[clang] d5e0868 - [Basic] Fix Wreturn-type gcc warning (NFC)

[Yang Fan via cfe-commits]

Author: Yang Fan
Date: 2021-02-26T17:14:13+08:00
New Revision: d5e0868e5e321e2a2f3bf73599ae9239c5aaa0c9

URL: https://github.com/llvm/llvm-project/commit/d5e0868e5e321e2a2f3bf73599ae9239c5aaa0c9
DIFF: https://github.com/llvm/llvm-project/commit/d5e0868e5e321e2a2f3bf73599ae9239c5aaa0c9.diff

LOG: [Basic] Fix Wreturn-type gcc warning (NFC)

Added: 
    

Modified: 
    clang/include/clang/Basic/Diagnostic.h

Removed: 
    


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diff  --git a/clang/include/clang/Basic/Diagnostic.h b/clang/include/clang/Basic/Diagnostic.h
index 8f94d271aaa4..3b915fb15a89 100644
--- a/clang/include/clang/Basic/Diagnostic.h
+++ b/clang/include/clang/Basic/Diagnostic.h
@@ -731,6 +731,7 @@ class DiagnosticsEngine : public RefCountedBase<DiagnosticsEngine> {
     case Ovl_Best:
       return NumOverloadsToShow;
     }
+    llvm_unreachable("invalid OverloadsShown kind");
   }
 
   /// Call this after showing N overload candidates.  This influences the value