yangguo@chromium.org
8fb95efdda
Improve internal stringifcation for custom Error objects.
...
If an developer attempts to "subclass" Error by running
`MyError.prototype = new Error();`, then the internal v8::Message object
that's produced and handed off to `window.onerror` handlers is poorly
stringified as "[object Object]".
This patch adjusts the stringification process for these objects to
include not only native Error objects, but also objects that have Error
in their prototype chain, and haven't overwritten Error.toString with
some custom variant.
BUG=2822
R=mstarzinger@chromium.org , yangguo@chromium.org
Review URL: https://codereview.chromium.org/21761002
Patch from Mike West <mkwst@chromium.org>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16075 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-06 13:58:21 +00:00
rossberg@chromium.org
92bd4d1f2d
I found this working on
...
https://codereview.chromium.org/19541010/
The main problem is that if you called Object.getNotifier(obj) on an object, %SetObserved(object) would never get called on it, and thus it would be unobservable (new test added for this).
Additionally, Runtime::SetObserved was asserting obj->IsJSObject() which would fail if called on a proxy.
It just happens that our existing test always called getNotifier() before Object.observe on proxies, and thus we never previously attempted to transition the map of a proxy.
Both issues are now fixed and properly tested.
R=rossberg@chromium.org
Review URL: https://codereview.chromium.org/21891008
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16074 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-06 13:49:10 +00:00
svenpanne@chromium.org
bc6fe88030
Desugar bitwise negation into XOR and kill all UnaryOp stuff.
...
R=mstarzinger@chromium.org , verwaest@chromium.org
Review URL: https://codereview.chromium.org/22184004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16073 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-06 13:34:51 +00:00
dslomov@chromium.org
45f4b685bf
Update Array Iterator to use numeric indexes
...
At the last face-to-face meeting it was decided that we should use
numeric indexes for the Array Iterator values.
https://github.com/rwldrn/tc39-notes/blob/master/es6/2013-07/july-24.md#514-keys-entries-return-numbers-for-array-index-properties
BUG=v8:2818
R=dslomov@chromium.org
Review URL: https://codereview.chromium.org/21180008
Patch from Erik Arvidsson <arv@chromium.org>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16072 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-06 13:10:07 +00:00
jkummerow@chromium.org
665c45c92d
Un-revert "Implement simple effect typing for variables" and "Handle switch effects"
...
This re-lands r15776 and r15777, reverting the revert in r15786.
R=rossberg@chromium.org
Review URL: https://codereview.chromium.org/22144006
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16071 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-06 12:57:23 +00:00
bmeurer@chromium.org
548062ea52
r11951 changed the existing check for the __SOFTFP__ define in ARM platforms
...
to a check for __SOFTP. Most other programs look for __SOFTFP__ [1], so
look for both to increase the chances of not erroring out when using GCC 4.5.
[1] Based on http://codesearch.debian.net/search?q=__SOFTFP__ vs
http://codesearch.debian.net/search?q=__SOFTFP [^_]
BUG=v8:2140
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/22210002
Patch from Raphael Kubo da Costa <raphael.kubo.da.costa@intel.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16070 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-06 11:08:32 +00:00
yurys@chromium.org
4e6041d595
Use standard routine to compute pointer hashs in heap profiler
...
BUG=None
R=alph@chromium.org , yangguo@chromium.org
Review URL: https://codereview.chromium.org/22300005
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16069 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-06 08:49:05 +00:00
verwaest@chromium.org
206a35763a
Fix DeferredInstanceMigration to store the result to temp rather than temp to result.
...
Thanks to Akos Palfi for finding the bug.
BUG=
R=ulan@chromium.org
Review URL: https://chromiumcodereview.appspot.com/22388002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16068 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-06 08:26:31 +00:00
yurys@chromium.org
e06343431a
Return start/end profiling time in microseconds instead of milliseconds
...
The start and end time are now measured in microseconds and the type is int64_t.
This way it seems more natural as we are going to support submilisecond sampling
rate soon. Also it fixes cctest/test-cpu-profiler/ProfileStartEndTime test
failure caused by comparison between long double and double.
