tree-flow.h (struct gimple_df): Remove syms_to_rename member, add ssa_renaming_needed and rename_vops flags.

2012-08-01  Richard Guenther  <rguenther@suse.de>

	* tree-flow.h (struct gimple_df): Remove syms_to_rename member,
	add ssa_renaming_needed and rename_vops flags.
	(SYMS_TO_RENAME): Remove.
	(symbol_marked_for_renaming): Likewise.
	(mark_virtual_ops_for_renaming): Likewise.
	* tree-into-ssa.c (symbols_to_rename_set, symbols_to_rename):
	New globals.
	(mark_for_renaming, marked_for_renaming): New functions.
	(symbol_marked_for_renaming): Remove.
	(dump_currdefs): Adjust.
	(maybe_replace_use): Likewise.
	(maybe_replace_use_in_debug_stmt): Likewise.
	(maybe_register_def): Likewise.
	(rewrite_update_phi_arguments): Likewise.
	(rewrite_update_enter_block): Likewise.
	(fini_ssa_renamer): Clear update SSA status here ...
	(delete_update_ssa): ... not here.  Free rename set.
	(prepare_block_for_update): Compute which decls need renaming.
	(dump_update_ssa): Adjust.
	(mark_sym_for_renaming): Adjust update SSA status for virtuals.
	(need_ssa_update_p): Adjust.
	(insert_updated_phi_nodes_for): Likewise.
	(update_ssa): Likewise.
	* tree-ssa-operands.c (finalize_ssa_defs): Adjust update SSA status
	for virtual and real operands.
	(finalize_ssa_uses): Likewise.
	* tree-ssanames.c (init_ssanames): Adjust.
	* tree-ssa.c (maybe_rewrite_mem_ref_base, maybe_optimize_var,
	execute_update_addresses_taken): Add bitmap to keep track of which
	candidates are suitable for rewriting and later renaming by SSA
	update.
	* matrix-reorg.c (transform_access_sites): Do not rename all defs.
	* tree-dfa.c (make_rename_temp): Do not mark real operands for renaming.
	* cgraphunit.c (assemble_thunk): Likewise.
	* gimplify.c (gimple_regimplify_operands): Likewise.
	(force_gimple_operand_1): Likewise.
	* ipa-prop.c (ipa_modify_formal_parameters): Likewise.
	* tree-inline.c (declare_return_variable): Likewise.
	* tree-parloops.c (separate_decls_in_region_stmt): Do not call
	mark_virtual_ops_for_renaming.
	(create_stores_for_reduction): Likewise.
	(create_loads_and_stores_for_name): Likewise.
	* tree-predcom.c (mark_virtual_ops_for_renaming): Remove.
	(initialize_root_vars_lm): Do not call mark_virtual_ops_for_renaming.
	(execute_load_motion): Likewise.
	(remove_stmt): Likewise.
	(execute_pred_commoning_chain): Likewise.
	* tree-sra.c (create_access_replacement): Do not rename real
	operands.
	(get_unrenamed_access_replacement): Unify with ...
	(get_access_replacement): ... this.
	(get_repl_default_def_ssa_name): Adjust.
	* tree-ssa-loop-im.c (move_computations_stmt): Manually update
	virtual SSA form.
	(rewrite_mem_ref_loc): Do not call mark_virtual_ops_for_renaming.
	* tree-ssa-loop-prefetch.c (emit_mfence_after_loop): Likewise.

From-SVN: r190033

1 files changed, 5 insertions, 6 deletions

diff --git a/gcc/tree-flow.h b/gcc/tree-flow.h
index 301bd7e..553f22e 100644
--- a/gcc/tree-flow.h
+++ b/gcc/tree-flow.h
@@ -77,9 +77,11 @@ struct GTY(()) gimple_df {
      for this variable with an empty defining statement.  */
   htab_t GTY((param_is (union tree_node))) default_defs;
 
-  /* Symbols whose SSA form needs to be updated or created for the first
-     time.  */
-  bitmap syms_to_rename;
+  /* True if there are any symbols that need to be renamed.  */
+  unsigned int ssa_renaming_needed : 1;
+
+  /* True if all virtual operands need to be renamed.  */
+  unsigned int rename_vops : 1;
 
   /* True if the code is in ssa form.  */
   unsigned int in_ssa_p : 1;
@@ -100,7 +102,6 @@ struct GTY(()) gimple_df {
 #define SSANAMES(fun) (fun)->gimple_df->ssa_names
 #define MODIFIED_NORETURN_CALLS(fun) (fun)->gimple_df->modified_noreturn_calls
 #define DEFAULT_DEFS(fun) (fun)->gimple_df->default_defs
-#define SYMS_TO_RENAME(fun) (fun)->gimple_df->syms_to_rename
 
 typedef struct
 {
@@ -565,7 +566,6 @@ bool name_registered_for_update_p (tree);
 void release_ssa_name_after_update_ssa (tree);
 void compute_global_livein (bitmap, bitmap);
 void mark_sym_for_renaming (tree);
-bool symbol_marked_for_renaming (tree);
 tree get_current_def (tree);
 void set_current_def (tree, tree);
 
@@ -715,7 +715,6 @@ void tree_transform_and_unroll_loop (struct loop *, unsigned,
 				     transform_callback, void *);
 bool contains_abnormal_ssa_name_p (tree);
 bool stmt_dominates_stmt_p (gimple, gimple);
-void mark_virtual_ops_for_renaming (gimple);
 
 /* In tree-ssa-dce.c */
 void mark_virtual_operand_for_renaming (tree);