Index: libcxx/include/__config =================================================================== --- libcxx/include/__config +++ libcxx/include/__config @@ -988,6 +988,11 @@ # endif #endif // defined(__APPLE__) +#if !defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION) && \ + !defined(_LIBCPP_BUILDING_LIBRARY) && \ + (!defined(__cpp_aligned_new) || __cpp_aligned_new < 201606) +# define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION +#endif #if defined(__APPLE__) || defined(__FreeBSD__) #define _LIBCPP_HAS_DEFAULTRUNELOCALE Index: libcxx/include/new =================================================================== --- libcxx/include/new +++ libcxx/include/new @@ -108,13 +108,6 @@ # define _LIBCPP_HAS_NO_SIZED_DEALLOCATION #endif -#if !defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION) && \ - (!(defined(_LIBCPP_BUILDING_LIBRARY) || _LIBCPP_STD_VER > 14 || \ - (defined(__cpp_aligned_new) && __cpp_aligned_new >= 201606))) -# define _LIBCPP_HAS_NO_ALIGNED_ALLOCATION -#endif - - #if !__has_builtin(__builtin_operator_new) || \ __has_builtin(__builtin_operator_new) < 201802L || \ defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION) || \ Index: libcxx/test/libcxx/memory/aligned_allocation_macro.pass.cpp =================================================================== --- /dev/null +++ libcxx/test/libcxx/memory/aligned_allocation_macro.pass.cpp @@ -0,0 +1,25 @@ +//===----------------------------------------------------------------------===// +// +// 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. +// +//===----------------------------------------------------------------------===// + +// UNSUPPORTED: c++98, c++03, c++11, c++14 +// XFAIL: with_system_cxx_lib=macosx10.12 +// XFAIL: with_system_cxx_lib=macosx10.11 +// XFAIL: with_system_cxx_lib=macosx10.10 +// XFAIL: with_system_cxx_lib=macosx10.9 +// XFAIL: with_system_cxx_lib=macosx10.8 +// XFAIL: with_system_cxx_lib=macosx10.7 + +#include + + +#ifdef _LIBCPP_HAS_NO_ALIGNED_ALLOCATION +# error "libc++ should have aligned allocation in C++17 and up when targeting a platform that supports it" +#endif + +int main() { }