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Author SHA1 Message Date
bmeurer@chromium.org
8540129339 ARM: Improve SeqStringSetChar implementation. 
TEST=/test/mjsunit/lithium/SeqStringSetChar.js
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23890007

Patch from Rodolph Perfetta <rodolph.perfetta@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16707 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-13 09:13:58 +00:00
mvstanton@chromium.org
c29295e88b Revert "Every place where AllocationMemento is initialized with an" 
This reverts r16705 for breaking Windows build.

R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/23447031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16706 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-13 08:44:37 +00:00
mvstanton@chromium.org
25c4f763ed Every place where AllocationMemento is initialized with an 
AllocationSite is now checked to be sure a valid Site goes in.
This is temporary code to diagnose chromium bug 284577.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23622029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16705 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-13 08:13:17 +00:00
rossberg@chromium.org
94c4c596e0 Array "splice" changeRecords should be emitted after the performChange has completed (per spec) 
R=rossberg@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23434008

Patch from Rafael Weinstein <rafaelw@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16704 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-13 08:13:02 +00:00
rossberg@chromium.org
f99298bf5d Allow implicit conversion of acceptList values to string during Object.observe 
R=rossberg@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23464058

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16703 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-13 08:09:39 +00:00
yangguo@chromium.org
e4c179e2d3 Use xorps to break the cvtsi2sd unnecessary dependence due to its partially written 
BUG=
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/23654026

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16702 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-13 07:59:48 +00:00
dslomov@chromium.org
8650fae525 Prepare push to trunk. Now working on version 3.21.16. 
R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/23437033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16699 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-13 07:15:02 +00:00
palfia@homejinni.com
2cec3754da MIPS: Bugfix: array constructors that expect a type feedback cell that points to an AllocationSite were being passed the undefined object in some cases. Clearly separate the cases where we have an AllocationSite and where we don't in the general ArrayConstructorStub. 
Port r16693 (0852d4ab)

BUG=
R=gergely@homejinni.com

Review URL: https://codereview.chromium.org/23451057

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16698 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-13 00:10:24 +00:00
palfia@homejinni.com
617f7546a7 MIPS: Refactoring PropertyCallbackInfo & FunctionCallbackInfo, step 1. 
Port r16688 (fcae0bcf)

Original commit message:
The goal is to unify PropertyCallbackInfo and FunctionCallbackInfo so that they
contain the same fields.

The field order will be:
holder
isolate
return value default value
return value
data
this

This step 1 reorders the PropertyCallbackInfo fields.

BUG=
R=gergely@homejinni.com

Review URL: https://codereview.chromium.org/23513045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16697 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-13 00:04:29 +00:00
verwaest@chromium.org
e9c4a49866 Reland Handle non-JSObject heap objects using slow-path IC stub guarded by the map. 
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23578030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16696 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 22:04:04 +00:00
palfia@homejinni.com
4f09f42866 MIPS: Improve code generation for the HRandom instruction. 
Port r16684 (e0f70aa)

Original commit message:
Since the per-context random number generator is now
properly seeded upon context creation, we do not need
to check for lazy-initialization anymore, and so we
can implement the HRandom instruction w/o having to
call into the C function (which means we don't need
to MarkAsCall anymore).

TEST=cctest/test-random
BUG=
R=gergely@homejinni.com

Review URL: https://codereview.chromium.org/23851028

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16695 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 21:17:43 +00:00
palfia@homejinni.com
705d813291 MIPS: Fix of r16681 
Use v0 for return value.

BUG=
R=gergely@homejinni.com

Review URL: https://codereview.chromium.org/23437032

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16694 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 20:11:26 +00:00
mvstanton@chromium.org
5521e2e825 Bugfix: array constructors that expect a type feedback cell that points 
to an AllocationSite were being passed the undefined object in some
cases. Clearly separate the cases where we have an AllocationSite and
where we don't in the general ArrayConstructorStub.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23477071

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16693 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 17:59:41 +00:00
verwaest@chromium.org
ff412d8c37 Revert "Handle non-JSObject heap objects using slow-path IC stub guarded by the map." 
TBR=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23475039

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16692 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 16:57:37 +00:00
yangguo@chromium.org
cb10ceb19d Reland "Clean up after r16292 (disable optimization for StringWrappers)." 
BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/23619036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16691 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 16:17:58 +00:00
olivf@chromium.org
5a0d1ba831 NumberUntagD is faster when untagging in a temp register 
BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/23684056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16690 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 16:14:38 +00:00
verwaest@chromium.org
f375e0514b Handle non-JSObject heap objects using slow-path IC stub guarded by the map. 
BUG=chromium:280632
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23691056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16689 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 16:12:04 +00:00
mstarzinger@chromium.org
34edb73332 Refactoring PropertyCallbackInfo & FunctionCallbackInfo, step 1. 
The goal is to unify PropertyCallbackInfo and FunctionCallbackInfo so that they
contain the same fields.

