Certain collators and subject strings may take this new fast
path without calling into the (slow) ICU comparison functions.

This CL can be roughly split into three topics:
1. The fast path check, precomputed and implemented as a whitelist
   on the current locale string.
2. The actual fast path, which checks subject string eligibility
   and performs L1 and L3 collation weight comparisons all in one pass.
3. Resuming from an aborted fast-path into the generic path.

A longer overview is available at
https://docs.google.com/document/d/1oyDwjYn2JyHsx2YnJJKhjX0WMNQXb8ao86-DRzqiYNg/edit?usp=sharing

JetStream2/cdjs scores improve by roughly 40%.

Bug: v8:12196
Change-Id: I5e1bbd731a36c361af9667f9104d6fa15c42e117
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3149463Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77284}

This is a reland of 2ca7641f

The tools/clang change was reverted to make sure we don't experience timeouts like
https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20CFI/8083/overview

Bug: v8:12293

Original change's description:
> Update V8 DEPS.
>
> Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/ebad853..c40c33e
>
> Rolling v8/buildtools/third_party/libc++abi/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxxabi/+log/9959b06..fdbb919
>
> Rolling v8/buildtools/third_party/libunwind/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind/+log/a002c72..15999e7
>
> Rolling v8/third_party/aemu-linux-x64: FAd7QuRV-mCjbKgg2SO4BBlRCvGIsI672THjo3tEIZAC..ekZcu3VD0XVbtKxyJwVgI96y6Sr0eYcdLkgCt6ejF0gC
>
> Rolling v8/third_party/android_platform: https://chromium.googlesource.com/chromium/src/third_party/android_platform/+log/7a11b79..1a68ade
>
> Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/c0b9d25..ee3f2f4
>
> Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/0e2fb33..281edf7
>
> Rolling v8/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest/+log/3b49be0..075810f
>
> Rolling v8/third_party/icu: https://chromium.googlesource.com/chromium/deps/icu/+log/3f44383..4df07a2
>
> Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/dfa96e8..bffc82b
>
> Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/c06edd1..8640ca8
>
> Rolling v8/tools/luci-go: git_revision:a373a19da0fbbbe81b2b684e3797260294393e40..git_revision:293cb303c8d63cc435a32b2fd1e834db15bfc069
>
> Rolling v8/tools/luci-go: git_revision:a373a19da0fbbbe81b2b684e3797260294393e40..git_revision:293cb303c8d63cc435a32b2fd1e834db15bfc069
>
> Rolling v8/tools/luci-go: git_revision:a373a19da0fbbbe81b2b684e3797260294393e40..git_revision:293cb303c8d63cc435a32b2fd1e834db15bfc069
>
> TBR=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com
>
> Change-Id: I99dbd70ee899e1d1c9fafcf72509f2f50b1ae8a5
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3210331
> Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
> Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
> Cr-Commit-Position: refs/heads/main@{#77275}

Change-Id: Ia209b986eea61444d768782f58d4ba9391934f3f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3211569Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77283}

R=clemensb@chromium.org

Bug: v8:12281
Change-Id: Ice1465c2656c0ffd95b6297039f40762a176ddb4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3211581Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77282}

Change-Id: I2ef2314deb2384dfdca06bd46f2d3640787c2011
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3211579
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Patrick Thier <pthier@chromium.org>
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77281}

R=hablich@chromium.org, vahl@chromium.org

Change-Id: I9b30abad9500a1d89dd42f43dfe3e54fb4aed23c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3211573Reviewed-by: Lutz Vahl <vahl@chromium.org>
Reviewed-by: Liviu Rau <liviurau@chromium.org>
Commit-Queue: Lutz Vahl <vahl@chromium.org>
Auto-Submit: Lutz Vahl <vahl@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77280}

So far the slot is set to 0; in an upcoming CL it will be
used for an actual feedback vector.

Bug: v8:7748
Change-Id: I79f7502757d2cd8b07ced7105bf7532f5bc9b4f0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3205898
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77279}

In addition, trigger the observer only every ~256KiB to avoid
excessive incremental marking steps on fragemented heaps that have to
set up LABs repeatedly.

Bug: v8:12285
Change-Id: Id3d85d2c3f96d9d914c731f998df827898e1863d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3208810
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77278}

This reverts commit 2ca7641f.

