[llvm] [AMDGPU][TTI] Add Target Hook for Instruction Uniformity (getInstructionUniformity) (PR #137639)

[Pankaj Dwivedi via llvm-commits]

PankajDwivedi-25 wrote:

Right, this is initial patch.

Right now it doesn't do anything more than already there.

I was looking for two things here.

1. Intrinsic list whose uniformity depends on operand.
2. How to get the operand uniformity at this point.

https://github.com/llvm/llvm-project/pull/137639