com.oracle.truffle.api.utilities

Class PrimitiveValueProfile

java.lang.Object

com.oracle.truffle.api.utilities.ValueProfile

com.oracle.truffle.api.utilities.PrimitiveValueProfile

public class PrimitiveValueProfile
extends ValueProfile

Represents a ValueProfile that speculates on the primitive equality or object identity of values.

Note that for {code float} and double values we compare primitive equality via Float.floatToRawIntBits(float) and Double.doubleToRawLongBits(double), so that for example -0.0 is not considered the same as 0.0, even though primitive equality would normally say that it was.

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	exactCompare(double a, double b)
static boolean	exactCompare(float a, float b)
java.lang.Object	getCachedValue()
boolean	isGeneric()
boolean	isUninitialized()
boolean	profile(boolean value)
byte	profile(byte value)
char	profile(char value)
double	profile(double value)
float	profile(float value)
int	profile(int value)
long	profile(long value)
java.lang.Object	profile(java.lang.Object value)
short	profile(short value)
java.lang.String	toString()

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

createClassProfile, createIdentityProfile, createPrimitiveProfile

Methods inherited from class java.lang.Object

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

Method Detail

profile

public java.lang.Object profile(java.lang.Object value)

Specified by:

profile in class ValueProfile

profile

public byte profile(byte value)

profile

public short profile(short value)

profile

public int profile(int value)

profile

public long profile(long value)

profile

public float profile(float value)

profile

public double profile(double value)

profile

public boolean profile(boolean value)

profile

public char profile(char value)

isGeneric

public boolean isGeneric()

isUninitialized

public boolean isUninitialized()

getCachedValue

public java.lang.Object getCachedValue()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

exactCompare

public static boolean exactCompare(float a,
                   float b)

exactCompare

public static boolean exactCompare(double a,
                   double b)