Index: lib/Target/AVR/AVRISelLowering.cpp
===================================================================
--- lib/Target/AVR/AVRISelLowering.cpp
+++ lib/Target/AVR/AVRISelLowering.cpp
@@ -48,6 +48,8 @@
   setOperationAction(ISD::GlobalAddress, MVT::i16, Custom);
   setOperationAction(ISD::BlockAddress, MVT::i16, Custom);
 
+  setOperationAction(ISD::STACKSAVE, MVT::Other, Expand);
+  setOperationAction(ISD::STACKRESTORE, MVT::Other, Expand);
   setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i8, Expand);
   setOperationAction(ISD::DYNAMIC_STACKALLOC, MVT::i16, Expand);