GenericPhysicalRegisterTools (Jikes RVM API)

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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:: PhysicalRegisterTools

public abstract class GenericPhysicalRegisterTools
extends IRTools
extends IRTools

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

Constructor Summary
`GenericPhysicalRegisterTools()`

Method Summary
`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()` Return the governing IR.
`(package private) static boolean`	`hasPhysicalOperand(Instruction s)` Does instruction s have an operand that contains a physical register?
`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, 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()

Return the governing IR.

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)

Does instruction s have an operand that contains a physical register?