gcc/libgomp/testsuite/libgomp.c/reduction-4.c

37 lines
593 B
C

#include <omp.h>
#include <stdlib.h>
int
main (void)
{
int i = 0, j = 0, k = 0, l = 0;
#pragma omp parallel num_threads(4) reduction(-:i) reduction(|:k) \
reduction(^:l)
{
if (i != 0 || k != 0 || l != 0)
#pragma omp atomic
j |= 1;
if (omp_get_num_threads () != 4)
#pragma omp atomic
j |= 2;
i = omp_get_thread_num ();
k = 1 << (2 * i);
l = 0xea << (3 * i);
}
if (j & 1)
abort ();
if ((j & 2) == 0)
{
if (i != (0 + 1 + 2 + 3))
abort ();
if (k != 0x55)
abort ();
if (l != 0x1e93a)
abort ();
}
return 0;
}