From owner-freebsd-stable@FreeBSD.ORG Wed Oct 24 08:12:42 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 3F5611DA for ; Wed, 24 Oct 2012 08:12:42 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from mail.zoral.com.ua (mx0.zoral.com.ua [91.193.166.200]) by mx1.freebsd.org (Postfix) with ESMTP id 9316F8FC08 for ; Wed, 24 Oct 2012 08:12:39 +0000 (UTC) Received: from skuns.kiev.zoral.com.ua (localhost [127.0.0.1]) by mail.zoral.com.ua (8.14.2/8.14.2) with ESMTP id q9O8Ci4P046370; Wed, 24 Oct 2012 11:12:44 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: from deviant.kiev.zoral.com.ua (kostik@localhost [127.0.0.1]) by deviant.kiev.zoral.com.ua (8.14.5/8.14.5) with ESMTP id q9O8CWsD030034; Wed, 24 Oct 2012 11:12:32 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: (from kostik@localhost) by deviant.kiev.zoral.com.ua (8.14.5/8.14.5/Submit) id q9O8CWio030033; Wed, 24 Oct 2012 11:12:32 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: deviant.kiev.zoral.com.ua: kostik set sender to kostikbel@gmail.com using -f Date: Wed, 24 Oct 2012 11:12:32 +0300 From: Konstantin Belousov To: Volodymyr Kostyrko Subject: Re: wine, gcc and clang with CPUTYPE Message-ID: <20121024081232.GA35915@deviant.kiev.zoral.com.ua> References: <50879F62.2010004@gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="OgaV/uj8Af8zlSb7" Content-Disposition: inline In-Reply-To: <50879F62.2010004@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Virus-Scanned: clamav-milter 0.95.2 at skuns.kiev.zoral.com.ua X-Virus-Status: Clean X-Spam-Status: No, score=-4.0 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on skuns.kiev.zoral.com.ua Cc: freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 Oct 2012 08:12:42 -0000 --OgaV/uj8Af8zlSb7 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Oct 24, 2012 at 10:57:22AM +0300, Volodymyr Kostyrko wrote: > Hi all. >=20 > I just have taken some time to inspect CPUTYPE support for clang. It=20 > seems to me that clang generates incorrect code in some cases. >=20 > The first failure point I discovered was inability to build gcc from=20 > sources or compile something with gcc. Code produced by gcc seem to fail= =20 > whether this was gcc compiled from bootstrap or anything else: >=20 > http://lists.freebsd.org/pipermail/freebsd-multimedia/2012-October/013469= =2Ehtml >=20 > I started testing by commenting out CPUTYPE in make.conf. After first=20 > rebuild I also updated the ports and installed new version of=20 > wine-devel. And to my surprise it works like a charm. Rolling back to=20 > the world built with CPUTYPE=3Dnative makes wine break again. >=20 > To my surprise CPUTYPE was not the cause of wine failure per se. Wine=20 > continues to work for k6, k6-3, athlon and athlon-tbird. But it=20 > completely fails when the world was built with athlon-4 and athlon-xp. >=20 > Trying to recompile gcc I also found that everything works and yet again= =20 > up to the athlon-tbird. >=20 > My conclusion is: clang incorrectly produces code within one of core=20 > libraries (I haven't tested which one yet, but I suspect libgcc_s.so)=20 > when optimizing for athlon-4 or athlon-xp. I am not versed in the AMD marketing monikers. I guess that athlon-{4,xp} turns on SSE and might be SSE2, while previous selections turn it off. Can you confirm/deny this ? BTW, did you tested on i386 or amd64 ? --OgaV/uj8Af8zlSb7 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (FreeBSD) iEYEARECAAYFAlCHovAACgkQC3+MBN1Mb4hpBwCgmay2k/V/xNJeenBdNbV7mAlC pa8An2MqI9+nk1HAbKaTFr3ni/twtcDm =DfKs -----END PGP SIGNATURE----- --OgaV/uj8Af8zlSb7--