jlm::llvm::NodeReduction Class Reference

#include <NodeReduction.hpp>

Inheritance diagram for jlm::llvm::NodeReduction:

Collaboration diagram for jlm::llvm::NodeReduction:

Classes
class	Statistics

Public Member Functions
	~NodeReduction () noexcept override
	NodeReduction ()
	NodeReduction (const NodeReduction &)=delete
	NodeReduction (NodeReduction &&)=delete
NodeReduction &	operator= (const NodeReduction &)=delete
NodeReduction &	operator= (NodeReduction &&)=delete
void	Run (rvsdg::RvsdgModule &rvsdgModule, util::StatisticsCollector &statisticsCollector) override
	Perform RVSDG transformation.
Public Member Functions inherited from jlm::rvsdg::Transformation
virtual	~Transformation () noexcept
	Transformation (std::string_view Name)
const std::string_view &	GetName () const noexcept
void	Run (RvsdgModule &module)
	Perform RVSDG transformation.

Private Member Functions
void	ReduceNodesInRegion (rvsdg::Region &region)
bool	ReduceStructuralNode (rvsdg::StructuralNode &structuralNode)
bool	ReduceGammaNode (rvsdg::GammaNode &gammaNode)
bool	reduceThetaNode (rvsdg::ThetaNode &thetaNode)
bool	ReduceSimpleNode (rvsdg::SimpleNode &simpleNode)

Private Attributes
std::unique_ptr< Statistics >	Statistics_

Detailed Description

The node reduction transformation performs a series of peephole optimizations in the RVSDG. The nodes in a region are visited top-down and reductions are performed until a fix-point is reached, i.e., until no peephole optimization can be applied any longer to any node in a region.

Definition at line 34 of file NodeReduction.hpp.

Constructor & Destructor Documentation

~NodeReduction()

jlm::llvm::NodeReduction::~NodeReduction ( )

overridedefaultnoexcept

NodeReduction() [1/3]

jlm::llvm::NodeReduction::NodeReduction

(

)

Definition at line 320 of file NodeReduction.cpp.

NodeReduction() [2/3]

jlm::llvm::NodeReduction::NodeReduction ( const NodeReduction &  )

delete

NodeReduction() [3/3]

jlm::llvm::NodeReduction::NodeReduction ( NodeReduction &&  )

delete

Member Function Documentation

operator=() [1/2]

NodeReduction & jlm::llvm::NodeReduction::operator= ( const NodeReduction &  )

delete

operator=() [2/2]

NodeReduction & jlm::llvm::NodeReduction::operator= ( NodeReduction &&  )

delete

ReduceGammaNode()

bool jlm::llvm::NodeReduction::ReduceGammaNode ( rvsdg::GammaNode &  gammaNode )

private

Definition at line 410 of file NodeReduction.cpp.

ReduceNodesInRegion()

void jlm::llvm::NodeReduction::ReduceNodesInRegion ( rvsdg::Region &  region )

private

Definition at line 341 of file NodeReduction.cpp.

ReduceSimpleNode()

bool jlm::llvm::NodeReduction::ReduceSimpleNode ( rvsdg::SimpleNode &  simpleNode )

private

Definition at line 433 of file NodeReduction.cpp.

ReduceStructuralNode()

bool jlm::llvm::NodeReduction::ReduceStructuralNode ( rvsdg::StructuralNode &  structuralNode )

private

Reduces the structural node structuralNode.

Note

This method only returns true if the node itself could be reduced, but not if any of the nodes in its subregions could be reduced.

Parameters

structuralNode

The structural node that is supposed to be reduced.

Returns

True, if the structural node could be reduced, otherwise false.

Definition at line 376 of file NodeReduction.cpp.

reduceThetaNode()

bool jlm::llvm::NodeReduction::reduceThetaNode ( rvsdg::ThetaNode &  thetaNode )

private

Definition at line 423 of file NodeReduction.cpp.

Run()

void jlm::llvm::NodeReduction::Run ( rvsdg::RvsdgModule &  module, util::StatisticsCollector &  statisticsCollector  )

overridevirtual

Perform RVSDG transformation.

Note

This method is expected to be called multiple times. An implementation is required to reset the objects' internal state to ensure correct behavior after every invocation.

Parameters

module	RVSDG module the transformation is performed on.
statisticsCollector	Statistics collector for collecting transformation statistics.

Implements jlm::rvsdg::Transformation.

Definition at line 325 of file NodeReduction.cpp.

Member Data Documentation

Statistics_

std::unique_ptr<Statistics> jlm::llvm::NodeReduction::Statistics_

private

Definition at line 81 of file NodeReduction.hpp.

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

• jlm/llvm/opt/NodeReduction.hpp
• jlm/llvm/opt/NodeReduction.cpp