[llvm] [AMDGPU][wmma] - Add tied wmma intrinsic (PR #69903)

[Matt Arsenault via llvm-commits]

https://github.com/arsenm requested changes to this pull request.

I think you should avoid breaking up the underlying opcode name in the intrinsic with tied. Is there a better suffix you could use?

https://github.com/llvm/llvm-project/pull/69903