From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 12729 invoked by alias); 8 Nov 2010 22:58:18 -0000 Received: (qmail 12717 invoked by uid 22791); 8 Nov 2010 22:58:17 -0000 X-SWARE-Spam-Status: No, hits=-1.8 required=5.0 tests=AWL,BAYES_00,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from mail.codesourcery.com (HELO mail.codesourcery.com) (38.113.113.100) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 08 Nov 2010 22:58:13 +0000 Received: (qmail 23438 invoked from network); 8 Nov 2010 22:58:11 -0000 Received: from unknown (HELO digraph.polyomino.org.uk) (joseph@127.0.0.2) by mail.codesourcery.com with ESMTPA; 8 Nov 2010 22:58:11 -0000 Received: from jsm28 (helo=localhost) by digraph.polyomino.org.uk with local-esmtp (Exim 4.72) (envelope-from ) id 1PFafC-0006FL-De; Mon, 08 Nov 2010 22:58:10 +0000 Date: Mon, 08 Nov 2010 23:14:00 -0000 From: "Joseph S. Myers" To: Richard Henderson cc: Steve Ellcey , Richard Guenther , gcc-patches@gcc.gnu.org Subject: Re: -mfused-madd vs -ffp-contract deprication? In-Reply-To: <4CD84DCB.5080806@redhat.com> Message-ID: References: <201011081911.oA8JBqS23929@lucas.cup.hp.com> <4CD84DCB.5080806@redhat.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org X-SW-Source: 2010-11/txt/msg00818.txt.bz2 On Mon, 8 Nov 2010, Richard Henderson wrote: > On 11/08/2010 11:11 AM, Steve Ellcey wrote: > > This patch seems to have broken -mno-fused-madd on IA64. I don't > > know if it has broken it on other platforms too. > > Probably. > > I wonder about making -mfused-madd a generic alias for -ffp-contract, > and removing it from the backends. With an appropriate warning, we > ought to be able to remove -mfused-madd in gcc 4.7. As I indicated in , this may depend on the actual intended semantics of existing -mfused-madd options (which I have not attempted to discern). -- Joseph S. Myers joseph@codesourcery.com