gcc/gcc ChangeLog.tree-ssa tree-ssa-dom.c

[law@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	tree-ssa-20020619-branch
Changes by:	law@gcc.gnu.org	2004-04-09 05:40:05

Modified files:
	gcc            : ChangeLog.tree-ssa tree-ssa-dom.c 

Log message:
	* tree-ssa-dom.c (nonzero_vars): Turn it into a bitmap.
	(tree_ssa_dominator_optimize): Update initialization, clearing and
	freeing of nonzero_vars.
	(restore_nonzero_vars_to_original_value): New function.
	(dom_opt_finalize_block): Use it.
	(record_var_is_nonzero): Only record the variable into the block
	local nonzero vars array if it did not already have a nonzero property.
	(lookup_avail_expr): Lookup the nonzero property of an SSA_NAME with
	a bitmap test.

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=1.1.2.1318&r2=1.1.2.1319
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-dom.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.150&r2=1.1.2.151