| /* |
| * 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.java; |
| |
| import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_10; |
| import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_4; |
| |
| import org.graalvm.compiler.core.common.LocationIdentity; |
| import org.graalvm.compiler.core.common.type.StampFactory; |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.nodeinfo.NodeInfo; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.memory.AbstractMemoryCheckpoint; |
| import org.graalvm.compiler.nodes.memory.MemoryCheckpoint; |
| import org.graalvm.compiler.nodes.spi.Lowerable; |
| import org.graalvm.compiler.nodes.spi.LoweringTool; |
| |
| import jdk.vm.ci.meta.JavaKind; |
| import sun.misc.Unsafe; |
| |
| /** |
| * Represents an atomic read-and-write operation like {@link Unsafe#getAndSetInt(Object, long, int)} |
| * . |
| */ |
| @NodeInfo(cycles = CYCLES_10, size = SIZE_4) |
| public final class AtomicReadAndWriteNode extends AbstractMemoryCheckpoint implements Lowerable, MemoryCheckpoint.Single { |
| |
| public static final NodeClass<AtomicReadAndWriteNode> TYPE = NodeClass.create(AtomicReadAndWriteNode.class); |
| @Input ValueNode object; |
| @Input ValueNode offset; |
| @Input ValueNode newValue; |
| |
| protected final JavaKind valueKind; |
| protected final LocationIdentity locationIdentity; |
| |
| public AtomicReadAndWriteNode(ValueNode object, ValueNode offset, ValueNode newValue, JavaKind valueKind, LocationIdentity locationIdentity) { |
| super(TYPE, StampFactory.forKind(newValue.getStackKind())); |
| this.object = object; |
| this.offset = offset; |
| this.newValue = newValue; |
| this.valueKind = valueKind; |
| this.locationIdentity = locationIdentity; |
| } |
| |
| public ValueNode object() { |
| return object; |
| } |
| |
| public ValueNode offset() { |
| return offset; |
| } |
| |
| public ValueNode newValue() { |
| return newValue; |
| } |
| |
| public JavaKind getValueKind() { |
| return valueKind; |
| } |
| |
| @Override |
| public LocationIdentity getLocationIdentity() { |
| return locationIdentity; |
| } |
| |
| @Override |
| public void lower(LoweringTool tool) { |
| tool.getLowerer().lower(this, tool); |
| } |
| } |