[all-commits] [llvm/llvm-project] 54a1e2: [mlir] Remove redundant DCE worklist visited set (...

[Mehdi Amini via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 54a1e2d5a588ecc20eeb5f326ba24d062cbd7eac
      https://github.com/llvm/llvm-project/commit/54a1e2d5a588ecc20eeb5f326ba24d062cbd7eac
  Author: Mehdi Amini <joker.eph at gmail.com>
  Date:   2026-05-04 (Mon, 04 May 2026)

  Changed paths:
    M mlir/lib/Transforms/Utils/RegionUtils.cpp

  Log Message:
  -----------
  [mlir] Remove redundant DCE worklist visited set (NFC) (#195662)

The eliminateTriviallyDeadOps worklist only enqueues operations after
checking that they are trivially dead. Dropping an operand before
testing the defining operation means a propagated enqueue happens only
when that defining operation has no remaining users.

During the simplification in #194041 I didn't simplify it far enough to
actually entirely remove the visited set, even though it isn't useful to
the algorithm right now.

Assisted-by: Codex



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