Explains how compilers translate high-level language source code (like code written in Python) into low-level machine code (code that the computer can understand) to help readers understand how to produce the best low-level, computer readable machine code.

The second edition of the second volume in the highly-regarded Write Great Code series, teachinh readers how to produce better machine code by directing the actions of their chosen compiler. This second edition has been updated to cover high-level programming languages (such as Swift and Java) as well as code generation on 64-bit CPUsARM, the Java Virtual Machine, and the Microsoft Common Runtime.