[FFmpeg-devel] [PATCH] h264: assembly version of get_cabac for x86_64 with PIC

[Michael Niedermayer]

On Sat, Apr 14, 2012 at 01:50:21AM +0200, Roland Scheidegger wrote:
[...]

> +#ifdef BROKEN_RELOCATIONS
> +        BRANCHLESS_GET_CABAC("%4", "%q4", "(%1)", "%3", "%w3",
> +                             "%5", "%q5", "%k0", "%b0",
> +                             "%a11(%6)", "%a12(%6)", "%13")
> +#else
>          BRANCHLESS_GET_CABAC("%4", "(%1)", "%3", "%w3",
>                               "%5", "%k0", "%b0",
>                               "%a11(%6)", "%a12(%6)")
> +#endif
>  
>          "test $1, %4                            \n\t"
>          " jz 4f                                 \n\t"
>          "add  %10, %1                           \n\t"
>  
> +#ifdef BROKEN_RELOCATIONS
> +        BRANCHLESS_GET_CABAC("%4", "%q4", "(%1)", "%3", "%w3",
> +                             "%5", "%q5", "%k0", "%b0",
> +                             "%a11(%6)", "%a12(%6)", "%13")
> +#else
>          BRANCHLESS_GET_CABAC("%4", "(%1)", "%3", "%w3",
>                               "%5", "%k0", "%b0",
>                               "%a11(%6)", "%a12(%6)")
> +#endif
>  
>          "sub  %10, %1                           \n\t"
>          "mov  %2, %0                            \n\t"

these 2 ifdefs can be avoided by making the macro arguments between
the 2 variants match

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Into a blind darkness they enter who follow after the Ignorance,
they as if into a greater darkness enter who devote themselves
to the Knowledge alone. -- Isha Upanishad
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