This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: PATCH: Split AVX 32byte unalignd load/store

From: "H.J. Lu" <hjl dot tools at gmail dot com>
To: Andi Kleen <andi at firstfloor dot org>
Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>, Uros Bizjak <ubizjak at gmail dot com>
Date: Sun, 27 Mar 2011 09:38:49 -0700
Subject: Re: PATCH: Split AVX 32byte unalignd load/store
References: <AANLkTimnrqAtfukMkpZkjcLSEaJC2feHYnp9Bm0oh_Do@mail.gmail.com> <m21v1s34md.fsf@firstfloor.org>

On Sun, Mar 27, 2011 at 9:33 AM, Andi Kleen <andi@firstfloor.org> wrote:
> "H.J. Lu" <hjl.tools@gmail.com> writes:
>
>> Hi,
>>
>> Here is a patch to split AVX 32byte unalignd load/store:
>>
>> http://gcc.gnu.org/ml/gcc-patches/2011-02/msg00743.html
>>
>> It speeds up some SPEC CPU 2006 benchmarks by up to 6%.
>> OK for trunk?
>
> This should be also made default for sandy bridge
> (e.g. with -mtune=native and -mtune=corei7-2ndgen/avx)
>

It is turned on for TARGET_AVX, including SNB.

-- 
H.J.

References:
- PATCH: Split AVX 32byte unalignd load/store
  - From: H.J. Lu
- Re: PATCH: Split AVX 32byte unalignd load/store
  - From: Andi Kleen

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]