This reverts commit dc9b48e4.

Reason for revert: https://crbug.com/1312188

Original change's description:
> Address comments from `[osr] Basic support for concurrent OSR`
>
> - Unhandlify OSROptimizedCodeCache::GetOptimizedCode.
> - Unstatic-fy FeedbackVector::SetOptimizedCode.
> - Remove frame-walking logic during the OSR tierup decision.
>
> Bug: v8:12161
> Change-Id: I4fa8c972cb50d369b17898ba57e1909c86e933df
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3560478
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Jakob Linke <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#79686}

Bug: v8:12161, chromium:1312188
Change-Id: Ia64c4204f9f65f19aa858c61f32658cee310033e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3564990
Auto-Submit: Adam Klein <adamk@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#79701}

This reverts commit d368dcf4.

Reason for revert: https://crbug.com/1312188

Original change's description:
> Refactor OSROptimizedCodeCache
>
> Tweak a few names, remove a few GetIsolate calls, other minor
> usability refactors.
>
> It may be worth taking a closer look at the impl in the future,
> currently the design choices don't seem ideal (see the added TODO
> on top of the class).
>
> Bug: v8:12161
> Change-Id: Ib34e372aa58a30c68c9c5cdd0d1da0ec3e86717c
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3560447
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Jakob Linke <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#79687}

Bug: v8:12161, chromium:1312188
Change-Id: Ieb3a91682845a23536fdfdf3208af74b3c6585f8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3564989
Auto-Submit: Adam Klein <adamk@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#79700}

Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.calendar.prototype.inleapyear

Note- this is only the non-intl version. intl version in
https://tc39.es/proposal-temporal/#sup-temporal.calendar.prototype.inleapyear
will be implemented in later cl.


Bug: v8:11544
Change-Id: I0f30d45ed6d742acaeaa2f7ddf5b393ef7fa5437
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3531561Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79699}

Also add AO: ToISODayOfWeek
Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.calendar.prototype.dayofweek
https://tc39.es/proposal-temporal/#sec-temporal-toisodayofweek

Note- this is only the non-intl version. intl version in
https://tc39.es/proposal-temporal/#sup-temporal.calendar.prototype.dayofweek
will be implemented in later cl.


Bug: v8:11544
Change-Id: I0b3448209741e4aa56cd8170a331d837853bff17
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3531564Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79698}

These tests are too slow to be generally run.

Bug: v8:12741
Change-Id: I142a81a90558942a61b8582756b9227e6d8d634e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3558558
Auto-Submit: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79697}

Port dbff2a67

R=dmercadier@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N

Change-Id: I6b34e6cd502012474c619bbcb1e473ee4f7472db
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3564278Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79696}

In JSCallReducer::ReduceArrayPrototypeShift, when disable
FLAG_turbo_loop_variable, typer cannot infer loop phi variable
is in [1, kMaxCopyElements-1], and will break in representing
kRepFloat64 (Range(1, inf)) to kRepWord64 when converting
input for kLoadElement. So we need to add type guard for loop
variable. And we need to use loop phi variable when using
NumberLessThan to check terminate and updating phi loop variable,
otherwise which will break inducing variables in LoopVariableOptimizer.

Bug: v8:12632, chromium:1308241, chromium:1308029, chromium:1308087
Change-Id: I9f96e696f1103f39e633890b17b87bfb28b1dbc4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3546577Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79695}

As a follow-up of
https://chromium-review.googlesource.com/c/v8/v8/+/3481475,
this renames a few more operations related to property stores to keep
them consistent and adds comments to explain about what they do.

Summary of the renamed identifiers:

- SetPropertyInLiteral -> CreateDataProperty: this implements
  [[CreateDataProperty]] in the spec which does [[DefineOwnProperty]]
  instead of [[Set]], so rename for clarity.
- IsStoreIC(), IsStoreICKind() -> IsSetNamedIC(), IsSetNamedICKind():
  these only check whether the feedback kind is kSetNamedSloppy or
  kSetNamedStrict, so the scope can be narrowed.
- StoreMode::kOrdinary -> StoreMode::kSet: this implements [[Set]]
  in the spec and is used by both KeyedStoreIC and
  StoreIC to set the properties when there is no feedback.
- StoreMode::kInLiteral -> StoreMode::kDefineKeyedOwnInLiteral:
  this implements [[CreateDataProperty]] while expecting the receiver
  to be a JSObject created by us (the `InLiteral` part). Prepend
  `DefineKeyedOwn` to it so that it's more aligned with other
  StoreModes - it should be possible to just merge this into the
  more generic StoreMode::kDefineKeyedOwn later.
- KeyedStoreGenericAssembler::SetProperty ->
  KeyedStoreGenericAssembler::StoreProperty: these helpers are used by
  both define and set operations, distinguished with the StoreMode,
  so rename it to the more generic StoreProperty.

