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/*
* GridTools
*
* Copyright (c) 2014-2023, ETH Zurich
* All rights reserved.
*
* Please, refer to the LICENSE file in the root directory.
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <gridtools/sid/composite.hpp>
#include <gtest/gtest.h>
#include <gridtools/common/array.hpp>
#include <gridtools/common/hymap.hpp>
#include <gridtools/common/integral_constant.hpp>
#include <gridtools/common/tuple_util.hpp>
#include <gridtools/sid/simple_ptr_holder.hpp>
#include <gridtools/sid/synthetic.hpp>
#include <gridtools/sid/unknown_kind.hpp>
namespace gridtools {
namespace {
using namespace literals;
using sid::property;
namespace tu = tuple_util;
using tu::get;
struct a;
struct b;
struct c;
struct d;
TEST(composite, empty) {
using testee_t = sid::composite::keys<>::values<>;
static_assert(is_sid<testee_t>());
static_assert(tu::size<sid::strides_type<testee_t>>::value == 0);
static_assert(tu::size<sid::ptr_holder_type<testee_t>>::value == 0);
static_assert(tu::size<sid::ptr_type<testee_t>>::value == 0);
testee_t testee;
sid::get_strides(testee);
*sid::get_origin(testee)();
}
#if !defined(__NVCC__)
TEST(composite, deduction) {
#if defined(__clang__) || defined(__GNUC__) && __GNUC__ > 8
sid::composite::keys<>::values();
#endif
double const src = 42;
double dst = 0;
sid::composite::keys<a, b>::values(
sid::synthetic().set<property::origin>(sid::host_device::simple_ptr_holder(&src)),
sid::synthetic().set<property::origin>(sid::host_device::simple_ptr_holder(&dst)));
}
#endif
TEST(composite, deref) {
double const src = 42;
double dst = 0;
auto testee = sid::composite::keys<a, b>::make_values(
sid::synthetic().set<property::origin>(sid::host_device::simple_ptr_holder(&src)),
sid::synthetic().set<property::origin>(sid::host_device::simple_ptr_holder(&dst)));
static_assert(is_sid<decltype(testee)>());
auto ptrs = sid::get_origin(testee)();
EXPECT_EQ(&src, at_key<a>(ptrs));
EXPECT_EQ(&dst, at_key<b>(ptrs));
auto refs = *ptrs;
at_key<b>(refs) = at_key<a>(refs);
EXPECT_EQ(42, dst);
}
struct my_strides_kind {};
using dim_i = integral_constant<int, 0>;
using dim_j = integral_constant<int, 1>;
using dim_k = integral_constant<int, 2>;
TEST(composite, functional) {
double const one[5] = {0, 10, 20, 30, 40};
double two = -1;
double three[4][3][5] = {};
char four[4][3][5] = {};
auto my_strides = array{1, 5, 15};
auto testee = sid::composite::keys<a, b, c, d>::make_values( //
sid::synthetic() //
.set<property::origin>(sid::host_device::simple_ptr_holder(&one[0])) //
.set<property::strides>(tuple(1_c)) //
, //
sid::synthetic() //
.set<property::origin>(sid::host_device::simple_ptr_holder(&two)) //
, //
sid::synthetic() //
.set<property::origin>(sid::host_device::simple_ptr_holder(&three[0][0][0])) //
.set<property::strides>(my_strides) //
.set<property::strides_kind, my_strides_kind>() //
, //
sid::synthetic() //
.set<property::origin>(sid::host_device::simple_ptr_holder(&four[0][0][0])) //
.set<property::strides>(my_strides) //
.set<property::strides_kind, my_strides_kind>() //
);
static_assert(is_sid<decltype(testee)>());
auto &&strides = sid::get_strides(testee);
auto &&stride_i = sid::get_stride<dim_i>(strides);
EXPECT_EQ(1, at_key<a>(stride_i));
EXPECT_EQ(0, at_key<b>(stride_i));
auto ptr = sid::get_origin(testee)();
EXPECT_EQ(0, at_key<a>(*ptr));
EXPECT_EQ(-1, at_key<b>(*ptr));
EXPECT_EQ(&four[0][0][0], at_key<d>(ptr));
using ptr_diff_t = sid::ptr_diff_type<decltype(testee)>;
ptr_diff_t ptr_diff;
EXPECT_EQ(0, at_key<a>(ptr_diff));
EXPECT_EQ(0, at_key<b>(ptr_diff));
sid::shift(ptr_diff, stride_i, 1);
EXPECT_EQ(1, at_key<a>(ptr_diff));
EXPECT_EQ(0, at_key<b>(ptr_diff));
sid::shift(ptr_diff, stride_i, 2_c);
EXPECT_EQ(3, at_key<a>(ptr_diff));
EXPECT_EQ(0, at_key<b>(ptr_diff));
ptr = ptr + ptr_diff;
EXPECT_EQ(30, at_key<a>(*ptr));
EXPECT_EQ(-1, at_key<b>(*ptr));
*at_key<b>(ptr) = *at_key<a>(ptr);
EXPECT_EQ(30, at_key<b>(*ptr));
