Pass checked values to HLoadNamedField, removing the need for extra type-check field.

src/hydrogen.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1233 matching lines @@
   HInstruction* AddFastElementAccess(
       HValue* elements,
       HValue* checked_key,
       HValue* val,
       HValue* dependency,
       ElementsKind elements_kind,
       bool is_store,
       LoadKeyedHoleMode load_mode,
       KeyedAccessStoreMode store_mode);
 
-  HLoadNamedField* BuildLoadNamedField(
-      HValue* object,
-      HObjectAccess access,
-      HValue* typecheck);
-  HInstruction* BuildLoadStringLength(HValue* object, HValue* typecheck);
-  HStoreNamedField* AddStoreMapConstant(HValue *object, Handle<Map>);
-  HLoadNamedField* AddLoadElements(HValue *object, HValue *typecheck);
+  HLoadNamedField* BuildLoadNamedField(HValue* object, HObjectAccess access);
+  HInstruction* BuildLoadStringLength(HValue* object, HValue* checked_value);
+  HStoreNamedField* AddStoreMapConstant(HValue* object, Handle<Map>);
+  HLoadNamedField* AddLoadElements(HValue* object);
   HLoadNamedField* AddLoadFixedArrayLength(HValue *object);
 
   HValue* AddLoadJSBuiltin(Builtins::JavaScript builtin);
 
   HValue* TruncateToNumber(HValue* value, Handle<Type>* expected);
 
   void PushAndAdd(HInstruction* instr);
 
   void FinishExitWithHardDeoptimization(const char* reason,
                                         HBasicBlock* continuation);
@@ skipping 265 matching lines @@
   void BuildCompareNil(
       HValue* value,
       Handle<Type> type,
       int position,
       HIfContinuation* continuation);
 
   HValue* BuildCreateAllocationMemento(HValue* previous_object,
                                        int previous_object_size,
                                        HValue* payload);
 
-  void BuildConstantMapCheck(Handle<JSObject> constant, CompilationInfo* info);
-  void BuildCheckPrototypeMaps(Handle<JSObject> prototype,
-                               Handle<JSObject> holder);
+  HInstruction* BuildConstantMapCheck(Handle<JSObject> constant,
+                                      CompilationInfo* info);
+  HInstruction* BuildCheckPrototypeMaps(Handle<JSObject> prototype,
+                                        Handle<JSObject> holder);
 
   HInstruction* BuildGetNativeContext();
   HInstruction* BuildGetArrayFunction();
 
  private:
   HGraphBuilder();
 
   void PadEnvironmentForContinuation(HBasicBlock* from,
                                      HBasicBlock* continuation);
 
@@ skipping 33 matching lines @@
 inline HInstruction* HGraphBuilder::AddUncasted<HSimulate>(
     BailoutId id,
     RemovableSimulate removable) {
   HSimulate* instr = current_block()->CreateSimulate(id, removable);
   AddInstruction(instr);
   return instr;
 }
 
 
 template<>
-inline HInstruction* HGraphBuilder::NewUncasted<HLoadNamedField>(
-    HValue* object, HObjectAccess access) {
-  return NewUncasted<HLoadNamedField>(object, access,
-                                      static_cast<HValue*>(NULL));
-}
-
-
-template<>
-inline HInstruction* HGraphBuilder::AddUncasted<HLoadNamedField>(
-    HValue* object, HObjectAccess access) {
-  return AddUncasted<HLoadNamedField>(object, access,
-                                      static_cast<HValue*>(NULL));
-}
-
-
-template<>
 inline HInstruction* HGraphBuilder::AddUncasted<HSimulate>(BailoutId id) {
   return AddUncasted<HSimulate>(id, FIXED_SIMULATE);
 }
 
 
 template<>
 inline HInstruction* HGraphBuilder::AddUncasted<HReturn>(HValue* value) {
   int num_parameters = graph()->info()->num_parameters();
   HValue* params = AddUncasted<HConstant>(num_parameters);
   HReturn* return_instruction = New<HReturn>(value, params);
@@ skipping 694 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_