Support %_IsObject in Crankshaft.

src/hydrogen-instructions.h

 // Copyright 2010 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 122 matching lines @@
 //         HTypeofIs
 //       HLoadNamedField
 //       HPushArgument
 //       HTypeof
 //       HUnaryMathOperation
 //       HUnaryPredicate
 //         HClassOfTest
 //         HHasCachedArrayIndex
 //         HHasInstanceType
 //         HIsNull
+//         HIsObject
 //         HIsSmi
 //       HValueOf
 //     HUnknownOSRValue
 //   HPhi
 
 #define HYDROGEN_ALL_INSTRUCTION_LIST(V)       \
   V(ArithmeticBinaryOperation)                 \
   V(BinaryOperation)                           \
   V(BitwiseBinaryOperation)                    \
   V(Call)                                      \
@@ skipping 48 matching lines @@
   V(DeleteProperty)                            \
   V(Deoptimize)                                \
   V(Div)                                       \
   V(EnterInlined)                              \
   V(FunctionLiteral)                           \
   V(GlobalObject)                              \
   V(GlobalReceiver)                            \
   V(Goto)                                      \
   V(InstanceOf)                                \
   V(IsNull)                                    \
+  V(IsObject)                                  \
   V(IsSmi)                                     \
   V(HasInstanceType)                           \
   V(HasCachedArrayIndex)                       \
   V(ClassOfTest)                               \
   V(LeaveInlined)                              \
   V(LoadElements)                              \
   V(LoadGlobal)                                \
   V(LoadKeyedFastElement)                      \
   V(LoadKeyedGeneric)                          \
   V(LoadNamedField)                            \
@@ skipping 1868 matching lines @@
 
   bool is_strict() const { return is_strict_; }
 
   DECLARE_CONCRETE_INSTRUCTION(IsNull, "is_null")
 
  private:
   bool is_strict_;
 };
 
 
+class HIsObject: public HUnaryPredicate {
+ public:
+  explicit HIsObject(HValue* value) : HUnaryPredicate(value) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(IsObject, "is_object")
+};
+
+
 class HIsSmi: public HUnaryPredicate {
  public:
   explicit HIsSmi(HValue* value) : HUnaryPredicate(value) { }
 
   DECLARE_CONCRETE_INSTRUCTION(IsSmi, "is_smi")
 };
 
 
 class HHasInstanceType: public HUnaryPredicate {
  public:
@@ skipping 787 matching lines @@
   HValue* object() const { return left(); }
   HValue* key() const { return right(); }
 };
 
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_INSTRUCTIONS_H_