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Re: [PATCH 1/14] [x86_64] Vector math functions (vector cos)
- From: Joseph Myers <joseph at codesourcery dot com>
- To: Andrew Senkevich <andrew dot n dot senkevich at gmail dot com>
- Cc: libc-alpha <libc-alpha at sourceware dot org>
- Date: Mon, 8 Jun 2015 17:08:41 +0000
- Subject: Re: [PATCH 1/14] [x86_64] Vector math functions (vector cos)
- Authentication-results: sourceware.org; auth=none
- References: <CAMXFM3t+v7zYEmvWQxV9aRmJB6Ag2hQgQ56cZJTDy=siRBszDw at mail dot gmail dot com> <alpine dot DEB dot 2 dot 10 dot 1505181711240 dot 20209 at digraph dot polyomino dot org dot uk> <CAMXFM3vG=5KVLuG4HJ6StDp13YcpeRLqPkd=3BJhGt1mu5AWPA at mail dot gmail dot com> <alpine dot DEB dot 2 dot 10 dot 1505201529070 dot 23246 at digraph dot polyomino dot org dot uk> <CAMXFM3u57e==ySd8TF7+qFwmrswcT1jqzcN-n_JDPF45+77Z0g at mail dot gmail dot com> <CAMXFM3uuDy3f2hb3Xg+MNmseqjmBFqUF1euRF_g5XW+wo7JSSQ at mail dot gmail dot com> <alpine dot DEB dot 2 dot 10 dot 1505221523570 dot 16611 at digraph dot polyomino dot org dot uk> <CAMXFM3sXNLR3_HPpkUBp_9Ue=-RYZYoidbCwP23Cp9HX_X+t5A at mail dot gmail dot com> <alpine dot DEB dot 2 dot 10 dot 1506041649010 dot 12011 at digraph dot polyomino dot org dot uk> <CAMXFM3uCXy6WS6xDNzWhjdHYAfYUen3srj1RdpBsb1vCfB_25Q at mail dot gmail dot com> <alpine dot DEB dot 2 dot 10 dot 1506051642580 dot 26931 at digraph dot polyomino dot org dot uk> <CAMXFM3tFo1KU3y-55zzWVdT9GAG_ND15_ZwGNkZQVp2TCoBgJA at mail dot gmail dot com> <alpine dot DEB dot 2 dot 10 dot 1506081302340 dot 25225 at digraph dot polyomino dot org dot uk> <CAMXFM3v5rwYFhU9rGhv5ypnM+jw4egJJLjbVbh6Tkwz46khppg at mail dot gmail dot com>
On Mon, 8 Jun 2015, Andrew Senkevich wrote:
> diff --git a/NEWS b/NEWS
> index 881e61c..5e223a1 100644
> --- a/NEWS
> +++ b/NEWS
> @@ -50,6 +50,14 @@ Version 2.22
> * CVE-2014-8121 The NSS backends shared internal state between the getXXent
> and getXXbyYY NSS calls for the same database, causing a denial-of-service
> condition in some applications.
> +
> +* Added vector math library named libmvec with the following vectorized x86_64
> + implementations: cos.
> + The library can be disabled with --disable-mathvec. Use of the functions is
> + enabled with -fopenmp -ffast-math starting from -O1 for GCC version >= 4.9.0.
> + The library is linked in as needed when using -lm (no need to specify -lmvec
> + explicitly).
> + Visit <https://sourceware.org/glibc/wiki/libmvec> for detailed information.
This seems reasonable as a starting point (given install.texi updated as
well). The release manager may wish to edit the NEWS entries, of course.
--
Joseph S. Myers
joseph@codesourcery.com