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 
11 // <experimental/simd>
12 //
13 // [simd.class]
14 // template <class U> simd(U&& value);
15 
16 #include <experimental/simd>
17 #include <cstdint>
18 #include <cassert>
19 
20 #include "test_macros.h"
21 
22 namespace ex = std::experimental::parallelism_v2;
23 
24 template <class T, class... Args>
25 auto not_supported_native_simd_ctor(Args&&... args)
26     -> decltype(ex::native_simd<T>(std::forward<Args>(args)...),
27                 void()) = delete;
28 
29 template <class T>
30 void not_supported_native_simd_ctor(...) {}
31 
32 template <class T, class... Args>
33 auto supported_native_simd_ctor(Args&&... args)
34     -> decltype(ex::native_simd<T>(std::forward<Args>(args)...), void()) {}
35 
36 template <class T>
37 void supported_native_simd_ctor(...) = delete;
38 
39 void compile_narrowing_conversion() {
40   supported_native_simd_ctor<int8_t>(3);
41   supported_native_simd_ctor<int16_t>(3);
42   supported_native_simd_ctor<int32_t>(3);
43   supported_native_simd_ctor<int64_t>(3);
44   supported_native_simd_ctor<uint8_t>(3);
45   supported_native_simd_ctor<uint16_t>(3);
46   supported_native_simd_ctor<uint32_t>(3);
47   supported_native_simd_ctor<uint64_t>(3);
48   supported_native_simd_ctor<float>(3.f);
49   supported_native_simd_ctor<double>(3.);
50   supported_native_simd_ctor<long double>(3.);
51 
52   not_supported_native_simd_ctor<float>(3.);
53   not_supported_native_simd_ctor<int8_t>(long(3));
54   not_supported_native_simd_ctor<float>(long(3));
55   not_supported_native_simd_ctor<int>(3.);
56 }
57 
58 void compile_convertible() {
59   struct ConvertibleToInt {
60     operator int64_t() const;
61   };
62   supported_native_simd_ctor<int64_t>(ConvertibleToInt());
63 
64   struct NotConvertibleToInt {};
65   not_supported_native_simd_ctor<int64_t>(NotConvertibleToInt());
66 }
67 
68 void compile_unsigned() {
69   not_supported_native_simd_ctor<int>(3u);
70   supported_native_simd_ctor<uint16_t>(3u);
71 }
72 
73 template <typename SimdType>
74 void test_broadcast() {
75   SimdType a(3);
76   for (size_t i = 0; i < a.size(); i++) {
77     assert(a[i] == 3);
78   }
79 }
80 
81 int main(int, char**) {
82   test_broadcast<ex::native_simd<int>>();
83   test_broadcast<ex::fixed_size_simd<int, 4>>();
84   test_broadcast<ex::fixed_size_simd<int, 15>>();
85 
86   return 0;
87 }
88