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719 Commits

Author SHA1 Message Date
yangguo@chromium.org
488b19701a Fix bogus assertion. 
R=dcarney@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/12296008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13684 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-18 13:01:00 +00:00
svenpanne@chromium.org
71a26c928a Make the Isolate parameter mandatory for internal HandleScopes. 
Improved Frames and their iterators on the way, too.

BUG=v8:2487

Review URL: https://codereview.chromium.org/12254007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13674 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-15 09:27:10 +00:00
svenpanne@chromium.org
7b45ab9501 Don't use TLS for space iterators. 
This is not only inherently slow, but it also forces the caller to enter an
Isolate before. Both is bad, so we have to do some heap plumbing.

BUG=v8:2531

Review URL: https://codereview.chromium.org/12217106

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13638 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-11 13:02:20 +00:00
ulan@chromium.org
744d61ebe7 Fix clearing of dead dependent codes and verify weak embedded maps on full GC. 
BUG=172488,172489
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/12094036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13584 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-02-04 10:56:50 +00:00
hpayer@chromium.org
44caabb1cd Parallel and concurrent sweeping. 
Sweep old pointer space and old data space concurrently to the main mutator thread and in parallel.

BUG=

Review URL: https://codereview.chromium.org/11782028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13552 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-30 12:19:32 +00:00
hpayer@chromium.org
c027397c9d Precisely measure duration of mark and sweep phases. Changed print_cumulative_gc_stat flag to only print GC statistics at end of program. 
BUG=

Review URL: https://codereview.chromium.org/11595006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13551 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-30 10:51:13 +00:00
ulan@chromium.org
e6224d275f Make embedded maps in optimized code weak. 
Each map has a weak array of dependent codes, where the map tracks all the optimized codes that embed it.
Old space GC either clears the dead dependent codes from the array if the corresponding map is alive or deoptimizes the live dependent codes if the map is dead.

BUG=v8:2073
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11575007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13490 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-24 11:55:05 +00:00
yurys@chromium.org
250023a68d Implicit references are missing in heap profiles 
Review URL: https://codereview.chromium.org/11953043

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13486 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-24 07:54:40 +00:00
yangguo@chromium.org
284a28e797 Temporarily disable deferred stack trace formatting. 
R=mstarzinger@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11859027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13431 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-18 13:05:03 +00:00
yangguo@chromium.org
84ae8d31b1 Remove some unnecessary use of templates. 
R=dcarney@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11958040

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13413 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-17 14:31:03 +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
5da9e75670 Remove support for Live Object List and inspector module. 
These were introduced in r7012 and r6379.
The reason for this is that both features are not being maintained.
They have been out-of-date for a while.  Test cases do not exist.

R=mstarzinger@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11975012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13404 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-16 15:44:26 +00:00
yangguo@chromium.org
e3c3c1620a Add missing VMState(EXTERNAL) for DOM GC callbacks 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11958011
Patch from Kentaro Hara <haraken@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13403 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-16 15:16:31 +00:00
yangguo@chromium.org
eadcc1c10c Reland r13188, r13194, r13256 (Deferred formatting of error stack trace during GC). 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11880018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13371 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-14 13:19:27 +00:00
mstarzinger@chromium.org
17a73739f0 The time spent in GCPrologue callbacks and GCEpilogue callbacks should be measured as EXTERNAL time 
BUG=

Review URL: https://codereview.chromium.org/11817044
Patch from Kentaro Hara <haraken@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13370 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-14 12:59:41 +00:00
yangguo@chromium.org
e41c17084f Continues Latin-1 support. All tests pass with ENABLE_LATIN_1 flag. 
R=yangguo@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11818025
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13344 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-09 15:47:53 +00:00
hpayer@chromium.org
7541dff7bb Filter old space and large object space to new space references when moving parts of a FixedArray. 
BUG=v8:2452

Review URL: https://codereview.chromium.org/11737006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13343 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2013-01-09 14:01:39 +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
yangguo@chromium.org
2f821f1ed9 Revert r13188, r13194, r13256 (Deferred formatting of error stack trace during GC). 
R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11678006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13279 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-27 13:12:27 +00:00
yangguo@chromium.org
074038058a Add kNumberStringCacheRootIndex into writable_roots 
Review URL: https://chromiumcodereview.appspot.com/11660028
Patch from Haitao Feng <haitao.feng@intel.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13278 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-27 10:11:08 +00:00
yangguo@chromium.org
a3f16f8e65 Fix several bugs in error stack trace formatting. 
GetScriptWrapper can be called recursively:
GetScriptWrapper -> GC -> DeferredFormatStackTrace -> GetScriptWrapper

GC-unsafe code in ErrorObjectList::DeferredFormatStackTrace

Enable overwriting Error.prepareStackTrace by itself while not
causing infinity recursion when it triggers an exception.

