Mercurial > hg > graal-compiler
annotate graal/GraalCompiler/src/com/sun/c1x/graph/BlockUtil.java @ 2596:1c36b17f7ee0
new node layout: AccessMonitor, Invoke
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Thu, 05 May 2011 16:07:00 +0200 |
parents | 4a36a0bd6d18 |
children | 6ab73784566a |
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1 /* |
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2 * Copyright (c) 2009, 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.graph; |
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24 |
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25 import com.sun.c1x.ir.*; |
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26 |
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27 /** |
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28 * The {@code BlockUtil} class contains a number of utilities for manipulating a CFG of basic blocks. |
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29 * |
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30 * @author Ben L. Titzer |
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31 */ |
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32 public class BlockUtil { |
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33 |
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34 /** |
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35 * Disconnects the specified block from all other blocks. |
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36 * @param block the block to remove from the graph |
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37 */ |
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38 public static void disconnectFromGraph(BlockBegin block) { |
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39 for (BlockBegin p : block.blockPredecessors()) { |
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40 p.end().blockSuccessors().remove(block); |
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41 } |
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42 for (BlockBegin s : block.end().blockSuccessors()) { |
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43 s.blockPredecessors().remove(block); |
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44 } |
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45 } |
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46 } |