Unused as of this CL; users will follow.

Bug: v8:12917
Change-Id: I82658ea8a401834a5b3661068766bbdfec54d5a4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3726214Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81533}

Change-Id: I3ae32354c592e4a605f1d0c34f4dd3d9cad16795
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3745404
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81532}

... utils/identity-map-unittest.

Bug: v8:12781
Change-Id: I875de2b1e589ec72d724a6d0745a5d615344b510
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3724792Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: 王澳 <wangao.james@bytedance.com>
Cr-Commit-Position: refs/heads/main@{#81531}

Bug: chromium:1309467,chromium:1308360,v8:9237
Change-Id: I77b004e263a9bed98a0dfe5936bdad055bde36a6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3745365Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81530}

This is a reland of commit 84e078c6. It fixes an undefined behaviour and guards against NaNs in d8-test.cc.

Original change's description:
> [fastcall] Support EnforceRange annotation
>
> This CL implements checks in case EnforceRange is requested for a
> given parameter by using TryTruncate* operators. It implements 2 such
> truncations on x64 and arm64 - TryTruncateFloat64ToInt32 and
> TryTruncateFloat64ToUint32.
>
> Bug: chromium:1052746
> Change-Id: I32f34d9dc1265af568cc576663620a8f7f8245f6
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3721618
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Commit-Queue: Maya Lekova <mslekova@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#81512}

Bug: chromium:1052746, chromium:1341851, chromium:1341891
Change-Id: I21e0e452c92cc93f8b06985a335f409855be0546
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3743518Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81529}

Change-Id: Id10cfdb8f3a380eb1cd39be569e152b3ebe41b44
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3735166Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#81528}

Fixed: chromium:1341180
Change-Id: Ib475310b18c31e5e3e0fc5e52dab736ebb6ac55a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3738745Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81527}

This reverts commit 2d74bfa4.

Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Mac%20-%20arm64%20-%20debug%20builder/7403/overview

Original change's description:
> Remove some unused includes
>
> Mostly src/api, src/asmjs. src/ast, src/base, src/wasm.
>
> Bug: v8:13006
> Change-Id: If4e85afe003fda9f8a681077827c3502e939fe57
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3742702
> Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
> Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#81523}

Bug: v8:13006
Change-Id: I7579dc3805ed4cbcd56488c31450c7941b430b1a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3746076
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Owners-Override: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81526}

Smi handler in LoadIC is decoded to IntPtrT and result in
sign-extending Smi's value when pointer compression is enabled. This
CL avoid this sign-extension by decoding the Smi to Int32T.

Change-Id: I3ddd6dcec8654d6c13d472a077a55698359d126a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3740481
Commit-Queue: Hao A Xu <hao.a.xu@intel.com>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81525}

Extract AllocationCounter (which manages the allocation observers) out
of Space and pass it on initialization.
AllocationCounter will instead be a field of the subclasses (e.g.
PagedSpace, NewSpace).
This will allow to reuse the same AllocationCounter for the NewSpace and
PagedSpaceBase parts of PagedNewSpace (crrev.com/c/3641178).

Bug: v8:12612
Change-Id: Ie6ed10d1b138a5724cf9b469ab9c943518850ad4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3745403
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81524}

Mostly src/api, src/asmjs. src/ast, src/base, src/wasm.

Bug: v8:13006
Change-Id: If4e85afe003fda9f8a681077827c3502e939fe57
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3742702Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81523}

Prints information about sections in a given module and their sizes.

Change-Id: I3bf02f0c8be53756364db4d2dada60bc8a510815
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3743447Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81522}

Bug: v8:12946
Change-Id: If62b67a47f63832e6edca749ce1a45cf3a85316d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3743384
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81521}

Bug: v8:13033
Change-Id: Ic2c13359a1e22846750d67342b2a682f6351b7da
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3743484Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Almothana Athamneh <almuthanna@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81520}

This CL fixes a performance regression by conditionally compiling an
expensive instance check only in debug mode.

Bug: chromium:1329463
Change-Id: I2cceb7c06fa6db967923047a4dee63a93a0b72a2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3743385
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Auto-Submit: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81519}

Additional change: Allow regular expressions in assertTraps.

Bug: v8:7748
Change-Id: I3bf99faec3d4f25fcf3caa4ed310f02f03196d4d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3743483Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81518}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/9782ba0..9ea9d49

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

Change-Id: I2b02543e83818d2155d9d9ccf2e234e0511f917c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3743513
Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
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This reverts commit 111d20bb.

