Disable test case for turbofan unsupported platform.

  Test case LowerAnyToBoolean_tagged_tagged invokes "Linkage::GetStubCallDescriptor(...)"
  function but this function is not implemented on turbofan unsupported platform.

BUG=

Review URL: https://codereview.chromium.org/836973002

Cr-Commit-Position: refs/heads/master@{#25960}

Make control reducer revisit newly introduced merges.

TEST=mjsunit/compiler/regress-445876
BUG=chromium:445876
LOG=N

Review URL: https://codereview.chromium.org/830293003

Cr-Commit-Position: refs/heads/master@{#25959}

[turbofan] Correctify JSToBoolean lowering.

Introduce a new AnyToBoolean simplified operator to handle the later
lowering of boolean conversions. Previously we tried to hack that with
the generic JSToBoolean, having its context set to zero, but that lead
to various problems/bugs and did not handle all cases.

TEST=cctest,unittests
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/800833003

Cr-Commit-Position: refs/heads/master@{#25958}

[turbofan] Don't crash when typing load from a Uint8ClampedArray.

TEST=mjsunit/compiler/regress-446156
BUG=chromium:446156
LOG=y
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/835883003

Cr-Commit-Position: refs/heads/master@{#25957}

[turbofan] Fix incorrect minus zero handling in the unit tests.

TEST=unittests
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/831203003

Cr-Commit-Position: refs/heads/master@{#25956}

Whitespace commit to trigger bots.

Cr-Commit-Position: refs/heads/master@{#25955}

Whitespace commit to trigger bots.

Cr-Commit-Position: refs/heads/master@{#25954}

Do not reduce effect phis for loops.

This prevents eliminating effectful statements before the loop.

BUG=

Review URL: https://codereview.chromium.org/830923002

Cr-Commit-Position: refs/heads/master@{#25953}

[turbofan] Cache common Loop, Merge and Parameter operators.

R=jarin@chromium.org
BUG=v8:3792
LOG=n

Review URL: https://codereview.chromium.org/835663002

Cr-Commit-Position: refs/heads/master@{#25952}

[turbofan] Truncation of Bit/Word8/16 to Word32 is a no-op.

TEST=mjsunit/compiler/regress-445859
BUG=chromium:445859
LOG=y
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/828313002

Cr-Commit-Position: refs/heads/master@{#25951}

[x64] Rearrange code for OOB integer loads.

We cannot just clear the result register optimistically, because the
register allocator might assign the same register to result and buffer.

TEST=mjsunit/compiler/regress-445858
BUG=chromium:445858
LOG=y
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/828303002

Cr-Commit-Position: refs/heads/master@{#25950}

Fix %NeverOptimizeFunction() intrinsic.

Set a valid reason for disabling optimization when using
%NeverOptimizeFunction.

TEST=mjsunit/compiler/regress-445732
BUG=chromium:445732
LOG=y
TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/832003002

Cr-Commit-Position: refs/heads/master@{#25949}

[turbofan] Fix missing MachineOperator unittest.

The machine-operator-unittest.cc file was missing from unittests.gyp.
Fixed the compiler errors and added it back.

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/824243003

Cr-Commit-Position: refs/heads/master@{#25948}

Whitespace change to trigger bots.

Cr-Commit-Position: refs/heads/master@{#25947}

Work around 'Text file busy' errors in android perf runner.

BUG=374740
TBR=ulan@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/830753002

Cr-Commit-Position: refs/heads/master@{#25946}

[turbofan] Fix invalid bounds check with overflowing offset.

TEST=mjsunit/compiler/regress-445267
BUG=chromium:445267
LOG=y

Review URL: https://codereview.chromium.org/825403002

Cr-Commit-Position: refs/heads/master@{#25945}

Update V8 DEPS.

Rolling v8/tools/clang to c945be21f6485fa177b43814f910b76cce921653

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/829733002

Cr-Commit-Position: refs/heads/master@{#25944}

Update V8 DEPS.

