Viewing file:  depend-2.c (1.57 KB) -rw-r--r--
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#include <stdlib.h>
#include <unistd.h>
void
foo (int do_sleep)
{
int a[64], i, *p = a + 4, x = 0;
asm volatile ("" : "+r" (p));
for (i = 0; i < 64; i++)
a[i] = i + 8;
#pragma omp parallel private (i)
{
#pragma omp single nowait
{
for (i = 0; i < 8; i++)
{
#pragma omp task depend(out: a[i * 8 : 4])
a[i * 8] += (i + 2) * 9;
#pragma omp task depend(out: p[i * 8 : 2])
p[i * 8] += (i + 3) * 10;
#pragma omp task depend(out: x)
x = 1;
}
for (i = 0; i < 8; i++)
#pragma omp task depend(in: a[i * 8 : 4]) \
depend(inout: a[i * 8 + 4 : 2]) \
depend(in: a[0 : 4]) depend(in: x)
{
if (a[0] != 8 + 2 * 9 || x != 1)
abort ();
if (a[i * 8] != i * 8 + 8 + (i + 2) * 9)
abort ();
if (a[4 + i * 8] != 4 + i * 8 + 8 + (i + 3) * 10)
abort ();
p[i * 8] += a[i * 8];
}
for (i = 0; i < 8; i++)
#pragma omp task depend(inout: a[i * 8 : 4]) \
depend(in: p[i * 8 : 2]) \
depend(in: p[0 : 2], x)
{
if (p[0] != 4 + 8 + 3 * 10 + 0 + 8 + 2 * 9 || x != 1)
abort ();
if (a[i * 8] != i * 8 + 8 + (i + 2) * 9)
abort ();
if (a[4 + i * 8] != (4 + i * 8 + 8 + (i + 3) * 10
+ i * 8 + 8 + (i + 2) * 9))
abort ();
a[i * 8] += 2;
}
for (i = 0; i < 4; i++)
#pragma omp task depend(in: a[i * 16 : 4], a[i * 16 + 8 : 4], x)
{
if (a[i * 16] != i * 16 + 8 + (2 * i + 2) * 9 + 2 || x != 1)
abort ();
if (p[i * 16 + 4] != i * 16 + 8 + 8 + (2 * i + 1 + 2) * 9 + 2)
abort ();
}
}
if (do_sleep)
sleep (1);
}
}
int
main ()
{
foo (1);
foo (0);
return 0;
}
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