tree 46938a1cbc6b38f89c94204884222ff7ed0a4d1e
parent 14f194cdfca4ab26c246b1c38da9aacf40b9f635
author Nigel Tao <nigeltao@golang.org> 1611529533 +1100
committer Nigel Tao <nigeltao@golang.org> 1611529533 +1100

Have std/png filter_1_distance_? use more SIMD

This commit will soon be followed by a rollback, but it is committed
anyway so that we can refer to these numbers in the git log.

wuffs_png_decode_filt_1_dist_3/clang9  1.82GB/s ± 0%  1.03GB/s ± 0%  -43.49%  (p=0.008 n=5+5)
wuffs_png_decode_filt_1_dist_4/clang9  6.02GB/s ± 0%  5.23GB/s ± 0%  -13.05%  (p=0.008 n=5+5)

wuffs_png_decode_filt_1_dist_3/gcc10   1.82GB/s ± 1%  1.03GB/s ± 0%  -43.36%  (p=0.008 n=5+5)
wuffs_png_decode_filt_1_dist_4/gcc10   5.42GB/s ± 0%  5.13GB/s ± 1%   -5.39%  (p=0.008 n=5+5)