An abstract interface for all memory location attributes (readnone/argmemonly/inaccessiblememonly/inaccessibleorargmemonly). More...

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

Inheritance diagram for llvm::AAMemoryLocation:

[legend]

Public Types
enum	{ ALL_LOCATIONS = 0 , NO_LOCAL_MEM = 1 << 0 , NO_CONST_MEM = 1 << 1 , NO_GLOBAL_INTERNAL_MEM = 1 << 2 , NO_GLOBAL_EXTERNAL_MEM = 1 << 3 , NO_GLOBAL_MEM = NO_GLOBAL_INTERNAL_MEM \| NO_GLOBAL_EXTERNAL_MEM , NO_ARGUMENT_MEM = 1 << 4 , NO_INACCESSIBLE_MEM = 1 << 5 , NO_MALLOCED_MEM = 1 << 6 , NO_UNKOWN_MEM = 1 << 7 , NO_LOCATIONS , VALID_STATE = NO_LOCATIONS + 1 , BEST_STATE = NO_LOCATIONS \| VALID_STATE }
	Encoding of different locations that could be accessed by a memory access. More...

enum	AccessKind { NONE = 0 , READ = 1 << 0 , WRITE = 1 << 1 , READ_WRITE = READ \| WRITE }
	Simple enum to distinguish read/write/read-write accesses. More...

using	MemoryLocationsKind = StateType::base_t

Public Types inherited from llvm::StateWrapper< BitIntegerState< uint32_t, 511 >, AbstractAttribute >
using	StateType = BitIntegerState< uint32_t, 511 >
	Provide static access to the type of the state.

Public Types inherited from llvm::AbstractAttribute
using	StateType = AbstractState

Public Types inherited from llvm::IRPosition
enum	Kind : char { IRP_INVALID , IRP_FLOAT , IRP_RETURNED , IRP_CALL_SITE_RETURNED , IRP_FUNCTION , IRP_CALL_SITE , IRP_ARGUMENT , IRP_CALL_SITE_ARGUMENT }
	The positions we distinguish in the IR. More...

using	CallBaseContext = CallBase

Public Types inherited from llvm::AADepGraphNode
using	DepTy = PointerIntPair< AADepGraphNode *, 1 >

using	DepSetTy = SmallSetVector< DepTy, 2 >

using	iterator = mapped_iterator< DepSetTy::iterator, decltype(&DepGetVal)>

using	aaiterator = mapped_iterator< DepSetTy::iterator, decltype(&DepGetValAA)>

Public Types inherited from llvm::BitIntegerState< uint32_t, 511 >
using	super = IntegerStateBase< uint32_t, BestState, 0 >

using	base_t = uint32_t

Public Types inherited from llvm::IntegerStateBase< base_ty, BestState, WorstState >
using	base_t = base_ty

Public Member Functions
	AAMemoryLocation (const IRPosition &IRP, Attributor &A)

bool	isKnownReadNone () const
	Return true if we know that the associated functions has no observable accesses.

bool	isAssumedReadNone () const
	Return true if we assume that the associated functions has no observable accesses.

bool	isKnowStackOnly () const
	Return true if we know that the associated functions has at most local/stack accesses.

bool	isAssumedStackOnly () const
	Return true if we assume that the associated functions has at most local/stack accesses.

bool	isKnownInaccessibleMemOnly () const
	Return true if we know that the underlying value will only access inaccesible memory only (see Attribute::InaccessibleMemOnly).

bool	isAssumedInaccessibleMemOnly () const
	Return true if we assume that the underlying value will only access inaccesible memory only (see Attribute::InaccessibleMemOnly).

bool	isKnownArgMemOnly () const
	Return true if we know that the underlying value will only access argument pointees (see Attribute::ArgMemOnly).

bool	isAssumedArgMemOnly () const
	Return true if we assume that the underlying value will only access argument pointees (see Attribute::ArgMemOnly).

bool	isKnownInaccessibleOrArgMemOnly () const
	Return true if we know that the underlying value will only access inaccesible memory or argument pointees (see Attribute::InaccessibleOrArgMemOnly).

bool	isAssumedInaccessibleOrArgMemOnly () const
	Return true if we assume that the underlying value will only access inaccesible memory or argument pointees (see Attribute::InaccessibleOrArgMemOnly).

bool	mayAccessArgMem () const
	Return true if the underlying value may access memory through arguement pointers of the associated function, if any.

bool	isAssumedSpecifiedMemOnly (MemoryLocationsKind MLK) const
	Return true if only the memory locations specififed by `MLK` are assumed to be accessed by the associated function.

