Bug: v8:9087
Change-Id: Ibc21d7e5619e4e6a0edc98cb0bd12e67ab2f6643
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1554690Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60657}

For standard test failures, the variant name is enough to deduce the
full command line of the test. This is used to create the flako
command line on the infra side.

Test failures from numfuzz have additional variant_flags, calculated
by the fuzzer, which don't match a variant name. Exposing those in
the test results will enable printing a proper flako command line
on infra side for numfuzz cases.

Bug: v8:8971
Change-Id: Ie47d42a0b34037da458b474f2a9ab38f1a5d238a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1554689Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60656}

R=clemensh@chromium.org
TEST=mjsunit/wasm/exceptions-simd-interpreter
BUG=v8:8091

Change-Id: Id0b5da98bbfb91c7a5a878681d7fffe81233284f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552794
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60655}

This introduces a new PROTOTYPE_DESCRIPTOR_ARRAY_TYPE, which is used to
be able to distinguish DescriptorArrays for prototypes from regular
ones. This is primarily useful for the live objects, since for dead
DescriptorArrays we will likely not be able to figure out whether they
belong to a prototype Map, unless they die together.

Bug: v8:7266
Change-Id: I4b8e0008cc8bae607778151b7c18d30f4efba88d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1554687Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60654}

This is a reland of d746be9c

Original change's description:
> [wasm] Use work-stealing queues for background compilation
> 
> This reduces contention on the mutex protecting the {CompilationState}
> by splitting the compilation unit queues into several queues (one per
> background task). Each task executes its own queue first, and steals
> from other queues once it runs out of work.
> The implementation of the set of work-stealing queues is encapsulated
> in the new {CompilationUnitQueues} class in module-compiler.cc.
> 
> R=titzer@chromium.org
> 
> Bug: v8:8916
> Change-Id: I5a40314917e7d4a35d7ff9e8ec124ec212beacab
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1543350
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#60572}

Bug: v8:8916
Change-Id: Ic0cbad0ddc31be24715c5490b9ec71a39186fd3b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1549172
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60653}

Typed arrays with elements cannot be frozen, but this function
previously would have falsely reported that they are after
an `Object.freeze()` call. Since the latter bails out when
the object is already frozen, the effect was that when calling
`Object.freeze()` on a typed array more than once, the first call
would throw and subsequent ones would not.

Change-Id: I75e59f51ebb94797cdf39bac4ec4c25c547e70a3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552781
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60652}

This introduces new virtual instance types to further diagnose what's
going on in MapSpace, namely:

 - MAP_ABANDONED_PROTOTYPE_TYPE includes all the abandoned (fast-mode)
   prototype maps.
 - MAP_DEPRECATED_TYPE includes all the deprecated (fast-mode) maps.
 - MAP_DICTIONARY_TYPE includes all the dictionary-mode maps.
 - MAP_PROTOTYPE_DICTIONARY_TYPE includes all the prototype maps in
   dictionary-mode.
 - MAP_PROTOTYPE_TYPE includes all the prototype maps in fast-mode.
 - MAP_STABLE_TYPE includes all the (fast-mode) stable (leaf) maps.

Those maps who don't fall into any of the buckets above are categorized
as MAP_TYPE (as before).

The naming was chosen like this to make it possible to filter for the
relevant maps in the object stats via 'MAP_.*_TYPE'.

Bug: v8:7266
Change-Id: I233734e96a390ddb391bfff8a34a8fec842d1f7f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1554685Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60651}

This ensures the lifetime of reference values on the simulated operand
stack of the interpreter is coupled to a lifetime of the {ThreadImpl}.
We no longer directly store reference values on the stack, but maintain
a separate "reference stack" on the GC'ed heap. This will ensure the GC
traces such references properly.

The new {StackValue} safety wrapper makes sure all use-sites that access
the operand stack properly convert to/from handles when dealing with
reference values.

R=clemensh@chromium.org
TEST=mjsunit/wasm/exceptions-interpreter
BUG=v8:8091,v8:7581

Change-Id: I8c05f2d945a6def943b89be0cfca538a73df8855
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552791
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60650}

This expose v8::Context::DetachGlobal() as Realm.detachGlobal() in d8,
so that we can test API behaviors on Blink's detached iframes.

Change-Id: I4de1dd1a20d5862aba709e36d1d6afa9b221df6c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1554322Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Taiju Tsuiki <tzik@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60649}

This is the first step towards full huge typed array support in V8.
Before this change, the JSTypedArray::length and the elements backing
store length (FixedTypedArrayBase::length) were used more or less
interchangeably to determine the number of elements in a JSTypedArray.

