https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120156
--- Comment #7 from Stefan Schulze Frielinghaus <stefansf at gcc dot gnu.org> --- Brrr due to aggressive reduction t.ii became kind of invalid/incomplete which means the reduced test case errors out early for release branches 12 and 13. However, running the original tests from eigen for release branches 12 and 13 result in the same ICE. I guess going further backwards/bisecting isn't required for this bug. If you think otherwise just let me know.
