[KeyedLoadIC] Support Smi "handlers" for simple field loads

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 31 matching lines @@
 // static
 Callable CodeFactory::LoadGlobalICInOptimizedCode(Isolate* isolate,
                                                   TypeofMode typeof_mode) {
   auto code = LoadGlobalIC::initialize_stub_in_optimized_code(
       isolate, LoadGlobalICState(typeof_mode).GetExtraICState());
   return Callable(code, LoadGlobalWithVectorDescriptor(isolate));
 }
 
 // static
 Callable CodeFactory::KeyedLoadIC(Isolate* isolate) {
+  if (FLAG_tf_load_ic_stub) {
+    KeyedLoadICTrampolineTFStub stub(isolate);
+    return Callable(stub.GetCode(), LoadDescriptor(isolate));
+  }
   KeyedLoadICTrampolineStub stub(isolate);
   return Callable(stub.GetCode(), LoadDescriptor(isolate));
 }
 
 
 // static
 Callable CodeFactory::KeyedLoadICInOptimizedCode(Isolate* isolate) {
-  auto code =
-      KeyedLoadIC::initialize_stub_in_optimized_code(isolate, kNoExtraICState);
+  auto code = KeyedLoadIC::initialize_stub_in_optimized_code(isolate);
   return Callable(code, LoadWithVectorDescriptor(isolate));
 }
 
+// static
+Callable CodeFactory::KeyedLoadIC_Megamorphic(Isolate* isolate) {
+  return Callable(isolate->builtins()->KeyedLoadIC_Megamorphic(),
+                  LoadWithVectorDescriptor(isolate));
+}
 
 // static
 Callable CodeFactory::CallIC(Isolate* isolate, int argc,
                              ConvertReceiverMode mode,
                              TailCallMode tail_call_mode) {
   CallICTrampolineStub stub(isolate, CallICState(argc, mode, tail_call_mode));
   return Callable(stub.GetCode(), CallFunctionWithFeedbackDescriptor(isolate));
 }
 
 
@@ skipping 522 matching lines @@
 // static
 Callable CodeFactory::InterpreterCEntry(Isolate* isolate, int result_size) {
   // Note: If we ever use fpregs in the interpreter then we will need to
   // save fpregs too.
   CEntryStub stub(isolate, result_size, kDontSaveFPRegs, kArgvInRegister);
   return Callable(stub.GetCode(), InterpreterCEntryDescriptor(isolate));
 }
 
 }  // namespace internal
 }  // namespace v8