Support %_IsObject in Crankshaft.

src/arm/lithium-arm.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 103 matching lines @@
 //     LClassOfTestAndBranch
 //     LDeleteProperty
 //     LDoubleToI
 //     LHasCachedArrayIndex
 //     LHasCachedArrayIndexAndBranch
 //     LHasInstanceType
 //     LHasInstanceTypeAndBranch
 //     LInteger32ToDouble
 //     LIsNull
 //     LIsNullAndBranch
+//     LIsObject
+//     LIsObjectAndBranch
 //     LIsSmi
 //     LIsSmiAndBranch
 //     LLoadNamedField
 //     LLoadNamedGeneric
 //     LNumberTagD
 //     LNumberTagI
 //     LPushArgument
 //     LReturn
 //     LSmiTag
 //     LStoreGlobal
@@ skipping 62 matching lines @@
   V(FunctionLiteral)                            \
   V(Gap)                                        \
   V(GlobalObject)                               \
   V(GlobalReceiver)                             \
   V(Goto)                                       \
   V(InstanceOf)                                 \
   V(InstanceOfAndBranch)                        \
   V(Integer32ToDouble)                          \
   V(IsNull)                                     \
   V(IsNullAndBranch)                            \
+  V(IsObject)                                   \
+  V(IsObjectAndBranch)                          \
   V(IsSmi)                                      \
   V(IsSmiAndBranch)                             \
   V(HasInstanceType)                            \
   V(HasInstanceTypeAndBranch)                   \
   V(HasCachedArrayIndex)                        \
   V(HasCachedArrayIndexAndBranch)               \
   V(ClassOfTest)                                \
   V(ClassOfTestAndBranch)                       \
   V(Label)                                      \
   V(LazyBailout)                                \
@@ skipping 519 matching lines @@
 
   LOperand* temp() const { return temp_; }
 
  private:
   LOperand* temp_;
   int true_block_id_;
   int false_block_id_;
 };
 
 
+class LIsObject: public LUnaryOperation {
+ public:
+  LIsObject(LOperand* value, LOperand* temp)
+      : LUnaryOperation(value), temp_(temp) {}
+
+  DECLARE_CONCRETE_INSTRUCTION(IsObject, "is-object")
+
+  LOperand* temp() { return temp_; }

[Kevin Millikin (Chromium), 2010/12/15 11:45:38]

We've made these accessors const in this file, so you should probably keep that
style.

+
+ private:
+  LOperand* temp_;
+};
+
+
+class LIsObjectAndBranch: public LIsObject {
+ public:
+  LIsObjectAndBranch(LOperand* value,
+                     LOperand* temp,
+                     LOperand* temp2,
+                     int true_block_id,
+                     int false_block_id)
+      : LIsObject(value, temp),
+        temp2_(temp2),
+        true_block_id_(true_block_id),
+        false_block_id_(false_block_id) { }
+
+  DECLARE_CONCRETE_INSTRUCTION(IsObjectAndBranch, "is-object-and-branch")
+  virtual void PrintDataTo(StringStream* stream) const;
+  virtual bool IsControl() const { return true; }
+
+  int true_block_id() const { return true_block_id_; }
+  int false_block_id() const { return false_block_id_; }
+
+  LOperand* temp2() { return temp2_; }
+
+ private:
+  LOperand* temp2_;
+  int true_block_id_;
+  int false_block_id_;
+};
+
+
 class LIsSmi: public LUnaryOperation {
  public:
   explicit LIsSmi(LOperand* value) : LUnaryOperation(value) {}
 
   DECLARE_CONCRETE_INSTRUCTION(IsSmi, "is-smi")
   DECLARE_HYDROGEN_ACCESSOR(IsSmi)
 };
 
 
 class LIsSmiAndBranch: public LIsSmi {
@@ skipping 1305 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_INSTRUCTION
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_LITHIUM_ARM_H_