Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/memory/MemoryAnchorNode.java @ 21522:28cbfacd0518
Merge
author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
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date | Thu, 28 May 2015 17:44:05 +0200 |
parents | graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/MemoryAnchorNode.java@a4aa2116cfe0 graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/MemoryAnchorNode.java@cba35d171cd1 |
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/* * Copyright (c) 2014, 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.compiler.common.type.*; import com.oracle.graal.graph.*; import com.oracle.graal.graph.spi.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodeinfo.StructuralInput.Memory; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; @NodeInfo(allowedUsageTypes = {InputType.Memory}) public final class MemoryAnchorNode extends FixedWithNextNode implements LIRLowerable, MemoryNode, Canonicalizable { public static final NodeClass<MemoryAnchorNode> TYPE = NodeClass.create(MemoryAnchorNode.class); public MemoryAnchorNode() { super(TYPE, StampFactory.forVoid()); } public void generate(NodeLIRBuilderTool generator) { // Nothing to emit, since this node is used for structural purposes only. } @Override public Node canonical(CanonicalizerTool tool) { return tool.allUsagesAvailable() && hasNoUsages() ? null : this; } @NodeIntrinsic public static native Memory anchor(); }