The calling context is the second top-most non-debugger context on the
stack, but that's not necessarily the actually calling context, e.g.,
when a tail-call was used.

BUG=chromium:541703
R=verwaest@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/1431473003

Cr-Commit-Position: refs/heads/master@{#31719}

The BufferedRawMachineAssemblerTester takes care of storing and loading
parameters to and from memory for these test cases. By using the
BufferedRawMachineAssemblerTester the test cases become more readible.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1409013004

Cr-Commit-Position: refs/heads/master@{#31718}

This adds some initial support for keyed element access to fast,
non-holey JSArray objects.

Also renames PropertyAccessInfoFactory to AccessInfoFactory and
PropertyAccessMode to AccessMode.

R=jarin@chromium.org
BUG=v8:4470
LOG=n

Review URL: https://codereview.chromium.org/1418213010

Cr-Commit-Position: refs/heads/master@{#31717}

V8 zaps (writes 0xdeadbeef) over the mmapped regions when in debug mode.
This causes more resident size than displayed in tracing. So, This CL
adds an api to tell if zapping is done.

BUG=546492
LOG=Y

Review URL: https://codereview.chromium.org/1419523008

Cr-Commit-Position: refs/heads/master@{#31716}

Adds an optimization to not emit unnecessary jumps and dead code in If,
For, While, and do-while statments. When the value of condition is known
at compile time, the code is emitted only for the paths that can be taken.
For example, when the condition is known to be true in an if statmenet
only then block is generated.

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1414193006

Cr-Commit-Position: refs/heads/master@{#31715}

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

Review URL: https://codereview.chromium.org/1406113007

Cr-Commit-Position: refs/heads/master@{#31714}

This moves the optimization for variables loads targeting lookup slots
in DYNAMIC_GLOBAL and DYNAMIC_LOCAL mode into the AstGraphBuilder. This
way we implicitly get all optimizations that target global loads and
context loads for free.

R=bmeurer@chromium.org
BUG=v8:4513
LOG=n

Review URL: https://codereview.chromium.org/1424943008

Cr-Commit-Position: refs/heads/master@{#31713}

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1425693006

Cr-Commit-Position: refs/heads/master@{#31712}

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/1424703005

Cr-Commit-Position: refs/heads/master@{#31711}

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1425333002

Cr-Commit-Position: refs/heads/master@{#31710}

Revert of [es6] Fix Function and GeneratorFunction built-ins subclassing. (patchset #4 id:80001 of https://codereview.chromium.org/1428823002/ )

Reason for revert:
Buildbot failures

Original issue's description:
> [es6] Fix Function and GeneratorFunction built-ins subclassing.
>
> BUG=v8:3101, v8:3330
> LOG=Y
>
> Committed: https://crrev.com/99e7f872d3d0a5fb799dcbafb05537cda491314a
> Cr-Commit-Position: refs/heads/master@{#31708}

TBR=verwaest@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3101, v8:3330

Review URL: https://codereview.chromium.org/1413723008

Cr-Commit-Position: refs/heads/master@{#31709}

BUG=v8:3101, v8:3330
LOG=Y

Review URL: https://codereview.chromium.org/1428823002

Cr-Commit-Position: refs/heads/master@{#31708}

Cr-Commit-Position: refs/heads/master@{#31707}

This ports some code from chromium for using the bundled
toolchain.

BUG=chromium:548586
LOG=n

Review URL: https://codereview.chromium.org/1237803003

Cr-Commit-Position: refs/heads/master@{#31706}

Cr-Commit-Position: refs/heads/master@{#31705}

  port 4490ce85 (r31701).

  original commit message:
    Original issue's description:
    > [es6] Better support for built-ins subclassing.
    >
    > Create proper initial map for original constructor (new.target) instead of doing prototype
    > transition on the base constructor's initial map. This approach fixes in-object slack tracking
    > for subclass instances.
    > This CL also fixes subclassing from String.
    >
    > BUG=v8:3101, v8:3330
    > LOG=Y
    >
    > Committed: https://crrev.com/cd5f48302a502154a0106d12e3066bd563c6340c
    > Cr-Commit-Position: refs/heads/master@{#31680}

    It also fixes typed array map smashing done during typed array initialization.