Rolling v8/tools/clang to 51f59463cfea7fc19d085253cf9bd40c1b4c0038

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/830473002

Cr-Commit-Position: refs/heads/master@{#25943}

Update V8 DEPS.

Rolling v8/tools/clang to 6f504ec1a843c7c6af799768a774dec205ce4f3b

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/822073003

Cr-Commit-Position: refs/heads/master@{#25942}

[turbofan] Raise max virtual registers and call parameter limit.

Change InstructionOperand to use a 64-bit field for encoding the operand
information instead of the 32-bit field that was used before. Ideally we
wouldn't use the Zone-allocated bit field at all, and use an integer
instead of the pointer; but that requires fixing the register allocator
first, which will take some time.

TEST=mjsunit/compiler/regress-3786
BUG=v8:3786
LOG=y

Review URL: https://codereview.chromium.org/826673002

Cr-Commit-Position: refs/heads/master@{#25941}

Remove UNREACHABLE() statements from sys-info.cc

We have safe fallbacks in all cases, and it's possible to hit those
codepaths, e.g., on Linux when /proc is not mounted

BUG=v8:3544
R=ulan@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/818213002

Cr-Commit-Position: refs/heads/master@{#25940}

[turbofan] Turn IrOpcode::Mnemonic() into a table lookup.

R=ishell@chromium.org

Review URL: https://codereview.chromium.org/818203002

Cr-Commit-Position: refs/heads/master@{#25939}

Don't pass -pie when building a shared library build on android

BUG=none
R=ulan@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/822933002

Cr-Commit-Position: refs/heads/master@{#25938}

[turbofan] Cache float32 constants on the JSGraph level.

Also slightly refactor the NodeCache and CommonNodeCache classes to
reduce inherent overhead of caching.

TEST=cctest

Review URL: https://codereview.chromium.org/822923002

Cr-Commit-Position: refs/heads/master@{#25937}

Fast-forward version number on bleeding_edge to 3.32.0

BUG=none
LOG=n
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/820033002

Cr-Commit-Position: refs/heads/master@{#25936}

[turbofan] Deinlinify OperatorProperties implementation.

TEST=cctest,unittests
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/821913002

Cr-Commit-Position: refs/heads/master@{#25935}

Work-around for file pushing in android perf runner.

Also include the device serial when logging adb commands.

BUG=374740
TBR=ulan@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/815003003

Cr-Commit-Position: refs/heads/master@{#25934}

[turbofan] Turn DCHECK for fixed slot index into a CHECK.

This is a temporary workaround to ensure that we crash in release mode
instead of running into undefined behavior.

BUG=chromium:444681
LOG=y
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/800713006

Cr-Commit-Position: refs/heads/master@{#25933}

[turbofan] Fix missing ChangeUint32ToUint64 in lowering of LoadBuffer.

TEST=mjsunit/compiler/regress-444695
BUG=chromium:444695
LOG=y
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/824843002

Cr-Commit-Position: refs/heads/master@{#25932}

MIPS: Enable Math rounding operations call reduction optimization in TF.

TEST=
BUG=
R=paul.lind@imgtec.com

Review URL: https://codereview.chromium.org/791473003

Cr-Commit-Position: refs/heads/master@{#25931}

Reset old generation limit on main frame context disposal.

BUG=

Review URL: https://codereview.chromium.org/815933005

Cr-Commit-Position: refs/heads/master@{#25930}

Mark mjsunit/setters-on-elements as flaky

TBR=machenbach@chromium.org
LOG=n
BUG=v8:3784
NOTREECHECKS=true

Review URL: https://codereview.chromium.org/817293002

Cr-Commit-Position: refs/heads/master@{#25929}

Remove custom weak handling of monomorphic IC.

This is not needed anymore since all ICs use weak cells to embed maps.

BUG=v8:3629
LOG=N

Review URL: https://codereview.chromium.org/817223003

Cr-Commit-Position: refs/heads/master@{#25928}

[turbofan] Minor cleanup to reduce code duplication.

