NOTRY=true

Bug: v8:9217
Change-Id: I9e7a834ec7a19b1d1a4469b6024e08e21b5c1921
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1599603
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Tamer Tas <tmrts@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61369}

The original CL title was updated to reflect CL contents. The
--win64-unwinding-info flag still exists but it is set by default.

This is a reland of efd8c2d9

Original change's description:
> Remove --win64-unwinding-info flag and always generate unwind info on Win/x64
>
> The generation of unwind info to enable stack walking on Windows/x64
> (https://chromium-review.googlesource.com/c/v8/v8/+/1469329) was implemented
> behind a temporary flag, in order to coordinate these changes with the
> corresponding changes in Chromium.
>
> The required changes to Chromium
> (https://chromium-review.googlesource.com/c/chromium/src/+/1474703) have also
> been merged, so we can now remove the flag and enable the generation of stack
> unwinding info by default on Windows/x64.
>
> Bug: v8:3598
> Change-Id: I88814aaeabecc007f5262227aa0681a1d16156d5
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1573138
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Commit-Queue: Paolo Severini <paolosev@microsoft.com>
> Cr-Commit-Position: refs/heads/master@{#61020}

Bug: v8:3598, chromium:958035
Change-Id: Ie53b39f3bb31567797a61e5110685284c266c1f9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1599596
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61368}

This reverts commit 4faf5a7f.

Reason for revert: change of plans.

Original change's description:
> Add more OWNERS for DevTools protocol definitions
> 
> R=​alph@chromium.org
> 
> Change-Id: I615b9274cd0f6128d3f2377ef9dacb6aa1980446
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601494
> Reviewed-by: Alexei Filippov <alph@chromium.org>
> Reviewed-by: Pavel Feldman <pfeldman@chromium.org>
> Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
> Commit-Queue: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61365}

TBR=dgozman@chromium.org,alph@chromium.org,pfeldman@chromium.org,yangguo@chromium.org

Change-Id: Ida51f3b315d020abe0b34dceb4e54f7d92971035
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601501Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61367}

We pretty much always want tracing data as a JSON file. Implement a
Consumer which converts protos to the JSON trace events format.

This duplicates a lot of the internals of TraceWriter in
trace-writer.cc but we will remove that eventually.

Cq-Include-Trybots: luci.v8.try:v8_linux64_perfetto_dbg_ng
Bug: v8:8339
Change-Id: I85f86562f1b3c4d24ecd755413d1c3f88b292adb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1541042
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61366}

R=alph@chromium.org

Change-Id: I615b9274cd0f6128d3f2377ef9dacb6aa1980446
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601494Reviewed-by: Alexei Filippov <alph@chromium.org>
Reviewed-by: Pavel Feldman <pfeldman@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61365}

Gcov builds such as
https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20-%20gcov%20coverage/18276
are failing because they can't find std::copy_if. Including the right
header fixes it.

Change-Id: I3f0e3fabfe1b32cc4492aee64d2b9f23fa4afdcb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1600431Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61364}

This reverts commit 2b24cd03.

Reason for revert: Causes layout test failures
https://ci.chromium.org/p/chromium/builders/try/linux-chromeos-rel/275121
and https://ci.chromium.org/p/chromium/builders/try/win7-rel/86354

Original change's description:
> [heap] Skip read-only space in Heap::Contains
> 
> Bug: v8:7464
> Change-Id: I27e82cdf0f8cc56ff68dcfaecab9644fe74916c7
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1559861
> Commit-Queue: Maciej Goszczycki <goszczycki@google.com>
> Reviewed-by: Dan Elphick <delphick@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61350}

TBR=ulan@chromium.org,delphick@chromium.org,goszczycki@google.com

Change-Id: I13cc09dd44a10bad854fa861b6e43149babb1b5e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7464
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601498Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61363}

Puts back source position collection for inlined functions when
concurrent inlining is not enabled.

Bug: v8:8510
Change-Id: I8e8a7ef15c0854b1e37299a007303b3213988cf6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601266
Auto-Submit: Dan Elphick <delphick@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61362}

The implementation of the method is long gone, just the declaration was
left for some reason.

Bug: v8:9183
Change-Id: Id68fc6afa63c3663769f9d8e0a6bc1a7a3aa5e35
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601497
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61361}

Bug: v8:8996
Change-Id: I63ae821086c42c14a317e866fb4f0f799f4c4f7c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1597555
Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61360}

Rolling v8/base/trace_event/common: https://chromium.googlesource.com/chromium/src/base/trace_event/common/+log/63246bb..cfe8887

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/d376ad0..4e921e4

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/f8847c1..09e818b

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/e7f0b4c..43d3bb8

Rolling v8/third_party/icu: https://chromium.googlesource.com/chromium/deps/icu/+log/ae4b77d..3a162e7

TBR=machenbach@chromium.org,sergiyb@chromium.org,tmrts@chromium.org

Change-Id: Ib4ed22461db8ae917a66a1a1799ed09336b685c2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601580Reviewed-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@{#61359}

A DCHECK in LookupIterator::name hits when we add a indexed property,
as it requires a named property.
This replaces it with GetName to avoid the failure.

