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sad16_sse2: merge 2 asm blocks

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Originally committed as revision 25617 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ramiro Polla 2010-10-31 21:20:20 +00:00
parent 0d0778b060
commit eed299b897
1 changed files with 7 additions and 10 deletions
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17
libavcodec/x86/motion_est_mmx.c
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@ -98,23 +98,20 @@ static int sad16_sse2(void *v, uint8_t *blk2, uint8_t *blk1, int stride, int h)
ASMALIGN(4)
"1: \n\t"
"movdqu (%1), %%xmm0 \n\t"
"movdqu (%1, %3), %%xmm1 \n\t"
"movdqu (%1, %4), %%xmm1 \n\t"
"psadbw (%2), %%xmm0 \n\t"
"psadbw (%2, %3), %%xmm1 \n\t"
"psadbw (%2, %4), %%xmm1 \n\t"
"paddw %%xmm0, %%xmm2 \n\t"
"paddw %%xmm1, %%xmm2 \n\t"
"lea (%1,%3,2), %1 \n\t"
"lea (%2,%3,2), %2 \n\t"
"lea (%1,%4,2), %1 \n\t"
"lea (%2,%4,2), %2 \n\t"
"sub $2, %0 \n\t"
" jg 1b \n\t"
: "+r" (h), "+r" (blk1), "+r" (blk2)
: "r" ((x86_reg)stride)
);
__asm__ volatile(
"movhlps %%xmm2, %%xmm0 \n\t"
"paddw %%xmm0, %%xmm2 \n\t"
"movd %%xmm2, %0 \n\t"
: "=r"(ret)
"movd %%xmm2, %3 \n\t"
: "+r" (h), "+r" (blk1), "+r" (blk2), "=r"(ret)
: "r" ((x86_reg)stride)
);
return ret;
}