[turbofan] use double temp registers for stack-stack swap on arm64

TBR=vogelheim@chromium.org

BUG=

Review URL: https://codereview.chromium.org/744743002

Cr-Commit-Position: refs/heads/master@{#25443}

Fix Regress3540 after r25441.

BUG=
TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/746443002

Cr-Commit-Position: refs/heads/master@{#25442}

Reserve code range block for evacuation.

If we run out of code range, then GC wouldn't be able to compact code space,
because it wouldn't be able to allocate a new page. This can cause code space
fragmentation and OOM crashes.

BUG=chromium:430118
LOG=Y

Review URL: https://codereview.chromium.org/742733002

Cr-Commit-Position: refs/heads/master@{#25441}

[turbofan] More aggressive reuse of spill slots in the register allocator.

BUG=

Review URL: https://codereview.chromium.org/725083004

Cr-Commit-Position: refs/heads/master@{#25440}

[turbofan]: More optimizations to add and subtract operations on x64

- Use "leal" for subtraction of integer constant when non-constant input to
  subtract is used more than once.
- Use "incl", "decl", and "addl" when they are smaller/cheaper than their
  leal/addl/subl equivalant.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/738073002

Cr-Commit-Position: refs/heads/master@{#25439}

[turbofan] remove redundant '& 0x1F' for shifts.

JavaScript shifts perform an implicit '& 0x1F' on their right operand, this
patch removes it when the underlying architecture already does it.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/732103002

Cr-Commit-Position: refs/heads/master@{#25438}

Enable TurboFan for Win64 targets.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/743963002

Cr-Commit-Position: refs/heads/master@{#25437}

Fix lower bound violation

R=jarin@chromium.org
BUG=433332
LOG=N

Review URL: https://codereview.chromium.org/739563002

Cr-Commit-Position: refs/heads/master@{#25436}

Disable classes in sloppy mode unless --harmony-sloppy is set

Also clean up flag names a little.

Baseline: https://codereview.chromium.org/713413003/

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

Review URL: https://codereview.chromium.org/722203006

Cr-Commit-Position: refs/heads/master@{#25435}

Conditional flags for tests - set JS stack size for simulators.

There are separated JS and C stacks on simulators so for some stack
extensive tests (like mozilla/js1_5/extensions/regress-355497) might
cause a C stack overflow and that overflow is not caught by V8. It is
not an issue on real HW. Increasing the C stack also solves the problem
but we have already FLAG_sim_stack_size flag to control the JS stack
size.

This patch makes it possible to add flags to tests conditionally in
.status files.

TEST=mozilla/js1_5/extensions/regress-355497
BUG=v8:3152
LOG=N

Review URL: https://codereview.chromium.org/735723006

Cr-Commit-Position: refs/heads/master@{#25434}

Implement log10 via fdlibm port.

R=rtoy@chromium.org
BUG=v8:3579
LOG=N

Review URL: https://codereview.chromium.org/739913003

Cr-Commit-Position: refs/heads/master@{#25433}

Revert of Rename String.prototype.contains to 'includes'. (patchset #1 id:1 of https://codereview.chromium.org/742963002/)

Reason for revert:
Breaks test262-es6:
http://build.chromium.org/p/client.v8/builders/V8%20Linux/builds/1289

Original issue's description:
> Rename String.prototype.contains to 'includes'.
>
> Per TC39 Nov 2014 decison.
>
> R=arv@chromium.org,yangguo@chromium.org
> LOG=Y
>
> Committed: https://chromium.googlesource.com/v8/v8/+/b5379216e23ff0ec734e70361dd07057c2421c96

TBR=arv@chromium.org,yangguo@chromium.org,dslomov@chromium.org
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/745543002

Cr-Commit-Position: refs/heads/master@{#25432}

Remove --clever-optimizations

We should always be clever

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

Review URL: https://codereview.chromium.org/723023003

Cr-Commit-Position: refs/heads/master@{#25431}

Rename String.prototype.contains to 'includes'.

Per TC39 Nov 2014 decison.

R=arv@chromium.org,yangguo@chromium.org
LOG=Y

Review URL: https://codereview.chromium.org/742963002

Cr-Commit-Position: refs/heads/master@{#25430}

Remove Weak{Map,Set}.prototype.clear.

Per Nov 2014 TC39 decision.

