Clean up two flags which control features shipped in m99
  harmony_intl_locale_info
  harmony_intl_enumeration

Bug: v8:10743, v8:11638
Change-Id: I856afaceb0972052d1bcc70b162e8f9ee9071dd6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3508169Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79397}

Bug: v8:11544
Change-Id: I781119561db5ec05b12b9bca31c98403355e35ac
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3378882Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79396}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/cd24f73..eaff38e

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/1f05f8e..548c235

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

Change-Id: I004a6e8b76baee2d38a93b8843ea9625d6c6a9ee
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3508461
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Resurrecting finalizers cause all sorts of problems, from performance
penalties when used to hard-to-debug memory leaks.

There's no more usage left in Blink as well as V8 internally, so
deprecate resurrecting finalizers.

Bug: v8:12672
Change-Id: I998373d6468bbd3bd581a41dec8904de80561f43
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3507991Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79394}

https://chromium.googlesource.com/external/github.com/tc39/test262/+log/e87b0048c4..f7fb969c

Bug: v8:7834
Change-Id: I9581eed719044edc433d022f58cce0506c083594
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3504183Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79393}

Fix typo which cause morePrecision output for lessPrecision

Bug: v8:10776
Change-Id: I164abbdfa30ae1c4064a75abdd04fdbb1118dc0d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3501835Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79392}

Fix typo which should check y match -∞ but checked -0

Bug: v8:10776
Change-Id: I6bddbf91dbee2411d47a5e3b8ccbc456a0602bf7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3504646Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79391}

Change-Id: I4a1e9ebc1a8c2efd1cdc46079519bd62fd90dc8e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3507200Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79390}

Change-Id: I29b48de9e0f6d6db5fba50d4a081656d869d9892
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3506309
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79389}

Instead of returning a boolean success/failure value, the Free* methods
of the VirtualAddressSpace API now terminate the process on failure, as
this implies a bug in the caller. This is simpler than CHECKing for
success in all callers and also provides more details about the possible
cause of the failure.

Bug: v8:12656
Change-Id: I5b469ae2c564068cff74e60b7e98f6a4776a239d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3506992Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Samuel Groß <saelo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79388}

Change-Id: I03d1dfeb62c9c28debb902095ed070b529f3d978
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3507451Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79387}

Bug: v8:7700
Change-Id: Idc36a42307b05beefb2ff16e52c9a6c9b7a166f7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3500401Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79386}

Change TestPlatform's old_platform_ field to an atomic, so that its
write in the constructor and subsequent reads (that can be cross thread)
are race-free.

Hopefully this fixes the TSAN flakes we've been seeing.

Bug: v8:9054
Change-Id: Ib2b6edd21508ffa18debd6326dd7a100266125f7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3506505
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79385}

This simplifies various bits of logic around EmbedderDataSlots as the
raw part will now always contain a valid index into an external pointer
table entry.

This CL also unifies the initialization of EmbedderDataSlots by
providing a EmbedderDataSlots::Initialize method and adds more
documentation about the layout of EmbedderDataSlots in the different
configurations.

Bug: v8:10391
Change-Id: Ie952598898a7a6c9d40b28d3a7370bfc1291bcf0
Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng,v8_linux_arm64_sim_heap_sandbox_dbg_ng
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Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Samuel Groß <saelo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79384}

Allow bytecodes processed by maglev to access the on-stack closure
register.

Bug: v8:7700
Change-Id: I757d0c1734ef478e5b9671ed87a4691101b4e29d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3506444
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79383}

when has_simple_parameters_ is false in DeclareArguments

- According to https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-functiondeclarationinstantiation
step 28, arguments var declaration in function should be binding to
arguments parameterBindings when has_simple_parameters_ is false.
- According to https://tc39.es/ecma262/multipage/ordinary-and-exotic-objects-behaviours.html#sec-funct>
step 18, we should set arguments_ is nullptr if "arguments" is an element of lexicalNames
only when has_simple_parameters is true.

Bug: v8:12671
Change-Id: I542f80e2c8653ae05b65feb0036e4ade2e653a53
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3499251Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79382}

This decreases the snapshot size (we don't need to write the ID for the
string) and speeds up deserialization.

