Commit Graph

2255 Commits

Author SHA1 Message Date
yurys@chromium.org
66bfe59307 Disable allocation folding when allocations tracking is on
BUG=chromium:277984
R=hpayer@chromium.org, loislo@chromium.org, mvstanton@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/32583002

Patch from Alexandra Mikhaylova <amikhaylova@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17337 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-23 12:19:12 +00:00
dslomov@chromium.org
42f85b538e Crankshaft builtins.
Enable optimizing compiler for V8 built-ins. Also fixes an issue uncovered in
x64 codegen.

R=danno@chromium.org, mstarzinger@chromium.org, svenpanne@chromium.org

Review URL: https://codereview.chromium.org/34503003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17334 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-23 08:57:54 +00:00
yurys@chromium.org
87b37f81c1 Revert "Expose v8::Function::GetDisplayName to public API."
This reverts commit 54c7b9af65dd349405944bd9ae2f064202dc6e1d.

The new test fails in debug mode.

BUG=chromium:17356
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/30443006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17325 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-22 15:46:15 +00:00
yurys@chromium.org
5177d5b5cd Expose v8::Function::GetDisplayName to public API.
BUG=chromium:17356
R=mstarzinger@chromium.org, yurys@chromium.org, yangguo@chromium.org, yurys

Review URL: https://codereview.chromium.org/26709011

Patch from Andrey Adaikin <aandrey@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17324 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-22 14:57:19 +00:00
yurys@chromium.org
c71eccf95f Expose v8::Function::IsBuiltin to public API.
This will be used by DevTools so that we could generate a better preview in console. Namely, we could assume that a preview of an object is lossless if all its member functions are builtin.

We also may want to expose this to DevTools users via remote debugging protocol in Debugger.FunctionDetails struct.

BUG=chromium:261470
R=mstarzinger@chromium.org, yurys@chromium.org, dcarney@chromium.org, yurys

Review URL: https://codereview.chromium.org/27701002

Patch from Andrey Adaikin <aandrey@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17323 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-22 14:50:20 +00:00
svenpanne@chromium.org
7ea4b9204c Do not run useless test variants for test-parsing/ParserSync.
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/34733002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17314 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-22 09:13:33 +00:00
bmeurer@chromium.org
9c26c6a3f2 [Sheriff] Revert "Record allocation stack traces" and "Temporarily disable test-heap-profiler/TrackHeapAllocations".
This reverts commit r17301 and r17303 for breaking the nosnap builds.

TBR=yurys@chromium.org

Review URL: https://codereview.chromium.org/34523002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17307 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-22 06:56:19 +00:00
yurys@chromium.org
6b840f563e Temporarily disable test-heap-profiler/TrackHeapAllocations
The test started failing on  V8 Linux - nosnap - debug after r17301 which added stack traversal to the allocation tracker. I'm disabling it for now until the problem is fixed.

BUG=v8:2949
TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/30633005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17303 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-21 16:21:16 +00:00
yurys@chromium.org
66bb9d1563 Record allocation stack traces
This is initial implementation of allocation profiler.

Whenever new object allocation is reported to the HeapProfiler and allocation tracking is on we will capture current stack trace, add it to the collection of the allocation traces (a tree) and attribute the allocated size to the top JS function on the stack.

Format of serialized heap snapshot is extended to include information about recorded allocation stack traces.

BUG=chromium:277984
R=hpayer@chromium.org, loislo@chromium.org

Review URL: https://codereview.chromium.org/27227005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17301 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-21 15:22:11 +00:00
loislo@chromium.org
b50be9ff12 HeapProfiler: integrate FindUntrackedObjects into js code.
In some cases we would like to check untracked objects right from the js code.
Otherwise the objects might be collected rigth before check.

BUG=none
R=hpayer@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/27717003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17270 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-18 11:25:43 +00:00
jkummerow@chromium.org
4e96d4dee6 Tweak Math.log on ia32/x64
ia32 and x64 more consistent now
1. use non-transcendental cache version of log for x64
2. use negative infinity constant instead of pushing to stack and loading to XMM register
3. remove movdbl, use movsd directly. movdbl seems confusing

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/27197013

Patch from Weiliang Lin <weiliang.lin2@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17268 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-18 10:54:45 +00:00
rafaelw@chromium.org
ce2c9b1db1 Prevent changes to hidden properties from being observable via Object.observe
This addresses the leak that mstarzinger points out (https://codereview.chromium.org/26390003/) and includes the test.

Note that this adds a test that observing changes to the empty-string property remains possible.

BUG=
R=mstarzinger@chromium.org, rossberg@chromium.org

Review URL: https://codereview.chromium.org/26592012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17257 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-17 20:49:45 +00:00
marja@chromium.org
f039f334f5 Enable calling the SetReference* & SetObjectGroupId functions with a Persistent<SubclassOfValue>.
This is needed for https://codereview.chromium.org/26792002/

BUG=
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/27512003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17253 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-17 11:48:03 +00:00
yurys@chromium.org
5b105b248e Fix unexpected stack traces in test-cpu-profiler/JsNativeJsSample
This is a follow-up fix for r17140 which makes sure that cpu profiler is started before profiled js functions are compiled so that the profiler gets information about "no frame" ranges along with add code events.

