[Bug c/87468] ice "wrong amount of branch edges after conditional jump in bb"

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87468

--- Comment #1 from David Binderman <dcb314 at hotmail dot com> ---

C source code is

a;
b() {
  int c = 1;
  for (; c <= 3;) {
    int d = e() && !0;
    switch (c)
    case 1:
      if (d)
      case 2:
      case 3:
        f();
    if (a)
      c++;
  }
}