TEST=cctest/test-cpu-profiler/ProfileStartEndTime
BUG=v8:2824
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/22155003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16067 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-06 08:00:58 +00:00
danno@chromium.org
61a496f4e4
Prepare push to trunk. Now working on version 3.20.14.
...
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/22277006
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16064 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-06 07:31:23 +00:00
dcarney@chromium.org
982fa4d381
delete eternal handle blocks correctly
...
TBR=mstarzinger@chromium.org
BUG=
Review URL: https://codereview.chromium.org/22371002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16063 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-06 06:34:54 +00:00
palfia@homejinni.com
8575ae5530
MIPS: Migrate instance of deprecated maps in HCheckMaps.
...
Port r16057 (b73ae514)
Original commit message:
Currently only direct map checks are supported. Otherwise only polymorphic cases with a generic fallback behave properly, regular polymorphic cases still need to be adapted.
BUG=
Review URL: https://codereview.chromium.org/22254007
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16062 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-06 01:12:10 +00:00
haitao.feng@intel.com
fe7df8c703
Make some constants' meaning clear for X64
...
R=danno@chromium.org
Review URL: https://codereview.chromium.org/21721002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16061 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-06 00:09:01 +00:00
palfia@homejinni.com
3b347f45a6
MIPS: Replace HCheckPrototypeMaps by explicit map checks of constant values.
...
Port r16055 (7567e57f)
BUG=
Review URL: https://codereview.chromium.org/21639003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16060 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 17:04:10 +00:00
verwaest@chromium.org
2622158aa0
Change environment padding value to value with smi representation.
...
BUG=
R=ulan@chromium.org
Review URL: https://chromiumcodereview.appspot.com/22226002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16059 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 16:53:28 +00:00
mstarzinger@chromium.org
e9f6a2d7b4
Use first hit when dumping heap constants.
...
This makes sure that the first hit is used when dumping heap constants
and hence "TheHoleValue" is not overwritten with other roots that are
initialized to the hole as well.
R=verwaest@chromium.org
Review URL: https://codereview.chromium.org/21639004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16058 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 16:47:45 +00:00
verwaest@chromium.org
9d9930ce99
Migrate instance of deprecated maps in HCheckMaps.
...
Currently only direct map checks are supported. Otherwise only polymorphic cases with a generic fallback behave properly, regular polymorphic cases still need to be adapted.
R=danno@chromium.org
Review URL: https://chromiumcodereview.appspot.com/21536003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16057 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 16:42:39 +00:00
jkummerow@chromium.org
14239ab9fb
Add "benchmarks" test suite
...
R=machenbach@chromium.org
Review URL: https://codereview.chromium.org/21645003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16056 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 14:54:09 +00:00
verwaest@chromium.org
04b5e7fa63
Replace HCheckPrototypeMaps by explicit map checks of constant values.
...
R=danno@chromium.org
Review URL: https://chromiumcodereview.appspot.com/21065006
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16055 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 13:45:16 +00:00
hpayer@chromium.org
983a8621e0
More cleanup regarding the maximum non-large object allocation size.
...
BUG=
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/20867003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16052 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 12:52:53 +00:00
haitao.feng@intel.com
e8fe083eb0
Introduce Push and Pop register macro instructions for all platforms
...
R=danno@chromium.org
Review URL: https://codereview.chromium.org/22041003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16051 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 12:43:04 +00:00
bmeurer@chromium.org
274f254236
Revert "Return start/end profiling time in microseconds instead of milliseconds"
...
This reverts r16049 for breaking build on windows.
TBR=svenpanne@chromium.org ,machenbach@chromium.org
Review URL: https://codereview.chromium.org/22189002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16050 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 12:27:12 +00:00
yurys@chromium.org
d38bbe354b
Return start/end profiling time in microseconds instead of milliseconds
...
The start and end time are now measured in microseconds and the type is int64_t. This way it seems more natural as we are going to support submilisecond sampling rate soon. Also it fixes cctest/test-cpu-profiler/ProfileStartEndTime test failure caused by comparison between long double and double.
TEST=cctest/test-cpu-profiler/ProfileStartEndTime
BUG=v8:2824
R=alph@chromium.org , bmeurer@chromium.org
Review URL: https://codereview.chromium.org/22172002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16049 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 11:48:24 +00:00
jochen@chromium.org
cb68e2cd9b
Expose JSON parser through V8 API
...