MemoryLocationsKind	getAssumedNotAccessedLocation () const
	Return the locations that are assumed to be not accessed by the associated function, if any.

virtual bool	checkForAllAccessesToMemoryKind (function_ref< bool(const Instruction , const Value , AccessKind, MemoryLocationsKind)> Pred, MemoryLocationsKind MLK) const =0
	Check `Pred` on all accesses to the memory kinds specified by `MLK`.

const std::string	getAsStr (Attributor *A) const override
	See AbstractState::getAsStr(Attributor).

const std::string	getName () const override
	See AbstractAttribute::getName()

const char *	getIdAddr () const override
	See AbstractAttribute::getIdAddr()

Public Member Functions inherited from llvm::IRAttribute< Attribute::None, StateWrapper< BitIntegerState< uint32_t, 511 >, AbstractAttribute >, AAMemoryLocation >
	IRAttribute (const IRPosition &IRP)

ChangeStatus	manifest (Attributor &A) override
	See AbstractAttribute::manifest(...).

Attribute::AttrKind	getAttrKind () const
	Return the kind that identifies the abstract attribute implementation.

virtual void	getDeducedAttributes (Attributor &A, LLVMContext &Ctx, SmallVectorImpl< Attribute > &Attrs) const
	Return the deduced attributes in `Attrs`.

Public Member Functions inherited from llvm::StateWrapper< BitIntegerState< uint32_t, 511 >, AbstractAttribute >
	StateWrapper (const IRPosition &IRP, Ts... Args)

StateType &	getState () override
	See AbstractAttribute::getState(...).

const StateType &	getState () const override
	See AbstractAttribute::getState(...).

Public Member Functions inherited from llvm::AbstractAttribute
	AbstractAttribute (const IRPosition &IRP)

virtual	~AbstractAttribute ()=default
	Virtual destructor.

virtual void	initialize (Attributor &A)
	Initialize the state with the information in the Attributor `A`.

virtual bool	isQueryAA () const
	A query AA is always scheduled as long as we do updates because it does lazy computation that cannot be determined to be done from the outside.

virtual StateType &	getState ()=0
	Return the internal abstract state for inspection.

virtual const StateType &	getState () const =0

const IRPosition &	getIRPosition () const
	Return an IR position, see struct IRPosition.

IRPosition &	getIRPosition ()

void	print (raw_ostream &OS) const
	Helper functions, for debug purposes only.

void	print (Attributor *, raw_ostream &OS) const override

virtual void	printWithDeps (raw_ostream &OS) const

void	dump () const

virtual const std::string	getAsStr (Attributor *A) const =0
	This function should return the "summarized" assumed state as string.

virtual const std::string	getName () const =0
	This function should return the name of the AbstractAttribute.

virtual const char *	getIdAddr () const =0
	This function should return the address of the ID of the AbstractAttribute.

Public Member Functions inherited from llvm::IRPosition
	IRPosition ()
	Default constructor available to create invalid positions implicitly.

bool	operator== (const IRPosition &RHS) const

bool	operator!= (const IRPosition &RHS) const

Value &	getAnchorValue () const
	Return the value this abstract attribute is anchored with.

Function *	getAssociatedFunction () const
	Return the associated function, if any.

Argument *	getAssociatedArgument () const
	Return the associated argument, if any.

bool	isFnInterfaceKind () const
	Return true if the position refers to a function interface, that is the function scope, the function return, or an argument.

bool	isFunctionScope () const
	Return true if this is a function or call site position.

Function *	getAnchorScope () const
	Return the Function surrounding the anchor value.

Instruction *	getCtxI () const
	Return the context instruction, if any.

Value &	getAssociatedValue () const
	Return the value this abstract attribute is associated with.

