/* Top-level control of tree optimizations.
- Copyright 2001, 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
+ Copyright 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009
+ Free Software Foundation, Inc.
Contributed by Diego Novillo <dnovillo@redhat.com>
This file is part of GCC.
{
{
GIMPLE_PASS,
- NULL, /* name */
+ "*all_optimizations", /* name */
gate_all_optimizations, /* gate */
NULL, /* execute */
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
- 0, /* tv_id */
+ TV_NONE, /* tv_id */
0, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
gate_all_early_local_passes (void)
{
/* Don't bother doing anything if the program has errors. */
- return (!errorcount && !sorrycount);
+ return (!errorcount && !sorrycount && !in_lto_p);
}
struct simple_ipa_opt_pass pass_early_local_passes =
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
- 0, /* tv_id */
+ TV_NONE, /* tv_id */
0, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
cgraph state so newly inserted functions are also early optimized.
However we execute early local optimizations for lately inserted
functions, in that case don't reset cgraph state back to IPA_SSA. */
- if (flag_unit_at_a_time && cgraph_state < CGRAPH_STATE_IPA_SSA)
+ if (cgraph_state < CGRAPH_STATE_IPA_SSA)
cgraph_state = CGRAPH_STATE_IPA_SSA;
return 0;
}
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
- 0, /* tv_id */
+ TV_NONE, /* tv_id */
0, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
- 0, /* tv_id */
+ TV_NONE, /* tv_id */
PROP_cfg, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
{
{
GIMPLE_PASS,
- "final_cleanup", /* name */
+ "optimized", /* name */
NULL, /* gate */
execute_cleanup_cfg_post_optimizing, /* execute */
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
- 0, /* tv_id */
+ TV_NONE, /* tv_id */
PROP_cfg, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
TODO_dump_func /* todo_flags_finish */
+ | TODO_remove_unused_locals
}
};
/* Pass: do the actions required to finish with tree-ssa optimization
passes. */
-static unsigned int
+unsigned int
execute_free_datastructures (void)
{
free_dominance_info (CDI_DOMINATORS);
free_dominance_info (CDI_POST_DOMINATORS);
- /* Remove the ssa structures. */
- if (cfun->gimple_df)
- delete_tree_ssa ();
- return 0;
-}
-
-struct gimple_opt_pass pass_free_datastructures =
-{
- {
- GIMPLE_PASS,
- NULL, /* name */
- NULL, /* gate */
- execute_free_datastructures, /* execute */
- NULL, /* sub */
- NULL, /* next */
- 0, /* static_pass_number */
- 0, /* tv_id */
- PROP_cfg, /* properties_required */
- 0, /* properties_provided */
- 0, /* properties_destroyed */
- 0, /* todo_flags_start */
- 0 /* todo_flags_finish */
- }
-};
-/* Pass: free cfg annotations. */
-
-static unsigned int
-execute_free_cfg_annotations (void)
-{
/* And get rid of annotations we no longer need. */
delete_tree_cfg_annotations ();
return 0;
}
-struct gimple_opt_pass pass_free_cfg_annotations =
-{
- {
- GIMPLE_PASS,
- NULL, /* name */
- NULL, /* gate */
- execute_free_cfg_annotations, /* execute */
- NULL, /* sub */
- NULL, /* next */
- 0, /* static_pass_number */
- 0, /* tv_id */
- PROP_cfg, /* properties_required */
- 0, /* properties_provided */
- 0, /* properties_destroyed */
- 0, /* todo_flags_start */
- 0 /* todo_flags_finish */
- }
-};
-
/* Pass: fixup_cfg. IPA passes, compilation of earlier functions or inlining
might have changed some properties, such as marked functions nothrow.
Remove redundant edges and basic blocks, and create new ones if necessary.
execute_fixup_cfg (void)
{
basic_block bb;
- block_stmt_iterator bsi;
+ gimple_stmt_iterator gsi;
int todo = gimple_in_ssa_p (cfun) ? TODO_verify_ssa : 0;
+ gcov_type count_scale;
+ edge e;
+ edge_iterator ei;
+
+ if (ENTRY_BLOCK_PTR->count)
+ count_scale = (cgraph_node (current_function_decl)->count * REG_BR_PROB_BASE
+ + ENTRY_BLOCK_PTR->count / 2) / ENTRY_BLOCK_PTR->count;
+ else
+ count_scale = REG_BR_PROB_BASE;
+
+ ENTRY_BLOCK_PTR->count = cgraph_node (current_function_decl)->count;
+ EXIT_BLOCK_PTR->count = (EXIT_BLOCK_PTR->count * count_scale
+ + REG_BR_PROB_BASE / 2) / REG_BR_PROB_BASE;
+
+ FOR_EACH_BB (bb)
+ {
+ bb->count = (bb->count * count_scale
+ + REG_BR_PROB_BASE / 2) / REG_BR_PROB_BASE;
+ for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
+ {
+ gimple stmt = gsi_stmt (gsi);
+ tree decl = is_gimple_call (stmt)
