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//===----------------------------------------------------------------------===//
//
// 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
// <experimental/simd>
//
// Note: To ensure the swap functions can be called directly in the std::experimental namespace,
// the implementation approach might not fully align with the specification.
//
// [simd.reference]
// friend void swap(reference&& a, reference&& b) noexcept;
// friend void swap(value_type& a, reference&& b) noexcept;
// friend void swap(reference&& a, value_type& b) noexcept;
#include "../test_utils.h"
#include <experimental/simd>
namespace ex = std::experimental::parallelism_v2;
template <class T, std::size_t>
struct CheckSimdRefSwap {
template <class SimdAbi>
void operator()() {
ex::simd<T, SimdAbi> origin_simd_1(1);
ex::simd<T, SimdAbi> origin_simd_2(2);
T value = 3;
static_assert(noexcept(ex::swap(std::move(origin_simd_1[0]), std::move(origin_simd_2[0]))));
ex::swap(std::move(origin_simd_1[0]), std::move(origin_simd_2[0]));
assert((origin_simd_1[0] == 2) && (origin_simd_2[0] == 1));
static_assert(noexcept(ex::swap(std::move(origin_simd_1[0]), value)));
ex::swap(std::move(origin_simd_1[0]), value);
assert((origin_simd_1[0] == 3) && (value == 2));
static_assert(noexcept(ex::swap(value, std::move(origin_simd_2[0]))));
ex::swap(value, std::move(origin_simd_2[0]));
assert((value == 1) && (origin_simd_2[0] == 2));
}
};
template <class T, std::size_t>
struct CheckMaskRefSwap {
template <class SimdAbi>
void operator()() {
ex::simd_mask<T, SimdAbi> origin_mask_1(true);
ex::simd_mask<T, SimdAbi> origin_mask_2(false);
bool value = true;
static_assert(noexcept(ex::swap(std::move(origin_mask_1[0]), std::move(origin_mask_2[0]))));
ex::swap(std::move(origin_mask_1[0]), std::move(origin_mask_2[0]));
assert((origin_mask_1[0] == false) && (origin_mask_2[0] == true));
static_assert(noexcept(ex::swap(std::move(origin_mask_1[0]), value)));
ex::swap(std::move(origin_mask_1[0]), value);
assert((origin_mask_1[0] == true) && (value == false));
static_assert(noexcept(ex::swap(value, std::move(origin_mask_2[0]))));
ex::swap(value, std::move(origin_mask_2[0]));
assert((value == true) && (origin_mask_2[0] == false));
}
};
int main(int, char**) {
test_all_simd_abi<CheckSimdRefSwap>();
test_all_simd_abi<CheckMaskRefSwap>();
return 0;
}
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