SSE requires operand0 to be a register, since we don't have memory
alignment yet. AVX can have performance issues for unaligned access.

Bug: v8:9198,chromium:1106285
Change-Id: Ic587d9e0d601664cf6010061d74b22740ba47702
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2303590Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68906}