From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15770 invoked by alias); 4 Dec 2013 01:52:54 -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 15726 invoked by uid 48); 4 Dec 2013 01:52:51 -0000 From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/59371] [4.8/4.9 Regression] Performance regression in GCC 4.8 and later versions. Date: Wed, 04 Dec 2013 01:52:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: pinskia at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned 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/msg00247.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59371 --- Comment #6 from Andrew Pinski --- (In reply to Maciej W. Rozycki from comment #5) > (In reply to Andrew Pinski from comment #4) > > Well that corrects how i++ is done. > > Old MIPS assembly code produced was AFAICT correct. The loop termination > condition was expressed as: Correctly representative in the gimple IR rather than in the final assembly.