mirror of git://gcc.gnu.org/git/gcc.git
54 lines
947 B
C
54 lines
947 B
C
/* Trivial test of single. */
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/* { dg-require-effective-target sync_int_long } */
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#include <omp.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <assert.h>
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#include "libgomp_g.h"
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static int test;
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static void f_nocopy (void *dummy)
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{
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if (GOMP_single_start ())
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{
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int iam = omp_get_thread_num ();
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int old = __sync_lock_test_and_set (&test, iam);
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assert (old == -1);
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}
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}
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static void f_copy (void *dummy)
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{
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int *x = GOMP_single_copy_start ();
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if (x == NULL)
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{
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int iam = omp_get_thread_num ();
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int old = __sync_lock_test_and_set (&test, iam);
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assert (old == -1);
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GOMP_single_copy_end (&test);
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}
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else
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assert (x == &test);
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}
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int main()
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{
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omp_set_dynamic (0);
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test = -1;
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GOMP_parallel_start (f_nocopy, NULL, 3);
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f_nocopy (NULL);
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GOMP_parallel_end ();
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test = -1;
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GOMP_parallel_start (f_copy, NULL, 3);
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f_copy (NULL);
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GOMP_parallel_end ();
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return 0;
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}
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