88 lines
2.8 KiB
C++
88 lines
2.8 KiB
C++
// SPDX-License-Identifier: BSD-2-Clause
|
|
|
|
// This code is part of the sfizz library and is licensed under a BSD 2-clause
|
|
// license. You should have receive a LICENSE.md file along with the code.
|
|
// If not, contact the sfizz maintainers at https://github.com/sfztools/sfizz
|
|
|
|
#include "SIMDHelpers.h"
|
|
#include <benchmark/benchmark.h>
|
|
#include <random>
|
|
#include <numeric>
|
|
#include <vector>
|
|
#include <cmath>
|
|
#include <iostream>
|
|
|
|
class MultiplyAddFixedGain : public benchmark::Fixture {
|
|
public:
|
|
void SetUp(const ::benchmark::State& state)
|
|
{
|
|
std::random_device rd {};
|
|
std::mt19937 gen { rd() };
|
|
std::uniform_real_distribution<float> dist { 0, 1 };
|
|
input = std::vector<float>(state.range(0));
|
|
output = std::vector<float>(state.range(0));
|
|
gain = dist(gen);
|
|
std::fill(output.begin(), output.end(), 1.0f);
|
|
std::generate(input.begin(), input.end(), [&]() { return dist(gen); });
|
|
}
|
|
|
|
void TearDown(const ::benchmark::State& /* state */)
|
|
{
|
|
}
|
|
|
|
float gain = {};
|
|
std::vector<float> input;
|
|
std::vector<float> output;
|
|
};
|
|
|
|
BENCHMARK_DEFINE_F(MultiplyAddFixedGain, Straight)
|
|
(benchmark::State& state)
|
|
{
|
|
for (auto _ : state) {
|
|
for (int i = 0; i < state.range(0); ++i)
|
|
output[i] += gain * input[i];
|
|
}
|
|
}
|
|
|
|
BENCHMARK_DEFINE_F(MultiplyAddFixedGain, Scalar)
|
|
(benchmark::State& state)
|
|
{
|
|
for (auto _ : state) {
|
|
sfz::setSIMDOpStatus(sfz::SIMDOps::multiplyAdd, false);
|
|
sfz::multiplyAdd<float>(gain, input, absl::MakeSpan(output));
|
|
}
|
|
}
|
|
|
|
BENCHMARK_DEFINE_F(MultiplyAddFixedGain, SIMD)
|
|
(benchmark::State& state)
|
|
{
|
|
for (auto _ : state) {
|
|
sfz::setSIMDOpStatus(sfz::SIMDOps::multiplyAdd, true);
|
|
sfz::multiplyAdd<float>(gain, input, absl::MakeSpan(output));
|
|
}
|
|
}
|
|
|
|
BENCHMARK_DEFINE_F(MultiplyAddFixedGain, Scalar_Unaligned)
|
|
(benchmark::State& state)
|
|
{
|
|
for (auto _ : state) {
|
|
sfz::setSIMDOpStatus(sfz::SIMDOps::multiplyAdd, false);
|
|
sfz::multiplyAdd<float>(gain, absl::MakeSpan(input).subspan(1), absl::MakeSpan(output).subspan(1));
|
|
}
|
|
}
|
|
|
|
BENCHMARK_DEFINE_F(MultiplyAddFixedGain, SIMD_Unaligned)
|
|
(benchmark::State& state)
|
|
{
|
|
for (auto _ : state) {
|
|
sfz::setSIMDOpStatus(sfz::SIMDOps::multiplyAdd, true);
|
|
sfz::multiplyAdd<float>(gain, absl::MakeSpan(input).subspan(1), absl::MakeSpan(output).subspan(1));
|
|
}
|
|
}
|
|
|
|
BENCHMARK_REGISTER_F(MultiplyAddFixedGain, Straight)->RangeMultiplier(4)->Range(1 << 2, 1 << 12);
|
|
BENCHMARK_REGISTER_F(MultiplyAddFixedGain, Scalar)->RangeMultiplier(4)->Range(1 << 2, 1 << 12);
|
|
BENCHMARK_REGISTER_F(MultiplyAddFixedGain, SIMD)->RangeMultiplier(4)->Range(1 << 2, 1 << 12);
|
|
BENCHMARK_REGISTER_F(MultiplyAddFixedGain, Scalar_Unaligned)->RangeMultiplier(4)->Range(1 << 2, 1 << 12);
|
|
BENCHMARK_REGISTER_F(MultiplyAddFixedGain, SIMD_Unaligned)->RangeMultiplier(4)->Range(1 << 2, 1 << 12);
|
|
BENCHMARK_MAIN();
|