Fix a small little typo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77289 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/LowerSwitch.cpp b/lib/Transforms/Utils/LowerSwitch.cpp
index 5c20a81..0f1e719 100644
--- a/lib/Transforms/Utils/LowerSwitch.cpp
+++ b/lib/Transforms/Utils/LowerSwitch.cpp
@@ -110,7 +110,7 @@
 // operator<< - Used for debugging purposes.
 //
 static raw_ostream& operator<<(raw_ostream &O,
-                               const LowerSwitch::CaseVector &C) __attribute((used));
+                               const LowerSwitch::CaseVector &C) ATTRIBUTE_USED;
 static raw_ostream& operator<<(raw_ostream &O,
                                const LowerSwitch::CaseVector &C) {
   O << "[";