r117195 - in /branches/out-of-ssa-the-sequel/gc...

[amacleod@gcc.gnu.org]

Author: amacleod
Date: Mon Sep 25 15:52:59 2006
New Revision: 117195

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=117195
Log:
 Cleaned up implementation of TER.


2006-09-15  Andrew Macleod  <amacleod@redhat.com>

	* tree-ssa-ter.c (struct temp_expr_table_d): Rensame fields, add 
	explicit vector replacdeable expressions instead of sharing.
	(new_temp_expr_table): Rename fields, count number of ssa_names in
	each partition.
	(free_temp_expr_table): Rename field, free new fields.
	(version_to_be_replaced_p): New. Is an ssa-name replaceable?
	(add_value_to_version_list): Rename to make_dependent_on_partition.
	(add_value_to_partition_list): Rename to add_to_partition_kill_list.
	(remove_value_from_partition_list): Rename to 
	remove_from_partition_kill_list.
	(add_dependence): Use renamed field, cleanup. Don't add a dependence
	on partitions with only one member.
	(is_replaceable_p): New.  Split out replaceability check from 
	check_replaceable.
	(process_replaceable): New. Replacement code split from 
	check_replaceable.
	(check_replaceable): Removed.
	(finished_with_expr): Renamed from finish_expr.
	(kill_expr): Use renamed fields. Less parameters.
	(kill_virtual_exprs): Less parameters.
	(mark_replaceable): Use renamed fields.
	(find_replaceable_in_bb): Use renamed fields, cleanup.
	(find_replaceable_exprs): Use renamed routines, cleanup.
	(dump_replaceable_exprs): don;t go past end of ssa_names list.
	(debug_ter): New.  Debug routine to dump state.


Modified:
    branches/out-of-ssa-the-sequel/gcc/ChangeLog
    branches/out-of-ssa-the-sequel/gcc/tree-ssa-ter.c