Bug: v8:12548
Change-Id: Iccef673c1dc707bbdbf010f02f7db1e9ec32b3e4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3557690Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Joyee Cheung <joyee@igalia.com>
Cr-Commit-Position: refs/heads/main@{#79694}

Recent Clang versions have enhanced -Wunused-but-set-variable which now
warns about this.

Bug: chromium:1309955
Change-Id: If5c1ce77bdcdb1e04eed4ae9e10ee1d7f2e8658d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3563139Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Hans Wennborg <hans@chromium.org>
Auto-Submit: Hans Wennborg <hans@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79693}

This is a reland of commit e76ad5c6

Changes compared to original:
- Move invocation of LAZY_INSTANCE_INITIALIZER to a static global
  variable, as some builds were failing with a function-level static.
- Drive-by: Improve documentation a bit.

Original change's description:
> [wasm-gc] Implement isorecursive canonicalization
>
> This implements isorecursive canonicalization for static types.
>
> Not implemented in this CL:
> - Runtime type canonicalization.
> - Cross-module signature canonicalization for purposes of call_indirect.
>
> Bug: v8:7748
> Change-Id: I6214f947444eea8d7b15a29b35c94c3d07ddb525
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3541925
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#79665}

Bug: v8:7748
Change-Id: I493fba1906491762f7d8bae50108e3e4a743391d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3560480Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79692}

Bug: chromium:1306474
Change-Id: Id01949dc413ca5af5132827001fbe380f8477368
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3557250
Auto-Submit: Almothana Athamneh <almuthanna@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79691}

Bug: v8:7700
Change-Id: Ib2ea6be1e9a69c724e526287e05de0e65029b672
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3560441
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79690}

Deprecate signature checks in
* Template::SetNativeDataProperty
* ObjectTemplate::SetAccessor
These are not used in Chrome and require some complicated check in the IC code, which we want to remove.

Change-Id: I413fafc8658e922fd590e7fe200600a624f019a6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3557253Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Stephen Röttger <sroettger@google.com>
Cr-Commit-Position: refs/heads/main@{#79689}

Nodes can now hold a LazyDeoptSafepoint which stores the frame state in
case they trigger a lazy deopt. OpProperties have a new CanLazyDeopt
bit, and codegen emits a safepoint table entry + lazy deopt for all
nodes with this bit. Also, we now check the deoptimized code bit on
entry into the maglev compiled function.

An example use of these lazy deopts is added as a PropertyCell fast path
for LdaGlobal, which adds a code dependency on the property cell.

Bug: v8:7700
Change-Id: I663db38dfa7325d38fc6d5f079d263a958074e36
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3557251Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79688}

Tweak a few names, remove a few GetIsolate calls, other minor
usability refactors.

It may be worth taking a closer look at the impl in the future,
currently the design choices don't seem ideal (see the added TODO
on top of the class).

Bug: v8:12161
Change-Id: Ib34e372aa58a30c68c9c5cdd0d1da0ec3e86717c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3560447Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79687}

- Unhandlify OSROptimizedCodeCache::GetOptimizedCode.
- Unstatic-fy FeedbackVector::SetOptimizedCode.
- Remove frame-walking logic during the OSR tierup decision.

Bug: v8:12161
Change-Id: I4fa8c972cb50d369b17898ba57e1909c86e933df
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3560478Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79686}

This CL adds basic support behind --concurrent-osr,
disabled by default.

When enabled:
1) the first OSR request starts a concurrent OSR compile job.
2) on completion, the code object is inserted into the OSR cache.
3) the next OSR request picks up the cached code (assuming the request
   came from the same JumpLoop bytecode).

We add a new osr optimization marker on the feedback vector to
track whether an OSR compile is currently in progress.

One fundamental issue remains: step 3) above is not guaranteed to
hit the same JumpLoop, and a mismatch means the OSR'd code cannot
be installed. This will be addressed in a followup by targeting
specific bytecode offsets for the install request.