Type *	getAssociatedType () const
	Return the type this abstract attribute is associated with.

int	getCalleeArgNo () const
	Return the callee argument number of the associated value if it is an argument or call site argument, otherwise a negative value.

int	getCallSiteArgNo () const
	Return the call site argument number of the associated value if it is an argument or call site argument, otherwise a negative value.

unsigned	getAttrIdx () const
	Return the index in the attribute list for this position.

Value *	getAttrListAnchor () const
	Return the value attributes are attached to.

AttributeList	getAttrList () const
	Return the attributes associated with this function or call site scope.

void	setAttrList (const AttributeList &AttrList) const
	Update the attributes associated with this function or call site scope.

unsigned	getNumArgs () const
	Return the number of arguments associated with this function or call site scope.

Value *	getArg (unsigned ArgNo) const
	Return theargument `ArgNo` associated with this function or call site scope.

Kind	getPositionKind () const
	Return the associated position kind.

bool	isAnyCallSitePosition () const

bool	isArgumentPosition () const
	Return true if the position is an argument or call site argument.

IRPosition	stripCallBaseContext () const
	Return the same position without the call base context.

const CallBaseContext *	getCallBaseContext () const
	Get the call base context from the position.

bool	hasCallBaseContext () const
	Check if the position has any call base context.

	operator void * () const
	}

Public Member Functions inherited from llvm::AADepGraphNode
virtual	~AADepGraphNode ()=default

aaiterator	begin ()

aaiterator	end ()

iterator	child_begin ()

iterator	child_end ()

void	print (raw_ostream &OS) const

virtual void	print (Attributor *, raw_ostream &OS) const

DepSetTy &	getDeps ()

Public Member Functions inherited from llvm::BitIntegerState< uint32_t, 511 >
	BitIntegerState ()=default

	BitIntegerState (base_t Assumed)

bool	isKnown (base_t BitsEncoding=BestState) const
	Return true if the bits set in `BitsEncoding` are "known bits".

bool	isAssumed (base_t BitsEncoding=BestState) const
	Return true if the bits set in `BitsEncoding` are "assumed bits".

BitIntegerState &	addKnownBits (base_t Bits)
	Add the bits in `BitsEncoding` to the "known bits".

BitIntegerState &	removeAssumedBits (base_t BitsEncoding)
	Remove the bits in `BitsEncoding` from the "assumed bits" if not known.

BitIntegerState &	removeKnownBits (base_t BitsEncoding)
	Remove the bits in `BitsEncoding` from the "known bits".

BitIntegerState &	intersectAssumedBits (base_t BitsEncoding)
	Keep only "assumed bits" also set in `BitsEncoding` but all known ones.

Public Member Functions inherited from llvm::IntegerStateBase< base_ty, BestState, WorstState >
	IntegerStateBase ()=default

	IntegerStateBase (base_t Assumed)

bool	isValidState () const override
	See AbstractState::isValidState() NOTE: For now we simply pretend that the worst possible state is invalid.

bool	isAtFixpoint () const override
	See AbstractState::isAtFixpoint()

ChangeStatus	indicateOptimisticFixpoint () override
	See AbstractState::indicateOptimisticFixpoint(...)

ChangeStatus	indicatePessimisticFixpoint () override
	See AbstractState::indicatePessimisticFixpoint(...)

base_t	getKnown () const
	Return the known state encoding.

base_t	getAssumed () const
	Return the assumed state encoding.

bool	operator== (const IntegerStateBase< base_t, BestState, WorstState > &R) const
	Equality for IntegerStateBase.

bool	operator!= (const IntegerStateBase< base_t, BestState, WorstState > &R) const
	Inequality for IntegerStateBase.

void	operator^= (const IntegerStateBase< base_t, BestState, WorstState > &R)
	"Clamp" this state with `R`.

void	operator+= (const IntegerStateBase< base_t, BestState, WorstState > &R)
	"Clamp" this state with `R`.

void	operator\|= (const IntegerStateBase< base_t, BestState, WorstState > &R)

void	operator&= (const IntegerStateBase< base_t, BestState, WorstState > &R)

Public Member Functions inherited from llvm::AbstractState
virtual	~AbstractState ()=default

virtual bool	isValidState () const =0
	Return if this abstract state is in a valid state.

virtual bool	isAtFixpoint () const =0
	Return if this abstract state is fixed, thus does not need to be updated if information changes as it cannot change itself.

virtual ChangeStatus	indicateOptimisticFixpoint ()=0
	Indicate that the abstract state should converge to the optimistic state.

virtual ChangeStatus	indicatePessimisticFixpoint ()=0
	Indicate that the abstract state should converge to the pessimistic state.

