-/* 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 ((pass->properties_provided ^ pass->properties_required) & PROP_rtl)
- n = 0;
-
- pass_number = n;
- if (pass->name)
- n++;
-
- if (pass->sub)
- new_properties = register_dump_files (pass->sub, ipa, 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_tree_optimization_passes (void)
-{
- struct tree_opt_pass **p;
-
-#define NEXT_PASS(PASS) (p = next_pass_1 (p, &PASS))
- /* Intraprocedural optimization passes. */
- p = &all_ipa_passes;
- NEXT_PASS (pass_ipa_inline);
- *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_pre_expand);
- NEXT_PASS (pass_warn_function_return);
- *p = NULL;
-
- p = &all_passes;
- NEXT_PASS (pass_fixup_cfg);
- NEXT_PASS (pass_tree_profile);
- 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_expand);
- NEXT_PASS (pass_rest_of_compilation);
- *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_rename_ssa_copies);
- NEXT_PASS (pass_early_warn_uninitialized);
-
- /* Initial scalar cleanups. */
- NEXT_PASS (pass_ccp);
- NEXT_PASS (pass_fre);
- NEXT_PASS (pass_dce);
- NEXT_PASS (pass_forwprop);
- NEXT_PASS (pass_vrp);
- NEXT_PASS (pass_copy_prop);
- NEXT_PASS (pass_dce);
- NEXT_PASS (pass_merge_phi);
- NEXT_PASS (pass_dominator);
-
- 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_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);
- NEXT_PASS (pass_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_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_cse_reciprocals);
- NEXT_PASS (pass_split_crit_edges);
- NEXT_PASS (pass_pre);
- NEXT_PASS (pass_sink_code);
- NEXT_PASS (pass_loop);
- NEXT_PASS (pass_dominator);
- NEXT_PASS (pass_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_loop.sub;
- NEXT_PASS (pass_loop_init);
- NEXT_PASS (pass_copy_prop);
- NEXT_PASS (pass_lim);
- NEXT_PASS (pass_unswitch);
- NEXT_PASS (pass_scev_cprop);
- 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_lower_vector_ssa);
- NEXT_PASS (pass_complete_unroll);
- NEXT_PASS (pass_iv_optimize);
- NEXT_PASS (pass_loop_done);
- *p = NULL;
-
-#undef NEXT_PASS
-
- register_dump_files (all_lowering_passes, false, 0);
- register_dump_files (all_passes, false, PROP_gimple_any
- | PROP_gimple_lcf
- | PROP_gimple_leh
- | PROP_cfg);
- register_dump_files (all_ipa_passes, true, PROP_gimple_any
- | PROP_gimple_lcf
- | 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
-
- if (flags & TODO_update_ssa_any)
- {
- unsigned update_flags = flags & TODO_update_ssa_any;
- update_ssa (update_flags);
- }
-
- if (flags & TODO_cleanup_cfg)
- {
- if (current_loops)
- cleanup_tree_cfg_loop ();
- else
- cleanup_tree_cfg ();
- }
-
- 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 ());
- else
- print_rtl (dump_file, get_insns ());
-
- /* Flush the file. If verification fails, we won't be able to
- close the file before dieing. */
- 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
- && graph_dump_format != no_graph
- && (pass->properties_provided & (PROP_cfg | PROP_rtl))
- == (PROP_cfg | PROP_rtl))
- 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);
-
- if (dump_file
- && (pass->properties_provided & (PROP_cfg | PROP_rtl))
- == (PROP_cfg | PROP_rtl))
- print_rtl_with_bb (dump_file, get_insns ());
-
- /* 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;
-}
-
-static 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);
-}
-
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