offload/test/api/omp_device_managed_memory.c

   1 // RUN: %libomptarget-compile-run-and-check-generic
   2
   3 #include <omp.h>
   4 #include <stdio.h>
   5
   6 void *llvm_omp_target_alloc_shared(size_t, int);
   7 void llvm_omp_target_free_shared(void *, int);
   8
   9 int main() {
  10   const int N = 64;
  11   const int device = omp_get_default_device();
  12
  13   int *shared_ptr = llvm_omp_target_alloc_shared(N * sizeof(int), device);
  14
  15 #pragma omp target teams distribute parallel for device(device)                \
  16     is_device_ptr(shared_ptr)
  17   for (int i = 0; i < N; ++i) {
  18     shared_ptr[i] = 1;
  19   }
  20
  21   int sum = 0;
  22   for (int i = 0; i < N; ++i)
  23     sum += shared_ptr[i];
  24
  25   llvm_omp_target_free_shared(shared_ptr, device);
  26   // CHECK: PASS
  27   if (sum == N)
  28     printf("PASS\n");
  29 }