[PATCH] D76210: [Attributor] AAReachability : use isPotentiallyReachable in isKnownReachable

[Shinji Okumura via Phabricator via llvm-commits]

okura created this revision.
okura added reviewers: jdoerfert, uenoku, sstefan1.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.
okura updated this revision to Diff 250462.
okura added a comment.

add and modify tests


`isKnownReachable` had only interface (always returns true).
 Changed it to call `isPotentiallyReachable`.
This change enables deductions of other Abstract Attributes depending on AAReachability to use reachability information obtained from CFG, and it can make them stronger.


https://reviews.llvm.org/D76210

Files:
  llvm/test/Transforms/Attributor/heap_to_stack.ll
  llvm/test/Transforms/Attributor/misc.ll
  llvm/test/Transforms/Attributor/noalias.ll

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