Commit Graph

2115 Commits

Author SHA1 Message Date
titzer@chromium.org
2b9836af8c Remove special-casing of EAGER and SOFT deoptimization calling conventions, allowing calling address to always be available to deoptimization entries.
BUG=

Review URL: https://codereview.chromium.org/18356008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15640 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-12 07:26:00 +00:00
bmeurer@chromium.org
6c13f097d6 Turn ElementsTransitionAndStore stub into a HydrogenCodeStub.
R=danno@chromium.org, mvstanton@chromium.org

Review URL: https://codereview.chromium.org/18881004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15635 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-11 14:29:00 +00:00
mvstanton@chromium.org
9b856d724d Bogus assert needs to be removed on non-ia32 platforms
BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/18384007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15634 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-11 14:26:01 +00:00
rodolph.perfetta@gmail.com
762157d697 ARM: Implement memcpy using NEON.
Add support for a few NEON and ARM SIMD instructions and use them for various
memcpy operations.

BUG=none
TEST=none

Review URL: https://chromiumcodereview.appspot.com/17858002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15602 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-10 15:32:39 +00:00
olivf@chromium.org
857178ad23 Replace custom builtin invocation instructions by a generic version
BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/18154004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15582 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-10 09:02:23 +00:00
verwaest@chromium.org
a1dfbc4627 ARM: Do not omit the write-barrier if the input value is a smi.
The input value isn't what is written into the field if the representation is double. A heap-number is written to the field instead; which requires a write-barrier.

BUG=chromium:254570
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/18854018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15573 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-09 12:31:59 +00:00
verwaest@chromium.org
a9fd01d567 - Makes a common superclass for Load and Store stub compiler.
- Splits all non-normal Store ICs into handler and IC.
- Ensures monomorphic store ICs go polymorphic.
- Feeds polymorphic type feedback into count operation.

R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14142005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15566 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-09 08:22:41 +00:00
mvstanton@chromium.org
23695eb86e Rename AllocationSite::payload to AllocationSite::transition_info
BUG=
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/18749004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15556 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-08 15:00:12 +00:00
mvstanton@chromium.org
c1e19bfc35 Bugfix: The general array constructor stub did not handle the case
properly when it is called with a function pointer in the type cell,
instead assuming that an AllocationSite object should be present. The
case where this can happen is if the cell is uninitialized, then the
first constructor call made is to the Array function of a different
context. In that case, we'll store the function pointer in the cell,
and then go ahead and call the array constructor stub too. The bug is
fixed by checking for the AllocationSite object map. If not found, the
constructor stub goes forward with a default ElementsKind, just as in
several other cases.

A test in allocation-site-info.js was beefed up to make sure the state
chain described above is traversed.

BUG=
R=hpayer@chromium.org, hpayer@google.com

Review URL: https://codereview.chromium.org/18277006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15555 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-08 14:41:54 +00:00
mvstanton@chromium.org
67d9051bcd Create AllocationSite objects, pointed to by AllocationSiteInfo.
This creates a platform where we can do additional things with allocation sites,
other than just aid in reducing array transitions.

BUG=
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/15094018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15545 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-08 10:02:16 +00:00
danno@chromium.org
bd50e6d38f Refactoring and cleanup of control instructions
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/18331004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15513 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-05 10:40:14 +00:00
danno@chromium.org
345cc98a25 Generate StoreGlobal stubs with Hydrogen
- Constants globals are inlined into Hydrogen code using code dependencies that invalidate the Crankshafted code when global PropertyCells or the global object change.
- The more general case generates code that is just as good as the hand-written assembly stubs on all platforms.

