Also ensure that CSA's CloneFixedArray and ExtractFixedArray correctly
transition COW to non-COW maps when doing a clone requiring copying.

Bug: chromium:775888
Change-Id: I31c97072761fdd2360d86f840c9fd6ab2d72973a
Reviewed-on: https://chromium-review.googlesource.com/727900
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48754}

Includes the fix for aborted compaction pages that now require processing 
with all other ArrayBufferTrackers because the considered length (byteLength)
may be a HeapNumber allocated on a compacted page.

This is a reland of 46f9d5a2
Original change's description:
> Reland "[heap] ArrayBufferTracker: Only consider committed size"
> 
> This is a reland of 6488c9e5
> Original change's description:
> > [heap] ArrayBufferTracker: Only consider committed size
> > 
> > - Only consider commited size of ABs.
> > - Compute freed memory from retained sizes byte length might be a
> >   HeapNumber and thus prohibited from accessing (as it may be already
> >   collected).
> > 
> > CQ_INCLUDE_TRYBOTS=master.tryserver.v8:v8_linux64_tsan_rel;master.tryserver.v8:v8_linux64_tsan_concurrent_marking_rel_ng;master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.android:android_optional_gpu_tests_rel
> > 
> > Bug: chromium:775896
> > Change-Id: Ia0bed66afac5e4d5ed58194950a55156e19cec72
> > Reviewed-on: https://chromium-review.googlesource.com/725722
> > Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#48699}
> 
> Bug: chromium:775896
> Change-Id: Ibbec1ffa8fe90d3668f0fe0c1b8b9997b5fd644e
> Cq-Include-Trybots: master.tryserver.v8:v8_linux64_tsan_rel;master.tryserver.v8:v8_linux64_tsan_concurrent_marking_rel_ng;master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.android:android_optional_gpu_tests_rel
> Reviewed-on: https://chromium-review.googlesource.com/726579
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#48707}

Bug: chromium:775896
Change-Id: I9b7b2ae865ef6cdb25692abb65108df5c2ecc157
Cq-Include-Trybots: master.tryserver.v8:v8_linux64_tsan_rel;master.tryserver.v8:v8_linux64_tsan_concurrent_marking_rel_ng;master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.android:android_optional_gpu_tests_rel
Reviewed-on: https://chromium-review.googlesource.com/726800Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48753}

This is a reland of f77d98f7.
The issue was already fixed when this got reverted.

Original change's description:
> Reland "[arm] [simulator] Do also execute tests on real hardware"
> 
> This is a reland of 8bacd848.
> The failing test is disabled if not executing in the simulator.
> 
> Original change's description:
> > [arm] [simulator] Do also execute tests on real hardware
> > 
> > In order to avoid writing tests that *only* pass in the simulator, but
> > not on real hardware, do also execute the simulator tests on real
> > hardware.
> > 
> > R=ahaas@chromium.org, rodolph.perfetta@arm.com
> > 
> > Bug: v8:6947
> > Change-Id: Ibdf1719fff20e17620c0aaa343d7ea28e48f3837
> > Reviewed-on: https://chromium-review.googlesource.com/722961
> > Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> > Reviewed-by: Rodolph Perfetta <rodolph.perfetta@arm.com>
> > Reviewed-by: Andreas Haas <ahaas@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#48706}
> 
> Bug: v8:6947, v8:6963
> Change-Id: I5733794bc5ca223c8e66afcdeb8414b1b4121314
> Reviewed-on: https://chromium-review.googlesource.com/727880
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#48734}

Bug: v8:6947, v8:6963
Change-Id: I6124164ff92a2387d714ce974000b6f615b91983
Reviewed-on: https://chromium-review.googlesource.com/727207Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48752}

This patch moves initialization of inobject_properties and
unused_property_fields of a map to the construction time of the map.

Map::AppendDescriptor now properly decrements unused_property_fields
and thus maintains the invariant for property field counters.