TEST=unittests
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/819103002

Cr-Commit-Position: refs/heads/master@{#25927}

Enable the embedder to specify what kind of context was disposed

This API is used by Blink to inform V8 about HTML frames being disposed.
Using the optional parameter, Blink can tell V8 whether the disposed
frame was a main frame. In that case, we might want to reset GC
parameters

BUG=none
R=hpayer@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/823583003

Cr-Commit-Position: refs/heads/master@{#25926}

Implement missing functionality for job based recompilation

BUG=v8:3608
R=bmeurer@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/816363003

Cr-Commit-Position: refs/heads/master@{#25925}

[turbofan] Cleanup use of virtual, OVERRIDE, FINAL.

Following the Google/Chromium coding style wrt. virtual, OVERRIDE and
FINAL specifications.

TEST=unittests
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/816453005

Cr-Commit-Position: refs/heads/master@{#25924}

Use weak cell in monomorphic KeyedStore IC.

BUG=v8:3629
LOG=N

Review URL: https://codereview.chromium.org/817873003

Cr-Commit-Position: refs/heads/master@{#25923}

[turbofan] Introduce CommonOperatorReducer.

The CommonOperatorReducer currently takes care of redundant Phis,
EffectPhis and Selects. This functionality overlaps with ControlReducer,
but is required to make certain optimizations effective, since the
ControlReducer only runs really early and really late in the pipeline
and therefore other reducers aren't reapplied properly after redundant
phi/select elimination.

TEST=unittests
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/817243003

Cr-Commit-Position: refs/heads/master@{#25922}

Work-around to make webkit test suite work with optdebug==2.

The test driver doesn't know at the moment if optdebug 1 or 2 has been used (the first is used on the bots, the second
locally in quickcheck). It can't know therefore if slow
asserts can be enabled or not. Trying to enable them leads
to a warning if they weren't compiled, which causes webkit
1:1 text comparison to fail.

Review URL: https://codereview.chromium.org/819033002

Cr-Commit-Position: refs/heads/master@{#25921}

Do not use out of range visitor ids.

BUG=

Review URL: https://codereview.chromium.org/822693002

Cr-Commit-Position: refs/heads/master@{#25920}

[turbofan] Materialize the correct kind of constant for bit 1.

Bit 1 should be represented as Int32Constant 1 after simplified
lowering, but OneConstant returns NumberConstant 1.0.

R=jochen@chromium.org, hpayer@chromium.org

Review URL: https://codereview.chromium.org/820993002

Cr-Commit-Position: refs/heads/master@{#25919}

Revert "Retain maps for several garbage collections"

This reverts commit 2bc756e4b36160595c811c5433d0238ae5192525
because of performance regression in kraken.

BUG=chromium:444232
LOG=N
TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/816353002

Cr-Commit-Position: refs/heads/master@{#25918}

Keep AllocationSpace and ObjectSpace enums in sync.

BUG=

Review URL: https://codereview.chromium.org/806693011

Cr-Commit-Position: refs/heads/master@{#25917}

[turbofan] Correctify lowering of Uint8ClampedArray buffer access.

TEST=mjsunit/compiler/regress-444508.js
BUG=chromium:444508
LOG=y
R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/794013004

Cr-Commit-Position: refs/heads/master@{#25916}

[turbofan] Improve typing of ToBoolean.

According to ES6 draft, revision 29 (2014-12-06), section 7.1.2,
ToBoolean yields true for true, detectable receivers (the ES6 Object
type), symbols and numbers except -0, +0 and NaN.

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/807663006

Cr-Commit-Position: refs/heads/master@{#25915}

X87: fix one test case failure under debug mode.

  This issue is exposed by CL https://codereview.chromium.org/807273003.

  The DeoptimizeIf(...) function will generate more Assembler code and the
  distance between the link point and the bind point is larger then near
  link distance (127) for labels.

BUG=

Review URL: https://codereview.chromium.org/820963002

Cr-Commit-Position: refs/heads/master@{#25914}

Make perf test runner more robust.

