[llvm] [LV] Improve materialisation of VFxUF for scalable vectors (PR #216708)

[Ramkumar Ramachandra via llvm-commits]

================

----------------
artagnon wrote:

Hm, we're no longer computing (VF * vscale) * UF? I think we materialized VF as VF * UF now, and I think the fact that it works is incidental? A bit confused here?

https://github.com/llvm/llvm-project/pull/216708