diff --git a/include/llvm/Value.h b/include/llvm/Value.h
index ee5f56b1673..1fe6902d8e6 100644
--- a/include/llvm/Value.h
+++ b/include/llvm/Value.h
@@ -128,6 +128,7 @@ public:
     GlobalVariableVal,      // This is an instance of GlobalVariable
     ConstantVal,            // This is an instance of Constant
     InstructionVal,         // This is an instance of Instruction
+    ValueListVal           // This is for bcreader, a special ValTy
   };
   unsigned getValueType() const {
     return SubclassID;
@@ -177,7 +178,9 @@ void Use::set(Value *V) {
 // the subtype header files to test to see if the value is a subclass...
 //
 template <> inline bool isa_impl<Constant, Value>(const Value &Val) { 
-  return Val.getValueType() == Value::ConstantVal; 
+  return Val.getValueType() == Value::ConstantVal ||
+         Val.getValueType() == Value::FunctionVal ||
+	 Val.getValueType() == Value::GlobalVariableVal;
 }
 template <> inline bool isa_impl<Argument, Value>(const Value &Val) { 
   return Val.getValueType() == Value::ArgumentVal;