Bug: v8:11525
Change-Id: I8f48d2344a7fd895c746e6a3d26f6dbbdd11a062
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3494539Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79381}

Currently ClobberDoubleRegisters is implemented in C++ and is
not guaranteed to clobber all registers. Rewritten in assembly
to clobber all double registers

Bug: v8:11798
Change-Id: I11c09bd247c929d251e6e509ea5cc76b9981ea98
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3490715Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79380}

Bug: v8:12484
Change-Id: I0667c7464c0dd71338bc199a24a69248a7a0a525
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3497303Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Owners-Override: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Darius Mercadier <dmercadier@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79379}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/5ca27a8..cd24f73

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

Change-Id: I26062521bebe25e83a9f815a61d911a98dedae6b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3504700
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
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xorl + setcc is more efficient than setcc + movzxbl and encodes one byte
shorter.

Change-Id: Ib6679ce9ab0ac0d34701daba5c3d4d8bb57a8fc6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3492946Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Hao A Xu <hao.a.xu@intel.com>
Cr-Commit-Position: refs/heads/main@{#79377}

issue: https://github.com/riscv-collab/v8/issues/520

Change-Id: I7fe298ad16a2f599805929db0f084a81c4eb7f7a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3503170
Auto-Submit: Yahan Lu <yahan@iscas.ac.cn>
Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Reviewed-by: Yahan Lu <yahan@iscas.ac.cn>
Commit-Queue: Yahan Lu <yahan@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#79376}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/086de03..5ca27a8

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/d454c2e..34063a8

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

Change-Id: I948930606eba44b8bb4f46d98311981210367693
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3502545
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Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/d6d9d1b..086de03

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/4756e38..d454c2e

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/e210b54..9ce8be3

Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/aa5ea60..aa6909a

Rolling v8/tools/luci-go: git_revision:a1616e207f0d9c24beefe848ee899b7a73efcb70..git_revision:cb424e70e75136736a86359ef070aa96425fe7a3

Rolling v8/tools/luci-go: git_revision:a1616e207f0d9c24beefe848ee899b7a73efcb70..git_revision:cb424e70e75136736a86359ef070aa96425fe7a3

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

Change-Id: I3bd91e2d184c361878bf886987cff3cf4a79bff6
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Add NumberFormat.prototype.formatRange(ToParts)?

https://github.com/tc39/proposal-intl-numberformat-v3

https://chromestatus.com/guide/edit/5707621009981440

Design Doc: https://docs.google.com/document/d/19jAogPBb6W4Samt8NWGZKu47iv0_KoQhBvLgQH3xvr8/edit


Bug: v8:10776
Change-Id: I9bb163c0c15ccac9d3a2d5e55ad38aa5c06bbaa6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3429464Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79373}

HeapNumbers that are in the shared heap were incorrectly considered
!IsShared().

TBR=jkummerow@chromium.org

Bug: v8:12547
Change-Id: Ie4b9575445d841a7045c947ff4439bf53a22869d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3504085
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Auto-Submit: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79372}

Start allowing heavier testing of maglev by allowing graph building to
bail out if passed an unsupported bytecode.

Bug: v8:7700
Change-Id: I7e3d2c5a8896d4f4e0da5ef444c95a286f9ac117
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3500417Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79371}

Because I don't get much out of "Object() != Object()"

Change-Id: I5a765b9cb0a272d30edcd834ec7b60d2fd03190b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3497352Reviewed-by: Camillo Bruni <cbruni@chromium.org>
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The newly optimised CopyDataPropertiesWithExcludedProperties acceses the
excluded properties directly on the stack, to avoid pushing them twice.
This meant that we had to pass a stack pointer into the runtime, which
we couldn't do directly because all arguments to runtime functions
should be tagged.

We tried to work around this by passing the stack pointer in a Foreign,
but this violated the V8 sandbox. Fortunately, the stack pointer is
aligned, so it looks like a Smi to the GC. So, we can pass it directly
on the stack as a runtime argument but doing a bit of bitcasting.

