[Bug other/78654] ubsan can lead to excessive stack usage

[clyon at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78654

--- Comment #1 from Christophe Lyon <clyon at gcc dot gnu.org> ---
Created attachment 40228
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40228&action=edit
preprocessed source from linux/crypto/serpent_generic.c