Static Public Member Functions
static bool	requiresCalleeForCallBase ()
	See AbstractAttribute::requiresCalleeForCallBase.

static bool	hasTrivialInitializer ()
	See AbstractAttribute::hasTrivialInitializer.

static bool	isValidIRPositionForInit (Attributor &A, const IRPosition &IRP)
	See AbstractAttribute::isValidIRPositionForInit.

static MemoryLocationsKind	inverseLocation (MemoryLocationsKind Loc, bool AndLocalMem, bool AndConstMem)
	Return the inverse of location `Loc`, thus for NO_XXX the return describes ONLY_XXX.

static std::string	getMemoryLocationsAsStr (MemoryLocationsKind MLK)
	Return the locations encoded by `MLK` as a readable string.

static AAMemoryLocation &	createForPosition (const IRPosition &IRP, Attributor &A)
	Create an abstract attribute view for the position `IRP`.

static bool	classof (const AbstractAttribute *AA)
	This function should return true if the type of the `AA` is AAMemoryLocation.

Static Public Member Functions inherited from llvm::IRAttribute< Attribute::None, StateWrapper< BitIntegerState< uint32_t, 511 >, AbstractAttribute >, AAMemoryLocation >
static bool	hasTrivialInitializer ()
	Most boolean IRAttribute AAs don't do anything non-trivial in their initializers while non-boolean ones often do.

static bool	isImpliedByUndef ()
	Return true if the IR attribute(s) associated with this AA are implied for an undef value.

static bool	isImpliedByPoison ()
	Return true if the IR attribute(s) associated with this AA are implied for an poison value.

static bool	isImpliedByIR (Attributor &A, const IRPosition &IRP, Attribute::AttrKind ImpliedAttributeKind=AK, bool IgnoreSubsumingPositions=false)

Static Public Member Functions inherited from llvm::AbstractAttribute
static bool	classof (const AADepGraphNode *DGN)
	This function is used to identify if an `DGN` is of type AbstractAttribute so that the dyn_cast and cast can use such information to cast an AADepGraphNode to an AbstractAttribute.

static bool	hasTrivialInitializer ()
	Return false if this AA does anything non-trivial (hence not done by default) in its initializer.

static bool	requiresCalleeForCallBase ()
	Return true if this AA requires a "callee" (or an associted function) for a call site positon.

static bool	requiresNonAsmForCallBase ()
	Return true if this AA requires non-asm "callee" for a call site positon.

static bool	requiresCallersForArgOrFunction ()
	Return true if this AA requires all callees for an argument or function positon.

static bool	isValidIRPositionForInit (Attributor &A, const IRPosition &IRP)
	Return false if an AA should not be created for `IRP`.

static bool	isValidIRPositionForUpdate (Attributor &A, const IRPosition &IRP)
	Return false if an AA should not be updated for `IRP`.

Static Public Member Functions inherited from llvm::IRPosition
static const IRPosition	value (const Value &V, const CallBaseContext *CBContext=nullptr)
	Create a position describing the value of `V`.

static const IRPosition	inst (const Instruction &I, const CallBaseContext *CBContext=nullptr)
	Create a position describing the instruction `I`.

static const IRPosition	function (const Function &F, const CallBaseContext *CBContext=nullptr)
	Create a position describing the function scope of `F`.

static const IRPosition	returned (const Function &F, const CallBaseContext *CBContext=nullptr)
	Create a position describing the returned value of `F`.

static const IRPosition	argument (const Argument &Arg, const CallBaseContext *CBContext=nullptr)
	Create a position describing the argument `Arg`.

static const IRPosition	callsite_function (const CallBase &CB)
	Create a position describing the function scope of `CB`.

static const IRPosition	callsite_returned (const CallBase &CB)
	Create a position describing the returned value of `CB`.

static const IRPosition	callsite_argument (const CallBase &CB, unsigned ArgNo)
	Create a position describing the argument of `CB` at position `ArgNo`.

static const IRPosition	callsite_argument (AbstractCallSite ACS, unsigned ArgNo)
	Create a position describing the argument of `ACS` at position `ArgNo`.

static const IRPosition	function_scope (const IRPosition &IRP, const CallBaseContext *CBContext=nullptr)
	Create a position with function scope matching the "context" of `IRP`.

