This reverts commit 6aadf0e0.

Reason for revert: Maybe add arm64 mac to the CQ next time :) https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Mac%20-%20arm64%20-%20release%20builder/7729/overview

Original change's description:
> [baseline] Add max threads flags for CSP
>
> Bug: v8:12054
> Change-Id: I49238fe673858b60c2a2a935ed1f45f465269216
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3308707
> Auto-Submit: Victor Gomes <victorgomes@chromium.org>
> Commit-Queue: Camillo Bruni <cbruni@chromium.org>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#78187}

Bug: v8:12054
Change-Id: I1b53ea3eaaaa39cdb1b9a471aa716b5af7f5e3d6
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3310838
Auto-Submit: Leszek Swirski <leszeks@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@{#78188}

Bug: v8:12054
Change-Id: I49238fe673858b60c2a2a935ed1f45f465269216
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3308707
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78187}

When emitting code, character ranges must only specify ranges which
the actual subject string (one- or two-byte) may contain.

This was not always the case, specifically for ranges with
`from <= kMaxUint8` and `to > kMaxUint8`.

The reason this is so tricky: 1. not all parts of the pipeline know
whether we are compiling for one- or two-byte subjects; 2. for
case-insensitive regexps, an out-of-bounds CharacterRange may have an
in-bounds case equivalent (e.g. /[Ÿ]/i also matches 'ÿ' == \u{ff}),
which only gets added somewhere in the middle of the pipeline.

Our current solution is to clamp immediately before code emission. We
also keep the existing handling/dchecks of the 0x10ffff marker value
which may occur in the two-byte subject case.

Bug: v8:11069
Change-Id: Ic7b34a13a900ea2aa3df032daac9236bf5682a42
Fixed: chromium:1275096
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306569
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78186}

Enable the prefinalizers scope and add a top level AtomicSweep scope
so that prefinalizers are accounted as part of sweeping.

Change-Id: I9dade6a2367d30d20395de30c3db84922fee5a49
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306567Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78185}

We sometimes use ReportError() inside of Torque parser actions.
The resulting exception prevented the ParseResultIterator from being
consumed completely, which in turn triggered a CHECK failure instead
of the correct error message.

Change-Id: Ie8dcdf67094e5ad5d68934e8a2921d5f52bd3092
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306973
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Auto-Submit: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78184}

Add suppose for compiling non-eager, non-top-level inner functions in
parallel, using the compiler dispatcher. This behaviour can be enabled
with --parallel-compile-tasks-for-lazy.

There are a couple of consequences:

  * To support this we need support for off-thread ScopeInfo
    deserialization, so this adds that too.
  * The previous --parallel-compile-tasks flag is renamed to the more
    descriptive --parallel-compile-tasks-for-eager-toplevel.
  * Both parallel-compile-tasks flags are moved onto
    UnoptimizedCompileFlags so that they can be enabled/disabled on a
    per-compile basis (e.g. enabled for streaming, disabled for
    re-parsing).
  * asm.js compilations can now happen without an active Context (in
    the compiler dispatcher's idle finalization) so we can't get a
    ContextId for metric reporting; we'd need to somehow fix this if we
    wanted asm.js UKM but for now it's probably fine.
  * Took the opportunity to clean up some of the "can preparse" logic in
    the parser.

Change-Id: I20b1ec6a6bacfe268808edc8d812b92370c5840d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3281924
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Emanuel Ziegler <ecmziegler@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78183}

