LLVM 19.0.0git
Public Member Functions | Static Public Member Functions | Friends | List of all members
llvm::SCEVUnknown Class Referencefinal

This means that we are dealing with an entirely unknown SCEV value, and only represent it as its LLVM Value. More...

#include "llvm/Analysis/ScalarEvolutionExpressions.h"

Inheritance diagram for llvm::SCEVUnknown:
Inheritance graph
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Public Member Functions

ValuegetValue () const
 
TypegetType () const
 
- Public Member Functions inherited from llvm::SCEV
 SCEV (const FoldingSetNodeIDRef ID, SCEVTypes SCEVTy, unsigned short ExpressionSize)
 
 SCEV (const SCEV &)=delete
 
SCEVoperator= (const SCEV &)=delete
 
SCEVTypes getSCEVType () const
 
TypegetType () 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:
 

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
}
 NoWrapFlags are bitfield indices into SubclassData. More...
 
- 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.
 

Detailed Description

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 576 of file ScalarEvolutionExpressions.h.

Member Function Documentation

◆ classof()

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

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

Definition at line 602 of file ScalarEvolutionExpressions.h.

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

◆ getType()

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

◆ getValue()

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

Friends And Related Function Documentation

◆ ScalarEvolution

friend class ScalarEvolution
friend

Definition at line 577 of file ScalarEvolutionExpressions.h.


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