If you care that much, you use intrinsics, asm in the C file, or asm to create an object you call into. Most of the code doesn't need nearly that level of opti

If you care that much, you use intrinsics, asm in the C file, or asm to create an object you call into. Most of the code doesn't need nearly that level of optimization, so you write it in a higher level language. Making your own compiler is a lot of work compared to just doing what I've outlined above. So you don't. I's not worth it, and you'd still end up back where you are.