LLVM  14.0.0git
Public Member Functions | List of all members
AAMemoryBehaviorFunction Struct Referencefinal

An AA to represent the memory behavior function attributes. More...

Inheritance diagram for AAMemoryBehaviorFunction:
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Collaboration diagram for AAMemoryBehaviorFunction:
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Public Member Functions

 AAMemoryBehaviorFunction (const IRPosition &IRP, Attributor &A)
 
virtual ChangeStatus updateImpl (Attributor &A) override
 See AbstractAttribute::updateImpl(Attributor &A). More...
 
ChangeStatus manifest (Attributor &A) override
 See AbstractAttribute::manifest(...). More...
 
void trackStatistics () const override
 See AbstractAttribute::trackStatistics() More...
 
- Public Member Functions inherited from AAMemoryBehaviorImpl
 AAMemoryBehaviorImpl (const IRPosition &IRP, Attributor &A)
 
void initialize (Attributor &A) override
 See AbstractAttribute::initialize(...). More...
 
void getDeducedAttributes (LLVMContext &Ctx, SmallVectorImpl< Attribute > &Attrs) const override
 See AbstractAttribute::getDeducedAttributes(...). More...
 
const std::string getAsStr () const override
 See AbstractState::getAsStr(). More...
 
- Public Member Functions inherited from llvm::AAMemoryBehavior
 AAMemoryBehavior (const IRPosition &IRP, Attributor &A)
 
bool isKnownReadNone () const
 Return true if we know that the underlying value is not read or accessed in its respective scope. More...
 
bool isAssumedReadNone () const
 Return true if we assume that the underlying value is not read or accessed in its respective scope. More...
 
bool isKnownReadOnly () const
 Return true if we know that the underlying value is not accessed (=written) in its respective scope. More...
 
bool isAssumedReadOnly () const
 Return true if we assume that the underlying value is not accessed (=written) in its respective scope. More...
 
bool isKnownWriteOnly () const
 Return true if we know that the underlying value is not read in its respective scope. More...
 
bool isAssumedWriteOnly () const
 Return true if we assume that the underlying value is not read in its respective scope. More...
 
const std::string getName () const override
 See AbstractAttribute::getName() More...
 
const char * getIdAddr () const override
 See AbstractAttribute::getIdAddr() More...
 
- Public Member Functions inherited from llvm::IRAttribute< Attribute::ReadNone, StateWrapper< BitIntegerState< uint8_t, 3 >, AbstractAttribute > >
 IRAttribute (const IRPosition &IRP)
 
ChangeStatus manifest (Attributor &A) override
 See AbstractAttribute::manifest(...). More...
 
Attribute::AttrKind getAttrKind () const
 Return the kind that identifies the abstract attribute implementation. More...
 
- Public Member Functions inherited from llvm::StateWrapper< BitIntegerState< uint8_t, 3 >, AbstractAttribute >
 StateWrapper (const IRPosition &IRP, Ts... Args)
 
StateTypegetState () override
 See AbstractAttribute::getState(...). More...
 
const StateTypegetState () const override
 See AbstractAttribute::getState(...). More...
 
- Public Member Functions inherited from llvm::AbstractAttribute
 AbstractAttribute (const IRPosition &IRP)
 
virtual ~AbstractAttribute ()
 Virtual destructor. More...
 
virtual const StateTypegetState () const =0
 
const IRPositiongetIRPosition () const
 Return an IR position, see struct IRPosition. More...
 
IRPositiongetIRPosition ()
 
void print (raw_ostream &OS) const override
 Helper functions, for debug purposes only. More...
 
virtual void printWithDeps (raw_ostream &OS) const
 
void dump () const
 
- Public Member Functions inherited from llvm::IRPosition
 IRPosition ()
 Default constructor available to create invalid positions implicitly. More...
 
bool operator== (const IRPosition &RHS) const
 
bool operator!= (const IRPosition &RHS) const
 
ValuegetAnchorValue () const
 Return the value this abstract attribute is anchored with. More...
 
FunctiongetAssociatedFunction () const
 Return the associated function, if any. More...
 
ArgumentgetAssociatedArgument () const
 Return the associated argument, if any. More...
 
bool isFnInterfaceKind () const
 Return true if the position refers to a function interface, that is the function scope, the function return, or an argument. More...
 
FunctiongetAnchorScope () const
 Return the Function surrounding the anchor value. More...
 
InstructiongetCtxI () const
 Return the context instruction, if any. More...
 
ValuegetAssociatedValue () const
 Return the value this abstract attribute is associated with. More...
 
TypegetAssociatedType () const
 Return the type this abstract attribute is associated with. More...
 
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. More...
 
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. More...
 
unsigned getAttrIdx () const
 Return the index in the attribute list for this position. More...
 
