There exists load chain as below that can not be packed due to the
effect dependency to irrelevant load:
[Load1] -> [Irrelevant Load] -> [Load2]
We can avoid breaking this dependency by reordering the load chain so
[Load1] and [Load2] can be packed:
[Load1] -> [Load2] -> [Irrelevant Load]
Bug: v8:12716
Change-Id: I298a8fd3d44d0a147479e1f80ac67b6a491740ec
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4134474
Commit-Queue: Hao A Xu <hao.a.xu@intel.com>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/main@{#85379}
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