Index: llvm/lib/ExecutionEngine/Orc/SimpleRemoteEPC.cpp
===================================================================
--- llvm/lib/ExecutionEngine/Orc/SimpleRemoteEPC.cpp
+++ llvm/lib/ExecutionEngine/Orc/SimpleRemoteEPC.cpp
@@ -220,7 +220,7 @@
       dbgs() << "CallWrapper";
       break;
     default:
-      llvm_unreachable("Invalid opcode");
+      assert(false && "Invalid opcode");
     }
     dbgs() << ", seqno = " << SeqNo
            << ", tag-addr = " << formatv("{0:x}", TagAddr.getValue())