llvm::SCEVUnknown Class Reference

#include <ScalarEvolutionExpressions.h>

Inheritance diagram for llvm::SCEVUnknown:

Collaboration diagram for llvm::SCEVUnknown:

Public Member Functions
Value *	getValue () const
bool	isSizeOf (Type *&AllocTy) const
bool	isAlignOf (Type *&AllocTy) const
bool	isOffsetOf (Type *&STy, Constant *&FieldNo) const
Type *	getType () const
Public Member Functions inherited from llvm::SCEV
	SCEV (const FoldingSetNodeIDRef ID, unsigned SCEVTy)
unsigned	getSCEVType () const
Type *	getType () const
bool	isZero () const
bool	isOne () const
bool	isAllOnesValue () const
bool	isNonConstantNegative () const
void	print (raw_ostream &OS) const
void	dump () const
Public Member Functions inherited from llvm::FoldingSetImpl::Node
	Node ()
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: More...

Friends
class	ScalarEvolution

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 }
Protected Attributes inherited from llvm::SCEV
unsigned short	SubclassData

Detailed Description

SCEVUnknown - This means that we are dealing with an entirely unknown SCEV value, and only represent it as its LLVM Value. This is the "bottom" value for the analysis.

Definition at line 409 of file ScalarEvolutionExpressions.h.

Member Function Documentation

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

inlinestatic

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

Definition at line 445 of file ScalarEvolutionExpressions.h.

References llvm::SCEV::getSCEVType(), and llvm::scUnknown.

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

inline

Definition at line 442 of file ScalarEvolutionExpressions.h.

References llvm::Value::getType(), and llvm::ValueHandleBase::getValPtr().

Value* llvm::SCEVUnknown::getValue ( ) const

inline

Definition at line 430 of file ScalarEvolutionExpressions.h.

References llvm::ValueHandleBase::getValPtr().

Referenced by isAlignOf(), isOffsetOf(), isSizeOf(), llvm::SCEV::print(), and llvm::SCEVParameterRewriter::visitUnknown().

bool SCEVUnknown::isAlignOf

(

Type *&

AllocTy

)

const

Definition at line 404 of file ScalarEvolution.cpp.

References getValue().

Referenced by llvm::SCEV::print().

bool SCEVUnknown::isOffsetOf	(	Type *&	STy,
		Constant *&	FieldNo
	)		const

Definition at line 429 of file ScalarEvolution.cpp.

References llvm::User::getOperand(), getValue(), llvm::Type::isArrayTy(), and llvm::Type::isStructTy().

Referenced by llvm::SCEV::print().

bool SCEVUnknown::isSizeOf

(

Type *&

AllocTy

)

const

isSizeOf, isAlignOf, isOffsetOf - Test whether this is a special constant representing a type size, alignment, or field offset in a target-independent manner, and hasn't happened to have been folded with other operations into something unrecognizable. This is mainly only useful for pretty-printing and other situations where it isn't absolutely required for these to succeed.

Definition at line 387 of file ScalarEvolution.cpp.

References getValue().

Referenced by llvm::SCEV::print().

Friends And Related Function Documentation

friend class ScalarEvolution

friend

Definition at line 410 of file ScalarEvolutionExpressions.h.

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

• ScalarEvolutionExpressions.h
• ScalarEvolution.cpp