[llvm] [LoopInterchange] Add metadata to control loop-interchange (PR #127474)

[Michael Kruse via llvm-commits]

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@@ -299,6 +284,26 @@ static bool isComputableLoopNest(ScalarEvolution *SE,
 
 namespace {
 
+/// LoopInterchangeList manages the list of loops and the range to which the
+/// interchange may be applied.
+struct LoopInterchangeList {
+  SmallVector<Loop *, 8> LoopList;
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Meinersbur wrote:

Not specifiying the new order of the loops within the nest?

https://github.com/llvm/llvm-project/pull/127474