[llvm] [X86][NVPTX][LegalizeDAG] If i16 legal, legalize FABS/FNEG/FCOPYSIGN (f16) with Expand (PR #106153)

[via llvm-commits]

v01dXYZ wrote:

Indeed, [LangRef](https://llvm.org/docs/LangRef.html#llvm-fabs-intrinsic) clearly mentions the fact that only the bit sign is changed with fabs/fneg/fcopysign but say nothing about that with fpext/fptrunc. 

https://github.com/llvm/llvm-project/pull/106153