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1 /*
2  * Copyright (C) 2010 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 /* This program tests for a compiler bug that was found in the
18  * arm-linux-androideabi-4.4.3 toolchain and fixed by the change at
19  * https://review.source.android.com/#change,19474
20  *
21  * The bug generated an invalid sequence of thumb machine instructions
22  * when signed chars were being used.
23  */
24 #include <stdio.h>
25 
test(signed char anim_col)26 int test(signed char anim_col)
27 {
28     if (anim_col >= 31) {
29         return 1;
30     } else if (anim_col <= -15) {
31         return -2;
32     }
33     return 0;
34 }
35 
main(void)36 int main(void)
37 {
38     const int testval = -7;
39     const int expected = 0;
40     int ret = test(testval);
41 
42     if (ret != expected) {
43         fprintf(stderr, "ERROR: test(%d) returned %d instead of %d\n",
44                         testval, ret, expected);
45         return 1;
46     }
47     printf("OK: test(%d) returned %d\n", testval, expected);
48     return 0;
49 }
50