[llvm] [CodeGen] Merge ExpandLargeDivRem into ExpandFp (PR #172680)

[Frederik Harwath via llvm-commits]

frederik-h wrote:

### Merge activity

* **Dec 18, 7:42 AM UTC**: A user started a stack merge that includes this pull request via [Graphite](https://app.graphite.com/github/pr/llvm/llvm-project/172680).


https://github.com/llvm/llvm-project/pull/172680