This CL optimizes Heap::EnsureSweepingCompleted() by only ensure that
sweeping is finished for that object's page only and not for the whole
heap.

For this purpose the page is removed from the sweeping_list_ and
processed on the main thread. In case the object is in new space,
this method will just use EnsureIterabilityCompleted() since
the iterability task doesn't currently have any kind of synchronization.
Also the new space will generally be much smaller.

Bug: v8:11837
Change-Id: I7e878b5c84c223009fac0d58798197be5cd524e1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2958488
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75148}

Before this CL the C strings were generated using new char[] and
destroyed using delete. Fix this by avoiding a raw new[] call and
directly using unique_ptr.

Bug: chromium:1056170
Change-Id: I894171d58a3f7a765cdf86e07d3da2e9298a4a92
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2960275Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75147}

Add better support for lots of thin ticks by:

  * Removing stroke on ticks (so that the stroke isn't thicker than the
    tick itself)
  * Alternating colours of the ticks between light and dark (so that
    neighbouring ticks are still distinguishable)
  * Making selection drawing use isInputPending to allow faster looping
    over multiple ticks.

Change-Id: Iaa13fe4820d3d3168e085dfc01d7581cbc1739f0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2959626
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75146}

In the same vein we did tagged stores, we can do tagged loads.

As a drive-by, move GetTSANRelaxedStoreStub to CodeFactory.

Bug: v8:7790, v8:11600
Change-Id: Ic1ef3245623756538eab64c3358047e3797195c1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2953162
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75145}

R=mvstanton@chromium.org

Change-Id: Ia9b5b6e3b80334555faddd1fbc70995d414295a6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2960889Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75144}

Bug: v8:11879
Change-Id: I3f2f65d38fc656155b27b8835516cbf2832bf269
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2649032Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75143}

Bug: v8:11879, v8:11880
Change-Id: I6b37148ae2a971bda0cbb6636f64561ab0a02ba5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2960215
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75142}

Port 407317a2

Change-Id: I6d46b2c9b9bafb0287fa711822aac8ffdb30c7ba
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2962153
Auto-Submit: Liu yu <liuyu@loongson.cn>
Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#75141}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/b59724c..e6942ef

Rolling v8/buildtools/third_party/libc++abi/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxxabi/+log/e5f25a3..6c29693

Rolling v8/third_party/aemu-linux-x64: KF0Sz0CG_sURJodN44_YMwy0VU9tagOFFB_3EDTux1kC..XSqCv80jM_M_v5sYf8LVksQaL1zsbc6Pp9y-6WBCkbsC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/2f46970..e30a74f

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/ef579a1..3b56309

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

Change-Id: I3b333c34f79e876889148c808c7e1aac3866cf11
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2962152Reviewed-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@{#75140}

Bug: v8:11879
Change-Id: Ifb894d8beec6b54a9b7ff879dd4d6710306ba15b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2960217
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75139}

This is a reland of 5d84b6cb. PS2 contains
the fix for a copy&paste error in a preprocessor condition.

Original change's description:
> [no-wasm] Exclude trap-handler implementation
>
> The trap handler is only needed for WebAssembly, hence it can be
> excluded in no-wasm builds (v8_enable_webassembly = false).
> This makes it easier to port WebAssembly to platforms that do not need
> to support WebAssembly.
>
> R=ahaas@chromium.org, jkummerow@chromium.org
> CC=johnx@google.com
>
> Bug: v8:11877
> Change-Id: I25c34c2c4f1122227047e13add532ee2b9f73d2f
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2953285
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75101}

Bug: v8:11877
Change-Id: I70dba5dc8762c65a9c751ff6619a3b0ebb542837
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2960214Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75138}

This CL also removes code handler related logic from CodeFactory
and removes unused CodeFactory::BinaryOperation().

Bug: v8:11879, v8:11880
Change-Id: I4ea3074b7143975bea3f9367bcab84cdfcd86827
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2960948
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75137}

Just as other skipped tests, this new test uses SAB to synchronize
between Workers, thus timing (and hence amount of allocations) is
nondeterministic.

R=syg@chromium.org

Bug: v8:11881
Change-Id: I9cd375a1f804aac4248a7c491e75a1c7c7919e82
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2959627Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75136}

Relevant links:
https://github.com/WebAssembly/exception-handling/issues/153
https://github.com/WebAssembly/exception-handling/pull/156

R=clemensb@chromium.org

Bug: v8:8091
Change-Id: I0deeb9665c6648e643d0aa4f310b7676e1c2fa32
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2959624
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75135}

Port 407317a2

Original Commit Message:

    - Convert Builtin to enum class
    - Change int-based builtin_index methods to use Builtin
    - Change Builtins::builtin to Builtins::code

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

Change-Id: Ic92eeea4a0d0aaf38d78a93bfbaac2bb10403dae
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2960908Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#75134}

TNode has a templated constructor from TNode<U>, but this doesn't take
precedence over the auto-generated copy constructor, which results in a
warning being fired.  Fix by adding an explicit copy constructor that
does what the templated constructor does, which in turn requires fixing
some missing #includes that slipped by due to the lack of
LazyTemplateChecks() in the autogenerated copy constructor.

