[Mlir-commits] [mlir] [mlir][AMDGPU] Add PermlaneOp (PR #154345)

[Tim Gymnich]

tgymnich wrote:

@krzysz00  The current design allows for the addition of future permlane variants like: up, down, bcast, idx_gen, xor. For the rdna variants like `permlane16`, `permlanex16`, `permlane32`, `permlane64` we could add a `custom` `PermlanePerm` exposing the `src1` and `src2` as optional attributes. Or we could use the rdna variants to implement the existing `PermlanePerm`.

https://github.com/llvm/llvm-project/pull/154345