[Bug ipa/85447] [8 Regression] ICE in create_specialized_node, at ipa-cp.c:3870 since r259319

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85447

--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Reduced test-case:

typedef int a;
enum b : a;
class c {
public:
  enum { d };
  virtual b e(int *, int, const int *) = 0;
};
class f : c {
  b e(int *, int, const int *);
  b g();
};
b f::e(int *h, int i, const int *j) {
  if (i == d)
    return g();
  for (;;)
    e(h, i, j);
}
int k;
c *l;
void m() { l->e(&k, c::d, nullptr); }