Gentoo Archives: gentoo-dev

From:	Matt Turner <mattst88@g.o>
To:	gentoo-dev@l.g.o
Subject:	Re: [gentoo-dev] Re: Move x86/amd64 CPU extensions USE flags to a new USE_EXPAND variable
Date:	Sun, 12 Dec 2010 16:55:59
Message-Id:	`AANLkTim5-cnB36sdxnvhEtEZ=+2JDD91Abhq_7eWOMUj@mail.gmail.com`
In Reply to:	[gentoo-dev] Re: Move x86/amd64 CPU extensions USE flags to a new USE_EXPAND variable by Ryan Hill

1	On Sun, Dec 12, 2010 at 6:34 AM, Ryan Hill <dirtyepic@g.o> wrote:
2	> On Sat, 11 Dec 2010 18:57:58 +0100
3	> sse5 was a draft, it was never implemented.
4
5	I don't think it's quite as simple as that. According to Wikipedia,
6	AMD has significantly scaled back SSE5 so that it won't interfere with
7	AVX, but it will be implemented in Bulldozer and will consist of the
8	new XOP, FMA4, and CVT16 instruction sets.
9
10	Strangely enough, media-libs/spandsp already has an SSE5 USE flag.
11
12	Matt