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300 Commits

Author SHA1 Message Date
verwaest@chromium.org
569d9c59b9 Refactoring Store ICs. A first step towards polymorphic store ICs. 
Review URL: https://chromiumcodereview.appspot.com/12781004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13934 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-13 14:11:05 +00:00
rodolph.perfetta@gmail.com
1c6d5e4cf4 ARM: Optimsisation of ECMA ToInt32. 
BUG=none
TEST=none

Review URL: https://codereview.chromium.org/12567004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13912 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-12 11:25:50 +00:00
rodolph.perfetta@gmail.com
50703c70a9 Split and replace the EmitVFPTruncate routine to only do what is needed. Floor 
and Round have been rewritten to use the default rounding mode.

BUG=none
TEST=none

Review URL: https://codereview.chromium.org/12393008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13833 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-05 19:35:59 +00:00
svenpanne@chromium.org
e4edbb0535 Cleaned up CpuFeature scope handling. 
First of all, it has nothing to do with Isolates, it is related to the assembler
at hand. Furthermore, the saving/restoring is platform-independent. Cleaned up
some platform-specific stuff on the way.

Note that there are some things which still need some cleanup, like e.g. using
EnumSet instead of uint64_t, making Probe() more uniform across platforms etc.,
but the CL is already big enough.

BUG=v8:2487

Review URL: https://codereview.chromium.org/12391055

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13823 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-05 10:48:16 +00:00
rossberg@chromium.org
5c93b18eb2 ES6 symbols: Allow symbols as property names 
Since symbols and strings share a common representation, most of this change is about consistently replacing 'String' with 'Name' in all places where property names are expected. In particular, no new logic at all is necessary for maps, property dictionaries, or transitions. :) The only places where an actual case distinction is needed have to do with generated type checks, and with conversions of names to strings (especially in logger and profiler).

Left in some TODOs wrt to the API: interceptors and native getters don't accept symbols as property names yet, because that would require extending the external v8.h.

(Baseline CL: https://codereview.chromium.org/12296026/)

R=verwaest@chromium.org,mstarzinger@chromium.org
BUG=v8:2158

Review URL: https://codereview.chromium.org/12330012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13811 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-04 15:00:57 +00:00
verwaest@chromium.org
590a3f8811 Polymorphism support for load IC. 
Review URL: https://chromiumcodereview.appspot.com/12340112

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13801 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-04 14:03:27 +00:00
mvstanton@chromium.org
c4caf766bf Allocation Info Tracking, continued. 
Addresses missing cases for array literals.
Adds support for "new Array()" call sites. This isn't complete yet, I have to run with --noinline_new.

BUG=

Review URL: https://codereview.chromium.org/11818021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13790 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-01 16:06:34 +00:00
rossberg@chromium.org
090d09d685 ES6 symbols: Implement Symbol intrinsic and basic functionality 
- Add --harmony-symbols flag.
- Add Symbol constructor; allow symbols as (unreplaced) return value from constructors.
- Introduce %CreateSymbol and %_IsSymbol natives and respective instructions.
- Extend 'typeof' code generation to handle symbols.
- Extend CompareIC with a UNIQUE_NAMES state that (uniformly) handles internalized strings and symbols.
- Property lookup delegates to SymbolDelegate object for symbols, which only carries the toString method.
- Extend Object.prototype.toString to recognise symbols.

Per the current draft spec, symbols are actually pseudo objects that are frozen with a null prototype and only one property (toString). For simplicity, we do not treat them as proper objects for now, although typeof will return "object". Only property access works as if they were (frozen) objects (via the internal delegate object).

(Baseline CL: https://codereview.chromium.org/12223071/)

R=mstarzinger@chromium.org
BUG=v8:2158

Review URL: https://codereview.chromium.org/12296026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13786 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-03-01 13:28:55 +00:00
rossberg@chromium.org
55f93b5532 Renamed "symbols" to "internalized strings" throughout the code base, 
in preparation of the introduction of ES6 'symbols' (aka private/unique names).

