From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9618 invoked by alias); 15 Mar 2003 00:06:01 -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 9571 invoked by uid 71); 15 Mar 2003 00:06:00 -0000 Date: Sat, 15 Mar 2003 00:06:00 -0000 Message-ID: <20030315000600.9569.qmail@sources.redhat.com> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, From: Steven Bosscher Subject: Re: optimization/10087: [3.3/3.4 regression] optimizer produces wrong code when indexing 2D array Reply-To: Steven Bosscher X-SW-Source: 2003-03/txt/msg00919.txt.bz2 List-Id: The following reply was made to PR optimization/10087; it has been noted by GNATS. From: Steven Bosscher To: p.van-hoof@qub.ac.uk, gcc-gnats@gcc.gnu.org, gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org, gcc-prs@gcc.gnu.org Cc: Subject: Re: optimization/10087: [3.3/3.4 regression] optimizer produces wrong code when indexing 2D array Date: Sat, 15 Mar 2003 01:01:01 +0100 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10087 # gcc-3.3 10087.c -O # a.out result 1.000000e+00 # gcc-3.3 10087.c -O -fforce-mem -fstrength-reduce -fgcse # a.out result -1.997810e+00 Turning off any of these three options makes the output equal to unoptimized or -O. Greetz Steven