The optimizer will be ported to .NET Native soon, it should help code quality quite a lot. The JIT is a completely different matter though: it's a different pro

The optimizer will be ported to .NET Native soon, it should help code quality quite a lot. The JIT is a completely different matter though: it's a different project, done by a different team - copy-paste of the source code is definitely not going to work. JIT compilers also have different priorities, unlikely they would port all parts of a large optimizer.