R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11649037

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13256 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-20 16:25:26 +00:00
yangguo@chromium.org
eedcaf1866 Remove Utf8InputBuffer 
R=yangguo@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11649018
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13248 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-20 09:20:37 +00:00
yangguo@chromium.org
a2a002be0d Fix windows compile warnings. 
R=dcarney@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11636016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13244 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-19 13:57:51 +00:00
yangguo@chromium.org
9569b20db2 Replace the use CharacterStreams in Heap::AllocateSymbolInternal and String::ComputeHash 
R=yangguo@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11593007
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13242 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-19 13:27:20 +00:00
yangguo@chromium.org
19a6575ea3 Rename LookupSymbol calls to use Utf8 or OneByte in names. 
R=yangguo@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11597007
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13229 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-17 15:56:16 +00:00
yangguo@chromium.org
da3e153e63 Avoid object layout changes during GC. 
R=mstarzinger@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11530011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13194 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-11 14:55:23 +00:00
yangguo@chromium.org
72dfb27909 Fire 'stack' getter of error objects after GC. 
BUG=v8:2340

Review URL: https://chromiumcodereview.appspot.com/11377158

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13188 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-11 10:14:01 +00:00
mstarzinger@chromium.org
eeca7c7759 Add GCTracer metrics for a scavenger GC for DOM wrappers 
This patch adds the following three metrics for the --trace_gc_nvp option.

nodes_died_in_new_space_; // Number of died nodes in the new space.
nodes_copied_in_new_space_; // Number of copied nodes to the new space.
nodes_promoted; // Number of promoted nodes to the old space.

BUG=
TEST=Manually confirmed that the "--trace_gc --trace_gc_nvp" option prints the metrics

Review URL: https://codereview.chromium.org/11365146
Patch from Kentaro Hara <haraken@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13159 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-07 09:44:10 +00:00
mstarzinger@chromium.org
a4c4862ed8 Unify object groups iteration in global handles. 
This unifies the iteration logic of objects groups iteration in global
handles. The scavenger as well as mark-and-compact now rely on the same
underlying logic.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/11299248

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13128 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-12-04 10:23:43 +00:00
mstarzinger@chromium.org
ff5e63761e Revert "Allow incremental marking when expose_gc is turned on." 
This reverts r13072 from bleeding edge.

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/11316268

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13099 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-30 09:42:20 +00:00
svenpanne@chromium.org
5a4e0f1c79 Simplify and fix code aging. 
Making the code size predictable is hard, and to make things even more
complicated, the start of a function can contain various stuff like calls to a
profiling hook, receiver adjustment or dynamic frame alignment. Instead of
tackling all these problems separately, we now simply record the offset where
patching should happen later in the Code object itself.

Review URL: https://codereview.chromium.org/11316218

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13081 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-29 07:38:00 +00:00
mstarzinger@chromium.org
50dcf96e63 Remove bogus assertion from idle notification. 
Callbacks that run after garbage collection might fire a context dispose
notification and hence increse the counter before we actually reach this
position.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/11280214

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13080 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-28 17:56:17 +00:00
hpayer@chromium.org
c772d649cf Allow incremental marking when expose_gc is turned on. 
BUG=

Review URL: https://codereview.chromium.org/11299154

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13072 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-28 08:43:10 +00:00
mstarzinger@chromium.org
d8922dd6f4 Move assertion about stopped marking up (again). 
Weak persistent handle callbacks might trigger nested GCs that in turn
can cause marking to be restarted. The assertion needs to hold before
firing callbacks only.

R=ulan@chromium.org
TEST=cctest/test-api --stress-compaction

Review URL: https://codereview.chromium.org/11413188

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13069 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-27 17:03:12 +00:00
mstarzinger@chromium.org
3b291a0f48 Fix incremental marking to be off during heap snapshots. 
The heap snapshot generator uses the UnreachableObjectsFilter which in
turn messes with marking bits. This requires incremental marking to be
turned off while the snapshot is being generated.

R=verwaest@chromium.org
TEST=cctest/test-heap-profiler --stress-compaction

Review URL: https://codereview.chromium.org/11413183

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13066 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-27 13:18:55 +00:00
ulan@chromium.org
735d052f4c Remove unused heap debug utils code. 
This functionality is already implemented by PathTracer.

R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11412162

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13052 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-26 10:23:16 +00:00
verwaest@chromium.org
2c1ac55213 - Initialize the result array with holes if we concat a double array into an object array, since it may cause a marking step while boxing a double. 
- Ensure we go holey if we are concatting any holey array.

Review URL: https://chromiumcodereview.appspot.com/11413142

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13038 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-22 16:22:57 +00:00
yangguo@chromium.org
72db2287c3 Add parallel recompilation time to histogram and plot execution pause times. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11412125

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13036 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-22 13:04:11 +00:00
rossberg@chromium.org
ce05280bfc Get rid of static module allocation, do it in code. 
Modules now have their own local scope, represented by their own context.
Module instance objects have an accessor for every export that forwards
access to the respective slot from the module's context. (Exports that are
modules themselves, however, are simple data properties.)

