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comparison graal/Compiler/src/com/sun/c1x/lir/LIRMemoryBarrier.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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2506:4a3bf8a5bf41 2507:9ec15d6914ca
1 /*
2 * Copyright (c) 2010, 2010, 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.lir;
24
25 import com.sun.cri.bytecode.Bytecodes.*;
26 import com.sun.cri.ci.*;
27
28 /**
29 * LIR instruction implementing a {@linkplain MemoryBarriers memory barrier}.
30 *
31 * @author Doug Simon
32 */
33 public class LIRMemoryBarrier extends LIRInstruction {
34
35 public final int barriers;
36
37 public LIRMemoryBarrier(int barriers) {
38 super(LIROpcode.Membar, CiValue.IllegalValue, null, false);
39 this.barriers = barriers;
40 }
41
42 @Override
43 public void emitCode(LIRAssembler masm) {
44 masm.emitMemoryBarriers(barriers);
45 }
46 }