DF_LatticeCell (Jikes RVM API)

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org.jikesrvm.compilers.opt.dfsolver
Interface DF_LatticeCell

All Superinterfaces:: GraphElement, GraphNode

All Known Implementing Classes:: DF_AbstractCell, DominatorCell, IndexPropagation.ArrayCell, IndexPropagation.ObjectCell

public interface DF_LatticeCell
extends GraphNode
extends GraphNode

Represents a single lattice cell in a dataflow equation system.

Method Summary
`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`

Methods inherited from interface org.jikesrvm.compilers.opt.util.GraphElement
`getScratch, setScratch`

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