Upgrade V8 to 2.3.7

deps/v8/AUTHORS

@@ -29,4 +29,5 @@ Rodolph Perfetta <rodolph.perfetta@arm.com>
 Ryan Dahl <coldredlemur@gmail.com>
 Subrato K De <subratokde@codeaurora.org>
 Burcu Dogan <burcujdogan@gmail.com>
+Vlad Burlik <vladbph@gmail.com>
 

deps/v8/ChangeLog

@@ -1,3 +1,25 @@
+2010-08-11: Version 2.3.7
+
+        Reduced size of heap snapshots produced by heap profiler (issue 783).
+
+        Introduced v8::Value::IsRegExp method.
+
+        Fixed CPU profiler crash in start / stop sequence when non-existent
+        name is passed (issue http://crbug.com/51594).
+
+        Introduced new indexed property query callbacks API (issue 816). This
+        API is guarded by USE_NEW_QUERY_CALLBACK define and is disabled
+        by default.
+
+        Removed support for object literal get/set with number/string
+        property name.
+
+        Fixed handling of JSObject::elements in CalculateNetworkSize
+        (issue 822).
+
+        Allow compiling with strict aliasing enabled on GCC 4.4 (issue 463).
+
+
 2010-08-09: Version 2.3.6
 
         RegExp literals create a new object every time they are evaluated

deps/v8/SConstruct

@@ -58,7 +58,7 @@ else:
 # on linux we need these compiler flags to avoid crashes in the v8 test suite
 # and avoid dtoa.c strict aliasing issues
 if os.environ.get('GCC_VERSION') == '44':
-    GCC_EXTRA_CCFLAGS = ['-fno-tree-vrp', '-fno-strict-aliasing']
+    GCC_EXTRA_CCFLAGS = ['-fno-tree-vrp']
     GCC_DTOA_EXTRA_CCFLAGS = []
 else:
     GCC_EXTRA_CCFLAGS = []
@@ -80,7 +80,6 @@ ANDROID_FLAGS = ['-march=armv7-a',
                  '-frerun-cse-after-loop',
                  '-frename-registers',
                  '-fomit-frame-pointer',
-                 '-fno-strict-aliasing',
                  '-finline-limit=64',
                  '-DCAN_USE_VFP_INSTRUCTIONS=1',
                  '-DCAN_USE_ARMV7_INSTRUCTIONS=1',

deps/v8/include/v8-profiler.h

@@ -194,10 +194,10 @@ class HeapGraphNode;
 class V8EXPORT HeapGraphEdge {
  public:
   enum Type {
-    CONTEXT_VARIABLE = 0,  // A variable from a function context.
+    kContextVariable = 0,  // A variable from a function context.
-    ELEMENT = 1,           // An element of an array.
+    kElement = 1,          // An element of an array.
-    PROPERTY = 2,          // A named object property.
+    kProperty = 2,         // A named object property.
-    INTERNAL = 3           // A link that can't be accessed from JS,
+    kInternal = 3          // A link that can't be accessed from JS,
                            // thus, its name isn't a real property name.
   };
 
@@ -240,12 +240,12 @@ class V8EXPORT HeapGraphPath {
 class V8EXPORT HeapGraphNode {
  public:
   enum Type {
-    INTERNAL = 0,   // Internal node, a virtual one, for housekeeping.
+    kInternal = 0,   // Internal node, a virtual one, for housekeeping.
-    ARRAY = 1,      // An array of elements.
+    kArray = 1,      // An array of elements.
-    STRING = 2,     // A string.
+    kString = 2,     // A string.
-    OBJECT = 3,     // A JS object (except for arrays and strings).
+    kObject = 3,     // A JS object (except for arrays and strings).
-    CODE = 4,       // Compiled code.
+    kCode = 4,       // Compiled code.
-    CLOSURE = 5     // Function closure.
+    kClosure = 5     // Function closure.
   };
 
   /** Returns node type (see HeapGraphNode::Type). */
@@ -268,13 +268,15 @@ class V8EXPORT HeapGraphNode {
   int GetSelfSize() const;
 
   /** Returns node's network (self + reachable nodes) size, in bytes. */
-  int GetTotalSize() const;
+  int GetReachableSize() const;
 
   /**
-   * Returns node's private size, in bytes. That is, the size of memory
+   * Returns node's retained size, in bytes. That is, self + sizes of
-   * that will be reclaimed having this node collected.
+   * the objects that are reachable only from this object. In other
+   * words, the size of memory that will be reclaimed having this node
+   * collected.
    */
-  int GetPrivateSize() const;
+  int GetRetainedSize() const;
 
   /** Returns child nodes count of the node. */
   int GetChildrenCount() const;

deps/v8/include/v8.h

@@ -919,6 +919,11 @@ class Value : public Data {
    */
   V8EXPORT bool IsDate() const;
 
+  /**
+   * Returns true if this value is a RegExp.
+   */
+  V8EXPORT bool IsRegExp() const;
+
   V8EXPORT Local<Boolean> ToBoolean() const;
   V8EXPORT Local<Number> ToNumber() const;
   V8EXPORT Local<String> ToString() const;
@@ -1819,10 +1824,19 @@ typedef Handle<Value> (*IndexedPropertySetter)(uint32_t index,
 
 /**
  * Returns a non-empty handle if the interceptor intercepts the request.
- * The result is true if the property exists and false otherwise.
+ * The result is true if either a boolean (true if property exists and false
+ * otherwise) or an integer encoding property attributes.
  */
+#ifdef USE_NEW_QUERY_CALLBACKS
+typedef Handle<Integer> (*IndexedPropertyQuery)(uint32_t index,
+                                                const AccessorInfo& info);
+#else
 typedef Handle<Boolean> (*IndexedPropertyQuery)(uint32_t index,
                                                 const AccessorInfo& info);
+#endif
+
+typedef Handle<Value> (*IndexedPropertyQueryImpl)(uint32_t index,
+                                                  const AccessorInfo& info);
 
 /**
  * Returns a non-empty handle if the deleter intercepts the request.
@@ -2040,6 +2054,22 @@ class V8EXPORT FunctionTemplate : public Template {
                                          IndexedPropertyQuery query,
                                          IndexedPropertyDeleter remover,
                                          IndexedPropertyEnumerator enumerator,
+                                         Handle<Value> data) {
+    IndexedPropertyQueryImpl casted =
+        reinterpret_cast<IndexedPropertyQueryImpl>(query);
+    SetIndexedInstancePropertyHandlerImpl(getter,
+                                          setter,
+                                          casted,
+                                          remover,
+                                          enumerator,
+                                          data);
+  }
+  void SetIndexedInstancePropertyHandlerImpl(
+      IndexedPropertyGetter getter,
+      IndexedPropertySetter setter,
+      IndexedPropertyQueryImpl query,
+      IndexedPropertyDeleter remover,
+      IndexedPropertyEnumerator enumerator,
       Handle<Value> data);
   void SetInstanceCallAsFunctionHandler(InvocationCallback callback,
                                         Handle<Value> data);
@@ -2139,7 +2169,25 @@ class V8EXPORT ObjectTemplate : public Template {
                                  IndexedPropertyQuery query = 0,
                                  IndexedPropertyDeleter deleter = 0,
                                  IndexedPropertyEnumerator enumerator = 0,
-                                 Handle<Value> data = Handle<Value>());
+                                 Handle<Value> data = Handle<Value>()) {
+    IndexedPropertyQueryImpl casted =
+        reinterpret_cast<IndexedPropertyQueryImpl>(query);
+    SetIndexedPropertyHandlerImpl(getter,
+                                  setter,
+                                  casted,
+                                  deleter,
+                                  enumerator,
+                                  data);
+  }
+ private:
+  void SetIndexedPropertyHandlerImpl(IndexedPropertyGetter getter,
+                                     IndexedPropertySetter setter,
+                                     IndexedPropertyQueryImpl query,
+                                     IndexedPropertyDeleter deleter,
+                                     IndexedPropertyEnumerator enumerator,
+                                     Handle<Value> data);
+ public:
+
   /**
    * Sets the callback to be used when calling instances created from
    * this template as a function.  If no callback is set, instances

deps/v8/src/accessors.cc

@@ -488,7 +488,7 @@ Object* Accessors::FunctionGetLength(Object* object, void*) {
   JSFunction* function = FindInPrototypeChain<JSFunction>(object, &found_it);
   if (!found_it) return Smi::FromInt(0);
   // Check if already compiled.
-  if (!function->is_compiled()) {
+  if (!function->shared()->is_compiled()) {
     // If the function isn't compiled yet, the length is not computed
     // correctly yet. Compile it now and return the right length.
     HandleScope scope;

deps/v8/src/api.cc

@@ -886,10 +886,10 @@ void FunctionTemplate::SetNamedInstancePropertyHandler(
 }
 
 
-void FunctionTemplate::SetIndexedInstancePropertyHandler(
+void FunctionTemplate::SetIndexedInstancePropertyHandlerImpl(
       IndexedPropertyGetter getter,
       IndexedPropertySetter setter,
-      IndexedPropertyQuery query,
+      IndexedPropertyQueryImpl query,
       IndexedPropertyDeleter remover,
       IndexedPropertyEnumerator enumerator,
       Handle<Value> data) {
@@ -1054,10 +1054,10 @@ void ObjectTemplate::SetAccessCheckCallbacks(
 }
 
 
-void ObjectTemplate::SetIndexedPropertyHandler(
+void ObjectTemplate::SetIndexedPropertyHandlerImpl(
       IndexedPropertyGetter getter,
       IndexedPropertySetter setter,
-      IndexedPropertyQuery query,
+      IndexedPropertyQueryImpl query,
       IndexedPropertyDeleter remover,
       IndexedPropertyEnumerator enumerator,
       Handle<Value> data) {
@@ -1068,7 +1068,7 @@ void ObjectTemplate::SetIndexedPropertyHandler(
   i::FunctionTemplateInfo* constructor =
       i::FunctionTemplateInfo::cast(Utils::OpenHandle(this)->constructor());
   i::Handle<i::FunctionTemplateInfo> cons(constructor);
-  Utils::ToLocal(cons)->SetIndexedInstancePropertyHandler(getter,
+  Utils::ToLocal(cons)->SetIndexedInstancePropertyHandlerImpl(getter,
                                                               setter,
                                                               query,
                                                               remover,
@@ -1792,6 +1792,13 @@ bool Value::IsDate() const {
 }
 
 
+bool Value::IsRegExp() const {
+  if (IsDeadCheck("v8::Value::IsRegExp()")) return false;
+  i::Handle<i::Object> obj = Utils::OpenHandle(this);
+  return obj->IsJSRegExp();
+}
+
+
 Local<String> Value::ToString() const {
   if (IsDeadCheck("v8::Value::ToString()")) return Local<String>();
   LOG_API("ToString");
@@ -4491,24 +4498,27 @@ const CpuProfile* CpuProfiler::StopProfiling(Handle<String> title,
 }
 
 
+static i::HeapGraphEdge* ToInternal(const HeapGraphEdge* edge) {
+  return const_cast<i::HeapGraphEdge*>(
+      reinterpret_cast<const i::HeapGraphEdge*>(edge));
+}
+
 HeapGraphEdge::Type HeapGraphEdge::GetType() const {
   IsDeadCheck("v8::HeapGraphEdge::GetType");
-  return static_cast<HeapGraphEdge::Type>(
+  return static_cast<HeapGraphEdge::Type>(ToInternal(this)->type());
-      reinterpret_cast<const i::HeapGraphEdge*>(this)->type());
 }
 
 
 Handle<Value> HeapGraphEdge::GetName() const {
   IsDeadCheck("v8::HeapGraphEdge::GetName");
-  const i::HeapGraphEdge* edge =
+  i::HeapGraphEdge* edge = ToInternal(this);
-      reinterpret_cast<const i::HeapGraphEdge*>(this);
   switch (edge->type()) {
-    case i::HeapGraphEdge::CONTEXT_VARIABLE:
+    case i::HeapGraphEdge::kContextVariable:
-    case i::HeapGraphEdge::INTERNAL:
+    case i::HeapGraphEdge::kInternal:
-    case i::HeapGraphEdge::PROPERTY:
+    case i::HeapGraphEdge::kProperty:
       return Handle<String>(ToApi<String>(i::Factory::LookupAsciiSymbol(
           edge->name())));
-    case i::HeapGraphEdge::ELEMENT:
+    case i::HeapGraphEdge::kElement:
       return Handle<Number>(ToApi<Number>(i::Factory::NewNumberFromInt(
           edge->index())));
     default: UNREACHABLE();
@@ -4519,28 +4529,32 @@ Handle<Value> HeapGraphEdge::GetName() const {
 
 const HeapGraphNode* HeapGraphEdge::GetFromNode() const {
   IsDeadCheck("v8::HeapGraphEdge::GetFromNode");
-  const i::HeapEntry* from =
+  const i::HeapEntry* from = ToInternal(this)->From();
-      reinterpret_cast<const i::HeapGraphEdge*>(this)->from();
   return reinterpret_cast<const HeapGraphNode*>(from);
 }
 
 
 const HeapGraphNode* HeapGraphEdge::GetToNode() const {
   IsDeadCheck("v8::HeapGraphEdge::GetToNode");
-  const i::HeapEntry* to =
+  const i::HeapEntry* to = ToInternal(this)->to();
-      reinterpret_cast<const i::HeapGraphEdge*>(this)->to();
   return reinterpret_cast<const HeapGraphNode*>(to);
 }
 
 
+static i::HeapGraphPath* ToInternal(const HeapGraphPath* path) {
+  return const_cast<i::HeapGraphPath*>(
+      reinterpret_cast<const i::HeapGraphPath*>(path));
+}
+
+
 int HeapGraphPath::GetEdgesCount() const {
-  return reinterpret_cast<const i::HeapGraphPath*>(this)->path()->length();
+  return ToInternal(this)->path()->length();
 }
 
 
 const HeapGraphEdge* HeapGraphPath::GetEdge(int index) const {
   return reinterpret_cast<const HeapGraphEdge*>(
-      reinterpret_cast<const i::HeapGraphPath*>(this)->path()->at(index));
+      ToInternal(this)->path()->at(index));
 }
 
 
@@ -4555,137 +4569,136 @@ const HeapGraphNode* HeapGraphPath::GetToNode() const {
 }
 
 
+static i::HeapEntry* ToInternal(const HeapGraphNode* entry) {
+  return const_cast<i::HeapEntry*>(
+      reinterpret_cast<const i::HeapEntry*>(entry));
+}
+
+
 HeapGraphNode::Type HeapGraphNode::GetType() const {
   IsDeadCheck("v8::HeapGraphNode::GetType");
-  return static_cast<HeapGraphNode::Type>(
+  return static_cast<HeapGraphNode::Type>(ToInternal(this)->type());
-      reinterpret_cast<const i::HeapEntry*>(this)->type());
 }
 
 
 Handle<String> HeapGraphNode::GetName() const {
   IsDeadCheck("v8::HeapGraphNode::GetName");
   return Handle<String>(ToApi<String>(i::Factory::LookupAsciiSymbol(
-      reinterpret_cast<const i::HeapEntry*>(this)->name())));
+      ToInternal(this)->name())));
 }
 
 
 uint64_t HeapGraphNode::GetId() const {
   IsDeadCheck("v8::HeapGraphNode::GetId");
-  return reinterpret_cast<const i::HeapEntry*>(this)->id();
+  return ToInternal(this)->id();
 }
 
 
 int HeapGraphNode::GetSelfSize() const {
   IsDeadCheck("v8::HeapGraphNode::GetSelfSize");
-  return reinterpret_cast<const i::HeapEntry*>(this)->self_size();
+  return ToInternal(this)->self_size();
 }
 
 
-int HeapGraphNode::GetTotalSize() const {
+int HeapGraphNode::GetReachableSize() const {
-  IsDeadCheck("v8::HeapSnapshot::GetHead");
+  IsDeadCheck("v8::HeapSnapshot::GetReachableSize");
-  return const_cast<i::HeapEntry*>(
+  return ToInternal(this)->ReachableSize();
-      reinterpret_cast<const i::HeapEntry*>(this))->TotalSize();
 }
 
 
-int HeapGraphNode::GetPrivateSize() const {
+int HeapGraphNode::GetRetainedSize() const {
-  IsDeadCheck("v8::HeapSnapshot::GetPrivateSize");
+  IsDeadCheck("v8::HeapSnapshot::GetRetainedSize");
-  return const_cast<i::HeapEntry*>(
+  return ToInternal(this)->RetainedSize();
-      reinterpret_cast<const i::HeapEntry*>(this))->NonSharedTotalSize();
 }
 
 
 int HeapGraphNode::GetChildrenCount() const {
   IsDeadCheck("v8::HeapSnapshot::GetChildrenCount");
-  return reinterpret_cast<const i::HeapEntry*>(this)->children()->length();
+  return ToInternal(this)->children().length();
 }
 
 
 const HeapGraphEdge* HeapGraphNode::GetChild(int index) const {
   IsDeadCheck("v8::HeapSnapshot::GetChild");
   return reinterpret_cast<const HeapGraphEdge*>(
-      reinterpret_cast<const i::HeapEntry*>(this)->children()->at(index));
+      &ToInternal(this)->children()[index]);
 }
 
 
 int HeapGraphNode::GetRetainersCount() const {
   IsDeadCheck("v8::HeapSnapshot::GetRetainersCount");
-  return reinterpret_cast<const i::HeapEntry*>(this)->retainers()->length();
+  return ToInternal(this)->retainers().length();
 }
 
 
 const HeapGraphEdge* HeapGraphNode::GetRetainer(int index) const {
   IsDeadCheck("v8::HeapSnapshot::GetRetainer");
   return reinterpret_cast<const HeapGraphEdge*>(
-      reinterpret_cast<const i::HeapEntry*>(this)->retainers()->at(index));
+      ToInternal(this)->retainers()[index]);
 }
 
 
 int HeapGraphNode::GetRetainingPathsCount() const {
   IsDeadCheck("v8::HeapSnapshot::GetRetainingPathsCount");
-  return const_cast<i::HeapEntry*>(
+  return ToInternal(this)->GetRetainingPaths()->length();
-      reinterpret_cast<const i::HeapEntry*>(
-          this))->GetRetainingPaths()->length();
 }
 
 
 const HeapGraphPath* HeapGraphNode::GetRetainingPath(int index) const {
   IsDeadCheck("v8::HeapSnapshot::GetRetainingPath");
   return reinterpret_cast<const HeapGraphPath*>(
-      const_cast<i::HeapEntry*>(
+      ToInternal(this)->GetRetainingPaths()->at(index));
-          reinterpret_cast<const i::HeapEntry*>(
-              this))->GetRetainingPaths()->at(index));
 }
 
 
 const HeapGraphNode* HeapSnapshotsDiff::GetAdditionsRoot() const {
   IsDeadCheck("v8::HeapSnapshotsDiff::GetAdditionsRoot");
-  const i::HeapSnapshotsDiff* diff =
+  i::HeapSnapshotsDiff* diff =
-      reinterpret_cast<const i::HeapSnapshotsDiff*>(this);
+      const_cast<i::HeapSnapshotsDiff*>(
+          reinterpret_cast<const i::HeapSnapshotsDiff*>(this));
   return reinterpret_cast<const HeapGraphNode*>(diff->additions_root());
 }
 
 
 const HeapGraphNode* HeapSnapshotsDiff::GetDeletionsRoot() const {
   IsDeadCheck("v8::HeapSnapshotsDiff::GetDeletionsRoot");
-  const i::HeapSnapshotsDiff* diff =
+  i::HeapSnapshotsDiff* diff =
-      reinterpret_cast<const i::HeapSnapshotsDiff*>(this);
+      const_cast<i::HeapSnapshotsDiff*>(
+          reinterpret_cast<const i::HeapSnapshotsDiff*>(this));
   return reinterpret_cast<const HeapGraphNode*>(diff->deletions_root());
 }
 
