diff --git a/libcxx/test/std/concepts/concepts.lang/concept.swappable/cpo.compile.pass.cpp b/libcxx/test/std/concepts/concepts.lang/concept.swappable/cpo.compile.pass.cpp
new file mode 100644
--- /dev/null
+++ b/libcxx/test/std/concepts/concepts.lang/concept.swappable/cpo.compile.pass.cpp
@@ -0,0 +1,16 @@
+//===----------------------------------------------------------------------===//
+//
+// 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
+
+#include <concepts>
+
+#include "customization_point_object.h"
+
+static_assert(customization_point_object<decltype(std::ranges::swap)>);
diff --git a/libcxx/test/std/iterators/predef.iterators/iterators.common/cpo.compile.pass.cpp b/libcxx/test/std/iterators/predef.iterators/iterators.common/cpo.compile.pass.cpp
new file mode 100644
--- /dev/null
+++ b/libcxx/test/std/iterators/predef.iterators/iterators.common/cpo.compile.pass.cpp
@@ -0,0 +1,17 @@
+//===----------------------------------------------------------------------===//
+//
+// 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, libcpp-has-no-incomplete-ranges
+
+#include <iterator>
+
+#include "customization_point_object.h"
+
+static_assert(customization_point_object<decltype(std::ranges::iter_swap)>);
+static_assert(customization_point_object<decltype(std::ranges::iter_move)>);
diff --git a/libcxx/test/std/language.support/cmp/cmp.alg/cpo.compile.pass.cpp b/libcxx/test/std/language.support/cmp/cmp.alg/cpo.compile.pass.cpp
new file mode 100644
--- /dev/null
+++ b/libcxx/test/std/language.support/cmp/cmp.alg/cpo.compile.pass.cpp
@@ -0,0 +1,18 @@
+//===----------------------------------------------------------------------===//
+//
+// 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
+
+#include <compare>
+
+#include "customization_point_object.h"
+
+static_assert(customization_point_object<decltype(std::partial_order)>);
+static_assert(customization_point_object<decltype(std::strong_order)>);
+static_assert(customization_point_object<decltype(std::weak_order)>);
diff --git a/libcxx/test/std/ranges/range.access/cpo.compile.pass.cpp b/libcxx/test/std/ranges/range.access/cpo.compile.pass.cpp
new file mode 100644
--- /dev/null
+++ b/libcxx/test/std/ranges/range.access/cpo.compile.pass.cpp
@@ -0,0 +1,22 @@
+//===----------------------------------------------------------------------===//
+//
+// 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, libcpp-has-no-incomplete-ranges
+
+#include <ranges>
+
+#include "customization_point_object.h"
+
+static_assert(customization_point_object<decltype(std::ranges::begin)>);
+static_assert(customization_point_object<decltype(std::ranges::cbegin)>);
+static_assert(customization_point_object<decltype(std::ranges::cend)>);
+static_assert(customization_point_object<decltype(std::ranges::end)>);
+static_assert(customization_point_object<decltype(std::ranges::data)>);
+static_assert(customization_point_object<decltype(std::ranges::empty)>);
+static_assert(customization_point_object<decltype(std::ranges::size)>);
diff --git a/libcxx/test/std/ranges/range.adaptors/range.all/cpo.compile.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.all/cpo.compile.pass.cpp
new file mode 100644
--- /dev/null
+++ b/libcxx/test/std/ranges/range.adaptors/range.all/cpo.compile.pass.cpp
@@ -0,0 +1,16 @@
+//===----------------------------------------------------------------------===//
+//
+// 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, libcpp-has-no-incomplete-ranges
+
+#include <ranges>
+
+#include "customization_point_object.h"
+
+static_assert(customization_point_object<decltype(std::ranges::views::all)>);
diff --git a/libcxx/test/std/ranges/range.adaptors/range.common.view/cpo.compile.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.common.view/cpo.compile.pass.cpp
