arm64: looprestoration: Add a NEON implementation of SGR (!640) · Merge requests · VideoLAN / dav1d

Martin Storsjö requested to merge mstorsjo/dav1d:arm64-sgr into master Mar 07, 2019

Relative speedup vs (autovectorized) C code:

                      Cortex A53    A72    A73
selfguided_3x3_8bpc_neon:   2.91   2.12   2.68
selfguided_5x5_8bpc_neon:   3.18   2.65   3.39
selfguided_mix_8bpc_neon:   3.04   2.29   2.98

The relative speedup vs non-vectorized C code is around 2.6-4.6x.

arm64: looprestoration: Add a NEON implementation of SGR

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