Reason for revert:
- crashes
- flaky test failures
- ubsan errors
- Speedometer regression

Original change's description:
> Reland "cppgc: Enable pointer compression by default on Desktop"
>
> 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}

Bug: chromium:1325007
Change-Id: I35d9085b9c39fd212002f098a3a015d0db7504a0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3743468
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81516}

Initial feature: list functions in a module, as follows:

$ gm x64.release wami
$ out/x64.release/wami --list-functions my_module.wasm

More to come.

Change-Id: I9580437d51153e1b5ccc291fdb6a6a67315be07d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3742700
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81515}

Rolling v8/buildtools/linux64: git_revision:ecaaf4b9e58a312a1610a37999eeccf58f73e264..git_revision:03ce92df5f9875bd9929b564be4b612713569aa9

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

Change-Id: I4ddef50901edce840d56cc132835f52693725385
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3743512
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@{#81514}

This reverts commit 84e078c6.

Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20UBSan/22000/overview

Original change's description:
> [fastcall] Support EnforceRange annotation
>
> This CL implements checks in case EnforceRange is requested for a
> given parameter by using TryTruncate* operators. It implements 2 such
> truncations on x64 and arm64 - TryTruncateFloat64ToInt32 and
> TryTruncateFloat64ToUint32.
>
> Bug: chromium:1052746
> Change-Id: I32f34d9dc1265af568cc576663620a8f7f8245f6
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3721618
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Commit-Queue: Maya Lekova <mslekova@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#81512}

Bug: chromium:1052746
Change-Id: I2218681c7cb5d05dea6d8ac5347b19bc0070c1a6
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3743514
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Owners-Override: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81513}

This CL implements checks in case EnforceRange is requested for a
given parameter by using TryTruncate* operators. It implements 2 such
truncations on x64 and arm64 - TryTruncateFloat64ToInt32 and
TryTruncateFloat64ToUint32.

Bug: chromium:1052746
Change-Id: I32f34d9dc1265af568cc576663620a8f7f8245f6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3721618Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81512}

Instruction selector is also modified to include a `relaxed`
boolean value to be used for future optimizations.

Change-Id: I1e314066655613846653cc0c3668167c4ef32648
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3735106Reviewed-by: Junliang Yan <junyan@redhat.com>
Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#81511}

Port commit a0a78665

Bug: v8:7748
Change-Id: I23e559917a76a01a7afb78403648372149a13c54
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3743122Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Auto-Submit: Liu Yu <liuyu@loongson.cn>
Cr-Commit-Position: refs/heads/main@{#81510}

This adds a new --experimental-value-unavailable flag, which is disabled
for now. When enabled the debugger reports values that are optimized out
by TurboFan and values of certain variables in Temporal Dead Zones (TDZ)
as unavailable. Internally we use a special `value_unavailable` accessor
info to represent these values, and on the debugger boundary we report
these properties with `value`, `get`, or `set`.

Doc: https://goo.gle/devtools-value-unavailable
Bug: chromium:1328681
Demo: devtools-dbg-stories.netlify.app/crbug-1328681-value-unavailable
Change-Id: Idb09a4a148335a950deae60f7c07caecc48826ba
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3627510
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81509}

Bug: v8:11544
No-Tree-Checks: true
Change-Id: I12b093da9f9f4f63bc67b1efaeefb735b8a6c5e4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3741001Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Auto-Submit: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81508}

Also add AOs: FormatISOTimeZoneOffsetString, TemporalZonedDateTimeToString, ToShowTimeZoneNameOption, ToShowOffsetOption,

Update FormatTimeZoneOffsetString to use ToZeroPaddedDecimalString

Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.zoneddatetime.prototype.tojson
https://tc39.es/proposal-temporal/#sec-temporal.zoneddatetime.prototype.tolocalestring
https://tc39.es/proposal-temporal/#sec-temporal.zoneddatetime.prototype.tostring
https://tc39.es/proposal-temporal/#sec-temporal-formatisotimezoneoffsetstring
https://tc39.es/proposal-temporal/#sec-temporal-temporalzoneddatetimetostring
https://tc39.es/proposal-temporal/#sec-temporal-toshowtimezonenameoption
https://tc39.es/proposal-temporal/#sec-temporal-toshowoffsetoption