BUG=

Review URL: https://codereview.chromium.org/1432483003

Cr-Commit-Position: refs/heads/master@{#31704}

The compiler can generate a named access for o[x] if x is a compile time
constant that can be turned into a name using ToName (limited to
primitive x values, because other ToName invocations might be observable),
or the KeyedLoadIC/KeyedStoreIC have gather constant name feedback for x
(i.e. the access always goes to the same symbol).

R=jarin@chromium.org
BUG=v8:4470
LOG=n

Review URL: https://codereview.chromium.org/1414013004

Cr-Commit-Position: refs/heads/master@{#31703}

R=littledan@chromium.org
BUG=v8:4305, v8:4343, v8:4344, v8:4345
LOG=N

Review URL: https://codereview.chromium.org/1408223004

Cr-Commit-Position: refs/heads/master@{#31702}

Original issue's description:
> [es6] Better support for built-ins subclassing.
>
> Create proper initial map for original constructor (new.target) instead of doing prototype
> transition on the base constructor's initial map. This approach fixes in-object slack tracking
> for subclass instances.
> This CL also fixes subclassing from String.
>
> BUG=v8:3101, v8:3330
> LOG=Y
>
> Committed: https://crrev.com/cd5f48302a502154a0106d12e3066bd563c6340c
> Cr-Commit-Position: refs/heads/master@{#31680}

It also fixes typed array map smashing done during typed array initialization.

BUG=v8:3101, v8:3330, v8:4419
LOG=Y

Review URL: https://codereview.chromium.org/1413033006

Cr-Commit-Position: refs/heads/master@{#31701}

Return undefined for missing properties (or throw an exception in strong
mode). Also do a bit of code cleanup.

R=jarin@chromium.org
BUG=v8:4470
LOG=n

Review URL: https://codereview.chromium.org/1427913003

Cr-Commit-Position: refs/heads/master@{#31700}

Rolling v8/buildtools to c2f259809d5ede3275df5ea0842f0431990c4f98

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

Review URL: https://codereview.chromium.org/1406153016

Cr-Commit-Position: refs/heads/master@{#31699}

This utility makes it possible to test TF graphs that accept parameters of any machine type (even int64 and float64), which are previously problematic due to the complexity of C calling conventions.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1423133005

Cr-Commit-Position: refs/heads/master@{#31698}

Adds an optimization to emit JumpIfToBooleanTrue/False instead
of ToBoolean followed by JumpIfTrue/False if the value in the
accumulator is not boolean.

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1426913002

Cr-Commit-Position: refs/heads/master@{#31697}

BUG=chromium:535160
LOG=n

Review URL: https://codereview.chromium.org/1421973007

Cr-Commit-Position: refs/heads/master@{#31696}

This introduces an AllocateMutableHeapNumberStub for the boxed double
field case, where we need to allocate a box in case of a transitioning
store first. We cannot use our inline allocations for this currently,
because mutable HeapNumber objects have certain alignment constraints,
and I don't want to mess up Allocate/AllocateInNewSpace eagerly.

Also refactor the PropertyAccessInfoFactory slightly to split the long
methods into simpler parts.

R=jarin@chromium.org
BUG=v8:4470
LOG=n

Review URL: https://codereview.chromium.org/1419173007

Cr-Commit-Position: refs/heads/master@{#31695}

This re-introduces the long lost concept of conditional builder methods
into the AstGraphBuilder that are allowed to return {nullptr} when a
certain optimization does not apply. This can be used to separate our
optimizations in the graph builder clearly from code required for
correctness.

R=bmeurer@chromium.org
BUG=v8:4513
LOG=n

Review URL: https://codereview.chromium.org/1414723004

Cr-Commit-Position: refs/heads/master@{#31694}

This makes FullCodeGenerator::VisitCall be independent of the target
architecture. Only the EmitPossiblyEvalCall case was dependent and is
hoisted into an emitter method.

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/1428953002

Cr-Commit-Position: refs/heads/master@{#31693}

Also changed the way that transitioning stores are represented in
a PropertyAccessInfo: There's no dedicated kind, but DataFields
have an optional transition map.

