Hi,

2011/7/28 Jason Garrett-Glaser <[email protected]>:
> ---
>  libavcodec/x86/dsputil_mmx.c     |    4 +-
>  libavcodec/x86/h264_chromamc.asm |   44 ++++++++++++++++++-------------------
>  libavcodec/x86/h264_deblock.asm  |   19 +++++++--------
>  libavcodec/x86/h264_idct.asm     |   28 ++++++++++++------------
>  libavcodec/x86/x86util.asm       |    4 +-
>  5 files changed, 48 insertions(+), 51 deletions(-)

Most of this looks OK.

> -    movd          m0, [r1     ]
> -    punpcklbw     m0, [r1   +1]
> -    add           r1, r2
>  .next2rows
> -    movd          m1, [r1     ]
> -    movd          m3, [r1+r2  ]
> -    punpcklbw     m1, [r1   +1]
> -    punpcklbw     m3, [r1+r2+1]
> +    movd          m1, [r1+r2*1  ]
> +    movd          m3, [r1+r2*2  ]
> +    punpcklbw     m1, [r1+r2*1+1]
> +    punpcklbw     m3, [r1+r2*2+1]
>     lea           r1, [r1+r2*2]
>     movq          m2, m1
>     movq          m4, m3

Something like this leaves r1 in a different state (r2 lower). That's
intentional right? (I assume it passes fate, I just thought it was
weird.)

Ronald
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