#include <sdfg/data_flow/library_nodes/math/tensor/elementwise_ops/cast_node.h>

Inheritance diagram for sdfg::math::tensor::CastNode:

Public Member Functions
	CastNode (size_t element_id, const DebugInfo &debug_info, const graph::Vertex vertex, data_flow::DataFlowGraph &parent, const std::vector< symbolic::Expression > &shape, types::PrimitiveType target_type, const data_flow::ImplementationType &impl_type=data_flow::ImplementationType_NONE)
ElementOutput	expand_operation_dataflow (builder::StructuredSDFGBuilder &builder, Block &block, std::vector< ElementInput > &needed_inputs, types::PrimitiveType expected_type) override
	Models the pure dataflow of the operation as applied to each element of the output as a function of the inputs.
bool	supports_integer_types () const override
	Check if this operation supports integer types.
types::PrimitiveType	target_type () const
void	validate (const Function &function) const override
	Validates the element.
std::unique_ptr< data_flow::DataFlowNode >	clone (size_t element_id, const graph::Vertex vertex, data_flow::DataFlowGraph &parent) const override
	Clone this node for graph transformations.
Public Member Functions inherited from sdfg::math::tensor::ElementWiseDataflowTensorNode
	ElementWiseDataflowTensorNode (size_t element_id, const DebugInfo &debug_info, const graph::Vertex vertex, data_flow::DataFlowGraph &parent, const data_flow::LibraryNodeCode &code, const std::vector< symbolic::Expression > &shape, const std::string &modified_tensor_conn, const std::vector< std::string > &tensor_inputs, QuantizationType quantization=QUANTIZATION_MATCH_INPUTS, const data_flow::ImplementationType &impl_type=data_flow::ImplementationType_NONE)
virtual int	tensor_input_count () const
	How many inputs, starting with 0 are full tensors?
virtual int	mandatory_input_count () const
	How many inputs, starting with 0 are optional?
QuantizationType	quantization () const
QuantizationType	quantization (const data_flow::DataFlowGraph &dataflow) const
	type of the math calculations.
std::optional< QuantizationType >	uniform_quantization (const data_flow::DataFlowGraph &dataflow) const
	Same result as quantization if it matches all the inputs.
QuantizationType	fixed_quantization () const
	configuration of the type for the math calculations, independent of current input types etc.
void	set_fixed_quantization (const QuantizationType quant)
void	validate_target_tensor (const data_flow::DataFlowGraph &graph) const
void	validate_all_input_tensors (const data_flow::DataFlowGraph &graph) const
virtual void	validate_non_tensor_inputs (const data_flow::DataFlowGraph &graph) const
	by default, everything after the tensors is mandated to be scalar.
void	validate (const Function &function) const override
	Validate the code node's configuration.
const std::vector< symbolic::Expression > &	shape () const
	Get the tensor shape.
symbolic::SymbolSet	symbols () const override
	Get all symbols used in this node.
void	replace (const symbolic::Expression old_expression, const symbolic::Expression new_expression) override
void	replace (const symbolic::ExpressionMapping &replacements) override
passes::LibNodeExpander::ExpandOutcome	expand (passes::LibNodeExpander::ExpandContext &context, structured_control_flow::Block &block) override
	Expand into map with linearized indexing.
data_flow::PointerAccessType	pointer_access_type (int input_idx) const override
	Describes what a pointer is used for.
Public Member Functions inherited from sdfg::math::tensor::TensorNode
	TensorNode (size_t element_id, const DebugInfo &debug_info, const graph::Vertex vertex, data_flow::DataFlowGraph &parent, const data_flow::LibraryNodeCode &code, const std::vector< std::string > &outputs, const std::vector< std::string > &inputs, const data_flow::ImplementationType &impl_type)
	Construct a tensor node.
virtual void	verify_data_types (const data_flow::DataFlowGraph &graph) const
	Called as part of validate.
void	validate (const Function &function) const override
	Validate tensor node constraints.
types::PrimitiveType	primitive_type (const data_flow::DataFlowGraph &graph) const
	Get the primitive type of this tensor operation.
