http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49770
--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-07-21 13:19:27 UTC --- Author: rguenth Date: Thu Jul 21 13:19:18 2011 New Revision: 176567 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176567 Log: 2011-07-21 Richard Guenther <rguent...@suse.de> PR tree-optimization/49770 * tree-ssa-sccvn.c (valueize_refs_1): Return whether we valueized any operand. Renamed from ... (valueize_refs): ... this. New wrapper around valueize_refs_1. (valueize_shared_reference_ops_from_ref): Return whether we valueized any operand. (vn_reference_lookup): Only when we valueized any operand use the valueized reference for alias analysis. Do not preserve the original reference tree in this case. * g++.dg/torture/pr49770.C: New testcase. Added: trunk/gcc/testsuite/g++.dg/torture/pr49770.C Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-sccvn.c