 
+static i::HeapSnapshot* ToInternal(const HeapSnapshot* snapshot) {
+  return const_cast<i::HeapSnapshot*>(
+      reinterpret_cast<const i::HeapSnapshot*>(snapshot));
+}
+
+
 unsigned HeapSnapshot::GetUid() const {
   IsDeadCheck("v8::HeapSnapshot::GetUid");
-  return reinterpret_cast<const i::HeapSnapshot*>(this)->uid();
+  return ToInternal(this)->uid();
 }
 
 
 Handle<String> HeapSnapshot::GetTitle() const {
   IsDeadCheck("v8::HeapSnapshot::GetTitle");
-  const i::HeapSnapshot* snapshot =
-      reinterpret_cast<const i::HeapSnapshot*>(this);
   return Handle<String>(ToApi<String>(i::Factory::LookupAsciiSymbol(
-      snapshot->title())));
+      ToInternal(this)->title())));
 }
 
 
 const HeapGraphNode* HeapSnapshot::GetRoot() const {
   IsDeadCheck("v8::HeapSnapshot::GetHead");
-  const i::HeapSnapshot* snapshot =
+  return reinterpret_cast<const HeapGraphNode*>(ToInternal(this)->root());
-      reinterpret_cast<const i::HeapSnapshot*>(this);
-  return reinterpret_cast<const HeapGraphNode*>(snapshot->const_root());
 }
 
 
 const HeapSnapshotsDiff* HeapSnapshot::CompareWith(
     const HeapSnapshot* snapshot) const {
   IsDeadCheck("v8::HeapSnapshot::CompareWith");
-  i::HeapSnapshot* snapshot1 = const_cast<i::HeapSnapshot*>(
-      reinterpret_cast<const i::HeapSnapshot*>(this));
-  i::HeapSnapshot* snapshot2 = const_cast<i::HeapSnapshot*>(
-      reinterpret_cast<const i::HeapSnapshot*>(snapshot));
   return reinterpret_cast<const HeapSnapshotsDiff*>(
-      snapshot1->CompareWith(snapshot2));
+      ToInternal(this)->CompareWith(ToInternal(snapshot)));
 }
 
 

deps/v8/src/arm/builtins-arm.cc

@@ -1050,7 +1050,7 @@ void Builtins::Generate_FunctionCall(MacroAssembler* masm) {
   __ ldr(r2,
          FieldMemOperand(r3, SharedFunctionInfo::kFormalParameterCountOffset));
   __ mov(r2, Operand(r2, ASR, kSmiTagSize));
-  __ ldr(r3, FieldMemOperand(r3, SharedFunctionInfo::kCodeOffset));
+  __ ldr(r3, FieldMemOperand(r1, JSFunction::kCodeOffset));
   __ add(r3, r3, Operand(Code::kHeaderSize - kHeapObjectTag));
   __ cmp(r2, r0);  // Check formal and actual parameter counts.
   __ Jump(Handle<Code>(builtin(ArgumentsAdaptorTrampoline)),

deps/v8/src/arm/codegen-arm.cc

@@ -1532,9 +1532,8 @@ void CodeGenerator::CallApplyLazy(Expression* applicand,
   __ BranchOnSmi(r0, &build_args);
   __ CompareObjectType(r0, r1, r2, JS_FUNCTION_TYPE);
   __ b(ne, &build_args);
-  __ ldr(r0, FieldMemOperand(r0, JSFunction::kSharedFunctionInfoOffset));
   Handle<Code> apply_code(Builtins::builtin(Builtins::FunctionApply));
-  __ ldr(r1, FieldMemOperand(r0, SharedFunctionInfo::kCodeOffset));
+  __ ldr(r1, FieldMemOperand(r0, JSFunction::kCodeOffset));
   __ cmp(r1, Operand(apply_code));
   __ b(ne, &build_args);
 
@@ -4176,21 +4175,21 @@ void CodeGenerator::VisitCallNew(CallNew* node) {
 
 
 void CodeGenerator::GenerateClassOf(ZoneList<Expression*>* args) {
-  VirtualFrame::SpilledScope spilled_scope(frame_);
-  ASSERT(args->length() == 1);
   JumpTarget leave, null, function, non_function_constructor;
+  Register scratch = VirtualFrame::scratch0();
 
-  // Load the object into r0.
+  // Load the object into register.
+  ASSERT(args->length() == 1);
   Load(args->at(0));
-  frame_->EmitPop(r0);
+  Register tos = frame_->PopToRegister();
 
   // If the object is a smi, we return null.
-  __ tst(r0, Operand(kSmiTagMask));
+  __ tst(tos, Operand(kSmiTagMask));
   null.Branch(eq);
 
   // Check that the object is a JS object but take special care of JS
   // functions to make sure they have 'Function' as their class.
-  __ CompareObjectType(r0, r0, r1, FIRST_JS_OBJECT_TYPE);
+  __ CompareObjectType(tos, tos, scratch, FIRST_JS_OBJECT_TYPE);
   null.Branch(lt);
 
   // As long as JS_FUNCTION_TYPE is the last instance type and it is
@@ -4198,37 +4197,38 @@ void CodeGenerator::GenerateClassOf(ZoneList<Expression*>* args) {
   // LAST_JS_OBJECT_TYPE.
   STATIC_ASSERT(LAST_TYPE == JS_FUNCTION_TYPE);
   STATIC_ASSERT(JS_FUNCTION_TYPE == LAST_JS_OBJECT_TYPE + 1);
-  __ cmp(r1, Operand(JS_FUNCTION_TYPE));
+  __ cmp(scratch, Operand(JS_FUNCTION_TYPE));
   function.Branch(eq);
 
   // Check if the constructor in the map is a function.
-  __ ldr(r0, FieldMemOperand(r0, Map::kConstructorOffset));
+  __ ldr(tos, FieldMemOperand(tos, Map::kConstructorOffset));
-  __ CompareObjectType(r0, r1, r1, JS_FUNCTION_TYPE);
+  __ CompareObjectType(tos, scratch, scratch, JS_FUNCTION_TYPE);
   non_function_constructor.Branch(ne);
 
-  // The r0 register now contains the constructor function. Grab the
+  // The tos register now contains the constructor function. Grab the
   // instance class name from there.
-  __ ldr(r0, FieldMemOperand(r0, JSFunction::kSharedFunctionInfoOffset));
+  __ ldr(tos, FieldMemOperand(tos, JSFunction::kSharedFunctionInfoOffset));
-  __ ldr(r0, FieldMemOperand(r0, SharedFunctionInfo::kInstanceClassNameOffset));
+  __ ldr(tos,
-  frame_->EmitPush(r0);
+         FieldMemOperand(tos, SharedFunctionInfo::kInstanceClassNameOffset));
+  frame_->EmitPush(tos);
   leave.Jump();
 
   // Functions have class 'Function'.
   function.Bind();
-  __ mov(r0, Operand(Factory::function_class_symbol()));
+  __ mov(tos, Operand(Factory::function_class_symbol()));
-  frame_->EmitPush(r0);
+  frame_->EmitPush(tos);
   leave.Jump();
 
   // Objects with a non-function constructor have class 'Object'.
   non_function_constructor.Bind();
-  __ mov(r0, Operand(Factory::Object_symbol()));
+  __ mov(tos, Operand(Factory::Object_symbol()));
-  frame_->EmitPush(r0);
+  frame_->EmitPush(tos);
   leave.Jump();
 
   // Non-JS objects have class null.
   null.Bind();
-  __ LoadRoot(r0, Heap::kNullValueRootIndex);
+  __ LoadRoot(tos, Heap::kNullValueRootIndex);
-  frame_->EmitPush(r0);
+  frame_->EmitPush(tos);
 
   // All done.
   leave.Bind();
@@ -4236,45 +4236,51 @@ void CodeGenerator::GenerateClassOf(ZoneList<Expression*>* args) {
 
 
 void CodeGenerator::GenerateValueOf(ZoneList<Expression*>* args) {
-  VirtualFrame::SpilledScope spilled_scope(frame_);
+  Register scratch = VirtualFrame::scratch0();
-  ASSERT(args->length() == 1);
   JumpTarget leave;
+
+  ASSERT(args->length() == 1);
   Load(args->at(0));
-  frame_->EmitPop(r0);  // r0 contains object.
+  Register tos = frame_->PopToRegister();  // tos contains object.
   // if (object->IsSmi()) return the object.
-  __ tst(r0, Operand(kSmiTagMask));
+  __ tst(tos, Operand(kSmiTagMask));
   leave.Branch(eq);
   // It is a heap object - get map. If (!object->IsJSValue()) return the object.
-  __ CompareObjectType(r0, r1, r1, JS_VALUE_TYPE);
+  __ CompareObjectType(tos, scratch, scratch, JS_VALUE_TYPE);
   leave.Branch(ne);
   // Load the value.
-  __ ldr(r0, FieldMemOperand(r0, JSValue::kValueOffset));
+  __ ldr(tos, FieldMemOperand(tos, JSValue::kValueOffset));
   leave.Bind();
-  frame_->EmitPush(r0);
+  frame_->EmitPush(tos);
 }
 
 
 void CodeGenerator::GenerateSetValueOf(ZoneList<Expression*>* args) {
-  VirtualFrame::SpilledScope spilled_scope(frame_);
+  Register scratch1 = VirtualFrame::scratch0();
-  ASSERT(args->length() == 2);
+  Register scratch2 = VirtualFrame::scratch1();
   JumpTarget leave;
+
+  ASSERT(args->length() == 2);
   Load(args->at(0));    // Load the object.
   Load(args->at(1));    // Load the value.
-  frame_->EmitPop(r0);  // r0 contains value
+  Register value = frame_->PopToRegister();
-  frame_->EmitPop(r1);  // r1 contains object
+  Register object = frame_->PopToRegister(value);
   // if (object->IsSmi()) return object.
-  __ tst(r1, Operand(kSmiTagMask));
+  __ tst(object, Operand(kSmiTagMask));
   leave.Branch(eq);
   // It is a heap object - get map. If (!object->IsJSValue()) return the object.
-  __ CompareObjectType(r1, r2, r2, JS_VALUE_TYPE);
+  __ CompareObjectType(object, scratch1, scratch1, JS_VALUE_TYPE);
   leave.Branch(ne);
   // Store the value.
-  __ str(r0, FieldMemOperand(r1, JSValue::kValueOffset));
+  __ str(value, FieldMemOperand(object, JSValue::kValueOffset));
   // Update the write barrier.
-  __ RecordWrite(r1, Operand(JSValue::kValueOffset - kHeapObjectTag), r2, r3);
+  __ RecordWrite(object,
+                 Operand(JSValue::kValueOffset - kHeapObjectTag),
+                 scratch1,
+                 scratch2);
   // Leave.
   leave.Bind();
-  frame_->EmitPush(r0);
+  frame_->EmitPush(value);
 }
 
 
@@ -4558,22 +4564,18 @@ class DeferredStringCharCodeAt : public DeferredCode {
 // This generates code that performs a String.prototype.charCodeAt() call
 // or returns a smi in order to trigger conversion.
 void CodeGenerator::GenerateStringCharCodeAt(ZoneList<Expression*>* args) {
-  VirtualFrame::SpilledScope spilled_scope(frame_);
   Comment(masm_, "[ GenerateStringCharCodeAt");
   ASSERT(args->length() == 2);
 
   Load(args->at(0));
   Load(args->at(1));
 
-  Register index = r1;
+  Register index = frame_->PopToRegister();
-  Register object = r2;
+  Register object = frame_->PopToRegister(index);
-
-  frame_->EmitPop(r1);
-  frame_->EmitPop(r2);
 
   // We need two extra registers.
-  Register scratch = r3;
+  Register scratch = VirtualFrame::scratch0();
-  Register result = r0;
+  Register result = VirtualFrame::scratch1();
 
   DeferredStringCharCodeAt* deferred =
       new DeferredStringCharCodeAt(object,
@@ -4608,16 +4610,13 @@ class DeferredStringCharFromCode : public DeferredCode {
 
 // Generates code for creating a one-char string from a char code.
 void CodeGenerator::GenerateStringCharFromCode(ZoneList<Expression*>* args) {
-  VirtualFrame::SpilledScope spilled_scope(frame_);
   Comment(masm_, "[ GenerateStringCharFromCode");
   ASSERT(args->length() == 1);
 
   Load(args->at(0));
 
-  Register code = r1;
+  Register result = frame_->GetTOSRegister();
-  Register result = r0;
+  Register code = frame_->PopToRegister(result);
-
-  frame_->EmitPop(code);
 
   DeferredStringCharFromCode* deferred = new DeferredStringCharFromCode(
       code, result);
@@ -4679,23 +4678,20 @@ class DeferredStringCharAt : public DeferredCode {
 // This generates code that performs a String.prototype.charAt() call
 // or returns a smi in order to trigger conversion.
 void CodeGenerator::GenerateStringCharAt(ZoneList<Expression*>* args) {
-  VirtualFrame::SpilledScope spilled_scope(frame_);
   Comment(masm_, "[ GenerateStringCharAt");
   ASSERT(args->length() == 2);
 
   Load(args->at(0));
   Load(args->at(1));
 
-  Register index = r1;
+  Register index = frame_->PopToRegister();
-  Register object = r2;
+  Register object = frame_->PopToRegister(index);
-
-  frame_->EmitPop(r1);
-  frame_->EmitPop(r2);
 
   // We need three extra registers.
-  Register scratch1 = r3;
+  Register scratch1 = VirtualFrame::scratch0();
-  Register scratch2 = r4;
+  Register scratch2 = VirtualFrame::scratch1();
-  Register result = r0;
+  // Use r6 without notifying the virtual frame.
+  Register result = r6;
 
   DeferredStringCharAt* deferred =
       new DeferredStringCharAt(object,
@@ -4874,13 +4870,13 @@ void CodeGenerator::GenerateArgumentsLength(ZoneList<Expression*>* args) {
 
 
 void CodeGenerator::GenerateArguments(ZoneList<Expression*>* args) {
-  VirtualFrame::SpilledScope spilled_scope(frame_);
   ASSERT(args->length() == 1);
 
   // Satisfy contract with ArgumentsAccessStub:
   // Load the key into r1 and the formal parameters count into r0.
   Load(args->at(0));
-  frame_->EmitPop(r1);
+  frame_->PopToR1();
+  frame_->SpillAll();
   __ mov(r0, Operand(Smi::FromInt(scope()->num_parameters())));
 
   // Call the shared stub to get to arguments[key].
@@ -5108,9 +5104,7 @@ class DeferredSearchCache: public DeferredCode {
 void DeferredSearchCache::Generate() {
   __ Push(cache_, key_);
   __ CallRuntime(Runtime::kGetFromCache, 2);
-  if (!dst_.is(r0)) {
+  __ Move(dst_, r0);
-    __ mov(dst_, r0);
-  }
 }
 
 
@@ -5130,33 +5124,42 @@ void CodeGenerator::GenerateGetFromCache(ZoneList<Expression*>* args) {
 
   Load(args->at(1));
 
-  VirtualFrame::SpilledScope spilled_scope(frame_);
+  frame_->PopToR1();
-
+  frame_->SpillAll();
-  frame_->EmitPop(r2);
+  Register key = r1;  // Just poped to r1
+  Register result = r0;  // Free, as frame has just been spilled.
+  Register scratch1 = VirtualFrame::scratch0();
+  Register scratch2 = VirtualFrame::scratch1();
 
-  __ ldr(r1, ContextOperand(cp, Context::GLOBAL_INDEX));
+  __ ldr(scratch1, ContextOperand(cp, Context::GLOBAL_INDEX));
-  __ ldr(r1, FieldMemOperand(r1, GlobalObject::kGlobalContextOffset));
+  __ ldr(scratch1,
-  __ ldr(r1, ContextOperand(r1, Context::JSFUNCTION_RESULT_CACHES_INDEX));
+         FieldMemOperand(scratch1, GlobalObject::kGlobalContextOffset));
-  __ ldr(r1, FieldMemOperand(r1, FixedArray::OffsetOfElementAt(cache_id)));
+  __ ldr(scratch1,
+         ContextOperand(scratch1, Context::JSFUNCTION_RESULT_CACHES_INDEX));
+  __ ldr(scratch1,
+         FieldMemOperand(scratch1, FixedArray::OffsetOfElementAt(cache_id)));
 
-  DeferredSearchCache* deferred = new DeferredSearchCache(r0, r1, r2);
+  DeferredSearchCache* deferred =
+      new DeferredSearchCache(result, scratch1, key);
 
   const int kFingerOffset =
       FixedArray::OffsetOfElementAt(JSFunctionResultCache::kFingerIndex);
   STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize == 1);
-  __ ldr(r0, FieldMemOperand(r1, kFingerOffset));
+  __ ldr(result, FieldMemOperand(scratch1, kFingerOffset));
-  // r0 now holds finger offset as a smi.
+  // result now holds finger offset as a smi.
-  __ add(r3, r1, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
+  __ add(scratch2, scratch1, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-  // r3 now points to the start of fixed array elements.
+  // scratch2 now points to the start of fixed array elements.
-  __ ldr(r0, MemOperand(r3, r0, LSL, kPointerSizeLog2 - kSmiTagSize, PreIndex));
+  __ ldr(result,
-  // Note side effect of PreIndex: r3 now points to the key of the pair.
+         MemOperand(
-  __ cmp(r2, r0);
+             scratch2, result, LSL, kPointerSizeLog2 - kSmiTagSize, PreIndex));
+  // Note side effect of PreIndex: scratch2 now points to the key of the pair.
+  __ cmp(key, result);
   deferred->Branch(ne);
 
-  __ ldr(r0, MemOperand(r3, kPointerSize));
+  __ ldr(result, MemOperand(scratch2, kPointerSize));
 
   deferred->BindExit();
-  frame_->EmitPush(r0);
+  frame_->EmitPush(result);
 }
 
 
@@ -6851,6 +6854,11 @@ void FastNewClosureStub::Generate(MacroAssembler* masm) {
   __ str(cp, FieldMemOperand(r0, JSFunction::kContextOffset));
   __ str(r1, FieldMemOperand(r0, JSFunction::kLiteralsOffset));
 
+  // Initialize the code pointer in the function to be the one
+  // found in the shared function info object.
+  __ ldr(r3, FieldMemOperand(r3, SharedFunctionInfo::kCodeOffset));
+  __ str(r3, FieldMemOperand(r0, JSFunction::kCodeOffset));
+
   // Return result. The argument function info has been popped already.
   __ Ret();
 
@@ -10444,11 +10452,9 @@ void StringCharCodeAtGenerator::GenerateSlow(
     // NumberToSmi discards numbers that are not exact integers.
     __ CallRuntime(Runtime::kNumberToSmi, 1);
   }
-  if (!scratch_.is(r0)) {
   // Save the conversion result before the pop instructions below
   // have a chance to overwrite it.
-    __ mov(scratch_, r0);
+  __ Move(scratch_, r0);
-  }
   __ pop(index_);
   __ pop(object_);
   // Reload the instance type.
@@ -10467,9 +10473,7 @@ void StringCharCodeAtGenerator::GenerateSlow(
   call_helper.BeforeCall(masm);
   __ Push(object_, index_);
   __ CallRuntime(Runtime::kStringCharCodeAt, 2);
-  if (!result_.is(r0)) {
+  __ Move(result_, r0);
-    __ mov(result_, r0);
-  }
   call_helper.AfterCall(masm);
   __ jmp(&exit_);
 
