ref: 7b742da63e4b829ba013670dd838d263f5df8956
parent: 2057d3ef757a18e6bb005812a9912748ae4c7610
author: Johann <johannkoenig@google.com>
date: Tue May 2 03:31:05 EDT 2017
neon variance: process 4x blocks Continue processing sets of 16 values. Plenty of improvement for 4x8 (doubles the speed) but only about 30% for 4x4. BUG=webm:1422 Change-Id: Ib8dd96f75d474f0348800271d11e58356b620905