[Bug tree-optimization/117031] Inefficient codegen of multistep zero-extends and LOAD_LANES

[tnfchris at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117031

--- Comment #7 from Tamar Christina <tnfchris at gcc dot gnu.org> ---
Indeed, checking this in get_group_load_store_type gets the result I am after.

I'll clean this up if that's OK with you?