@@ -10510,9 +10514,7 @@ void StringCharFromCodeGenerator::GenerateSlow(
   call_helper.BeforeCall(masm);
   __ push(code_);
   __ CallRuntime(Runtime::kCharFromCode, 1);
-  if (!result_.is(r0)) {
+  __ Move(result_, r0);
-    __ mov(result_, r0);
-  }
   call_helper.AfterCall(masm);
   __ jmp(&exit_);
 

deps/v8/src/arm/macro-assembler-arm.cc

@@ -757,7 +757,7 @@ void MacroAssembler::InvokeFunction(Register fun,
                       SharedFunctionInfo::kFormalParameterCountOffset));
   mov(expected_reg, Operand(expected_reg, ASR, kSmiTagSize));
   ldr(code_reg,
-      MemOperand(code_reg, SharedFunctionInfo::kCodeOffset - kHeapObjectTag));
+      MemOperand(r1, JSFunction::kCodeOffset - kHeapObjectTag));
   add(code_reg, code_reg, Operand(Code::kHeaderSize - kHeapObjectTag));
 
   ParameterCount expected(expected_reg);
@@ -1508,8 +1508,7 @@ void MacroAssembler::GetBuiltinEntry(Register target, Builtins::JavaScript id) {
     // Make sure the code objects in the builtins object and in the
     // builtin function are the same.
     push(r1);
-    ldr(r1, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset));
+    ldr(r1, FieldMemOperand(r1, JSFunction::kCodeOffset));
-    ldr(r1, FieldMemOperand(r1, SharedFunctionInfo::kCodeOffset));
     cmp(r1, target);
     Assert(eq, "Builtin code object changed");
     pop(r1);

deps/v8/src/bootstrapper.cc

@@ -56,7 +56,7 @@ class SourceCodeCache BASE_EMBEDDED {
   }
 
   void Iterate(ObjectVisitor* v) {
-    v->VisitPointer(BitCast<Object**, FixedArray**>(&cache_));
+    v->VisitPointer(BitCast<Object**>(&cache_));
   }
 
 
@@ -470,6 +470,7 @@ Handle<JSFunction> Genesis::CreateEmptyFunction() {
   Handle<Code> code =
       Handle<Code>(Builtins::builtin(Builtins::EmptyFunction));
   empty_function->set_code(*code);
+  empty_function->shared()->set_code(*code);
   Handle<String> source = Factory::NewStringFromAscii(CStrVector("() {}"));
   Handle<Script> script = Factory::NewScript(source);
   script->set_type(Smi::FromInt(Script::TYPE_NATIVE));
@@ -1545,6 +1546,8 @@ bool Genesis::InstallJSBuiltins(Handle<JSBuiltinsObject> builtins) {
     Handle<SharedFunctionInfo> shared
         = Handle<SharedFunctionInfo>(function->shared());
     if (!EnsureCompiled(shared, CLEAR_EXCEPTION)) return false;
+    // Set the code object on the function object.
+    function->set_code(function->shared()->code());
     builtins->set_javascript_builtin_code(id, shared->code());
   }
   return true;

deps/v8/src/checks.h

@@ -280,14 +280,13 @@ template <int> class StaticAssertionHelper { };
 
 
 // The ASSERT macro is equivalent to CHECK except that it only
-// generates code in debug builds.  Ditto STATIC_ASSERT.
+// generates code in debug builds.
 #ifdef DEBUG
 #define ASSERT_RESULT(expr)  CHECK(expr)
 #define ASSERT(condition)    CHECK(condition)
 #define ASSERT_EQ(v1, v2)    CHECK_EQ(v1, v2)
 #define ASSERT_NE(v1, v2)    CHECK_NE(v1, v2)
 #define ASSERT_GE(v1, v2)    CHECK_GE(v1, v2)
-#define STATIC_ASSERT(test)  STATIC_CHECK(test)
 #define SLOW_ASSERT(condition) if (FLAG_enable_slow_asserts) CHECK(condition)
 #else
 #define ASSERT_RESULT(expr)     (expr)
@@ -295,9 +294,14 @@ template <int> class StaticAssertionHelper { };
 #define ASSERT_EQ(v1, v2)      ((void) 0)
 #define ASSERT_NE(v1, v2)      ((void) 0)
 #define ASSERT_GE(v1, v2)      ((void) 0)
-#define STATIC_ASSERT(test)    ((void) 0)
 #define SLOW_ASSERT(condition) ((void) 0)
 #endif
+// Static asserts has no impact on runtime performance, so they can be
+// safely enabled in release mode. Moreover, the ((void) 0) expression
+// obeys different syntax rules than typedef's, e.g. it can't appear
+// inside class declaration, this leads to inconsistency between debug
+// and release compilation modes behaviour.
+#define STATIC_ASSERT(test)  STATIC_CHECK(test)
 
 
 #define ASSERT_TAG_ALIGNED(address) \

deps/v8/src/codegen.cc

@@ -77,14 +77,23 @@ void CodeGenerator::ProcessDeferred() {
     // Generate the code.
     Comment cmnt(masm_, code->comment());
     masm_->bind(code->entry_label());
+    if (code->AutoSaveAndRestore()) {
       code->SaveRegisters();
+    }
     code->Generate();
+    if (code->AutoSaveAndRestore()) {
       code->RestoreRegisters();
-    masm_->jmp(code->exit_label());
+      code->Exit();
+    }
   }
 }
 
 
+void DeferredCode::Exit() {
+  masm_->jmp(exit_label());
+}
+
+
 void CodeGenerator::SetFrame(VirtualFrame* new_frame,
                              RegisterFile* non_frame_registers) {
   RegisterFile saved_counts;

deps/v8/src/codegen.h

@@ -319,6 +319,15 @@ class DeferredCode: public ZoneObject {
 
   void SaveRegisters();
   void RestoreRegisters();
+  void Exit();
+
+  // If this returns true then all registers will be saved for the duration
+  // of the Generate() call.  Otherwise the registers are not saved and the
+  // Generate() call must bracket runtime any runtime calls with calls to
+  // SaveRegisters() and RestoreRegisters().  In this case the Generate
+  // method must also call Exit() in order to return to the non-deferred
+  // code.
+  virtual bool AutoSaveAndRestore() { return true; }
 
  protected:
   MacroAssembler* masm_;

deps/v8/src/cpu-profiler.cc

@@ -476,7 +476,7 @@ void CpuProfiler::StartProcessorIfNotStarted() {
 
 CpuProfile* CpuProfiler::StopCollectingProfile(const char* title) {
   const double actual_sampling_rate = generator_->actual_sampling_rate();
-  StopProcessorIfLastProfile();
+  StopProcessorIfLastProfile(title);
   CpuProfile* result =
       profiles_->StopProfiling(TokenEnumerator::kNoSecurityToken,
                                title,
@@ -491,14 +491,15 @@ CpuProfile* CpuProfiler::StopCollectingProfile(const char* title) {
 CpuProfile* CpuProfiler::StopCollectingProfile(Object* security_token,
                                                String* title) {
   const double actual_sampling_rate = generator_->actual_sampling_rate();
-  StopProcessorIfLastProfile();
+  const char* profile_title = profiles_->GetName(title);
+  StopProcessorIfLastProfile(profile_title);
   int token = token_enumerator_->GetTokenId(security_token);
-  return profiles_->StopProfiling(token, title, actual_sampling_rate);
+  return profiles_->StopProfiling(token, profile_title, actual_sampling_rate);
 }
 
 
-void CpuProfiler::StopProcessorIfLastProfile() {
+void CpuProfiler::StopProcessorIfLastProfile(const char* title) {
-  if (profiles_->is_last_profile()) {
+  if (profiles_->IsLastProfile(title)) {
     reinterpret_cast<Sampler*>(Logger::ticker_)->Stop();
     processor_->Stop();
     processor_->Join();

deps/v8/src/cpu-profiler.h

@@ -260,7 +260,7 @@ class CpuProfiler {
   void StartProcessorIfNotStarted();
   CpuProfile* StopCollectingProfile(const char* title);
   CpuProfile* StopCollectingProfile(Object* security_token, String* title);
-  void StopProcessorIfLastProfile();
+  void StopProcessorIfLastProfile(const char* title);
 
   CpuProfilesCollection* profiles_;
   unsigned next_profile_uid_;

deps/v8/src/debug.cc

@@ -852,8 +852,8 @@ void Debug::PreemptionWhileInDebugger() {
 
 
 void Debug::Iterate(ObjectVisitor* v) {
-  v->VisitPointer(BitCast<Object**, Code**>(&(debug_break_return_)));
+  v->VisitPointer(BitCast<Object**>(&(debug_break_return_)));
-  v->VisitPointer(BitCast<Object**, Code**>(&(debug_break_slot_)));
+  v->VisitPointer(BitCast<Object**>(&(debug_break_slot_)));
 }
 
 

deps/v8/src/factory.cc

@@ -486,6 +486,10 @@ Handle<JSFunction> Factory::NewFunction(Handle<String> name,
                                         bool force_initial_map) {
   // Allocate the function
   Handle<JSFunction> function = NewFunction(name, the_hole_value());
+
+  // Setup the code pointer in both the shared function info and in
+  // the function itself.
+  function->shared()->set_code(*code);
   function->set_code(*code);
 
   if (force_initial_map ||
@@ -511,9 +515,12 @@ Handle<JSFunction> Factory::NewFunctionWithPrototype(Handle<String> name,
                                                      Handle<JSObject> prototype,
                                                      Handle<Code> code,
                                                      bool force_initial_map) {
-  // Allocate the function
+  // Allocate the function.
   Handle<JSFunction> function = NewFunction(name, prototype);
 
+  // Setup the code pointer in both the shared function info and in
+  // the function itself.
+  function->shared()->set_code(*code);
   function->set_code(*code);
 
   if (force_initial_map ||
@@ -535,6 +542,7 @@ Handle<JSFunction> Factory::NewFunctionWithPrototype(Handle<String> name,
 Handle<JSFunction> Factory::NewFunctionWithoutPrototype(Handle<String> name,
                                                         Handle<Code> code) {
   Handle<JSFunction> function = NewFunctionWithoutPrototype(name);
+  function->shared()->set_code(*code);
   function->set_code(*code);
   ASSERT(!function->has_initial_map());
   ASSERT(!function->has_prototype());

deps/v8/src/factory.h

@@ -329,7 +329,7 @@ class Factory : public AllStatic {
 
 #define ROOT_ACCESSOR(type, name, camel_name)                                  \
   static inline Handle<type> name() {                                          \
-    return Handle<type>(BitCast<type**, Object**>(                             \
+    return Handle<type>(BitCast<type**>(                                       \
         &Heap::roots_[Heap::k##camel_name##RootIndex]));                       \
   }
   ROOT_LIST(ROOT_ACCESSOR)
@@ -337,7 +337,7 @@ class Factory : public AllStatic {
 
 #define SYMBOL_ACCESSOR(name, str) \
   static inline Handle<String> name() {                                        \
-    return Handle<String>(BitCast<String**, Object**>(                         \
+    return Handle<String>(BitCast<String**>(                                   \
         &Heap::roots_[Heap::k##name##RootIndex]));                             \
   }
   SYMBOL_LIST(SYMBOL_ACCESSOR)

deps/v8/src/handles-inl.h

@@ -47,7 +47,7 @@ template <class T>
 inline T* Handle<T>::operator*() const {
   ASSERT(location_ != NULL);
   ASSERT(reinterpret_cast<Address>(*location_) != kHandleZapValue);
-  return *location_;
+  return *BitCast<T**>(location_);
 }
 
 

deps/v8/src/handles.cc

@@ -771,20 +771,30 @@ bool CompileLazyShared(Handle<SharedFunctionInfo> shared,
 bool CompileLazy(Handle<JSFunction> function,
                  Handle<Object> receiver,
                  ClearExceptionFlag flag) {
+  if (function->shared()->is_compiled()) {
+    function->set_code(function->shared()->code());
+    return true;
+  } else {
     CompilationInfo info(function, 0, receiver);
     bool result = CompileLazyHelper(&info, flag);
     PROFILE(FunctionCreateEvent(*function));
     return result;
+  }
 }
 
 
 bool CompileLazyInLoop(Handle<JSFunction> function,
                        Handle<Object> receiver,
                        ClearExceptionFlag flag) {
+  if (function->shared()->is_compiled()) {
+    function->set_code(function->shared()->code());
+    return true;
+  } else {
     CompilationInfo info(function, 1, receiver);
     bool result = CompileLazyHelper(&info, flag);
     PROFILE(FunctionCreateEvent(*function));
     return result;
+  }
 }
 
 

deps/v8/src/heap-profiler.cc

@@ -111,10 +111,10 @@ int Clusterizer::CalculateNetworkSize(JSObject* obj) {
   int size = obj->Size();
   // If 'properties' and 'elements' are non-empty (thus, non-shared),
   // take their size into account.
-  if (FixedArray::cast(obj->properties())->length() != 0) {
+  if (obj->properties() != Heap::empty_fixed_array()) {
     size += obj->properties()->Size();
   }
-  if (FixedArray::cast(obj->elements())->length() != 0) {
+  if (obj->elements() != Heap::empty_fixed_array()) {
     size += obj->elements()->Size();
   }
   // For functions, also account non-empty context and literals sizes.
@@ -360,7 +360,7 @@ HeapSnapshot* HeapProfiler::TakeSnapshot(String* name) {
 
 
 HeapSnapshot* HeapProfiler::TakeSnapshotImpl(const char* name) {
-  Heap::CollectAllGarbage(false);
+  Heap::CollectAllGarbage(true);
   HeapSnapshot* result = snapshots_->NewSnapshot(name, next_snapshot_uid_++);
   HeapSnapshotGenerator generator(result);
   generator.GenerateSnapshot();

deps/v8/src/heap.cc

@@ -2452,39 +2452,62 @@ class FlushingStackVisitor : public ThreadVisitor {
 };
 
 
-static void FlushCodeForFunction(SharedFunctionInfo* function_info) {
+static bool CodeIsActive(Code* code) {
+  // Make sure we are not referencing the code from the stack.
+  for (StackFrameIterator it; !it.done(); it.Advance()) {
+    if (code->contains(it.frame()->pc())) return true;
+  }
+  // Iterate the archived stacks in all threads to check if
+  // the code is referenced.
+  FlushingStackVisitor threadvisitor(code);
+  ThreadManager::IterateArchivedThreads(&threadvisitor);
+  if (threadvisitor.FoundCode()) return true;
+  return false;
+}
+
+
+static void FlushCodeForFunction(JSFunction* function) {
+  SharedFunctionInfo* shared_info = function->shared();
+
+  // Special handling if the function and shared info objects
+  // have different code objects.
+  if (function->code() != shared_info->code()) {
+    // If the shared function has been flushed but the function has not,
+    // we flush the function if possible.
+    if (!shared_info->is_compiled() && function->is_compiled() &&
+        !CodeIsActive(function->code())) {
+      function->set_code(shared_info->code());
+    }
+    return;
+  }
+
   // The function must be compiled and have the source code available,
   // to be able to recompile it in case we need the function again.
-  if (!(function_info->is_compiled() && function_info->HasSourceCode())) return;
+  if (!(shared_info->is_compiled() && shared_info->HasSourceCode())) return;
 
   // We never flush code for Api functions.
-  if (function_info->IsApiFunction()) return;
+  if (shared_info->IsApiFunction()) return;
 
   // Only flush code for functions.
-  if (!function_info->code()->kind() == Code::FUNCTION) return;
+  if (!shared_info->code()->kind() == Code::FUNCTION) return;
 
   // Function must be lazy compilable.
-  if (!function_info->allows_lazy_compilation()) return;
+  if (!shared_info->allows_lazy_compilation()) return;
 
   // If this is a full script wrapped in a function we do no flush the code.
-  if (function_info->is_toplevel()) return;
+  if (shared_info->is_toplevel()) return;
 
   // If this function is in the compilation cache we do not flush the code.
-  if (CompilationCache::HasFunction(function_info)) return;
+  if (CompilationCache::HasFunction(shared_info)) return;
 
-  // Make sure we are not referencing the code from the stack.
+  // Check stack and archived threads for the code.
-  for (StackFrameIterator it; !it.done(); it.Advance()) {
+  if (CodeIsActive(shared_info->code())) return;
-    if (function_info->code()->contains(it.frame()->pc())) return;
-  }
-  // Iterate the archived stacks in all threads to check if
-  // the code is referenced.
-  FlushingStackVisitor threadvisitor(function_info->code());
-  ThreadManager::IterateArchivedThreads(&threadvisitor);
-  if (threadvisitor.FoundCode()) return;
 
   // Compute the lazy compilable version of the code.
   HandleScope scope;
-  function_info->set_code(*ComputeLazyCompile(function_info->length()));
+  Code* code = *ComputeLazyCompile(shared_info->length());
+  shared_info->set_code(code);
+  function->set_code(code);
 }
 
 
@@ -2496,12 +2519,12 @@ void Heap::FlushCode() {
   HeapObjectIterator it(old_pointer_space());
   for (HeapObject* obj = it.next(); obj != NULL; obj = it.next()) {
     if (obj->IsJSFunction()) {
-      JSFunction* jsfunction = JSFunction::cast(obj);
+      JSFunction* function = JSFunction::cast(obj);
 
       // The function must have a valid context and not be a builtin.
-      if (jsfunction->unchecked_context()->IsContext() &&
+      if (function->unchecked_context()->IsContext() &&
-          !jsfunction->IsBuiltin()) {
+          !function->IsBuiltin()) {
-        FlushCodeForFunction(jsfunction->shared());
+        FlushCodeForFunction(function);
       }
     }
   }
@@ -2651,6 +2674,7 @@ Object* Heap::InitializeFunction(JSFunction* function,
   function->initialize_properties();
   function->initialize_elements();
   function->set_shared(shared);
+  function->set_code(shared->code());
   function->set_prototype_or_initial_map(prototype);
   function->set_context(undefined_value());
   function->set_literals(empty_fixed_array());
@@ -4000,7 +4024,7 @@ void Heap::IterateStrongRoots(ObjectVisitor* v, VisitMode mode) {
   v->VisitPointers(&roots_[0], &roots_[kStrongRootListLength]);
   v->Synchronize("strong_root_list");
 
-  v->VisitPointer(BitCast<Object**, String**>(&hidden_symbol_));
+  v->VisitPointer(BitCast<Object**>(&hidden_symbol_));
   v->Synchronize("symbol");
 
