[all-commits] [llvm/llvm-project] c92ff6: [Local] Move OverflowTracking to Local.h, move log...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c92ff61cee858d0b28f2c3187baa29dd61eb6d87
      https://github.com/llvm/llvm-project/commit/c92ff61cee858d0b28f2c3187baa29dd61eb6d87
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2025-05-19 (Mon, 19 May 2025)

  Changed paths:
    M llvm/include/llvm/Transforms/Scalar/Reassociate.h
    M llvm/include/llvm/Transforms/Utils/Local.h
    M llvm/lib/Transforms/Scalar/Reassociate.cpp
    M llvm/lib/Transforms/Utils/Local.cpp

  Log Message:
  -----------
  [Local] Move OverflowTracking to Local.h, move logic to helpers (NFC) (#140403)

Move parts of the logic used by Reassociate to OverflowTracking
(mergeFlags & applyFlags) and move the definition to Local.h.

For now it just moves the NUW/NSW handling, as this matches the uses in
LICM. I'll look into the FP math handling separately, as it looks like
there's a difference between Reassociate (takes all flags from I, while
LICM takes the intersection of the flags on both instructions).

PR: https://github.com/llvm/llvm-project/pull/140403



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