[llvm] AMDGPU: Do not tail call if an inreg argument requires waterfalling (PR #111002)

[Matt Arsenault via llvm-commits]

arsenm wrote:

### Merge activity

* **Oct 3, 4:03 PM EDT**: @arsenm started a stack merge that includes this pull request via [Graphite](https://app.graphite.dev/github/pr/llvm/llvm-project/111002).


https://github.com/llvm/llvm-project/pull/111002