jminusminus

Class NLIRMove

java.lang.Object

jminusminus.NLIRInstruction

jminusminus.NLIRMove

 class NLIRMove
extends NLIRInstruction

LIR move instruction.

Field Summary

Fields inherited from class jminusminus.NLIRInstruction

block, id, lirMnemonic, reads, write

Constructor Summary

Constructors

Constructor and Description
NLIRMove(NBasicBlock block, int id, NLIRInstruction from, NLIRInstruction to) Construct an NLIRMove instruction.
NLIRMove(NBasicBlock block, int id, NRegister from, NRegister to) Construct an NLIRMove instruction.

Method Summary

Methods

Modifier and Type	Method and Description
void	allocatePhysicalRegisters() Replace references to virtual registers in this LIR instruction with references to physical registers.
void	toSpim(PrintWriter out) Translate this LIR instruction into SPIM and write it out to the specified output stream.
String	toString() Return a string representation of this instruction.

Methods inherited from class java.lang.Object

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

Constructor Detail

NLIRMove

public NLIRMove(NBasicBlock block,
        int id,
        NLIRInstruction from,
        NLIRInstruction to)

Construct an NLIRMove instruction.

Parameters:

block - enclosing block.

id - identifier of the instruction.

from - LIR to move from.

to - LIR to move to.

NLIRMove

public NLIRMove(NBasicBlock block,
        int id,
        NRegister from,
        NRegister to)

Construct an NLIRMove instruction.

Parameters:

block - enclosing block.

id - identifier of the instruction.

from - register (virtual or physical) to move from.

to - register (virtual or physical) to move to.

Method Detail

allocatePhysicalRegisters

public void allocatePhysicalRegisters()

Description copied from class: NLIRInstruction

Replace references to virtual registers in this LIR instruction with references to physical registers.

Overrides:

allocatePhysicalRegisters in class NLIRInstruction

toSpim

public void toSpim(PrintWriter out)

Description copied from class: NLIRInstruction

Translate this LIR instruction into SPIM and write it out to the specified output stream.

Overrides:

toSpim in class NLIRInstruction

Parameters:

out - output stream for SPIM code.

toString

public String toString()

Description copied from class: NLIRInstruction

Return a string representation of this instruction.

Overrides:

toString in class NLIRInstruction

Returns:

string representation of this instruction.