[PATCH] D116612: [LoopFlatten] Move it from LPM2 to LPM1

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

Could you please add a PhaseOrdering test that demonstrates the issue?



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Comment at: llvm/lib/Transforms/Scalar/LoopFlatten.cpp:828
+  PA.preserve<MemorySSAAnalysis>();
+  return PA;
 }
----------------
This is very likely not correct without additional changes. This pass changes control flow, and that usually requires updates to MSSA as well.


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https://reviews.llvm.org/D116612