R=rossberg@chromium.org, ulan@chromium.org

Committed: http://code.google.com/p/v8/source/detail?r=15419

Review URL: https://codereview.chromium.org/16925008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15512 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-05 10:34:02 +00:00
yangguo@chromium.org
02674ee414 Keep two empty lines between declarations for cpp files
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/18509003

Patch from Haitao Feng <haitao.feng@intel.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15510 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-05 09:52:11 +00:00
olivf@chromium.org
240c7aced9 Convert UnaryOpStub to a HydrogenCodeStub
BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/18712002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15506 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-05 09:26:22 +00:00
olivf@chromium.org
950a372834 Revert "Convert UnaryOpStub to a HydrogenCodeStub"
The problem is the HCallConstantFunction which is not context sensitive, so we leak the builtin. We first need a Hydrogen version of __ IvokeBuiltin.

BUG=
R=danno@chromium.org, machenbach@chromium.org

Review URL: https://codereview.chromium.org/18650003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15486 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-03 19:57:25 +00:00
yurys@chromium.org
678c9dc940 Remove #include "cpu-profiler-inl.h" from v8.h
This significantly reduces amount of files to be recompiled after changes in cpu-profiler.h and its dependencies.

BUG=None
R=loislo@chromium.org, yangguo@chromium.org

Review URL: https://codereview.chromium.org/18522004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15482 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-03 15:39:18 +00:00
olivf@chromium.org
0d2fed8f26 Convert UnaryOpStub to a HydrogenCodeStub
BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/17229005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15473 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-03 14:56:53 +00:00
titzer@chromium.org
63abcc515b Remove HFixedArrayBaseLength instruction and replace with regular HLoadNamedField.
BUG=

Review URL: https://codereview.chromium.org/18508002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15454 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-02 15:31:17 +00:00
danno@chromium.org
77c20c30a3 Revert r15419: "Generate StoreGlobal stubs with Hydrogen"
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/18357004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15427 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-01 15:12:21 +00:00
danno@chromium.org
a3bce19868 Generate StoreGlobal stubs with Hydrogen
- Constants globals are inlined into Hydrogen code using code dependencies that invalidate the Crankshafted code when global PropertyCells or the global object change.
- The more general case generates code that is just as good as the hand-written assembly stubs on all platforms.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/16925008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15419 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-07-01 13:22:13 +00:00
jkummerow@chromium.org
c7a9bffbcf Clean up the usage of V8_TARGET_ARCH_${arch} and V8_HOST_ARCH_${arch}
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/18037002

Patch from Haitao Feng <haitao.feng@intel.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15391 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-28 15:34:48 +00:00
danno@chromium.org
1642f32d1c Improved function entry hook coverage
Adds more coverage for function entry hook, sufficient to capture profiles that are contiguous from C++, through JS and back out to C++.

R=danno@chromium.org

Committed: http://code.google.com/p/v8/source/detail?r=15361

Review URL: https://codereview.chromium.org/16578008

Patch from Sigurður Ásgeirsson <siggi@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15384 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-28 13:40:41 +00:00
mvstanton@chromium.org
83519ec87a Hydrogen array constructor cleanup and improvements
* Cleanup of LCallNewArray::PrintDataTo() method
* Created HCallNewArray::PrintDataTo()
* Created many more tests in array-constructor-feedback.js
* Removed redundant instructions in
  GenerateRecordCallTarget
* Bugfix in CreateArrayDispatchOneArgument: on a call to
  new Array(0), we'd like to set the type feedback cell to
  a packed elements kind, but we shouldn't do it if the
  cell contains the megamorphic sentinel.
* When used from crankshaft, ArrayConstructorStubs can
  avoid verifying that the function being called is the
  array function from the current native context, relying
  instead on the fact that crankshaft issues an
  HCheckFunction to protect the constructor call. (this
  new minor key is used in LCodeGen::DoCallNewArray(), and
  influences code generation in
  CodeStubGraphBuilderBase::BuildArrayConstructor()).
* Optimization: the array constructor specialized for
  FAST_SMI_ELEMENTS can save some instructions by looking
  up the correct map on the passed in constructor, rather
  than indexing into the array of cached maps per element
  kind.

