[Bug target/111926] RISC-V: Use vsetvl insn replace csrr vlenb insn

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111926

Kito Cheng <kito at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |kito at gcc dot gnu.org

--- Comment #1 from Kito Cheng <kito at gcc dot gnu.org> ---
Plz leave an option to let user has choice, performance things is hard to saw
which is absolutely better for all uarch, my thought is leaving an option and
let mtune and a command line option to control that.