Index: llvm/trunk/lib/Target/AVR/AVRISelLowering.cpp
===================================================================
--- llvm/trunk/lib/Target/AVR/AVRISelLowering.cpp
+++ llvm/trunk/lib/Target/AVR/AVRISelLowering.cpp
@@ -361,7 +361,7 @@
   SDValue Callee = DAG.getExternalSymbol(getLibcallName(LC),
                                          getPointerTy(DAG.getDataLayout()));
 
-  Type *RetTy = (Type *)StructType::get(Ty, Ty, nullptr);
+  Type *RetTy = (Type *)StructType::get(Ty, Ty);
 
   SDLoc dl(Op);
   TargetLowering::CallLoweringInfo CLI(DAG);