llvm::SetState< BaseTy > Struct Template Reference

Simple state for a set. More...

#include "llvm/Transforms/IPO/Attributor.h"

Inheritance diagram for llvm::SetState< BaseTy >:

Classes
struct	SetContents
	A wrapper around a set that has semantics for handling unions and intersections with a "universal" set that contains all elements. More...

Public Member Functions
	SetState ()
	SetState (const DenseSet< BaseTy > &Known)
	Initializes the known state with an initial set and initializes the assumed state as universal.
bool	isValidState () const override
	Return if this abstract state is in a valid state.
bool	isAtFixpoint () const override
	Return if this abstract state is fixed, thus does not need to be updated if information changes as it cannot change itself.
ChangeStatus	indicateOptimisticFixpoint () override
	Indicate that the abstract state should converge to the optimistic state.
ChangeStatus	indicatePessimisticFixpoint () override
	Indicate that the abstract state should converge to the pessimistic state.
const SetContents &	getKnown () const
	Return the known state encoding.
const SetContents &	getAssumed () const
	Return the assumed state encoding.
bool	setContains (const BaseTy &Elem) const
	Returns if the set state contains the element.
bool	getIntersection (const SetContents &RHS)
	Performs the set intersection between this set and RHS.
bool	getUnion (const SetContents &RHS)
	Performs the set union between this set and RHS.
Public Member Functions inherited from llvm::AbstractState
virtual	~AbstractState ()=default

Detailed Description

template<typename BaseTy>
struct llvm::SetState< BaseTy >

Simple state for a set.

This represents a state containing a set of values. The interface supports modelling sets that contain all possible elements. The state's internal value is modified using union or intersection operations.

Definition at line 3019 of file Attributor.h.

Constructor & Destructor Documentation

SetState() [1/2]

template<typename BaseTy>

llvm::SetState< BaseTy >::SetState ( )

inline

Definition at line 3081 of file Attributor.h.

SetState() [2/2]

template<typename BaseTy>

llvm::SetState< BaseTy >::SetState ( const DenseSet< BaseTy > & Known )

inline

Initializes the known state with an initial set and initializes the assumed state as universal.

Definition at line 3085 of file Attributor.h.

Member Function Documentation

getAssumed()

template<typename BaseTy>

const SetContents & llvm::SetState< BaseTy >::getAssumed ( ) const

inline

Return the assumed state encoding.

Definition at line 3108 of file Attributor.h.

getIntersection()

template<typename BaseTy>

bool llvm::SetState< BaseTy >::getIntersection ( const SetContents & RHS )

inline

Performs the set intersection between this set and RHS.

Returns true if changes were made.

Definition at line 3117 of file Attributor.h.

References RHS.

getKnown()

template<typename BaseTy>

const SetContents & llvm::SetState< BaseTy >::getKnown ( ) const

inline

Return the known state encoding.

Definition at line 3105 of file Attributor.h.

getUnion()

template<typename BaseTy>

bool llvm::SetState< BaseTy >::getUnion ( const SetContents & RHS )

inline

Performs the set union between this set and RHS.

Returns true if changes were made.

Definition at line 3132 of file Attributor.h.

References RHS.

indicateOptimisticFixpoint()

template<typename BaseTy>

ChangeStatus llvm::SetState< BaseTy >::indicateOptimisticFixpoint ( )

inlineoverridevirtual

Indicate that the abstract state should converge to the optimistic state.

This will usually make the optimistically assumed state the known to be true state.

Returns

ChangeStatus::UNCHANGED as the assumed value should not change.

Implements llvm::AbstractState.

Definition at line 3092 of file Attributor.h.

References llvm::UNCHANGED.

indicatePessimisticFixpoint()

template<typename BaseTy>

ChangeStatus llvm::SetState< BaseTy >::indicatePessimisticFixpoint ( )

inlineoverridevirtual

Indicate that the abstract state should converge to the pessimistic state.

This will usually revert the optimistically assumed state to the known to be true state.

Returns

ChangeStatus::CHANGED as the assumed value may change.

Implements llvm::AbstractState.

Definition at line 3098 of file Attributor.h.

References llvm::CHANGED.

isAtFixpoint()

template<typename BaseTy>

bool llvm::SetState< BaseTy >::isAtFixpoint ( ) const

inlineoverridevirtual

Return if this abstract state is fixed, thus does not need to be updated if information changes as it cannot change itself.

Implements llvm::AbstractState.

Definition at line 3090 of file Attributor.h.

isValidState()

template<typename BaseTy>

bool llvm::SetState< BaseTy >::isValidState ( ) const

inlineoverridevirtual

Return if this abstract state is in a valid state.

If false, no information provided should be used.

Implements llvm::AbstractState.

Definition at line 3088 of file Attributor.h.

setContains()

template<typename BaseTy>

bool llvm::SetState< BaseTy >::setContains ( const BaseTy & Elem ) const

inline

Returns if the set state contains the element.

Definition at line 3111 of file Attributor.h.

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

• include/llvm/Transforms/IPO/Attributor.h