diff --git a/include/llvm/Intrinsics.h b/include/llvm/Intrinsics.h
index 6a9ea809b14..41aa3ed5314 100644
--- a/include/llvm/Intrinsics.h
+++ b/include/llvm/Intrinsics.h
@@ -60,6 +60,8 @@ namespace Intrinsic {
     // Input/Output intrinsics
     readport,
     writeport,
+    readio,
+    writeio,
 
     //===------------------------------------------------------------------===//
     // This section defines intrinsic functions used to represent Alpha