[all-commits] [llvm/llvm-project] 0fd81e: [VectorUtils] Add helper to get list of metadata t...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0fd81e5f4614dc28cd1557a3d5a6a9d2c271d497
      https://github.com/llvm/llvm-project/commit/0fd81e5f4614dc28cd1557a3d5a6a9d2c271d497
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2025-04-09 (Wed, 09 Apr 2025)

  Changed paths:
    M llvm/lib/Analysis/VectorUtils.cpp

  Log Message:
  -----------
  [VectorUtils] Add helper to get list of metadata to propagate (NFC). (#135003)

Split off the logic to filter out metadata that should not be propagated
to a helper that populates a list with metadata kinds that should be
preserved.

The current version just uses is_contained on an array to check if a
metadata kind is supported. Given that most instructions will only have
a small number of metadata kinds to start with, this shouldn't be worse
than iterating over all kinds once and querying the instruction for
individual metadata kinds, which involves quite a bit of indirection.

I plan ot use this utility in a follow-up patch in other places as well.

PR: https://github.com/llvm/llvm-project/pull/135003



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