Commit Graph

1366 Commits

Author SHA1 Message Date
rossberg@chromium.org
62945585fd Implement ES5 erratum: global declarations shadow inherited properties.
I also discovered that our treatment of const declarations is inconsistent
when inside a global eval under 'with' (i.e., when created by
DeclareContextSlots). That is,

  var x;
  eval("const x = 9")

and

  var x;
  eval("with({}) const x = 9")

differ (the former assigns 9, the latter throws). This appears to be an
oversight from earlier changes to our const semantics (the latter shouldn't
throw either). Fixing this is a separate issue, though (and one that doesn't
seem quite worthwhile).

R=mstarzinger@chromium.org
BUG=v8:1991,80591
TEST=

Review URL: https://chromiumcodereview.appspot.com/10067010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11333 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-16 13:20:50 +00:00
loislo@chromium.org
17632e447c Add size metric into Heap Stats.
The stats data have only count field at the moment.
A constantly growing array of integers also can be a reason of a leak.
Ans we have to have a way to detect such kind of leaks.

Drive by fix:
FindObject and AddEntry were replaced with FindEntry/FindOrAddEntry pair.

BUG=none
TEST=HeapSnapshotObjectsStats

Review URL: https://chromiumcodereview.appspot.com/10086004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11327 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-16 09:44:42 +00:00
alexeif@chromium.org
48777a7f5b Split nodes and edges into separate arrays in heap snapshot serialization.
Review URL: https://chromiumcodereview.appspot.com/10037004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11315 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-13 12:50:48 +00:00
mstarzinger@chromium.org
2f732c2728 Add isolate accessor to AccessorInfo and Arguments.
This passes the isolate through to API callback functions so that it is
available through AccessorInfo and Arguments. This allows bindings to
avoid unnecessary TLS lookups to retrieve the current isolate.

R=danno@chromium.org
TEST=cctest/test-api,cctest/test-accessors

Review URL: https://chromiumcodereview.appspot.com/10069050

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11306 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-13 09:38:00 +00:00
loislo@chromium.org
07301d7d89 Build fix for Mac.
warning: base class 'class v8::OutputStream' should be explicitly initialized in the copy constructor

BUG=none
TEST=none
TBR=mnaganov

Review URL: https://chromiumcodereview.appspot.com/10038044

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11304 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-13 09:19:01 +00:00
loislo@chromium.org
d1f83dd95a This patch is introducing a way to grab heap stats.
The idea is to monitor the heap regulary and track each object in the heap.
With this data we will be able do draw heap usage diagram.
Where X is time and Y is the number of objects.

BUG=none
TEST=HeapSnapshotObjectsStats

Review URL: https://chromiumcodereview.appspot.com/10049002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11302 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-13 08:52:25 +00:00
mstarzinger@chromium.org
40895f0250 Cleanup test-alloc unit test case.
This makes the test-alloc test case more robust against changes to the
initial heap size. It correctly simulates a full space now instead of
trying to fill the space up by allocating filler objects.

R=svenpanne@chromium.org
TEST=cctest/test-alloc

Review URL: https://chromiumcodereview.appspot.com/10071003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11284 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-12 10:06:32 +00:00
mstarzinger@chromium.org
bd58fddbc3 Fix compile error in r11279.
TBR=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9969156

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11280 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-11 15:47:46 +00:00
mstarzinger@chromium.org
6276295e28 Fix WeakMap processing for evacuation candidates (2).
This fixes processing of WeakMaps so that keys on evacuation candidates
which are also reachable by other strong paths are correctly recorded in
the slots buffer.

Also backing stores that reside in the large-object-space now use the
correct anchor slot.

R=vegorov@chromium.org
BUG=v8:2060
TEST=cctest/test-weakmaps/Regress2060b

Review URL: https://chromiumcodereview.appspot.com/10034018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11279 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-11 15:32:31 +00:00
erikcorry
b6911b555f A version of test-api.cc that compiles both on Mac and on Linux.
Review URL: http://codereview.chromium.org/10050013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11275 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-11 13:41:48 +00:00
erik.corry@gmail.com
dd0be92a1c Fix Windows 64 bit compile.
Review URL: https://chromiumcodereview.appspot.com/10034014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11269 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-11 10:18:42 +00:00
erik.corry@gmail.com
0cdf6b50e7 Fix compile errors on 64 bit platforms.
Review URL: https://chromiumcodereview.appspot.com/10053009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11268 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-11 09:55:20 +00:00
mstarzinger@chromium.org
00d9c14729 Fix WeakMap processing for evacuation candidates.
This fixes processing of WeakMaps so that value entries on an evacuation
candidate are correctly recorded in the slots buffer. We didn't pass the
correct slot into the backing hashtable while visiting values.

