97 lines
2.3 KiB
C++
97 lines
2.3 KiB
C++
// Copyright 2019 Google LLC
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//
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree.
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#pragma once
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#include <gtest/gtest.h>
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#include <algorithm>
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#include <cassert>
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#include <cstddef>
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#include <cstdlib>
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#include <functional>
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#include <random>
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#include <vector>
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#include <xnnpack.h>
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#include <xnnpack/params-init.h>
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#include <xnnpack/params.h>
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class VScaleMicrokernelTester {
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public:
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enum class Variant {
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Native,
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Scalar,
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};
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inline VScaleMicrokernelTester& n(size_t n) {
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assert(n != 0);
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this->n_ = n;
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return *this;
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}
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inline size_t n() const {
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return this->n_;
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}
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inline VScaleMicrokernelTester& inplace(bool inplace) {
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this->inplace_ = inplace;
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return *this;
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}
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inline bool inplace() const {
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return this->inplace_;
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}
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inline VScaleMicrokernelTester& iterations(size_t iterations) {
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this->iterations_ = iterations;
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return *this;
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}
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inline size_t iterations() const {
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return this->iterations_;
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}
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void Test(xnn_f32_vscale_ukernel_function vscale, Variant variant = Variant::Native) const {
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std::random_device random_device;
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auto rng = std::mt19937(random_device());
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auto f32rng = std::bind(std::uniform_real_distribution<float>(-1.0f, 1.0f), rng);
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std::vector<float> x(n() + XNN_EXTRA_BYTES / sizeof(float));
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std::vector<float> y(n() + (inplace() ? XNN_EXTRA_BYTES / sizeof(float) : 0));
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std::vector<float> y_ref(n());
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for (size_t iteration = 0; iteration < iterations(); iteration++) {
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if (inplace()) {
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std::generate(y.begin(), y.end(), std::ref(f32rng));
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} else {
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std::generate(x.begin(), x.end(), std::ref(f32rng));
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std::fill(y.begin(), y.end(), nanf(""));
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}
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const float c = f32rng();
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const float* x_data = inplace() ? y.data() : x.data();
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// Compute reference results.
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for (size_t i = 0; i < n(); i++) {
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y_ref[i] = x_data[i] * c;
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}
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// Call optimized micro-kernel.
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vscale(n() * sizeof(float), x_data, y.data(), c);
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// Verify results.
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for (size_t i = 0; i < n(); i++) {
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ASSERT_NEAR(y[i], y_ref[i], std::abs(y_ref[i]) * 1.0e-6f)
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<< "at " << i << ", n = " << n();
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}
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}
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}
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private:
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size_t n_{1};
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size_t iterations_{15};
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bool inplace_{false};
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};
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