LoweringTool.java revision 12657:6ef01bd40ce2 
1/*
2 * Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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22 */
23package org.graalvm.compiler.nodes.spi;
24
25import org.graalvm.compiler.core.common.spi.ConstantFieldProvider;
26import org.graalvm.compiler.nodes.FixedNode;
27import org.graalvm.compiler.nodes.FixedWithNextNode;
28import org.graalvm.compiler.nodes.LogicNode;
29import org.graalvm.compiler.nodes.extended.AnchoringNode;
30import org.graalvm.compiler.nodes.extended.GuardingNode;
31
32import jdk.vm.ci.meta.ConstantReflectionProvider;
33import jdk.vm.ci.meta.DeoptimizationAction;
34import jdk.vm.ci.meta.DeoptimizationReason;
35import jdk.vm.ci.meta.JavaConstant;
36import jdk.vm.ci.meta.MetaAccessProvider;
37
38public interface LoweringTool {
39
40    MetaAccessProvider getMetaAccess();
41
42    LoweringProvider getLowerer();
43
44    ConstantReflectionProvider getConstantReflection();
45
46    ConstantFieldProvider getConstantFieldProvider();
47
48    Replacements getReplacements();
49
50    StampProvider getStampProvider();
51
52    NodeCostProvider getNodeCostProvider();
53
54    GuardingNode createGuard(FixedNode before, LogicNode condition, DeoptimizationReason deoptReason, DeoptimizationAction action);
55
56    GuardingNode createGuard(FixedNode before, LogicNode condition, DeoptimizationReason deoptReason, DeoptimizationAction action, JavaConstant speculation, boolean negated);
57
58    /**
59     * Gets the closest fixed node preceding the node currently being lowered.
60     */
61    FixedWithNextNode lastFixedNode();
62
63    AnchoringNode getCurrentGuardAnchor();
64
65    /**
66     * Marker interface lowering stages.
67     */
68    interface LoweringStage {
69    }
70
71    /**
72     * The lowering stages used in a standard Graal phase plan. Lowering is called 3 times, during
73     * every tier of compilation.
74     */
75    enum StandardLoweringStage implements LoweringStage {
76        HIGH_TIER,
77        MID_TIER,
78        LOW_TIER
79    }
80
81    /**
82     * Returns current lowering stage.
83     */
84    LoweringStage getLoweringStage();
85}
86