Commit Graph

2910 Commits

Author SHA1 Message Date
yurys@chromium.org
6c57157587 V8 can clear exception pending message, when should not do this.
The case:
v8::TryCatch try_catch;
CompileRun(try { CEvaluate('throw 1;'); } finally {});
CHECK(try_catch.HasCaught());
CHECK(!try_catch.Message().IsEmpty());

CEvaluate is native call. Last check is not passed without patch. Patch contains test TryCatchFinallyStoresMessageUsingTryCatchHandler with more details.

R=mstarzinger@chromium.org, vsevik@chromium.org, yangguo@chromium.org

Review URL: https://codereview.chromium.org/306463002

Patch from Alexey Kozyatinskiy <kozyatinskiy@google.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21697 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-05 13:07:53 +00:00
vogelheim@chromium.org
ba9f391bc0 Support external startup data in V8.
[Retry of crrev.com/293993021, which caused problems with 'ninja all' in Chromium. First patch set if a clean apply
of crrev.com/293993021. Subsequent sets are the actual fix
for that issue.]

If the embedder chooses, the 'natives' (library sources) and the
precompiled startup blob can be written to files during the build
process and handed over to V8 at startup. The main purpose would be
to reduce the size of the compiled binary for space constrained
platforms.

The build-time option is off by default. Nothing should change if
it's not enabled.

BUG=
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/315033002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21696 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-05 13:06:21 +00:00
marja@chromium.org
16be5bb377 Compilation API: next step of deprecations.
Remove deprecated functions and deprecated Script::GetId (which was supposed to
be deprecated, but Chrome was using it).

R=dcarney@chromium.org, svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/315003003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21695 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-05 13:02:18 +00:00
jochen@chromium.org
799fc835f8 Move atomic ops and related files to base library
BUG=none
R=jkummerow@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/316133002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21693 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-05 12:14:47 +00:00
mvstanton@chromium.org
e039477000 Revert "Support external startup data in V8."
This reverts commit r21646, as it blocks pushing to chromium.

TBR=vogelheim@chromium.org

Review URL: https://codereview.chromium.org/317633003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21666 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-04 08:35:42 +00:00
weiliang.lin@intel.com
ba38bb579b X87: Temporarily skip cctest/test-serialize tests in debug mode
BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/307373002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21661 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-04 01:40:07 +00:00
adamk@chromium.org
13d2f365cc Add API support for passing a C++ function as a microtask callback
This allows embedders to enqueue microtasks without having any v8::Context
handy, as happens in Blink in some cases (such as DOM mutations due to editing
triggering MutationObservers).

LOG=Y
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/306053003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21658 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-03 20:12:19 +00:00
rmcilroy@chromium.org
97c962c255 Add support for extended constant pool arrays.
This CL adds support for ConstantPoolArrays which contain an extended section.
This will be used to enable larger constant pools than can be addressed by a
single ldr with immediate offset instruction (which has a limit of a 4KB range).
Extended constant pools will have a small section, which is addressable via a
single ldr instruction, and an extended section, which will require a multi-
instruction sequence to load from.

Currently, no code uses the extended ConstantPoolArray's - this change will
be made in a followup CL.

A number of changes are made to the ConstantPoolArray object in order to
support this:
  - Small section layout is now entirely defined by the small layout bitmaps.
  - The ConstantPoolArray no longer extends FixedArrayBase since the length
    field is not useful for extended layouts.
  - Enums are used to represent the type of an entry and the layout section.
  - An iterator can be used to iterate through all elements of a given type.
  - A number of tests were added for these features.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/304143002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21653 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-03 16:22:10 +00:00
ishell@chromium.org
55443af648 Fixed lint errors caused by "runtime/references" rule (Is this a non-const reference?) and the rule itself is restored.
BUG=v8:3326
LOG=N
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/314723002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21651 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-03 15:45:38 +00:00
marja@chromium.org
2f1daf4aaa Fix leaky tests added by r21649.
TBR=rossberg@chromium.org
BUG=

Review URL: https://codereview.chromium.org/313653002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21650 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-03 15:39:47 +00:00
marja@chromium.org
350a3329ed Add tests for FuncNameInferrer.
There were no explicit tests for FuncNameInferrer (though, some tests might
implicitly rely on it working properly in the common cases). Afaics, there were
no tests which would exercise inferring two byte function names or escaped
function names.

R=rossberg@chromium.org
BUG=

Review URL: https://codereview.chromium.org/310063002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21649 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-03 15:02:16 +00:00
vogelheim@chromium.org
61509aaea5 Support external startup data in V8.
If the embedder chooses, the 'natives' (library sources) and the
precompiled startup blob can be written to files during the build
process and handed over to V8 at startup. The main purpose would be
to reduce the size of the compiled binary for space constrained
platforms.

The build-time option is off by default. Nothing should change if
it's not enabled.

