coins.opt
Class ConstFolding

java.lang.Object
  coins.opt.ConstFolding

Direct Known Subclasses:

ConstFoldingHir

public class ConstFolding

extends java.lang.Object

Constant folding basic logic class.

Field Summary

FlowRoot	flowRoot
(package private) FlowResults	fResults
protected SubpFlow	fSubpFlow
(package private) static int	JAVA_BYTE_SIZE
(package private) static int	JAVA_CHAR_SIZE
(package private) static int	JAVA_INT_SIZE
(package private) static int	JAVA_LONG_SIZE
(package private) static int	JAVA_SHORT_SIZE

Constructor Summary

ConstFolding(FlowResults pResults)
ConstFolding Creates new ConstFolding

Method Summary

boolean	doBBlock(BBlock pBBlock) Performs constant folding for the given BBlock
boolean	doSubp(SubpFlow pSubpFlow) Performs constant folding for the subprogram that corresponds to the given SubpFlow.

Methods inherited from class java.lang.Object

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

Field Detail

JAVA_BYTE_SIZE

static final int JAVA_BYTE_SIZE

See Also:

Constant Field Values

JAVA_CHAR_SIZE

static final int JAVA_CHAR_SIZE

See Also:

Constant Field Values

JAVA_SHORT_SIZE

static final int JAVA_SHORT_SIZE

See Also:

Constant Field Values

JAVA_INT_SIZE

static final int JAVA_INT_SIZE

See Also:

Constant Field Values

JAVA_LONG_SIZE

static final int JAVA_LONG_SIZE

See Also:

Constant Field Values

flowRoot

public final FlowRoot flowRoot

fResults

FlowResults fResults

fSubpFlow

protected SubpFlow fSubpFlow

Constructor Detail

ConstFolding

public ConstFolding(FlowResults pResults)

ConstFolding Creates new ConstFolding

Method Detail

doSubp

public boolean doSubp(SubpFlow pSubpFlow)

Performs constant folding for the subprogram that corresponds to the given SubpFlow.

Returns:

true if the subprogram changed (optimized).

doBBlock

public boolean doBBlock(BBlock pBBlock)

Performs constant folding for the given BBlock

Returns:

true if the underlying IR changed (optimized).