Also the live bytes counter for large object space pages was not reset
correctly when incremental marking is aborted.

R=vegorov@chromium.org
BUG=v8:2060
TEST=cctest/test-weakmaps/Regress2060

Review URL: https://chromiumcodereview.appspot.com/10034010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11264 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-11 09:14:29 +00:00
alexeif@chromium.org
d18eaffdae Revert "External references should not affect dominance relation."
This reverts commit 6e46549d13df2b211ea9b4fac9c09fe5013ec465.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10025014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11248 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-08 19:18:06 +00:00
alexeif@chromium.org
5ed3662407 External references should not affect dominance relation.
Review URL: https://chromiumcodereview.appspot.com/10007009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11247 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-08 18:28:32 +00:00
mstarzinger@chromium.org
2df9c8828f Fix presubmit error in r11243.
R=ulan@chromium.org
TEST=cctest/test-heap/OptimizedAllocationAlwaysInNewSpace

Review URL: https://chromiumcodereview.appspot.com/10010010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11244 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-05 16:40:13 +00:00
mstarzinger@chromium.org
78226352b7 Ensure HAllocateObject always allocates in new-space.
This is needed so that we can start removing write-barriers in optimized
code if we can prove that the receiver object is always in new-space.

TEST=cctest/test-heap/OptimizedAllocationAlwaysInNewSpace

Review URL: https://chromiumcodereview.appspot.com/10008007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11243 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-05 15:36:31 +00:00
mstarzinger@chromium.org
7422c9a3fa Regression test for large string joins.
BUG=none
TEST=cctest/test-strings/AsciiArrayJoin

Review URL: https://chromiumcodereview.appspot.com/9963104
Patch from Martyn Capewell <m.m.capewell@googlemail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11229 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-04 14:37:07 +00:00
ulan@chromium.org
232d990545 Reset function info counters after context disposal in incremental marking step.
R=mstarzinger@chromium.org
BUG=117767,V8:1902
TEST=test/cctest/test-heap/ResetSharedFunctionInfoCountersDuringIncrementalMarking

Review URL: https://chromiumcodereview.appspot.com/9903019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11222 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-03 17:22:05 +00:00
mstarzinger@chromium.org
d37104f6bc Fix race condition in test-thread-termination.
The test case failed to stop the preemption thread before destroying the
isolate which led to a race condition where the isolate was accessed
after it had been destroyed.

R=ulan@chromium.org
BUG=v8:2049
TEST=cctest/test-thread-termination/TerminateMultipleV8ThreadsDefaultIsolate

Review URL: https://chromiumcodereview.appspot.com/9969092

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11217 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-03 10:15:12 +00:00
ulan@chromium.org
2b554f2448 Make progress in incremental marking if scavenge is delaying mark-sweep.
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9965054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11213 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-03 07:32:19 +00:00
erik.corry@gmail.com
1d9cebd002 Loosen up the test for boot time memory use on 64 bit.
Review URL: https://chromiumcodereview.appspot.com/9969051

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11209 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-02 13:29:04 +00:00
erikcorry
f14b93a508 Regexp: Improve the speed that we scan for an initial point where a non-anchored
regexp can match by using a Boyer-Moore-like table.  This is done by identifying
non-greedy non-capturing loops in the nodes that eat any character one at a time.
For example in the middle of the regexp /foo[\s\S]*?bar/ we find such a loop.
There is also such a loop implicitly inserted at the start of any non-anchored
regexp.

When we have found such a loop we look ahead in the nodes to find the set of
characters that can come at given distances.  For example for the regexp
/.?foo/ we know that there are at least 3 characters ahead of us, and the sets
of characters that can occur are [any, [f, o], [o]].  We find a range in the
lookahead info where the set of characters is reasonably constrained.  In our
example this is from index 1 to 2 (0 is not constrained).  We can now look 3
characters ahead and if we don't find one of [f, o] (the union of [f, o] and
[o]) then we can skip forwards by the range size (in this case 2).

For Unicode input strings we do the same, but modulo 128.

We also look at the first string fed to the regexp and use that to get a hint
of the character frequencies in the inputs.  This affects the assessment of
whether the set of characters is 'reasonably constrained'.

We still have the old lookahead mechanism, which uses a wide load of multiple
characters followed by a mask and compare to determine whether a match is
possible at this point.
Review URL: http://codereview.chromium.org/9965010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11204 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-02 09:38:07 +00:00
erik.corry@gmail.com
f00631b710 Reduce initial boot-up memory use. This is an other attempt at what
http://codereview.chromium.org/9179012 was trying to achieve.  This
time I am going for 80% of the benefit with around 5% of the complexity.

It works by reducing the size of the first page in each space.  Unlike the
previous change there is no attempt to grow pages, we just allocate more
full-sized pages when we need more memory.  For this reason the first pages are
not quite as small (compare
http://codereview.chromium.org/9179012/diff/1/src/snapshot.h with the changes
in spaces.cc in this cl):  We want to be able to do a little bit of allocation
before we have to add a full-sized page to the space.
Review URL: https://chromiumcodereview.appspot.com/9950048

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11203 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-04-02 08:32:31 +00:00
loislo@chromium.org
0572806287 Fix presubmit check.
BUG=none
TEST=none
TBR=mnaganov

Review URL: https://chromiumcodereview.appspot.com/9921014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11188 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-29 14:50:26 +00:00
loislo@chromium.org
d857c994b6 Current schema of calculation max_snapshot_js_object_id is not always correct.
As the result the test is flaky.

BUG=v8/2042
TEST=HeapEntryIdsAndGC
R=mnaganov

Review URL: https://chromiumcodereview.appspot.com/9918005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11187 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-29 14:18:11 +00:00
loislo@chromium.org
6306283df9 fix for TestHeapEntryIdsAndGC
BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/9864035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11163 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-27 12:25:05 +00:00
loislo@chromium.org
b84b44d86c This value is required for showing the heap snapshot delta in Summary view of DevTools.Profiler.
At the moment it is evaluating on the front-end side and this is cost us 2 * (load time + parse time + traverse via snapshot) because I need this value for two previous snapshots.

BUG=none
TEST=test-heap-profiler

Review URL: https://chromiumcodereview.appspot.com/9858016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11161 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-27 11:54:47 +00:00
loislo@chromium.org
9b9e458a43 Revert "This value is required for showing the heap snapshot delta in Summary view of DevTools.Profiler."
This reverts commit 634864d65ebe820a967f6162d8e226cf4a73e51a.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9861018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11158 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-27 11:12:31 +00:00
loislo@chromium.org
410f3a3375 This value is required for showing the heap snapshot delta in Summary view of DevTools.Profiler.
At the moment it is evaluating on the front-end side and this is cost us 2 * (load time + parse time + traverse via snapshot) because I need this value for two previous snapshots.

BUG=none
TEST=test-heap-profiler

Review URL: https://chromiumcodereview.appspot.com/9858016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11150 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-27 08:52:00 +00:00
loislo@chromium.org
b414adb1f3 Complete switch to SnapshotObjectId.
BUG=none
TEST=test-heap-profiler

Review URL: https://chromiumcodereview.appspot.com/9858010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11145 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-26 13:47:37 +00:00
erik.corry@gmail.com
bc1eb293cd Enable snapshots on MIPS. This is based on
http://codereview.chromium.org/9372063 by Daniel Kalmar.
Review URL: https://chromiumcodereview.appspot.com/9722020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11107 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-21 14:29:14 +00:00
erik.corry@gmail.com
25f84a48ce Speed up WriteUtf8 in the case where the output buffer is large enough.
Review URL: https://chromiumcodereview.appspot.com/9696032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11104 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-21 13:48:29 +00:00
fschneider@chromium.org
30a2f2c4ef When running with --always-opt, don't deoptimize named loads with uninitialized type feedback.
This avoids tests taking too long because of repeated deoptimizations.
Review URL: https://chromiumcodereview.appspot.com/9812004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11100 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-21 09:23:09 +00:00
loislo@chromium.org
64c96ad9c0 There is a trick for speed up array shift operation.
This trick is confusing a bit the heap snapshoting code.
Such a shiffted array will be interpreted as a new array in the second snapshot.

