Mercurial > hg > graal-compiler
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/spi/Virtualizable.java @ 22349:681c04ce9db2
PEA refactoring: simplify VirtualizerTool, arrays instead of HashMaps, route all modifications through BlockState, copy-on-write in BlockState
author | Lukas Stadler <lukas.stadler@oracle.com> |
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date | Fri, 24 Jul 2015 16:20:56 +0200 |
parents | e8dc090e167f |
children |
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/* * Copyright (c) 2011, 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.oracle.graal.nodes.spi; /** * This interface allows a node to convey information about what its effect would be if some of its * inputs were virtualized. The {@link #virtualize(VirtualizerTool)} method will only be called for * nodes that have some interaction with virtualized nodes. However, the virtualized nodes might * have been re-materialized in the meantime. */ public interface Virtualizable { /** * A node class can implement this method to convey information about what its effect would be * if some of its inputs were virtualized. All modifications must be made through the supplied * tool, and not directly on the node, because by the time this method is called the * virtualized/non-virtualized state is still speculative and might not hold because of loops, * etc. * * @param tool the tool used to describe the effects of this node */ void virtualize(VirtualizerTool tool); }