Convert all results to floats and log errors on failing
conversions. Otherwise these results bubble up into
buildbot.

TBR=tandrii@chromium.org
BUG=chromium:374740
LOG=n
NOTRY=true

Review URL: https://codereview.chromium.org/811483008

Cr-Commit-Position: refs/heads/master@{#25913}

Revert of Remove obsolete V8_INFINITY macro. (patchset #3 id:40001 of https://codereview.chromium.org/798413003/)

Reason for revert:
Speculative revert. This seems to block the current roll: https://codereview.chromium.org/819653003/

I retried several times, also with a new roll. The error is internal - but that doesn't make much of a difference.

Original issue's description:
> Remove obsolete V8_INFINITY macro.
>
> Use std::numeric_limits consistently.
>
> R=svenpanne@chromium.org
>
> Committed: https://crrev.com/31c66e2d53569c4e229d55483d28208491e73612
> Cr-Commit-Position: refs/heads/master@{#25897}

TBR=svenpanne@chromium.org,bmeurer@chromium.org
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/813813003

Cr-Commit-Position: refs/heads/master@{#25912}

Revert of [mips] Fix typos introduced by previous commit. (patchset #1 id:1 of https://codereview.chromium.org/814203002/)

Reason for revert:
Needed in order to revert https://codereview.chromium.org/798413003

Original issue's description:
> [mips] Fix typos introduced by previous commit.
>
> R=svenpanne@chromium.org
>
> Committed: https://crrev.com/0c96a8b19730e79bc9cae08f3d86755c7b7c962e
> Cr-Commit-Position: refs/heads/master@{#25899}

TBR=svenpanne@chromium.org,bmeurer@chromium.org
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/822523002

Cr-Commit-Position: refs/heads/master@{#25911}

Support multiple interrupt requests in v8 API.

There might be a number of clients that would like to
setup an interrupt request on the Isolate.

The patch also deprecates ClearInterrupt API. As long as
the interrupt handler is called outside of locks there's no way
to guarantee that the handler will not be called after
ClearInterrupt was invoked as it might have already started execution.

Review URL: https://codereview.chromium.org/796623003

Cr-Commit-Position: refs/heads/master@{#25910}

Update V8 DEPS.

Rolling v8/buildtools to 23a4e2f545c7b6340d7e5a2b74801941b0a86535

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/812553008

Cr-Commit-Position: refs/heads/master@{#25909}

Use SetOwnElement when creating splice records in array length setter

This avoids touching the Array prototype, which may have been tampered with.

BUG=chromium:443982
LOG=n

Review URL: https://codereview.chromium.org/820503005

Cr-Commit-Position: refs/heads/master@{#25908}

Vector-based ICs also need to hold maps weakly.

Regular ICs in MONOMORPHIC and POLYMORPHIC state now hold onto maps with
WeakCells. Vector-based ICs should do the same.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/815953002

Cr-Commit-Position: refs/heads/master@{#25907}

MIPS64: Use weak cell in LoadGlobal handler.

Port bc0d2e237b1b624bed26ba849529b40329ea72a2

BUG=v8:3629
LOG=N
TBR=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/814193004

Cr-Commit-Position: refs/heads/master@{#25906}

Use weak cell to embed map in CompareNil IC.

BUG=v8:3629
LOG=N

Review URL: https://codereview.chromium.org/812353002

Cr-Commit-Position: refs/heads/master@{#25905}

[turbofan] false is also falsish.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/814833006

Cr-Commit-Position: refs/heads/master@{#25904}

Follow-on to hydrogen fix keyed loads with string keys for vector ics.

r25817 optimized hydrogen keyed loads with string keys.
(https://codereview.chromium.org/755513003).
This CL adapts that work for the vector-ic keyed load.

BUG=

Review URL: https://codereview.chromium.org/820673002

Cr-Commit-Position: refs/heads/master@{#25903}

Use weak cell in LoadGlobal handler.

