LLVM  10.0.0svn
Public Member Functions | Public Attributes | List of all members
AAHeapToStackImpl Struct Reference

--------------------— Heap-To-Stack Conversion ------------------------— More...

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

 AAHeapToStackImpl (const IRPosition &IRP)
 
const std::string getAsStr () const override
 This function should return the "summarized" assumed state as string. More...
 
ChangeStatus manifest (Attributor &A) override
 Hook for the Attributor to trigger the manifestation of the information represented by the abstract attribute in the LLVM-IR. More...
 
ChangeStatus updateImpl (Attributor &A) override
 The actual update/transfer function which has to be implemented by the derived classes. More...
 
- Public Member Functions inherited from llvm::AAHeapToStack
 AAHeapToStack (const IRPosition &IRP)
 
bool isAssumedHeapToStack () const
 Returns true if HeapToStack conversion is assumed to be possible. More...
 
bool isKnownHeapToStack () const
 Returns true if HeapToStack conversion is known to be possible. More...
 
IRPositiongetIRPosition ()
 Return an IR position, see struct IRPosition. More...
 
const IRPositiongetIRPosition () const
 Return an IR position, see struct IRPosition. More...
 
- Public Member Functions inherited from llvm::StateWrapper< BooleanState, AbstractAttribute >
StateTypegetState () override
 See AbstractAttribute::getState(...). More...
 
const AbstractStategetState () const override
 See AbstractAttribute::getState(...). More...
 
- Public Member Functions inherited from llvm::BooleanState
 BooleanState ()
 
- Public Member Functions inherited from llvm::IntegerState
 IntegerState (base_t BestState=~0)
 Initialize the (best) state. More...
 
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 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...
 
IntegerStateaddKnownBits (base_t Bits)
 Add the bits in BitsEncoding to the "known bits". More...
 
IntegerStateremoveAssumedBits (base_t BitsEncoding)
 Remove the bits in BitsEncoding from the "assumed bits" if not known. More...
 
IntegerStateintersectAssumedBits (base_t BitsEncoding)
 Keep only "assumed bits" also set in BitsEncoding but all known ones. More...
 
IntegerStatetakeAssumedMinimum (base_t Value)
 Take minimum of assumed and Value. More...
 
IntegerStatetakeKnownMaximum (base_t Value)
 Take maximum of known and Value. More...
 
bool operator== (const IntegerState &R) const
 Equality for IntegerState. More...
 
bool operator!= (const IntegerState &R) const
 Inequality for IntegerState. More...
 
IntegerState operator^= (const IntegerState &R)
 "Clamp" this state with R. More...
 
IntegerState operator+= (const IntegerState &R)
 "Clamp" this state with R. More...
 
IntegerState operator &= (const IntegerState &R)
 Make this the minimum, known and assumed, of this state and R. More...
 
IntegerState operator|= (const IntegerState &R)
 Make this the maximum, known and assumed, of this state and R. More...
 
- Public Member Functions inherited from llvm::AbstractState
virtual ~AbstractState ()
 
- Public Member Functions inherited from llvm::AbstractAttribute
virtual ~AbstractAttribute ()
 Virtual destructor. More...
 
virtual void initialize (Attributor &A)
 Initialize the state with the information in the Attributor A. More...
 
virtual void print (raw_ostream &OS) const
 Helper functions, for debug purposes only. More...
 
void dump () const
 
- Public Member Functions inherited from llvm::IRPosition
virtual ~IRPosition ()
 
 IRPosition ()
 Default constructor available to create invalid positions implicitly. More...
 
bool operator== (const IRPosition &RHS) const
 
bool operator!= (const IRPosition &RHS) const
 
ValuegetAnchorValue ()
 Return the value this abstract attribute is anchored with. More...
 
const ValuegetAnchorValue () const
 
FunctiongetAssociatedFunction ()
 } More...
 
const FunctiongetAssociatedFunction () const
 
ArgumentgetAssociatedArgument ()
 } More...
 
const ArgumentgetAssociatedArgument () const
 
bool isFnInterfaceKind () const
 } More...
 
FunctiongetAnchorScope ()
 Return the Function surrounding the anchor value. More...
 
const FunctiongetAnchorScope () const
 
InstructiongetCtxI ()
 } More...
 
const InstructiongetCtxI () const
 
ValuegetAssociatedValue ()
 } More...
 
const ValuegetAssociatedValue () const
 
int getArgNo () const
 } 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) 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) const
 Return the attributes of any kind in AKs existing in the IR at a position that will affect this one. More...
 
