A bird's eye view of a compiler
summary
Overview of a compiler pipeline that parses source into tokens and an AST, lowers to IR, runs middle‑end analyses (constant folding, propagation, dead‑code elimination, loop‑invariant code motion, loop unrolling) and generates target code with register allocation and platform‑specific strategies; shows a Bison grammar + semantic actions to produce an AST, demonstrates SSA with phi nodes for easy dataflow, contrasts lowering classes/enums to JavaScript/C/assembly, and mentions built a front end in five days with LLVM to leverage its optimizers.
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chapters (8)
- 0:00Compiler overview
- 7:43Compiler pipeline
- 10:56Lexical and syntax analysis
- 25:08Intermediate representations
- 28:01Middle end optimizations
- 41:39Back end transformations
- 45:34Code generation
- 50:59Compiler applications
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