diff options
Diffstat (limited to 'src/core/cpu/kernels/activation/neon/qsymm16.cpp')
| -rw-r--r-- | src/core/cpu/kernels/activation/neon/qsymm16.cpp | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/src/core/cpu/kernels/activation/neon/qsymm16.cpp b/src/core/cpu/kernels/activation/neon/qsymm16.cpp deleted file mode 100644 index 54b41820f2..0000000000 --- a/src/core/cpu/kernels/activation/neon/qsymm16.cpp +++ /dev/null @@ -1,138 +0,0 @@ -/* - * Copyright (c) 2020-2021 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. - */ -#include "arm_compute/core/Helpers.h" -#include "arm_compute/core/ITensorPack.h" -#include "arm_compute/core/Window.h" -#include "arm_compute/core/experimental/Types.h" -#include "src/core/NEON/NEMath.h" -#include "src/core/NEON/NESymm.h" -#include "src/core/NEON/wrapper/wrapper.h" - -#include <arm_neon.h> -#include <cmath> -#include <cstddef> - -namespace arm_compute -{ -namespace cpu -{ -void qsymm16_neon_activation(const ITensor *src, ITensor *dst, const ActivationLayerInfo &act_info, const Window &window) -{ - constexpr int window_step_x = 8; - 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 UniformQuantizationInfo qi_in = src->info()->quantization_info().uniform(); - const UniformQuantizationInfo qi_out = dst->info()->quantization_info().uniform(); - const auto vconst_1 = vdupq_n_f32(1.f); - const float32x4_t va_f32 = vdupq_n_f32(act_info.a()); - const float32x4_t vb_f32 = vdupq_n_f32(act_info.b()); - const float a_f32 = act_info.a(); - const float b_f32 = act_info.b(); - - execute_window_loop(win_collapsed, [&](const Coordinates &) - { - const auto input_ptr = reinterpret_cast<const qsymm16_t *>(input.ptr()); - const auto output_ptr = reinterpret_cast<qsymm16_t *>(output.ptr()); - - wrapper::traits::neon_bitvector_t<qsymm16_t, wrapper::traits::BitWidth::W128> tmp; - ARM_COMPUTE_UNUSED(tmp); - - // Compute S elements per iteration - int x = window_start_x; - for(; x <= (window_end_x - window_step_x); x += window_step_x) - { - const auto vin = wrapper::vloadq(input_ptr + x); - if(act == ActivationLayerInfo::ActivationFunction::LOGISTIC) - { - // De-quantize - const auto vin_deq = vdequantize_int16(vin, qi_in.scale); - // Perform activation - const float32x4x2_t tmp_dep = - { - { - wrapper::vdiv(vconst_1, wrapper::vadd(vconst_1, wrapper::vexpq(wrapper::vneg(vin_deq.val[0])))), - wrapper::vdiv(vconst_1, wrapper::vadd(vconst_1, wrapper::vexpq(wrapper::vneg(vin_deq.val[1])))), - } - }; - // Re-quantize to new output space - tmp = vquantize_int16(tmp_dep, qi_out.scale); - } - else if(act == ActivationLayerInfo::ActivationFunction::TANH) - { - // De-quantize - const auto vin_deq = vdequantize_int16(vin, qi_in.scale); - // Perform activation - const float32x4x2_t tmp_dep = - { - { - wrapper::vmul(va_f32, wrapper::vtanh(wrapper::vmul(vin_deq.val[0], vb_f32))), - wrapper::vmul(va_f32, wrapper::vtanh(wrapper::vmul(vin_deq.val[1], vb_f32))), - } - }; - // Re-quantize to new output space - tmp = vquantize_int16(tmp_dep, qi_out.scale); - } - else - { - ARM_COMPUTE_ERROR("Unsupported activation function"); - } - wrapper::vstore(output_ptr + x, tmp); - } - - // Compute left-over elements - for(; x < window_end_x; ++x) - { - qsymm16_t in = *(reinterpret_cast<const qsymm16_t *>(input_ptr + x)); - qsymm16_t tmp = 0; - if(act == ActivationLayerInfo::ActivationFunction::LOGISTIC) - { - float tmp_f = dequantize_qsymm16(in, qi_in.scale); - tmp_f = 1.f / (1.f + std::exp(-tmp_f)); - tmp = quantize_qsymm16(tmp_f, qi_out); - } - else if(act == ActivationLayerInfo::ActivationFunction::TANH) - { - float tmp_f = dequantize_qsymm16(in, qi_in.scale); - tmp_f = a_f32 * std::tanh(b_f32 * tmp_f); - tmp = quantize_qsymm16(tmp_f, qi_out); - } - else - { - ARM_COMPUTE_ERROR("Unsupported activation function"); - } - *(output_ptr + x) = tmp; - } - }, - input, output); -} -} // namespace cpu -} // namespace arm_compute |