1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 class Main {
18     final static int iterations = 10;
19 
assertIntEquals(int expected, int result)20     public static void assertIntEquals(int expected, int result) {
21         if (expected != result) {
22             throw new Error("Expected: " + expected + ", found: " + result);
23         }
24     }
25 
assertDoubleEquals(double expected, double result)26     public static void assertDoubleEquals(double expected, double result) {
27         if (expected != result) {
28             throw new Error("Expected: " + expected + ", found: " + result);
29         }
30     }
31 
assertFloatEquals(float expected, float result)32     public static void assertFloatEquals(float expected, float result) {
33         if (expected != result) {
34             throw new Error("Expected: " + expected + ", found: " + result);
35         }
36     }
37 
assertLongEquals(long expected, long result)38     public static void assertLongEquals(long expected, long result) {
39         if (expected != result) {
40             throw new Error("Expected: " + expected + ", found: " + result);
41         }
42     }
43 
44 
simpleMethod(long jj, long kk)45     public static long simpleMethod(long jj, long kk) {
46         jj = jj >>> kk;
47         return jj;
48     }
simpleMethod1(int jj, int kk)49     public static int simpleMethod1(int jj, int kk) {
50         jj = jj << kk;
51         jj = jj << kk;
52         return jj;
53       }
simpleMethod2(float jj, float ii)54     public static float simpleMethod2(float jj, float ii) {
55         jj = ii / jj;
56         jj = jj / ii;
57         return jj;
58     }
59 
main(String[] args)60     public static void main(String[] args) {
61         long workJ = 0xFFEFAAAA;
62         long workK = 0xF8E9BBBB;
63         int workJ1 = 0xFFEF;
64         int workK1 = 0xF8E9;
65         float workJ2 = 10.0f;
66         float workK2 = 15.0f;
67 
68 
69 
70         for (long i = 0; i < iterations; i++) {
71             workJ = simpleMethod(workJ, workK) + i;
72         }
73         assertLongEquals(workJ, 9);
74 
75         for (int i = 0; i < iterations; i++) {
76             workJ1 = simpleMethod1(workJ1, workK1) + i;
77         }
78         assertIntEquals(workJ1, 2097161);
79 
80         for (float i = 0.0f; i < iterations; i++) {
81             workJ2 = simpleMethod2(workJ2, workK2) + i;
82         }
83         assertFloatEquals(workJ2, 9.122855f);
84     }
85 }
86