Simplify make_range by using move semantics

Move the iterators into the range the same way the range's ctor moves
them into the members.

Also remove some redundant top level parens in the return statement.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205993 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/ADT/iterator_range.h b/include/llvm/ADT/iterator_range.h
index 6735700e046855dbbe5706b901dc345d8b46d7d7..dd17d6c8f7b45ca1a6a8a0d391ebdaafe224eebe 100644 (file)
--- a/include/llvm/ADT/iterator_range.h
+++ b/include/llvm/ADT/iterator_range.h
@@ -45,8 +45,8 @@ public:
 ///
 /// This provides a bit of syntactic sugar to make using sub-ranges
 /// in for loops a bit easier. Analogous to std::make_pair().
-template<class T> iterator_range<T> make_range(const T &x, const T &y) {
-  return (iterator_range<T>(x, y));
+template <class T> iterator_range<T> make_range(T x, T y) {
+  return iterator_range<T>(std::move(x), std::move(y));
 }
 }