[Bug tree-optimization/33434] [4.3 Regression] -fipa-cp miscompilation

[pinskia at gcc dot gnu dot org]

------- Comment #5 from pinskia at gcc dot gnu dot org  2007-10-20 00:18 -------
Try this one:
/* { dg-do run } */
/* { dg-options "-O3 -fipa-cp" } */

int k;

void f1 (int a, int b)
{
  if (a)
   {
     int c;
        goto d;
    do {
      k = 1;
d:
        c = b--;
        }while (c);
   }
  else
    if (b != 1)
      __builtin_abort ();
}

int main (void)
{
  f1 (1, 1);
  if (k != 1)
    __builtin_abort ();
  return 0;
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33434