Bug: v8:11880
Change-Id: Iffebca251d18d5637884b2181acdfb3e6c5496a0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3257715Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77682}

Happy hunting.

Bug: chromium:1262676
Change-Id: I0f3a5519cb9ed3dc4787acd61cb437ee8c2bf2d1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3257716
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77681}

Bug: v8:11880
Change-Id: Ib0997ca8cedaf1065fc6803d5297c30621b49949
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3257714Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77680}

`UseScratchRegisterScope` should be used in a block scope, to avoid keeping the
scratch register in use for longer than it's needed. Spotted when experimenting
with the `v8_enable_heap_sandbox` and `v8_enable_external_code_space` flags.

Change-Id: I34330f3e4dbd114aa75efb0ebdcf557f0bd45f11
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256997Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Georgia Kouveli <georgia.kouveli@arm.com>
Cr-Commit-Position: refs/heads/main@{#77679}

In order to avoid some of the unnecessary Code <-> CodeDataContainer
conversions in builtins we need to be able to embed CodeDataContainer
references to builtins.

This CL makes it possible by introducing a table of builtins' CDCs.
Eventually, usages of the builtins table containing Code objects will
be replaced by usages of this table.

Bug: v8:11880
Change-Id: Iffffd1507d5c7b38af34c42071a4577a8d18e8eb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3257710Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77678}

The runtime function 'WasmIsValidRefValue' can be called from C-API and
JS wrappers and needs to be passed an instance. Therefore, we always
have to define an instance node, even when it is just undefined.
See also https://chromium-review.googlesource.com/c/v8/v8/+/3236719.

Bug: v8:11510, chromium:1266080
Change-Id: Ib9712fe3a3880db8656ee4882bec0ae7635cc60f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3257708Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77677}

This is a reland of 35a6eeec

Reland fixes:
  * Add a SharedFunctionInfo::CopyFrom to encapsulate updating the SFI
    from the placeholder. This now includes copying scope_info (which
    wasn't included in the original CL and caused some of the issues)
  * Make sure that LocalHandleScope is initialised only inside of
    UnparkedScope (fixed TSAN issues)
  * Clean-up: Don't add `script_` to ParseInfo, but instead pass it
    separately to Parser. Eventually we'd ideally get rid of ParseInfo
    entirely (splitting it into input and output) so let's not add more
    fields to it. Reverts changing CreateScript to InitializeScript.

Original change's description:
> [off-thread] Allow off-thread top-level IIFE finalization
>
> Allow off-thread finalization for parallel compile tasks (i.e. for top-
> level IIFEs).
>
> This allows us to merge the code paths in BackgroundCompileTask, and
> re-enable the compiler dispatcher tests under the off-thread
> finalization flag. Indeed, we can simplify further and get rid of that
> flag entirely (it has been on-by-default for several releases now).
>
> Change-Id: I54f361997d651667fa813ec09790a6aab4d26774
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3226780
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Commit-Queue: Leszek Swirski <leszeks@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#77615}

Change-Id: If1a5b14900aa6753561e34e972a293be0be9a07d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256692
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77676}

Change-Id: I5c8452a0fb5512a007f9b892c81711a30f65344c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3257707
Commit-Queue: Yang Guo <yangguo@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Yang Guo <yangguo@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77675}

.. as a custom data structure with questionable value.

Also: a few drive-by refactors.

Change-Id: I74957b70c4357795dc46ef5520d58b6a78be31b2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3240823
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77674}

Unfortunately, CharacterRanges may use 0x10ffff as a marker value
signifying 'highest possible code unit' irrespective of whether the
regexp instance has the unicode flag or not. This value makes it
through RegExpCharacterClass::ToNode unmodified (since no surrogate
desugaring takes place without /u). Correctly mask out the 0xffff
value for purposes of building our uint16_t range array.

Note: It'd be better to never introduce 0x10ffff in the first place,
but given the irregexp pipeline's lack of hackability I hesitate to
change this - we are sure to rely on it implicitly in other spots.

Drive-by: Refactors.

Fixed: chromium:1264508
Bug: v8:11069
Change-Id: Ib3c5780e91f682f1a6d15f26eb4cf03636d93c25
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256549
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77673}

It is easy to miss that a LocalHandleScope can only be created when
the current thread is in the running state and not parked. Add a DCHECK
for this, such that we don't need to rely on TSAN for finding such
issues.

Bug: v8:12357
Change-Id: I1f2f9b1fdf05814009f2edccf192afbb1caf6baf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3257705
Auto-Submit: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77672}

NewJSObjectWithNullProto has use cases outside of the debugger. We
previously changed it to create dictionary mode objects, which affects
the performance of non-debugger use cases. This change partially
reverts that change by differentiating between use cases.

Fixed: chromium:1266160
Change-Id: I875073bdc062cf187ef24da62324f743169d2e29
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3257706
Auto-Submit: Yang Guo <yangguo@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77671}

With LocalHeaps multiple threads may now access the heap. We now need
to bring background threads to a safepoint and make all LABs iterable
in order to be able to safely iterate the heap.

