It's confusing that we have CSA_CHECK and CSA_ASSERT and it's not
clear from the names that the former works in release mode and the
latter only in debug mode.

Renaming CSA_ASSERT to CSA_DCHECK makes it clear what it does. So now
we have CSA_CHECK and CSA_DCHECK and they're not confusing.

This also renames assert() in Torque to dcheck().

Bug: v8:12244
Change-Id: I6f25d431ebc6eec7ebe326b6b8ad3a0ac5e9a108
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3190104Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77160}

This reverts commit 6e6385a0.

Reason for revert: Breaks MSAN, see https://bugs.chromium.org/p/v8/issues/detail?id=12277

Original change's description:
> Update V8 DEPS.
>
> Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/ecb990f..28fa03f
>
> Rolling v8/buildtools/third_party/libc++abi/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxxabi/+log/50e90b8..31a3660
>
> Rolling v8/third_party/aemu-linux-x64: e_KiIcYNB7sHa2eqRBhqVoR_Mmg2Q7nqmzRCXzegWQAC..pE8RqfOzLp5AXCDDOSrlKJ4MZInfuyxWzRSwdXBe1doC
>
> Rolling v8/third_party/android_platform: https://chromium.googlesource.com/chromium/src/third_party/android_platform/+log/6e5dc9a..7a11b79
>
> Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/5afc365..01df326
>
> Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/764c927..9c24aed
>
> Rolling v8/third_party/instrumented_libraries: https://chromium.googlesource.com/chromium/src/third_party/instrumented_libraries/+log/eb740e9..0aa3fcf
>
> TBR=v8-waterfall-sheriff@grotations.appspotmail.com,mtv-sf-v8-sheriff@grotations.appspotmail.com
>
> Change-Id: If86099561baf7a927d6c5109790dad7b958208d0
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3194881
> 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@{#77153}

Change-Id: I40135e9ed7adfcbfca054969c729aba5d8c9c91e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3195713
Auto-Submit: Maya Lekova <mslekova@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Owners-Override: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77159}

Irregexp reentrancy (crrev.com/c/3162604) introduced a bug for global
regexp execution in which each iteration would use a new stack region
(i.e. we forgot to pop the regexp stack pointer when starting a new
iteration).

This CL fixes that by popping the stack pointer on the loop backedge.

At a high level:

- Initialize the backtrack_stackpointer earlier and avoid clobbering
  it by setup code.
- Pop it on the loop backedge.
- Slightly refactor Push/Pop operations to avoid unneeded memory
  accesses.

Bug: v8:11382
Change-Id: Ibad6235767e110089a2b346034f923590b286a05
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3194251Reviewed-by: Patrick Thier <pthier@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77158}

The V8 Inspector was sending an additional frame as part of async stack
traces for async functions, which pointed to the first executed `await`
in the async function. This is leaking an implementation detail of how
(and more precisely when) the inspector decides to collect this stack
trace. From the users perspective the async part of the stack trace is
supposed to capture what happened _prior to the task_ - meaning in case
of async functions: What lead to the execution of the async function.
This is reflected by the fact that the DevTools front-end (and the V8
Inspector itself) performs post-processing on these async call stacks,
removing the misleading top frame from it. But this post-processing is
not applied consistently to all async stack traces (i.e. the Console
message stack traces don't get this), and potentially also not applied
consistently across consumers of the Chromium debugger backend.

Instead the V8 Inspector now removes the top frame itself and thus
reports `await` consistently with how other async tasks are reported to
debugger front-ends.

Note: This preserves backwards compatibility with old versions of
devtools-frontend, which do post-processing (for the Call Stack) only on
async stack traces marked with "async function", while we now mark these
async stack traces with "await" instead (aligned with what the front-end
is using as user visibile string anyways in the Call Stack section, and
this matching will be updated in a separate follow up CL to look for
"await" instead of "async function").

