--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.max.graal.compiler/src/com/sun/c1x/lir/LIROp2.java	Wed Jun 08 08:42:25 2011 +0200
@@ -0,0 +1,184 @@
+/*
+ * 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
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.sun.c1x.lir;
+
+import com.sun.c1x.ir.*;
+import com.sun.cri.ci.*;
+
+/**
+ * The {@code LIROp2} class represents a LIR instruction that performs an operation on two operands.
+ *
+ * @author Marcelo Cintra
+ * @author Thomas Wuerthinger
+ * @author Ben L. Titzer
+ */
+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(OperandFormatter operandFmt) {
+        if (code == LIROpcode.Cmove) {
+            return condition.toString() + " " + super.operationString(operandFmt);
+        }
+        return super.operationString(operandFmt);
+    }
+}
+