org.jikesrvm.compilers.opt.escape

Class UnsyncReplacer

java.lang.Object

org.jikesrvm.compilers.opt.escape.UnsyncReplacer

final class UnsyncReplacer
extends Object

Replace calls to synchronized methods to calls specialized to be unsynchronized.

Field Summary

Fields

Modifier and Type	Field and Description
private static InvokeeThreadLocalContext	context Singleton: a single context representing "specialize this method when the invokee of this method is thread-local"
private OptOptions	options Controlling compiler options
private Register	reg The register to replace

Constructor Summary

Constructors

Modifier	Constructor and Description
private	UnsyncReplacer(Register r, OptOptions options)

Method Summary

Modifier and Type	Method and Description
static UnsyncReplacer	getReplacer(Instruction inst, IR ir) Generate an instance of this class for a particular instantiation site.
void	transform() Perform the transformation
private void	transform(RegisterOperand rop) Perform the transformation for a given register appearance

Methods inherited from class java.lang.Object

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

Field Detail

reg

private final Register reg

The register to replace

options

private final OptOptions options

Controlling compiler options

context

private static final InvokeeThreadLocalContext context

Singleton: a single context representing "specialize this method when the invokee of this method is thread-local"

Constructor Detail

UnsyncReplacer

private UnsyncReplacer(Register r,
                       OptOptions options)

Parameters:

r - the register operand target of the allocation

options - controlling compiler options

Method Detail

getReplacer

public static UnsyncReplacer getReplacer(Instruction inst,
                                         IR ir)

Generate an instance of this class for a particular instantiation site.

Parameters:

inst - the allocation site

ir - governing ir

Returns:

the object, or null if illegal

transform

public void transform()

Perform the transformation

transform

private void transform(RegisterOperand rop)

Perform the transformation for a given register appearance

Parameters:

rop - The def or use to check