[llvm-branch-commits] [llvm] release/22.x: [SystemZ] Remove custom lowering of f16 IS_FPCLASS (#187532) (PR #187943)

[Ulrich Weigand via llvm-branch-commits]

https://github.com/uweigand approved this pull request.

LGTM.   Bugfix to a feature new in 22.x, so would be good to get the fix there too.  (This will also help Rust, where the bug showed up initially.)

https://github.com/llvm/llvm-project/pull/187943