[llvm] [NVPTX] Add IR pass for FMA transformation in the llc pipeline (PR #154735)

[Rajat Bajpai via llvm-commits]

rajatbajpai wrote:

> This sounds like something that may be useful in general. Perhaps it makes sense to make it a generic pass. There's nothing in it that's NVPTX-specific.

Agreed. However, let’s first evaluate its usefulness in the NVPTX backend.

https://github.com/llvm/llvm-project/pull/154735