--- /dev/null 2016-05-31 09:42:47.975716356 -0700 +++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/extended/JavaWriteNode.java 2016-12-09 00:55:33.583369955 -0800 @@ -0,0 +1,73 @@ +/* + * 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.core.common.LocationIdentity; +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.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 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, boolean initialization) { + super(TYPE, address, location, value, barrierType, initialization); + 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; + } +}