From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30868 invoked by alias); 16 Nov 2007 10:10:33 -0000 Received: (qmail 30833 invoked by alias); 16 Nov 2007 10:10:21 -0000 Date: Fri, 16 Nov 2007 10:10:00 -0000 Message-ID: <20071116101021.30832.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug tree-optimization/34099] [4.3 Regression] optimizer problem In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "rguenth at gcc dot gnu dot org" Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2007-11/txt/msg01473.txt.bz2 ------- Comment #14 from rguenth at gcc dot gnu dot org 2007-11-16 10:10 ------- Subject: Bug 34099 Author: rguenth Date: Fri Nov 16 10:10:05 2007 New Revision: 130222 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=130222 Log: 2007-11-16 Richard Guenther PR tree-optimization/34099 * tree-ssa-ccp.c (likely_value): Use a whitelist for operators that produce UNDEFINED result if at least one of its operands is UNDEFINED. By default the result is only UNDEFINED if all operands are UNDEFINED. * g++.dg/torture/pr3499.C: New testcase. * gcc.c-torture/execute/pr34099.c: Likewise. Added: trunk/gcc/testsuite/g++.dg/torture/pr34099.C trunk/gcc/testsuite/gcc.c-torture/execute/pr34099.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-ccp.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34099