openmp/libomptarget/deviceRTLs/nvptx/test/parallel/tripcount.c

   1 // RUN: %compile-run-and-check
   2
   3 #include <omp.h>
   4 #include <stdio.h>
   5
   6 int main() {
   7   int res = 0;
   8
   9 #pragma omp parallel num_threads(2) reduction(+:res)
  10   {
  11     int tid = omp_get_thread_num();
  12 #pragma omp target teams distribute reduction(+:res)
  13     for (int i = tid; i < 2; i++)
  14       ++res;
  15   }
  16   // The first thread makes 2 iterations, the second - 1. Expected result of the
  17   // reduction res is 3.
  18
  19   // CHECK: res = 3.
  20   printf("res = %d.\n", res);
  21   return 0;
  22 }