Rolling v8/third_party/google_benchmark/src: https://chromium.googlesource.com/external/github.com/google/benchmark/+log/6d50251..108ca84

fix typo in comment (Dominic Hamon)
https://chromium.googlesource.com/external/github.com/google/benchmark/+/108ca84

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

Change-Id: I091bbd6d668a0ebd949432c5307276b3b7fc8c68
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3694933
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
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Performing the "swap with TypeCast" input optimization causes inconsistent
types for unreachable AssertNonNull instructions (that should inherit that
TypeCast's <bot> type).

Fixed: v8:12945
Change-Id: Ie51cd6531267a2828c6aac92948edda5c2a5db37
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3693708
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80989}

This reverts commit 5147e9c8.

Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Android%20Arm64%20-%20builder/45354/overview

Original change's description:
> Update V8 DEPS.
>
> Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/a568526..5ef7447
>
> Rolling v8/buildtools/linux64: git_revision:37baefb026b199605affa7bcb24810d1724ce373..git_revision:2f71761a90bdccdb5f4a99e8b231c96aba0967d9
>
> Rolling v8/buildtools/third_party/libc++abi/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxxabi/+log/c30c515..11395e5
>
> Rolling v8/buildtools/third_party/libunwind/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind/+log/86ab9dd..1644d07
>
> Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/3a2e446..45853b3
>
> Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/13c50b4..6754c49
>
> Rolling v8/third_party/fuchsia-sdk/sdk: version:8.20220531.3.1..version:8.20220607.2.1
>
> Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/4e79fda..a455f33
>
> R=​v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com
>
> Change-Id: I388c75fffc589bcc2702f9d36fec250a6d6d37c3
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3691131
> 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@{#80987}

Change-Id: I600e78aa222922ceffde2de1d714823645728b90
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3691852
Owners-Override: Manos Koukoutos <manoskouk@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80988}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/a568526..5ef7447

Rolling v8/buildtools/linux64: git_revision:37baefb026b199605affa7bcb24810d1724ce373..git_revision:2f71761a90bdccdb5f4a99e8b231c96aba0967d9

Rolling v8/buildtools/third_party/libc++abi/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxxabi/+log/c30c515..11395e5

Rolling v8/buildtools/third_party/libunwind/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind/+log/86ab9dd..1644d07

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/3a2e446..45853b3

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/13c50b4..6754c49

Rolling v8/third_party/fuchsia-sdk/sdk: version:8.20220531.3.1..version:8.20220607.2.1

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/4e79fda..a455f33

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

Change-Id: I388c75fffc589bcc2702f9d36fec250a6d6d37c3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3691131
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
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Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.plainyearmonth.compare
https://tc39.es/proposal-temporal/#sec-temporal.plainmonthday.compare
https://tc39.es/proposal-temporal/#sec-temporal.plainmonthday.prototype.equals

Bug: v8:11544
Change-Id: Ia03946e0e183ec9b0a8130515607c29a32a8b265
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3673418Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80986}

Implement AOs: RoundISODateTime
Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.plaindatetime.prototype.tostring
https://tc39.es/proposal-temporal/#sec-temporal-roundisodatetime

Bug: v8:11544
Change-Id: Ib0318be8047bb01e593a43cef4405caa5979d1af
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3687568Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80985}

Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.zoneddatetime.prototype.withplaindate

Bug: v8:11544
Change-Id: I8d7099906c04eae0e29ff0dabd48b736a07305d6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3692432
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80984}

Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.instant.prototype.add
https://tc39.es/proposal-temporal/#sec-temporal.instant.prototype.subtract

Also fix bug in IsValidEpochNanoseconds

Bug: v8:11544
Change-Id: Ied605c9de4ee38a18e2356a89e3a69d534a004d1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3617394
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80983}

Bug: v8:12764
Change-Id: I4f4d2775045878576227463f27ded769c3cef362
No-try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3691797
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@{#80982}

Bug: v8:12284
Change-Id: I9d4a5d7420c6650039f84b3c8fc7974e9e617ce3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3687566Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80981}

GCC doesn't accept 'lr' in inline assembly, specifically for the
list of clobbered registers. Change all uses to 'x30', for
consistency.

Bug: v8:10026
Change-Id: I5654fee4ca398dfdd99c34d09fc5294d169a9bd8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3693701Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Georgia Kouveli <georgia.kouveli@arm.com>
Cr-Commit-Position: refs/heads/main@{#80980}

Port e50d19cb

Original Commit Message:

    https://crrev.com/c/3471854 already disabled the RecordWrite builtin
    specifically for incremental marking. Since this didn't regress performance as expected, we can now remove those versions of the
    builtin.

    This will simplify the barrier implementation a bit, but is also
    required for the shared heap write barrier. Unlike the generational barrier, the shared heap barrier can't be elided for map values.

