From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 4963 invoked by alias); 5 Feb 2013 13:08:45 -0000 Received: (qmail 2415 invoked by uid 48); 5 Feb 2013 13:07:53 -0000 From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/53342] [4.8 Regression] rnflow.f90 is ~5% slower after revision 187340 Date: Tue, 05 Feb 2013 13:08:00 -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-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.8.0 X-Bugzilla-Changed-Fields: Attachment #29355 is obsolete Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 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: 2013-02/txt/msg00390.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53342 Richard Biener changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #29355|0 |1 is obsolete| | --- Comment #10 from Richard Biener 2013-02-05 13:07:51 UTC --- Created attachment 29356 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29356 patch This is what I am testing now. Of course nothing tells us (yet) if that fixes this bug - the slowdown of rnflow.f90 - which might be caused by us vectorizing this loop at all (as far as I understand before the change we did not vectorize it).