Mercurial > hg > truffle
annotate graal/GraalCompiler/src/com/sun/c1x/lir/LIRMemoryBarrier.java @ 2761:d3398b21faf9
Re-enabled CFG optimization (now only on LIRBlock data structure).
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Sat, 21 May 2011 17:46:54 +0200 |
parents | 16b9a8b5ad39 |
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rev | line source |
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1 /* |
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2 * Copyright (c) 2010, 2010, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.sun.c1x.lir; |
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24 |
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25 import com.sun.cri.bytecode.Bytecodes.*; |
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26 import com.sun.cri.ci.*; |
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27 |
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28 /** |
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29 * LIR instruction implementing a {@linkplain MemoryBarriers memory barrier}. |
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30 * |
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31 * @author Doug Simon |
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32 */ |
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33 public class LIRMemoryBarrier extends LIRInstruction { |
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34 |
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35 public final int barriers; |
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36 |
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37 public LIRMemoryBarrier(int barriers) { |
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38 super(LIROpcode.Membar, CiValue.IllegalValue, null, false); |
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39 this.barriers = barriers; |
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40 } |
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41 |
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42 @Override |
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43 public void emitCode(LIRAssembler masm) { |
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44 masm.emitMemoryBarriers(barriers); |
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45 } |
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46 } |