From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6461 invoked by alias); 29 Nov 2007 08:09:30 -0000 Received: (qmail 6424 invoked by uid 48); 29 Nov 2007 08:09:18 -0000 Date: Thu, 29 Nov 2007 08:09:00 -0000 Message-ID: <20071129080918.6423.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug target/32086] [4.3 Regression] 10% to 20% Performance Regression Between 4.1.3 and 4.3 In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "ubizjak at gmail dot com" 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/msg02899.txt.bz2 ------- Comment #1 from ubizjak at gmail dot com 2007-11-29 08:09 ------- (In reply to comment #0) > b) gfortran -m32 -march=opteron -ffast-math -funroll-loops -ftree-vectorize > -ftree-loop-linear -O3 > > induct.f90: 61.41 [100%] vs 46.94 [ 76%] > test2.f90: 5.45 [100%] vs 4.54 [ 83%] I have run the test compiled with above options, with and without -fvect-cost-model, but on Xeon 3.2G in 32bit mode: w/o -fvect-cost-model: user 1m40.906s w/ -fvect-cost-model: user 0m46.439s -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32086