com.oracle.graal.loop

Class BasicInductionVariable

java.lang.Object

com.oracle.graal.loop.InductionVariable

com.oracle.graal.loop.BasicInductionVariable

public class BasicInductionVariable
extends InductionVariable

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.graal.loop.InductionVariable

InductionVariable.Direction

Field Summary

Fields

Modifier and Type	Field and Description
private ValueNode	init
private BinaryArithmeticNode<?>	op
private ValuePhiNode	phi
private ValueNode	rawStride

Fields inherited from class com.oracle.graal.loop.InductionVariable

loop

Constructor Summary

Constructors

Constructor and Description
BasicInductionVariable(LoopEx loop, ValuePhiNode phi, ValueNode init, ValueNode rawStride, BinaryArithmeticNode<?> op)

Method Summary

Modifier and Type	Method and Description
long	constantExtremum()
long	constantInit()
long	constantStride()
void	deleteUnusedNodes() Deletes any nodes created within the scope of this object that have no usages.
InductionVariable.Direction	direction()
ValueNode	exitValueNode() Returns the exit value of the induction variable.
ValueNode	extremumNode(boolean assumePositiveTripCount, Stamp stamp)
BinaryArithmeticNode<?>	getOp()
StructuredGraph	graph()
ValueNode	initNode() Returns the node that gives the initial value of this induction variable.
boolean	isConstantExtremum()
boolean	isConstantInit()
boolean	isConstantStride()
ValueNode	strideNode() Returns the stride of the induction variable.
String	toString()
ValuePhiNode	valueNode() Returns the value node that is described by this induction variable.

Methods inherited from class com.oracle.graal.loop.InductionVariable

extremumNode, getLoop

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

phi

private final ValuePhiNode phi

init

private final ValueNode init

rawStride

private final ValueNode rawStride

op

private final BinaryArithmeticNode<?> op

Constructor Detail

BasicInductionVariable

public BasicInductionVariable(LoopEx loop,
                              ValuePhiNode phi,
                              ValueNode init,
                              ValueNode rawStride,
                              BinaryArithmeticNode<?> op)

Method Detail

graph

public StructuredGraph graph()

Specified by:

graph in class InductionVariable

getOp

public BinaryArithmeticNode<?> getOp()

direction

public InductionVariable.Direction direction()

Specified by:

direction in class InductionVariable

valueNode

public ValuePhiNode valueNode()

Description copied from class: InductionVariable

Returns the value node that is described by this induction variable.

Specified by:

valueNode in class InductionVariable

initNode

public ValueNode initNode()

Description copied from class: InductionVariable

Returns the node that gives the initial value of this induction variable.

Specified by:

initNode in class InductionVariable

strideNode

public ValueNode strideNode()

Description copied from class: InductionVariable

Returns the stride of the induction variable. The stride is the value that is added to the induction variable at each iteration.

Specified by:

strideNode in class InductionVariable

isConstantInit

public boolean isConstantInit()

Specified by:

isConstantInit in class InductionVariable

isConstantStride

public boolean isConstantStride()

Specified by:

isConstantStride in class InductionVariable

constantInit

public long constantInit()

Specified by:

constantInit in class InductionVariable

constantStride

public long constantStride()

Specified by:

constantStride in class InductionVariable

extremumNode

public ValueNode extremumNode(boolean assumePositiveTripCount,
                              Stamp stamp)

Specified by:

extremumNode in class InductionVariable

exitValueNode

public ValueNode exitValueNode()

Description copied from class: InductionVariable

Returns the exit value of the induction variable. The exit value is the value of the induction variable at the loop exit.

Specified by:

exitValueNode in class InductionVariable

isConstantExtremum

public boolean isConstantExtremum()

Specified by:

isConstantExtremum in class InductionVariable

constantExtremum

public long constantExtremum()

Specified by:

constantExtremum in class InductionVariable

deleteUnusedNodes

public void deleteUnusedNodes()

Description copied from class: InductionVariable

Deletes any nodes created within the scope of this object that have no usages.

Specified by:

deleteUnusedNodes in class InductionVariable

toString

public String toString()

Overrides:

toString in class Object