72 lines
2 KiB
C++
72 lines
2 KiB
C++
// SPDX-License-Identifier: BSD-2-Clause
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// This code is part of the sfizz library and is licensed under a BSD 2-clause
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// license. You should have receive a LICENSE.md file along with the code.
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// If not, contact the sfizz maintainers at https://github.com/sfztools/sfizz
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#include "BM_opcodeSpec.h"
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#include <benchmark/benchmark.h>
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#include <random>
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#include <numeric>
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#include <vector>
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#include <cmath>
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#include <iostream>
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class OpcodeSpecFixture : public benchmark::Fixture {
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public:
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void SetUp(const ::benchmark::State& state) {
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std::random_device rd { };
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std::mt19937 gen { rd() };
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std::uniform_real_distribution<float> dist { 0.0f, 1.0f };
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value = dist(gen);
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}
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void TearDown(const ::benchmark::State& /* state */) {
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}
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float value;
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float returned;
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};
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BENCHMARK_DEFINE_F(OpcodeSpecFixture, ConstexprClamp)(benchmark::State& state) {
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for (auto _ : state)
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{
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if (constexprSpec.flags | (1 << 2))
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returned = constexprSpec.bounds.clamp(value);
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benchmark::DoNotOptimize(returned);
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}
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}
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BENCHMARK_DEFINE_F(OpcodeSpecFixture, ConstexprDontClamp)(benchmark::State& state) {
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for (auto _ : state)
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{
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if (constexprSpec.flags | (1 << 1))
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returned = constexprSpec.bounds.clamp(value);
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benchmark::DoNotOptimize(returned);
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}
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}
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BENCHMARK_DEFINE_F(OpcodeSpecFixture, ConstClamp)(benchmark::State& state) {
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for (auto _ : state)
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{
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if (constSpec.flags | (1 << 2))
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returned = constSpec.bounds.clamp(value);
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benchmark::DoNotOptimize(returned);
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}
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}
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BENCHMARK_DEFINE_F(OpcodeSpecFixture, ConstDontClamp)(benchmark::State& state) {
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for (auto _ : state)
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{
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if (constSpec.flags | (1 << 1))
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returned = constSpec.bounds.clamp(value);
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benchmark::DoNotOptimize(returned);
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}
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}
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BENCHMARK_REGISTER_F(OpcodeSpecFixture, ConstexprClamp);
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BENCHMARK_REGISTER_F(OpcodeSpecFixture, ConstexprDontClamp);
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BENCHMARK_REGISTER_F(OpcodeSpecFixture, ConstClamp);
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BENCHMARK_REGISTER_F(OpcodeSpecFixture, ConstDontClamp);
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BENCHMARK_MAIN();
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