[stubs] Port KeyedStoreIC_Megamorphic stub to Turbofan

src/code-factory.cc

 // Copyright 2014 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/code-factory.h"
 
 #include "src/bootstrapper.h"
 #include "src/ic/ic.h"
 
 namespace v8 {
@@ skipping 105 matching lines @@
     KeyedStoreICTFStub stub(isolate, StoreICState(language_mode));
     return make_callable(stub);
   }
   KeyedStoreICStub stub(isolate, StoreICState(language_mode));
   return make_callable(stub);
 }
 
 // static
 Callable CodeFactory::KeyedStoreIC_Megamorphic(Isolate* isolate,
                                                LanguageMode language_mode) {
+  if (FLAG_tf_store_ic_stub) {
+    return Callable(
+        language_mode == STRICT
+            ? isolate->builtins()->KeyedStoreIC_Megamorphic_Strict_TF()
+            : isolate->builtins()->KeyedStoreIC_Megamorphic_TF(),
+        StoreWithVectorDescriptor(isolate));
+  }
   return Callable(language_mode == STRICT
                       ? isolate->builtins()->KeyedStoreIC_Megamorphic_Strict()
                       : isolate->builtins()->KeyedStoreIC_Megamorphic(),
                   StoreWithVectorDescriptor(isolate));
 }
 
 // static
 Callable CodeFactory::CompareIC(Isolate* isolate, Token::Value op) {
   CompareICStub stub(isolate, op);
   return make_callable(stub);
@@ skipping 358 matching lines @@
 }
 
 // static
 Callable CodeFactory::InterpreterOnStackReplacement(Isolate* isolate) {
   return Callable(isolate->builtins()->InterpreterOnStackReplacement(),
                   ContextOnlyDescriptor(isolate));
 }
 
 }  // namespace internal
 }  // namespace v8