On Wed, Jun 29, 2011 at 09:49:52AM +0200, Jan Hubicka wrote:
> > * config/i386/i386.opt (mprefer-avx128): Redefine the flag as a Mask
> > option.
> >
> > * config/i386/i386.h (ix86_tune_indices): Add X86_TUNE_AVX128_OPTIMAL
> > entry.
> > (TARGET_AVX128_OPTIMAL): New definition.
> >
> * config/i386/i386.opt (mprefer-avx128): Redefine the flag as a Mask
> option.
>
> * config/i386/i386.h (ix86_tune_indices): Add X86_TUNE_AVX128_OPTIMAL
> entry.
> (TARGET_AVX128_OPTIMAL): New definition.
>
> * config/i386/i386.c (initial_ix86_tune_features): Initializ
-patches@gcc.gnu.org; rguent...@suse.de
Subject: RE: [PATCH, i386] Enable -mprefer-avx128 by default for Bulldozer
Is this patch OK to commit to trunk?
Also I would like to backport this patch to gcc 4.6 branch. Do I have to send a
separate
request or use this one?
Thanks,
Changpeng
: Uros Bizjak; gcc-patches@gcc.gnu.org; rguent...@suse.de
Subject: RE: [PATCH, i386] Enable -mprefer-avx128 by default for Bulldozer
Hi,
I have no preference in tune feature coding. But I agree with you it's better
to
put similar things together. I modified the code following your suggestion
[hubi...@ucw.cz]
Sent: Thursday, June 23, 2011 6:20 PM
To: Fang, Changpeng
Cc: Uros Bizjak; gcc-patches@gcc.gnu.org; hubi...@ucw.cz; rguent...@suse.de
Subject: Re: [PATCH, i386] Enable -mprefer-avx128 by default for Bulldozer
Hi,
> --- a/gcc/config/i386/i386.c
> +++ b/gcc/config/i386/i386.c
&
Hi,
> --- a/gcc/config/i386/i386.c
> +++ b/gcc/config/i386/i386.c
> @@ -2128,6 +2128,9 @@ static const unsigned int
> x86_avx256_split_unaligned_load
> static const unsigned int x86_avx256_split_unaligned_store
>= m_COREI7 | m_BDVER1 | m_GENERIC;
>
> +static const unsigned int x86_prefer_av
On Thu, Jun 23, 2011 at 03:41:01PM -0500, Fang, Changpeng wrote:
> This patch enables 128-bit avx instruction generation for the auto-vectorizer
> for AMD bulldozer
> machines. This enablement gives additional ~3% improvement on polyhedron 2005
> and cpu2006
> floating point programs.
>
> The p
Hi,
This patch enables 128-bit avx instruction generation for the auto-vectorizer
for AMD bulldozer
machines. This enablement gives additional ~3% improvement on polyhedron 2005
and cpu2006
floating point programs.
The patch passed bootstrapping on a x86_64-unknown-linux-gnu system with
Bulld
