001/*
002 * Copyright (c) 2013, 2014, 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.phases.common.inlining.info;
024
025import java.util.*;
026
027import jdk.internal.jvmci.meta.*;
028import jdk.internal.jvmci.meta.Assumptions.*;
029
030import com.oracle.graal.graph.*;
031import com.oracle.graal.nodes.CallTargetNode.InvokeKind;
032import com.oracle.graal.nodes.*;
033import com.oracle.graal.phases.common.inlining.*;
034import com.oracle.graal.phases.util.*;
035
036/**
037 * Represents an inlining opportunity where the current class hierarchy leads to a monomorphic
038 * target method, but for which an assumption has to be registered because of non-final classes.
039 */
040public class AssumptionInlineInfo extends ExactInlineInfo {
041
042    private final AssumptionResult<?> takenAssumption;
043
044    public AssumptionInlineInfo(Invoke invoke, ResolvedJavaMethod concrete, AssumptionResult<?> takenAssumption) {
045        super(invoke, concrete);
046        this.takenAssumption = takenAssumption;
047    }
048
049    @Override
050    public Collection<Node> inline(Providers providers) {
051        invoke.asNode().graph().getAssumptions().record(takenAssumption);
052        return super.inline(providers);
053    }
054
055    @Override
056    public void tryToDevirtualizeInvoke(Providers providers) {
057        invoke.asNode().graph().getAssumptions().record(takenAssumption);
058        InliningUtil.replaceInvokeCallTarget(invoke, graph(), InvokeKind.Special, concrete);
059    }
060
061    @Override
062    public String toString() {
063        return "assumption " + concrete.format("%H.%n(%p):%r");
064    }
065}