Before: https://imgur.com/kIrWcIc.png
After: https://imgur.com/HvZGqiP
Fixed: chromium:1254259
Bug: chromium:1229662
Change-Id: I57ce051a28892177b6b96221f083ae957f967e52
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3193535
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77157}

Load instance type into a register instead of using memory operands for
several checks on ia32 and x64.

Drive-by: Name used registers in Generate_Call/Generate_Construct

Change-Id: I289c5e420fa03ca639c9b78266560cafb166f6f7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3190099Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77156}

It also updates the scripts to support Python3

Bug: chromium:1245634
Change-Id: Iffe29bacfd788575b35da6449d5830fc665da7a8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3194259
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77155}

Due to MIPS64 ISA feature, 32-bit values should be sign-extended
in 64-bit registers, no matter it's signed or unsigned.

Besides, LoongArch64 also has this feature, and a similar change
has been made before loong64 port's land in V8. This CL also make
a small fix for loong64.

Change-Id: Ib284662931082365f727925af61781e3653debc8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3193595Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Liu yu <liuyu@loongson.cn>
Cr-Commit-Position: refs/heads/main@{#77154}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/ecb990f..28fa03f

Rolling v8/buildtools/third_party/libc++abi/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxxabi/+log/50e90b8..31a3660

Rolling v8/third_party/aemu-linux-x64: e_KiIcYNB7sHa2eqRBhqVoR_Mmg2Q7nqmzRCXzegWQAC..pE8RqfOzLp5AXCDDOSrlKJ4MZInfuyxWzRSwdXBe1doC

Rolling v8/third_party/android_platform: https://chromium.googlesource.com/chromium/src/third_party/android_platform/+log/6e5dc9a..7a11b79

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/5afc365..01df326

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/764c927..9c24aed

Rolling v8/third_party/instrumented_libraries: https://chromium.googlesource.com/chromium/src/third_party/instrumented_libraries/+log/eb740e9..0aa3fcf

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

Change-Id: If86099561baf7a927d6c5109790dad7b958208d0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3194881Reviewed-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@{#77153}

I'm trying to remove annotations and make behavior more consistent. For
@generatePrint, there are two options: either generate printers for
every extern class, or never generate printers for extern classes. This
change implements the option of always generating printers. Classes that
require custom printing can easily hide the generated printer by using
DECL_PRINTER. This causes the generated file
gen/torque-generated/objects-printer.cc to grow to 1600 lines, including
many functions that are never used, but I think the consistency benefit
outweighs a little more compilation time on one file. This change also
removes custom printers in cases where the generated printer includes
all of the same content.

If folks would prefer the option to never generate printers, I'm open to
doing that instead. I like the notion that generating more code could
reduce the friction of adding new classes and thereby encourage people
to define precise types rather than using FixedArrays, but the current
implementation of generated printers is limited, and many printers have
been customized to show the data that matters the most. Unlike verifiers
and body descriptors, there are no correctness or safety concerns with
hand-written printers.

Some bugs showed up once we start generating printers for everything,
and this change fixes them:
- Printers incorrectly included ungettable fields like padding
- Printers called getters which might be hidden by hand-written classes
- The generated getter for Map::instance_type used
  ReadField<InstanceType>, which is not an arithmetic type since it's an
  enum

One more tiny drive-by fix: added a missing newline in the printers for
JSMap and JSSet.

Bug: v8:7793
Change-Id: Ib9e9575fbcb57879935ff18bf4db49fe276d2966
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3172190Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#77152}

Nobody uses the generated *_FIELDS macros anymore, so we can remove
them. I also renamed the generated file to represent its content better.

Bug: v8:7793
Change-Id: I49ab39e363d6961e7210cd67018b6fb83b65a162
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3192191Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#77151}

Port edc349db

Bug: v8:11235
Change-Id: I53538b1a18d778c4580683d300bc380ee1041c40
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3194874Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#77150}

This fixes a long-standing TODO to disallow importing receivers that
have "toString" or "valueOf" patched. Calling those methods could have
observable side effects, so allowing that would require bigger
refactorings to ensure that we only call each such function exactly once
per import, and in the right order.
Since this use case is rare, we just forbid importing such receivers.

