From owner-freebsd-hackers Fri Sep 19 12:22:47 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id MAA02099 for hackers-outgoing; Fri, 19 Sep 1997 12:22:47 -0700 (PDT) Received: from brane.digs.iafrica.com (brane.digs.iafrica.com [196.7.162.25]) by hub.freebsd.org (8.8.7/8.8.7) with SMTP id MAA02092 for ; Fri, 19 Sep 1997 12:22:33 -0700 (PDT) Received: from iang by brane.digs.iafrica.com with local (Exim 1.71 #1) id 0xC8d6-0000oS-00; Fri, 19 Sep 1997 21:22:16 +0200 Subject: Re: FPE problem In-Reply-To: <9709191747.AA26610@watermarkgroup.com> from Luoqi Chen at "Sep 19, 97 01:47:45 pm" To: freebsd-hackers@freefall.freebsd.org Date: Fri, 19 Sep 1997 21:22:16 +0200 (SAT) X-Mailer: ELM [version 2.4ME+ PL32 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Message-Id: From: Ian Freislich Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Hi > The exception only occurs on certain machines. I have a dynamically linked > binary which I compiled on an around July -current 486 machine and it does > *not* do a FPE there. > > The machines where it occurs were built with > CFLAGS= -ffast-math -m486 -O2 I would be interested to see if the problem persists if the CFLAGS are set to either of these: CFLAGS= -ffast-math -O2 CFLAGS= -ffast-math -m486 I noticed subtle breakage in sh when compiled with both -m486 and -O2. I wonder if the same optimiser problem is at play here. -- igf (Ian Freislich)