Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/memory/MemoryCheckpoint.java @ 21556:48c1ebd24120
renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 27 May 2015 00:36:16 +0200 |
parents | cba35d171cd1 |
children | 47bebae7454f |
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/* * Copyright (c) 2011, 2015, 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.memory; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; import com.oracle.jvmci.meta.*; /** * This interface marks subclasses of {@link FixedNode} that kill a set of memory locations * represented by location identities (i.e. change a value at one or more locations that belong to * these location identities). */ public interface MemoryCheckpoint extends MemoryNode { FixedNode asNode(); interface Single extends MemoryCheckpoint { /** * This method is used to determine which memory location is killed by this node. Returning * the special value {@link LocationIdentity#any()} will kill all memory locations. * * @return the identity of the location killed by this node. */ LocationIdentity getLocationIdentity(); } interface Multi extends MemoryCheckpoint { /** * This method is used to determine which set of memory locations is killed by this node. * Returning the special value {@link LocationIdentity#any()} will kill all memory * locations. * * @return the identities of all locations killed by this node. */ LocationIdentity[] getLocationIdentities(); } public class TypeAssertion { public static boolean correctType(Node node) { return !(node instanceof MemoryCheckpoint) || (node instanceof MemoryCheckpoint.Single ^ node instanceof MemoryCheckpoint.Multi); } } }