[llvm-branch-commits] [llvm] AMDGPU: Use minnum instead of maxnum for fmed3 src2-nan fold (PR #139531)

[Matt Arsenault via llvm-branch-commits]

arsenm wrote:

### Merge activity

* **May 12, 2:11 PM EDT**: A user started a stack merge that includes this pull request via [Graphite](https://app.graphite.dev/github/pr/llvm/llvm-project/139531).


https://github.com/llvm/llvm-project/pull/139531