https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63874
--- Comment #1 from Richard Earnshaw <rearnsha at gcc dot gnu.org> --- Sounds like this might be confusion between weak definitions and weak references. If we have a weak reference to the object, we cannot convert it into a pc-relative expression, since that would mean we couldn't detect NULL. However, if we have a non-weak reference to a weak object we can replace that with a pc-relative addressing mode, _provided_ that we can guarantee that the definition will appear in the same link unit (ie it's not part of building a DSO).
