This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH] Optionally emit SSE ABI libm calls on x86
- From: Richard Guenther <richard dot guenther at gmail dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Thu, 7 Jul 2005 18:51:49 +0200
- Subject: Re: [PATCH] Optionally emit SSE ABI libm calls on x86
- References: <Pine.LNX.4.58.0507071319060.9561@wotan.suse.de>
- Reply-to: Richard Guenther <richard dot guenther at gmail dot com>
On 7/7/05, Richard Guenther <rguenther@suse.de> wrote:
> Hi!
>
> This patch implements emitting calls to (certain) libm functions
> with an SSE ABI using symbols of the form __libm_sse2_*, like the
> Intel compiler does. This emitting is guarded by the new target
> flag -msselibm and also only enabled, if using -mfpmath=sse and
> SSE2 is enabled. If you have libimf.a from the Intel compiler
> around you can start testing the performance impact of this
> right now, otherwise you have to wait for libc exporting these
> symbols (patch ready).
For reference, this patch was posted here:
http://sources.redhat.com/ml/libc-alpha/2005-07/msg00007.html
Richard.