tree 92ac0673425e8bcbe8d492eeea8c3cb1f07fb5a2
parent de8acc153c3830015fe5dd9925bb6c74097dfba6
author Jonathan Wright <jonathan.wright@arm.com> 1699295981 +0000
committer James Zern <jzern@google.com> 1699572166 +0000

Refactor and optimize HBD Neon Wiener convolution

Refactor the high bitdepth Neon path for Wiener convolution. The
biggest change is removing a needless gather-load and subsequent
transpose. Additionally make use of the fact that Wiener filters are
symmetrical, adding mirrored source elements to reduce the number of
multiply-accumulate instructions.

Change-Id: Ifb48f14baca2dd31d2b8bab602980e0f2329f1c5