Bug: chromium:774644
Change-Id: I78e5d5c767e22148cb64e8cabe0564e7a13988f5
Reviewed-on: https://chromium-review.googlesource.com/725726Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48751}

Bug: 
No-try: true
Change-Id: I5c4f050d338cb75e93e17aa645922673c74f16e7
Reviewed-on: https://chromium-review.googlesource.com/721664Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Daniel Clifford <danno@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48750}

This revert is manual, but almost completely automatic. 
It was just blocked by a single-line irrelevant refactoring change.
This reverts commit 1cee0e01.

Reason for revert: chromium:776256

Original change's description:
> Reland^4 "[turbofan] eagerly prune None types and deadness from the graph"
>
> This fixes https://bugs.chromium.org/p/chromium/issues/detail?id=773954.
> The issue was that in the EffectControlLinearizer, the effect input of an
> {Unreachable} node was not updated, leaving a {Checkpoint} behind.
>
> This is a reland of 4cf47645
> Original change's description:
> > Reland^3 "[turbofan] eagerly prune None types and deadness from the graph"
> >
> > This fixes the issues
> > https://bugs.chromium.org/p/chromium/issues/detail?id=772873
> > and https://bugs.chromium.org/p/chromium/issues/detail?id=772872.
> >
> > One problem was that mutating an effect node into Unreachable confused
> > the LoadElimination sidetables, so I just always create a new node now.
> >
> > The other problem was that UpdateBlockControl() was executed after
> > UpdateEffectPhi() in the lazy case. This reverted the update to the Merge input.
> > So now I make sure that UpdateEffectPhi() is always executed last.
> >
> > This is a reland of 6ddb5e7d
> > Original change's description:
> > > Reland^2 "[turbofan] eagerly prune None types and deadness from the graph"
> > >
> > > Now, the EffectControlLinearizer connects all occurrences of Unreachable to the
> > > graph end. This fixes issues with later phases running DeadCodeElimination and
> > > introducing new DeadValue nodes when processing uses of Unreachable.
> > >
> > > This is a reland of 3c4bc27f
> > > Original change's description:
> > > > Reland "[turbofan] eagerly prune None types and deadness from the graph"
> > > >
> > > > This is a reland of e1cdda25
> > > > Original change's description:
> > > > > [turbofan] eagerly prune None types and deadness from the graph
> > > > >
> > > > > In addition to using the {Dead} node to prune dead control nodes and nodes that
> > > > > depend on them, we introduce a {DeadValue} node representing an impossible value
> > > > > that can occur at any position in the graph. The extended {DeadCodeElimination}
> > > > > prunes {DeadValue} and its uses, inserting a crashing {Unreachable} node into
> > > > > the effect chain when possible. The remaining uses of {DeadValue} are handled
> > > > > in {EffectControlLinearizer}, where we always have access to the effect chain.
> > > > > In addition to explicitly introduced {DeadValue} nodes, we consider any value use
> > > > > of a node with type {None} as dead.
> > > > >
> > > > > Bug: chromium:741225
> > > > > Change-Id: Icc4b636d1d018c452ba1a2fa7cd3e00e522f1655
> > > > > Reviewed-on: https://chromium-review.googlesource.com/641250
> > > > > Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
> > > > > Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> > > > > Cr-Commit-Position: refs/heads/master@{#48208}
> > > >
> > > > Bug: chromium:741225
> > > > Change-Id: I21316913dae02864f7a6d7c9269405a79f054138
> > > > Reviewed-on: https://chromium-review.googlesource.com/692034
> > > > Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> > > > Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
> > > > Cr-Commit-Position: refs/heads/master@{#48232}
> > >
> > > Bug: chromium:741225
> > > Change-Id: I5702ec34856c075717162153adc765774453c45f
> > > Reviewed-on: https://chromium-review.googlesource.com/702264
> > > Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> > > Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
> > > Cr-Commit-Position: refs/heads/master@{#48366}
> >
> > Bug: chromium:741225
> > Change-Id: I4054a694d2521c2e1f0c4a3ad0f3cf100b5c536f
> > Reviewed-on: https://chromium-review.googlesource.com/709214
> > Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
> > Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#48469}
>
> Bug: chromium:741225
> Change-Id: Id9d4f3a3ae36cb3e38f80edcdba88efa7922ca24
> Reviewed-on: https://chromium-review.googlesource.com/715716
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#48660}

