diff options
Diffstat (limited to 'src/core/cpu/kernels/activation/neon')
| -rw-r--r-- | src/core/cpu/kernels/activation/neon/fp16.cpp | 217 | ||||
| -rw-r--r-- | src/core/cpu/kernels/activation/neon/fp32.cpp | 212 | ||||
| -rw-r--r-- | src/core/cpu/kernels/activation/neon/qasymm8.cpp | 262 | ||||
| -rw-r--r-- | src/core/cpu/kernels/activation/neon/qasymm8_signed.cpp | 261 | ||||
| -rw-r--r-- | src/core/cpu/kernels/activation/neon/qsymm16.cpp | 138 |
5 files changed, 0 insertions, 1090 deletions
diff --git a/src/core/cpu/kernels/activation/neon/fp16.cpp b/src/core/cpu/kernels/activation/neon/fp16.cpp deleted file mode 100644 index 6f2d5d8533..0000000000 --- a/src/core/cpu/kernels/activation/neon/fp16.cpp +++ /dev/null @@ -1,217 +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 "src/core/NEON/NEMath.h" - -#include "arm_compute/core/Helpers.h" -#include "arm_compute/core/Validate.h" -#include "src/core/NEON/wrapper/wrapper.h" - -#include <arm_neon.h> -#include <cmath> -#include <cstddef> - -#if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS) - -namespace arm_compute -{ -namespace cpu -{ -namespace -{ -#ifndef __aarch64__ -inline float16x8_t mask_float_vector(const float16x8_t &in, const uint16x8_t &mask) -{ - auto int_in = vreinterpretq_u16_f16(in); - return vreinterpretq_f16_u16(wrapper::vand(int_in, mask)); -} -#endif /* __aarch64__ */ -} // namespace - -void fp16_neon_activation(const ITensor *src, ITensor *dst, const ActivationLayerInfo &act_info, const Window &window) -{ - /** SIMD vector tag type. */ - using ExactTagType = typename wrapper::traits::neon_bitvector_tag_t<float16_t, wrapper::traits::BitWidth::W128>; - const ActivationLayerInfo::ActivationFunction act = act_info.activation(); - - 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()); - - 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); - - // In case of non-aarch64, a small delta value is added to the input - // to prevent NAN values caused by zeros in inputs to SQRT. - // In case of aarh64, we call vsqrt directly, so we don't use delta. -#ifndef __aarch64__ - const auto delta = wrapper::vdup_n(static_cast<float16_t>((1e-7), ExactTagType {})); -#endif /* __aarch64__ */ - - const auto const_1 = wrapper::vdup_n(static_cast<float16_t>(1.f), ExactTagType{}); - const auto const_0 = wrapper::vdup_n(static_cast<float16_t>(0.f), ExactTagType{}); - const auto const_6 = wrapper::vdup_n(static_cast<float16_t>(6.f), ExactTagType{}); - const auto const_3 = wrapper::vdup_n(static_cast<float16_t>(3.f), ExactTagType{}); - const auto const_inv_6 = wrapper::vdup_n(static_cast<float16_t>(0.166666667f), ExactTagType{}); - - constexpr float soft_relu_thresh = 12.f; - const auto vsoft_relu_thresh = wrapper::vdup_n(static_cast<float16_t>(soft_relu_thresh), ExactTagType{}); - - const auto va = wrapper::vdup_n(static_cast<float16_t>(act_info.a()), ExactTagType{}); - const auto vb = wrapper::vdup_n(static_cast<float16_t>(act_info.b()), ExactTagType{}); - const auto a = static_cast<float16_t>(act_info.a()); - const auto b = static_cast<float16_t>(act_info.b()); - execute_window_loop(win_collapsed, [&](const Coordinates &) - { - const auto input_ptr = reinterpret_cast<const float16_t *>(input.ptr()); - const auto output_ptr = reinterpret_cast<float16_t *>(output.ptr()); - - wrapper::traits::neon_bitvector_t<float16_t, wrapper::traits::BitWidth::W128> 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); - switch(act) - { - case ActivationLayerInfo::ActivationFunction::ABS: - tmp = wrapper::vabs(vin); - break; - case ActivationLayerInfo::ActivationFunction::LINEAR: - tmp = wrapper::vmla(vb, va, vin); - break; - case ActivationLayerInfo::ActivationFunction::LOGISTIC: - tmp = wrapper::vinv(wrapper::vadd(const_1, wrapper::vexpq(wrapper::vneg(vin)))); - break; - case ActivationLayerInfo::ActivationFunction::RELU: - tmp = wrapper::vmax(const_0, vin); - break; - case ActivationLayerInfo::ActivationFunction::BOUNDED_RELU: - tmp = wrapper::vmin(va, wrapper::vmax(const_0, vin)); - break; - case ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU: - tmp = wrapper::vmin(va, wrapper::vmax(vb, vin)); - break; - case ActivationLayerInfo::ActivationFunction::LEAKY_RELU: - tmp = wrapper::vbsl(wrapper::vcgt(vin, const_0), vin, wrapper::vmul(va, vin)); - break; - case ActivationLayerInfo::ActivationFunction::SOFT_RELU: - tmp = wrapper::vbsl(wrapper::vcgt(vin, vsoft_relu_thresh), vin, wrapper::vlog(wrapper::vadd(const_1, wrapper::vexpq(vin)))); - break; - case ActivationLayerInfo::ActivationFunction::ELU: - tmp = wrapper::vbsl(wrapper::vcge(vin, const_0), vin, wrapper::vmul(va, wrapper::vsub(wrapper::vexpq(vin), const_1))); - break; - case ActivationLayerInfo::ActivationFunction::SQRT: -#ifdef __aarch64__ - tmp = wrapper::vsqrt(vin); -#else /* __aarch64__ */ - { - const auto bitmask = wrapper::vceq(vin, wrapper::vdup_n(0, ExactTagType{})); - tmp = wrapper::vinv(wrapper::vinvsqrt(wrapper::vadd(vin, mask_float_vector(delta, bitmask)))); - tmp = mask_float_vector(tmp, wrapper::vnot(bitmask)); - } -#endif /* __aarch64__ */ - break; - case ActivationLayerInfo::ActivationFunction::SQUARE: - tmp = wrapper::vmul(vin, vin); - break; - case ActivationLayerInfo::ActivationFunction::TANH: - tmp = wrapper::vmul(va, wrapper::vtanh(wrapper::vmul(vb, vin))); - break; - case ActivationLayerInfo::ActivationFunction::IDENTITY: - tmp = vin; - break; - case ActivationLayerInfo::ActivationFunction::HARD_SWISH: - tmp = wrapper::vmul(vin, wrapper::vmul(const_inv_6, wrapper::vmin(const_6, wrapper::vmax(const_0, wrapper::vadd(vin, const_3))))); - break; - default: - ARM_COMPUTE_ERROR("Unsupported activation function"); - } - wrapper::vstore(output_ptr + x, tmp); - } - - // Compute left-over elements - for(; x < window_end_x; ++x) - { - const float16_t in = *(reinterpret_cast<const float16_t *>(input_ptr + x)); - float16_t tmp; - switch(act) - { - case ActivationLayerInfo::ActivationFunction::ABS: - tmp = std::abs(in); - break; - case ActivationLayerInfo::ActivationFunction::LINEAR: - tmp = a * in + b; - break; - case ActivationLayerInfo::ActivationFunction::LOGISTIC: - tmp = static_cast<float16_t>(1) / (static_cast<float16_t>(1) + std::exp(-in)); - break; - case ActivationLayerInfo::ActivationFunction::RELU: - tmp = std::max<float16_t>(static_cast<float16_t>(0), in); - break; - case ActivationLayerInfo::ActivationFunction::BOUNDED_RELU: - tmp = std::min<float16_t>(a, std::max(static_cast<float16_t>(0), in)); - break; - case ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU: - tmp = std::min<float16_t>(a, std::max<float16_t>(b, in)); - break; - case ActivationLayerInfo::ActivationFunction::LEAKY_RELU: - tmp = (in > 0) ? in : a * in; - break; - case ActivationLayerInfo::ActivationFunction::SOFT_RELU: - tmp = (in > soft_relu_thresh) ? in : std::log(static_cast<float16_t>(1) + std::exp(in)); - break; - case ActivationLayerInfo::ActivationFunction::ELU: - tmp = (in >= 0) ? in : a * (std::exp(in) - 1); - break; - case ActivationLayerInfo::ActivationFunction::SQRT: - tmp = std::sqrt(in); - break; - case ActivationLayerInfo::ActivationFunction::SQUARE: - tmp = in * in; - break; - case ActivationLayerInfo::ActivationFunction::TANH: - tmp = a * std::tanh(b * in); - break; - case ActivationLayerInfo::ActivationFunction::IDENTITY: - tmp = in; - break; - case ActivationLayerInfo::ActivationFunction::HARD_SWISH: - tmp = in * ((std::min(std::max((in + 3), 0.0f), 