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