[all-commits] [llvm/llvm-project] 3e99aa: [PredicateInfo] Clean up DFS sorting (NFC) (#144943)

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3e99aa6c0a36ec4d6f126882b1a06436767cbf73
      https://github.com/llvm/llvm-project/commit/3e99aa6c0a36ec4d6f126882b1a06436767cbf73
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2025-06-20 (Fri, 20 Jun 2025)

  Changed paths:
    M llvm/lib/Transforms/Utils/PredicateInfo.cpp

  Log Message:
  -----------
  [PredicateInfo] Clean up DFS sorting (NFC) (#144943)

The comparison function for ValueDFS was confused in a number of ways.
Most significantly, it had a bunch of logic based on Def -- however, Def
is always null during sorting, it only gets set later. At this point
defs only have PInfo set.

Clean up the implementation to remove various dead code.



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