[Mlir-commits] [mlir] [mlir][loops] Add getters for multi dim loop variables in `LoopLikeOpInterface` (PR #94516)

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srcarroll wrote:

> Thanks for the explanation, this actually now makes sense to me to separate interfaces to cover the case when we cannot get the bounds. Both approaches can work, I won't block this PR is everyone else is fine with optional<>.

I'm still impartial to it, but i'm certainly no authority. would like to hear what others think too. 

I could maybe see the new interface being a kind of specialization of the existing `LoopLikeOpInterface`. but i really see no advantage of completely separate interface.

https://github.com/llvm/llvm-project/pull/94516