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/***************************************************************************
* 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"
#include <climits>
namespace xsimd
{
template <class T, std::size_t N = T::size>
struct test_int_min_max
{
bool run()
{
return true;
}
};
template <class T>
struct test_int_min_max<batch<T>, 2>
{
void run()
{
using B = batch<T>;
using BB = batch_bool<T>;
using A = std::array<T, 2>;
T max = std::numeric_limits<T>::max();
T min = std::numeric_limits<T>::min();
std::array<T, 2> maxmin_cmp { { max, min } };
B maxmin = { max, min };
INFO("numeric max and min");
CHECK_BATCH_EQ(maxmin, maxmin_cmp);
B a = { 1, 3 };
B b(2);
B c = { 2, 3 };
auto r1 = xsimd::max(a, c);
auto r3 = xsimd::min(a, c);
INFO("max");
CHECK_BATCH_EQ(r1, (A { { 2, 3 } }));
INFO("min");
CHECK_BATCH_EQ(r3, (A { { 1, 3 } }));
auto r4 = a < b; // test lt
BB e4 = { 1, 0 };
CHECK_UNARY(xsimd::all(r4 == e4));
}
};
template <class T>
struct test_int_min_max<batch<T>, 4>
{
void run()
{
using B = batch<T>;
using BB = batch_bool<T>;
using A = std::array<T, 4>;
B a = { 1, 3, 1, 1 };
B b(2);
B c = { 2, 3, 2, 3 };
auto r1 = xsimd::max(a, c);
auto r3 = xsimd::min(a, c);
INFO("max");
CHECK_BATCH_EQ(r1, (A { { 2, 3, 2, 3 } }));
INFO("min");
CHECK_BATCH_EQ(r3, (A { { 1, 3, 1, 1 } }));
auto r4 = a < b; // test lt
BB e4 = { 1, 0, 1, 1 };
CHECK_UNARY(xsimd::all(r4 == e4));
}
};
template <class T>
struct test_int_min_max<batch<T>, 8>
{
void run()
{
using B = batch<T>;
using BB = batch_bool<T>;
using A = std::array<T, 8>;
T max = std::numeric_limits<T>::max();
T min = std::numeric_limits<T>::min();
std::array<T, 8> maxmin_cmp { { 0, 0, max, 0, min, 0, 0, 0 } };
B maxmin = { 0, 0, max, 0, min, 0, 0, 0 };
INFO("numeric max and min");
CHECK_BATCH_EQ(maxmin, maxmin_cmp);
B a { 1, 3, 1, 3, 1, 1, 3, 3 };
B b { 2 };
B c { 2, 3, 2, 3, 2, 3, 2, 3 };
auto r1 = xsimd::max(a, c);
auto r3 = xsimd::min(a, c);
auto r4 = a < b; // test lt
INFO("max");
CHECK_BATCH_EQ(r1, (A { { 2, 3, 2, 3, 2, 3, 3, 3 } }));
INFO("min");
CHECK_BATCH_EQ(r3, (A { { 1, 3, 1, 3, 1, 1, 2, 3 } }));
BB e4 = { 1, 0, 1, 0, 1, 1, 0, 0 };
CHECK_UNARY(xsimd::all(r4 == e4));
}
};
template <class T>
struct test_int_min_max<batch<T>, 16>
{
void run()
{
using B = batch<T>;
using BB = batch_bool<T>;
using A = std::array<T, 16>;
T max = std::numeric_limits<T>::max();
T min = std::numeric_limits<T>::min();
std::array<T, 16> maxmin_cmp { { 0, 0, max, 0, min, 0, 0, 0, 0, 0, max, 0, min, 0, 0, 0 } };
B maxmin = { 0, 0, max, 0, min, 0, 0, 0, 0, 0, max, 0, min, 0, 0, 0 };
INFO("numeric max and min");
CHECK_BATCH_EQ(maxmin, maxmin_cmp);
B a = { 1, 3, 1, 3, 1, 3, 1, 3, 3, 3, 3, 3, min, max, max, min };
B b(2);
B c = { 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3 };
auto r1 = xsimd::max(a, b);
auto r3 = xsimd::min(a, b);
auto r4 = a < b; // test lt
auto r5 = a == c;
auto r6 = a != c;
INFO("max");
CHECK_BATCH_EQ(r1, (A { { 2, 3, 2, 3, 2, 3, 2, 3, 3, 3, 3, 3, 2, max, max, 2 } }));
INFO("min");
CHECK_BATCH_EQ(r3, (A { { 1, 2, 1, 2, 1, 2, 1, 2, 2, 2, 2, 2, min, 2, 2, min } }));
BB e4 = { 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1 };
CHECK_UNARY(xsimd::all(r4 == e4));
BB e5 = { 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0 };
CHECK_UNARY(xsimd::all(r5 == e5));
CHECK_UNARY(xsimd::all(r6 == !e5));
}
};
template <class T>
struct test_int_min_max<batch<T>, 32>
{
void run()
{
using B = batch<T>;
using BB = batch_bool<T>;
using A = std::array<T, 32>;
T max = std::numeric_limits<T>::max();
T min = std::numeric_limits<T>::min();
B a = { 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 3, 3, 3, 3, min, max, max, min };
B b = 2;
auto r1 = xsimd::max(a, b);
auto r3 = xsimd::min(a, b);
auto r4 = a < b; // test lt
INFO("max");
CHECK_BATCH_EQ(r1, (A { { 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 3, 3, 3, 3, 2, max, max, 2 } }));
INFO("min");
