001/*
002 * Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.jtt.jdk;
024
025import org.junit.*;
026
027import com.oracle.graal.jtt.*;
028
029public class IntegerBits extends JTTTest {
030
031    @SuppressWarnings("unused") private static int init = Integer.reverseBytes(42);
032    private static int original = 0x01020304;
033    private static int v = 0b1000;
034    private static int zero = 0;
035
036    public static int test(int o) {
037        return Integer.reverseBytes(o);
038    }
039
040    public static int test2(int o) {
041        return Integer.numberOfLeadingZeros(o);
042    }
043
044    public static int test3(int o) {
045        return Integer.numberOfTrailingZeros(o);
046    }
047
048    public static int test4(int o) {
049        return Integer.bitCount(o);
050    }
051
052    @Test
053    public void run0() {
054        runTest("test", original);
055    }
056
057    @Test
058    public void run1() {
059        runTest("test3", v);
060    }
061
062    @Test
063    public void run2() {
064        runTest("test2", v);
065    }
066
067    @Test
068    public void run3() {
069        runTest("test3", zero);
070    }
071
072    @Test
073    public void run4() {
074        runTest("test2", zero);
075    }
076
077    @Test
078    public void run5() {
079        runTest("test", 0x01020304);
080    }
081
082    @Test
083    public void run6() {
084        runTest("test3", 0b1000);
085    }
086
087    @Test
088    public void run7() {
089        runTest("test2", 0b1000);
090    }
091
092    @Test
093    public void run8() {
094        runTest("test3", 0);
095    }
096
097    @Test
098    public void run9() {
099        runTest("test2", 0);
100    }
101
102    @Test
103    public void run10() {
104        runTest("test4", 0xffffffff);
105    }
106
107    @Test
108    public void run11() {
109        runTest("test2", 0xFFFFFFFF);
110    }
111
112    @Test
113    public void run12() {
114        runTest("test2", 0x7FFFFFFF);
115    }
116
117    @Test
118    public void run17() {
119        runTest("test2", 0x80000000);
120    }
121
122    @Test
123    public void run18() {
124        runTest("test2", 0x40000000);
125    }
126
127    @Test
128    public void run13() {
129        runTest("test3", 0x7FFFFFFF);
130    }
131
132    @Test
133    public void run14() {
134        runTest("test3", 0xFFFFFFFF);
135    }
136
137    @Test
138    public void run15() {
139        runTest("test3", 0x80000000);
140    }
141
142    @Test
143    public void run16() {
144        runTest("test3", 0x40000000);
145    }
146
147    @Test
148    public void run19() {
149        runTest("test4", 0x80000000);
150    }
151
152    @Test
153    public void run20() {
154        runTest("test4", 0x40000000);
155    }
156
157    @Test
158    public void run21() {
159        runTest("test4", 0x00000001);
160    }
161
162}