https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77909
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED CC| |trippels at gcc dot gnu.org Resolution|--- |FIXED --- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- This was fixed by Jakub's patch: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=126636026724ab5faecb017cfaf9dabbd3754ef3 -Wimplicit-fallthrough=1 should fix all of your issues.