[llvm] [NVPTX] Custom lower integer<->bf16 conversions for sm_80 (PR #74827)

[Artem Belevich via llvm-commits]

https://github.com/Artem-B approved this pull request.

LGTM in general, but I'm curious whether FP_TO_BF16 and BF16_TO_FP would produce better/worse/same SASS for these conversions.

https://github.com/llvm/llvm-project/pull/74827