1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/***************************************************************************
* Copyright (c) Johan Mabille, Sylvain Corlay, Wolf Vollprecht and *
* Martin Renou *
* Copyright (c) QuantStack *
* Copyright (c) Serge Guelton *
* *
* Distributed under the terms of the BSD 3-Clause License. *
* *
* The full license is in the file LICENSE, distributed with this software. *
****************************************************************************/
#include "xsimd/xsimd.hpp"
#ifndef XSIMD_NO_SUPPORTED_ARCHITECTURE
#include <type_traits>
#include <vector>
#include "doctest/doctest.h"
#include "xsimd/memory/xsimd_aligned_allocator.hpp"
#include "xsimd/memory/xsimd_alignment.hpp"
struct mock_container
{
};
TEST_CASE("[alignment]")
{
using u_vector_type = std::vector<double>;
using a_vector_type = std::vector<double, xsimd::default_allocator<double>>;
using u_vector_align = xsimd::container_alignment_t<u_vector_type>;
using a_vector_align = xsimd::container_alignment_t<a_vector_type>;
using mock_align = xsimd::container_alignment_t<mock_container>;
if (xsimd::default_arch::requires_alignment())
{
CHECK_UNARY((std::is_same<u_vector_align, xsimd::unaligned_mode>::value));
CHECK_UNARY((std::is_same<a_vector_align, xsimd::aligned_mode>::value));
CHECK_UNARY((std::is_same<mock_align, xsimd::unaligned_mode>::value));
}
}
TEST_CASE("[is_aligned]")
{
float f[100];
void* unaligned_f = static_cast<void*>(&f[0]);
constexpr std::size_t alignment = xsimd::default_arch::alignment();
std::size_t aligned_f_size;
void* aligned_f = std::align(alignment, sizeof(f), unaligned_f, aligned_f_size);
CHECK_UNARY(xsimd::is_aligned(aligned_f));
// GCC does not generate correct alignment on ARM
// (see https://godbolt.org/z/obv1n8bWq)
#if !(XSIMD_WITH_NEON && defined(__GNUC__) && !defined(__clang__))
alignas(alignment) char aligned[8];
CHECK_UNARY(xsimd::is_aligned(&aligned[0]));
CHECK_UNARY(!xsimd::is_aligned(&aligned[3]));
#endif
}
#endif
|
