[Bug target/126183] ix86_register_move_cost should consider TARGET_INTER_UNIT_MOVES_FROM_VEC/TARGET_INTER_UNIT_MOVES_TO_VEC

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126183

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
8bit/16bit moves can be done with zero-extending to 32bit and spilling that for
!TARGET_INTER_UNIT_MOVES_TO_VEC, likewise for the reverse.