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avcodec/x86: remove 3 sub in pred4x4_tm_vp8_8.

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before:
  411 decicycles in ff_pred4x4_tm_vp8_8_ssse3, 8388289 runs, 319 skips

after:
  389 decicycles in ff_pred4x4_tm_vp8_8_ssse3, 8388308 runs, 300 skips

Tested on i7 920.
This commit is contained in:
Clément Bœsch
2013-11-17 23:00:23 +01:00
parent c017f15dde
commit e0434cfcfc
1 changed files with 1 additions and 4 deletions
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5
libavcodec/x86/h264_intrapred.asm
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@@ -2486,10 +2486,7 @@ cglobal pred4x4_tm_vp8_8, 3,3
pshufb mm3, mm6 pshufb mm3, mm6
pshufb mm4, mm6 pshufb mm4, mm6
pshufb mm5, mm6 pshufb mm5, mm6
psubw mm2, mm7 psubw mm0, mm7
psubw mm3, mm7
psubw mm4, mm7
psubw mm5, mm7
paddw mm2, mm0 paddw mm2, mm0
paddw mm3, mm0 paddw mm3, mm0
paddw mm4, mm0 paddw mm4, mm0