r128180 - in /trunk/gcc: ChangeLog domwalk.c te...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Thu Sep  6 09:05:58 2007
New Revision: 128180

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=128180
Log:
2007-09-06  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/33302
	* tree-ssa-dse.c (tree_ssa_dse): Connect infinite loops
	to the exit block before doing the post-dominator walk.
	* domwalk.c (walk_dominator_tree): The exit block is
	interesting even if it is not reachable.

	* gcc.dg/tree-ssa/ssa-dse-11.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-11.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/domwalk.c
    trunk/gcc/testsuite/ChangeLog