[FFmpeg-devel] libavcodec/exr : add x86 SIMD for predictor

[Martin Vignali]

Hello,

in attach new patch

pass fate test for me (X86_64 osX)

Check asm (Kaby Lake)

checkasm: all 5 tests passed
predictor_c: 11042.9
predictor_ssse3: 1736.4
predictor_avx: 1675.4
predictor_avx2: 1245.4
...

Martin
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