VectorICs: New interface descriptor for vector transitioning stores.

src/code-stubs.cc

Index: src/code-stubs.cc
diff --git a/src/code-stubs.cc b/src/code-stubs.cc
index b48b828ae7f336643e9c4d8886fb7ba4f7277177..42fefce92dbe57563535fd8d25fef7c98eaddc78 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -653,7 +653,8 @@ CallInterfaceDescriptor HandlerStub::GetCallInterfaceDescriptor() const {
     return LoadWithVectorDescriptor(isolate());
   } else {
     DCHECK(kind() == Code::STORE_IC || kind() == Code::KEYED_STORE_IC);
-    return StoreDescriptor(isolate());
+    return FLAG_vector_stores ? VectorStoreICDescriptor(isolate())
+                              : StoreDescriptor(isolate());
   }
 }
 
@@ -679,6 +680,18 @@ void ToObjectStub::InitializeDescriptor(CodeStubDescriptor* descriptor) {
 
 CallInterfaceDescriptor StoreTransitionStub::GetCallInterfaceDescriptor()
     const {
+  if (FLAG_vector_stores) {
+    return VectorStoreTransitionDescriptor(isolate());
+  }
+  return StoreTransitionDescriptor(isolate());
+}
+
+
+CallInterfaceDescriptor
+ElementsTransitionAndStoreStub::GetCallInterfaceDescriptor() const {
+  if (FLAG_vector_stores) {
+    return VectorStoreTransitionDescriptor(isolate());
+  }
   return StoreTransitionDescriptor(isolate());
 }