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x86/hpeldsp: fix loop in {avg,avg_no_rnd}_pixels16_x2_mmx

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Handle it inside the __asm__() block.
Fixes fate-vc1_ilaced_twomv when using the gcc-usan toolchain.

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
pull/87/merge
James Almer 10 years ago
parent c5e337431b
commit 7292b0477a
1 changed files with 16 additions and 15 deletions
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  1. 31
      libavcodec/x86/hpeldsp_rnd_template.c

31
libavcodec/x86/hpeldsp_rnd_template.c
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@ -138,27 +138,28 @@ static void DEF(put, pixels8_y2)(uint8_t *block, const uint8_t *pixels, ptrdiff_
static void DEF(avg, pixels16_x2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
{
MOVQ_BFE(mm6);
JUMPALIGN();
do {
__asm__ volatile(
"movq %1, %%mm0 \n\t"
"movq 1%1, %%mm1 \n\t"
"movq %0, %%mm3 \n\t"
".p2align 3 \n\t"
"1: \n\t"
"movq (%1), %%mm0 \n\t"
"movq 1(%1), %%mm1 \n\t"
"movq (%2), %%mm3 \n\t"
PAVGB(%%mm0, %%mm1, %%mm2, %%mm6)
PAVGB_MMX(%%mm3, %%mm2, %%mm0, %%mm6)
"movq %%mm0, %0 \n\t"
"movq 8%1, %%mm0 \n\t"
"movq 9%1, %%mm1 \n\t"
"movq 8%0, %%mm3 \n\t"
"movq %%mm0, (%2) \n\t"
"movq 8(%1), %%mm0 \n\t"
"movq 9(%1), %%mm1 \n\t"
"movq 8(%2), %%mm3 \n\t"
PAVGB(%%mm0, %%mm1, %%mm2, %%mm6)
PAVGB_MMX(%%mm3, %%mm2, %%mm0, %%mm6)
"movq %%mm0, 8%0 \n\t"
:"+m"(*block)
:"m"(*pixels)
"movq %%mm0, 8(%2) \n\t"
"add %3, %1 \n\t"
"add %3, %2 \n\t"
"subl $1, %0 \n\t"
"jnz 1b \n\t"
:"+g"(h), "+S"(pixels), "+D"(block)
:"r"((x86_reg)line_size)
:"memory");
pixels += line_size;
block += line_size;
} while (--h);
}
static void DEF(avg, pixels8_y2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)

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