1  /* PR target/94286 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2 -g" } */
       4  
       5  unsigned a, b;
       6  
       7  int
       8  foo (void)
       9  {
      10    return __builtin_sub_overflow (a, 0x80000000U, &b);
      11  }