Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/92c40db..01b3fe4

Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/98881a1..b6526d9

Rolling v8/buildtools/linux64: git_revision:f5f465b52e5df6d4de9fbe67cc79f1914ba4dbfc..git_revision:e002e68a48d1c82648eadde2f6aafa20d08c36f2

Rolling v8/third_party/aemu-linux-x64: uqYfh08DTmvjUgXl-HxNY1ptIb0KpyuY0I9MFaci9-AC..GcTt9uPsoI1ThLZlKalBAGZLijn8zwDw_BQtJwWpS08C

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/888c272..b8b4d61

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/655afeb..8ca189d

Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/8cd0fc1..e84c9a3

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/4c43492..952382f

Rolling v8/tools/luci-go: git_revision:1a022d3a4c50be4207ee93451255d71896416596..git_revision:576741d3eed0fa33971fb34cd823650e6f5b47fb

Rolling v8/tools/luci-go: git_revision:1a022d3a4c50be4207ee93451255d71896416596..git_revision:576741d3eed0fa33971fb34cd823650e6f5b47fb

Rolling v8/tools/luci-go: git_revision:1a022d3a4c50be4207ee93451255d71896416596..git_revision:576741d3eed0fa33971fb34cd823650e6f5b47fb

TBR=machenbach@chromium.org,tmrts@chromium.org,v8-waterfall-sheriff@grotations.appspotmail.com

Change-Id: If1d65d05063942b39f6986df8472d5ae6fd241c5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2520379Reviewed-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@{#70978}

Integer splats (especially for sizes < 32-bits) does not directly
translate to a single instruction on x64. We can do better for special
values, like 0, which can be lowered to `xor dst dst`. We do this check
in the instruction selector, and emit a special opcode kX64S128Zero.

Also change the xor operation for kX64S128Zero from xorps to pxor. This
can help reduce any potential data bypass delay (search for this on
agner's microarchitecture manual for more details.). Since integer
splats are likely to be followed by integer ops, we should remain in the
integer domain, thus use pxor.

For i64x2.splat the codegen goes from:

  xorl rdi,rdi
  vmovq xmm0,rdi
  vmovddup xmm0,xmm0

to:

  vpxor xmm0,xmm0,xmm0

Also add a unittest to verify this optimization, and necessary
raw-assembler methods for the test.

Bug: v8:11093
Change-Id: I26b092032b6e672f1d5d26e35d79578ebe591cfe
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2516299Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70977}

Add a new function on the public API to allow serializing a function to
a string using the built-in toString() implementation, allowing
serialization without worrying about untrusted author script overriding
the toString() implementation. This is similar in nature to
Object::ObjectProtoToString() (but that only returns "[object Function]"
for any passed function).

Add tests for the same.

Bug: chromium:1144841
Change-Id: Ie4c29b870034c0817c23bf91f9424f956098823d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2514768Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Devlin <rdevlin.cronin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70976}

Power 9 offers new Vector Insert instructions which now can be used
to implement Replace Lane opcodes. Also changed the input
register to be the same as output.

Change-Id: Ie71b4d44bf715d2f619ee55144ef18e9e727ed9a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2518617Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#70975}

This reverts commit c6c86944.

Reason for revert:
https://ci.chromium.org/p/v8/builders/ci/V8%20Blink%20Linux%20Debug/6762
https://test-results.appspot.com/data/layout_results/V8_Blink_Linux_Debug/6762/blink_web_tests%20%28retry%20shards%20with%20patch%29/layout-test-results/results.html

Original change's description:
> [wasm] Fix code offset after module cache hit
>
> If the module cache was hit, we didn't set the code offset in the
> decoded module. Hence it was reported as 0 to the DevTools frontend,
> leading to subsequent errors.
> Note that this error can only happen if multiple isolates share the same
> module, which we cannot easily test in v8. Sharing within a single
> isolate is implemented via the script cache, so we won't report another
> script via CDP.
>
> R=​thibaudm@chromium.org
>
> Bug: chromium:1114143
> Change-Id: I3218a3b12cf5be09d685e3f371f858ab799cef80
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2519560
> Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#70967}

TBR=clemensb@chromium.org,thibaudm@chromium.org

Change-Id: I61528d5000d703ce36ad2ba88cae043220f5f9f5
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:1114143
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2519569Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70974}

This is a reland of adceb459
Redesign test to not be OS dependent.

Original change's description:
> [x64][ia32] Add stack overflow check in InvokePrologue
>
> In case of no arguments adaptor frame, we massage the arguments in InvokePrologue pushing undefined objects if the actual argument count is below the parameter count. This CL adds a stack overflow check before pushing these undefined objects to the stack.
>
> Change-Id: I2a88bf6fdfd17958f6f6884143a67d50ea842fd2
> Bug: v8:10201
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2491039
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Commit-Queue: Victor Gomes <victorgomes@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#70927}

Bug: v8:10201
Change-Id: Ifab3413b748cdf3bb998a5080cd1fcb3b67a737b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2517921Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70973}

ICU68-1 change the output skeleton format. So we need to change
resolvedOptions code for 68 migration.

