Date: Fri, 5 Jun 2009 09:45:44 +0200 From: Erik Cederstrand <erik@cederstrand.dk> To: Roman Divacky <rdivacky@freebsd.org> Cc: Ed Schouten <ed@80386.nl>, hackers@FreeBSD.org, current@FreeBSD.org Subject: Re: Clang: now available from a SVN server near you! Message-ID: <DF7D22CF-94C1-4B27-A216-E4AD5FEBCA53@cederstrand.dk> In-Reply-To: <20090604123801.GA34971@freebsd.org> References: <20090604093831.GE48776@hoeg.nl> <31BD4D08-6558-46FF-9B93-CF8249AAC461@cederstrand.dk> <20090604123801.GA34971@freebsd.org>
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--Apple-Mail-443--407227785 Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Hi Roman Den 04/06/2009 kl. 14.38 skrev Roman Divacky: > > you could use llvm-ld (see the wiki for instructions how to do it). > there's also some > effort to make gnu ld usable with llvm LTO and I guess the patch > could be backported > to our ld. I guess As I understand the reply from Eli Friedman[1] this is not possible without at least some hacking. The LTO work in GNU ld[2] is under GPLv3[3], as is gold[4], which makes backporting patches a sticky issue. Erik [1] http://lists.cs.uiuc.edu/pipermail/cfe-dev/2009-June/005296.html [2] http://gcc.gnu.org/wiki/LinkTimeOptimization [3] http://gcc.gnu.org/svn/gcc/branches/lto/lto-plugin/lto-plugin.c [4] http://sourceware.org/cgi-bin/cvsweb.cgi/src/gold/gold.cc?rev=1.63&content-type=text/x-cvsweb-markup&cvsroot=src --Apple-Mail-443--407227785--
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