Fix MSVC "not all control paths return a value" warning. NFC.

RKSimon · RKSimon · commit 798e04f93769 · 2024-04-10T17:50:13.000+01:00
diff --git a/clang/include/clang/Basic/OpenACCKinds.h b/clang/include/clang/Basic/OpenACCKinds.h
@@ -430,6 +430,7 @@ inline StreamTy &printOpenACCDefaultClauseKind(StreamTy &Out,
   case OpenACCDefaultClauseKind::Invalid:
     return Out << "<invalid>";
   }
+  llvm_unreachable("Unknown OpenACCDefaultClauseKind enum");
 }
 
 inline const StreamingDiagnostic &operator<<(const StreamingDiagnostic &Out,

Original file line number	Diff line number	Diff line change
`@@ -430,6 +430,7 @@ inline StreamTy &printOpenACCDefaultClauseKind(StreamTy &Out,`
`430`	`430`	`case OpenACCDefaultClauseKind::Invalid:`
`431`	`431`	`return Out << "<invalid>";`
`432`	`432`	`}`
	`433`	`+ llvm_unreachable("Unknown OpenACCDefaultClauseKind enum");`
`433`	`434`	`}`
`434`	`435`
`435`	`436`	`inline const StreamingDiagnostic &operator<<(const StreamingDiagnostic &Out,`