Bug: chromium:959727
Change-Id: I1e98b313ec9257db80460a34d691016acbceb3c9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1597372
Commit-Queue: Taiju Tsuiki <tzik@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61358}

Bug: v8:7729
Change-Id: Ide6422a9315f56ada584156124037039ea591086
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1600368Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Mathias Bynens <mathias@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61357}

https://chromium.googlesource.com/external/github.com/tc39/test262/+log/ba013cf7f..2682ab57c

Bug: v8:7834
Change-Id: I918c223d7fee5d70f9ca645a44eb23e03ef745c6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1600367Reviewed-by: Mathias Bynens <mathias@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61356}

This will allow me to reuse the routines for the
inspector_protocol/encoding/encoding_test, rather than copy them.
I've already verified that this works.

Change-Id: I5b61e4f48c2d00d9d0a5305c9790093c66b3c765
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1600360
Commit-Queue: Johannes Henkel <johannes@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61355}

Bug: v8:9093
Change-Id: If899e36d4fbef711118ff8d7730ff9acd118d8b3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1599600Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61354}

There are two possible type:
- scriptParsed - breakpoint for any script,
- scriptWithSourceMapParsed - breakpoint for script with
  sourceMappingURL.

When one of the breakpoints is set then for each matched script
we add breakpoint on call to top level function of that script.

Node: https://github.com/nodejs/node/issues/24687

R=dgozman@chromium.org

Bug: chromium:887384,chromium:724793,chromium:882909
Change-Id: I9c08b2a2a5ba7006adfedd85fc92ae191517af00
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1354245Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Reviewed-by: Alexei Filippov <alph@chromium.org>
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61353}

To prevent OOMs for leaked CPU profilers, add the option to limit the
maximum number of samples that are included in a CPU profile.

Bug: chromium:956688
Change-Id: I119d0622e7d39c187f8e09e2d49dec91fd724ecb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1588412
Commit-Queue: Andrew Comminos <acomminos@fb.com>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Alexei Filippov <alph@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61352}

Spec: https://tc39.github.io/ecma262/#sec-proxy-object-internal-methods-and-internal-slots-set-p-v-receiver
Bug: v8:6664
Change-Id: Ieddb645669a72d78ff9c0a45267165de3c5276f1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1585269
Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61351}

Bug: v8:7464
Change-Id: I27e82cdf0f8cc56ff68dcfaecab9644fe74916c7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1559861
Commit-Queue: Maciej Goszczycki <goszczycki@google.com>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61350}

This change introduces a new decorator syntax @ifdef which can be used
on any class fields in .tq files, and updates SharedFunctionInfo to use
it as an example.

Bug: v8:7793
Change-Id: I690ae2a10d6cab044eedf5b931e4f95e757ed469
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1536985
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61349}

Bug: chromium:959747
Change-Id: I2518a35508b97ae1c2df7f30c1c2b9755ba6f495
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1597116Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#61348}

The involved code kinds should no longer appear as part of frames for
{Code} objects since they have been moved to {WasmCode} for quite a
while now.

R=jkummerow@chromium.org

Change-Id: Iadc4ef668ebb56bf418fb706c3f118d9c3b553bd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1598755
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61347}

Port 1a7d847c

R=sigurds@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: I13df37162f26a32512ac4897e4f6657db28d0fb6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1600756Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#61346}

Otherwise (this) will leak into a later this=> making it seem like a valid
arrow function head.

Bug: chromium:941703
Change-Id: I5c3ff70f1d525ec0da53b401a0bfec4c1ee7812f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601260
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61345}

If concurrent sweeping is not making progress, then the slow path of allocation
tries to sweep one page before allocating a new page. If that one page happens
to be a never-evacuate page, then sweeping it will not produce any free space.

This is problematic for tests that disable page allocation by setting the
force_oom flag. Such tests become sensitive to the number of pages marked
as never-evacuate (i.e. pages that were deserialized from the snapshot).

Bug: v8:9205
Change-Id: If19a036b67319a5a2170f378f2c07ffa01bb7b27
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601259Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61344}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/dd46a42..d376ad0

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/cca9447..f8847c1

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/ccd2b4d..e7f0b4c

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/2335bfa..d9d55ae

TBR=machenbach@chromium.org,sergiyb@chromium.org,tmrts@chromium.org

Change-Id: I3b17179898e2572105ab828f1b3234f8a3e3dd66
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601313Reviewed-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@{#61343}

Below change canceled removing x18 from restore_list for deoptimization
entries, but it also doesn't remove it from the saved_register list
which causes x18 be restored incorrectly when deopt happens.

https://chromium-review.googlesource.com/c/v8/v8/+/1583762

Bug: chromium:893460
Change-Id: Iccb950150a07119a3642dc42f044e94eb49db76e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1600674Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61342}

Patch from Chukwuchebem Orakwue <c.orakwue@samsung.com>

Change-Id: Ic5b302f4965b0f032839ef06e1221f56c37f76a1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1582055Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61341}

Bug: v8:8394, v8:8395
Change-Id: I1cbb87b67bef4d469abde99070b7870e2b8d0c90
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601149
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61340}

Going back on https://chromium-review.googlesource.com/c/v8/v8/+/1445978
since now 'tagged' means 'full tagged' again.

