Fix "not all control paths return a value" warning. NFCI.

diff --git a/clang/lib/Basic/ProfileList.cpp b/clang/lib/Basic/ProfileList.cpp
index 56bc37a..2cb05c1 100644 (file)
--- a/clang/lib/Basic/ProfileList.cpp
+++ b/clang/lib/Basic/ProfileList.cpp
@@ -82,6 +82,7 @@ static StringRef getSectionName(CodeGenOptions::ProfileInstrKind Kind) {
   case CodeGenOptions::ProfileCSIRInstr:
     return "csllvm";
   }
+  llvm_unreachable("Unhandled CodeGenOptions::ProfileInstrKind enum");
 }
 
 llvm::Optional<bool>