llvm::BatchAAResults Class Reference

This class is a wrapper over an AAResults, and it is intended to be used only when there are no IR changes inbetween queries. More...

#include "llvm/Analysis/AliasAnalysis.h"

Public Member Functions
	BatchAAResults (AAResults &AAR)
	BatchAAResults (AAResults &AAR, CaptureInfo *CI)
AliasResult	alias (const MemoryLocation &LocA, const MemoryLocation &LocB)
bool	pointsToConstantMemory (const MemoryLocation &Loc, bool OrLocal=false)
ModRefInfo	getModRefInfoMask (const MemoryLocation &Loc, bool IgnoreLocals=false)
ModRefInfo	getModRefInfo (const Instruction *I, const std::optional< MemoryLocation > &OptLoc)
ModRefInfo	getModRefInfo (const Instruction *I, const CallBase *Call2)
ModRefInfo	getArgModRefInfo (const CallBase *Call, unsigned ArgIdx)
MemoryEffects	getMemoryEffects (const CallBase *Call)
bool	isMustAlias (const MemoryLocation &LocA, const MemoryLocation &LocB)
bool	isMustAlias (const Value *V1, const Value *V2)
ModRefInfo	callCapturesBefore (const Instruction *I, const MemoryLocation &MemLoc, DominatorTree *DT)
void	enableCrossIterationMode ()
	Assume that values may come from different cycle iterations.
void	disableDominatorTree ()
	Disable the use of the dominator tree during alias analysis queries.

Detailed Description

This class is a wrapper over an AAResults, and it is intended to be used only when there are no IR changes inbetween queries.

BatchAAResults is reusing the same AAQueryInfo to preserve the state across queries, esentially making AA work in "batch mode". The internal state cannot be cleared, so to go "out-of-batch-mode", the user must either use AAResults, or create a new BatchAAResults.

Definition at line 630 of file AliasAnalysis.h.

Constructor & Destructor Documentation

BatchAAResults() [1/2]

llvm::BatchAAResults::BatchAAResults ( AAResults &  AAR )

inline

Definition at line 636 of file AliasAnalysis.h.

BatchAAResults() [2/2]

llvm::BatchAAResults::BatchAAResults ( AAResults &  AAR, CaptureInfo *  CI  )

inline

Definition at line 637 of file AliasAnalysis.h.

Member Function Documentation

alias()

AliasResult llvm::BatchAAResults::alias ( const MemoryLocation &  LocA, const MemoryLocation &  LocB  )

inline

Definition at line 639 of file AliasAnalysis.h.

References llvm::AAResults::alias().

Referenced by llvm::AliasSet::aliasesMemoryLocation(), canSkipClobberingStore(), llvm::MemoryDependenceResults::getSimplePointerDependencyFrom(), and isMustAlias().

callCapturesBefore()

ModRefInfo llvm::BatchAAResults::callCapturesBefore ( const Instruction *  I, const MemoryLocation &  MemLoc, DominatorTree *  DT  )

inline

Definition at line 670 of file AliasAnalysis.h.

References llvm::AAResults::callCapturesBefore(), and I.

disableDominatorTree()

void llvm::BatchAAResults::disableDominatorTree ( )

inline

Disable the use of the dominator tree during alias analysis queries.

Definition at line 682 of file AliasAnalysis.h.

References llvm::AAQueryInfo::UseDominatorTree.

Referenced by llvm::JumpThreadingPass::simplifyPartiallyRedundantLoad().

enableCrossIterationMode()

void llvm::BatchAAResults::enableCrossIterationMode ( )

inline

Assume that values may come from different cycle iterations.

Definition at line 677 of file AliasAnalysis.h.

References llvm::AAQueryInfo::MayBeCrossIteration.

getArgModRefInfo()

ModRefInfo llvm::BatchAAResults::getArgModRefInfo ( const CallBase *  Call, unsigned  ArgIdx  )

inline

Definition at line 656 of file AliasAnalysis.h.

References llvm::AAResults::getArgModRefInfo().

Referenced by llvm::AliasSetTracker::add().

getMemoryEffects()

MemoryEffects llvm::BatchAAResults::getMemoryEffects ( const CallBase *  Call )

inline

Definition at line 659 of file AliasAnalysis.h.

References llvm::AAResults::getMemoryEffects().

Referenced by llvm::AliasSetTracker::add().

getModRefInfo() [1/2]

ModRefInfo llvm::BatchAAResults::getModRefInfo ( const Instruction *  I, const CallBase *  Call2  )

inline

Definition at line 653 of file AliasAnalysis.h.

References llvm::AAResults::getModRefInfo(), and I.

getModRefInfo() [2/2]

ModRefInfo llvm::BatchAAResults::getModRefInfo ( const Instruction *  I, const std::optional< MemoryLocation > &  OptLoc  )

inline

Definition at line 649 of file AliasAnalysis.h.

References llvm::AAResults::getModRefInfo(), and I.

Referenced by accessedBetween(), llvm::AliasSet::aliasesMemoryLocation(), llvm::AliasSet::aliasesUnknownInst(), llvm::canSinkOrHoistInst(), canSkipClobberingStore(), llvm::FindAvailableLoadedValue(), llvm::findAvailablePtrLoadStore(), findDominatingValue(), llvm::MemoryDependenceResults::getSimplePointerDependencyFrom(), memoryIsNotModifiedBetween(), and usersDominator().

getModRefInfoMask()

ModRefInfo llvm::BatchAAResults::getModRefInfoMask ( const MemoryLocation &  Loc, bool  IgnoreLocals = false  )

inline

Definition at line 645 of file AliasAnalysis.h.

References llvm::AAResults::getModRefInfoMask().

Referenced by llvm::MemoryDependenceResults::getSimplePointerDependencyFrom().

isMustAlias() [1/2]

bool llvm::BatchAAResults::isMustAlias ( const MemoryLocation &  LocA, const MemoryLocation &  LocB  )

inline

Definition at line 662 of file AliasAnalysis.h.

References alias(), and llvm::AliasResult::MustAlias.

Referenced by llvm::MemoryDependenceResults::getSimplePointerDependencyFrom(), hasUndefContents(), and isMaskedStoreOverwrite().

isMustAlias() [2/2]

bool llvm::BatchAAResults::isMustAlias ( const Value *  V1, const Value *  V2  )

inline

Definition at line 665 of file AliasAnalysis.h.

References alias(), llvm::AliasResult::MustAlias, and llvm::LocationSize::precise().

pointsToConstantMemory()

bool llvm::BatchAAResults::pointsToConstantMemory ( const MemoryLocation &  Loc, bool  OrLocal = false  )

inline

Definition at line 642 of file AliasAnalysis.h.

References llvm::AAResults::getModRefInfoMask(), and llvm::isNoModRef().

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

• include/llvm/Analysis/AliasAnalysis.h