llvm::Dependence Class Reference

A wrapper class to uniformly handle def-use and auxiliary dependence edges. More...

#include <DependenceIterator.h>

Collaboration diagram for llvm::Dependence:

Public Types
using	TupleRepr
	The "expanded" representation of a dependence, intended as the key for comparisons and hashing.

Public Member Functions
	Dependence (OpOperand *defUseDep)
	Wrap a def-use dependence, which is uniquely identified in the SSA graph by an OpOperand.
	Dependence (std::pair< Operation *, Operation * > auxDep)
	Wrap an auxiliary dependence, identified by the pair of its endpoints.
	Dependence (Operation *from, Operation *to)
	Wrap an auxiliary dependence between from and to.
	Dependence ()
	Construct an invalid dependence.
bool	isAuxiliary () const
	Return true if this is a valid auxiliary dependence.
bool	isDefUse () const
	Return true if this is a valid def-use dependence.
bool	isInvalid () const
	Return true if this is an invalid dependence.
Operation *	getSource () const
	Return the source of the dependence.
Operation *	getDestination () const
	Return the destination of the dependence.
std::optional< unsigned >	getSourceIndex () const
	Return the source operation's result number, if applicable.
std::optional< unsigned >	getDestinationIndex () const
	Return the destination operation's operand number, if applicable.
TupleRepr	getAsTuple () const
	Return the tuple representation of this dependence.
bool	operator== (const Dependence &other) const

Private Attributes
Operation *	auxSrc
union {
Operation *   auxDst
OpOperand *   defUse
};

Detailed Description

A wrapper class to uniformly handle def-use and auxiliary dependence edges.

Should be small enough (two pointers) to be passed around by value.

Definition at line 34 of file DependenceIterator.h.

Member Typedef Documentation

TupleRepr

using circt::scheduling::detail::Dependence::TupleRepr

Initial value:

 
      std::tuple<Operation *, Operation *, std::optional<unsigned>,
                 std::optional<unsigned>>

The "expanded" representation of a dependence, intended as the key for comparisons and hashing.

Definition at line 38 of file DependenceIterator.h.

Constructor & Destructor Documentation

Dependence() [1/4]

circt::scheduling::detail::Dependence::Dependence ( OpOperand * defUseDep )

inline

Wrap a def-use dependence, which is uniquely identified in the SSA graph by an OpOperand.

Definition at line 44 of file DependenceIterator.h.

Dependence() [2/4]

circt::scheduling::detail::Dependence::Dependence ( std::pair< Operation *, Operation * > auxDep )

inline

Wrap an auxiliary dependence, identified by the pair of its endpoints.

Definition at line 46 of file DependenceIterator.h.

Dependence() [3/4]

circt::scheduling::detail::Dependence::Dependence ( Operation * from, Operation * to )

inline

Wrap an auxiliary dependence between from and to.

Definition at line 49 of file DependenceIterator.h.

Dependence() [4/4]

circt::scheduling::detail::Dependence::Dependence ( )

inline

Construct an invalid dependence.

Definition at line 51 of file DependenceIterator.h.

Member Function Documentation

getAsTuple()

Dependence::TupleRepr Dependence::getAsTuple

(

)

const

Return the tuple representation of this dependence.

Definition at line 511 of file Problems.cpp.

getDestination()

Operation * Dependence::getDestination

(

)

const

Return the destination of the dependence.

Definition at line 493 of file Problems.cpp.

getDestinationIndex()

std::optional< unsigned > Dependence::getDestinationIndex

(

)

const

Return the destination operation's operand number, if applicable.

Definition at line 505 of file Problems.cpp.

getSource()

Operation * Dependence::getSource

(

)

const

Return the source of the dependence.

Definition at line 489 of file Problems.cpp.

getSourceIndex()

std::optional< unsigned > Dependence::getSourceIndex

(

)

const

Return the source operation's result number, if applicable.

Definition at line 497 of file Problems.cpp.

isAuxiliary()

bool circt::scheduling::detail::Dependence::isAuxiliary ( ) const

inline

Return true if this is a valid auxiliary dependence.

Definition at line 54 of file DependenceIterator.h.

isDefUse()

bool circt::scheduling::detail::Dependence::isDefUse ( ) const

inline

Return true if this is a valid def-use dependence.

Definition at line 56 of file DependenceIterator.h.

isInvalid()

bool circt::scheduling::detail::Dependence::isInvalid ( ) const

inline

Return true if this is an invalid dependence.

Definition at line 58 of file DependenceIterator.h.

operator==()

bool Dependence::operator==

(

const Dependence &

other

)

const

Definition at line 516 of file Problems.cpp.

Member Data Documentation

[union]

union { ... } circt::scheduling::detail::Dependence

auxDst

Operation* circt::scheduling::detail::Dependence::auxDst

Definition at line 78 of file DependenceIterator.h.

auxSrc

Operation* circt::scheduling::detail::Dependence::auxSrc

private

Definition at line 76 of file DependenceIterator.h.

defUse

OpOperand* circt::scheduling::detail::Dependence::defUse

Definition at line 79 of file DependenceIterator.h.

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

• /home/runner/work/circt-www/circt-www/circt_src/include/circt/Scheduling/DependenceIterator.h
• /home/runner/work/circt-www/circt-www/circt_src/lib/Scheduling/Problems.cpp