It's maybe a little nicer for assembly programmers, but x86 is not that bad any more, and the predication and auto-shifting features in ARM are not that easy to

It's maybe a little nicer for assembly programmers, but x86 is not that bad any more, and the predication and auto-shifting features in ARM are not that easy to deal with for compilers. The main thing that may be problematic for x86 is that the individual cores may get smaller and simpler, which means that the decoding hardware will take up a proportionally higher portion of each one.