This opcode is being removed in favor of pre-declared non-defaultable
locals (details are still TBD).

Bug: v8:9495
Change-Id: I96ac053a1b5a852310c5dc0bbaeab0cbf5384663
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3738743
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81496}

Change-Id: I4fe880b8d0f3c6886b7bf2f0aa497068f4cfd9a5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3735134
Auto-Submit: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81495}

Most often, the {ValueType::Ref} constructor was called with a
constant nullability. To make things more convenient, this CL renames
{Ref} to {RefMaybeNull}, and introduces {Ref} and {RefNull}
constructors with fixed nullability.

Bug: v8:7748
Change-Id: I664ff184ca936cc752e152c3c67546d79aa24390
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3732936Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81494}

MarkingWorklists and MinorMarkCompactCollector each had their own
definition of MarkingWorklist. Both definition are identical.
Drop MinorMarkCompactCollector's definition.

Bug: v8:12612
Change-Id: I890f263e4de702aa34f00626a3aaa3ffb29c1ff2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3740723
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81493}

Upon Scavenge, nodes may generally be reclaimed or updated. This logic
did not consider the fact that objects may be Smis and thus should be
ignored.

Bug: v8:1341111
Change-Id: I62f68e673377a895d3487ec9d372001342e77e8a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3740722Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81492}

This makes the internal V8 name consistent with the text-format name.

Bug: v8:7748
Change-Id: I44f7ac1eb5e634b4f829e596bf1f14caeb748d54
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3726291Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81491}

TSAN may cause the sandbox to fail to obtain enough virtual address
space during initialization, thereby causing it to fall back to a
smaller backing reservation. This combined with the very inefficient
ArrayBufferAllocator that is used in standalone v8 builds when the
sandbox is enabled may cause some tests to run out-of-memory earlier
than they otherwise would. For now we just disable these tests on TSAN
builds, but should be able to re-enable them once we have a better
ArrayBufferAllocator on standalone v8 builds.

Bug: v8:13009, chromium:1340224
Change-Id: I93e46e05d47a8850788504c10a6498067400128a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3738740Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Samuel Groß <saelo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81490}

Ctrl+X, Ctrl+V. No change in behavior.
This is a preparational step for templatizing the module decoder
for disassembler purposes.

Bug: v8:12917
Change-Id: I08a5d2e666cd16a207e9862b2691446c0473ddb0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3738221
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81489}

This is no longer needed as all backing store allocations must now be
located inside the sandbox after sandboxed pointers were enabled by
default when the sandbox is enabled.

Bug: chromium:1218005
Change-Id: Id2d5feba878e1a6a5775ae3fef4012d0e7fe667a
Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng,v8_linux_arm64_sim_heap_sandbox_dbg_ng
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3738742Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Samuel Groß <saelo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81488}

Port commit b9c4a849

Change-Id: Ibf19d2988cacc67b6293a5ff348b878b27ed79e5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3740491
Auto-Submit: Liu Yu <liuyu@loongson.cn>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/main@{#81487}

Reland since ubsan failures were fixed.

Original change's description:
> Revert "cppgc: Enable pointer compression by default on Desktop"
>
> This reverts commit 4cf08c1a.
>
> Reason for revert: broke ubsan.
>
> Original change's description:
> > cppgc: Enable pointer compression by default on Desktop
> >
> > The CL enables pointer compression in Oilpan.
> >
> > For sherrifs: the CL may cause some slight perf regressions (likely
> > blink_perf.*), due to slightly higher cost of compression and
> > decomrpession.
> >
> > Speedometer2 is not expected to regress, as was checked locally. Such a
> > slight performance degradation is compensated by memory savings that are
> > expected to be around 10-20% of Oilpan committed size (~2.5-5% of Renderer
> > PMF).
> >
> > Bug: chromium:1325007
> > Change-Id: I2e31fc56250dbe6354a7614fa1f9e926260d842b
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3695565
> > Commit-Queue: Anton Bikineev <bikineev@chromium.org>
> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> > Cr-Commit-Position: refs/heads/main@{#81442}
>
> Bug: chromium:1325007
> Change-Id: Iabc31ed683841ba0189dee9028da330dc03d7e09
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3735168
> Auto-Submit: Anton Bikineev <bikineev@chromium.org>
> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> Commit-Queue: Anton Bikineev <bikineev@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#81443}

Bug: chromium:1325007
Change-Id: Ifc8ea0e73e99d9be622e27d3d4c79d0e35fd459c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3735128
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#81486}

Change-Id: I2e217b5b403db9fb8504a9c81040d8fe893b37d3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3740486Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Commit-Queue: Yahan Lu <yahan@iscas.ac.cn>
Commit-Queue: ji qiu <qiuji@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#81485}

Change-Id: Ia92047d3e23b4180172c9d53c0b0bca12a856a04
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3734812Reviewed-by: Hannes Payer <hpayer@chromium.org>
Auto-Submit: Lutz Vahl <vahl@chromium.org>
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81484}

In this part: push, pop

Bug: v8:11111
Change-Id: I62ddc418acaec778270d69c9839e2236d3c8f1e4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3738259
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81483}

Rolling v8/third_party/google_benchmark/src: https://chromium.googlesource.com/external/github.com/google/benchmark/+log/b7afda2..7280499

Remove redundant formatting tags (#1420) (Tom Cobley)
https://chromium.googlesource.com/external/github.com/google/benchmark/+/7280499

R=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com,mlippautz@chromium.org

Change-Id: Ib19d28c3b9b95da06296802f44af8600fb25933b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3738494Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81482}

This was already removed as part of the lazy api accessor work, but
was never cleaned up throughout v8.

