[Bug tree-optimization/33920] [4.3 Regression] Segfault in combine_blocks/tree-if-conv.c

["tbm at cyrius dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #1 from tbm at cyrius dot com  2007-10-27 14:16 -------
/* Testcase by Martin Michlmayr <tbm@cyrius.com> */

typedef union lispunion *object;
struct character
{
  long e;
};
extern struct symbol Cnil_body;
extern struct symbol Ct_body;
struct vector
{
  object *v_self;
};
union lispunion
{
  struct vector v;
};
void init_code ()
{
  object V659;
  object _x, _y;
  object V643;
  long V648;
  unsigned char V653;
  object V651;
  object V654;
  object V658;

T1240:
  if (V648 >= (long)V651)
    goto T1243;
  V653 = ((char *) V654->v.v_self)[V648];
  V659 = (object) V654 + V653;
T1261:
  V658 =
    (object)
     V659 ? (object) & Ct_body : (object) & Cnil_body;
  if (V658 == (object) & Cnil_body)
    goto T1249;
  goto T1224;
T1249:
 V648 = (long) V648 + 1;
  goto T1240;
T1243:
  V643 = (object) & Cnil_body;
T1224:
  _y = V643;
  number_plus (_x, _y);
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33920