[clang] [llvm] [mlir] Enforce single-operand form for llvm.loop.distribute metadata (PR #201077)

[Michael Kruse via cfe-commits]

https://github.com/Meinersbur approved this pull request.

LGTM

There is currently a merge conflict with HEAD. After solving, please give @arsenm a chance to respond as well before landing.

https://github.com/llvm/llvm-project/pull/201077