TBR=jarin@chromium.org,tebbi@chromium.org,bmeurer@chromium.org


Bug: chromium:741225 chromium:776256
Change-Id: Iaf2af3cb6dea5fdece43297cb9d987e7decc726d
Reviewed-on: https://chromium-review.googlesource.com/727804
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48749}

- Add StringRaw CPP Builtin
- Remove string.js

Bug: v8:5049
Change-Id: I0d067c5b5aa9231383c2f9f2a9cf80f478fbbaa8
Reviewed-on: https://chromium-review.googlesource.com/727723Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48748}

This also changes modulo to be more like others, e.g., Pow:
- have an inline Modulo
- have a modulo_double_double that we can use as FUNCTION_ADDR in assembler.cc

Bug: 
Change-Id: Id360e4adcde5712ffc5ac22abd3bbaab6aec09f5
Reviewed-on: https://chromium-review.googlesource.com/728027
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48747}

We don't need to save any data for top-level leaf
funcs (they contain no skippable funcs), so we
don't need scope analysis for them either.

BUG=v8:5516

Change-Id: I75700838a3df2f19da559145611c99e2c7ffd088
Reviewed-on: https://chromium-review.googlesource.com/691976
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48746}

This reverts commit 6f93d59d.

Reason for revert: Breaks full-debug build:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20full%20debug/builds/2239

Original change's description:
> [test] Add nan bit patterns to uint{32,64}_vector
> 
> If you just cast those patterns to float or double and pass them
> around, the quiet/signaling NaN bit might change. We had several bugs
> around this, so add these patterns to the general input vectors.
> 
> This oncovers a bug in the wasm interpreter, which will be fixed in a
> separate CL.
> 
> R=​ahaas@chromium.org
> 
> Bug: v8:6947, v8:6954
> Change-Id: I205b8ab784b087b1e4988190fa725df0b90e7ee0
> Reviewed-on: https://chromium-review.googlesource.com/725345
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#48731}

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

Change-Id: I4ceb82eab5d4cbf1f335bf6f358178a17a2fd0ba
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6947, v8:6954
Reviewed-on: https://chromium-review.googlesource.com/728101Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48745}

Change-Id: I67d75423a4f1db330fc79ec274ed7b3c6a9e2cd2
Reviewed-on: https://chromium-review.googlesource.com/725734Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Daniel Clifford <danno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48744}

This reverts commit f77d98f7.

Reason for revert: Still fails:
https://build.chromium.org/p/client.v8.ports/builders/V8%20Arm/builds/4978

Original change's description:
> Reland "[arm] [simulator] Do also execute tests on real hardware"
> 
> This is a reland of 8bacd848.
> The failing test is disabled if not executing in the simulator.
> 
> Original change's description:
> > [arm] [simulator] Do also execute tests on real hardware
> > 
> > In order to avoid writing tests that *only* pass in the simulator, but
> > not on real hardware, do also execute the simulator tests on real
> > hardware.
> > 
> > R=ahaas@chromium.org, rodolph.perfetta@arm.com
> > 
> > Bug: v8:6947
> > Change-Id: Ibdf1719fff20e17620c0aaa343d7ea28e48f3837
> > Reviewed-on: https://chromium-review.googlesource.com/722961
> > Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> > Reviewed-by: Rodolph Perfetta <rodolph.perfetta@arm.com>
> > Reviewed-by: Andreas Haas <ahaas@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#48706}
> 
> Bug: v8:6947, v8:6963
> Change-Id: I5733794bc5ca223c8e66afcdeb8414b1b4121314
> Reviewed-on: https://chromium-review.googlesource.com/727880
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#48734}

TBR=rodolph.perfetta@arm.com,ahaas@chromium.org,clemensh@chromium.org

Change-Id: I0ed35fc9e1dd5d30b0871479d17f0678fec17499
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6947, v8:6963
Reviewed-on: https://chromium-review.googlesource.com/727903Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48743}

Changes:
- introduce the notion of unreachable abstract states.

