org.jikesrvm.compilers.opt.ir

Class GenericPhysicalRegisterTools

java.lang.Object

org.jikesrvm.compilers.opt.ir.IRTools

org.jikesrvm.compilers.opt.ir.GenericPhysicalRegisterTools

Direct Known Subclasses:

BURS_Common_Helpers, PhysicalRegisterTools

public abstract class GenericPhysicalRegisterTools
extends IRTools

This abstract class provides a set of useful architecture-independent methods for manipulating physical registers for an IR.

Constructor Summary

Constructors

Constructor and Description
GenericPhysicalRegisterTools()

Method Summary

Modifier and Type	Method and Description
protected RegisterOperand	A(int regnum) Create an address register operand for a given physical GPR.
(package private) RegisterOperand	D(int regnum) Create a double register operand for a given physical FPR.
(package private) RegisterOperand	F(int regnum) Create a float register operand for a given physical FPR.
abstract IR	getIR()
(package private) static boolean	hasPhysicalOperand(Instruction s)
protected RegisterOperand	I(int regnum) Create an integer register operand for a given physical GPR.
(package private) RegisterOperand	L(int regnum) Create a long register operand for a given GPR number.

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

A, AC, AC, CPOS, CR, D, DC, defDoublesAsUse, definedIn, F, FC, getCondMoveOp, getDefaultOperand, getLoadOp, getLoadOp, getMoveOp, getStoreOp, getStoreOp, I, IC, insertInstructionsAfter, L, LC, makeBlockOnEdge, mayBeVolatileFieldLoad, moveInstruction, moveIntoRegister, moveIntoRegister, nonPEIGC, offsetOperand, TG, usedIn, useDoublesAsDef

Methods inherited from class java.lang.Object

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

Constructor Detail

GenericPhysicalRegisterTools

public GenericPhysicalRegisterTools()

Method Detail

getIR

public abstract IR getIR()

A

protected final RegisterOperand A(int regnum)

Create an address register operand for a given physical GPR. To be used in passthrough expressions like

    ... Load.create(INT_LOAD, I(2), A(1), IC(4)) ...
 

Parameters:

regnum - the given GPR register number

Returns:

integer register operand

I

protected final RegisterOperand I(int regnum)

Create an integer register operand for a given physical GPR. To be used in passthrough expressions like

    ... Load.create(INT_LOAD, I(2), A(1), IC(4)) ...
 

Parameters:

regnum - the given GPR register number

Returns:

integer register operand

F

final RegisterOperand F(int regnum)

Create a float register operand for a given physical FPR. To be used in passthrough expressions like

    ... Load.create(FLOAT_LOAD, F(2), A(1), IC(4)) ...
 

Parameters:

regnum - the given DOUBLE register number

Returns:

float register operand

D

final RegisterOperand D(int regnum)

Create a double register operand for a given physical FPR. To be used in passthrough expressions like

    ... Load.create(DOUBLE_LOAD, D(2), A(1), IC(4)) ...
 

Parameters:

regnum - the given double register number

Returns:

double register operand

L

final RegisterOperand L(int regnum)

Create a long register operand for a given GPR number. To be used in passthrough expressions like

    ... Load.create(LONG_LOAD, L(2), A(1), IC(4)) ...
 

Parameters:

regnum - the given GPR register number

Returns:

long register operand

hasPhysicalOperand

static boolean hasPhysicalOperand(Instruction s)

Parameters:

s - the instruction to check

Returns:

true if the instruction has an operand that contains a physical register