   Bootstrapper::Iterate(v);

deps/v8/src/ia32/assembler-ia32.cc

@@ -1142,6 +1142,21 @@ void Assembler::rcl(Register dst, uint8_t imm8) {
 }
 
 
+void Assembler::rcr(Register dst, uint8_t imm8) {
+  EnsureSpace ensure_space(this);
+  last_pc_ = pc_;
+  ASSERT(is_uint5(imm8));  // illegal shift count
+  if (imm8 == 1) {
+    EMIT(0xD1);
+    EMIT(0xD8 | dst.code());
+  } else {
+    EMIT(0xC1);
+    EMIT(0xD8 | dst.code());
+    EMIT(imm8);
+  }
+}
+
+
 void Assembler::sar(Register dst, uint8_t imm8) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;

deps/v8/src/ia32/assembler-ia32.h

@@ -625,6 +625,7 @@ class Assembler : public Malloced {
   void or_(const Operand& dst, const Immediate& x);
 
   void rcl(Register dst, uint8_t imm8);
+  void rcr(Register dst, uint8_t imm8);
 
   void sar(Register dst, uint8_t imm8);
   void sar_cl(Register dst);

deps/v8/src/ia32/builtins-ia32.cc

@@ -548,7 +548,7 @@ void Builtins::Generate_FunctionCall(MacroAssembler* masm) {
   __ mov(ebx,
          FieldOperand(edx, SharedFunctionInfo::kFormalParameterCountOffset));
   __ SmiUntag(ebx);
-  __ mov(edx, FieldOperand(edx, SharedFunctionInfo::kCodeOffset));
+  __ mov(edx, FieldOperand(edi, JSFunction::kCodeOffset));
   __ lea(edx, FieldOperand(edx, Code::kHeaderSize));
   __ cmp(eax, Operand(ebx));
   __ j(not_equal, Handle<Code>(builtin(ArgumentsAdaptorTrampoline)));

deps/v8/src/ia32/codegen-ia32.cc

@@ -1038,7 +1038,11 @@ const char* GenericBinaryOpStub::GetName() {
 }
 
 
-// Call the specialized stub for a binary operation.
+// Perform or call the specialized stub for a binary operation.  Requires the
+// three registers left, right and dst to be distinct and spilled.  This
+// deferred operation has up to three entry points:  The main one calls the
+// runtime system.  The second is for when the result is a non-Smi.  The
+// third is for when at least one of the inputs is non-Smi and we have SSE2.
 class DeferredInlineBinaryOperation: public DeferredCode {
  public:
   DeferredInlineBinaryOperation(Token::Value op,
@@ -1051,11 +1055,23 @@ class DeferredInlineBinaryOperation: public DeferredCode {
       : op_(op), dst_(dst), left_(left), right_(right),
         left_info_(left_info), right_info_(right_info), mode_(mode) {
     set_comment("[ DeferredInlineBinaryOperation");
+    ASSERT(!left.is(right));
   }
 
   virtual void Generate();
 
+  // This stub makes explicit calls to SaveRegisters(), RestoreRegisters() and
+  // Exit().
+  virtual bool AutoSaveAndRestore() { return false; }
+
+  void JumpToAnswerOutOfRange(Condition cond);
+  void JumpToConstantRhs(Condition cond, Smi* smi_value);
+  Label* NonSmiInputLabel();
+
  private:
+  void GenerateAnswerOutOfRange();
+  void GenerateNonSmiInput();
+
   Token::Value op_;
   Register dst_;
   Register left_;
@@ -1063,13 +1079,40 @@ class DeferredInlineBinaryOperation: public DeferredCode {
   TypeInfo left_info_;
   TypeInfo right_info_;
   OverwriteMode mode_;
+  Label answer_out_of_range_;
+  Label non_smi_input_;
+  Label constant_rhs_;
+  Smi* smi_value_;
 };
 
 
+Label* DeferredInlineBinaryOperation::NonSmiInputLabel() {
+  if (Token::IsBitOp(op_) && CpuFeatures::IsSupported(SSE2)) {
+    return &non_smi_input_;
+  } else {
+    return entry_label();
+  }
+}
+
+
+void DeferredInlineBinaryOperation::JumpToAnswerOutOfRange(Condition cond) {
+  __ j(cond, &answer_out_of_range_);
+}
+
+
+void DeferredInlineBinaryOperation::JumpToConstantRhs(Condition cond,
+                                                      Smi* smi_value) {
+  smi_value_ = smi_value;
+  __ j(cond, &constant_rhs_);
+}
+
+
 void DeferredInlineBinaryOperation::Generate() {
-  Label done;
+  // Registers are not saved implicitly for this stub, so we should not
-  if (CpuFeatures::IsSupported(SSE2) && ((op_ == Token::ADD) ||
+  // tread on the registers that were not passed to us.
-      (op_ ==Token::SUB) ||
+  if (CpuFeatures::IsSupported(SSE2) &&
+      ((op_ == Token::ADD) ||
+       (op_ == Token::SUB) ||
        (op_ == Token::MUL) ||
        (op_ == Token::DIV))) {
     CpuFeatures::Scope use_sse2(SSE2);
@@ -1131,7 +1174,6 @@ void DeferredInlineBinaryOperation::Generate() {
     __ cvtsi2sd(xmm1, Operand(right_));
     __ SmiTag(right_);
     if (mode_ == OVERWRITE_RIGHT || mode_ == NO_OVERWRITE) {
-      Label alloc_failure;
       __ push(left_);
       __ AllocateHeapNumber(dst_, left_, no_reg, &after_alloc_failure);
       __ pop(left_);
@@ -1146,19 +1188,200 @@ void DeferredInlineBinaryOperation::Generate() {
       default: UNREACHABLE();
     }
     __ movdbl(FieldOperand(dst_, HeapNumber::kValueOffset), xmm0);
-    __ jmp(&done);
+    Exit();
+
 
     __ bind(&after_alloc_failure);
     __ pop(left_);
     __ bind(&call_runtime);
   }
+  // Register spilling is not done implicitly for this stub.
+  // We can't postpone it any more now though.
+  SaveRegisters();
+
   GenericBinaryOpStub stub(op_,
                            mode_,
                            NO_SMI_CODE_IN_STUB,
                            TypeInfo::Combine(left_info_, right_info_));
   stub.GenerateCall(masm_, left_, right_);
   if (!dst_.is(eax)) __ mov(dst_, eax);
-  __ bind(&done);
+  RestoreRegisters();
+  Exit();
+
+  if (non_smi_input_.is_linked() || constant_rhs_.is_linked()) {
+    GenerateNonSmiInput();
+  }
+  if (answer_out_of_range_.is_linked()) {
+    GenerateAnswerOutOfRange();
+  }
+}
+
+
+void DeferredInlineBinaryOperation::GenerateNonSmiInput() {
+  // We know at least one of the inputs was not a Smi.
+  // This is a third entry point into the deferred code.
+  // We may not overwrite left_ because we want to be able
+  // to call the handling code for non-smi answer and it
+  // might want to overwrite the heap number in left_.
+  ASSERT(!right_.is(dst_));
+  ASSERT(!left_.is(dst_));
+  ASSERT(!left_.is(right_));
+  // This entry point is used for bit ops where the right hand side
+  // is a constant Smi and the left hand side is a heap object.  It
+  // is also used for bit ops where both sides are unknown, but where
+  // at least one of them is a heap object.
+  bool rhs_is_constant = constant_rhs_.is_linked();
+  // We can't generate code for both cases.
+  ASSERT(!non_smi_input_.is_linked() || !constant_rhs_.is_linked());
+
+  if (FLAG_debug_code) {
+    __ int3();  // We don't fall through into this code.
+  }
+
+  __ bind(&non_smi_input_);
+
+  if (rhs_is_constant) {
+    __ bind(&constant_rhs_);
+    // In this case the input is a heap object and it is in the dst_ register.
+    // The left_ and right_ registers have not been initialized yet.
+    __ mov(right_, Immediate(smi_value_));
+    __ mov(left_, Operand(dst_));
+    if (!CpuFeatures::IsSupported(SSE2)) {
+      __ jmp(entry_label());
+      return;
+    } else {
+      CpuFeatures::Scope use_sse2(SSE2);
+      __ JumpIfNotNumber(dst_, left_info_, entry_label());
+      __ ConvertToInt32(dst_, left_, dst_, left_info_, entry_label());
+      __ SmiUntag(right_);
+    }
+  } else {
+    // We know we have SSE2 here because otherwise the label is not linked (see
+    // NonSmiInputLabel).
+    CpuFeatures::Scope use_sse2(SSE2);
+    // Handle the non-constant right hand side situation:
+    if (left_info_.IsSmi()) {
+      // Right is a heap object.
+      __ JumpIfNotNumber(right_, right_info_, entry_label());
+      __ ConvertToInt32(right_, right_, dst_, left_info_, entry_label());
+      __ mov(dst_, Operand(left_));
+      __ SmiUntag(dst_);
+    } else if (right_info_.IsSmi()) {
+      // Left is a heap object.
+      __ JumpIfNotNumber(left_, left_info_, entry_label());
+      __ ConvertToInt32(dst_, left_, dst_, left_info_, entry_label());
+      __ SmiUntag(right_);
+    } else {
+      // Here we don't know if it's one or both that is a heap object.
+      Label only_right_is_heap_object, got_both;
+      __ mov(dst_, Operand(left_));
+      __ SmiUntag(dst_, &only_right_is_heap_object);
+      // Left was a heap object.
+      __ JumpIfNotNumber(left_, left_info_, entry_label());
+      __ ConvertToInt32(dst_, left_, dst_, left_info_, entry_label());
+      __ SmiUntag(right_, &got_both);
+      // Both were heap objects.
+      __ rcl(right_, 1);  // Put tag back.
+      __ JumpIfNotNumber(right_, right_info_, entry_label());
+      __ ConvertToInt32(right_, right_, no_reg, left_info_, entry_label());
+      __ jmp(&got_both);
+      __ bind(&only_right_is_heap_object);
+      __ JumpIfNotNumber(right_, right_info_, entry_label());
+      __ ConvertToInt32(right_, right_, no_reg, left_info_, entry_label());
+      __ bind(&got_both);
+    }
+  }
+  ASSERT(op_ == Token::BIT_AND ||
+         op_ == Token::BIT_OR ||
+         op_ == Token::BIT_XOR ||
+         right_.is(ecx));
+  switch (op_) {
+    case Token::BIT_AND: __ and_(dst_, Operand(right_));  break;
+    case Token::BIT_OR:   __ or_(dst_, Operand(right_));  break;
+    case Token::BIT_XOR: __ xor_(dst_, Operand(right_));  break;
+    case Token::SHR:     __ shr_cl(dst_);  break;
+    case Token::SAR:     __ sar_cl(dst_);  break;
+    case Token::SHL:     __ shl_cl(dst_);  break;
+    default: UNREACHABLE();
+  }
+  if (op_ == Token::SHR) {
+    // Check that the *unsigned* result fits in a smi.  Neither of
+    // the two high-order bits can be set:
+    //  * 0x80000000: high bit would be lost when smi tagging.
+    //  * 0x40000000: this number would convert to negative when smi
+    //    tagging.
+    __ test(dst_, Immediate(0xc0000000));
+    __ j(not_zero, &answer_out_of_range_);
+  } else {
+    // Check that the *signed* result fits in a smi.
+    __ cmp(dst_, 0xc0000000);
+    __ j(negative, &answer_out_of_range_);
+  }
+  __ SmiTag(dst_);
+  Exit();
+}
+
+
+void DeferredInlineBinaryOperation::GenerateAnswerOutOfRange() {
+  Label after_alloc_failure2;
+  Label allocation_ok;
+  __ bind(&after_alloc_failure2);
+  // We have to allocate a number, causing a GC, while keeping hold of
+  // the answer in dst_.  The answer is not a Smi.  We can't just call the
+  // runtime shift function here because we already threw away the inputs.
+  __ xor_(left_, Operand(left_));
+  __ shl(dst_, 1);  // Put top bit in carry flag and Smi tag the low bits.
+  __ rcr(left_, 1);  // Rotate with carry.
+  __ push(dst_);   // Smi tagged low 31 bits.
+  __ push(left_);  // 0 or 0x80000000, which is Smi tagged in both cases.
+  __ CallRuntime(Runtime::kNumberAlloc, 0);
+  if (!left_.is(eax)) {
+    __ mov(left_, eax);
+  }
+  __ pop(right_);   // High bit.
+  __ pop(dst_);     // Low 31 bits.
+  __ shr(dst_, 1);  // Put 0 in top bit.
+  __ or_(dst_, Operand(right_));
+  __ jmp(&allocation_ok);
+
+  // This is the second entry point to the deferred code.  It is used only by
+  // the bit operations.
+  // The dst_ register has the answer.  It is not Smi tagged.  If mode_ is
+  // OVERWRITE_LEFT then left_ must contain either an overwritable heap number
+  // or a Smi.
+  // Put a heap number pointer in left_.
+  __ bind(&answer_out_of_range_);
+  SaveRegisters();
+  if (mode_ == OVERWRITE_LEFT) {
+    __ test(left_, Immediate(kSmiTagMask));
+    __ j(not_zero, &allocation_ok);
+  }
+  // This trashes right_.
+  __ AllocateHeapNumber(left_, right_, no_reg, &after_alloc_failure2);
+  __ bind(&allocation_ok);
+  if (CpuFeatures::IsSupported(SSE2) && op_ != Token::SHR) {
+    CpuFeatures::Scope use_sse2(SSE2);
+    ASSERT(Token::IsBitOp(op_));
+    // Signed conversion.
+    __ cvtsi2sd(xmm0, Operand(dst_));
+    __ movdbl(FieldOperand(left_, HeapNumber::kValueOffset), xmm0);
+  } else {
+    if (op_ == Token::SHR) {
+      __ push(Immediate(0));  // High word of unsigned value.
+      __ push(dst_);
+      __ fild_d(Operand(esp, 0));
+      __ Drop(2);
+    } else {
+      ASSERT(Token::IsBitOp(op_));
+      __ push(dst_);
+      __ fild_s(Operand(esp, 0));  // Signed conversion.
+      __ pop(dst_);
+    }
+    __ fstp_d(FieldOperand(left_, HeapNumber::kValueOffset));
+  }
+  __ mov(dst_, left_);
+  RestoreRegisters();
+  Exit();
 }
 
 
@@ -1499,10 +1722,25 @@ void CodeGenerator::JumpIfNotBothSmiUsingTypeInfo(Register left,
                                                   TypeInfo left_info,
                                                   TypeInfo right_info,
                                                   DeferredCode* deferred) {
+  JumpIfNotBothSmiUsingTypeInfo(left,
+                                right,
+                                scratch,
+                                left_info,
+                                right_info,
+                                deferred->entry_label());
+}
+
+
+void CodeGenerator::JumpIfNotBothSmiUsingTypeInfo(Register left,
+                                                  Register right,
+                                                  Register scratch,
+                                                  TypeInfo left_info,
+                                                  TypeInfo right_info,
+                                                  Label* on_not_smi) {
   if (left.is(right)) {
     if (!left_info.IsSmi()) {
       __ test(left, Immediate(kSmiTagMask));
-      deferred->Branch(not_zero);
+      __ j(not_zero, on_not_smi);
     } else {
       if (FLAG_debug_code) __ AbortIfNotSmi(left);
     }
@@ -1511,17 +1749,17 @@ void CodeGenerator::JumpIfNotBothSmiUsingTypeInfo(Register left,
       __ mov(scratch, left);
       __ or_(scratch, Operand(right));
       __ test(scratch, Immediate(kSmiTagMask));
-      deferred->Branch(not_zero);
+      __ j(not_zero, on_not_smi);
     } else {
       __ test(left, Immediate(kSmiTagMask));
-      deferred->Branch(not_zero);
+      __ j(not_zero, on_not_smi);
       if (FLAG_debug_code) __ AbortIfNotSmi(right);
     }
   } else {
     if (FLAG_debug_code) __ AbortIfNotSmi(left);
     if (!right_info.IsSmi()) {
       __ test(right, Immediate(kSmiTagMask));
-      deferred->Branch(not_zero);
+      __ j(not_zero, on_not_smi);
     } else {
       if (FLAG_debug_code) __ AbortIfNotSmi(right);
     }
@@ -1606,13 +1844,16 @@ Result CodeGenerator::LikelySmiBinaryOperation(BinaryOperation* expr,
     right->ToRegister();
     frame_->Spill(eax);
     frame_->Spill(edx);
+    // DeferredInlineBinaryOperation requires all the registers that it is
+    // told about to be spilled and distinct.
+    Result distinct_right = frame_->MakeDistinctAndSpilled(left, right);
 
     // Check that left and right are smi tagged.
     DeferredInlineBinaryOperation* deferred =
         new DeferredInlineBinaryOperation(op,
                                           (op == Token::DIV) ? eax : edx,
                                           left->reg(),
-                                          right->reg(),
+                                          distinct_right.reg(),
                                           left_type_info,
                                           right_type_info,
                                           overwrite_mode);
@@ -1695,15 +1936,23 @@ Result CodeGenerator::LikelySmiBinaryOperation(BinaryOperation* expr,
     left->ToRegister();
     ASSERT(left->is_register() && !left->reg().is(ecx));
     ASSERT(right->is_register() && right->reg().is(ecx));
+    if (left_type_info.IsSmi()) {
+      if (FLAG_debug_code) __ AbortIfNotSmi(left->reg());
+    }
+    if (right_type_info.IsSmi()) {
+      if (FLAG_debug_code) __ AbortIfNotSmi(right->reg());
+    }
 
     // We will modify right, it must be spilled.
     frame_->Spill(ecx);
+    // DeferredInlineBinaryOperation requires all the registers that it is told
+    // about to be spilled and distinct.  We know that right is ecx and left is
+    // not ecx.
+    frame_->Spill(left->reg());
 
     // Use a fresh answer register to avoid spilling the left operand.
     answer = allocator_->Allocate();
     ASSERT(answer.is_valid());
-    // Check that both operands are smis using the answer register as a
-    // temporary.
     DeferredInlineBinaryOperation* deferred =
         new DeferredInlineBinaryOperation(op,
                                           answer.reg(),
@@ -1712,55 +1961,28 @@ Result CodeGenerator::LikelySmiBinaryOperation(BinaryOperation* expr,
                                           left_type_info,
                                           right_type_info,
                                           overwrite_mode);
-
-    Label do_op, left_nonsmi;
-    // If right is a smi we make a fast case if left is either a smi
-    // or a heapnumber.
-    if (CpuFeatures::IsSupported(SSE2) && right_type_info.IsSmi()) {
-      CpuFeatures::Scope use_sse2(SSE2);
-      __ mov(answer.reg(), left->reg());
-      // Fast case - both are actually smis.
-      if (!left_type_info.IsSmi()) {
-        __ test(answer.reg(), Immediate(kSmiTagMask));
-        __ j(not_zero, &left_nonsmi);
-      } else {
-        if (FLAG_debug_code) __ AbortIfNotSmi(left->reg());
-      }
-      if (FLAG_debug_code) __ AbortIfNotSmi(right->reg());
-      __ SmiUntag(answer.reg());
-      __ jmp(&do_op);
-
-      __ bind(&left_nonsmi);
-      // Branch if not a heapnumber.
-      __ cmp(FieldOperand(answer.reg(), HeapObject::kMapOffset),
-             Factory::heap_number_map());
-      deferred->Branch(not_equal);
-
-      // Load integer value into answer register using truncation.
-      __ cvttsd2si(answer.reg(),
-                   FieldOperand(answer.reg(), HeapNumber::kValueOffset));
-      // Branch if we do not fit in a smi.
-      __ cmp(answer.reg(), 0xc0000000);
-      deferred->Branch(negative);
-    } else {
     JumpIfNotBothSmiUsingTypeInfo(left->reg(), right->reg(), answer.reg(),
-                                    left_type_info, right_type_info, deferred);
+                                  left_type_info, right_type_info,
+                                  deferred->NonSmiInputLabel());
 
     // Untag both operands.
     __ mov(answer.reg(), left->reg());
     __ SmiUntag(answer.reg());
-    }
+    __ SmiUntag(right->reg());  // Right is ecx.
 
