org.jikesrvm.compilers.opt.ir.ppc

Class PhysicalDefUse

java.lang.Object

org.jikesrvm.compilers.opt.ir.ppc.PhysicalDefUse

public final class PhysicalDefUse
extends Object

This class provides utilities to record defs and uses of physical registers by IR operators.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PhysicalDefUse.PDUEnumeration A class to enumerate physical registers based on a code.

Field Summary

Fields

Modifier and Type	Field and Description
static int	mask
private static int	maskALL
static int	maskC0
static int	maskC0_32 C0 mask on 32bit otherwise no mask
static int	maskC0_XER
static int	maskcallDefs
static int	maskcallUses
static int	maskCTR
private static int	maskHIGH
static int	maskIEEEMagicUses
static int	maskJTOC
static int	maskJTOC_CTR
static int	maskJTOC_LR
static int	maskLR
static int	maskTR
static int	maskTSPDefs
static int	maskTSPUses
static int	maskXER
static int	maskXER_32 XER mask on 32bit otherwise no mask

Constructor Summary

Constructors

Constructor and Description
PhysicalDefUse()

Method Summary

Modifier and Type	Method and Description
static PhysicalDefUse.PDUEnumeration	enumerate(int code, IR ir)
static PhysicalDefUse.PDUEnumeration	enumerateAllImplicitDefUses(IR ir)
static String	getString(int code)

Methods inherited from class java.lang.Object

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

Field Detail

mask

public static final int mask

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Constant Field Values

maskC0

public static final int maskC0

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Constant Field Values

maskXER

public static final int maskXER

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Constant Field Values

maskLR

public static final int maskLR

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Constant Field Values

maskJTOC

public static final int maskJTOC

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Constant Field Values

maskCTR

public static final int maskCTR

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Constant Field Values

maskTR

public static final int maskTR

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Constant Field Values

maskHIGH

private static final int maskHIGH

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Constant Field Values

maskALL

private static final int maskALL

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Constant Field Values

maskC0_XER

public static final int maskC0_XER

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Constant Field Values

maskJTOC_LR

public static final int maskJTOC_LR

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Constant Field Values

maskJTOC_CTR

public static final int maskJTOC_CTR

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Constant Field Values

maskcallDefs

public static final int maskcallDefs

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Constant Field Values

maskcallUses

public static final int maskcallUses

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Constant Field Values

maskIEEEMagicUses

public static final int maskIEEEMagicUses

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Constant Field Values

maskTSPDefs

public static final int maskTSPDefs

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Constant Field Values

maskTSPUses

public static final int maskTSPUses

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Constant Field Values

maskXER_32

public static final int maskXER_32

XER mask on 32bit otherwise no mask

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Constant Field Values

maskC0_32

public static final int maskC0_32

C0 mask on 32bit otherwise no mask

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Constant Field Values

Constructor Detail

PhysicalDefUse

public PhysicalDefUse()

Method Detail

getString

public static String getString(int code)

Parameters:

code - register code

Returns:

a string representation of the physical registers encoded by an integer

enumerate

public static PhysicalDefUse.PDUEnumeration enumerate(int code,
                                                      IR ir)

Parameters:

code - an integer that encodes a set of physical registers

ir - the governing IR

Returns:

an enumeration of the physical registers embodied by a code

enumerateAllImplicitDefUses

public static PhysicalDefUse.PDUEnumeration enumerateAllImplicitDefUses(IR ir)

Parameters:

ir - the governing IR

Returns:

an enumeration of all physical registers that code be implicitly defed/used