R=jkummerow@chromium.org

Bug: chromium:1248677
Change-Id: I99bbd7db950ec3c7ac9cc1f59e8c476688e7d7b6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3190475Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77149}

Change-Id: Ida66b9c42cfb9bd5b59a83188a2dfa0d602d4036
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3192427Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#77148}

Port: 1cd7a582

Original Commit Message:

Class Constructors are special, because they are callable but [[Call]]
raises an exception. Instead of checking if a JS function is a class
constructor for every JS function call, this CL adds a new instance
type for class constructors.
This way we can use a fast instance type range check for the common
case, and only check for class constructors in the uncommon case were
a class constructor is called and when we need to raise an exception.

Change-Id: I578fde90d00d1e80cf36ba28205ce9bfe6830afb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3192422Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#77147}

This reverts commit 94958172.

Reason for revert: Breaks arm/arm64 ports, e.g. https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20arm64%20-%20sim/30120/blamelist

Original change's description:
> [torque] Get rid of @noVerifier annotation
>
> As one small step toward reducing annotations, I propose that all
> classes get generated verifiers unless they've opted out of C++ class
> generation via @doNotGenerateCppClass, and that generated verifiers
> always verify every Torque-defined field. If a generated verifier is
> incorrect, such as for JSFunction or DataHandler, we can just avoid
> calling it and hand-code the verification.
>
> Bug: v8:7793
> Change-Id: I7c0edb660574d0c688a59c7e90c41ee7ad464b42
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3171758
> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
> Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
> Cr-Commit-Position: refs/heads/main@{#77145}

Bug: v8:7793
Change-Id: I56da8a9726d23470e927be1be5e7bcede1399861
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3194262
Auto-Submit: Maya Lekova <mslekova@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Owners-Override: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#77146}

As one small step toward reducing annotations, I propose that all
classes get generated verifiers unless they've opted out of C++ class
generation via @doNotGenerateCppClass, and that generated verifiers
always verify every Torque-defined field. If a generated verifier is
incorrect, such as for JSFunction or DataHandler, we can just avoid
calling it and hand-code the verification.

Bug: v8:7793
Change-Id: I7c0edb660574d0c688a59c7e90c41ee7ad464b42
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3171758Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#77145}

This is a reland of e47f9200

Relanding for clang only.
GCC and MSVC will not inline.

Original change's description:
> cppgc: Inline allocation fast path across api boundary
>
> Bug: chromium:1239030, chromium:1056170
> Change-Id: I4a559027e63ebbd99e51344aa659d4fb284df88f
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3190094
> Commit-Queue: Omer Katz <omerkatz@chromium.org>
> Reviewed-by: Anton Bikineev <bikineev@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#77124}

Bug: chromium:1239030, chromium:1056170
Change-Id: Iaa52118ea0e6ccd78f5e7818fa30ed163906da83
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3191211Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77144}

This is a reland of 2db50670

crrev.com/c/3182223 resolves all known issues (and should prevent
additional issues in the future).

Original change's description:
> Reland "Reland "cppgc: Enable checks for assignments in prefinalizers""
>
> This is a reland of adb6276f
>
> Causes for previous revert was addressed by crbug.com/3140387 and
> crbug.com/3163579.
>
> Original change's description:
> > Reland "cppgc: Enable checks for assignments in prefinalizers"
> >
> > This is a reland of edcc8ff5
> >
> > Cause for previous revert was addressed by crbug.com/1241773.
> >
> > Original change's description:
> > > cppgc: Enable checks for assignments in prefinalizers
> > >
> > > Bug: v8:11749
> > > Change-Id: Ic027f732030fb6a2befeffeca9db2eacfd0830a5
> > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3099953
> > > Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> > > Commit-Queue: Omer Katz <omerkatz@chromium.org>
> > > Cr-Commit-Position: refs/heads/main@{#76370}
> >
> > Bug: v8:11749
> > Change-Id: I57fc138ace002d41e54f7f70250e4d19bc9262b0
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3122153
> > Auto-Submit: Omer Katz <omerkatz@chromium.org>
> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> > Commit-Queue: Omer Katz <omerkatz@chromium.org>
> > Cr-Commit-Position: refs/heads/main@{#76553}
>
> Bug: v8:11749
> Change-Id: I138ca374314108f0f23e234a8fd90d15d912120d
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168280
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Omer Katz <omerkatz@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76971}

