https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118836
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- This is by design; without -fno-builtin, memcmp, memset, etc. become normal functions and they have unknown behaviors.