With this change we disentangle these two lengths, and instead make
JSTypedArray::length authoritative. For on-heap typed arrays, the
FixedTypedArrayBase::length will remain the number of elements in the
backing store, but for the off-heap typed arrays, this length will be
set to 0 (matching the fact that the FixedTypedArrayBase instance does
not contain any elements itself).

This also unifies the JSTypedArray::set_/length() and length_value()
methods to only have JSTypedArray::set_/length() which returns/takes
size_t values. Currently this still requires the values to be in Smi
range, but later we will extend this to allow arbitrary size_t values
(in the safe integer range).

Bug: v8:4153, v8:7881
Change-Id: Iff9089130bb31fa9e08e0cf913e7ab52c3dbf107
Cq-Include-Trybots: luci.chromium.try:linux-blink-rel
Doc: http://doc/1Z-wM2qwvAuxH46e9ivtkYvKzzwYZg8ymm0x0wJaomow
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1543729
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60648}

See https://chromium.googlesource.com/chromium/deps/icu/+/1552155
for changes.

Correct test expectation based on icu64 changes.

CL of Rolling the same ICU hash to DEPS in chromium/src Repo is in
https://chromium-review.googlesource.com/c/chromium/src/+/1536613

Cq-Include-Trybots: luci.chromium.try:linux_layout_tests_layout_ng

Bug: chromium:943348, v8:9052
Change-Id: I3a4579ba745f7f6a621b2059de325bea7a2472a1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1536559Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60647}

Locks for compilation state callbacks and for the native module are
again taken one after the other. As a consequence, publishing compiled
Wasm code again happens in parallel. Compile times are now comparable to
before lazy hints were enabled.

Bug: chromium:949050
Change-Id: I45c52254d046de080938bd131fd3ed8116660bef
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552787
Commit-Queue: Frederik Gossen <frgossen@google.com>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60646}

This reverts commit 1fb26d83.

Reason for revert: Flushes out TSan issues: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20TSAN/25782

Original change's description:
> [regalloc] Enable control flow aware allocation
> 
> This is a test to see how much and where we regress. We have seen
> some quirks of our current allocator that do not show up in this
> new approach, so we need to decide whether to stabilize the new
> allocation scheme. Performance numbers are a key indicator for that
> decision.
> 
> This patch is intended to be reverted after stability and performance
> numbers are in (i.e. after a few days).
> 
> Change-Id: I8df8ff7de8efa82a8abbdfa1d21d7877756f129e
> Bug: v8:9088
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552786
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#60643}

TBR=mstarzinger@chromium.org,jarin@chromium.org,sigurds@chromium.org

Change-Id: Ia1934b01b0909479b2bd52ba686cc9b3fb364b4b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9088
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1554682Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60645}

Bug: v8:9087
Change-Id: Ia806686b47f0e6ddc89f6b043df65ab8a931bbf8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552798Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60644}

This is a test to see how much and where we regress. We have seen
some quirks of our current allocator that do not show up in this
new approach, so we need to decide whether to stabilize the new
allocation scheme. Performance numbers are a key indicator for that
decision.

This patch is intended to be reverted after stability and performance
numbers are in (i.e. after a few days).

Change-Id: I8df8ff7de8efa82a8abbdfa1d21d7877756f129e
Bug: v8:9088
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552786Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60643}

Change-Id: I453c356a6d9098739e7bf32d3c7a75c8afb7cab2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1554106Reviewed-by: Ben Smith <binji@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60642}

Some state related to WasmMemories is cached on the JSArrayBuffer
object (is_growable, is_wasm_memory). The problem with this is in
some PostMessage flows, this information can get lost depending on
how JSArrayBuffers are deserialized. In this particular case when
the WasmMemory is postMessaged, it goes through the Blink
DedicatedWorkerMessagingProxy::PostMessageToWorkerGlobalScope flow,
which reconstructs the ArrayBuffer from the backing store, and size,
and loses the is_growable flag, leading to a failure to grow memory.

Moving the is_growable flag so that AllocationData can be the source
of truth for all wasm memory state, and is consistently preserved
across PostMessage.