- reconnect unreachables states to runtime abort in effect phis (so that
  the merged states are not polluted by unreachable branches while
  preserving SSA).

- mark states with failed map checks, unreachable map guars as unreachable.

- add instance type to AbstractMaps, only invalidate instance type on
  mismatched effect merges.


This results in 2-3% improvement on ARES/ML steady state.

Bug: v8:6396
Change-Id: I35b0d4482fa400ba7ee9a754f8ef1b2663ebc7dc
Reviewed-on: https://chromium-review.googlesource.com/727761Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48742}

If we have good lower bound type information in simplified lowering
that the input to PlainPrimitiveToNumber is a string, then we'd like
to introduce a call to the StringToNumber builtin. However, this
requires more careful management of the effect chain than we had
previously. To fix this, introduce a StringToNumber opcode which
defers the graph alteration until effect-control-linearization,
when the effect chain is available for careful wiring.

Bug: v8:6929
Change-Id: I4f0e43fe474a44d0dfa095a3a01caece649d82db
Reviewed-on: https://chromium-review.googlesource.com/727934Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48741}

TBR=sergiyb@chromium.org

Bug: v8:6917
Change-Id: I96cedba176cd3c35ca39bb2d4604956cded114fc
Reviewed-on: https://chromium-review.googlesource.com/728023Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48740}

The test was recently enabled (together with other simulator tests) to
also run on native hardware (in https://crrev.com/c/727880).
Temporarlily disable this one test again until the issue is fixed.

R=ahaas@chromium.org

Bug: v8:6963
Change-Id: Ib6bae773a1d54541c87c37fb8547413ee7deac58
Reviewed-on: https://chromium-review.googlesource.com/728021Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48739}

This allocates and populates potential deoptimization data arrays before
the underlying {Code} objects is allocated. It aims at making the field
holding said data immutable after allocation. Note that we still mutate
this field during deoptimization.

R=verwaest@chromium.org
BUG=v8:6792

Change-Id: Id0c2cfb65e782d7292d2df6bff41c54b2b8c3351
Reviewed-on: https://chromium-review.googlesource.com/725704Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48738}

R=jgruber@chromium.org

Change-Id: I5748dcf1456a19be66058b1b7025da44bcbd999c
Reviewed-on: https://chromium-review.googlesource.com/725735
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48737}

- Throw a TypeError exception if a given target argument is not a typed
array before converting a given offset argument to an integer.
- Add a testcase

Bug: chromium:768775
Change-Id: Id132a0f154fcf930f211922fcbef6c66f9d6f285
Reviewed-on: https://chromium-review.googlesource.com/728120Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48736}

TBR=sergiyb@chromium.org
NOTRY=true

Bug: v8:6917
Change-Id: Ia417ab5cf59a6c2894de67d5519394629b6ab1b9
Reviewed-on: https://chromium-review.googlesource.com/727936Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48735}

This is a reland of 8bacd848.
The failing test is disabled if not executing in the simulator.

Original change's description:
> [arm] [simulator] Do also execute tests on real hardware
> 
> In order to avoid writing tests that *only* pass in the simulator, but
> not on real hardware, do also execute the simulator tests on real
> hardware.
> 
> R=ahaas@chromium.org, rodolph.perfetta@arm.com
> 
> Bug: v8:6947
> Change-Id: Ibdf1719fff20e17620c0aaa343d7ea28e48f3837
> Reviewed-on: https://chromium-review.googlesource.com/722961
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Rodolph Perfetta <rodolph.perfetta@arm.com>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#48706}

Bug: v8:6947, v8:6963
Change-Id: I5733794bc5ca223c8e66afcdeb8414b1b4121314
Reviewed-on: https://chromium-review.googlesource.com/727880
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48734}

