https://chromium.googlesource.com/external/github.com/tc39/test262/+log/d7c0a207..33a5433d

Bug: v8:7834
Change-Id: I2c10e4470bf02de864666fa7410ce472a42b8359
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585357Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80006}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/d1e4a47..cdced0c

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

Change-Id: I520013988862e502330041e09b1b811dcd78e581
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3588778
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Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/9eb2c63..d1e4a47

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Change-Id: Ib78105e60f3b34cd19c8b0382a0ab19390f4c766
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Access of forwarded map isn't allowed without synchronization. The fix
is to not invoke IsMap() on the forwarded map. If we would want that we
would need a release-store when setting the forwarding pointer on an
evacuated object.

Bug: chromium:1315622, v8:12578
Change-Id: I2f03c810c39875e565bc769c57452af75849044f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585567Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80003}

Rolling v8/third_party/icu: https://chromium.googlesource.com/chromium/deps/icu/+log/1fd0dbe..d2858cb

Update ICU to ICU 71-1 (Frank Tang)
https://chromium.googlesource.com/chromium/deps/icu/+/d2858cb

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Change-Id: I4ac0a12be8eb7e72f5643f805de65ab87d742f71
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3588775
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Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/9bc850a..9eb2c63

Rolling v8/buildtools/linux64: git_revision:fd9f2036f26d83f9fcfe93042fb952e5a7fe2167..git_revision:1cdd270be9803dbfcdd0343f6104ad4dc30c38ce

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/3cf2f4f..b3baa6a

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/4b2e0bd..ab2e7f8

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/f3fcc8e..7d4922a

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Change-Id: I3a28ae715d08c5ad4d22ffff4f1703928502669d
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Add DateDurationRecord, TimeDurationRecord
and use them in the AO args.
Also change arg and return to struct to avoid passing in pointer for output.

Bug: v8:11544
Change-Id: I34c497ffd341c5cc4693255f51f3dae6d29cfd72
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3575464Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80000}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/67d9897..9bc850a

Rolling v8/buildtools/linux64: git_revision:0cbe341c1a28037ee32d21b589030a7df0b9fdab..git_revision:fd9f2036f26d83f9fcfe93042fb952e5a7fe2167

Rolling v8/buildtools/third_party/libunwind/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind/+log/bbcbce9..1acfbbb

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/90316ac..3cf2f4f

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/3c6f0eb..4b2e0bd

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/9199dc2..f3fcc8e

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

Change-Id: I22240db815caf87394b47cf9d360288588cfae2e
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Change-Id: I7ff74effe5c1775285e3d3b09c531317adefc4e0
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... on non-iterable object. In CallPrinter::VisitAssignment,
when found_ is true, we could print node->target to show the
error node value, avoid printing twice for the assignment.

Bug: v8:10854
Change-Id: I5f295f46b5639b715f762935e675598d1d780f98
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3586763Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: 王澳 <wangao.james@bytedance.com>
Cr-Commit-Position: refs/heads/main@{#79997}

Port f8fddd6b

Original Commit Message:

    This is a reland of commit a4216b7b

    Original change's description:
    > [osr] Extract extended OSR checks to BaselineOnStackReplacement builtin
    >
    > .. to reduce Sparkplug code size.
    >
    > Bug: v8:12161
    > Change-Id: I4029a75dfa37f716c285ce27153c077a0a82a341
    > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3576119
    > Reviewed-by: Leszek Swirski <leszeks@chromium.org>
    > Commit-Queue: Jakob Linke <jgruber@chromium.org>
    > Cr-Commit-Position: refs/heads/main@{#79962}

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

Change-Id: I19a1d0ae69b0576d30d67ad6ed7266b240a51409
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585855Reviewed-by: Joran Siu <joransiu@ca.ibm.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79996}

- Fix processing lines that are longer than 1 chunk
- Add and use --code-font-size var
- Make minimum panel width 600px
- Track _lineNumber better Processor for easier debugging

Bug: v8:10644
Change-Id: I656e2ac5f0e9ba25ffa4b8c3ecc4b744144a691d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585568Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79995}

... as a single bottleneck that encapsulates the semantics and
implementation of fast per-thread W^X permission switching supported
by Apple Silicon (arm64 M1).
On other architectures this class is a no-op.

