[llvm-branch-commits] [llvm] [X86] Add atomic vector tests for unaligned >1 sizes. (PR #120387)

[Matt Arsenault via llvm-branch-commits]

https://github.com/arsenm requested changes to this pull request.

Title change doesn't make sense. It's less useful to test the underlined cases. The baseline tests must include properly aligned atomics. Those are the case that we are interested in surviving until the DAG. The unaligned case are a separate point of interest as a supplemental test, but those are all expanded during AtomicExpand 

https://github.com/llvm/llvm-project/pull/120387