r197625 - in /trunk/gcc: ChangeLog testsuite/Ch...

[jakub@gcc.gnu.org]

Author: jakub
Date: Tue Apr  9 10:04:24 2013
New Revision: 197625

URL: http://gcc.gnu.org/viewcvs?rev=197625&root=gcc&view=rev
Log:
	PR tree-optimization/56854
	* tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Don't
	forward into clobber stmts if it would change MEM_REF lhs into
	non-MEM_REF.

	* g++.dg/torture/pr56854.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr56854.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-forwprop.c