Bug: v8:12797
Change-Id: Ica842ff9f843e20b7f61fd7e80591e7a1fd29771
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3586986Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79994}

This makes usages less verbose, and is consistent with other existing
enums.
Also, we can use brace initialization to avoid boilerplate when creating
a DynamicTiering value.

Drive-by: Rename a 'kIncludeLiftoff' variable to 'include_liftoff'
because it is not a static constant.

R=jkummerow@chromium.org

Bug: v8:12281
Change-Id: Ie45fdb550241a8b9ca4e2a31b7c27500939fa247
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585566Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79993}

This improves the experience over an SSH connection.

No-Try: true
Change-Id: Id6971f2ad2c75c85f91bea71f7215ce7a948ee71
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3586987
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
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Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79992}

- Start moving profiler scripts to tools/profiling
- Add linux-perf-d8.py wrapper script that runs `perf record` and
  `perf inject`
- Improve waiting for the d8/chrome process and allow for early
  termination if --timeout is provided
- Allow fractional seconds for --timeout
- Delete run-perf.sh and provide equivalent functionality in
  linux-perf-d8.py

Change-Id: Iac1d6cf895aa7159a9bbb387aca7632df27a0ca3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585951Reviewed-by: Leszek Swirski <leszeks@chromium.org>
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- Rename CodeEventDispatcher to LogEventDispatcher
- Use std::vector instead of std::unordered_set, dispatching speed is
  more important than addition/removal of listeners
- Changing the LogEventDispatcher code to be more code-search friendly
- Use a raw pointer for the LogEventDispatcher instance on the isolate
  it's a single-owned entity

Bug: v8:12795
Change-Id: I139f05431519c18cba33d1506467be918f52658c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3582125Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Jakob Linke <jgruber@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79990}

This allows to turn two field in the LiftoffAssembler into constants.

R=thibaudm@chromium.org

Bug: v8:12425
Change-Id: Ie39ca73d6bb704b42bd449eed984f426e69deeb5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585956Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79989}

No-Try: true
Bug: v8:11428
Change-Id: Ia06f5a99f851325103ad1860bf44a7313ea541f7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3581723Reviewed-by: Almothana Athamneh <almuthanna@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79988}

We don't actually ever need the MaglevCompiler instance.

Bug: v8:7700
Change-Id: I876353310cf34971b72b08d2113d87caaa255e13
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585957
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Change-Id: Idb40d6a544cebbdd127eb3c8d71f11adf6ac6a97
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3586227Reviewed-by: Lutz Vahl <vahl@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Lutz Vahl <vahl@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79986}

Change-Id: I0dbb0e800908d02a783393c3e329d306316b03c7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585949
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Bug: chromium:1315901
Change-Id: I99ed1562356676f54e69a832c8e862c1cf74fb07
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585948Reviewed-by: Samuel Groß <saelo@chromium.org>
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Bug: v8:12161
Change-Id: Idb393836d787f348462c263c7f61e1a8b02b6729
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..., this.x(), this.?x and this?.x(). For common
case like these, it's not necessary to store the
source position for the ThisExpression. And we
could use the cached kNoSourcePosition ThisExpression
for these.

Bug: v8:10914
Change-Id: I02e2bc1633f6da036535d7a76bdabeac0d22f4d9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585490Reviewed-by: Leszek Swirski <leszeks@chromium.org>
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Cr-Commit-Position: refs/heads/main@{#79982}

.. instead of through urgency. Whenever we target a specific JumpLoop,
the install target should be used instead of the generic urgency
mechanism.

Bug: v8:12161
Change-Id: I2e5cb604ce237bcc788dfc4288150881510bf6af
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This is a reland of commit a4216b7b

Original change's description:
> [osr] Extract extended OSR checks to BaselineOnStackReplacement builtin
>
> .. to reduce Sparkplug code size.
>
> Bug: v8:12161
> Change-Id: I4029a75dfa37f716c285ce27153c077a0a82a341
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3576119
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Jakob Linke <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#79962}

Bug: v8:12161
Change-Id: I69afd0832d7ca447b5481651ef47ebaa8d023ded
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585943
Auto-Submit: Jakob Linke <jgruber@chromium.org>
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Commit-Queue: Leszek Swirski <leszeks@chromium.org>
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Change-Id: I95a5768af19174275e2828136ce3ff772886e84f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585499Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
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 Update the size to kTierupBudgetOffset.

