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2006-12-08 Andrew MacLeod <amacleod@redhat.com> * Makefile.in: Add new file tree-ssa-ter.c. * tree-outof-ssa.c (struct temp_expr_table_d, new_temp_expr_table, free_temp_expr_table, add_value_to_version_list, add_value_to_partition_list, remove_value_from_partition_list, add_dependence, check_replaceable, finish_expr, mark_replaceable, kill_expr, kill_virtual_exprs, find_replaceable_in_bb, find_replaceable_exprs, dump_replaceable_exprs): Move to tree-ssa-ter.c. * tree-ssa-live.h (find_replaceable_exprs, dump_replaceable_exprs): Add prototypes. * tree-ssa-ter.c: New file using code moved from tree-outof-ssa.c. (struct value_expr_d): Remove. (struct temp_expr_table_d): Rename fields, add explicit vector of replaceable expressions instead of sharing. Change value_expr_p's to bitmap. Delete free_list. (new_temp_expr_table): Rename fields, count number of ssa_names in each partition. (free_temp_expr_table): Rename field, free new fields. (new_value_expr, free_value_expr, find_value_in_list, add_value_to_list, add_info_to_list, remove_value_from_list): Delete. (version_to_be_replaced_p): New. Is an ssa-name replaceable? (make_dependent_on_partition): New. Set bit in version list, allocating a bitmap if need be. (add_to_partition_kill_list): New. Set bit in the partition list, allocating a bitmap if need be. (remove_from_partition_kill_list): New. Remove a bit from the partition list, free the bitmap if it is empty. (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. From-SVN: r119657
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