Change-Id: I00621d0e0f33c58efaed0f6b55cd22f1f8803825
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3735131Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81481}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/26f8da3..13924a1

R=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com

Change-Id: I9693339bd2065370daec9bd36ff960ee47ad36a1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3738491
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#81480}

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/322e254..bd235b0

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/a83ac93..9dec1b4

Rolling v8/third_party/fuchsia-sdk/sdk: version:8.20220629.1.1..version:8.20220630.1.1

Rolling v8/tools/luci-go: git_revision:5d9b6ecf87cdfb928e1112d2838d26bc7ede2b48..git_revision:be5d9aacf8987c0826223264f0427cd0b530b6a4

Rolling v8/tools/luci-go: git_revision:5d9b6ecf87cdfb928e1112d2838d26bc7ede2b48..git_revision:be5d9aacf8987c0826223264f0427cd0b530b6a4

R=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com

Change-Id: Iaeef3765f756fcea36fb10ba87a15a5a19da1025
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3738490
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#81479}

Bug: chromium:1339276
Change-Id: Ice60167660fa52e84c78bb0bd9d2a2c85e0c377a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3733027Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Ilya Rezvov <irezvov@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81478}

Bug: v8:12764
Change-Id: I5f915d1c4dad22f1ce12423f6149a85ad32d6725
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3733043
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81477}

Bug: chromium:1338980
Change-Id: Iae76931fb375ab792659c937d673dfe65e364360
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3739339
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81476}

The previous combination of a conditional and an unconditional move
produced an incorrect value when dst == rhs and lhs contained the
expected result.

Fixed: chromium:1338980
Change-Id: If3f722999ed9c0ffd687736280d048d232d75736
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3738219
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81475}

This is a performance improvement; no change in functional
behavior is intended.
AdaptiveMap is an abstraction over a std::map or a std::vector:
after being initialized iteratively with a set of entries, it
can switch to dense vector-based storage if that would be more
efficient.
The motivation is that we expect most name sections, if they
are present at all, to give fairly complete information, so the
dense mode will likely be the typical case. However, it's easy
enough to support sparse mode as well, and parsing the name
section into a std::map at first is particularly convenient for
cases where we can't guess the expected number of entries, such
as for function locals.

Change-Id: Ia17f27576a3061eb05c912f7081411d6f38137e6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3726150Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81474}

If the WordAnd aims to take low 8/16/32 bits of an oprand for later cmp8/cmp16/cmp32, it can be removed.

Change-Id: I0040e596ab65a6a9255ddbdb4fca573fd765879e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3731488
Commit-Queue: Jianxiao Lu <jianxiao.lu@intel.com>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81473}

This is a partial reland of https://crrev.com/c/3597106

With this change, an existing Script from the compilation cache can be
reused after its top-level SharedFunctionInfo was discarded, but only if
the new script is parsed on the main thread (not deserialized from code
cache data, and not parsed on a background thread).

Bug: v8:12808
Change-Id: I1edaee2095306a89e2c3b91f2fd01ac053f3c770
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3689348Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#81472}

Bug: v8:12612
Change-Id: Ifa85407c506bb3192dfe7446a01cd71a9e803462
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3736448
Auto-Submit: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81471}

This reverts commit a618a4a3.

Reason for revert: Original CL got reverted, we don't need the suppression anymore.

Original change's description:
> [foozzie] Silence a frequently occuring correctness bug
>
> This CL adds back a patch of Math.pow for correctness fuzzing, which
> drops some precision and hides a difference on the fast path.
>
> The same suppression was previously used on https://crbug.com/693426.
>
> No-Try: true
> Bug: chromium:1339320
> Change-Id: Id52f25f8a2b6b5aeca956587b16a10c61aa68e36
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3726295
> Reviewed-by: Maya Lekova <mslekova@chromium.org>
> Commit-Queue: Maya Lekova <mslekova@chromium.org>
> Auto-Submit: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#81408}

Bug: chromium:1339320
Change-Id: Id4cf04f9480b3052978ee7ca3dd83d7ee16845c8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3736446
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#81470}

This reverts commit 49d15209.

