Revert "Convert UnaryOpStub to a HydrogenCodeStub"

src/hydrogen-instructions.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 74 matching lines @@
   V(CallNamed)                                 \
   V(CallNew)                                   \
   V(CallNewArray)                              \
   V(CallRuntime)                               \
   V(CallStub)                                  \
   V(Change)                                    \
   V(CheckFunction)                             \
   V(CheckHeapObject)                           \
   V(CheckInstanceType)                         \
   V(CheckMaps)                                 \
-  V(CheckSmi)                                  \
   V(CheckPrototypeMaps)                        \
   V(ClampToUint8)                              \
   V(ClassOfTestAndBranch)                      \
   V(CompareIDAndBranch)                        \
   V(CompareGeneric)                            \
   V(CompareObjectEqAndBranch)                  \
   V(CompareMap)                                \
   V(CompareConstantEqAndBranch)                \
   V(Constant)                                  \
   V(Context)                                   \
@@ skipping 16 matching lines @@
   V(HasInstanceTypeAndBranch)                  \
   V(InductionVariableAnnotation)               \
   V(In)                                        \
   V(InnerAllocatedObject)                      \
   V(InstanceOf)                                \
   V(InstanceOfKnownGlobal)                     \
   V(InstanceSize)                              \
   V(InvokeFunction)                            \
   V(IsConstructCallAndBranch)                  \
   V(IsObjectAndBranch)                         \
-  V(IsNumberAndBranch)                         \
   V(IsStringAndBranch)                         \
   V(IsSmiAndBranch)                            \
   V(IsUndetectableAndBranch)                   \
   V(LeaveInlined)                              \
   V(LoadContextSlot)                           \
   V(LoadExternalArrayPointer)                  \
   V(LoadFunctionPrototype)                     \
   V(LoadGlobalCell)                            \
   V(LoadGlobalGeneric)                         \
   V(LoadKeyed)                                 \
@@ skipping 2786 matching lines @@
   HCheckInstanceType(HValue* value, Check check)
       : HUnaryOperation(value), check_(check) {
     set_representation(Representation::Tagged());
     SetFlag(kUseGVN);
   }
 
   const Check check_;
 };
 
 
-class HCheckSmi: public HUnaryOperation {
- public:
-  explicit HCheckSmi(HValue* value) : HUnaryOperation(value) {
-    set_representation(Representation::Smi());
-    SetFlag(kUseGVN);
-  }
-
-  virtual Representation RequiredInputRepresentation(int index) {
-    return Representation::Tagged();
-  }
-
-  virtual HType CalculateInferredType();
-
-  virtual HValue* Canonicalize() {
-    HType value_type = value()->type();
-    if (value_type.IsSmi()) {
-      return NULL;
-    }
-    return this;
-  }
-
-  DECLARE_CONCRETE_INSTRUCTION(CheckSmi)
-
- protected:
-  virtual bool DataEquals(HValue* other) { return true; }
-};
-
-
-class HIsNumberAndBranch: public HUnaryControlInstruction {
- public:
-  explicit HIsNumberAndBranch(HValue* value)
-    : HUnaryControlInstruction(value, NULL, NULL) {
-    SetFlag(kFlexibleRepresentation);
-  }
-
-  virtual Representation RequiredInputRepresentation(int index) {
-    return Representation::None();
-  }
-
-  DECLARE_CONCRETE_INSTRUCTION(IsNumberAndBranch)
-};
-
-
 class HCheckHeapObject: public HUnaryOperation {
  public:
   explicit HCheckHeapObject(HValue* value) : HUnaryOperation(value) {
     set_representation(Representation::Tagged());
     SetFlag(kUseGVN);
   }
 
   virtual Representation RequiredInputRepresentation(int index) {
     return Representation::Tagged();
   }
@@ skipping 3689 matching lines @@
   virtual bool IsDeletable() const { return true; }
 };
 
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_