BUG=
R=bmeurer@chromium.org, jochen@chromium.org

Review URL: https://codereview.chromium.org/293993021

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21646 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-03 14:38:35 +00:00
jochen@chromium.org
a980e51471 Add DEPS files and run checkdeps in presubmit check
BUG=none
R=jkummerow@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/312763002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21642 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-03 13:39:42 +00:00
mvstanton@chromium.org
e093f3f0d3 Adjust cctest.status for Cpu profiler tests which are flaky.
R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/307383003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21637 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-03 13:18:16 +00:00
rossberg@chromium.org
396c169e7c Fix test
R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/306353002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21628 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-03 09:34:29 +00:00
jochen@chromium.org
55e65935c9 Fix compilation on win shared and mips
TBR=mvstanton@chromium.org
LOG=n
BUG=none

Review URL: https://codereview.chromium.org/309983002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21627 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-03 08:29:03 +00:00
ishell@chromium.org
b58a08d998 Fix PathTracer.
When tracing, we abuse the map for marking, thereby mutating it.
HeapObject::map() takes care of recovering unabused value.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/316533002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21626 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-03 08:28:38 +00:00
jochen@chromium.org
56a486c322 Use full include paths everywhere
- this avoids using relative include paths which are forbidden by the style guide
- makes the code more readable since it's clear which header is meant
- allows for starting to use checkdeps

BUG=none
R=jkummerow@chromium.org, danno@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/304153016

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21625 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-03 08:12:43 +00:00
hpayer@chromium.org
b8c3ee40ab Tenure allocation sites only when semi-space is maximum size.
BUG=
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/309623007

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21623 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-03 07:55:38 +00:00
adamk@chromium.org
2e2eb6a07e Split Put into Put and Remove
No longer treat the hole as a removal. This removes one branch in
Put and cleans up the API.

BUG=None
LOG=Y
R=adamk@chromium.org, mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/309663005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21616 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-03 00:53:16 +00:00
adamk@chromium.org
509a1a405c ES6: Add support for values/keys/entries for Map and Set
This allows code like this:

  var map = new Map();
  map.set(1, 'One');
  ...
  var iter = map.values();
  var res;
  while (!(res = iter.next()).done) {
    print(res.value);
  }

BUG=v8:1793
LOG=Y
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/259883002

Patch from Erik Arvidsson <arv@chromium.org>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21615 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-03 00:34:01 +00:00
yangguo@chromium.org
97e550985e Release execution lock before dispatching interrupt handling.
R=yurys@chromium.org

Review URL: https://codereview.chromium.org/309533009

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21605 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-02 12:07:37 +00:00
yangguo@chromium.org
f1357a21d2 Some debugger-related clean-ups and renamings.
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/300553008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21604 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-02 11:41:50 +00:00
verwaest@chromium.org
60a71d8a8c Remove PROHIBITS_OVERWRITING as it is subsumed by non-configurable properties.
v8::DontDelete is set for Unforgeable properties, so just not setting PROHIBITS_OVERWRITING should be enough.

The secondary "feature" of not allowing accessors to be installed in extending objects is incorrect and confusing, given that it only applies to accessors but not to regular properties:
Object.defineProperty({__proto__:window}, "location", { value: 10 })
works where
Object.defineProperty({__proto__:window}, "location", { get: function() {} })
doesn't work.

LOG=y
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/306203002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21596 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-02 11:02:06 +00:00
yangguo@chromium.org
50cba82cb9 Remove unused debug API.
R=yurys@chromium.org

Review URL: https://codereview.chromium.org/303693010

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21590 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-06-02 06:22:09 +00:00
bmeurer@chromium.org
e9357a5e77 Refactor HType to get rid of various hacks.
- Move HType to it's own file.
- Add HType::HeapObject and some other useful types.
- Get rid of the broken and useless HType::NonPrimitive.
- Introduce HType::FromType() to convert from HeapType to HType.
- Also add unit tests for HType.
- Fix types in Crankshaft.

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/300893003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21578 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-29 04:13:50 +00:00
adamk@chromium.org
20eeff9ae4 Allow microtasks to throw exceptions and handle them gracefully
If the embedder calls V8::TerminateExecution while we're running microtasks, bail out
and clear any pending microtasks.

All other exceptions are simply swallowed. No current Blink or V8 microtasks throw, this
just ensures something sane happens if another embedder decides to pass a throwing
microtask (or if ours unexpectedly throw due to, e.g., stack exhaustion).

BUG=371566
LOG=Y
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/294943009

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21574 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-28 18:40:04 +00:00
rossberg@chromium.org
0589ba7017 Split Distributivity test
TBR=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/298253008

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21572 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-28 15:05:53 +00:00
mvstanton@chromium.org
8c54a373dd Changing the attributes of a data property implemented with
ExecutableAccessorInfo turns the property into a field. Better
to keep it as a callback, and correctly deal with the changed
property attributes.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/262053011

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21558 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-28 09:58:27 +00:00
mvstanton@chromium.org
5f7fed0134 Repairs to FLAG_pretenure_call_new.
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/307583002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21553 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-28 08:39:33 +00:00
mstarzinger@chromium.org
3812677b42 Make incremental marker post-process JSWeakCollection.
R=hpayer@chromium.org
BUG=v8:2070
LOG=N

Review URL: https://codereview.chromium.org/301553003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21552 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-28 08:35:16 +00:00
jochen@chromium.org
6e3ffe1ca1 Extract build configuration into a separate header and move it to the base lib
With this, change, atomicops, once, and lazy instance are no longer dependant
on v8 core. I'll move them in a follow-up change to the libbase as well.

