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| author | Michele Di Giorgio <michele.digiorgio@arm.com> | 2018-01-23 16:55:24 +0000 |
|---|---|---|
| committer | Anthony Barbier <anthony.barbier@arm.com> | 2018-11-02 16:43:42 +0000 |
| commit | dde3ad94dc11fae29dba862a1ad657f551f36763 (patch) | |
| tree | b9fe87fb339326aaa68fde0a0b90996c4d2e3cc9 /src/core/NEON/kernels/NEActivationLayerKernel.cpp | |
| parent | 967f86dc0931aa1b59f477cb92911f7d06640c27 (diff) | |
| download | ComputeLibrary-dde3ad94dc11fae29dba862a1ad657f551f36763.tar.gz | |
COMPMID-842: Add NEON QASYMM8 RELU Activation
Change-Id: I7197d2ad7ac08112eba1570a257ad011b1ce0b75
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/117404
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Jenkins <bsgcomp@arm.com>
Diffstat (limited to 'src/core/NEON/kernels/NEActivationLayerKernel.cpp')
| -rw-r--r-- | src/core/NEON/kernels/NEActivationLayerKernel.cpp | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/src/core/NEON/kernels/NEActivationLayerKernel.cpp b/src/core/NEON/kernels/NEActivationLayerKernel.cpp index 9670b7798c..37d694d1b4 100644 --- a/src/core/NEON/kernels/NEActivationLayerKernel.cpp +++ b/src/core/NEON/kernels/NEActivationLayerKernel.cpp @@ -1,5 +1,5 @@ /* - * Copyright (c) 2017 ARM Limited. + * Copyright (c) 2017-2018 ARM Limited. * * SPDX-License-Identifier: MIT * @@ -109,8 +109,9 @@ void NEActivationLayerKernel::configure(ITensor *input, ITensor *output, Activat ARM_COMPUTE_ERROR_THROW_ON(validate_arguments(input->info(), (output != nullptr) ? output->info() : nullptr)); - ARM_COMPUTE_ERROR_ON_MSG((input->info()->data_type() == DataType::QASYMM8) && (activation_info.activation() != ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU), - "For QASYMM8 only lower/upper bounded relu is supported"); + ARM_COMPUTE_ERROR_ON_MSG((input->info()->data_type() == DataType::QASYMM8) && (activation_info.activation() != ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU) + && (activation_info.activation() != ActivationLayerInfo::ActivationFunction::RELU), + "For QASYMM8 only relu and lower/upper bounded relu are supported"); // Activation functions : FP32 static std::map<ActivationFunction, ActivationFunctionExecutorPtr> act_map_f32 = @@ -179,6 +180,7 @@ void NEActivationLayerKernel::configure(ITensor *input, ITensor *output, Activat static std::map<ActivationFunction, ActivationFunctionExecutorPtr> act_map_qasymm8 = { { ActivationFunction::LU_BOUNDED_RELU, &NEActivationLayerKernel::activation<ActivationFunction::LU_BOUNDED_RELU, qasymm8_t> }, + { ActivationFunction::RELU, &NEActivationLayerKernel::activation<ActivationFunction::RELU, qasymm8_t> }, }; switch(input->info()->data_type()) @@ -561,12 +563,14 @@ typename std::enable_if<std::is_same<T, int8_t>::value, void>::type NEActivation template <ActivationLayerInfo::ActivationFunction F, typename T> typename std::enable_if<std::is_same<T, qasymm8_t>::value, void>::type NEActivationLayerKernel::activation(const Window &window) { - Iterator input(_input, window); - Iterator output(_output, window); - const QuantizationInfo qi_in = _input->info()->quantization_info(); - const QuantizationInfo qi_out = _output->info()->quantization_info(); - const qasymm8x16_t a = vdupq_n_u8(sqcvt_qasymm8_f32(_act_info.a(), qi_in.scale, qi_in.offset)); - const qasymm8x16_t b = vdupq_n_u8(sqcvt_qasymm8_f32(_act_info.b(), qi_in.scale, qi_in.offset)); + Iterator input(_input, window); + Iterator output(_output, window); + const QuantizationInfo qi_in = _input->info()->quantization_info(); + const QuantizationInfo qi_out = _output->info()->quantization_info(); + const qasymm8x16_t a = vdupq_n_u8(sqcvt_qasymm8_f32(_act_info.a(), qi_in.scale, qi_in.offset)); + const qasymm8x16_t b = vdupq_n_u8(sqcvt_qasymm8_f32(_act_info.b(), qi_in.scale, qi_in.offset)); + static const qasymm8x16_t CONST_0 = vdupq_n_u8(sqcvt_qasymm8_f32(0.f, qi_in.scale, qi_in.offset)); + // Initialise scale/offset for re-quantization float s = qi_in.scale / qi_out.scale; float o = -qi_in.offset * s + qi_out.offset; @@ -589,6 +593,12 @@ typename std::enable_if<std::is_same<T, qasymm8_t>::value, void>::type NEActivat // Re-quantize to new output space tmp = vmlaq_qasymm8(tmp, vs, vo); break; + case ActivationFunction::RELU: + // Perform activation + tmp = vmaxq_u8(CONST_0, in); + // Re-quantize to new output space + tmp = vmlaq_qasymm8(tmp, vs, vo); + break; default: ARM_COMPUTE_ERROR("Function not implemented"); break; |