From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11793 invoked by alias); 13 Feb 2003 20:36:01 -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 11767 invoked by uid 71); 13 Feb 2003 20:36:01 -0000 Date: Thu, 13 Feb 2003 20:36:00 -0000 Message-ID: <20030213203601.11766.qmail@sources.redhat.com> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, From: Pete Gontier Subject: Re: target/8243: GCC 3.2 does not check for CMOV instruction before generating code Reply-To: Pete Gontier X-SW-Source: 2003-02/txt/msg00589.txt.bz2 List-Id: The following reply was made to PR target/8243; it has been noted by GNATS. From: Pete Gontier To: , wrote: > I don't think I fully understand the closure of this bug. I understand if by > i686 you really mean Pentium Pro. (I hope that's documented.) The claim that > it would be dumb for GCC to generate code which checks for CMOV before using > it also makes sense. However, if there were a way to tell GCC not to generate > CMOV instructions in the first place, that would seem reasonable, too, > assuming there are other i686 optimizations worth doing. Hmmm. Perhaps this is already present in the form of -march=c3. And from what I hear, CMOV was the only significant optimization for i686. If this is all true, then feel free to ignore my previous message. (Well, OK, I would still appreciate an off-list note.) -- Pete Gontier