Bug: v8:11749
Change-Id: I8bf48cecde910e74f40cf0cd6aa8a5ed19de1584
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3182224Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77143}

Remove infra-staging from numfuzz builders and add
no-fail instead. Also remove the staging builders.

Bug: v8:11826
Cq-Include-Trybots: luci.v8.try:v8_numfuzz_dbg_ng,v8_numfuzz_ng,v8_numfuzz_tsan_ng
Change-Id: Icd7bc6275b5c78e38f0e75b5d133b3b7056f333e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3182233
Commit-Queue: Almothana Athamneh <almuthanna@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77142}

Change-Id: I23f5a67a347c586fb26b99fd71fca8ea03cd83a4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3194258Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#77141}

Class Constructors are special, because they are callable but [[Call]]
raises an exception. Instead of checking if a JS function is a class
constructor for every JS function call, this CL adds a new instance
type for class constructors.
This way we can use a fast instance type range check for the common
case, and only check for class constructors in the uncommon case were
a class constructor is called and when we need to raise an exception.

Change-Id: Ic6fdd9829722d05559fdfd01f6100c61873a0872
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3186434Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77140}

During a final atomic pause CrossThreadPersistent handles need to be
frozen after they have been marked to avoid any
WeakCrossThreadPersistent handles creating new strong references
(through their Lock() call) that would retain objects.

Handles are frozen by acquiring a lock. Since this lock is also taking
by other threads on WCTP::Lock() this can introduce jank.

This CL improves the situation by delaying processing of CTP
references until absolutely necessary, i.e., when we have otherwise no
more objects to mark.

Bug: chromium:1252743
Change-Id: I872f38c6d24d7955bea74fd59685abd3019b385e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3194253Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77139}

.. and refactor js-regexp.h.

- Hide the generic DataAt/SetDataAt accessors and replace them by
  dedicated accessors. Use the common lower_case naming scheme for
  these.
- Shuffle around definitions in js-regexp.h s.t. they are in a
  meaningful order.
- Dedupe the source/flags accessors - these fields are stored both
  on the instance and on the data array. We keep only accessors for
  the instance. Previously, these were disambiguated through naming
  oddities (e.g. Pattern() returned data->source).

Change-Id: I3d53c8b095f0d59621ff779608438f7fa5e8c92a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3193534
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77138}

Bug: v8:7790
Change-Id: I5439fa0a8ecfab8f407e2aeeaffd4b4f656cdfe1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3192674
Commit-Queue: Georg Neis <neis@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77137}

Change-Id: Ieb986b9e17103ec24ca98a7ab44e7bef9caa6bfa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3194013Reviewed-by: ji qiu <qiuji@iscas.ac.cn>
Commit-Queue: ji qiu <qiuji@iscas.ac.cn>
Cr-Commit-Position: refs/heads/main@{#77136}

This is a reland of 7d849870

Original change's description:
> [regexp] Reorganize and deduplicate in the regexp parser
>
> The parser is organized in a somewhat tricky way s.t. it can be
> hard to map the implementation back to the specified grammar.
>
> In particular, the logic for CharacterClassEscape, ClassEscape,
> and CharacterEscape was implemented twice - once inside a character
> class, once outside.
>
> This CL refactors related logic to have only a single implementation.
>
> As a drive-by, fix one related inconsistency related to \k inside
> a character class.
>
> Fixed: v8:10602
> Change-Id: I5858840159694fa6f8d1aa857027db80754e3dfd
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3178966
> Reviewed-by: Mathias Bynens <mathias@chromium.org>
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#77114}

