https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118678
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Component|middle-end |target --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- I suspect it is the alignment is the reason why it is using movsl rather than movsq.