AliasAnalysis.h File Reference

#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Analysis/MemoryLocation.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/PassManager.h"
#include "llvm/Pass.h"
#include "llvm/Support/ModRef.h"
#include <cstdint>
#include <functional>
#include <memory>
#include <optional>
#include <vector>

Go to the source code of this file.

Classes
class	llvm::AliasResult
	The possible results of an alias query. More...
struct	llvm::CaptureInfo
	Virtual base class for providers of capture information. More...
class	llvm::SimpleCaptureInfo
	Context-free CaptureInfo provider, which computes and caches whether an object is captured in the function at all, but does not distinguish whether it was captured before or after the context instruction. More...
class	llvm::EarliestEscapeInfo
	Context-sensitive CaptureInfo provider, which computes and caches the earliest common dominator closure of all captures. More...
struct	llvm::AACacheLoc
	Cache key for BasicAA results. More...
struct	llvm::DenseMapInfo< AACacheLoc >
class	llvm::AAQueryInfo
	This class stores info we want to provide to or retain within an alias query. More...
struct	llvm::AAQueryInfo::CacheEntry
class	llvm::SimpleAAQueryInfo
	AAQueryInfo that uses SimpleCaptureInfo. More...
class	llvm::AAResults
class	llvm::BatchAAResults
	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...
class	llvm::AAResults::Concept
	A private abstract base class describing the concept of an individual alias analysis implementation. More...
class	llvm::AAResultBase
	A base class to help implement the function alias analysis results concept. More...
class	llvm::AAManager
	A manager for alias analyses. More...
class	llvm::AAResultsWrapperPass
	A wrapper pass to provide the legacy pass manager access to a suitably prepared AAResults object. More...
struct	llvm::ExternalAAWrapperPass
	A wrapper pass for external alias analyses. More...

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Typedefs
using	llvm::AliasAnalysis = AAResults
	Temporary typedef for legacy code that uses a generic AliasAnalysis pointer or reference.

Functions
raw_ostream &	llvm::operator<< (raw_ostream &OS, AliasResult AR)
	<< operator for AliasResult.
bool	llvm::isNoAliasCall (const Value *V)
	Return true if this pointer is returned by a noalias function.
bool	llvm::isIdentifiedObject (const Value *V)
	Return true if this pointer refers to a distinct and identifiable object.
bool	llvm::isIdentifiedFunctionLocal (const Value *V)
	Return true if V is umabigously identified at the function-level.
bool	llvm::isEscapeSource (const Value *V)
	Returns true if the pointer is one which would have been considered an escape by isNonEscapingLocalObject.
bool	llvm::isNotVisibleOnUnwind (const Value *Object, bool &RequiresNoCaptureBeforeUnwind)
	Return true if Object memory is not visible after an unwind, in the sense that program semantics cannot depend on Object containing any particular value on unwind.
bool	llvm::isWritableObject (const Value *Object, bool &ExplicitlyDereferenceableOnly)
	Return true if the Object is writable, in the sense that any location based on this pointer that can be loaded can also be stored to without trapping.
ImmutablePass *	llvm::createExternalAAWrapperPass (std::function< void(Pass &, Function &, AAResults &)> Callback)
	A wrapper pass around a callback which can be used to populate the AAResults in the AAResultsWrapperPass from an external AA.