Updated V8 from git://github.com/v8/v8.git to 57f8959fb264354ba1a2e5118db512f588917061

Update V8 source to version 3.10.1.

* Added optimizations and stability improvements on all platforms.
* Various performance improvements.
* Cleanup ScopeInfo and SerializedScopeInfo.
* Introduce extended mode.
* Implemented performance improvements to the incremental garbage
  collector.
* Fixed handling of arrays in DefineOwnProperty. (issue 1756)
* Fixed GCC 4.7 warnings.
* Performance improvements for large Smi-only arrays.
* Reduce the space used by the stack for the profiling thread.
* Reduced memory use immediately after starting V8.
* Fixed VFP detection through compiler defines. (issue 1996)
* Remove static initializers in v8. (issue 1859)
* Optimized boot-up memory use.
* Optimized regular expressions.

Change-Id: I2dad3092612de279179950dae4dd43daf0463a9f
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>

1 files changed, 17 insertions, 6 deletions

diff --git a/src/3rdparty/v8/src/profile-generator-inl.h b/src/3rdparty/v8/src/profile-generator-inl.h
index 88d6e87..65369be 100644
--- a/src/3rdparty/v8/src/profile-generator-inl.h
+++ b/src/3rdparty/v8/src/profile-generator-inl.h
@@ -95,12 +95,23 @@ CodeEntry* ProfileGenerator::EntryForVMState(StateTag tag) {
 }
 
 
-uint64_t HeapEntry::id() {
-  union {
-    Id stored_id;
-    uint64_t returned_id;
-  } id_adaptor = {id_};
-  return id_adaptor.returned_id;
+SnapshotObjectId HeapObjectsMap::GetNthGcSubrootId(int delta) {
+  return kGcRootsFirstSubrootId + delta * kObjectIdStep;
+}
+
+
+HeapObject* V8HeapExplorer::GetNthGcSubrootObject(int delta) {
+  return reinterpret_cast<HeapObject*>(
+      reinterpret_cast<char*>(kFirstGcSubrootObject) +
+      delta * HeapObjectsMap::kObjectIdStep);
+}
+
+
+int V8HeapExplorer::GetGcSubrootOrder(HeapObject* subroot) {
+  return static_cast<int>(
+      (reinterpret_cast<char*>(subroot) -
+       reinterpret_cast<char*>(kFirstGcSubrootObject)) /
+      HeapObjectsMap::kObjectIdStep);
 }
 
 } }  // namespace v8::internal