BUG=v8:3629
LOG=N

Review URL: https://codereview.chromium.org/816923004

Cr-Commit-Position: refs/heads/master@{#25902}

[turbofan] Fix unsafe out-of-bounds check for checked loads/stores.

BUG=chromium:443744
LOG=y
TEST=mjsunit/compiler/regress-443744
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/804993004

Cr-Commit-Position: refs/heads/master@{#25901}

Improved --trace-opt output a bit.

This ensures that we always have a kind of "brace" around the actual compilation
with --trace-opt. Previously this was coupled to --trace-hydrogen for
Crankshaft, and there was no output at the start of the compilation for
TurboFan.

Removed redundant "[completed...]" output: Whenever the compilation was
successful, we have already printed "[optimizing...took...]".

Output total TurboFanning time with --trace-opt, too (basically as graph
building time, this is rather arbitrary).

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/819613002

Cr-Commit-Position: refs/heads/master@{#25900}

[mips] Fix typos introduced by previous commit.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/814203002

Cr-Commit-Position: refs/heads/master@{#25899}

Make FlushICache NOP for Nvidia Denver CPU's.

Denver supports a coherent cache mechanism. There is no need to clean
the D cache and invalidate I cache. MTS has to check the translation
anytime there is an I cache invalidate and this time can be saved by
making FlushICache a NOP.

The patch improves Octane by roughly 3-4% on Denver.

Review URL: https://codereview.chromium.org/797233002

Cr-Commit-Position: refs/heads/master@{#25898}

Remove obsolete V8_INFINITY macro.

Use std::numeric_limits consistently.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/798413003

Cr-Commit-Position: refs/heads/master@{#25897}

[turbofan] Improve JSToBoolean typing.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/792013006

Cr-Commit-Position: refs/heads/master@{#25896}

Simplify scanner and generate better error message for legacy octals in templates

LOG=N
BUG=
R=arv@chromium.org, dslomov@chromium.org

Review URL: https://codereview.chromium.org/812163003

Cr-Commit-Position: refs/heads/master@{#25895}

Update V8 DEPS.

Rolling v8/third_party/icu to 51c1a4ce5f362676aa1f1cfdb5b7e52edabfa5aa

TBR=machenbach@chromium.org
BUG=

Review URL: https://codereview.chromium.org/816763003

Cr-Commit-Position: refs/heads/master@{#25894}

Define SDKROOT for Mac

otherwise, the clang we ship doesn't work

BUG=none
R=adamk@chromium.org,thakis@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/792783006

Cr-Commit-Position: refs/heads/master@{#25893}

Ship ES6 template literals

BUG=v8:3230
LOG=Y
R=dslomov@chromium.org, caitpotter88@gmail.com

Review URL: https://codereview.chromium.org/808413004

Cr-Commit-Position: refs/heads/master@{#25892}

ES6 template literals should not use legacy octal strings

Correctly handle SyntaxErrors in escape sequences.

BUG=v8:3736
LOG=Y
R=dslomov@chromium.org, caitpotter88@gmail.com

Review URL: https://codereview.chromium.org/811113002

Cr-Commit-Position: refs/heads/master@{#25891}

Reland Shrink initial old generation size based on new space survival rate.

I picked a more conservative start value this time of half max old generation size.

BUG=

Review URL: https://codereview.chromium.org/804323004

Cr-Commit-Position: refs/heads/master@{#25890}

Phantom references support internal fields

BUG=

Review URL: https://codereview.chromium.org/753553002

Cr-Commit-Position: refs/heads/master@{#25889}

Revert of [turbofan] simplify gap ordering (patchset #2 id:20001 of https://codereview.chromium.org/810013002/)

Reason for revert:
Revert for breaking emscripten bullet with turbofan on android arm64.

