Bug in Quartus II

I'd rather have the name changed in an identifiable way(if you're register had ~inv added to the end, or something like that, it would probably at least let you know something was up). I'm not a fan of post-synthesis simulations not showing the inversion since it gets away from "how" something gets synthesized. (If you're doing AHDL, then there really is nothing equivalent to an RTL simulation, it always get synthesized into logic for simulation.)