R=jarin@chromium.org
BUG=v8:4470
LOG=n

Review URL: https://codereview.chromium.org/1416973014

Cr-Commit-Position: refs/heads/master@{#31692}

BUG=chrome-os-partner:36669
R=jochen@chromium.org
LOG=N
Signed-off-by: Milton Chiang <milton.chiange@mediatek.com>

Review URL: https://codereview.chromium.org/1223613003

Cr-Commit-Position: refs/heads/master@{#31691}

R=danno@chromium.org

Review URL: https://codereview.chromium.org/1427003006

Cr-Commit-Position: refs/heads/master@{#31690}

If the CallIC collected a known target function for a callsite, add
a runtime check to ensure that the feedback remains the same and
specialize the JSCallFunction node to the known target function so that
inlining and typed lowering can pick up the feedback.

R=mstarzinger@chromium.org
BUG=v8:4470, v8:4493
LOG=n

Review URL: https://codereview.chromium.org/1428923002

Cr-Commit-Position: refs/heads/master@{#31689}

Removes deprecated functions from the following files:
 test/cctest/interpreter/test-bytecode-generator.cc
 test/cctest/interpreter/test-interpreter.cc

BUG=v8:4134
LOG=N

Review URL: https://codereview.chromium.org/1421223005

Cr-Commit-Position: refs/heads/master@{#31688}

Adds support for switch statments to the interpreter.

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1415093006

Cr-Commit-Position: refs/heads/master@{#31687}

R=yangguo@chromium.org
BUG=v8:4470
LOG=n

Review URL: https://codereview.chromium.org/1427583008

Cr-Commit-Position: refs/heads/master@{#31686}

Proxies are not properly supported yet.

R=rossberg
BUG=v8:3931
LOG=n

Review URL: https://codereview.chromium.org/1415883007

Cr-Commit-Position: refs/heads/master@{#31685}

Revert of [es6] Better support for built-ins subclassing. (patchset #8 id:200001 of https://codereview.chromium.org/1427483002/ )

Reason for revert:
Breaks test on win32 nosnap.http://build.chromium.org/p/client.v8/builders/V8%20Win32%20-%20nosnap%20-%20shared/builds/9680

Original issue's description:
> [es6] Better support for built-ins subclassing.
>
> Create proper initial map for original constructor (new.target) instead of doing prototype transition on the base constructor's initial map. This approach fixes in-object slack tracking for subclass instances.
> This CL also fixes subclassing from String.
>
> BUG=v8:3101, v8:3330
> LOG=Y
>
> Committed: https://crrev.com/cd5f48302a502154a0106d12e3066bd563c6340c
> Cr-Commit-Position: refs/heads/master@{#31680}

TBR=verwaest@chromium.org,ulan@chromium.org,ishell@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3101, v8:3330

Review URL: https://codereview.chromium.org/1416943005

Cr-Commit-Position: refs/heads/master@{#31684}

Adds wide bytecode varients, which take 16-bit feedback slot and constant
pool entry indexes for the following bytecodes:
  - LoadICSloppyWide
  - LoadICStrictWide
  - KeyedLoadICSloppyWide
  - KeyedLoadICStrictWide
  - StoreICSloppyWide
  - StoreICStrictWide
  - KeyedStoreICSloppyWide
  - KeyedStoreICStrictWide
  - LdaGlobalSloppyWide
  - LdaGlobalStrictWide
  - StaGlobalSloppyWide
  - StaGlobalStrictWide
  - LdaConstantWide

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1413863010

Cr-Commit-Position: refs/heads/master@{#31683}

This is currently hardcoded in the infra-side test runner
setup, but will be removed there, so that swarming triggers
don't need a custom environment.

BUG=chromium:535160
LOG=n

Review URL: https://codereview.chromium.org/1411733008

Cr-Commit-Position: refs/heads/master@{#31682}

This moves the cctest file for the interpreter to live in the same
namespace as the components it is testing. Hence we can avoid the
forbidden using directives pulling in entire namespaces.

From the Google C++ style guide: "You may not use a using-directive to
make all names from a namespace available". This would be covered by
presubmit linter checks if build/namespaces were not blacklisted.

R=rmcilroy@chromium.org

Review URL: https://codereview.chromium.org/1410993009

Cr-Commit-Position: refs/heads/master@{#31681}

Create proper initial map for original constructor (new.target) instead of doing prototype transition on the base constructor's initial map. This approach fixes in-object slack tracking for subclass instances.
This CL also fixes subclassing from String.

BUG=v8:3101, v8:3330
LOG=Y

Review URL: https://codereview.chromium.org/1427483002

Cr-Commit-Position: refs/heads/master@{#31680}