[Bug c/80632] error: invalid PHI argument with -O2

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80632

--- Comment #2 from David Binderman  ---
Reduced code:

a;
b() {
  int c;
  if (d()) {
e();
switch (a) {
case 0:
  c = 1;
  break;
case 1:
  c = 0;
  break;
case 2:
  c = 0;
  break;
case 3:
  c = 0;
  break;
default:
  c = 1;
}
  }
  return c;
}

[Bug c/80632] error: invalid PHI argument with -O2

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80632

--- Comment #1 from David Binderman  ---
This bugs seems to have appeared between revision 247534
and 247578.

I'll have a go at reducing it.