Cq-Include-Trybots: luci.v8.try:v8_linux64_pointer_compression_rel_ng
Cq-Include-Trybots: luci.v8.try:v8_linux64_arm64_pointer_compression_rel_ng
Bug: v8:8977, v8:7703
Change-Id: I3e39d631cc720a28577dad482dadfcc8332b6b18
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593301
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61339}

For faster calls from Wasm to C-API functions, passing parameter
values directly instead of through JavaScript wrapper objects.

Change-Id: I31e7d1622dedaf3154483306ab159427ac167663
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1591601Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61338}

This fixes a crash when using --trace-ic on Arm64 debug. For a given return
address, the assembler's `target_address_from_return_address()` method will
displace it to give you the call-site address. However, this is fragile because
it needs to decode the instruction stream to distinguish between different call
sequences. So it triggered an assertion on Arm64 because we now use BL for
builtin to buitin calls.

We only use this when tracing IC states to detect if the caller is a deoptimized
function. But to do this it doesn't matter if the address we have is the return
or the call-site address. So we can just remove the need for the fragile
Assembler method.

As a drive-by, also remove `return_address_from_call_start()` which was doing
the opposite and was unused.

Change-Id: I5988d17eadd1652ed85d662e62bc4c579665dd31
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1594566
Commit-Queue: Pierre Langlois <pierre.langlois@arm.com>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61337}

Lazy compilation no longer asserts the non-existence of code. Code may
exist when tiering finishes (and publishes code) after {CompileLazy}
started execution and before it reached the DCHECK.

Bug: v8:9211
Change-Id: I03ed44da7e16f1e4b4dca4b314a56cf6828bf1a4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1596447Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Frederik Gossen <frgossen@google.com>
Cr-Commit-Position: refs/heads/master@{#61336}

Bug: v8:9213
Change-Id: If1299bb11a238b7732dde6931a79b991119cec2e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1596730Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Nico Hartmann <nicohartmann@google.com>
Cr-Commit-Position: refs/heads/master@{#61335}

This CL introduces an AnnotationSet to unify annotation handling. Grammar
rules now accept a list of annotations (via annotations Symbol), where an
annotation is an Identifier starting with '@'. The new class AnnotationSet
can be used to restrict the allowed annotations and query presence of annotations
in the Make* functions.

Bug: v8:7793
Change-Id: Iad5435d4a94a3bea99aca76c23d2cffffe78a97f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601142
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61334}

Flatten cons strings into a buffer instead, as we already did for strings
larger than 64 anyway.

Change-Id: Ida7afb9f7ceb38505d67bedfdfbc43c8b4d8c303
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1599428
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61333}

This is a reland of 289b2576.
The fix for failures landed here:
https://chromium-review.googlesource.com/c/v8/v8/+/1599388

Original change's description:
> [Test] Update tests to work with lazy feedback allocation.
>
> This adds either %EnsureFeedbackVectorForFunction or
> %PrepareFunctionForOptimization to allocate feedback vectors when testing
> optimization, allocation sites, IC transitions etc.,
>
> Bug: v8:8394
> Change-Id: I6ad1b6d460e4abda693b326cddb87754e080a0a1
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593303
> Commit-Queue: Mythri Alle <mythria@chromium.org>
> Auto-Submit: Mythri Alle <mythria@chromium.org>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61212}

Bug: v8:8394
Change-Id: Idb5bba221d138e6fd73155f959b9e16fc948c709
TBR: rmcilroy@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1599607Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Auto-Submit: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61332}

The {DiscardSystemPages} call occasionally fails on win32, thus disable
it until the error is found.

R=mstarzinger@chromium.org

Bug: v8:8217, chromium:960707
Change-Id: Idf77dd8e85d3d38cc12a9f4d2db5cc98eb2c7d08
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601150Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61331}

This is a reland of 3c510438

TBR=jarin@chromium.org

Original change's description:
> [ptr-compr][turbofan] Calling the non-compressed Tagged loads and stores
>
> This CL changes the instruction selector so that we use the normal load
> and store, instead of the one that (de)compresses.
>
> Also removed "return;"s and "break;"s that were unnecessary.
>
> Cq-Include-Trybots: luci.v8.try:v8_linux64_pointer_compression_rel_ng
> Cq-Include-Trybots: luci.v8.try:v8_linux64_arm64_pointer_compression_rel_ng
> Bug: v8:8977, v8:7703
> Change-Id: I4f2a82bfc4d300dd56300f394f59c3f9da242ba8
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593296
> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Reviewed-by: Michael Stanton <mvstanton@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61304}

Bug: v8:8977, v8:7703
Change-Id: I3a587662248fad0d633b543ec03f1aba88410ff1
Cq-Include-Trybots: luci.v8.try:v8_linux64_pointer_compression_rel_ng
Cq-Include-Trybots: luci.v8.try:v8_linux64_arm64_pointer_compression_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1601151Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61330}