sid::shift(ptr, stride_i, -2);
EXPECT_EQ(10, at_key<a>(*ptr));
EXPECT_EQ(30, at_key<b>(*ptr));
EXPECT_EQ(&three[0][0][1], at_key<c>(ptr));
EXPECT_EQ(&four[0][0][1], at_key<d>(ptr));
sid::shift(ptr, sid::get_stride<dim_j>(strides), 2);
sid::shift(ptr, sid::get_stride<dim_k>(strides), 3_c);
EXPECT_EQ(&three[3][2][1], at_key<c>(ptr));
EXPECT_EQ(&four[3][2][1], at_key<d>(ptr));
ptr_diff = {};
sid::shift(ptr_diff, sid::get_stride<dim_i>(strides), 3);
sid::shift(ptr_diff, sid::get_stride<dim_j>(strides), 2);
sid::shift(ptr_diff, sid::get_stride<dim_k>(strides), 1);
ptr = sid::get_origin(testee)() + ptr_diff;
EXPECT_EQ(&three[1][2][3], at_key<c>(ptr));
EXPECT_EQ(&four[1][2][3], at_key<d>(ptr));
}
struct dim_x;
struct dim_y;
struct dim_z;
TEST(composite, custom_dims) {
double const one[5] = {0, 10, 20, 30, 40};
auto strides_one = hymap::keys<dim_x>::make_values(1_c);
double two = -1;
double three[4][3][5] = {};
auto strides_three = hymap::keys<dim_z, dim_y, dim_x>::make_values(1_c, 5_c, 15_c);
char four[6][4][5] = {};
auto strides_four = hymap::keys<dim_y, dim_z, dim_x>::make_values(1_c, 5_c, 20_c);
auto testee = sid::composite::keys<a, b, c, d>::make_values( //
sid::synthetic() //
.set<property::origin>(sid::host_device::simple_ptr_holder(&one[0])) //
.set<property::strides>(strides_one) //
, //
sid::synthetic() //
.set<property::origin>(sid::host_device::simple_ptr_holder(&two)) //
, //
sid::synthetic() //
.set<property::origin>(sid::host_device::simple_ptr_holder(&three[0][0][0])) //
.set<property::strides>(strides_three) //
, //
sid::synthetic() //
.set<property::origin>(sid::host_device::simple_ptr_holder(&four[0][0][0])) //
.set<property::strides>(strides_four) //
);
auto &&strides = sid::get_strides(testee);
auto ptr = sid::get_origin(testee)();
sid::shift(ptr, sid::get_stride<dim_x>(strides), 3_c);
sid::shift(ptr, sid::get_stride<dim_y>(strides), 2_c);
sid::shift(ptr, sid::get_stride<dim_z>(strides), 1_c);
// no-op: there is no dim_i in our sids.
sid::shift(ptr, sid::get_stride<dim_i>(strides), 1_c);
EXPECT_EQ(&one[3], at_key<a>(ptr));
EXPECT_EQ(&two, at_key<b>(ptr));
EXPECT_EQ(&three[3][2][1], at_key<c>(ptr));
EXPECT_EQ(&four[3][1][2], at_key<d>(ptr));
}
TEST(composite, unknown_kind) {
int one[1] = {};
int two[1][1] = {};
auto testee = sid::composite::keys<a, b>::make_values( //
sid::synthetic() //
.set<property::origin>(sid::host_device::simple_ptr_holder(&one[0])) //
.set<property::strides>(tuple(1)) //
.set<property::strides_kind, sid::unknown_kind>(), //
sid::synthetic() //
.set<property::origin>(sid::host_device::simple_ptr_holder(&two[0][0])) //
.set<property::strides>(tuple(1, 1)) //
.set<property::strides_kind, sid::unknown_kind>());
auto &&strides = sid::get_strides(testee);
auto &&stride_i = sid::get_stride<dim_i>(strides);
EXPECT_EQ(at_key<a>(stride_i), 1);
EXPECT_EQ(at_key<b>(stride_i), 1);
auto &&stride_j = sid::get_stride<dim_j>(strides);
EXPECT_EQ(at_key<a>(stride_j), 0);
EXPECT_EQ(at_key<b>(stride_j), 1);
}
TEST(composite, assign) {
using field_t = double[1][1];
field_t const src0 = {42};
field_t const src1 = {24};
field_t dst0 = {};
field_t dst1 = {};
sid::composite::keys<a, b>::values<field_t const &, field_t const &> src(src0, src1);
sid::composite::keys<b, a>::values<field_t &, field_t &> dst(dst0, dst1);
*sid::get_origin(dst)() = *sid::get_origin(src)();
EXPECT_EQ(dst0[0][0], 24);
EXPECT_EQ(dst1[0][0], 42);
}
struct move_only_sid {
std::unique_ptr<double> ptr;
friend auto sid_get_origin(move_only_sid &s) { return sid::simple_ptr_holder{s.ptr.get()}; }
friend constexpr tuple<integral_constant<int, 1>> sid_get_strides(move_only_sid const &) { return {}; }
};
static_assert(is_sid<move_only_sid>{});
TEST(composite, move_only) {
move_only_sid src0{std::unique_ptr<double>(new double)};
sid::composite::keys<a>::make_values(std::move(src0));
}
} // namespace
} // namespace gridtools
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