Index: include/__tuple
===================================================================
--- include/__tuple
+++ include/__tuple
@@ -86,6 +86,11 @@
 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
 typename tuple_element<_Ip, tuple<_Tp...> >::type&&
 get(tuple<_Tp...>&&) _NOEXCEPT;
+
+template <size_t _Ip, class ..._Tp>
+_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
+const typename tuple_element<_Ip, tuple<_Tp...> >::type&&
+get(const tuple<_Tp...>&&) _NOEXCEPT;
 #endif
 
 // pair specializations
@@ -109,6 +114,11 @@
 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
 typename tuple_element<_Ip, pair<_T1, _T2> >::type&&
 get(pair<_T1, _T2>&&) _NOEXCEPT;
+
+template <size_t _Ip, class _T1, class _T2>
+_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
+const typename tuple_element<_Ip, pair<_T1, _T2> >::type&&
+get(const pair<_T1, _T2>&&) _NOEXCEPT;
 #endif
 
 // array specializations
@@ -132,6 +142,11 @@
 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
 _Tp&&
 get(array<_Tp, _Size>&&) _NOEXCEPT;
+
+template <size_t _Ip, class _Tp, size_t _Size>
+_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
+const _Tp&&
+get(const array<_Tp, _Size>&&) _NOEXCEPT;
 #endif
 
 #if !defined(_LIBCPP_HAS_NO_VARIADICS)
Index: include/array
===================================================================
--- include/array
+++ include/array
@@ -95,6 +95,7 @@
 template <size_t I, class T, size_t N> T& get(array<T, N>&) noexcept; // constexpr in C++14
 template <size_t I, class T, size_t N> const T& get(const array<T, N>&) noexcept; // constexpr in C++14
 template <size_t I, class T, size_t N> T&& get(array<T, N>&&) noexcept; // constexpr in C++14
+template <size_t I, class T, size_t N> const T&& get(const array<T, N>&&) noexcept; // constexpr in C++14
 
 }  // std
 
@@ -324,6 +325,15 @@
     return _VSTD::move(__a.__elems_[_Ip]);
 }
 
+template <size_t _Ip, class _Tp, size_t _Size>
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
+const _Tp&&
+get(const array<_Tp, _Size>&& __a) _NOEXCEPT
+{
+    static_assert(_Ip < _Size, "Index out of bounds in std::get<> (const std::array &&)");
+    return _VSTD::move(__a.__elems_[_Ip]);
+}
+
 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
 
 _LIBCPP_END_NAMESPACE_STD
Index: include/tuple
===================================================================
--- include/tuple
+++ include/tuple
@@ -95,6 +95,9 @@
 template <size_t I, class... T>
     typename tuple_element<I, tuple<T...>>::type&&
     get(tuple<T...>&&) noexcept; // constexpr in C++14
+template <size_t I, class... T>
+    const typename tuple_element<I, tuple<T...>>::type&&
+    get(const tuple<T...>&&) noexcept; // constexpr in C++14
 
 template <class T1, class... T>
     constexpr T1& get(tuple<T...>&) noexcept;  // C++14
@@ -102,6 +105,8 @@
     constexpr const T1& get(const tuple<T...>&) noexcept;   // C++14
 template <class T1, class... T>
     constexpr T1&& get(tuple<T...>&&) noexcept;   // C++14
+template <class T1, class... T>
+    constexpr const T1&& get(const tuple<T...>&&) noexcept;   // C++14
 
 // 20.4.1.6, relational operators:
 template<class... T, class... U> bool operator==(const tuple<T...>&, const tuple<U...>&); // constexpr in C++14
@@ -507,6 +512,8 @@
         const typename tuple_element<_Jp, tuple<_Up...> >::type& get(const tuple<_Up...>&) _NOEXCEPT;
     template <size_t _Jp, class ..._Up> friend _LIBCPP_CONSTEXPR_AFTER_CXX11
         typename tuple_element<_Jp, tuple<_Up...> >::type&& get(tuple<_Up...>&&) _NOEXCEPT;
+    template <size_t _Jp, class ..._Up> friend _LIBCPP_CONSTEXPR_AFTER_CXX11
+        const typename tuple_element<_Jp, tuple<_Up...> >::type&& get(const tuple<_Up...>&&) _NOEXCEPT;
 public:
 
     template <bool _Dummy = true, class = typename enable_if<
@@ -766,6 +773,16 @@
              static_cast<__tuple_leaf<_Ip, type>&&>(__t.base_).get());
 }
 
