[Bug ipa/88936] [7/8/9 Regression] -fipa-pta breaks bash (incorrect optimisation of recursive static function)

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88936

--- Comment #13 from Richard Biener <rguenth at gcc dot gnu.org> ---
Testcase using globals instead of parameters:

static int *p;
void bar(int cnt)
{
  int i = 0;
  if (cnt == 0)
    {
      p = &i;
      bar (1);
      if (i != 1)
        __builtin_abort ();
    }
  else if (cnt == 1)
    *p = 1;
}
int main()
{
  bar (0);
  return 0;
}