[llvm-branch-commits] [llvm] AtomicExpand: Copy metadata from atomicrmw to cmpxchg (PR #109409)

[Eli Friedman via llvm-branch-commits]

https://github.com/efriedma-quic commented:

I'm not sure we can assume all metadata which applies to an atomicrmw also makes sense on the generated cmpxchg.  I mean, most metadata probably does, but say we start allowing `!align` metadata on atomicrmw...

https://github.com/llvm/llvm-project/pull/109409