Static Public Member Functions inherited from llvm::IntegerStateBase< base_ty, BestState, WorstState >
static constexpr base_t	getBestState ()
	Return the best possible representable state.

static constexpr base_t	getBestState (const IntegerStateBase &)

static constexpr base_t	getWorstState ()
	Return the worst possible representable state.

static constexpr base_t	getWorstState (const IntegerStateBase &)

Static Public Attributes
static const char	ID = 0
	Unique ID (due to the unique address)

Static Public Attributes inherited from llvm::IRAttribute< Attribute::None, StateWrapper< BitIntegerState< uint32_t, 511 >, AbstractAttribute >, AAMemoryLocation >
static constexpr Attribute::AttrKind	IRAttributeKind
	Compile time access to the IR attribute kind.

Static Public Attributes inherited from llvm::AbstractAttribute
static constexpr Attribute::AttrKind	IRAttributeKind = Attribute::None
	Compile time access to the IR attribute kind.

Static Public Attributes inherited from llvm::IRPosition
static const IRPosition	EmptyKey
	Special DenseMap key values.

static const IRPosition	TombstoneKey

Additional Inherited Members
Protected Member Functions inherited from llvm::AbstractAttribute
ChangeStatus	update (Attributor &A)
	Hook for the Attributor to trigger an update of the internal state.

virtual ChangeStatus	manifest (Attributor &A)
	Hook for the Attributor to trigger the manifestation of the information represented by the abstract attribute in the LLVM-IR.

virtual void	trackStatistics () const =0
	Hook to enable custom statistic tracking, called after manifest that resulted in a change if statistics are enabled.

virtual ChangeStatus	updateImpl (Attributor &A)=0
	The actual update/transfer function which has to be implemented by the derived classes.

Protected Member Functions inherited from llvm::AADepGraphNode
	operator AbstractAttribute * ()

Protected Member Functions inherited from llvm::IntegerStateBase< base_ty, BestState, WorstState >
virtual void	handleNewAssumedValue (base_t Value)=0
	Handle a new assumed value `Value`. Subtype dependent.

virtual void	handleNewKnownValue (base_t Value)=0
	Handle a new known value `Value`. Subtype dependent.

virtual void	joinOR (base_t AssumedValue, base_t KnownValue)=0
	Handle a value `Value`. Subtype dependent.

virtual void	joinAND (base_t AssumedValue, base_t KnownValue)=0
	Handle a new assumed value `Value`. Subtype dependent.

Static Protected Member Functions inherited from llvm::AADepGraphNode
static AADepGraphNode *	DepGetVal (const DepTy &DT)

static AbstractAttribute *	DepGetValAA (const DepTy &DT)

Protected Attributes inherited from llvm::AADepGraphNode
DepSetTy	Deps
	Set of dependency graph nodes which should be updated if this one is updated.

Protected Attributes inherited from llvm::IntegerStateBase< base_ty, BestState, WorstState >
base_t	Known = getWorstState()
	The known state encoding in an integer of type base_t.

base_t	Assumed = getBestState()
	The assumed state encoding in an integer of type base_t.

Detailed Description

An abstract interface for all memory location attributes (readnone/argmemonly/inaccessiblememonly/inaccessibleorargmemonly).

Definition at line 4693 of file Attributor.h.

Member Typedef Documentation

◆ MemoryLocationsKind

using llvm::AAMemoryLocation::MemoryLocationsKind = StateType::base_t

Definition at line 4698 of file Attributor.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

Encoding of different locations that could be accessed by a memory access.