Reason for revert: https://crbug.com/v8/12293
https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20CFI/8083/overview

Original change's description:
> Update V8 DEPS.
>
> Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/ebad853..c40c33e
>
> Rolling v8/buildtools/third_party/libc++abi/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxxabi/+log/9959b06..fdbb919
>
> Rolling v8/buildtools/third_party/libunwind/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind/+log/a002c72..15999e7
>
> Rolling v8/third_party/aemu-linux-x64: FAd7QuRV-mCjbKgg2SO4BBlRCvGIsI672THjo3tEIZAC..ekZcu3VD0XVbtKxyJwVgI96y6Sr0eYcdLkgCt6ejF0gC
>
> Rolling v8/third_party/android_platform: https://chromium.googlesource.com/chromium/src/third_party/android_platform/+log/7a11b79..1a68ade
>
> Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/c0b9d25..ee3f2f4
>
> Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/0e2fb33..281edf7
>
> Rolling v8/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest/+log/3b49be0..075810f
>
> Rolling v8/third_party/icu: https://chromium.googlesource.com/chromium/deps/icu/+log/3f44383..4df07a2
>
> Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/dfa96e8..bffc82b
>
> Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/c06edd1..8640ca8
>
> Rolling v8/tools/luci-go: git_revision:a373a19da0fbbbe81b2b684e3797260294393e40..git_revision:293cb303c8d63cc435a32b2fd1e834db15bfc069
>
> Rolling v8/tools/luci-go: git_revision:a373a19da0fbbbe81b2b684e3797260294393e40..git_revision:293cb303c8d63cc435a32b2fd1e834db15bfc069
>
> Rolling v8/tools/luci-go: git_revision:a373a19da0fbbbe81b2b684e3797260294393e40..git_revision:293cb303c8d63cc435a32b2fd1e834db15bfc069
>
> TBR=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com
>
> Change-Id: I99dbd70ee899e1d1c9fafcf72509f2f50b1ae8a5
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3210331
> Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
> Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
> Cr-Commit-Position: refs/heads/main@{#77275}

Bug: v8:12293
Change-Id: Id647e0dbd0abbfd5a2c119f74f9a5c6f6c6ca22e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3211566
Auto-Submit: Michael Achenbach <machenbach@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@{#77277}

The current implementation of the default ArrayBufferAllocator for the
virtual memory cage is highly inefficient as it simply forwards all
requests to the cage's PageAllocator. With this CL, this allocator is
now only used when the heap sandbox is enabled, in which case
ArrayBuffer backing stores must be located inside the cage. In all other
cases, in particular when only the virtual memory cage is enabled, the
backing stores can be located outside the cage and so the malloc-based
ArrayBufferAllocator is used.

This change only affects configurations in which V8's default
ArrayBufferAllocator is used.

Bug: chromium:1218005
Change-Id: I39cb5de3034ccd4b6975dc5193d8c7309857433b
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/+/3205018Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77276}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/ebad853..c40c33e

Rolling v8/buildtools/third_party/libc++abi/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxxabi/+log/9959b06..fdbb919

Rolling v8/buildtools/third_party/libunwind/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind/+log/a002c72..15999e7

Rolling v8/third_party/aemu-linux-x64: FAd7QuRV-mCjbKgg2SO4BBlRCvGIsI672THjo3tEIZAC..ekZcu3VD0XVbtKxyJwVgI96y6Sr0eYcdLkgCt6ejF0gC

Rolling v8/third_party/android_platform: https://chromium.googlesource.com/chromium/src/third_party/android_platform/+log/7a11b79..1a68ade

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/c0b9d25..ee3f2f4

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/0e2fb33..281edf7

Rolling v8/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest/+log/3b49be0..075810f

Rolling v8/third_party/icu: https://chromium.googlesource.com/chromium/deps/icu/+log/3f44383..4df07a2

Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/dfa96e8..bffc82b

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/c06edd1..8640ca8

Rolling v8/tools/luci-go: git_revision:a373a19da0fbbbe81b2b684e3797260294393e40..git_revision:293cb303c8d63cc435a32b2fd1e834db15bfc069

Rolling v8/tools/luci-go: git_revision:a373a19da0fbbbe81b2b684e3797260294393e40..git_revision:293cb303c8d63cc435a32b2fd1e834db15bfc069

Rolling v8/tools/luci-go: git_revision:a373a19da0fbbbe81b2b684e3797260294393e40..git_revision:293cb303c8d63cc435a32b2fd1e834db15bfc069

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

Change-Id: I99dbd70ee899e1d1c9fafcf72509f2f50b1ae8a5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3210331Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#77275}

Bug: v8:11990
Change-Id: I405f6bd73812e3cbd99c9b4230f08390648022b2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3210233
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Auto-Submit: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77274}

R=gdeepti@chromium.org

Bug: v8:12207
Change-Id: Ic0d408b3c7ecf69e45a794c6c96159df2bee80e4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3180376Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77273}

IsActive() is only supposed to be used in DCHECKs and supporting
this is going to get harder when introducing safepoints across multiple
isolates because there won't be this single counter anymore to check.
With AssertActive() we can just invoke AssertHold() on our mutex.

