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 | #ifndef LIBCXX_TEST_STD_EXPERIMENTAL_SIMD_TEST_UTILS_H |
10 | #define LIBCXX_TEST_STD_EXPERIMENTAL_SIMD_TEST_UTILS_H |
11 | |
12 | #include <array> |
13 | #include <cassert> |
14 | #include <cstddef> |
15 | #include <experimental/simd> |
16 | #include <type_traits> |
17 | #include <utility> |
18 | |
19 | #include "type_algorithms.h" |
20 | |
21 | namespace ex = std::experimental::parallelism_v2; |
22 | |
23 | constexpr std::size_t max_simd_size = 32; |
24 | |
25 | template <template <class T, std::size_t N> class F> |
26 | struct TestAllSimdAbiFunctor { |
27 | template <class T, std::size_t N> |
28 | using sized_abis = types::type_list<ex::simd_abi::fixed_size<N>, ex::simd_abi::deduce_t<T, N>>; |
29 | |
30 | template <class T, std::size_t... Ns> |
31 | void instantiate_with_n(std::index_sequence<Ns...>) { |
32 | (types::for_each(sized_abis<T, Ns>{}, F<T, Ns>{}), ...); |
33 | } |
34 | |
35 | template <class T> |
36 | void operator()() { |
37 | using abis = types::type_list<ex::simd_abi::scalar, ex::simd_abi::native<T>, ex::simd_abi::compatible<T>>; |
38 | types::for_each(abis{}, F<T, 1>()); |
39 | |
40 | instantiate_with_n<T>( |
41 | std::index_sequence<1, 2, 3, 4, 8, 16, max_simd_size - 2, max_simd_size - 1, max_simd_size>{}); |
42 | } |
43 | }; |
44 | |
45 | // TODO: Support long double (12 bytes) for 32-bits x86 |
46 | #ifdef __i386__ |
47 | using arithmetic_no_bool_types = types::concatenate_t<types::integer_types, types::type_list<float, double>>; |
48 | #else |
49 | using arithmetic_no_bool_types = types::concatenate_t<types::integer_types, types::floating_point_types>; |
50 | #endif |
51 | |
52 | // For interfaces with vectorizable type template parameters, we only use some common or boundary types |
53 | // as template parameters for testing to ensure that the compilation time of a single test does not exceed. |
54 | using simd_test_integer_types = |
55 | types::type_list<char, |
56 | unsigned, |
57 | int |
58 | #ifndef TEST_HAS_NO_INT128 |
59 | , |
60 | __int128_t |
61 | #endif |
62 | >; |
63 | using simd_test_types = types::concatenate_t<simd_test_integer_types, types::type_list<float, double>>; |
64 | |
65 | template <template <class T, std::size_t N> class Func> |
66 | void test_all_simd_abi() { |
67 | types::for_each(arithmetic_no_bool_types(), TestAllSimdAbiFunctor<Func>()); |
68 | } |
69 | |
70 | constexpr size_t bit_ceil(size_t val) { |
71 | size_t pow = 1; |
72 | while (pow < val) |
73 | pow <<= 1; |
74 | return pow; |
75 | } |
76 | |
77 | template <class From, class To, class = void> |
78 | inline constexpr bool is_non_narrowing_convertible_v = false; |
79 | |
80 | template <class From, class To> |
81 | inline constexpr bool is_non_narrowing_convertible_v<From, To, std::void_t<decltype(To{std::declval<From>()})>> = true; |
82 | |
83 | template <std::size_t ArraySize, class SimdAbi, class T, class U = T> |
84 | void assert_simd_values_equal(const ex::simd<T, SimdAbi>& origin_simd, const std::array<U, ArraySize>& expected_value) { |
85 | for (std::size_t i = 0; i < origin_simd.size(); ++i) |
86 | assert(origin_simd[i] == static_cast<T>(expected_value[i])); |
87 | } |
88 | |
89 | template <std::size_t ArraySize, class T, class SimdAbi> |
90 | void assert_simd_mask_values_equal(const ex::simd_mask<T, SimdAbi>& origin_mask, |
91 | const std::array<bool, ArraySize>& expected_value) { |
92 | for (std::size_t i = 0; i < origin_mask.size(); ++i) |
93 | assert(origin_mask[i] == expected_value[i]); |
94 | } |
95 | |
96 | template <class SimdAbi, class T, class U = T> |
97 | void assert_simd_values_equal(const ex::simd<T, SimdAbi>& origin_simd, U* expected_value) { |
98 | for (size_t i = 0; i < origin_simd.size(); ++i) |
99 | assert(origin_simd[i] == static_cast<T>(expected_value[i])); |
100 | } |
101 | |
102 | template <class SimdAbi, class T> |
103 | void assert_simd_mask_values_equal(const ex::simd_mask<T, SimdAbi>& origin_mask, bool* expected_value) { |
104 | for (size_t i = 0; i < origin_mask.size(); ++i) |
105 | assert(origin_mask[i] == expected_value[i]); |
106 | } |
107 | |
108 | #endif // LIBCXX_TEST_STD_EXPERIMENTAL_SIMD_TEST_UTILS_H |
109 | |