[PATCH] D86696: [Attributor][WIP] Introduce Loop AA

[Luofan Chen via Phabricator via llvm-commits]

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This function abstract attribute identifies whether the loops in a function are
"always-endless" or "never-endless". We can use such information to improve
the deduction of "willreturn" and undefined behavior.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D86696

Files:
  llvm/include/llvm/Transforms/IPO/Attributor.h
  llvm/lib/Transforms/IPO/Attributor.cpp
  llvm/lib/Transforms/IPO/AttributorAttributes.cpp

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