[llvm] [RISCV] Add FPR16 regbank and start legalizing f16 operations for Zfh. (PR #96582)

[Yingwei Zheng via llvm-commits]

https://github.com/dtcxzyw commented:

Oops, I already have an unsubmitted patch for half fp arith :) It was blocked by supporting half fp with only F or F + Zfhmin.

Do you plan to support other ops (fcmp/fconstant/fp<->fp/fp<->int)?


https://github.com/llvm/llvm-project/pull/96582