No functional changes.

Bug: v8:11708
Change-Id: Ic8d17738afdc90e92e6b54f615ec9757a826cc64
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3207903
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77272}

... to support creation of fillers in external code space.

Bug: v8:11880
Change-Id: I47b352b8b44733c529b6b0cb2b39cf676ce83923
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3208813
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77271}

https://chromium.googlesource.com/external/github.com/tc39/test262/+log/50dd431..61339fd2

Bug: v8:7834, v8:12288, v8:11544, v8:11989
Change-Id: Ie7c799f1c757554bd66619fe65433921d4419d52
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3206773Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77270}

Port 7c08633b

Original Commit Message:

    Replace 'virtual' by 'override' when overriding methods.
    This uncovered one method which was unnecessarily virtual:
    {RegExpMacroAssemblerARM64::CheckCharacters}.

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

Change-Id: I542aeae836b5b78284291ed39844a5c166ed06ad
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3208811Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#77269}

We are going to introduce safepoints across multiple isolates, with
this the name GlobalSafepoint might be misleading. Use IsolateSafepoint
as name to emphasise this class reaches a safepoint for a single
isolate only.

No functional changes.

Bug: v8:11708
Change-Id: I8254031dd0bc8e6dcf9f7353297803c37dba47ed
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3207901
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77268}

Marking the labels as unused is only needed when we abort code
generation. Otherwise the DCHECKs in the label destructors are useful to
catch bugs.

R=jgruber@chromium.org

Bug: v8:12244
Change-Id: I63198f98a7acd1f2528d31964c01bc6815ba99a9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3205899
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77267}

Change-Id: I49a4e2f05028279cd69d3909a9ca80f4c0acb1c5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3208649Reviewed-by: Milad Fa <mfarazma@redhat.com>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Vasili Skurydzin <vasili.skurydzin@ibm.com>
Cr-Commit-Position: refs/heads/main@{#77266}

Liftoff is temporarily disabled on PPC.
After https://crrev.com/c/3202593 the newly skipped tests
are failing with this error:
```
Check failed: tester.native_module()->GetCode(0)->is_liftoff()
```

Change-Id: I681a27930909fd6ac4e5087c2d03608b891a6066
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3208070Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#77265}

Bug: v8:7748
Change-Id: Ia277cf58a0eea431c4f19198914c1539fd03bc06
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3207898
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77264}

Bug: v8:7748
Change-Id: I5b0200560c5d77c1218142ca686c4e71c5106600
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3208027
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77263}

This reverts commit 8860a022.

Reason for revert: https://crbug.com/v8/12292

Original change's description:
> Update V8 DEPS.
>
> Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/ebad853..98d97fd
>
> Rolling v8/buildtools/third_party/libc++abi/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxxabi/+log/9959b06..fd29545
>
> Rolling v8/buildtools/third_party/libunwind/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind/+log/a002c72..15999e7
>
> Rolling v8/third_party/aemu-linux-x64: FAd7QuRV-mCjbKgg2SO4BBlRCvGIsI672THjo3tEIZAC..3M11fN4tUefKOZExDkJbUXnPiJICCo0TwPwoejHowg8C
>
> Rolling v8/third_party/android_platform: https://chromium.googlesource.com/chromium/src/third_party/android_platform/+log/7a11b79..1a68ade
>
> Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/c0b9d25..4b10835
>
> Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/0e2fb33..281edf7
>
> Rolling v8/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest/+log/3b49be0..075810f
>
> Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/dfa96e8..bffc82b
>
> Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/c06edd1..8640ca8
>
> Rolling v8/tools/luci-go: git_revision:a373a19da0fbbbe81b2b684e3797260294393e40..git_revision:ec7a06c4fcde59629839f8e89c52a08d647e75f4
>
> Rolling v8/tools/luci-go: git_revision:a373a19da0fbbbe81b2b684e3797260294393e40..git_revision:ec7a06c4fcde59629839f8e89c52a08d647e75f4
>
> Rolling v8/tools/luci-go: git_revision:a373a19da0fbbbe81b2b684e3797260294393e40..git_revision:ec7a06c4fcde59629839f8e89c52a08d647e75f4
>
> TBR=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com
>
> Change-Id: I007b32f3475eb71678e50dbf4efa15a88ec85ff6
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3206022
> Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
> Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
> Cr-Commit-Position: refs/heads/main@{#77247}