Public Member Functions inherited from sdfg::math::MathNode
	MathNode (size_t element_id, const DebugInfo &debug_info, const graph::Vertex vertex, data_flow::DataFlowGraph &parent, const data_flow::LibraryNodeCode &code, const std::vector< std::string > &outputs, const std::vector< std::string > &inputs, const data_flow::ImplementationType &implementation_type, bool side_effects=false)
	Construct a mathematical library node.
Public Member Functions inherited from sdfg::data_flow::LibraryNode
	LibraryNode (const LibraryNode &data_node)=delete
LibraryNode &	operator= (const LibraryNode &)=delete
virtual	~LibraryNode ()=default
ElementType	type_id () const override
	Returns the type of the element.
const LibraryNodeCode &	code () const
	Get the operation code.
const ImplementationType &	implementation_type () const
	Get the implementation type (const).
ImplementationType &	implementation_type ()
	Get the implementation type (mutable).
void	set_implementation_type (const ImplementationType &impl_type)
bool	side_effect () const override
	Check if this node has side effects.
virtual std::string	toStr () const
	Convert node to string representation.
virtual symbolic::Expression	flop () const
	Calculate floating point operations for this node.
PointerAccessType	pointer_access_type (const Memlet &edge) const
virtual bool	relocalize_operand (int input_idx, const math::tensor::TensorLayout &packed)
	Repoint the operand at `input_idx` to a locally staged buffer.
virtual bool	can_relocalize_operand (int input_idx, const math::tensor::TensorLayout &packed) const
	Side-effect-free predicate mirroring relocalize_operand: whether the operand at `input_idx` can be repointed at the buffer view `packed`.
virtual std::optional< SubgroupAccess >	operand_access (int input_idx, unsigned subgroup_size) const
	The elements one subgroup of `subgroup_size` lanes reads from the operand at `input_idx`, if the node declares them.
EdgeRemoveOption	can_remove_out_edge (const data_flow::DataFlowGraph &graph, const Memlet *memlet) const override
	Is the edge in question removable, or will this make the node its an output on invalid?
EdgeRemoveOption	can_remove_in_edge (const data_flow::DataFlowGraph &graph, const Memlet *memlet) const override
bool	pointer_use_creates_side_effects (const DataFlowGraph &dataflow, const Function &func)
Public Member Functions inherited from sdfg::data_flow::CodeNode
	CodeNode (const CodeNode &data_node)=delete
CodeNode &	operator= (const CodeNode &)=delete
const std::vector< std::string > &	outputs () const
	Get output connector names (const).
const std::vector< std::string > &	inputs () const
	Get input connector names (const).
std::vector< std::string > &	outputs ()
	Get output connector names (mutable).
std::vector< std::string > &	inputs ()
	Get input connector names (mutable).
const std::string &	output (size_t index) const
	Get output connector name by index.
const std::string &	input (size_t index) const
	Get input connector name by index.
bool	has_constant_input (size_t index) const
	Check if an input is connected to a constant node.
Public Member Functions inherited from sdfg::data_flow::DataFlowNode
	DataFlowNode (const DataFlowNode &data_node)=delete
DataFlowNode &	operator= (const DataFlowNode &)=delete
graph::Vertex	vertex () const
	Get the graph vertex for this node.
const DataFlowGraph &	get_parent () const
	Get the parent dataflow graph (const).
DataFlowGraph &	get_parent ()
	Get the parent dataflow graph (mutable).
virtual bool	update_edge_removed (const std::string &out_conn)
Public Member Functions inherited from sdfg::Element
	Element (size_t element_id, const DebugInfo &debug_info)
virtual	~Element ()=default
size_t	element_id () const
const DebugInfo &	debug_info () const
void	set_debug_info (const DebugInfo &debug_info)
void	add_metadata (const std::string &key, const std::string &value)
void	remove_metadata (const std::string &key)
const std::string &	metadata (const std::string &key) const
const std::string *	metadata_if_exists (const std::string &key) const
const std::unordered_map< std::string, std::string > &	metadata () const
std::string_view	element_type () const
	Returns the type of the element as a human-readable string.

