The reference stack was set by the scope, and reset when leaving the
scope, in order to avoid leaking objects via cycles in the reference
tree, involving global handles which are considered strong roots.
Since the interpreter cannot call out to JS any more, we cannot create
such cycles any more. Hence, the ReferenceStackScope is removed, and the
FixedArray for the reference stack is allocated as a global handle
instead.

This will unblock removing the WasmDebugInfo object, which was used by
the ReferenceStackScope before this CL.

R=ahaas@chromium.org

Bug: v8:10389
Change-Id: I2e3c6a03750846679eecd9e6a07042db962aad9c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235542Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68257}

Fix dcheck failure where committed was smaller than used memory. This was because of background threads allocating between calculating both stats and used memory could already be larger due to those background allocations. Avoid this first calculating used memory and committed memory afterwards.

Bug: v8:10563, v8:10315
Change-Id: Ic07970f607941140e3028bddde3e365b66aa4b5f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2237138
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68256}

Rename CreateFillerObjectFromSweeper to CreateFillerObjectAtBackground.
Also use CreateFillerObjectAtBackground in PagedSpace::Free since this
is used from both main and background threads.

Bug: v8:10315
Change-Id: I1dc8ca2b1c81bdfd192c0ae8d8547eb577f3f8c3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235534
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68255}

A previous CL removed the kNoThrow flags from both
SpeculativeBigIntAdd and SpeculativeBigIntSubtract. This introduced a
bug, because the JSTypeHintLowering phase, where these operators are
introduced during inlining, does not support the generation of throwing
operators.

Since these operators always deoptimize in case of an error, instead of
throwing the exception directly, it is safe to mark them as kNoThrow.

Bug: chromium:1091461
No-Try: true
No-Tree-Checks: true
Change-Id: I551616b0c462647574e5af8824d9ed7b3252659d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235113
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68254}

Added wasm tracing support for turbofan with the flag --trace-wasm.
The test suite was updated accordingly.

R=clemensb@chromium.org

Bug: v8:10559
Change-Id: Ie6ee2a05142081416d8572d4d72dcd315e0bf285
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235536Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Arnaud Robin <arobin@google.com>
Cr-Commit-Position: refs/heads/master@{#68253}

Change-Id: I56264fae4f60018a324667ec093bc02296d74d87
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2232546
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68252}

Return no value when global memory scheduling is off. Previously
returned new_space->Capacity()+1 since this value was used in the
callers to compare the result to.

Bug: v8:10315
Change-Id: I7c7289ee9319fe9c791c3cb9b9b46cca54815904
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235704
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68251}

OldGenerationAllocationCounter() needs to be invoked in safepoint,
otherwise invocation races with background threads incrementing the
counter.

Bug: v8:10315
Change-Id: Iab005582bab7ebf63e7a5a796b25690f499a99eb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235544
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68250}

Change-Id: Ic6130cee088d3bc12fdfb4a5f947138b34466456
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2232545
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68249}

This reverts commit f7f72b7b.

Reason for revert: Flaky timeouts of slow-path tests -- specifically, mjsunit/regress/wasm/regress-9017, which appears to have regressed from ~2 min to ~3-4 min 

https://logs.chromium.org/logs/v8/buildbucket/cr-buildbucket.appspot.com/8878016799136124416/+/steps/Check_-_slow_path__flakes_/0/logs/regress-9017/0

Original change's description:
> [wasm-simd] Prototype f64x2 rounding instructions
> 
> Implements f64x2 ceil, floor, trunc, nearestint, for interpreter and
> x64.
> 
> Bug: v8:10553
> Change-Id: I12a260a3b1d728368e5525d317d30fc9581cae04
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2213082
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#68241}

TBR=gdeepti@chromium.org,tebbi@chromium.org,zhin@chromium.org

Change-Id: I9915dd375c7f0e08b5414189efb29ed1c90cb96d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:10553
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2237131Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68248}

This CL
* Adds the xadd instruction to the ia32 assembler and disassembler;
* Implements the AtomicAdd instructions, except AtomicAddU64, on ia32;

R=clemensb@chromium.org

Bug: v8:10108
Change-Id: Ic8653a9f96148282951104fefb4185c4c0db89a3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2232719Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68247}

There are at least three equivalence classes where this assertion
should not actually hold:

  '\u0390\u1fd3',              // ΐΐ
  '\u03b0\u1fe3',              // ΰΰ
  '\ufb05\ufb06',              // ſtst

Bug: v8:10591
Change-Id: I26cb43d2e67c54e689f1831ea13be46c73d5e92d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2231595Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68246}

This reverts commit 3692bef9.

