1. Adds the flag --sparkplug-on-heap
2. Creates OnHeapAssemblerBuffer
3. Generates code on heap (but still relocates later)
4. Provides Assembler::IsOnHeap function

Bug: v8:11872
Change-Id: I6223bf27a5fbcfb5f94f3462b951443b35273661
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2949097
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75291}

Feedback suggests that it would be easier to trace minified JS code if
line numbers were included in the ETW JIT events, so I added them.

Bug: v8:11043
Change-Id: I1660c695db2e4659184b2b679839dafe256fb3ff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2971625Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Sara Tang <sartang@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#75290}

This is a reland of 0f90a2aa.
The issue was inverted destructor order between WasmCodeManager and
WasmEngine. WasmEngine has to be destructed first, because it contains
a barrier to ensure that background compile threads finished before
global state is being destructed.

Original change's description:
> [wasm] Provide a global WasmCodeManager
>
> The WasmCodeManager was part of the WasmEngine so far, but there is only
> exactly one WasmEngine. Hence we can pull it out, and also remove the
> pointer in the WasmCodeAllocator.
>
> The argument passed from the single constructor call is now inlined in
> the constructor itself.
>
> Drive-by: Replace "GetPlatformPageAllocator()->CommitPageSize()" by just
> "CommitPageSize()".
>
> R=jkummerow@chromium.org
>
> Bug: v8:11879
> Change-Id: I6c0e74cea308f5806d1aa479945d90b6ef8d1613
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972909
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75270}

Bug: v8:11879
Change-Id: I0eaa2395f5c1e30f3f7303c5f3df70c227b74d3d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2975859
Auto-Submit: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75289}

This will download a prebuilt bazel on Ubuntu bots if gclient variable
download_prebuilt_bazel is set. The currently pinned version is:
5.0.0-pre.20210604.6.

This is planned to only run on specific bots that use a new recipe
for building with bazel:
https://crrev.com/c/2972749

Bug: v8:11912
Change-Id: I8ff405fc03bfede4762bf4e8577cb1feab56f7c4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972918
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Liviu Rau <liviurau@chromium.org>
Reviewed-by: Liviu Rau <liviurau@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75288}

This reverts commit 3296de2f.

Reason for revert: Blocks the roll - https://chromium-review.googlesource.com/c/chromium/src/+/2970676

Original change's description:
> [sparkplug] Trigger compilation when a FBV exists
>
> We were gating baseline compilation on FBV allocation, but in some
> cases, the feedback vector may be allocated eagerly (notably, if we are
> logging function events). Instead, unconditionally try baseline
> compilation after ensuring the feedback vector exists.
>
> Bug: v8:11420
> Change-Id: I1264a1d541a74d4eccb5caf65c360ac23836a1a8
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2953161
> Auto-Submit: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Patrick Thier <pthier@chromium.org>
> Reviewed-by: Patrick Thier <pthier@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75242}

Bug: v8:11420
Change-Id: Ia9524e3a57eda7ec069f29652acc7593bf680509
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2976654
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75287}

This reverts commit a93293d9.

Reason for revert: Need to revert a dependency which is blocking the roll - https://chromium-review.googlesource.com/c/v8/v8/+/2953161

Original change's description:
> [sparkplug] Trigger compilation only when we don't have baseline data
>
> If we trigger baseline compilation unconditionally on bytecode budget
> interrupt after we have compiled the function with sparkplug already, we
> will arm back-edges for OSR unconditionally. Since the OSR arming
> mechanism is the same for Sparkplug and TurboFan, this means that we
> will immediately arm back-edges for OSR to TurboFanned code.
>
> Bug: v8:11656
> Change-Id: Ic8e5d1899a3a203321e063ada474d39f2627ea88
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972922
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Patrick Thier <pthier@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75285}

Bug: v8:11656
Change-Id: I2e2910f8882314260ff70a3c996ef74903b6851b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2976653
Auto-Submit: Maya Lekova <mslekova@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/master@{#75286}

If we trigger baseline compilation unconditionally on bytecode budget
interrupt after we have compiled the function with sparkplug already, we
will arm back-edges for OSR unconditionally. Since the OSR arming
mechanism is the same for Sparkplug and TurboFan, this means that we
will immediately arm back-edges for OSR to TurboFanned code.