-    __ bind(&do_op);
-    __ SmiUntag(ecx);
     // Perform the operation.
+    ASSERT(right->reg().is(ecx));
     switch (op) {
-      case Token::SAR:
+      case Token::SAR: {
         __ sar_cl(answer.reg());
-        // No checks of result necessary
+        if (!left_type_info.IsSmi()) {
+          // Check that the *signed* result fits in a smi.
+          __ cmp(answer.reg(), 0xc0000000);
+          deferred->JumpToAnswerOutOfRange(negative);
+        }
         break;
+      }
       case Token::SHR: {
-        Label result_ok;
         __ shr_cl(answer.reg());
         // Check that the *unsigned* result fits in a smi.  Neither of
         // the two high-order bits can be set:
@@ -1773,21 +1995,14 @@ Result CodeGenerator::LikelySmiBinaryOperation(BinaryOperation* expr,
         // case.  The low bit of the left argument may be lost, but only
         // in a case where it is dropped anyway.
         __ test(answer.reg(), Immediate(0xc0000000));
-        __ j(zero, &result_ok);
+        deferred->JumpToAnswerOutOfRange(not_zero);
-        __ SmiTag(ecx);
-        deferred->Jump();
-        __ bind(&result_ok);
         break;
       }
       case Token::SHL: {
-        Label result_ok;
         __ shl_cl(answer.reg());
         // Check that the *signed* result fits in a smi.
         __ cmp(answer.reg(), 0xc0000000);
-        __ j(positive, &result_ok);
+        deferred->JumpToAnswerOutOfRange(negative);
-        __ SmiTag(ecx);
-        deferred->Jump();
-        __ bind(&result_ok);
         break;
       }
       default:
@@ -1805,6 +2020,9 @@ Result CodeGenerator::LikelySmiBinaryOperation(BinaryOperation* expr,
   // Handle the other binary operations.
   left->ToRegister();
   right->ToRegister();
+  // DeferredInlineBinaryOperation requires all the registers that it is told
+  // about to be spilled.
+  Result distinct_right = frame_->MakeDistinctAndSpilled(left, right);
   // A newly allocated register answer is used to hold the answer.  The
   // registers containing left and right are not modified so they don't
   // need to be spilled in the fast case.
@@ -1816,12 +2034,16 @@ Result CodeGenerator::LikelySmiBinaryOperation(BinaryOperation* expr,
       new DeferredInlineBinaryOperation(op,
                                         answer.reg(),
                                         left->reg(),
-                                        right->reg(),
+                                        distinct_right.reg(),
                                         left_type_info,
                                         right_type_info,
                                         overwrite_mode);
+  Label non_smi_bit_op;
+  if (op != Token::BIT_OR) {
     JumpIfNotBothSmiUsingTypeInfo(left->reg(), right->reg(), answer.reg(),
-                                left_type_info, right_type_info, deferred);
+                                  left_type_info, right_type_info,
+                                  deferred->NonSmiInputLabel());
+  }
 
   __ mov(answer.reg(), left->reg());
   switch (op) {
@@ -1864,6 +2086,8 @@ Result CodeGenerator::LikelySmiBinaryOperation(BinaryOperation* expr,
 
     case Token::BIT_OR:
       __ or_(answer.reg(), Operand(right->reg()));
+      __ test(answer.reg(), Immediate(kSmiTagMask));
+      __ j(not_zero, deferred->NonSmiInputLabel());
       break;
 
     case Token::BIT_AND:
@@ -1878,6 +2102,7 @@ Result CodeGenerator::LikelySmiBinaryOperation(BinaryOperation* expr,
       UNREACHABLE();
       break;
   }
+
   deferred->BindExit();
   left->Unuse();
   right->Unuse();
@@ -2363,27 +2588,25 @@ Result CodeGenerator::ConstantSmiBinaryOperation(BinaryOperation* expr,
     case Token::BIT_XOR:
     case Token::BIT_AND: {
       operand->ToRegister();
+      // DeferredInlineBinaryOperation requires all the registers that it is
+      // told about to be spilled.
       frame_->Spill(operand->reg());
-      DeferredCode* deferred = NULL;
+      DeferredInlineBinaryOperation* deferred = NULL;
-      if (reversed) {
+      if (!operand->type_info().IsSmi()) {
-        deferred =
+        Result left = allocator()->Allocate();
-            new DeferredInlineSmiOperationReversed(op,
+        ASSERT(left.is_valid());
-                                                   operand->reg(),
+        Result right = allocator()->Allocate();
-                                                   smi_value,
+        ASSERT(right.is_valid());
-                                                   operand->reg(),
+        deferred = new DeferredInlineBinaryOperation(
-                                                   operand->type_info(),
+            op,
-                                                   overwrite_mode);
-      } else {
-        deferred =  new DeferredInlineSmiOperation(op,
-                                                   operand->reg(),
             operand->reg(),
+            left.reg(),
+            right.reg(),
             operand->type_info(),
-                                                   smi_value,
+            TypeInfo::Smi(),
-                                                   overwrite_mode);
+            overwrite_mode == NO_OVERWRITE ? NO_OVERWRITE : OVERWRITE_LEFT);
-      }
-      if (!operand->type_info().IsSmi()) {
         __ test(operand->reg(), Immediate(kSmiTagMask));
-        deferred->Branch(not_zero);
+        deferred->JumpToConstantRhs(not_zero, smi_value);
       } else if (FLAG_debug_code) {
         __ AbortIfNotSmi(operand->reg());
       }
@@ -2399,7 +2622,7 @@ Result CodeGenerator::ConstantSmiBinaryOperation(BinaryOperation* expr,
           __ or_(Operand(operand->reg()), Immediate(value));
         }
       }
-      deferred->BindExit();
+      if (deferred != NULL) deferred->BindExit();
       answer = *operand;
       break;
     }
@@ -3212,10 +3435,8 @@ void CodeGenerator::CallApplyLazy(Expression* applicand,
       __ j(zero, &build_args);
       __ CmpObjectType(eax, JS_FUNCTION_TYPE, ecx);
       __ j(not_equal, &build_args);
-      __ mov(ecx, FieldOperand(eax, JSFunction::kSharedFunctionInfoOffset));
       Handle<Code> apply_code(Builtins::builtin(Builtins::FunctionApply));
-      __ cmp(FieldOperand(ecx, SharedFunctionInfo::kCodeOffset),
+      __ cmp(FieldOperand(eax, JSFunction::kCodeOffset), Immediate(apply_code));
-             Immediate(apply_code));
       __ j(not_equal, &build_args);
 
       // Check that applicand is a function.
@@ -9467,6 +9688,11 @@ void FastNewClosureStub::Generate(MacroAssembler* masm) {
   __ mov(FieldOperand(eax, JSFunction::kContextOffset), esi);
   __ mov(FieldOperand(eax, JSFunction::kLiteralsOffset), ebx);
 
+  // Initialize the code pointer in the function to be the one
+  // found in the shared function info object.
+  __ mov(edx, FieldOperand(edx, SharedFunctionInfo::kCodeOffset));
+  __ mov(FieldOperand(eax, JSFunction::kCodeOffset), edx);
+
   // Return and remove the on-stack parameter.
   __ ret(1 * kPointerSize);
 

deps/v8/src/ia32/codegen-ia32.h

@@ -530,7 +530,7 @@ class CodeGenerator: public AstVisitor {
 
   // Emits code sequence that jumps to deferred code if the inputs
   // are not both smis.  Cannot be in MacroAssembler because it takes
-  // advantage of TypeInfo to skip unneeded checks.
+  // a deferred code object.
   void JumpIfNotBothSmiUsingTypeInfo(Register left,
                                      Register right,
                                      Register scratch,
@@ -538,6 +538,15 @@ class CodeGenerator: public AstVisitor {
                                      TypeInfo right_info,
                                      DeferredCode* deferred);
 
+  // Emits code sequence that jumps to the label if the inputs
+  // are not both smis.
+  void JumpIfNotBothSmiUsingTypeInfo(Register left,
+                                     Register right,
+                                     Register scratch,
+                                     TypeInfo left_info,
+                                     TypeInfo right_info,
+                                     Label* on_non_smi);
+
   // If possible, combine two constant smi values using op to produce
   // a smi result, and push it on the virtual frame, all at compile time.
   // Returns true if it succeeds.  Otherwise it has no effect.

deps/v8/src/ia32/macro-assembler-ia32.cc

@@ -377,6 +377,12 @@ void MacroAssembler::AbortIfNotSmi(Register object) {
 }
 
 
+void MacroAssembler::AbortIfSmi(Register object) {
+  test(object, Immediate(kSmiTagMask));
+  Assert(not_equal, "Operand a smi");
+}
+
+
 void MacroAssembler::EnterFrame(StackFrame::Type type) {
   push(ebp);
   mov(ebp, Operand(esp));
@@ -1292,7 +1298,7 @@ void MacroAssembler::InvokeFunction(Register fun,
   mov(esi, FieldOperand(edi, JSFunction::kContextOffset));
   mov(ebx, FieldOperand(edx, SharedFunctionInfo::kFormalParameterCountOffset));
   SmiUntag(ebx);
-  mov(edx, FieldOperand(edx, SharedFunctionInfo::kCodeOffset));
+  mov(edx, FieldOperand(edi, JSFunction::kCodeOffset));
   lea(edx, FieldOperand(edx, Code::kHeaderSize));
 
   ParameterCount expected(ebx);
@@ -1344,8 +1350,7 @@ void MacroAssembler::GetBuiltinEntry(Register target, Builtins::JavaScript id) {
     // Make sure the code objects in the builtins object and in the
     // builtin function are the same.
     push(target);
-    mov(target, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
+    mov(target, FieldOperand(edi, JSFunction::kCodeOffset));
-    mov(target, FieldOperand(target, SharedFunctionInfo::kCodeOffset));
     cmp(target, Operand(esp, 0));
     Assert(equal, "Builtin code object changed");
     pop(target);
@@ -1510,6 +1515,61 @@ void MacroAssembler::Abort(const char* msg) {
 }
 
 
+void MacroAssembler::JumpIfNotNumber(Register reg,
+                                     TypeInfo info,
+                                     Label* on_not_number) {
+  if (FLAG_debug_code) AbortIfSmi(reg);
+  if (!info.IsNumber()) {
+    cmp(FieldOperand(reg, HeapObject::kMapOffset),
+        Factory::heap_number_map());
+    j(not_equal, on_not_number);
+  }
+}
+
+
+void MacroAssembler::ConvertToInt32(Register dst,
+                                    Register source,
+                                    Register scratch,
+                                    TypeInfo info,
+                                    Label* on_not_int32) {
+  if (FLAG_debug_code) {
+    AbortIfSmi(source);
+    AbortIfNotNumber(source);
+  }
+  if (info.IsInteger32()) {
+    cvttsd2si(dst, FieldOperand(source, HeapNumber::kValueOffset));
+  } else {
+    Label done;
+    bool push_pop = (scratch.is(no_reg) && dst.is(source));
+    ASSERT(!scratch.is(source));
+    if (push_pop) {
+      push(dst);
+      scratch = dst;
+    }
+    if (scratch.is(no_reg)) scratch = dst;
+    cvttsd2si(scratch, FieldOperand(source, HeapNumber::kValueOffset));
+    cmp(scratch, 0x80000000u);
+    if (push_pop || dst.is(source)) {
+      j(not_equal, &done);
+      if (push_pop) {
+        pop(dst);
+        jmp(on_not_int32);
+      }
+    } else {
+      j(equal, on_not_int32);
+    }
+
+    bind(&done);
+    if (push_pop) {
+      add(Operand(esp), Immediate(kPointerSize));  // Pop.
+    }
+    if (!scratch.is(dst)) {
+      mov(dst, scratch);
+    }
+  }
+}
+
+
 void MacroAssembler::JumpIfInstanceTypeIsNotSequentialAscii(
     Register instance_type,
     Register scratch,

deps/v8/src/ia32/macro-assembler-ia32.h

@@ -29,6 +29,7 @@
 #define V8_IA32_MACRO_ASSEMBLER_IA32_H_
 
 #include "assembler.h"
+#include "type-info.h"
 
 namespace v8 {
 namespace internal {
@@ -225,12 +226,44 @@ class MacroAssembler: public Assembler {
     sar(reg, kSmiTagSize);
   }
 
+  // Modifies the register even if it does not contain a Smi!
+  void SmiUntag(Register reg, TypeInfo info, Label* non_smi) {
+    ASSERT(kSmiTagSize == 1);
+    sar(reg, kSmiTagSize);
+    if (info.IsSmi()) {
+      ASSERT(kSmiTag == 0);
+      j(carry, non_smi);
+    }
+  }
+
+  // Modifies the register even if it does not contain a Smi!
+  void SmiUntag(Register reg, Label* is_smi) {
+    ASSERT(kSmiTagSize == 1);
+    sar(reg, kSmiTagSize);
+    ASSERT(kSmiTag == 0);
+    j(not_carry, is_smi);
+  }
+
+  // Assumes input is a heap object.
+  void JumpIfNotNumber(Register reg, TypeInfo info, Label* on_not_number);
+
+  // Assumes input is a heap number.  Jumps on things out of range.  Also jumps
+  // on the min negative int32.  Ignores frational parts.
+  void ConvertToInt32(Register dst,
+                      Register src,      // Can be the same as dst.
+                      Register scratch,  // Can be no_reg or dst, but not src.
+                      TypeInfo info,
+                      Label* on_not_int32);
+
   // Abort execution if argument is not a number. Used in debug code.
   void AbortIfNotNumber(Register object);
 
   // Abort execution if argument is not a smi. Used in debug code.
   void AbortIfNotSmi(Register object);
 
+  // Abort execution if argument is a smi. Used in debug code.
+  void AbortIfSmi(Register object);
+
   // ---------------------------------------------------------------------------
   // Exception handling
 

deps/v8/src/ia32/virtual-frame-ia32.h

@@ -139,6 +139,22 @@ class VirtualFrame: public ZoneObject {
     if (is_used(reg)) SpillElementAt(register_location(reg));
   }
 
+  // Make the two registers distinct and spill them.  Returns the second
+  // register.  If the registers were not distinct then it returns the new
+  // second register.
+  Result MakeDistinctAndSpilled(Result* left, Result* right) {
+    Spill(left->reg());
+    Spill(right->reg());
+    if (left->reg().is(right->reg())) {
+      RegisterAllocator* allocator = cgen()->allocator();
+      Result fresh = allocator->Allocate();
+      ASSERT(fresh.is_valid());
+      masm()->mov(fresh.reg(), right->reg());
+      return fresh;
+    }
+    return *right;
+  }
+
   // Spill all occurrences of an arbitrary register if possible.  Return the
   // register spilled or no_reg if it was not possible to free any register
   // (ie, they all have frame-external references).

deps/v8/src/list-inl.h

@@ -126,6 +126,13 @@ void List<T, P>::Iterate(void (*callback)(T* x)) {
 }
 
 
+template<typename T, class P>
+template<class Visitor>
+void List<T, P>::Iterate(Visitor* visitor) {
+  for (int i = 0; i < length_; i++) visitor->Apply(&data_[i]);
+}
+
+
 template<typename T, class P>
 bool List<T, P>::Contains(const T& elm) {
   for (int i = 0; i < length_; i++) {

deps/v8/src/list.h

@@ -117,6 +117,8 @@ class List {
 
   // Iterate through all list entries, starting at index 0.
   void Iterate(void (*callback)(T* x));
+  template<class Visitor>
+  void Iterate(Visitor* visitor);
 
   // Sort all list entries (using QuickSort)
   void Sort(int (*cmp)(const T* x, const T* y));

deps/v8/src/mips/simulator-mips.cc

@@ -606,7 +606,7 @@ void Simulator::set_fpu_register(int fpureg, int32_t value) {
 
 void Simulator::set_fpu_register_double(int fpureg, double value) {
   ASSERT((fpureg >= 0) && (fpureg < kNumFPURegisters) && ((fpureg % 2) == 0));
-  *v8i::BitCast<double*, int32_t*>(&FPUregisters_[fpureg]) = value;
+  *v8i::BitCast<double*>(&FPUregisters_[fpureg]) = value;
 }
 
 
@@ -627,8 +627,7 @@ int32_t Simulator::get_fpu_register(int fpureg) const {
 
 double Simulator::get_fpu_register_double(int fpureg) const {
   ASSERT((fpureg >= 0) && (fpureg < kNumFPURegisters) && ((fpureg % 2) == 0));
-  return *v8i::BitCast<double*, int32_t*>(
+  return *v8i::BitCast<double*>(const_cast<int32_t*>(&FPUregisters_[fpureg]));
-      const_cast<int32_t*>(&FPUregisters_[fpureg]));
 }
 
 // Raw access to the PC register.
@@ -903,7 +902,7 @@ void Simulator::DecodeTypeRegister(Instruction* instr) {
           break;
         case MFHC1:
           fp_out = get_fpu_register_double(fs_reg);
-          alu_out = *v8i::BitCast<int32_t*, double*>(&fp_out);
+          alu_out = *v8i::BitCast<int32_t*>(&fp_out);
           break;
         case MTC1:
         case MTHC1:

deps/v8/src/objects-inl.h

@@ -2694,12 +2694,14 @@ bool JSFunction::IsBuiltin() {
 
 
 Code* JSFunction::code() {
-  return shared()->code();
+  return Code::cast(READ_FIELD(this, kCodeOffset));
 }
 
 
 void JSFunction::set_code(Code* value) {
-  shared()->set_code(value);
+  // Skip the write barrier because code is never in new space.
+  ASSERT(!Heap::InNewSpace(value));
+  WRITE_FIELD(this, kCodeOffset, value);
 }
 
 
@@ -2771,7 +2773,7 @@ bool JSFunction::should_have_prototype() {
 
 
 bool JSFunction::is_compiled() {
-  return shared()->is_compiled();
+  return code()->kind() != Code::STUB;
 }
 
 

deps/v8/src/objects.cc

@@ -5823,16 +5823,24 @@ bool JSObject::HasElementWithInterceptor(JSObject* receiver, uint32_t index) {
   CustomArguments args(interceptor->data(), receiver, this);
   v8::AccessorInfo info(args.end());
   if (!interceptor->query()->IsUndefined()) {
-    v8::IndexedPropertyQuery query =
+    v8::IndexedPropertyQueryImpl query =
-        v8::ToCData<v8::IndexedPropertyQuery>(interceptor->query());
+        v8::ToCData<v8::IndexedPropertyQueryImpl>(interceptor->query());
     LOG(ApiIndexedPropertyAccess("interceptor-indexed-has", this, index));
-    v8::Handle<v8::Boolean> result;
+    v8::Handle<v8::Value> result;
     {
       // Leaving JavaScript.
       VMState state(EXTERNAL);
       result = query(index, info);
     }
-    if (!result.IsEmpty()) return result->IsTrue();
+    if (!result.IsEmpty()) {
+      // IsBoolean check would be removed when transition to new API is over.
+      if (result->IsBoolean()) {
+        return result->IsTrue() ? true : false;
+      } else {
+        ASSERT(result->IsInt32());
+        return true;  // absence of property is signaled by empty handle.
+      }
+    }
   } else if (!interceptor->getter()->IsUndefined()) {
     v8::IndexedPropertyGetter getter =
         v8::ToCData<v8::IndexedPropertyGetter>(interceptor->getter());

deps/v8/src/objects.h

@@ -3608,7 +3608,9 @@ class JSFunction: public JSObject {
   static Context* GlobalContextFromLiterals(FixedArray* literals);
 
