| /* |
| * Copyright (c) 2018-2022 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 SRC_CORE_NEON_KERNELS_ELEMENTWISE_UNARY_LIST_H |
| #define SRC_CORE_NEON_KERNELS_ELEMENTWISE_UNARY_LIST_H |
| |
| #include "arm_compute/core/Types.h" |
| #include "src/core/NEON/wrapper/intrinsics/intrinsics.h" |
| |
| namespace arm_compute |
| { |
| namespace cpu |
| { |
| template <typename ScalarType> |
| inline ScalarType elementwise_op_scalar_imp(ElementWiseUnary op, const ScalarType &a) |
| { |
| switch(op) |
| { |
| case ElementWiseUnary::RSQRT: |
| return 1 / sqrt(a); |
| case ElementWiseUnary::EXP: |
| return std::exp(a); |
| case ElementWiseUnary::NEG: |
| return -a; |
| case ElementWiseUnary::LOG: |
| return std::log(a); |
| case ElementWiseUnary::ABS: |
| return std::abs(a); |
| case ElementWiseUnary::ROUND: |
| return support::cpp11::nearbyint(a); |
| case ElementWiseUnary::SIN: |
| return std::sin(a); |
| default: |
| ARM_COMPUTE_ERROR("NOT_SUPPORTED!"); |
| } |
| } |
| |
| template <typename ScalarType, typename VectorType> |
| inline VectorType elementwise_op_imp(ElementWiseUnary op, const VectorType &a) |
| { |
| switch(op) |
| { |
| case ElementWiseUnary::RSQRT: |
| return wrapper::vinvsqrt(a); |
| case ElementWiseUnary::EXP: |
| return wrapper::vexpq(a); |
| case ElementWiseUnary::NEG: |
| return wrapper::vneg(a); |
| case ElementWiseUnary::LOG: |
| return wrapper::vlog(a); |
| case ElementWiseUnary::ABS: |
| return wrapper::vabs(a); |
| case ElementWiseUnary::ROUND: |
| return wrapper::vround(a); |
| case ElementWiseUnary::SIN: |
| return wrapper::vsin(a); |
| default: |
| ARM_COMPUTE_ERROR("NOT_SUPPORTED!"); |
| } |
| } |
| |
| template <typename ScalarType> |
| void elementwise_op(const ITensor *in, ITensor *out, const Window &window, ElementWiseUnary op) |
| { |
| const int window_step_x = 16 / sizeof(ScalarType); |
| const auto window_start_x = static_cast<int>(window.x().start()); |
| const auto window_end_x = static_cast<int>(window.x().end()); |
| |
| Window win = window; |
| win.set(Window::DimX, Window::Dimension(0, 1, 1)); |
| |
| Iterator input(in, win); |
| Iterator output(out, win); |
| |
| execute_window_loop(win, [&](const Coordinates &) |
| { |
| auto output_ptr = reinterpret_cast<ScalarType *>(output.ptr()); |
| const auto input_ptr = reinterpret_cast<const ScalarType *>(input.ptr()); |
| |
| int x = window_start_x; |
| for(; x <= window_end_x - window_step_x; x += window_step_x) |
| { |
| wrapper::vstore(output_ptr + x, elementwise_op_imp<ScalarType>(op, wrapper::vloadq(input_ptr + x))); |
| } |
| for(; x < window_end_x; ++x) |
| { |
| *(output_ptr + x) = elementwise_op_scalar_imp(op, *(input_ptr + x)); |
| } |
| }, |
| input, output); |
| } |
| |
| } // namespace cpu |
| } // namespace arm_compute |
| |
| #endif // SRC_CORE_NEON_KERNELS_ELEMENTWISE_UNARY_LIST_H |