Chromium roll
https://chromium-review.googlesource.com/c/chromium/src/+/2474093

Bug: v8:10945
Change-Id: I3b2c7fbe8abb22df8fa51287c498ca3245b8c55b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2477431
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70972}

Change-Id: I81ace5b6abf883c80bea1fada94a66888b16745a
Bug: chromium:1144672, v8:10201
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2512923Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70971}

Rename-only CL: Rename "code kind" to "code like".

The reason is CL feedback when using this feature, and a desire for
consistency across V8 + Blink. An additional benefit would be to
disambiguate from the v8::internal::CodeKind type, which is unrelated to
any of this.

Original CL: crrev.com/c/v8/v8/+/2339618
CL whose review prompted this change: crrev.com/c/2340905

Bug: chromium:1096017
Change-Id: Id59016fc2906ab6cd1414e598338b3963811b92f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2509598Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Daniel Vogelheim <vogelheim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70970}

Convert Profile, CodeMap and their helpers to ES6 classes.
Code cleanup will happen in a separate step.

Bug: v8:10667
Change-Id: Icfb28f6d9ef7f00efba93b347fdf210a9af36a49
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2509591
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70969}

Bug: v8:11102
Change-Id: I40ce923a42097bf76a4b53c61bab1ef983523f64
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2519557Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Almothana Athamneh <almuthanna@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70968}

If the module cache was hit, we didn't set the code offset in the
decoded module. Hence it was reported as 0 to the DevTools frontend,
leading to subsequent errors.
Note that this error can only happen if multiple isolates share the same
module, which we cannot easily test in v8. Sharing within a single
isolate is implemented via the script cache, so we won't report another
script via CDP.

R=thibaudm@chromium.org

Bug: chromium:1114143
Change-Id: I3218a3b12cf5be09d685e3f371f858ab799cef80
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2519560Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70967}

The various compilation caches are tricky to understand. Hopefully
some addtl. documentation helps.

Bug: v8:8888
Change-Id: I20f2778b5548fcc38724aca600ccf770c240758d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2516476
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70966}

The new api removes the unused CompileOptions argument.

Change-Id: Ie3c48cda5247da9ce87d70a90b7ab9c43d5e8e37
Bug: chromium:1061857
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2498698Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70965}

Port: 958d8e9f

Bug: v8:10201

Change-Id: I27d29f2a1f1d5f659d558b5fd776b88474d9b140
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2513867
Auto-Submit: Liu yu <liuyu@loongson.cn>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70964}

.. by the runtime flag --enable-experimental-regexp-engine.

Introduced in https://chromium-review.googlesource.com/c/v8/v8/+/2461244

Tbr: neis@chromium.org
Bug: v8:10765
Change-Id: Ic32464ced7e5ddb4c31fe165eddb6b9d19260efc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2516920
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70963}

Timeouts occurred in test-concurrent-feedback-vector/CheckLoadICStates
because the main thread could enter "handshaking" mode precisely at
the moment when the worker thread successfully saw all states.
The main thread would miss this, and end up waiting forever on
a signal from the worker thread.

Bug: v8:11082
Change-Id: I0441785d908c5e27562a3620bb2195483727f118
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2519553
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70962}

This reverts commit 3c4e434f.

Reason for revert: Fails noavx tests: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20-%20debug/34613

Original change's description:
> [wasm-simd][x64] Optimize pmin/pmax and add horiz for AVX
>
> The AVX versions of these instructions can take 3 operands, so we don't
> need to force dst == src.
>
> Bug: v8:9561
> Change-Id: If346a05f7d599bf0d636263cafc3bc823c3b8452
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2515337
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#70958}

TBR=clemensb@chromium.org,zhin@chromium.org

Change-Id: I5fcdd2e51d418cb32a1b1e2bec7c0dff19f29154
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9561
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2519558Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70961}

This reverts commit 6e780005.

