llvm-project

6eb96438 - [KnownFPClass] Refactor sNaN handling for KnownFPClass (#216086)

[KnownFPClass] Refactor sNaN handling for KnownFPClass (#216086) Addresses https://github.com/llvm/llvm-project/pull/215159#pullrequestreview-4898780491 I have added/modified some helpers to help with the handling of `sNaN` and `qNaN` propagation Changes: - Allow `atan2` to rule out `sNaN` instead of only `NaN` in general. - Renamed `Known.propagateNaN(KnownSrc)` to `Known.propagateNonNaN(KnownSrc)` - Added `Known.propagateNonSNaN(KnownSrc)` (same as `propagateNonNaN` but does not touch sign or `qNaN`) - Added two argument versions of `propagateNonNaN` and `propagateNonSNaN` Future plans: - Add `sNaN` handling for `sin`, `cos`, `tan`, and `log`.