We temporarily disable fuzzing for wasm-gc until we update the fuzzer
to the isorecursive hybrid type system.

Bug: chromium:1291959
Change-Id: I2238c37bc49cbac2bf1c4085815a2283db982ab3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3423782Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78869}

For backwards compatibility, we do not impose this restriction on
nominal modules.

Bug: v8:7748
Change-Id: I42c4dc824fc9824280527522b05fa3bf68c8929b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3422638Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78868}

Bug: v8:12590
Change-Id: I621bed34445a245cd077f06817496c1539454c5d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3423784
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78867}

{NativeModuleSerializer::WriteCode} does always return {true}, hence
remove the return value to avoid dead code in callers.

R=ahaas@chromium.org

Bug: v8:12425
Change-Id: I3c07829f327fc039b3baffdec3f9f6637adc2861
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3425357Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78866}

Bug: v8:7748
Change-Id: If5027ac632438937407aeea0bb266b58cb1cbba2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3422633Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78865}

Previously we'd predict exceptions thrown in [[Reject]] handlers as
always caught (by PromiseRejectReactionJob), but that's not what is
actually specified in ECMAScript. The PromiseRejectReactionJob will turn
any exception thrown into a promise rejection just like we do in the
case of PromiseFulfillReactionJob, and so the catch prediction should
match that behavior.

Fixed: chromium:1290861
Change-Id: Id992708b009666da7c6bf1b6e3cf30752ca0a227
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3423775
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78864}

This reverts commit 7ddacd68.

Reason for revert: GC Stress failures: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20GC%20Stress%20-%20custom%20snapshot/40615/overview

Original change's description:
> [web snapshot] Dehandlify more parts of the deserializer
>
> - Use Heap::AddGCEpilogueCallback to update often accessed FixedArrays
>   in the WebSnapshotDeserializer.
> - ReadValue returns now a raw value to avoid handle creation in more
>   cases
> - Drop representation support for now in ReadValue
> - Avoid a few more handles when setting up objects
>
> Bug v8:11525
>
> Change-Id: I6955b56887834bc655bdaa9c390016d9a17db82d
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3416242
> Reviewed-by: Marja Hölttä <marja@chromium.org>
> Commit-Queue: Camillo Bruni <cbruni@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#78862}

Change-Id: I44385ac118707ec60aa8c76e219b387bc3ba322e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3423781
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Owners-Override: Leszek Swirski <leszeks@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@{#78863}

- Use Heap::AddGCEpilogueCallback to update often accessed FixedArrays
  in the WebSnapshotDeserializer.
- ReadValue returns now a raw value to avoid handle creation in more
  cases
- Drop representation support for now in ReadValue
- Avoid a few more handles when setting up objects

Bug v8:11525

Change-Id: I6955b56887834bc655bdaa9c390016d9a17db82d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3416242Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78862}

This reverts commit 7f26cbd2.

Reason for revert: Issue 1292333: DCHECK failure in op->IsStackSlot() || op->IsFPStackSlot() in code-generator-x64.cc

Original change's description:
> [fastcall] Add Wasm entry for Fast API calls
>
> Allow Wasm to generate calls directly to Fast API C functions.
> This massively reduces the overhead of these calls (~300%).
> Currently options parameter is not supported.
>
> This is a reland of
> https://chromium-review.googlesource.com/c/v8/v8/+/3364356
> with a fix to a data race.
>
> Bug: chromium:1052746
> Change-Id: I8c1c255419496d03a94ec2b443329842469586d5
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3398394
> Reviewed-by: Maya Lekova <mslekova@chromium.org>
> Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Commit-Queue: Paolo Severini <paolosev@microsoft.com>
> Cr-Commit-Position: refs/heads/main@{#78714}

Bug: chromium:1052746
Change-Id: Ieb3f6f836bd604b0e4c5801f082997831eb7ac26
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3426610
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78861}

Since inheritance depth of every type is known in the isorecursive
hybrid type system, rtts with depth are removed. This enables
simplification of type checks in Liftoff and Turbofan, as well as
decoding of object allocation instructions.

Bug: v8:7748
Change-Id: I6b52579b584191d92644de1c6e805d9f054641d3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3422626Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78860}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/b2cde2a..eaca789

Rolling v8/buildtools/third_party/libunwind/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind/+log/676f5e9..d0ad43c

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

Change-Id: I22e5012fd5245b7970191584cf5985be13d01843
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3425203
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#78859}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/2772370..b2cde2a

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

Change-Id: I80306ea6a3403005e79081726685704c7ccb356a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3425202
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#78858}

Those versions are broken, and sporadically reset the PKRU register on
context switches (observed on ChromeOS only). This was fixed by this
patch:
https://lore.kernel.org/all/20210623121456.399107624@linutronix.de/

Thus we detect the running kernel version (once per process), and
disable PKU if we detect a potentially broken kernel version.

