001/*
002 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.hotspot.nodes;
024
025import jdk.internal.jvmci.meta.*;
026import static com.oracle.graal.hotspot.HotSpotBackend.*;
027
028import com.oracle.graal.compiler.common.spi.*;
029import com.oracle.graal.compiler.common.type.*;
030import com.oracle.graal.graph.*;
031import com.oracle.graal.hotspot.*;
032import com.oracle.graal.lir.StandardOp.SaveRegistersOp;
033import com.oracle.graal.nodeinfo.*;
034import com.oracle.graal.nodes.*;
035import com.oracle.graal.nodes.memory.*;
036import com.oracle.graal.nodes.spi.*;
037import com.oracle.graal.word.*;
038
039/**
040 * A call to the runtime code {@code Deoptimization::fetch_unroll_info}.
041 */
042@NodeInfo(allowedUsageTypes = {InputType.Memory})
043public final class DeoptimizationFetchUnrollInfoCallNode extends FixedWithNextNode implements LIRLowerable, MemoryCheckpoint.Single {
044
045    public static final NodeClass<DeoptimizationFetchUnrollInfoCallNode> TYPE = NodeClass.create(DeoptimizationFetchUnrollInfoCallNode.class);
046    @Input SaveAllRegistersNode registerSaver;
047    protected final ForeignCallsProvider foreignCalls;
048
049    public DeoptimizationFetchUnrollInfoCallNode(@InjectedNodeParameter ForeignCallsProvider foreignCalls, ValueNode registerSaver) {
050        super(TYPE, StampFactory.forKind(Kind.fromJavaClass(FETCH_UNROLL_INFO.getResultType())));
051        this.registerSaver = (SaveAllRegistersNode) registerSaver;
052        this.foreignCalls = foreignCalls;
053    }
054
055    @Override
056    public LocationIdentity getLocationIdentity() {
057        return LocationIdentity.any();
058    }
059
060    public SaveRegistersOp getSaveRegistersOp() {
061        return registerSaver.getSaveRegistersOp();
062    }
063
064    @Override
065    public void generate(NodeLIRBuilderTool gen) {
066        Value result = ((HotSpotLIRGenerator) gen.getLIRGeneratorTool()).emitDeoptimizationFetchUnrollInfoCall(getSaveRegistersOp());
067        gen.setResult(this, result);
068    }
069
070    @NodeIntrinsic
071    public static native Word fetchUnrollInfo(long registerSaver);
072}