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Diffstat (limited to 'arm_compute/core/NEON/kernels/detail/NEActivationFunctionDetail.h')
-rw-r--r-- | arm_compute/core/NEON/kernels/detail/NEActivationFunctionDetail.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/arm_compute/core/NEON/kernels/detail/NEActivationFunctionDetail.h b/arm_compute/core/NEON/kernels/detail/NEActivationFunctionDetail.h new file mode 100644 index 0000000000..e4d3f54943 --- /dev/null +++ b/arm_compute/core/NEON/kernels/detail/NEActivationFunctionDetail.h @@ -0,0 +1,113 @@ +/* + * Copyright (c) 2018 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_DETAIL_NEACTIVATION_FUNCTION_DETAIL_H__ +#define __ARM_COMPUTE_DETAIL_NEACTIVATION_FUNCTION_DETAIL_H__ + +#include "arm_compute/core/NEON/wrapper/wrapper.h" + +namespace arm_compute +{ +namespace detail +{ +// Dummy activation object +/** Dummy activation object */ +template <typename T, int S> +struct dummy +{ + using ExactType = typename wrapper::traits::neon_vector<T, S>::type; + + explicit dummy(ActivationLayerInfo act_info) + { + ARM_COMPUTE_UNUSED(act_info); + } + void operator()(ExactType &vval) + { + ARM_COMPUTE_UNUSED(vval); + } +}; +/** RELU activation object */ +template <typename T, int S> +struct relu +{ + using ExactType = typename wrapper::traits::neon_vector<T, S>::type; + using ExactTagType = typename wrapper::traits::neon_vector<T, S>::tag_type; + + explicit relu(ActivationLayerInfo act_info) + : vzero(wrapper::vdup_n(static_cast<T>(0.f), ExactTagType{})) + { + ARM_COMPUTE_UNUSED(act_info); + } + + void operator()(ExactType &vval) + { + vval = wrapper::vmax(vzero, vval); + } + + const ExactType vzero; +}; +/** Bounded RELU activation object */ +template <typename T, int S> +struct brelu +{ + using ExactType = typename wrapper::traits::neon_vector<T, S>::type; + using ExactTagType = typename wrapper::traits::neon_vector<T, S>::tag_type; + + explicit brelu(ActivationLayerInfo act_info) + : vzero(wrapper::vdup_n(static_cast<T>(0.f), ExactTagType{})), + valpha(wrapper::vdup_n(static_cast<T>(act_info.a()), ExactTagType{})) + { + } + + void operator()(ExactType &vval) + { + vval = wrapper::vmin(valpha, wrapper::vmax(vzero, vval)); + } + + const ExactType vzero; + const ExactType valpha; +}; +/** Lower-Upper Bounded RELU activation object */ +template <typename T, int S> +struct lubrelu +{ + using ExactType = typename wrapper::traits::neon_vector<T, S>::type; + using ExactTagType = typename wrapper::traits::neon_vector<T, S>::tag_type; + + explicit lubrelu(ActivationLayerInfo act_info) + : valpha(wrapper::vdup_n(static_cast<T>(act_info.a()), ExactTagType{})), + vbeta(wrapper::vdup_n(static_cast<T>(act_info.b()), ExactTagType{})) + { + } + + void operator()(ExactType &vval) + { + vval = wrapper::vmin(valpha, wrapper::vmax(vbeta, vval)); + } + + const ExactType valpha; + const ExactType vbeta; +}; +} // namespace detail +} // namespace arm_compute +#endif /* __ARM_COMPUTE_DETAIL_NEACTIVATION_FUNCTION_DETAIL_H__ */ |