LLVM: llvm::SCEVCastExpr Class Reference

LLVM 20.0.0git

This is the base class for unary cast operator classes. More...

#include "llvm/Analysis/ScalarEvolutionExpressions.h"

Inheritance diagram for llvm::SCEVCastExpr:

Inheritance graph

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Public Member Functions
const SCEV *	getOperand () const

const SCEV *	getOperand (unsigned i) const

ArrayRef< const SCEV * >	operands () const

size_t	getNumOperands () const

Type *	getType () const

Public Member Functions inherited from llvm::SCEV
	SCEV (const FoldingSetNodeIDRef ID, SCEVTypes SCEVTy, unsigned short ExpressionSize)

	SCEV (const SCEV &)=delete

SCEV &	operator= (const SCEV &)=delete

SCEVTypes	getSCEVType () const

Type *	getType () const
	Return the LLVM type of this SCEV expression.

ArrayRef< const SCEV * >	operands () const
	Return operands of this SCEV expression.

bool	isZero () const
	Return true if the expression is a constant zero.

bool	isOne () const
	Return true if the expression is a constant one.

bool	isAllOnesValue () const
	Return true if the expression is a constant all-ones value.

bool	isNonConstantNegative () const
	Return true if the specified scev is negated, but not a constant.

unsigned short	getExpressionSize () const

void	print (raw_ostream &OS) const
	Print out the internal representation of this scalar to the specified stream.

void	dump () const
	This method is used for debugging.

Public Member Functions inherited from llvm::FoldingSetBase::Node
	Node ()=default

void *	getNextInBucket () const

void	SetNextInBucket (void *N)

Static Public Member Functions
static bool	classof (const SCEV *S)
	Methods for support type inquiry through isa, cast, and dyn_cast:

Protected Member Functions
	SCEVCastExpr (const FoldingSetNodeIDRef ID, SCEVTypes SCEVTy, const SCEV op, Type ty)

Protected Attributes
const SCEV *	Op

Type *	Ty

Protected Attributes inherited from llvm::SCEV
const unsigned short	ExpressionSize

unsigned short	SubclassData = 0
	This field is initialized to zero and may be used in subclasses to store miscellaneous information.

Additional Inherited Members
Public Types inherited from llvm::SCEV
enum	NoWrapFlags { FlagAnyWrap = 0 , FlagNW = (1 << 0) , FlagNUW = (1 << 1) , FlagNSW = (1 << 2) , NoWrapMask = (1 << 3) - 1 }
	NoWrapFlags are bitfield indices into SubclassData. More...

Detailed Description

This is the base class for unary cast operator classes.

Definition at line 103 of file ScalarEvolutionExpressions.h.

Constructor & Destructor Documentation

◆ SCEVCastExpr()

SCEVCastExpr::SCEVCastExpr	(	const FoldingSetNodeIDRef	ID,
		SCEVTypes	SCEVTy,
		const SCEV *	op,
		Type *	ty
	)

protected

Definition at line 519 of file ScalarEvolution.cpp.

Member Function Documentation

◆ classof()

static bool llvm::SCEVCastExpr::classof ( const SCEV * S )

inlinestatic

Methods for support type inquiry through isa, cast, and dyn_cast:

Definition at line 122 of file ScalarEvolutionExpressions.h.

References llvm::SCEV::getSCEVType(), llvm::scPtrToInt, llvm::scSignExtend, llvm::scTruncate, and llvm::scZeroExtend.

◆ getNumOperands()

size_t llvm::SCEVCastExpr::getNumOperands ( ) const

inline

Definition at line 118 of file ScalarEvolutionExpressions.h.

◆ getOperand() [1/2]

const SCEV * llvm::SCEVCastExpr::getOperand ( ) const

inline

Definition at line 112 of file ScalarEvolutionExpressions.h.

References Op.

Referenced by BuildConstantFromSCEV(), isKnownPredicateExtendIdiom(), isSimpleCastedPHI(), llvm::SCEV::print(), llvm::ScalarEvolution::LoopGuards::rewrite(), llvm::SCEVRewriteVisitor< SC >::visitPtrToIntExpr(), llvm::SCEVRewriteVisitor< SC >::visitSignExtendExpr(), llvm::SCEVRewriteVisitor< SC >::visitTruncateExpr(), and llvm::SCEVRewriteVisitor< SC >::visitZeroExtendExpr().

◆ getOperand() [2/2]

const SCEV * llvm::SCEVCastExpr::getOperand ( unsigned i ) const

inline

Definition at line 113 of file ScalarEvolutionExpressions.h.

References assert(), and Op.

◆ getType()

Type * llvm::SCEVCastExpr::getType ( ) const

inline

Definition at line 119 of file ScalarEvolutionExpressions.h.

References Ty.

Referenced by BuildConstantFromSCEV(), isSimpleCastedPHI(), llvm::SCEV::print(), llvm::ScalarEvolution::LoopGuards::rewrite(), llvm::SCEVRewriteVisitor< SC >::visitPtrToIntExpr(), llvm::SCEVRewriteVisitor< SC >::visitSignExtendExpr(), llvm::SCEVRewriteVisitor< SC >::visitTruncateExpr(), and llvm::SCEVRewriteVisitor< SC >::visitZeroExtendExpr().

◆ operands()

ArrayRef< const SCEV * > llvm::SCEVCastExpr::operands ( ) const

inline

Definition at line 117 of file ScalarEvolutionExpressions.h.

References Op.

Member Data Documentation

◆ Op

const SCEV* llvm::SCEVCastExpr::Op

protected

Definition at line 105 of file ScalarEvolutionExpressions.h.

Referenced by getOperand(), and operands().

◆ Ty

Type* llvm::SCEVCastExpr::Ty

protected

Definition at line 106 of file ScalarEvolutionExpressions.h.

Referenced by getType().

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

include/llvm/Analysis/ScalarEvolutionExpressions.h
lib/Analysis/ScalarEvolution.cpp