From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7340 invoked by alias); 29 Oct 2008 07:18:31 -0000 Received: (qmail 6704 invoked by alias); 29 Oct 2008 07:17:06 -0000 Date: Wed, 29 Oct 2008 07:18:00 -0000 Message-ID: <20081029071706.6703.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug rtl-optimization/37948] [4.4 Regression] IRA generates slower code for -mtune=core2 In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "bonzini at gnu 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: 2008-10/txt/msg01888.txt.bz2 ------- Comment #2 from bonzini at gnu dot org 2008-10-29 07:17 ------- Subject: Re: [4.4 Regression] IRA generates slower code for -mtune=core2 hjl dot tools at gmail dot com wrote: > ------- Comment #1 from hjl dot tools at gmail dot com 2008-10-29 05:44 ------- > It looks like the cost of loading/storing FP values aren't appropriate for > Core 2. With this patch: Good. Is regmove still helping (which would be the wrong thing to do, but gives a data point)? Paolo -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37948