Original issue's description:
> [turbofan] simplify gap ordering
>
> BUG=
>
> Committed: https://crrev.com/70b5eb47b39acbf31746f4a116a9b3ce2730218a
> Cr-Commit-Position: refs/heads/master@{#25865}

TBR=bmeurer@chromium.org,dcarney@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/815743002

Cr-Commit-Position: refs/heads/master@{#25888}

Retain maps for several garbage collections

This keeps dying maps alive for FLAG_retain_maps_for_n_gc garbage collections to increase chances of them being reused for new objects in future.

BUG=v8:3664
LOG=N
TEST=cctest/test-heap/MapRetaining

Review URL: https://codereview.chromium.org/794583003

Cr-Commit-Position: refs/heads/master@{#25887}

Revert of [turbofan] Skip printing of empty gap moves. (patchset #1 id:1 of https://codereview.chromium.org/812983002/)

Reason for revert:
Needed to revert https://chromium.googlesource.com/v8/v8/+/70b5eb47b39acbf31746f4a116a9b3ce2730218a

Original issue's description:
> [turbofan] Skip printing of empty gap moves.
>
> R=bmeurer@chromium.org
> BUG=

TBR=bmeurer@chromium.org,titzer@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/816703002

Cr-Commit-Position: refs/heads/master@{#25886}

Reduce impact of HParameter inputs on HPhi representation selection

This is a follow-up to r25153.

BUG=v8:3766
LOG=n

Review URL: https://codereview.chromium.org/807273003

Cr-Commit-Position: refs/heads/master@{#25885}

Revert of [turbofan] remove control field from instruction (patchset #1 id:1 of https://codereview.chromium.org/810023002/)

Reason for revert:
Needed to revert https://chromium.googlesource.com/v8/v8/+/70b5eb47b39acbf31746f4a116a9b3ce2730218a

Original issue's description:
> [turbofan] remove control field from instruction
>
> R=titzer@chromium.org
> BUG=
>
> Committed: https://crrev.com/7b9cb2eb3764d0c807c669e397fc3b84fbefb175
> Cr-Commit-Position: refs/heads/master@{#25866}

TBR=titzer@chromium.org,dcarney@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/814043002

Cr-Commit-Position: refs/heads/master@{#25884}

Temporarily disable mjsunit/debug-stepframe for GC stress until
crash is fixed.

BUG=v8:3776
LOG=N
TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/812283004

Cr-Commit-Position: refs/heads/master@{#25883}

Monomorphic and polymorphic ICs with cleared maps should not go megamorphic.

BUG=v8:3663
TEST=cctest/test-heap/MonomorphicStaysMonomorphicAfterGC
LOG=N

Review URL: https://codereview.chromium.org/816653002

Cr-Commit-Position: refs/heads/master@{#25882}

Make sure backing store pointer in handles get cleared after use in factory.

BUG=442710
LOG=n

Review URL: https://codereview.chromium.org/813023002

Cr-Commit-Position: refs/heads/master@{#25881}

Fixed -fsanitize=float-cast-overflow problems.

BUG=v8:3773
LOG=y

Review URL: https://codereview.chromium.org/809293003

Cr-Commit-Position: refs/heads/master@{#25880}

Don't use AddSubstring for external natives

The input string is not necessarily zero terminated

BUG=chromium:443230
R=adamk@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/795383003

Cr-Commit-Position: refs/heads/master@{#25879}

[turbofan] Skip printing of empty gap moves.

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/812983002

Cr-Commit-Position: refs/heads/master@{#25878}

Crash with an error message when ICU data files are missing

Before, we'd just crash.

BUG=v8:3348
R=svenpanne@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/807313003

Cr-Commit-Position: refs/heads/master@{#25877}

Add script to check for clusterfuzz issues.

BUG=443153
LOG=n
NOTRY=true

Review URL: https://codereview.chromium.org/811073002

Cr-Commit-Position: refs/heads/master@{#25876}

[turbofan] Further reduction of Word32And with Int32Add.

