1 files changed, 2 insertions, 3 deletions
diff --git a/llvm/lib/Support/Unix/Unix.h b/llvm/lib/Support/Unix/Unix.h
index 60929139598b..1599241a344a 100644
--- a/llvm/lib/Support/Unix/Unix.h
+++ b/llvm/lib/Support/Unix/Unix.h
@@ -67,11 +67,10 @@ static inline bool MakeErrMsg(
 }
 
 // Include StrError(errnum) in a fatal error message.
-LLVM_ATTRIBUTE_NORETURN static inline void ReportErrnumFatal(const char *Msg,
-                                                             int errnum) {
+[[noreturn]] static inline void ReportErrnumFatal(const char *Msg, int errnum) {
   std::string ErrMsg;
   MakeErrMsg(&ErrMsg, Msg, errnum);
-  llvm::report_fatal_error(ErrMsg);
+  llvm::report_fatal_error(llvm::Twine(ErrMsg));
 }
 
 namespace llvm {