| /* |
| * Copyright (c) 2020-2023 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. |
| */ |
| |
| #include "arm_compute/core/ActivationLayerInfo.h" |
| #include "arm_compute/core/Helpers.h" |
| #include "arm_compute/core/ITensorPack.h" |
| #include "arm_compute/core/Window.h" |
| #include "src/core/NEON/SVEMath.h" |
| |
| #include <cmath> |
| #include <cstddef> |
| |
| #include <arm_sve.h> |
| |
| namespace arm_compute |
| { |
| namespace cpu |
| { |
| void sve_fp32_activation(const ITensor *src, ITensor *dst, const ActivationLayerInfo &act_info, const Window &window) |
| { |
| const auto window_start_x = static_cast<int>(window.x().start()); |
| const auto window_end_x = static_cast<int>(window.x().end()); |
| const ActivationLayerInfo::ActivationFunction act = act_info.activation(); |
| |
| Window win_collapsed = window.collapse_if_possible(window, Window::DimZ); |
| win_collapsed.set(Window::DimX, Window::Dimension(0, 1, 1)); |
| |
| Iterator input(src, win_collapsed); |
| Iterator output(dst, win_collapsed); |
| |
| const auto const_1 = svdup_n_f32(1.f); |
| const auto const_0 = svdup_n_f32(0.f); |
| const auto const_6 = svdup_n_f32(6.f); |
| const auto const_3 = svdup_n_f32(3.f); |
| const auto const_inv_6 = svdup_n_f32(0.166666667f); |
| const auto soft_relu_thresh = svdup_n_f32(16.63553047f); |
| |
| const auto va = svdup_n_f32(act_info.a()); |
| const auto vb = svdup_n_f32(act_info.b()); |
| execute_window_loop(win_collapsed, [&](const Coordinates &) |
| { |
| const auto input_ptr = reinterpret_cast<const float *>(input.ptr()); |
| const auto output_ptr = reinterpret_cast<float *>(output.ptr()); |
| |
| svfloat32_t tmp; |
| |
| // Compute S elements per iteration |
| int x = window_start_x; |
| svbool_t pg = svwhilelt_b32(x, window_end_x); |
| do |
| { |
| const auto vin = svld1_f32(pg, input_ptr + x); |
| switch(act) |
| { |
| case ActivationLayerInfo::ActivationFunction::ABS: |
| tmp = svabs_f32_z(pg, vin); |
| break; |
| case ActivationLayerInfo::ActivationFunction::LINEAR: |
| tmp = svmla_f32_z(pg, vb, va, vin); |
| break; |
| case ActivationLayerInfo::ActivationFunction::LOGISTIC: |
| tmp = svinv_f32_z(pg, svadd_f32_z(pg, const_1, svexp_f32_z(pg, svneg_f32_z(pg, vin)))); |
| break; |
| case ActivationLayerInfo::ActivationFunction::RELU: |
| tmp = svmax_f32_z(pg, const_0, vin); |
| break; |
| case ActivationLayerInfo::ActivationFunction::BOUNDED_RELU: |
| tmp = svmin_f32_z(pg, va, svmax_f32_z(pg, const_0, vin)); |
| break; |
| case ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU: |
| tmp = svmin_f32_z(pg, va, svmax_f32_z(pg, vb, vin)); |
| break; |
| case ActivationLayerInfo::ActivationFunction::LEAKY_RELU: |
| tmp = svadd_f32_z(pg, svmul_f32_z(pg, svmin_f32_z(pg, vin, const_0), va), svmax_f32_z(pg, vin, const_0)); |
| break; |
| case ActivationLayerInfo::ActivationFunction::SOFT_RELU: |
| tmp = svsel_f32(svcmpgt_f32(pg, vin, soft_relu_thresh), vin, svlog_f32_z(pg, svadd_f32_z(pg, const_1, svexp_f32_z(pg, vin)))); |
| break; |
| case ActivationLayerInfo::ActivationFunction::ELU: |
| tmp = svsel_f32(svcmpgt_f32(pg, vin, const_0), vin, svmul_f32_z(pg, va, svsub_f32_z(pg, svexp_f32_z(pg, vin), const_1))); |
| break; |
| case ActivationLayerInfo::ActivationFunction::SQRT: |
| tmp = svsqrt_f32_z(pg, vin); |
| break; |
| case ActivationLayerInfo::ActivationFunction::SQUARE: |
| tmp = svmul_f32_z(pg, vin, vin); |
| break; |
| case ActivationLayerInfo::ActivationFunction::TANH: |
| tmp = svmul_f32_z(pg, va, svtanh_f32_z(pg, svmul_f32_z(pg, vb, vin))); |
| break; |
| case ActivationLayerInfo::ActivationFunction::IDENTITY: |
| tmp = vin; |
| break; |
| case ActivationLayerInfo::ActivationFunction::HARD_SWISH: |
| tmp = svmul_f32_z(pg, vin, svmul_f32_z(pg, const_inv_6, svmin_f32_z(pg, const_6, svmax_f32_z(pg, const_0, svadd_f32_z(pg, vin, const_3))))); |
| break; |
| case ActivationLayerInfo::ActivationFunction::SWISH: |
| tmp = svmul_f32_z(pg, vin, svinv_f32_z(pg, svadd_f32_z(pg, const_1, svexp_f32_z(pg, svneg_f32_z(pg, svmul_f32_z(pg, va, vin)))))); |
| break; |
| default: |
| ARM_COMPUTE_ERROR("Unsupported activation function"); |
| } |
| svst1_f32(pg, output_ptr + x, tmp); |
| |
| x += svcntw(); |
| pg = svwhilelt_b32(x, window_end_x); |
| |
| } |
| while(svptest_any(svptrue_b32(), pg)); |
| }, |
| input, output); |
| } |
| } // namespace cpu |
| } // namespace arm_compute |