https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85391
--- Comment #6 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > Sorry for overlooking the PR83983, I can help you with that next week. > Now I've got reduced 1/6 of preprocessed files. Hope that having a > reasonable small test-case would allow you do debug that and fix? No, sorry, I'm giving up, just revert my couple of changes instead.