This replaces the global remembered set with per-page remembered sets.

Each page in the old space, map space, and large object space keeps track of
the set of slots in the page pointing to the new space.

The data structure for storing slot sets is a two-level bitmap, which allows
us to remove the store buffer overflow and SCAN_ON_SCAVENGE logic.

Design doc: https://goo.gl/sMKCf7

BUG=chromium:578883
LOG=NO

Review URL: https://codereview.chromium.org/1608583002

Cr-Commit-Position: refs/heads/master@{#33806}

This speeds up base constructor instantiation by ~3x.

BUG=

Review URL: https://codereview.chromium.org/1673163002

Cr-Commit-Position: refs/heads/master@{#33805}

Useful for example for using atomicops_internal_portable.h on Android.

BUG=v8:4615
LOG=y

patch from issue 1525813002 at patchset 1 (http://crrev.com/1525813002#ps1)

Review URL: https://codereview.chromium.org/1637473003

Cr-Commit-Position: refs/heads/master@{#33804}

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1674023003

Cr-Commit-Position: refs/heads/master@{#33803}

The preallocated JSAccessorPropertyDescriptor, JSDataPropertyDescriptor and
JSIteratorResult had the constructor field unset, which in turn causes
GetCreationContext() to fail for those instances.

R=verwaest@chromium.org
BUG=v8:4738
LOG=n

Review URL: https://codereview.chromium.org/1676823002

Cr-Commit-Position: refs/heads/master@{#33802}

TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1674153002

Cr-Commit-Position: refs/heads/master@{#33801}

It's fine to use JS_OBJECT_TYPE for JSIteratorResult and only have a
preallocated initial map for them to avoid unnecessary polymorphism
from generators / builtin iterators. The instance type doesn't
provide any advantage, since we always have to treat JSIteratorResult
objects as regular JSObjects later.

R=yangguo@chromium.org
TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/1680513002

Cr-Commit-Position: refs/heads/master@{#33800}

Rolling v8/build/gyp to 57190fa278689da857c6dfd6b4886dbfddce98ce

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

Review URL: https://codereview.chromium.org/1679673002

Cr-Commit-Position: refs/heads/master@{#33799}

[api] Make ObjectTemplate::SetNativeDataProperty() work even if the ObjectTemplate does not have a constructor.

Previously ObjectTemplate::New() logic relied on the fact that all the accessor properties are already installed in the initial map of the function object of the constructor FunctionTemplate.
When the FunctionTemplate were instantiated the accessors of the instance templates from the whole inheritance chain were accumulated and added to the initial map.
ObjectTemplate::SetSetAccessor() used to explicitly ensure that the ObjectTemplate has a constructor and therefore an initial map to add all accessors to.

The new approach is to add all the accessors and data properties to the object exactly when the ObjectTemplate is instantiated. In order to keep it fast we now cache the object boilerplates in the Isolate::template_instantiations_cache (the former function_cache), so the object creation turns to be a deep copying of the boilerplate object.

BUG=chromium:579009
LOG=Y

Committed: https://crrev.com/6a118774244d087b5979e9291d628a994f21d59d
Cr-Commit-Position: refs/heads/master@{#33674}

Review URL: https://codereview.chromium.org/1642223003

Cr-Commit-Position: refs/heads/master@{#33798}

BUG=

Review URL: https://codereview.chromium.org/1627263002

Cr-Commit-Position: refs/heads/master@{#33797}

BUG=

Review URL: https://codereview.chromium.org/1628133002

Cr-Commit-Position: refs/heads/master@{#33796}

Rolling v8/tools/clang to f0dada1961030974d4da5591b1fef8cf42bded15

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

Review URL: https://codereview.chromium.org/1672993002

Cr-Commit-Position: refs/heads/master@{#33795}

  port 334d1794 (r33780)

  original commit message:
  This change should unify handling of finally blocks in Turbofan's
  AstGraphBuilder and in full-code. This should enable smooth deoptimization
  from finally blocks.