Enumerator
ALL_LOCATIONS
NO_LOCAL_MEM
NO_CONST_MEM
NO_GLOBAL_INTERNAL_MEM
NO_GLOBAL_EXTERNAL_MEM
NO_GLOBAL_MEM
NO_ARGUMENT_MEM
NO_INACCESSIBLE_MEM
NO_MALLOCED_MEM
NO_UNKOWN_MEM
NO_LOCATIONS
VALID_STATE
BEST_STATE

Definition at line 4718 of file Attributor.h.

◆ AccessKind

enum llvm::AAMemoryLocation::AccessKind

Simple enum to distinguish read/write/read-write accesses.

Enumerator
NONE
READ
WRITE
READ_WRITE

Definition at line 4833 of file Attributor.h.

Constructor & Destructor Documentation

◆ AAMemoryLocation()

llvm::AAMemoryLocation::AAMemoryLocation	(	const IRPosition &	IRP,
		Attributor &	A
	)

inline

Definition at line 4700 of file Attributor.h.

Member Function Documentation

◆ checkForAllAccessesToMemoryKind()

virtual bool llvm::AAMemoryLocation::checkForAllAccessesToMemoryKind	(	function_ref< bool(const Instruction , const Value , AccessKind, MemoryLocationsKind)>	Pred,
		MemoryLocationsKind	MLK
	)		const

pure virtual

Check Pred on all accesses to the memory kinds specified by MLK.

This method will evaluate Pred on all accesses (access instruction + underlying accessed memory pointer) and it will return true if Pred holds every time.

◆ classof()

static bool llvm::AAMemoryLocation::classof ( const AbstractAttribute * AA )

inlinestatic

This function should return true if the type of the AA is AAMemoryLocation.

Definition at line 4868 of file Attributor.h.

References llvm::AbstractAttribute::getIdAddr().

◆ createForPosition()

static AAMemoryLocation & llvm::AAMemoryLocation::createForPosition	(	const IRPosition &	IRP,
		Attributor &	A
	)

static

Create an abstract attribute view for the position IRP.

◆ getAsStr()

const std::string llvm::AAMemoryLocation::getAsStr ( Attributor * A ) const

inlineoverridevirtual

See AbstractState::getAsStr(Attributor).

Implements llvm::AbstractAttribute.

Definition at line 4856 of file Attributor.h.

References getAssumedNotAccessedLocation(), and getMemoryLocationsAsStr().

◆ getAssumedNotAccessedLocation()

MemoryLocationsKind llvm::AAMemoryLocation::getAssumedNotAccessedLocation ( ) const

inline

Return the locations that are assumed to be not accessed by the associated function, if any.

Definition at line 4814 of file Attributor.h.

References llvm::IntegerStateBase< base_ty, BestState, WorstState >::getAssumed().

Referenced by getAsStr().

◆ getIdAddr()

const char * llvm::AAMemoryLocation::getIdAddr ( ) const

inlineoverridevirtual

See AbstractAttribute::getIdAddr()

Implements llvm::AbstractAttribute.

Definition at line 4864 of file Attributor.h.

References ID.

◆ getMemoryLocationsAsStr()

std::string AAMemoryLocation::getMemoryLocationsAsStr ( AAMemoryLocation::MemoryLocationsKind MLK )

static

Return the locations encoded by MLK as a readable string.

-----------------— Memory Locations Attributes ------------------------— Includes read-none, argmemonly, inaccessiblememonly,

inaccessiblememorargmemonly

Definition at line 8286 of file AttributorAttributes.cpp.

References NO_ARGUMENT_MEM, NO_CONST_MEM, NO_GLOBAL_EXTERNAL_MEM, NO_GLOBAL_INTERNAL_MEM, NO_INACCESSIBLE_MEM, NO_LOCAL_MEM, NO_LOCATIONS, NO_MALLOCED_MEM, and NO_UNKOWN_MEM.

Referenced by getAsStr().

◆ getName()

const std::string llvm::AAMemoryLocation::getName ( ) const

inlineoverridevirtual

See AbstractAttribute::getName()

Implements llvm::AbstractAttribute.

Definition at line 4861 of file Attributor.h.

◆ hasTrivialInitializer()

static bool llvm::AAMemoryLocation::hasTrivialInitializer ( )

inlinestatic

See AbstractAttribute::hasTrivialInitializer.

Definition at line 4706 of file Attributor.h.

