Tiny improvements to generate_grain_uv_420
Before:
gen_grain_uv_ar2_8bpc_420_avx2: 29176.2
After:
gen_grain_uv_ar2_8bpc_420_avx2: 26794.0
Before:
gen_grain_uv_ar2_8bpc_420_avx2: 29176.2
After:
gen_grain_uv_ar2_8bpc_420_avx2: 26794.0
VideoLAN code repository instance