The field order will be:
holder
isolate
return value default value
return value
data
this

This step 1 reorders the PropertyCallbackInfo fields.

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

Committed: http://code.google.com/p/v8/source/detail?r=16673

Review URL: https://codereview.chromium.org/23620036

Patch from Marja Hölttä <marja@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16688 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 14:32:14 +00:00
jochen@chromium.org
c5b3ce0671 Snapshot i18n Javascript code 
The previous attempt used Boolean instead of $Boolean.

BUG=v8:2745
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23622028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16687 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 13:50:38 +00:00
mstarzinger@chromium.org
6c18fbc229 Use trampoline or handlified JSObject::SetLocalPropertyIgnoreAttributes. 
R=verwaest@chromium.org

Committed: http://code.google.com/p/v8/source/detail?r=16642

Review URL: https://codereview.chromium.org/24093002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16686 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 13:27:42 +00:00
titzer@chromium.org
a33f273ce4 Fix compile error with CLANG. 
BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23475038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16685 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 13:09:33 +00:00
bmeurer@chromium.org
0bdbadcfca Improve code generation for the HRandom instruction. 
Since the per-context random number generator is now
properly seeded upon context creation, we do not need
to check for lazy-initialization anymore, and so we
can implement the HRandom instruction w/o having to
call into the C function (which means we don't need
to MarkAsCall anymore).

TEST=cctest/test-random
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/23478031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16684 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 12:12:01 +00:00
titzer@chromium.org
dc901fae7f First implementation of HUnique<T> and HUniqueSet<T>, which is supposed to replace UniqueValueId. 
BUG=
R=rossberg@chromium.org, verwaest@chromium.org

Review URL: https://codereview.chromium.org/23609020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16683 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 12:08:54 +00:00
olivf@chromium.org
bd5fa9c93b Reland "Fix phis for non-sse2 double values" 
Remove VerifyX87StackDepth from non-debug code.

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23621038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16682 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 11:54:47 +00:00
yangguo@chromium.org
151e514930 Simplify installing concurrently recompiled code. 
Instead of overwriting the code entry of the function, we trigger
an interrupt to install the code on the main thread.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23542029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16681 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 11:30:56 +00:00
olivf@chromium.org
599f42f022 Revert "Fix phis for non-sse2 double values" 
Need to investigate box2d regression.

BUG=
TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23437028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16680 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 11:18:10 +00:00
yangguo@chromium.org
ad25a2969d Revert "Clean up after r16292 (disable optimization for StringWrappers)." 
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23600040

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16679 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 11:15:12 +00:00
ulan@chromium.org
0e8e003077 Implement in-place rehashing of HashTable. 
The algorithm puts elements into correct positions in  multiple iterations.
On the first iteration it tries to put elements at entries specified by
their first hash probe. On the second iteration -- by the second
hash probe, and so on. Overall it does O(k*n) memory accesses, where
k is the maximum number of probes required for an element and n is the
capacity of the hash table. The expectation is that k will be small.

R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23658031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16678 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 11:03:27 +00:00
yangguo@chromium.org
996813cca2 Clean up after r16292 (disable optimization for StringWrappers). 
R=jochen@chromium.org
BUG=v8:2855

Review URL: https://codereview.chromium.org/22891028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16677 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 10:55:57 +00:00
rodolph.perfetta@gmail.com
6a558d107a ARM: remove the regexp specific literal pool. 
It is replaced by a mov_label_offset(Register, Label*) instruction.

BUG=none
TEST=test/cctest/test-assembler-arm.cc
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23515007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16676 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 10:37:42 +00:00
mstarzinger@chromium.org
e6d10e4243 Revert "Refactoring PropertyCallbackInfo & FunctionCallbackInfo, step 1." 
TBR=marja@chromium.org

Review URL: https://codereview.chromium.org/23431019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16675 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 10:03:56 +00:00
yangguo@chromium.org
fa2ad975ed Unnecessay SSE2 check on x64 
BUG=
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/23619033

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16674 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 09:47:02 +00:00
mstarzinger@chromium.org
541840f8c1 Refactoring PropertyCallbackInfo & FunctionCallbackInfo, step 1. 
The goal is to unify PropertyCallbackInfo and FunctionCallbackInfo so that they
contain the same fields.

The field order will be:
holder
isolate
return value default value
return value
data
this

This step 1 reorders the PropertyCallbackInfo fields.

