x86_64 architecture is a compiler functionality? [on hold]

I am interested in learning the exact meaning of this process of how a compiler build the code after development in this architecture of x86_64?

This architecture is the way how my code is executed on a product (hardware) ?

Based on what ? Developers build code in this kind of architecture ?

Is there any diagram or schema which describe the whole process of achitecture it self and the way from building to have a binary on this architecture ?