See issues in
https://github.com/tc39/test262/issues/3553
and
https://github.com/tc39/proposal-temporal/issues/2165

Bug: v8:11544
Change-Id: Iefe6353e95178e1241a7f29c80b24baad2a8428d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3835266
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82545}

Pass undefined for option in calendar monthDayFromFields and
yearMonthFromFields

https://github.com/tc39/proposal-temporal/issues/1685

Bug: v8:11544
Change-Id: I3fd37e176bd83dc0b01d92a3c323d2933291c49b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3835262Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82544}

Port 805df68f

Original Commit Message:

    Baseline write barrier needs to use different page flag mask to also
    call into the slow path of the barrier for old-to-shared pointers.

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

Change-Id: I00c179ac04b74b1196951ae4d8c868d312d5a856
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3834633
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82543}

When a string is in a local or on the value stack at a breakpoint,
DevTools should be able to show its value.

Bug: v8:12868
Change-Id: I79014d74c8ef7b212469382bdedca85568b3bcc7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3834038
Commit-Queue: Philip Pfaffe <pfaffe@chromium.org>
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Philip Pfaffe <pfaffe@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82542}

This reverts commit e50472d6.

Reason for revert: compilation-hints-decoder breakage
https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20ASAN/45708/overview

Original change's description:
> [wasm] Refactor compilation tier computations
>
> The way we initialized the "compilation progress" was pretty convoluted,
> with multiple levels of functions being called for initializing every
> single slot.
>
> This CL refactors this to compute one default value for the whole
> module, and only modifies those slots that need special handling (e.g.
> because of compilation hints, or lazy/eager compilation after
> deserialization).
>
> We also rename "liftoff_functions" to "eager_functions" in the
> deserialization path; the idea is that those functions should get
> eagerly compiled because we expect them to be needed during execution.
> Usually they would be Liftoff-compiled, but it's more consistent to use
> the existing logic to choose the baseline tier. In the default
> configuration, this will still use Liftoff, but if Liftoff is disabled
> we will use TurboFan instead.
>
> R=​jkummerow@chromium.org, ahaas@chromium.org
>
> Bug: v8:12425
> Change-Id: Ie58840b19efd0b1e98f1b02d5f1d4369410ed8e1
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3829606
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#82521}

Bug: v8:12425
Change-Id: I45cef01ea40c50c3b86fbceca9b482a9bded535e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3835290
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Owners-Override: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82541}

This is a reland of commit 9cca4e60

This CL disables the mjsunit tests as well in single generation mode.

Original change's description:
> [heap] Handle old-to-new slot promotion to shared heap
>
> The GC might promote an in-place internalizable string from new space
> directly into the shared heap. This means that the GC might need to
> create OLD_TO_SHARED slots when updating OLD_TO_NEW slots.
>
> This CL implements this both for minor and full GCs.
>
> Bug: v8:11708
> Change-Id: I6102b9024d1dd5dd602d654b006ea5897ab5baa6
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3804604
> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#82298}

Bug: v8:11708
Change-Id: I9e96fe7c3f263d4088536d3a15af6d00fa82625e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3828099Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82540}

This fixes C++20 compile errors due to math between disparate enum types
being deprecated (e.g. ENUM_A_VAL | ENUM_B_VAL).

Bug: chromium:1284275
Change-Id: I7fc83888bb9c8156909cbc3ea1b30ef94d4a2c1f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3830986
Auto-Submit: Peter Kasting <pkasting@chromium.org>
Commit-Queue: Peter Kasting <pkasting@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82539}

Baseline write barrier needs to use different page flag mask to also
call into the slow path of the barrier for old-to-shared pointers.

Bug: v8:11708
Change-Id: I955f30376f3de912b418298cdcf1e38dd2adda2e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3834254
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82538}

That entails that V8 built with bazel does not support
snapshot compression.

NOTE: Snapshot compression has always been supported, but it has never
been enabled. We do not even have a flag for it.

Change-Id: I4b67db618be2c62e6a6f34e71eb0dac2ec26fa36
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3834031Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82537}

The "length" field of strings should never be mutated once it has
been initialized. This means that the checks done by StringRef::length
were never really useful. This CL thus removes them.

