VN_Int01.java revision 12657:6ef01bd40ce2 
1/*
2 * Copyright (c) 2009, 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.optimize;
24
25import org.junit.Test;
26
27import org.graalvm.compiler.jtt.JTTTest;
28
29/*
30 * Tests value numbering of integer operations.
31 */
32public class VN_Int01 extends JTTTest {
33
34    public static int test(int arg) {
35        if (arg == 0) {
36            return add(arg);
37        }
38        if (arg == 1) {
39            return sub(arg);
40        }
41        if (arg == 2) {
42            return mul(arg);
43        }
44        if (arg == 3) {
45            return div(arg);
46        }
47        if (arg == 4) {
48            return mod(arg);
49        }
50        if (arg == 5) {
51            return and(arg);
52        }
53        if (arg == 6) {
54            return or(arg);
55        }
56        if (arg == 7) {
57            return xor(arg);
58        }
59        return 0;
60    }
61
62    public static int add(int x) {
63        int c = 3;
64        int t = x + c;
65        int u = x + c;
66        return t + u;
67    }
68
69    public static int sub(int x) {
70        int c = 3;
71        int t = x - c;
72        int u = x - c;
73        return t - u;
74    }
75
76    public static int mul(int x) {
77        int i = 3;
78        int t = x * i;
79        int u = x * i;
80        return t * u;
81    }
82
83    public static int div(int x) {
84        int i = 9;
85        int t = i / x;
86        int u = i / x;
87        return t / u;
88    }
89
90    public static int mod(int x) {
91        int i = 7;
92        int t = i % x;
93        int u = i % x;
94        return t % u;
95    }
96
97    public static int and(int x) {
98        int i = 7;
99        int t = i & x;
100        int u = i & x;
101        return t & u;
102    }
103
104    public static int or(int x) {
105        int i = 7;
106        int t = i | x;
107        int u = i | x;
108        return t | u;
109    }
110
111    public static int xor(int x) {
112        int i = 7;
113        int t = i ^ x;
114        int u = i ^ x;
115        return t ^ u;
116    }
117
118    @Test
119    public void run0() throws Throwable {
120        runTest("test", 0);
121    }
122
123    @Test
124    public void run1() throws Throwable {
125        runTest("test", 1);
126    }
127
128    @Test
129    public void run2() throws Throwable {
130        runTest("test", 2);
131    }
132
133    @Test
134    public void run3() throws Throwable {
135        runTest("test", 3);
136    }
137
138    @Test
139    public void run4() throws Throwable {
140        runTest("test", 4);
141    }
142
143    @Test
144    public void run5() throws Throwable {
145        runTest("test", 5);
146    }
147
148    @Test
149    public void run6() throws Throwable {
150        runTest("test", 6);
151    }
152
153    @Test
154    public void run7() throws Throwable {
155        runTest("test", 7);
156    }
157
158}
159