#include <FSM_NI_SSA_liveness.hpp>

Inheritance diagram for FSM_NI_SSA_liveness:

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Collaboration diagram for FSM_NI_SSA_liveness:

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Public Member Functions
	FSM_NI_SSA_liveness (const ParameterConstRef _parameters, const HLS_managerRef HLSMgr, unsigned int funId, const DesignFlowManagerConstRef design_flow_manager)
	Constructor. More...

	~FSM_NI_SSA_liveness () override
	Destructor. More...

DesignFlowStep_Status	InternalExec () override
	Execute the step. More...

void	Initialize () override
	Initialize the step (i.e., like a constructor, but executed just before exec. More...

Public Member Functions inherited from liveness_computer
	liveness_computer (const ParameterConstRef Param, const HLS_managerRef HLSMgr, unsigned int funId, const DesignFlowManagerConstRef design_flow_manager, const HLSFlowStep_Type hls_flow_step_type)
	Constructor. More...

	~liveness_computer () override
	Destructor. More...

Public Member Functions inherited from HLSFunctionStep
	HLSFunctionStep (const ParameterConstRef Param, const HLS_managerRef HLSMgr, unsigned int funId, const DesignFlowManagerConstRef design_flow_manager, const HLSFlowStep_Type hls_flow_step_type, const HLSFlowStepSpecializationConstRef hls_flow_step_specialization=HLSFlowStepSpecializationConstRef())
	Constructor. More...

	~HLSFunctionStep () override
	Destructor. More...

bool	HasToBeExecuted () const override
	Check if this step has actually to be executed. More...

std::string	GetSignature () const final
	Return a unified identifier of this design step. More...

std::string	GetName () const final
	Return the name of this design step. More...

DesignFlowStep_Status	Exec () final
	Execute the step. More...

Public Member Functions inherited from HLS_step
	HLS_step (const ParameterConstRef _parameters, const HLS_managerRef HLSMgr, const DesignFlowManagerConstRef design_flow_manager, const HLSFlowStep_Type hls_flow_step_type, const HLSFlowStepSpecializationConstRef hls_flow_step_specialization=HLSFlowStepSpecializationConstRef())
	Constructor. More...

	~HLS_step () override
	Destructor. More...

std::string	GetSignature () const override
	Return a unified identifier of this design step. More...

std::string	GetName () const override
	Return the name of this design step. More...

virtual std::string	GetKindText () const
	Return the name of the type of this frontend flow step. More...

DesignFlowStepFactoryConstRef	CGetDesignFlowStepFactory () const final
	Return the factory to create this type of steps. More...

void	ComputeRelationships (DesignFlowStepSet &design_flow_step_set, const DesignFlowStep::RelationshipType relationship_type) override
	Compute the relationships of a step with other steps. More...

Public Member Functions inherited from DesignFlowStep
	DesignFlowStep (const DesignFlowManagerConstRef design_flow_manager, const ParameterConstRef parameters)
	Constructor. More...

virtual	~DesignFlowStep ()
	Destructor. More...

DesignFlowStep_Status	GetStatus () const
	Return the status of this design step. More...

virtual void	WriteDot (std::ostream &out) const
	Write the label for a dot graph. More...

bool	IsComposed () const
	Returns if this step is composed. More...

int	CGetDebugLevel () const
	Return the debug level of the step. More...

virtual void	PrintInitialIR () const
	Dump the initial intermediate representation. More...

virtual void	PrintFinalIR () const
	Dump the final intermediate representation. More...

Additional Inherited Members
Public Types inherited from DesignFlowStep
enum	RelationshipType { DEPENDENCE_RELATIONSHIP, INVALIDATION_RELATIONSHIP, PRECEDENCE_RELATIONSHIP }
	The relationship type. More...

Static Public Member Functions inherited from HLSFunctionStep
static std::string	ComputeSignature (const HLSFlowStep_Type hls_flow_step_type, const HLSFlowStepSpecializationConstRef hls_flow_step_specialization, const unsigned int function_id)
	Compute the signature of a hls flow step. More...

Static Public Member Functions inherited from HLS_step
static std::string	EnumToName (const HLSFlowStep_Type hls_flow_step_type)
	Given a HLS flow step type, return the name of the type. More...

static const std::string	ComputeSignature (const HLSFlowStep_Type hls_flow_step_type, const HLSFlowStepSpecializationConstRef hls_flow_step_specialization)
	Compute the signature of a hls flow step. More...

Protected Member Functions inherited from liveness_computer
const CustomUnorderedSet< std::tuple< HLSFlowStep_Type, HLSFlowStepSpecializationConstRef, HLSFlowStep_Relationship > >	ComputeHLSRelationships (const DesignFlowStep::RelationshipType relationship_type) const override
	Compute the relationship of this step. More...

Protected Member Functions inherited from HLSFunctionStep
void	ComputeRelationships (DesignFlowStepSet &design_flow_step_set, const DesignFlowStep::RelationshipType relationship_type) override
	Compute the relationships of a step with other steps. More...

Protected Attributes inherited from HLSFunctionStep
std::map< unsigned int, unsigned int >	last_bb_ver
	last bb version of the called functions More...

std::map< unsigned int, unsigned int >	last_bitvalue_ver
	The version of bit value IR representation on which this step was applied. More...

const unsigned int	funId
	identifier of the function to be processed (0 means that it is a global step) More...

hlsRef	HLS
	HLS data structure of the function to be analyzed. More...

unsigned int	bb_version
	The version of bb intermediate representation on which this step was applied. More...

unsigned int	bitvalue_version
	The version of bitvalue on which this step was applied. More...

unsigned int	memory_version
	The version of memory representation on which this step was applied. More...

