... by selecting better instructions and avoiding sign-extend unsigned
smi.

Change-Id: I60b47f88dd34bfcda189716ac55d1fab13f3d4a1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3819112
Commit-Queue: Hao A Xu <hao.a.xu@intel.com>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82463}