[FFmpeg-devel] [PATCH 3/3] x86: sbrdsp: implement SSE2 hf_apply_noise

[Michael Niedermayer]

On Tue, Apr 09, 2013 at 10:54:27PM +0000, Christophe Gisquet wrote:
> 233 to 107 cycles on Arrandale and Win64.
> Replacing the multiplication by s_m[m] by a pand and a pxor with
> appropriate vectors is slower. Unrolling is a 15 cycles win.
> A SSE version was 4 cycles slower.
> ---
>  libavcodec/aacsbrdata.h      |   6 ++-
>  libavcodec/x86/sbrdsp.asm    | 100 +++++++++++++++++++++++++++++++++++++++++++
>  libavcodec/x86/sbrdsp_init.c |  16 +++++++
>  3 files changed, 121 insertions(+), 1 deletion(-)

Applying this or 2/3 and this i get

libavcodec/x86/sbrdsp.asm:357: error: (PROLOGUE:2) cannot reference symbol `NREGS' in preprocessor
libavcodec/x86/sbrdsp.asm:364: error: (PROLOGUE:2) cannot reference symbol `NREGS' in preprocessor
libavcodec/x86/sbrdsp.asm:367: error: (LOAD_NST:1) cannot reference symbol `NREGS' in preprocessor
libavcodec/x86/sbrdsp.asm:373: error: (PROLOGUE:2) cannot reference symbol `NREGS' in preprocessor
libavcodec/x86/sbrdsp.asm:380: error: (PROLOGUE:2) cannot reference symbol `NREGS' in preprocessor
libavcodec/x86/sbrdsp.asm:383: error: (LOAD_NST:1) cannot reference symbol `NREGS' in preprocessor
libavcodec/x86/sbrdsp.asm:394: error: cannot reference symbol `NREGS' in preprocessor

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

When you are offended at any man's fault, turn to yourself and study your
own failings. Then you will forget your anger. -- Epictetus
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