Protected Attributes inherited from HLS_step
const HLS_managerRef	HLSMgr
	information about all the HLS synthesis More...

const HLSFlowStep_Type	hls_flow_step_type
	The type of this step. More...

const HLSFlowStepSpecializationConstRef	hls_flow_step_specialization
	The information about specialization. More...

Protected Attributes inherited from DesignFlowStep
bool	composed
	True if this step represents a composition of design flow steps (e.g., a flow); must be set by specialized constructors. More...

const Wrefcount< const DesignFlowManager >	design_flow_manager
	The design flow manager. More...

const ParameterConstRef	parameters
	Set of input parameters. More...

int	debug_level
	The debug level. More...

const int	output_level
	The output level. More...

Static Protected Attributes inherited from HLS_step
static CustomUnorderedMap< std::string, HLSFlowStep_Type >	command_line_name_to_enum
	Map hls step name to enum. More...

Detailed Description

Definition at line 50 of file FSM_NI_SSA_liveness.hpp.

Constructor & Destructor Documentation

◆ FSM_NI_SSA_liveness()

FSM_NI_SSA_liveness::FSM_NI_SSA_liveness	(	const ParameterConstRef	_parameters,
		const HLS_managerRef	_HLSMgr,
		unsigned int	_funId,
		const DesignFlowManagerConstRef	_design_flow_manager
	)

Constructor.

Autoheader include.

Parameters

design_flow_manager is the design flow manager

. include behavior includes hls includes HLS/liveness include hls/memory include hls/stg includes tree includes utility include

Definition at line 84 of file FSM_NI_SSA_liveness.cpp.

References DesignFlowStep::debug_level, FSM_NI_SSA_LIVENESS, GET_CLASS, DesignFlowStep::parameters, and ~FSM_NI_SSA_liveness().

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◆ ~FSM_NI_SSA_liveness()

FSM_NI_SSA_liveness::~FSM_NI_SSA_liveness ( )

overridedefault

Destructor.

Referenced by FSM_NI_SSA_liveness().

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Member Function Documentation

◆ Initialize()

void FSM_NI_SSA_liveness::Initialize ( )

overridevirtual

Initialize the step (i.e., like a constructor, but executed just before exec.

Reimplemented from HLSFunctionStep.

Definition at line 93 of file FSM_NI_SSA_liveness.cpp.

References HLSFunctionStep::HLS, HLS_step::HLSMgr, HLSFunctionStep::Initialize(), DesignFlowStep::parameters, and hls::Rliv.

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◆ InternalExec()

DesignFlowStep_Status FSM_NI_SSA_liveness::InternalExec ( )

overridevirtual

Execute the step.

Returns: the exit status of this step

Map between basic block node index and vertices

compute which operation defines a variable (add_op_definition) compute in which states an operation complete the computation (add_state_for_ending_op) compute the set of supporting states compute the set of dummy states

compute live_out

compute the live in of a state by traversing the state list in topological order

fix the live in/out of dummy states

add all the uses of ds to src_state

extend the lifetime of used variable to reduce the critical path

compute in which state an operation is in execution compute state in relation: on which transition a variable is live in compute state out relation: on which transition a variable is live out

now we look for the last state with operations belonging to basic block bb_index

print the analysis result

Implements HLSFunctionStep.

Definition at line 156 of file FSM_NI_SSA_liveness.cpp.

References liveness::add_dummy_state(), liveness::add_name(), liveness::add_op_definition(), liveness::add_state_for_ending_op(), liveness::add_state_for_running_op(), liveness::add_state_in_for_var(), liveness::add_state_out_for_var(), liveness::add_support_state(), StateTransitionGraphManager::CGetAstg(), FunctionBehavior::CGetBBGraph(), BBGraph::CGetBBGraphInfo(), BBGraph::CGetBBNodeInfo(), FunctionBehavior::CGetBehavioralHelper(), FunctionBehavior::CGetOpGraph(), OpGraph::CGetOpNodeInfo(), StateTransitionGraphManager::CGetStg(), DesignFlowStep::debug_level, DEBUG_LEVEL_PEDANTIC, DEBUG_LEVEL_VERY_PEDANTIC, DEFINITION, FunctionBehavior::DFG, FunctionBehavior::FBB, hls::functionId, HLSFunctionStep::funId, get_bb_index_from_state_info(), StateTransitionGraphManager::get_entry_state(), StateTransitionGraphManager::get_exit_state(), BehavioralHelper::get_function_name(), liveness::get_live_in(), liveness::get_live_out(), GET_NAME, StateTransitionGraphManager::get_state_name(), GET_TYPE, HLSFunctionStep::HLS, HLS_step::HLSMgr, INDENT_DBG_MEX, tree_helper::is_parameter(), tree_helper::is_ssa_name(), tree_helper::is_virtual(), NULL_VERTEX, PRINT_DBG_MEX, PRINT_DBG_STRING, BehavioralHelper::PrintVariable(), hls::Rliv, SCALAR, liveness::set_live_in(), liveness::set_live_out(), hls::STG, STR, SUCCESS, lenet_tvm::target, THROW_ASSERT, THROW_ERROR, TYPE_NOP, TYPE_PHI, update_liveout_with_prev(), and USE.

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

/workspace/src/HLS/liveness/FSM_NI_SSA_liveness.hpp
/workspace/src/HLS/liveness/FSM_NI_SSA_liveness.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ FSM_NI_SSA_liveness()

◆ ~FSM_NI_SSA_liveness()

Member Function Documentation

◆ Initialize()

◆ InternalExec()