Bug: chromium:1213098
Change-Id: Iad40950261af8f88396be9227355e4e013837341
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2953503Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75133}

This reverts commit fd93f338.

Reason for revert: Out of bounds errors in Unity benchmark (link is internal).

Original change's description:
> [wasm][liftoff] Cache the memory start register
>
> WebAssembly functions often have subsequent memory accesses, and each of
> these memory accesses need the start address of the memory in a register.
> With this CL the register with the memory start address is cached, so
> only the first memory access has to load the memory start address into a
> register, subsequent memory accesses can just reuse the register.
>
> In first measurements with the epic benchmark this reduces the size of
> the generated Liftoff code by a bit more than 5%.
>
> R=​clemensb@chromium.org
>
> Bug: v8:11862
> Change-Id: Ic33e7e3c00a4209570821269c728187affbeadcf
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2947403
> Commit-Queue: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75113}

Bug: v8:11862
Change-Id: I20c7e7d729cf9846499db90c02f8581d7f994ace
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2960216
Auto-Submit: Clemens Backes <clemensb@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@{#75132}

Constructors define instance types for their instances while accessors
define a range of permissable instance types for receiver checks.\

Bug: v8:11476
Change-Id: I48b5326ec0a4e847283c2fa5c8f1705302727453
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2821430Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75131}

improve logEntry hit testing performance
fixing flame graph rendering
adding some comments
adding flamechart highlighting

Bug: v8:10644, v8:11835
Change-Id: I2ab2f63b9e8339c6c25bb7023772fc97dfc56c2e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2959615
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75130}

Code protection scopes now work with shared code, hence the TODO can be
removed.

R=jkummerow@chromium.org

Change-Id: I925732c653f652d4576f21e82c96c1477b11ec12
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2959612
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75129}

This configuration (PKU with fallback to mprotect) is already finched,
and can hopefully be enabled by default soon. Hence stage it behind
--future to get more test and fuzzer coverage.

R=jkummerow@chromium.org
CC=dlehmann@google.com

Bug: v8:11714
Change-Id: I5c38c71582e79e3348e6296cbf175655d00a635c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2959611Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75128}

- Convert Builtin to enum class
- Change int-based builtin_index methods to use Builtin
- Change Builtins::builtin to Builtins::code

Change-Id: Id9e3bb83da97e8894ca7ca78e1e852da60675619
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2949104
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75127}

Now that try blocks don't need a catch handler, ensure that we still
properly close the scope when we handle the "end" opcode.

R=clemensb@chromium.org

Change-Id: I012939d5b3ee9caee9275a2f0abd65e517593870
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2959623Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75126}

Add a new LogEntry for sharedlib PCs

Change-Id: I4f7fdca93a9905e41b73347df475dffcb84bcb89
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2959620
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75125}

This is a reland of 4cd856ee

This CL fixes the problem that local_isolate() returned nullptr on
the main thread.

Original change's description:
> [heap] Introduce ParkedSharedMutexGuardIf and use it in compiler
>
> In some cases it could happen that the concurrent compiler tries to get
> a shared lock on a mutex that is already exclusively held by the main
> thread. The background thread will then block itself until the
> main thread leaves the critical section. If the main thread then also
> starts a GC while holding the lock, this will result in a deadlock.
>
> A GC can't start until the background thread reaches a safepoint and
> the main thread can't leave the critical section before the GC ran.
>
> This CL introduces a new version of SharedMutexGuard named
> RecursiveSharedMutexGuardIfNeeded. This class will park the thread
> when blocking is needed and will unpark the thread again as soon as
> the lock was acquired successfully. This resolves the deadlock on
> safepointing.
>
> Turbofan can then simply use that class internally for
> MapUpdaterGuardIfNeeded.
>
> Bug: v8:10315, chromium:1218318
> Change-Id: Ice04b222cc979e4905791118caede26e71fca6de
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2953288
> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75107}

Bug: v8:10315
Bug: chromium:1218318
Change-Id: Ic56afb14a537e0cbf412311f11407c1f09278225
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2958408Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75124}

M1 hardware uses the CodeSpaceWriteScope (which uses MAP_JIT under the
hood), hence all other memory protection mechanisms should be disabled
there.
Trying to protect code space allocated with MAP_JIT would fail
otherwise, resulting in a CHECK failure.

R=jkummerow@chromium.org
CC=​dlehmann@chromium.org

Bug: chromium:1218782
Change-Id: I626990575c2180168c2e421a93b9f0b035382f03
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2959613
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75123}

This guard is deprecated. We actually have floating patches in g3 that
removes these lines.

Change-Id: I11168b3ca1f3985039cf31ddef70d5b292de85b6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2959619
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75122}

This is the last CL of the code generated stores.

Bug: v8:7790, v8:11600
Change-Id: If8bbabb422027f938c7acc0bdc12a233dfed580e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2950760
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75121}

This moves all of the FunctionTemplateInfo code into templates.cc and
removes the inline keyword from BreakAtEntry which is moved out of
templates-inl.h. As a result templates-inl.h no longer depends on
shared-function-info-inl.h. This in turn uncovered lots of other missing
includes which are now in place.

