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- #include <stdlib.h>
- #include <unistd.h>
- int
- main ()
- {
- #pragma omp parallel
- #pragma omp single
- {
- int x = 1, y = 2, z = 3;
- #pragma omp taskgroup
- {
- #pragma omp task shared (x, y, z) depend(inout: x, y) \
- depend (in: z) if (x > 10)
- {
- if (x != 1 || y != 2 || z != 3)
- abort ();
- x = 4;
- y = 5;
- }
- /* The above task has depend clauses, but no dependencies
- on earlier tasks, and is if (0), so must be scheduled
- immediately. */
- if (x != 4 || y != 5)
- abort ();
- }
- #pragma omp taskgroup
- {
- #pragma omp task shared (x, y) depend(in: x, y)
- {
- usleep (10000);
- if (x != 4 || y != 5 || z != 3)
- abort ();
- }
- #pragma omp task shared (x, y) depend(in: x, y)
- {
- usleep (10000);
- if (x != 4 || y != 5 || z != 3)
- abort ();
- }
- #pragma omp task shared (x, y, z) depend(inout: x, y) \
- depend (in: z) if (x > 10)
- {
- if (x != 4 || y != 5 || z != 3)
- abort ();
- x = 6;
- y = 7;
- }
- /* The above task has depend clauses, and may have dependencies
- on earlier tasks, while it is if (0), it can be deferred. */
- }
- if (x != 6 || y != 7)
- abort ();
- }
- return 0;
- }
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