[Bug target/108764] [RISCV] Cost model for RVB is too aggressive

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108764

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
        slli    a4,a2,3
        sh3add  a5,a2,a0

vs
        slli    a2,a2,3
        add     a5,a0,a2

I think the first one is better really because you have two indepedent
instructions and can be issued at the same time.
Really this is all core specific and the generic tuning should be "generic"
which means this is the correct tuning ...