Reason for revert: GN roll in v8/buildtools is causing an MB error - https://bugs.chromium.org/p/v8/issues/detail?id=11102

Original change's description:
> Update V8 DEPS.
>
> Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/92c40db..ef5fe70
>
> Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/98881a1..95fa84e
>
> Rolling v8/buildtools/linux64: git_revision:e002e68a48d1c82648eadde2f6aafa20d08c36f2..git_revision:f5f465b52e5df6d4de9fbe67cc79f1914ba4dbfc
>
> Rolling v8/third_party/aemu-linux-x64: uqYfh08DTmvjUgXl-HxNY1ptIb0KpyuY0I9MFaci9-AC..QCu1udNpe84cj5K2ZaTcAwnDUyjm45HgGJgtnoFkp7gC
>
> Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/888c272..c5bd411
>
> Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/655afeb..5bdfcd8
>
> Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/8cd0fc1..e84c9a3
>
> Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/4c43492..c37ae57
>
> Rolling v8/tools/luci-go: git_revision:1a022d3a4c50be4207ee93451255d71896416596..git_revision:576741d3eed0fa33971fb34cd823650e6f5b47fb
>
> Rolling v8/tools/luci-go: git_revision:1a022d3a4c50be4207ee93451255d71896416596..git_revision:576741d3eed0fa33971fb34cd823650e6f5b47fb
>
> Rolling v8/tools/luci-go: git_revision:1a022d3a4c50be4207ee93451255d71896416596..git_revision:576741d3eed0fa33971fb34cd823650e6f5b47fb
>
> TBR=machenbach@chromium.org,tmrts@chromium.org,v8-waterfall-sheriff@grotations.appspotmail.com
>
> Change-Id: I2395c6577e023d2aa48cf15b1f88e0207bd3f381
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2518492
> 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/master@{#70959}

TBR=machenbach@chromium.org,v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com,tmrts@chromium.org,v8-waterfall-sheriff@grotations.appspotmail.com

Change-Id: I2f86e73d2991a2d4617b67c6646d2e7b5a83b50b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2518672Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70960}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/92c40db..ef5fe70

Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/98881a1..95fa84e

Rolling v8/buildtools/linux64: git_revision:e002e68a48d1c82648eadde2f6aafa20d08c36f2..git_revision:f5f465b52e5df6d4de9fbe67cc79f1914ba4dbfc

Rolling v8/third_party/aemu-linux-x64: uqYfh08DTmvjUgXl-HxNY1ptIb0KpyuY0I9MFaci9-AC..QCu1udNpe84cj5K2ZaTcAwnDUyjm45HgGJgtnoFkp7gC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/888c272..c5bd411

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/655afeb..5bdfcd8

Rolling v8/third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/8cd0fc1..e84c9a3

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/4c43492..c37ae57

Rolling v8/tools/luci-go: git_revision:1a022d3a4c50be4207ee93451255d71896416596..git_revision:576741d3eed0fa33971fb34cd823650e6f5b47fb

Rolling v8/tools/luci-go: git_revision:1a022d3a4c50be4207ee93451255d71896416596..git_revision:576741d3eed0fa33971fb34cd823650e6f5b47fb

Rolling v8/tools/luci-go: git_revision:1a022d3a4c50be4207ee93451255d71896416596..git_revision:576741d3eed0fa33971fb34cd823650e6f5b47fb

TBR=machenbach@chromium.org,tmrts@chromium.org,v8-waterfall-sheriff@grotations.appspotmail.com

Change-Id: I2395c6577e023d2aa48cf15b1f88e0207bd3f381
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2518492Reviewed-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@{#70959}

The AVX versions of these instructions can take 3 operands, so we don't
need to force dst == src.

Bug: v8:9561
Change-Id: If346a05f7d599bf0d636263cafc3bc823c3b8452
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2515337Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70958}

`vperm` indices are taken from the five least significant bits
of the input byte. We need to make sure bigger values
are saturated to 31 to make vperm select 0 as the output.

Change-Id: I27ad77684b99f32a7fd7f690dec0b127be3ad9e7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2518343Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#70957}

It's shipped since M76.

Bug: v8:9060
Change-Id: Ifb107f3ef77ab803d5c0ce34f0a31ac33088c41a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2510610
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70956}

It's shipped since M72.

Bug: v8:8101
Change-Id: I80856b9e1acfb6e434f20b6174e864f8c4e2896a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2509945
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70955}

It's shipped since M64.

Bug: v8:6693
Change-Id: Ifc547c0036dd7e5f7bab9bcb169abee0157f73b3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2509943
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70954}

It's shipped since M63.

Bug: v8:5785
Change-Id: Iaa591890edc560bc58b7a6b18ad5787d747f1ba4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2509942Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70953}

This CL adds partial support for objects whose slow mode dictionaries
are OrderedNameDictionaries. This is the case for all slow mode objects
if V8_DICT_MODE_PROTOTYPES is enabled.

Bug: v8:7569
Change-Id: I0b5a0d751e6551e78121569ddefd9e00c164cc5a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2489692Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Frank Emrich <emrich@google.com>
Cr-Commit-Position: refs/heads/master@{#70952}

Turboprop adds a negative implication for inlining to disable inlining
with turboprop. When we add tiering up support from Turboprop, this
implication means we would no longer inline functions even with
Turbofan. This cl instead turns off inlining for turboprop compilations
so we still don't inline for Turboprop compilations but support
inlining for Turbofan.

