */ 0, /* properties_destroyed */ 0, /* todo_flags_start */ TODO_ggc_collect, /* todo_flags_finish */ 0 /* letter */ }; static bool gate_postreload (void) { return reload_completed; } struct tree_opt_pass pass_postreload = { NULL, /* name */ gate_postreload, /* gate */ NULL, /* execute */ NULL, /* sub */ NULL, /* next */ 0, /* static_pass_number */ 0, /* tv_id */ PROP_rtl, /* properties_required */ 0, /* properties_provided */ 0, /* properties_destroyed */ 0, /* todo_flags_start */ TODO_ggc_collect, /* todo_flags_finish */ 0 /* letter */ }; /* The root of the compilation pass tree, once constructed. */ struct tree_opt_pass *all_passes, *all_ipa_passes, *all_lowering_passes; /* Iterate over the pass tree allocating dump file numbers. We want to do this depth first, and independent of whether the pass is enabled or not. */ static void register_one_dump_file (struct tree_opt_pass *pass, bool ipa, int n) { char *dot_name, *flag_name, *glob_name; char num[10]; /* See below in next_pass_1. */ num[0] = '\0'; if (pass->static_pass_number != -1) sprintf (num, "%d", ((int) pass->static_pass_number < 0 ? 1 : pass->static_pass_number)); dot_name = concat (".", pass->name, num, NULL); if (ipa) { flag_name = concat ("ipa-", pass->name, num, NULL); glob_name = concat ("ipa-", pass->name, NULL); /* First IPA dump is cgraph that is dumped via separate channels. */ pass->static_pass_number = dump_register (dot_name, flag_name, glob_name, TDF_IPA, n + 1, 0); } else if (pass->properties_provided & PROP_trees) { flag_name = concat ("tree-", pass->name, num, NULL); glob_name = concat ("tree-", pass->name, NULL); pass->static_pass_number = dump_register (dot_name, flag_name, glob_name, TDF_TREE, n + TDI_tree_all, 0); } else { flag_name = concat ("rtl-", pass->name, num, NULL); glob_name = concat ("rtl-", pass->name, NULL); pass->static_pass_number = dump_register (dot_name, flag_name, glob_name, TDF_RTL, n, pass->letter); } } static int register_dump_files (struct tree_opt_pass *pass, bool ipa, int properties) { static int n = 0; do { int new_properties; int pass_number; pass->properties_required = properties; new_properties = (properties | pass->properties_provided) & ~pass->properties_destroyed; /* Reset the counter when we reach RTL-based passes. */ if ((new_properties ^ pass->properties_required) & PROP_rtl) n = 0; pass_number = n; if (pass->name) n++; if (pass->sub) new_properties = register_dump_files (pass->sub, false, new_properties); /* If we have a gate, combine the properties that we could have with and without the pass being examined. */ if (pass->gate) properties &= new_properties; else properties = new_properties; pass->properties_provided = properties; if (pass->name) register_one_dump_file (pass, ipa, pass_number); pass = pass->next; } while (pass); return properties; } /* Add a pass to the pass list. Duplicate the pass if it's already in the list. */ static struct tree_opt_pass ** next_pass_1 (struct tree_opt_pass **list, struct tree_opt_pass *pass) { /* A nonzero static_pass_number indicates that the pass is already in the list. */ if (pass->static_pass_number) { struct tree_opt_pass *new; new = xmalloc (sizeof (*new)); memcpy (new, pass, sizeof (*new)); /* Indicate to register_dump_files that this pass has duplicates, and so it should rename the dump file. The first instance