The guide will hopefully help you quickly graps the basics of LLVM. Links to useful self-learning article, video and tools will be listed below.
- http://www.aosabook.org/en/llvm.html
- What goes behind LLVM Compiler Infrastructure : Tanmay Bakshi https://youtu.be/IR_L1xf4PrU
- https://proglangdesign.net/wiki/llvm