llvm::IVUsers Class Reference

#include "llvm/Analysis/IVUsers.h"

Public Types
typedef ilist< IVStrideUse >::iterator	iterator
typedef ilist< IVStrideUse >::const_iterator	const_iterator

Public Member Functions
	IVUsers (Loop *L, AssumptionCache *AC, LoopInfo *LI, DominatorTree *DT, ScalarEvolution *SE)
	IVUsers (IVUsers &&X)
	IVUsers (const IVUsers &)=delete
IVUsers &	operator= (IVUsers &&)=delete
IVUsers &	operator= (const IVUsers &)=delete
Loop *	getLoop () const
bool	AddUsersIfInteresting (Instruction *I)
	AddUsersIfInteresting - Inspect the specified Instruction.
IVStrideUse &	AddUser (Instruction *User, Value *Operand)
const SCEV *	getReplacementExpr (const IVStrideUse &IU) const
	getReplacementExpr - Return a SCEV expression which computes the value of the OperandValToReplace of the given IVStrideUse.
const SCEV *	getExpr (const IVStrideUse &IU) const
	getExpr - Return the expression for the use.
const SCEV *	getStride (const IVStrideUse &IU, const Loop *L) const
iterator	begin ()
iterator	end ()
const_iterator	begin () const
const_iterator	end () const
bool	empty () const
bool	isIVUserOrOperand (Instruction *Inst) const
void	releaseMemory ()
void	print (raw_ostream &OS, const Module *=nullptr) const
void	dump () const
	dump - This method is used for debugging.

Friends
class	IVStrideUse

Detailed Description

Definition at line 91 of file IVUsers.h.

Member Typedef Documentation

const_iterator

typedef ilist<IVStrideUse>::const_iterator llvm::IVUsers::const_iterator

Definition at line 142 of file IVUsers.h.

iterator

typedef ilist<IVStrideUse>::iterator llvm::IVUsers::iterator

Definition at line 141 of file IVUsers.h.

Constructor & Destructor Documentation

IVUsers() [1/3]

IVUsers::IVUsers	(	Loop *	L,
		AssumptionCache *	AC,
		LoopInfo *	LI,
		DominatorTree *	DT,
		ScalarEvolution *	SE )

Definition at line 251 of file IVUsers.cpp.

References AddUsersIfInteresting(), llvm::CodeMetrics::collectEphemeralValues(), I, and llvm::isa().

Referenced by IVUsers(), IVUsers(), operator=(), and operator=().

IVUsers() [2/3]

llvm::IVUsers::IVUsers ( IVUsers && X )

inline

Definition at line 111 of file IVUsers.h.

References IVStrideUse, IVUsers(), llvm::move(), and X.

IVUsers() [3/3]

llvm::IVUsers::IVUsers ( const IVUsers & )

delete

References IVUsers().

Member Function Documentation

AddUser()

IVStrideUse & IVUsers::AddUser	(	Instruction *	User,
		Value *	Operand )

Definition at line 246 of file IVUsers.cpp.

References IVStrideUse.

Referenced by AddUsersIfInteresting().

AddUsersIfInteresting()

bool IVUsers::AddUsersIfInteresting

(

Instruction *

I

)

AddUsersIfInteresting - Inspect the specified Instruction.

Inspect the specified instruction.

If it is a reducible SCEV, recursively add its users to the IVUsesByStride set and return true. Otherwise, return false.

Definition at line 136 of file IVUsers.cpp.

References AddUser(), AddUsersIfInteresting(), llvm::cast(), llvm::dbgs(), llvm::denormalizeForPostIncUse(), DL, I, llvm::SmallPtrSetImpl< PtrType >::insert(), llvm::isa(), isInteresting(), llvm::isSafeToSpeculativelyExecute(), IVStrideUse, IVUseShouldUsePostIncValue(), LLVM_DEBUG, and llvm::normalizeForPostIncUseIf().

Referenced by AddUsersIfInteresting(), and IVUsers().

begin() [1/2]

iterator llvm::IVUsers::begin ( )

inline

Definition at line 143 of file IVUsers.h.

begin() [2/2]

const_iterator llvm::IVUsers::begin ( ) const

inline

Definition at line 145 of file IVUsers.h.

dump()

LLVM_DUMP_METHOD void IVUsers::dump

(

)

const

dump - This method is used for debugging.

Definition at line 292 of file IVUsers.cpp.

References llvm::dbgs(), LLVM_DUMP_METHOD, and print().

empty()

bool llvm::IVUsers::empty ( ) const

inline

Definition at line 147 of file IVUsers.h.

end() [1/2]

iterator llvm::IVUsers::end ( )

inline

Definition at line 144 of file IVUsers.h.

end() [2/2]

const_iterator llvm::IVUsers::end ( ) const

inline

Definition at line 146 of file IVUsers.h.

getExpr()

const SCEV * IVUsers::getExpr

(

const IVStrideUse &

IU

)

const

getExpr - Return the expression for the use.

Returns nullptr if the result is not invertible.

Definition at line 334 of file IVUsers.cpp.

References llvm::IVStrideUse::getPostIncLoops(), getReplacementExpr(), IVStrideUse, and llvm::normalizeForPostIncUse().

Referenced by getStride().

getLoop()

Loop * llvm::IVUsers::getLoop ( ) const

inline

Definition at line 122 of file IVUsers.h.

getReplacementExpr()

const SCEV * IVUsers::getReplacementExpr

(

const IVStrideUse &

IU

)

const

getReplacementExpr - Return a SCEV expression which computes the value of the OperandValToReplace of the given IVStrideUse.

getReplacementExpr - Return a SCEV expression which computes the value of the OperandValToReplace.

Definition at line 329 of file IVUsers.cpp.

References llvm::IVStrideUse::getOperandValToReplace(), and IVStrideUse.

Referenced by getExpr(), and print().

getStride()

const SCEV * IVUsers::getStride	(	const IVStrideUse &	IU,
		const Loop *	L ) const

Definition at line 356 of file IVUsers.cpp.

References findAddRecForLoop(), getExpr(), and IVStrideUse.

isIVUserOrOperand()

bool llvm::IVUsers::isIVUserOrOperand ( Instruction * Inst ) const

inline

Definition at line 149 of file IVUsers.h.

operator=() [1/2]

IVUsers & llvm::IVUsers::operator= ( const IVUsers & )

delete

References IVUsers().

operator=() [2/2]

IVUsers & llvm::IVUsers::operator= ( IVUsers && )

delete

References IVUsers().

print()

void IVUsers::print	(	raw_ostream &	OS,
		const Module *	M = nullptr ) const

Definition at line 265 of file IVUsers.cpp.

References getReplacementExpr(), and IVStrideUse.

Referenced by dump().

releaseMemory()

void IVUsers::releaseMemory

(

)

Definition at line 295 of file IVUsers.cpp.

Friends And Related Symbol Documentation

IVStrideUse

friend class IVStrideUse

friend

Definition at line 92 of file IVUsers.h.

References IVStrideUse.

Referenced by AddUser(), AddUsersIfInteresting(), getExpr(), getReplacementExpr(), getStride(), IVStrideUse, IVUsers(), and print().

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

• include/llvm/Analysis/IVUsers.h
• lib/Analysis/IVUsers.cpp