1/*
2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2017, Red Hat Inc. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 */
24package org.graalvm.compiler.hotspot.meta;
25
26import java.util.ListIterator;
27
28import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
29import org.graalvm.compiler.hotspot.HotSpotGraalRuntimeProvider;
30import org.graalvm.compiler.options.OptionValues;
31import org.graalvm.compiler.phases.BasePhase;
32import org.graalvm.compiler.phases.common.AddressLoweringPhase;
33import org.graalvm.compiler.phases.common.ExpandLogicPhase;
34import org.graalvm.compiler.phases.common.FixReadsPhase;
35import org.graalvm.compiler.phases.tiers.LowTierContext;
36import org.graalvm.compiler.phases.tiers.Suites;
37import org.graalvm.compiler.phases.tiers.SuitesCreator;
38
39/**
40 * Subclass to factor out management of address lowering.
41 */
42public class AddressLoweringHotSpotSuitesProvider extends HotSpotSuitesProvider {
43
44    private final AddressLoweringPhase.AddressLowering addressLowering;
45
46    public AddressLoweringHotSpotSuitesProvider(SuitesCreator defaultSuitesCreator, GraalHotSpotVMConfig config, HotSpotGraalRuntimeProvider runtime,
47                    AddressLoweringPhase.AddressLowering addressLowering) {
48        super(defaultSuitesCreator, config, runtime);
49        this.addressLowering = addressLowering;
50    }
51
52    @Override
53    public Suites createSuites(OptionValues options) {
54        Suites suites = super.createSuites(options);
55
56        ListIterator<BasePhase<? super LowTierContext>> findPhase = suites.getLowTier().findPhase(FixReadsPhase.class);
57        if (findPhase == null) {
58            findPhase = suites.getLowTier().findPhase(ExpandLogicPhase.class);
59        }
60        findPhase.add(new AddressLoweringPhase(addressLowering));
61
62        return suites;
63    }
64}
65