org.jikesrvm.compilers.opt.regalloc

Class ScratchMap.Interval

java.lang.Object

org.jikesrvm.compilers.opt.regalloc.ScratchMap.Interval

Direct Known Subclasses:

ScratchMap.PhysicalInterval, ScratchMap.SymbolicInterval

Enclosing class:

ScratchMap

private abstract class ScratchMap.Interval
extends Object

Super class of physical and symbolic intervals

Field Summary

Fields

Modifier and Type	Field and Description
protected Instruction	begin The instruction before which the scratch range begins.
protected Instruction	end The instruction before which the scratch range ends.
protected Register	scratch The physical scratch register or register evicted.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Interval(Register scratch)

Method Summary

Modifier and Type	Method and Description
protected boolean	contains(int n) Does this interval contain the instruction numbered n?

Methods inherited from class java.lang.Object

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

Field Detail

begin

protected Instruction begin

The instruction before which the scratch range begins.

end

protected Instruction end

The instruction before which the scratch range ends.

scratch

protected final Register scratch

The physical scratch register or register evicted.

Constructor Detail

Interval

protected Interval(Register scratch)

Method Detail

contains

protected final boolean contains(int n)

Does this interval contain the instruction numbered n?

Parameters:

n - instruction number

Returns:

true if and only if the instruction with the given number is contained n this interval