Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/MembarNode.java @ 20074:a7ee2e1f0d4e
remove UnboxNodes without usages (if object is non-null)
author | Lukas Stadler <lukas.stadler@oracle.com> |
---|---|
date | Mon, 30 Mar 2015 13:59:59 +0200 |
parents | 3d0116ec99c5 |
children | a5faa9aafc80 |
line wrap: on
line source
/* * 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.extended; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.common.type.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; /** * Creates a memory barrier. */ @NodeInfo(allowedUsageTypes = {InputType.Memory}) public final class MembarNode extends FixedWithNextNode implements LIRLowerable, MemoryCheckpoint.Single { public static final NodeClass<MembarNode> TYPE = NodeClass.create(MembarNode.class); protected final int barriers; public MembarNode(int barriers) { super(TYPE, StampFactory.forVoid()); this.barriers = barriers; } @Override public LocationIdentity getLocationIdentity() { return LocationIdentity.any(); } @Override public void generate(NodeLIRBuilderTool generator) { generator.getLIRGeneratorTool().emitMembar(barriers); } @NodeIntrinsic public static native void memoryBarrier(@ConstantNodeParameter int barriers); }