Fixed: v8:10602,chromium:1253976
Change-Id: I9e7cc6a34d3be06e1a68895775aa50b0eee78c57
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3193531Reviewed-by: Mathias Bynens <mathias@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77135}

Rolling v8/base/trace_event/common: https://chromium.googlesource.com/chromium/src/base/trace_event/common/+log/715537d..68d8169

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/a76920d..ecb990f

Rolling v8/third_party/aemu-linux-x64: 6Vr4alb5803W2n5PbA5ZLwCcJznKdmFX1pDoy_5hfOAC..e_KiIcYNB7sHa2eqRBhqVoR_Mmg2Q7nqmzRCXzegWQAC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/2146b04..5afc365

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/ce514ad..764c927

Rolling v8/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest/+log/e4717df..ab36804

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/2e80143..278dd91

Rolling v8/tools/luci-go: git_revision:e9585787c808e21d6eaa2c7d7a928dbc19999172..git_revision:a373a19da0fbbbe81b2b684e3797260294393e40

Rolling v8/tools/luci-go: git_revision:e9585787c808e21d6eaa2c7d7a928dbc19999172..git_revision:a373a19da0fbbbe81b2b684e3797260294393e40

Rolling v8/tools/luci-go: git_revision:e9585787c808e21d6eaa2c7d7a928dbc19999172..git_revision:a373a19da0fbbbe81b2b684e3797260294393e40

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

Change-Id: I4765817d9f51dd6f7d9a600799098134eee1a8fb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3192297Reviewed-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@{#77134}

This reverts commit 649e9113.

Reason for revert: Abseil was reverted due to gcc failures, so reverting this first. When upstream fixes land, we can reland abseil and this change.

Original change's description:
> [bazel] Adds support to abseil
>
> No-Try: true
> Bug: v8:11006
> Change-Id: Ie2758849fcb8b19ae34289d3e762094b062f2a5c
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3168644
> Reviewed-by: Dan Elphick <delphick@chromium.org>
> Commit-Queue: Victor Gomes <victorgomes@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76938}

Bug: v8:11006
Change-Id: Iedde555df8bc736cf922b0d9f51b0a78f7e1db49
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3192192
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77133}

This reverts commit 214ef26d.

Reason for revert: gcc bots are failing https://crbug.com/v8/12248

Original change's description:
> Reland "[DEPS] Add abseil to deps"
>
> This is a reland of 3c49308a
>
> Original change's description:
> > [DEPS] Add abseil to deps
> >
> > Add a dependency on the chromium abseil-cpp subdir mirror.
> >
> > Bug: v8:11006
> > Change-Id: Icaad757269d27c65bc368ed539f84c5bb79ee62d
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2464940
> > Commit-Queue: Leszek Swirski <leszeks@chromium.org>
> > Reviewed-by: Yang Guo <yangguo@chromium.org>
> > Reviewed-by: Victor Gomes <victorgomes@chromium.org>
> > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#70786}
>
> Bug: v8:11006
> Change-Id: I2befd2eadd11d485eee47c68119d93be9a3e1655
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2504257
> Commit-Queue: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Adam Klein <adamk@chromium.org>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Reviewed-by: Hannes Payer <hpayer@chromium.org>
> Reviewed-by: Victor Gomes <victorgomes@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#76897}

Bug: v8:11006
Change-Id: Icdc7ed108a49fa33a0233a1af8ba8e4d9daadfd8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3191392Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77132}

Refactor code such that the linear algorithm is actually executed
outside the method for the fixpoint iteration. Also added a CHECK
which verifies that iterating the ephemerons one more time results in
no further marked objects.

Also force another iteration when ProcessMarkingWorklist() processed
some object. In such cases we need to re-process all ephemerons
otherwise ephemeron semantics might be broken.

