[llvm] [AMDGPU][GFX11] Add more test coverage for FMA instructions. (PR #65935)

[Joe Nash via llvm-commits]

Sisyph wrote:

>  Commit [79f52af](https://github.com/llvm/llvm-project/commit/79f52af4cd9a76485dd50bcdbb5d393eb7a70103) fixed the problem.
This commit is from  Nov 8, 2021. Maybe you linked the wrong one?


https://github.com/llvm/llvm-project/pull/65935