offload/test/api/ompx_sync.c

   1 // RUN: %libomptarget-compile-run-and-check-generic
   2
   3 #include <omp.h>
   4 #include <ompx.h>
   5 #include <stdio.h>
   6
   7 void foo(int device) {
   8   int X;
   9   // clang-format off
  10 #pragma omp target teams map(from: X) device(device) thread_limit(2) num_teams(1)
  11 #pragma omp parallel
  12   // clang-format on
  13   {
  14     int tid = ompx_thread_id_x();
  15     int bid = ompx_block_id_x();
  16     if (tid == 1 && bid == 0) {
  17       X = 42;
  18       ompx_sync_block_divergent(3);
  19     } else {
  20       ompx_sync_block_divergent(1);
  21     }
  22     if (tid == 0 && bid == 0)
  23       X++;
  24     ompx_sync_block(ompx_seq_cst);
  25     if (tid == 1 && bid == 0)
  26       X++;
  27     ompx_sync_block_acq_rel();
  28     if (tid == 0 && bid == 0)
  29       X++;
  30     ompx_sync_block(ompx_release);
  31     if (tid == 0 && bid == 0)
  32       X++;
  33   }
  34   // CHECK: X: 46
  35   // CHECK: X: 46
  36   printf("X: %i\n", X);
  37 }
  38
  39 int main() {
  40   foo(omp_get_default_device());
  41   foo(omp_get_initial_device());
  42 }