[Bug c/79065] ARM generates ldm/stm on packed structs with aligned members

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79065

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
__attribute__((aligned(4)))

This causes the whole struct to become 4 byte aligned.