BUG=

Review URL: https://codereview.chromium.org/1675003002

Cr-Commit-Position: refs/heads/master@{#33794}

R=bradnelson@chromium.org
BUG=https://bugs.chromium.org/p/v8/issues/detail?id=4203
TEST=asm-wasm.js
LOG=N

Review URL: https://codereview.chromium.org/1675903002

Cr-Commit-Position: refs/heads/master@{#33793}

Port 334d1794

Original commit message:

    This change should unify handling of finally blocks in Turbofan's
    AstGraphBuilder and in full-code. This should enable smooth deoptimization
    from finally blocks.

R=jarin@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1669373002

Cr-Commit-Position: refs/heads/master@{#33792}

Cr-Commit-Position: refs/heads/master@{#33791}

BUG=
TEST=cctest/test-assembler-mips/min_max, cctest/test-assembler-mips/mina_maxa, cctest/test-assembler-mips64/min_max, cctest/test-assembler-mips64/mina_maxa

Review URL: https://codereview.chromium.org/1668143002

Cr-Commit-Position: refs/heads/master@{#33790}

We assume split-edge form throughout the register allocation pipeline,
so added validation in isel.

BUG=

Review URL: https://codereview.chromium.org/1668953002

Cr-Commit-Position: refs/heads/master@{#33789}

The call can be used by the embedder to provide information on the workers
executing background tasks.

BUG=chromium:524425
LOG=N

Review URL: https://codereview.chromium.org/1664203004

Cr-Commit-Position: refs/heads/master@{#33788}

Revert of [es7] refactor and fix Object.values() / Object.entries() (patchset #6 id:100001 of https://codereview.chromium.org/1637753004/ )

Reason for revert:
[Sheriff] Breaks gc stress:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20gc%20stress/builds/1642

Original issue's description:
> [es7] refactor and fix Object.values() / Object.entries()
>
> Previously, Object.values() and Object.entries() were piggy-backing on
> Object.keys(). This meant that they would pre-filter non-enumerable properties,
> violating the runtime behaviour of the methods. Unfortunately, this does not
> match the current proposal text.
>
> Also incorporates several tests verifying this behaviour based on tests included
> in the ChakraCore implementation.
>
> BUG=v8:4663
> LOG=N
> R=adamk@chromium.org, rossberg@chromium.org, littledan@chromium.org
>
> Committed: https://crrev.com/5c5ccd9d7f8693990d1a9eb26ba3a94f376dcf0b
> Cr-Commit-Position: refs/heads/master@{#33782}

TBR=littledan@chromium.org,adamk@chromium.org,cbruni@chromium.org,rossberg@chromium.org,caitpotter88@gmail.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4663

Review URL: https://codereview.chromium.org/1675663002

Cr-Commit-Position: refs/heads/master@{#33787}

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1671623005

Cr-Commit-Position: refs/heads/master@{#33786}

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1671653002

Cr-Commit-Position: refs/heads/master@{#33785}

Before:

REX.W cmpq r9,r8
setzl r8l
movzxbl r8,r8
REX.W cmpq r8,0x0
jz 185

After:

REX.W cmpq r9,r8
jnz 149

Review URL: https://codereview.chromium.org/1677503002

Cr-Commit-Position: refs/heads/master@{#33784}

To avoid returning a signaling NaN the result is multiplied by 1.0.

R=titzer@chromium.org, binji@chromium.org

BUG=4733
LOG=Y

Review URL: https://codereview.chromium.org/1673583002

Cr-Commit-Position: refs/heads/master@{#33783}

Previously, Object.values() and Object.entries() were piggy-backing on
Object.keys(). This meant that they would pre-filter non-enumerable properties,
violating the runtime behaviour of the methods. Unfortunately, this does not
match the current proposal text.

Also incorporates several tests verifying this behaviour based on tests included
in the ChakraCore implementation.

