[compiler-rt] [llvm] [ORC][MachO] Use a per-graph compact-unwind dso_base (PR #208931)

[Yaxing Cai via llvm-commits]

cyx-6 wrote:

Hi @lhames, would you mind helping review this PR when you have a chance? I wonder if it is a sound patch to add. Thanks for attention to this:)

https://github.com/llvm/llvm-project/pull/208931