From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19847 invoked by alias); 1 Mar 2003 14:36:00 -0000 Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-prs-owner@gcc.gnu.org Received: (qmail 19832 invoked by uid 71); 1 Mar 2003 14:36:00 -0000 Date: Sat, 01 Mar 2003 14:36:00 -0000 Message-ID: <20030301143600.19831.qmail@sources.redhat.com> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, From: Tim Prince Subject: Re: middle-end/7198: ia64.md missing usual fnma patterns Reply-To: Tim Prince X-SW-Source: 2003-03/txt/msg00020.txt.bz2 List-Id: The following reply was made to PR target/7198; it has been noted by GNATS. From: Tim Prince To: Steven Bosscher , gcc-gnats@gcc.gnu.org, gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org, gcc-prs@gcc.gnu.org, tprince@computer.org Cc: Subject: Re: middle-end/7198: ia64.md missing usual fnma patterns Date: Sat, 1 Mar 2003 06:28:31 -0800 On Saturday 01 March 2003 04:01, Steven Bosscher wrote: > http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc& >pr=7198 > > Does this bug still exist in the 3.3 branch and mainline? It looks like > the patterns from your patch are already in ia64.md. > > Greetz > Steven That's interesting; I don't find them in the gcc-20030224 (3.3) snapshot. In fact, I just checked this week, and that snapshot was not employing fnma instructions in my test code, so I applied this patch again. The patterns which came in ia64.md require a sign change, to match the more common source code pattern, so it seems that a pattern with the sign change already applied is needed. I don't find my patterns in the gcc-3.2.2 either, so I just tried applying the patch (on my ia32 laptop here at home), and it appears to take successfully. My co-workers have not found a way to access CVS from our ia64 machines at the office, so I have always dealt with snapshots. Thanks for looking at this. Not exactly a bug, it's a missing optimization. -- Tim Prince