From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9681 invoked by alias); 29 Dec 2007 16:11:31 -0000 Received: (qmail 9672 invoked by uid 22791); 29 Dec 2007 16:11:31 -0000 X-Spam-Check-By: sourceware.org Received: from ns2.uludag.org.tr (HELO uludag.org.tr) (193.140.100.220) by sourceware.org (qpsmtpd/0.31) with ESMTP; Sat, 29 Dec 2007 16:11:11 +0000 Received: from ninjamobile.local (unknown [85.101.89.253]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by uludag.org.tr (Postfix) with ESMTP id 0B73D61E97F6 for ; Sat, 29 Dec 2007 18:11:01 +0200 (EET) From: Ismail =?utf-8?q?D=C3=B6nmez?= To: gcc@gcc.gnu.org Subject: Re: glibc 2.7 complex functions are possibly miscompiled by gcc 4.3 trunk Date: Sat, 29 Dec 2007 17:49:00 -0000 User-Agent: KMail/1.9.6 (enterprise 0.20071204.744707) References: <200712221911.32786.ismail@pardus.org.tr> In-Reply-To: <200712221911.32786.ismail@pardus.org.tr> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Message-Id: <200712291811.47936.ismail@pardus.org.tr> X-IsSubscribed: yes Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org X-SW-Source: 2007-12/txt/msg00702.txt.bz2 Saturday 22 December 2007 19:11:32 tarihinde Ismail D=C3=B6nmez =C5=9Funlar= =C4=B1 yazm=C4=B1=C5=9Ft=C4=B1: > Hi all, > > I am doing glibc 4.3 regression tests using gcc 4.3 trunk nearly every day > and I see 3 tests fail : > > math/test-float > math/test-ildoubl > math/test-ifloat > > The erorrs are all similar : > > Failure: Test: Imaginary part of: cacosh (-0 + 0 i) =3D=3D 0.0 + pi/2 i > Result: > is: 0.00000000000000000000e+00 0x0.00000000000000000000p+0 > should be: 1.57079637050628662109e+00 0x1.921fb600000000000000p+0 > difference: 1.57079637050628662109e+00 0x1.921fb600000000000000p+0 > ulp : 13176795.0000 > max.ulp : 0.0000 Replying to myself once again, these failures are due to -fgcse-after-reloa= d=20 flag, -O3 -fno-gcse-after-reload cures this. Any tips on how to debug this? Regards, ismail --=20 Never learn by your mistakes, if you do you may never dare to try again.