1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // UNSUPPORTED: c++03, c++11, c++14
10 // XFAIL: target=powerpc{{.*}}le-unknown-linux-gnu
11
12 // <experimental/simd>
13 //
14 // [simd.class]
15 // template<class U> simd(const simd<U, simd_abi::fixed_size<size()>>&) noexcept;
16
17 #include "../test_utils.h"
18 #include <experimental/simd>
19
20 namespace ex = std::experimental::parallelism_v2;
21
22 template <class T, class SimdAbi, std::size_t array_size>
23 struct ConversionHelper {
24 const std::array<T, array_size>& expected_value;
25
ConversionHelperConversionHelper26 ConversionHelper(const std::array<T, array_size>& value) : expected_value(value) {}
27
28 template <class U>
operator ()ConversionHelper29 void operator()() const {
30 if constexpr (!std::is_same_v<U, T> && std::is_same_v<SimdAbi, ex::simd_abi::fixed_size<array_size>> &&
31 is_non_narrowing_convertible_v<U, T>) {
32 static_assert(noexcept(ex::simd<T, SimdAbi>(ex::simd<U, SimdAbi>{})));
33 ex::simd<U, SimdAbi> origin_simd([](U i) { return i; });
34 ex::simd<T, SimdAbi> simd_from_implicit_conversion(origin_simd);
35 assert_simd_values_equal<array_size>(simd_from_implicit_conversion, expected_value);
36 }
37 }
38 };
39
40 template <class T, std::size_t>
41 struct CheckConversionSimdCtor {
42 template <class SimdAbi>
operator ()CheckConversionSimdCtor43 void operator()() {
44 constexpr std::size_t array_size = ex::simd_size_v<T, SimdAbi>;
45 std::array<T, array_size> expected_value;
46 for (size_t i = 0; i < array_size; ++i)
47 expected_value[i] = static_cast<T>(i);
48
49 types::for_each(simd_test_types(), ConversionHelper<T, SimdAbi, array_size>(expected_value));
50 }
51 };
52
53 template <class T, class SimdAbi, std::size_t array_size>
54 struct CheckConversionSimdCtorTraitsHelper {
55 template <class U>
operator ()CheckConversionSimdCtorTraitsHelper56 void operator()() {
57 if constexpr (!std::is_same_v<U, T>) {
58 if constexpr (std::is_same_v<SimdAbi, ex::simd_abi::fixed_size<array_size>> &&
59 is_non_narrowing_convertible_v<U, T>)
60 static_assert(std::is_convertible_v<ex::simd<U, SimdAbi>, ex::simd<T, SimdAbi>>);
61 else
62 static_assert(!std::is_convertible_v<ex::simd<U, SimdAbi>, ex::simd<T, SimdAbi>>);
63 }
64 }
65 };
66
67 template <class T, std::size_t>
68 struct CheckConversionSimdCtorTraits {
69 template <class SimdAbi>
operator ()CheckConversionSimdCtorTraits70 void operator()() {
71 constexpr std::size_t array_size = ex::simd_size_v<T, SimdAbi>;
72
73 types::for_each(simd_test_types(), CheckConversionSimdCtorTraitsHelper<T, SimdAbi, array_size>());
74 }
75 };
76
main(int,char **)77 int main(int, char**) {
78 test_all_simd_abi<CheckConversionSimdCtor>();
79 test_all_simd_abi<CheckConversionSimdCtorTraits>();
80 return 0;
81 }
82