I would say it is a moving target if the goal is to write C code that compiles to a seemingly magical cpu instruction. As other have pointed out, learning assem

I would say it is a moving target if the goal is to write C code that compiles to a seemingly magical cpu instruction. As other have pointed out, learning assembly and compiler explorer are useful things. As a way to show the wonderful complexities of compilers check the TOC of https://shop.elsevier.com/books/optimizing-compilers-for-modern-architectures/allen/978-0-08-051324-9 https://shop.elsevier.com/books/optimizing-compilers-for-mod...