[Bug target/112817] RISC-V: RVV: provide attribute riscv_rvv_vector_bits for VLS codegen

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112817

--- Comment #13 from Vineet Gupta <vineetg at gcc dot gnu.org> ---
Yeah Greg from Rivos started working on it. He'll update here as he makes
progress.