HotSpotInvocationPlugins.java revision 13082:72abda3e08b6 
1/*
2 * Copyright (c) 2015, 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
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23package org.graalvm.compiler.hotspot.meta;
24
25import java.lang.reflect.Type;
26
27import org.graalvm.compiler.core.common.GraalOptions;
28import org.graalvm.compiler.graph.Node;
29import org.graalvm.compiler.graph.iterators.NodeIterable;
30import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
31import org.graalvm.compiler.hotspot.phases.AheadOfTimeVerificationPhase;
32import org.graalvm.compiler.nodes.ConstantNode;
33import org.graalvm.compiler.nodes.FrameState;
34import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext;
35import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin;
36import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins;
37import org.graalvm.compiler.nodes.type.StampTool;
38import org.graalvm.compiler.replacements.nodes.MacroNode;
39
40import jdk.vm.ci.meta.JavaKind;
41import jdk.vm.ci.meta.MetaAccessProvider;
42import jdk.vm.ci.meta.ResolvedJavaType;
43
44/**
45 * Extension of {@link InvocationPlugins} that disables plugins based on runtime configuration.
46 */
47final class HotSpotInvocationPlugins extends InvocationPlugins {
48    final GraalHotSpotVMConfig config;
49
50    HotSpotInvocationPlugins(GraalHotSpotVMConfig config, MetaAccessProvider metaAccess) {
51        super(metaAccess);
52        this.config = config;
53    }
54
55    @Override
56    public void register(InvocationPlugin plugin, Type declaringClass, String name, Type... argumentTypes) {
57        if (!config.usePopCountInstruction) {
58            if (name.equals("bitCount")) {
59                assert declaringClass.equals(Integer.class) || declaringClass.equals(Long.class);
60                return;
61            }
62        }
63        super.register(plugin, declaringClass, name, argumentTypes);
64    }
65
66    @Override
67    public void checkNewNodes(GraphBuilderContext b, InvocationPlugin plugin, NodeIterable<Node> newNodes) {
68        for (Node node : newNodes) {
69            if (node instanceof MacroNode) {
70                // MacroNode based plugins can only be used for inlining since they
71                // require a valid bci should they need to replace themselves with
72                // an InvokeNode during lowering.
73                assert plugin.inlineOnly() : String.format("plugin that creates a %s (%s) must return true for inlineOnly(): %s", MacroNode.class.getSimpleName(), node, plugin);
74            }
75        }
76        if (GraalOptions.ImmutableCode.getValue(b.getOptions())) {
77            for (Node node : newNodes) {
78                if (node.hasUsages() && node instanceof ConstantNode) {
79                    ConstantNode c = (ConstantNode) node;
80                    if (c.getStackKind() == JavaKind.Object && AheadOfTimeVerificationPhase.isIllegalObjectConstant(c)) {
81                        if (isClass(c)) {
82                            // This will be handled later by LoadJavaMirrorWithKlassPhase
83                        } else {
84                            // Tolerate uses in unused FrameStates
85                            if (node.usages().filter((n) -> !(n instanceof FrameState) || n.hasUsages()).isNotEmpty()) {
86                                throw new AssertionError("illegal constant node in AOT: " + node);
87                            }
88                        }
89                    }
90                }
91            }
92        }
93        super.checkNewNodes(b, plugin, newNodes);
94    }
95
96    private static boolean isClass(ConstantNode node) {
97        ResolvedJavaType type = StampTool.typeOrNull(node);
98        return type != null && "Ljava/lang/Class;".equals(type.getName());
99    }
100}
101