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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"
namespace xsimd
{
template <typename T, std::size_t N>
struct init_swizzle_base
{
using swizzle_vector_type = std::array<T, N>;
swizzle_vector_type lhs_in, exped_reverse, exped_fill, exped_dup, exped_ror, exped_rol;
template <int... Indices>
std::vector<swizzle_vector_type> create_swizzle_vectors()
{
std::vector<swizzle_vector_type> vects;
/* Generate input data */
for (std::size_t i = 0; i < N; ++i)
{
lhs_in[i] = 2 * i + 1;
}
vects.push_back(std::move(lhs_in));
/* Expected reversed data */
for (std::size_t i = 0; i < N; ++i)
{
exped_reverse[i] = lhs_in[N - 1 - i];
exped_fill[i] = lhs_in[N - 1];
exped_dup[i] = lhs_in[2 * (i / 2)];
exped_ror[i] = lhs_in[(i - 1) % N];
exped_rol[i] = lhs_in[(i + 1) % N];
}
vects.push_back(std::move(exped_reverse));
vects.push_back(std::move(exped_fill));
vects.push_back(std::move(exped_dup));
vects.push_back(std::move(exped_ror));
vects.push_back(std::move(exped_rol));
return vects;
}
};
}
template <class T>
struct Reversor
{
static constexpr T get(T i, T n)
{
return n - 1 - i;
}
};
template <class T>
struct Last
{
static constexpr T get(T, T n)
{
return n - 1;
}
};
template <class T>
struct Dup
{
static constexpr T get(T i, T)
{
return 2 * (i / 2);
}
};
template <class T>
struct as_index
{
using type = xsimd::as_unsigned_integer_t<T>;
};
template <class T>
struct as_index<std::complex<T>> : as_index<T>
{
};
template <class B>
struct insert_test
{
using batch_type = B;
using value_type = typename B::value_type;
static constexpr size_t size = B::size;
void insert_first()
{
value_type fill_value = 0;
value_type sentinel_value = 1;
batch_type v(fill_value);
batch_type w = insert(v, sentinel_value, ::xsimd::index<0>());
std::array<value_type, batch_type::size> data;
w.store_unaligned(data.data());
CHECK_SCALAR_EQ(data.front(), sentinel_value);
for (size_t i = 1; i < batch_type::size; ++i)
CHECK_SCALAR_EQ(data[i], fill_value);
}
void insert_last()
{
value_type fill_value = 0;
value_type sentinel_value = 1;
batch_type v(fill_value);
batch_type w = insert(v, sentinel_value, ::xsimd::index<batch_type::size - 1>());
std::array<value_type, batch_type::size> data;
w.store_unaligned(data.data());
for (size_t i = 0; i < batch_type::size - 1; ++i)
CHECK_SCALAR_EQ(data[i], fill_value);
CHECK_SCALAR_EQ(data.back(), sentinel_value);
}
};
TEST_CASE_TEMPLATE("[insert_test]", B, BATCH_TYPES)
{
insert_test<B> Test;
SUBCASE("insert_first")
{
Test.insert_first();
}
SUBCASE("insert_last")
{
Test.insert_last();
}
}
template <class B>
struct swizzle_test
{
using batch_type = B;
using value_type = typename B::value_type;
using arch_type = typename B::arch_type;
static constexpr size_t size = B::size;
void rotate_right()
{
xsimd::init_swizzle_base<value_type, size> swizzle_base;
auto swizzle_vecs = swizzle_base.create_swizzle_vectors();
auto v_lhs = swizzle_vecs[0];
auto v_exped = swizzle_vecs[4];
B b_lhs = B::load_unaligned(v_lhs.data());
B b_exped = B::load_unaligned(v_exped.data());
B b_res = xsimd::rotate_right<1>(b_lhs);
CHECK_BATCH_EQ(b_res, b_exped);
}
void rotate_left()
{
xsimd::init_swizzle_base<value_type, size> swizzle_base;
auto swizzle_vecs = swizzle_base.create_swizzle_vectors();
auto v_lhs = swizzle_vecs[0];
auto v_exped = swizzle_vecs[5];
B b_lhs = B::load_unaligned(v_lhs.data());
B b_exped = B::load_unaligned(v_exped.data());
B b_res = xsimd::rotate_left<1>(b_lhs);
CHECK_BATCH_EQ(b_res, b_exped);
}
void swizzle_reverse()
{
xsimd::init_swizzle_base<value_type, size> swizzle_base;
auto swizzle_vecs = swizzle_base.create_swizzle_vectors();
auto v_lhs = swizzle_vecs[0];
auto v_exped = swizzle_vecs[1];
B b_lhs = B::load_unaligned(v_lhs.data());
B b_exped = B::load_unaligned(v_exped.data());
using index_type = typename as_index<value_type>::type;
auto index_batch = xsimd::make_batch_constant<index_type, arch_type, Reversor<index_type>>();
B b_res = xsimd::swizzle(b_lhs, index_batch);
CHECK_BATCH_EQ(b_res, b_exped);
B b_dyres = xsimd::swizzle(b_lhs, (xsimd::batch<index_type, arch_type>)index_batch);
CHECK_BATCH_EQ(b_dyres, b_exped);
}
void swizzle_fill()
{
xsimd::init_swizzle_base<value_type, size> swizzle_base;
auto swizzle_vecs = swizzle_base.create_swizzle_vectors();
auto v_lhs = swizzle_vecs[0];
auto v_exped = swizzle_vecs[2];
B b_lhs = B::load_unaligned(v_lhs.data());
B b_exped = B::load_unaligned(v_exped.data());
using index_type = typename as_index<value_type>::type;
auto index_batch = xsimd::make_batch_constant<index_type, arch_type, Last<index_type>>();
B b_res = xsimd::swizzle(b_lhs, index_batch);
CHECK_BATCH_EQ(b_res, b_exped);
B b_dyres = xsimd::swizzle(b_lhs, (xsimd::batch<index_type, arch_type>)index_batch);
CHECK_BATCH_EQ(b_dyres, b_exped);
}
void swizzle_dup()
{
xsimd::init_swizzle_base<value_type, size> swizzle_base;
auto swizzle_vecs = swizzle_base.create_swizzle_vectors();
auto v_lhs = swizzle_vecs[0];
auto v_exped = swizzle_vecs[3];
B b_lhs = B::load_unaligned(v_lhs.data());
B b_exped = B::load_unaligned(v_exped.data());
using index_type = typename as_index<value_type>::type;
auto index_batch = xsimd::make_batch_constant<index_type, arch_type, Dup<index_type>>();
B b_res = xsimd::swizzle(b_lhs, index_batch);
CHECK_BATCH_EQ(b_res, b_exped);
B b_dyres = xsimd::swizzle(b_lhs, (xsimd::batch<index_type, arch_type>)index_batch);
CHECK_BATCH_EQ(b_dyres, b_exped);
}
};
TEST_CASE_TEMPLATE("[swizzle]", B, BATCH_SWIZZLE_TYPES)
{
swizzle_test<B> Test;
SUBCASE("reverse")
{
Test.swizzle_reverse();
}
SUBCASE("rotate")
{
Test.rotate_left();
Test.rotate_right();
}
SUBCASE("fill")
{
Test.swizzle_fill();
}
SUBCASE("dup")
{
Test.swizzle_dup();
}
}
#endif
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