8.1: Introduction to Intermediate Code Generation
Read Chapter 7, which discusses generation to a relatively low-level intermediate language. Section 7.9 overlaps some of the previous readings.
Intermediate representation of a source program may be part of the front end, may be part of the back end, depending on the design of the compiler and its intended use, or may be simply called the "middle part" of the compiler between the front end and back end. Handout 23 covers IR in the context of code generation.