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

diff --git a/clang/lib/AST/Decl.cpp b/clang/lib/AST/Decl.cpp
index e441c338a2c766b0ba428409b17234d0f88549fc..99926b2786ef2b2336de470dc2b7d399e1bf5e01 100644 (file)
--- a/clang/lib/AST/Decl.cpp
+++ b/clang/lib/AST/Decl.cpp
@@ -3331,6 +3331,7 @@ bool FunctionDecl::isInlineBuiltinDeclaration() const {
   case GVA_StrongExternal:
     return true;
   }
+  llvm_unreachable("Unknown GVALinkage");
 }
 
 bool FunctionDecl::isDestroyingOperatorDelete() const {