Kind getPositionKind () const
 Return the associated position kind. More...
 
bool hasAttr (ArrayRef< Attribute::AttrKind > AKs, bool IgnoreSubsumingPositions=false, Attributor *A=nullptr) const
 TODO: Figure out if the attribute related helper functions should live here or somewhere else. More...
 
void getAttrs (ArrayRef< Attribute::AttrKind > AKs, SmallVectorImpl< Attribute > &Attrs, bool IgnoreSubsumingPositions=false, Attributor *A=nullptr) const
 Return the attributes of any kind in AKs existing in the IR at a position that will affect this one. More...
 
void removeAttrs (ArrayRef< Attribute::AttrKind > AKs) const
 Remove the attribute of kind AKs existing in the IR at this position. More...
 
bool isAnyCallSitePosition () const
 
bool isArgumentPosition () const
 Return true if the position is an argument or call site argument. More...
 
IRPosition stripCallBaseContext () const
 Return the same position without the call base context. More...
 
const CallBaseContextgetCallBaseContext () const
 Get the call base context from the position. More...
 
bool hasCallBaseContext () const
 Check if the position has any call base context. More...
 
 operator void * () const
 } More...
 
- Public Member Functions inherited from llvm::AADepGraphNode
virtual ~AADepGraphNode ()
 
aaiterator begin ()
 
aaiterator end ()
 
iterator child_begin ()
 
iterator child_end ()
 
TinyPtrVector< DepTy > & getDeps ()
 
- Public Member Functions inherited from llvm::BitIntegerState< uint8_t, 3 >
bool isKnown (base_t BitsEncoding) const
 Return true if the bits set in BitsEncoding are "known bits". More...
 
bool isAssumed (base_t BitsEncoding) const
 Return true if the bits set in BitsEncoding are "assumed bits". More...
 
BitIntegerStateaddKnownBits (base_t Bits)
 Add the bits in BitsEncoding to the "known bits". More...
 
BitIntegerStateremoveAssumedBits (base_t BitsEncoding)
 Remove the bits in BitsEncoding from the "assumed bits" if not known. More...
 
BitIntegerStateremoveKnownBits (base_t BitsEncoding)
 Remove the bits in BitsEncoding from the "known bits". More...
 
BitIntegerStateintersectAssumedBits (base_t BitsEncoding)
 Keep only "assumed bits" also set in BitsEncoding but all known ones. More...
 
- Public Member Functions inherited from llvm::IntegerStateBase< uint8_t, BestState, 0 >
 IntegerStateBase ()
 
 IntegerStateBase (base_t Assumed)
 
bool isValidState () const override
 See AbstractState::isValidState() NOTE: For now we simply pretend that the worst possible state is invalid. More...
 
bool isAtFixpoint () const override
 See AbstractState::isAtFixpoint() More...
 
ChangeStatus indicateOptimisticFixpoint () override
 See AbstractState::indicateOptimisticFixpoint(...) More...
 
ChangeStatus indicatePessimisticFixpoint () override
 See AbstractState::indicatePessimisticFixpoint(...) More...
 
base_t getKnown () const
 Return the known state encoding. More...
 
base_t getAssumed () const
 Return the assumed state encoding. More...
 
bool operator== (const IntegerStateBase< base_t, BestState, WorstState > &R) const
 Equality for IntegerStateBase. More...
 
bool operator!= (const IntegerStateBase< base_t, BestState, WorstState > &R) const
 Inequality for IntegerStateBase. More...
 
void operator^= (const IntegerStateBase< base_t, BestState, WorstState > &R)
 "Clamp" this state with R. More...
 
void operator+= (const IntegerStateBase< base_t, BestState, WorstState > &R)
 "Clamp" this state with R. More...
 
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 ()
 
virtual bool isValidState () const =0
 Return if this abstract state is in a valid state. More...
 
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. More...
 

Additional Inherited Members

- Public Types inherited from llvm::AAMemoryBehavior
enum  { NO_READS = 1 << 0, NO_WRITES = 1 << 1, NO_ACCESSES = NO_READS | NO_WRITES, BEST_STATE = NO_ACCESSES }
 State encoding bits. More...
 
- Public Types inherited from llvm::StateWrapper< BitIntegerState< uint8_t, 3 >, AbstractAttribute >
using StateType = BitIntegerState< uint8_t, 3 >
 Provide static access to the type of the state. More...
 
- 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 iterator = mapped_iterator< TinyPtrVector< DepTy >::iterator, decltype(&DepGetVal)>
 
using aaiterator = mapped_iterator< TinyPtrVector< DepTy >::iterator, decltype(&DepGetValAA)>
 
- Public Types inherited from llvm::BitIntegerState< uint8_t, 3 >
using base_t = uint8_t
 
- Public Types inherited from llvm::IntegerStateBase< uint8_t, BestState, 0 >
using base_t = uint8_t
 
- Static Public Member Functions inherited from AAMemoryBehaviorImpl
static void getKnownStateFromValue (const IRPosition &IRP, BitIntegerState &State, bool IgnoreSubsumingPositions=false)
 Return the memory behavior information encoded in the IR for IRP. More...
 
