[llvm] [LoopInterchange] Supported partially-perfect Loop Nests (PR #199511)

[Ryotaro Kasuga via llvm-commits]

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@@ -265,10 +265,16 @@ static bool populateDependencyMatrix(CharMatrix &DepMatrix, unsigned Level,
           Dep.assign(Level, '*');
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kasuga-fj wrote:

Yeah, I think the test should be added.

https://github.com/llvm/llvm-project/pull/199511