From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 10706 invoked by alias); 27 Feb 2014 10:56:29 -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 10348 invoked by uid 55); 27 Feb 2014 10:56:25 -0000 From: "rguenther at suse dot de" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/59487] [4.9 Regression] When compiled with -fwhole-program rnflow.f90 runs up to 40% slower after r202826 Date: Thu, 27 Feb 2014 10:56:00 -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: 4.9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenther at suse dot de X-Bugzilla-Status: WAITING X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.9.0 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: 2014-02/txt/msg02713.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59487 --- Comment #8 from rguenther at suse dot de --- On Thu, 27 Feb 2014, Ganesh.Gopalasubramanian at amd dot com wrote: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59487 > > --- Comment #7 from GGanesh --- > Richard! With gcc version 4.9.0 20140224, I could see a gap between > with/without -fwhole-program. With what other options? > with -fwhole-program : time ./rnflowWhPr > real 0m26.184s > user 0m26.018s > sys 0m0.156s > > without -fwhole-program: time ./rnflow > real 0m18.251s > user 0m18.061s > sys 0m0.180s