This simplifies some call sites as they do not need to worry about
stores to external pointer fields (especially lazily initialized ones)
triggering GCs. This also keeps the sandbox and non-sandbox mode more
consistent, as these stores will never trigger GC in non-sandbox builds.
Since there must be millions of objects that own the external pointer
table entries, the chances are quite high that GCs will anyway be
scheduled. If not, we should instead see if we can introduce an API
to only schedule incremental marking but not perform GC finalization.

Bug: v8:13535
Cr-Commit-Position: refs/heads/main@{#84508}
(cherry picked from commit 852aa18)

Change-Id: I6e7b927ec722b7c9aff2fc6e620b70c94b29db41
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4086221
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Samuel Groß <saelo@chromium.org>
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Change-Id: I9959ca7f1aba9e51f5f3179a079a120882bdc160
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Otherwise it's propagated to the parent

Bug: chromium:1394973
(cherry picked from commit e1e0890)

Change-Id: I723e7b289b9aa3016cc466bd349898d7c7e0ffe9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4108349
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
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Change-Id: If72ddb9fdcc1f33fba2ef13277a8485d4c495ed5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4107472
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When loading a 32-bit value from the stack, just load 32 bit and
zero-extend them into the target register, instead of loading the full
64 bits.

As there are things to fix (see https://crbug.com/1356461), we only
enable this optimization for Wasm for now.

Also include the related fix https://crrev.com/c/4096985.

R=mslekova@chromium.org

(cherry picked from commit 2ee5244)
(cherry picked from commit a382099)

Bug: chromium:1395604
Change-Id: I54a2182ada6fadbfcf5565f0dc8d4f477ecff393
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4110897
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
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Change-Id: I8c928228c51f32689687b3929439a214d3cd4a1e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4111702
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After computing the branch offset but before emitting the actual branch,
we should not emit a constant pool. Otherwise the previously computed
offset would be off.

Instead of handling this indirectly via the Assembler::branch_offset
method, do this directly in the Assembler::b method (and friends), so it
is not missed on other call sites.

R=nicohartmann@chromium.org

(cherry picked from commit 9be597d)
Bug: chromium:1399424

Change-Id: Ie30ba70508b4fb8913f79e049a33108608915704
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4118864
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
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Change-Id: I2d2232348e3c8d8bfc3e837bb564dc20dcbae270
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