gcc/testsuite/c-c++-common/goacc/default-1.c

/* OpenACC default clause: valid syntax.  */

void f1 ()
{
#pragma acc kernels default (none)
  ;
#pragma acc parallel default (none)
  ;
#pragma acc serial default (none)
  ;

#pragma acc kernels default (present)
  ;
#pragma acc parallel default (present)
  ;
#pragma acc serial default (present)
  ;
}