[x264-devel] commit: s/movdqa/movaps/g (Loren Merritt )

Zuxy Meng zuxy.meng at gmail.com
Tue Apr 22 09:47:39 CEST 2008


Hi,

2008/4/22 git version control <git at videolan.org>:
> x264 | branch: master | Loren Merritt <pengvado at akuvian.org> | Sun Apr 20 02:39:31 2008 -0600| [f892ee11a99c0b85e577e33bc1e695373b58584a]
>
> s/movdqa/movaps/g
>
> > http://git.videolan.org/gitweb.cgi/x264.git/?a=commit;h=f892ee11a99c0b85e577e33bc1e695373b58584a
> ---
>
>  common/x86/x86inc.asm |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/common/x86/x86inc.asm b/common/x86/x86inc.asm
> index f8ac814..307d246 100644
> --- a/common/x86/x86inc.asm
> +++ b/common/x86/x86inc.asm
> @@ -466,3 +466,7 @@ INIT_MMX
>     %endif
>  %endmacro
>
> +; substitutions which are functionally identical but reduce code size
> +%define movdqa movaps
> +%define movdqu movups
> +

I wonder if on some future CPUs the replacement will incur a
performance penalty...

-- 
Zuxy
Beauty is truth,
While truth is beauty.
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