1/*
2 * Copyright (c) 2017, 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 */
23
24/*
25 * @test
26 * @bug 8150102 8150514 8150534 8171435
27 * @summary C1 crashes in Canonicalizer::do_ArrayLength() after fix for JDK-8150102
28 *
29 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions
30 *                   -XX:CompileThreshold=100 -XX:+TieredCompilation -XX:TieredStopAtLevel=1
31 *                   -XX:-BackgroundCompilation
32 *                   compiler.c1.CanonicalizeArrayLength
33 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions
34 *                   -XX:CompileThreshold=100 -XX:+TieredCompilation -XX:TieredStopAtLevel=3
35 *                   -XX:-BackgroundCompilation
36 *                   -XX:+PatchALot
37 *                   compiler.c1.CanonicalizeArrayLength
38 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions
39 *                   -XX:CompileThreshold=100 -XX:+TieredCompilation -XX:TieredStopAtLevel=1
40 *                   -XX:-BackgroundCompilation
41 *                   -XX:ScavengeRootsInCode=0
42 *                   compiler.c1.CanonicalizeArrayLength
43 * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+UnlockDiagnosticVMOptions
44 *                   -XX:CompileThreshold=100 -XX:+TieredCompilation -XX:TieredStopAtLevel=1
45 *                   -XX:-BackgroundCompilation -XX:ScavengeRootsInCode=1
46 *                   compiler.c1.CanonicalizeArrayLength
47 */
48
49package compiler.c1;
50
51public class CanonicalizeArrayLength {
52    int[] arr = new int[42];
53    int[] arrNull = null;
54
55    final int[] finalArr = new int[42];
56    final int[] finalArrNull = null;
57
58    static int[] staticArr = new int[42];
59    static int[] staticArrNull = null;
60
61    static final int[] staticFinalArr = new int[42];
62    static final int[] staticFinalArrNull = null;
63
64    public static void main(String... args) {
65        CanonicalizeArrayLength t = new CanonicalizeArrayLength();
66        for (int i = 0; i < 20000; i++) {
67            if (t.testLocal() != 42)
68                throw new IllegalStateException();
69            if (t.testLocalNull() != 42)
70                throw new IllegalStateException();
71            if (t.testField() != 42)
72                throw new IllegalStateException();
73            if (t.testFieldNull() != 42)
74                throw new IllegalStateException();
75            if (t.testFinalField() != 42)
76                throw new IllegalStateException();
77            if (t.testFinalFieldNull() != 42)
78                throw new IllegalStateException();
79            if (t.testStaticField() != 42)
80                throw new IllegalStateException();
81            if (t.testStaticFieldNull() != 42)
82                throw new IllegalStateException();
83            if (t.testStaticFinalField() != 42)
84                throw new IllegalStateException();
85            if (t.testStaticFinalFieldNull() != 42)
86                throw new IllegalStateException();
87        }
88    }
89
90    int testField() {
91        try {
92            return arr.length;
93        } catch (Throwable t) {
94            return -1;
95        }
96    }
97
98    int testFieldNull() {
99        try {
100            return arrNull.length;
101        } catch (Throwable t) {
102            return 42;
103        }
104    }
105
106    int testFinalField() {
107        try {
108            return finalArr.length;
109        } catch (Throwable t) {
110            return -1;
111        }
112    }
113
114    int testFinalFieldNull() {
115        try {
116            return finalArrNull.length;
117        } catch (Throwable t) {
118            return 42;
119        }
120    }
121
122    int testStaticField() {
123        try {
124            return staticArr.length;
125        } catch (Throwable t) {
126            return -1;
127        }
128    }
129
130    int testStaticFieldNull() {
131        try {
132            return staticArrNull.length;
133        } catch (Throwable t) {
134            return 42;
135        }
136    }
137
138    int testStaticFinalField() {
139        try {
140            return staticFinalArr.length;
141        } catch (Throwable t) {
142            return -1;
143        }
144    }
145
146    int testStaticFinalFieldNull() {
147        try {
148            return staticFinalArrNull.length;
149        } catch (Throwable t) {
150            return 42;
151        }
152    }
153
154    int testLocal() {
155        int[] arr = new int[42];
156        try {
157            return arr.length;
158        } catch (Throwable t) {
159            return -1;
160        }
161    }
162
163    int testLocalNull() {
164        int[] arrNull = null;
165        try {
166            return arrNull.length;
167        } catch (Throwable t) {
168            return 42;
169        }
170    }
171
172
173}
174