openmp/runtime/test/tasking/hidden_helper_task/single_helper_thread.c

   1 // RUN: %libomp-compile && env LIBOMP_NUM_HIDDEN_HELPER_THREADS=1 %libomp-run
   2
   3 // gcc/icc target offloading is incompatible with libomp
   4 // UNSUPPORTED: icc, gcc
   5
   6 // The test checks that "devide-by-0" bug fixed in runtime.
   7 // The fix is to increment number of threads by 1 if positive,
   8 // so that operation
   9 //   (gtid) % (__kmp_hidden_helper_threads_num - 1)
  10 // does not cause crash.
  11
  12 #include <stdio.h>
  13 #include <omp.h>
  14
  15 int main(){
  16 #pragma omp target nowait
  17    {
  18       printf("----- in  target region\n");
  19    }
  20   printf("------ before taskwait\n");
  21 #pragma omp taskwait
  22   printf("passed\n");
  23   return 0;
  24 }