will be -1, and be number of duplicates = -static_pass_number - 1. Subsequent instances will be > 0 and just the duplicate number. */ if (pass->name) { pass->static_pass_number -= 1; new->static_pass_number = -pass->static_pass_number; } *list = new; } else { pass->static_pass_number = -1; *list = pass; } return &(*list)->next; } /* Construct the pass tree. */ void init_optimization_passes (void) { struct tree_opt_pass **p; #define NEXT_PASS(PASS) (p = next_pass_1 (p, &PASS)) /* Interprocedural optimization passes. */ p = &all_ipa_passes; NEXT_PASS (pass_early_ipa_inline); NEXT_PASS (pass_early_local_passes); NEXT_PASS (pass_ipa_cp); NEXT_PASS (pass_ipa_inline); NEXT_PASS (pass_ipa_reference); NEXT_PASS (pass_ipa_pure_const); NEXT_PASS (pass_ipa_type_escape); *p = NULL; /* All passes needed to lower the function into shape optimizers can operate on. These passes are performed before interprocedural passes, unlike rest of local passes (all_passes). */ p = &all_lowering_passes; NEXT_PASS (pass_remove_useless_stmts); NEXT_PASS (pass_mudflap_1); NEXT_PASS (pass_lower_cf); NEXT_PASS (pass_lower_eh); NEXT_PASS (pass_build_cfg); NEXT_PASS (pass_lower_complex_O0); NEXT_PASS (pass_lower_vector); NEXT_PASS (pass_warn_function_return); NEXT_PASS (pass_early_tree_profile); *p = NULL; p = &pass_early_local_passes.sub; NEXT_PASS (pass_tree_profile); NEXT_PASS (pass_cleanup_cfg); NEXT_PASS (pass_rebuild_cgraph_edges); *p = NULL; p = &all_passes; NEXT_PASS (pass_fixup_cfg); NEXT_PASS (pass_init_datastructures); NEXT_PASS (pass_all_optimizations); NEXT_PASS (pass_warn_function_noreturn); NEXT_PASS (pass_mudflap_2); NEXT_PASS (pass_free_datastructures); NEXT_PASS (pass_free_cfg_annotations); NEXT_PASS (pass_expand); NEXT_PASS (pass_rest_of_compilation); NEXT_PASS (pass_clean_state); *p = NULL; p = &pass_all_optimizations.sub; NEXT_PASS (pass_referenced_vars); NEXT_PASS (pass_create_structure_vars); NEXT_PASS (pass_build_ssa); NEXT_PASS (pass_may_alias); NEXT_PASS (pass_return_slot); NEXT_PASS (pass_rename_ssa_copies); NEXT_PASS (pass_early_warn_uninitialized); NEXT_PASS (pass_eliminate_useless_stores); /* Initial scalar cleanups. */ NEXT_PASS (pass_ccp); NEXT_PASS (pass_fre); NEXT_PASS (pass_dce); NEXT_PASS (pass_forwprop); NEXT_PASS (pass_copy_prop); NEXT_PASS (pass_vrp); NEXT_PASS (pass_dce); NEXT_PASS (pass_merge_phi); NEXT_PASS (pass_dominator); /* The only copy propagation opportunities left after DOM should be due to degenerate PHI nodes. So rather than run the full copy propagator, just discover and copy propagate away the degenerate PHI nodes. */ NEXT_PASS (pass_phi_only_copy_prop); NEXT_PASS (pass_phiopt); NEXT_PASS (pass_may_alias); NEXT_PASS (pass_tail_recursion); NEXT_PASS (pass_profile); NEXT_PASS (pass_ch); NEXT_PASS (pass_stdarg); NEXT_PASS (pass_lower_complex); NEXT_PASS (pass_sra); /* FIXME: SRA may generate arbitrary gimple code, exposing new aliased and call-clobbered variables. As mentioned below, pass_may_alias should be a TODO item. */ NEXT_PASS (pass_may_alias); NEXT_PASS (pass_rename_ssa_copies); NEXT_PASS (pass_dominator); /* The only copy propagation opportunities left after DOM should be due to degenerate PHI nodes. So rather than run the full copy propagator, just discover and copy propagate away the degenerate PHI nodes. */ NEXT_PASS (pass_phi_only_copy_prop); NEXT_PASS (pass_dce); NEXT_PASS (pass_dse); NEXT_PASS (pass_may_alias); NEXT_PASS (pass_forwprop); NEXT_PASS (pass_phiopt); NEXT_PASS (pass_object_sizes); NEXT_PASS (pass_store_ccp); NEXT_PASS (pass_store_copy_prop); NEXT_PASS (pass_fold_builtins); /* FIXME: May alias should a TODO but for 4.0.0, we add may_alias right after fold builtins which can create arbitrary GIMPLE. */ NEXT_PASS (pass_may_alias); NEXT_PASS (pass_split_crit_edges); NEXT_PASS (pass_reassoc); NEXT_PASS (pass_pre); NEXT_PASS (pass_sink_code); NEXT_PASS (pass_tree_loop); NEXT_PASS (pass_cse_reciprocals); NEXT_PASS (pass_dominator); /* The only copy propagation opportunities left after DOM should be due to degenerate PHI nodes. So rather than run the full copy propagator, just discover and copy propagate away the degenerate PHI nodes. */ NEXT_PASS (pass_phi_only_copy_prop); NEXT_PASS (pass_cd_dce); /* FIXME: If DCE is not run before checking for uninitialized uses, we may get false warnings (e.g., testsuite/gcc.dg/uninit-5.c). However, this also causes us to misdiagnose cases that should be real warnings (e.g., testsuite/gcc.dg/pr18501.c). To fix the false positives in uninit-5.c, we would have to account for the predicates protecting the set and the use of each variable. Using a representation like Gated Single Assignment may help. */ NEXT_PASS (pass_late_warn_uninitialized); NEXT_PASS (pass_dse); NEXT_PASS (pass_forwprop); NEXT_PASS (pass_phiopt); NEXT_PASS (pass_tail_calls); NEXT_PASS (pass_rename_ssa_copies); NEXT_PASS (pass_uncprop); NEXT_PASS (pass_del_ssa); NEXT_PASS (pass_nrv); NEXT_PASS (pass_remove_useless_vars); NEXT_PASS (pass_mark_used_blocks); NEXT_PASS (pass_cleanup_cfg_post_optimizing); *p = NULL; p = &pass_tree_loop.sub; NEXT_PASS (pass_tree_loop_init); NEXT_PASS (pass_copy_prop); NEXT_PASS (pass_lim); NEXT_PASS (pass_tree_unswitch); NEXT_PASS (pass_scev_cprop); NEXT_PASS (pass_empty_loop); NEXT_PASS (pass_record_bounds); NEXT_PASS (pass_linear_transform); NEXT_PASS (pass_iv_canon); NEXT_PASS (pass_if_conversion); NEXT_PASS (pass_vectorize); /* NEXT_PASS (pass_may_alias) cannot be done again because the vectorizer creates alias relations that are not supported by pass_may_alias. */ NEXT_PASS (pass_complete_unroll); NEXT_PASS (pass_iv_optimize); NEXT_PASS (pass_tree_loop_done); *p = NULL; p = &pass_vectorize.sub; NEXT_PASS (pass_lower_vector_ssa); NEXT_PASS (pass_dce_loop); *p = NULL; p = &pass_loop2.sub; NEXT_PASS (pass_rtl_loop_init); NEXT_PASS (pass_rtl_move_loop_invariants); NEXT_PASS (pass_rtl_unswitch); NEXT_PASS (pass_rtl_unroll_and_peel_loops); NEXT_PASS (pass_rtl_doloop); NEXT_PASS (pass_rtl_loop_done); *p = NULL; p = &pass_rest_of_compilation.sub; NEXT_PASS (pass_remove_unnecessary_notes); NEXT_PASS (pass_init_function); NEXT_PASS (pass_jump); NEXT_PASS (pass_insn_locators_initialize); NEXT_PASS (pass_rtl_eh); NEXT_PASS (pass_initial_value_sets); NEXT_PASS (pass_unshare_all_rtl); NEXT_PASS (pass_instantiate_virtual_regs); NEXT_PASS (pass_jump2); NEXT_PASS (pass_cse); NEXT_PASS (pass_gcse); NEXT_PASS (pass_loop_optimize); NEXT_PASS (pass_jump_bypass); NEXT_PASS (pass_cfg); NEXT_PASS (pass_branch_prob); NEXT_PASS (pass_rtl_ifcvt); NEXT_PASS (pass_tracer); /* Perform loop optimizations. It might be better to do them a bit sooner, but we want the profile feedback to work