jminusminus

Class NHIRConditionalJump

java.lang.Object

jminusminus.NHIRInstruction

jminusminus.NHIRConditionalJump

 class NHIRConditionalJump
extends NHIRInstruction

HIR instruction representing an conditional jump instructions in JVM.

Field Summary

Fields

Modifier and Type	Field and Description
int	lhs Lhs HIR id.
NBasicBlock	onFalseDestination Block to jump to on false.
NBasicBlock	onTrueDestination Block to jump to on true.
int	opcode Test expression opcode.
int	rhs Rhs HIR id.

Fields inherited from class jminusminus.NHIRInstruction

block, hirMnemonic, id, lir, lType, sType

Constructor Summary

Constructors

Constructor and Description
NHIRConditionalJump(NBasicBlock block, int id, int lhs, int rhs, int opcode, NBasicBlock onTrueDestination, NBasicBlock onFalseDestination) Construct an NHIRConditionalJump instruction.

Method Summary

Methods

Modifier and Type	Method and Description
NLIRInstruction	toLir() Convert and return a low-level representation (LIR) of this HIR instruction.
String	toString() Return 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

Field Detail

lhs

public int lhs

Lhs HIR id.

rhs

public int rhs

Rhs HIR id.

opcode

public int opcode

Test expression opcode.

onTrueDestination

public NBasicBlock onTrueDestination

Block to jump to on true.

onFalseDestination

public NBasicBlock onFalseDestination

Block to jump to on false.

Constructor Detail

NHIRConditionalJump

public NHIRConditionalJump(NBasicBlock block,
                   int id,
                   int lhs,
                   int rhs,
                   int opcode,
                   NBasicBlock onTrueDestination,
                   NBasicBlock onFalseDestination)

Construct an NHIRConditionalJump instruction.

Parameters:

block - enclosing block.

id - identifier of the instruction.

lhs - Lhs HIR id.

rhs - Rhs HIR id.

opcode - opcode in the test.

onTrueDestination - block to jump to on true.

onFalseDestination - block to jump to on false.

Method Detail

toLir

public NLIRInstruction toLir()

Description copied from class: NHIRInstruction

Convert and return 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:

LIR instruction corresponding to this HIR instruction.

toString

public String toString()

Description copied from class: NHIRInstruction

Return a string representation of this instruction.

Overrides:

toString in class NHIRInstruction

Returns:

string representation of this instruction.