[Bug rtl-optimization/67072] Slow code generated for getting each byte of a 64bit register as a LUT index.

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67072

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Have you tried adding -march=intel ?