libgomp/testsuite/libgomp.c/target-32.c

   1 #include <stdlib.h>
   2 #include <unistd.h>
   3
   4 int main ()
   5 {
   6   int a = 0, b = 0, c = 0, d[7];
   7
   8   #pragma omp parallel
   9   #pragma omp single
  10   {
  11     #pragma omp task depend(out: d[0])
  12       a = 2;
  13
  14     #pragma omp target enter data nowait map(to: a,b,c) depend(in: d[0]) depend(out: d[1])
  15
  16     #pragma omp target nowait map(alloc: a) depend(in: d[1]) depend(out: d[2])
  17       a++;
  18
  19     #pragma omp target nowait map(alloc: b) depend(in: d[2]) depend(out: d[3])
  20     {
  21       usleep (1000);
  22       #pragma omp atomic update
  23       b |= 4;
  24     }
  25
  26     #pragma omp target nowait map(alloc: b) depend(in: d[2]) depend(out: d[4])
  27     {
  28       usleep (5000);
  29       #pragma omp atomic update
  30       b |= 1;
  31     }
  32
  33     #pragma omp target nowait map(alloc: c) depend(in: d[3], d[4]) depend(out: d[5])
  34     {
  35       usleep (5000);
  36       #pragma omp atomic update
  37       c |= 8;
  38     }
  39
  40     #pragma omp target nowait map(alloc: c) depend(in: d[3], d[4]) depend(out: d[6])
  41     {
  42       usleep (1000);
  43       #pragma omp atomic update
  44       c |= 2;
  45     }
  46
  47     #pragma omp target exit data map(always,from: a,b,c) depend(in: d[5], d[6])
  48   }
  49
  50   if (a != 3 || b != 5 || c != 10)
  51     abort ();
  52
  53   return 0;
  54 }