Change-Id: Ibe241211ef67148fae3a4a9eed271f9293ca4801
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Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/b37c340..67d9897

Rolling v8/buildtools/linux64: git_revision:ae110f8b525009255ba1f9ae96982176d3bfad3d..git_revision:0cbe341c1a28037ee32d21b589030a7df0b9fdab

Rolling v8/buildtools/third_party/libunwind/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind/+log/c39fea8..bbcbce9

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/3a1ae18..90316ac

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/3b97fa8..3c6f0eb

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/b5e2f7c..9199dc2

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

Change-Id: I0b4e855b5c28652f425db99a109bfcc26ad9dca3
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CL also adds TODO items to implement this functionality on
disassembler and the simulator.

The R bit which enables PC-relative capabilities when set is
not being used during codegen at the moment.

Change-Id: I0927d9be37a50beecf9b6a052e378dca7604513b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3584535Reviewed-by: Junliang Yan <junyan@redhat.com>
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Cr-Commit-Position: refs/heads/main@{#79976}

With the switch to primitive ids make sure no profiler can be returned
with the same id.

Bug: chromium:1297283
Change-Id: I9cf944e9a472ea45679feb0f30137dba95a32ca6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3582786
Auto-Submit: Corentin Pescheloche <cpescheloche@fb.com>
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Cr-Commit-Position: refs/heads/main@{#79975}

Bug: chromium:1029379
Change-Id: I34e988c0e14441afe821a35505c4ce3f1eee8fc4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3584118Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79974}

CacheInitialJSArrayMaps was called in the middle of
JSFunction::SetPrototype even though this only happens during
bootstrapping given that Array.prototype os non-configurable and
non-writable.

Changes:
- Rename CacheInitialArrayMaps to InitializeJSArrayMaps
- Add more explicit checks in InitializeJSArrayMaps to link back
  to the Context indices for better code searching


Change-Id: Iad6d20e3d67d715bfd6429037c75ac35ab7f399f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3571889Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79973}

Change-Id: I205f055af95bd92a84f0a2bc5bbe4d2633e4a8cc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3584530Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79972}

This is a reland of commit 38767476

Changes since revert: None, original failure was caused by another CL

Original change's description:
> [heap] Skip weak heap objects when sharedness doesn't match
>
> During marking, shared objects should not be marked when not
> marking the shared heap (i.e. when not doing a shared GC).
> Doing so is unsafe, as marking can race with sweeper threads
> sweeping the shared heap. This CL adds the missing check on
> weak object marking.
>
> Bug: v8:12687
> Change-Id: I1e0b8ba6b09bbcf665e5ff0f6242ed88f543c1fa
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3583610
> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
> Commit-Queue: Shu-yu Guo <syg@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#79964}

Bug: v8:12687
Change-Id: Ia24ff5daa4d37daf73391c0e577b086611c5e496
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3584600
Owners-Override: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79971}

This CL adds prefixed load scalar and floating point
instructions to the assembler and uses it during code generation
if the processor supports it. They have also been added to the disassembler and the simulator.

Drive-by: emit_prefix is now making sure a trampoline doesn't
get emitted in between prefix and suffix. Assembler needs to
block it using BlockTrampolinePoolScope.
Drive-by: more CHECKs are added to the assembler to make sure
immediate values have the correct length.

Change-Id: Ic5e38926c65364bc97aba0b7638dde5f365ec706
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3582479Reviewed-by: Junliang Yan <junyan@redhat.com>
Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79970}

drive-by: Add code comment macros
Change-Id: I1bded0f0e49f9e590cb7a8a5d86e26e8d9d5eea6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585530Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79969}

Bug: chromium:1315901
Change-Id: Ic44bfcae32aba202ba25c5f59fe579214a444584
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3584117Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79968}

Change-Id: Ic65f0cccaba6cea2d441540b57689e2c68af3125
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3585526Reviewed-by: Milad Farazmand <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#79967}