org.jikesrvm.compilers.opt.ssa

Class SSAOptions

java.lang.Object

org.jikesrvm.compilers.opt.ssa.SSAOptions

public class SSAOptions
extends Object

This module defines parameters to the SSA construction process. This is used to pass information between compiler phases.

IMPORTANT: Phases that change the SSA state MUST update the SSA actual options held by the IR object.

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	abort abort all ssa passes?
private boolean	backwards construct Heap SSA for backwards analysis?
private boolean	excludeGuards ignore guards (validation regs) ?
private Set<Object>	heapTypes restrict Heap SSA to this set of types?
private boolean	heapValid is Heap SSA info valid?
private boolean	insertPEIDeps constuct Heap SSA with PEI deps?
private boolean	insertUsePhis constuct Heap SSA with uPhi functions?
private boolean	scalarsOnly construct SSA only for scalars?
private boolean	scalarValid is Scalar SSA info valid?

Constructor Summary

Constructors

Constructor and Description
SSAOptions() default configuration: just perform forward scalar SSA
SSAOptions(boolean scalarsOnly, boolean backwards, boolean insertUsePhis, Set<Object> heapTypes)

Method Summary

Modifier and Type	Method and Description
(package private) boolean	getAbort()
(package private) boolean	getBackwards()
(package private) boolean	getExcludeGuards()
(package private) Set<Object>	getHeapTypes()
boolean	getHeapValid()
(package private) boolean	getInsertPEIDeps()
(package private) boolean	getInsertUsePhis()
(package private) boolean	getScalarsOnly()
boolean	getScalarValid()
(package private) boolean	satisfies(SSAOptions d) Given a desired set of SSA Options, does this set of SSA Options describe enough information to satisfy the desire?
(package private) void	setAbort(boolean b)
(package private) void	setBackwards(boolean b)
(package private) void	setExcludeGuards(boolean b)
(package private) void	setHeapTypes(Set<Object> s)
(package private) void	setHeapValid(boolean b)
(package private) void	setInsertPEIDeps(boolean b)
(package private) void	setInsertUsePhis(boolean b)
(package private) void	setScalarsOnly(boolean b)
(package private) void	setScalarValid(boolean b)

Methods inherited from class java.lang.Object

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

Field Detail

scalarsOnly

private boolean scalarsOnly

construct SSA only for scalars?

backwards

private boolean backwards

construct Heap SSA for backwards analysis?

insertUsePhis

private boolean insertUsePhis

constuct Heap SSA with uPhi functions?

insertPEIDeps

private boolean insertPEIDeps

constuct Heap SSA with PEI deps?

excludeGuards

private boolean excludeGuards

ignore guards (validation regs) ?

heapTypes

private Set<Object> heapTypes

restrict Heap SSA to this set of types?

heapValid

private boolean heapValid

is Heap SSA info valid?

scalarValid

private boolean scalarValid

is Scalar SSA info valid?

abort

private boolean abort

abort all ssa passes?

Constructor Detail

SSAOptions

SSAOptions(boolean scalarsOnly,
           boolean backwards,
           boolean insertUsePhis,
           Set<Object> heapTypes)

SSAOptions

SSAOptions()

default configuration: just perform forward scalar SSA

Method Detail

getAbort

final boolean getAbort()

setAbort

final void setAbort(boolean b)

getScalarsOnly

final boolean getScalarsOnly()

getBackwards

final boolean getBackwards()

getInsertUsePhis

final boolean getInsertUsePhis()

getInsertPEIDeps

final boolean getInsertPEIDeps()

getExcludeGuards

final boolean getExcludeGuards()

getHeapTypes

final Set<Object> getHeapTypes()

getHeapValid

public final boolean getHeapValid()

getScalarValid

public final boolean getScalarValid()

setScalarsOnly

final void setScalarsOnly(boolean b)

setBackwards

final void setBackwards(boolean b)

setInsertUsePhis

final void setInsertUsePhis(boolean b)

setExcludeGuards

final void setExcludeGuards(boolean b)

setInsertPEIDeps

final void setInsertPEIDeps(boolean b)

setHeapTypes

final void setHeapTypes(Set<Object> s)

setHeapValid

final void setHeapValid(boolean b)

setScalarValid

final void setScalarValid(boolean b)

satisfies

boolean satisfies(SSAOptions d)

Given a desired set of SSA Options, does this set of SSA Options describe enough information to satisfy the desire?

Parameters:

d - the desired SSA options

Returns:

whether this set of options satisfies the desired set