Change-Id: I775f66ddeff68b8cafc18b75ca5460dfb0343c8b
Bug: v8:9065
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1549789
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60641}

This makes the DCHECK consistent with the map updater.
See https://cs.chromium.org/chromium/src/v8/src/map-updater.cc?l=330&rcl=5671f8b940b0fcdb550e318e449ded0f866e935a

Bug: chromium:949435
Change-Id: Id4fef60cdca094e638a1db38878953ecb2422c4f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552797Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60640}

Indexed fields in classes can now be initialized using iterators
and a spread syntax, e.g.:

  class Foo {
    length: Smi;
    elements[length]: Object;
  }

  new Foo{length: 5, elements: ...iter};

where iter implements Torque's iterator protocol. This protocol
requires the definition of a method with the following signature:

  Next(): <type> labels NoMore;

Where <type> is the Torque type of the values to be iterated.
In the case of indexed field initialization, the type must be
the field's type or a subtype thereof.

Field initialization with spread is desugared into a loop that
calls the spread iterator's Next method and assigns each
returned value in order to the corresponding indexed field
element.

The general machinery for the spread syntax has been added to
the ast and parser, however, it can currently only be used in
the specific context of indexed field initialization. Spread
operators used in any other context will cause an error.

Bug: v8:7793
Change-Id: If071e61db8166573c28d13318879c88ba96f6d98
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1550407
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60639}

Bug: v8:9020

Change-Id: I1b9f3c0c805709c6570785ec9f1045f21c9d03e4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1541048Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60638}

TBR=sergiyb@chromium.org
NOTRY=true

Bug: chromium:933093
Change-Id: Iaf703f9f9743c508c1f63301a74a1076286fab79
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552792Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60637}

TBR=sergiyb@chromium.org
NOTRY=true

Bug: chromium:933093
Change-Id: Idff6d4bdee2192eea895ca044c5a529e3638e908
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552789Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60636}

R=mstarzinger@chromium.org

Bug: v8:8217
Change-Id: I91534149f6a1d4cb4bf2beccc7ab53d75e677024
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552780
Auto-Submit: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60635}

This reverts commit c652b5a1.

Reason for revert: Clang roll detecting this failures was reverted.

Original change's description:
> [test] Skip tests blocking DEPS roll
> 
> NOTRY=true
> 
> Bug: v8:9086
> Change-Id: I1a430c12d5ddccb17931fa32f45463b7d8992971
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552005
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#60624}

TBR=machenbach@chromium.org,sigurds@chromium.org,jshin@chromium.org,sergiyb@chromium.org

Bug: v8:9086
Change-Id: I083c9b4c037bdae1bc0bfbd872bc73b931fbb853
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552785Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60634}

Bug: v8:8834
Change-Id: I763869297e52baf1142f89f0567441c05e00391c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552784Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Maciej Goszczycki <goszczycki@google.com>
Cr-Commit-Position: refs/heads/master@{#60633}

R=clemensh@chromium.org

Change-Id: I643d9a142e55405ec010cfe56915527e3cff2d6d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552783
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60632}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/6fdec9f..96d2ee3

Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/235be3c..218cb3d

Rolling v8/buildtools/third_party/libc++/trunk: https://chromium.googlesource.com/chromium/llvm-project/libcxx/+log/955113d..fbddc46

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/95a9e86..25ef1f6

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

Change-Id: Ifcda76b2b210ba6bfdee10170e042b5dbfff6d01
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1551412Reviewed-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@{#60631}

We only use the safe math helpers (CheckedNumeric<T>) in very few
places. The headers are huge though, and complex. They are pulled in to
839 of our object files, increasing compilation time.

I also find the implicit checks more easy to understand than the complex
logic in CheckedNumeric.

Thus, this CL removes the safe_math headers and implements bounds
checks for the five uses explicitly.

R=jkummerow@chromium.org, mlippautz@chromium.org

Bug: v8:8834
Change-Id: I2d60f95799ee61cfa161354428605f67829cd736
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1547651Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60630}

Bug: v8:9020
Change-Id: Ic949775e018d2bad08fc36db8cdf912df3d67e65
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552779Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60629}

Bug: v8:9020

Change-Id: Ie624a02598f5c3a43e40e03d0337c17ca5cc3769
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1541052
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60628}

It's implied by the last clause of the conjunction.

Change-Id: I78a810a259888eda696c77cd6c117b35ef9e861a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1549171Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60627}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/c2f2e5a..6fdec9f

Rolling v8/buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/459baaf..235be3c

Rolling v8/buildtools/linux64:gn/gn/linux-amd64: https://chrome-infra-packages.appspot.com/gn/gn/linux-amd64/+log/git_rev..git_rev

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/e1fc0b0..63e0762

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/865445e..b8268ca

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/b823d94..95a9e86

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

Change-Id: Ie516f9c71b9709b86def577369702ae149744091
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552157Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60626}

Rolling v8/test/test262/data: https://chromium.googlesource.com/external/github.com/tc39/test262/+log/324f291..6119191

Bug: v8:7834
Change-Id: I2ff745e709727d80ad6be6e910b1896adf78d3db
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1551406Reviewed-by: Mathias Bynens <mathias@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60625}

NOTRY=true

Bug: v8:9086
Change-Id: I1a430c12d5ddccb17931fa32f45463b7d8992971
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552005
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60624}

Context::microtask_context can be null after v8::Context::DetachGlobal
is called, and that should cancel microtasks that are associated to
the detached context.
However, there are several callers left without the null check to the
microtask queue, and that causes crashes.

