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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>
//
// [simd.traits]
//template <class T, class Abi = simd_abi::compatible<T>> struct simd_size;
//template <class T, class Abi = simd_abi::compatible<T>>
//inline constexpr std::size_t ex::simd_size_v = ex::simd_size<T, Abi>::value;
#include "../test_utils.h"
namespace ex = std::experimental::parallelism_v2;
struct CheckSimdSizeFixedDeduce {
template <class T, std::size_t N>
void check() {
static_assert(ex::simd_size_v<T, ex::simd_abi::fixed_size<N>> == N, "Simd size mismatch with abi fixed_size");
static_assert(ex::simd_size<T, ex::simd_abi::fixed_size<N>>::value == N, "Simd size mismatch with abi fixed_size");
static_assert(ex::simd_size_v<T, ex::simd_abi::deduce_t<T, N>> == N, "Simd size mismatch with abi deduce");
static_assert(ex::simd_size<T, ex::simd_abi::deduce_t<T, N>>::value == N, "Simd size mismatch with abi deduce");
}
template <class T, std::size_t... N>
void performChecks(std::index_sequence<N...>) {
(check<T, N + 1>(), ...);
}
template <class T>
void operator()() {
performChecks<T>(std::make_index_sequence<max_simd_size>{});
}
};
struct CheckSimdSizeScalarNativeCompatible {
template <class T>
void operator()() {
static_assert(ex::simd_size_v<T, ex::simd_abi::scalar> == 1);
static_assert(ex::simd_size<T, ex::simd_abi::scalar>::value == 1);
LIBCPP_STATIC_ASSERT(ex::simd_size<T, ex::simd_abi::compatible<T>>::value == 16 / sizeof(T));
LIBCPP_STATIC_ASSERT(ex::simd_size_v<T, ex::simd_abi::compatible<T>> == 16 / sizeof(T));
LIBCPP_STATIC_ASSERT(
ex::simd_size<T, ex::simd_abi::native<T>>::value == _LIBCPP_NATIVE_SIMD_WIDTH_IN_BYTES / sizeof(T));
LIBCPP_STATIC_ASSERT(ex::simd_size_v<T, ex::simd_abi::native<T>> == _LIBCPP_NATIVE_SIMD_WIDTH_IN_BYTES / sizeof(T));
}
};
template <class T, class Abi = ex::simd_abi::compatible<T>, class = void>
struct has_simd_size : std::false_type {};
template <class T, class Abi>
struct has_simd_size<T, Abi, std::void_t<decltype(ex::simd_size<T, Abi>::value)>> : std::true_type {};
struct CheckSimdSizeTraits {
template <class T>
void operator()() {
static_assert(has_simd_size<T>::value);
static_assert(!has_simd_size<ex::native_simd<T>>::value);
static_assert(has_simd_size<T, ex::simd_abi::scalar>::value);
static_assert(has_simd_size<T, ex::simd_abi::fixed_size<4>>::value);
static_assert(has_simd_size<T, ex::simd_abi::native<T>>::value);
static_assert(has_simd_size<T, ex::simd_abi::compatible<T>>::value);
static_assert(!has_simd_size<ex::simd_abi::native<T>, ex::simd_abi::native<T>>::value);
static_assert(!has_simd_size<ex::native_simd<T>, ex::simd_abi::native<T>>::value);
static_assert(!has_simd_size<ex::fixed_size_simd<T, 3>, ex::simd_abi::native<T>>::value);
static_assert(!has_simd_size<ex::fixed_size_simd_mask<T, 4>, ex::simd_abi::native<T>>::value);
static_assert(!has_simd_size<T, T>::value);
static_assert(!has_simd_size<T, ex::native_simd<T>>::value);
static_assert(!has_simd_size<T, ex::fixed_size_simd<T, 3>>::value);
static_assert(!has_simd_size<T, ex::fixed_size_simd_mask<T, 4>>::value);
}
};
int main(int, char**) {
types::for_each(arithmetic_no_bool_types(), CheckSimdSizeFixedDeduce());
types::for_each(arithmetic_no_bool_types(), CheckSimdSizeScalarNativeCompatible());
types::for_each(arithmetic_no_bool_types(), CheckSimdSizeTraits());
return 0;
}
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