BUG=v8:2821
TEST=cctest/test-api/JSONParse
R=yangguo@chromium.org
Review URL: https://codereview.chromium.org/21959003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16048 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 11:14:46 +00:00
dcarney@chromium.org
47c3a081f1
fix 16045
...
TBR=mstarzinger@chromium.org
BUG=
Review URL: https://codereview.chromium.org/22169002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16047 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 10:04:50 +00:00
dcarney@chromium.org
207396101f
introduce eternal handles
...
R=mstarzinger@chromium.org
BUG=
Review URL: https://codereview.chromium.org/21133006
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16045 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 09:46:23 +00:00
mstarzinger@chromium.org
a50827e044
Add explicit transition flag to HStoreNamedField.
...
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/22164003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16044 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 09:35:18 +00:00
yangguo@chromium.org
b58093c953
Add notice when parallel recompilation is disabled by tracing.
...
BUG=
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/22164002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16043 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 09:28:22 +00:00
yangguo@chromium.org
1ed4df6b57
Disable parallel recompilation for --trace-hydrogen-stubs.
...
R=bmeurer@chromium.org
BUG=
Review URL: https://codereview.chromium.org/21830004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16042 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 09:02:47 +00:00
verwaest@chromium.org
251c191824
Fix the loop-builder to tag the entire body as part of the loop.
...
R=danno@chromium.org
Review URL: https://chromiumcodereview.appspot.com/21813004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16041 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 08:59:55 +00:00
dcarney@chromium.org
14ed15e7e1
Make GlobalHandle::NodeBlock deletable
...
R=mstarzinger@chromium.org
BUG=
Review URL: https://codereview.chromium.org/21042004
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16040 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 07:34:29 +00:00
yurys@chromium.org
411d21b2b1
Add start and end profiling time to v8::CpuProfile
...
I'm going to change CPU profiler API and deprecate GetSelfTime, GetTotalTime and GetTotalSamplesCount on CpuProfileNode as all of those values are derived from self samples count and sampling rate. The sampling rate in turn is calculate based on the profiling duration so having start/end time and total sample count is enough for calculating smpling rate.
BUG=267595
R=alph@chromium.org , bmeurer@chromium.org
Review URL: https://codereview.chromium.org/21918002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16039 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 07:17:08 +00:00
svenpanne@chromium.org
e544f130c5
Remove unused UNARY_MINUS builtin.
...
R=bmeurer@chromium.org
Review URL: https://codereview.chromium.org/22146002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16038 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 07:00:38 +00:00
dcarney@chromium.org
eb52c66fd0
IsNearDeath needs to include pending nodes
...
R=svenpanne@chromium.org
BUG=
Review URL: https://codereview.chromium.org/21466003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16037 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 06:58:48 +00:00
svenpanne@chromium.org
d5b9616991
Clean some unuse code of unary negation
...
R=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/22089002
Patch from Weiliang Lin <weiliang.lin2@gmail.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16036 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-05 06:34:26 +00:00
palfia@homejinni.com
ea38ee8782
MIPS: Avoid redundant smi check for Math.abs
...
Port r16021 (d79f4450)
BUG=
Review URL: https://codereview.chromium.org/21903003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16035 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-02 18:35:19 +00:00
haitao.feng@intel.com
dfda85a91a
Introduce PopReturnAddressTo and PushReturnAddressFrom macro-assembler instructions for X64
...
R=danno@chromium.org
Review URL: https://codereview.chromium.org/21477002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16034 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-02 13:42:02 +00:00
dslomov@chromium.org
5230c19d8b
Add size_t length argument to v8::ArrayBuffer::Allocator::Free.
...
The previous implementation of Free is a deprecated overload now.
R=mstarzinger@chromium.org
Committed: https://code.google.com/p/v8/source/detail?r=16031
Review URL: https://codereview.chromium.org/21803002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16033 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-02 13:03:06 +00:00
dslomov@chromium.org
f8b80ca66d
Revert "Add size_t length argument to v8::ArrayBuffer::Allocator::Free."
