| // Copyright (c) Facebook, Inc. and its affiliates. |
| // All rights reserved. |
| // |
| // Copyright 2019 Google LLC |
| // |
| // This source code is licensed under the BSD-style license found in the |
| // LICENSE file in the root directory of this source tree. |
| |
| #pragma once |
| |
| #include <gtest/gtest.h> |
| |
| #include <algorithm> |
| #include <cassert> |
| #include <cstddef> |
| #include <cstdlib> |
| #include <functional> |
| #include <random> |
| #include <vector> |
| |
| #include <xnnpack.h> |
| #include <xnnpack/params-init.h> |
| #include <xnnpack/params.h> |
| |
| |
| class ClampMicrokernelTester { |
| public: |
| enum class Variant { |
| Native, |
| Scalar, |
| }; |
| |
| inline ClampMicrokernelTester& n(size_t n) { |
| assert(n != 0); |
| this->n_ = n; |
| return *this; |
| } |
| |
| inline size_t n() const { |
| return this->n_; |
| } |
| |
| inline ClampMicrokernelTester& inplace(bool inplace) { |
| this->inplace_ = inplace; |
| return *this; |
| } |
| |
| inline bool inplace() const { |
| return this->inplace_; |
| } |
| |
| inline ClampMicrokernelTester& qmin(uint8_t qmin) { |
| this->qmin_ = qmin; |
| return *this; |
| } |
| |
| inline uint8_t qmin() const { |
| return this->qmin_; |
| } |
| |
| inline ClampMicrokernelTester& qmax(uint8_t qmax) { |
| this->qmax_ = qmax; |
| return *this; |
| } |
| |
| inline uint8_t qmax() const { |
| return this->qmax_; |
| } |
| |
| inline ClampMicrokernelTester& iterations(size_t iterations) { |
| this->iterations_ = iterations; |
| return *this; |
| } |
| |
| inline size_t iterations() const { |
| return this->iterations_; |
| } |
| |
| void Test(xnn_u8_clamp_ukernel_function clamp, Variant variant = Variant::Native) const { |
| std::random_device random_device; |
| auto rng = std::mt19937(random_device()); |
| auto u8rng = std::bind(std::uniform_int_distribution<uint8_t>(), rng); |
| |
| std::vector<uint8_t> x(n() + XNN_EXTRA_BYTES / sizeof(uint8_t)); |
| std::vector<uint8_t> y(n() + (inplace() ? XNN_EXTRA_BYTES / sizeof(uint8_t) : 0)); |
| std::vector<uint8_t> y_ref(n()); |
| for (size_t iteration = 0; iteration < iterations(); iteration++) { |
| std::generate(x.begin(), x.end(), std::ref(u8rng)); |
| if (inplace()) { |
| std::generate(y.begin(), y.end(), std::ref(u8rng)); |
| } else { |
| std::fill(y.begin(), y.end(), 0xA5); |
| } |
| const uint8_t* x_data = inplace() ? y.data() : x.data(); |
| |
| // Prepare clamping parameters. |
| union xnn_u8_output_params output_params = { }; |
| switch (variant) { |
| case Variant::Native: |
| output_params = xnn_init_u8_output_params(qmin(), qmax()); |
| break; |
| case Variant::Scalar: |
| output_params = xnn_init_scalar_u8_output_params(qmin(), qmax()); |
| break; |
| } |
| |
| // Compute reference results. |
| for (size_t i = 0; i < n(); i++) { |
| y_ref[i] = std::max(std::min(x_data[i], qmax()), qmin()); |
| } |
| |
| // Call optimized micro-kernel. |
| clamp(n() * sizeof(uint8_t), x_data, y.data(), &output_params); |
| |
| // Verify results. |
| for (size_t i = 0; i < n(); i++) { |
| ASSERT_LE(uint32_t(y[i]), uint32_t(qmax())) |
| << "at position " << i << ", n = " << n(); |
| ASSERT_GE(uint32_t(y[i]), uint32_t(qmin())) |
| << "at position " << i << ", n = " << n(); |
| ASSERT_EQ(uint32_t(y_ref[i]), uint32_t(y[i])) |
| << "at position " << i << ", n = " << n() |
| << ", qmin = " << uint32_t(qmin()) << ", qmax = " << uint32_t(qmax()); |
| } |
| } |
| } |
| |
| void Test(xnn_f32_clamp_ukernel_function clamp, Variant variant = Variant::Native) const { |
| std::random_device random_device; |
| auto rng = std::mt19937(random_device()); |
| auto f32rng = std::bind(std::uniform_real_distribution<float>(0.0f, 255.0f), rng); |
| |
| std::vector<float> x(n() + XNN_EXTRA_BYTES / sizeof(float)); |
| std::vector<float> y(n() + (inplace() ? XNN_EXTRA_BYTES / sizeof(float) : 0)); |
| std::vector<float> y_ref(n()); |
| for (size_t iteration = 0; iteration < iterations(); iteration++) { |
| std::generate(x.begin(), x.end(), std::ref(f32rng)); |
| if (inplace()) { |
| std::generate(y.begin(), y.end(), std::ref(f32rng)); |
| } else { |
| std::fill(y.begin(), y.end(), std::nanf("")); |
| } |
| const float* x_data = inplace() ? y.data() : x.data(); |
| |
| // Prepare output parameters. |
| xnn_f32_output_params output_params = { }; |
| switch (variant) { |
| case Variant::Native: |
| output_params = xnn_init_f32_output_params(float(qmin()), float(qmax())); |
| break; |
| case Variant::Scalar: |
| output_params = xnn_init_scalar_f32_output_params(float(qmin()), float(qmax())); |
| break; |
| } |
| |
| // Compute reference results. |
| for (size_t i = 0; i < n(); i++) { |
| y_ref[i] = std::max(std::min(x_data[i], float(qmax())), float(qmin())); |
| } |
| |
| // Call optimized micro-kernel. |
| clamp(n() * sizeof(float), x_data, y.data(), &output_params); |
| |
| // Verify results. |
| for (size_t i = 0; i < n(); i++) { |
| ASSERT_LE(y[i], float(qmax())) |
| << "at position " << i << ", n = " << n(); |
| ASSERT_GE(y[i], float(qmin())) |
| << "at position " << i << ", n = " << n(); |
| ASSERT_EQ(y_ref[i], y[i]) |
| << "at position " << i << ", n = " << n() |
| << ", qmin = " << uint32_t(qmin()) << ", qmax = " << uint32_t(qmax()); |
| } |
| } |
| } |
| |
| private: |
| size_t n_{1}; |
| bool inplace_{false}; |
| uint8_t qmin_{5}; |
| uint8_t qmax_{250}; |
| size_t iterations_{15}; |
| }; |