org.jikesrvm.compilers.opt.dfsolver

Interface DF_LatticeCell

All Superinterfaces:

GraphNode

All Known Implementing Classes:

DF_AbstractCell, DominatorCell, IndexPropagation.ArrayCell, IndexPropagation.ObjectCell

public interface DF_LatticeCell
extends GraphNode

Represents a single lattice cell in a dataflow equation system.

Method Summary

Modifier and Type	Method and Description
void	addDef(DF_Equation eq) Note that this variable appears on the LHS of an equation
void	addUse(DF_Equation eq) Note that this variable appears on the RHS of an equation
Iterator<DF_Equation>	getDefs() Returns an enumeration of the equations in which this lattice cell is defined.
Iterator<DF_Equation>	getUses() Returns an enumeration of the equations in which this lattice cell is used.
String	toString() Return a string representation of the cell

Methods inherited from interface org.jikesrvm.compilers.opt.util.GraphNode

getIndex, inNodes, outNodes, setIndex

Method Detail

getUses

Iterator<DF_Equation> getUses()

Returns an enumeration of the equations in which this lattice cell is used.

Returns:

an enumeration of the equations in which this lattice cell is used

getDefs

Iterator<DF_Equation> getDefs()

Returns an enumeration of the equations in which this lattice cell is defined.

Returns:

an enumeration of the equations in which this lattice cell is defined

toString

String toString()

Return a string representation of the cell

Overrides:

toString in class Object

Returns:

a string representation of the cell

addUse

void addUse(DF_Equation eq)

Note that this variable appears on the RHS of an equation

Parameters:

eq - the equation

addDef

void addDef(DF_Equation eq)

Note that this variable appears on the LHS of an equation

Parameters:

eq - the equation