Bug: v8:11656
Change-Id: Ic8e5d1899a3a203321e063ada474d39f2627ea88
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972922Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75285}

When looking up the break index for a given source position, default to
the last break index if there is neither a precise match nor a breakable
position after the source position (in which case we still pick the
first candidate).

Fixed: chromium:1222065
Bug: chromium:901819, chromium:782461, chromium:1222060
Change-Id: I10d6a086b2d5fadc9e6dca0c49ed4187eb0359ff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972917
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Kim-Anh Tran <kimanh@chromium.org>
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75284}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/e03cfed..69cba92

Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/466954e..7bff39b

Rolling v8/buildtools/third_party/libc++/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxx/+log/8fa8794..79a2e92

Rolling v8/third_party/aemu-linux-x64: PN9-ZWJ3VamzkSeIVWLhS3mXDEVLPX86Ht5EEDH1O-EC..KN9a-2MYhLQ9kDLdCOca4xZcBjrhMIzoD4ReyO0u95IC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/cb63922..2ba6b1f

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/473499b..b714c17

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/03ff857..2d4e9fd

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

Change-Id: I1c17166b07efae9631726b57f27260997571f120
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2977585Reviewed-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/master@{#75283}

This reverts commit 24c626c1.

Reason for revert: Blocks V8 roll into Chromium (changed error messages cause tests to fail):
https://ci.chromium.org/p/chromium/builders/try/linux-rel/724109?

Original change's description:
> Improve error messages for property access on null/undefined
>
> Only print the property name when accessing null/undefined if we can
> convert it to a string without causing side effects.
> If we can't, omit the property name in the error message.
> This should avoid confusion when the key is an object with toString().
> E.g. undefined[{toString:()=>'a'}] doesn't print 'read property [object
> Object]' anymore, which was misleading since the property accessed would
> be 'a', but we can't evaluate the key without side effects.
>
> Bug: v8:11365
> Change-Id: If82d1adb42561d4851e2bd2ca297a1c71738aee8
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2960211
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Commit-Queue: Patrick Thier <pthier@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75250}

Bug: v8:11365
Change-Id: Ic63f34033254f55b3871041633d84ea48586a75d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2977374
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75282}

This enables running some of the new instructions on the simulator
including vcgd and vclgd.

Change-Id: Icd1c6ced124aec8608dece855f85ba350c4247fd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2976027Reviewed-by: Joran Siu <joransiu@ca.ibm.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#75281}

This is a reland of dd8845cd

Original change's description:
> [intl] Improve test coverage of "best fit" localeMatcher
>
> https: //docs.google.com/document/d/1cPGfiihn76yj2iAomKcspPFyLLcnk3WkCiqceBQPQyk/edit#heading=h.cc9tt7s0iwsd
> Bug: v8:7051
> Change-Id: I8c35e859062c5bdb009334dd1b725751e6df2123
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2965481
> Reviewed-by: Shu-yu Guo <syg@chromium.org>
> Commit-Queue: Frank Tang <ftang@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75228}

Bug: v8:7051
Change-Id: I9af13b8fdf7ec3de2ac24050074d13fcdef981c7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2973648Reviewed-by: Frank Tang <ftang@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75280}

  - Fix inline script line nos
  * Change the map source pos panel to a table
  3. Fix script sorting to not crash on missing name

Change-Id: I250c830f4be5f734a9489622ce162615bf80aab7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2964606
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75279}

This reverts commit 2588380d.

Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Arm%20-%20debug%20builder/34664/overview

Original change's description:
> [assembler][arm64][arm][ia32] Add more Assembler::CodeComment
>
> Use more code comments to better document generated assembler code.
> This CL also attaches a CodeComment to FrameScope.
>
> Change-Id: I45afc3e4078dc161316b877fbbd1ae8bcd6e821d
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2964392
> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
> Reviewed-by: Victor Gomes <victorgomes@chromium.org>
> Commit-Queue: Camillo Bruni <cbruni@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75277}

Change-Id: I6d36535ca96133cc83b3d6194a3d53889f735499
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972826Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75278}

Use more code comments to better document generated assembler code.
This CL also attaches a CodeComment to FrameScope.

Change-Id: I45afc3e4078dc161316b877fbbd1ae8bcd6e821d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2964392Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75277}

Without this, the files are ignored when V8 source is copied to another
repository (for example Node.js).

Change-Id: Ia1ac2d2673d13a266f2beaa1dadd93df903afd5d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972915Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michaël Zasso <mic.besace@gmail.com>
Cr-Commit-Position: refs/heads/master@{#75276}

When v8_enable_external_code_space is enabled the Code objects are
allowed only
- in CodeDataContainer::code field
- as uncompressed values embedded in Code instruction streams

Bug: v8:11880
Change-Id: I080a678fd77a7e42c6a397e7145a640fd07d6e83
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2969828Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75275}

This reverts commit 0f90a2aa.

Reason for revert: Breaks MSAN, please see https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/38941/overview

Original change's description:
> [wasm] Provide a global WasmCodeManager
>
> The WasmCodeManager was part of the WasmEngine so far, but there is only
> exactly one WasmEngine. Hence we can pull it out, and also remove the
> pointer in the WasmCodeAllocator.
>
> The argument passed from the single constructor call is now inlined in
> the constructor itself.
>
> Drive-by: Replace "GetPlatformPageAllocator()->CommitPageSize()" by just
> "CommitPageSize()".
>
> R=​jkummerow@chromium.org
>
> Bug: v8:11879
> Change-Id: I6c0e74cea308f5806d1aa479945d90b6ef8d1613
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972909
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75270}

Bug: v8:11879
Change-Id: I110eec313762d73073f530aec7cf0be82c4db344
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972921
Auto-Submit: Maya Lekova <mslekova@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/master@{#75274}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/d6115b1..e03cfed

Rolling v8/buildtools/linux64: git_revision:7d803996740ccd587c54062750cbe04dfbc3c423..git_revision:170c2dba1e0c0299fe8c6a441caf2f2352a42ae0

Rolling v8/third_party/aemu-linux-x64: h_kO6UaQmxXGNfG0ofG4wgKw_URVHcderPkx6AlamR0C..PN9-ZWJ3VamzkSeIVWLhS3mXDEVLPX86Ht5EEDH1O-EC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/893c99a..cb63922

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/0e77445..03ff857

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

Change-Id: Ic1579515b592206a34f25296d9e24e9d99a8e13d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2975087Reviewed-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/master@{#75273}

Merges `NativeModuleModificationScope` (with an implementation using
Intel PKU, if available, and mprotect otherwise) and
`CodeSpaceWriteScope` (for Apple Silicon, where switching to RWX with
mprotect is disallowed anyway, so MAP_JIT and thread-local switching
must be used).

Because `CodeSpaceWriteScope` sounded better (and is shorter), we kept
its name (which unfortunately makes the diff a bit harder to read).

