[Bug middle-end/67351] Missed optimisation on 64-bit field compared to 32-bit

[linux at carewolf dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67351

--- Comment #1 from Allan Jensen <linux at carewolf dot com> ---
Created attachment 36254
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36254&action=edit
Compiled test assembler