1/*
2 * Copyright (c) 2012, 2012, 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.jtt.jdk;
24
25import org.junit.Test;
26
27import org.graalvm.compiler.jtt.JTTTest;
28
29public class LongBits extends JTTTest {
30
31    @SuppressWarnings("unused") private static long init = Long.reverseBytes(42);
32    private static long original = 0x0102030405060708L;
33    private static long v = 0b1000L;
34    private static long v2 = 0x0100000000L;
35    private static long zero = 0L;
36
37    public static long test(long o) {
38        return Long.reverseBytes(o);
39    }
40
41    public static int test2(long o) {
42        return Long.numberOfLeadingZeros(o);
43    }
44
45    public static int test3(long o) {
46        return Long.numberOfTrailingZeros(o);
47    }
48
49    public static int test4(long o) {
50        return Long.bitCount(o);
51    }
52
53    @Test
54    public void run0() {
55        runTest("test", original);
56    }
57
58    @Test
59    public void run1() {
60        runTest("test3", v);
61    }
62
63    @Test
64    public void run2() {
65        runTest("test2", v);
66    }
67
68    @Test
69    public void run3() {
70        runTest("test3", zero);
71    }
72
73    @Test
74    public void run4() {
75        runTest("test2", zero);
76    }
77
78    @Test
79    public void run5() {
80        runTest("test", 0x0102030405060708L);
81    }
82
83    @Test
84    public void run6() {
85        runTest("test3", 0b1000L);
86    }
87
88    @Test
89    public void run7() {
90        runTest("test2", 0b1000L);
91    }
92
93    @Test
94    public void run8() {
95        runTest("test3", 0L);
96    }
97
98    @Test
99    public void run9() {
100        runTest("test2", 0L);
101    }
102
103    @Test
104    public void run10() {
105        runTest("test2", v2);
106    }
107
108    @Test
109    public void run11() {
110        runTest("test3", v2);
111    }
112
113    @Test
114    public void run12() {
115        runTest("test2", 0x0100000000L);
116    }
117
118    @Test
119    public void run13() {
120        runTest("test3", 0x0100000000L);
121    }
122
123    @Test
124    public void run14() {
125        runTest("test4", 0L);
126        runTest("test4", 1L);
127        runTest("test4", 0xffff00ffL);
128        runTest("test4", 0xffffffffL);
129        runTest("test4", 0x3ffffffffL);
130        runTest("test4", 0xffffffff3L);
131        runTest("test4", 0xffffffffffffffffL);
132    }
133}
134