[Bug rtl-optimization/20017] [4.0 Regression] internal compiler error: in rtl_verify_flow_info, at cfgrtl.c:2212

["kazu at cs dot umass dot edu" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From kazu at cs dot umass dot edu  2005-02-17 02:02 -------
Reduced to:

int
foo (char *buf, unsigned int *p)
{
  unsigned int result;
  unsigned char ch2;
  unsigned char ch;
  const char * tmp;

  buf[0] = 35;
  tmp = buf;
  ch = (unsigned char) *tmp;
  result = 2;
  ch2 = (unsigned char) buf[1];
  if (ch2 <= 32)
    goto one;

  switch ((int) ch - 32)
    {
    case 1:
      goto L2;
    case 4:
    case 5:
    case 7:
    case 15:
      goto one;
    default:
      goto L7;
    }

 L2:
  result = *p;

 L7:
  if (result)
    goto one;

  return 0;

 one:
  return 1;
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20017