SwitchBranchProfile (Jikes RVM API)

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org.jikesrvm.compilers.baseline
Class SwitchBranchProfile

java.lang.Object
  org.jikesrvm.compilers.baseline.BranchProfile
      org.jikesrvm.compilers.baseline.SwitchBranchProfile

public final class SwitchBranchProfile
extends BranchProfile
extends BranchProfile

Profile data for a branch instruction.

Field Summary
`(package private) float[]`	`counts` The number of times that the different arms of a switch were taken.

Fields inherited from class org.jikesrvm.compilers.baseline.BranchProfile
`bci, freq`

Constructor Summary
`SwitchBranchProfile(int _bci, int[] cs, int start, int numEntries)`

Method Summary
`float`	`getCaseProbability(int n)`
`float`	`getDefaultProbability()`
`(package private) float`	`getProbability(int n)`
`private static float`	`sumCounts(int[] counts, int start, int numEntries)`
`String`	`toString()`

Methods inherited from class org.jikesrvm.compilers.baseline.BranchProfile
`getBytecodeIndex, getFrequency`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

counts

final float[] counts

The number of times that the different arms of a switch were taken. By convention, the default case is the last entry.

Constructor Detail

SwitchBranchProfile

SwitchBranchProfile(int _bci,
                    int[] cs,
                    int start,
                    int numEntries)

Parameters:: _bci - the bytecode index of the source branch instruction; cs - counts; start - idx of first entry in cs; numEntries - number of entries in cs for this switch

Method Detail

getDefaultProbability

public float getDefaultProbability()

getCaseProbability

public float getCaseProbability(int n)

getProbability

float getProbability(int n)

toString

public String toString()

Overrides:: toString in class Object

sumCounts

private static float sumCounts(int[] counts,
                               int start,
                               int numEntries)