https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66697
--- Comment #4 from Justas L <bucaneer at gmail dot com> --- I haven't tested this yet, but I understand this global solution would affect the performance of ALL functions, not only those that interface with outside code, correct? Wine already assigns the force_align_arg_pointer attribute to vulnerable functions, so making it work for x86_64 would be the better, less disruptive solution.