[llvm] [AMDGPU] Introduce "amdgpu-uniform-intrinsic-combine" pass to combine uniform AMDGPU lane Intrinsics. (PR #116953)

[Pankaj Dwivedi via llvm-commits]

PankajDwivedi-25 wrote:

> I am not sure what changes have been made to the function and module classes recently, but it affects what `F.users()` reports.
> 
> Isn't `F.users()` where F is a declaration function, reports the list of uses of this Function? @ssahasra @arsenm @jayfoad.

please ignore this.

merging as checks passed.

https://github.com/llvm/llvm-project/pull/116953