- Static Public Member Functions inherited from llvm::AAMemoryBehavior
static AAMemoryBehaviorcreateForPosition (const IRPosition &IRP, Attributor &A)
 Create an abstract attribute view for the position IRP. More...
 
static bool classof (const AbstractAttribute *AA)
 This function should return true if the type of the AA is AAMemoryBehavior. More...
 
- 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. More...
 
- 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. More...
 
static const IRPosition function (const Function &F, const CallBaseContext *CBContext=nullptr)
 Create a position describing the function scope of F. More...
 
static const IRPosition returned (const Function &F, const CallBaseContext *CBContext=nullptr)
 Create a position describing the returned value of F. More...
 
static const IRPosition argument (const Argument &Arg, const CallBaseContext *CBContext=nullptr)
 Create a position describing the argument Arg. More...
 
static const IRPosition callsite_function (const CallBase &CB)
 Create a position describing the function scope of CB. More...
 
static const IRPosition callsite_returned (const CallBase &CB)
 Create a position describing the returned value of CB. More...
 
static const IRPosition callsite_argument (const CallBase &CB, unsigned ArgNo)
 Create a position describing the argument of CB at position ArgNo. More...
 
static const IRPosition callsite_argument (AbstractCallSite ACS, unsigned ArgNo)
 Create a position describing the argument of ACS at position ArgNo. More...
 
static const IRPosition function_scope (const IRPosition &IRP, const CallBaseContext *CBContext=nullptr)
 Create a position with function scope matching the "context" of IRP. More...
 
- Static Public Member Functions inherited from llvm::IntegerStateBase< uint8_t, BestState, 0 >
static constexpr base_t getBestState ()
 Return the best possible representable state. More...
 
static constexpr base_t getBestState (const IntegerStateBase &)
 
static constexpr base_t getWorstState ()
 Return the worst possible representable state. More...
 
static constexpr base_t getWorstState (const IntegerStateBase &)
 
- Static Public Attributes inherited from AAMemoryBehaviorImpl
static const Attribute::AttrKind AttrKinds [3]
 The set of IR attributes AAMemoryBehavior deals with. More...
 
- Static Public Attributes inherited from llvm::AAMemoryBehavior
static const char ID = 0
 Unique ID (due to the unique address) More...
 
- Static Public Attributes inherited from llvm::IRPosition
static const IRPosition EmptyKey
 Special DenseMap key values. More...
 
static const IRPosition TombstoneKey
 
- Protected Member Functions inherited from llvm::AbstractAttribute
ChangeStatus update (Attributor &A)
 Hook for the Attributor to trigger an update of the internal state. More...
 
- Protected Member Functions inherited from llvm::AADepGraphNode
 operator AbstractAttribute * ()
 
- Static Protected Member Functions inherited from llvm::AADepGraphNode
static AADepGraphNodeDepGetVal (DepTy &DT)
 
static AbstractAttributeDepGetValAA (DepTy &DT)
 
- Protected Attributes inherited from llvm::AADepGraphNode
TinyPtrVector< DepTyDeps
 Set of dependency graph nodes which should be updated if this one is updated. More...
 
- Protected Attributes inherited from llvm::IntegerStateBase< uint8_t, BestState, 0 >
base_t Known
 The known state encoding in an integer of type base_t. More...
 
base_t Assumed
 The assumed state encoding in an integer of type base_t. More...
 

Detailed Description

An AA to represent the memory behavior function attributes.

Definition at line 7136 of file AttributorAttributes.cpp.

Constructor & Destructor Documentation

◆ AAMemoryBehaviorFunction()

AAMemoryBehaviorFunction::AAMemoryBehaviorFunction ( const IRPosition IRP,
Attributor A 
)
inline

Definition at line 7137 of file AttributorAttributes.cpp.

Member Function Documentation

◆ manifest()

ChangeStatus AAMemoryBehaviorFunction::manifest ( Attributor A)
inlineoverridevirtual

See AbstractAttribute::manifest(...).

Reimplemented from AAMemoryBehaviorImpl.

Definition at line 7144 of file AttributorAttributes.cpp.

References F, and AAMemoryBehaviorImpl::manifest().

◆ trackStatistics()

void AAMemoryBehaviorFunction::trackStatistics ( ) const
inlineoverridevirtual

See AbstractAttribute::trackStatistics()

Implements llvm::AbstractAttribute.

Definition at line 7155 of file AttributorAttributes.cpp.

References readnone, readonly, and STATS_DECLTRACK_FN_ATTR.

◆ updateImpl()

ChangeStatus AAMemoryBehaviorFunction::updateImpl ( Attributor A)
overridevirtual

See AbstractAttribute::updateImpl(Attributor &A).

Implements llvm::AbstractAttribute.

Definition at line 7202 of file AttributorAttributes.cpp.

References llvm::IRPosition::callsite_function(), llvm::CHANGED, I, llvm::REQUIRED, and llvm::UNCHANGED.


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