| /* |
| * Copyright (c) 2017 ARM Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #ifndef __ARM_COMPUTE_TEST_VALIDATION_HELPERS_H__ |
| #define __ARM_COMPUTE_TEST_VALIDATION_HELPERS_H__ |
| |
| #include "Types.h" |
| |
| #include <type_traits> |
| #include <utility> |
| |
| namespace arm_compute |
| { |
| namespace test |
| { |
| namespace validation |
| { |
| /** Helper function to get the testing range for each activation layer. |
| * |
| * @param[in] activation Activation function to test. |
| * @param[in] fixed_point_position (Optional) Number of bits for the fractional part. Defaults to 1. |
| * |
| * @return A pair containing the lower upper testing bounds for a given function. |
| */ |
| template <typename T> |
| std::pair<T, T> get_activation_layer_test_bounds(ActivationLayerInfo::ActivationFunction activation, int fixed_point_position = 1) |
| { |
| bool is_float = std::is_floating_point<T>::value; |
| std::pair<T, T> bounds; |
| |
| // Set initial values |
| if(is_float) |
| { |
| bounds = std::make_pair(-255.f, 255.f); |
| } |
| else |
| { |
| bounds = std::make_pair(std::numeric_limits<T>::lowest(), std::numeric_limits<T>::max()); |
| } |
| |
| // Reduce testing ranges |
| switch(activation) |
| { |
| case ActivationLayerInfo::ActivationFunction::LOGISTIC: |
| case ActivationLayerInfo::ActivationFunction::SOFT_RELU: |
| // Reduce range as exponent overflows |
| if(is_float) |
| { |
| bounds.first = -40.f; |
| bounds.second = 40.f; |
| } |
| else |
| { |
| bounds.first = -(1 << (fixed_point_position)); |
| bounds.second = 1 << (fixed_point_position); |
| } |
| break; |
| case ActivationLayerInfo::ActivationFunction::TANH: |
| // Reduce range as exponent overflows |
| if(!is_float) |
| { |
| bounds.first = -(1 << (fixed_point_position)); |
| bounds.second = 1 << (fixed_point_position); |
| } |
| break; |
| case ActivationLayerInfo::ActivationFunction::SQRT: |
| // Reduce range as sqrt should take a non-negative number |
| bounds.first = (is_float) ? 0 : 1 << (fixed_point_position); |
| break; |
| default: |
| break; |
| } |
| return bounds; |
| } |
| |
| /** Helper function to get the testing range for batch normalization layer. |
| * |
| * @param[in] fixed_point_position (Optional) Number of bits for the fractional part. Defaults to 1. |
| * |
| * @return A pair containing the lower upper testing bounds. |
| */ |
| template <typename T> |
| std::pair<T, T> get_batchnormalization_layer_test_bounds(int fixed_point_position = 1) |
| { |
| bool is_float = std::is_floating_point<T>::value; |
| std::pair<T, T> bounds; |
| |
| // Set initial values |
| if(is_float) |
| { |
| bounds = std::make_pair(-1.f, 1.f); |
| } |
| else |
| { |
| bounds = std::make_pair(1, 1 << (fixed_point_position)); |
| } |
| |
| return bounds; |
| } |
| } // namespace validation |
| } // namespace test |
| } // namespace arm_compute |
| #endif //__ARM_COMPUTE_TEST_VALIDATION_HELPERS_H__ |