+ ? gimple_call_fndecl (stmt)
+ : NULL;
+
+ if (decl
+ && gimple_call_flags (stmt) & (ECF_CONST
+ | ECF_PURE
+ | ECF_LOOPING_CONST_OR_PURE))
+ {
+ if (gimple_in_ssa_p (cfun))
+ {
+ todo |= TODO_update_ssa | TODO_cleanup_cfg;
+ mark_symbols_for_renaming (stmt);
+ update_stmt (stmt);
+ }
+ }
+
+ maybe_clean_eh_stmt (stmt);
+ }
- cfun->after_inlining = true;
-
- if (cfun->eh)
- FOR_EACH_BB (bb)
- {
- for (bsi = bsi_start (bb); !bsi_end_p (bsi); bsi_next (&bsi))
- {
- tree stmt = bsi_stmt (bsi);
- tree call = get_call_expr_in (stmt);
- tree decl = call ? get_callee_fndecl (call) : NULL;
-
- if (decl && call_expr_flags (call) & (ECF_CONST | ECF_PURE
- | ECF_LOOPING_CONST_OR_PURE)
- && TREE_SIDE_EFFECTS (call))
- {
- if (gimple_in_ssa_p (cfun))
- {
- todo |= TODO_update_ssa | TODO_cleanup_cfg;
- update_stmt (stmt);
- }
- TREE_SIDE_EFFECTS (call) = 0;
- }
- if (decl && TREE_NOTHROW (decl))
- TREE_NOTHROW (call) = 1;
- if (!tree_could_throw_p (stmt) && lookup_stmt_eh_region (stmt))
- remove_stmt_from_eh_region (stmt);
- }
- if (tree_purge_dead_eh_edges (bb))
- todo |= TODO_cleanup_cfg;
- }
+ if (gimple_purge_dead_eh_edges (bb))
+ todo |= TODO_cleanup_cfg;
+ FOR_EACH_EDGE (e, ei, bb->succs)
+ e->count = (e->count * count_scale
+ + REG_BR_PROB_BASE / 2) / REG_BR_PROB_BASE;
+ }
+ if (count_scale != REG_BR_PROB_BASE)
+ compute_function_frequency ();
/* Dump a textual representation of the flowgraph. */
if (dump_file)
- dump_tree_cfg (dump_file, dump_flags);
+ gimple_dump_cfg (dump_file, dump_flags);
return todo;
}
+struct gimple_opt_pass pass_fixup_cfg =
+{
+ {
+ GIMPLE_PASS,
+ "*free_cfg_annotations", /* name */
+ NULL, /* gate */
+ execute_fixup_cfg, /* execute */
+ NULL, /* sub */
+ NULL, /* next */
+ 0, /* static_pass_number */
+ TV_NONE, /* tv_id */
+ PROP_cfg, /* properties_required */
+ 0, /* properties_provided */
+ 0, /* properties_destroyed */
+ 0, /* todo_flags_start */
+ 0 /* todo_flags_finish */
+ }
+};
+
/* Do the actions required to initialize internal data structures used
in tree-ssa optimization passes. */
{
{
GIMPLE_PASS,
- NULL, /* name */
+ "*init_datastructures", /* name */
NULL, /* gate */
execute_init_datastructures, /* execute */
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
- 0, /* tv_id */
+ TV_NONE, /* tv_id */
PROP_cfg, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
current_function_decl = fn;
push_cfun (DECL_STRUCT_FUNCTION (fn));
- tree_register_cfg_hooks ();
+ gimple_register_cfg_hooks ();
bitmap_obstack_initialize (NULL);
execute_pass_list (all_lowering_passes);
if (optimize && cgraph_global_info_ready)
timevar_push (TV_EXPAND);
- gcc_assert (!flag_unit_at_a_time || cgraph_global_info_ready);
+ gcc_assert (cgraph_global_info_ready);
node = cgraph_node (fndecl);
not safe to try to expand expressions involving them. */
cfun->dont_save_pending_sizes_p = 1;
- tree_register_cfg_hooks ();
+ gimple_register_cfg_hooks ();
bitmap_obstack_initialize (®_obstack); /* FIXME, only at RTL generation*/
+
+ execute_all_ipa_transforms ();
+
/* Perform all tree transforms and optimizations. */
execute_pass_list (all_passes);
/* Release the default bitmap obstack. */
bitmap_obstack_release (NULL);
- DECL_SAVED_TREE (fndecl) = NULL;
set_cfun (NULL);
/* If requested, warn about function definitions where the function will
}
}
- if (!flag_inline_trees)
+ gimple_set_body (fndecl, NULL);
+ if (DECL_STRUCT_FUNCTION (fndecl) == 0
+ && !cgraph_node (fndecl)->origin)
{
- DECL_SAVED_TREE (fndecl) = NULL;
- if (DECL_STRUCT_FUNCTION (fndecl) == 0
- && !cgraph_node (fndecl)->origin)
- {
- /* Stop pointing to the local nodes about to be freed.
- But DECL_INITIAL must remain nonzero so we know this
- was an actual function definition.
- For a nested function, this is done in c_pop_function_context.
- If rest_of_compilation set this to 0, leave it 0. */
- if (DECL_INITIAL (fndecl) != 0)
- DECL_INITIAL (fndecl) = error_mark_node;
- }
+ /* Stop pointing to the local nodes about to be freed.
+ But DECL_INITIAL must remain nonzero so we know this
+ was an actual function definition.
+ For a nested function, this is done in c_pop_function_context.
+ If rest_of_compilation set this to 0, leave it 0. */
+ if (DECL_INITIAL (fndecl) != 0)
+ DECL_INITIAL (fndecl) = error_mark_node;
}
input_location = saved_loc;
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