comparison graal/com.oracle.max.graal.jtt/src/com/oracle/max/graal/jtt/optimize/VN_Long02.java @ 4587:5b04b33dac74

add jtt tests, converted from the maxine repository using ConvertJTT
author Lukas Stadler <lukas.stadler@jku.at>
date Tue, 14 Feb 2012 16:27:59 +0100
parents
children
comparison
equal deleted inserted replaced
4586:05a6d48a6ace 4587:5b04b33dac74
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 */
23 package com.oracle.max.graal.jtt.optimize;
24
25 import org.junit.*;
26
27 /*
28 * Tests optimization of integer operations.
29 */
30 public class VN_Long02 {
31
32 public static long test(int arg) {
33 if (arg == 0) {
34 return shift0(arg + 10);
35 }
36 if (arg == 1) {
37 return shift1(arg + 10);
38 }
39 if (arg == 2) {
40 return shift2(arg + 10);
41 }
42 return 0;
43 }
44
45 public static long shift0(long x) {
46 long c = 1;
47 long t = x >> c;
48 long u = x >> c;
49 return t + u;
50 }
51
52 public static long shift1(long x) {
53 long c = 1;
54 long t = x >>> c;
55 long u = x >>> c;
56 return t + u;
57 }
58
59 public static long shift2(long x) {
60 long c = 1;
61 long t = x << c;
62 long u = x << c;
63 return t + u;
64 }
65
66 @Test
67 public void run0() throws Throwable {
68 Assert.assertEquals(10L, test(0));
69 }
70
71 @Test
72 public void run1() throws Throwable {
73 Assert.assertEquals(10L, test(1));
74 }
75
76 @Test
77 public void run2() throws Throwable {
78 Assert.assertEquals(48L, test(2));
79 }
80
81 }