https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71874
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Comment on attachment 38896 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38896 Code to reproduce bug Memmove comes from libc and in this case you got libc from redhat so you should report the bug to redhat.