rustc_codegen_ssa/traits/
write.rs

1use std::path::PathBuf;
2
3use rustc_errors::DiagCtxtHandle;
4use rustc_middle::dep_graph::WorkProduct;
5
6use crate::back::lto::{SerializedModule, ThinModule};
7use crate::back::write::{CodegenContext, FatLtoInput, ModuleConfig};
8use crate::{CompiledModule, ModuleCodegen};
9
10pub trait WriteBackendMethods: Clone + 'static {
11    type Module: Send + Sync;
12    type TargetMachine;
13    type TargetMachineError;
14    type ModuleBuffer: ModuleBufferMethods;
15    type ThinData: Send + Sync;
16    type ThinBuffer: ThinBufferMethods;
17
18    /// Performs fat LTO by merging all modules into a single one, running autodiff
19    /// if necessary and running any further optimizations
20    fn run_and_optimize_fat_lto(
21        cgcx: &CodegenContext<Self>,
22        exported_symbols_for_lto: &[String],
23        each_linked_rlib_for_lto: &[PathBuf],
24        modules: Vec<FatLtoInput<Self>>,
25    ) -> ModuleCodegen<Self::Module>;
26    /// Performs thin LTO by performing necessary global analysis and returning two
27    /// lists, one of the modules that need optimization and another for modules that
28    /// can simply be copied over from the incr. comp. cache.
29    fn run_thin_lto(
30        cgcx: &CodegenContext<Self>,
31        exported_symbols_for_lto: &[String],
32        each_linked_rlib_for_lto: &[PathBuf],
33        modules: Vec<(String, Self::ThinBuffer)>,
34        cached_modules: Vec<(SerializedModule<Self::ModuleBuffer>, WorkProduct)>,
35    ) -> (Vec<ThinModule<Self>>, Vec<WorkProduct>);
36    fn print_pass_timings(&self);
37    fn print_statistics(&self);
38    fn optimize(
39        cgcx: &CodegenContext<Self>,
40        dcx: DiagCtxtHandle<'_>,
41        module: &mut ModuleCodegen<Self::Module>,
42        config: &ModuleConfig,
43    );
44    fn optimize_thin(
45        cgcx: &CodegenContext<Self>,
46        thin: ThinModule<Self>,
47    ) -> ModuleCodegen<Self::Module>;
48    fn codegen(
49        cgcx: &CodegenContext<Self>,
50        module: ModuleCodegen<Self::Module>,
51        config: &ModuleConfig,
52    ) -> CompiledModule;
53    fn prepare_thin(module: ModuleCodegen<Self::Module>) -> (String, Self::ThinBuffer);
54    fn serialize_module(module: ModuleCodegen<Self::Module>) -> (String, Self::ModuleBuffer);
55}
56
57pub trait ThinBufferMethods: Send + Sync {
58    fn data(&self) -> &[u8];
59}
60
61pub trait ModuleBufferMethods: Send + Sync {
62    fn data(&self) -> &[u8];
63}
rustc_codegen_ssa/traits/write.rs

rustc_codegen_ssa/traits/
write.rs
