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optimization and gcc 4.0 bug workaround patch by (Martin Drab >drab kepler.fjfi.cvut cz<)

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Originally committed as revision 3945 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Martin Drab 2005-02-07 17:09:48 +00:00 committed by Michael Niedermayer
parent c4ac052b85
commit 4d9ae03b09
1 changed files with 12 additions and 16 deletions
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28
libavcodec/i386/dsputil_mmx.c
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@ -672,26 +672,22 @@ static void h263_h_loop_filter_mmx(uint8_t *src, int stride, int qscale){
"punpcklwd %%mm0, %%mm1 \n\t"
"punpckhwd %%mm4, %%mm3 \n\t"
"punpckhwd %%mm0, %%mm6 \n\t"
"movd %%mm5, %0 \n\t"
"movd %%mm5, (%0) \n\t"
"punpckhdq %%mm5, %%mm5 \n\t"
"movd %%mm5, %1 \n\t"
"movd %%mm3, %2 \n\t"
"movd %%mm5, (%0,%2) \n\t"
"movd %%mm3, (%0,%2,2) \n\t"
"punpckhdq %%mm3, %%mm3 \n\t"
"movd %%mm3, %3 \n\t"
"movd %%mm1, %4 \n\t"
"movd %%mm3, (%0,%3) \n\t"
"movd %%mm1, (%1) \n\t"
"punpckhdq %%mm1, %%mm1 \n\t"
"movd %%mm1, %5 \n\t"
"movd %%mm6, %6 \n\t"
"movd %%mm1, (%1,%2) \n\t"
"movd %%mm6, (%1,%2,2) \n\t"
"punpckhdq %%mm6, %%mm6 \n\t"
"movd %%mm6, %7 \n\t"
: "=m" (*(uint32_t*)(src + 0*stride)),
"=m" (*(uint32_t*)(src + 1*stride)),
"=m" (*(uint32_t*)(src + 2*stride)),
"=m" (*(uint32_t*)(src + 3*stride)),
"=m" (*(uint32_t*)(src + 4*stride)),
"=m" (*(uint32_t*)(src + 5*stride)),
"=m" (*(uint32_t*)(src + 6*stride)),
"=m" (*(uint32_t*)(src + 7*stride))
"movd %%mm6, (%1,%3) \n\t"
:: "r" (src),
"r" (src + 4*stride),
"r" ((long) stride ),
"r" ((long)(3*stride))
);
}