Refacturing BuildEmitDeepCopy.

BUG=

Review URL: https://codereview.chromium.org/15700007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14845 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/code-stubs-hydrogen.cc

@@ -499,8 +499,8 @@ HValue* CodeStubGraphBuilder<TransitionElementsKindStub>::BuildCodeStub() {
   HInstruction* elements_length =
       AddInstruction(new(zone) HFixedArrayBaseLength(elements));
 
-  HValue* new_elements =
-      BuildAllocateAndInitializeElements(context(), to_kind, elements_length);
+  HValue* new_elements = BuildAllocateElementsAndInitializeElementsHeader(
+      context(), to_kind, elements_length);
 
   BuildCopyElements(context(), elements,
                     casted_stub()->from_kind(), new_elements,

src/hydrogen.h

@@ -1275,11 +1275,11 @@ class HGraphBuilder {
                                 ElementsKind kind,
                                 HValue* capacity);
 
-  void BuildInitializeElements(HValue* elements,
+  void BuildInitializeElementsHeader(HValue* elements,
                                      ElementsKind kind,
                                      HValue* capacity);
 
-  HValue* BuildAllocateAndInitializeElements(HValue* context,
+  HValue* BuildAllocateElementsAndInitializeElementsHeader(HValue* context,
                                                            ElementsKind kind,
                                                            HValue* capacity);
 
@@ -1738,13 +1738,37 @@ class HOptimizedGraphBuilder: public HGraphBuilder, public AstVisitor {
                          int* offset,
                          AllocationSiteMode mode);
 
-  MUST_USE_RESULT HValue* BuildCopyObjectHeader(
+  MUST_USE_RESULT HValue* BuildEmitObjectHeader(
       Handle<JSObject> boilerplat_object,
       HInstruction* target,
       int object_offset,
       int elements_offset,
       int elements_size);
 
+  void BuildEmitInObjectProperties(Handle<JSObject> boilerplate_object,
+                                   Handle<JSObject> original_boilerplate_object,
+                                   HValue* object_properties,
+                                   HInstruction* target,
+                                   int* offset);
+
+  void BuildEmitElements(Handle<FixedArrayBase> elements,
+                         Handle<FixedArrayBase> original_elements,
+                         ElementsKind kind,
+                         HValue* object_elements,
+                         HInstruction* target,
+                         int* offset);
+
+  void BuildEmitFixedDoubleArray(Handle<FixedArrayBase> elements,
+                                 ElementsKind kind,
+                                 HValue* object_elements);
+
+  void BuildEmitFixedArray(Handle<FixedArrayBase> elements,
+                           Handle<FixedArrayBase> original_elements,
+                           ElementsKind kind,
+                           HValue* object_elements,
+                           HInstruction* target,
+                           int* offset);
+
   void AddCheckPrototypeMaps(Handle<JSObject> holder,
                              Handle<Map> receiver_map);