Silence GCC warning about dropping off a non-void function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172839 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/ObjCARC.cpp b/lib/Transforms/Scalar/ObjCARC.cpp
index e93ca273b1149f03eb26238d9223503397b6803c..c3a0fd6c8b4830ca55a22cb79d9002fb72a1d27a 100644 (file)
--- a/lib/Transforms/Scalar/ObjCARC.cpp
+++ b/lib/Transforms/Scalar/ObjCARC.cpp
@@ -219,6 +219,7 @@ namespace {
     case IC_None:
       return OS << "IC_None";
     }
+    llvm_unreachable("Unknown instruction class!");
   }
 }