◆ inverseLocation()

static MemoryLocationsKind llvm::AAMemoryLocation::inverseLocation	(	MemoryLocationsKind	Loc,
		bool	AndLocalMem,
		bool	AndConstMem
	)

inlinestatic

Return the inverse of location Loc, thus for NO_XXX the return describes ONLY_XXX.

The flags AndLocalMem and AndConstMem determine if local (=stack) and constant memory are allowed as well. Most of the time we do want them to be included, e.g., argmemonly allows accesses via argument pointers or local or constant memory accesses.

Definition at line 4824 of file Attributor.h.

References NO_CONST_MEM, NO_LOCAL_MEM, and NO_LOCATIONS.

Referenced by isAssumedArgMemOnly(), isAssumedInaccessibleMemOnly(), isAssumedInaccessibleOrArgMemOnly(), isAssumedStackOnly(), isKnownArgMemOnly(), isKnownInaccessibleMemOnly(), isKnownInaccessibleOrArgMemOnly(), and isKnowStackOnly().

◆ isAssumedArgMemOnly()

bool llvm::AAMemoryLocation::isAssumedArgMemOnly ( ) const

inline

Return true if we assume that the underlying value will only access argument pointees (see Attribute::ArgMemOnly).

Definition at line 4782 of file Attributor.h.

References inverseLocation(), llvm::BitIntegerState< uint32_t, 511 >::isAssumed(), and NO_ARGUMENT_MEM.

◆ isAssumedInaccessibleMemOnly()

bool llvm::AAMemoryLocation::isAssumedInaccessibleMemOnly ( ) const

inline

Return true if we assume that the underlying value will only access inaccesible memory only (see Attribute::InaccessibleMemOnly).

Definition at line 4770 of file Attributor.h.

References inverseLocation(), llvm::BitIntegerState< uint32_t, 511 >::isAssumed(), and NO_INACCESSIBLE_MEM.

◆ isAssumedInaccessibleOrArgMemOnly()

bool llvm::AAMemoryLocation::isAssumedInaccessibleOrArgMemOnly ( ) const

inline

Return true if we assume that the underlying value will only access inaccesible memory or argument pointees (see Attribute::InaccessibleOrArgMemOnly).

Definition at line 4797 of file Attributor.h.

References inverseLocation(), llvm::BitIntegerState< uint32_t, 511 >::isAssumed(), NO_ARGUMENT_MEM, and NO_INACCESSIBLE_MEM.

◆ isAssumedReadNone()

bool llvm::AAMemoryLocation::isAssumedReadNone ( ) const

inline

Return true if we assume that the associated functions has no observable accesses.

Definition at line 4746 of file Attributor.h.

References llvm::BitIntegerState< uint32_t, 511 >::isAssumed(), isAssumedStackOnly(), and NO_LOCATIONS.

◆ isAssumedSpecifiedMemOnly()

bool llvm::AAMemoryLocation::isAssumedSpecifiedMemOnly ( MemoryLocationsKind MLK ) const

inline

Return true if only the memory locations specififed by MLK are assumed to be accessed by the associated function.

Definition at line 4808 of file Attributor.h.

References llvm::BitIntegerState< uint32_t, 511 >::isAssumed().

◆ isAssumedStackOnly()

bool llvm::AAMemoryLocation::isAssumedStackOnly ( ) const

inline

Return true if we assume that the associated functions has at most local/stack accesses.

Definition at line 4758 of file Attributor.h.

References inverseLocation(), llvm::BitIntegerState< uint32_t, 511 >::isAssumed(), and NO_LOCAL_MEM.

Referenced by isAssumedReadNone().

◆ isKnownArgMemOnly()

bool llvm::AAMemoryLocation::isKnownArgMemOnly ( ) const

inline

Return true if we know that the underlying value will only access argument pointees (see Attribute::ArgMemOnly).

Definition at line 4776 of file Attributor.h.

References inverseLocation(), llvm::BitIntegerState< uint32_t, 511 >::isKnown(), and NO_ARGUMENT_MEM.

◆ isKnownInaccessibleMemOnly()

bool llvm::AAMemoryLocation::isKnownInaccessibleMemOnly ( ) const

inline

Return true if we know that the underlying value will only access inaccesible memory only (see Attribute::InaccessibleMemOnly).

