[llvm] [LSR] Add an addressing mode that considers all addressing modes (PR #158110)

[Nikita Popov via llvm-commits]

https://github.com/nikic commented:

This sounds reasonable to me, but I'd like the querying of the addressing mode to happen in a more robust way that doesn't require remembering that you always need to check for AMK_All as well.

Something like `AMK.contains(AMK_PreIndexed)` or so.

https://github.com/llvm/llvm-project/pull/158110