Bug: v8:12292
Change-Id: I637676d821c9687fc25ce5b42700a018364f9b7a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3207902
Auto-Submit: Michael Achenbach <machenbach@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@{#77262}

Use a url-like source position format for emited defnition
locations. Hopefully this will make links clickable on codesearch.

Change-Id: I343c6bc3cc4f159d5e3974d7ec5af4a578aaf03a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3207887Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77261}

This is a reland of 16df1dfa

No changes have been made to this reland as previous commit was reverted
due to a new test revealing an existing bug. This bug has now been fixed.

Original change's description:
> [arm64][wasm-simd] Use Cm(0) for integer comparison with 0
>
> Use an immediate zero operand for integer comparison when possible. This
> gives ~1% runtime performance improvement in some benchmarks on Neoverse
> N1.
>
> Change-Id: I727a8104f8e6ca3d122d6b5b8b3d38d7bdd76c47
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3158327
> Reviewed-by: Zhi An Ng <zhin@chromium.org>
> Commit-Queue: Martyn Capewell <martyn.capewell@arm.com>
> Cr-Commit-Position: refs/heads/main@{#76847}

Change-Id: I77d6923d79407a83becbd39970c6a3f62d3a304d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3178482Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Rodolph Perfetta <rodolph.perfetta@arm.com>
Cr-Commit-Position: refs/heads/main@{#77260}

This method had been marked as deprecated over a year ago and since
then only `0` on every invocation, and it's not used in Chromium
anymore.

Fixed: chromium:1246908
Change-Id: Id92a48ac6e42608b1bc023187436f57939466b2c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3208031
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77259}

_ReadWriteBarrier() is deprecated, and <atomic> has been available for
a while now.

Ports part of https://chromium-review.googlesource.com/c/chromium/src/+/2365092
to v8.

No behavior change.

Bug: chromium:1255114
Change-Id: I9954193a69dad9396a5e9e7450066382de2fb172
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3204827
Auto-Submit: Nico Weber <thakis@chromium.org>
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77258}

Rolling v8/third_party/jinja2: https://chromium.googlesource.com/chromium/src/third_party/jinja2/+log/6db8da1..ee69aa0

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

Change-Id: I60faeae98fc8341d3ddd493a93a3168a13307410
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3208069Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#77257}

WebAssembly dynamic tiering should be tested with an origin trial. For
the origin trial the feature flag value has to be loaded from blink.
This CL stores the value of the --wasm-dynamic-tiering flag in the
compilation state, from where it gets passed forward to all uses of the
flag. The flag value gets loaded from blink when a new NativeModule is
created.

R=clemensb@chromium.org

Bug: v8:12281
Change-Id: Ia26355a665b7dfcdb47144863c1bec296774abb2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3204963
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77256}

Bug: chromium:1255096
Change-Id: I809fb4ef5eaa06975a3e24ad0a36d803aa791c32
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3206837
Auto-Submit: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77255}

The expected assertion is specific to irregexp codegen.

Bug: chromium:1255368
Change-Id: I14d033285014727de2e63582ed798fc82570497d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3207892
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77254}

Bug: v8:12253
No-Try: true
Change-Id: I40d2096fb140389ac6b123506d2170e466534918
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3195712
Commit-Queue: Almothana Athamneh <almuthanna@chromium.org>
Auto-Submit: Almothana Athamneh <almuthanna@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Liviu Rau <liviurau@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77253}

Replace 'virtual' by 'override' when overriding methods.
This uncovered one method which was unnecessarily virtual:
{RegExpMacroAssemblerARM64::CheckCharacters}.

R=jgruber@chromium.org

Bug: v8:12244
Change-Id: Ia4480b7b234d3d40cc5821c38ef83f74f8421b6b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3204966Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77252}

With dynamic tiering, typically not all functions of a WebAssembly
module get compiled with TurboFan, and therefore the code caching would
never get triggered. With this CL code caching is triggered whenever
{FLAG_wasm_caching_threshold} bytes of TurboFan code are generated.

