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extern "C" void abort ();
__attribute__((noinline, noclone)) void
foo (int *&p, int *&q, int *&r, int n, int m)
{
int i, err, *s = r;
int sep = 1;
#pragma omp target map(to:sep)
sep = 0;
#pragma omp target data map(to:p[0:8])
{
/* For zero length array sections, p points to the start of
already mapped range, q to the end of it (with nothing mapped
after it), and r does not point to an mapped range. */
#pragma omp target map(alloc:p[:0]) map(to:q[:0]) map(from:r[:0]) private(i) map(from:err) firstprivate (s)
{
err = 0;
for (i = 0; i < 8; i++)
if (p[i] != i + 1)
err = 1;
if (sep)
{
/* Since OpenMP 5.2, 'q'/'r' are no longer set to NULL if pointing to
unmapped storage. */
if (q == (int *) 0 || r == (int *) 0)
err = 1;
}
else if (p + 8 != q || r != s)
err = 1;
}
if (err)
abort ();
/* Implicit mapping of pointers behaves the same way. */
#pragma omp target private(i) map(from:err) firstprivate (s)
{
err = 0;
for (i = 0; i < 8; i++)
if (p[i] != i + 1)
err = 1;
if (sep)
{
/* Since OpenMP 5.2, 'q'/'r' are no longer set to NULL if pointing to
unmapped storage. */
if (q == (int *) 0 || r == (int *) 0)
err = 1;
}
else if (p + 8 != q || r != s)
err = 1;
}
if (err)
abort ();
/* And zero-length array sections, though not known at compile
time, behave the same. */
#pragma omp target map(p[:n]) map(tofrom:q[:n]) map(alloc:r[:n]) private(i) map(from:err) firstprivate (s)
{
err = 0;
for (i = 0; i < 8; i++)
if (p[i] != i + 1)
err = 1;
if (sep)
{
/* Since OpenMP 5.2, 'q'/'r' are no longer set to NULL if pointing to
unmapped storage. */
if (q == (int *) 0 || r == (int *) 0)
err = 1;
}
else if (p + 8 != q || r != s)
err = 1;
}
if (err)
abort ();
/* Non-zero length array sections, though not known at compile,
behave differently. */
#pragma omp target map(p[:m]) map(tofrom:q[:m]) map(to:r[:m]) private(i) map(from:err)
{
err = 0;
for (i = 0; i < 8; i++)
if (p[i] != i + 1)
err = 1;
if (q[0] != 9 || r[0] != 10)
err = 1;
}
if (err)
abort ();
#pragma omp target data map(to:q[0:1])
{
/* For zero length array sections, p points to the start of
already mapped range, q points to the start of another one,
and r to the end of the second one. */
#pragma omp target map(to:p[:0]) map(from:q[:0]) map(tofrom:r[:0]) private(i) map(from:err)
{
err = 0;
for (i = 0; i < 8; i++)
if (p[i] != i + 1)
err = 1;
if (q[0] != 9)
err = 1;
else if (sep)
{
/* Since OpenMP 5.2, 'r' is no longer set to NULL if *r is unmapped.*/
if (r == (int *) 0)
err = 1;
}
else if (r != q + 1)
err = 1;
}
if (err)
abort ();
/* Implicit mapping of pointers behaves the same way. */
#pragma omp target private(i) map(from:err)
{
err = 0;
for (i = 0; i < 8; i++)
if (p[i] != i + 1)
err = 1;
if (q[0] != 9)
err = 1;
else if (sep)
{
/* Since OpenMP 5.2, 'r' is no longer set to NULL if *r is unmapped.*/
if (r == (int *) 0)
err = 1;
}
else if (r != q + 1)
err = 1;
}
if (err)
abort ();
/* And zero-length array sections, though not known at compile
time, behave the same. */
#pragma omp target map(p[:n]) map(alloc:q[:n]) map(from:r[:n]) private(i) map(from:err)
{
err = 0;
for (i = 0; i < 8; i++)
if (p[i] != i + 1)
err = 1;
if (q[0] != 9)
err = 1;
else if (sep)
{
/* Since OpenMP 5.2, 'r' is no longer set to NULL if *r is unmapped.*/
if (r == (int *) 0)
err = 1;
}
else if (r != q + 1)
err = 1;
}
if (err)
abort ();
/* Non-zero length array sections, though not known at compile,
behave differently. */
#pragma omp target map(p[:m]) map(alloc:q[:m]) map(tofrom:r[:m]) private(i) map(from:err)
{
err = 0;
for (i = 0; i < 8; i++)
if (p[i] != i + 1)
err = 1;
if (q[0] != 9 || r[0] != 10)
err = 1;
}
if (err)
abort ();
}
}
}
int
main ()
{
int a[32], i;
for (i = 0; i < 32; i++)
a[i] = i;
int *p = a + 1, *q = a + 9, *r = a + 10;
foo (p, q, r, 0, 1);
return 0;
}
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