com.oracle.truffle.api.utilities

Class CountingConditionProfile

java.lang.Object

com.oracle.truffle.api.nodes.NodeCloneable

com.oracle.truffle.api.utilities.ConditionProfile

com.oracle.truffle.api.utilities.CountingConditionProfile

All Implemented Interfaces:

java.lang.Cloneable

public final class CountingConditionProfile
extends ConditionProfile

Utility class to speculate on conditions to be never true or to be never false. Additionally to BinaryConditionProfile this implementation of ConditionProfile also counts the number of times the condition was true and false. This information is reported to the underlying optimization system using CompilerDirectives.injectBranchProbability(double, boolean). Condition profiles are intended to be used as part of if conditions.

See Also:

ConditionProfile.createCountingProfile()

Method Summary

Methods

Modifier and Type	Method and Description
int	getFalseCount()
int	getTrueCount()
boolean	profile(boolean value)
java.lang.String	toString()

Methods inherited from class com.oracle.truffle.api.utilities.ConditionProfile

createBinaryProfile, createCountingProfile

Methods inherited from class com.oracle.truffle.api.nodes.NodeCloneable

clone

Methods inherited from class java.lang.Object

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

Method Detail

profile

public boolean profile(boolean value)

Specified by:

profile in class ConditionProfile

getTrueCount

public int getTrueCount()

getFalseCount

public int getFalseCount()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object