https://gcc.gnu.org/bugzilla/show_bug.cgi?id=45397
--- Comment #31 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Mon Feb 27 08:51:28 2017 New Revision: 245752 URL: https://gcc.gnu.org/viewcvs?rev=245752&root=gcc&view=rev Log: 2017-02-27 Richard Biener <rguent...@suse.de> PR tree-optimization/45397 * tree-ssa-pre.c (eliminate_insert): Handle BIT_AND_EXPR. * tree-ssa-sccvn.c (valueized_wider_op): New helper. (visit_nary_op): Add pattern matching for CSEing sign-changed or truncated operations with wider ones. * gcc.dg/tree-ssa/pr45397.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/tree-ssa/pr45397.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-pre.c trunk/gcc/tree-ssa-sccvn.c
