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Diffstat (limited to 'compiler/mir-interpreter/src/ops/Sigmoid.cpp')
-rw-r--r-- | compiler/mir-interpreter/src/ops/Sigmoid.cpp | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/compiler/mir-interpreter/src/ops/Sigmoid.cpp b/compiler/mir-interpreter/src/ops/Sigmoid.cpp new file mode 100644 index 000000000..23718f935 --- /dev/null +++ b/compiler/mir-interpreter/src/ops/Sigmoid.cpp @@ -0,0 +1,58 @@ +/* + * Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "Sigmoid.h" +#include "Common.h" + +#include <mir/ShapeRange.h> +#include <mir/Tensor.h> + +#include <cmath> + +namespace mir_interpreter +{ + +template <typename T> struct SigmoidImpl +{ + static void run(const mir::TensorVariant &arg, mir::TensorVariant &result); +}; + +template <typename T> +void SigmoidImpl<T>::run(const mir::TensorVariant &arg, mir::TensorVariant &result) +{ + mir::Tensor<T> arg_accessor(arg); + mir::Tensor<T> res_accessor(result); + + for (const auto &index : mir::ShapeRange(result.getShape())) + { + res_accessor.at(index) = 1.0f / (1.0f + std::exp(-arg_accessor.at(index))); + } +} + +template <> struct SigmoidImpl<uint8_t> +{ + static void run(const mir::TensorVariant &arg, mir::TensorVariant &result) + { + throw std::runtime_error{"NYI"}; + } +}; + +void Sigmoid(const mir::TensorVariant &arg, mir::TensorVariant &result) +{ + dispatch<SigmoidImpl>(arg.getElementType(), arg, result); +}; + +} // namespace mir_interpreter |