From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 8342 invoked by alias); 5 Sep 2014 08:34:09 -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 8273 invoked by uid 48); 5 Sep 2014 08:34:05 -0000 From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/63184] [4.8/4.9/5 Regression] Fails to simplify comparison Date: Fri, 05 Sep 2014 08:34:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 4.9.1 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: minor X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: 5.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status cf_reconfirmed_on assigned_to target_milestone everconfirmed bug_severity 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: 2014-09/txt/msg01106.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63184 Richard Biener changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2014-09-05 Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org Target Milestone|--- |5.0 Ever confirmed|0 |1 Severity|normal |minor --- Comment #1 from Richard Biener --- Note that due to the inconsistency with -fstrict-overflow I don't consider this an important optimization regression. But I'll see if I can improve some generic code to handle these better (with optimization). But for 5.0 only.