This change is based on fanchen.kong@intel.com's earlier
change crrev.com/c/3369361, thank you!

Bug: v8:12161
Change-Id: Ib162906dd4b6ba056f62870aea2990f1369df235
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3548820Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79685}

Change-Id: I7f0d040b6e27ef5d24818c5c79aad9aa4b56ed2b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3560050Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Darius Mercadier <dmercadier@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79684}

Rolling v8/third_party/icu: https://chromium.googlesource.com/chromium/deps/icu/+log/a9359a8..493fb32

Add eu, gl to CrOS ICU (mlcui)
https://chromium.googlesource.com/chromium/deps/icu/+/493fb32

Cleanup more -Wunused-but-set-variable warnings (Gulfem Savrun Yeniceri)
https://chromium.googlesource.com/chromium/deps/icu/+/a84f25c

Cleanup -Wunused-but-set-variable in warnings (Gulfem Savrun Yeniceri)
https://chromium.googlesource.com/chromium/deps/icu/+/5aab8af

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

Change-Id: I65361315616dd9df84eb90cb747f73b417852c9f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3562383
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@{#79683}

Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.calendar.prototype.monthsinyear

Note- this is only the non-intl version. intl version in
https://tc39.es/proposal-temporal/#sup-temporal.calendar.prototype.monthsinyear
will be implemented in later cl.


Bug: v8:11544
Change-Id: Ibf7a9f1e64ce638f745df2649ee3a69dc9e08139
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3531559Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79682}

Also add AO: ToISODayOfYear
Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.calendar.prototype.dayofyear
https://tc39.es/proposal-temporal/#sec-temporal-toisodayofyear

Note- this is only the non-intl version. intl version in
https://tc39.es/proposal-temporal/#sup-temporal.calendar.prototype.dayofyear
will be implemented in later cl.



Bug: v8:11544
Change-Id: I5e5f9ea93cc0577df8d9b228efe5c3a97d118b88
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3531566Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79681}

Bug: v8:12749
Change-Id: I33d0313625c38f9634ffba5ed358c1782811ddde
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3561184
Commit-Queue: Adam Klein <adamk@chromium.org>
Auto-Submit: Adam Klein <adamk@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#79680}

Bug: v8:7700
Change-Id: I43ef07414326ee656b36e17aa739ae0015c88d57
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3560640Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79679}

Bug: v8:12748
Change-Id: I7c4db798728a6ed243ac7aace3af45bf32367dc5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3560479Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Liviu Rau <liviurau@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79678}

R=clemensb@chromium.org

Bug: chromium:1307603
Change-Id: I1924aeb43dcca3eaee5b54b1e105c78b28f66c07
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3560438Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79677}

Bug: chromium:1308360,chromium:1309467,v8:9237
Change-Id: I2923e3ee60b4b30c4e2b57b9c8569a030fc7bfbd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3550588Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79676}

When starting a global safepoint, it could happen that one isolate is
waiting/blocking in the event loop, which prevents this isolate from
reaching a safepoint. As a consequence we therefore deadlock when
performing the safepoint. We can solve this by simply posting a task
for each isolate that when run performs a safepoint check.

This CL also renames IncludeMainThreadUnlessInitiator to
ShouldIncludeMainThread.

Bug: v8:11708, v8:12645
Change-Id: Ide956b3c39b350c2bb0279a7dd94ff79cb9d771b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3555771Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79675}

This allows us to store per-eager-deopt site information.

Bug: v8:7700
Change-Id: I86c29aec28220fb96fcf09984e6665f650f22708
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3550275Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79674}

This introduces a `V8InspectorClient::dispatchError()` callback that
embedders can use to dispatch errors from scripts injected by DevTools
(via debug evaluate). The idea here being that while these errors are
technically caught by the inspector logic, the DevTools UX presents them
just like other uncaught errors, with the exception that they don't
trigger error handlers installed by the page. The latter can be quite
confusing to developers, and surprising when for example testing these
error handlers from DevTools. So this adds the foundations on the V8
side to enable triggering error handlers for these technically caught,
but morally uncaught, exceptions.

On the Chromium side https://crrev.com/c/3560458 will implement and
use the hook. And that CL also adds a web tests to check the behavior.

