r179593 - in /trunk/gcc: ChangeLog testsuite/Ch...

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Thu Oct  6 08:41:44 2011
New Revision: 179593

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179593
Log:
2011-10-06  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/38884
	* tree-ssa-sccvn.c (vn_reference_lookup_3): Handle partial
	reads from aggregate SSA names.

	* gcc.dg/tree-ssa/ssa-fre-34.c: New testcase.
	* gcc.dg/tree-ssa/ssa-fre-35.c: Likewise.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-34.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-35.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c