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

Review URL: https://codereview.chromium.org/23620036

Patch from Marja Hölttä <marja@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16673 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 09:09:39 +00:00
olivf@chromium.org
553d73a289 Fix phis for non-sse2 double values 
Since hydrogen will try to merge phi-inputs using registers, even if
the values are spilled, we cannot mark LGoto as double clobbering
instruction.

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23068038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16671 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 09:05:27 +00:00
bmeurer@chromium.org
8dbd822855 Reland "Deuglify V8_INLINE and V8_NOINLINE." 
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/23604054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16669 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 08:57:10 +00:00
dslomov@chromium.org
0642e1933b Prepare push to trunk. Now working on version 3.21.15. 
R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/23653031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16668 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 08:52:29 +00:00
olivf@chromium.org
568e0cada5 Add a missing instruction to the ia32 disassembler. 
BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23451024

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16667 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 07:49:03 +00:00
machenbach@chromium.org
9a11424a6a Revert "Increase test timeout on slow architectures." 
This reverts commit 200c7cbdbc90ec2001ee4e0da7470cb508585e0d.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23475036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16666 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 07:39:44 +00:00
machenbach@chromium.org
956bac1a1c Mark flaky tests for arm. 
Makes the whole test-api a non-tree-closer on arm.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23961006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16665 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-12 07:38:37 +00:00
mstarzinger@chromium.org
51b37666e3 Revert "Fix leftover usage of OS::Allocate()." 
TBR=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23691049

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16664 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-11 20:04:51 +00:00
adamk@chromium.org
ebd4b61f38 Add access check for observed objects 
This change is mostly straightforward: for 'normal' sorts of change records,
simply don't deliver a changeRecord to a given observer callback if an access
the callback's Context is not allowed to "GET" or "HAS" changeRecord.name on
changeRecord.object, or if ACCESS_KEYS is disallowed.

For 'splice' records, the question of whether to hand it to an observer is trickier, since
there are multiple properties involved, and multiple types of possible information leakage.
Given that access-checked objects are very rare (only two in Blink, Window and Location),
and that they are not normally used as Arrays, it seems better to simply not emit any splice
records for such objects rather than spending lots of logic to attempt to avoid information
leakage for something that may never happen.

BUG=v8:2778
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/22962009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16663 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-11 20:03:54 +00:00
mstarzinger@chromium.org
718a6a9a9e Revert r16648, r16641, r16638 and r16637. 
Original descriptions were:
- "Refactor and cleanup VirtualMemory."
- "Fix typo."
- "Deuglify V8_INLINE and V8_NOINLINE."
- "Don't align size on allocation granularity for unaligned ReserveRegion calls."

Reasons for the revert are:
- Our mjsunit test suite slower by a factor of 5(!) in release mode.
- Flaky cctest/test-alloc/CodeRange on all architectures and platforms.
- Tankage of Sunspider by about 6% overall (unverified).

TBR=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23970004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16662 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-11 18:30:01 +00:00
mstarzinger@chromium.org
ebbd9c8ed7 Revert "Unify computation of load stubs in stub cache." 
TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/24095005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16661 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-11 16:27:41 +00:00
mstarzinger@chromium.org
45a65d870d Unify computation of load stubs in stub cache. 
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23647011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16660 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-11 15:44:09 +00:00
mstarzinger@chromium.org
8bf91ffe71 Revert "Use trampoline or handlified JSObject::SetLocalPropertyIgnoreAttributes". 
This was reverted due to performance regressions on Sunspider and other
benchmarks due to double GCs caused by the trampoline.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23435006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16659 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-11 15:16:56 +00:00
yangguo@chromium.org
ea43b5ea0c Make handle dereference check more precise. 
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23578022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16658 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-11 15:12:27 +00:00
palfia@homejinni.com
ef32bb4602 MIPS: remove most uses of Isolate::Current in arch specific files. 
Port r16643 (b818da5)

BUG=
R=gergely@homejinni.com

Review URL: https://codereview.chromium.org/24108002

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16657 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-11 14:36:27 +00:00
palfia@homejinni.com
f81ac2662a MIPS: thread isolate for EntryHookTrampoline. 
Port r16630 (e045054)

BUG=
R=gergely@homejinni.com

Review URL: https://codereview.chromium.org/23503050

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16656 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-11 14:15:18 +00:00
mstarzinger@chromium.org
5dc202d274 Revert "Handlify JSObject::AddProperty method" for performance. 
TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23464069

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16655 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-11 13:42:57 +00:00
mvstanton@chromium.org
6790b83748 To diagnose chromium bug 284577, some additional CHECKS. TODOs are 
added so these can be backed out once the cause of the bug is determined.

BUG=
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/23936007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16654 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-09-11 13:39:11 +00:00