harpoon.IR.Tree
Class OptimizedTreeCode

java.lang.Object
  harpoon.ClassFile.HCode<Tree>
      harpoon.IR.Tree.Code
          harpoon.IR.Tree.OptimizedTreeCode

public class OptimizedTreeCode
extends Code

The OptimizedTreeCode codeview is an optimized, canonical representation of Tree form. It provides a code factory that will generate tree code optimized with a set of standard passes, and a code factory that allows for specifying your own set of optimization passes.

Version:

$Id: OptimizedTreeCode.java,v 1.4 2003/03/11 17:24:56 cananian Exp $

Author:

Duncan Bryce <duncan@lcs.mit.edu>

Nested Class Summary

static interface

OptimizedTreeCode.TreeOptimizer

Nested classes/interfaces inherited from class harpoon.IR.Tree.Code

Code.TreeFactory

Nested classes/interfaces inherited from class harpoon.ClassFile.HCode

HCode.PrintCallback<HCE extends HCodeElement>

Field Summary

static String

codename

Fields inherited from class harpoon.IR.Tree.Code

frame, parent, tf, tree

Method Summary

HCodeAndMaps<Tree>	clone(HMethod newMethod, Frame frame) Clone this code representation.
static HCodeFactory	codeFactory(Frame frame) Return a code factory for LowQuadNoSSA, using the default code factory for LowQuadNoSSA
static HCodeFactory	codeFactory(HCodeFactory hcf, Frame frame) Return a code factory for OptimizedTreeCode, given a code factory for CanonicalTreeCode.
static HCodeFactory	codeFactory(HCodeFactory hcf, Frame frame, OptimizedTreeCode.TreeOptimizer[] topts) Return a code factory for OptimizedTreeCode, given a code factory for CanonicalTreeCode, a Frame, and a set of optimizations to perform.
String	getName() Return the name of this code view.
TreeDerivation	getTreeDerivation()
boolean	isCanonical() Returns true if this codeview is a canonical representation

Methods inherited from class harpoon.IR.Tree.Code

clone, cloneHelper, elementArrayFactory, getElements, getElementsI, getFrame, getGrapher, getLeafElements, getMethod, getRootElement, getUseDefer, print, remove

Methods inherited from class harpoon.ClassFile.HCode

clone, elementIndexer, getElementsL, print, toString

Methods inherited from class java.lang.Object

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

Field Detail

codename

public static final String codename

See Also:

Constant Field Values

Method Detail

clone

public HCodeAndMaps<Tree> clone(HMethod newMethod,
                                Frame frame)

Clone this code representation. The clone has its own copy of the tree structure.

Specified by:

clone in class Code

getName

public String getName()

Return the name of this code view.

Specified by:

getName in class Code

Returns:

the string "canonical-tree".

isCanonical

public boolean isCanonical()

Description copied from class: Code

Returns true if this codeview is a canonical representation

Specified by:

isCanonical in class Code

Returns:

true

codeFactory

public static HCodeFactory codeFactory(HCodeFactory hcf,
                                       Frame frame)

Return a code factory for OptimizedTreeCode, given a code factory for CanonicalTreeCode. This code factory performs a standard set of optimizations on the CanonicalTreeCode.

codeFactory

public static HCodeFactory codeFactory(HCodeFactory hcf,
                                       Frame frame,
                                       OptimizedTreeCode.TreeOptimizer[] topts)

Return a code factory for OptimizedTreeCode, given a code factory for CanonicalTreeCode, a Frame, and a set of optimizations to perform.

codeFactory

public static HCodeFactory codeFactory(Frame frame)

Return a code factory for LowQuadNoSSA, using the default code factory for LowQuadNoSSA

getTreeDerivation

public TreeDerivation getTreeDerivation()

Specified by:

getTreeDerivation in class Code