1  /* PR debug/98331 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-g -O2 -fcompare-debug" } */
       4  /* { dg-additional-options "-march=x86-64" { target { i?86-*-* x86_64-*-* } } } */
       5  
       6  void bar (const char *);
       7  unsigned long long x;
       8  
       9  void
      10  foo (void)
      11  {
      12    int a = 1;
      13    bar ("foo");
      14    int b = 2;
      15    __atomic_fetch_add (&x, 1, 0);
      16    int c = 3;
      17    __builtin_unreachable ();
      18  }