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Diffstat (limited to 'src/cpu/kernels/elementwise/neon/elementwise_unary_list.h')
| -rw-r--r-- | src/cpu/kernels/elementwise/neon/elementwise_unary_list.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/src/cpu/kernels/elementwise/neon/elementwise_unary_list.h b/src/cpu/kernels/elementwise/neon/elementwise_unary_list.h new file mode 100644 index 0000000000..307e95fae9 --- /dev/null +++ b/src/cpu/kernels/elementwise/neon/elementwise_unary_list.h @@ -0,0 +1,116 @@ +/* + * Copyright (c) 2021 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
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