1  /* PR middle-end/85956 */
       2  /* { dg-do compile } */
       3  /* { dg-additional-options "-O2 -Wall" } */
       4  
       5  void
       6  foo (int n, void *p)
       7  {
       8    int (*a)[n] = (int (*)[n]) p;
       9    #pragma omp parallel shared(a) default(none)
      10    #pragma omp master
      11      a[-1][-1] = 42;	/* { dg-warning "array subscript -1 is below array bounds" } */
      12  }