Bug: v8:12338
Change-Id: Ia39f3bf7ac13ba405c86ee2f0048c600ce36c2d8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256690Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77670}

Port commit 4de20cb1

Change-Id: I753c9e02b517d73caf12e12104196f1a5b82847c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3258452
Auto-Submit: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Reviewed-by: Liu yu <liuyu@loongson.cn>
Commit-Queue: Liu yu <liuyu@loongson.cn>
Cr-Commit-Position: refs/heads/main@{#77669}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/1eb779c..cf32591

Rolling v8/third_party/android_ndk: https://chromium.googlesource.com/android_ndk/+log/9644104..401019b

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/2c76b34..75c4ea8

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/aebf624..57c928c

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

Change-Id: Ib09b9883a06199b1e00e4fb6fa3a03f23a2f55a0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3257209Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#77668}

Port 4de20cb1

Change-Id: I8801bbcf9647c1abcb9cc5fb41720009e002d153
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3257964
Commit-Queue: Yahan Lu <yahan@iscas.ac.cn>
Commit-Queue: ji qiu <qiuji@iscas.ac.cn>
Auto-Submit: Yahan Lu <yahan@iscas.ac.cn>
Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#77667}

This CL makes sure the offset is calculated correctly to be
the return address from a C Function. Checking the size
of generated code is also fixed to take into account the extra
instruction we have from LoadPC.

Change-Id: I585c11efbe4342bc5a0d3068683b54cb563a3bc5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3257206Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#77666}

- Fix definition and declaration of noexcept methods not matching
- Disable test using deprecated APIs. Only having clang coverage is
  okay here.

Change-Id: I412d0b0087b2858fb72b0365b94b82ebc13462de
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256693
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77665}

This improves the performance of initializing instances with
private methods by 5-6x and makes it on par with initializing
instances with only public methods.

Drive-by: remove the obsolete AddPrivateField runtime function
along with the AddPrivateBrand function.

Bug: v8:10793, v8:12355
Change-Id: Ic0896adb2102db7790f955fecbdd22f61ab2e7ad
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256999
Commit-Queue: Joyee Cheung <joyee@igalia.com>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77664}

Bug: v8:12244,v8:12245
Change-Id: Iee80a34255a9c8ee5000719340a475331ab82942
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3254004Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77663}

Bug: v8:12244,v8:12245
Change-Id: I5890c4a95da6ea8098a0f7d8a90f503a89704d45
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3254003Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77662}

I'm in the process of evaluating impact of v8 snapshot and
would like to understand the amount of time spend decompressing.

BUG=chromium:1257321
TEST=none

Change-Id: I122a2151e48f61db3352da56763e3e66f7415efe
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256006
Commit-Queue: Scott Violet <sky@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77661}

This reverts commit 12e0978d.

Reason for revert: Issues should be fixed by https://crrev.com/c/3123420

Original change's description:
> Skip code flushing tests failing on NumFuzz bots
>
> Bug: v8:12088
> Change-Id: Ibc4db95125d44eca110829f1c043e769de5bd349
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3123416
> Commit-Queue: Mythri Alle <mythria@chromium.org>
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Auto-Submit: Mythri Alle <mythria@chromium.org>
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76527}

Bug: v8:12088
Change-Id: I5fcf0f149028d34ade3aa5aabc2e8de73631cac2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256551Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77660}

Add support for non-nullable reference types.
Refactor the GetValueType function. Emit a meaningful
initializer for every ref type in globals instead of an
empty one. Avoid the non-nullable recursive type by only
allowing indices that are strictly less than the current index.

Bug: v8:11954
Change-Id: Id1a405525080de7eb9dbbd4f2b8aea5f05684665
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3251171
Commit-Queue: Maria Tîmbur <mtimbur@google.com>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77659}

Explicitly specify the enum base type for Flags enums generated
from Torque bitfield structs. Before, this was implicitly a signed
integer type. This caused a recent gcc compile issue with signed
and unsigned comparisons triggered by
https://chromium-review.googlesource.com/c/v8/v8/+/3251177

Bug: v8:7793
Change-Id: Iceb3c8632cfc95766b5e6ce7fae47cf5d002b9f7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3253358
Auto-Submit: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77658}

Apply a "modulo" (i32.rem_s) operator to the array size before
allocating the array. The unbounded array allocations frequently lead to
out-of-memory crashes in the fuzzer.

R=manoskouk@chromium.org

Bug: chromium:1238063, chromium:1258319
Change-Id: Ie344f783323294c711d75b6e004ff2dca4da5923
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256548
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77657}

The upgrade to Clang pulled in a change that renamed `ProcessCompileDatabaseIfNeeded`
(https://chromium-review.googlesource.com/c/chromium/src/+/3237169).
In a similar fashion to
https://chromium-review.googlesource.com/c/chromium/src/+/3253247 we
should use an empty array as well.

