34 lines · c
1// RUN: %libomptarget-compile-run-and-check-generic2 3#include <omp.h>4#include <stdio.h>5 6// Allocate pinned memory on the host7void *llvm_omp_target_alloc_host(size_t, int);8void llvm_omp_target_free_host(void *, int);9 10int 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: PASS31 if (sum == N)32 printf("PASS\n");33}34