tree d607cc97d549c020d0a38bf47709196998a702a3
parent f1c6d73d971056f6b2ffb5bf5532b901a3780de3
author Krishna Malladi <kmalladi@google.com> 1605313929 -0800
committer Yunqing Wang <yunqingwang@google.com> 1605813306 +0000

Add av1_calc_indices_dim1_avx2 for k_means

PERF analysis: C-code:1.49%  AVX2-code:0.28%

Speedtest:

BlockSize	Gain for 8 Centroids
8X8		4.47x
8X16		4.21x
8X32		4.65x
16X8		4.27x
16X16		4.62x
16X32		5.8x
32X8		4.67x
32X16		5.84x
32X32		7.64x
32X64		8.7x
64X32		8.61x
64X64		9.18x
16X64		7.62x
64X16		7.59x

Change-Id: I417bb9c9b676e4e5b71dbb718133a368c76d30c6