[llvm] [MachineOutliner] Preserve regmasks in calls to outlined functions (PR #120940)

[Ellis Hoag via llvm-commits]

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

As described in this comment: https://discourse.llvm.org/t/loh-conflicting-with-machineoutliner/83279/12, I don't think it's correct to move LOH after the MachineOutliner. Therefore this PR is not needed.

https://github.com/llvm/llvm-project/pull/120940