The changes are mostly mechanical and the end result is that we no longer produce pointless moves between %hh and %rs registers.

They all use the same 16/32 bit PTX registers and there's no point creating more register classes for each. The changes are largely mechanical replacing *f16 register classes with i16/i32, with the exception of a minor optimization to the register copying. We now produce smaller number of pointless register moves.

The changes are mostly mechanical and the end result is that we no longery all use the same 16/32 bit PTX registers and there's no point creating more register classes for each. The changes are largely mechanical replacing *f16 register classes with i16/i32, with the exception of a minor optimization to the register copying. We now produce smaller number of pointless register moves. produce pointless moves between %hh and %rs registers.