[Bug target/106602] riscv: suboptimal codegen for shift left, right, left

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106602

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
With ZBA_ZBB_ZBC_ZBS:
It is just:
foo2:
        slli.uw a0,a0,6
        ret

Which is good code gen :).