The SymbolTable became the StringTable. I also made sure to adapt all comments. The only remaining use of the term "symbol" (other than unrelated uses in the parser and such) is now 'NewSymbol' in the API and the 'V8.KeyedLoadGenericSymbol' counter, changing which might break embedders.

The one functional change in this CL is that I removed the former 'empty_string' constant, since it is redundant given the 'empty_symbol' constant that we also had (and both were used inconsistently).

R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/12210083

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13781 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-28 17:03:34 +00:00
rossberg@chromium.org
8924d03e16 Minor cleanup of CompareIC state 
Allow transitioning from KNOWN_OBJECT to KNONW_OBJECT or OBJECT.
Also, rename HEAP_NUMBER IC states to NUMBER, since they handle Smis, too.

R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/12254036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13775 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-28 14:43:57 +00:00
svenpanne@chromium.org
6e829ed485 Added Isolate parameter to CodeStub::GetCode(). 
According to gprof, this was the #1 cause for TLS access during an Octane run.

BUG=v8:2487

Review URL: https://codereview.chromium.org/12317141

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13756 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-27 12:33:24 +00:00
mstarzinger@chromium.org
7d681e014d Compile FastCloneShallowObjectStub using Crankshaft. 
This changes FastCloneShallowObjectStub to be compiled independent of
the target architecture. It also adds tracing to the deoptimizer for
compiled stubs and contains some minor bugfixes.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/12220074

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13732 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-26 13:08:08 +00:00
yangguo@chromium.org
72b802f27a Refactor RegExpStub to check lazily. 
R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/12210143

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13727 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-26 09:53:07 +00:00
yangguo@chromium.org
215ba8cfc9 Combine %_SubString and %_StringCharAt. 
R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/12217071

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13700 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-20 14:29:40 +00:00
danno@chromium.org
4c052815df Support pass-through of stub caller arguments 
Review URL: https://codereview.chromium.org/12093089

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13593 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-05 08:09:32 +00:00
danno@chromium.org
0c3575c874 Generate the TransitionElementsStub using Crankshaft 
This includes:
* Adding support for saving callee-clobbered double registers in Crankshaft code.
* Adding a new "HTrapAllocationMemento" hydrogen instruction to handle AllocationSiteInfo data in crankshafted stubs.
* Adding a new "HAllocate" hydrogen instruction that can allocate raw memory from the GC in crankshafted code.
* Support for manipulation of the hole in HChange instructions for Crankshafted stubs.
* Utility routines to manually build loops and if statements containing hydrogen code.

Review URL: https://codereview.chromium.org/11659022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13585 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-04 12:01:59 +00:00
danno@chromium.org
f7bae62cd3 Fix gbemu preformance regression 
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/12084063

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13557 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-30 14:25:34 +00:00
danno@chromium.org
a6bc16b6f3 Add StubFailureTrampolineFrames 
In preparation of supporting stubs that deopt and then need to push their
register-based parameters to an arguments area on the stack that gets properly
collected, add StubFailureTrampolineFrames to hold those parameters.

R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/12052053

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13533 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-29 09:12:20 +00:00
verwaest@chromium.org
09d6eccaff Replace store array length builtin with codestub. 
Also includes some other minor cleanup to make Keyed related IC code
more uniform.

Review URL: https://chromiumcodereview.appspot.com/11896091

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13506 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-25 11:55:29 +00:00
ulan@chromium.org
bed569b548 ARM: Make use of d16-d31 when available. 
Review URL: https://chromiumcodereview.appspot.com/11428137
Patch from Hans Wennborg <hans@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13484 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-23 16:29:48 +00:00
verwaest@chromium.org
b79a927e74 Migrate FunctionPrototype (Keyed|Named)LoadIC to CodeStub 
Review URL: https://chromiumcodereview.appspot.com/11941016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13459 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-21 17:54:36 +00:00
verwaest@chromium.org
f80379f3fb Migrate ArrayLength (Keyed|Named)LoadIC to CodeStub 
Review URL: https://chromiumcodereview.appspot.com/11938013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13458 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-21 17:17:02 +00:00
verwaest@chromium.org
c3d45451f0 Replace special IC builtins and stubs in the map's cache by codestubs. 
Review URL: https://chromiumcodereview.appspot.com/11973008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13453 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-21 14:53:29 +00:00
mvstanton@chromium.org
7884216804 Additional work to get array literal allocation tracking working, even with --always-opt 
BUG=

