[all-commits] [llvm/llvm-project] b24db8: [recurrence] Delete dead flag/fmf handling [NFC]

[Philip Reames via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b24db85c0b13cfb2f8e5a9f7ed445cdc7f05afd6
      https://github.com/llvm/llvm-project/commit/b24db85c0b13cfb2f8e5a9f7ed445cdc7f05afd6
  Author: Philip Reames <listmail at philipreames.com>
  Date:   2021-12-09 (Thu, 09 Dec 2021)

  Changed paths:
    M llvm/include/llvm/Transforms/Utils/LoopUtils.h
    M llvm/lib/Transforms/Utils/LoopUtils.cpp
    M llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp

  Log Message:
  -----------
  [recurrence] Delete dead flag/fmf handling [NFC]

The recurrence lowering code has handling which claims to be about flag intersection, but all the callers pass empty arrays to the arguments.  The sole exception is a caller of a method which has the argument, but no implementation.

I don't know what the intent was here, but it certaintly doesn't actually do anything today.