Use a stub in crankshaft for grow store arrays.

src/code-stubs-hydrogen.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/bailout-reason.h"
 #include "src/code-stubs.h"
 #include "src/field-index.h"
 #include "src/hydrogen.h"
@@ skipping 530 matching lines @@
   return GetParameter(2);
 }
 
 
 Handle<Code> StoreScriptContextFieldStub::GenerateCode() {
   return DoGenerateCode(this);
 }
 
 
 template <>
+HValue* CodeStubGraphBuilder<GrowArrayElementsStub>::BuildCodeStub() {
+  HValue* object = GetParameter(GrowArrayElementsDescriptor::kObjectIndex);
+  HValue* key = GetParameter(GrowArrayElementsDescriptor::kKeyIndex);
+  HValue* current_capacity =
+      GetParameter(GrowArrayElementsDescriptor::kCapacityIndex);
+  ElementsKind kind = casted_stub()->elements_kind();
+
+  HValue* elements = AddLoadElements(object);
+  HValue* length =
+      casted_stub()->is_js_array()
+          ? Add<HLoadNamedField>(object, static_cast<HValue*>(NULL),
+                                 HObjectAccess::ForArrayLength(kind))
+          : current_capacity;
+
+  return BuildCheckAndGrowElementsCapacity(object, elements, kind, length,
+                                           current_capacity, key);
+}
+
+
+Handle<Code> GrowArrayElementsStub::GenerateCode() {
+  return DoGenerateCode(this);
+}
+
+
+template <>
 HValue* CodeStubGraphBuilder<LoadFastElementStub>::BuildCodeStub() {
   HInstruction* load = BuildUncheckedMonomorphicElementAccess(
       GetParameter(LoadDescriptor::kReceiverIndex),
       GetParameter(LoadDescriptor::kNameIndex), NULL,
       casted_stub()->is_js_array(), casted_stub()->elements_kind(), LOAD,
       NEVER_RETURN_HOLE, STANDARD_STORE);
   return load;
 }
 
 
@@ skipping 1500 matching lines @@
 
   // Probe the stub cache.
   Code::Flags flags = Code::RemoveTypeAndHolderFromFlags(
       Code::ComputeHandlerFlags(Code::LOAD_IC));
   Add<HTailCallThroughMegamorphicCache>(receiver, name, flags);
 
   // We never continue.
   return graph()->GetConstant0();
 }
 } }  // namespace v8::internal