diff --git a/lib/Transforms/ObjCARC/ObjCARCOpts.cpp b/lib/Transforms/ObjCARC/ObjCARCOpts.cpp
index c082701f8a5..dbb2cc88d1e 100644
--- a/lib/Transforms/ObjCARC/ObjCARCOpts.cpp
+++ b/lib/Transforms/ObjCARC/ObjCARCOpts.cpp
@@ -316,9 +316,9 @@ namespace {
     S_Retain,         ///< objc_retain(x).
     S_CanRelease,     ///< foo(x) -- x could possibly see a ref count decrement.
     S_Use,            ///< any use of x.
+    S_Stop,           ///< like S_Release, but code motion is stopped.
     S_Release,        ///< objc_release(x).
     S_MovableRelease, ///< objc_release(x), !clang.imprecise_release.
-    S_Stop            ///< like S_Release, but code motion is stopped.
   };
 
   raw_ostream &operator<<(raw_ostream &OS, const Sequence S)