BUG=v8:2933
R=jkummerow@chromium.org, loislo@chromium.org

Review URL: https://codereview.chromium.org/27121003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17229 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-16 08:15:06 +00:00
svenpanne@chromium.org
a4f9ef1827 Fix for non-SSE2.
BUG=cctest/test-assembler-ia32/AssemblerIa32Extractps
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/27476004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17227 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-16 08:08:41 +00:00
svenpanne@chromium.org
3c9a322eaa Do not rely on actual NaN value for testing extractps.
BUG=cctest/test-assembler-ia32/AssemblerIa32Extractps, cctest/test-assembler-x64/AssemblerX64Extractps
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/26704004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17218 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-15 14:04:49 +00:00
svenpanne@chromium.org
258cee8f72 Fixed bug in extractps instruction on ia32 and x64
This is a fixed version of https://codereview.chromium.org/27097002/
which was originally written by weiliang.lin@intel.com.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/27301003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17217 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-15 12:51:58 +00:00
yangguo@chromium.org
cf2aea3ea1 Disable RegExpInterruption test for interpreted irregexp.
Interrupts are not currently supported by interpreted irregexp.

R=mvstanton@chromium.org
BUG=

Review URL: https://codereview.chromium.org/27312002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17209 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-15 08:59:26 +00:00
yangguo@chromium.org
c9eeedf342 Fix regexp interrupt test.
R=jochen@chromium.org
BUG=

Review URL: https://codereview.chromium.org/26848011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17203 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-15 08:06:01 +00:00
ulan@chromium.org
83c63cf555 Out-of-line constant pool on Arm: Stage 2 - Introduce ConstantPoolArray object.
Second stage of implementing an out-of-line constant pool on Arm.  This CL
Introduces the ConstantPoolArray object which will be used as the backing
store of out-of-line constant pools.  Nothing uses this object yet.

BUG=
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22601003

Patch from Ross McIlroy <rmcilroy@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17197 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-14 13:35:06 +00:00
mstarzinger@chromium.org
00125f43f0 Remove deprecated v8::preparser namespace.
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/27174002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17192 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-14 13:07:20 +00:00
yurys@chromium.org
15db1d7c3a Track JS allocations as they arrive with no affection on performance when tracking is switched off.
BUG=277984
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/22852024

Patch from Alexandra Mikhaylova <amikhaylova@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17191 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-14 12:41:28 +00:00
rossberg@chromium.org
814fe1f5cb Reenable 17167: "Ensure lower <= upper bound"
Fixed handlification bug (see 2nd patch).

Will handlify Type::Union and Type::Intersect in separate CL.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/27164003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17189 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-14 12:14:42 +00:00
rossberg@chromium.org
19d716989e Unify handling of position info in AST, part 1
* AstNode now has a position info.
* Removed various ad-hoc position infos from subclasses (most of which had it).
* Position is always set with the constructor, instead of later.
* Take care to use kNoPosition in the right spots, to not crash the debugger.

Still to do:

* Eliminate Conditional::then/else_position and WhileStatement::condition_position.
* Make CaseClause a proper AstNode and eliminate its custom position.
* If possible, eliminate all uses of kNoPosition.

R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/24076007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17183 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-14 09:24:58 +00:00
danno@chromium.org
f55fc759dc Revert 17167: "Ensure lower <= upper bound"
Due to crashes in nosnap ia32

TBR=rossberg@chromium.org

Review URL: https://codereview.chromium.org/27046002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17170 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-11 16:41:34 +00:00
rossberg@chromium.org
68cc8da20c Ensure lower <= upper bound
R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/26959004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17167 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-11 15:17:58 +00:00
rossberg@chromium.org
b9d639cd9d Minor tweaks to types cctest
R=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/26223006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17163 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-11 13:59:01 +00:00
bmeurer@chromium.org
2c631933d5 Load/Store cannot handle double representation.
Assert that the representation for Load/Store in the X64 MacroAssembler
is never Double. Also add missing test case for the Load/Store macros.

TEST=cctest/test-macro-assembler-x64
R=mvstanton@chromium.org

Committed: https://code.google.com/p/v8/source/detail?r=17135

Review URL: https://codereview.chromium.org/25990002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17151 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-11 07:12:06 +00:00
yurys@chromium.org
344d836d0f Add column getter to CpuProfileNode
CpuProfileNode currently exposes only line number which is not enough for the cases when there is more than one function on the same line. This change exposes column number on CpuProfileNode.

BUG=302537
R=jkummerow@chromium.org, loislo@chromium.org

Review URL: https://codereview.chromium.org/25541003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17142 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-10 13:15:47 +00:00
yurys@chromium.org
3228e953f9 Unflake cctest/test-cpu-profiler/JsNativeJsRuntimeJsSample on Win32 Debug
Profiler is now started from JavaScript. Since we always capture stack trace when starting profiler there should always be at least one expected sample in the profile.

