6808e6c78e
This speeds up the CI a bit (anecdotally ~10%) for those jobs, and it also helps ensure that we are clean w.r.t. Clang modules when we disable some of the carve-outs like no-localization or no-threads.
41 lines
1.0 KiB
C++
41 lines
1.0 KiB
C++
//
|
|
// 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
|
|
|
|
// static constexpr size_t required_alignment;
|
|
|
|
#include <atomic>
|
|
#include <cassert>
|
|
#include <concepts>
|
|
#include <cstddef>
|
|
|
|
template <typename T>
|
|
constexpr void check_required_alignment() {
|
|
std::same_as<const std::size_t> decltype(auto) required_alignment = std::atomic_ref<T>::required_alignment;
|
|
assert(required_alignment >= alignof(T));
|
|
}
|
|
|
|
constexpr bool test() {
|
|
check_required_alignment<int>();
|
|
check_required_alignment<float>();
|
|
check_required_alignment<int*>();
|
|
struct Empty {};
|
|
check_required_alignment<Empty>();
|
|
struct Trivial {
|
|
int a;
|
|
};
|
|
check_required_alignment<Trivial>();
|
|
return true;
|
|
}
|
|
|
|
int main(int, char**) {
|
|
test();
|
|
static_assert(test());
|
|
return 0;
|
|
}
|