Date: Wed, 9 Mar 2011 16:18:20 -0500 From: David Schultz <das@FreeBSD.ORG> To: Martin Matuska <mm@FreeBSD.ORG> Cc: gerald@FreeBSD.ORG, current@FreeBSD.ORG Subject: Re: [TESTING] ssse3 backport from gcc 4.3 Message-ID: <20110309211820.GA46520@zim.MIT.EDU> In-Reply-To: <4D7799FD.9040008@FreeBSD.org> References: <4D7799FD.9040008@FreeBSD.org>
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On Wed, Mar 09, 2011, Martin Matuska wrote: > I have prepared a patch that finishes the "core2" support part and > backports from gcc-4.3 > the SSSE3 instruction set (-mssse3, -mno-ssse3). > It is enabled for -march=core2 by default. > > Testing and comments are welcome. > > Patch: > http://people.freebsd.org/~mm/patches/head-gcc-ssse3.patch > > The backport covers three GPLv2 revisions from gcc 4.3: > http://gcc.gnu.org/viewcvs?view=revision&revision=117958 (applies cleanly) > http://gcc.gnu.org/viewcvs?view=revision&revision=121687 (small adjustment) > http://gcc.gnu.org/viewcvs?view=revision&revision=121726 (small adjustment) > http://gcc.gnu.org/viewcvs?view=revision&revision=123639 (small adjustment) Cool. Ccing gerald@, who has requested that he be kept in the loop on gcc changes in the tree. The proliferation of -mno-sse -mno-sse2 -mno-sse3 options in the makefiles is probably not needed: I'm pretty sure -mno-sse implies the other two, unless -msse3 is specified explicitly. One suggestion from prior experience merging upstream gcc changes: Peruse the bug database for anything significant that was reported or fixed after the above patches were merged.
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