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

Review URL: https://codereview.chromium.org/303463005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21546 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-28 08:07:18 +00:00
yangguo@chromium.org
5599b3a743 Fix path tracer test.
Path tracer is not compatible with --enable-slow-assert.

R=mstarzinger@chromium.org
BUG=v8:3350
LOG=N

Review URL: https://codereview.chromium.org/297193005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21542 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-28 06:42:01 +00:00
rossberg@chromium.org
68a1a59556 Remove cpp hack to avoid link failures on Windows
TBR=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/298133005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21532 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-27 14:26:32 +00:00
rossberg@chromium.org
7ac892c8bd Establish distributivity for type union & intersection
This requires introducing proper bounds on all leaf types, so that intersection between bitsets and these types can be accurately represented. Extending a union also becomes more involved.

(On the upside, the modified union/intersect algorithm would now allow support for proper variance for function types.)

Not sure if it is worth landing this. Distributivity isn't really a crucial property for our use cases. It seems fine if intersection is slightly lossy.

R=bmeurer@chromium.org, jarin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/251753005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21528 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-27 13:52:31 +00:00
jochen@chromium.org
276adeda1a Replace STATIC_CHECK with STATIC_ASSERT.
It's just an alias, and STATIC_ASSERT is used way more often

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

Review URL: https://codereview.chromium.org/304553002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21527 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-27 13:43:29 +00:00
yangguo@chromium.org
4309b34e40 Skip PathTracer test for now.
TBR=mstarzinger@chromium.org
BUG=3350
LOG=N

Review URL: https://codereview.chromium.org/305583002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21526 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-27 13:40:40 +00:00
yangguo@chromium.org
1630b6d83c Fix PathTracer.
When tracing, we abuse the map for marking, thereby mutating it.
FixedTypedArrayBase::size() uses the object's map, which causes crash.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/300753002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21523 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-27 13:05:11 +00:00
hpayer@chromium.org
0fde744d00 Escape % in SNPrintF call in pretenuring test.
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/298183002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21513 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-27 08:41:12 +00:00
jochen@chromium.org
84e078e561 Reland 21502 - "Move OS::MemCopy and OS::MemMove out of platform to utils"
Verified that arm builds locally.

BUG=none
TBR=jkummerow@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/306473004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21512 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-27 07:57:22 +00:00
hpayer@chromium.org
b3c067ff03 Remove global pretenuring mode.
BUG=
R=bmeurer@chromium.org, mvstanton@chromium.org

Review URL: https://codereview.chromium.org/304493002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21511 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-27 07:48:36 +00:00
jochen@chromium.org
eabd5a19b9 Revert 21502 - "Move OS::MemCopy and OS::MemMove out of platform to utils"
TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/297303004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21504 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-26 19:56:27 +00:00
jochen@chromium.org
a5a21a0da4 Move OS::MemCopy and OS::MemMove out of platform to utils
Since both are jitted on some platforms and depend on codegen, they
don't belong to the platform abstraction. At the same time, I can't put
them to codegen.h, as this would introduce cyclic dependencies.

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

Review URL: https://codereview.chromium.org/302563004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21502 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-26 19:33:15 +00:00
jochen@chromium.org
0f73456d3f Move NumberOfProcessorsOnline from CPU to OS
It's really more an OS-level information, and this way the default
platform doesn't depend on CPU-level details

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

Review URL: https://codereview.chromium.org/300713002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21501 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-26 15:18:45 +00:00
rossberg@chromium.org
9516c181a1 More nuisance
TBR=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/297323004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21497 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-26 13:33:06 +00:00
rossberg@chromium.org
2fbc98a65a Shut up VS
TBR=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/298073005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21495 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-26 13:24:59 +00:00
rossberg@chromium.org
dbf7d8528c Various extensions to types
R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/296213005

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21494 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-26 13:10:52 +00:00
hpayer@chromium.org
6ed0102b1d Remove high promotion mode.
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/296413004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21493 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-26 12:58:55 +00:00
marja@chromium.org
2b7810c09c Fix mem leaks in tests & ScriptCompiler::CompileUnbound.
- Leak in test-parsing/DontRegressPreParserDataSizes
- Leak in test-api/EventLogging
- Leak in ScriptCompiler::CompileUnbound which won't happen during normal
operation, but exposed by test-apöi/CompiledWithInvalidCachedData.

R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/302603002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21488 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-26 11:04:32 +00:00
danno@chromium.org
9c485e182b Introduce x87 port
Support x87-only platform (ia32 without SSE)

R=danno@chromium.org

Review URL: https://codereview.chromium.org/293743005

Patch from Weiliang Lin <weiliang.lin@intel.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21469 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2014-05-23 16:37:27 +00:00