Bug: chromium:1352386
Change-Id: I49f681daad119553eb0d4f1c2315bff5138197d7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3829541
Commit-Queue: Darius Mercadier <dmercadier@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82536}

This reverts commit 6ec7be21.

Reason for revert: Speculative revert for https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win64/47984/overview

Original change's description:
> [sandbox] Sandboxify WasmExportedFunctionData::sig
>
> This CL changes the WasmExportedFunctionData class to store a direct
> ExternalPointer to the wasm::FunctionSig instead of referencing it
> through a Foreign. This in turn makes it possible to use a unique
> pointer tag for that external pointer when the sandbox is enabled.
>
> Drive-by: move WasmInternalFunction::call_target external pointer to the
> end of the object, in line with other external pointer fields.
>
> Bug: v8:10391, v8:12949
> Change-Id: Ic3ff622a075c9eaa2f8d8835803437466290c928
> Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng,v8_linux_arm64_sim_heap_sandbox_dbg_ng
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3829086
> Commit-Queue: Samuel Groß <saelo@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#82523}

Bug: v8:10391, v8:12949
Change-Id: I18a7c9603e30d7cd78fd599e59596015260a5818
Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng,v8_linux_arm64_sim_heap_sandbox_dbg_ng
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3834259
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Owners-Override: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82535}

Port 00746406

Original Commit Message:

    ... which affect how builtin calls are generated.

    This CL replaces the following boolean options
     - builtin_calls_as_table_load,
     - inline_offheap_trampolines,
     - short_builtin_calls,
     - use_pc_relative_calls_and_jumps,

    with an enum BuiltinCallJumpMode and a boolean option
    use_pc_relative_calls_and_jumps_for_mksnapshot.

BUG=
LOG=N

Change-Id: I9ad83d27fc5b295ca4827e9608d4be10f7b10551
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3831638
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#82534}

.. at which time, the standard ML frame is not yet set up. Instead, an
INTERNAL frame with a few fixed tagged stack slots is created in
preparation for the runtime call in GenerateTailCallToReturnedCode.

Bug: v8:7700
Fixed: v8:13192
Change-Id: Icd7adbc25aa6a5446a43a0fb3ee70c65ee33cc5d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3835683
Auto-Submit: Jakob Linke <jgruber@chromium.org>
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82533}

The range barrier needs to update the old-to-shared remembered set as
well.

Bug: v8:11708
Change-Id: I79c077bb0131f026bd8c6726100df8c5b576eaca
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3828100Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82532}

Currently getting a link error during debug builds.

Change-Id: I6baab7ea0e22a4d0faf4863e8c3b44f550ec900f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3834029Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#82531}

This reverts commit 776b9eb9.

Reason for revert: Wrong email address

Original change's description:
> [WATCHLISTS] Add riscv watch
>
> Change-Id: I6e4dc69d6f22d3108ae74552b72bcafc0be3db64
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3793476
> Commit-Queue: Yahan Lu <yahan@iscas.ac.cn>
> Reviewed-by: Victor Gomes <victorgomes@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#82092}

Change-Id: Ie5a9c4ca42e77f1d07fcbe8fbb521e97a0ae7422
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3834579
Auto-Submit: Yahan Lu <yahan@iscas.ac.cn>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82530}

A switch can only produce a hole if it does not have fallthrough.
This actually only happens for SwitchOnGeneratorState bytecode.

We calculate the highest post dominating hole by traversing each
target.

Bug: v8:7700
Change-Id: Ia86ac08b1062dc48296e24beb95b3e3c3418ea6b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3826045
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82529}

due the different offset values on BE vs LE, the field_index
is incorrect on BE causing the visited_fields_ not to be set
to false during reference iteration.

Change-Id: I8f451cee7f9a18990de7ff2c67c904b1769b4f5e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3831639
Commit-Queue: Junliang Yan <junyan@redhat.com>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82528}

This allows V8 to be compiled without zlib.

Currently we use zlib for 3 features:
1. Snapshot compression. The cl asserts v8_snapshot_compression
   implies v8_use_zlib.
2. Compression of translation arrays (experimental flag). The runtime
   flag is only enabled if v8_use_zlib.
3. Snapshot checksums. We fallback to a simple Fletcher algorithm if
   v8_use_zlib is false.

