mirror of git://gcc.gnu.org/git/gcc.git
47 lines
941 B
C
47 lines
941 B
C
/* { dg-do run { target *-*-linux* *-*-gnu* *-*-freebsd* } } */
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE 1
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#endif
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#include <pthread.h>
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#include <omp.h>
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#include <stdio.h>
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#include <stdlib.h>
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pthread_barrier_t bar;
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void *tf (void *p)
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{
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int l;
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if (p)
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omp_set_num_threads (3);
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pthread_barrier_wait (&bar);
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if (!p)
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omp_set_num_threads (6);
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pthread_barrier_wait (&bar);
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omp_set_dynamic (0);
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if (omp_get_max_threads () != (p ? 3 : 6))
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abort ();
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l = 0;
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#pragma omp parallel num_threads (6) reduction (|:l)
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{
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l |= omp_get_max_threads () != (p ? 3 : 6);
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omp_set_num_threads ((p ? 3 : 6) + omp_get_thread_num ());
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l |= omp_get_max_threads () != ((p ? 3 : 6) + omp_get_thread_num ());
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}
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if (l)
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abort ();
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return NULL;
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}
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int
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main (void)
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{
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pthread_t th;
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pthread_barrier_init (&bar, NULL, 2);
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pthread_create (&th, NULL, tf, NULL);
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tf ("");
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pthread_join (th, NULL);
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return 0;
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}
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