https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94932
--- Comment #3 from Arseny Solokha <asolokha at gmx dot com> --- I cannot reproduce it anymore w/ gcc-11.0.0-alpha20201129 snapshot (g:bb67ad5cff58a707aaae645d4f45a913d8511c86). gcc 10 and 11 now accept this code.
