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comparison graal/Compiler/src/com/sun/c1x/ir/UnsafeGetObject.java @ 2507:9ec15d6914ca

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Pull over of compiler from maxine repository.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Wed, 27 Apr 2011 11:43:22 +0200
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1 /*
2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package com.sun.c1x.ir;
24
25 import com.sun.c1x.debug.*;
26 import com.sun.cri.ci.*;
27
28 /**
29 * The {@code UnsafeGetObject} instruction represents an unsafe read.
30 *
31 * @author Ben L. Titzer
32 */
33 public final class UnsafeGetObject extends UnsafeObjectOp {
34
35 /**
36 * Constructs a new UnsafeGetObject operation.
37 * @param opKind the kind of the operation
38 * @param object the instruction generating the object
39 * @param offset the instruction generating the offset
40 * @param isVolatile {@code true} if this operation is volatile
41 */
42 public UnsafeGetObject(CiKind opKind, Value object, Value offset, boolean isVolatile) {
43 super(opKind, object, offset, false, isVolatile);
44 }
45
46 @Override
47 public void accept(ValueVisitor v) {
48 v.visitUnsafeGetObject(this);
49 }
50
51 @Override
52 public void print(LogStream out) {
53 out.print("UnsafeGetObject.(").print(object()).print(", ").print(offset()).print(')');
54 }
55 }