llvm::SCEVTruncateExpr Class Reference

#include <ScalarEvolutionExpressions.h>

Inheritance diagram for llvm::SCEVTruncateExpr:

[legend]

Collaboration diagram for llvm::SCEVTruncateExpr:

[legend]

List of all members.

Public Member Functions
const SCEVHandle &	getOperand () const
virtual const Type *	getType () const
virtual bool	isLoopInvariant (const Loop *L) const
virtual bool	hasComputableLoopEvolution (const Loop *L) const
SCEVHandle	replaceSymbolicValuesWithConcrete (const SCEVHandle &Sym, const SCEVHandle &Conc, ScalarEvolution &SE) const
virtual void	print (std::ostream &OS) const
void	print (std::ostream *OS) const
Static Public Member Functions
static bool	classof (const SCEVTruncateExpr *S)
	Methods for support type inquiry through isa, cast, and dyn_cast:.
static bool	classof (const SCEV *S)
Friends
class	ScalarEvolution

---

Detailed Description

SCEVTruncateExpr - This class represents a truncation of an integer value to a smaller integer value.

Definition at line 75 of file ScalarEvolutionExpressions.h.

---

Member Function Documentation

const SCEVHandle& llvm::SCEVTruncateExpr::getOperand

(

)

const [inline]

Definition at line 83 of file ScalarEvolutionExpressions.h.

References Op.

Referenced by llvm::SCEVExpander::visitTruncateExpr().

virtual const Type* llvm::SCEVTruncateExpr::getType

(

)

const [inline, virtual]

getType - Return the LLVM type of this SCEV expression.

Implements llvm::SCEV.

Definition at line 84 of file ScalarEvolutionExpressions.h.

References Ty.

Referenced by llvm::SCEVExpander::visitTruncateExpr().

virtual bool llvm::SCEVTruncateExpr::isLoopInvariant

(

const Loop *

L

)

const [inline, virtual]

isLoopInvariant - Return true if the value of this SCEV is unchanging in the specified loop.

Implements llvm::SCEV.

Definition at line 86 of file ScalarEvolutionExpressions.h.

References Op.

virtual bool llvm::SCEVTruncateExpr::hasComputableLoopEvolution

(

const Loop *

L

)

const [inline, virtual]

hasComputableLoopEvolution - Return true if this SCEV changes value in a known way in the specified loop. This property being true implies that the value is variant in the loop AND that we can emit an expression to compute the value of the expression at any particular loop iteration.

Implements llvm::SCEV.

Definition at line 90 of file ScalarEvolutionExpressions.h.

References Op.

SCEVHandle llvm::SCEVTruncateExpr::replaceSymbolicValuesWithConcrete	(	const SCEVHandle &	Sym,
		const SCEVHandle &	Conc,
		ScalarEvolution &	SE
	)			const [inline, virtual]

replaceSymbolicValuesWithConcrete - If this SCEV internally references the symbolic value "Sym", construct and return a new SCEV that produces the same value, but which uses the concrete value Conc instead of the symbolic value. If this SCEV does not use the symbolic value, it returns itself.

Implements llvm::SCEV.

Definition at line 94 of file ScalarEvolutionExpressions.h.

References llvm::ScalarEvolution::getTruncateExpr(), H, Op, and Ty.

void SCEVTruncateExpr::print

(

std::ostream &

OS

)

const [virtual]

print - Print out the internal representation of this scalar to the specified stream. This should really only be used for debugging purposes.

Implements llvm::SCEV.

Definition at line 208 of file ScalarEvolution.cpp.

References Op, and Ty.

Referenced by print().

void llvm::SCEVTruncateExpr::print

(

std::ostream *

OS

)

const [inline]

Reimplemented from llvm::SCEV.

Definition at line 104 of file ScalarEvolutionExpressions.h.

References print().

static bool llvm::SCEVTruncateExpr::classof

(

const SCEVTruncateExpr *

S

)

[inline, static]

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

Definition at line 107 of file ScalarEvolutionExpressions.h.

static bool llvm::SCEVTruncateExpr::classof

(

const SCEV *

S

)

[inline, static]

Definition at line 108 of file ScalarEvolutionExpressions.h.

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

---

Friends And Related Function Documentation

friend class ScalarEvolution [friend]

Definition at line 76 of file ScalarEvolutionExpressions.h.

---

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

• ScalarEvolutionExpressions.h
• ScalarEvolution.cpp