R=adamk@chromium.org
LOG=Y

Review URL: https://codereview.chromium.org/739303002

Cr-Commit-Position: refs/heads/master@{#25429}

Reduce ErrorsFutureStrictReservedWords test to make it faster

Since checking all possible combinations is taking so long this
reduces the test to test the odd cases (let, yield and static) as
well as a single ordinary case.

BUG=v8:3707
LOG=n

Review URL: https://codereview.chromium.org/724713004

Cr-Commit-Position: refs/heads/master@{#25428}

Removed unnecessary generalization of all fields in Map::GeneralizeRepresentation() (introduced in r25082).

This generalization caused unnecessary map deprecation when the transition tree of the split map is full.

BUG=chromium:431807
LOG=N

Review URL: https://codereview.chromium.org/736953003

Cr-Commit-Position: refs/heads/master@{#25427}

[turbofan]: delay ssa deconstruction in register allocator

BUG=

Review URL: https://codereview.chromium.org/738853002

Cr-Commit-Position: refs/heads/master@{#25426}

MIPS64: Prepare additonal code for turbofan landing.

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

Review URL: https://codereview.chromium.org/735033002

Cr-Commit-Position: refs/heads/master@{#25425}

MIPS64: Add turbofan support for mips64.

TEST=
BUG=
R=danno@chromium.org, paul.lind@imgtec.com

Review URL: https://codereview.chromium.org/732403002

Cr-Commit-Position: refs/heads/master@{#25424}

Allow stepping into Object.observe handlers.

BUG=chromium:432468
R=yangguo@chromium.org, adamk@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/739523002

Cr-Commit-Position: refs/heads/master@{#25423}

One instead of two runtime calls when initializing regexp.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/719403005

Cr-Commit-Position: refs/heads/master@{#25422}

Revert "Re-land r25392 Use a stub in crankshaft for grow store arrays."

Due to performance issue.
TBR=danno@chromium.org

Review URL: https://codereview.chromium.org/735323002

Cr-Commit-Position: refs/heads/master@{#25421}

Enable "strict mode"; for debugger scripts

BUG=v8:3708

Review URL: https://codereview.chromium.org/736583007

Cr-Commit-Position: refs/heads/master@{#25420}

Update default trybots.

Add new gn trybot and remove nosnap dbg for being too slow.
It can be used on demand.

BUG=chromium:353487
LOG=n

Review URL: https://codereview.chromium.org/743643002

Cr-Commit-Position: refs/heads/master@{#25419}

MIPS: Skip some tests on big-endian boards.

Skip one hard fail, and two frequent flakes while we investigate.

BUG=
NOTRY=true

Review URL: https://codereview.chromium.org/728653004

Cr-Commit-Position: refs/heads/master@{#25418}

PropertyDetails cleanup: NORMAL property type merged with FIELD.

First step towards replacing PropertyType with two enums: {DATA,ACCESSOR} x {CONST,WRITABLE}.

Review URL: https://codereview.chromium.org/733253004

Cr-Commit-Position: refs/heads/master@{#25417}

Do fewer encoding checks in FlatStringReader used in the JSON stringifier.

R=ishell@chromium.org

Review URL: https://codereview.chromium.org/740673002

Cr-Commit-Position: refs/heads/master@{#25416}

Fix Unhandled ReferenceError in debug-debugger.js

This fixes following exception in Sky on attempt to set a breakpoint
"Unhandled: Uncaught ReferenceError: break_point is not defined"
I think this happens in Sky but not in Chrome because Sky scripts are executed in strict mode.

BUG=None
LOG=N
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/741683002

Cr-Commit-Position: refs/heads/master@{#25415}

X87: Re-land r25392 Use a stub in crankshaft for grow store arrays.

port 47f55baeaff0d59366772db95b6c0328a216f611 (r25397)

original commit message:

  Re-land r25392 Use a stub in crankshaft for grow store arrays.

  Code was vulnerable to different evaluation order in Clang.

BUG=

Review URL: https://codereview.chromium.org/739823002

Cr-Commit-Position: refs/heads/master@{#25414}

fix typo in pipeline.cc

TBR=bmeurer@chromium.org

BUG=

Review URL: https://codereview.chromium.org/743603003

Cr-Commit-Position: refs/heads/master@{#25413}

[turbofan] Smartify typing of NumberToInt32 and NumberToUint32.