new file mode 100644
--- /dev/null
+++ b/libcxx/test/std/ranges/range.adaptors/range.common.view/cpo.compile.pass.cpp
@@ -0,0 +1,16 @@
+//===----------------------------------------------------------------------===//
+//
+// 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, libcpp-has-no-incomplete-ranges
+
+#include <ranges>
+
+#include "customization_point_object.h"
+
+static_assert(customization_point_object<decltype(std::ranges::views::common)>);
diff --git a/libcxx/test/std/ranges/range.adaptors/range.counted/cpo.compile.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.counted/cpo.compile.pass.cpp
new file mode 100644
--- /dev/null
+++ b/libcxx/test/std/ranges/range.adaptors/range.counted/cpo.compile.pass.cpp
@@ -0,0 +1,16 @@
+//===----------------------------------------------------------------------===//
+//
+// 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, libcpp-has-no-incomplete-ranges
+
+#include <ranges>
+
+#include "customization_point_object.h"
+
+static_assert(customization_point_object<decltype(std::views::counted)>);
diff --git a/libcxx/test/std/ranges/range.adaptors/range.reverse/cpo.compile.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.reverse/cpo.compile.pass.cpp
new file mode 100644
--- /dev/null
+++ b/libcxx/test/std/ranges/range.adaptors/range.reverse/cpo.compile.pass.cpp
@@ -0,0 +1,16 @@
+//===----------------------------------------------------------------------===//
+//
+// 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, libcpp-has-no-incomplete-ranges
+
+#include <ranges>
+
+#include "customization_point_object.h"
+
+static_assert(customization_point_object<decltype(std::ranges::views::reverse)>);
diff --git a/libcxx/test/std/ranges/range.adaptors/range.transform/cpo.compile.pass.cpp b/libcxx/test/std/ranges/range.adaptors/range.transform/cpo.compile.pass.cpp
new file mode 100644
--- /dev/null
+++ b/libcxx/test/std/ranges/range.adaptors/range.transform/cpo.compile.pass.cpp
@@ -0,0 +1,16 @@
+//===----------------------------------------------------------------------===//
+//
+// 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, libcpp-has-no-incomplete-ranges
+
+#include <ranges>
+
+#include "customization_point_object.h"
+
+static_assert(customization_point_object<decltype(std::ranges::views::transform)>);
diff --git a/libcxx/test/std/ranges/range.factories/range.iota.view/cpo.compile.pass.cpp b/libcxx/test/std/ranges/range.factories/range.iota.view/cpo.compile.pass.cpp
new file mode 100644
--- /dev/null
+++ b/libcxx/test/std/ranges/range.factories/range.iota.view/cpo.compile.pass.cpp
@@ -0,0 +1,16 @@
+//===----------------------------------------------------------------------===//
+//
+// 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, libcpp-has-no-incomplete-ranges
+
+#include <ranges>
+
+#include "customization_point_object.h"
+
+static_assert(customization_point_object<decltype(std::ranges::views::iota)>);
diff --git a/libcxx/test/support/customization_point_object.h b/libcxx/test/support/customization_point_object.h
new file mode 100644
--- /dev/null
+++ b/libcxx/test/support/customization_point_object.h
@@ -0,0 +1,19 @@
+//===----------------------------------------------------------------------===//
+//
+// 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 TEST_SUPPORT_CUSTOMIZATION_POINT_OBJECT_H
+#define TEST_SUPPORT_CUSTOMIZATION_POINT_OBJECT_H
+
+#include <concepts>
+#include <type_traits>
+
+// Test for basic properties of C++20 16.3.3.3.6 [customization.point.object].
+template <class T>
+concept customization_point_object =
+    (std::is_class_v<T> || std::is_union_v<T>)&&__is_literal_type(T) && std::semiregular<std::remove_cv_t<T>>;
+
+#endif // TEST_SUPPORT_CUSTOMIZATION_POINT_OBJECT_H