   // Layout descriptors.
-  static const int kPrototypeOrInitialMapOffset = JSObject::kHeaderSize;
+  static const int kCodeOffset = JSObject::kHeaderSize;
+  static const int kPrototypeOrInitialMapOffset =
+      kCodeOffset + kPointerSize;
   static const int kSharedFunctionInfoOffset =
       kPrototypeOrInitialMapOffset + kPointerSize;
   static const int kContextOffset = kSharedFunctionInfoOffset + kPointerSize;

deps/v8/src/parser.cc

@@ -3587,10 +3587,8 @@ ObjectLiteral::Property* Parser::ParseObjectLiteralGetSet(bool is_getter,
   // { ... , get foo() { ... }, ... , set foo(v) { ... v ... } , ... }
   // We have already read the "get" or "set" keyword.
   Token::Value next = Next();
-  if (next == Token::IDENTIFIER ||
+  // TODO(820): Allow NUMBER and STRING as well (and handle array indices).
-      next == Token::STRING ||
+  if (next == Token::IDENTIFIER || Token::IsKeyword(next)) {
-      next == Token::NUMBER ||
-      Token::IsKeyword(next)) {
     Handle<String> name =
         factory()->LookupSymbol(scanner_.literal_string(),
                                 scanner_.literal_length());
@@ -3652,8 +3650,7 @@ Expression* Parser::ParseObjectLiteral(bool* ok) {
             factory()->LookupSymbol(scanner_.literal_string(),
                                     scanner_.literal_length());
         uint32_t index;
-        if (!string.is_null() &&
+        if (!string.is_null() && string->AsArrayIndex(&index)) {
-            string->AsArrayIndex(&index)) {
           key = NewNumberLiteral(index);
           break;
         }

deps/v8/src/profile-generator-inl.h

@@ -97,13 +97,6 @@ void CodeMap::DeleteCode(Address addr) {
 }
 
 
-bool CpuProfilesCollection::is_last_profile() {
-  // Called from VM thread, and only it can mutate the list,
-  // so no locking is needed here.
-  return current_profiles_.length() == 1;
-}
-
-
 const char* CpuProfilesCollection::GetFunctionName(String* name) {
   return GetFunctionName(GetName(name));
 }
@@ -130,17 +123,6 @@ CodeEntry* ProfileGenerator::EntryForVMState(StateTag tag) {
   }
 }
 
-
-template<class Visitor>
-void HeapEntriesMap::Apply(Visitor* visitor) {
-  for (HashMap::Entry* p = entries_.Start();
-       p != NULL;
-       p = entries_.Next(p)) {
-    if (!IsAlias(p->value))
-      visitor->Apply(reinterpret_cast<HeapEntry*>(p->value));
-  }
-}
-
 } }  // namespace v8::internal
 
 #endif  // ENABLE_LOGGING_AND_PROFILING

deps/v8/src/profile-generator.h

@@ -279,15 +279,12 @@ class CpuProfilesCollection {
   CpuProfile* StopProfiling(int security_token_id,
                             const char* title,
                             double actual_sampling_rate);
-  CpuProfile* StopProfiling(int security_token_id,
-                            String* title,
-                            double actual_sampling_rate);
   List<CpuProfile*>* Profiles(int security_token_id);
   const char* GetName(String* name) {
     return function_and_resource_names_.GetName(name);
   }
   CpuProfile* GetProfile(int security_token_id, unsigned uid);
-  inline bool is_last_profile();
+  bool IsLastProfile(const char* title);
 
   CodeEntry* NewCodeEntry(Logger::LogEventsAndTags tag,
                           String* name, String* resource_name, int line_number);
@@ -423,167 +420,194 @@ class ProfileGenerator {
 };
 
 
-class HeapSnapshot;
 class HeapEntry;
 
-
+class HeapGraphEdge BASE_EMBEDDED {
-class HeapGraphEdge {
  public:
   enum Type {
-    CONTEXT_VARIABLE = v8::HeapGraphEdge::CONTEXT_VARIABLE,
+    kContextVariable = v8::HeapGraphEdge::kContextVariable,
-    ELEMENT = v8::HeapGraphEdge::ELEMENT,
+    kElement = v8::HeapGraphEdge::kElement,
-    PROPERTY = v8::HeapGraphEdge::PROPERTY,
+    kProperty = v8::HeapGraphEdge::kProperty,
-    INTERNAL = v8::HeapGraphEdge::INTERNAL
+    kInternal = v8::HeapGraphEdge::kInternal
   };
 
-  HeapGraphEdge(Type type, const char* name, HeapEntry* from, HeapEntry* to);
+  HeapGraphEdge() { }
-  HeapGraphEdge(int index, HeapEntry* from, HeapEntry* to);
+  void Init(int child_index, Type type, const char* name, HeapEntry* to);
+  void Init(int child_index, int index, HeapEntry* to);
 
-  Type type() const { return type_; }
+  Type type() { return static_cast<Type>(type_); }
-  int index() const {
+  int index() {
-    ASSERT(type_ == ELEMENT);
+    ASSERT(type_ == kElement);
     return index_;
   }
-  const char* name() const {
+  const char* name() {
-    ASSERT(type_ == CONTEXT_VARIABLE || type_ == PROPERTY || type_ == INTERNAL);
+    ASSERT(type_ == kContextVariable
+           || type_ == kProperty
+           || type_ == kInternal);
     return name_;
   }
-  HeapEntry* from() const { return from_; }
+  HeapEntry* to() { return to_; }
-  HeapEntry* to() const { return to_; }
+
+  HeapEntry* From();
 
  private:
-  Type type_;
+  int child_index_ : 30;
+  unsigned type_ : 2;
   union {
     int index_;
     const char* name_;
   };
-  HeapEntry* from_;
   HeapEntry* to_;
 
   DISALLOW_COPY_AND_ASSIGN(HeapGraphEdge);
 };
 
 
-class HeapGraphPath;
 class CachedHeapGraphPath;
+class HeapGraphPath;
+class HeapSnapshot;
 
-class HeapEntry {
+// HeapEntry instances represent an entity from the heap (or a special
+// virtual node, e.g. root). To make heap snapshots more compact,
+// HeapEntries has a special memory layout (no Vectors or Lists used):
+//
+//   +-----------------+
+//        HeapEntry
+//   +-----------------+
+//      HeapGraphEdge    |
+//           ...         } children_count
+//      HeapGraphEdge    |
+//   +-----------------+
+//      HeapGraphEdge*   |
+//           ...         } retainers_count
+//      HeapGraphEdge*   |
+//   +-----------------+
+//
+// In a HeapSnapshot, all entries are hand-allocated in a continuous array
+// of raw bytes.
+//
+class HeapEntry BASE_EMBEDDED {
  public:
   enum Type {
-    INTERNAL = v8::HeapGraphNode::INTERNAL,
+    kInternal = v8::HeapGraphNode::kInternal,
-    ARRAY = v8::HeapGraphNode::ARRAY,
+    kArray = v8::HeapGraphNode::kArray,
-    STRING = v8::HeapGraphNode::STRING,
+    kString = v8::HeapGraphNode::kString,
-    OBJECT = v8::HeapGraphNode::OBJECT,
+    kObject = v8::HeapGraphNode::kObject,
-    CODE = v8::HeapGraphNode::CODE,
+    kCode = v8::HeapGraphNode::kCode,
-    CLOSURE = v8::HeapGraphNode::CLOSURE
+    kClosure = v8::HeapGraphNode::kClosure
   };
 
-  explicit HeapEntry(HeapSnapshot* snapshot)
+  HeapEntry() { }
-      : snapshot_(snapshot),
+  void Init(HeapSnapshot* snapshot, int children_count, int retainers_count);
-        visited_(false),
+  void Init(HeapSnapshot* snapshot,
-        type_(INTERNAL),
-        name_(""),
-        id_(0),
-        next_auto_index_(0),
-        self_size_(0),
-        security_token_id_(TokenEnumerator::kNoSecurityToken),
-        children_(1),
-        retainers_(0),
-        retaining_paths_(0),
-        total_size_(kUnknownSize),
-        non_shared_total_size_(kUnknownSize),
-        painted_(kUnpainted) { }
-  HeapEntry(HeapSnapshot* snapshot,
             Type type,
             const char* name,
             uint64_t id,
             int self_size,
-            int security_token_id)
+            int children_count,
-      : snapshot_(snapshot),
+            int retainers_count);
-        visited_(false),
+
-        type_(type),
+  HeapSnapshot* snapshot() { return snapshot_; }
-        name_(name),
+  Type type() { return static_cast<Type>(type_); }
-        id_(id),
+  const char* name() { return name_; }
-        next_auto_index_(1),
+  uint64_t id() { return id_; }
-        self_size_(self_size),
+  int self_size() { return self_size_; }
-        security_token_id_(security_token_id),
+
-        children_(4),
+  Vector<HeapGraphEdge> children() {
-        retainers_(4),
+    return Vector<HeapGraphEdge>(children_arr(), children_count_); }
-        retaining_paths_(4),
+  Vector<HeapGraphEdge*> retainers() {
-        total_size_(kUnknownSize),
+    return Vector<HeapGraphEdge*>(retainers_arr(), retainers_count_); }
-        non_shared_total_size_(kUnknownSize),
+  List<HeapGraphPath*>* GetRetainingPaths();
-        painted_(kUnpainted) { }
+
-  ~HeapEntry();
+  void clear_paint() { painted_ = kUnpainted; }
-
+  bool painted_reachable() { return painted_ == kPainted; }
-  bool visited() const { return visited_; }
+  void paint_reachable() {
-  Type type() const { return type_; }
+    ASSERT(painted_ == kUnpainted);
-  const char* name() const { return name_; }
+    painted_ = kPainted;
-  uint64_t id() const { return id_; }
+  }
-  int self_size() const { return self_size_; }
-  int security_token_id() const { return security_token_id_; }
-  bool painted_reachable() { return painted_ == kPaintReachable; }
   bool not_painted_reachable_from_others() {
-    return painted_ != kPaintReachableFromOthers;
+    return painted_ != kPaintedReachableFromOthers;
+  }
+  void paint_reachable_from_others() {
+    painted_ = kPaintedReachableFromOthers;
   }
-  const List<HeapGraphEdge*>* children() const { return &children_; }
-  const List<HeapGraphEdge*>* retainers() const { return &retainers_; }
-  const List<HeapGraphPath*>* GetRetainingPaths();
-
   template<class Visitor>
   void ApplyAndPaintAllReachable(Visitor* visitor);
-
-  void ClearPaint() { painted_ = kUnpainted; }
-  void CutEdges();
-  void MarkAsVisited() { visited_ = true; }
   void PaintAllReachable();
-  void PaintReachable() {
-    ASSERT(painted_ == kUnpainted);
-    painted_ = kPaintReachable;
-  }
-  void PaintReachableFromOthers() { painted_ = kPaintReachableFromOthers; }
-  void SetClosureReference(const char* name, HeapEntry* entry);
-  void SetElementReference(int index, HeapEntry* entry);
-  void SetInternalReference(const char* name, HeapEntry* entry);
-  void SetPropertyReference(const char* name, HeapEntry* entry);
-  void SetAutoIndexReference(HeapEntry* entry);
-  void SetUnidirAutoIndexReference(HeapEntry* entry);
 
-  int TotalSize();
+  void SetElementReference(
-  int NonSharedTotalSize();
+      int child_index, int index, HeapEntry* entry, int retainer_index);
+  void SetNamedReference(HeapGraphEdge::Type type,
+                         int child_index,
+                         const char* name,
+                         HeapEntry* entry,
+                         int retainer_index);
+  void SetUnidirElementReference(int child_index, int index, HeapEntry* entry);
+
+  int EntrySize() { return EntriesSize(1, children_count_, retainers_count_); }
+  int ReachableSize();
+  int RetainedSize();
 
   void Print(int max_depth, int indent);
 
- private:
+  static int EntriesSize(int entries_count,
-  void AddEdge(HeapGraphEdge* edge);
+                         int children_count,
-  int CalculateTotalSize();
+                         int retainers_count);
-  int CalculateNonSharedTotalSize();
-  void FindRetainingPaths(HeapEntry* node, CachedHeapGraphPath* prev_path);
-  void RemoveChild(HeapGraphEdge* edge);
-  void RemoveRetainer(HeapGraphEdge* edge);
 
+ private:
+  HeapGraphEdge* children_arr() {
+    return reinterpret_cast<HeapGraphEdge*>(this + 1);
+  }
+  HeapGraphEdge** retainers_arr() {
+    return reinterpret_cast<HeapGraphEdge**>(children_arr() + children_count_);
+  }
   const char* TypeAsString();
 
+  unsigned painted_: 2;
+  unsigned type_: 3;
+  // The calculated data is stored in HeapSnapshot in HeapEntryCalculatedData
+  // entries. See AddCalculatedData and GetCalculatedData.
+  int calculated_data_index_: 27;
+  int self_size_;
+  int children_count_;
+  int retainers_count_;
   HeapSnapshot* snapshot_;
-  bool visited_;
-  Type type_;
   const char* name_;
   uint64_t id_;
-  int next_auto_index_;
+
-  int self_size_;
+  static const unsigned kUnpainted = 0;
-  int security_token_id_;
+  static const unsigned kPainted = 1;
-  List<HeapGraphEdge*> children_;
+  static const unsigned kPaintedReachableFromOthers = 2;
-  List<HeapGraphEdge*> retainers_;
+  static const int kNoCalculatedData = -1;
-  List<HeapGraphPath*> retaining_paths_;
+
-  int total_size_;
+  DISALLOW_COPY_AND_ASSIGN(HeapEntry);
-  int non_shared_total_size_;
+};
-  int painted_;
+
+
+class HeapEntryCalculatedData {
+ public:
+  HeapEntryCalculatedData()
+      : retaining_paths_(NULL),
+        reachable_size_(kUnknownSize),
+        retained_size_(kUnknownSize) {
+  }
+  void Dispose();
+
+  List<HeapGraphPath*>* GetRetainingPaths(HeapEntry* entry);
+  int ReachableSize(HeapEntry* entry);
+  int RetainedSize(HeapEntry* entry);
+
+ private:
+  void CalculateSizes(HeapEntry* entry);
+  void FindRetainingPaths(HeapEntry* entry, CachedHeapGraphPath* prev_path);
+
+  List<HeapGraphPath*>* retaining_paths_;
+  int reachable_size_;
+  int retained_size_;
 
   static const int kUnknownSize = -1;
-  static const int kUnpainted = 0;
-  static const int kPaintReachable = 1;
-  static const int kPaintReachableFromOthers = 2;
 
-  DISALLOW_IMPLICIT_CONSTRUCTORS(HeapEntry);
+  // Allow generated copy constructor and assignment operator.
 };
 
 
@@ -595,7 +619,7 @@ class HeapGraphPath {
 
   void Add(HeapGraphEdge* edge) { path_.Add(edge); }
   void Set(int index, HeapGraphEdge* edge) { path_[index] = edge; }
-  const List<HeapGraphEdge*>* path() const { return &path_; }
+  const List<HeapGraphEdge*>* path() { return &path_; }
 
   void Print();
 
@@ -606,39 +630,6 @@ class HeapGraphPath {
 };
 
 
-class HeapEntriesMap {
- public:
-  HeapEntriesMap();
-  ~HeapEntriesMap();
-
-  void Alias(HeapObject* object, HeapEntry* entry);
-  void Apply(void (HeapEntry::*Func)(void));
-  template<class Visitor>
-  void Apply(Visitor* visitor);
-  HeapEntry* Map(HeapObject* object);
-  void Pair(HeapObject* object, HeapEntry* entry);
-
-  uint32_t capacity() { return entries_.capacity(); }
-
- private:
-  INLINE(uint32_t Hash(HeapObject* object)) {
-    return static_cast<uint32_t>(reinterpret_cast<intptr_t>(object));
-  }
-  INLINE(static bool HeapObjectsMatch(void* key1, void* key2)) {
-    return key1 == key2;
-  }
-  INLINE(bool IsAlias(void* ptr)) {
-    return reinterpret_cast<intptr_t>(ptr) & kAliasTag;
-  }
-
-  static const intptr_t kAliasTag = 1;
-
-  HashMap entries_;
-
-  DISALLOW_COPY_AND_ASSIGN(HeapEntriesMap);
-};
-
-
 class HeapSnapshotsCollection;
 class HeapSnapshotsDiff;
 
@@ -653,53 +644,52 @@ class HeapSnapshot {
                const char* title,
                unsigned uid);
   ~HeapSnapshot();
-  void ClearPaint();
-  void CutObjectsFromForeignSecurityContexts();
-  HeapEntry* GetEntry(Object* object);
-  void SetClosureReference(
-      HeapEntry* parent, String* reference_name, Object* child);
-  void SetElementReference(HeapEntry* parent, int index, Object* child);
-  void SetInternalReference(
-      HeapEntry* parent, const char* reference_name, Object* child);
-  void SetPropertyReference(
-      HeapEntry* parent, String* reference_name, Object* child);
 
-  INLINE(const char* title() const) { return title_; }
+  HeapSnapshotsCollection* collection() { return collection_; }
-  INLINE(unsigned uid() const) { return uid_; }
+  const char* title() { return title_; }
-  const HeapEntry* const_root() const { return &root_; }
+  unsigned uid() { return uid_; }
-  HeapEntry* root() { return &root_; }
+  HeapEntry* root() { return entries_[root_entry_index_]; }
-  template<class Visitor>
+
-  void IterateEntries(Visitor* visitor) { entries_.Apply(visitor); }
+  void AllocateEntries(
-  List<HeapEntry*>* GetSortedEntriesList();
+      int entries_count, int children_count, int retainers_count);
+  HeapEntry* AddEntry(
+      HeapObject* object, int children_count, int retainers_count);
+  bool WillAddEntry(HeapObject* object);
+  int AddCalculatedData();
+  HeapEntryCalculatedData& GetCalculatedData(int index) {
+    return calculated_data_[index];
+  }
+  void ClearPaint();
   HeapSnapshotsDiff* CompareWith(HeapSnapshot* snapshot);
+  List<HeapEntry*>* GetSortedEntriesList();
+  template<class Visitor>
+  void IterateEntries(Visitor* visitor) { entries_.Iterate(visitor); }
 
   void Print(int max_depth);
+  void PrintEntriesSize();
+
+  static HeapObject *const kInternalRootObject;
 
  private:
-  HeapEntry* AddEntry(HeapObject* object, HeapEntry::Type type) {
+  HeapEntry* AddEntry(HeapObject* object,
-    return AddEntry(object, type, "");
+                      HeapEntry::Type type,
-  }
+                      const char* name,
-  HeapEntry* AddEntry(
+                      int children_count,
-      HeapObject* object, HeapEntry::Type type, const char* name);
+                      int retainers_count);
-  void AddEntryAlias(HeapObject* object, HeapEntry* entry) {
+  HeapEntry* GetNextEntryToInit();
-    entries_.Alias(object, entry);
-  }
-  HeapEntry* FindEntry(HeapObject* object) {
-    return entries_.Map(object);
-  }
-  int GetGlobalSecurityToken();
-  int GetObjectSecurityToken(HeapObject* obj);
   static int GetObjectSize(HeapObject* obj);
   static int CalculateNetworkSize(JSObject* obj);
 
   HeapSnapshotsCollection* collection_;
   const char* title_;
   unsigned uid_;
-  HeapEntry root_;
+  int root_entry_index_;
-  // Mapping from HeapObject* pointers to HeapEntry* pointers.
+  char* raw_entries_;
-  HeapEntriesMap entries_;
+  List<HeapEntry*> entries_;
-  // Entries sorted by id.
+  bool entries_sorted_;
-  List<HeapEntry*>* sorted_entries_;
+  List<HeapEntryCalculatedData> calculated_data_;
+
+  friend class HeapSnapshotTester;
 
