com.oracle.graal.lir.alloc.lsra

Enum Interval.State

java.lang.Object

java.lang.Enum<Interval.State>

com.oracle.graal.lir.alloc.lsra.Interval.State

All Implemented Interfaces:

Serializable, Comparable<Interval.State>

Enclosing class:

Interval

static enum Interval.State
extends Enum<Interval.State>

Constants denoting the linear-scan states an interval may be in with respect to the start position of the interval being processed.

Enum Constant Summary

Enum Constants

Enum Constant and Description
Active An interval that covers position and has an assigned register.
Handled An interval that ends before position or is spilled to memory.
Inactive An interval that starts before and ends after position but does not cover it due to a lifetime hole.
Unhandled An interval that starts after position.

Method Summary

Modifier and Type	Method and Description
static Interval.State	valueOf(String name) Returns the enum constant of this type with the specified name.
static Interval.State[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

Unhandled

public static final Interval.State Unhandled

An interval that starts after position.

Active

public static final Interval.State Active

An interval that covers position and has an assigned register.

Inactive

public static final Interval.State Inactive

An interval that starts before and ends after position but does not cover it due to a lifetime hole.

Handled

public static final Interval.State Handled

An interval that ends before position or is spilled to memory.

Method Detail

values

public static Interval.State[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Interval.State c : Interval.State.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Interval.State valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null