All modules have a _hosting_ scope/context, which (currently) is the
(innermost) enclosing global scope. To deal with recursion, nested modules
are hosted by the same scope as global ones.

For every (global or nested) module literal, the hosting context has an
internal slot that points directly to the respective module context. This
enables quick access to (statically resolved) module members by 2-dimensional
access through the hosting context. For example,

  module A {
    let x;
    module B { let y; }
  }
  module C { let z; }

allocates contexts as follows:

[header| .A | .B | .C | A | C ]  (global)
          |    |    |
          |    |    +-- [header| z ]  (module)
          |    |
          |    +------- [header| y ]  (module)
          |
          +------------ [header| x | B ]  (module)

Here, .A, .B, .C are the internal slots pointing to the hosted module
contexts, whereas A, B, C hold the actual instance objects (note that every
module context also points to the respective instance object through its
extension slot in the header).

To deal with arbitrary recursion and aliases between modules,
they are created and initialized in several stages. Each stage applies to
all modules in the hosting global scope, including nested ones.

1. Allocate: for each module _literal_, allocate the module contexts and
   respective instance object and wire them up. This happens in the
   PushModuleContext runtime function, as generated by AllocateModules
   (invoked by VisitDeclarations in the hosting scope).

2. Bind: for each module _declaration_ (i.e. literals as well as aliases),
   assign the respective instance object to respective local variables. This
   happens in VisitModuleDeclaration, and uses the instance objects created
   in the previous stage.
   For each module _literal_, this phase also constructs a module descriptor
   for the next stage. This happens in VisitModuleLiteral.

3. Populate: invoke the DeclareModules runtime function to populate each
   _instance_ object with accessors for it exports. This is generated by
   DeclareModules (invoked by VisitDeclarations in the hosting scope again),
   and uses the descriptors generated in the previous stage.

4. Initialize: execute the module bodies (and other code) in sequence. This
   happens by the separate statements generated for module bodies. To reenter
   the module scopes properly, the parser inserted ModuleStatements.

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

Review URL: https://codereview.chromium.org/11093074

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13033 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-22 10:25:22 +00:00
yangguo@chromium.org
36f5b6d41f Rename IsAsciiRepresentation 
This is a straight rename:

IsAsciiRepresentation -> IsOneByteRepresentation
IsAsciiRepresentationUnderneath -> IsOneByteRepresentationUnderneath
AllocateRawAsciiString -> AllocateRawOneByteString
AllocateStringFromAscii -> AllocateStringFromOneByte

R=yangguo@chromium.org,
BUG=

Review URL: https://chromiumcodereview.appspot.com/11308066
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13023 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-21 10:01:05 +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
mstarzinger@chromium.org
d6a31725b9 Add missing initialization for low survival rate period. 
R=verwaest@chromium.org
BUG=v8:2403

Review URL: https://codereview.chromium.org/11419002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12964 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-15 09:25:40 +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
ulan@chromium.org
a590fff76b Output max incremental step delay in trace_gc_nvp. 
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11377134

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12959 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-14 11:44:56 +00:00
svenpanne@chromium.org
673924413f Re-land rev. 12849 and 12868 (Heavy cleanup of the external pointer API + related fix). 
Review URL: https://codereview.chromium.org/11365224

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12945 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-13 12:27:03 +00:00
svenpanne@chromium.org
09666b60b8 Rollback of r12868, r12849 on bleeding_edge. 
Fixed visibility attribute for GetPointerFromInternalField

Heavy cleanup of the external pointer API.

Review URL: https://codereview.chromium.org/11359125

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12911 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-09 10:07:54 +00:00
danno@chromium.org
bbcfa17134 Use movw/movt on ARM to load constant roots 
BUG=none
TEST=none

Review URL: https://codereview.chromium.org/11307012
Patch from Jay Conrod <dconrod@codeaurora.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12895 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 10:32:39 +00:00
mstarzinger@chromium.org
762c36b6fb Allow collection of DOM objects in minor GC cycles. 
A design document: https://docs.google.com/a/google.com/document/d/16DeHrzkm3cO9XCPT1aK3Y5qgUxXB3RFmueqQWYmN2rI/edit

Performance & memory results: https://docs.google.com/a/google.com/document/d/1h0-EsHu7T0sSMuZm5eE0r1e8sCAzY3weLvsDUpOSngE/edit

The WebKit side patch: https://bugs.webkit.org/show_bug.cgi?id=98725

At present no one is using the V8 APIs this patch is going to add. After this patch is landed, the WebKit side patch will use it.

BUG=

Review URL: https://codereview.chromium.org/11085015
Patch from Kentaro Hara <haraken@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12874 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-06 17:32:15 +00:00