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Re: [PATCH] Compile AVX libm functions with -mavx -mprefer-avx128

From: Mike Frysinger <vapier at gentoo dot org>
To: "H.J. Lu" <hjl dot tools at gmail dot com>
Cc: libc-alpha at sourceware dot org
Date: Tue, 2 Oct 2012 18:06:18 -0400
Subject: Re: [PATCH] Compile AVX libm functions with -mavx -mprefer-avx128
References: <CAMe9rOrnn9r3viYefdNb_dbx25Lp9HqXXEK9tj23NsyDE+41aQ@mail.gmail.com> <201210021712.41748.vapier@gentoo.org> <CAMe9rOo6A_x=C7ykBDvAw7c8OxJV9WJdDs0Wt+jQdn=oBkU2PA@mail.gmail.com>

On Tuesday 02 October 2012 17:28:12 H.J. Lu wrote:
> On Tue, Oct 2, 2012 at 2:12 PM, Mike Frysinger <vapier@gentoo.org> wrote:
> > On Tuesday 02 October 2012 16:54:11 H.J. Lu wrote:
> >> Here is a patch to compile AVX libm functions with -mavx
> >> -mprefer-avx128.
> > 
> > do we need to test for -mavx too ?  that was added to gcc-4.4, but our
> > current min ver is gcc-4.3 ...
> 
> It checks -mprefer-avx128. All GCC which support  -mprefer-avx128 also
> support -mavx.

right, i meant something else, but it doesn't matter as the logic is wrapped 
the way you said
-mike

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References:
- [PATCH] Compile AVX libm functions with -mavx -mprefer-avx128
  - From: H.J. Lu
- Re: [PATCH] Compile AVX libm functions with -mavx -mprefer-avx128
  - From: Mike Frysinger
- Re: [PATCH] Compile AVX libm functions with -mavx -mprefer-avx128
  - From: H.J. Lu

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