Curated source guide

LLVM source explorer

Explore the LLVM compiler infrastructure source code. Study compiler design, optimization passes, code generation, and modern compiler architecture.

Guide chapters

1. Chapter 1 — Introduction to LLVM
2. Chapter 2 — LLVM IR and Code Generation
3. Chapter 3 — Clang Frontend
4. Chapter 4 — Optimization Passes

Key directories

• llvm/docs/ — LLVM Language Reference Manual
• llvm/include/llvm/IR/ — Base class for all LLVM IR values
• llvm/lib/IR/ — IR validity checking — learn the rules here
• llvm/lib/CodeGen/SelectionDAG/ — Instruction selection via SelectionDAG
• llvm/lib/Target/X86/ — x86 IR lowering (about 50,000 lines!)
• clang/docs/ — Introduction to the Clang AST