rustc_codegen_ssa/traits/
write.rs

1use std::any::Any;
2use std::path::PathBuf;
3
4use rustc_data_structures::profiling::SelfProfilerRef;
5use rustc_errors::DiagCtxtHandle;
6use rustc_middle::dep_graph::WorkProduct;
7use rustc_session::{Session, config};
8
9use crate::back::lto::ThinModule;
10use crate::back::write::{
11    CodegenContext, FatLtoInput, ModuleConfig, SharedEmitter, TargetMachineFactoryFn, ThinLtoInput,
12};
13use crate::{CompiledModule, ModuleCodegen};
14
15pub trait WriteBackendMethods: Clone + 'static {
16    type Module: Send + Sync;
17    type TargetMachine;
18    type ModuleBuffer: ModuleBufferMethods;
19    type ThinData: Send + Sync;
20
21    fn thread_profiler() -> Box<dyn Any> {
22        Box::new(())
23    }
24    fn target_machine_factory(
25        &self,
26        sess: &Session,
27        opt_level: config::OptLevel,
28        target_features: &[String],
29    ) -> TargetMachineFactoryFn<Self>;
30    /// Performs fat LTO by merging all modules into a single one, running autodiff
31    /// if necessary and running any further optimizations
32    fn optimize_and_codegen_fat_lto(
33        cgcx: &CodegenContext,
34        prof: &SelfProfilerRef,
35        shared_emitter: &SharedEmitter,
36        tm_factory: TargetMachineFactoryFn<Self>,
37        exported_symbols_for_lto: &[String],
38        each_linked_rlib_for_lto: &[PathBuf],
39        modules: Vec<FatLtoInput<Self>>,
40    ) -> CompiledModule;
41    /// Performs thin LTO by performing necessary global analysis and returning two
42    /// lists, one of the modules that need optimization and another for modules that
43    /// can simply be copied over from the incr. comp. cache.
44    fn run_thin_lto(
45        cgcx: &CodegenContext,
46        prof: &SelfProfilerRef,
47        dcx: DiagCtxtHandle<'_>,
48        exported_symbols_for_lto: &[String],
49        each_linked_rlib_for_lto: &[PathBuf],
50        modules: Vec<ThinLtoInput<Self>>,
51    ) -> (Vec<ThinModule<Self>>, Vec<WorkProduct>);
52    fn optimize(
53        cgcx: &CodegenContext,
54        prof: &SelfProfilerRef,
55        shared_emitter: &SharedEmitter,
56        module: &mut ModuleCodegen<Self::Module>,
57        config: &ModuleConfig,
58    );
59    fn optimize_and_codegen_thin(
60        cgcx: &CodegenContext,
61        prof: &SelfProfilerRef,
62        shared_emitter: &SharedEmitter,
63        tm_factory: TargetMachineFactoryFn<Self>,
64        thin: ThinModule<Self>,
65    ) -> CompiledModule;
66    fn codegen(
67        cgcx: &CodegenContext,
68        prof: &SelfProfilerRef,
69        shared_emitter: &SharedEmitter,
70        module: ModuleCodegen<Self::Module>,
71        config: &ModuleConfig,
72    ) -> CompiledModule;
73    fn serialize_module(module: Self::Module, is_thin: bool) -> Self::ModuleBuffer;
74}
75
76pub trait ModuleBufferMethods: Send + Sync {
77    fn data(&self) -> &[u8];
78}
rustc_codegen_ssa/traits/write.rs

rustc_codegen_ssa/traits/
write.rs
