[Bug target/77728] [5/6/7/8 Regression] Miscompilation multiple vector iteration on ARM

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77728

--- Comment #29 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Also, the aarch64_function_arg_alignment and arm_needs_doubleword_align
function comments need updating.