   DISALLOW_COPY_AND_ASSIGN(HeapSnapshot);
 };
@@ -748,30 +738,36 @@ class HeapSnapshotsDiff {
   HeapSnapshotsDiff(HeapSnapshot* snapshot1, HeapSnapshot* snapshot2)
       : snapshot1_(snapshot1),
         snapshot2_(snapshot2),
-        additions_root_(new HeapEntry(snapshot2)),
+        raw_additions_root_(NULL),
-        deletions_root_(new HeapEntry(snapshot1)) { }
+        raw_deletions_root_(NULL) { }
 
   ~HeapSnapshotsDiff() {
-    delete deletions_root_;
+    DeleteArray(raw_deletions_root_);
-    delete additions_root_;
+    DeleteArray(raw_additions_root_);
   }
 
-  void AddAddedEntry(HeapEntry* entry) {
+  void AddAddedEntry(int child_index, int index, HeapEntry* entry) {
-    additions_root_->SetUnidirAutoIndexReference(entry);
+    additions_root()->SetUnidirElementReference(child_index, index, entry);
   }
 
-  void AddDeletedEntry(HeapEntry* entry) {
+  void AddDeletedEntry(int child_index, int index, HeapEntry* entry) {
-    deletions_root_->SetUnidirAutoIndexReference(entry);
+    deletions_root()->SetUnidirElementReference(child_index, index, entry);
   }
 
-  const HeapEntry* additions_root() const { return additions_root_; }
+  void CreateRoots(int additions_count, int deletions_count);
-  const HeapEntry* deletions_root() const { return deletions_root_; }
+
+  HeapEntry* additions_root() {
+    return reinterpret_cast<HeapEntry*>(raw_additions_root_);
+  }
+  HeapEntry* deletions_root() {
+    return reinterpret_cast<HeapEntry*>(raw_deletions_root_);
+  }
 
  private:
   HeapSnapshot* snapshot1_;
   HeapSnapshot* snapshot2_;
-  HeapEntry* additions_root_;
+  char* raw_additions_root_;
-  HeapEntry* deletions_root_;
+  char* raw_deletions_root_;
 
   DISALLOW_COPY_AND_ASSIGN(HeapSnapshotsDiff);
 };
@@ -830,18 +826,123 @@ class HeapSnapshotsCollection {
 };
 
 
+// The HeapEntriesMap instance is used to track a mapping between
+// real heap objects and their representations in heap snapshots.
+class HeapEntriesMap {
+ public:
+  HeapEntriesMap();
+  ~HeapEntriesMap();
+
+  // Aliasing is used for skipping intermediate proxy objects, like
+  // JSGlobalPropertyCell.
+  void Alias(HeapObject* from, HeapObject* to);
+  HeapEntry* Map(HeapObject* object);
+  void Pair(HeapObject* object, HeapEntry* entry);
+  void CountReference(HeapObject* from, HeapObject* to,
+                      int* prev_children_count = NULL,
+                      int* prev_retainers_count = NULL);
+  template<class Visitor>
+  void UpdateEntries(Visitor* visitor);
+
+  int entries_count() { return entries_count_; }
+  int total_children_count() { return total_children_count_; }
+  int total_retainers_count() { return total_retainers_count_; }
+
+ private:
+  struct EntryInfo {
+    explicit EntryInfo(HeapEntry* entry)
+        : entry(entry), children_count(0), retainers_count(0) { }
+    HeapEntry* entry;
+    int children_count;
+    int retainers_count;
+  };
+
+  uint32_t Hash(HeapObject* object) {
+    return static_cast<uint32_t>(reinterpret_cast<intptr_t>(object));
+  }
+  static bool HeapObjectsMatch(void* key1, void* key2) { return key1 == key2; }
+
+  bool IsAlias(void* ptr) {
+    return reinterpret_cast<intptr_t>(ptr) & kAliasTag;
+  }
+  void* MakeAlias(void* ptr) {
+    return reinterpret_cast<void*>(reinterpret_cast<intptr_t>(ptr) | kAliasTag);
+  }
+  void* Unalias(void* ptr) {
+    return reinterpret_cast<void*>(
+        reinterpret_cast<intptr_t>(ptr) & (~kAliasTag));
+  }
+
+  HashMap entries_;
+  int entries_count_;
+  int total_children_count_;
+  int total_retainers_count_;
+
+  static const intptr_t kAliasTag = 1;
+
+  DISALLOW_COPY_AND_ASSIGN(HeapEntriesMap);
+};
+
+
 class HeapSnapshotGenerator {
  public:
+  class SnapshotFillerInterface {
+   public:
+    virtual ~SnapshotFillerInterface() { }
+    virtual HeapEntry* AddEntry(HeapObject* obj) = 0;
+    virtual void SetElementReference(HeapObject* parent_obj,
+                                     HeapEntry* parent_entry,
+                                     int index,
+                                     Object* child_obj,
+                                     HeapEntry* child_entry) = 0;
+    virtual void SetNamedReference(HeapGraphEdge::Type type,
+                                   HeapObject* parent_obj,
+                                   HeapEntry* parent_entry,
+                                   const char* reference_name,
+                                   Object* child_obj,
+                                   HeapEntry* child_entry) = 0;
+    virtual void SetRootReference(Object* child_obj,
+                                  HeapEntry* child_entry) = 0;
+
+    static HeapEntry *const kHeapEntryPlaceholder;
+  };
+
   explicit HeapSnapshotGenerator(HeapSnapshot* snapshot);
   void GenerateSnapshot();
 
  private:
+  HeapEntry* GetEntry(Object* obj);
+  int GetGlobalSecurityToken();
+  int GetObjectSecurityToken(HeapObject* obj);
   void ExtractReferences(HeapObject* obj);
   void ExtractClosureReferences(JSObject* js_obj, HeapEntry* entry);
   void ExtractPropertyReferences(JSObject* js_obj, HeapEntry* entry);
   void ExtractElementReferences(JSObject* js_obj, HeapEntry* entry);
+  void SetClosureReference(HeapObject* parent_obj,
+                           HeapEntry* parent,
+                           String* reference_name,
+                           Object* child);
+  void SetElementReference(HeapObject* parent_obj,
+                           HeapEntry* parent,
+                           int index,
+                           Object* child);
+  void SetInternalReference(HeapObject* parent_obj,
+                            HeapEntry* parent,
+                            const char* reference_name,
+                            Object* child);
+  void SetPropertyReference(HeapObject* parent_obj,
+                            HeapEntry* parent,
+                            String* reference_name,
+                            Object* child);
+  void SetRootReference(Object* child);
 
   HeapSnapshot* snapshot_;
+  HeapSnapshotsCollection* collection_;
+  // Mapping from HeapObject* pointers to HeapEntry* pointers.
+  HeapEntriesMap entries_;
+  SnapshotFillerInterface* filler_;
+
+  friend class IndexedReferencesExtractor;
 
   DISALLOW_COPY_AND_ASSIGN(HeapSnapshotGenerator);
 };

deps/v8/src/runtime.cc

@@ -305,13 +305,14 @@ static Handle<Object> CreateObjectLiteralBoilerplate(
       }
       Handle<Object> result;
       uint32_t element_index = 0;
-      if (key->ToArrayIndex(&element_index)) {
+      if (key->IsSymbol()) {
-        // Array index (uint32).
+        // If key is a symbol it is not an array element.
-        result = SetElement(boilerplate, element_index, value);
-      } else if (key->IsSymbol()) {
-        // The key is not an array index.
         Handle<String> name(String::cast(*key));
+        ASSERT(!name->AsArrayIndex(&element_index));
         result = SetProperty(boilerplate, name, value, NONE);
+      } else if (key->ToArrayIndex(&element_index)) {
+        // Array index (uint32).
+        result = SetElement(boilerplate, element_index, value);
       } else {
         // Non-uint32 number.
         ASSERT(key->IsNumber());
@@ -1626,7 +1627,8 @@ static Object* Runtime_SetCode(Arguments args) {
     }
     // Set the code, scope info, formal parameter count,
     // and the length of the target function.
-    target->set_code(fun->code());
+    target->shared()->set_code(shared->code());
+    target->set_code(shared->code());
     target->shared()->set_scope_info(shared->scope_info());
     target->shared()->set_length(shared->length());
     target->shared()->set_formal_parameter_count(
@@ -6869,7 +6871,7 @@ static Object* Runtime_LazyCompile(Arguments args) {
 
   Handle<JSFunction> function = args.at<JSFunction>(0);
 #ifdef DEBUG
-  if (FLAG_trace_lazy) {
+  if (FLAG_trace_lazy && !function->shared()->is_compiled()) {
     PrintF("[lazy: ");
     function->shared()->name()->Print();
     PrintF("]\n");

deps/v8/src/serialize.h

@@ -248,7 +248,7 @@ class SerializerDeserializer: public ObjectVisitor {
   }
 
   static int partial_snapshot_cache_length_;
-  static const int kPartialSnapshotCacheCapacity = 1300;
+  static const int kPartialSnapshotCacheCapacity = 1400;
   static Object* partial_snapshot_cache_[];
 };
 

deps/v8/src/top.cc

@@ -107,16 +107,15 @@ void Top::IterateThread(ThreadVisitor* v, char* t) {
 void Top::Iterate(ObjectVisitor* v, ThreadLocalTop* thread) {
   v->VisitPointer(&(thread->pending_exception_));
   v->VisitPointer(&(thread->pending_message_obj_));
-  v->VisitPointer(
+  v->VisitPointer(BitCast<Object**>(&(thread->pending_message_script_)));
-      BitCast<Object**, Script**>(&(thread->pending_message_script_)));
+  v->VisitPointer(BitCast<Object**>(&(thread->context_)));
-  v->VisitPointer(BitCast<Object**, Context**>(&(thread->context_)));
   v->VisitPointer(&(thread->scheduled_exception_));
 
   for (v8::TryCatch* block = thread->TryCatchHandler();
        block != NULL;
        block = TRY_CATCH_FROM_ADDRESS(block->next_)) {
-    v->VisitPointer(BitCast<Object**, void**>(&(block->exception_)));
+    v->VisitPointer(BitCast<Object**>(&(block->exception_)));
-    v->VisitPointer(BitCast<Object**, void**>(&(block->message_)));
+    v->VisitPointer(BitCast<Object**>(&(block->message_)));
   }
 
   // Iterate over pointers on native execution stack.

deps/v8/src/utils.h

@@ -739,7 +739,11 @@ inline Dest BitCast(const Source& source) {
   return dest;
 }
 
-} }  // namespace v8::internal
+template <class Dest, class Source>
+inline Dest BitCast(Source* const & source) {
+    return BitCast<Dest>(reinterpret_cast<uintptr_t>(source));
+}
 
+} }  // namespace v8::internal
 
 #endif  // V8_UTILS_H_

deps/v8/src/version.cc

@@ -34,8 +34,8 @@
 // cannot be changed without changing the SCons build script.
 #define MAJOR_VERSION     2
 #define MINOR_VERSION     3
-#define BUILD_NUMBER      6
+#define BUILD_NUMBER      7
-#define PATCH_LEVEL       1
+#define PATCH_LEVEL       0
 #define CANDIDATE_VERSION false
 
 // Define SONAME to have the SCons build the put a specific SONAME into the

deps/v8/src/x64/assembler-x64.cc

@@ -253,7 +253,7 @@ Operand::Operand(const Operand& operand, int32_t offset) {
   int32_t disp_value = 0;
   if (mode == 0x80 || is_baseless) {
     // Mode 2 or mode 0 with rbp/r13 as base: Word displacement.
-    disp_value = *reinterpret_cast<const int32_t*>(&operand.buf_[disp_offset]);
+    disp_value = *BitCast<const int32_t*>(&operand.buf_[disp_offset]);
   } else if (mode == 0x40) {
     // Mode 1: Byte displacement.
     disp_value = static_cast<signed char>(operand.buf_[disp_offset]);

deps/v8/src/x64/builtins-x64.cc

@@ -310,7 +310,7 @@ void Builtins::Generate_FunctionCall(MacroAssembler* masm) {
   __ movsxlq(rbx,
              FieldOperand(rdx,
                           SharedFunctionInfo::kFormalParameterCountOffset));
-  __ movq(rdx, FieldOperand(rdx, SharedFunctionInfo::kCodeOffset));
+  __ movq(rdx, FieldOperand(rdi, JSFunction::kCodeOffset));
   __ lea(rdx, FieldOperand(rdx, Code::kHeaderSize));
   __ cmpq(rax, rbx);
   __ j(not_equal,

deps/v8/src/x64/codegen-x64.cc

@@ -2630,9 +2630,8 @@ void CodeGenerator::CallApplyLazy(Expression* applicand,
       __ j(is_smi, &build_args);
       __ CmpObjectType(rax, JS_FUNCTION_TYPE, rcx);
       __ j(not_equal, &build_args);
-      __ movq(rax, FieldOperand(rax, JSFunction::kSharedFunctionInfoOffset));
       Handle<Code> apply_code(Builtins::builtin(Builtins::FunctionApply));
-      __ Cmp(FieldOperand(rax, SharedFunctionInfo::kCodeOffset), apply_code);
+      __ Cmp(FieldOperand(rax, JSFunction::kCodeOffset), apply_code);
       __ j(not_equal, &build_args);
 
       // Check that applicand is a function.
@@ -8635,6 +8634,12 @@ void FastNewClosureStub::Generate(MacroAssembler* masm) {
   __ movq(FieldOperand(rax, JSFunction::kContextOffset), rsi);
   __ movq(FieldOperand(rax, JSFunction::kLiteralsOffset), rbx);
 
+  // Initialize the code pointer in the function to be the one
+  // found in the shared function info object.
+  __ movq(rdx, FieldOperand(rdx, SharedFunctionInfo::kCodeOffset));
+  __ movq(FieldOperand(rax, JSFunction::kCodeOffset), rdx);
+
+
   // Return and remove the on-stack parameter.
   __ ret(1 * kPointerSize);
 

deps/v8/src/x64/macro-assembler-x64.cc

@@ -582,8 +582,7 @@ void MacroAssembler::GetBuiltinEntry(Register target, Builtins::JavaScript id) {
     // Make sure the code objects in the builtins object and in the
     // builtin function are the same.
     push(target);
-    movq(target, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset));
+    movq(target, FieldOperand(rdi, JSFunction::kCodeOffset));
-    movq(target, FieldOperand(target, SharedFunctionInfo::kCodeOffset));
     cmpq(target, Operand(rsp, 0));
     Assert(equal, "Builtin code object changed");
     pop(target);
@@ -2290,7 +2289,7 @@ void MacroAssembler::InvokeFunction(Register function,
   movq(rsi, FieldOperand(function, JSFunction::kContextOffset));
   movsxlq(rbx,
           FieldOperand(rdx, SharedFunctionInfo::kFormalParameterCountOffset));
-  movq(rdx, FieldOperand(rdx, SharedFunctionInfo::kCodeOffset));
+  movq(rdx, FieldOperand(rdi, JSFunction::kCodeOffset));
   // Advances rdx to the end of the Code object header, to the start of
   // the executable code.
   lea(rdx, FieldOperand(rdx, Code::kHeaderSize));

deps/v8/test/cctest/test-api.cc

@@ -27,6 +27,8 @@
 
 #include <limits.h>
 
+#define USE_NEW_QUERY_CALLBACKS
+
 #include "v8.h"
 
 #include "api.h"
@@ -1194,12 +1196,12 @@ v8::Handle<Value> CheckThisNamedPropertySetter(Local<String> property,
   return v8::Handle<Value>();
 }
 
-v8::Handle<v8::Boolean> CheckThisIndexedPropertyQuery(
+v8::Handle<v8::Integer> CheckThisIndexedPropertyQuery(
     uint32_t index,
     const AccessorInfo& info) {
   ApiTestFuzzer::Fuzz();
   CHECK(info.This()->Equals(bottom));
-  return v8::Handle<v8::Boolean>();
+  return v8::Handle<v8::Integer>();
 }
 
 

deps/v8/test/cctest/test-cpu-profiler.cc

@@ -12,6 +12,7 @@ namespace i = v8::internal;
 
 using i::CodeEntry;
 using i::CpuProfile;
+using i::CpuProfiler;
 using i::CpuProfilesCollection;
 using i::ProfileGenerator;
 using i::ProfileNode;
@@ -225,4 +226,18 @@ TEST(TickEvents) {
   CHECK_EQ("bbb", bottom_up_ddd_stub_children->last()->entry()->name());
 }
 
+
+// http://crbug/51594
+// This test must not crash.
+TEST(CrashIfStoppingLastNonExistentProfile) {
+  InitializeVM();
+  TestSetup test_setup;
+  CpuProfiler::Setup();
+  CpuProfiler::StartProfiling("1");
+  CpuProfiler::StopProfiling("2");
+  CpuProfiler::StartProfiling("1");
+  CpuProfiler::StopProfiling("");
+  CpuProfiler::TearDown();
+}
+
 #endif  // ENABLE_LOGGING_AND_PROFILING

deps/v8/test/cctest/test-heap-profiler.cc

@@ -396,20 +396,17 @@ class NamedEntriesDetector {
         has_A2(false), has_B2(false), has_C2(false) {
   }
 
-  void Apply(i::HeapEntry* entry) {
+  void Apply(i::HeapEntry** entry_ptr) {
-    const char* node_name = entry->name();
+    if (IsReachableNodeWithName(*entry_ptr, "A1")) has_A1 = true;
-    if (strcmp("A1", node_name) == 0
+    if (IsReachableNodeWithName(*entry_ptr, "B1")) has_B1 = true;
-        && entry->GetRetainingPaths()->length() > 0) has_A1 = true;
+    if (IsReachableNodeWithName(*entry_ptr, "C1")) has_C1 = true;
-    if (strcmp("B1", node_name) == 0
+    if (IsReachableNodeWithName(*entry_ptr, "A2")) has_A2 = true;
-        && entry->GetRetainingPaths()->length() > 0) has_B1 = true;
+    if (IsReachableNodeWithName(*entry_ptr, "B2")) has_B2 = true;
-    if (strcmp("C1", node_name) == 0
+    if (IsReachableNodeWithName(*entry_ptr, "C2")) has_C2 = true;
-        && entry->GetRetainingPaths()->length() > 0) has_C1 = true;
+  }
-    if (strcmp("A2", node_name) == 0
+
-        && entry->GetRetainingPaths()->length() > 0) has_A2 = true;
+  static bool IsReachableNodeWithName(i::HeapEntry* entry, const char* name) {
-    if (strcmp("B2", node_name) == 0
+    return strcmp(name, entry->name()) == 0 && entry->painted_reachable();
-        && entry->GetRetainingPaths()->length() > 0) has_B2 = true;
-    if (strcmp("C2", node_name) == 0
-        && entry->GetRetainingPaths()->length() > 0) has_C2 = true;
   }
 
   bool has_A1;
@@ -460,7 +457,7 @@ static bool HasString(const v8::HeapGraphNode* node, const char* contents) {
   for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
     const v8::HeapGraphEdge* prop = node->GetChild(i);
     const v8::HeapGraphNode* node = prop->GetToNode();
-    if (node->GetType() == v8::HeapGraphNode::STRING) {
+    if (node->GetType() == v8::HeapGraphNode::kString) {
       v8::String::AsciiValue node_name(node->GetName());
       if (strcmp(contents, *node_name) == 0) return true;
     }
@@ -496,26 +493,34 @@ TEST(HeapSnapshot) {
       "var c2 = new C2(a2);");
   const v8::HeapSnapshot* snapshot_env2 =
       v8::HeapProfiler::TakeSnapshot(v8::String::New("env2"));
+  i::HeapSnapshot* i_snapshot_env2 =
+      const_cast<i::HeapSnapshot*>(
+          reinterpret_cast<const i::HeapSnapshot*>(snapshot_env2));
   const v8::HeapGraphNode* global_env2 = GetGlobalObject(snapshot_env2);
+  // Paint all nodes reachable from global object.
+  i_snapshot_env2->ClearPaint();
+  const_cast<i::HeapEntry*>(
+      reinterpret_cast<const i::HeapEntry*>(global_env2))->PaintAllReachable();
 
