Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/AtomicReadAndAddNode.java @ 17328:c9bb0da795d4
Backed out of changeset 17322:655f3e6b467b
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 03 Oct 2014 14:19:58 +0200 |
parents | 655f3e6b467b |
children | 45b45f902bed |
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/* * Copyright (c) 2014, 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.java; import static com.oracle.graal.compiler.common.UnsafeAccess.*; import sun.misc.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.common.type.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.extended.*; import com.oracle.graal.nodes.spi.*; /** * Represents an atomic read-and-add operation like {@link Unsafe#getAndAddInt(Object, long, int)}. */ @NodeInfo(allowedUsageTypes = {InputType.Memory}) public class AtomicReadAndAddNode extends AbstractMemoryCheckpoint implements LIRLowerable, MemoryCheckpoint.Single { @Input ValueNode object; @Input ValueNode offset; @Input ValueNode delta; protected final LocationIdentity locationIdentity; public static AtomicReadAndAddNode create(ValueNode object, ValueNode offset, ValueNode delta, LocationIdentity locationIdentity) { return USE_GENERATED_NODES ? new AtomicReadAndAddNodeGen(object, offset, delta, locationIdentity) : new AtomicReadAndAddNode(object, offset, delta, locationIdentity); } protected AtomicReadAndAddNode(ValueNode object, ValueNode offset, ValueNode delta, LocationIdentity locationIdentity) { super(StampFactory.forKind(delta.getKind())); this.object = object; this.offset = offset; this.delta = delta; this.locationIdentity = locationIdentity; } public ValueNode object() { return object; } public ValueNode offset() { return offset; } public ValueNode delta() { return delta; } public LocationIdentity getLocationIdentity() { return locationIdentity; } public void generate(NodeLIRBuilderTool gen) { LocationNode location = IndexedLocationNode.create(getLocationIdentity(), delta.getKind(), 0, offset, graph(), 1); Value address = location.generateAddress(gen, gen.getLIRGeneratorTool(), gen.operand(object())); Value result = gen.getLIRGeneratorTool().emitAtomicReadAndAdd(address, gen.operand(delta)); gen.setResult(this, result); } @NodeIntrinsic public static int getAndAddInt(Object object, long offset, int delta, @ConstantNodeParameter @SuppressWarnings("unused") LocationIdentity locationIdentity) { return unsafe.getAndAddInt(object, offset, delta); } @NodeIntrinsic public static long getAndAddLong(Object object, long offset, long delta, @ConstantNodeParameter @SuppressWarnings("unused") LocationIdentity locationIdentity) { return unsafe.getAndAddLong(object, offset, delta); } }