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// RUN: %libomptarget-compile-run-and-check-generic
// REQUIRES: libc
//
// FIXME: https://github.com/llvm/llvm-project/issues/161265
// XFAIL: gpu
#include <omp.h>
#include <stdio.h>
typedef struct {
short x;
int *p;
long y;
} S;
void f1() {
S s[10], *ps;
ps = &s[0];
s[0].x = 111;
s[1].x = 222;
s[2].x = 333;
s[3].x = 444;
#pragma omp target enter data map(to : s)
#pragma omp target enter data map(to : ps, ps->x)
S **ps_mappedptr = (S **)omp_get_mapped_ptr(&ps, omp_get_default_device());
short *s0_mappedptr =
(short *)omp_get_mapped_ptr(&s[0].x, omp_get_default_device());
short *s0_hostaddr = &s[0].x;
printf("ps_mappedptr %s null\n", ps_mappedptr == (S **)NULL ? "==" : "!=");
printf("s0_mappedptr %s null\n", s0_mappedptr == (short *)NULL ? "==" : "!=");
// CHECK: ps_mappedptr != null
// CHECK: s0_mappedptr != null
// ps is predetermined firstprivate, so its address will be different from
// the mapped address for this construct. So, any changes to p within the
// region will not be visible after the construct.
#pragma omp target map(ps->x) map(to : ps_mappedptr, s0_mappedptr, s0_hostaddr)
{
printf("%d %d %d %d\n", ps->x, ps_mappedptr == &ps, s0_mappedptr == &ps->x,
s0_hostaddr == &ps->x);
// CHECK: 111 0 1 0
ps++;
}
// For the remaining constructs, ps is not firstprivate, so its address will
// be the same as the mapped address, and changes to ps will be visible to any
// subsequent regions.
#pragma omp target map(to : ps->x, ps) \
map(to : ps_mappedptr, s0_mappedptr, s0_hostaddr)
{
printf("%d %d %d %d\n", ps->x, ps_mappedptr == &ps, s0_mappedptr == &ps->x,
s0_hostaddr == &ps->x);
// EXPECTED: 111 1 1 0
// CHECK: 111 0 1 0
ps++;
}
#pragma omp target map(to : ps, ps->x) \
map(to : ps_mappedptr, s0_mappedptr, s0_hostaddr)
{
printf("%d %d %d %d\n", ps->x, ps_mappedptr == &ps,
s0_mappedptr == &ps[-1].x, s0_hostaddr == &ps[-1].x);
// EXPECTED: 222 1 1 0
// CHECK: 111 0 0 0
ps++;
}
#pragma omp target map(present, alloc : ps) \
map(to : ps_mappedptr, s0_mappedptr, s0_hostaddr)
{
printf("%d %d %d %d\n", ps->x, ps_mappedptr == &ps,
s0_mappedptr == &ps[-2].x, s0_hostaddr == &ps[-2].x);
// EXPECTED: 333 1 1 0
// CHECK: 111 1 0 0
}
// The following map(from:ps) should not bring back ps, because ps is an
// attached pointer. So, it should still point to the same original
// location, &s[0], on host.
#pragma omp target exit data map(always, from : ps)
printf("%d %d\n", ps->x, ps == &s[0]);
// CHECK: 111 1
#pragma omp target exit data map(delete : ps, s)
}
int main() { f1(); }
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