tree 8c47da1baa41b950cfd36ce854a018ed610d5a7c
parent 818380631ec2e3ccd4b270611dcdc0a5cd97aeef
author Jonathan Wright <jonathan.wright@arm.com> 1681811815 +0100
committer James Zern <jzern@google.com> 1682363378 +0000

Refactor Neon SAD4D functions

1) Re-roll loops for large block widths to avoid source duplication -
   tightening things up before adding averaging SAD4D Neon functions
   in a subsequent patch.
2) Change inner-loop instances of "i * stride" to increment a pointer
   offset variable at the end of each loop iteration as some
   compilers failed to recognize and simplify the strided increment
   pattern.
3) As a result of 2), we also count down in outer loops and test
   i != 0 for the termination condition.

Change-Id: I2eed2ce794248ae6f961ccc06cdc61bef9bd49bf