diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
index 46e0459e4c90..2365d59d22b4 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -104,6 +104,8 @@ SystemZTargetLowering::SystemZTargetLowering(SystemZTargetMachine &tm) :
   setOperationAction(ISD::SREM,             MVT::i64, Expand);
   setOperationAction(ISD::UREM,             MVT::i64, Expand);
 
+  setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1, Expand);
+
   // FIXME: Can we lower these 2 efficiently?
   setOperationAction(ISD::SETCC,            MVT::i32, Expand);
   setOperationAction(ISD::SETCC,            MVT::i64, Expand);