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

Change-Id: Ic1a31fad3faaafeab077590d71d6d998eaddcc6a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3691128Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Reviewed-by: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#80979}

This is required for a V8 DEPS roll:
https://chromium-review.googlesource.com/c/v8/v8/+/3691119.

Change-Id: I65371eb7fd23b9dd13802e77bd3c14afdd592641
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3688407Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80978}

Mostly in comments, again, not much to be said...

Bug: v8:12425
Change-Id: I6d6c70b4e4dba70ec6ac7574caecc77b65316050
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3693698Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Nikolaos Papaspyrou <nikolaos@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80977}

I noticed in a recent build that C++ files from cctest didn't start
compiling until after several slow non-parallel tasks such as running
mksnapshot and linking v8_for_testing. I don't see any reason that
cctest sources should wait for those tasks, so in this change I propose
adjusting the build dependencies for more parallelism.

Change-Id: I2472117c8555ac397fa1232954c8b699d6429d38
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3690170Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#80976}

When the sandbox cannot be initialized, it's either because there is not
enough virtual address space available, or because there is not enough
memory for the kernel data structures needed for the reservation (this
typically happens on Windows 7/8 where reserving virtual memory is
expensive). Both cases should be reported as OOMs, not CHECK failures.

Bug: chromium:1325302
Change-Id: I17bde9bcd4fbd6e3d54075b8891287c8fb01c1d7
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/+/3688406
Auto-Submit: Samuel Groß <saelo@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80975}

Port commit e50d19cb

Bug: v8:11708
Change-Id: Ia9a8cb9d8cd9e768fc056bc5555959e0aaeb3694
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3692435Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Auto-Submit: Liu Yu <liuyu@loongson.cn>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/main@{#80974}

Most notable:
- Suggest '--experimental-wasm-gc' for wasm-gc type definitions.
- Remove unused/useless fields from WasmTypeInfo.
- Put more wasm Turbofan optimizations behind '--wasm-opt'.

Change-Id: Ia298a58c2cf03964472a1445460d12ae72a5b04d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3688404Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80973}

Port: f149912f

Drive-by: Defined EnqueueFunction under baseline-batch-compiler
for platforms without spakrplug support, currently getting
a link error when making a debug build.

Bug: v8:12887

Change-Id: I4fc8584ef09ad024280f7e40554a5e73a207b64f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3688474Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80972}

Use doubleword load/store to swap values in FPSackSlots instead of word
load/store.
Besides, fix error in gap resolver.

Change-Id: I57e9d577a6001bc970ce6b56b6f890eb3e4d196c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3688325
Auto-Submit: Liu Yu <liuyu@loongson.cn>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/main@{#80971}

Drive-by: Make the code less verbose my returning the input node from
SetInt32Type.

Bug: v8:7748, chromium:1332385
Change-Id: I2fde9c2168af1365e305e7e8d894b03487e8a8d9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3687692Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80970}

It is now considered best effort, that in-place internalizable strings
are promoted into the shared old space instead of non-shared old space.
This was previously an invariant, but it doesn't hold if the whole page
containing the shared string is promoted instead of individual objects.
In addition with conservative stack scanning individual objects won't be
moved.

Bug: v8:12007
Change-Id: I7474738b02b0c18080cb2e82268a02bf9b480c40
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3688512Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Patrick Thier <pthier@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80969}

This build flag was removed in https://crrev.com/c/3314864.

Bug: v8:12470
Change-Id: I365a1914ff096d07ae41d8bf35150615a9c91736
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3676853
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80968}

In typed-optimization, Turbofan optimized NumberFloor(NumberDivide(...))
patterns where both inputs are known to be of Unsigned32 type, but the
replacement couldn't be typed consistently. This CL introduces a new
operator Unsigned32Divide, which has the same semantics, but can be
typed consistently and thus allows the simplified lowering verifier to
validate the graph correctly.

Bug: v8:12619
Change-Id: Iad77154d3d840c94edfd3ab91ffa37c840da0bc9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3644790
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80967}

https://crrev.com/c/3471854 already disabled the RecordWrite builtin
specifically for incremental marking. Since this didn't regress performance as expected, we can now remove those versions of the
builtin.

This will simplify the barrier implementation a bit, but is also
required for the shared heap write barrier. Unlike the generational barrier, the shared heap barrier can't be elided for map values.