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/17091002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15383 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-28 13:16:14 +00:00
ulan@chromium.org
475131b2b9 Revert r15361 "Improved function entry hook coverage" because of ARM build error.
R=siggi@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/18062006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15365 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-27 15:31:06 +00:00
danno@chromium.org
8494f3bf25 Improved function entry hook coverage
Adds more coverage for function entry hook, sufficient to capture profiles that are contiguous from C++, through JS and back out to C++.

R=danno@chromium.org

Review URL: https://codereview.chromium.org/16578008

Patch from Sigurður Ásgeirsson <siggi@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15361 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-27 14:39:37 +00:00
mvstanton@chromium.org
6aed526733 The check for internalized strings relied on the fact that we had less
than 64 distinct InstanceTypes. We are hitting that boundary, so this
check needs to be more comprehensive. In fact, two bits need to be
tested: verify that kNotStringTag isn't set, and that kInternalizedTag
is set.

BUG=
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/17895002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15358 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-27 13:39:44 +00:00
olivf@chromium.org
21cd74eaa2 Avoid Unnecessary Smi Checks
BUG=
R=ulan@chromium.org

Review URL: https://codereview.chromium.org/16026023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15344 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-26 17:37:55 +00:00
danno@chromium.org
00709075ea Add DependentCode to PropertyCells
R=mstarzinger@chromium.org, ulan@chromium.org

Review URL: https://codereview.chromium.org/17895004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15341 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-26 16:17:12 +00:00
titzer@chromium.org
bfa9fe95dc Change PC for OSR entries to point to something more sensible (i.e. the first UnknownOsrValue), removing the need to record spilled OSR values and the need for duplicate deopt entries.
Review URL: https://codereview.chromium.org/16381006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15331 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-26 08:43:27 +00:00
mvstanton@chromium.org
081134ecd1 Removed flag optimize-constructed-arrays.
This eliminates a large amount of hand-written assembly in the platforms.

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

Review URL: https://codereview.chromium.org/16453002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15328 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-25 16:31:07 +00:00
bmeurer@chromium.org
9f05d61a1d Split HPhase for Lithium and Hydrogen using common CompilationPhase base.
Add new base class CompilationPhase, which is the base for both HPhase, LPhase and LAllocatorPhase. HPhase is now for Hydrogen passes only, LPhase is for Lithium passes and LAllocatorPhase is for LAllocator phases.

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/17572011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15321 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-25 12:22:26 +00:00
svenpanne@chromium.org
6c879c8a30 Removed some useless/dead code regarding CompileTimeValues.
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/17580018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15300 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-24 14:26:32 +00:00
yurys@chromium.org
264b7255e1 Move ExitFrame::ComputeStackPointer from frames-<arch>.cc to frames.cc
The method has identical implementation for all architectures. Moved it into frames.cc

Drive-by: deleted SafeStackFrameIterator::is_working_iterator_, SafeStackFrameIterator::iteration_done_ is used instead.

BUG=None
R=loislo@chromium.org, svenpanne@chromium.org

Review URL: https://codereview.chromium.org/17581004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15293 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-24 13:27:48 +00:00
rossberg@chromium.org
007837365d Rename Literal::handle to Literal::value
Just a completely mechanical change...

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/17576005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15280 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-24 10:37:59 +00:00
rossberg@chromium.org
0977c60984 Use AST's type field and merge types for unary, binary & compare ICs
R=jkummerow@chromium.org
BUG=

Review URL: https://codereview.chromium.org/17468003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15264 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-21 11:10:06 +00:00
yangguo@chromium.org
b7b92bd9ac Short-circuit embedded cons strings.
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/17418003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15263 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-21 09:24:30 +00:00
olivf@chromium.org
29d3461529 Let NaN flow as double into HBranch + some minor improvements
BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/17082003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15246 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-20 13:51:03 +00:00
wingo@igalia.com
646a34e1e0 Generators: Avoid calling into runtime if operand stack is empty
This patch makes yield sites save the resume continuation and context
inline.  If the operand stack is empty, we can avoid a call into the
runtime.  This also makes the SuspendJSGeneratorObject runtime function
less magical: it just has to save the operand stack and stack handlers.

