From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 5238 invoked by alias); 28 Dec 2007 14:20:35 -0000 Received: (qmail 5223 invoked by uid 22791); 28 Dec 2007 14:20:33 -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; Fri, 28 Dec 2007 14:20:27 +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 03AF161C1F2F for ; Fri, 28 Dec 2007 16:20:11 +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: Fri, 28 Dec 2007 22:47:00 -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: <200712281620.52479.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/msg00697.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 All these failures are gone when glibc is compiled with -O2 instead of -O3 = but=20 there are still 4 regressions : math/test-ildoubl Usual math problem : testing long double (inline functions) Failure: Test: expm1 (1) =3D=3D M_El - 1.0 Result: is: 1.71828182845904523532e+00 0xd.bf0a8b14576953500000p-3 should be: 1.71828182845904523543e+00 0xd.bf0a8b14576953600000p-3 difference: 1.08420217248550443401e-19 0x8.00000000000000000000p-66 ulp : 1.0000 max.ulp : 0.0000 Maximal error of `expm1' is : 1 ulp accepted: 0 ulp libio/tst-fopenloc2 libio/tst-fopenloc These two seems to be a new gcc regression, they crash when compiled with g= cc=20 trunk. elf/check-localplt These seems to be less harmful, shows memalign is missing from expected=20 output. Any ideas appreciated. Regards, ismail --=20 Never learn by your mistakes, if you do you may never dare to try again.