libgomp/testsuite/libgomp.oacc-c-c++-common/private-atomic-1.c

   1 // 'atomic' access of thread-private variable
   2
   3 /* { dg-additional-options "-fopt-info-note-omp" }
   4    { dg-additional-options "--param=openacc-privatization=noisy" }
   5    { dg-additional-options "-foffload=-fopt-info-note-omp" }
   6    { dg-additional-options "-foffload=--param=openacc-privatization=noisy" }
   7    for testing/documenting aspects of that functionality.  */
   8
   9 #include <assert.h>
  10
  11 int main (void)
  12 {
  13   int res;
  14
  15   res = 0;
  16 #pragma acc parallel reduction(+: res)
  17   /* { dg-note {variable 'i' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-1 } */
  18   {
  19 #pragma acc loop vector reduction(+: res)
  20     /* { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-1 } */
  21     /* { dg-note {variable 'v' declared in block is candidate for adjusting OpenACC privatization level} "" { target *-*-* } .-2 }
  22        { dg-note {variable 'v' ought to be adjusted for OpenACC privatization level: 'vector'} "" { target *-*-* } .-3 }
  23        { dg-note {variable 'v' adjusted for OpenACC privatization level: 'vector'} "" { target { ! openacc_host_selected } } .-4 } */
  24     /* { dg-note {variable 'j' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-5 } */
  25     for (int i = 0; i < 2322; i++)
  26     {
  27       int v = -222;
  28
  29 #pragma acc loop seq
  30       /* { dg-note {variable 'j' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} "" { target *-*-* } .-1 } */
  31       for (int j = 0; j < 121; ++j)
  32         {
  33 #pragma acc atomic update
  34           ++v;
  35         }
  36
  37       res += (v == -222 + 121);
  38     }
  39   }
  40   assert (res == 2322);
  41
  42   return 0;
  43 }