https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90191
--- Comment #5 from Dmitry G. Dyachenko <dimhen at gmail dot com> --- (In reply to Jeffrey A. Law from comment #4) > Actually I think the warning is valid. Ramping up the aggressiveness of the > threader is what ultimately exposes it. [...] > > But AFAICT the warning is 100% totally valid. You just have to turn up the > optimizer thresholds to expose it. Jeff, thank you for clarification. You are absolutely right -- my test is invalid. Sorry for over-reducing