[all-commits] [llvm/llvm-project] c8e067: [Loops] Use forgetLcssaPhiWithNewPredecessor() in ...

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c8e0672864abf6fb624ddde5d6a1775d8634213a
      https://github.com/llvm/llvm-project/commit/c8e0672864abf6fb624ddde5d6a1775d8634213a
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2024-09-23 (Mon, 23 Sep 2024)

  Changed paths:
    M llvm/lib/Transforms/Utils/LoopConstrainer.cpp
    M llvm/lib/Transforms/Utils/LoopUnroll.cpp
    M llvm/lib/Transforms/Utils/LoopUnrollRuntime.cpp
    M llvm/lib/Transforms/Utils/LoopVersioning.cpp

  Log Message:
  -----------
  [Loops] Use forgetLcssaPhiWithNewPredecessor() in more places

Use the more aggressive invalidation method in a number of places
that add incoming values to lcssa phi nodes. It is likely that
it's possible to construct cases with incorrect SCEV preservation
similar to https://github.com/llvm/llvm-project/issues/109333 for
these.



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