[Bug target/21518] [4.0/4.1 Regression] error: unable to find a register to spill in class 'Q_REGS' with -fPIC and -O2

["pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-05-11 21:23 -------
Confirmed, here is a testcase for before 4.0.0, if you use this testcase after 4.0.0, use -fno-tree-pre 
but that is because we missing a PRE opportunity right now (PR 21520) and if that gets fixed, the 
orginal testcase will not ICE any more:
static void __attribute__((regparm(3)))
drawPointsLines (char type, int first, int *dd) {*dd += 1;}

int do_locator (int *call)
{
  char prephitmp5;
  int type;
  int i;

  if (call == 0) {prephitmp5 = 1;}
  else
  {

  type = *call;
  i = 0;

do {
  if (i != type)
    drawPointsLines ((int) (char) type, 0, call);
  i = i + 1;
  } while (i != 2);
  
  prephitmp5 = (char) type;
}
  drawPointsLines ((int) prephitmp5, 0, call);
  return 0;
}


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
      Known to work|3.4.0                       |
   Last reconfirmed|0000-00-00 00:00:00         |2005-05-11 21:23:09
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21518