[libc++] Bump AppleClang compiler requirement

[ldionne]

Summary

Per our policy, the latest released AppleClang has been 14 for a while,
so libc++ is removing support for AppleClang 13. Our CI bots have been
moved to AppleClang 14 a few weeks ago.

[ldionne]

Missed change.

[Mordante]

libcxx/test/std/utilities/format/format.functions/format.locale.pass.cpp

14

Nice to see it was really an AppleClang bug!

libcxx/docs/index.rst

 Libc++ aims to support common compilers that implement the C++11 Standard. In order to strike a
 good balance between stability for users and maintenance cost, testing coverage and development
 velocity, libc++ drops support for older compilers as newer ones are released.
 
 ============ =============== ========================== =====================
 Compiler     Versions        Restrictions               Support policy
 ============ =============== ========================== =====================
 Clang        14, 15                                     latest two stable releases per `LLVM's release page <https://releases.llvm.org>`_
-AppleClang   13                                         latest stable release per `Xcode's release page <https://developer.apple.com/documentation/xcode-release-notes>`_
+AppleClang   14                                         latest stable release per `Xcode's release page <https://developer.apple.com/documentation/xcode-release-notes>`_
 Open XL      17.1 (AIX)                                 latest stable release per `Open XL's documentation page <https://www.ibm.com/docs/en/openxl-c-and-cpp-aix>`_
 GCC          12              In C++11 or later only     latest stable release per `GCC's release page <https://gcc.gnu.org/releases.html>`_
 ============ =============== ========================== =====================
 
 Libc++ also supports common platforms and architectures:
 
 =============== ========================= ============================
 Target platform Target architecture       Notes

libcxx/include/__type_traits/is_unsigned.h

 #include <__type_traits/is_integral.h>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header
 #endif
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-// Before AppleClang 14, __is_unsigned returned true for enums with signed underlying type.
-#if __has_builtin(__is_unsigned) && !(defined(_LIBCPP_APPLE_CLANG_VER) && _LIBCPP_APPLE_CLANG_VER < 1400)
+#if __has_builtin(__is_unsigned)
 
 template<class _Tp>
 struct _LIBCPP_TEMPLATE_VIS is_unsigned : _BoolConstant<__is_unsigned(_Tp)> { };
 
 #if _LIBCPP_STD_VER > 14
 template <class _Tp>
 inline constexpr bool is_unsigned_v = __is_unsigned(_Tp);
 #endif

libcxx/test/libcxx/atomics/bit-int.verify.cpp

 //===----------------------------------------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 
 // <atomic>
 
 // Make sure that `std::atomic` doesn't work with `_BitInt`. The intent is to
 // disable them for now until their behavior can be designed better later.
 // See https://reviews.llvm.org/D84049 for details.
 
-// UNSUPPORTED: apple-clang-13, apple-clang-14
+// UNSUPPORTED: apple-clang-14
 
 // UNSUPPORTED: c++03
 
 #include <atomic>
 
 int main(int, char**)
 {
   // expected-error@atomic:*1 {{_Atomic cannot be applied to integer type '_BitInt(32)'}}
   std::atomic<_BitInt(32)> x(42);
 
   return 0;
 }

libcxx/test/libcxx/experimental/fexperimental-library.compile.pass.cpp

 
 // GCC does not support the -fexperimental-library flag
 // UNSUPPORTED: gcc
 
 // Clang does not support the -fexperimental-library flag before LLVM 15.0
 // UNSUPPORTED: clang-14
 
 // AppleClang does not support the -fexperimental-library flag yet
-// UNSUPPORTED: apple-clang-13, apple-clang-14.0
+// UNSUPPORTED: apple-clang-14.0
 
 // Clang on AIX currently pretends that it is Clang 15, even though it is not (as of writing
 // this, LLVM 15 hasn't even been branched yet).
 // UNSUPPORTED: clang-15 && buildhost=aix
 
 // ADDITIONAL_COMPILE_FLAGS: -fexperimental-library
 
 #include <version>
 
 #ifdef _LIBCPP_HAS_NO_INCOMPLETE_FORMAT
 #   error "-fexperimental-library should enable <format>"
 #endif

libcxx/test/libcxx/transitive_includes.sh.cpp

 
 // When built with modules, this test doesn't work because --trace-includes doesn't
 // report the stack of includes correctly.
 // UNSUPPORTED: modules-build
 
 // This test uses --trace-includes, which is not supported by GCC.
 // UNSUPPORTED: gcc
 
-// This test uses -fshow-skipped-includes, which isn't supported on older Clangs
-// UNSUPPORTED: apple-clang-13
-
 // This test doesn't work on AIX, but it should. Needs investigation.
 // XFAIL: buildhost=aix
 
