From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 16771 invoked by alias); 26 Mar 2003 19:52:49 -0000 Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org Received: (qmail 16763 invoked from network); 26 Mar 2003 19:52:46 -0000 Received: from unknown (HELO igw2.watson.ibm.com) (129.34.20.6) by sources.redhat.com with SMTP; 26 Mar 2003 19:52:46 -0000 Received: from sp1n293en1.watson.ibm.com (sp1n293en1.watson.ibm.com [9.2.112.57]) by igw2.watson.ibm.com (8.11.6/8.11.4) with ESMTP id h2QJqgT94268; Wed, 26 Mar 2003 14:52:42 -0500 Received: from makai.watson.ibm.com (makai.watson.ibm.com [9.2.216.144]) by sp1n293en1.watson.ibm.com (8.11.6/8.11.4) with ESMTP id h2QJqgl93724; Wed, 26 Mar 2003 14:52:42 -0500 Received: from watson.ibm.com (localhost [127.0.0.1]) by makai.watson.ibm.com (AIX4.3/8.9.3/8.9.3/09-18-2002) with ESMTP id OAA20638; Wed, 26 Mar 2003 14:52:41 -0500 Message-Id: <200303261952.OAA20638@makai.watson.ibm.com> To: Zdenek Dvorak cc: Dale Johannesen , gcc@gcc.gnu.org Subject: Re: new unroller vs ppc References: <20030321075050.GA25664@atrey.karlin.mff.cuni.cz> Date: Wed, 26 Mar 2003 20:25:00 -0000 From: David Edelsohn X-SW-Source: 2003-03/txt/msg01620.txt.bz2 I will try with your subreg patch, but just to let you know the magnitude of the performance degradation created by the new unroller code for PowerPC: Base = old unroller, Peak = new unroller 168.wupwise 1600 262 611* 1600 270 593* 171.swim 3100 534 580* 3100 520 596* 172.mgrid 1800 317 567* 1800 518 347* 177.mesa 1400 293 477* 1400 308 454* 179.art 2600 233 1117* 2600 270 962* 183.equake 1300 129 1009* 1300 141 919* 188.ammp 2200 628 350* 2200 595 370* 200.sixtrack 1100 683 161* 1100 662 166* 181.mcf 1800 217 831* 1800 216 832* 197.parser 1800 592 304* 1800 579 311* 255.vortex 1900 289 657* 1900 287 662* 300.twolf 3000 465 645* 3000 469 640* David