R=jkummerow@chromium.org

Bug: v8:11974
Change-Id: Ib5158b4cf51d5c2811678b1b7dcc1494bc0ff46a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3417440Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78857}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/3a3da2d..2772370

Rolling v8/buildtools/third_party/libunwind/trunk: https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libunwind/+log/7246413..676f5e9

Rolling v8/third_party/android_ndk: https://chromium.googlesource.com/android_ndk/+log/401019b..9644104

Rolling v8/third_party/android_sdk/public: Yw53980aNNn0n9l58lN7u0wSVmxlY0OM1zFnGDQeJs4C..7EcXjyZWkTu3sCA8d8eRXg_aCBCYt8ihXgxp29VXLs8C

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/d90eeee..6b30850

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/289dedd..8dd74d4

Rolling v8/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest/+log/0b7798b..28e1da2

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

Change-Id: Iaedd20189695738095ec8353654bdab1a4c96f87
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3425201
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#78856}

They're failing due to Inf/NaN differences after the latest clang roll,
skipping for now to keep the tree green. A follow-up CL will likely want
to broaden the expectations for these tests to allow both Inf & NaN in
certain cases.

Bug: v8:12588
Change-Id: I8055b67077fc67cc65246a89a4b4949d8838829e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3425660
Commit-Queue: Adam Klein <adamk@chromium.org>
Auto-Submit: Adam Klein <adamk@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78855}

This is a reland #3. The fixes were landed separately.

Perf Sheriffs: this CL might regress some benchmarks while improving
the others.

Bug: v8:11880
Change-Id: I8ed5bf59360649718960dc34c06015ee6ff1532a
Cq-Include-Trybots: luci.v8.try:v8_android_arm64_compile_dbg
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3422643Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78854}

Change-Id: I88ea54d02bb6600acc1105dce112285c68861007
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3423667Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78853}

No-Try: true
Bug: chromium:1292016
Change-Id: I9c3e5271bad6e05342840fafc0e405d5d4e65efc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3424482Reviewed-by: Almothana Athamneh <almuthanna@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78852}

Change-Id: Ie62c4d46b767f1dcf70e8e75a30b5fc4d90ac295
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3424897
Auto-Submit: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78851}

Runtime_HasProperty already does the right thing; this CL is directing
more cases to it.

Bug: v8:12580
Change-Id: I16ae6099fa9781ecc663085e87a7fc59abd10d02
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3422639Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78850}

This reverts commit e4311846.

Reason for revert: Breaking gc-stress bots  https://cr-buildbucket.appspot.com/build/8823780450691075553 

Original change's description:
> Reland "[counters] Improve v8.execute histogram timer"
>
> This is a reland of 69564827
>
> Original change's description:
> > [counters] Improve v8.execute histogram timer
> >
> > - Mark uncommon timer-paths as V8_NOINLINE
> > - Add explicit LongTaskNestedTimedHistogramScope class
> > - Use explicit LongTaskRecordMode enum
> > - Mark a few more isolate methods as const
> > - Add more timer scopes:
> >   - Accessors::ArrayLengthSetter
> >   - v8::NewContext
> >
> > Bug: v8:12498, chromium:1275056
> > Change-Id: I7896ee341c3c3a1fd5acf8f3f59347ff01dda9c0
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3338258
> > Reviewed-by: Marja Hölttä <marja@chromium.org>
> > Auto-Submit: Camillo Bruni <cbruni@chromium.org>
> > Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> > Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
> > Cr-Commit-Position: refs/heads/main@{#78372}
>
> Bug: v8:12498, chromium:1275056
> Change-Id: Ic153f1235d83340722fbd1053d2eba41133364d2
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3338700
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Camillo Bruni <cbruni@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#78843}

Bug: v8:12498, chromium:1275056
Change-Id: Id5702025320b146e1b5b032650ffe3799c38300e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3424491
Auto-Submit: Camillo Bruni <cbruni@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78849}

We can now specify the trials for clusterfuzz using the file
clusterfuzz_trials_config.json. There is also a presubmit check
to make sure that it is formatted correctly.

Change-Id: Iafb7063b63b1daeb7653830542d13b419cf187d6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3416191Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Almothana Athamneh <almuthanna@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78848}

This reverts commit 517ed4ad.

Reason for revert: There still seems to be an issue on V8 Win msvc related to this CL (https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win64%20-%20msvc/20568/overview).

