[Bug bootstrap/107950] partial LTO linking of libbackend.a: gcc/gcc-rich-location.cc:207: undefined reference to `range_label_for_type_mismatch::get_text(unsigned int) const'

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107950

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
I wonder why the linker complains?  Isn't this like

t.h

class X { foo (); bar (); baz (); };

and splitting the foo/bar/baz implementations to three TUs and then linking
two of them partially?

That is, it looks like we reference the vtable but don't emit it here or
we end up with an ODR violation because somehow LTO thinks it can
privatize some of it?