[Bug c++/67650] undef reference with -fdevirtualize

[vincent.lextrait at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67650

--- Comment #13 from Vincent <vincent.lextrait at gmail dot com> ---
Indeed, that sounds like the same bug.
It took me an entire afternoon shrinking my case down to the code provided in
attachment, it was a needle in a huge haystack. I haven't been able to reduce
the code further. Even tiny changes which seem completely unrelated make the
bug disappear.
It looks very much like a front-end bug.
I am surprised there hasn't been any confirmation of the bug so far, and it has
been resting in bugzilla 7 months so far, only with updates saying it's not a
bug.