From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27496 invoked by alias); 1 Sep 2009 09:18:01 -0000 Received: (qmail 27457 invoked by uid 48); 1 Sep 2009 09:17:46 -0000 Date: Tue, 01 Sep 2009 09:18:00 -0000 Message-ID: <20090901091746.27456.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug target/38306] [4.4/4.5 Regression] 15% slowdown w.r.t. 4.3 of computational kernel on some architectures In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "jv244 at cam dot ac dot uk" 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: 2009-09/txt/msg00022.txt.bz2 ------- Comment #17 from jv244 at cam dot ac dot uk 2009-09-01 09:17 ------- (In reply to comment #16) > All numbers with trunk: with 4.3 there is no difference between -O2 and -O3 -O2 -march=native -funroll-loops -ffast-math: 4.388 -O2 -march=native -funroll-loops -ffast-math -fschedule-insns: 3.352 -O3 -march=native -funroll-loops -ffast-math: 4.380 -O3 -march=native -funroll-loops -ffast-math -fschedule-insns: 3.372 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38306