org.jikesrvm.compilers.opt.ir.ia32

Class RegisterPool

java.lang.Object

org.jikesrvm.compilers.opt.ir.AbstractRegisterPool

org.jikesrvm.compilers.opt.ir.GenericRegisterPool

org.jikesrvm.compilers.opt.ir.ia32.RegisterPool

public final class RegisterPool
extends GenericRegisterPool

Pool of symbolic registers.

Intel specific implementation where JTOC is stored in the processor object and accessed through the processor register.

See Also:

Register

Field Summary

Fields inherited from class org.jikesrvm.compilers.opt.ir.GenericRegisterPool

physical

Fields inherited from class org.jikesrvm.compilers.opt.ir.AbstractRegisterPool

currentNum

Constructor Summary

Constructors

Constructor and Description
RegisterPool(RVMMethod meth) Initializes a new register pool for the method meth.

Method Summary

Modifier and Type	Method and Description
Operand	makeJTOCOp() Return a constant operand that is the base address of the JTOC.
Operand	makeTocOp()

Methods inherited from class org.jikesrvm.compilers.opt.ir.GenericRegisterPool

getFP, getNumberOfSymbolicRegisters, getPhysicalRegisterSet, getTotalNumberOfRegisters, makeFPOp, makeTROp

Methods inherited from class org.jikesrvm.compilers.opt.ir.AbstractRegisterPool

getAddress, getCondition, getDouble, getFirstSymbolicRegister, getFloat, getInteger, getLong, getReg, getReg, getReg, getSecondReg, getValidation, makeTemp, makeTemp, makeTemp, makeTempAddress, makeTempBoolean, makeTempCondition, makeTempDouble, makeTempFloat, makeTempInt, makeTempLong, makeTempOffset, makeTempValidation, release, removeRegister

Methods inherited from class java.lang.Object

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

Constructor Detail

RegisterPool

public RegisterPool(RVMMethod meth)

Initializes a new register pool for the method meth.

Parameters:

meth - the RVMMethod of the outermost method

Method Detail

makeJTOCOp

public Operand makeJTOCOp()

Return a constant operand that is the base address of the JTOC.

TODO: This really should be returning an AddressConstantOperand, but that causes rippling changes in BURS that are larger than we want to deal with right now.

Specified by:

makeJTOCOp in class GenericRegisterPool

Returns:

an operand that holds the JTOC

makeTocOp

public Operand makeTocOp()

Specified by:

makeTocOp in class GenericRegisterPool

Returns:

a temporary that represents the JTOC register (as an Object)