+template <size_t _Ip, class ..._Tp>
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
+const typename tuple_element<_Ip, tuple<_Tp...> >::type&&
+get(const tuple<_Tp...>&& __t) _NOEXCEPT
+{
+    typedef typename tuple_element<_Ip, tuple<_Tp...> >::type type;
+    return static_cast<const type&&>(
+             static_cast<const __tuple_leaf<_Ip, type>&&>(__t.base_).get());
+}
+
 #if _LIBCPP_STD_VER > 11
 // get by type
 template <typename _T1, size_t _Idx, typename... _Args>
@@ -822,6 +839,13 @@
     return _VSTD::get<__find_exactly_one_t<_T1, _Args...>::value>(_VSTD::move(__tup));
 }
 
+template <class _T1, class... _Args>
+inline _LIBCPP_INLINE_VISIBILITY
+constexpr _T1 const&& get(tuple<_Args...> const&& __tup) noexcept
+{
+    return _VSTD::get<__find_exactly_one_t<_T1, _Args...>::value>(_VSTD::move(__tup));
+}
+
 #endif
 
 // tie
Index: include/utility
===================================================================
--- include/utility
+++ include/utility
@@ -120,6 +120,10 @@
     typename tuple_element<I, pair<T1, T2> >::type&&
     get(pair<T1, T2>&&) noexcept; // constexpr in C++14
 
+template<size_t I, class T1, class T2>
+    const typename tuple_element<I, pair<T1, T2> >::type&&
+    get(const pair<T1, T2>&&) noexcept; // constexpr in C++14
+
 template<class T1, class T2>
     constexpr T1& get(pair<T1, T2>&) noexcept; // C++14
 
@@ -129,6 +133,9 @@
 template<size_t I, class T1, class T2>
     constexpr T1&& get(pair<T1, T2>&&) noexcept; // C++14
 
+template<size_t I, class T1, class T2>
+    constexpr const T1&& get(const pair<T1, T2>&&) noexcept; // C++14
+
 // C++14
 
 template<class T, T... I>
@@ -560,6 +567,12 @@
     _T1&&
     get(pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<_T1>(__p.first);}
 
+    template <class _T1, class _T2>
+    static
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
+    const _T1&&
+    get(const pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<const _T1>(__p.first);}
+
 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
 };
 
@@ -586,6 +599,12 @@
     _T2&&
     get(pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<_T2>(__p.second);}
 
+    template <class _T1, class _T2>
+    static
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
+    const _T2&&
+    get(const pair<_T1, _T2>&& __p) _NOEXCEPT {return _VSTD::forward<const _T2>(__p.second);}
+
 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
 };
 
@@ -615,6 +634,14 @@
     return __get_pair<_Ip>::get(_VSTD::move(__p));
 }
 
+template <size_t _Ip, class _T1, class _T2>
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
+const typename tuple_element<_Ip, pair<_T1, _T2> >::type&&
+get(const pair<_T1, _T2>&& __p) _NOEXCEPT
+{
+    return __get_pair<_Ip>::get(_VSTD::move(__p));
+}
+
 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
 
 #if _LIBCPP_STD_VER > 11
@@ -641,6 +668,13 @@
 
 template <class _T1, class _T2>
 inline _LIBCPP_INLINE_VISIBILITY
+constexpr _T1 const && get(pair<_T1, _T2> const&& __p) _NOEXCEPT
+{
+    return __get_pair<0>::get(_VSTD::move(__p));
+}
+
+template <class _T1, class _T2>
+inline _LIBCPP_INLINE_VISIBILITY
 constexpr _T1 & get(pair<_T2, _T1>& __p) _NOEXCEPT
 {
     return __get_pair<1>::get(__p);
@@ -660,6 +694,13 @@
     return __get_pair<1>::get(_VSTD::move(__p));
 }
 
+template <class _T1, class _T2>
+inline _LIBCPP_INLINE_VISIBILITY
+constexpr _T1 const && get(pair<_T2, _T1> const&& __p) _NOEXCEPT
+{
+    return __get_pair<1>::get(_VSTD::move(__p));
+}
+
 #endif
 