R=jkummerow@chromium.org

Bug: none
Change-Id: I056af8fc7969b7c5a31631a65c18743c48ff84be
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256550
Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Auto-Submit: Tim van der Lippe <tvanderlippe@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77656}

Bug: v8:12165
Change-Id: If1e30400363229048a47ea91d6ec86d2df35d8aa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3257545
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77655}

Data race access to chunk_map_. The main thread can read the map
while the background thread (concurrent SP compiler) adds a new page
to the map.

Bug: v8:12054
Change-Id: Ie7c596f3d3aeb4dca9cc6f41ed16f39dcafc7871
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256547
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77654}

Currently it is not possible to run samples on arm architecture
I faced the issue on Macbook Pro M1
Running sample codes is crucial for getting started with the project

R=tandrii@chromium.org

Bug: None
Change-Id: Ie3ed52e68d1f7193217110d43545971c714202c9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3251026Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77653}

When a Promise-Reject handler throws an unhandled exception, we should
use that promise's context for reporting the exception to the runtime.
This avoids a null-pointer deref.

Fixed: chromium:1263994
Change-Id: I3792a1884af4a83991249d612caf15588ea77dad
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3250912
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77652}

This CL adds a minor change to the arm/arm64 simulators to support up to
20 arguments in a C function call. This change is necessary for an
upcoming CL which adds float support to the simulator and tests with
more than 20 arguments, see
https://chromium-review.googlesource.com/c/v8/v8/+/3060486

Bug: chromium:1052746
Change-Id: I60ae603c96554525d28f1cd248d7766f86c9cc3e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256785
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77651}

Bug: v8:11111
Change-Id: Icefaa3f1090f9b41dc7837e3a95bbfd633703757
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3251179Reviewed-by: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77650}

When materializing a scope object, we previously assumed that we will
not have any name collisions. This is not correct e.g. when eval
introduces an aliased local variable.

This CL resolves this wrong assumption. The test case should not crash.
It however fails as there is a bug in how debug-evaluate should resolve
variables defined in eval.

R=verwaest@chromium.org

Fixed: chromium:1240962
Bug: chromium:1264852
Change-Id: I0e41e7905589735e25eff221376d09997ea99117
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3250911
Auto-Submit: Yang Guo <yangguo@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77649}

This reverts commit ca753bca.

Reason for revert: Need another whitespace change.

Original change's description:
> Whitespace change to test alerts
>
> No-Try: true
> Change-Id: I0f6211c6fc3990051ea6c50c815cc1fcc9f4643e
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256787
> Auto-Submit: Michael Achenbach <machenbach@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@{#77643}

Change-Id: I81399910d7fa4d61e9459f85001e1563acba2a4c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256546
Auto-Submit: Michael Achenbach <machenbach@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@{#77648}

After https://crrev.com/c/3247035 compilation with gcc may fail
with the following error:
```
error: comparison between 'enum v8::internal::
compiler::BitsetType::<unnamed>' and 'enum v8::internal::
TurbofanTypeBits::Flag'
```

Change-Id: I5edf28e335483be66ae46e4359e0a4dc83341adf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3255303Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#77647}

Since early regexp errors were implemented in
crrev.com/a56874d3, the JS parser
calls into the regexp parser to validate the regexp literal syntax.

For these calls, the JS parser passes its Zone to the regexp parser.
This means that scripts with multiple regexp literals are all parsed
using the same Zone memory. Very large scripts with many (think
hundreds of thousands) regexp literals may thus run out of memory
whereas previously they would parse and run successfully.

This CL fixes the OOMs by resetting the state of the JS parser Zone
around regexp parser calls. We introduce a new ZoneScope class,
similar to HandleScope, which controls the lifetime of zone objects
allocated within its scope. In other words:

 {
   ZoneScope zone_scope(zone);  // Store zone state S.
   // ... Allocate objects O in zone.
   // zone is now in state S'.
 }
 // zone_scope goes out of scope, reset zone to state S. Objects O
 // are freed and no longer usable.

Fixed: chromium:1264014
Bug: v8:896
Change-Id: I3e7ac36f25a9d6c4eda2460bd1bea9814685e89b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256783Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77646}

In stress runs a GC may kick in before assertOptimized() is called
on the optimized function, causing it to deoptimize and the test
would fail even if the function is optimized as expected.
Adding --no-stress-flush-code --no-flush-bytecode fixes the timing
issue.

Bug: v8:12332
Change-Id: If43c2a06e84c0e3b5e21f7bde160340a0fc742f4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3237326Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Joyee Cheung <joyee@igalia.com>
Cr-Commit-Position: refs/heads/main@{#77645}

Fixes `buildifier` warning, since the alias has the same name
as the icu/noicu/d8 targets.
The alias was used in the CI bot, but this is no longer the case.

No-Try: true
Change-Id: Ie8e9b6b2d8510c78982ed4c6845b51a4d4378106
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3253356
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77644}

No-Try: true
Change-Id: I0f6211c6fc3990051ea6c50c815cc1fcc9f4643e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3256787
Auto-Submit: Michael Achenbach <machenbach@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@{#77643}