org.jikesrvm.compilers.opt.regalloc

Class GenericRegisterRestrictions.RestrictedRegisterSet

java.lang.Object

org.jikesrvm.compilers.opt.regalloc.GenericRegisterRestrictions.RestrictedRegisterSet

Enclosing class:

GenericRegisterRestrictions

private static final class GenericRegisterRestrictions.RestrictedRegisterSet
extends Object

An instance of this class represents restrictions on physical register assignment.

Field Summary

Fields

Modifier and Type	Field and Description
private BitSet	bitset The set of registers to which assignment is forbidden.
private boolean	noVolatiles additionally, are all volatile registers forbidden?

Constructor Summary

Constructors

Constructor and Description
RestrictedRegisterSet(GenericPhysicalRegisterSet phys)

Method Summary

Modifier and Type	Method and Description
(package private) void	add(Register r)
(package private) void	addAll(BitSet set)
(package private) boolean	contains(Register r)
(package private) boolean	getNoVolatiles()
(package private) void	setNoVolatiles()

Methods inherited from class java.lang.Object

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

Field Detail

bitset

private final BitSet bitset

The set of registers to which assignment is forbidden.

noVolatiles

private boolean noVolatiles

additionally, are all volatile registers forbidden?

Constructor Detail

RestrictedRegisterSet

RestrictedRegisterSet(GenericPhysicalRegisterSet phys)

Method Detail

getNoVolatiles

boolean getNoVolatiles()

setNoVolatiles

void setNoVolatiles()

add

void add(Register r)

addAll

void addAll(BitSet set)

contains

boolean contains(Register r)