[FFmpeg-devel] [PATCH] x86/vp9dsp: fix clobbering of xmm6 on IDCT sse2 functions

[Ronald S. Bultje]

Hi,

On Sat, Feb 7, 2015 at 8:33 PM, James Almer <jamrial at gmail.com> wrote:

> Signed-off-by: James Almer <jamrial at gmail.com>
> ---
>  libavcodec/x86/vp9itxfm.asm | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/libavcodec/x86/vp9itxfm.asm b/libavcodec/x86/vp9itxfm.asm
> index 64859a0..bfe427f 100644
> --- a/libavcodec/x86/vp9itxfm.asm
> +++ b/libavcodec/x86/vp9itxfm.asm
> @@ -407,6 +407,9 @@ IDCT_4x4_FN ssse3
>  %macro IADST4_FN 5
>  INIT_MMX %5
>  cglobal vp9_%1_%3_4x4_add, 3, 3, 6 + notcpuflag(ssse3), dst, stride,
> block, eob
> +%if WIN64 && notcpuflag(ssse3)
> +WIN64_SPILL_XMM 7
> +%endif
>      movdqa            xmm5, [pd_8192]
>      mova                m0, [blockq+ 0]
>      mova                m1, [blockq+ 8]


Ehw... Well... Crap... OK I guess. (Can't think of anything better.)

Ronald