https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68649
--- Comment #11 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> --- (In reply to Jerry DeLisle from comment #10) > This PR is tagged as a regression. Has anyone determined when it last > worked or is it longstanding bug uncovered by recent non-fortran fe changes? For users it is a regression in the sense that packages that compiled with -flto -Werror with 5.3 will now stop building. The underlying FE issue is much older, I guess.