[Bug debug/42896] [4.5 Regression] Random debug generation differences, bootstrap fails

["rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #4 from rguenth at gcc dot gnu dot org  2010-01-29 14:04 -------
Needs randomized va-space to trigger.  My guess:

/* Determine a total order between two distinct pointers.  Compare the
   pointers as integral types if size_t is wide enough, otherwise
   resort to bitwise memory compare.  The actual order does not
   matter, we just need to be consistent, so endianness is
   irrelevant.  */

static int
tie_break_pointers (const void *p1, const void *p2)
{
  gcc_assert (p1 != p2);

  if (sizeof (size_t) >= sizeof (void*))
    return (size_t)p1 < (size_t)p2 ? -1 : 1;
  else
    return memcmp (&p1, &p2, sizeof (p1));
}


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42896