From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15470 invoked by alias); 10 Dec 2013 22:59:33 -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 15389 invoked by uid 55); 10 Dec 2013 22:59:30 -0000 From: "ebotcazou at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/58295] [4.8/4.9 regression] Missed zero-extension elimination in the combiner Date: Tue, 10 Dec 2013 22:59:00 -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: 4.9.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: ebotcazou at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: ebotcazou at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.8.3 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: 2013-12/txt/msg00910.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58295 --- Comment #15 from Eric Botcazou --- Author: ebotcazou Date: Tue Dec 10 22:59:27 2013 New Revision: 205875 URL: http://gcc.gnu.org/viewcvs?rev=205875&root=gcc&view=rev Log: PR rtl-optimization/58295 * simplify-rtx.c (simplify_truncation): Restrict the distribution for WORD_REGISTER_OPERATIONS targets. Modified: branches/gcc-4_8-branch/gcc/ChangeLog branches/gcc-4_8-branch/gcc/simplify-rtx.c