Subversion Repositories openrisc

/* Test that __builtin_prefetch does no harm.

   Prefetch using some invalid rw and locality values.  These must be

   compile-time constants.  */

/* { dg-do run } */

extern void exit (int);

enum locality { none, low, moderate, high, bogus };

enum rw { read, write };

int arr[10];

void

good (int *p)

{

  __builtin_prefetch (p, 0, 0);

  __builtin_prefetch (p, 0, 1);

  __builtin_prefetch (p, 0, 2);

  __builtin_prefetch (p, 0, 3);

  __builtin_prefetch (p, 1, 0);

  __builtin_prefetch (p, 1, 1);

  __builtin_prefetch (p, 1, 2);

  __builtin_prefetch (p, 1, 3);

}

void

bad (int *p)

{

  __builtin_prefetch (p, -1, 0);  /* { dg-warning "invalid second argument to '__builtin_prefetch'; using zero" } */

  __builtin_prefetch (p, 2, 0);   /* { dg-warning "invalid second argument to '__builtin_prefetch'; using zero" } */

  __builtin_prefetch (p, bogus, 0);   /* { dg-warning "invalid second argument to '__builtin_prefetch'; using zero" } */

  __builtin_prefetch (p, 0, -1);  /* { dg-warning "invalid third argument to '__builtin_prefetch'; using zero" } */

  __builtin_prefetch (p, 0, 4);   /* { dg-warning "invalid third argument to '__builtin_prefetch'; using zero" } */

  __builtin_prefetch (p, 0, bogus);   /* { dg-warning "invalid third argument to '__builtin_prefetch'; using zero" } */

}

int

main ()

{

  good (arr);

  bad (arr);

  exit (0);

}