Package 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	Description
NLIRMove(NBasicBlock block, int id, NLIRInstruction from, NLIRInstruction to)	Constructs an NLIRMove object.
NLIRMove(NBasicBlock block, int id, NRegister from, NRegister to)	Constructs an NLIRMove object.

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Details

NLIRMove

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

Constructs an NLIRMove object.

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)

Constructs an NLIRMove object.

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 Details

allocatePhysicalRegisters

public void allocatePhysicalRegisters()

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)

Translates this LIR instruction into SPIM and writes it out to the specified output stream.

Overrides:

toSpim in class NLIRInstruction

Parameters:

out - output stream for SPIM code.

toString

public String toString()

Returns a string representation of this instruction.

Overrides:

toString in class NLIRInstruction

Returns:

a string representation of this instruction.