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comparison graal/com.oracle.graal.jtt/src/com/oracle/graal/jtt/optimize/Reduce_LongShift01.java @ 5061:e808627bd16f

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Renamed projects.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Thu, 08 Mar 2012 19:24:17 +0100
parents graal/com.oracle.max.graal.jtt/src/com/oracle/graal/jtt/optimize/Reduce_LongShift01.java@4ed4295ce15f
children 390448a6b535
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5060:4ed4295ce15f 5061:e808627bd16f
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.graal.jtt.optimize;
24
25 import org.junit.*;
26
27 /*
28 * Tests optimization of integer operations.
29 */
30 public class Reduce_LongShift01 {
31
32 public static long test(long 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 if (arg == 3) {
43 return shift3(arg + 10);
44 }
45 if (arg == 4) {
46 return shift4(arg + 10);
47 }
48 if (arg == 5) {
49 return shift5(arg + 10);
50 }
51 return 0;
52 }
53
54 public static long shift0(long x) {
55 return x >> 0;
56 }
57
58 public static long shift1(long x) {
59 return x >>> 0;
60 }
61
62 public static long shift2(long x) {
63 return x << 0;
64 }
65
66 public static long shift3(long x) {
67 return x >> 64;
68 }
69
70 public static long shift4(long x) {
71 return x >>> 64;
72 }
73
74 public static long shift5(long x) {
75 return x << 64;
76 }
77
78 @Test
79 public void run0() throws Throwable {
80 Assert.assertEquals(10L, test(0));
81 }
82
83 @Test
84 public void run1() throws Throwable {
85 Assert.assertEquals(11L, test(1));
86 }
87
88 @Test
89 public void run2() throws Throwable {
90 Assert.assertEquals(12L, test(2));
91 }
92
93 @Test
94 public void run3() throws Throwable {
95 Assert.assertEquals(13L, test(3));
96 }
97
98 @Test
99 public void run4() throws Throwable {
100 Assert.assertEquals(14L, test(4));
101 }
102
103 @Test
104 public void run5() throws Throwable {
105 Assert.assertEquals(15L, test(5));
106 }
107
108 }