According to ES5 9.5 and 9.6, NaN, -inf, +inf, -0 and 0 all truncate to
zero for both ToInt32 and ToUint32, so we can be a lot smarter in the
typer, loosing less information upon truncation (i.e. x | 0 and x >>> 0).

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/739743003

Cr-Commit-Position: refs/heads/master@{#25412}

Revert "Forward declaration for Isolate / Platform in libplatform.h." and "Fixes d8 on windows following.".

This reverts commit 0f57ce8f1a3d6b4f3a4b65739d719b8467ff5d9c.
and 3245b8cb832f4a948aff9fb1c271cc08c4690d3b for breaking Chromium
compile.

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/743533003

Cr-Commit-Position: refs/heads/master@{#25411}

Implement ES6 String.raw behind --harmony-templates

BUG=

Review URL: https://codereview.chromium.org/731573004

Cr-Commit-Position: refs/heads/master@{#25410}

Fixes d8 on windows following.

Broke by https://codereview.chromium.org/740493002/

BUG=
NOTRY=true
NOTREECHECKS=true

Review URL: https://codereview.chromium.org/734853004

Cr-Commit-Position: refs/heads/master@{#25409}

Forward declaration for Isolate / Platform in libplatform.h.

Reduces dependencies on #include files, making it easier for other
build systems to include this library.

BUG=

Review URL: https://codereview.chromium.org/740493002

Cr-Commit-Position: refs/heads/master@{#25408}

Classes: Expand test to cover strict runtime behavior

This tests that the extends expression is treated as strict at
runtime and not just at parse time.

BUG=v8:3330
LOG=Y
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/729323003

Cr-Commit-Position: refs/heads/master@{#25407}

harmony-scoping: better error messages for let declarations in sloppy mode.

R=rossberg@chromium.org
BUG=v8:2198
LOG=N

Review URL: https://codereview.chromium.org/713413003

Cr-Commit-Position: refs/heads/master@{#25406}

Copy unittests binary in android-sync.sh

Without this change, `make android_arm.release.check` fails since the
unittests binary does not exist on the device.

BUG=v8:3695
LOG=

Review URL: https://codereview.chromium.org/722373003

Cr-Commit-Position: refs/heads/master@{#25405}

MIPS: Re-land r25392 Use a stub in crankshaft for grow store arrays.

Port 47f55baeaff0d59366772db95b6c0328a216f611

Original commit message:
Code was vulnerable to different evaluation order in Clang.

BUG=
R=paul.lind@imgtec.com

Review URL: https://codereview.chromium.org/735783002

Patch from Balazs Kilvady <balazs.kilvady@imgtec.com>.

Cr-Commit-Position: refs/heads/master@{#25404}

Use ZoneVector instead of ZoneList in the graph builder.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/742433002

Cr-Commit-Position: refs/heads/master@{#25403}

v8::String::Concat must not throw.

R=dcarney@chromium.org
BUG=chromium:420240
LOG=Y
API=v8::String::Concat may return empty handle on overflow.

Review URL: https://codereview.chromium.org/735763002

Cr-Commit-Position: refs/heads/master@{#25402}

Remove ambiguous getter for operator value counts.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/735583003

Cr-Commit-Position: refs/heads/master@{#25401}

Fix disabling all break points from within the debug event callback.

BUG=chromium:432493
LOG=Y

Review URL: https://codereview.chromium.org/728103008

Cr-Commit-Position: refs/heads/master@{#25400}

Fix loop information computation for floating loops.

R=jarin@chromium.org
TEST=cctest/test-scheduler/LoopedFloatingDiamond3

Review URL: https://codereview.chromium.org/726953002

Cr-Commit-Position: refs/heads/master@{#25399}

Prototype for a client-side performance trybot script.

BUG=chromium:374740
LOG=n
TEST=tools/try_perf.py sunspider octane
R=phajdan.jr@chromium.org

Review URL: https://codereview.chromium.org/734403002

Cr-Commit-Position: refs/heads/master@{#25398}

Re-land r25392 Use a stub in crankshaft for grow store arrays.

Code was vulnerable to different evaluation order in Clang.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/726693004

Cr-Commit-Position: refs/heads/master@{#25397}

Use 16 instead of 4 for determining member offsets.

This avoids UBSan warnings about unaligned memory access.

