From owner-freebsd-current@FreeBSD.ORG Sun Aug 25 10:09:16 2013 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 4D5D166B; Sun, 25 Aug 2013 10:09:16 +0000 (UTC) (envelope-from theraven@freebsd.org) Received: from theravensnest.org (theraven.freebsd.your.org [216.14.102.27]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 18F65251D; Sun, 25 Aug 2013 10:09:15 +0000 (UTC) Received: from [192.168.0.2] (cpc27-cmbg15-2-0-cust235.5-4.cable.virginmedia.com [86.27.188.236]) (authenticated bits=0) by theravensnest.org (8.14.5/8.14.5) with ESMTP id r7PA92QG021103 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Sun, 25 Aug 2013 10:09:03 GMT (envelope-from theraven@freebsd.org) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 6.5 \(1508\)) Subject: Re: GCC withdraw From: David Chisnall In-Reply-To: <20130824230615.GA55855@troutmask.apl.washington.edu> Date: Sun, 25 Aug 2013 11:08:57 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <1C36387A-B744-4E05-892E-AE2581D7E1ED@freebsd.org> References: <105E26EE-8471-49D3-AB57-FBE2779CF8D0@FreeBSD.org> <5217413A.9080105@passap.ru> <20130823111647.GT2951@home.opsec.eu> <521745F2.8050607@passap.ru> <20130824115158.GA88999@zxy.spb.ru> <20130824154217.GE3796@zxy.spb.ru> <20130824224204.GH3796@zxy.spb.ru> <20130824230615.GA55855@troutmask.apl.washington.edu> To: Steve Kargl X-Mailer: Apple Mail (2.1508) Cc: "Sam Fourman Jr." , toolchain@freebsd.org, Boris Samorodov , FreeBSD Current , Slawa Olhovchenkov X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 25 Aug 2013 10:09:16 -0000 On 25 Aug 2013, at 00:06, Steve Kargl = wrote: > On Sat, Aug 24, 2013 at 11:44:38PM +0100, David Chisnall wrote: >> On 24 Aug 2013, at 23:42, Slawa Olhovchenkov wrote: >>=20 >>> And i found PR about clang and mplayer: ports/176272 >>> This PR contains log with build error log. >>=20 >> Please file clang bugs at http://llvm.org/bugs/ >>=20 >=20 > As if this is going to help. >=20 > http://llvm.org/bugs/show_bug.cgi?id=3D8532 >=20 > 2 years, 9 month and counting. This bug relates to a corner case in complex floating point support, = which GCC in base doesn't get right either, and which affects a tiny = proportion of users and which comes with a hypothetical test case but no = evidence that any real-world code is affected by it. If you have some = real-world code that is compiled correctly by GCC but incorrectly by = clang as a result of this, then please update the bug. Oh, and it's worth noting that clang, as an extension, supports using = initialiser lists to create complex values and so this particular case = is trivial to avoid if you use this feature, which you will if you = create complex numbers using the macro that the C specification = introduced specifically to avoid this case. =20 David