diff --git a/doc/Memory.md b/doc/Memory.md index 733be5bacea2051c15bf1c58ee02093244186395..4e2e0a6f8b398085d9e7b768fc64586e69c6eb0f 100644 --- a/doc/Memory.md +++ b/doc/Memory.md @@ -89,7 +89,6 @@ In short, the complilation process follows: * this processes the .rs files and produces the AST ("abstract syntax tree") * the AST is defined in syntax/ast.rs. It is intended to match the lexical syntax of the Rust language quite closely. - 2 Name resolution, macro expansion, and configuration * once parsing is complete, we process the AST recursively, resolving paths and expanding macros. This same process also processes `#[cfg]` nodes, and hence may strip things out of the AST as well. @@ -97,19 +96,20 @@ In short, the complilation process follows: * Once name resolution completes, we convert the AST into the HIR, or "high-level IR". * The HIR is a lightly desugared variant of the AST. It is more processed than the AST and more suitable for the analyses that follow. - 4 Type-checking and subsequent analyses - * An important step in processing the HIR is to perform type checking. This process assigns types to every HIR expression, and also is responsible for resolving some "type-dependent" paths, such as field accesses (`x.f`) + * An important step in processing the HIR is to perform type checking. This process assigns types to every HIR expression, and also is responsible for resolving some "type-dependent" paths, such as field accesses (`x.f`) 5 Lowering to MIR and post-processing + Once type-checking is done, we can lower the HIR into MIR ("middle IR"), which is a very desugared version of Rust. Here is where the borrow checking is done!!!! - 6 Translation to LLVM and LLVM optimizations + From MIR, we can produce LLVM IR. LLVM then runs its various optimizations, which produces a number of .o files (one for each "codegen unit"). 7 Linking + Finally, those .o files are linked together. ### LLVM