Added llvm_unreachable to make sure the switch is always exhaustive.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@304997 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Sema/SemaTemplate.cpp b/lib/Sema/SemaTemplate.cpp
index 341e0abc1c34f32296658652f4c36e21115b26e3..1eea151a4ec8b7b44374d2f82bbcc5824bd3c145 100644 (file)
--- a/lib/Sema/SemaTemplate.cpp
+++ b/lib/Sema/SemaTemplate.cpp
@@ -7622,6 +7622,7 @@ Sema::CheckSpecializationInstantiationRedecl(SourceLocation NewLoc,
 
       return true;
     }
+    llvm_unreachable("The switch over PrevTSK must be exhaustive.");
 
   case TSK_ExplicitInstantiationDeclaration:
     switch (PrevTSK) {