[all-commits] [llvm/llvm-project] 0de9d9: [MLIR][arith] Fold or(a, or(a, b)) to or(a, b) (#2...

[Chibuoyim (Wilson) Ogbonna via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0de9d9a7639bf648f26896e23b1d4cc1dc0457ea
      https://github.com/llvm/llvm-project/commit/0de9d9a7639bf648f26896e23b1d4cc1dc0457ea
  Author: Chibuoyim (Wilson) Ogbonna <chibuoyim.faith.ogbonna at huawei.com>
  Date:   2026-10-03 (Sat, 03 Oct 2026)

  Changed paths:
    M mlir/lib/Dialect/Arith/IR/ArithOps.cpp
    M mlir/test/Dialect/Arith/canonicalize.mlir

  Log Message:
  -----------
  [MLIR][arith] Fold or(a, or(a, b)) to or(a, b) (#228386)

`arith.andi` already folds `and(a, and(a, b))` to `and(a, b)`, but
`arith.ori` doesn't perform the equivalent fold, so using canonicalize
misses this opportunity.

Generalize the existing helper and use it for both ops.

Co-authored-by: Matthias Springer <me at m-sp.org>



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