From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19099 invoked by alias); 26 Mar 2004 22:27:16 -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 19057 invoked from network); 26 Mar 2004 22:27:15 -0000 Received: from unknown (HELO frothingslosh.sfbay.redhat.com) (66.187.237.200) by sources.redhat.com with SMTP; 26 Mar 2004 22:27:15 -0000 Received: from frothingslosh.sfbay.redhat.com (localhost.localdomain [127.0.0.1]) by frothingslosh.sfbay.redhat.com (8.12.10/8.12.10) with ESMTP id i2QMRET4002667; Fri, 26 Mar 2004 14:27:14 -0800 Received: (from rth@localhost) by frothingslosh.sfbay.redhat.com (8.12.10/8.12.10/Submit) id i2QMRDNY002665; Fri, 26 Mar 2004 14:27:13 -0800 X-Authentication-Warning: frothingslosh.sfbay.redhat.com: rth set sender to rth@redhat.com using -f Date: Sat, 27 Mar 2004 00:42:00 -0000 From: Richard Henderson To: Joe Buck Cc: law@redhat.com, Richard Guenther , Diego Novillo , "gcc@gcc.gnu.org" Subject: Re: -ffast-math and floating point reordering Message-ID: <20040326222713.GA2621@redhat.com> Mail-Followup-To: Richard Henderson , Joe Buck , law@redhat.com, Richard Guenther , Diego Novillo , "gcc@gcc.gnu.org" References: <4064721A.6060905@tat.physik.uni-tuebingen.de> <200403261837.i2QIbgbX016412@speedy.slc.redhat.com> <20040326105057.A6362@synopsys.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040326105057.A6362@synopsys.com> User-Agent: Mutt/1.4.1i X-SW-Source: 2004-03/txt/msg01593.txt.bz2 On Fri, Mar 26, 2004 at 10:50:57AM -0800, Joe Buck wrote: > But if that idea is used, then the C and C++ front ends would > have to put a PLUS_EXPR around *every* expression. No, what was meant was that one of the flag bits on the PLUS_EXPR would allow or disallow the reassociation. Likely allow, since that would be safest compatibility-wise with exating front-ends. r~