[PATCH] D107773: LoopNest Analysis expansion to return instructions that prevent a Loop Nest from being perfect

[Mark Danial via Phabricator via llvm-commits]

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Expand LoopNestAnalysis to return the full list of instructions that cause a loop nest to be imperfect. This is useful for other passes to know if they should continue for in the inner loops.
Added New function

  getInterveningInstructions
  ``` that returns a small vector with the instructions that prevent a loop for being perfect. Also added a couple of helper functions to reduce code duplication.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D107773

Files:
  llvm/include/llvm/Analysis/LoopNestAnalysis.h
  llvm/lib/Analysis/LoopNestAnalysis.cpp
  llvm/unittests/Analysis/LoopNestTest.cpp

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