This speeds up the following case by a factor of 3 or so:

  function* until(n) {
    for (var i = 0; i < n; i++)
      yield i;
  }

  function sum(iter) {
    var sum = 0;
    for (var x of iter) sum += x;
    return sum;
  }

  for (var i = 0; i < 10000; i++) sum(until(1000))

Also, there is no more sentinel value as the generators will resume in
the right place already, allowing me to remove the hack added to the
--debug-code check in r14437.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/15990004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15240 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-20 12:59:45 +00:00
olivf@chromium.org
4ee7a92d83 Lithium codegen should not pass around block_ids. Rather encapsulate the basic block to assembly label mapping in the LInstruction.
BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/17276002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15235 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-20 11:50:50 +00:00
wingo@igalia.com
f7ba3a7bb1 Fix stack frame reconstruction for generators with formal arguments
The formal parameter count was always being treated as an untagged
integer, but it is actually a Smi on ia32 and arm.

R=mstarzinger@chromium.org
BUG=v8:2355
TEST=mjsunit/harmony/generators-iteration

Review URL: https://codereview.chromium.org/17485002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15230 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-20 10:48:34 +00:00
mstarzinger@chromium.org
ea87d08557 Revert r14930 and r14935 temporarily.
This is a temporary revert to track down a potential perf regression
introduced in r14930. The following two changes were reverted:
- "Deprecate HAllocateObject in favor of HAllocate."
- "Added pretenuring support for call new."

R=danno@chromium.org
BUG=chromium:247504

Review URL: https://codereview.chromium.org/17491002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15229 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-20 10:48:14 +00:00
jkummerow@chromium.org
7821715dc1 Always reset allowed OSR nesting level when reverting interrupt code patches.
Also, --trap-on-deopt should only affect optimized functions, not hydrogen stubs.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/16848020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15204 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-19 09:38:28 +00:00
mvstanton@chromium.org
c70b41684d Use type feedback for Array (non-constructor) call sites.
BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/17155010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15201 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-19 09:25:24 +00:00
verwaest@chromium.org
202df2e758 Fix constant function transition. Insert return instruction before returning.
R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/17250003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15180 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-17 13:50:56 +00:00
mstarzinger@chromium.org
5fe01da568 Fix bogus replay of arguments object binding in LChunkBuilder.
R=jkummerow@chromium.org
BUG=chromium:249894
TEST=webkit:fast/js/regress/inline-arguments-access.html

Review URL: https://codereview.chromium.org/16938009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15179 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-17 11:11:41 +00:00
danno@chromium.org
61a23ceb4d Refactor only: Rename JSGlobaPropertyCell to PropertyCell
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/17064002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15165 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-14 16:06:12 +00:00
jkummerow@chromium.org
de71923b20 Make MathFloorOfDiv optimization trigger more often
BUG=v8:2205
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/16973002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15161 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-14 14:33:15 +00:00
yangguo@chromium.org
b863016da2 Inhibit OSR for big functions.
R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/17030008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15147 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-14 11:35:00 +00:00
verwaest@chromium.org
2987b11701 Install a generic handler whenever we fail to update the IC.
Ignore select cases in StoreIC since we don't have premonomorphic.

R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/17027007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15145 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-14 11:21:34 +00:00
mstarzinger@chromium.org
4578f634eb Remove bogus cast in LChunkBuilder::CreateEnvironment.
R=jkummerow@chromium.org
TEST=chromium:content_browsertests

Review URL: https://codereview.chromium.org/17057002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15141 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-06-14 09:02:11 +00:00