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/* This file is part of the dynarmic project.
* Copyright (c) 2022 MerryMage
* SPDX-License-Identifier: 0BSD
*/
#include <vector>
#include <catch2/catch_test_macros.hpp>
#include <mcl/stdint.hpp>
#include "./testenv.h"
using namespace Dynarmic;
namespace {
struct TestCase {
u32 a;
u32 b;
u32 fmax;
u32 fmaxnm;
u32 fmin;
u32 fminnm;
};
const std::vector test_cases{
// a b fmax fmaxnm fmin fminnm
TestCase{0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000}, // +0.0
TestCase{0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000}, // -0.0
TestCase{0x3f800000, 0x3f800000, 0x3f800000, 0x3f800000, 0x3f800000, 0x3f800000}, // +1.0
TestCase{0xbf800000, 0xbf800000, 0xbf800000, 0xbf800000, 0xbf800000, 0xbf800000}, // -1.0
TestCase{0x7f800000, 0x7f800000, 0x7f800000, 0x7f800000, 0x7f800000, 0x7f800000}, // +Inf
TestCase{0xff800000, 0xff800000, 0xff800000, 0xff800000, 0xff800000, 0xff800000}, // -Inf
TestCase{0x7fc00041, 0x7fc00041, 0x7fc00041, 0x7fc00041, 0x7fc00041, 0x7fc00041}, // QNaN
TestCase{0x7f800042, 0x7f800042, 0x7fc00042, 0x7fc00042, 0x7fc00042, 0x7fc00042}, // SNaN
TestCase{0x00000000, 0x80000000, 0x00000000, 0x00000000, 0x80000000, 0x80000000}, // (+0.0, -0.0)
TestCase{0x3f800000, 0xbf800000, 0x3f800000, 0x3f800000, 0xbf800000, 0xbf800000}, // (+1.0, -1.0)
TestCase{0x3f800000, 0x7f800000, 0x7f800000, 0x7f800000, 0x3f800000, 0x3f800000}, // (+1.0, +Inf)
TestCase{0x3f800000, 0xff800000, 0x3f800000, 0x3f800000, 0xff800000, 0xff800000}, // (+1.0, -Inf)
TestCase{0x7f800000, 0xff800000, 0x7f800000, 0x7f800000, 0xff800000, 0xff800000}, // (+Inf, -Inf)
TestCase{0x3f800000, 0x7fc00041, 0x7fc00041, 0x3f800000, 0x7fc00041, 0x3f800000}, // (+1.0, QNaN)
TestCase{0x3f800000, 0x7f800042, 0x7fc00042, 0x7fc00042, 0x7fc00042, 0x7fc00042}, // (+1.0, SNaN)
TestCase{0x7f800000, 0x7fc00041, 0x7fc00041, 0x7f800000, 0x7fc00041, 0x7f800000}, // (+Inf, QNaN)
TestCase{0x7f800000, 0x7f800042, 0x7fc00042, 0x7fc00042, 0x7fc00042, 0x7fc00042}, // (+Inf, SNaN)
TestCase{0x7fc00041, 0x7f800042, 0x7fc00042, 0x7fc00042, 0x7fc00042, 0x7fc00042}, // (QNaN, SNaN)
TestCase{0xffa57454, 0xe343a6b3, 0xffe57454, 0xffe57454, 0xffe57454, 0xffe57454},
};
const std::vector unidirectional_test_cases{
TestCase{0x7fc00041, 0x7fc00043, 0x7fc00041, 0x7fc00041, 0x7fc00041, 0x7fc00041}, // (QNaN, QNaN)
TestCase{0x7f800042, 0x7f800044, 0x7fc00042, 0x7fc00042, 0x7fc00042, 0x7fc00042}, // (SNaN, SNaN)
};
constexpr u32 default_nan = 0x7fc00000;
bool is_nan(u32 value) {
return (value & 0x7f800000) == 0x7f800000 && (value & 0x007fffff) != 0;
}
u32 force_default_nan(u32 value) {
return is_nan(value) ? default_nan : value;
}
template<typename Fn>
void run_test(u32 instruction, Fn fn) {
A64TestEnv env;
A64::Jit jit{A64::UserConfig{&env}};
env.code_mem.emplace_back(instruction); // FMAX S0, S1, S2
env.code_mem.emplace_back(0x14000000); // B .
