https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78238
--- Comment #7 from janus at gcc dot gnu.org --- There were some "select type"-related commits by Paul and Jakub in October which could potentially be the culprit here: * r241403 (PR 69566) * r241450 (PR 69834) * r241630 (PR 78026)