Bug: v8:9684
Change-Id: I5c7d2ca02f591ea007d66725200f12a4b0025d85
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2517119
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70951}

Currently MockPlatform has shorter lifetime than the isolate that uses
it. Creating isolate before MockPlatform leads to races in concurrent
tasks that were scheduled before the MockPlatform replaced the default
TestPlatform. This caused issues after landing
https://chromium-review.googlesource.com/c/v8/v8/+/2502808

This CL ensures that MockPlatform is valid throughout the whole
lifetime of the isolate

Change-Id: Ia888fba93819ea98b935a1d36307d98dd358fcad
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2507379Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70950}

.. to be reverted in a day or two.

Bug: v8:8888
Change-Id: Iee156da614b50c351ca9a07cc497177c92de865d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2512907
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Lutz Vahl <vahl@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70949}

For atomic.wait we have to check in generated code if the memory is
shared. If not, the code has to trap. In compiled code, this is done in
the runtime function. In the interpreter, however, this check was
missing. This CL adds the check to the interpreter.

R=thibaudm@chromium.org

Bug: chromium:1144603
Change-Id: If897e3f10b404ff677341ee14ad9eda7f5e64d16
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2512922Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70948}

Slight performance regression by adding locking around feedback
vector get/set. The lock isn't necessary for reads on the main thread,
since the main thread is the only source of change.

Bug: chromium:1144777
Change-Id: I7cc9898ad0d8e8c468ba150c0bc6bef3176fd256
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2516475Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70947}

Concurrent allocation test was failing flakily. Do not fix this simply
by increasing heap size since this would reduce frequency of GCs.
Instead allow allocations to fail. Even in this case the allocation
code path is still executed which we want to test.

Bug: v8:11084, v8:10315
Change-Id: I0daa9ad9177aab8b02b7decf2ccfd50e0d8ab9b6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2516471Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70946}

String::FlatContent and FlatStringReader are ways of reading a flat
String. Both of them provide a speedy interface to read a String since
they bypass the dynamic dispatch of String::Get. For this very same
reason, they are not safe to be used from background threads.

Bug: v8:7790
Change-Id: I919ae5e3862df81ff3ebb5131144ff5961197b35
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2509596
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70945}

Rename files to match contents (src/objects/compilation-cache-table*),
and extract implementations from objects.cc into dedicated .cc file.

Bug: v8:8888
Change-Id: I02915316ee62186f94373b1859c7d8119a1953f1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2516473
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70944}

Minor refactors to improve readability and consistency between
FeedbackVectorSpec and FeedbackMetadata:

- Rename FeedbackVectorSpec::slots to slot_count.
- Rename FeedbackVectorSpec::closure_feedback_cells to
  create_closure_slot_count, likewise all related fields.
- Store FeedbackVectorSpec::slot_kinds_ as an array of
  FeedbackSlotKind.

Bug: v8:8888
Change-Id: I3a45177163d1484b1625de8dfba5c6c05cfc426d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2512908Reviewed-by: Mythri Alle <mythria@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70943}

This broke building with the use_perfetto_client_library gn flag.

Change-Id: Ifbcaf77286c0d121b463e4867913d63b85da7fc6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2516701
Commit-Queue: Eric Seckler <eseckler@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Auto-Submit: Eric Seckler <eseckler@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70942}

Port 42e8c231

Because the shift amount may not a 5-bit or 6-bit value, remove the
DCHECK in shift operations like x86 and arm platforms;

Change-Id: I50e8f4662ced9eadcc4d867c5862077174619f1d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2509089Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Auto-Submit: Liu yu <liuyu@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#70941}

This reverts commit 8156dd85.

Reason for revert: https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Win64%20ASAN/15800/overview

Original change's description:
> GetCurrentStackPosition() -> base::Stack::GetCurrentStackPosition()
>
> Remove the duplicate utility function and use the base::Stack
> equivalent instead which provides more stack utilitiy functionality.
>
> Change-Id: Ia7a79f2530b64ceb6e2ce33445c876980b4b2a3d
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2509595
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#70930}

TBR=mlippautz@chromium.org,clemensb@chromium.org,verwaest@chromium.org

Change-Id: Id18949a3c82171e74370e729cd303607d46c8805
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2515431Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70940}

The CommandlineAPI destructor retrieves the property descriptors for
every function it installed on the global object, but it doesn't do
anything with the descriptor directly, just verifies that it could
retrieve them.

As there are cases where 'getOwnPropertyDescriptor' can actually fail,
such as stack overflow or termination exceptions, we remove the check.

R=yangguo@chromium.org

Bug: chromium:914286
Change-Id: I01147195bdf107131de602789f448abe0afa6b0e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2516470
Commit-Queue: Simon Zünd <szuend@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70939}