[Remark] Suppress the "-Wreturn-type" compiler warning, NFC
llvm-svn: 366874
diff --git a/llvm/lib/Remarks/RemarkParser.cpp b/llvm/lib/Remarks/RemarkParser.cpp
index ac46ae3..19d9dcf 100644
--- a/llvm/lib/Remarks/RemarkParser.cpp
+++ b/llvm/lib/Remarks/RemarkParser.cpp
@@ -60,6 +60,7 @@
     return createStringError(std::make_error_code(std::errc::invalid_argument),
                              "Unknown remark parser format.");
   }
+  llvm_unreachable("unhandled ParseFormat");
 }
 
 Expected<std::unique_ptr<Parser>>
@@ -76,6 +77,7 @@
     return createStringError(std::make_error_code(std::errc::invalid_argument),
                              "Unknown remark parser format.");
   }
+  llvm_unreachable("unhandled ParseFormat");
 }
 
 // Wrapper that holds the state needed to interact with the C API.