VN_Float01.java revision 12651:6ef01bd40ce2 
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 optimization of float operations.
31 */
32public class VN_Float01 extends JTTTest {
33
34    public static float test(float arg) {
35        if (arg == 0) {
36            return add(arg + 10);
37        }
38        if (arg == 1) {
39            return sub(arg + 10);
40        }
41        if (arg == 2) {
42            return mul(arg + 10);
43        }
44        if (arg == 3) {
45            return div(arg + 10);
46        }
47        return 0;
48    }
49
50    public static float add(float x) {
51        float c = 1;
52        float t = x + c;
53        float u = x + c;
54        return t + u;
55    }
56
57    public static float sub(float x) {
58        float c = 1;
59        float t = x - c;
60        float u = x - c;
61        return t - u;
62    }
63
64    public static float mul(float x) {
65        float c = 1;
66        float t = x * c;
67        float u = x * c;
68        return t * u;
69    }
70
71    public static float div(float x) {
72        float c = 1;
73        float t = x / c;
74        float u = x / c;
75        return t / u;
76    }
77
78    @Test
79    public void run0() throws Throwable {
80        runTest("test", 0f);
81    }
82
83    @Test
84    public void run1() throws Throwable {
85        runTest("test", 1f);
86    }
87
88    @Test
89    public void run2() throws Throwable {
90        runTest("test", 2f);
91    }
92
93    @Test
94    public void run3() throws Throwable {
95        runTest("test", 3f);
96    }
97
98}
99