c++17 is being enabled on some platforms:
https://crrev.com/c/3306812
which causes gcc to emit the following warning:
```
error: null argument where non-null required (argument 2)
 memcpy(storage_ + kReturnCount, param_types.data(),
   ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```

Unlike clang, gcc is not able to detect if memcpy is actually
being executed or not when src is NULL:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=22179

Therefore need to disable this warning at this location.

Change-Id: I44da9f698ef724e39bb9c7d4b235d1004d52f491
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3308916Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#78182}

The {TierUpFunction} method is unused after https://crrev.com/c/3275570.

R=jkummerow@chromium.org

Bug: v8:12281
Change-Id: I81882a6f1907ff3f4504dea8e9e307cbd674e682
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306980Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78181}

MSVC doesn't define __cplusplus appropriately, so use _MSVC_LANG instead.

Bug: chromium:1274247
Change-Id: I40ef9f42f4e55b3410f89ff23c228f1b1201c4ef
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3308423
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Adam Klein <adamk@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78180}

Try blocks (whether catch or finally) will unconditionally create
handler tables and start a new basic block for the exception handler.
This can accidentally resurrect a dead block when the entire try block
is dead (and hence can never enter the exception handler in the first
place).

Add a deadness check to BuildTryCatch/Finally to fix this.

Bug: chromium:1273677
Change-Id: Icda9deb1459e47de5cb83e7b636299e24c3ebe77
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306555
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78179}

Some performance sensitive paths in V8 (compilation/json parsing) or
paths with high allocation/freeing throughput can suffer from not being
able to reuse recently freed allocations. These paths can also
significantly increase the working set and cause large number of page
faults. For such paths (at least as an initial measure) we are planning
to disable allocation quarantining.

The CL provides a way for the embedder to hook in *Scan functions that
disable/enable quarantining. It also disables *Scan for json parsing and
compilation jobs.

Bug: chromium:1249550
Change-Id: I0274f66010435f3d4d091fe70fabcd20f46dc0d2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306389
Auto-Submit: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78178}

mksnapshot is compiled/ran in the host configuration (usually x64), we
need to propagate the flag (using bazel transitions) to tell mksnapshot
to generate code to a different architecture.

No-Try: true
Change-Id: I5923f5895872a8cbf2982925a545855a330c51fd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306568
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78177}

Until now, LABs were accessed from generated code via external
references, e.g., see NewSpaceAllocationTopAddress() and
NewSpaceAllocationLimitAddress().

This patch places them in the IsolateData, so they can be accessed
using Isolate-constant offsets. It affects the hot path of all TF
generated code.

Bug: v8:12428
Change-Id: I7bfd54bea4febead404829d8e0b058b6cf53a374
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3303800
Commit-Queue: Nikolaos Papaspyrou <nikolaos@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78176}

Rolling v8/third_party/icu: https://chromium.googlesource.com/chromium/deps/icu/+log/bf66d37..edf883a

CP pull/1948 to rm deprecated/rm header (Frank Tang)
https://chromium.googlesource.com/chromium/deps/icu/+/edf883a

Silence C++17 deprecation warning on MSVC (Leszek Swirski)
https://chromium.googlesource.com/chromium/deps/icu/+/e80c574

icu: Check initialization result (Maksim Ivanov)
https://chromium.googlesource.com/chromium/deps/icu/+/e107bc5

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

Change-Id: Iaacec47f0594a38f02f12be412fb4d4e31d733b2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3310417
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
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Cr-Commit-Position: refs/heads/main@{#78175}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/c829343..99a1dc1

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/bd8b0c2..5695a84

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/8676aa9..5deb9c9

Rolling v8/third_party/fuchsia-sdk: https://chromium.googlesource.com/chromium/src/third_party/fuchsia-sdk/+log/1889684..5e0b0d0

Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/2231b7c..e8c257c

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

Change-Id: Id9f1b47b5f743886e4d2e2f024e6b790aebf3a5c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3308834
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Cr-Commit-Position: refs/heads/main@{#78174}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/e0d5dbf..c829343

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/8cf0922..bd8b0c2

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/512ca5c..8676aa9

Rolling v8/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest/+log/e2f3978..bb92160