Change-Id: If043c3c21bba4d734573d7e1199d3ddf17b84f41
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3833817
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82527}

This reverts commit a362c78e.

Reason for revert: Failure is fixed now, see bug.

Original change's description:
> Disable failing wasm/grow-memory test on arm64 mac
>
> Bug: v8:13184
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Change-Id: I0200ce6e7877acf06cbffd8f7edd276119278f50
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3829468
> Auto-Submit: Nico Hartmann <nicohartmann@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#82434}

Bug: v8:13184
Change-Id: I3dbe2e710e036efcc5b6375687cfcb099091ae1e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3829941
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#82526}

When a name's hash is a forwarding index, HasHashCode() and hash() now
implicitly retreive the hash from the string forwarding table.

Bug: v8:12957
Change-Id: Ibb278df16b1ae6a54c7cbe757c65d3a5210168e9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3827880
Commit-Queue: Patrick Thier <pthier@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82525}

Bug: v8:9407
Change-Id: Id4ca4682d3fe4b2222a656c80dff95e5c099d5ed
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3822671Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Qifan Pan <panq@google.com>
Cr-Commit-Position: refs/heads/main@{#82524}

This CL changes the WasmExportedFunctionData class to store a direct
ExternalPointer to the wasm::FunctionSig instead of referencing it
through a Foreign. This in turn makes it possible to use a unique
pointer tag for that external pointer when the sandbox is enabled.

Drive-by: move WasmInternalFunction::call_target external pointer to the
end of the object, in line with other external pointer fields.

Bug: v8:10391, v8:12949
Change-Id: Ic3ff622a075c9eaa2f8d8835803437466290c928
Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng,v8_linux_arm64_sim_heap_sandbox_dbg_ng
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3829086
Commit-Queue: Samuel Groß <saelo@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82523}

Very small change to the arm64 macro assembler.
This improves Preact by 0.8% on a Neoverse-N1 machine.

Change-Id: I867e73eb9b999e6f74fd54d72c6bf3f139d3b62f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3833819
Commit-Queue: Martyn Capewell <martyn.capewell@arm.com>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82522}

The way we initialized the "compilation progress" was pretty convoluted,
with multiple levels of functions being called for initializing every
single slot.

This CL refactors this to compute one default value for the whole
module, and only modifies those slots that need special handling (e.g.
because of compilation hints, or lazy/eager compilation after
deserialization).

We also rename "liftoff_functions" to "eager_functions" in the
deserialization path; the idea is that those functions should get
eagerly compiled because we expect them to be needed during execution.
Usually they would be Liftoff-compiled, but it's more consistent to use
the existing logic to choose the baseline tier. In the default
configuration, this will still use Liftoff, but if Liftoff is disabled
we will use TurboFan instead.

R=jkummerow@chromium.org, ahaas@chromium.org

Bug: v8:12425
Change-Id: Ie58840b19efd0b1e98f1b02d5f1d4369410ed8e1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3829606
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82521}

The Code-less builtins mode is still disabled.

Bug: v8:11880
Change-Id: I725ae4187bb394f79c69d5d0d971961e3ea406e8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3827879
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82520}

We should only tier to Sparkplug from Ignition. Previously, the
'!ActiveTierIsSparkplug' condition was correct since only Ignition (and
Sparkplug itself) entered the TieringManager. But now that Maglev is
also present, the condition must be clarified to 'ActiveTierIsIgnition'.

Bug: v8:7700
Change-Id: Ic7ea898facf9ce65407d09cead35e0181e49db31
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3835562
Commit-Queue: Jakob Linke <jgruber@chromium.org>
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82519}

.. just because it's convenient to see the object type and code kind for
short prints.

Before:
 - code: 0x014c00257515 <Other heap object (CODE_DATA_CONTAINER_TYPE)>

After:
 - code: 0x39b7002573b1 <CodeDataContainer MAGLEV>

Bug: v8:11880
Change-Id: I02576ffdef509ed021fc5632ea19448387188130
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3826255Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Jakob Linke <jgruber@chromium.org>
Auto-Submit: Jakob Linke <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82518}

M1 is known to have regression in MotionMark.
Fuchsia fails due to binary size increase.

Bug: chromium:1325007
Change-Id: I599c53bf1318dfcc7b40764e89df81b972374ed3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3835682Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Auto-Submit: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82517}

This reverts commit 437b311a.