Reason for revert: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20UBSan/11514?

Original change's description:
> [wasm-simd][x64] Prototype i32x4.dot_i16x8_s
> 
> This implements I32x4DotI16x8S for x64 and interpreter.
> 
> Bug: v8:10583
> Change-Id: I404ac68c19c1686a93f29c3f4fc2d661c9558c67
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2229056
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> Commit-Queue: Zhi An Ng <zhin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#68244}

TBR=gdeepti@chromium.org,tebbi@chromium.org,zhin@chromium.org

Change-Id: I8760d480a783ba6c8a2ec2eaeb0131c7d4e11159
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:10583
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2236961Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68245}

This implements I32x4DotI16x8S for x64 and interpreter.

Bug: v8:10583
Change-Id: I404ac68c19c1686a93f29c3f4fc2d661c9558c67
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2229056Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68244}

See
https://clang.llvm.org/extra/clang-tidy/checks/modernize-use-bool-literals.html.

Bug: v8:10488
Change-Id: I0808eee42c3339d9de653125b0d853b8ae5e5540
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2233856Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68243}

See
https://clang.llvm.org/extra/clang-tidy/checks/modernize-use-bool-literals.html.

Bug: v8:10488
Change-Id: I9de63b954f99a1725b5d20ff7bb3f416cf22131a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2233408Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68242}

Implements f64x2 ceil, floor, trunc, nearestint, for interpreter and
x64.

Bug: v8:10553
Change-Id: I12a260a3b1d728368e5525d317d30fc9581cae04
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2213082
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68241}

Bug: v8:10180
Change-Id: I39d0beb3e30cc5810eac32ec203191ec840cd6d9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2225608
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68240}

This allows fast call callbacks to be created in cases where C++
templates cannot be used, for example C or Rust.

Bug: chromium:1052746
Change-Id: I90122444297f6c00428cd7345e0c0c7eca010716
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235914Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Gus Caplan <me@gus.host>
Cr-Commit-Position: refs/heads/master@{#68239}

This is a little cleanup to use the {GraphAssembler} for implementing
{TraceMemoryOperation}. The {GraphAssembler} needs to be extended by a
straight-forward {StackSlot} method.

R=tebbi@chromium.org
CC=arobin@google.com

Bug: v8:10123
Change-Id: Ic872870bfd8609bb09383a0458b5c08fd7586993
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2232556
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68238}

This reverts commit 31c66193.

Reason for revert: Speculative revert for lots of timeouts on the
tree, some seem heap related, e.g.
https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20-%20cfi/25151

Original change's description:
> [heap] Expand new space in safepoint
> 
> Move expansion of the new space into the safepoint. Otherwise background
> threads race with the main thread when accessing the new space capacity.
> This will most likely also be required to allow the allocation of new
> space objects from background threads.
> 
> Bug: v8:10315
> Change-Id: Ia8ac0c9f582876b655eaf4e35082aeadfbdb830e
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235532
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#68226}

TBR=ulan@chromium.org,dinfuehr@chromium.org

Change-Id: I8da9aa000090a9bff43bb15b7bb55bb5a3138fe5
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:10315
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235539Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68237}

Bug: chromium:1056170
Change-Id: I89d0fbe6b73bf1b8765bb532fff58b1960fed09a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235537
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68236}

Adds allocation-based heap growing strategy that triggers GC based on
some limit. The limit is computed based on previous live memory and a
constant growing factor.

For invoking GC, we support two modes: with and without conservative
stack scanning. Without conservative stack scanning, an invoker makes
sure that we schedule a GC without stack using the existing platform.

Bug: chromium:1056170
Change-Id: I1808aeb5806a6ddd5501b556d6b6b129a85b9cda
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2228887Reviewed-by: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68235}

Not sure why I chose to specify temporaries in the instruction selector,
this isn't needed since arm64 has sufficient scratch registers to go
around.

Bug: v8:8460
Change-Id: I57659915e5ad79eaae79024e7a6c9e6237f49416
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2231594
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68234}

Document:
- Visitor

Bug: chromium:1056170
Change-Id: Icc0037befa73f043fcbf14ff4ff89be8b8940ee4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235696Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68233}

Unfortunately this code never triggered.

Bug: chromium:906567
Change-Id: If89daa6edac85226e8426c4f0685977f711c0086
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235114
Auto-Submit: Georg Neis <neis@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68232}

Object materialization did not correctly deal with a mismatch between
current representation of a field value and expected representation.
This is an attempt to repair the situation.

