Overview  Package   Class  Use  Tree  Serialized  Deprecated  Index  Help 
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES    
SUMMARY: NESTED | FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD

org.jikesrvm.compilers.opt.ir.operand
Class TIBConstantOperand

java.lang.Object
  extended by org.jikesrvm.compilers.opt.ir.operand.Operand
      extended by org.jikesrvm.compilers.opt.ir.operand.ConstantOperand
          extended by org.jikesrvm.compilers.opt.ir.operand.TIBConstantOperand

public final class TIBConstantOperand
extends ConstantOperand

Represents a constant TIB operand, found for example, from an ObjectConstantOperand.

NB: we don't use an object constant operand because:

  1. TIBs don't form part of the object literals
  2. Loads on the contents of a TIB can be turned into constant moves, whereas for arrays in general this isn't the case.

NB: we don't use TypeOperand as the type of the operand is RVMType, whereas a TIBs type is Object[].

See Also:
Operand

Field Summary
 RVMType value
          The non-null type for this TIB
 
Fields inherited from class org.jikesrvm.compilers.opt.ir.operand.Operand
instruction
 
Constructor Summary
TIBConstantOperand(RVMType v)
          Construct a new TIB constant operand
 
Method Summary
 Operand copy()
          Return a new operand that is semantically equivalent to this.
 TypeReference getType()
          Return the TypeReference of the value represented by the operand.
 boolean isRef()
          Does the operand represent a value of the reference data type?
 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, isAddress, isAddressConstant, isBlock, isBranch, isClassConstant, isConstant, isDefinitelyNull, isDouble, isDoubleConstant, isFloat, isFloatConstant, isInt, isIntConstant, isIntLike, isLocation, isLong, isLongConstant, isMemory, isMethod, isMovableObjectConstant, isNullConstant, isObjectConstant, 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

value

public final RVMType value
The non-null type for this TIB

Constructor Detail

TIBConstantOperand

public TIBConstantOperand(RVMType v)
Construct a new TIB constant operand

Parameters:
v - the type of this TIB
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

getType

public TypeReference getType()
Description copied from class: Operand
Return the TypeReference of the value represented by the operand.

Overrides:
getType in class Operand
Returns:
TypeReference.TIB

isRef

public boolean isRef()
Description copied from class: Operand
Does the operand represent a value of the reference data type?

Overrides:
isRef in class Operand
Returns:
true

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.
Overview  Package   Class  Use  Tree  Serialized  Deprecated  Index  Help 
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES    
SUMMARY: NESTED | FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD