Package jminusminus

Class NHIRPhiFunction

java.lang.Object

jminusminus.NHIRInstruction

jminusminus.NHIRPhiFunction

class NHIRPhiFunction
extends NHIRInstruction

HIR instruction representing phi functions.

Field Summary

Fields inherited from class jminusminus.NHIRInstruction

block, hirMnemonic, id, lir, lType, sType

Constructor Summary

Constructors

Constructor	Description
NHIRPhiFunction(NBasicBlock block, int id, ArrayList<Integer> arguments, int local)	Constructs an NHIRPhiFunction object.

Method Summary

Modifier and Type	Method	Description
ArrayList<Integer>	getArguments()	Returns a list containing the ids of arguments for this phi function.
int	getLocal()	Returns the local variable index for this phi function.
void	inferType()	Infers type for this phi function, which is essentially the type of the arguments.
NLIRInstruction	toLir()	Converts and returns a low-level representation (LIR) of this HIR instruction.
String	toString()	Returns a string representation of this instruction.

Methods inherited from class jminusminus.NHIRInstruction

equals, id

Methods inherited from class java.lang.Object

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

Constructor Details

NHIRPhiFunction

public NHIRPhiFunction(NBasicBlock block,
 int id,
 ArrayList<Integer> arguments,
 int local)

Constructs an NHIRPhiFunction object.

Parameters:

block - enclosing block.

id - identifier of the instruction.

arguments - list of HIR ids of arguments for the phi function.

local - local variable index.

Method Details

getArguments

public ArrayList<Integer> getArguments()

Returns a list containing the ids of arguments for this phi function.

Returns:

a list containing the ids of arguments for this phi function.

getLocal

public int getLocal()

Returns the local variable index for this phi function.

Returns:

the local variable index for this phi function.

inferType

public void inferType()

Infers type for this phi function, which is essentially the type of the arguments.

toLir

public NLIRInstruction toLir()

Converts and returns a low-level representation (LIR) of this HIR instruction. Also adds the returned LIR instruction to the list of LIR instructions for the block containing this instruction, along with any other intermediate LIR instructions needed.

Overrides:

toLir in class NHIRInstruction

Returns:

the LIR instruction corresponding to this HIR instruction.

toString

public String toString()

Returns a string representation of this instruction.

Overrides:

toString in class NHIRInstruction

Returns:

a string representation of this instruction.