[ADT] Suppress unused attribute warning in unit test

llvm-svn: 305166

1 files changed, 5 insertions, 5 deletions

diff --git a/llvm/unittests/ADT/SmallVectorTest.cpp b/llvm/unittests/ADT/SmallVectorTest.cpp
index 5903ce8c08e..89f761975ea 100644
--- a/llvm/unittests/ADT/SmallVectorTest.cpp
+++ b/llvm/unittests/ADT/SmallVectorTest.cpp
@@ -444,11 +444,11 @@ TYPED_TEST(SmallVectorTest, AppendRepeatedNonForwardIterator) {
   SCOPED_TRACE("AppendRepeatedTest");
 
   struct output_iterator {
-    typedef std::output_iterator_tag iterator_category;
-    typedef int value_type;
-    typedef int difference_type;
-    typedef value_type *pointer;
-    typedef value_type &reference;
+    typedef __attribute__((used)) std::output_iterator_tag iterator_category;
+    typedef __attribute__((used)) int value_type;
+    typedef __attribute__((used)) int difference_type;
+    typedef __attribute__((used)) value_type *pointer;
+    typedef __attribute__((used)) value_type &reference;
     operator int() { return 2; }
     operator Constructable() { return 7; }
   };