#include <ExpandDims.h>

Collaboration diagram for luci_interpreter::kernels::ExpandDims:

Public Member Functions
	ExpandDims (const Tensor input, const Tensor axis, Tensor *output)

const Tensor *	input () const

const Tensor *	axis () const

Tensor *	output () 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 ExpandDims.h.

Constructor & Destructor Documentation

◆ ExpandDims()

luci_interpreter::kernels::ExpandDims::ExpandDims	(	const Tensor *	input,
		const Tensor *	axis,
		Tensor *	output
	)

Definition at line 25 of file ExpandDims.cpp.

  : Kernel({input, axis}, {output})
{
}

References axis(), and input().

Member Function Documentation

◆ axis()

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

inline

Definition at line 34 of file ExpandDims.h.

34{ return _inputs[1]; }

luci_interpreter::Kernel::_inputs

const std::vector< const Tensor * > _inputs

Definition Kernel.h:52

References luci_interpreter::Kernel::_inputs.

Referenced by configure(), and ExpandDims().

◆ configure()

void luci_interpreter::kernels::ExpandDims::configure ( )

overridevirtual

Implements luci_interpreter::Kernel.

Definition at line 30 of file ExpandDims.cpp.

{
  int32_t axis_value;
 
  switch (axis()->element_type())
  {
    case loco::DataType::S32:
      axis_value = *getTensorData<int32_t>(axis());
      break;
    case loco::DataType::S64:
      axis_value = static_cast<int32_t>(*getTensorData<int64_t>(axis()));
      break;
    default:
      throw std::runtime_error("luci-intp ExpandDims Unsupported type.");
  }
 
  const auto input_shape = input()->shape();
 
  if (axis_value < 0)
  {
    axis_value += input_shape.num_dims() + 1;
  }
 
  LUCI_INTERPRETER_CHECK(axis_value <= input_shape.num_dims() and axis_value >= 0);
 
  Shape output_shape(input_shape.num_dims() + 1);
  for (int32_t i = 0; i < output_shape.num_dims(); ++i)
  {
    if (i < axis_value)
    {
      output_shape.dim(i) = input_shape.dim(i);
    }
    else if (i == axis_value)
    {
      output_shape.dim(i) = 1;
    }
    else
    {
      LUCI_INTERPRETER_CHECK(i >= 1);
      output_shape.dim(i) = input_shape.dim(i - 1);
    }
  }
 
  output()->resize(output_shape);
}

References axis(), input(), LUCI_INTERPRETER_CHECK, luci_interpreter::Shape::num_dims(), output(), output_shape, luci_interpreter::Tensor::resize(), and luci_interpreter::Tensor::shape().

◆ execute()

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

overridevirtual

Implements luci_interpreter::Kernel.

Definition at line 76 of file ExpandDims.cpp.

{
  // Just copy input to output
  const auto *input_data = input()->data<void>();
  auto *output_data = output()->data<void>();
 
  const size_t element_size = getDataTypeSize(input()->element_type());
  const int32_t num_elements = input()->shape().num_elements();
  std::memcpy(output_data, input_data, num_elements * element_size);
}