https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83941
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> --- So just use some needed bit on each DIE and only prune those which don't cary any additional information from their abstract origin and aren't referenced by anything? E.g. there is die_mark bit that could be used for these purposes.
