llvm::objcarc::ObjCARCAAResult Class Reference

This is a simple alias analysis implementation that uses knowledge of ARC constructs to answer queries. More...

#include "llvm/Analysis/ObjCARCAliasAnalysis.h"

Inheritance diagram for llvm::objcarc::ObjCARCAAResult:

Public Member Functions
	ObjCARCAAResult (const DataLayout &DL)
	ObjCARCAAResult (ObjCARCAAResult &&Arg)
bool	invalidate (Function &, const PreservedAnalyses &, FunctionAnalysisManager::Invalidator &)
	Handle invalidation events from the new pass manager.
AliasResult	alias (const MemoryLocation &LocA, const MemoryLocation &LocB, AAQueryInfo &AAQI, const Instruction *CtxI)
ModRefInfo	getModRefInfoMask (const MemoryLocation &Loc, AAQueryInfo &AAQI, bool IgnoreLocals)
MemoryEffects	getMemoryEffects (const Function *F)
ModRefInfo	getModRefInfo (const CallBase *Call, const MemoryLocation &Loc, AAQueryInfo &AAQI)
MemoryEffects	getMemoryEffects (const CallBase *Call, AAQueryInfo &AAQI)
ModRefInfo	getModRefInfo (const CallBase *Call1, const CallBase *Call2, AAQueryInfo &AAQI)
Public Member Functions inherited from llvm::AAResultBase
AliasResult	alias (const MemoryLocation &LocA, const MemoryLocation &LocB, AAQueryInfo &AAQI, const Instruction *I)
AliasResult	aliasErrno (const MemoryLocation &Loc, const Module *M)
ModRefInfo	getModRefInfoMask (const MemoryLocation &Loc, AAQueryInfo &AAQI, bool IgnoreLocals)
ModRefInfo	getArgModRefInfo (const CallBase *Call, unsigned ArgIdx)
MemoryEffects	getMemoryEffects (const CallBase *Call, AAQueryInfo &AAQI)
MemoryEffects	getMemoryEffects (const Function *F)
ModRefInfo	getModRefInfo (const CallBase *Call, const MemoryLocation &Loc, AAQueryInfo &AAQI)
ModRefInfo	getModRefInfo (const CallBase *Call1, const CallBase *Call2, AAQueryInfo &AAQI)

Additional Inherited Members
Protected Member Functions inherited from llvm::AAResultBase
	AAResultBase ()=default
	AAResultBase (const AAResultBase &Arg)
	AAResultBase (AAResultBase &&Arg)

Detailed Description

This is a simple alias analysis implementation that uses knowledge of ARC constructs to answer queries.

TODO: This class could be generalized to know about other ObjC-specific tricks. Such as knowing that ivars in the non-fragile ABI are non-aliasing even though their offsets are dynamic.

Definition at line 36 of file ObjCARCAliasAnalysis.h.

Constructor & Destructor Documentation

ObjCARCAAResult() [1/2]

llvm::objcarc::ObjCARCAAResult::ObjCARCAAResult ( const DataLayout & DL )

inlineexplicit

Definition at line 40 of file ObjCARCAliasAnalysis.h.

Referenced by ObjCARCAAResult().

ObjCARCAAResult() [2/2]

llvm::objcarc::ObjCARCAAResult::ObjCARCAAResult ( ObjCARCAAResult && Arg )

inline

Definition at line 41 of file ObjCARCAliasAnalysis.h.

References llvm::AAResultBase::AAResultBase(), llvm::move(), and ObjCARCAAResult().

Member Function Documentation

alias()

AliasResult ObjCARCAAResult::alias	(	const MemoryLocation &	LocA,
		const MemoryLocation &	LocB,
		AAQueryInfo &	AAQI,
		const Instruction *	CtxI )

Definition at line 40 of file ObjCARCAliasAnalysis.cpp.

References llvm::MemoryLocation::AATags, llvm::AAResultBase::alias(), llvm::objcarc::EnableARCOpts, llvm::MemoryLocation::getBeforeOrAfter(), llvm::objcarc::GetRCIdentityRoot(), llvm::objcarc::GetUnderlyingObjCPtr(), llvm::AliasResult::MayAlias, llvm::AliasResult::NoAlias, llvm::MemoryLocation::Ptr, and llvm::MemoryLocation::Size.

getMemoryEffects() [1/2]

MemoryEffects llvm::AAResultBase::getMemoryEffects ( const CallBase * Call, AAQueryInfo & AAQI )

inline

Definition at line 886 of file AliasAnalysis.h.

getMemoryEffects() [2/2]

MemoryEffects ObjCARCAAResult::getMemoryEffects

(

const Function *

F

)

Definition at line 100 of file ObjCARCAliasAnalysis.cpp.

References llvm::objcarc::EnableARCOpts, F, llvm::objcarc::GetFunctionClass(), llvm::AAResultBase::getMemoryEffects(), llvm::MemoryEffectsBase< IRMemLocation >::none(), and llvm::objcarc::NoopCast.

getModRefInfo() [1/2]

ModRefInfo ObjCARCAAResult::getModRefInfo	(	const CallBase *	Call,
		const MemoryLocation &	Loc,
		AAQueryInfo &	AAQI )

Definition at line 114 of file ObjCARCAliasAnalysis.cpp.

References llvm::objcarc::Autorelease, llvm::objcarc::AutoreleasepoolPush, llvm::objcarc::AutoreleaseRV, llvm::objcarc::Call, llvm::objcarc::EnableARCOpts, llvm::objcarc::FusedRetainAutorelease, llvm::objcarc::FusedRetainAutoreleaseRV, llvm::objcarc::GetBasicARCInstKind(), llvm::AAResultBase::getModRefInfo(), llvm::NoModRef, llvm::objcarc::NoopCast, llvm::objcarc::Retain, and llvm::objcarc::RetainRV.

getModRefInfo() [2/2]

ModRefInfo llvm::AAResultBase::getModRefInfo ( const CallBase * Call1, const CallBase * Call2, AAQueryInfo & AAQI )

inline

Definition at line 899 of file AliasAnalysis.h.

getModRefInfoMask()

ModRefInfo ObjCARCAAResult::getModRefInfoMask	(	const MemoryLocation &	Loc,
		AAQueryInfo &	AAQI,
		bool	IgnoreLocals )

Definition at line 75 of file ObjCARCAliasAnalysis.cpp.

References llvm::objcarc::EnableARCOpts, llvm::MemoryLocation::getBeforeOrAfter(), llvm::AAResultBase::getModRefInfoMask(), llvm::objcarc::GetRCIdentityRoot(), llvm::objcarc::GetUnderlyingObjCPtr(), llvm::isNoModRef(), llvm::ModRef, and llvm::NoModRef.

invalidate()

bool llvm::objcarc::ObjCARCAAResult::invalidate ( Function & , const PreservedAnalyses & , FunctionAnalysisManager::Invalidator &  )

inline

Handle invalidation events from the new pass manager.

By definition, this result is stateless and so remains valid.

Definition at line 47 of file ObjCARCAliasAnalysis.h.

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

• include/llvm/Analysis/ObjCARCAliasAnalysis.h
• lib/Analysis/ObjCARCAliasAnalysis.cpp