[llvm] [AMDGPU] Support Wave Reduction for i16 types - 1 (PR #194808)

[Matt Arsenault via llvm-commits]

arsenm wrote:

> @arsenm are we not supposed to use the merge queues?

How is "FP Bundles" involved in merge queues? 

https://github.com/llvm/llvm-project/pull/194808