Additional Inherited Members
Static Public Member Functions inherited from sdfg::math::tensor::ElementWiseDataflowTensorNode
static std::vector< std::string >	build_input_conns (const std::string &modified_tensor_conn, const std::vector< std::string > &inputs)
static std::pair< structured_control_flow::Sequence *, std::vector< symbolic::Expression > >	add_eltwise_scope (builder::StructuredSDFGBuilder &builder, const DebugInfo &scope_deb_info, Sequence &parent, const std::vector< symbolic::Expression > &shape)
static std::unique_ptr< types::IType >	access_type (const std::pair< types::PrimitiveType, const TensorLayout * > &pair)
static bool	create_input (builder::StructuredSDFGBuilder &builder, structured_control_flow::Block &block, const data_flow::AccessNode &org_src, const std::pair< types::PrimitiveType, const TensorLayout * > &src_type, const ElementInput &needed_input, const std::vector< symbolic::Expression > &eltwise_subset, std::unordered_map< const data_flow::AccessNode , data_flow::AccessNode > &new_node_mapping)
static void	create_output (builder::StructuredSDFGBuilder &builder, structured_control_flow::Block &block, const data_flow::AccessNode &org_dst, const types::Tensor &dst_type, const ElementOutput &provided_output, const std::vector< symbolic::Expression > &eltwise_subset)
Static Public Member Functions inherited from sdfg::data_flow::LibraryNode
static bool	classof (const Element &element)
Static Public Member Functions inherited from sdfg::data_flow::CodeNode
static bool	classof (const Element &element)
	LLVM-style RTTI predicate: true if `element` is a CodeNode.
Static Public Member Functions inherited from sdfg::data_flow::DataFlowNode
static bool	classof (const Element &element)
	LLVM-style RTTI predicate: true if `element` is a DataFlowNode.
Static Public Attributes inherited from sdfg::data_flow::CodeNode
static constexpr ElementType	TypeGroup = ElementType::Tasklet \| ElementType::LibraryNode
	Bitmask of all concrete ElementTypes that are CodeNodes.
Static Public Attributes inherited from sdfg::data_flow::DataFlowNode
static constexpr ElementType	TypeGroup
	Bitmask of all concrete ElementTypes that are DataFlowNodes.
Protected Member Functions inherited from sdfg::math::tensor::ElementWiseDataflowTensorNode
data_flow::AccessNode &	create_tmp_access_node (builder::StructuredSDFGBuilder &builder, structured_control_flow::Block &block, const std::string &prefix, const types::IType &type) const
Protected Member Functions inherited from sdfg::math::tensor::TensorNode
void	validate_shape_matches (const std::vector< symbolic::Expression > &required_shape, const TensorLayout &layout, const std::string &name) const
Protected Member Functions inherited from sdfg::data_flow::LibraryNode
	LibraryNode (size_t element_id, const DebugInfo &debug_info, const graph::Vertex vertex, DataFlowGraph &parent, const LibraryNodeCode &code, const std::vector< std::string > &outputs, const std::vector< std::string > &inputs, const bool side_effect, const ImplementationType &implementation_type)
	Protected constructor for library nodes.
Protected Member Functions inherited from sdfg::data_flow::CodeNode
	CodeNode (size_t element_id, const DebugInfo &debug_info, const graph::Vertex vertex, DataFlowGraph &parent, const std::vector< std::string > &outputs, const std::vector< std::string > &inputs)
	Protected constructor for code nodes.
Protected Member Functions inherited from sdfg::data_flow::DataFlowNode
	DataFlowNode (size_t element_id, const DebugInfo &debug_info, const graph::Vertex vertex, DataFlowGraph &parent)
	Protected constructor for dataflow nodes.
Static Protected Member Functions inherited from sdfg::math::tensor::TensorNode
static data_flow::TaskletCode	get_integer_minmax_tasklet (types::PrimitiveType prim_type, bool is_max)
	Get the appropriate tasklet code for min/max operations on integers.
Protected Attributes inherited from sdfg::math::tensor::ElementWiseDataflowTensorNode
QuantizationType	fixed_quantization_
std::vector< symbolic::Expression >	shape_
	Logical tensor shape.
Protected Attributes inherited from sdfg::data_flow::LibraryNode
LibraryNodeCode	code_
	Operation identifier (e.g., "GEMM", "Add").
bool	side_effect_
	Whether this node has side effects.
ImplementationType	implementation_type_
	How to implement this node.
Protected Attributes inherited from sdfg::data_flow::CodeNode
std::vector< std::string >	outputs_
	Names of output connectors.
std::vector< std::string >	inputs_
	Names of input connectors.
Protected Attributes inherited from sdfg::Element
size_t	element_id_
DebugInfo	debug_info_
std::unordered_map< std::string, std::string >	metadata_

