Port 7c78ad80

Original Commit Message:

    These were prototyped and not merged into the SIMD proposal.

R=zhin@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N

Change-Id: Ic6f604891908d0b4f1554951a57ef45e6e7d285e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2727655Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#73106}