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Re: [patch part, libgcc] Add AVX-specific matmul
- From: Markus Trippelsdorf <markus at trippelsdorf dot de>
- To: Thomas Koenig <tkoenig at netcologne dot de>
- Cc: gcc-patches <gcc-patches at gcc dot gnu dot org>, "fortran at gcc dot gnu dot org" <fortran at gcc dot gnu dot org>
- Date: Mon, 5 Dec 2016 16:55:20 +0100
- Subject: Re: [patch part, libgcc] Add AVX-specific matmul
- Authentication-results: sourceware.org; auth=none
- References: <31a0faab-ab00-c6e4-705d-872fda554ca9@netcologne.de>
On 2016.11.30 at 08:17 +0100, Thomas Koenig wrote:
> Hello world,
>
> the patch at https://gcc.gnu.org/ml/fortran/2016-11/msg00246.html
> (the one going to gcc-patches was rejected due to size of
> regernerated files) contains one libgcc change, which exposes
> the __cpu_model interface fox i386 to libgfortran.
>
> The Fortran bits are OKd, but I need an approval from a libgcc
> maintainer (or some hint how to do this better :-).
>
> I have attached the libgcc-specific part of the patch.
FYI this gives nice additional speedups for 178.galgel:
http://gcc.opensuse.org/SPEC/CFP/sb-czerny-head-64/178_galgel_recent_big.png
--
Markus