https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124608
--- Comment #20 from Richard Biener <rguenth at gcc dot gnu.org> --- Picking both r15-7753-ge6037af6d5e5a4 and r16-7968-g27b4500ec3f97e doesn't help. On the 14 branch this issue doesn't reproduce, so in theory it might be possible to bisect what fixed it if one can find a point on the (development) branch where the backport fails.
