1/*
2 * Copyright (c) 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
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23package org.graalvm.compiler.nodes.test;
24
25import java.util.function.Function;
26
27import org.junit.Test;
28
29import org.graalvm.compiler.core.test.GraalCompilerTest;
30import org.graalvm.compiler.nodes.ConstantNode;
31import org.graalvm.compiler.nodes.LogicNode;
32import org.graalvm.compiler.nodes.ShortCircuitOrNode;
33import org.graalvm.compiler.nodes.ValueNode;
34import org.graalvm.compiler.nodes.calc.ConditionalNode;
35import org.graalvm.compiler.nodes.calc.IntegerEqualsNode;
36import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration.Plugins;
37import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext;
38import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin;
39import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins.Registration;
40
41import jdk.vm.ci.meta.JavaKind;
42import jdk.vm.ci.meta.ResolvedJavaMethod;
43
44public class ShortCircuitOrNodeTest extends GraalCompilerTest {
45    static boolean shortCircuitOr(boolean b1, boolean b2) {
46        return b1 || b2;
47    }
48
49    @Override
50    protected Plugins getDefaultGraphBuilderPlugins() {
51        Plugins plugins = super.getDefaultGraphBuilderPlugins();
52        Registration r = new Registration(plugins.getInvocationPlugins(), ShortCircuitOrNodeTest.class);
53        r.register2("shortCircuitOr", boolean.class, boolean.class, new InvocationPlugin() {
54            @Override
55            public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver, ValueNode b1, ValueNode b2) {
56                LogicNode x = b.add(new IntegerEqualsNode(b1, b.add(ConstantNode.forInt(1))));
57                LogicNode y = b.add(new IntegerEqualsNode(b2, b.add(ConstantNode.forInt(1))));
58                ShortCircuitOrNode compare = b.add(new ShortCircuitOrNode(x, false, y, false, 0.5));
59                b.addPush(JavaKind.Boolean, new ConditionalNode(compare, b.add(ConstantNode.forBoolean(true)), b.add(ConstantNode.forBoolean(false))));
60                return true;
61            }
62        });
63
64        return plugins;
65    }
66
67    public static int testSharedConditionSnippet(Object o) {
68        boolean b2 = o != null;
69        boolean b1 = o instanceof Function;
70        if (b1) {
71            if (shortCircuitOr(b1, b2)) {
72                return 4;
73            } else {
74                return 3;
75            }
76        }
77        return 1;
78    }
79
80    @Test
81    public void testSharedCondition() {
82        test("testSharedConditionSnippet", "String");
83    }
84
85}
86