diff --git a/lib/Target/Alpha/AlphaISelLowering.cpp b/lib/Target/Alpha/AlphaISelLowering.cpp
index 79b3765..e11ed7c 100644
--- a/lib/Target/Alpha/AlphaISelLowering.cpp
+++ b/lib/Target/Alpha/AlphaISelLowering.cpp
@@ -107,6 +107,9 @@
   setOperationAction(ISD::UMUL_LOHI, MVT::i64, Expand);
   setOperationAction(ISD::SMUL_LOHI, MVT::i64, Expand);
 
+  setOperationAction(ISD::SRL_PARTS, MVT::i64, Expand);
+  setOperationAction(ISD::SRA_PARTS, MVT::i64, Expand);
+  setOperationAction(ISD::SHL_PARTS, MVT::i64, Expand);
 
   // We don't support sin/cos/sqrt/pow
   setOperationAction(ISD::FSIN , MVT::f64, Expand);