[PATCH] D97828: [LoopInterchange] Disallow interchange when memory accesses are guarded by control flow (PR48057)

[Whitney Tsang via Phabricator via llvm-commits]

Whitney added inline comments.


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Comment at: llvm/lib/Transforms/Scalar/LoopInterchange.cpp:1020
 
+  // Check if either outer and inner loop contains instructions guarded by
+  // control flow that have side effects.
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In what scenario, outer loop contains instructions guarded by control flow?
(I assume loop interchange operate on tight loops.)


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