Add more methods to be more value-like

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8074 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Support/ValueHolder.h b/include/llvm/Support/ValueHolder.h
index 33fda2c3414d671f5921a12bdb7b3d8d78f87e69..aacdb5b75e57d6339e9717b3f1793b1934566674 100644 (file)
--- a/include/llvm/Support/ValueHolder.h
+++ b/include/llvm/Support/ValueHolder.h
@@ -15,6 +15,7 @@
 
 struct ValueHolder : public User {
   ValueHolder(Value *V = 0);
+  ValueHolder(const ValueHolder &VH) : User(VH.getType(), Value::TypeVal) {}
 
   // Getters...
   const Value *get() const { return getOperand(0); }
@@ -28,6 +29,11 @@ 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";
   }