| /* |
| * Copyright (c) 2014, 2016, 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 org.graalvm.compiler.nodes.extended; |
| |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.nodeinfo.NodeInfo; |
| import org.graalvm.compiler.nodes.StateSplit; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.memory.AbstractWriteNode; |
| import org.graalvm.compiler.nodes.memory.MemoryAccess; |
| import org.graalvm.compiler.nodes.memory.MemoryCheckpoint; |
| import org.graalvm.compiler.nodes.memory.address.AddressNode; |
| import org.graalvm.compiler.nodes.spi.Lowerable; |
| import org.graalvm.compiler.nodes.spi.LoweringTool; |
| import jdk.internal.vm.compiler.word.LocationIdentity; |
| |
| import jdk.vm.ci.meta.JavaKind; |
| |
| /** |
| * Write a raw memory location according to Java field or array write semantics. It will perform |
| * write barriers, implicit conversions and optionally oop compression. |
| */ |
| @NodeInfo(nameTemplate = "JavaWrite#{p#location/s}") |
| public final class JavaWriteNode extends AbstractWriteNode implements Lowerable, StateSplit, MemoryAccess, MemoryCheckpoint.Single { |
| |
| public static final NodeClass<JavaWriteNode> TYPE = NodeClass.create(JavaWriteNode.class); |
| protected final JavaKind writeKind; |
| protected final boolean compressible; |
| |
| public JavaWriteNode(JavaKind writeKind, AddressNode address, LocationIdentity location, ValueNode value, BarrierType barrierType, boolean compressible) { |
| super(TYPE, address, location, value, barrierType); |
| this.writeKind = writeKind; |
| this.compressible = compressible; |
| } |
| |
| @Override |
| public void lower(LoweringTool tool) { |
| tool.getLowerer().lower(this, tool); |
| } |
| |
| @Override |
| public boolean canNullCheck() { |
| return true; |
| } |
| |
| public JavaKind getWriteKind() { |
| return writeKind; |
| } |
| |
| public boolean isCompressible() { |
| return compressible; |
| } |
| } |