https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77472
--- Comment #7 from Jan Hubicka <hubicka at ucw dot cz> --- > I'm not sure what is the best way forward. > Maybe gcc should ignore __attribute__((flatten)) when using LTO > unconditionally? Well, I am not sure - flatten can make compiler explode without LTO, too, and I can imagine that in future one may want to do cross-module flattening. Of course we can document flatten as being applied at compile time only and eventually intorduce lto_flatten if need for link time flattening arrises, so existing codebases does not explode. Honza