Also changed ProfilerEventsProcessor::AddCurrentStack to make sure it call TickSample::Init to instead of custom initialization code.

BUG=v8:2920
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/25686011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17140 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-10 13:03:41 +00:00
rossberg@chromium.org
3c01f30e3f Revert "Load/Store cannot handle double representation."
This reverts r17135 -- test crashes on x64.

TBR=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/26653004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17138 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-10 12:28:52 +00:00
bmeurer@chromium.org
ef8dc50e55 Load/Store cannot handle double representation.
Assert that the representation for Load/Store in the X64 MacroAssembler
is never Double. Also add missing test case for the Load/Store macros.

TEST=cctest/test-macro-assembler-x64
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/25990002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17135 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-10 11:42:00 +00:00
bmeurer@chromium.org
a9d8970bf6 Fix SmiMove unit test.
TEST=cctest/test-macro-assembler-x64.cc
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/25426006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17101 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-04 07:21:31 +00:00
adamk@chromium.org
e5f2d0f7bd Avoid allocations in Object.observe access check tests
BUG=v8:2907
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/24999007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17090 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-02 18:06:20 +00:00
bmeurer@chromium.org
81e4550796 Always use timeGetTime() for TimeTicks::Now() on Windows.
This way, we also ensure that timeGetTime() is used for Time::Now(),
and thereby Date.now() even if GetTickCount64() is available.

Also add test coverage for Time::Now(), TimeTicks::Now() and
TimeTicks::HighResNow().

BUG=chromium:288924
TEST=cctest/test-timer
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/25468003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17080 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-02 13:30:31 +00:00
haitao.feng@intel.com
7fc8679c4e Tweak SmiAdd for X64
R=danno@chromium.org

Review URL: https://codereview.chromium.org/24754002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17074 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-02 11:46:01 +00:00
yurys@chromium.org
b3c440f8da Fix threading problems in test-api when running on simulator
Sampler can retrieve current simulator for profiled isolate from its ThreadLocalTop without calls to Isolate::FindPerThreadDataForThread which sometimes leads to acquring same mutex second time.

BUG=v8:2874
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/25053002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17047 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-01 13:54:53 +00:00
dcarney@chromium.org
7fae9959e9 remove Isolate::Current from ScriptData and Script
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/25037002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17041 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-01 09:56:04 +00:00
mstarzinger@chromium.org
191bcf20cc Limit entry points into the parser API.
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/24104006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17033 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-10-01 09:27:03 +00:00
dcarney@chromium.org
6dd72b6416 change of V8_DEPRECATED to be enabled behind a gyp flag
also add a deprecation message for newer gcc versions

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/25226002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17006 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-09-30 13:28:23 +00:00
mstarzinger@chromium.org
f03dbcff94 Function::Call and Object::CallAsFunction APIs should allow v8::Value as a receiver
Since the primitive values can be a receiver of strict mode functions in
ECMA262 5.1th, v8::Function::Call and Object::CallAsFunction should take
v8::Value as a receiver instead of v8::Object.

BUG=v8:2915
TEST=cctest/test-api
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/24920003

Patch from Yusuke Suzuki <yusukesuzuki@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17003 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-09-30 11:47:36 +00:00
dcarney@chromium.org
b81c581b38 make v8::Locker not use Isolate::GetCurrent()
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/25002004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16988 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-09-27 11:32:13 +00:00
dcarney@chromium.org
7fcd0f395e remove Local::New with no isolate parameter
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/24550006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16972 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-09-27 07:04:02 +00:00
titzer@chromium.org
d441160cab Implement local check elimination on basic blocks.
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23866016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16970 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-09-26 16:25:57 +00:00
dcarney@chromium.org
47e32d0339 Add EscapableHandleScope to api to fix problems with HandleScope::Close
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/24245005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16965 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-09-26 13:46:37 +00:00
dcarney@chromium.org
6245d34b95 build fix for 16957
TBR=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/24726002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16958 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-09-26 08:47:59 +00:00
dcarney@chromium.org
7bad4ba648 remove uses of static oddball accessors using GetCurrent in advance of removal from api
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/24508006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16957 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-09-26 08:21:48 +00:00
dcarney@chromium.org
2efd6aa179 add isolate parameter to ThrowException
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/24538002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16955 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-09-26 07:37:59 +00:00
verwaest@chromium.org
d0e12549ed Reset IC to premonomorphic rather than uninitialized.
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/24512003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16936 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-09-25 09:25:39 +00:00
mstarzinger@chromium.org
45ab50673e Expose SameValue equality comparison algorithm
Since SameValue algorithm is defined formally in ECMA262 and V8 already
exported Equals and StrictEquals algorithms, SameValue should be exposed.
And in this issue, we fix the issue of Object::SameValue implementation,
SameValue(0.0, -0.0) returnes true.

BUG=v8:2909
TEST=cctest/test-api/Equality
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/24360017

Patch from Yusuke Suzuki <yusukesuzuki@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16924 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-09-24 16:51:43 +00:00