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correct entry points for codegen

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mark 2020-04-14 16:30:48 -05:00 committed by Who? Me?!
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@ -371,7 +371,7 @@ bootstrapping compiler will support them.
- Main entry point: [`optimized_mir` query](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_mir/transform/fn.optimized_mir.html)
- Code Generation
- Guide: [Code Generation](https://rustc-dev-guide.rust-lang.org/codegen.html)
- Guide: [Generating LLVM IR](https://rustc-dev-guide.rust-lang.org/codegen.html#generating-llvm-ir) - **TODO: this is not available yet**
- Generating Machine Code from LLVM IR with LLVM - **TODO: reference?**
- Main entry point MIR -> LLVM IR: [`MonoItem::define`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_codegen_llvm/mono_item/enum.MonoItem.html#method.define)
- Main entry point LLVM IR -> Machine Code: [`rustc_codegen_ssa::base::codegen_crate`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_codegen_ssa/base/fn.codegen_crate.html)
- Main entry point: [`rustc_codegen_ssa::base::codegen_crate`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_codegen_ssa/base/fn.codegen_crate.html)
- This monomorphizes and produces LLVM IR for one codegen unit. It then starts a background thread to run LLVM, which must be joined later.
- Monomorphization happens lazily via [`FunctionCx::monomorphize`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_codegen_ssa/mir/struct.FunctionCx.html#method.monomorphize)