Ta-Wei Tu 6b612a7baf [NFC][LoopInterchange] Explicitly pass both InnerLoop and OuterLoop to processLoop
This is a split patch of D96644.

Explicitly pass both `InnerLoop` and `OuterLoop` to function `processLoop` to remove the need to swap elements in loop list and allow making loop list an `ArrayRef`.
Also, fix inconsistent spellings of `OuterLoopId` and `Inner Loop Id` in debug log.

Reviewed By: fhahn

Differential Revision: https://reviews.llvm.org/D96650
2021-02-16 22:17:44 +08:00
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