tests: Add tests for x64 shader jit

Tests LG2 and EX2 instructions
This commit is contained in:
MerryMage 2017-11-25 03:17:30 +00:00
parent b7cf793814
commit 235a251d3c
3 changed files with 100 additions and 3 deletions

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@ -13,11 +13,17 @@ set(HEADERS
core/arm/arm_test_common.h core/arm/arm_test_common.h
) )
if (ARCHITECTURE_x86_64)
set(SRCS ${SRCS}
video_core/shader/shader_jit_x64_compiler.cpp
)
endif()
create_directory_groups(${SRCS} ${HEADERS}) create_directory_groups(${SRCS} ${HEADERS})
add_executable(tests ${SRCS} ${HEADERS}) add_executable(tests ${SRCS} ${HEADERS})
target_link_libraries(tests PRIVATE common core) target_link_libraries(tests PRIVATE common core video_core)
target_link_libraries(tests PRIVATE glad) # To support linker work-around target_link_libraries(tests PRIVATE glad) # To support linker work-around
target_link_libraries(tests PRIVATE ${PLATFORM_LIBRARIES} catch-single-include Threads::Threads) target_link_libraries(tests PRIVATE ${PLATFORM_LIBRARIES} catch-single-include nihstro-headers Threads::Threads)
add_test(NAME tests COMMAND tests) add_test(NAME tests COMMAND tests)

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@ -0,0 +1,91 @@
// Copyright 2017 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <cmath>
#include <memory>
#include <catch.hpp>
#include <nihstro/inline_assembly.h>
#include "video_core/shader/shader_jit_x64_compiler.h"
using float24 = Pica::float24;
using JitShader = Pica::Shader::JitShader;
using DestRegister = nihstro::DestRegister;
using OpCode = nihstro::OpCode;
using SourceRegister = nihstro::SourceRegister;
static std::unique_ptr<JitShader> CompileShader(std::initializer_list<nihstro::InlineAsm> code) {
const auto shbin = nihstro::InlineAsm::CompileToRawBinary(code);
std::array<u32, Pica::Shader::MAX_PROGRAM_CODE_LENGTH> program_code{};
std::array<u32, Pica::Shader::MAX_SWIZZLE_DATA_LENGTH> swizzle_data{};
std::transform(shbin.program.begin(), shbin.program.end(), program_code.begin(),
[](const auto& x) { return x.hex; });
std::transform(shbin.swizzle_table.begin(), shbin.swizzle_table.end(), swizzle_data.begin(),
[](const auto& x) { return x.hex; });
auto shader = std::make_unique<JitShader>();
shader->Compile(&program_code, &swizzle_data);
return shader;
}
class ShaderTest {
public:
explicit ShaderTest(std::initializer_list<nihstro::InlineAsm> code)
: shader(CompileShader(code)) {}
float Run(float input) {
Pica::Shader::ShaderSetup shader_setup;
Pica::Shader::UnitState shader_unit;
shader_unit.registers.input[0].x = float24::FromFloat32(input);
shader->Run(shader_setup, shader_unit, 0);
return shader_unit.registers.output[0].x.ToFloat32();
}
public:
std::unique_ptr<JitShader> shader;
};
TEST_CASE("LG2", "[video_core][shader][shader_jit]") {
const auto sh_input = SourceRegister::MakeInput(0);
const auto sh_output = DestRegister::MakeOutput(0);
auto shader = ShaderTest({
// clang-format off
{OpCode::Id::LG2, sh_output, sh_input},
{OpCode::Id::END},
// clang-format on
});
REQUIRE(std::isnan(shader.Run(NAN)));
REQUIRE(std::isnan(shader.Run(-1.f)));
REQUIRE(std::isinf(shader.Run(0.f)));
REQUIRE(shader.Run(4.f) == Approx(2.f));
REQUIRE(shader.Run(64.f) == Approx(6.f));
REQUIRE(shader.Run(1.e24f) == Approx(79.7262742773f));
}
TEST_CASE("EX2", "[video_core][shader][shader_jit]") {
const auto sh_input = SourceRegister::MakeInput(0);
const auto sh_output = DestRegister::MakeOutput(0);
auto shader = ShaderTest({
// clang-format off
{OpCode::Id::EX2, sh_output, sh_input},
{OpCode::Id::END},
// clang-format on
});
REQUIRE(std::isnan(shader.Run(NAN)));
REQUIRE(shader.Run(-800.f) == Approx(0.f));
REQUIRE(shader.Run(0.f) == Approx(1.f));
REQUIRE(shader.Run(2.f) == Approx(4.f));
REQUIRE(shader.Run(6.f) == Approx(64.f));
REQUIRE(shader.Run(79.7262742773f) == Approx(1.e24f));
REQUIRE(std::isinf(shader.Run(800.f)));
}

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@ -87,7 +87,7 @@ target_link_libraries(video_core PUBLIC common core)
target_link_libraries(video_core PRIVATE glad nihstro-headers) target_link_libraries(video_core PRIVATE glad nihstro-headers)
if (ARCHITECTURE_x86_64) if (ARCHITECTURE_x86_64)
target_link_libraries(video_core PRIVATE xbyak) target_link_libraries(video_core PUBLIC xbyak)
endif() endif()
if (PNG_FOUND) if (PNG_FOUND)