for (const auto base_fpcr : {0, 0x01000000}) {
for (const auto test_case : test_cases) {
INFO(test_case.a);
INFO(test_case.b);
jit.SetFpcr(base_fpcr);
jit.SetVector(0, {42, 0});
jit.SetVector(1, {test_case.a, 0});
jit.SetVector(2, {test_case.b, 0});
jit.SetPC(0);
env.ticks_left = 2;
jit.Run();
REQUIRE(jit.GetVector(0)[0] == fn(test_case));
jit.SetVector(0, {42, 0});
jit.SetVector(1, {test_case.b, 0});
jit.SetVector(2, {test_case.a, 0});
jit.SetPC(0);
env.ticks_left = 2;
jit.Run();
REQUIRE(jit.GetVector(0)[0] == fn(test_case));
jit.SetFpcr(base_fpcr | 0x02000000);
jit.SetVector(0, {42, 0});
jit.SetVector(1, {test_case.a, 0});
jit.SetVector(2, {test_case.b, 0});
jit.SetPC(0);
env.ticks_left = 2;
jit.Run();
REQUIRE(jit.GetVector(0)[0] == force_default_nan(fn(test_case)));
jit.SetVector(0, {42, 0});
jit.SetVector(1, {test_case.b, 0});
jit.SetVector(2, {test_case.a, 0});
jit.SetPC(0);
env.ticks_left = 2;
jit.Run();
REQUIRE(jit.GetVector(0)[0] == force_default_nan(fn(test_case)));
}
for (const auto test_case : unidirectional_test_cases) {
INFO(test_case.a);
INFO(test_case.b);
jit.SetFpcr(base_fpcr);
jit.SetVector(0, {42, 0});
jit.SetVector(1, {test_case.a, 0});
jit.SetVector(2, {test_case.b, 0});
jit.SetPC(0);
env.ticks_left = 2;
jit.Run();
REQUIRE(jit.GetVector(0)[0] == fn(test_case));
jit.SetFpcr(base_fpcr | 0x02000000);
jit.SetVector(0, {42, 0});
jit.SetVector(1, {test_case.a, 0});
jit.SetVector(2, {test_case.b, 0});
jit.SetPC(0);
env.ticks_left = 2;
jit.Run();
REQUIRE(jit.GetVector(0)[0] == force_default_nan(fn(test_case)));
}
}
}
} // namespace
TEST_CASE("A64: FMAX (scalar)", "[a64]") {
run_test(0x1e224820, [](const TestCase& test_case) { return test_case.fmax; });
}
TEST_CASE("A64: FMIN (scalar)", "[a64]") {
run_test(0x1e225820, [](const TestCase& test_case) { return test_case.fmin; });
}
TEST_CASE("A64: FMAXNM (scalar)", "[a64]") {
run_test(0x1e226820, [](const TestCase& test_case) { return test_case.fmaxnm; });
}
TEST_CASE("A64: FMINNM (scalar)", "[a64]") {
run_test(0x1e227820, [](const TestCase& test_case) { return test_case.fminnm; });
}
TEST_CASE("A64: FMAX (vector)", "[a64]") {
run_test(0x4e22f420, [](const TestCase& test_case) { return test_case.fmax; });
}
TEST_CASE("A64: FMIN (vector)", "[a64]") {
run_test(0x4ea2f420, [](const TestCase& test_case) { return test_case.fmin; });
}
TEST_CASE("A64: FMAXNM (vector)", "[a64]") {
run_test(0x4e22c420, [](const TestCase& test_case) { return test_case.fmaxnm; });
}
TEST_CASE("A64: FMINNM (vector)", "[a64]") {
run_test(0x4ea2c420, [](const TestCase& test_case) { return test_case.fminnm; });
}
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