/*
* Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package com.sun.c1x.lir;
import com.sun.c1x.ir.*;
import com.sun.cri.ci.*;
import com.sun.cri.ci.CiValue.Formatter;
/**
* The {@code LIROp2} class represents a LIR instruction that performs an operation on two operands.
*/
public class LIROp2 extends LIRInstruction {
final Condition condition;
/**
* Constructs a new LIROp2 instruction.
*
* @param opcode the instruction's opcode
* @param condition the instruction's condition
* @param opr1 the first input operand
* @param opr2 the second input operand
* @param info the object holding information needed to emit debug information
*/
public LIROp2(LIROpcode opcode, Condition condition, CiValue opr1, CiValue opr2, LIRDebugInfo info) {
super(opcode, CiValue.IllegalValue, info, false, 0, 0, opr1, opr2);
this.condition = condition;
assert opcode == LIROpcode.Cmp : "Instruction opcode should be of type LIROpcode.Cmp";
}
/**
* Constructs a new LIROp2 instruction.
*
* @param opcode the instruction's opcode
* @param condition the instruction's condition
* @param opr1 the first input operand
* @param opr2 the second input operand
* @param result the operand that holds the result of this instruction
*/
public LIROp2(LIROpcode opcode, Condition condition, CiValue opr1, CiValue opr2, CiValue result) {
super(opcode, result, null, false, 0, 0, opr1, opr2);
this.condition = condition;
assert opcode == LIROpcode.Cmove : "Instruction opcode should be of type LIROpcode.Cmove";
}
/**
* Constructs a new LIROp2 instruction.
*
* @param opcode the instruction's opcode
* @param opr1 the first input operand
* @param opr2 the second input operand
* @param result the operand that holds the result of this instruction
* @param info the object holding information needed to emit debug information
* @param kind the kind of this instruction
*/
public LIROp2(LIROpcode opcode, CiValue opr1, CiValue opr2, CiValue result, LIRDebugInfo info, CiKind kind, boolean hasCall) {
super(opcode, result, info, hasCall, 0, 0, opr1, opr2);
this.condition = null;
assert opcode != LIROpcode.Cmp && isInRange(opcode, LIROpcode.BeginOp2, LIROpcode.EndOp2) : "The " + opcode + " is not a valid LIROp2 opcode";
}
/**
* Constructs a new LIROp2 instruction.
*
* @param opcode the instruction's opcode
* @param opr1 the instruction's first operand
* @param opr2 the instruction's second operand
* @param result the operand that holds the result of this instruction
* @param info the object holding information needed to emit debug information
*/
public LIROp2(LIROpcode opcode, CiValue opr1, CiValue opr2, CiValue result, LIRDebugInfo info) {
this(opcode, opr1, opr2, result, info, CiKind.Illegal, false);
}
/**
* Constructs a new LIROp2 instruction.
*
* @param opcode the instruction's opcode
* @param opr1 the instruction's first operand
* @param opr2 the instruction's second operand
* @param result the operand that holds the result of this instruction
*/
public LIROp2(LIROpcode opcode, CiValue opr1, CiValue opr2, CiValue result) {
this(opcode, opr1, opr2, result, (LIRDebugInfo) null);
}
/**
* Constructs a new LIROp2 instruction.
*
* @param opcode the instruction's opcode
* @param opr1 the first input operand
* @param opr2 the second input operand
* @param result the operand that holds the result of this instruction
* @param tmp the temporary operand used by this instruction
*/
public LIROp2(LIROpcode opcode, CiValue opr1, CiValue opr2, CiValue result, CiValue tmp) {
super(opcode, result, null, false, 0, 1, opr1, opr2, tmp);
this.condition = null;
assert opcode != LIROpcode.Cmp && isInRange(opcode, LIROpcode.BeginOp2, LIROpcode.EndOp2) : "The " + opcode + " is not a valid LIROp2 opcode";
}
/**
* Gets the first input operand.
*
* @return opr1 the first input operand
*/
public CiValue operand1() {
return operand(0);
}
/**
* Gets the second input operand.
*
* @return opr2 the second input operand
*/
public CiValue operand2() {
return operand(1);
}
/**
* Gets the temporary operand of this instruction.
*
* @return tmp the temporary operand of this instruction
*
*/
public CiValue tmp() {
return operand(2);
}
/**
* Gets the condition of this instruction, if it is a Cmp or Cmove LIR instruction.
*
* @return condition the condition of this instruction
*/
public Condition condition() {
assert code == LIROpcode.Cmp || code == LIROpcode.Cmove : "Field access only valid for cmp and cmove";
return condition;
}
/**
* Emit target assembly code for this instruction.
*
* @param masm the target assembler
*/
@Override
public void emitCode(LIRAssembler masm) {
masm.emitOp2(this);
}
/**
* Prints this instruction.
*/
@Override
public String operationString(Formatter operandFmt) {
if (code == LIROpcode.Cmove) {
return condition.toString() + " " + super.operationString(operandFmt);
}
return super.operationString(operandFmt);
}
}