...
This reverts r16031 for breaking shared build.
TBR=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/21818003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16032 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-02 12:56:53 +00:00
dslomov@chromium.org
1688f3c167
Add size_t length argument to v8::ArrayBuffer::Allocator::Free.
...
The previous implementation of Free is a deprecated overload now.
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/21803002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16031 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-02 12:19:22 +00:00
jkummerow@chromium.org
232a2c0d88
Regression test for issue 2813 / r16008
...
BUG=v8:2813
R=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/21806002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16030 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-02 12:17:19 +00:00
svenpanne@chromium.org
bf71023ba5
Replaced unary negation by multiplication with -1.
...
This fixes a deopt loop in the Epic Citadel demo and removes some code. Apart from that, this change is performance-neutral.
When we do something similar for BIT_NOT, the whole UnaryOp stuff can go away.
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/21782002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16029 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-02 11:56:35 +00:00
mstarzinger@chromium.org
1e296936eb
Store transition on HStoreNamedField as HConstant.
...
This allows optimization passes that run in the parallel compiler thread
to use the map that a store transitions to for further analysis even
though the map handle cannot be dereferenced.
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/21560002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16028 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-02 11:24:55 +00:00
titzer@chromium.org
af2663afd8
Remove instructions and infrastructure related to IDEFs that is now obsolete (and was never turned on). The new bounds check elimination phase doesn't make use of these features, as they were the first parts of the previous approach which was never completed.
...
BUG=
R=danno@chromium.org
Review URL: https://codereview.chromium.org/21579003
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16027 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-02 11:17:26 +00:00
machenbach@chromium.org
a37040b275
Make optimized debug builds link against debug CRT.
...
We recently had some XP issues on chromium.win after https://codereview.chromium.org/19384011/ .
This might fix it - quote: "The most likely cause of the problem is a gyp (or similar) change that resulted in v8.dll linking against the release version of the crt (for a debug build). There are two MS VC related files: the crt and the c++ std lib (MSVCR100.DLL and MSVCP100D.DLL). The former is set to release, the latter to debug."
I am not entirely sure if this change fits to the linker options for debug level 2.
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/21776002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16026 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-02 10:59:23 +00:00
mstarzinger@chromium.org
c87abd1117
Add new Harmony methods to Array.prototype object.
...
Array.prototype.find
Array.prototype.findIndex
http://people.mozilla.org/~jorendorff/es6-draft.html
BUG=v8:2776,v8:2777
TEST=mjsunit/harmony/array-find,mjsunit/harmony/array-findindex
R=mstarzinger@chromium.org
Review URL: https://codereview.chromium.org/21079003
Patch from Ioseb Dzmanashvili <ioseb.dzmanashvili@gmail.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16025 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-02 10:57:48 +00:00
loislo@chromium.org
d2c443b774
Extract hardcoded error strings into a single place and replace them with enum.
...
I'd like to propagate bailout reason to cpu profiler.
So I need to save it into heap object SharedFunctionInfo.
But:
1) all bailout reason strings spread across all the sources.
2) they are native strings and if I convert them into String then I may have a performance issue.
3) one byte is enough for 184 bailout reasons. Otherwise we need 8 bytes for the pointer.
Also I think it would be nice to have error strings collected in one place.
In that case we will get additional benefits:
It allows us to keep this set of messages under control.
It gives us a chance to internationalize them.
It slightly reduces the binary footprint.
From the other hand the developers have to add new strings into that enum.
BUG=
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/20843012
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16024 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-02 09:53:11 +00:00
mstarzinger@chromium.org
477b41c89b
Fix Mac build after r16022.
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R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/21786002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16023 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-02 09:35:44 +00:00
mstarzinger@chromium.org
12c8d36331
Generate grokdump constants with 'make grokdump' now.
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R=svenpanne@chromium.org
Review URL: https://codereview.chromium.org/21771002
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16022 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-02 09:02:02 +00:00
jkummerow@chromium.org
a47705644e
Avoid redundant smi check for Math.abs
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R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/21180004
Patch from Weiliang Lin <weiliang.lin2@gmail.com>.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16021 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-02 08:59:02 +00:00