1 // RUN: %libomp-compile-and-run
2
3 // XFAIL: icc
4 // UNSUPPORTED: clang-4, clang-5, clang-6, clang-7, clang-8, clang-9, clang-10
5 // UNSUPPORTED: gcc-4, gcc-5, gcc-6, gcc-7, gcc-8
6
7 #include <stdio.h>
8 #include <stdlib.h>
9
10 int a = 0, b = 1;
11
main(int argc,char ** argv)12 int main(int argc, char **argv) {
13
14 #pragma omp parallel reduction(task, +:a) reduction(task, *:b)
15 {
16 #pragma omp single
17 {
18 int i;
19 for (i = 1; i <= 5; ++i) {
20 #pragma omp task in_reduction(+: a) in_reduction(*: b)
21 {
22 a += i;
23 b *= i;
24 }
25 }
26 }
27 }
28
29 if (a != 15) {
30 fprintf(stderr, "error: a != 15. Instead a = %d\n", a);
31 exit(EXIT_FAILURE);
32 }
33 if (b != 120) {
34 fprintf(stderr, "error: b != 120. Instead b = %d\n", b);
35 exit(EXIT_FAILURE);
36 }
37
38 return EXIT_SUCCESS;
39 }
40