-
Notifications
You must be signed in to change notification settings - Fork 309
Expand file tree
/
Copy pathtest_power.cpp
More file actions
175 lines (166 loc) · 6.65 KB
/
Copy pathtest_power.cpp
File metadata and controls
175 lines (166 loc) · 6.65 KB
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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
/***************************************************************************
* 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 "test_utils.hpp"
template <class B>
struct power_test
{
using batch_type = B;
using value_type = typename B::value_type;
static constexpr size_t size = B::size;
using vector_type = std::vector<value_type>;
size_t nb_input;
vector_type zero_input;
vector_type zlhs_input;
vector_type lhs_input;
vector_type rhs_input;
vector_type expected;
power_test()
{
nb_input = size * 10000;
zero_input.resize(nb_input);
zlhs_input.resize(nb_input);
lhs_input.resize(nb_input);
rhs_input.resize(nb_input);
for (size_t i = 0; i < nb_input; ++i)
{
zero_input[i] = 0;
lhs_input[i] = value_type(i / 4 + 1.2 * std::sqrt(i + 0.25));
zlhs_input[i] = lhs_input[i] * (i % 2);
rhs_input[i] = value_type(10.2 / (i + 2) + 0.25);
}
expected.resize(nb_input);
}
void test_power_functions()
{
// pow
{
std::transform(lhs_input.cbegin(), lhs_input.cend(), rhs_input.cbegin(), expected.begin(),
[](const value_type& l, const value_type& r)
{ return std::pow(l, r); });
for (size_t i = 0; i < nb_input; i += size)
{
batch_type lhs_in, rhs_in, out, ref;
detail::load_batch(lhs_in, lhs_input, i);
detail::load_batch(rhs_in, rhs_input, i);
out = pow(lhs_in, rhs_in);
detail::load_batch(ref, expected, i);
INFO("pow");
CHECK_BATCH_EQ(ref, out);
}
}
// pow zero
{
std::transform(zlhs_input.cbegin(), zlhs_input.cend(), rhs_input.cbegin(), expected.begin(),
[](const value_type& l, const value_type& r)
{ return std::pow(l, r); });
for (size_t i = 0; i < nb_input; i += size)
{
batch_type zlhs_in, rhs_in, out, ref;
detail::load_batch(zlhs_in, zlhs_input, i);
detail::load_batch(rhs_in, rhs_input, i);
out = pow(zlhs_in, rhs_in);
detail::load_batch(ref, expected, i);
INFO("0 ^ x");
CHECK_BATCH_EQ(ref, out);
}
// use of undeclared identifier '_MM_SET_EXCEPTION_MASK for emscripten
#if defined(__SSE__) && !defined(EMSCRIPTEN)
// Test with FE_INVALID...
unsigned mask = _MM_GET_EXCEPTION_MASK();
_MM_SET_EXCEPTION_MASK(mask & ~_MM_MASK_INVALID);
for (size_t i = 0; i < nb_input; i += size)
{
batch_type zlhs_in, rhs_in, out, ref;
detail::load_batch(zlhs_in, zlhs_input, i);
detail::load_batch(rhs_in, rhs_input, i);
out = pow(zlhs_in, rhs_in);
detail::load_batch(ref, expected, i);
INFO("0 ^ x with exception");
CHECK_BATCH_EQ(ref, out);
}
_MM_SET_EXCEPTION_MASK(mask);
#endif
}
#ifndef __FAST_MATH__
// pow 0^-x
{
std::transform(zero_input.cbegin(), zero_input.cend(), rhs_input.cbegin(), expected.begin(),
[](const value_type& z, const value_type& r)
{ return std::pow(z, -r); });
for (size_t i = 0; i < nb_input; i += size)
{
batch_type zero_in, rhs_in, out, ref;
detail::load_batch(zero_in, zero_input, i);
detail::load_batch(rhs_in, rhs_input, i);
out = pow(zero_in, -rhs_in);
detail::load_batch(ref, expected, i);
INFO("pow(0, -x)");
CHECK_BATCH_EQ(ref, out);
}
}
#endif
// ipow
{
long k = 0;
std::transform(lhs_input.cbegin(), lhs_input.cend(), expected.begin(),
[&k, this](const value_type& l)
{ auto arg = k / size / 8000 - nb_input / size / 8000 / 2; ++k; return std::pow(l, arg); });
for (size_t i = 0; i < nb_input; i += size)
{
batch_type lhs_in, out, ref;
detail::load_batch(lhs_in, lhs_input, i);
out = pow(lhs_in, i / size / 8000 - nb_input / size / 8000 / 2);
detail::load_batch(ref, expected, i);
INFO("ipow");
CHECK_BATCH_EQ(ref, out);
}
}
// hypot
{
std::transform(lhs_input.cbegin(), lhs_input.cend(), rhs_input.cbegin(), expected.begin(),
[](const value_type& l, const value_type& r)
{ return std::hypot(l, r); });
for (size_t i = 0; i < nb_input; i += size)
{
batch_type lhs_in, rhs_in, out, ref;
detail::load_batch(lhs_in, lhs_input, i);
detail::load_batch(rhs_in, rhs_input, i);
out = hypot(lhs_in, rhs_in);
detail::load_batch(ref, expected, i);
INFO("hypot");
CHECK_BATCH_EQ(ref, out);
}
}
// cbrt
{
std::transform(lhs_input.cbegin(), lhs_input.cend(), expected.begin(),
[](const value_type& l)
{ return std::cbrt(l); });
for (size_t i = 0; i < nb_input; i += size)
{
batch_type lhs_in, out, ref;
detail::load_batch(lhs_in, lhs_input, i);
out = cbrt(lhs_in);
detail::load_batch(ref, expected, i);
INFO("cbrt");
CHECK_BATCH_EQ(ref, out);
}
}
}
};
TEST_CASE_TEMPLATE("[power]", B, BATCH_FLOAT_TYPES)
{
power_test<B> Test;
Test.test_power_functions();
}
#endif