llvm::objcarc::PtrState Class Reference

This class summarizes several per-pointer runtime properties which are propagated through the flow graph. More...

#include "Transforms/ObjCARC/PtrState.h"

Inheritance diagram for llvm::objcarc::PtrState:

Collaboration diagram for llvm::objcarc::PtrState:

Public Member Functions
bool	IsKnownSafe () const
void	SetKnownSafe (const bool NewValue)
bool	IsTailCallRelease () const
void	SetTailCallRelease (const bool NewValue)
bool	IsTrackingImpreciseReleases () const
const MDNode *	GetReleaseMetadata () const
void	SetReleaseMetadata (MDNode *NewValue)
bool	IsCFGHazardAfflicted () const
void	SetCFGHazardAfflicted (const bool NewValue)
void	SetKnownPositiveRefCount ()
void	ClearKnownPositiveRefCount ()
bool	HasKnownPositiveRefCount () const
void	SetSeq (Sequence NewSeq)
Sequence	GetSeq () const
void	ClearSequenceProgress ()
void	ResetSequenceProgress (Sequence NewSeq)
void	Merge (const PtrState &Other, bool TopDown)
void	InsertCall (Instruction *I)
void	InsertReverseInsertPt (Instruction *I)
void	ClearReverseInsertPts ()
bool	HasReverseInsertPts () const
const RRInfo &	GetRRInfo () const

Protected Member Functions
	PtrState ()

Protected Attributes
bool	KnownPositiveRefCount = false
	True if the reference count is known to be incremented. More...
bool	Partial = false
	True if we've seen an opportunity for partial RR elimination, such as pushing calls into a CFG triangle or into one side of a CFG diamond. More...
unsigned char	Seq: 8
	The current position in the sequence. More...
RRInfo	RRI
	Unidirectional information about the current sequence. More...

Detailed Description

This class summarizes several per-pointer runtime properties which are propagated through the flow graph.

Definition at line 102 of file PtrState.h.

Constructor & Destructor Documentation

PtrState()

llvm::objcarc::PtrState::PtrState ( )

inlineprotected

Definition at line 117 of file PtrState.h.

Member Function Documentation

ClearKnownPositiveRefCount()

void PtrState::ClearKnownPositiveRefCount

(

)

Definition at line 133 of file PtrState.cpp.

References llvm::dbgs(), and LLVM_DEBUG.

ClearReverseInsertPts()

void llvm::objcarc::PtrState::ClearReverseInsertPts ( )

inline

Definition at line 162 of file PtrState.h.

References llvm::objcarc::RRInfo::ReverseInsertPts.

ClearSequenceProgress()

void llvm::objcarc::PtrState::ClearSequenceProgress ( )

inline

Definition at line 153 of file PtrState.h.

References llvm::objcarc::RRInfo::Merge(), Other, and llvm::objcarc::S_None.

Referenced by CheckForCanReleaseCFGHazard(), and CheckForUseCFGHazard().

GetReleaseMetadata()

const MDNode* llvm::objcarc::PtrState::GetReleaseMetadata ( ) const

inline

Definition at line 134 of file PtrState.h.

References llvm::objcarc::RRInfo::ReleaseMetadata.

GetRRInfo()

const RRInfo& llvm::objcarc::PtrState::GetRRInfo ( ) const

inline

Definition at line 166 of file PtrState.h.

Referenced by CheckForCanReleaseCFGHazard().

GetSeq()

Sequence llvm::objcarc::PtrState::GetSeq ( ) const

inline

Definition at line 151 of file PtrState.h.

Referenced by CheckForCanReleaseCFGHazard(), Merge(), and llvm::operator<<().

HasKnownPositiveRefCount()

bool llvm::objcarc::PtrState::HasKnownPositiveRefCount ( ) const

inline

Definition at line 147 of file PtrState.h.

Referenced by llvm::operator<<().

HasReverseInsertPts()

bool llvm::objcarc::PtrState::HasReverseInsertPts ( ) const

inline

Definition at line 164 of file PtrState.h.

References llvm::objcarc::RRInfo::ReverseInsertPts.

InsertCall()

void llvm::objcarc::PtrState::InsertCall ( Instruction *  I )

inline

Definition at line 158 of file PtrState.h.

References llvm::objcarc::RRInfo::Calls.