BUG=

Review URL: https://codereview.chromium.org/734873002

Cr-Commit-Position: refs/heads/master@{#25396}

Fix include mistakes

1) Missing <stdio.h> while using fopen, fclose, fseek etc
2) platform-linux.cc includes <sys/types.h> wtice

BUG=v8:3691

Review URL: https://codereview.chromium.org/716123003

Cr-Commit-Position: refs/heads/master@{#25395}

Fix IC handler cache clearing for JSBuiltinsObject

The clearing mechanism relies on comparing the cached handler with the installed handler. If we try to preserve monomorphism by pretending that the IC was in uninitialized state, then it will go premonomorphic first, which means on the next miss there's no installed handler available to compare against. Instead, pretend it was premonomorphic, so the comparison will happen right away, will fail as it should, and the cached handler will be cleared.

Thanks to Weiliang for starting the investigation that led to this.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/730383002

Cr-Commit-Position: refs/heads/master@{#25394}

Revert "Use a stub in crankshaft for grow store arrays."

This reverts commit d40204f84c0f6fad171ba8ace587f902bd5b14bc.

TBR=danno@chromium.org

Review URL: https://codereview.chromium.org/735653003

Cr-Commit-Position: refs/heads/master@{#25393}

Use a stub in crankshaft for grow store arrays.

We were deopting without learning anything.

BUG=v8:3417
LOG=N
R=danno@chromium.org

Review URL: https://codereview.chromium.org/368263003

Cr-Commit-Position: refs/heads/master@{#25392}

Use FlatStringReader in JSON stringifier.

R=ishell@chromium.org

Review URL: https://codereview.chromium.org/736543003

Cr-Commit-Position: refs/heads/master@{#25391}

[turbofan] Push JSToNumber conversions into Phis.

This essentially performs the following transformation

  JSToNumber(phi(x1,...,xn,control):primitive)
    => phi(JSToNumber(x1),...,JSToNumber(xn),control):number

which is similar to what we already do for JSToBoolean.

TEST=mjsunit/asm
R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/732463003

Cr-Commit-Position: refs/heads/master@{#25390}

Allow stepping into Promise handlers.

BUG=chromium:432468
R=yangguo@chromium.org, adamk@chromium.org, arv@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/734163002

Cr-Commit-Position: refs/heads/master@{#25389}

[turbofan] Avoid useless sign extension after sign extended load.

TEST=unittests
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/735623002

Cr-Commit-Position: refs/heads/master@{#25388}

Hydrogen should recognize literal smi arrays as fast literals.

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/726423002

Cr-Commit-Position: refs/heads/master@{#25387}

[x64] Recognize MOVSXBL.

TEST=mjsunit/asm
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/728103007

Cr-Commit-Position: refs/heads/master@{#25386}

[x64] Recognize MOVSXWL.

Also add some debug code to verify correct zero extension of 32-bit
moves.

TEST=mjsunit/asm
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/736623002

Cr-Commit-Position: refs/heads/master@{#25385}

Add a cctest for using a C++ FunctionCallback as an Object.observe observer

R=rossberg@chromium.org
BUG=v8:3076
LOG=n

Review URL: https://codereview.chromium.org/733483003

Cr-Commit-Position: refs/heads/master@{#25384}

harmony-scoping: Implement debugger support for script scope.

We add a new ScopeType, ScopeType.Script. The scope with
ScopeType.Script is always present in the scope chain (ScopeIterator
fakes it if neededi - i.e. if ScriptContext for a script has not been
allocated since that script has no lexical declarations).
ScriptScope reflects ScriptContextTable.

R=yurys@chromium.org,yangguo@chromium.org
BUG=v8:3690
LOG=N

Review URL: https://codereview.chromium.org/726643002

Cr-Commit-Position: refs/heads/master@{#25383}

[turbofan] add ForTesting to pipeline entry points that are for testing only.

R=bmeurer@chromium.org

BUG=

Review URL: https://codereview.chromium.org/727373002

Cr-Commit-Position: refs/heads/master@{#25382}

[turbofan] More useful typing for And, Or and Shr.

BUG=

Review URL: https://codereview.chromium.org/714413004

Cr-Commit-Position: refs/heads/master@{#25381}

Expose internal properties of map/set iterators via mirrors.

R=yangguo@chromium.org, vsevik
LOG=Y

Committed: https://code.google.com/p/v8/source/detail?r=d5f5d38f73f43eba9658d91ffbe511af8c340d78

Review URL: https://codereview.chromium.org/710273002

Cr-Commit-Position: refs/heads/master@{#25380}

[turbofan] move register allocation phases to pipeline

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/727323002

Cr-Commit-Position: refs/heads/master@{#25379}

Reland "Soft fail for invalid cache data."

