llvm::AAPointerInfo::OffsetAndSize Struct Reference

Helper to represent an access offset and size, with logic to deal with uncertainty and check for overlapping accesses. More...

#include "llvm/Transforms/IPO/Attributor.h"

Inheritance diagram for llvm::AAPointerInfo::OffsetAndSize:

Collaboration diagram for llvm::AAPointerInfo::OffsetAndSize:

Public Types
using	BaseTy = std::pair< int64_t, int64_t >

Public Member Functions
	OffsetAndSize (int64_t Offset, int64_t Size)
	OffsetAndSize (const BaseTy &P)
int64_t	getOffset () const
int64_t	getSize () const
bool	offsetOrSizeAreUnknown () const
	Return true if offset or size are unknown. More...
bool	mayOverlap (const OffsetAndSize &OAS) const
	Return true if this offset and size pair might describe an address that overlaps with OAS. More...

Static Public Member Functions
static OffsetAndSize	getUnknown ()

Static Public Attributes
static constexpr int64_t	Unknown = 1 << 31
	Constant used to represent unknown offset or sizes. More...

Detailed Description

Helper to represent an access offset and size, with logic to deal with uncertainty and check for overlapping accesses.

Definition at line 4935 of file Attributor.h.

Member Typedef Documentation

BaseTy

using llvm::AAPointerInfo::OffsetAndSize::BaseTy = std::pair<int64_t, int64_t>

Definition at line 4936 of file Attributor.h.

Constructor & Destructor Documentation

OffsetAndSize() [1/2]

llvm::AAPointerInfo::OffsetAndSize::OffsetAndSize ( int64_t  Offset, int64_t  Size  )

inline

Definition at line 4937 of file Attributor.h.

Referenced by getUnknown().

OffsetAndSize() [2/2]

llvm::AAPointerInfo::OffsetAndSize::OffsetAndSize ( const BaseTy &  P )

inline

Definition at line 4938 of file Attributor.h.

Member Function Documentation

getOffset()

int64_t llvm::AAPointerInfo::OffsetAndSize::getOffset ( ) const

inline

Definition at line 4939 of file Attributor.h.

Referenced by mayOverlap(), and offsetOrSizeAreUnknown().

getSize()

int64_t llvm::AAPointerInfo::OffsetAndSize::getSize ( ) const

inline

Definition at line 4940 of file Attributor.h.

Referenced by AA::PointerInfo::State::forallInterferingAccesses(), mayOverlap(), and offsetOrSizeAreUnknown().

getUnknown()

static OffsetAndSize llvm::AAPointerInfo::OffsetAndSize::getUnknown ( )

inlinestatic

Definition at line 4941 of file Attributor.h.

References OffsetAndSize(), and Unknown.

mayOverlap()

bool llvm::AAPointerInfo::OffsetAndSize::mayOverlap ( const OffsetAndSize &  OAS ) const

inline

Return true if this offset and size pair might describe an address that overlaps with OAS.

Definition at line 4953 of file Attributor.h.

References getOffset(), getSize(), and offsetOrSizeAreUnknown().

Referenced by AA::PointerInfo::State::forallInterferingAccesses().

offsetOrSizeAreUnknown()

bool llvm::AAPointerInfo::OffsetAndSize::offsetOrSizeAreUnknown ( ) const

inline

Return true if offset or size are unknown.

Definition at line 4946 of file Attributor.h.

References getOffset(), getSize(), and Unknown.

Referenced by AA::PointerInfo::State::forallInterferingAccesses(), and mayOverlap().

Member Data Documentation

Unknown

constexpr int64_t llvm::AAPointerInfo::OffsetAndSize::Unknown = 1 << 31

staticconstexpr

Constant used to represent unknown offset or sizes.

Definition at line 4965 of file Attributor.h.

Referenced by getUnknown(), and offsetOrSizeAreUnknown().

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

• include/llvm/Transforms/IPO/Attributor.h