 #if _LIBCPP_STD_VER > 11
Index: test/std/containers/sequences/array/array.tuple/get_const_rv.pass.cpp
===================================================================
--- /dev/null
+++ test/std/containers/sequences/array/array.tuple/get_const_rv.pass.cpp
@@ -0,0 +1,35 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <array>
+
+// template <size_t I, class T, size_t N> const T&& get(const array<T, N>&& a);
+
+// UNSUPPORTED: c++98, c++03
+
+#include <array>
+#include <memory>
+#include <utility>
+#include <cassert>
+
+// std::array is explicitly allowed to be initialized with A a = { init-list };.
+// Disable the missing braces warning for this reason.
+#include "disable_missing_braces_warning.h"
+
+int main()
+{
+
+    {
+        typedef std::unique_ptr<double> T;
+        typedef std::array<T, 1> C;
+        const C c = {std::unique_ptr<double>(new double(3.5))};
+        const T&& t = std::get<0>(std::move(c));
+        assert(*t == 3.5);
+    }
+}
Index: test/std/utilities/tuple/tuple.tuple/tuple.elem/get_const_rv.fail.cpp
===================================================================
--- /dev/null
+++ test/std/utilities/tuple/tuple.tuple/tuple.elem/get_const_rv.fail.cpp
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <tuple>
+
+// template <class... Types> class tuple;
+
+// template <size_t I, class... Types>
+//   const typename tuple_element<I, tuple<Types...> >::type&&
+//   get(const tuple<Types...>&& t);
+
+// UNSUPPORTED: c++98, c++03
+
+#include <tuple>
+
+template <class T> void cref(T const&) {};
+template <class T> void cref(T const&&) = delete;
+
+std::tuple<int> const tup4() { return std::make_tuple(4); }
+
+int main()
+{
+    {
+        cref(std::get<0>(tup4()));
+    }
+}
Index: test/std/utilities/tuple/tuple.tuple/tuple.elem/get_const_rv.pass.cpp
===================================================================
--- /dev/null
+++ test/std/utilities/tuple/tuple.tuple/tuple.elem/get_const_rv.pass.cpp
@@ -0,0 +1,43 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <tuple>
+
+// template <class... Types> class tuple;
+
+// template <size_t I, class... Types>
+//   const typename tuple_element<I, tuple<Types...> >::type&&
+//   get(const tuple<Types...>&& t);
+
+// UNSUPPORTED: c++98, c++03
+
+#include <tuple>
+#include <utility>
+#include <string>
+#include <cassert>
+
+struct Empty {};
+
+int main()
+{
+    {
+        typedef std::tuple<int> T;
+        const T t(3);
+        int const&& i = std::get<0>(std::move(t));
+        assert(i == 3);
+    }
+    {
+        typedef std::tuple<std::string, int> T;
+        const T t("high", 5);
+        std::string const&& s = std::get<0>(std::move(t));
+        int const&& i = std::get<1>(std::move(t));
+        assert(s == "high");
+        assert(i == 5);
+    }
+}
Index: test/std/utilities/tuple/tuple.tuple/tuple.elem/tuple.by.type.pass.cpp
===================================================================
--- test/std/utilities/tuple/tuple.tuple/tuple.elem/tuple.by.type.pass.cpp
+++ test/std/utilities/tuple/tuple.tuple/tuple.elem/tuple.by.type.pass.cpp
@@ -56,5 +56,13 @@
     assert(std::get<0>(t) == nullptr); // has been moved from
     }
 
+    {
+    typedef std::unique_ptr<int> upint;
+    const std::tuple<upint> t(upint(new int(4)));
+    const upint&& p = std::get<upint>(std::move(t)); // get const rvalue
+    assert(*p == 4);
+    assert(std::get<0>(t) != nullptr);
+    }
+
 #endif
 }
Index: test/std/utilities/utility/pairs/pair.astuple/get_const_rv.pass.cpp
===================================================================
--- /dev/null
+++ test/std/utilities/utility/pairs/pair.astuple/get_const_rv.pass.cpp
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <utility>
+
+// template <class T1, class T2> struct pair
+
+// template<size_t I, class T1, class T2>
+//     const typename tuple_element<I, std::pair<T1, T2> >::type&&
+//     get(const pair<T1, T2>&&);
+
+#include <utility>
+#include <memory>
+#include <cassert>
+
+int main()
+{
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+    {
+        typedef std::pair<std::unique_ptr<int>, short> P;
+        const P p(std::unique_ptr<int>(new int(3)), 4);
+        const std::unique_ptr<int>&& ptr = std::get<0>(std::move(p));
+        assert(*ptr == 3);
+    }
+#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
+}
Index: test/std/utilities/utility/pairs/pair.astuple/pairs.by.type.pass.cpp
===================================================================
--- test/std/utilities/utility/pairs/pair.astuple/pairs.by.type.pass.cpp
+++ test/std/utilities/utility/pairs/pair.astuple/pairs.by.type.pass.cpp
@@ -40,5 +40,13 @@
     assert(std::get<0>(t) == nullptr); // has been moved from
     }
 
+    {
+    typedef std::unique_ptr<int> upint;
+    const std::pair<upint, int> t(upint(new int(4)), 42);
+    const upint&& p = std::get<0>(std::move(t)); // get const rvalue
+    assert(*p == 4);
+    assert(std::get<0>(t) != nullptr);
+    }
+
 #endif
 }