Added LLVM copyright header (for lack of a better term).

[oota-llvm.git] / include / llvm / Support / ValueHolder.h

diff --git a/include/llvm/Support/ValueHolder.h b/include/llvm/Support/ValueHolder.h
index 33fda2c3414d671f5921a12bdb7b3d8d78f87e69..62ab9d9ca29bb8fd90268ef86b68d19704176836 100644 (file)
--- a/include/llvm/Support/ValueHolder.h
+++ b/include/llvm/Support/ValueHolder.h
@@ -1,4 +1,11 @@
 //===-- llvm/Support/ValueHolder.h - Wrapper for Value's --------*- C++ -*-===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
 //
 // This class defines a simple subclass of User, which keeps a pointer to a
 // Value, which automatically updates when Value::replaceAllUsesWith is called.
@@ -15,12 +22,13 @@
 
 struct ValueHolder : public User {
   ValueHolder(Value *V = 0);
+  ValueHolder(const ValueHolder &VH) : User(VH.getType(), Value::TypeVal) {
+    Operands.push_back(Use(VH.get(), this));
+  }
 
   // Getters...
-  const Value *get() const { return getOperand(0); }
-  operator const Value*() const { return getOperand(0); }
-  Value *get() { return getOperand(0); }
-  operator Value*() { return getOperand(0); }
+  Value *get() const { return (Value*)getOperand(0); }
+  operator Value*() const { return (Value*)getOperand(0); }
 
   // Setters...
   const ValueHolder &operator=(Value *V) {
@@ -28,6 +36,11 @@ struct ValueHolder : public User {
     return *this;
   }
 
+  const ValueHolder &operator=(ValueHolder &VH) {
+    setOperand(0, VH);
+    return *this;
+  }
+
   virtual void print(std::ostream& OS) const {
     OS << "ValueHolder";
   }