Index: lib/Target/AMDGPU/AMDGPUISelLowering.cpp
===================================================================
--- lib/Target/AMDGPU/AMDGPUISelLowering.cpp
+++ lib/Target/AMDGPU/AMDGPUISelLowering.cpp
@@ -619,7 +619,7 @@
   DiagnosticInfoUnsupported NoCalls(
       Fn, "unsupported call to function " + FuncName, CLI.DL.getDebugLoc());
   DAG.getContext()->diagnose(NoCalls);
-  return SDValue();
+  return DAG.getEntryNode();
 }
 
 SDValue AMDGPUTargetLowering::LowerDYNAMIC_STACKALLOC(SDValue Op,