Constructor & Destructor Documentation

◆ CastNode()

sdfg::math::tensor::CastNode::CastNode	(	size_t	element_id,
		const DebugInfo &	debug_info,
		const graph::Vertex	vertex,
		data_flow::DataFlowGraph &	parent,
		const std::vector< symbolic::Expression > &	shape,
		types::PrimitiveType	target_type,
		const data_flow::ImplementationType &	impl_type = data_flow::ImplementationType_NONE )

Member Function Documentation

◆ clone()

std::unique_ptr< data_flow::DataFlowNode > sdfg::math::tensor::CastNode::clone	(	size_t	element_id,
		const graph::Vertex	vertex,
		data_flow::DataFlowGraph &	parent ) const

overridevirtual

Clone this node for graph transformations.

Parameters

element_id	New element identifier for the clone
vertex	New graph vertex for the clone
parent	Parent graph for the clone

Returns: Unique pointer to the cloned node

Pure virtual function that must be implemented by derived classes to support graph transformations and optimizations.

Implements sdfg::data_flow::DataFlowNode.

◆ expand_operation_dataflow()

ElementOutput sdfg::math::tensor::CastNode::expand_operation_dataflow	(	builder::StructuredSDFGBuilder &	builder,
		Block &	block,
		std::vector< ElementInput > &	needed_inputs,
		types::PrimitiveType	expected_type )

overridevirtual

Models the pure dataflow of the operation as applied to each element of the output as a function of the inputs.

Must fit into a single Dataflow block. All inputs will be single elements. The caller must handle potential broadcasts etc.

Parameters

builder
block
input_types	access nodes for the current element of each of the input tensors in their respective order
needed_inputs	list of inputs and their targets to connect with which scalar type
expected_type

Returns: (output producer, output-conn index), nullptr for producer to signal abort

Implements sdfg::math::tensor::ElementWiseDataflowTensorNode.

◆ supports_integer_types()

bool sdfg::math::tensor::CastNode::supports_integer_types ( ) const

inlineoverridevirtual

Check if this operation supports integer types.

Operations like add, sub, mul, div, min, max support both floating-point and integer types. Operations like exp, log, tanh, sigmoid only support floating-point types.

Returns: true if integer types are supported, false otherwise

Implements sdfg::math::tensor::TensorNode.

◆ target_type()

types::PrimitiveType sdfg::math::tensor::CastNode::target_type ( ) const

inline

◆ validate()

void sdfg::math::tensor::CastNode::validate ( const Function & function ) const

overridevirtual

Validates the element.

Exceptions

InvalidSDFGException if the element is invalid

Implements sdfg::Element.

The documentation for this class was generated from the following file:

sdfg/include/sdfg/data_flow/library_nodes/math/tensor/elementwise_ops/cast_node.h

Public Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ CastNode()

Member Function Documentation

◆ clone()

◆ expand_operation_dataflow()

◆ supports_integer_types()

◆ target_type()

◆ validate()