Bug: chromium:1295750
Change-Id: I945c8a9e9b4ec5705fc7f1891dcda185b04c8310
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3557234
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79673}

Take 1:
https://chromium-review.googlesource.com/c/v8/v8/+/3557331

Undefined node needs to be constructed before Call in
BuildCallFromRegisterList as well.

Bug: v8:7700
Change-Id: I58bc647a3b34437a0a143e1f252c2fa2a01df3d0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3557235
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79672}

Bug: v8:7700
Change-Id: I11e2a5eaf607b7501b19b9cb04de086cd4ee0a4c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3553113Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79671}

Port commit 0a110021

Change-Id: I065d5e79c3432ef9f306e70635a86de89eb531dc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3559771Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Auto-Submit: Yu Liu <liuyu@loongson.cn>
Commit-Queue: Yu Liu <liuyu@loongson.cn>
Cr-Commit-Position: refs/heads/main@{#79670}

.. with readability and simplicity in mind.

- Rename OptimizationMarker to the (shorter) TieringState. 'Tiering'
  also matches 'TieringManager' terminology.
- Rename the values:
  kNone -> kNone
  kInOptimizationQueue -> kInProgress
  kCompileFoo_NotConcurrent -> kRequestFoo_Synchronous
  kCompileFoo_Concurrent -> kRequestFoo_Concurrent
- Likewise rename ConcurrencyMode::kNotConcurrent to kSynchronous.
- Add predicates to test enum values.
- Consistent lower case names for accessors on JSFunction and
  FeedbackVector.
- Instead of having to call HasOptimizationMarker() before using any
  other accessor, simply have optimization_marker() return kNone if
  no feedback vector exists.
- Drive-by: Enable the Unreachable() in MaybeOptimizeCode()
  unconditionally - this should never happen, there's no reason not
  to protect against this in release builds as well.

Bug: v8:12161
Change-Id: I67c03e2b7bd0a6b86d0c64f504ad8cb47e9e26ae
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3555774Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Jakob Linke <jgruber@chromium.org>
Auto-Submit: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79669}

- For y = x & 0xFF, we could use movzxbq y, x.
- For y = x & 0xFFFF, we could use movzxwq y, x.
- For y = x & 0xFFFFFFFF, we could use movl y, x.
- For y = x & immediate and immediate fits into uint32,
we could use andl x, immediate.


Bug: v8:12337
Change-Id: I31f04fa9058c6acabb210f0fce61ac713ed1a382
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3518913Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79668}

This reverts commit e76ad5c6.

Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20-%20shared/19438/overview

Original change's description:
> [wasm-gc] Implement isorecursive canonicalization
>
> This implements isorecursive canonicalization for static types.
>
> Not implemented in this CL:
> - Runtime type canonicalization.
> - Cross-module signature canonicalization for purposes of call_indirect.
>
> Bug: v8:7748
> Change-Id: I6214f947444eea8d7b15a29b35c94c3d07ddb525
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3541925
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#79665}

Bug: v8:7748
Change-Id: I9e26696a7113b1bacafa800c8d6ef24df38c41fd
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3557233
Auto-Submit: Nico Hartmann <nicohartmann@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Owners-Override: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79667}

Port 0a110021

Change-Id: I922cde72d100b8d1ef006a7752400c568b675532
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3559629
Auto-Submit: Yahan Lu <yahan@iscas.ac.cn>
Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Commit-Queue: ji qiu <qiuji@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#79666}

This implements isorecursive canonicalization for static types.

Not implemented in this CL:
- Runtime type canonicalization.
- Cross-module signature canonicalization for purposes of call_indirect.

Bug: v8:7748
Change-Id: I6214f947444eea8d7b15a29b35c94c3d07ddb525
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3541925Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79665}

Change-Id: Ib68766bf88624bfdad272680ce9e1180d241adf0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3556927Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Commit-Queue: Yahan Lu <yahan@iscas.ac.cn>
Auto-Submit: Yahan Lu <yahan@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#79664}

There are two kinds of method to get native context of JSFunction
object, directly calling to native_context() and calling
context().native_context(). Replace all context().native_context()
with native_context().

Change-Id: Ia7a7e64648446002717d38fafecd2420f622325e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3541468Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Tao Pan <tao.pan@intel.com>
Cr-Commit-Position: refs/heads/main@{#79663}

Bug: v8:11111, v8:12731, v8:12742
Change-Id: I2679c0e64faca25a2c16e15fd3a5c727eb941c92
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3551894Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79662}