No clearly sampled effect on performance but should require fewer
instructions. May lead to future improvements.

Bug: angleproject:3014
Change-Id: I64e155926ae2c553b059265780e72e91f91f097c
Reviewed-on: https://chromium-review.googlesource.com/c/1393906
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>