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@@ -19,21 +19,29 @@ and so the backend will probably start with levering C or Java. The following is a rough plan, subject to change. -The Common chapter defines code that will be reused throughout. - -The remaining chapters will each be self-sufficient and complete; in the sense that each chapter will fully implement -a subset of the simple language. Each chapter will also include a detailed commentary on relevant aspects of the +Each chapter will be self-sufficient and complete; in the sense that each chapter will fully implement +a subset of the simple language, and include everything that was created in the previous chapter. +Each chapter will also include a detailed commentary on relevant aspects of the Sea Of Nodes intermediate representation. The simple language will be a small subset of C. -* [Common](common/README.md): Common utilities including a lexer. -* [Language](language/README.md): Simple language definition. -* [Chapter 1](chapter01/README.md): Simple control flow statements, `if` and `while`. Variables of `int` type. Simple - arithmetic such as addition, subtraction, multiplication, division. Non-zero values will be truthy. -* Chapter 2: Function calls. -* Chapter 3: Comparison operators. -* Chapter 4: Boolean operators `&&`, `||` and `!`. -* Chapter 5: `float` and one dimensional static length array type. -* Chapter 6: Visualize Sea of Nodes IR. -* Chapter 7: Optimizations - tbc
\ No newline at end of file +* [Language](language/README.md): Simple language grammar. +* [Chapter 1](chapter01/README.md): Empty script - i.e. empty function that takes no args and returns nothing, and has empty body. +* Chapter 2: Simple binary arithmetic such as addition, subtraction, multiplication, division with constants. Peephole optimization / simple constant folding. +* Chapter 3: Graphical Visualization of Sea of Nodes IR. +* Chapter 4: Local variables, and assignment statements. Read on RHS, SSA, more peephole optimization if local is a constant. +* Chapter 5: Binary and Comparison operators involving constants and variables. Non-zero values will be truthy. +* Chapter 6: `if` statement. CFG construction, peephole optimization around dead control flow. +* Chapter 7: `while` statement. +* Chapter 8: Global Value Numbering. +* Chapter 9: Function calls. +* Chapter 10: Boolean operators `&&`, `||` and `!` including short circuit. +* Chapter 11: `float` type. +* Chapter 12: Memory effects: general memory edges in SSA. Peephole optimization around load-after-store/store-after-store. +* Chapter 13: Equivalence class aliasing, fine grained peephole optimizations. Free ptr-to analysis in SoN; but does not handle aliasing in arrays. +* Chapter 14: One dimensional static length array type. Array load/store. +* Chapter 15: Global Code Motion - unwind SoN to CFG. Scheduling. +* Chapter 16: Instruction selection, BURS. +* Chapter 17: Backend register allocation. +* Chapter 18: Garbage Collection.
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