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//
// Copyright © 2017 Arm Ltd and Contributors. All rights reserved.
// SPDX-License-Identifier: MIT
//
#include <armnn/Deprecated.hpp>
#include <armnn/Exceptions.hpp>
#include <armnn/Types.hpp>
#include <backendsCommon/LayerSupportBase.hpp>
#include <armnn/utility/IgnoreUnused.hpp>
#include <armnn/utility/PolymorphicDowncast.hpp>
namespace
{
bool DefaultLayerSupport(const char* func,
const char* file,
unsigned int line,
armnn::Optional<std::string&> reasonIfUnsupported)
{
// NOTE: We only need to return the reason if the optional parameter is not empty
if (reasonIfUnsupported)
{
std::stringstream message;
message << func << " is not implemented [" << file << ":" << line << "]";
reasonIfUnsupported.value() = message.str();
}
return false;
}
} // anonymous namespace
namespace armnn
{
bool LayerSupportBase::IsLayerSupported(const LayerType& type,
const std::vector<TensorInfo>& infos,
const BaseDescriptor& descriptor,
const Optional<LstmInputParamsInfo>&,
const Optional<QuantizedLstmInputParamsInfo>&,
Optional<std::string&> reasonIfUnsupported) const
{
switch(type)
{
case LayerType::MemCopy:
return IsMemCopySupported(infos[0], infos[1], reasonIfUnsupported);
case LayerType::MemImport:
return IsMemImportSupported(infos[0], infos[1], reasonIfUnsupported);
case LayerType::StandIn:
{
auto desc = *(PolymorphicDowncast<const StandInDescriptor*>(&descriptor));
if (infos.size() != (desc.m_NumInputs + desc.m_NumOutputs))
{
throw InvalidArgumentException("Number of StandIn layer TensorInfos does not equal "
"the combined number of input and output slots assigned "
"to the StandIn descriptor");
}
std::vector<const TensorInfo*> inputInfos;
for (uint32_t i = 0; i < desc.m_NumInputs; i++)
{
inputInfos.push_back(&infos[i]);
}
std::vector<const TensorInfo*> outputInfos;
for (uint32_t i = desc.m_NumInputs; i < infos.size(); i++)
{
outputInfos.push_back(&infos[i]);
}
return IsStandInSupported(inputInfos,
outputInfos,
desc,
reasonIfUnsupported);
}
default:
return DefaultLayerSupport(__func__, __FILE__, __LINE__, reasonIfUnsupported);
}
}
bool LayerSupportBase::IsDetectionPostProcessSupported(const TensorInfo&, // boxEncodings
const TensorInfo&, // scores
const TensorInfo&, // anchors
const TensorInfo&, // detectionBoxes
const TensorInfo&, // detectionClasses
const TensorInfo&, // detectionScores
const TensorInfo&, // numDetections
const DetectionPostProcessDescriptor&, //descriptor
Optional<std::string&> reasonIfUnsupported) const
{
return DefaultLayerSupport(__func__, __FILE__, __LINE__, reasonIfUnsupported);
}
bool LayerSupportBase::IsMemCopySupported(const armnn::TensorInfo&, // input
const armnn::TensorInfo&, // output
armnn::Optional<std::string &> ) const // reasonIfUnsupported
{
return true;
}
bool LayerSupportBase::IsMemImportSupported(const armnn::TensorInfo&, // input
const armnn::TensorInfo&, // output
armnn::Optional<std::string &> ) const // reasonIfUnsupported
{
return true;
}
bool LayerSupportBase::IsMergeSupported(const TensorInfo&, // input0
const TensorInfo&, // input1
const TensorInfo&, // output
Optional<std::string&> reasonIfUnsupported) const
{
return DefaultLayerSupport(__func__, __FILE__, __LINE__, reasonIfUnsupported);
}
bool LayerSupportBase::IsQuantizedLstmSupported(const TensorInfo&, // input
const TensorInfo&, // previousCellStateIn
const TensorInfo&, // previousOutputIn
const TensorInfo&, // cellStateOut
const TensorInfo&, // output
const QuantizedLstmInputParamsInfo&, // paramsInfo
Optional<std::string&> reasonIfUnsupported) const
{
return DefaultLayerSupport(__func__, __FILE__, __LINE__, reasonIfUnsupported);
}
bool LayerSupportBase::IsShapeSupported(const TensorInfo&, // input
const TensorInfo&, // output
Optional<std::string&> reasonIfUnsupported) const
{
return DefaultLayerSupport(__func__, __FILE__, __LINE__, reasonIfUnsupported);
}
bool LayerSupportBase::IsStandInSupported(const std::vector<const TensorInfo*>&, // inputs
const std::vector<const TensorInfo*>&, // outputs
const StandInDescriptor&, // descriptor
Optional<std::string&> reasonIfUnsupported) const
{
if (reasonIfUnsupported)
{
std::stringstream message;
message << "StandIn layer is not executable via backends";
reasonIfUnsupported.value() = message.str();
}
return false;
}
} // namespace armnn
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