org.jikesrvm.compilers.baseline

Class BranchProfile

java.lang.Object

org.jikesrvm.compilers.baseline.BranchProfile

Direct Known Subclasses:

ConditionalBranchProfile, SwitchBranchProfile

public abstract class BranchProfile
extends Object

Profile data for a branch instruction.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	bci The bytecode index of the branch instruction
protected float	freq The number of times the branch was executed.

Constructor Summary

Constructors

Constructor and Description
BranchProfile(int bci, float freq)

Method Summary

Modifier and Type	Method and Description
(package private) static float	countToFloat(int count) Converts integer count to float handling overflow
int	getBytecodeIndex()
float	getFrequency()

Methods inherited from class java.lang.Object

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

Field Detail

bci

protected final int bci

The bytecode index of the branch instruction

freq

protected final float freq

The number of times the branch was executed.

Constructor Detail

BranchProfile

BranchProfile(int bci,
              float freq)

Parameters:

bci - the bytecode index of the source branch instruction

freq - the number of times the branch was executed

Method Detail

getBytecodeIndex

public final int getBytecodeIndex()

getFrequency

public final float getFrequency()

countToFloat

static float countToFloat(int count)

Converts integer count to float handling overflow

Parameters:

count - integer count

Returns:

floating point count