Review URL: https://codereview.chromium.org/11817017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13406 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-17 08:41:27 +00:00
yangguo@chromium.org
89bef51aca Remove move ascii data hint for one byte strings 
This is mostly a rollback of r12966
[Make kAsciiDataHintTag have correct semantics for all both 1 and 2 byte string types.]

R=yangguo@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11857015
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13375 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-14 15:17:56 +00:00
jkummerow@chromium.org
aee9febccc Some more instrumentation to narrow down Failure leaks. 
The basic idea is to tag OOM-Failure objects with an ID indicating where they were created. This requires changes to equality comparisons.

Note to MIPS folks: I'm planning to revert this CL in a couple of days, so feel free to skip porting the platform-specific changes.

BUG=chromium:156010

Review URL: https://codereview.chromium.org/11818023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13341 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-09 12:29:06 +00:00
yangguo@chromium.org
45f20e366a Introduce ENABLE_LATIN_1 compile flag 
Mostly a bunch of renaming when flag is disabled.

R=yangguo@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11759008
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13340 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-09 10:30:54 +00:00
mvstanton@chromium.org
529f801fde Adapt Danno's Track Allocation Info idea to fast literals. When allocating a literal array, 
we store an AllocationSiteInfo object right after the JSArray, with a pointer to the
boilerplate object. Later, if the array transitions we check for the continued existence
of the temporary AllocationSiteInfo object (has no roots). If found, we'll use it to
transition the boilerplate array as well.

Danno's original changeset: https://codereview.chromium.org/10615002/

Review URL: https://codereview.chromium.org/11663005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13330 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-08 09:03:16 +00:00
danno@chromium.org
4246ac3009 Generalize calling to C++ on stub deopt 
Remove code specific to KeyedLoadICs in DoCompiledStubFrame on all platforms, driving stub frame translation by the register parameter information found in a stub's CodeStubInterfaceDescriptor.

Review URL: https://codereview.chromium.org/11635015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13320 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-07 10:06:11 +00:00
ulan@chromium.org
4403daca1a ARM: generate integer zero in a uniform manner. 
ARM generated integer zero as either Operand(0, RelocInfo::NONE32), or
Operand(0), or Operand::Zero(). My change makes it use only
Operand::Zero().

This has no functional impact, it's pure cleanup.

R= ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11745030
Patch from JF Bastien <jfb@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13318 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-07 09:43:12 +00:00
ulan@chromium.org
0606abbaab Rename RelocInfo::NONE to RelocInfo::NONE32. 
This CL only does renaming, nothing else.

Followup to:
https://chromiumcodereview.appspot.com/11695006/

There are now NONE and NONE64 RelocInfo types, but only ARM uses them
both at the same time. They were added in:
https://chromiumcodereview.appspot.com/11191029/

R= ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11744020
Patch from JF Bastien <jfb@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13311 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-04 10:56:24 +00:00
danno@chromium.org
17326e8746 Refactor and improve inlined double-aligned allocations 
Change is performance neutral but generates smaller code and encapsulates double alignment in the macro-assembler rather than at the allocation site.

Review URL: https://codereview.chromium.org/11684005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13284 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-28 11:09:16 +00:00
danno@chromium.org
653a66f527 ARM: Use division instructions in lithium and stubs 
BUG=none
TEST=Added to test/mjsunit/math-floor-of-div.js, math-floor-of-div-nosudiv.js

Review URL: https://codereview.chromium.org/11316105
Patch from Martyn Capewell <m.m.capewell@googlemail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13257 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-20 16:31:19 +00:00
danno@chromium.org
1f4b4625ff Re-land Crankshaft-generated KeyedLoad stubs. 
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11528003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13236 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-18 16:25:45 +00:00
danno@chromium.org
64fc1f99cb Revert 13157, 13145 and 13140: Crankshaft code stubs. 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11498006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13179 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-10 11:09:12 +00:00
danno@chromium.org
84f2454eac Fix isolate bug introduced by generated code stubs 
Review URL: https://codereview.chromium.org/11441013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13145 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-05 16:16:32 +00:00
danno@chromium.org
f19959cd22 Enable stub generation using Hydrogen/Lithium (again) 
This initial implementation generates only KeyedLoadICs using the new Hydrogen stub infrastructure.

