| 1 | // RUN: %libomptarget-compile-run-and-check-generic |
|---|---|
| 2 | |
| 3 | #include <omp.h> |
| 4 | #include <stdio.h> |
| 5 | |
| 6 | // Allocate pinned memory on the host |
| 7 | void *llvm_omp_target_alloc_host(size_t, int); |
| 8 | void llvm_omp_target_free_host(void *, int); |
| 9 | |
| 10 | int main() { |
| 11 | const int N = 64; |
| 12 | const int device = omp_get_default_device(); |
| 13 | const int host = omp_get_initial_device(); |
| 14 | |
| 15 | int *hst_ptr = llvm_omp_target_alloc_host(N * sizeof(int), device); |
| 16 | |
| 17 | for (int i = 0; i < N; ++i) |
| 18 | hst_ptr[i] = 2; |
| 19 | |
| 20 | #pragma omp target teams distribute parallel for device(device) \ |
| 21 | map(tofrom : hst_ptr[0 : N]) |
| 22 | for (int i = 0; i < N; ++i) |
| 23 | hst_ptr[i] -= 1; |
| 24 | |
| 25 | int sum = 0; |
| 26 | for (int i = 0; i < N; ++i) |
| 27 | sum += hst_ptr[i]; |
| 28 | |
| 29 | llvm_omp_target_free_host(hst_ptr, device); |
| 30 | // CHECK: PASS |
| 31 | if (sum == N) |
| 32 | printf(format: "PASS\n"); |
| 33 | } |
| 34 |