[Bug d/123798] d21: ICE: in output_constructor_regular_field, at varasm.cc:5500

[ibuclaw at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123798

--- Comment #1 from Iain Buclaw <ibuclaw at gcc dot gnu.org> ---
Doesn't require `class`.  Struct with a default initializer is enough.

```
struct bitfields
{
    int c = 1;
    int a : 4;
    long b : 8;
}
```