Bug: v8:6921
Change-Id: Id73a9ecc476c3c3ce0718bef81684787b72e366e
Reviewed-on: https://chromium-review.googlesource.com/727202Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48733}

R=bmeurer@chromium.org
BUG=v8:6792

Change-Id: I9f3be5304917215283643385ba4a216023c822ab
Reviewed-on: https://chromium-review.googlesource.com/725800
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48732}

If you just cast those patterns to float or double and pass them
around, the quiet/signaling NaN bit might change. We had several bugs
around this, so add these patterns to the general input vectors.

This oncovers a bug in the wasm interpreter, which will be fixed in a
separate CL.

R=ahaas@chromium.org

Bug: v8:6947, v8:6954
Change-Id: I205b8ab784b087b1e4988190fa725df0b90e7ee0
Reviewed-on: https://chromium-review.googlesource.com/725345
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48731}

This adds BigInt support to JavaScript's abstract equality (== and !=),
implemented mainly via CodeStubAssembler::Equal and via Object::Equals.

Bug: v8:6791
Change-Id: I53219f2f71baa760b142cc676f18931731b87226
Reviewed-on: https://chromium-review.googlesource.com/725701
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48730}

Use the (D)CHECK_{EQ,NE,GT,...} macros instead of (D)CHECK with an
embedded comparison. This gives better error messages and also does the
right comparison for signed/unsigned mismatches.

This will allow us to reenable the readability/check cpplint check.

R=ishell@chromium.org

Bug: v8:6837, v8:6921
Change-Id: If44435035d234e90c1dc306a306832c9d36013a2
Reviewed-on: https://chromium-review.googlesource.com/723019Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48729}

This makes jumbo_file_merge_limit=50 work again.

Bug: chromium:770684
Change-Id: I5db6566da876d71ea6ba50ff03b7652074b0a35f
Reviewed-on: https://chromium-review.googlesource.com/725818Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Mostyn Bramley-Moore <mostynb@vewd.com>
Cr-Commit-Position: refs/heads/master@{#48728}

Because the toboolean operator may lower to a builtin call (which is
effectful in turbofan parlance after effect control linearization),
it really should be encoded as a simplified operator, which can
be optimized with respect for the effect chain in linearization.

No new functionality here, rather a furniture rearrangement in
the TurboFan node structure.

Bug: v8:6929
Change-Id: I371fd22941397d5c28d13bded2738161d8da8275
Reviewed-on: https://chromium-review.googlesource.com/725721Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48727}

This is a reland of e737b4ce.
The issue on windows bots was fixed in https://crrev.com/c/725733.

Original change's description:
> [test] Avoid unnecessary std::vector allocations
> 
> Instead of copying an array of fixed values into an std::vector for
> each usage of the FOR_INPUTS macro, just iterate the constant data
> directly.
> This also makes the <type>_vector() functions return {constexpr Vector}
> instead of {std::vector}.
> 
> R=tebbi@chromium.org
> 
> Change-Id: Ifc3e5509b2fbf5e383c967c2f46acf2b07f7b5b4
> Reviewed-on: https://chromium-review.googlesource.com/725427
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#48688}

Change-Id: I9ad5d22803bbbf35c458965497acc603cfa01b20
Reviewed-on: https://chromium-review.googlesource.com/725979Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48726}

Encapsulates special reservation / allocation behavior for builtin
serialization.

This allows us to remove special logic around kNextChunk in builtin
deserialization (since we don't generate that bytecode anymore for
builtins).

Bug: v8:6624
Change-Id: Ice7673006cee53b9d11cdfb7f84d4175221c7984
Reviewed-on: https://chromium-review.googlesource.com/720357Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48725}

Change-Id: I1157ef6baaf60bdbf5d55a1b8f75edb15794baef
Bug: v8:6916
Reviewed-on: https://chromium-review.googlesource.com/715800Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48724}

Replace GetElement and SetElement to Get and Set, and use CopyElements,
which reduces 4x-13x overheads.

