--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/GraalCompiler/src/com/sun/c1x/ir/UnsafeObjectOp.java	Wed Apr 27 11:50:44 2011 +0200
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2009, 2010, 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.ir;
+
+import com.sun.cri.ci.*;
+
+/**
+ * The {@code UnsafeObjectOp} class is the base of all unsafe object instructions.
+ *
+ * @author Ben L. Titzer
+ */
+public abstract class UnsafeObjectOp extends UnsafeOp {
+
+    Value object;
+    Value offset;
+    final boolean isVolatile;
+
+    /**
+     * Creates a new UnsafeObjectOp instruction.
+     * @param opKind the kind of the operation
+     * @param object the instruction generating the object
+     * @param offset the instruction generating the index
+     * @param isStore {@code true} if this is a store operation
+     * @param isVolatile {@code true} if the operation is volatile
+     */
+    public UnsafeObjectOp(CiKind opKind, Value object, Value offset, boolean isStore, boolean isVolatile) {
+        super(opKind, isStore);
+        this.object = object;
+        this.offset = offset;
+        this.isVolatile = isVolatile;
+    }
+
+    /**
+     * Gets the instruction that generates the object.
+     * @return the instruction that produces the object
+     */
+    public Value object() {
+        return object;
+    }
+
+    /**
+     * Gets the instruction that generates the offset.
+     * @return the instruction generating the offset
+     */
+    public Value offset() {
+        return offset;
+    }
+
+    /**
+     * Checks whether this is a volatile operation.
+     * @return {@code true} if this operation is volatile
+     */
+    public boolean isVolatile() {
+        return isVolatile;
+    }
+
+    /**
+     * Iterates over the input values of this instruction.
+     * @param closure the closure to apply
+     */
+    @Override
+    public void inputValuesDo(ValueClosure closure) {
+        super.inputValuesDo(closure);
+        object = closure.apply(object);
+        offset = closure.apply(offset);
+    }
+}