GitLab

Note to sheriffs: we're expecting a ~400 kB size regression due to
a bug fix that causes more loop unrolling in this Clang version.

BUG=483026
NOPRESUBMIT=true
TBR=brettw

Review URL: https://codereview.chromium.org/1144933003

Cr-Commit-Position: refs/heads/master@{#330764}