harpoon.Analysis.DynamicSyncRemoval
Class SyncRemover

java.lang.Object
  harpoon.Analysis.Transformation.MethodMutator<Quad>
      harpoon.Analysis.DynamicSyncRemoval.SyncRemover

All Implemented Interfaces:

Serializable

public class SyncRemover
extends MethodMutator<Quad>

SyncRemover calls a "magic" native method to determine if synchronization should be done on this object, and skips the MONITORENTER/MONITOREXIT sequence if the answer is no. We need to duplication and split the code between MONITORENTER and MONITOREXIT for this to play nicely with the Transactions transformation. For best results, run TreePostPass after this transformation.

Version:

$Id: SyncRemover.java,v 1.6 2004/02/08 03:19:25 cananian Exp $

Author:

C. Scott Ananian <cananian@alumni.princeton.edu>

See Also:

Serialized Form

Constructor Summary

SyncRemover(HCodeFactory parent, Linker l)
Creates a SyncRemover.

Method Summary

protected HCode<Quad>	mutateHCode(HCodeAndMaps<Quad> input) Override this method to effect transformations on split methods.
static HCodeFactory	treeCodeFactory(Frame f, HCodeFactory hcf) Return an HCodeFactory that will clean up the tree form of the transformed code by performing some optimizations which can't be represented in quad form.

Methods inherited from class harpoon.Analysis.Transformation.MethodMutator

cloneHCode, codeFactory, mutateCodeName

Methods inherited from class java.lang.Object

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

Constructor Detail

SyncRemover

public SyncRemover(HCodeFactory parent,
                   Linker l)

Creates a SyncRemover.

Method Detail

treeCodeFactory

public static HCodeFactory treeCodeFactory(Frame f,
                                           HCodeFactory hcf)

Return an HCodeFactory that will clean up the tree form of the transformed code by performing some optimizations which can't be represented in quad form.

mutateHCode

protected HCode<Quad> mutateHCode(HCodeAndMaps<Quad> input)

Description copied from class: MethodMutator

Override this method to effect transformations on split methods.

Overrides:

mutateHCode in class MethodMutator<Quad>