Bug: chromium:1252918
Change-Id: I9123dda50e34227a04825fd8b3172368286cc76f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3190100
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77131}

Bug: v8:12244,v8:12245
Change-Id: I81cf283f4b38930c74c1e4508711af0d4702128d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3187273Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77130}

Bug: v8:12244
Change-Id: I7ea68dd74a376221631d7f56b4a012207f68a1ec
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3182899Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77129}

As now struct and array types are generated arbitrary,
struct.set should only pick mutable fields.

Bug: v8:11954, chromium:1253031
Change-Id: Ic248e93b09ffefd4f5547e102c8ea4d56bb2bd90
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3186439
Commit-Queue: Maria Tîmbur <mtimbur@google.com>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77128}

This reverts commit e47f9200.

Reason for revert: https://ci.chromium.org/p/v8/builders/ci/V8%20Win64%20-%20msvc/19428?

Original change's description:
> cppgc: Inline allocation fast path across api boundary
>
> Bug: chromium:1239030, chromium:1056170
> Change-Id: I4a559027e63ebbd99e51344aa659d4fb284df88f
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3190094
> Commit-Queue: Omer Katz <omerkatz@chromium.org>
> Reviewed-by: Anton Bikineev <bikineev@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#77124}

Bug: chromium:1239030, chromium:1056170
Change-Id: I13b6f16449361a7fb9f1cac5b2e0938632df6518
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3191210
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77127}

Because there can be fewer function signatures than there are
functions a new ForceAddSignature function was added which does
not deduplicate.


Bug: v8:11954
Change-Id: Ib028de47962dd1e797ead1b1f05a4e6815029487
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3186431
Commit-Queue: Maria Tîmbur <mtimbur@google.com>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77126}

This reverts commit 7d849870.

Reason for revert: Will block roll. Broke error message tests upstream:

https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Blink%20Win/6635/overview


Original change's description:
> [regexp] Reorganize and deduplicate in the regexp parser
>
> The parser is organized in a somewhat tricky way s.t. it can be
> hard to map the implementation back to the specified grammar.
>
> In particular, the logic for CharacterClassEscape, ClassEscape,
> and CharacterEscape was implemented twice - once inside a character
> class, once outside.
>
> This CL refactors related logic to have only a single implementation.
>
> As a drive-by, fix one related inconsistency related to \k inside
> a character class.
>
> Fixed: v8:10602
> Change-Id: I5858840159694fa6f8d1aa857027db80754e3dfd
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3178966
> Reviewed-by: Mathias Bynens <mathias@chromium.org>
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#77114}

Change-Id: Ic7404d6c9f0e6ea51e8cd8f1ab672856dca0c637
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3190692
Auto-Submit: Shu-yu Guo <syg@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@{#77125}

Bug: chromium:1239030, chromium:1056170
Change-Id: I4a559027e63ebbd99e51344aa659d4fb284df88f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3190094
Commit-Queue: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77124}

Update outdated comments and address TODO about kDataIndex.

Change-Id: Ibf6e91857c0430cb9a598c98933db63ac42a1d1f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3189197
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77123}

When preparing to take a heap snapshot for the devtools, V8 uses
CollectAllAvailableGarbage, which runs 2 to 7 rounds of garbage
collection, depending on whether weak callbacks indicate that further
rounds might be beneficial. Depending on how many rounds of GC run,
varying amounts of bytecode and baseline code may be flushed, leading to
inconsistent behavior and underreporting the amount of memory used by
bytecode and baseline code. In this change, I propose that bytecode
should not increase in age during these collections, so that the
resulting snapshot is a better indication of actual memory usage.

Change-Id: I644be37833f85bb58e2e2fad5da62949cbdc9bef
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3182885Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#77122}

Bug: v8:12257
Change-Id: I0c78e692a1712082818e8af32593b0489c4e18ff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3190103
Commit-Queue: Almothana Athamneh <almuthanna@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77121}