org.jikesrvm.compilers.opt.ir.operand

Class OsrTypeInfoOperand

java.lang.Object

org.jikesrvm.compilers.opt.ir.operand.Operand

org.jikesrvm.compilers.opt.ir.operand.OsrTypeInfoOperand

public final class OsrTypeInfoOperand
extends Operand

An OsrTypeInfoOperand object keeps type information of locals and stacks at a byte code index.

Field Summary

Fields

Modifier and Type	Field and Description
byte[]	localTypeCodes The data type.
byte[]	stackTypeCodes

Fields inherited from class org.jikesrvm.compilers.opt.ir.operand.Operand

instruction

Constructor Summary

Constructors

Constructor and Description
OsrTypeInfoOperand(byte[] ltcodes, byte[] stcodes)

Method Summary

Modifier and Type	Method and Description
Operand	copy() Return a new operand that is semantically equivalent to this.
boolean	similar(Operand op) Are two operands semantically equivalent?
String	toString() Returns the string representation of this operand.

Methods inherited from class org.jikesrvm.compilers.opt.ir.operand.Operand

asAddressConstant, asBlock, asBranch, asClassConstant, asCondition, asDoubleConstant, asFloatConstant, asIntConstant, asLocation, asLongConstant, asMemory, asMethod, asNullConstant, asObjectConstant, asRegister, asStackLocation, asStringConstant, asTIBConstant, asType, conservativelyApproximates, getIndexInInstruction, getType, isAddress, isAddressConstant, isBlock, isBranch, isClassConstant, isConstant, isDefinitelyNull, isDouble, isDoubleConstant, isFloat, isFloatConstant, isInt, isIntConstant, isIntLike, isLocation, isLong, isLongConstant, isMemory, isMethod, isMovableObjectConstant, isNullConstant, isObjectConstant, isRef, isRegister, isStackLocation, isStringConstant, isTIBConstant, isTrueGuard, isType, meet

Methods inherited from class java.lang.Object

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

Field Detail

localTypeCodes

public byte[] localTypeCodes

The data type.

stackTypeCodes

public byte[] stackTypeCodes

Constructor Detail

OsrTypeInfoOperand

public OsrTypeInfoOperand(byte[] ltcodes,
                          byte[] stcodes)

Method Detail

copy

public Operand copy()

Description copied from class: Operand

Return a new operand that is semantically equivalent to this.

Specified by:

copy in class Operand

Returns:

a copy of this

similar

public boolean similar(Operand op)

Description copied from class: Operand

Are two operands semantically equivalent?

Specified by:

similar in class Operand

Parameters:

op - other operand

Returns:

true if this and op are semantically equivalent or false if they are not.

toString

public String toString()

Returns the string representation of this operand.

Overrides:

toString in class Object

Returns:

a string representation of this operand.