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view graal/GraalCompiler/src/com/sun/c1x/graph/BlockUtil.java @ 2602:0c6564c254af
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author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Fri, 06 May 2011 10:25:37 +0200 |
parents | 4a36a0bd6d18 |
children | 6ab73784566a |
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/* * 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.graph; import com.sun.c1x.ir.*; /** * The {@code BlockUtil} class contains a number of utilities for manipulating a CFG of basic blocks. * * @author Ben L. Titzer */ public class BlockUtil { /** * Disconnects the specified block from all other blocks. * @param block the block to remove from the graph */ public static void disconnectFromGraph(BlockBegin block) { for (BlockBegin p : block.blockPredecessors()) { p.end().blockSuccessors().remove(block); } for (BlockBegin s : block.end().blockSuccessors()) { s.blockPredecessors().remove(block); } } }