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org.jikesrvm.compilers.opt.ssa
Class IndexPropagationSystem.UpdateDefObjectOperator
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package class IndexPropagationSystem.UpdateDefObjectOperator
extends DF_Operator
Represents an UPDATE_DEF function over two ObjectCells.

Given a value number v, this function updates a heap variable lattice cell to indicate that element at address v is available, but kills any available indices that are not DD from v

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Field Summary
private final int valueNumber
The value number used in the dataflow equation.
Constructor Summary
IndexPropagationSystem.UpdateDefObjectOperator( int valueNumber )
Create an operator with a given value number
Method Summary
boolean evaluate( DF_LatticeCell [] operands )
Evaluate the dataflow equation with this operator.
String toString()
No description provided.
Methods inherited from java.langObject
Field Detail
valueNumber
private final int valueNumber
The value number used in the dataflow equation.
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Constructor Detail
IndexPropagationSystem.UpdateDefObjectOperator
IndexPropagationSystem.UpdateDefObjectOperator ( int valueNumber )
Create an operator with a given value number
Parameters
TypeNameDescription
int valueNumber No description provided.
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Method Detail
evaluate
public boolean evaluate ( DF_LatticeCell [] operands )
Evaluate the dataflow equation with this operator.
Overrides method in DF_Operator
Parameters
TypeNameDescription
DF_LatticeCell [] operands operands in the dataflow equation
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toString
public String toString ( )
No description provided.
Overrides method in Object
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