Reason for revert: Causes issues for other CLs: https://ci.chromium.org/ui/p/v8/builders/try/v8_linux_chromium_gn_rel/76508/overview

Original change's description:
> [test] Migrate cctest/test-inspector to unittests/
>
> test-inspector.cc -> inspector-unittest.cc
>
> Bug: v8:12781
> Change-Id: I37d2bc2d023ffd91b94d5a09cdbfe4a6e22fecf1
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3813062
> Reviewed-by: Jakob Linke <jgruber@chromium.org>
> Commit-Queue: Jakob Linke <jgruber@chromium.org>
> Reviewed-by: Hannes Payer <hpayer@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#82512}

Bug: v8:12781
Change-Id: I3355e5828814fdd489f7d31ecb694419b95f9c5b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3829939Reviewed-by: Liviu Rau <liviurau@google.com>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#82516}

- Move InnerPointerToCodeCache to using internal callbacks.
- Refactor internal and external callbacks to use a unified interface.

Bug: v8:13184
Change-Id: If0006d324b0433f5d6bbf00b6d0fc1a2589227bc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3834583Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82515}

Benchmark BitwiseAnd, Divide, and Exponentiate. Add explicitly truncated
cases to Multiply.

Bug: v8:9407
Change-Id: I89b2a624c0a60034fbe875958461a5f2ab826ade
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3829467
Commit-Queue: Qifan Pan <panq@google.com>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82514}

Distinguish internalized forwarding indices from external forwarding
indices stored in a strings hash.

Bug: v8:12957
Change-Id: Ic01386a3291ac8d618cf4282aa7112e74e1b9169
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3829471Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82513}

test-inspector.cc -> inspector-unittest.cc

Bug: v8:12781
Change-Id: I37d2bc2d023ffd91b94d5a09cdbfe4a6e22fecf1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3813062Reviewed-by: Jakob Linke <jgruber@chromium.org>
Commit-Queue: Jakob Linke <jgruber@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82512}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/39f80da..339f8c6

Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/98014eb..3d64821

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/22963c3..a56fd8b

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

Change-Id: I2570fdd32bbf2a04bd6ba8d05783aef01b39df44
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3835075
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@{#82511}

Port commit c5d48121

Bug: v8:11708
Change-Id: Ia50968a169d6b13370f65d5e5fb84a8794cfe216
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3835322
Auto-Submit: Liu Yu <liuyu@loongson.cn>
Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/main@{#82510}

Port commit c3ca8158

Change-Id: I76fd54522ec901534a13af6eadb917f6e8608d14
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3835264
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Auto-Submit: Liu Yu <liuyu@loongson.cn>
Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/main@{#82509}

For Example:
------------------------
691:  Int32Constant[8]
1857: Word32And(1838,691)
1858: Word32Equal(1857,691)
1859: Branch(1858,2141)
======>
691:  Int32Constant[8]
1857: Word32And(1838,691)
1859: Branch(1857,2141)
------------------------


Assembly code:
------------------------
andl r9,0x8
cmpb r9l,0x8
jz 0x7f242017bf3c
======>
testb r9,0x8
jnz 0x7f56c017be2e
------------------------


Change-Id: I62a2a3d4bda5a82011b1c6aa745c1c8dc8cf4525
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3809052Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Jianxiao Lu <jianxiao.lu@intel.com>
Cr-Commit-Position: refs/heads/main@{#82508}

Bug: v8:11544
Change-Id: Iaf285f431e742e607e09d37c47a94d3f86806b13
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3833434Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82507}

This reverts commit 6561d415.

Reason for revert: Adds ~300kb of code size, breaking
https://ci.chromium.org/ui/p/chromium/builders/try/fuchsia-binary-size/53196/overview

Original change's description:
> cppgc: Enable pointer compression on all platforms but M1
>
> M1 still seems to have some performance regressions on
> MotionMark/multiply.
>
> Bug: chromium:1325007
> Change-Id: I12ce44b8cef646f09a3c74ba533dfee8dffdd2ce
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3829540
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Anton Bikineev <bikineev@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#82485}

Bug: chromium:1325007
Change-Id: Ib7aff1e1859ebd17cefd05c5f627a713f045fd26
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3831333
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82506}