   // Verify, that JS global object of env2 doesn't have '..1'
   // properties, but has '..2' properties.
-  CHECK_EQ(NULL, GetProperty(global_env2, v8::HeapGraphEdge::PROPERTY, "a1"));
+  CHECK_EQ(NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "a1"));
-  CHECK_EQ(NULL, GetProperty(global_env2, v8::HeapGraphEdge::PROPERTY, "b1_1"));
+  CHECK_EQ(
-  CHECK_EQ(NULL, GetProperty(global_env2, v8::HeapGraphEdge::PROPERTY, "b1_2"));
+      NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "b1_1"));
-  CHECK_EQ(NULL, GetProperty(global_env2, v8::HeapGraphEdge::PROPERTY, "c1"));
+  CHECK_EQ(
+      NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "b1_2"));
+  CHECK_EQ(NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "c1"));
   const v8::HeapGraphNode* a2_node =
-      GetProperty(global_env2, v8::HeapGraphEdge::PROPERTY, "a2");
+      GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "a2");
   CHECK_NE(NULL, a2_node);
-  CHECK_NE(NULL, GetProperty(global_env2, v8::HeapGraphEdge::PROPERTY, "b2_1"));
+  CHECK_NE(
-  CHECK_NE(NULL, GetProperty(global_env2, v8::HeapGraphEdge::PROPERTY, "b2_2"));
+      NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "b2_1"));
-  CHECK_NE(NULL, GetProperty(global_env2, v8::HeapGraphEdge::PROPERTY, "c2"));
+  CHECK_NE(
+      NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "b2_2"));
+  CHECK_NE(NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "c2"));
 
   // Verify that anything related to '[ABC]1' is not reachable.
   NamedEntriesDetector det;
-  i::HeapSnapshot* i_snapshot_env2 =
-      const_cast<i::HeapSnapshot*>(
-          reinterpret_cast<const i::HeapSnapshot*>(snapshot_env2));
   i_snapshot_env2->IterateEntries(&det);
   CHECK(!det.has_A1);
   CHECK(!det.has_B1);
@@ -539,7 +544,7 @@ TEST(HeapSnapshot) {
     const v8::HeapGraphEdge* last_edge = path->GetEdge(edges_count - 1);
     v8::String::AsciiValue last_edge_name(last_edge->GetName());
     if (strcmp("a2", *last_edge_name) == 0
-        && last_edge->GetType() == v8::HeapGraphEdge::PROPERTY) {
+        && last_edge->GetType() == v8::HeapGraphEdge::kProperty) {
       has_global_obj_a2_ref = true;
       continue;
     }
@@ -547,19 +552,19 @@ TEST(HeapSnapshot) {
     const v8::HeapGraphEdge* prev_edge = path->GetEdge(edges_count - 2);
     v8::String::AsciiValue prev_edge_name(prev_edge->GetName());
     if (strcmp("x1", *last_edge_name) == 0
-        && last_edge->GetType() == v8::HeapGraphEdge::PROPERTY
+        && last_edge->GetType() == v8::HeapGraphEdge::kProperty
         && strcmp("c2", *prev_edge_name) == 0) has_c2_x1_ref = true;
     if (strcmp("x2", *last_edge_name) == 0
-        && last_edge->GetType() == v8::HeapGraphEdge::PROPERTY
+        && last_edge->GetType() == v8::HeapGraphEdge::kProperty
         && strcmp("c2", *prev_edge_name) == 0) has_c2_x2_ref = true;
     if (strcmp("1", *last_edge_name) == 0
-        && last_edge->GetType() == v8::HeapGraphEdge::ELEMENT
+        && last_edge->GetType() == v8::HeapGraphEdge::kElement
         && strcmp("c2", *prev_edge_name) == 0) has_c2_1_ref = true;
     if (strcmp("x", *last_edge_name) == 0
-        && last_edge->GetType() == v8::HeapGraphEdge::CONTEXT_VARIABLE
+        && last_edge->GetType() == v8::HeapGraphEdge::kContextVariable
         && strcmp("b2_1", *prev_edge_name) == 0) has_b2_1_x_ref = true;
     if (strcmp("x", *last_edge_name) == 0
-        && last_edge->GetType() == v8::HeapGraphEdge::CONTEXT_VARIABLE
+        && last_edge->GetType() == v8::HeapGraphEdge::kContextVariable
         && strcmp("b2_2", *prev_edge_name) == 0) has_b2_2_x_ref = true;
   }
   CHECK(has_global_obj_a2_ref);
@@ -571,6 +576,73 @@ TEST(HeapSnapshot) {
 }
 
 
+TEST(HeapSnapshotObjectSizes) {
+  v8::HandleScope scope;
+  LocalContext env;
+
+  //   -a-> X1 --a
+  // x -b-> X2 <-|
+  CompileAndRunScript(
+      "function X(a, b) { this.a = a; this.b = b; }\n"
+      "x = new X(new X(), new X());\n"
+      "x.a.a = x.b;");
+  const v8::HeapSnapshot* snapshot =
+      v8::HeapProfiler::TakeSnapshot(v8::String::New("sizes"));
+  const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
+  const v8::HeapGraphNode* x =
+      GetProperty(global, v8::HeapGraphEdge::kProperty, "x");
+  CHECK_NE(NULL, x);
+  const v8::HeapGraphNode* x_prototype =
+      GetProperty(x, v8::HeapGraphEdge::kProperty, "prototype");
+  CHECK_NE(NULL, x_prototype);
+  const v8::HeapGraphNode* x1 =
+      GetProperty(x, v8::HeapGraphEdge::kProperty, "a");
+  CHECK_NE(NULL, x1);
+  const v8::HeapGraphNode* x2 =
+      GetProperty(x, v8::HeapGraphEdge::kProperty, "b");
+  CHECK_NE(NULL, x2);
+  CHECK_EQ(
+      x->GetSelfSize() * 3,
+      x->GetReachableSize() - x_prototype->GetReachableSize());
+  CHECK_EQ(
+      x->GetSelfSize() * 3 + x_prototype->GetSelfSize(), x->GetRetainedSize());
+  CHECK_EQ(
+      x1->GetSelfSize() * 2,
+      x1->GetReachableSize() - x_prototype->GetReachableSize());
+  CHECK_EQ(
+      x1->GetSelfSize(), x1->GetRetainedSize());
+  CHECK_EQ(
+      x2->GetSelfSize(),
+      x2->GetReachableSize() - x_prototype->GetReachableSize());
+  CHECK_EQ(
+      x2->GetSelfSize(), x2->GetRetainedSize());
+}
+
+
+TEST(HeapSnapshotEntryChildren) {
+  v8::HandleScope scope;
+  LocalContext env;
+
+  CompileAndRunScript(
+      "function A() { }\n"
+      "a = new A;");
+  const v8::HeapSnapshot* snapshot =
+      v8::HeapProfiler::TakeSnapshot(v8::String::New("children"));
+  const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
+  for (int i = 0, count = global->GetChildrenCount(); i < count; ++i) {
+    const v8::HeapGraphEdge* prop = global->GetChild(i);
+    CHECK_EQ(global, prop->GetFromNode());
+  }
+  const v8::HeapGraphNode* a =
+      GetProperty(global, v8::HeapGraphEdge::kProperty, "a");
+  CHECK_NE(NULL, a);
+  for (int i = 0, count = a->GetChildrenCount(); i < count; ++i) {
+    const v8::HeapGraphEdge* prop = a->GetChild(i);
+    CHECK_EQ(a, prop->GetFromNode());
+  }
+}
+
+
 TEST(HeapSnapshotCodeObjects) {
   v8::HandleScope scope;
   LocalContext env;
@@ -584,20 +656,20 @@ TEST(HeapSnapshotCodeObjects) {
 
   const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
   const v8::HeapGraphNode* compiled =
-      GetProperty(global, v8::HeapGraphEdge::PROPERTY, "compiled");
+      GetProperty(global, v8::HeapGraphEdge::kProperty, "compiled");
   CHECK_NE(NULL, compiled);
-  CHECK_EQ(v8::HeapGraphNode::CLOSURE, compiled->GetType());
+  CHECK_EQ(v8::HeapGraphNode::kClosure, compiled->GetType());
   const v8::HeapGraphNode* lazy =
-      GetProperty(global, v8::HeapGraphEdge::PROPERTY, "lazy");
+      GetProperty(global, v8::HeapGraphEdge::kProperty, "lazy");
   CHECK_NE(NULL, lazy);
-  CHECK_EQ(v8::HeapGraphNode::CLOSURE, lazy->GetType());
+  CHECK_EQ(v8::HeapGraphNode::kClosure, lazy->GetType());
 
   // Find references to code.
   const v8::HeapGraphNode* compiled_code =
-      GetProperty(compiled, v8::HeapGraphEdge::INTERNAL, "code");
+      GetProperty(compiled, v8::HeapGraphEdge::kInternal, "code");
   CHECK_NE(NULL, compiled_code);
   const v8::HeapGraphNode* lazy_code =
-      GetProperty(lazy, v8::HeapGraphEdge::INTERNAL, "code");
+      GetProperty(lazy, v8::HeapGraphEdge::kInternal, "code");
   CHECK_NE(NULL, lazy_code);
 
   // Verify that non-compiled code doesn't contain references to "x"
@@ -607,7 +679,7 @@ TEST(HeapSnapshotCodeObjects) {
   for (int i = 0, count = compiled_code->GetChildrenCount(); i < count; ++i) {
     const v8::HeapGraphEdge* prop = compiled_code->GetChild(i);
     const v8::HeapGraphNode* node = prop->GetToNode();
-    if (node->GetType() == v8::HeapGraphNode::ARRAY) {
+    if (node->GetType() == v8::HeapGraphNode::kArray) {
       if (HasString(node, "x")) {
         compiled_references_x = true;
         break;
@@ -617,7 +689,7 @@ TEST(HeapSnapshotCodeObjects) {
   for (int i = 0, count = lazy_code->GetChildrenCount(); i < count; ++i) {
     const v8::HeapGraphEdge* prop = lazy_code->GetChild(i);
     const v8::HeapGraphNode* node = prop->GetToNode();
-    if (node->GetType() == v8::HeapGraphNode::ARRAY) {
+    if (node->GetType() == v8::HeapGraphNode::kArray) {
       if (HasString(node, "x")) {
         lazy_references_x = true;
         break;
@@ -634,11 +706,8 @@ TEST(HeapSnapshotCodeObjects) {
 // them to a signed type.
 #define CHECK_EQ_UINT64_T(a, b) \
   CHECK_EQ(static_cast<int64_t>(a), static_cast<int64_t>(b))
-#define CHECK_NE_UINT64_T(a, b) do              \
+#define CHECK_NE_UINT64_T(a, b) \
-  {                                             \
+  CHECK((a) != (b))  // NOLINT
-    bool ne = a != b;                           \
-    CHECK(ne);                                  \
-  } while (false)
 
 TEST(HeapEntryIdsAndGC) {
   v8::HandleScope scope;
@@ -662,27 +731,35 @@ TEST(HeapEntryIdsAndGC) {
   CHECK_NE_UINT64_T(0, global1->GetId());
   CHECK_EQ_UINT64_T(global1->GetId(), global2->GetId());
   const v8::HeapGraphNode* A1 =
-      GetProperty(global1, v8::HeapGraphEdge::PROPERTY, "A");
+      GetProperty(global1, v8::HeapGraphEdge::kProperty, "A");
+  CHECK_NE(NULL, A1);
   const v8::HeapGraphNode* A2 =
-      GetProperty(global2, v8::HeapGraphEdge::PROPERTY, "A");
+      GetProperty(global2, v8::HeapGraphEdge::kProperty, "A");
+  CHECK_NE(NULL, A2);
   CHECK_NE_UINT64_T(0, A1->GetId());
   CHECK_EQ_UINT64_T(A1->GetId(), A2->GetId());
   const v8::HeapGraphNode* B1 =
-      GetProperty(global1, v8::HeapGraphEdge::PROPERTY, "B");
+      GetProperty(global1, v8::HeapGraphEdge::kProperty, "B");
+  CHECK_NE(NULL, B1);
   const v8::HeapGraphNode* B2 =
-      GetProperty(global2, v8::HeapGraphEdge::PROPERTY, "B");
+      GetProperty(global2, v8::HeapGraphEdge::kProperty, "B");
+  CHECK_NE(NULL, B2);
   CHECK_NE_UINT64_T(0, B1->GetId());
   CHECK_EQ_UINT64_T(B1->GetId(), B2->GetId());
   const v8::HeapGraphNode* a1 =
-      GetProperty(global1, v8::HeapGraphEdge::PROPERTY, "a");
+      GetProperty(global1, v8::HeapGraphEdge::kProperty, "a");
+  CHECK_NE(NULL, a1);
   const v8::HeapGraphNode* a2 =
-      GetProperty(global2, v8::HeapGraphEdge::PROPERTY, "a");
+      GetProperty(global2, v8::HeapGraphEdge::kProperty, "a");
+  CHECK_NE(NULL, a2);
   CHECK_NE_UINT64_T(0, a1->GetId());
   CHECK_EQ_UINT64_T(a1->GetId(), a2->GetId());
   const v8::HeapGraphNode* b1 =
-      GetProperty(global1, v8::HeapGraphEdge::PROPERTY, "b");
+      GetProperty(global1, v8::HeapGraphEdge::kProperty, "b");
+  CHECK_NE(NULL, b1);
   const v8::HeapGraphNode* b2 =
-      GetProperty(global2, v8::HeapGraphEdge::PROPERTY, "b");
+      GetProperty(global2, v8::HeapGraphEdge::kProperty, "b");
+  CHECK_NE(NULL, b2);
   CHECK_NE_UINT64_T(0, b1->GetId());
   CHECK_EQ_UINT64_T(b1->GetId(), b2->GetId());
 }
@@ -717,15 +794,15 @@ TEST(HeapSnapshotsDiff) {
   for (int i = 0, count = additions_root->GetChildrenCount(); i < count; ++i) {
     const v8::HeapGraphEdge* prop = additions_root->GetChild(i);
     const v8::HeapGraphNode* node = prop->GetToNode();
-    if (node->GetType() == v8::HeapGraphNode::OBJECT) {
+    if (node->GetType() == v8::HeapGraphNode::kObject) {
       v8::String::AsciiValue node_name(node->GetName());
       if (strcmp(*node_name, "A") == 0) {
-        CHECK(IsNodeRetainedAs(node, v8::HeapGraphEdge::PROPERTY, "a"));
+        CHECK(IsNodeRetainedAs(node, v8::HeapGraphEdge::kProperty, "a"));
         CHECK(!found_A);
         found_A = true;
         s1_A_id = node->GetId();
       } else if (strcmp(*node_name, "B") == 0) {
-        CHECK(IsNodeRetainedAs(node, v8::HeapGraphEdge::PROPERTY, "b2"));
+        CHECK(IsNodeRetainedAs(node, v8::HeapGraphEdge::kProperty, "b2"));
         CHECK(!found_B);
         found_B = true;
       }
@@ -741,10 +818,10 @@ TEST(HeapSnapshotsDiff) {
   for (int i = 0, count = deletions_root->GetChildrenCount(); i < count; ++i) {
     const v8::HeapGraphEdge* prop = deletions_root->GetChild(i);
     const v8::HeapGraphNode* node = prop->GetToNode();
-    if (node->GetType() == v8::HeapGraphNode::OBJECT) {
+    if (node->GetType() == v8::HeapGraphNode::kObject) {
       v8::String::AsciiValue node_name(node->GetName());
       if (strcmp(*node_name, "A") == 0) {
-        CHECK(IsNodeRetainedAs(node, v8::HeapGraphEdge::PROPERTY, "a"));
+        CHECK(IsNodeRetainedAs(node, v8::HeapGraphEdge::kProperty, "a"));
         CHECK(!found_A_del);
         found_A_del = true;
         s2_A_id = node->GetId();
@@ -756,4 +833,35 @@ TEST(HeapSnapshotsDiff) {
   CHECK(s1_A_id != s2_A_id);
 }
 
+
+namespace v8 {
+namespace internal {
+
+class HeapSnapshotTester {
+ public:
+  static int CalculateNetworkSize(JSObject* obj) {
+    return HeapSnapshot::CalculateNetworkSize(obj);
+  }
+};
+
+} }  // namespace v8::internal
+
+// http://code.google.com/p/v8/issues/detail?id=822
+// Trying to call CalculateNetworkSize on an object with elements set
+// to non-FixedArray may cause an assertion error in debug builds.
+TEST(Issue822) {
+  v8::HandleScope scope;
+  LocalContext context;
+  const int kElementCount = 260;
+  uint8_t* pixel_data = reinterpret_cast<uint8_t*>(malloc(kElementCount));
+  i::Handle<i::PixelArray> pixels = i::Factory::NewPixelArray(kElementCount,
+                                                              pixel_data);
+  v8::Handle<v8::Object> obj = v8::Object::New();
+  // Set the elements to be the pixels.
+  obj->SetIndexedPropertiesToPixelData(pixel_data, kElementCount);
+  i::Handle<i::JSObject> jsobj = v8::Utils::OpenHandle(*obj);
+  // This call must not cause an assertion error in debug builds.
+  i::HeapSnapshotTester::CalculateNetworkSize(*jsobj);
+}
+
 #endif  // ENABLE_LOGGING_AND_PROFILING

deps/v8/test/mjsunit/object-literal.js

@@ -188,25 +188,3 @@ function testKeywordProperty(keyword) {
 for (var i = 0; i < keywords.length; i++) {
   testKeywordProperty(keywords[i]);
 }
-
-// Test getter and setter properties with string/number literal names.
-
-var obj = {get 42() { return 42; },
-           get 3.14() { return "PI"; },
-           get "PI"() { return 3.14; },
-           readback: 0,
-           set 37(v) { this.readback = v; },
-           set 1.44(v) { this.readback = v; },
-           set "Poo"(v) { this.readback = v; }}
-
-assertEquals(42, obj[42]);
-assertEquals("PI", obj[3.14]);
-assertEquals(3.14, obj["PI"]);
-obj[37] = "t1";
-assertEquals("t1", obj.readback);
-obj[1.44] = "t2";
-assertEquals("t2", obj.readback);
-obj["Poo"] = "t3";
-assertEquals("t3", obj.readback);
-
-

deps/v8/test/mjsunit/regress/bitops-register-alias.js

@@ -0,0 +1,31 @@
+// Copyright 2010 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Test that the code generator can cope with left and right being in
+// the same register for bitops.
+function f() { for (var i = 10; i < 100; i++) { return i | i; } }
+assertEquals(10, f());

deps/v8/tools/gyp/v8.gyp

@@ -108,8 +108,6 @@
             'conditions': [
               [ 'gcc_version==44', {
                 'cflags': [
-                  # Avoid gcc 4.4 strict aliasing issues in dtoa.c
-                  '-fno-strict-aliasing',
                   # Avoid crashes with gcc 4.4 in the v8 test suite.
                   '-fno-tree-vrp',
                 ],