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/* { dg-do compile } */
#include <omp.h>
typedef struct
{
int a, b;
omp_nest_lock_t lck;
} pair;
int work1 ();
int work2 ();
int work3 ();
void
incr_a (pair * p, int a)
{
/* Called only from incr_pair, no need to lock. */
p->a += a;
}
void
incr_b (pair * p, int b)
{
/* Called both from incr_pair and elsewhere, */
/* so need a nestable lock. */
omp_set_nest_lock (&p->lck);
p->b += b;
omp_unset_nest_lock (&p->lck);
}
void
incr_pair (pair * p, int a, int b)
{
omp_set_nest_lock (&p->lck);
incr_a (p, a);
incr_b (p, b);
omp_unset_nest_lock (&p->lck);
}
void
a40 (pair * p)
{
#pragma omp parallel sections
{
#pragma omp section
incr_pair (p, work1 (), work2 ());
#pragma omp section
incr_b (p, work3 ());
}
}
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