Review URL: https://codereview.chromium.org/733023003

Cr-Commit-Position: refs/heads/master@{#25378}

[turbofan] Smartify the GraphReducer.

Don't use the generic algorithm, but instead start going into the
direction of ControlReducer, using a stack plus a revisit queue to
not miss any more possibilities for reductions anymore.

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

Committed: https://chromium.googlesource.com/v8/v8/+/f047507370634155113d78685372630a230613cf

Committed: https://chromium.googlesource.com/v8/v8/+/6e148989a4227a5290a7f8ca72c71f5740870afe

Review URL: https://codereview.chromium.org/726513002

Cr-Commit-Position: refs/heads/master@{#25377}

[turbofan] Fix pushing of JSToBooleans into Phis.

Now we actually implement it the way it is meant to be, that is:

  JSToBoolean(Phi(x1,...,xn):primitive)
    => Phi(JSToBoolean(x1),...,JSToBoolean(xn)):boolean

This also fixes the endless recursion within JSTypedLowering when
the GraphReducer does all possible reductions instead of using the
generic algorithm.

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/730043002

Cr-Commit-Position: refs/heads/master@{#25376}

[turbofan] Factor out common code between ReduceSelect and ReduceBranch in ControlReducer.

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/734593003

Cr-Commit-Position: refs/heads/master@{#25375}

Fix Windows build after 25373

R=bmeurer@chromium.org
TBR=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/733783003

Cr-Commit-Position: refs/heads/master@{#25374}

Generalize ScaledWithOffsetMatcher to support 64 bits

Preparation for supporting more addressing modes in instruction selection.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/729853005

Cr-Commit-Position: refs/heads/master@{#25373}

Remove left-over generated runtime test from mjsunit.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/734633002

Cr-Commit-Position: refs/heads/master@{#25372}

Fix one more missing c0_ < 0 check in scanner

BUG=chromium:433766
LOG=n
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/731953003

Cr-Commit-Position: refs/heads/master@{#25371}

Fix concurrent sweeping in predictable mode and bring --concurrent-sweeping flag back.

BUG=
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/726363002

Cr-Commit-Position: refs/heads/master@{#25370}

Added --trace_idle_notification_verbose which prints out the idle notificatino heap state.

BUG=
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/732473002

Cr-Commit-Position: refs/heads/master@{#25369}

[turbofan] Remove int32 narrowing during typed lowering.

With Int32Add we lose the int/uint distinction, so later, in simplified lowering we can make a wrong decision. E.g., see the attached test case, where we lower NumberAdd -> Int32Add because inputs are Uint32, but during simplified lowering we change the inputs to Int32, so we get a wrong result.

Simplified lowering will lower the NumberAdd operations anyway, so we should lose performance.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/721723004

Cr-Commit-Position: refs/heads/master@{#25368}

Reland "Optimize function across closures." (again).

Review URL: https://codereview.chromium.org/707463002

Cr-Commit-Position: refs/heads/master@{#25367}

Classes: Add support for stepping through default constructors

If a class extends another class and it doesn't provide a constructor,
one is created for them. We therefore need to ensure that stepping into
the constructor steps into the super class constructor.

BUG=v8:3674
LOG=Y
R=dslomov@chromium.org, aandrey , yurys

Review URL: https://codereview.chromium.org/725983002

Cr-Commit-Position: refs/heads/master@{#25366}

Let git ignore the third_party dir to avoid unnecessary clean-ups.

BUG=chromium:433273
LOG=n
NOTRY=true

Review URL: https://codereview.chromium.org/728983004

Cr-Commit-Position: refs/heads/master@{#25365}

Throw as per spec when modifying an Array with builtin methods

BUG=v8:3684
LOG=n

Review URL: https://codereview.chromium.org/726773002

Cr-Commit-Position: refs/heads/master@{#25364}

Fix desugaring of let bindings in for loops to handle continue properly

This requires putting the original loop's body inside an inner for loop (with
the same labels as the original loop) and re-binding the temp variables in its
"next" expression. A second flag is added to the desugared code to ensure the
loop body executes at most once per loop.

