harpoon.Analysis.PreciseGC
Class DynamicWBInserter

java.lang.Object
  harpoon.Analysis.Transformation.MethodMutator
      harpoon.Analysis.PreciseGC.DynamicWBInserter

All Implemented Interfaces:

Serializable

public class DynamicWBInserter
extends MethodMutator

DynamicWBInserter inserts instructions where needed to set and clear the per-object bit for dynamic write barriers.

Version:

$Id: DynamicWBInserter.java,v 1.2 2004/02/08 03:20:07 cananian Exp $

Author:

Karen Zee <kkz@tmi.lcs.mit.edu>

See Also:

Serialized Form

Nested Class Summary

static interface

DynamicWBInserter.DynamicWBAnalysis A DynamicWBAnalysis identifies NEW and ANEW Quads for which corresponding write barriers are removed.

Constructor Summary

DynamicWBInserter(HCodeFactory parent, Linker linker, ClassHierarchy ch, DynamicWBInserter.DynamicWBAnalysis dwba)
Creates a DynamicWBInserter.

Method Summary

protected HCode

mutateHCode(HCodeAndMaps input) Override this method to effect transformations on split methods.

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

DynamicWBInserter

public DynamicWBInserter(HCodeFactory parent,
                         Linker linker,
                         ClassHierarchy ch,
                         DynamicWBInserter.DynamicWBAnalysis dwba)

Creates a DynamicWBInserter.

Method Detail

mutateHCode

protected HCode mutateHCode(HCodeAndMaps input)

Description copied from class: MethodMutator

Override this method to effect transformations on split methods.

Overrides:

mutateHCode in class MethodMutator