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/9c18fde..401e727

Rolling v8/tools/luci-go: git_revision:7422359d33c606e8adb0e9cf461837eb9b49431f..git_revision:e4c95e4e4cdc987f1860e4111589606bcd3a8f32

Rolling v8/tools/luci-go: git_revision:7422359d33c606e8adb0e9cf461837eb9b49431f..git_revision:e4c95e4e4cdc987f1860e4111589606bcd3a8f32

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

Change-Id: Ia3f9d9b245812be6b54acbdff4a15bfe5c08a0d4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3308828
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
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Cr-Commit-Position: refs/heads/main@{#78173}

Implement the changes in
https://github.com/tc39/proposal-intl-locale-info/pull/44
So weekInfo will return weekend as an array instead of weekendStart
and weekendEnd.

Bug: v8:11638
Change-Id: I775b003b36f67179943911faa7f77a323ad9f6f1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3307685Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78172}

This avoids a compile error when building with GCC in C++17 mode.

Bug: v8:12449
Change-Id: I14817895d31019fb71fc71b061f2ecf576dbc711
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3307102
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78171}

This reverts commit 3ee4804f.

Reason for revert: breaks blink_unit_tests:
https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Blink%20Linux/15074/overview

Original change's description:
> [top-level-await] Remove --harmony-top-level-await
>
> TLA has been shipped since v8.9.
>
> Bug: v8:9344, chromium:1271114
> Change-Id: Ibebf21da8bacb1f0d212390133847495ad8553e5
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3307103
> Commit-Queue: Shu-yu Guo <syg@chromium.org>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Reviewed-by: Marja Hölttä <marja@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#78169}

Bug: v8:9344, chromium:1271114
Change-Id: I0874bcaba18fde3b48f5ef7eeae89f2fa4978d51
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3308422
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78170}

TLA has been shipped since v8.9.

Bug: v8:9344, chromium:1271114
Change-Id: Ibebf21da8bacb1f0d212390133847495ad8553e5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3307103
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78169}

For years win32-headers.h has "helpfully" set _WIN32_WINNT if it has not
already been set. This has caused problems because the value specified
in win32-headers.h falls behind that set in the config files. This
change removes the fallback and makes it an error to not set this macro
in the build config files.

This only affects MinGW builds where it has caused confusion.

Bug: v8:12099
Change-Id: I013aadc307376fa97afa7b7752910f4fa4a6db82
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3272648Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Bruce Dawson <brucedawson@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78168}

Currently, JSFinalizationRegistry has a BodyDescriptor that iterates
next_dirty as a custom weak field, and it has a WeakListVisitor that
cleans up any items from the list that should be removed. However, none
of that code is used, because JSFinalizationRegistry objects are created
with visitor ID kVisitJSObjectFast. This change gives them a custom
visitor ID so that next_dirty can be treated as weak.

Bug: v8:12430
Change-Id: I31c1935257ad508b13a3e684662d2ca406d8ed19
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3307096
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78167}

Add an approximate bailout for sweeping on allocation to avoid
reporting scopes when no work is being done.

Bug: v8:12286
Change-Id: I7589429805af702c35d51f9a37eae596268dedc5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306983Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78166}

- Handle empty script sources
- Fix list-panel groups, order by count

Bug: v8:10644
Change-Id: I03d3915f709d47429040b591c0271e951eca58e9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3289642
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78165}

Instead of potentially mapping a larger region than requested, then
unmapping parts of it to obtain a mapping with the desired alignment, we
now compute the ZX_VM_ALIGN_X constant corresponding to the specified
alignment and use that in the call to zx_vmar_map.

Bug: chromium:1218005
Change-Id: Ia36de6a06f3f2d625d177320d7e46fd29331f711
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3307054Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Samuel Groß <saelo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78164}

Change-Id: I0df2943f246ea5dc8c56bb196c097dcdd58f1bea
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3308801Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78163}

- V8::Deprecate ShutdownPlatform in favor of V8::DisposePlatform
- Rename i::V8::TearDown to i::V8::Dispose
- Clean up i::V8::Initialize
- Remove needless V8::Initialize() calls in cctests
- Remove CcTest::DisableAutomaticDispose()
- Add checks to Isolate::Allocate and Isolate::Dispose that there is
  and active platform

Change-Id: Iac84f9ade9d1781e9e8b8c88ea8fe74013f51c4a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306482