6.0f)) * 0.166666667f); - break; - default: - ARM_COMPUTE_ERROR("Unsupported activation function"); - } - *(output_ptr + x) = tmp; - } - }, - input, output); -} -} // namespace cpu -} // namespace arm_compute - -#endif /* defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS) */ diff --git a/src/core/cpu/kernels/activation/neon/fp32.cpp b/src/core/cpu/kernels/activation/neon/fp32.cpp deleted file mode 100644 index 54301d45ad..0000000000 --- a/src/core/cpu/kernels/activation/neon/fp32.cpp +++ /dev/null @@ -1,212 +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 "src/core/NEON/NEMath.h" -#include "src/core/NEON/wrapper/wrapper.h" - -#include <arm_neon.h> -#include <cmath> -#include <cstddef> - -namespace arm_compute -{ -namespace cpu -{ -namespace -{ -#ifndef __aarch64__ -inline float32x4_t mask_float_vector(const float32x4_t &in, const uint32x4_t &mask) -{ - auto int_in = vreinterpretq_u32_f32(in); - return vreinterpretq_f32_u32(wrapper::vand(int_in, mask)); -} -#endif /* __aarch64__ */ -} // namespace - -void fp32_neon_activation(const ITensor *src, ITensor *dst, const ActivationLayerInfo &act_info, const Window &window) -{ - /** SIMD vector tag type. */ - using ExactTagType = typename arm_compute::wrapper::traits::neon_bitvector_tag_t<float, wrapper::traits::BitWidth::W128>; - - constexpr int window_step_x = 4; - 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); - - // In case of non-aarch64, a small delta value is added to the input - // to prevent NAN values caused by zeros in inputs to SQRT. - // In case of aarh64, we call vsqrt directly, so we don't use delta. -#ifndef __aarch64__ - const auto delta = wrapper::vdup_n(static_cast<float>(1e-24), ExactTagType {}); -#endif /* __aarch64__ */ - const auto const_1 = wrapper::vdup_n(static_cast<float>(1.f), ExactTagType {}); - const auto const_0 = wrapper::vdup_n(static_cast<float>(0.f), ExactTagType{}); - const auto const_6 = wrapper::vdup_n(static_cast<float>(6.f), ExactTagType{}); - const auto const_3 = wrapper::vdup_n(static_cast<float>(3.f), ExactTagType{}); - const auto const_inv_6 = wrapper::vdup_n(static_cast<float>(0.166666667f), ExactTagType{}); - - constexpr float soft_relu_thresh = 12.f; - const auto vsoft_relu_thresh = wrapper::vdup_n(static_cast<float>(soft_relu_thresh), ExactTagType{}); - - const auto va = wrapper::vdup_n(static_cast<float>(act_info.a()), ExactTagType{}); - const auto vb = wrapper::vdup_n(static_cast<float>(act_info.b()), ExactTagType{}); - const auto a = static_cast<float>(act_info.a()); - const auto b = static_cast<float>(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()); - - wrapper::traits::neon_bitvector_t<float, wrapper::traits::BitWidth::W128> 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); - switch(act) - { - case ActivationLayerInfo::ActivationFunction::ABS: - tmp = wrapper::vabs(vin); - break; - case ActivationLayerInfo::ActivationFunction::LINEAR: - tmp = wrapper::vmla(vb, va, vin); - break; - case ActivationLayerInfo::ActivationFunction::LOGISTIC: - tmp = wrapper::vinv(wrapper::vadd(const_1, wrapper::vexpq(wrapper::vneg(vin)))); - break; - case ActivationLayerInfo::ActivationFunction::RELU: - tmp = wrapper::vmax(const_0, vin); - break; - case ActivationLayerInfo::ActivationFunction::BOUNDED_RELU: - tmp = wrapper::vmin(va, wrapper::vmax(const_0, vin)); - break; - case ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU: - tmp = wrapper::vmin(va, wrapper::vmax(vb, vin)); - break; - case ActivationLayerInfo::ActivationFunction::LEAKY_RELU: - tmp = wrapper::vbsl(wrapper::vcgt(vin, const_0), vin, wrapper::vmul(va, vin)); - break; - case ActivationLayerInfo::ActivationFunction::SOFT_RELU: - tmp = wrapper::vbsl(wrapper::vcgt(vin, vsoft_relu_thresh), vin, wrapper::vlog(wrapper::vadd(const_1, wrapper::vexpq(vin)))); - break; - case ActivationLayerInfo::ActivationFunction::ELU: - tmp = wrapper::vbsl(wrapper::vcge(vin, const_0), vin, wrapper::vmul(va, wrapper::vsub(wrapper::vexpq(vin), const_1))); - break; - case ActivationLayerInfo::ActivationFunction::SQRT: -#ifdef __aarch64__ - tmp = wrapper::vsqrt(vin); -#else /* __aarch64__ */ - { - const auto bitmask = wrapper::vceq(vin, wrapper::vdup_n(0.f, ExactTagType{})); - tmp = wrapper::vinv(wrapper::vinvsqrt(wrapper::vadd(vin, mask_float_vector(delta, bitmask)))); - tmp = mask_float_vector(tmp, wrapper::vnot(bitmask)); - } -#endif /* __aarch64__ */ - break; - case ActivationLayerInfo::ActivationFunction::SQUARE: - tmp = wrapper::vmul(vin, vin); - break; - case ActivationLayerInfo::ActivationFunction::TANH: - tmp = wrapper::vmul(va, wrapper::vtanh(wrapper::vmul(vb, vin))); - break; - case ActivationLayerInfo::ActivationFunction::IDENTITY: - tmp = vin; - break; - case ActivationLayerInfo::ActivationFunction::HARD_SWISH: - tmp = wrapper::vmul(vin, wrapper::vmul(const_inv_6, wrapper::vmin(const_6, wrapper::vmax(const_0, wrapper::vadd(vin, const_3))))); - break; - default: - ARM_COMPUTE_ERROR("Unsupported activation function"); - } - wrapper::vstore(output_ptr + x, tmp); - } - - // Compute left-over elements - for(; x < window_end_x; ++x) - { - const float in = *(reinterpret_cast<const float *>(input_ptr + x)); - float tmp; - switch(act) - { - case ActivationLayerInfo::ActivationFunction::ABS: - tmp = std::abs(in); - break; - case ActivationLayerInfo::ActivationFunction::LINEAR: - tmp = a * in + b; - break; - case ActivationLayerInfo::ActivationFunction::LOGISTIC: - tmp = static_cast<float>(1) / (static_cast<float>(1) + std::exp(-in)); - break; - case ActivationLayerInfo::ActivationFunction::RELU: - tmp = std::max<float>(static_cast<float>(0), in); - break; - case ActivationLayerInfo::ActivationFunction::BOUNDED_RELU: - tmp = std::min<float>(a, std::max(static_cast<float>(0), in)); - break; - case ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU: - tmp = std::min<float>(a, std::max<float>(b, in)); - break; - case ActivationLayerInfo::ActivationFunction::LEAKY_RELU: - tmp = (in > 0) ? in : a * in; - break; - case ActivationLayerInfo::ActivationFunction::SOFT_RELU: - tmp = (in > soft_relu_thresh) ? in : std::log(static_cast<float>(1) + std::exp(in)); - break; - case ActivationLayerInfo::ActivationFunction::ELU: - tmp = (in >= 0) ? in : a * (std::exp(in) - 1); - break; - case ActivationLayerInfo::ActivationFunction::SQRT: - tmp = std::sqrt(in); - break; - case ActivationLayerInfo::ActivationFunction::SQUARE: - tmp = in * in; - break; - case ActivationLayerInfo::ActivationFunction::TANH: - tmp = a * std::tanh(b * in); - break; - case ActivationLayerInfo::ActivationFunction::IDENTITY: - tmp = in; - break; - case ActivationLayerInfo::ActivationFunction::HARD_SWISH: - tmp = in * ((std::min(std::max((in + 3), 0.0f), 6.0f)) * 0.166666667f); - break; - default: - ARM_COMPUTE_ERROR("Unsupported activation function"); - } - *(output_ptr + x) = tmp; - } - }, - input, output); -} -} // namespace cpu -} // namespace arm_compute diff --git a/src/core/cpu/kernels/activation/neon/qasymm8.cpp b/src/core/cpu/kernels/activation/neon/qasymm8.cpp deleted file mode 100644 index a1217435b6..0000000000 --- a/src/core/cpu/kernels/activation/neon/qasymm8.cpp +++ /dev/null @@ -1,262 +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/Window.h" -#include "src/core/NEON/NEAsymm.h" -#include "src/core/NEON/NEMath.h" -#include "src/core/NEON/wrapper/wrapper.h" - -#include <arm_neon.h> -#include <cmath> -#include <cstddef> - -namespace arm_compute -{ -namespace cpu -{ -void qasymm8_neon_activation(const ITensor *src, ITensor *dst, const ActivationLayerInfo &act_info, const Window &window) -{ - constexpr int window_step_x = 16; - 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 qasymm8x16_t va = vdupq_n_u8(quantize_qasymm8(act_info.a(), qi_in)); - const qasymm8x16_t vb = vdupq_n_u8(quantize_qasymm8(act_info.b(), qi_in)); - const qasymm8_t a = quantize_qasymm8(act_info.a(), qi_in); - const qasymm8_t b = quantize_qasymm8(act_info.b(), qi_in); - const qasymm8_t const_0 = quantize_qasymm8(0.f, qi_in); - const qasymm8x16_t vconst_0 = vdupq_n_u8(const_0); - const auto vconst_1 = vdupq_n_f32(1.f); -#ifndef __aarch64__ - const auto vconst_0_f32 = vdupq_n_f32(0); -#endif // __aarch64__ - 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(); - const auto const_6_f32 = vdupq_n_f32(6.f); - const auto const_0_f32 = vdupq_n_f32(0.f); - const auto const_3_f32 = vdupq_n_f32(3.f); - const auto const_inv_6_f32 = vdupq_n_f32(0.166666667f); - - // Initialise scale/offset for re-quantization - float s = qi_in.scale / qi_out.scale; - float o = -qi_in.offset * s + qi_out.offset; - float32x4_t vs = vdupq_n_f32(s); - float32x4_t vo = vdupq_n_f32(o); - - execute_window_loop(win_collapsed, [&](const Coordinates &) - { - const auto input_ptr = reinterpret_cast<const qasymm8_t *>(input.ptr()); - const auto output_ptr = reinterpret_cast<qasymm8_t *>(output.ptr()); - - wrapper::traits::neon_bitvector_t<qasymm8_t, wrapper::traits::BitWidth::W128> 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::RELU) - { - // Perform activation - tmp = vmaxq_u8(vconst_0, vin); - // Re-quantize to new output space - tmp = vmlaq_qasymm8(tmp, vs, vo); - } - else if(act == ActivationLayerInfo::ActivationFunction::BOUNDED_RELU) - { - // Perform activation - tmp = vminq_u8(va, vmaxq_u8(vconst_0, vin)); - // Re-quantize to new output space - tmp = vmlaq_qasymm8(tmp, vs, vo); - } - else if(act == ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU) - { - // Perform activation - tmp = vminq_u8(va, vmaxq_u8(vb, vin)); - // Re-quantize to new output space - tmp = vmlaq_qasymm8(tmp, vs, vo); - } - else if(act == ActivationLayerInfo::ActivationFunction::LOGISTIC) - { - // De-quantize - const auto vin_deq = vdequantize(vin, qi_in); - // Perform activation - const float32x4x4_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])))), - wrapper::vdiv(vconst_1, wrapper::vadd(vconst_1, wrapper::vexpq(wrapper::vneg(vin_deq.val[2])))), - wrapper::vdiv(vconst_1, wrapper::vadd(vconst_1, wrapper::vexpq(wrapper::vneg(vin_deq.val[3])))), - } - }; - // Re-quantize to new output space - tmp = vquantize(tmp_dep, qi_out); - } - else if(act == ActivationLayerInfo::ActivationFunction::TANH) - { - // De-quantize - const auto vin_deq = vdequantize(vin, qi_in); - // Perform activation - const float32x4x4_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))), - wrapper::vmul(va_f32, wrapper::vtanh(wrapper::vmul(vin_deq.val[2], vb_f32))), - wrapper::vmul(va_f32, wrapper::vtanh(wrapper::vmul(vin_deq.val[3], vb_f32))), - } - }; - // Re-quantize to new output space - tmp = vquantize(tmp_dep, qi_out); - } - else if(act == ActivationLayerInfo::ActivationFunction::HARD_SWISH) - { - // De-quantize - const auto vin_deq = vdequantize(vin, qi_in); - // Perform activation - const float32x4x4_t tmp_dep = - { - { - wrapper::vmul(vin_deq.val[0], wrapper::vmul(const_inv_6_f32, wrapper::vmin(const_6_f32, wrapper::vmax(const_0_f32, wrapper::vadd(vin_deq.val[0], const_3_f32))))), - wrapper::vmul(vin_deq.val[1], wrapper::vmul(const_inv_6_f32, wrapper::vmin(const_6_f32, wrapper::vmax(const_0_f32, wrapper::vadd(vin_deq.val[1], const_3_f32))))), - wrapper::vmul(vin_deq.val[2], wrapper::vmul(const_inv_6_f32, wrapper::vmin(const_6_f32, wrapper::vmax(const_0_f32, wrapper::vadd(vin_deq.val[2], const_3_f32))))), - wrapper::vmul(vin_deq.val[3], wrapper::vmul(const_inv_6_f32, wrapper::vmin(const_6_f32, wrapper::vmax(const_0_f32, wrapper::vadd(vin_deq.val[3], const_3_f32))))), - } - }; - // Re-quantize