This CL adds the null check and cancellation as the crash fix.

Bug: chromium:937784
Change-Id: Ie8d107f28f200cee6e75798e3f72c5ed7a2a461c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1545139
Commit-Queue: Taiju Tsuiki <tzik@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60623}

This changes the syntax for constructing structs and classes to explicitly
mention the fieldnames, similar to JavaScript object literals.
The fields still have to be listed in the same order as in the struct/class
declaration.
As in Javascript, {foo: foo} can be abbreviated as {foo}.

Example:

macro NewJSArray(implicit context: Context)(
    map: Map, elements: FixedArrayBase): JSArray {
  return new JSArray{
    map,
    properties_or_hash: kEmptyFixedArray,
    elements,
    length: elements.length
  };
}

Drive-by cleanup: Make struct and class constructors follow the same pattern
                  in the parser and the AST.

Bug: v8:9018 v8:7793
Change-Id: I22ff7f68270e4f406aa80731a709d41ea52f52bb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1551999Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Daniel Clifford <danno@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60622}

Don't record samples from machines without high-resolution timers,
as that can cause serious reporting issues. See the thread at
http://g/chrome-metrics-team/NwwJEyL8odU/discussion for more details.

Bug: v8:9074
Change-Id: I8f9b588b249f944c4bc95feedf56960b28db9ddc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1552001
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60621}

Rolling v8/test/wasm-js/data: https://chromium.googlesource.com/external/github.com/WebAssembly/spec/+log/8059cd6..2a28a92

[test] Add dedicated test for memory.size (#997) (Andreas Rossberg)
https://chromium.googlesource.com/external/github.com/WebAssembly/spec/+/2a28a92

TBR=ahaas@chromium.org,clemensh@chromium.org

Change-Id: Idcb9a6f8f57d0e9d3f673d5575e663d729a50366
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1551405Reviewed-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@{#60620}

This is port for https://crrev.com/c/1524482
Original commit message:
    This allows immediates to be encoded directly into instructions, rather than
    mov-ing constants to registers first.

    This patch only changes emit_{i64,i32}_add, other emit_ functions will be changed once
    this approach has been approved.

Bug: v8:9038
Change-Id: I96929f870e54b24403a32428f3db31b42f41087a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1545148Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Yu Yin <xwafish@gmail.com>
Cr-Commit-Position: refs/heads/master@{#60619}

This reverts commit 42beed97.

Reason for revert: This commit seems to cause consistent failures in
some ProcessMemoryMetricsEmitterTest tests on Mac and ChromeOS. I'm
not sure what the exact reasoning behind this is. See https://crbug.com/949157.

Original change's description:
> Reland "[ptr-compr][x64] Temporarily enable pointer compression on x64"
>
> This is a reland of 4f051fd5
>
> Relanding after fixing Chromium issues.
>
> Original change's description:
> > [ptr-compr][x64] Temporarily enable pointer compression on x64
> >
> > ... and make sure that the x64 ptr-compr bots proceed testing V8 without
> > pointer compression in order to keep testing the full pointer mode.
> >
> > Bug: v8:7703
> > Cq-Include-Trybots: luci.v8.try:v8_linux64_ubsan_rel_ng,v8_linux64_tsan_rel
> > Change-Id: Iee725deda813425a6f0722948b54976154f50909
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1497139
> > Reviewed-by: Michael Hablich <hablich@chromium.org>
> > Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> > Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#60230}
>
> Bug: v8:7703
> Change-Id: Ic2d1c2ae41ec645f34963f5f561c33199c72ef4b
> Cq-Include-Trybots: luci.v8.try:v8_linux64_ubsan_rel_ng,v8_linux64_tsan_rel
> Cq-Include-Trybots: luci.chromium.try:fuchsia_x64,linux-rel
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1535819
> Commit-Queue: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#60582}

TBR=machenbach@chromium.org,hablich@chromium.org,leszeks@chromium.org,ishell@chromium.org,verwaest@chromium.org

Change-Id: Ib9737081e90dddcfe44af9da1275a610da209323
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7703
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1550709
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60618}