r171545 - in /branches/gcc-4_6-branch/gcc: Chan...

[jakub@gcc.gnu.org]

Author: jakub
Date: Sat Mar 26 09:19:36 2011
New Revision: 171545

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=171545
Log:
	Backport from mainline
	2011-03-17  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/48141
	* dse.c (record_store): If no positions are needed in an insn
	that cannot be deleted, at least unchain it from active_local_stores.

	* gcc.dg/pr48141.c: New test.

Added:
    branches/gcc-4_6-branch/gcc/testsuite/gcc.dg/pr48141.c
Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/dse.c
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog