diff --git a/llvm/lib/ExecutionEngine/Interpreter/Execution.cpp b/llvm/lib/ExecutionEngine/Interpreter/Execution.cpp
index e04f564..c5facde 100644
--- a/llvm/lib/ExecutionEngine/Interpreter/Execution.cpp
+++ b/llvm/lib/ExecutionEngine/Interpreter/Execution.cpp
@@ -475,6 +475,10 @@
   popStackAndReturnValueToCaller(RetTy, Result);
 }
 
+void Interpreter::visitUnwindInst(UnwindInst &I) {
+  abort ();
+}
+
 void Interpreter::visitBranchInst(BranchInst &I) {
   ExecutionContext &SF = ECStack.back();
   BasicBlock *Dest;