[llvm] [RISCV] Mark math functions as expanded for zvfhmin/zvfbfmin (PR #112508)

[Luke Lau via llvm-commits]

lukel97 wrote:

> Reasonable to me. Just one question, why is there no CodeGen change? I suppose we should have some.

I thought the same thing as well, but I couldn't find any existing CodeGen tests to extend. I guess the original commit that set them to expand was mainly testing that the vectorizers wouldn't emit any of these.

https://github.com/llvm/llvm-project/pull/112508