[Bug tree-optimization/36508] [4.3 Regression] ICE in compute_antic

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

------- Comment #7 from rguenth at gcc dot gnu dot org  2008-06-12 14:39 -------
The following fails with -O -ftree-pre:

void
foo (short *sp)
{
  int k;
  k = 1;
#define SP0 *sp++ = 1;
  while (1)
    {
      if (k > 6)
        break;
      SP0
      k++;
    }
  k = 1;
  while (1)
    {
      if (k > 6)
        break;
      SP0
      k++;
    }
#define SP1 SP0 SP0 SP0 SP0 SP0 SP0 SP0 SP0 SP0 SP0 SP0
#define SP2 SP1 SP1 SP1 SP1 SP1 SP1 SP1 SP1 SP1 SP1 SP1
  SP2
}


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36508