more efficiently. */ NEXT_PASS (pass_loop2); NEXT_PASS (pass_web); NEXT_PASS (pass_cse2); NEXT_PASS (pass_life); NEXT_PASS (pass_combine); NEXT_PASS (pass_if_after_combine); NEXT_PASS (pass_partition_blocks); NEXT_PASS (pass_regmove); NEXT_PASS (pass_split_all_insns); NEXT_PASS (pass_mode_switching); NEXT_PASS (pass_recompute_reg_usage); NEXT_PASS (pass_sms); NEXT_PASS (pass_sched); NEXT_PASS (pass_local_alloc); NEXT_PASS (pass_global_alloc); NEXT_PASS (pass_postreload); *p = NULL; p = &pass_postreload.sub; NEXT_PASS (pass_postreload_cse); NEXT_PASS (pass_gcse2); NEXT_PASS (pass_flow2); NEXT_PASS (pass_stack_adjustments); NEXT_PASS (pass_peephole2); NEXT_PASS (pass_if_after_reload); NEXT_PASS (pass_regrename); NEXT_PASS (pass_reorder_blocks); NEXT_PASS (pass_branch_target_load_optimize); NEXT_PASS (pass_leaf_regs); NEXT_PASS (pass_sched2); NEXT_PASS (pass_split_before_regstack); NEXT_PASS (pass_stack_regs); NEXT_PASS (pass_compute_alignments); NEXT_PASS (pass_duplicate_computed_gotos); NEXT_PASS (pass_variable_tracking); NEXT_PASS (pass_free_cfg); NEXT_PASS (pass_machine_reorg); NEXT_PASS (pass_purge_lineno_notes); NEXT_PASS (pass_cleanup_barriers); NEXT_PASS (pass_delay_slots); NEXT_PASS (pass_split_for_shorten_branches); NEXT_PASS (pass_convert_to_eh_region_ranges); NEXT_PASS (pass_shorten_branches); NEXT_PASS (pass_set_nothrow_function_flags); NEXT_PASS (pass_final); *p = NULL; #undef NEXT_PASS /* Register the passes with the tree dump code. */ register_dump_files (all_ipa_passes, true, PROP_gimple_leh | PROP_cfg); register_dump_files (all_lowering_passes, false, PROP_gimple_any); register_dump_files (all_passes, false, PROP_gimple_leh | PROP_cfg); } static unsigned int last_verified; static void execute_todo (struct tree_opt_pass *pass, unsigned int flags, bool use_required) { int properties = use_required ? pass->properties_required : pass->properties_provided; #if defined ENABLE_CHECKING if (need_ssa_update_p ()) gcc_assert (flags & TODO_update_ssa_any); #endif /* Always cleanup the CFG before doing anything else. */ if (flags & TODO_cleanup_cfg) { if (current_loops) cleanup_tree_cfg_loop (); else cleanup_tree_cfg (); /* When cleanup_tree_cfg merges consecutive blocks, it may perform some simplistic propagation when removing single valued PHI nodes. This propagation may, in turn, cause the SSA form to become out-of-date (see PR 22037). So, even if the parent pass had not scheduled an SSA update, we may still need to do one. */ if (!(flags & TODO_update_ssa_any) && need_ssa_update_p ()) flags |= TODO_update_ssa; } if (flags & TODO_update_ssa_any) { unsigned update_flags = flags & TODO_update_ssa_any; update_ssa (update_flags); } if ((flags & TODO_dump_func) && dump_file && current_function_decl) { if (properties & PROP_trees) dump_function_to_file (current_function_decl, dump_file, dump_flags); else if (properties & PROP_cfg) { print_rtl_with_bb (dump_file, get_insns ()); if (graph_dump_format != no_graph && (dump_flags & TDF_GRAPH)) print_rtl_graph_with_bb (dump_file_name, get_insns ()); } else print_rtl (dump_file, get_insns ()); /* Flush the file. If verification fails, we won't be able to close the file before aborting. */ fflush (dump_file); } if ((flags & TODO_dump_cgraph) && dump_file && !current_function_decl) { dump_cgraph (dump_file); /* Flush the file. If verification fails, we won't be able to close the file before aborting. */ fflush (dump_file); } if (flags & TODO_ggc_collect) { ggc_collect (); } #if defined ENABLE_CHECKING if ((pass->properties_required & PROP_ssa) && !