Cq-Include-Trybots: luci.v8.try:v8_linux64_heap_sandbox_dbg_ng
Bug: v8:11614
Change-Id: I87c4a34a15ae863277142aa29f48b1dd546014e0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3497745
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79369}

The heap snapshot generator is meant to apply descriptive names to Code
objects, but was using CodeDataContainer instead. Attempting to set the
name of the CodeDataContainer instances did nothing because they already
had the name "system / CodeDataContainer".

Bug: v8:11880
Change-Id: If7bd115bde36386d283d319c1ee28df565a39569
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3498849Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#79368}

Change-Id: I05e7d0776eaa4722c5a5b9820ee6b34d9319d2ce
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3497816Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79367}

Previously, the inspector would resurrect `v8::internal::Script` objects
when the weak callback is invoked, in order to access their fields and
read out the source (either a String in case of JavaScript or the module
bytes in case of WebAssembly). With https://crrev.com/c/3494242 we no
longer need to access the `v8::internal::Script` now, and so we can stop
relying on the `WeakCallbackType::kFinalizer` logic.

Bug: chromium:1295659
Fixed: chromium:1302195
Doc: https://bit.ly/v8-inspector-script-caching
Change-Id: I6a444bfcdf6cd23b30043f7386d6c18b7afec659
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3497324Reviewed-by: Simon Zünd <szuend@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79366}

Bug: v8:7700
Change-Id: I1ebb7b0404526e45622b488248a244d75d93a4d7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3501892
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
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This fixes bazel builds on Apple Silicon hosts

https://github.com/envoyproxy/envoy/issues/19916

Change-Id: I9651538bec8a98e4b350c5f8ee1a40ed91dff461
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3502848Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79364}

This introduces a new (inspector-only) `v8::debug::ScriptSource`,
which represents the source for a given `v8::debug::Script` (in
case of JavaScript it's a `v8::internal::String` while in case of
WebAssembly it's a `Managed<v8::internal::wasm::NativeModule>`).
Every `v8_inspector::V8DebuggerScript` now holds on weakly to the
`v8::debug::Script` and strongly to its `ScriptSource`, making it
possible to access the source even after the `Script` dies.

This is preliminary work to allow for the removal of the special
GC feature that a `WeakCallbackType::kFinalizer` callback can
resurrect the object (this change is split into a separate follow
up CL https://crrev.com/c/3497324).

Bug: chromium:1295659, chromium:1302195
Doc: https://bit.ly/v8-inspector-script-caching
Change-Id: I503d0d9283e2da392023f06f79b8ff35953e7935
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3494242
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79363}

This proposal adds i32 and i64 addition, subtraction, and multiplication
to the list of constant expressions.
See https://github.com/WebAssembly/extended-const.

Bug: v8:12089
Change-Id: I23a27a54a15fd37ee1d553992ab3b355eb9d317c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3497665Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79362}

In x64, the result of WordAnd with a positive integer constant is known
to be sign(zero)-extended. Comparing this result with another positive
integer constant can have narrowed op according to the value of the
constants.

This CL do this narrow for WordAnd. It also makes the narrow in Word
comparison to deal with X64Cmp and X64Test.

Bug: v8:12650
Change-Id: I77f4ada9a9f94d78b3a78911e279a647c561cce4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3462081Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Hao A Xu <hao.a.xu@intel.com>
Cr-Commit-Position: refs/heads/main@{#79361}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/e6ef2e3..d6d9d1b

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/1ec1fe1..4756e38

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/b65bfd5..e210b54

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/3a67a50..1f05f8e

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

Change-Id: Ie85d4ba287a44ee06ad2e9075d3fd97937401778
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3502850
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@{#79360}

Bug: v8:11544
Change-Id: I5dda2845618cc7c709fb9ddac337472e112407e4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3374281Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79359}

Add unimplementation macro for String case till the resolution of
https://github.com/tc39/proposal-intl-numberformat-v3/pull/82

Bug: v8:10776
Change-Id: Ic59d532bb78a9f56a0c121e71e0f9e585bb8c9d7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3497619Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79358}