From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 117893 invoked by alias); 26 Feb 2015 21:03:50 -0000 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 Received: (qmail 111609 invoked by uid 55); 26 Feb 2015 21:03:46 -0000 From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/65216] [5 Regression] wrong code at -O3 on x86_64-linux-gnu Date: Fri, 27 Feb 2015 00:12:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 5.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: jakub at gcc dot gnu.org X-Bugzilla-Target-Milestone: 5.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2015-02/txt/msg02984.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65216 --- Comment #6 from Jakub Jelinek --- Author: jakub Date: Thu Feb 26 21:03:14 2015 New Revision: 221034 URL: https://gcc.gnu.org/viewcvs?rev=221034&root=gcc&view=rev Log: PR tree-optimization/65216 * tree-ssa-reassoc.c (rewrite_expr_tree): Force creation of new stmt and new SSA_NAME for lhs whenever the arguments have changed and weren't just swapped. Fix comment typo. * gcc.c-torture/execute/pr65216.c: New test. Added: trunk/gcc/testsuite/gcc.c-torture/execute/pr65216.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-reassoc.c