InsertReverseInsertPt()

void llvm::objcarc::PtrState::InsertReverseInsertPt ( Instruction *  I )

inline

Definition at line 160 of file PtrState.h.

References llvm::objcarc::RRInfo::ReverseInsertPts.

IsCFGHazardAfflicted()

bool llvm::objcarc::PtrState::IsCFGHazardAfflicted ( ) const

inline

Definition at line 138 of file PtrState.h.

References llvm::objcarc::RRInfo::CFGHazardAfflicted.

Referenced by llvm::operator<<().

IsKnownSafe()

bool llvm::objcarc::PtrState::IsKnownSafe ( ) const

inline

Definition at line 120 of file PtrState.h.

References llvm::objcarc::RRInfo::KnownSafe.

Referenced by CheckForCanReleaseCFGHazard(), CheckForUseCFGHazard(), and llvm::operator<<().

IsTailCallRelease()

bool llvm::objcarc::PtrState::IsTailCallRelease ( ) const

inline

Definition at line 124 of file PtrState.h.

References llvm::objcarc::RRInfo::IsTailCallRelease.

IsTrackingImpreciseReleases()

bool llvm::objcarc::PtrState::IsTrackingImpreciseReleases ( ) const

inline

Definition at line 130 of file PtrState.h.

References llvm::objcarc::RRInfo::ReleaseMetadata.

Referenced by llvm::operator<<().

Merge()

void PtrState::Merge	(	const PtrState &	Other,
		bool	TopDown
	)

Definition at line 151 of file PtrState.cpp.

References GetSeq(), KnownPositiveRefCount, MergeSeqs(), Partial, RRI, and llvm::objcarc::S_None.

ResetSequenceProgress()

void PtrState::ResetSequenceProgress

(

Sequence

NewSeq

)

Definition at line 144 of file PtrState.cpp.

References llvm::dbgs(), and LLVM_DEBUG.

SetCFGHazardAfflicted()

void llvm::objcarc::PtrState::SetCFGHazardAfflicted ( const bool  NewValue )

inline

Definition at line 140 of file PtrState.h.

References llvm::objcarc::RRInfo::CFGHazardAfflicted.

Referenced by CheckForCanReleaseCFGHazard(), and CheckForUseCFGHazard().

SetKnownPositiveRefCount()

void PtrState::SetKnownPositiveRefCount

(

)

Definition at line 128 of file PtrState.cpp.

References llvm::dbgs(), and LLVM_DEBUG.

SetKnownSafe()

void llvm::objcarc::PtrState::SetKnownSafe ( const bool  NewValue )

inline

Definition at line 122 of file PtrState.h.

References llvm::objcarc::RRInfo::KnownSafe.

SetReleaseMetadata()

void llvm::objcarc::PtrState::SetReleaseMetadata ( MDNode *  NewValue )

inline

Definition at line 136 of file PtrState.h.

References llvm::objcarc::RRInfo::ReleaseMetadata.

SetSeq()

void PtrState::SetSeq

(

Sequence

NewSeq

)

Definition at line 138 of file PtrState.cpp.

References llvm::dbgs(), and LLVM_DEBUG.

SetTailCallRelease()

void llvm::objcarc::PtrState::SetTailCallRelease ( const bool  NewValue )

inline

Definition at line 126 of file PtrState.h.

References llvm::objcarc::RRInfo::IsTailCallRelease.

Member Data Documentation

KnownPositiveRefCount

bool llvm::objcarc::PtrState::KnownPositiveRefCount = false

protected

True if the reference count is known to be incremented.

Definition at line 105 of file PtrState.h.

Referenced by Merge().

Partial

bool llvm::objcarc::PtrState::Partial = false

protected

True if we've seen an opportunity for partial RR elimination, such as pushing calls into a CFG triangle or into one side of a CFG diamond.

Definition at line 109 of file PtrState.h.

Referenced by Merge().

RRI

RRInfo llvm::objcarc::PtrState::RRI

protected

Unidirectional information about the current sequence.

Definition at line 115 of file PtrState.h.

Referenced by Merge().

Seq

unsigned char llvm::objcarc::PtrState::Seq

protected

The current position in the sequence.

Definition at line 112 of file PtrState.h.

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

• lib/Transforms/ObjCARC/PtrState.h
• lib/Transforms/ObjCARC/PtrState.cpp