R=clemensb@chromium.org
CC=jkummerow@chromium.org

Bug: v8:11714

Cq-Include-Trybots: luci.v8.try:v8_linux64_fyi_rel_ng
Change-Id: Ib2a7d18e72797a725ed34b904c70769166d811dd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972911Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Daniel Lehmann <dlehmann@google.com>
Cr-Commit-Position: refs/heads/master@{#75272}

Rolling v8/third_party/google_benchmark/src: https://chromium.googlesource.com/external/github.com/google/benchmark/+log/5b75184..62937f9

Add missing trailing commas (#1182) (Dominic Hamon)
https://chromium.googlesource.com/external/github.com/google/benchmark/+/62937f9

Provide helpers to create integer lists for the given ranges. (#1179) (PCMan)
https://chromium.googlesource.com/external/github.com/google/benchmark/+/c932169

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

Change-Id: I81658863aa16aebb1c0f76d79bdbf6abcbd1accf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2975083Reviewed-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/master@{#75271}

The WasmCodeManager was part of the WasmEngine so far, but there is only
exactly one WasmEngine. Hence we can pull it out, and also remove the
pointer in the WasmCodeAllocator.

The argument passed from the single constructor call is now inlined in
the constructor itself.

Drive-by: Replace "GetPlatformPageAllocator()->CommitPageSize()" by just
"CommitPageSize()".

R=jkummerow@chromium.org

Bug: v8:11879
Change-Id: I6c0e74cea308f5806d1aa479945d90b6ef8d1613
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972909
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75270}

The exception meta-data API created several objects in the wrong
context, resulting in the exception context being kept alive for
too long.

Bug: chromium:1221089
Change-Id: I02aece4e10d9bd559d49f98fe1c3e44a09e27eef
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2975301Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75269}

... and OPTIMIZED_CODE_LIST and DEOPTIMIZED_CODE_LIST slots of
NativeContext which serve as heads of respective weak lists of Code
objects.

Drive-by: trivial NativeContext methods are moved to contexts-inl.h
header.

Bug: v8:11880
Change-Id: I0f2ca967b2820f84c279fea702bab28829f65d0e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2968416Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75268}

In an effort to merge `CODE_SPACE_WRITE_SCOPE` and
`NativeModuleModificationScope`, this CL moves the interface and
implementation of the latter into code-space-access.{h,cc}, where the
former already lives. No other changes to the code itself.

R=clemensb@chromium.org
CC=jkummerow@chromium.org

Bug: v8:11714

Cq-Include-Trybots: luci.v8.try:v8_linux64_fyi_rel_ng
Change-Id: I1aabce26f2033430523a7a3a0a4864e7267bee21
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972803Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Daniel Lehmann <dlehmann@google.com>
Cr-Commit-Position: refs/heads/master@{#75267}

There is exactly one WasmEngine per process, hence we do not need to
store or pass a pointer to it. We just use {GetWasmEngine} (which just
reads a global variable) whenever we need it.

R=jkummerow@chromium.org

Bug: v8:11879
Change-Id: I7e0e86e326f4cafe5a894af0ff6d35803c0340a9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972725
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75266}

The WasmEngine is shared across the whole process, so there is no need
to store it in every Isolate.
Instead, we can just get it from everywhere on any thread using
{wasm::GetWasmEngine()}, which is a simple read of a global.

R=jkummerow@chromium.org

Bug: v8:11879
Change-Id: I13afb8ca3d116aa14bfaec5a4bbd6d71faa9aa17
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2969825Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75265}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/11f1e3d..d6115b1

Rolling v8/buildtools/linux64: git_revision:d2dce7523036ed7c55fbb8d2f272ab3720d5cf34..git_revision:7d803996740ccd587c54062750cbe04dfbc3c423

Rolling v8/third_party/aemu-linux-x64: R61GnhotR5EpRE5ZeVtRvIQPRz8z-LSXnxN1ighigqMC..h_kO6UaQmxXGNfG0ofG4wgKw_URVHcderPkx6AlamR0C

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/2573cff..893c99a

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/59140d4..473499b

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/66b4484..0e77445

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

Change-Id: I00eab552662eb15afd50c8b77ff72932806d443b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2973786Reviewed-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/master@{#75264}

This reverts commit f8a40f6d.