Change-Id: I9bc152d5e3db0e793db135a8cfcf97f6d8bcbb8a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2953295Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75120}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/8870cb4..b59724c

Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/c793cca..be7dcbc

Rolling v8/buildtools/linux64: git_revision:39a87c0b36310bdf06b692c098f199a0d97fc810..git_revision:e0c476ffc83dc10897cb90b45c03ae2539352c5c

Rolling v8/buildtools/third_party/libc++abi/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxxabi/+log/7e3b768..e5f25a3

Rolling v8/buildtools/third_party/libunwind/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind/+log/950faee..7e85c7a

Rolling v8/third_party/aemu-linux-x64: Hf11zqHzrfja2miAIic8j5jVjfs3rcuSFj8vUK-AVYAC..KF0Sz0CG_sURJodN44_YMwy0VU9tagOFFB_3EDTux1kC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/a8bae77..2f46970

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/b508ecd..ef579a1

Rolling v8/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest/+log/53495a2..e2239ee

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/0c64e83..de043ec

Rolling v8/tools/luci-go: git_revision:2cc9805d5ad186367461ef1c4f0c59098b450418..git_revision:2adc53281f4a72ecb71e84a8af5acc0fced04cc9

Rolling v8/tools/luci-go: git_revision:2cc9805d5ad186367461ef1c4f0c59098b450418..git_revision:2adc53281f4a72ecb71e84a8af5acc0fced04cc9

Rolling v8/tools/luci-go: git_revision:2cc9805d5ad186367461ef1c4f0c59098b450418..git_revision:2adc53281f4a72ecb71e84a8af5acc0fced04cc9

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

Change-Id: Iec2c37e934759add7caeb0876b4a057d2f5c22c3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2960074Reviewed-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@{#75119}

Additionally, reduce the maximum times a loop can be unrolled to 5.

Bug: v8:11298
Change-Id: Ia3cc5955c91e70abf388e08bdc37aba998b34b93
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2953297Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75118}

If a module is not fully (baseline) compiled yet, we cannot reliably
tier it down, because we might not have the wire bytes for all functions
available (in streaming compilation). After baseline compilation
finished, we already check if we need to tier down, and do it then.
Hence we can just skip any tier-down of unfinished modules.

We cannot easily test this in V8 stand-alone, as inspector-test can only
execute one command at a time, so we cannot trigger asynchronous
compilation and then enable the debugger while this is running.

R=thibaudm@chromium.org

Change-Id: I250162a8d3c20599cacebff2f4f540ff6f8b1946
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2953298Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75117}

WireBytesStorage is the class used to access the wire bytes of a
function for compilation. It is stored and passed in a shared_ptr,
because it can be updated while compilation is running, and the
compilation threads will keep the old reference alive until the last
reference is dropped.
This CL fixes a few issues where we unnecessarily passed a reference
to the shared_ptr instead of just a raw pointer, and changes one
copy-assign into a move-assign to avoid an unneeded reference increase
and decrease.

R=thibaudm@chromium.org

Bug: v8:11879
Change-Id: I18b626a7b6cde09d5b29f091bd9f49d01d408206
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2953196Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75116}

Bug: v8:7748
Change-Id: I3fa510b4dc35d3f58532ecbbeecd79d2826ff667
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2951722
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75115}

Bug: chromium:1217912
Change-Id: Ic34e56a223ce4068c4ce62e001dd22b49f153d67
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2959608
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75114}

WebAssembly functions often have subsequent memory accesses, and each of
these memory accesses need the start address of the memory in a register.
With this CL the register with the memory start address is cached, so
only the first memory access has to load the memory start address into a
register, subsequent memory accesses can just reuse the register.

In first measurements with the epic benchmark this reduces the size of
the generated Liftoff code by a bit more than 5%.

R=clemensb@chromium.org

Bug: v8:11862
Change-Id: Ic33e7e3c00a4209570821269c728187affbeadcf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2947403
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75113}

Bug: chromium:1217912
Change-Id: I61f1dd82a5fdcae3d134d05c76c06ee47feffcca
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2953281Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75112}

This reverts commit 26f4585e.

Reason for revert: Clusterfuzz issues

Original change's description:
> [turbofan] Turn on --turbo-optimize-apply by default
>
> Bug: v8:9974
> Change-Id: I5853177be27d0d31087e436f0311d5a077cc2124
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2951723
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Commit-Queue: Georg Neis <neis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#75098}

Bug: v8:9974
Change-Id: I6ead63c2ae8ed2693805c337b68435b3de99d018
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2960208
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75111}

Drive-by: Also add deferred function references.

Bug: v8:11525
Change-Id: If546f2e6c5a991372f1b99dac149504941a24b3e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2951731
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75110}

This CL adds WASM_ARRAY_ELEMENTS to distinguish WasmArray maps.

Bug: v8:11804
Change-Id: I243ce24c2f2246efbc223af14361c28506e9a2d2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2922884
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75109}