BUG=v8:3683
LOG=y

Review URL: https://codereview.chromium.org/720863002

Cr-Commit-Position: refs/heads/master@{#25363}

Implement ES6 Template Literals

BUG=v8:3230

Review URL: https://codereview.chromium.org/663683006

Cr-Commit-Position: refs/heads/master@{#25362}

[turbofan] refactor pipeline to use hydrogen like Run calls

BUG=

Review URL: https://codereview.chromium.org/727733002

Cr-Commit-Position: refs/heads/master@{#25361}

Classes: Implement correct name binding

Named class declarations and class expression have a const binding for
the name that is in TDZ for the extends expression.

BUG=v8:3330
LOG=Y
R=dslomov@chromium.org, adamk

Review URL: https://codereview.chromium.org/722793005

Cr-Commit-Position: refs/heads/master@{#25360}

Extend typed lowering to cover JSStrictEqual on differing types.

R=rossberg@chromium.org, titzer@chromium.org
TEST=unittests/JSTypedLoweringTest.JSStrictEqualWithTheHole

Review URL: https://codereview.chromium.org/722223003

Cr-Commit-Position: refs/heads/master@{#25359}

Implement 'setVariableValue' for debugger block scopes.

R=aandrey@chromium.org, rossberg@chromium.org, yurys@chromium.org
BUG=v8:3690
LOG=N

Review URL: https://codereview.chromium.org/732543002

Cr-Commit-Position: refs/heads/master@{#25358}

Remove AstConstructionVisitor/AstNullVisitor

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/679943004

Cr-Commit-Position: refs/heads/master@{#25357}

Revert "[turbofan] Smartify the GraphReducer."

This reverts commit 6e148989a4227a5290a7f8ca72c71f5740870afe for
breaking Massive/Embenchen.

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/727743002

Cr-Commit-Position: refs/heads/master@{#25356}

Do not do field type tracking with GC stress.

R=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/718393004

Cr-Commit-Position: refs/heads/master@{#25355}

Make TurboFan inlining work without deoptimization.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/726823002

Cr-Commit-Position: refs/heads/master@{#25354}

Remove arguments arity check in mjsunit because it vastly slows down the tests.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/724133004

Cr-Commit-Position: refs/heads/master@{#25353}

Revert of Whitespace change to test CQ. (patchset #1 id:1 of https://codereview.chromium.org/725873002/)

Reason for revert:
Test revert.

Original issue's description:
> Whitespace change to test CQ.
>
> TBR=machenbach@chromium.org
>
> Committed: https://chromium.googlesource.com/v8/v8/+/42340bdfbd8b4f002257e55464f2e0b81c6ea424

TBR=
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/725893002

Cr-Commit-Position: refs/heads/master@{#25352}

Whitespace change to test CQ.

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/725873002

Cr-Commit-Position: refs/heads/master@{#25351}

[turbofan] small cleanups to aid register allocator debugging

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/727693002

Cr-Commit-Position: refs/heads/master@{#25350}

Fix releases script after git migration.

BUG=chromium:410721
LOG=n
TBR=tandrii@chromium.org
TEST=script_test.py

Review URL: https://codereview.chromium.org/725073002

Cr-Commit-Position: refs/heads/master@{#25349}

Move feedback slot allocation to post-pass

R=mvstanton@chromium.org, svenpanne@chromium.org

Review URL: https://codereview.chromium.org/670953003

Cr-Commit-Position: refs/heads/master@{#25348}

[turbofan] Optimize remainder of integer division by unknown power of two.

Drive-by-Fix: minint % 0 was broken on ARM, but we didn't notice because
there was no test covering that case...

TEST=msjunit
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/727673002

Cr-Commit-Position: refs/heads/master@{#25347}

Allow idle notification when incremental marking is turned off.

BUG=
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/725583005

Cr-Commit-Position: refs/heads/master@{#25346}

[turbofan] Smartify the GraphReducer.

Don't use the generic algorithm, but instead start going into the
direction of ControlReducer, using a stack plus a revisit queue to
not miss any more possibilities for reductions anymore.

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

Committed: https://chromium.googlesource.com/v8/v8/+/f047507370634155113d78685372630a230613cf

Review URL: https://codereview.chromium.org/726513002

Cr-Commit-Position: refs/heads/master@{#25345}

[arm] Fix UBFX detection.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/725063002

Cr-Commit-Position: refs/heads/master@{#25344}