diff --git a/include/llvm/ADT/STLExtras.h b/include/llvm/ADT/STLExtras.h
index 8dbf79031c3..0b0346be2cc 100644
--- a/include/llvm/ADT/STLExtras.h
+++ b/include/llvm/ADT/STLExtras.h
@@ -225,7 +225,7 @@ inline T *array_endof(T (&x)[N]) {
 
 /// Find the length of an array.
 template<class T, std::size_t N>
-inline size_t array_lengthof(T (&x)[N]) {
+inline size_t array_lengthof(T (&)[N]) {
   return N;
 }
 
@@ -243,7 +243,7 @@ static inline int array_pod_sort_comparator(const void *P1, const void *P2) {
 /// get_array_pad_sort_comparator - This is an internal helper function used to
 /// get type deduction of T right.
 template<typename T>
-static int (*get_array_pad_sort_comparator(const T &X))
+static int (*get_array_pad_sort_comparator(const T &))
              (const void*, const void*) {
   return array_pod_sort_comparator<T>;
 }