(pass->properties_destroyed & PROP_ssa)) verify_ssa (true); if (flags & TODO_verify_flow) verify_flow_info (); if (flags & TODO_verify_stmts) verify_stmts (); if (flags & TODO_verify_loops) verify_loop_closed_ssa (); #endif } static bool execute_one_pass (struct tree_opt_pass *pass) { unsigned int todo; /* See if we're supposed to run this pass. */ if (pass->gate && !pass->gate ()) return false; /* Note that the folders should only create gimple expressions. This is a hack until the new folder is ready. */ in_gimple_form = (pass->properties_provided & PROP_trees) != 0; /* Run pre-pass verification. */ todo = pass->todo_flags_start & ~last_verified; if (todo) execute_todo (pass, todo, true); /* If a dump file name is present, open it if enabled. */ if (pass->static_pass_number != -1) { bool initializing_dump = !dump_initialized_p (pass->static_pass_number); dump_file_name = get_dump_file_name (pass->static_pass_number); dump_file = dump_begin (pass->static_pass_number, &dump_flags); if (dump_file && current_function_decl) { const char *dname, *aname; dname = lang_hooks.decl_printable_name (current_function_decl, 2); aname = (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl))); fprintf (dump_file, "\n;; Function %s (%s)%s\n\n", dname, aname, cfun->function_frequency == FUNCTION_FREQUENCY_HOT ? " (hot)" : cfun->function_frequency == FUNCTION_FREQUENCY_UNLIKELY_EXECUTED ? " (unlikely executed)" : ""); } if (initializing_dump && dump_file && graph_dump_format != no_graph && (pass->properties_provided & (PROP_cfg | PROP_rtl)) == (PROP_cfg | PROP_rtl)) { get_dump_file_info (pass->static_pass_number)->flags |= TDF_GRAPH; dump_flags |= TDF_GRAPH; clean_graph_dump_file (dump_file_name); } } /* If a timevar is present, start it. */ if (pass->tv_id) timevar_push (pass->tv_id); /* Do it! */ if (pass->execute) pass->execute (); /* Stop timevar. */ if (pass->tv_id) timevar_pop (pass->tv_id); /* Run post-pass cleanup and verification. */ todo = pass->todo_flags_finish; last_verified = todo & TODO_verify_all; if (todo) execute_todo (pass, todo, false); /* Flush and close dump file. */ if (dump_file_name) { free ((char *) dump_file_name); dump_file_name = NULL; } if (dump_file) { dump_end (pass->static_pass_number, dump_file); dump_file = NULL; } return true; } void execute_pass_list (struct tree_opt_pass *pass) { do { if (execute_one_pass (pass) && pass->sub) execute_pass_list (pass->sub); pass = pass->next; } while (pass); } /* Same as execute_pass_list but assume that subpasses of IPA passes are local passes. */ void execute_ipa_pass_list (struct tree_opt_pass *pass) { do { if (execute_one_pass (pass) && pass->sub) { struct cgraph_node *node; for (node = cgraph_nodes; node; node = node->next) if (node->analyzed) { push_cfun (DECL_STRUCT_FUNCTION (node->decl)); current_function_decl = node->decl; execute_pass_list (pass->sub); free_dominance_info (CDI_DOMINATORS); free_dominance_info (CDI_POST_DOMINATORS); current_function_decl = NULL; pop_cfun (); ggc_collect (); } } pass = pass->next; } while (pass); }
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