Attribute getAttr (Attribute::AttrKind AK) const
 Return the attribute of kind AK existing in the IR at this position. More...
 
bool isAnyCallSitePosition () const
 

Public Attributes

SmallSetVector< Instruction *, 4 > MallocCalls
 Collection of all malloc calls in a function. More...
 
DenseSet< const Instruction * > BadMallocCalls
 Collection of malloc calls that cannot be converted. More...
 
DenseMap< Instruction *, SmallPtrSet< Instruction *, 4 > > FreesForMalloc
 A map for each malloc call to the set of associated free calls. More...
 

Additional Inherited Members

- Public Types inherited from llvm::StateWrapper< BooleanState, AbstractAttribute >
using StateType = BooleanState
 Provide static access to the type of the state. More...
 
- Public Types inherited from llvm::IntegerState
using base_t = uint32_t
 Underlying integer type, we assume 32 bits to be enough. More...
 
- Public Types inherited from llvm::AbstractAttribute
using StateType = AbstractState
 
- Public Types inherited from llvm::IRPosition
enum  Kind : int {
  IRP_INVALID = -6, IRP_FLOAT = -5, IRP_RETURNED = -4, IRP_CALL_SITE_RETURNED = -3,
  IRP_FUNCTION = -2, IRP_CALL_SITE = -1, IRP_ARGUMENT = 0, IRP_CALL_SITE_ARGUMENT = 1
}
 The positions we distinguish in the IR. More...
 
- Static Public Member Functions inherited from llvm::AAHeapToStack
static AAHeapToStackcreateForPosition (const IRPosition &IRP, Attributor &A)
 } More...
 
- Static Public Member Functions inherited from llvm::IntegerState
static constexpr base_t getWorstState ()
 Return the worst possible representable state. More...
 
- Static Public Member Functions inherited from llvm::IRPosition
static const IRPosition value (const Value &V)
 Create a position describing the value of V. More...
 
static const IRPosition function (const Function &F)
 Create a position describing the function scope of F. More...
 
static const IRPosition returned (const Function &F)
 Create a position describing the returned value of F. More...
 
static const IRPosition argument (const Argument &Arg)
 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_function (ImmutableCallSite ICS)
 Create a position describing the function scope of ICS. More...
 
static const IRPosition callsite_returned (ImmutableCallSite ICS)
 Create a position describing the returned value of ICS. More...
 
static const IRPosition callsite_argument (ImmutableCallSite ICS, unsigned ArgNo)
 Create a position describing the argument of ICS at position ArgNo. More...
 
static const IRPosition function_scope (const IRPosition &IRP)
 Create a position with function scope matching the "context" of IRP. More...
 
- Static Public Attributes inherited from llvm::AAHeapToStack
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...
 
virtual void trackStatistics () const =0
 Hook to enable custom statistic tracking, called after manifest that resulted in a change if statistics are enabled. More...
 

Detailed Description

--------------------— Heap-To-Stack Conversion ------------------------—

Definition at line 3203 of file Attributor.cpp.

Constructor & Destructor Documentation

◆ AAHeapToStackImpl()

AAHeapToStackImpl::AAHeapToStackImpl ( const IRPosition IRP)
inline

Definition at line 3204 of file Attributor.cpp.

Member Function Documentation

◆ getAsStr()

const std::string AAHeapToStackImpl::getAsStr ( ) const
inlineoverridevirtual

This function should return the "summarized" assumed state as string.

Implements llvm::AbstractAttribute.

Definition at line 3206 of file Attributor.cpp.

References llvm::to_string().

◆ manifest()

ChangeStatus AAHeapToStackImpl::manifest ( Attributor A)
inlineoverridevirtual

◆ updateImpl()

ChangeStatus AAHeapToStackImpl::updateImpl ( Attributor A)
overridevirtual

Member Data Documentation

◆ BadMallocCalls

DenseSet<const Instruction *> AAHeapToStackImpl::BadMallocCalls

Collection of malloc calls that cannot be converted.

Definition at line 3283 of file Attributor.cpp.

◆ FreesForMalloc

DenseMap<Instruction *, SmallPtrSet<Instruction *, 4> > AAHeapToStackImpl::FreesForMalloc

A map for each malloc call to the set of associated free calls.

Definition at line 3286 of file Attributor.cpp.

◆ MallocCalls

SmallSetVector<Instruction *, 4> AAHeapToStackImpl::MallocCalls

Collection of all malloc calls in a function.

Definition at line 3280 of file Attributor.cpp.


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