 // This test is not supported when we remove the transitive includes provided for backwards
 // compatibility. When we bulk-remove them, we'll adjust the includes that are expected by
 // this test instead.
 // UNSUPPORTED: transitive-includes-disabled
 

libcxx/test/std/algorithms/alg.sorting/alg.clamp/ranges.clamp.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // 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
 //
 //===----------------------------------------------------------------------===//
 
 // <algorithm>
 
 // UNSUPPORTED: c++03, c++11, c++14, c++17
 
-// Older Clangs don't properly deduce decltype(auto) with a concept constraint
-// XFAIL: apple-clang-13.0
-
 // template<class T, class Proj = identity,
 //          indirect_strict_weak_order<projected<const T*, Proj>> Comp = ranges::less>
 //   constexpr const T&
 //     ranges::clamp(const T& v, const T& lo, const T& hi, Comp comp = {}, Proj proj = {});
 
 #include <algorithm>
 #include <cassert>
 #include <concepts>

libcxx/test/std/ranges/range.adaptors/range.filter/pred.pass.cpp

 //===----------------------------------------------------------------------===//
 //
 // 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
 
-// Older Clangs don't properly deduce decltype(auto) with a concept constraint
-// XFAIL: apple-clang-13.0
-
 // constexpr Pred const& pred() const;
 
 #include <ranges>
 
 #include <cassert>
 #include <concepts>
 
 struct Range : std::ranges::view_base {

libcxx/test/std/utilities/format/format.functions/format.locale.pass.cpp

 //===----------------------------------------------------------------------===//
 // 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: no-localization
 // UNSUPPORTED: libcpp-has-no-incomplete-format
 // TODO FMT Evaluate gcc-12 status
 // UNSUPPORTED:gcc-12
-// TODO FMT Investigate AppleClang ICE
-// UNSUPPORTED: apple-clang-13
 
 // <format>
 
 // template<class... Args>
 //   string format(const locale& loc, format-string<Args...> fmt, const Args&... args);
 // template<class... Args>
 //   wstring format(const locale& loc, wformat-string<Args...> fmt, const Args&... args);
 

libcxx/test/std/utilities/format/format.functions/format.pass.cpp

 //===----------------------------------------------------------------------===//
 // 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-has-no-incomplete-format
 // TODO FMT Evaluate gcc-12 status
 // UNSUPPORTED: gcc-12
-// TODO FMT Investigate AppleClang ICE
-// UNSUPPORTED: apple-clang-13
 
 // Note this formatter shows additional information when tests are failing.
 // This aids the development. Since other formatters fail in the same fashion
 // they don't have this additional output.
 
 // <format>
 
 // template<class... Args>

libcxx/test/std/utilities/format/format.functions/format_to.locale.pass.cpp

 //===----------------------------------------------------------------------===//
 // 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: no-localization
 // UNSUPPORTED: libcpp-has-no-incomplete-format
 // TODO FMT Evaluate gcc-12 status
 // UNSUPPORTED: gcc-12
-// TODO FMT Investigate AppleClang ICE
-// UNSUPPORTED: apple-clang-13
 
 // <format>
 
 // template<class Out, class... Args>
 //   Out format_to(Out out, const locale& loc,
 //                 format-string<Args...> fmt, const Args&... args);
 // template<class Out, class... Args>
 //   Out format_to(Out out, const locale& loc,

libcxx/test/std/utilities/format/format.functions/format_to.pass.cpp

 //===----------------------------------------------------------------------===//
 // 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-has-no-incomplete-format
 // TODO FMT Evaluate gcc-12 status
 // UNSUPPORTED: gcc-12
-// TODO FMT Investigate AppleClang ICE
-// UNSUPPORTED: apple-clang-13
 
 // <format>
 
 // template<class Out, class... Args>
 //   Out format_to(Out out, format-string<Args...> fmt, const Args&... args);
 // template<class Out, class... Args>
 //   Out format_to(Out out, wformat-string<Args...> fmt, const Args&... args);
 

libcxx/test/std/utilities/format/format.functions/format_to_n.locale.pass.cpp

 //===----------------------------------------------------------------------===//
 // 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: no-localization
 // UNSUPPORTED: libcpp-has-no-incomplete-format
 // TODO FMT Evaluate gcc-12 status
 // UNSUPPORTED: gcc-12
-// TODO FMT Investigate AppleClang ICE
-// UNSUPPORTED: apple-clang-13
 
