org.jikesrvm.compilers.opt.escape
Class MethodSummary

java.lang.Object
  org.jikesrvm.compilers.opt.escape.MethodSummary

 class MethodSummary
extends Object

Hold semantic information about a method that is not defined in RVMMethod.

inProgress

private static boolean inProgress

Is this method currently being analyzed? Used for recursive invocations of the optimizing compiler.

RES_ESCAPE

private static final long RES_ESCAPE

Default escape result, that the result escapes but that no parameter is escaping.

See Also:

Constant Field Values

escapeInfo

private long escapeInfo

Escape result, top bit is result of the method bits 0..63 are for parameters 0..63 respectively

MethodSummary

MethodSummary(RVMMethod m)

Parameters:

m - RVMMethod representing this method.

setParameterMayEscapeThread

public void setParameterMayEscapeThread(int p,
                                        boolean b)

Record that a parameter may or may not escape from a thread.

Parameters:

p - the number of the parameter

b - may it escape?

parameterMayEscapeThread

public boolean parameterMayEscapeThread(int p)

Query whether a parameter may escape from a thread.

Parameters:

p - the number of the parameter

Returns:

false iff the parameter must not escape from the thread. true otherwise.

setResultMayEscapeThread

public void setResultMayEscapeThread(boolean b)

Record that a result of this method may or may not escape from a thread.

Parameters:

b - may it escape?

resultMayEscapeThread

public boolean resultMayEscapeThread()

Query whether the result of this method may escape from a thread.

Returns:

false iff the parameter must not escape from the thread. true otherwise.

inProgress

public boolean inProgress()

Is analysis of this method in progress?

setInProgress

public void setInProgress(boolean b)

Mark that analysis of this method is or is not in progress.

Parameters:

b -