Bug: chromium:768775
Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: I58534b30c2035195c5f4b8f2c04e7c459bdbebaa
Reviewed-on: https://chromium-review.googlesource.com/720661Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48723}

This addresses the odd performance cliff, where the CallIC tracks known
JSFunction targets, but goes MEGAMORPHIC when it sees a JSBoundFunction
target. With this fix in place the micro-benchmark on the bug goes from

  arrowCall: 82 ms.
  boundCall: 234 ms.

to

  arrowCall: 81 ms.
  boundCall: 80 ms.

so Function#bind doesn't cause any additional overhead anymore.

Bug: v8:5267, v8:6962
Change-Id: Iaceaf89fd3e99e2afe2ae45e96a6813a3ef8b1d2
Reviewed-on: https://chromium-review.googlesource.com/727879
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48722}

Intent to ship: goo.gl/QZ4QZ5

Bug: v8:5437
Change-Id: Icdacceefa3085f2657edd7f99c7d8f4dbbb76814
Reviewed-on: https://chromium-review.googlesource.com/727200Reviewed-by: Michael Hablich <hablich@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48721}

Example before:
Slot #0 BinaryOp MONOMORPHIC
 [0]: 15
Slot #1 CompareOp MONOMORPHIC
 [1]: 1

And after:
Slot #0 BinaryOp MONOMORPHIC (NumberOrOddball)
 [0]: 15
Slot #1 CompareOp MONOMORPHIC (SignedSmall)
 [1]: 1

R=jarin@chromium.org

Bug: 
Change-Id: Ia22437c52289a13bcfd8847d6e5677ad44529b39
Reviewed-on: https://chromium-review.googlesource.com/725815Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48720}

Broke in:
https://chromium-review.googlesource.com/c/v8/v8/+/725706

TBR=sergiyb@chromium.org
NOTRY=true

Bug: v8:6917
Change-Id: Ieb91c06a6bc1447acbe68c9ce881478c9a4a6149
Reviewed-on: https://chromium-review.googlesource.com/727800Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48719}

This patch provides "Abstract Comparison" functions on the BigInt
class for comparing BigInts to Numbers and Strings.
The functionality is not exposed to JavaScript yet.

Bug: v8:6791
Change-Id: I835f290203a31f363970b1edb359e19af6dabc5d
Reviewed-on: https://chromium-review.googlesource.com/722324
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48718}

Bug: v8:6917
Change-Id: Ia768c9aaf71e70d1376ae21a35fd539a7315b0cd
Reviewed-on: https://chromium-review.googlesource.com/725802
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48717}

This reverts commit 8bacd848.

Reason for revert: Fails on chromebooks:
https://build.chromium.org/p/client.v8.ports/builders/V8%20Arm%20-%20debug/builds/4820

Original change's description:
> [arm] [simulator] Do also execute tests on real hardware
> 
> In order to avoid writing tests that *only* pass in the simulator, but
> not on real hardware, do also execute the simulator tests on real
> hardware.
> 
> R=​ahaas@chromium.org, rodolph.perfetta@arm.com
> 
> Bug: v8:6947
> Change-Id: Ibdf1719fff20e17620c0aaa343d7ea28e48f3837
> Reviewed-on: https://chromium-review.googlesource.com/722961
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Rodolph Perfetta <rodolph.perfetta@arm.com>
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#48706}

TBR=rodolph.perfetta@arm.com,ahaas@chromium.org,clemensh@chromium.org

Change-Id: I4ec1c6ce4f6e86916a83a748819752ba00179ca2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6947
Reviewed-on: https://chromium-review.googlesource.com/727760Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48716}

This ports the build_config json from GN to GYP to prepare deprecating
tedious flags passing to the test runner.

This also removes two unused GN flags that only hold temporary values.

Bug: v8:6917
Change-Id: I976185f1541277dc5c9bfbaa7578f35c19dd254c
Reviewed-on: https://chromium-review.googlesource.com/725706
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48715}