 // <format>
 
 // template<class Out, class... Args>
 //   format_to_n_result<Out> format_to_n(Out out, iter_difference_t<Out> n,
 //                                       const locale& loc, format-string<Args...> fmt,
 //                                       const Args&... args);
 // template<class Out, class... Args>

libcxx/test/std/utilities/format/format.functions/format_to_n.pass.cpp

 //===----------------------------------------------------------------------===//
 // 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-has-no-incomplete-format
 // TODO FMT Evaluate gcc-12 status
 // UNSUPPORTED: gcc-12
-// TODO FMT Investigate AppleClang ICE
-// UNSUPPORTED: apple-clang-13
 
 // <format>
 
 // template<class Out, class... Args>
 //   format_to_n_result<Out> format_to_n(Out out, iter_difference_t<Out> n,
 //                                       format-string<Args...> fmt, const Args&... args);
 // template<class Out, class... Args>
 //   format_to_n_result<Out> format_to_n(Out out, iter_difference_t<Out> n,

libcxx/test/std/utilities/format/format.functions/formatted_size.locale.pass.cpp

 //===----------------------------------------------------------------------===//
 // 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: no-localization
 // UNSUPPORTED: libcpp-has-no-incomplete-format
 // TODO FMT Evaluate gcc-12 status
 // UNSUPPORTED: gcc-12
-// TODO FMT Investigate AppleClang ICE
-// UNSUPPORTED: apple-clang-13
 
 // <format>
 
 // template<class... Args>
 //   size_t formatted_size(const locale& loc,
 //                         format-string<Args...> fmt, const Args&... args);
 // template<class... Args>
 //   size_t formatted_size(const locale& loc,

libcxx/test/std/utilities/format/format.functions/formatted_size.pass.cpp

 //===----------------------------------------------------------------------===//
 // 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-has-no-incomplete-format
 // TODO FMT Evaluate gcc-12 status
 // UNSUPPORTED: gcc-12
-// TODO FMT Investigate AppleClang ICE
-// UNSUPPORTED: apple-clang-13
 
 // <format>
 
 // template<class... Args>
 //   size_t formatted_size(format-string<Args...> fmt, const Args&... args);
 // template<class... Args>
 //   size_t formatted_size(wformat-string<Args...> fmt, const Args&... args);
 

libcxx/test/std/utilities/format/format.functions/vformat.locale.pass.cpp

 //===----------------------------------------------------------------------===//
 // 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: no-localization
 // UNSUPPORTED: libcpp-has-no-incomplete-format
 // TODO FMT Evaluate gcc-12 status
 // UNSUPPORTED: gcc-12
-// TODO FMT Investigate AppleClang ICE
-// UNSUPPORTED: apple-clang-13
 
 // <format>
 
 // string vformat(const locale& loc, string_view fmt, format_args args);
 // wstring vformat(const locale& loc, wstring_view fmt, wformat_args args);
 
 #include <format>
 #include <cassert>

libcxx/test/std/utilities/format/format.functions/vformat.pass.cpp

 //===----------------------------------------------------------------------===//
 // 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-has-no-incomplete-format
 // TODO FMT Evaluate gcc-12 status
 // UNSUPPORTED: gcc-12
-// TODO FMT Investigate AppleClang ICE
-// UNSUPPORTED: apple-clang-13
 
 // <format>
 
 // string vformat(string_view fmt, format_args args);
 // wstring vformat(wstring_view fmt, wformat_args args);
 
 #include <format>
 #include <cassert>

libcxx/test/std/utilities/format/format.functions/vformat_to.locale.pass.cpp

 //===----------------------------------------------------------------------===//
 // 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: no-localization
 // UNSUPPORTED: libcpp-has-no-incomplete-format
 // TODO FMT Evaluate gcc-12 status
 // UNSUPPORTED: gcc-12
-// TODO FMT Investigate AppleClang ICE
-// UNSUPPORTED: apple-clang-13
 
 // <format>
 
 // template<class Out>
 //   Out vformat_to(Out out, const locale& loc, string_view fmt,
 //                  format_args args);
 // template<class Out>
 //    Out vformat_to(Out out, const locale& loc, wstring_view fmt,

libcxx/test/std/utilities/format/format.functions/vformat_to.pass.cpp

 //===----------------------------------------------------------------------===//
 // 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-has-no-incomplete-format
 // TODO FMT Evaluate gcc-12 status
 // UNSUPPORTED: gcc-12
-// TODO FMT Investigate AppleClang ICE
-// UNSUPPORTED: apple-clang-13
 
 // <format>
 
 // template<class Out>
 //   Out vformat_to(Out out, string_view fmt, format_args args);
 // template<class Out>
 //    Out vformat_to(Out out, wstring_view fmt, wformat_args_t args);