| /* |
| * 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.InputType.Association; |
| import static org.graalvm.compiler.nodeinfo.InputType.Memory; |
| import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_10; |
| import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_3; |
| |
| 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.memory.address.AddressNode; |
| import org.graalvm.compiler.nodes.spi.LIRLowerable; |
| import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; |
| |
| import jdk.vm.ci.meta.Value; |
| import sun.misc.Unsafe; |
| |
| /** |
| * Represents an atomic read-and-add operation like {@link Unsafe#getAndAddInt(Object, long, int)}. |
| */ |
| @NodeInfo(allowedUsageTypes = Memory, cycles = CYCLES_10, size = SIZE_3) |
| public final class AtomicReadAndAddNode extends AbstractMemoryCheckpoint implements LIRLowerable, MemoryCheckpoint.Single { |
| |
| public static final NodeClass<AtomicReadAndAddNode> TYPE = NodeClass.create(AtomicReadAndAddNode.class); |
| @Input(Association) AddressNode address; |
| @Input ValueNode delta; |
| |
| protected final LocationIdentity locationIdentity; |
| |
| public AtomicReadAndAddNode(AddressNode address, ValueNode delta, LocationIdentity locationIdentity) { |
| super(TYPE, StampFactory.forKind(delta.getStackKind())); |
| this.address = address; |
| this.delta = delta; |
| this.locationIdentity = locationIdentity; |
| } |
| |
| public ValueNode delta() { |
| return delta; |
| } |
| |
| @Override |
| public LocationIdentity getLocationIdentity() { |
| return locationIdentity; |
| } |
| |
| @Override |
| public void generate(NodeLIRBuilderTool gen) { |
| Value result = gen.getLIRGeneratorTool().emitAtomicReadAndAdd(gen.operand(address), gen.operand(delta)); |
| gen.setResult(this, result); |
| } |
| } |