BUG=v8:4663
LOG=N
R=adamk@chromium.org, rossberg@chromium.org, littledan@chromium.org

Review URL: https://codereview.chromium.org/1637753004

Cr-Commit-Position: refs/heads/master@{#33782}

This makes the dispatch table similar to the builtins code list and makes
sure that the dispatch table does not move.

R=mstarzinger@chromium.org, rmcilroy@chromium.org

Review URL: https://codereview.chromium.org/1671813003

Cr-Commit-Position: refs/heads/master@{#33781}

This change should unify handling of finally blocks in Turbofan's
AstGraphBuilder and in full-code. This should enable smooth deoptimization
from finally blocks.

Review URL: https://codereview.chromium.org/1663323003

Cr-Commit-Position: refs/heads/master@{#33780}

This makes the field in question more generic by renaming it from the
previous "depth" to "data". Pure refactoring, no function change.

R=rmcilroy@chromium.org,yangguo@chromium.org

Review URL: https://codereview.chromium.org/1670983003

Cr-Commit-Position: refs/heads/master@{#33779}

The CL 33579 (https://codereview.chromium.org/1618343002) use code offsets instead of raw PC where possible.

But the offset maybe come from an optimized frame, not the un-optimized frame that FromCodeOffset and BreakIndexFromCodeOffset function expect.
So The offset from optimized frame can't be used in FromCodeOffset and  BreakIndexFromCodeOffset function.

This CL use the frame summary to find the corresponding code offset in unoptimized code according to Yang's suggestion.

Review URL: https://codereview.chromium.org/1663113002

Cr-Commit-Position: refs/heads/master@{#33778}

Trying to sort a string should throw a TypeError, proper handling
of elements just needs to get out of the way.

BUG=chromium:584188
LOG=n
R=cbruni@chromium.org

Review URL: https://codereview.chromium.org/1670153002

Cr-Commit-Position: refs/heads/master@{#33777}

To bring V8 into line with the proposed design changes in:

 https://github.com/WebAssembly/design/pull/489

R=ahaas@chromium.org,bradnelson@chromium.org
LOG=Y
BUG=chromium:575167
BUG=v8:4735

Review URL: https://codereview.chromium.org/1624323003

Cr-Commit-Position: refs/heads/master@{#33776}

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1668863002

Cr-Commit-Position: refs/heads/master@{#33775}

- drilldown lazy and recursive
- improve parsing

NOTRY=true

Review URL: https://codereview.chromium.org/1671883002

Cr-Commit-Position: refs/heads/master@{#33774}

The implementation of Object.getOwnPropertyDescriptor always called into
C++ anyway, so there's no need to have this JavaScript wrapper around at
all.

CQ_INCLUDE_TRYBOTS=tryserver.chromium.win:win_chromium_rel_ng
R=yangguo@chromium.org

Committed: https://crrev.com/3fdd37b028f4711d0f6dcb038f575ce08ef0cfa3
Cr-Commit-Position: refs/heads/master@{#33379}

Review URL: https://codereview.chromium.org/1606783002

Cr-Commit-Position: refs/heads/master@{#33773}

NOTRY=true
TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1668393004

Cr-Commit-Position: refs/heads/master@{#33772}

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

Review URL: https://codereview.chromium.org/1677483002

Cr-Commit-Position: refs/heads/master@{#33771}

R=bmeurer@chromium.org, domenic@chromium.org

Review URL: https://codereview.chromium.org/1670923003

Cr-Commit-Position: refs/heads/master@{#33770}

NOTRY=true

Review URL: https://codereview.chromium.org/1659043002

Cr-Commit-Position: refs/heads/master@{#33769}

- remove unused counters
- add "ic" prefix to all ic-counters
- add more counter: maps-created, global deopts (not used yet)

BUG=

Review URL: https://codereview.chromium.org/1553523002

Cr-Commit-Position: refs/heads/master@{#33768}

Review URL: https://codereview.chromium.org/1675433003

Cr-Commit-Position: refs/heads/master@{#33767}