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78162}

... by using cage-friendly versions of HeapObject::IsBlah(),
HeapObject::map(), HeapObject::map_word() and HeapObject::Size()
on hot paths.

Bug: v8:11880
Change-Id: I70b72e46cc867b6b2ddbc48cd5e6a74ae4208397
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3308800Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78161}

R=clemensb@chromium.org

Bug: chromium:1274976
Change-Id: I7878c44fcf11ef7b8b850ff50cdd1062c6e8122a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306979Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78160}

The logic for printing a safepoint table is currently duplicated for
Wasm code and on-heap code, with slight differences.
This CL provides a central {SafepointTable::Print} method that is used
in both scenarios.
The format is slightly changed to explicitly specify which bitmap
corresponds to stack slots and which one to registers.

R=jkummerow@chromium.org

Bug: v8:12401
Change-Id: I67366b1f9a92450a6ebec4210ab4811800a54f34
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306976
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78159}

--predictable requires deterministic heap allocation sequences.
Guarantee these for compilation dependency installation by sorting the
dependency list if --predictable is enabled.

Bug: v8:12397
Change-Id: Ia4660f2249a1c3390a932ae057a5b4d4537497ab
Fixed: v8:12447
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306488
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78158}

It's deprecated in C++17 and not needed (it was needed for static const,
but not for constexpr). It's needed in C++14, but can trigger
deprecation errors in C++17, so include it conditionally on __cplusplus.

Bug: chromium:1274247
Change-Id: I92524f377bb92ac2aa008f15830920786a1c1432
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3308795
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78157}

This will allow making HeapObject::IsBlah() checks faster when external
code space is enabled.

Bug: v8:11880
Change-Id: I68473ba88063c555c90330c9748462adeb35aa0b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3308797Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78156}

Bug: v8:11880
Change-Id: I557c4d6f83bc3203c115824e26fcb2ecf0473e1a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3308796
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78155}

While debugging, we discovered a Blink misconfiguration in the
navigator.mimeTypes object. We fixed the issue in
https://crrev.com/c/3303674, but let's also document on the V8 side when
you can hit the DCHECK and where to look next.

R=yangguo@chromium.org

Bug: chromium:1262066
Change-Id: I256331ec4296963deb152485d8c6699b75c42e37
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3302804
Auto-Submit: Tim Van der Lippe <tvanderlippe@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Tim Van der Lippe <tvanderlippe@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78154}

This will allow making HeapObject::IsBlah() checks faster when external
code space is enabled.

Bug: v8:11880
Change-Id: Ibee4e19859c23f11316e3cfd7961f58d8e58240a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3301478
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78153}

This reverts commit 05da6708.

Reason for revert: Guess I was wrong: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Clusterfuzz%20Linux64%20ASAN%20no%20inline%20-%20release%20builder/25729/overview

Original change's description:
> [turbofan] Remove out-of-line defn of constexpr vars
>
> It's deprecated in C++17 and not needed (it was needed for
> static const, but not for constexpr)
>
> Bug: chromium:1274247
> Change-Id: If92d7b6300493cb186ff2ade8f6b6a4820d5a264
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306429
> Commit-Queue: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Auto-Submit: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#78149}

Bug: chromium:1274247
Change-Id: I26f8377b331895363fec5329a08261ebec3696ef
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306431
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Owners-Override: Leszek Swirski <leszeks@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@{#78152}

The CL converts uses of v8::internal::Worklist to heap::base::Worklist
which does not require to know the number of tasks working with the
work list upfront. heap::base::Worklist is the common implementation
for V8's heap and cppgc and should be used/optimized going forward.

Bug: v8:12426
Change-Id: Id6ef1aa05df858b01df90d653b6421a9bb68b997
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306382Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78151}

Avoid a few handle derefs for this semi-hot startup function.

Change-Id: Id61135d6031905d2bee07cadc1396b144b43df9a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306428Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78150}

It's deprecated in C++17 and not needed (it was needed for
static const, but not for constexpr)

Bug: chromium:1274247
Change-Id: If92d7b6300493cb186ff2ade8f6b6a4820d5a264
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306429
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78149}