Index: llvm/lib/ExecutionEngine/Interpreter/Interpreter.h
===================================================================
--- llvm/lib/ExecutionEngine/Interpreter/Interpreter.h
+++ llvm/lib/ExecutionEngine/Interpreter/Interpreter.h
@@ -66,7 +66,7 @@
   std::vector<GenericValue>  VarArgs; // Values passed through an ellipsis
   AllocaHolder Allocas;            // Track memory allocated by alloca
 
-  ExecutionContext() : CurFunction(nullptr), CurBB(nullptr), CurInst(nullptr) {}
+  ExecutionContext() : CurFunction(nullptr), CurBB(nullptr), CurInst(nullptr), Caller(nullptr) {}
 };
 
 // Interpreter - This class represents the entirety of the interpreter.