1  /* PR driver/107787 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2 -Werror=array-bounds=1" } */
       4  /* { dg-message "some warnings being treated as errors" "" {target "*-*-*"} 0 } */
       5  
       6  int a[10];     /* { dg-note "while referencing" } */
       7  
       8  int* f(void) {
       9  
      10      a[-1] = 0; /* { dg-error "is below array bounds" } */
      11  
      12      return a;
      13  }