to new output space - tmp = vquantize(tmp_dep, qi_out); - } - else if(act == ActivationLayerInfo::ActivationFunction::LEAKY_RELU) - { - const auto vin_deq = vdequantize(vin, qi_in); - -#ifdef __aarch64__ - const uint32x4x4_t pos_mask = - { - { - wrapper::vcgtz(vin_deq.val[0]), - wrapper::vcgtz(vin_deq.val[1]), - wrapper::vcgtz(vin_deq.val[2]), - wrapper::vcgtz(vin_deq.val[3]), - } - }; -#else // __aarch64__ - const uint32x4x4_t pos_mask = - { - { - wrapper::vcgt(vin_deq.val[0], vconst_0_f32), - wrapper::vcgt(vin_deq.val[1], vconst_0_f32), - wrapper::vcgt(vin_deq.val[2], vconst_0_f32), - wrapper::vcgt(vin_deq.val[3], vconst_0_f32), - } - }; -#endif // __aarch64__ - - const float32x4x4_t tmp_dep = - { - { - wrapper::vbsl(pos_mask.val[0], vin_deq.val[0], wrapper::vmul(va_f32, vin_deq.val[0])), - wrapper::vbsl(pos_mask.val[1], vin_deq.val[1], wrapper::vmul(va_f32, vin_deq.val[1])), - wrapper::vbsl(pos_mask.val[2], vin_deq.val[2], wrapper::vmul(va_f32, vin_deq.val[2])), - wrapper::vbsl(pos_mask.val[3], vin_deq.val[3], wrapper::vmul(va_f32, vin_deq.val[3])), - } - }; - - tmp = vquantize(tmp_dep, qi_out); - } - else - { - ARM_COMPUTE_ERROR("Unsupported activation function"); - } - wrapper::vstore(output_ptr + x, tmp); - } - - // Compute left-over elements - for(; x < window_end_x; ++x) - { - qasymm8_t in = *(reinterpret_cast<const qasymm8_t *>(input_ptr + x)); - qasymm8_t tmp = 0; - if(act == ActivationLayerInfo::ActivationFunction::RELU) - { - tmp = std::max(const_0, in); - tmp = utility::clamp<int32_t, qasymm8_t>(tmp * s + o); - } - else if(act == ActivationLayerInfo::ActivationFunction::BOUNDED_RELU) - { - tmp = std::min(a, std::max(const_0, in)); - tmp = utility::clamp<int32_t, qasymm8_t>(tmp * s + o); - } - else if(act == ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU) - { - tmp = std::min(a, std::max(b, in)); - tmp = utility::clamp<int32_t, qasymm8_t>(tmp * s + o); - } - else if(act == ActivationLayerInfo::ActivationFunction::LOGISTIC) - { - float tmp_f = dequantize_qasymm8(in, qi_in); - tmp_f = 1.f / (1.f + std::exp(-tmp_f)); - tmp = quantize_qasymm8(tmp_f, qi_out); - } - else if(act == ActivationLayerInfo::ActivationFunction::TANH) - { - float tmp_f = dequantize_qasymm8(in, qi_in); - tmp_f = a_f32 * std::tanh(b_f32 * tmp_f); - tmp = quantize_qasymm8(tmp_f, qi_out); - } - else if(act == ActivationLayerInfo::ActivationFunction::HARD_SWISH) - { - float tmp_f = dequantize_qasymm8(in, qi_in); - tmp_f = tmp_f * ((std::min(std::max((tmp_f + 3), 0.0f), 6.0f)) * 0.166666667f); - tmp = quantize_qasymm8(tmp_f, qi_out); - } - else if(act == ActivationLayerInfo::ActivationFunction::LEAKY_RELU) - { - float tmp_f = dequantize_qasymm8(in, qi_in); - tmp_f = tmp_f > 0 ? tmp_f : tmp_f * a_f32; - tmp = quantize_qasymm8(tmp_f, qi_out); - } - else - { - ARM_COMPUTE_ERROR("Unsupported activation function"); - } - *(output_ptr + x) = tmp; - } - }, - input, output); -} -} // namespace cpu -} // namespace arm_compute diff --git a/src/core/cpu/kernels/activation/neon/qasymm8_signed.cpp b/src/core/cpu/kernels/activation/neon/qasymm8_signed.cpp deleted file mode 100644 index 8b40bf8e72..0000000000 --- a/src/core/cpu/kernels/activation/neon/qasymm8_signed.cpp +++ /dev/null @@ -1,261 +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/Window.h" -#include "src/core/NEON/NEAsymm.h" -#include "src/core/NEON/NEMath.h" -#include "src/core/NEON/wrapper/wrapper.h" - -#include <arm_neon.h> -#include <cmath> -#include <cstddef> - -namespace arm_compute -{ -namespace cpu -{ -void qasymm8_signed_neon_activation(const ITensor *src, ITensor *dst, const ActivationLayerInfo &act_info, const Window &window) -{ - constexpr int window_step_x = 16; - 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 qasymm8x16_signed_t va = vdupq_n_s8(quantize_qasymm8_signed(act_info.a(), qi_in)); - const qasymm8x16_signed_t vb = vdupq_n_s8(quantize_qasymm8_signed(act_info.b(), qi_in)); - const qasymm8_signed_t a = quantize_qasymm8_signed(act_info.a(), qi_in); - const qasymm8_signed_t b = quantize_qasymm8_signed(act_info.b(), qi_in); - const qasymm8_signed_t const_0 = quantize_qasymm8_signed(0.f, qi_in); - const qasymm8x16_signed_t vconst_0 = vdupq_n_s8(const_0); - const auto vconst_1 = vdupq_n_f32(1.f); -#ifndef __aarch64__ - const auto vconst_0_f32 = vdupq_n_f32(1.f); -#endif // __aarch64__ - 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(); - const auto const_6_f32 = vdupq_n_f32(6.f); - const auto const_0_f32 = vdupq_n_f32(0.f); - const auto const_3_f32 = vdupq_n_f32(3.f); - const auto const_inv_6_f32 = vdupq_n_f32(0.166666667f); - - // Initialise scale/offset for re-quantization - float s = qi_in.scale / qi_out.scale; - float o = -qi_in.offset * s + qi_out.offset; - float32x4_t vs = vdupq_n_f32(s); - float32x4_t vo = vdupq_n_f32(o); - - execute_window_loop(win_collapsed, [&](const Coordinates &) - { - const auto input_ptr = reinterpret_cast<const qasymm8_signed_t *>(input.ptr()); - const auto output_ptr = reinterpret_cast<qasymm8_signed_t *>(output.ptr()); - - wrapper::traits::neon_bitvector_t<qasymm8_signed_t, wrapper::traits::BitWidth::W128> 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::RELU) - { - // Perform activation - tmp = vmaxq_s8(vconst_0, vin); - // Re-quantize to new output space - tmp = vmlaq_qasymm8_signed(tmp, vs, vo); - } - else if(act == ActivationLayerInfo::ActivationFunction::BOUNDED_RELU) - { - // Perform activation - tmp = vminq_s8(va, vmaxq_s8(vconst_0, vin)); - // Re-quantize to new output space - tmp = vmlaq_qasymm8_signed(tmp, vs, vo); - } - else if(act == ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU) - { - // Perform activation - tmp = vminq_s8(va, vmaxq_s8(vb, vin)); - // Re-quantize to new output space - tmp = vmlaq_qasymm8_signed(tmp, vs, vo); - } - else if(act == ActivationLayerInfo::ActivationFunction::LOGISTIC) - { - // De-quantize - const auto vin_deq = vdequantize(vin, qi_in); - // Perform activation - const float32x4x4_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])))), - wrapper::vdiv(vconst_1, wrapper::vadd(vconst_1, wrapper::vexpq(wrapper::vneg(vin_deq.val[2])))), - wrapper::vdiv(vconst_1, wrapper::vadd(vconst_1, wrapper::vexpq(wrapper::vneg(vin_deq.val[3])))), - } - }; - // Re-quantize to new output space - tmp = vquantize_signed(tmp_dep, qi_out); - } - else if(act == ActivationLayerInfo::ActivationFunction::TANH) - { - // De-quantize - const auto vin_deq = vdequantize(vin, qi_in); - // Perform activation - const float32x4x4_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))), - wrapper::vmul(va_f32, wrapper::vtanh(wrapper::vmul(vin_deq.val[2], vb_f32))), - wrapper::vmul(va_f32, wrapper::vtanh(wrapper::vmul(vin_deq.val[3], vb_f32))), - } - }; - // Re-quantize to new output space - tmp = vquantize_signed(tmp_dep, qi_out); - } - else if(act == ActivationLayerInfo::ActivationFunction::HARD_SWISH) - { - // De-quantize - const auto vin_deq = vdequantize(vin, qi_in); - // Perform activation - const float32x4x4_t tmp_dep = - { - { - wrapper::vmul(vin_deq.val[0], wrapper::vmul(const_inv_6_f32, wrapper::vmin(const_6_f32, wrapper::vmax(const_0_f32, wrapper::vadd(vin_deq.val[0], const_3_f32))))), - wrapper::vmul(vin_deq.val[1], wrapper::vmul(const_inv_6_f32, wrapper::vmin(const_6_f32, wrapper::vmax(const_0_f32, wrapper::vadd(vin_deq.val[1], const_3_f32))))), - wrapper::vmul(vin_deq.val[2], wrapper::vmul(const_inv_6_f32, wrapper::vmin(const_6_f32, wrapper::vmax(const_0_f32, wrapper::vadd(vin_deq.val[2], const_3_f32))))), - wrapper::vmul(vin_deq.val[3], wrapper::vmul(const_inv_6_f32, wrapper::vmin(const_6_f32, wrapper::vmax(const_0_f32, wrapper::vadd(vin_deq.val[3], const_3_f32))))), - } - }; - // Re-quantize to new output space - tmp = vquantize_signed(tmp_dep, qi_out); - } - else if(act == ActivationLayerInfo::ActivationFunction::LEAKY_RELU) - { - const auto vin_deq = vdequantize(vin, qi_in); - -#ifdef __aarch64__ - const uint32x4x4_t pos_mask = - { - { - wrapper::vcgtz(vin_deq.val[0]), - wrapper::vcgtz(vin_deq.val[1]), - wrapper::vcgtz(vin_deq.val[2]), - wrapper::vcgtz(vin_deq.val[3]), - } - }; -#else // __aarch64__ - const uint32x4x4_t pos_mask = - { - { - wrapper::vcgt(vin_deq.val[0], vconst_0_f32), - wrapper::vcgt(vin_deq.val[1], vconst_0_f32), - wrapper::vcgt(vin_deq.val[2], vconst_0_f32), - wrapper::vcgt(vin_deq.val[3], vconst_0_f32), - } - }; -#endif // __aarch64__ - - const float32x4x4_t tmp_dep = - { - { - wrapper::vbsl(pos_mask.val[0], vin_deq.val[0], wrapper::vmul(va_f32, vin_deq.val[0])), - wrapper::vbsl(pos_mask.val[1], vin_deq.val[1], wrapper::vmul(va_f32, vin_deq.val[1])), - wrapper::vbsl(pos_mask.val[2], vin_deq.val[2], wrapper::vmul(va_f32, vin_deq.val[2])), - wrapper::vbsl(pos_mask.val[3], vin_deq.val[3], wrapper::vmul(va_f32, vin_deq.val[3])), - } - }; - - tmp = vquantize_signed(tmp_dep, qi_out); - } - else - { - ARM_COMPUTE_ERROR("Unsupported activation function"); - } - wrapper::vstore(output_ptr + x, tmp); - } - - // Compute left-over elements - for(; x < window_end_x; ++x) - { - qasymm8_signed_t in = *(reinterpret_cast<const qasymm8_signed_t *>(input_ptr + x)); - qasymm8_signed_t tmp = 0; - if(act == ActivationLayerInfo::ActivationFunction::RELU) - { - tmp = std::max(const_0, in); - tmp = utility::clamp<int32_t, qasymm8_signed_t>(tmp * s + o); - } - else if(act == ActivationLayerInfo::ActivationFunction::BOUNDED_RELU) - { - tmp = std::min(a, std::max(const_0, in)); - tmp = utility::clamp<int32_t, qasymm8_signed_t>(tmp * s + o); - } - else if(act == ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU) - { - tmp = std::min(a, std::max(b, in)); - tmp = utility::clamp<int32_t, qasymm8_signed_t>(tmp * s + o); - } - else if(act == ActivationLayerInfo::ActivationFunction::LOGISTIC) - { - float tmp_f = dequantize_qasymm8_signed(in, qi_in); - tmp_f = 1.f / (1.f + std::exp(-tmp_f)); - tmp = quantize_qasymm8_signed(tmp_f, qi_out); - } - else if(act == ActivationLayerInfo::ActivationFunction::TANH) - { - float tmp_f = dequantize_qasymm8_signed(in, qi_in); - tmp_f = a_f32 * std::tanh(b_f32 * tmp_f); - tmp = quantize_qasymm8_signed(tmp_f, qi_out); - } - else if(act == ActivationLayerInfo::ActivationFunction::HARD_SWISH) - { - float tmp_f = dequantize_qasymm8_signed(in, qi_in); - tmp_f = tmp_f * ((std::min(std::max((tmp_f + 3), 0.0f), 6.0f)) * 0.166666667f); - tmp = quantize_qasymm8_signed(tmp_f, qi_out); - } - else if(act == ActivationLayerInfo::ActivationFunction::LEAKY_RELU) - { - float tmp_f = dequantize_qasymm8_signed(in, qi_in); - tmp_f = tmp_f > 0 ? tmp_f : tmp_f * a_f32; - tmp = quantize_qasymm8_signed(tmp_f, qi_out); - } - else - { - ARM_COMPUTE_ERROR("Unsupported activation function"); - } - *(output_ptr + x) = tmp; - } - }, - input, output); -} -} // namespace cpu -} // namespace arm_compute 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 |