CHECK_BATCH_EQ(r3, (A { { 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 2, 2, 2, 2, min, 2, 2, min } }));
BB e4 = { 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1 };
CHECK_UNARY(xsimd::all(r4 == e4));
}
};
}
template <class B>
struct batch_int_test
{
using batch_type = B;
using value_type = typename B::value_type;
static constexpr size_t size = B::size;
using array_type = std::array<value_type, size>;
using bool_array_type = std::array<bool, size>;
array_type lhs;
array_type rhs;
array_type shift;
batch_int_test()
{
using signed_value_type = typename std::make_signed<value_type>::type;
for (size_t i = 0; i < size; ++i)
{
bool negative_lhs = std::is_signed<value_type>::value && (i % 2 == 1);
lhs[i] = value_type(i) * (negative_lhs ? -10 : 10);
if (lhs[i] == value_type(0))
{
lhs[i] += value_type(1);
}
rhs[i] = value_type(i) + value_type(4);
shift[i] = signed_value_type(i) % (CHAR_BIT * sizeof(value_type));
}
}
void test_modulo() const
{
// batch % batch
{
array_type expected;
std::transform(lhs.cbegin(), lhs.cend(), rhs.cbegin(), expected.begin(),
[](const value_type& l, const value_type& r)
{ return l % r; });
batch_type res = batch_lhs() % batch_rhs();
INFO("batch % batch");
CHECK_BATCH_EQ(res, expected);
}
}
void test_shift() const
{
int32_t nb_sh = 3;
// batch << scalar
{
array_type expected;
std::transform(lhs.cbegin(), lhs.cend(), expected.begin(),
[nb_sh](const value_type& v)
{ return v << nb_sh; });
batch_type res = batch_lhs() << nb_sh;
INFO("batch << scalar");
CHECK_BATCH_EQ(res, expected);
}
// batch << batch
{
array_type expected;
std::transform(lhs.cbegin(), lhs.cend(), shift.cbegin(), expected.begin(),
[](const value_type& l, const value_type& r)
{ return l << r; });
batch_type res = batch_lhs() << batch_shift();
INFO("batch << batch");
CHECK_BATCH_EQ(res, expected);
}
// batch >> scalar
{
array_type expected;
std::transform(lhs.cbegin(), lhs.cend(), expected.begin(),
[nb_sh](const value_type& v)
{ return v >> nb_sh; });
batch_type res = batch_lhs() >> nb_sh;
INFO("batch >> scalar");
CHECK_BATCH_EQ(res, expected);
}
// batch >> batch
{
array_type expected;
std::transform(lhs.cbegin(), lhs.cend(), shift.cbegin(), expected.begin(),
[](const value_type& l, const value_type& r)
{ return l >> r; });
batch_type res = batch_lhs() >> batch_shift();
INFO("batch >> batch");
CHECK_BATCH_EQ(res, expected);
}
}
void test_more_shift() const
{
int32_t s = static_cast<int32_t>(sizeof(value_type) * 8);
batch_type lhs = batch_type(value_type(1));
batch_type res;
for (int32_t i = 0; i < s; ++i)
{
res = lhs << i;
value_type expected = value_type(1) << i;
for (std::size_t j = 0; j < size; ++j)
{
CHECK_EQ(res.get(j), expected);
}
}
lhs = batch_type(std::numeric_limits<value_type>::max());
for (int32_t i = 0; i < s; ++i)
{
res = lhs >> value_type(i);
value_type expected = std::numeric_limits<value_type>::max() >> i;
for (std::size_t j = 0; j < size; ++j)
{
CHECK_EQ(res.get(j), expected);
}
}
}
void test_min_max() const
{
xsimd::test_int_min_max<batch_type> t;
t.run();
}
void test_less_than_underflow() const
{
batch_type test_negative_compare = batch_type(5) - 6;
if (std::is_unsigned<value_type>::value)
{
CHECK_FALSE(xsimd::any(test_negative_compare < 1));
}
else
{
CHECK_UNARY(xsimd::all(test_negative_compare < 1));
}
}
private:
batch_type batch_lhs() const
{
return batch_type::load_unaligned(lhs.data());
}
batch_type batch_rhs() const
{
return batch_type::load_unaligned(rhs.data());
}
batch_type batch_shift() const
{
return batch_type::load_unaligned(shift.data());
}
};
TEST_CASE_TEMPLATE("[batch int tests]", B, BATCH_INT_TYPES)
{
batch_int_test<B> Test;
SUBCASE("modulo")
{
Test.test_modulo();
}
SUBCASE("shift")
{
Test.test_shift();
}
SUBCASE("more_shift")
{
Test.test_more_shift();
}
SUBCASE("min_max")
{
Test.test_min_max();
}
SUBCASE("less_than_underflow")
{
Test.test_less_than_underflow();
}
}
#endif
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