Original change's description:
> Reland "[Torque] Generalize Torque literals to larger size"
>
> Previously, literals in Torque were stored as double values, which
> made it impossible to precisely represent 64 bit integer values.
> This CL replaces the old literal expression with an integer and
> floating point literal expression that are unbounded in size. We
> allow implicit conversion of these literals to arbitary integer
> and floating point types respectively and insert a corresponding
> bounds check into generated CSA.
>
> Changes in the reland: Simplified IntegerLiteral to single digit.
>
> Bug: v8:7793, chromium:1289282
> Change-Id: I31c762c2f31165c7a1d0b07842b764e5851ce189
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3406750
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#78811}

Bug: v8:7793, chromium:1289282
Change-Id: I818cec9625fbd827a4a30088d8c8b759fb6c50d7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3424484
Owners-Override: Nico Hartmann <nicohartmann@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78847}

Change-Id: Ie596dbb2041456e334d5cd7956a0717ccc7005c6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3420832Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/main@{#78846}

This reverts commit a865d16b.

Reason for revert: breaks tsan and gc-stress

Original change's description:
> [wasm] Resume suspender on resolved promise
>
> Implement the WasmResume builtin, which resumes a wasm suspender
> when the corresponding JS promise resolves.
>
> Drive-by 1: Fix detection of empty stacks in the stack frame iterator.
> Drive-by 2: Add a stack ID for better tracing.
>
> R=​ahaas@chromium.org
> CC=​​fgm@chromium.org
>
> Bug: v8:12191
> Change-Id: Ifa3f00c4259f802292b04d426c739e9b551f87b9
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3420827
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#78842}

Bug: v8:12191
Change-Id: I3352c8b1dcc8d99e1bd782a09276add219a3ecda
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3424489
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Owners-Override: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78845}

Enable compaction of objects in the map space during a full GC. So far
pages in the map space were never chosen as evacuation candidates. We
might be able to improve memory usage a bit by also compacting map
space. Luckily for us the marking barrier was already emitted when
updating an object's map word.

This CL adds a new flag FLAG_compact_map_space to easily turn off this
feature again. For now we keep this flag (and with that map space
compaction) disabled by default. So GC behavior does not change with
this CL.

Bug: v8:12578
Change-Id: I99c0cd826bd824af5383fb3ce64796693a59d1ff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3404775Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78844}

This is a reland of 69564827

Original change's description:
> [counters] Improve v8.execute histogram timer
>
> - Mark uncommon timer-paths as V8_NOINLINE
> - Add explicit LongTaskNestedTimedHistogramScope class
> - Use explicit LongTaskRecordMode enum
> - Mark a few more isolate methods as const
> - Add more timer scopes:
>   - Accessors::ArrayLengthSetter
>   - v8::NewContext
>
> Bug: v8:12498, chromium:1275056
> Change-Id: I7896ee341c3c3a1fd5acf8f3f59347ff01dda9c0
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3338258
> Reviewed-by: Marja Hölttä <marja@chromium.org>
> Auto-Submit: Camillo Bruni <cbruni@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#78372}

Bug: v8:12498, chromium:1275056
Change-Id: Ic153f1235d83340722fbd1053d2eba41133364d2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3338700Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78843}

Implement the WasmResume builtin, which resumes a wasm suspender
when the corresponding JS promise resolves.

Drive-by 1: Fix detection of empty stacks in the stack frame iterator.
Drive-by 2: Add a stack ID for better tracing.

R=ahaas@chromium.org
CC=​fgm@chromium.org

Bug: v8:12191
Change-Id: Ifa3f00c4259f802292b04d426c739e9b551f87b9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3420827Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78842}

The contents of CodeDataContainer::code_cage_base field was
accidentally written during serialization while zeros should
have been written instead.

Bug: v8:11880
Change-Id: Ib1d66d2fe8cceace19f4feb57950838bfbc89efa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3422642
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Auto-Submit: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78841}

This reverts commit 4b8f1b1c.

Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20TSAN%20-%20stress-incremental-marking/6292/overview

Original change's description:
> Reland "[heap] Support client-to-shared refs in Code objects"
>
> This is a reland of 12e46091
>
> Original change's description:
> > [heap] Support client-to-shared refs in Code objects
> >
> > Support references from code objects in the client heaps to shared heap objects. Such references are stored in a remembered set during marking, which is later used for updating pointers.
> >
> > Bug: v8:11708
> > Change-Id: I8aeb508ddd14514ca65fa5acf3030dd8c2040168
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3401588
> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> > Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> > Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> > Cr-Commit-Position: refs/heads/main@{#78819}
>
> Bug: v8:11708
> Change-Id: I47bcf44b452fcffe8675fba03244b736ede14247
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3422630
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#78838}

Bug: v8:11708
Change-Id: I0ec57ad4d7dccf2271ff8c1048762cf2c1b97a42
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3424477
Auto-Submit: Nico Hartmann <nicohartmann@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Owners-Override: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78840}

Port 99a5bb74

Original Commit Message:

    CallFunction is only called for targets that are checked not to be class
    constructors, therefore we can remove the check for class constructors
    from CallFunction.

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

Change-Id: I327c075bdd2e561236820818c2a26e8fc4ed6522
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3421506Reviewed-by: Patrick Thier <pthier@chromium.org>
Commit-Queue: Milad Farazmand <mfarazma@redhat.com>
Reviewed-by: Joran Siu <joransiu@ca.ibm.com>
Reviewed-by: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/main@{#78839}

This is a reland of 12e46091

Original change's description:
> [heap] Support client-to-shared refs in Code objects
>
> Support references from code objects in the client heaps to shared heap objects. Such references are stored in a remembered set during marking, which is later used for updating pointers.
>
> Bug: v8:11708
> Change-Id: I8aeb508ddd14514ca65fa5acf3030dd8c2040168
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3401588
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#78819}

Bug: v8:11708
Change-Id: I47bcf44b452fcffe8675fba03244b736ede14247
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3422630Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78838}

This reverts commit e7ffb257.

Reason for revert: speculative revert because it might be causing 
these failures: https://ci.chromium.org/p/chromium/builders/ci/Deterministic%20Linux/32597

Original change's description:
> [ext-code-space] Enable external code space on x64 and desktop arm64
>
> This is a reland #2. The fixes were landed separately.
>
> Perf Sheriffs: this CL might regress some benchmarks while improving
> the others.
>
> Bug: v8:11880
> Change-Id: I397aef5ad5cce42ef189ee10b482805c90ec925a
> Cq-Include-Trybots: luci.v8.try:v8_android_arm64_compile_dbg
> Cq-Include-Trybots: luci.v8.try:v8_linux64_ubsan_rel_ng
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3417000
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Commit-Queue: Igor Sheludko <ishell@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#78817}

Bug: v8:11880
Change-Id: I74ec916267626433a060aa1b7804a4bfffeff269
Cq-Include-Trybots: luci.v8.try:v8_android_arm64_compile_dbg
Cq-Include-Trybots: luci.v8.try:v8_linux64_ubsan_rel_ng
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3422640
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78837}

Currently the reconstruction of the shared heap object cache for testing
incorrectly includes the terminating undefined value. Unlike the RO cache
reconstruction, which does not change, the shared heap object cache may be
extended by serializing the live Isolate during testing, so it should skip the
original terminating undefined.

Bug: v8:12007, v8:12584
Change-Id: If73b865567ed7d5b658506e15b1dc8d14bd755d6
Cq-Include-Trybots: luci.v8.try:v8_linux64_gc_stress_custom_snapshot_dbg_ng
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3421726
Auto-Submit: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78836}

- Use more HeapObject instead of Object
- Use raw instance_type

Bug: v8:11525
Change-Id: I5f1b8ea95fa14acc9c94555a95e8586f3c7e8888
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3422637Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78835}

Bug: v8:11263
Change-Id: I4d7d614666ff846740e1bfc1146bd82f08f6a739
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3420830Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78834}

The Descriptor of Builtin defines the allocated machine registers for
its parameters. However, when an argument is in
InterpreterAccumulatorRegister, the Descriptor might require another
machine register holding the the value of this argument and result in a
redundant register-to-register move. This CL avoids this move by
allocating a same register for such argument. It also changes the
assigned registers for Typeof, KeyedLoadIC and KeyedHasIC to align the
use in Baseline Builtins.

Change-Id: I14004d8e44c4c45f2a1bea2c09b06160f615709b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3416544Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78833}

Change-Id: I7cde42eb5c3a2df81950cc622dd9b3fa3f74caa3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3422634
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78832}

This extracts all {dlsym} calls to a single function which is called
once during initialization.

R=jkummerow@chromium.org

Bug: v8:11974
Change-Id: I068f180e26b92d72e3e1e0ba7c6232c760f202e8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3417439Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78831}

We can avoid a pointer deref if the ValueSerializer is inlined in
WebSnapshotDeserializer.

Bug: v8:11525
Change-Id: I92d8cac37af3fdbe04a66465f97761bf5a9fd705
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3417433Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78830}