From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 22139 invoked by alias); 13 Feb 2015 20:18:34 -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 22051 invoked by uid 55); 13 Feb 2015 20:18:31 -0000 From: "law at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/47477] [4.8/4.9/5 regression] Sub-optimal mov at end of method Date: Fri, 13 Feb 2015 20:18:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 4.6.0 X-Bugzilla-Keywords: missed-optimization, ra X-Bugzilla-Severity: normal X-Bugzilla-Who: law at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.8.5 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/msg01544.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47477 --- Comment #21 from Jeffrey A. Law --- Author: law Date: Fri Feb 13 20:17:55 2015 New Revision: 220695 URL: https://gcc.gnu.org/viewcvs?rev=220695&root=gcc&view=rev Log: PR rtl-optimization/47477 * match.pd (convert (plus/minus (convert @0) (convert @1): New simplifier to narrow arithmetic. PR rtl-optimization/47477 * gcc.dg/tree-ssa/pr47477.c: New test. Added: trunk/gcc/testsuite/gcc.dg/tree-ssa/pr47477.c Modified: trunk/gcc/ChangeLog trunk/gcc/match.pd trunk/gcc/testsuite/ChangeLog