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arm64: ipred: 8 bpc NEON implementation of the Z2 function

Merged Martin Storsjö requested to merge mstorsjo/dav1d:arm64-z2 into master

Relative speedup over C code:

                         Cortex A53    A55    A72    A73    A76   Apple M1
intra_pred_z2_w4_8bpc_neon:    3.91   3.55   3.31   3.94   3.46   8.50
intra_pred_z2_w8_8bpc_neon:    5.68   5.67   4.31   5.31   4.34   5.83
intra_pred_z2_w16_8bpc_neon:   8.39   9.28   5.53   7.04   7.01   9.45
intra_pred_z2_w32_8bpc_neon:   7.01   8.01   5.04   6.32   5.48   7.48
intra_pred_z2_w64_8bpc_neon:   8.73  10.25   5.92   7.61   6.63  10.05

Merge request reports

Pipeline #339743 passed

Pipeline passed for 8af8244a on mstorsjo:arm64-z2

Test coverage 91.98% (0.01%) from 1 job
Approved by

Merged by Jean-Baptiste KempfJean-Baptiste Kempf 1 year ago (May 5, 2023 3:54pm UTC)

Merge details

  • Changes merged into master with 8af8244a.
  • Deleted the source branch.

Pipeline #339746 passed

Pipeline passed for 8af8244a on master

Test coverage 92.06% (0.01%) from 1 job

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