diff --git a/llvm/include/llvm/ExecutionEngine/Orc/LLJIT.h b/llvm/include/llvm/ExecutionEngine/Orc/LLJIT.h
--- a/llvm/include/llvm/ExecutionEngine/Orc/LLJIT.h
+++ b/llvm/include/llvm/ExecutionEngine/Orc/LLJIT.h
@@ -54,6 +54,12 @@
                                  IRTransformLayer::TransformFunction T);
   };
 
+  enum JITKind { JK_LLJIT = 0, JK_LLLAZYJIT };
+
+  virtual JITKind getKind() const { return JK_LLJIT; }
+
+  static bool classof(const LLJIT *JIT) { return JIT->getKind() == JK_LLJIT; }
+
   /// Destruct this instance. If a multi-threaded instance, waits for all
   /// compile threads to complete.
   virtual ~LLJIT();
@@ -239,8 +245,13 @@
     return addLazyIRModule(*Main, std::move(M));
   }
 
-private:
+  JITKind getKind() const override { return JK_LLLAZYJIT; }
 
+  static bool classof(const LLJIT *JIT) {
+    return JIT->getKind() == JK_LLLAZYJIT;
+  }
+
+private:
   // Create a single-threaded LLLazyJIT instance.
   LLLazyJIT(LLLazyJITBuilderState &S, Error &Err);