Committed: https://code.google.com/p/v8/source/detail?r=13105

Committed: https://code.google.com/p/v8/source/detail?r=13117

Review URL: https://codereview.chromium.org/10701054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13140 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-05 11:04:10 +00:00
danno@chromium.org
66f6a8182c Revert 13117: "Enable stub generation using Hydrogen/Lithium (again)" 
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/11415261

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13120 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-03 17:16:51 +00:00
danno@chromium.org
78b09625d5 Enable stub generation using Hydrogen/Lithium (again) 
This initial implementation generates only KeyedLoadICs using the new Hydrogen stub infrastructure.

Committed: https://code.google.com/p/v8/source/detail?r=13105

Review URL: https://codereview.chromium.org/10701054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13117 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-03 15:51:05 +00:00
danno@chromium.org
0a3bcc8c05 Revert 13105: "Enable stub generation using Hydrogen/Lithium." 
TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11414262

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13106 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-30 17:45:45 +00:00
danno@chromium.org
c115ff4e33 Enable stub generation using Hydrogen/Lithium. 
This initial implementation generates only KeyedLoadICs using the new Hydrogen stub infrastructure.

Review URL: https://codereview.chromium.org/10701054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13105 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-30 17:31:30 +00:00
svenpanne@chromium.org
9de70742a6 PredictableCodeSizeScope checks the expected size now. 
We still have some problems on ARM, so the size check currently
optional. Furthermore, we don't use PredictableCodeSizeScope at all
place where we should do it. Both issues are cleaned up in upcoming
CLs.

Review URL: https://codereview.chromium.org/11348195

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13037 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-22 14:59:52 +00:00
hpayer@chromium.org
ee164ffe3d Use slot instead of value in the write barrier to record write from code. 
BUG=

Review URL: https://codereview.chromium.org/11412096

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13029 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-22 07:05:20 +00:00
jkummerow@chromium.org
d9ba8ed8a1 Fix register confusion in non-VFP3 BinaryOpStubs on ARM 
Review URL: https://codereview.chromium.org/11413014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12980 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-16 08:54:01 +00:00
yangguo@chromium.org
3699616609 Rename SeqAsciiString 
This is a straight rename:

NewRawAsciiString -> NewRawOneByteString
SeqAscii -> SeqOneByte

SeqOneByteString cannot yet take non-ascii data.

R=yangguo@chromium.org,
BUG=

Review URL: https://chromiumcodereview.appspot.com/11411005
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12972 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-15 13:31:27 +00:00
verwaest@chromium.org
a08194c83a Support all fast elements kinds in the major array operations. 
Currently missing support for unshift.

BUG=

Review URL: https://chromiumcodereview.appspot.com/11377132

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12969 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-15 12:19:14 +00:00
yangguo@chromium.org
7fc1751821 Make kAsciiDataHintTag have correct semantics for all both 1 and 2 byte string types. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11360251
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12966 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-15 10:29:11 +00:00
jkummerow@chromium.org
1c086d1202 Lattice-based representation inference, powered by left/right specific type feedback for BinaryOps and comparisons 
Review URL: https://chromiumcodereview.appspot.com/10837165

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12961 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-14 15:59:45 +00:00
yangguo@chromium.org
827f8919f4 Reverting r12937. 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11293246

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12942 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-13 10:36:20 +00:00
yangguo@chromium.org
ce884e13e3 Make kAsciiDataHintTag have correct semantics for all both 1 and 2 byte string types. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11361171

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12937 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-12 14:57:59 +00:00