Bug: chromium:1084820
Change-Id: Ib337cbaf5e36a5a616b6a6cb0ddf51018d49b96a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2228330
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68231}

R=sigurds@chromium.org

Bug: v8:10533
Change-Id: I81756299c286801423fd0f5170046235c8e3dede
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235117Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68230}

This reverts commit 8748613f.

Reason for revert: MSAN failures (https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/32760?)

Original change's description:
> [compiler] Hook in binary op builtins with feedback in generic lowering
> 
> If --turbo-nci is enabled, use binary op builtins with feedback
> collection during generic lowering.
> 
> Bug: v8:8888
> Change-Id: I307dc742488982bdc68006be5bcd1da8e68768f5
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2228614
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#68227}

TBR=neis@chromium.org,jgruber@chromium.org

Change-Id: I635b1a5a28b25ce29e4f8bc23eb52841885b0cdf
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:8888
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235535Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68229}

Port df2ab0f0

R=zhiguo.zhou@intel.com, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: I1f0026d4240fcd0a9ad5f84daf01bd7e3df4234e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2233235Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#68228}

If --turbo-nci is enabled, use binary op builtins with feedback
collection during generic lowering.

Bug: v8:8888
Change-Id: I307dc742488982bdc68006be5bcd1da8e68768f5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2228614
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68227}

Move expansion of the new space into the safepoint. Otherwise background
threads race with the main thread when accessing the new space capacity.
This will most likely also be required to allow the allocation of new
space objects from background threads.

Bug: v8:10315
Change-Id: Ia8ac0c9f582876b655eaf4e35082aeadfbdb830e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235532Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68226}

Document:
- TraceCallback
- TraceDescriptor
- TraceTrait

Bug: chromium:1056170
Change-Id: I1c57ce215e4f6f83563326924cfc4c6aeef33e41
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2235112
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68225}

Port df2ab0f0
https://crrev.com/c/2219688

Change-Id: I5183d883a8bc34723efadde4782301f205273bb6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2233436Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#68224}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/8bce03b..036a45e

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/cf2d770..a85d58e

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

Change-Id: Iffb627b481a869f2d7b4d5e45529c3f94aa40f08
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2234461Reviewed-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@{#68223}

This aligns the wasm locals with how JavaScript locals are displayed in
the DevTools scope view.

Before: https://i.imgur.com/y0urpbL.png
After: https://i.imgur.com/368KDay.png

Bug: chromium:1043034
Change-Id: I5811d18101ec68c320fd223e041e12989c66e721
Doc: https://bit.ly/wasm-fallback-dx#bookmark=id.1uhy72x83he7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2232550
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68222}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/3142ebd..8bce03b

Rolling v8/third_party/aemu-linux-x64: ij0nEFLmrqJqEp81i5YIDjeQ8epXhPrtAI0otT1OId0C..WCiGqc2IsqMVCcj8UruU8vGLvhfosP46CB3tAy6N2boC

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/92c6c3e..69b4144

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/02dbd01..cf2d770

Rolling v8/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest/+log/cb44c86..4fe0180

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/fab9ca5..3c04a1b

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

Change-Id: If1eeb990b78e5503daafc760e1dfe23b8b112e15
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2234022Reviewed-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@{#68221}

Bug: v8:9909
Change-Id: I99c599ac1d872a8b4e7c154a942026b52ecb0bd5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2219688
Commit-Queue: Zhiguo Zhou <zhiguo.zhou@intel.com>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68220}

Port 2f7f90b5

Original Commit Message:

    This reverts commit dfbbb4a5.

    Reason for revert: Bitmask added post 84 cut, so it is not part of origin trial. Therefore it is still a post-mvp.

    Original change's description:
    > [wasm-simd] Add bitmask to SIMD MVP
    >
    > This removes the post-mvp flag for bitmask, since it was accepted into
    > the proposal, see https://github.com/WebAssembly/simd/pull/201.
    >
    > Bug: v8:10308
    > Change-Id: I4ced43a6484660125d773bc9de46bdea9f72b13b
    > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2216532
    > Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
    > Commit-Queue: Zhi An Ng <zhin@chromium.org>
    > Cr-Commit-Position: refs/heads/master@{#67993}

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

Change-Id: I2076f24c2e232ca071b9dc62c9f23d3eb7acfa72
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2233406Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#68219}

Bug: v8:7748
Change-Id: I461b68f1950847271a92e7b52f3d4d8b520eccfe
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2231349
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68218}