| // RUN: %compile-run-and-check |
| |
| #include <omp.h> |
| #include <stdio.h> |
| |
| #pragma omp declare target |
| static void putValueInParallel(int *ptr, int value) { |
| #pragma omp parallel |
| { |
| *ptr = value; |
| } |
| } |
| |
| static int getId() { |
| int id; |
| putValueInParallel(&id, omp_get_thread_num()); |
| return id; |
| } |
| #pragma omp end declare target |
| |
| const int MaxThreads = 1024; |
| const int Threads = 64; |
| |
| int main(int argc, char *argv[]) { |
| int master; |
| int check[MaxThreads]; |
| for (int i = 0; i < MaxThreads; i++) { |
| check[i] = 0; |
| } |
| |
| #pragma omp target map(master, check[:]) |
| { |
| master = getId(); |
| |
| #pragma omp parallel num_threads(Threads) |
| { |
| check[omp_get_thread_num()] = getId(); |
| } |
| } |
| |
| // CHECK: master = 0. |
| printf("master = %d.\n", master); |
| // CHECK-NOT: invalid |
| for (int i = 0; i < MaxThreads; i++) { |
| if (i < Threads) { |
| if (check[i] != i) { |
| printf("invalid: check[%d] should be %d, is %d\n", i, i, check[i]); |
| } |
| } else if (check[i] != 0) { |
| printf("invalid: check[%d] should be 0, is %d\n", i, check[i]); |
| } |
| } |
| |
| return 0; |
| } |