Reason for revert: Performance regression

Original change's description:
> [intl] Ship "best fit" LocaleMatcher for m93
>
> LGTM1 Mike West mkwst@chromium.org
> LGTM2 Chris Harrelson chrishtr@chromium.org
> LGTM3 Yoav Weiss yoavweiss@chromium.org
>
> Design Doc:
> https://docs.google.com/document/d/1cPGfiihn76yj2iAomKcspPFyLLcnk3WkCiqceBQPQyk
> R2T: https://groups.google.com/a/chromium.org/g/blink-dev/c/W7TcX1tSHDI/m/1AthUhEWBAAJ
> I2S: https://groups.google.com/a/chromium.org/g/blink-dev/c/TpAvyXwHM_c/m/QXJKbClfAwAJ
> Stage in m92 Canary 92 92.0.4500.0 Dev 92 92.0.4503.3 Beta 92 92.0.4515.40
> https://chromiumdash.appspot.com/commit/eb6482784ca71d3b22db449fd941bfa9872d244a
>
>
> Bug: v8:7051, v8:11868, v8:11869
> Change-Id: Id1ae20234b764e6f6def83af651daf70056d0725
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2950559
> Reviewed-by: Shu-yu Guo <syg@chromium.org>
> Commit-Queue: Frank Tang <ftang@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75194}

Bug: v8:7051, v8:11868, v8:11869
Change-Id: I1c5d2c2201f7724eb7db67f2c5268b787d6ca8eb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2973649
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75263}

This reverts commit dd8845cd.

Reason for revert: Performance regression

Original change's description:
> [intl] Improve test coverage of "best fit" localeMatcher
>
> https: //docs.google.com/document/d/1cPGfiihn76yj2iAomKcspPFyLLcnk3WkCiqceBQPQyk/edit#heading=h.cc9tt7s0iwsd
> Bug: v8:7051
> Change-Id: I8c35e859062c5bdb009334dd1b725751e6df2123
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2965481
> Reviewed-by: Shu-yu Guo <syg@chromium.org>
> Commit-Queue: Frank Tang <ftang@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75228}

Bug: v8:7051
Change-Id: I4cf9484d727291ebc2868e3594ab1f18b19bec6b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2973227
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Frank Tang <ftang@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75262}

Change-Id: Ie092921e4a9c1e4a0acee827f73570f3f9617712
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2971557Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/master@{#75261}

Change-Id: I2335844f500790ccd3223c37768b6811daefbf66
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2971555Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#75260}

It will be used by consume_init_expr().

Bug: v8:11895
Change-Id: I577b5126a3c2cd0a6075ff9f085b4c93a8554846
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972906
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75259}

Change-Id: I568516149f49b7724680d9dfae6e078eb07a8b44
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2971552Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/master@{#75258}

Port f09de17c

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

Change-Id: I3b8c3df178a281b5195da649048e7c722516fd45
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2971551Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#75257}

Bug: v8:11879
Change-Id: I8a7643b8b6226cdae4fb5f741a2b50f82d1894bb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2973212
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75256}

Bug: chromium:1221591
Change-Id: Ie24334873d1e66de0e0aa90fa1fb49d4290b7b59
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2973214
Commit-Queue: Peter Kasting <pkasting@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Auto-Submit: Peter Kasting <pkasting@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75255}

Change-Id: I22345aef595be1e5daef0604139e39337f003f15
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972734Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#75254}

Change-Id: I39d7e9aa098e83c9268736cac993c69eccef0015
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972735Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/master@{#75253}

When we later introduce an additional template argument to WasmDecoder,
we will have to add it here too, as well as in all places which use
MemoryAccessImmediate. It is simpler to have a helper function in
WasmDecoder to fetch the 64-bit memory status.

Bug: v8:11895
Change-Id: I08edbf4e825cd148b30b2a5c0d04a26dfbaed186
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2972905
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75252}