this case isn't handled


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28948 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Alpha/AlphaISelLowering.cpp b/lib/Target/Alpha/AlphaISelLowering.cpp
index 3f21616..fef5fec 100644
--- a/lib/Target/Alpha/AlphaISelLowering.cpp
+++ b/lib/Target/Alpha/AlphaISelLowering.cpp
@@ -64,6 +64,8 @@
   
   setOperationAction(ISD::TRUNCSTORE, MVT::i1, Promote);
 
+  setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1, Expand);
+
   setOperationAction(ISD::FREM, MVT::f32, Expand);
   setOperationAction(ISD::FREM, MVT::f64, Expand);