From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 29384 invoked by alias); 1 Nov 2007 04:26:18 -0000 Received: (qmail 29266 invoked by uid 48); 1 Nov 2007 04:25:57 -0000 Date: Thu, 01 Nov 2007 04:26:00 -0000 Subject: [Bug middle-end/33966] New: Revision 129625 caused 1% slowdown on 200.sixtrack X-Bugzilla-Reason: CC Message-ID: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "hjl at lucon dot org" 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: 2007-11/txt/msg00012.txt.bz2 Revision 129625 http://gcc.gnu.org/ml/gcc-cvs/2007-10/msg00730.html caused 11% drop in performance for 200.sixtrack in SPEC CPU 2000 with -O2 -ffast-math on Core 2 Duo 64bit. That patch caused very different codes generated for 200.sixtrack on x86-64. -- Summary: Revision 129625 caused 1% slowdown on 200.sixtrack Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: hjl at lucon dot org GCC target triplet: x86_64-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33966