#include <SplitV.h>

Collaboration diagram for luci_interpreter::kernels::SplitV:

Public Member Functions
	SplitV (const Tensor input, const Tensor size_splits, const Tensor axis, std::vector< Tensor > outputs)

const Tensor *	input () const

const Tensor *	size_splits () const

const Tensor *	axis () const

Tensor *	output (int index) const

void	configure () override

void	execute () const override

Public Member Functions inherited from luci_interpreter::Kernel
virtual	~Kernel ()=default

const std::vector< const Tensor * > &	getInputTensors () const

const std::vector< Tensor * > &	getOutputTensors () const

Additional Inherited Members
Protected Member Functions inherited from luci_interpreter::Kernel
	Kernel (std::vector< const Tensor * > inputs, std::vector< Tensor * > outputs)

Protected Attributes inherited from luci_interpreter::Kernel
const std::vector< const Tensor * >	_inputs

const std::vector< Tensor * >	_outputs

Detailed Description

Definition at line 28 of file SplitV.h.

Constructor & Destructor Documentation

◆ SplitV()

luci_interpreter::kernels::SplitV::SplitV	(	const Tensor *	input,
		const Tensor *	size_splits,
		const Tensor *	axis,
		std::vector< Tensor * >	outputs
	)

Definition at line 28 of file SplitV.cpp.

  : Kernel({input, size_splits, axis}, std::move(outputs))
{
}

References axis(), input(), and size_splits().

Member Function Documentation

◆ axis()

const Tensor * luci_interpreter::kernels::SplitV::axis ( ) const

inline

Definition at line 36 of file SplitV.h.

36{ return _inputs[2]; }

luci_interpreter::Kernel::_inputs

const std::vector< const Tensor * > _inputs

Definition Kernel.h:52

References luci_interpreter::Kernel::_inputs.

Referenced by configure(), and SplitV().

◆ configure()

void luci_interpreter::kernels::SplitV::configure ( )

overridevirtual

Implements luci_interpreter::Kernel.

Definition at line 34 of file SplitV.cpp.

{
  assert(axis()->shape().num_elements() == 1);
  _axis_value = getTensorData<int32_t>(axis())[0];
  if (_axis_value < 0)
    _axis_value += input()->shape().num_dims();
  assert(_axis_value >= 0 && _axis_value < input()->shape().num_dims());
 
  auto num_split = static_cast<int32_t>(_outputs.size());
  auto sizes_data = getTensorData<int32_t>(size_splits());
 
  assert(size_splits()->shape().num_dims() == 1);
 
  int32_t sum = 0;
  const auto num_dims_size_spits = size_splits()->shape().dim(0);
  int32_t count_neg_dim = 0;
 
  for (int32_t i = 0; i < num_dims_size_spits - 1; ++i)
  {
    if (sizes_data[i] != -1)
    {
      sum += sizes_data[i];
    }
    else
    {
      count_neg_dim++;
    }
  }
  assert(count_neg_dim < 2);
  assert(size_splits()->shape().num_elements() == num_split);
 
  auto output_shape = input()->shape();
  for (int32_t i = 0; i < num_split; ++i)
  {
    if (sizes_data[i] == -1)
    {
      output_shape.dim(_axis_value) = input()->shape().dim(_axis_value) - sum;
    }
    else
    {
      output_shape.dim(_axis_value) = sizes_data[i];
    }
    _outputs[i]->resize(output_shape);
  }
}

References luci_interpreter::Kernel::_outputs, axis(), luci_interpreter::Shape::dim(), input(), luci_interpreter::Shape::num_dims(), output_shape, luci_interpreter::RuntimeShape::resize(), luci_interpreter::Tensor::shape(), and size_splits().

◆ execute()

void luci_interpreter::kernels::SplitV::execute ( ) const

overridevirtual

Implements luci_interpreter::Kernel.

Definition at line 80 of file SplitV.cpp.

{
  tflite::SplitParams params{};
  params.num_split = _outputs.size();
  params.axis = _axis_value;
 
#define TF_LITE_SPLIT(scalar)                                                                     \
  {                                                                                               \
    VectorOfTensors<scalar, false> all_outputs(_outputs);                                         \
    tflite::optimized_ops::Split(params, getTensorShape(input()), getTensorData<scalar>(input()), \
                                 all_outputs.shapes(), all_outputs.data());                       \
  }
 
  switch (input()->element_type())
  {
    case DataType::FLOAT32:
      TF_LITE_SPLIT(float);
      break;
    case DataType::U8:
      TF_LITE_SPLIT(uint8_t);
      break;
    case DataType::S16:
      TF_LITE_SPLIT(int16_t);
      break;
    default:
      throw std::runtime_error("luci-intp SplitV Unsupported type.");
  }
#undef TF_LITE_SPLIT
}