From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30263 invoked by alias); 18 Jan 2009 17:21:11 -0000 Received: (qmail 30216 invoked by alias); 18 Jan 2009 17:21:02 -0000 Date: Sun, 18 Jan 2009 17:21:00 -0000 Message-ID: <20090118172102.30215.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug middle-end/38905] [4.3 Regression] 464.h264ref in SPEC CPU 2006 miscompiled In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "rguenther at suse dot de" Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2009-01/txt/msg02016.txt.bz2 ------- Comment #3 from rguenther at suse dot de 2009-01-18 17:21 ------- Subject: Re: [4.3 Regression] 464.h264ref in SPEC CPU 2006 miscompiled On Sun, 18 Jan 2009, hjl dot tools at gmail dot com wrote: > ------- Comment #2 from hjl dot tools at gmail dot com 2009-01-18 17:19 ------- > (In reply to comment #1) > > It is caused by revision 142040: > > > > http://gcc.gnu.org/ml/gcc-cvs/2008-11/msg00541.html > > > > The patch is at > > http://gcc.gnu.org/ml/gcc-patches/2008-11/msg01040.html Can you check if it is fixed by -fno-strict-aliasing and/or --param max-fields-for-field-sensitive=0? I suspect we need to backport some PTA fixes :/ Richard. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38905