Bug: v8:11708
Change-Id: I44bc6ee79006a5be8c1b593dee7fc30c3b9cfa85
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3683341Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80966}

Bug: v8:12797
Change-Id: Ide50026c7dc35197876e66cc53a7936acb765aa9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3687735
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80965}

Mirrors a Chromium change @
https://chromium-review.googlesource.com/c/chromium/src/+/3680123
and a v8 change @
https://chromium-review.googlesource.com/c/v8/v8/+/3687370/

Bug: chromium:1330114
Change-Id: I61b1e34d54a496dda25936efbcd339fa35e64fb1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3686476
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Auto-Submit: Gabriel Charette <gab@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80964}

Mirrors a Chromium change @
https://chromium-review.googlesource.com/c/chromium/src/+/3680123

Bug: chromium:1330114
Change-Id: I6fdfd93264e669965245f5ba696fb5b605e417fe
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3687370
Auto-Submit: Gabriel Charette <gab@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80963}

Currently the Isolate is gotten off of the object that the operation is
being performed on. Shared objects return the shared Isolate, which is
incorrect as it shouldn't be used to run JS, nor does it have
HandleScopes open. Plumb the executing Isolate through.

Bug: v8:12547
Change-Id: I2f500cbb707b3ce2e8a78203df9920374c190d28
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3691967
Commit-Queue: Luis Fernando Pardo Sixtos <lpardosixtos@microsoft.com>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80962}

Not all V8 build configs support JS shared memory features. Trying to
create a new shared Isolate on such a config DCHECKs at runtime. Make
the shared Isolate test fixture conditionally initialize the shared
Isolate. Users must explicitly check for support.

Bug: v8:12547
Change-Id: I3df1ce7eb5ae9a3c136f88ea8f44c650cc0408ab
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3687565
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80961}

Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.zoneddatetime.prototype.add
https://tc39.es/proposal-temporal/#sec-temporal.zoneddatetime.prototype.subtract

Bug: v8:11544
Change-Id: If4e1f71a05a0d1e88829bf219d4f90bd7a343877
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3617392Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80960}

Also implement AO: CompareEpochNanoseconds
Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.instant.compare
https://tc39.es/proposal-temporal/#sec-temporal.instant.prototype.equals

Bug: v8:11544
Change-Id: I953a890250ff0bf29cd24e4638bf17ceb5f9bb2f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3382057
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80959}

Also add AOs: AddISODate, RegulateISODate

Change the return type of GetISO8601Calendar from MaybeHandle to Handle since it will never throw exception.

Spec Text:
https://tc39.es/proposal-temporal/#sec-get-temporal.zoneddatetime.prototype.hoursinday
https://tc39.es/proposal-temporal/#sec-temporal-addisodate
https://tc39.es/proposal-temporal/#sec-temporal-regulateisodate

Bug: v8:11544
Change-Id: Id0b59e2818a095ee9390de2302501888fd93ca2b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3564937
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80958}

Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.plaintime.prototype.add
https://tc39.es/proposal-temporal/#sec-temporal.plaintime.prototype.subtract

Bug: v8:11544
Change-Id: I0d684eec9eebfd26eceb6bb4c360025a33bd4c3c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3617390Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80957}

Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.plaindatetime.prototype.add
https://tc39.es/proposal-temporal/#sec-temporal.plaindatetime.prototype.subtract

Bug: v8:11544
Change-Id: Ib76b090a62a932931ab48cb5814ce1f1050fae10
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3617391Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80956}

Spec Text:
https://tc39.es/proposal-temporal/#sec-temporal.plaindate.prototype.add
https://tc39.es/proposal-temporal/#sec-temporal.plaindate.prototype.subtract

Bug: v8:11544
Change-Id: Iacb4b9ba7d481005d14e2e4d42e2422133f5ab42
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3617389
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80955}

Related to commit 2b6cbda0

Bug: v8:5210, chromium:1269989, chromium:1313647
Change-Id: I0046bdb3fe76a3eaf45e773b1fab87b65476cc1b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3690457
Auto-Submit: Liu Yu <liuyu@loongson.cn>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/main@{#80954}

When a 8x16 shuffle matches a packed byte to dword zero extension,
1. input1 is S128Zero after canonicalization,
2. the indices {0,4,8,16} are consecutive value in the range [0-15] and
other indices are in the range [16-31],
the shuffle can be matched to packed byte to dword zero extend. These
shuffles are commonly used in image processing.

Change-Id: I14d1e35401dbc5ecd91f67c46ea9762628835d01
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3547667Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Fanchen Kong <fanchen.kong@intel.com>
Cr-Commit-Position: refs/heads/main@{#80953}

Port commit a52b44f0

Bug: v8:12908
Change-Id: Ifcafab2f29d416f39fa48082e86c3c3b72508bad
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3690453
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@{#80952}

Port commit a52b44f0

Original Commit Message:

    Prototype the instruction on the interpreter, and Arm64. Details of
    instruction lowerings on all relevant architectures can be found at:
    https://github.com/WebAssembly/relaxed-simd/issues/52

Change-Id: Ie0415f5c6a543517aa488a36ea5e575c6612ec0e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3687424
Auto-Submit: Yahan Lu <yahan@iscas.ac.cn>
Commit-Queue: ji qiu <qiuji@iscas.ac.cn>
Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#80951}