Reason for revert: Trigger Skia branch roller

Original change's description:
> White space to trigger Skia branch rollers
>
> Bug: skia:10306
> Change-Id: Ibcddc8c724130e315471413c2835687fe0571475
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3718660
> Auto-Submit: Liviu Rau <liviurau@chromium.org>
> Reviewed-by: Shu-yu Guo <syg@chromium.org>
> Commit-Queue: Shu-yu Guo <syg@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#81317}

Bug: skia:10306
Change-Id: I5b6f232dca57c305369fd58e912e46d980769634
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3735133
Commit-Queue: Liviu Rau <liviurau@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#81469}

MinorMC maintained a separate marking state to support interleaved GCs.
Since MinorMC now assumes that interleaving is not possible, MinorMC can
use the same marking state as the full GC.

Bug: v8:12612
Change-Id: Ibeb7df2eb24e448f811b497c9d16b3b132f87ec2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3735163Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81468}

The set of registers used for Pop/PushCallerSaved is a superset of the
ABI caller-saved registers. In the past it may have been the case that
these extra registers had to be saved, but at this point
Pop/PushCallerSaved is only used for fast C calls from JS, so we can
rely on the C-compiled functions saving callee-saved registers
correctly, and only save ABI-required registers ourselves.

Change-Id: I2a172bdbb381a1485654e54e3561d695b6672ed0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3735130
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81467}

This file uses inline assembly, but inline assembly does not work
for cross-compilation. As this file only contains debug code, no-oping
this file for cross-compilation seems acceptable.

R=ishell@chromium.org

Bug: v8:12926
Change-Id: I01276cf019e8c31e4db6f7f61a3d91526f660578
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3735165
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81466}

This is a necessary assumption for concurrent marking in MinorMC and
will simplify the code as it allows MinorMC to reuse the same marking
bitmap as full GCs.

Bug: v8:12612
Change-Id: I5e9be45c7d84320721ce7f7578dee1eb972d6f6a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3732933Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81465}

Change-Id: I6e84533581917afe90796265c563868fa1ab4448
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3734810
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81464}

This reverts commit 83470dee.

Reason for revert: Introduced inconsistencies with the runtime (https://crbug.com/chromium/1339320) and increased inaccuracy
(https://crbug.com/v8/12996). Even though this is currently not specified, the speed improvement doesn't seem to be worth the
lower precision.

Bug: chromium:1339320, v8:12996

Original change's description:
> [turbofan] Add fast path for Math.pow with small positive integer exponent
>
> For small positive integer exponents, calculate the result with an inlined loop.
>
> This change may improve the average runtime of JetStream2/raytrace for ~8%.
>
> Change-Id: I0e3939dc9c21b0c392c04d61fd197bf618004ab4
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3708024
> Commit-Queue: Fanchen Kong <fanchen.kong@intel.com>
> Reviewed-by: Maya Lekova <mslekova@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#81341}

Change-Id: Idfaa229b3d37a1831f016453c6091d2498cb6bcd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3735129
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: Maya Lekova <mslekova@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#81463}

On old iPhones, jscvt is not availale. This CL diables jscvt on iOS in
general.

R=tebbi@chromium.org

Bug: v8:13004
Change-Id: Ib2651d7fa43892c06dc8c36e497a8c76344b5051
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3726297Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81462}

We need this to expand the max input count to be big enough for our
biggest calls (and to add more bits to the op properties).

Bug: v8:7700
Change-Id: I6d63cf39b3079c3c85a32f208ce925ae795ef5a7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3734811
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81461}

Stack scan during marking for shared heap broke in
  https://crrev.com/c/3703837

This CL re-adds the client Isolate handling which is necessary as
those client Isolates may refer to the shared Isolate from stack.

Bug: v8:13019
Change-Id: I1ee27fb8bab173087a98a0b79f4126612427b016
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3736444Reviewed-by: Nikolaos Papaspyrou <nikolaos@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81460}

Waiting for a background thread to finish a task isn't going to
work when there are no background threads. Luckily, we can sidestep
the problem by compiling with Turbofan immediately, instead of
triggering dynamic tier-up through repeated execution. As a nice bonus,
this makes the test faster in non-predictable modes too.

Fixed: v8:13020
Change-Id: I2d47bc07bbde48a210c6ea59551ae16e63bdae05
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3736443Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81459}

In DebugPropertyIterator::iterator() we were assuming that the call to
JSReceiver::GetOwnPropertyDescriptor() would always yield either an
exception or a valid property descriptor. But that's not guaranteed to
be the case (anymore), because JSReceiver::GetOwnPropertyDescriptor()
nowadays can chicken out with `false` for many different reasons.

Coincidentally the callsites to DebugPropertyIterator::iterator() are
already equipped to handle the case where of an empty property
descriptor, which is basically what we get out here. So this CL adjusts
the DebugPropertyIterator to return an empty descriptor in this case.

Fixed: chromium:1291240
Change-Id: I22a9d0cde2b2c6d3966a85478ed0b87fb4c5d232
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3736445Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81458}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/5b369fe..26f8da3

R=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com

Change-Id: Ia7497d20609919082eef79230051053d61c8460d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3737363
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#81457}