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gcc/gcc ChangeLog.tree-ssa tree-ssa-dce.c
- From: amacleod at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: 23 Nov 2002 01:07:14 -0000
- Subject: gcc/gcc ChangeLog.tree-ssa tree-ssa-dce.c
CVSROOT: /cvs/gcc
Module name: gcc
Branch: tree-ssa-20020619-branch
Changes by: amacleod@gcc.gnu.org 2002-11-22 17:07:14
Modified files:
gcc : ChangeLog.tree-ssa tree-ssa-dce.c
Log message:
2002-11-22 Andrew MacLeod <amacleod@redhat.com>
* tree-ssa-dce.c (mark_necessary): Split out mark_tree_necessary. Don't
mark if tree is already marked.
(mark_tree_necessary): New. Mark tree without processing control parent.
(mark_control_parent_necessary): Remove recursion, mark trees directly.
(need_to_preserve_store): Can expression/symbol affect external values.
(tree_ssa_eliminate_dead_code): Split.
(find_useful_stmts): Find initial set of needed statements.
(process_worklist): Find statements which calculate needed statements.
(remove_dead_stmts): Delete statements which are dead.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.tree-ssa.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.121&r2=1.1.2.122
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-dce.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.11&r2=1.1.2.12