This new caching event is only triggered when --wasm-dynamic-tiering is
enabled.

R=clemensb@chromium.org

Bug: v8:12281
Change-Id: I939325aea7e4310aa76c936636799661c05d4079
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3202593Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77251}

When aborting code generation, we need to call {AbortedCodeGeneration}
on the {MacroAssembler} contained in the {RegExpMacroAssemblerARM}.

R=jgruber@chromium.org

Bug: chromium:1255368
Change-Id: If37351e8f5715e23affd21ad2de8a8eaad3ea094
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3204965Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77250}

Mirroring Code::entry and CodeDataContainer::code_entry_point.
Unused for now; will be used very soon.

Change-Id: I93b86f0c601a044bb4e6afea642d5d3f721ef73a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3205893Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Auto-Submit: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77249}

Allocate code range close to binary (<2GB) when pointer compression is
disabled. And enable short builtin calls if it succeeds.

Bug: v8:12045, v8:11527
Change-Id: I1a9d635b243337980fd75883d9802bc0cee75e43
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3069457
Commit-Queue: Hao A Xu <hao.a.xu@intel.com>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77248}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/ebad853..98d97fd

Rolling v8/buildtools/third_party/libc++abi/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxxabi/+log/9959b06..fd29545

Rolling v8/buildtools/third_party/libunwind/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind/+log/a002c72..15999e7

Rolling v8/third_party/aemu-linux-x64: FAd7QuRV-mCjbKgg2SO4BBlRCvGIsI672THjo3tEIZAC..3M11fN4tUefKOZExDkJbUXnPiJICCo0TwPwoejHowg8C

Rolling v8/third_party/android_platform: https://chromium.googlesource.com/chromium/src/third_party/android_platform/+log/7a11b79..1a68ade

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/c0b9d25..4b10835

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/0e2fb33..281edf7

Rolling v8/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest/+log/3b49be0..075810f

Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/dfa96e8..bffc82b

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/c06edd1..8640ca8

Rolling v8/tools/luci-go: git_revision:a373a19da0fbbbe81b2b684e3797260294393e40..git_revision:ec7a06c4fcde59629839f8e89c52a08d647e75f4

Rolling v8/tools/luci-go: git_revision:a373a19da0fbbbe81b2b684e3797260294393e40..git_revision:ec7a06c4fcde59629839f8e89c52a08d647e75f4

Rolling v8/tools/luci-go: git_revision:a373a19da0fbbbe81b2b684e3797260294393e40..git_revision:ec7a06c4fcde59629839f8e89c52a08d647e75f4

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

Change-Id: I007b32f3475eb71678e50dbf4efa15a88ec85ff6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3206022Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#77247}

This reverts commit a1e6efd8.

Reason for revert: Break Arm64

Original change's description:
> [intl] Fix consistency in Intl API
>
> Fix several edge cases consistency issues with ICU discovered by test262 test by
> using Intl Enumeration API
> 1. Work around ICU short coming of always fallback in currency display
>  name so when the fallback is "none" in DisplayNames, the force fallback
> code will produce the correct undefined from the of(currency_code) method.
> 2. Always check numbering system is not algorithm based numbering system
> to fix DateTimeFormat/RelativeTimeFormat/NumberFormat
> resolvedOptions().numberingSystem when the reqested numberingSystem is one
> of the numbering systems that we filter out the resources and not supported.
> 3. Generalize the iso8601 bit solution in DateTimeFormat and rename it to
> alt_calendar bit to also fix DateTimeFormat resolvedOptions report
> calendar as "islamic" while requesting "islamic-rgsa".
> 4. Work around reporting inconsistency of currency code and display name
> in ICU.
>
> Bug: v8:12209
> Change-Id: Ibd349ee55426fad7d6f20a5e93fb35ff7438e111
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3153576
> Commit-Queue: Frank Tang <ftang@chromium.org>
> Reviewed-by: Shu-yu Guo <syg@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#77242}

Bug: v8:12209
Change-Id: I6b8ac7dc89eda158e29c9d653825cb20a89341aa
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3207379Reviewed-by: Frank Tang <ftang@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#77246}

Bug: v8:7793
Change-Id: I1d5f85921f06e22679053cc7b2fe0a1371562048
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3206270
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77245}