[Bug tree-optimization/98908] Failure to optimize arithmetic involving struct members into operating on the entire struct

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98908

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The second function is able to be optimized since GCC 9 with bswap producing:
  load_dst_16 = MEM <short unsigned int> [(unsigned char *)&x];