Definition at line 4764 of file Attributor.h.

References inverseLocation(), llvm::BitIntegerState< uint32_t, 511 >::isKnown(), and NO_INACCESSIBLE_MEM.

◆ isKnownInaccessibleOrArgMemOnly()

bool llvm::AAMemoryLocation::isKnownInaccessibleOrArgMemOnly ( ) const

inline

Return true if we know that the underlying value will only access inaccesible memory or argument pointees (see Attribute::InaccessibleOrArgMemOnly).

Definition at line 4789 of file Attributor.h.

References inverseLocation(), llvm::BitIntegerState< uint32_t, 511 >::isKnown(), NO_ARGUMENT_MEM, and NO_INACCESSIBLE_MEM.

◆ isKnownReadNone()

bool llvm::AAMemoryLocation::isKnownReadNone ( ) const

inline

Return true if we know that the associated functions has no observable accesses.

Definition at line 4742 of file Attributor.h.

References llvm::BitIntegerState< uint32_t, 511 >::isKnown(), and NO_LOCATIONS.

◆ isKnowStackOnly()

bool llvm::AAMemoryLocation::isKnowStackOnly ( ) const

inline

Return true if we know that the associated functions has at most local/stack accesses.

Definition at line 4752 of file Attributor.h.

References inverseLocation(), llvm::BitIntegerState< uint32_t, 511 >::isKnown(), and NO_LOCAL_MEM.

◆ isValidIRPositionForInit()

static bool llvm::AAMemoryLocation::isValidIRPositionForInit	(	Attributor &	A,
		const IRPosition &	IRP
	)

inlinestatic

See AbstractAttribute::isValidIRPositionForInit.

Definition at line 4709 of file Attributor.h.

References A, llvm::IRPosition::getAssociatedType(), llvm::IRPosition::isFunctionScope(), and llvm::Type::isPtrOrPtrVectorTy().

◆ mayAccessArgMem()

bool llvm::AAMemoryLocation::mayAccessArgMem ( ) const

inline

Return true if the underlying value may access memory through arguement pointers of the associated function, if any.

Definition at line 4804 of file Attributor.h.

References llvm::BitIntegerState< uint32_t, 511 >::isAssumed(), and NO_ARGUMENT_MEM.

◆ requiresCalleeForCallBase()

static bool llvm::AAMemoryLocation::requiresCalleeForCallBase ( )

inlinestatic

See AbstractAttribute::requiresCalleeForCallBase.

Definition at line 4703 of file Attributor.h.

Member Data Documentation

◆ ID

const char AAMemoryLocation::ID = 0

static

Unique ID (due to the unique address)

Definition at line 4873 of file Attributor.h.

Referenced by getIdAddr(), and runAttributorLightOnFunctions().

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

include/llvm/Transforms/IPO/Attributor.h
lib/Transforms/IPO/AttributorAttributes.cpp

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ MemoryLocationsKind

Member Enumeration Documentation

◆ anonymous enum

◆ AccessKind

Constructor & Destructor Documentation

◆ AAMemoryLocation()

Member Function Documentation

◆ checkForAllAccessesToMemoryKind()

◆ classof()

◆ createForPosition()

◆ getAsStr()

◆ getAssumedNotAccessedLocation()

◆ getIdAddr()

◆ getMemoryLocationsAsStr()

inaccessiblememorargmemonly

◆ getName()

◆ hasTrivialInitializer()

◆ inverseLocation()

◆ isAssumedArgMemOnly()

◆ isAssumedInaccessibleMemOnly()

◆ isAssumedInaccessibleOrArgMemOnly()

◆ isAssumedReadNone()

◆ isAssumedSpecifiedMemOnly()

◆ isAssumedStackOnly()

◆ isKnownArgMemOnly()

◆ isKnownInaccessibleMemOnly()

◆ isKnownInaccessibleOrArgMemOnly()

◆ isKnownReadNone()

◆ isKnowStackOnly()

◆ isValidIRPositionForInit()

◆ mayAccessArgMem()

◆ requiresCalleeForCallBase()

Member Data Documentation

◆ ID