diff --git a/libcxx/include/CMakeLists.txt b/libcxx/include/CMakeLists.txt
--- a/libcxx/include/CMakeLists.txt
+++ b/libcxx/include/CMakeLists.txt
@@ -51,6 +51,7 @@
   __ranges/empty_view.h
   __ranges/enable_borrowed_range.h
   __ranges/view_interface.h
+  __ranges/non_propagating_cache.h
   __ranges/view.h
   __ranges/size.h
   __split_buffer
diff --git a/libcxx/include/__ranges/non_propagating_cache.h b/libcxx/include/__ranges/non_propagating_cache.h
new file mode 100644
--- /dev/null
+++ b/libcxx/include/__ranges/non_propagating_cache.h
@@ -0,0 +1,74 @@
+// -*- C++ -*-
+//===--------------------- __ranges/concepts.h ----------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+#ifndef _LIBCPP___RANGES_NON_PROPAGATING_CACHE_H
+#define _LIBCPP___RANGES_NON_PROPAGATING_CACHE_H
+
+#include <__config>
+#include <__iterator/concepts.h>        // indirectly_readable
+#include <__iterator/iterator_traits.h> // iter_reference_t
+#include <concepts>                     // constructible_from
+#include <memory>
+#include <optional>
+#include <type_traits>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#pragma GCC system_header
+#endif
+
+_LIBCPP_PUSH_MACROS
+#include <__undef_macros>
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+// clang-format off
+
+#if !defined(_LIBCPP_HAS_NO_RANGES)
+
+namespace ranges {
+  template<class _Tp, bool __enable_cache>
+  requires is_object_v<_Tp>
+  struct __non_propagating_cache : optional<_Tp> {
+    using optional<_Tp>::optional;
+    inline static constexpr bool cache_enabled = true;
+
+    constexpr __non_propagating_cache(const __non_propagating_cache&) noexcept {}
+
+    constexpr __non_propagating_cache(__non_propagating_cache&& __other) noexcept {
+      __other.reset();
+    }
+
+    constexpr __non_propagating_cache& operator=(const __non_propagating_cache& __other) noexcept {
+      if (_VSTD::addressof(__other) != this) {
+        optional<_Tp>::reset();
+      }
+
+      return *this;
+    }
+
+    constexpr __non_propagating_cache& operator=(__non_propagating_cache&& __other) noexcept {
+      optional<_Tp>::reset();
+      __other.reset();
+      return *this;
+    }
+  };
+
+  template<class _Tp>
+  requires is_object_v<_Tp>
+  struct __non_propagating_cache<_Tp, false> {
+    inline static constexpr bool cache_enabled = false;
+  };
+} // namespace ranges
+
+#endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_RANGES)
+
+_LIBCPP_END_NAMESPACE_STD
+
+_LIBCPP_POP_MACROS
+
+#endif // _LIBCPP___RANGES_NON_PROPAGATING_CACHE_H
diff --git a/libcxx/test/libcxx/ranges/range.nonprop.cache/cache_disabled.compile.pass.cpp b/libcxx/test/libcxx/ranges/range.nonprop.cache/cache_disabled.compile.pass.cpp
new file mode 100644
--- /dev/null
+++ b/libcxx/test/libcxx/ranges/range.nonprop.cache/cache_disabled.compile.pass.cpp
@@ -0,0 +1,21 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14, c++17
+// UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: gcc-10
+
+// std::ranges::__non_propagating_cache<T, false>
+
+#include <__ranges/non_propagating_cache.h>
+
+#include <array>
+#include <type_traits>
+
+static_assert(std::is_empty_v<std::ranges::__non_propagating_cache<std::array<int, 10>, false> >);
+static_assert(std::is_empty_v<std::ranges::__non_propagating_cache<std::array<int, 10>::iterator, false> >);
diff --git a/libcxx/test/libcxx/ranges/range.nonprop.cache/copy_assign.pass.cpp b/libcxx/test/libcxx/ranges/range.nonprop.cache/copy_assign.pass.cpp
new file mode 100644
--- /dev/null
+++ b/libcxx/test/libcxx/ranges/range.nonprop.cache/copy_assign.pass.cpp
@@ -0,0 +1,37 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14, c++17
+// UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: gcc-10
+
+// __non_propagating_cache& __non_propagating_cache::operator=(__non_propagating_cache const&);
+
+#include <__ranges/non_propagating_cache.h>