- (y * (K << L) + x) & (-1 << L) => (x & (-1 << L)) + y * (K << L)
- (x + y * (K << L)) & (-1 << L) => (x & (-1 << L)) + y * (K << L)

TEST=unittests
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/811293002

Cr-Commit-Position: refs/heads/master@{#25875}

[turbofan] Also run MachineOperatorReducer in SimplifiedLoweringPhase.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/809313002

Cr-Commit-Position: refs/heads/master@{#25874}

Mozilla test status: Assign bug number to quadratic assembler arm64 issue & misc regexp cleanup

R=marja@chromium.org
BUG=

Review URL: https://codereview.chromium.org/810053002

Cr-Commit-Position: refs/heads/master@{#25873}

Revert of ES6 computed property names (patchset #1 id:1 of https://codereview.chromium.org/792233008/)

Reason for revert:
[sheriff] Still crashes on win32 (XP):
http://build.chromium.org/p/client.v8/builders/V8%20Win32%20-%201/builds/1380

Original issue's description:
> ES6 computed property names
>
> This adds support for computed property names, under the flag
> --harmony-computed-property-names, for both object literals and
> classes.
>
> This is a revert of the revert, a76419f0f497db156eb1010e9b4be398951280cb.
>
> This changes to do an early bailout in
> HOptimizedGraphBuilder::VisitObjectLiteral instead of doing that in the later
> loop.
>
> BUG=v8:3754
> LOG=Y
> TBR=dslomov@chromium.org

TBR=dslomov@chromium.org,arv@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=v8:3754

Review URL: https://codereview.chromium.org/811593004

Cr-Commit-Position: refs/heads/master@{#25872}

Whitespace change to trigger bots.

Cr-Commit-Position: refs/heads/master@{#25871}

Whitespace change to trigger bots.

Cr-Commit-Position: refs/heads/master@{#25870}

Whitespace change to trigger bots.

Cr-Commit-Position: refs/heads/master@{#25869}

ES6 computed property names

This adds support for computed property names, under the flag
--harmony-computed-property-names, for both object literals and
classes.

This is a revert of the revert, a76419f0f497db156eb1010e9b4be398951280cb.

This changes to do an early bailout in
HOptimizedGraphBuilder::VisitObjectLiteral instead of doing that in the later
loop.

BUG=v8:3754
LOG=Y
TBR=dslomov@chromium.org

Review URL: https://codereview.chromium.org/792233008

Cr-Commit-Position: refs/heads/master@{#25868}

[turbofan] move assembly order to InstructionBlock

R=titzer@chromium.org

BUG=

Review URL: https://codereview.chromium.org/805263003

Cr-Commit-Position: refs/heads/master@{#25867}

[turbofan] remove control field from instruction

R=titzer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/810023002

Cr-Commit-Position: refs/heads/master@{#25866}

[turbofan] simplify gap ordering

BUG=

Review URL: https://codereview.chromium.org/810013002

Cr-Commit-Position: refs/heads/master@{#25865}

[turbofan] use START and END gap positions for constraints

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/798363007

Cr-Commit-Position: refs/heads/master@{#25864}

[turbofan] Improve reduction of Word32And and Int32Add.

TEST=unittests
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/816433002

Cr-Commit-Position: refs/heads/master@{#25863}

Revert of Shrink initial old generation size based on new space survival rate. (patchset #7 id:140001 of https://codereview.chromium.org/785593002/)

Reason for revert:
Performance regressions.

Original issue's description:
> Shrink initial old generation size based on new space  survival rate.
>
> BUG=
>
> Committed: https://crrev.com/37f9bb72b9c7ea4eccef6cb6533b3c42792fb5e6
> Cr-Commit-Position: refs/heads/master@{#25850}

TBR=jochen@chromium.org,ulan@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/813733002

Cr-Commit-Position: refs/heads/master@{#25862}

[turbofan] Recursively reduce new inputs of changed nodes.

The GraphReducer should recurse into new inputs after a node was
changed. Most of the reducers already assume this behavior, and it
mostly worked by accident in many cases.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/800073004

Cr-Commit-Position: refs/heads/master@{#25861}