The intl version of toLocaleString is not implemented in this CL yet


Bug: v8:11544
Change-Id: Id7e4f72b63864857b0b3fa8dc8dfcba0b5949faa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3688848Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81507}

Bug: v8:11544
Change-Id: Iaf3d673c9746badadae082121402e723d3704189
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3719087Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81506}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/13924a1..9782ba0

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

Change-Id: I1de68cb1af793810c753c80da76aad8b9712f12e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3741373
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
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Rolling v8/buildtools/clang_format/script: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/clang/tools/clang-format/+log/e435ad7..8b525d2

Rolling v8/buildtools/linux64: git_revision:29accf5ac2eadfc53e687081583b7bc1592a8839..git_revision:ecaaf4b9e58a312a1610a37999eeccf58f73e264

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/bd235b0..6f2de7b

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/9dec1b4..78c53d1

Rolling v8/third_party/fuchsia-sdk/sdk: version:8.20220630.1.1..version:8.20220701.2.1

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

Change-Id: Ie6e5e60de44904ba9582db966b285fb4c25ee2c7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3741372
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https://github.com/tc39/proposal-temporal/pull/2248

Bug: v8:11544
Change-Id: I02612030f626adf2b163dca96c7602efe6adef4a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3712044Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81503}

Also add AOs: GetTemporalUnit, NegateTemporalRoundingMode,
MaximumTemporalDurationRoundingIncrement, GetDifferenceSettings,
DifferenceInstant, DifferenceTemporalInstant

Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.instant.prototype.since
https://tc39.es/proposal-temporal/#sec-temporal.instant.prototype.until
https://tc39.es/proposal-temporal/#sec-temporal-gettemporalunit
https://tc39.es/proposal-temporal/#sec-temporal-negatetemporalroundingmode
https://tc39.es/proposal-temporal/#sec-temporal-maximumtemporaldurationroundingincrement
https://tc39.es/proposal-temporal/#sec-temporal-getdifferencesettings
https://tc39.es/proposal-temporal/#sec-temporal-differenceinstant
https://tc39.es/proposal-temporal/#sec-temporal-differencetemporalinstant

Bug: v8:11544
Change-Id: Iabcc452304366132b03bb82529159c7553c610b3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3722456
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81502}

Add AOs: MoveRelativeZonedDateTime,  DaysUntil, MoveRelativeDate,
RoundDuration,

Also fix bugs in CalendarDateAdd, TemporalDurationToString, IsValidDuration

Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.duration.prototype.tostring
https://tc39.es/proposal-temporal/#sec-temporal-moverelativezoneddatetime
https://tc39.es/proposal-temporal/#sec-temporal-daysuntil
https://tc39.es/proposal-temporal/#sec-temporal-moverelativedate
https://tc39.es/proposal-temporal/#sec-temporal-roundduration

Bug: v8:11544
Change-Id: I351cdb88a930f3f7b48f351549d390e5bd02d91e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3715381Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81501}

Bug: v8:12946
Change-Id: I2c17c3258123417d616e7fc8a1521e006b758e08
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3731149Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Ilya Rezvov <irezvov@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81500}

Make the normal CheckMaps non-calling, and add a new
CheckMapsWithMigration which still does the deferred call. Eventually
we'll want to also not mark this as calling, but keeping the two
separate is cleaner anyway.

Bug: v8:7700
Change-Id: Ideb2fcef147ab45d4a10bbdde9a85a55fbd56947
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3740725Reviewed-by: Igor Sheludko <ishell@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81499}

The optimization was initially designed to support only the case where
the receiver is the holder, so make this explicit:

Cached properties were implemented before super property access and
Reflect.get, or at least around the same time, not realising it
conflicted. Cached properties are optimizations for known accessors
globalThis.window and globalThis.document. They store the result of
calling those accessors. The result of calling those accessors depends
on the receiver passed to the call, so we shouldn't simply read the
cached property off of the _holder_ of the accessor, but only do so if
the holder is the same as the receiver.

Bug: chromium:1305302
Change-Id: Iea6f4437e09d5a293798041adcb310469589d00f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3738744Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81498}

Currently serialization of external pointers stored in EmbedderDataArray
is not supported but such a functionality was never needed before.

Bug: v8:13007, v8:12949
Change-Id: I56dc33592c1410ac9e234c60ef79db92a4e96a0f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3740724
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#81497}

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}