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// { dg-do compile }
// { dg-additional-options "-fdump-tree-gimple" }
#include <cstdlib>
#include <cstring>
extern "C" void abort ();
struct S
{
int * ptr;
int ptr_len;
int *&refptr;
int refptr_len;
bool set_ptr (int n)
{
bool mapped;
#pragma omp target map(from:mapped)
{
if (ptr != NULL)
for (int i = 0; i < ptr_len; i++)
ptr[i] = n;
mapped = (ptr != NULL);
}
return mapped;
}
bool set_refptr (int n)
{
bool mapped;
#pragma omp target map(from:mapped)
{
if (refptr != NULL)
for (int i = 0; i < refptr_len; i++)
refptr[i] = n;
mapped = (refptr != NULL);
}
return mapped;
}
};
int main (void)
{
#define N 10
int *ptr1 = new int[N];
int *ptr2 = new int[N];
memset (ptr1, 0, sizeof (int) * N);
memset (ptr2, 0, sizeof (int) * N);
S s = { ptr1, N, ptr2, N };
bool mapped;
int val = 123;
mapped = s.set_ptr (val);
if (mapped)
abort ();
if (s.ptr != ptr1)
abort ();
for (int i = 0; i < N; i++)
if (ptr1[i] != 0)
abort ();
mapped = s.set_refptr (val);
if (mapped)
abort ();
if (s.refptr != ptr2)
abort ();
for (int i = 0; i < N; i++)
if (ptr2[i] != 0)
abort ();
#pragma omp target data map(ptr1[:N])
mapped = s.set_ptr (val);
if (!mapped)
abort ();
if (s.set_refptr (0))
abort ();
if (s.ptr != ptr1 || s.refptr != ptr2)
abort ();
for (int i = 0; i < N; i++)
if (ptr1[i] != val)
abort ();
#pragma omp target data map(ptr2[:N])
mapped = s.set_refptr (val);
if (!mapped)
abort ();
if (s.set_ptr (0))
abort ();
if (s.ptr != ptr1 || s.refptr != ptr2)
abort ();
for (int i = 0; i < N; i++)
if (ptr2[i] != val)
abort ();
return 0;
}
/* { dg-final { scan-tree-dump {#pragma omp target num_teams.* map\(alloc:MEM.* \[len: 0\]\) map\(firstprivate:this \[pointer assign, bias: 0\]\) firstprivate\(n\) map\(tofrom:\*this \[len: [0-9]+\]\) map\(firstprivate:this \[pointer assign, bias: 0\]\) map\(alloc:\*_[0-9]+ \[pointer assign, zero-length array section, bias: 0\]\) map\(attach:this->refptr \[bias: 0\]\) map\(from:mapped \[len: [0-9]+\]\)} "gimple" } } */
/* { dg-final { scan-tree-dump {#pragma omp target num_teams.* map\(alloc:MEM.* \[len: 0\]\) map\(firstprivate:this \[pointer assign, bias: 0\]\) firstprivate\(n\) map\(tofrom:\*this \[len: [0-9]+\]\) map\(firstprivate:this \[pointer assign, bias: 0\]\) map\(attach_zero_length_array_section:this->ptr \[bias: 0\]\) map\(from:mapped \[len: [0-9]+\]\) map\(alloc:\*_[0-9]+ \[len: 0\]\)} "gimple" } } */
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