LLVM  6.0.0svn
Public Member Functions | List of all members
llvm::objcarc::TopDownPtrState Struct Reference

#include "Transforms/ObjCARC/PtrState.h"

Inheritance diagram for llvm::objcarc::TopDownPtrState:
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Collaboration diagram for llvm::objcarc::TopDownPtrState:
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Public Member Functions

 TopDownPtrState ()
 
bool InitTopDown (ARCInstKind Kind, Instruction *I)
 (Re-)Initialize this bottom up pointer returning true if we detected a pointer with nested releases. More...
 
bool MatchWithRelease (ARCMDKindCache &Cache, Instruction *Release)
 Return true if this set of retains can be paired with the given release. More...
 
void HandlePotentialUse (Instruction *Inst, const Value *Ptr, ProvenanceAnalysis &PA, ARCInstKind Class)
 
bool HandlePotentialAlterRefCount (Instruction *Inst, const Value *Ptr, ProvenanceAnalysis &PA, ARCInstKind Class)
 
- Public Member Functions inherited from llvm::objcarc::PtrState
bool IsKnownSafe () const
 
void SetKnownSafe (const bool NewValue)
 
bool IsTailCallRelease () const
 
void SetTailCallRelease (const bool NewValue)
 
bool IsTrackingImpreciseReleases () const
 
const MDNodeGetReleaseMetadata () 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 RRInfoGetRRInfo () const
 

Additional Inherited Members

- Protected Member Functions inherited from llvm::objcarc::PtrState
 PtrState ()
 
- Protected Attributes inherited from llvm::objcarc::PtrState
bool KnownPositiveRefCount
 True if the reference count is known to be incremented. More...
 
bool Partial
 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

Definition at line 188 of file PtrState.h.

Constructor & Destructor Documentation

◆ TopDownPtrState()

llvm::objcarc::TopDownPtrState::TopDownPtrState ( )
inline

Definition at line 189 of file PtrState.h.

References I, Kind, and llvm::objcarc::Release.

Member Function Documentation

◆ HandlePotentialAlterRefCount()

bool TopDownPtrState::HandlePotentialAlterRefCount ( Instruction Inst,
const Value Ptr,
ProvenanceAnalysis PA,
ARCInstKind  Class 
)

◆ HandlePotentialUse()

void TopDownPtrState::HandlePotentialUse ( Instruction Inst,
const Value Ptr,
ProvenanceAnalysis PA,
ARCInstKind  Class 
)

◆ InitTopDown()

bool TopDownPtrState::InitTopDown ( ARCInstKind  Kind,
Instruction I 
)

(Re-)Initialize this bottom up pointer returning true if we detected a pointer with nested releases.

Definition at line 300 of file PtrState.cpp.

References llvm::objcarc::RetainRV, and llvm::objcarc::S_Retain.

Referenced by CheckForCanReleaseCFGHazard().

◆ MatchWithRelease()

bool TopDownPtrState::MatchWithRelease ( ARCMDKindCache Cache,
Instruction Release 
)

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