Support optimization of named function literals.

src/hydrogen-instructions.h

 // Copyright 2011 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 83 matching lines @@
   V(CompareMap)                                \
   V(CompareSymbolEq)                           \
   V(Constant)                                  \
   V(Context)                                   \
   V(DeleteProperty)                            \
   V(Deoptimize)                                \
   V(Div)                                       \
   V(EnterInlined)                              \
   V(ExternalArrayLength)                       \
   V(FixedArrayLength)                          \
-  V(ToInt32)                                   \
   V(ForceRepresentation)                       \
   V(FunctionLiteral)                           \
   V(GetCachedArrayIndex)                       \
   V(GlobalObject)                              \
   V(GlobalReceiver)                            \
   V(Goto)                                      \
+  V(HasCachedArrayIndex)                       \
   V(HasInstanceType)                           \
-  V(HasCachedArrayIndex)                       \
   V(In)                                        \
   V(InstanceOf)                                \
   V(InstanceOfKnownGlobal)                     \
   V(InvokeFunction)                            \
   V(IsConstructCall)                           \
   V(IsNull)                                    \
   V(IsObject)                                  \
   V(IsSmi)                                     \
   V(IsUndetectable)                            \
   V(JSArrayLength)                             \
@@ skipping 22 matching lines @@
   V(Return)                                    \
   V(Sar)                                       \
   V(Shl)                                       \
   V(Shr)                                       \
   V(Simulate)                                  \
   V(StackCheck)                                \
   V(StoreContextSlot)                          \
   V(StoreGlobalCell)                           \
   V(StoreGlobalGeneric)                        \
   V(StoreKeyedFastElement)                     \
+  V(StoreKeyedGeneric)                         \
   V(StoreKeyedSpecializedArrayElement)         \
-  V(StoreKeyedGeneric)                         \
   V(StoreNamedField)                           \
   V(StoreNamedGeneric)                         \
   V(StringAdd)                                 \
   V(StringCharCodeAt)                          \
   V(StringCharFromCode)                        \
   V(StringLength)                              \
   V(Sub)                                       \
   V(Test)                                      \
+  V(ThisFunction)                              \
   V(Throw)                                     \
   V(ToFastProperties)                          \
+  V(ToInt32)                                   \
   V(Typeof)                                    \
   V(TypeofIs)                                  \
   V(UnaryMathOperation)                        \
   V(UnknownOSRValue)                           \
   V(UseConst)                                  \
   V(ValueOf)
 
 #define GVN_FLAG_LIST(V)                       \
   V(Calls)                                     \
   V(InobjectFields)                            \
@@ skipping 1118 matching lines @@
   virtual Representation RequiredInputRepresentation(int index) const {
     return Representation::Tagged();
   }
 
   HValue* argument() { return OperandAt(0); }
 
   DECLARE_CONCRETE_INSTRUCTION(PushArgument)
 };
 
 
+class HThisFunction: public HTemplateInstruction<0> {
+ public:
+  HThisFunction() {
+    set_representation(Representation::Tagged());
+    SetFlag(kUseGVN);
+  }
+
+  virtual Representation RequiredInputRepresentation(int index) const {
+    return Representation::None();
+  }
+
+  DECLARE_CONCRETE_INSTRUCTION(ThisFunction)
+
+ protected:
+  virtual bool DataEquals(HValue* other) { return true; }
+};
+
+
 class HContext: public HTemplateInstruction<0> {
  public:
   HContext() {
     set_representation(Representation::Tagged());
     SetFlag(kUseGVN);
   }
 
   virtual Representation RequiredInputRepresentation(int index) const {
     return Representation::None();
   }
 
-  DECLARE_CONCRETE_INSTRUCTION(Context);
+  DECLARE_CONCRETE_INSTRUCTION(Context)
 
  protected:
   virtual bool DataEquals(HValue* other) { return true; }
 };
 
 
 class HOuterContext: public HUnaryOperation {
  public:
   explicit HOuterContext(HValue* inner) : HUnaryOperation(inner) {
     set_representation(Representation::Tagged());
@@ skipping 2686 matching lines @@
 
   DECLARE_CONCRETE_INSTRUCTION(In)
 };
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_