+
+#include <array>
+#include <cassert>
+
+#include "test_macros.h"
+
+constexpr bool check_copy_assign() {
+  auto x = std::ranges::__non_propagating_cache<std::array<int, 5>, true>({0, 1, 2, 3, 4});
+  auto y = std::ranges::__non_propagating_cache<std::array<int, 5>, true>({5, 6, 7, 8, 9});
+  x = y;
+  assert(!x.has_value());
+  assert(y.has_value());
+  assert((y.value() == std::array<int, 5>{5, 6, 7, 8, 9}));
+  return true;
+}
+
+int main(int, char**) {
+  static_assert(std::is_nothrow_copy_assignable_v<std::ranges::__non_propagating_cache<std::array<int, 10>, true> >);
+  static_assert(check_copy_assign());
+  check_copy_assign();
+  return 0;
+}
diff --git a/libcxx/test/libcxx/ranges/range.nonprop.cache/copy_ctor.pass.cpp b/libcxx/test/libcxx/ranges/range.nonprop.cache/copy_ctor.pass.cpp
new file mode 100644
--- /dev/null
+++ b/libcxx/test/libcxx/ranges/range.nonprop.cache/copy_ctor.pass.cpp
@@ -0,0 +1,36 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14, c++17
+// UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: gcc-10
+
+// __non_propagating_cache(__non_propagating_cache const&);
+
+#include <__ranges/non_propagating_cache.h>
+
+#include <array>
+#include <cassert>
+
+#include "test_macros.h"
+
+constexpr bool check_copy_ctor() {
+  auto x = std::ranges::__non_propagating_cache<std::array<int, 5>, true>({0, 1, 2, 3, 4});
+  auto y = x;
+  assert(x.has_value());
+  assert((x.value() == std::array<int, 5>{0, 1, 2, 3, 4}));
+  assert(!y.has_value());
+  return true;
+}
+
+int main(int, char**) {
+  static_assert(std::is_nothrow_copy_constructible_v<std::ranges::__non_propagating_cache<std::array<int, 10>, true> >);
+  static_assert(check_copy_ctor());
+  check_copy_ctor();
+  return 0;
+}
diff --git a/libcxx/test/libcxx/ranges/range.nonprop.cache/move_assign.pass.cpp b/libcxx/test/libcxx/ranges/range.nonprop.cache/move_assign.pass.cpp
new file mode 100644
--- /dev/null
+++ b/libcxx/test/libcxx/ranges/range.nonprop.cache/move_assign.pass.cpp
@@ -0,0 +1,35 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14, c++17
+// UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: gcc-10
+
+// __non_propagating_cache& __non_propagating_cache::operator=(__non_propagating_cache&&);
+
+#include <__ranges/non_propagating_cache.h>
+
+#include <array>
+#include <cassert>
+#include <utility>
+
+#include "test_macros.h"
+
+constexpr bool check_move_assign() {
+  auto x = std::ranges::__non_propagating_cache<std::array<int, 5>, true>({0, 1, 2, 3, 4});
+  auto y = std::ranges::__non_propagating_cache<std::array<int, 5>, true>({5, 6, 7, 8, 9});
+  x = std::move(y);
+  return !x && !y;
+}
+
+int main(int, char**) {
+  static_assert(std::is_nothrow_move_assignable_v<std::ranges::__non_propagating_cache<std::array<int, 10>, true> >);
+  static_assert(check_move_assign());
+  assert(check_move_assign());
+  return 0;
+}
diff --git a/libcxx/test/libcxx/ranges/range.nonprop.cache/move_ctor.pass.cpp b/libcxx/test/libcxx/ranges/range.nonprop.cache/move_ctor.pass.cpp
new file mode 100644
--- /dev/null
+++ b/libcxx/test/libcxx/ranges/range.nonprop.cache/move_ctor.pass.cpp
@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++03, c++11, c++14, c++17
+// UNSUPPORTED: libcpp-no-concepts
+// UNSUPPORTED: gcc-10
+
+// __non_propagating_cache(__non_propagating_cache&&);
+
+#include <__ranges/non_propagating_cache.h>
+
+#include <array>
+#include <cassert>
+#include <utility>
+
+#include "test_macros.h"
+
+constexpr bool check_move_ctor() {
+  auto x = std::ranges::__non_propagating_cache<std::array<int, 5>, true>({0, 1, 2, 3, 4});
+  auto y = std::move(x);
+  return !x && !y;
+}
+
+int main(int, char**) {
+  static_assert(std::is_nothrow_move_constructible_v<std::ranges::__non_propagating_cache<std::array<int, 10>, true> >);
+  static_assert(check_move_ctor());
+  assert(check_move_ctor());
+  return 0;
+}