BUG=none
TEST=HeapEntryIdsAndArrayShift

Review URL: https://chromiumcodereview.appspot.com/9748007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11096 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-20 14:35:05 +00:00
fschneider@chromium.org
e081a3bfba Insert explicit deoptimization for named loads that have "uninitialized" type feedback.
We already do this for binary-ops, unary-ops and comparisons. Typefeedback for named loads can now also
be in "uninitialized" state which means that the corresponding load IC was never executed.
Review URL: https://chromiumcodereview.appspot.com/9722041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11087 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-19 15:54:37 +00:00
erik.corry@gmail.com
bcd0fd00e3 Add API call that identifies strings that are guaranteed
only to contain ASCII characters.
Review URL: https://chromiumcodereview.appspot.com/9724022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11079 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-19 09:51:36 +00:00
yangguo@chromium.org
754dc79066 MIPS: Added support for Loongson architectures.
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9692048
Patch from Daniel Kalmar <kalmard@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11032 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-13 16:18:30 +00:00
erik.corry@gmail.com
758638a53f Fix compile warning on 64 bit Windows.
Review URL: https://chromiumcodereview.appspot.com/9690019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11013 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-12 15:26:05 +00:00
erik.corry@gmail.com
03cfc4363b Fix input and output to handle UTF16 surrogate pairs.
Review URL: https://chromiumcodereview.appspot.com/9600009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11007 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-12 12:35:28 +00:00
ulan@chromium.org
1767fef60b Implement date library functions in C++.
Developed together with Andreas Rossberg based on:
  https://chromiumcodereview.appspot.com/9117034/
  https://chromiumcodereview.appspot.com/9307083/

R=rossberg@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9572008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10983 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-09 12:07:29 +00:00
yangguo@chromium.org
13689a4f13 Set debug break slot at init of loop variable in a for loop.
BUG=102153
TEST=regress-102153.js

Review URL: https://chromiumcodereview.appspot.com/9625011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10963 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-08 10:21:43 +00:00
jkummerow@chromium.org
16f8a9545e Un-braindead-ify test-debug/DebugBreakLoop
Review URL: https://chromiumcodereview.appspot.com/9623007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10962 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-08 08:09:27 +00:00
mstarzinger@chromium.org
4b4b3a4da7 Add kAbortIncrementalMarkingMask flag for GC.
This adds an additional flag to control whether incremental marking
should be aborted when requesting a GC, providing a finer granularity
between kNoGCFlags and kMakeHeapIterableMask.

R=ulan@chromium.org
BUG=v8:1608

Review URL: https://chromiumcodereview.appspot.com/9608006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10961 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-07 17:52:16 +00:00
vegorov@chromium.org
47b6027c37 Add HeapProfiler::GetPersistentHandleCount to be able to track the number of persistent handles
It turns out that an increasing number of persistent handles is a good signal for bugs in the bindings layer

BUG=none
TEST=cctest/test-heap-profiler/PersistentHandleCount

Review URL: https://chromiumcodereview.appspot.com/9620007
Patch from Jochen Eisinger <jochen@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10960 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-07 17:38:50 +00:00
yangguo@chromium.org
5440d43d42 Fix nosse2 tests.
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9617004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10944 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-06 13:37:25 +00:00
yangguo@chromium.org
8f0ee36df3 Fix test-random test.
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9616006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10942 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-06 12:21:42 +00:00
yangguo@chromium.org
20a6c9ba31 Inline Math.random in crankshaft (ia32).
BUG=
TEST=cctest/test-random.cc

Review URL: https://chromiumcodereview.appspot.com/9615008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10939 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-06 11:31:51 +00:00
yangguo@chromium.org
4279f87395 Revert r10913.
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9602006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10914 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-05 07:55:27 +00:00
yangguo@chromium.org
df78fcc384 Set x86 FPU precision to 64-bit for MinGW. Original patch by Jonathan Liu <net147@gmail.com>.
BUG=v8:1062
TEST=test-strtod.cc

Review URL: https://chromiumcodereview.appspot.com/9599006
Patch from Jonathan Liu <net147@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10913 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2012-03-04 10:49:25 +00:00