ConditionalEliminationTest4.java revision 12657:6ef01bd40ce2 
1/*
2 * Copyright (c) 2015, 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.core.test;
24
25import org.junit.Test;
26
27/**
28 * Collection of tests for
29 * {@link org.graalvm.compiler.phases.common.DominatorConditionalEliminationPhase} including those
30 * that triggered bugs in this phase.
31 */
32public class ConditionalEliminationTest4 extends ConditionalEliminationTestBase {
33
34    @SuppressWarnings("all")
35    public static int reference1Snippet(int a, int b) {
36        if (a > b) {
37            return 1;
38        }
39        return 2;
40    }
41
42    @SuppressWarnings("all")
43    public static int test1Snippet(int a, int b) {
44        if (a > b) {
45            if (a > b) {
46                return 1;
47            }
48        }
49        return 2;
50    }
51
52    @Test
53    public void test1() {
54        testConditionalElimination("test1Snippet", "reference1Snippet");
55    }
56
57    @SuppressWarnings("all")
58    public static int reference2Snippet(int a, int b) {
59        if (a < b) {
60            return 1;
61        }
62        return 2;
63    }
64
65    @SuppressWarnings("all")
66    public static int test2Snippet(int a, int b) {
67        if (a < b) {
68            if (a < b) {
69                return 1;
70            }
71        }
72        return 2;
73    }
74
75    @Test
76    public void test2() {
77        testConditionalElimination("test2Snippet", "reference2Snippet");
78    }
79}
80