[PATCH] D96644: [NFC] Refactor LoopInterchange into a loop-nest pass

[Whitney Tsang via Phabricator via llvm-commits]

Whitney added a comment.

Can we have a separate patch for `Besides replacing Loop with LoopNest, this patch also removes the parameters OuterLoopId in many functions since it always has the value of InnerLoopId - 1.` first?


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  https://reviews.llvm.org/D96644/new/

https://reviews.llvm.org/D96644