compiler/rustc_codegen_ssa/src/traits/write.rs

   1 use crate::back::lto::{LtoModuleCodegen, SerializedModule, ThinModule};
   2 use crate::back::write::{CodegenContext, FatLTOInput, ModuleConfig};
   3 use crate::{CompiledModule, ModuleCodegen};
   4
   5 use rustc_errors::{FatalError, Handler};
   6 use rustc_middle::dep_graph::WorkProduct;
   7
   8 pub trait WriteBackendMethods: 'static + Sized + Clone {
   9     type Module: Send + Sync;
  10     type TargetMachine;
  11     type TargetMachineError;
  12     type ModuleBuffer: ModuleBufferMethods;
  13     type ThinData: Send + Sync;
  14     type ThinBuffer: ThinBufferMethods;
  15
  16     /// Merge all modules into main_module and returning it
  17     fn run_link(
  18         cgcx: &CodegenContext<Self>,
  19         diag_handler: &Handler,
  20         modules: Vec<ModuleCodegen<Self::Module>>,
  21     ) -> Result<ModuleCodegen<Self::Module>, FatalError>;
  22     /// Performs fat LTO by merging all modules into a single one and returning it
  23     /// for further optimization.
  24     fn run_fat_lto(
  25         cgcx: &CodegenContext<Self>,
  26         modules: Vec<FatLTOInput<Self>>,
  27         cached_modules: Vec<(SerializedModule<Self::ModuleBuffer>, WorkProduct)>,
  28     ) -> Result<LtoModuleCodegen<Self>, FatalError>;
  29     /// Performs thin LTO by performing necessary global analysis and returning two
  30     /// lists, one of the modules that need optimization and another for modules that
  31     /// can simply be copied over from the incr. comp. cache.
  32     fn run_thin_lto(
  33         cgcx: &CodegenContext<Self>,
  34         modules: Vec<(String, Self::ThinBuffer)>,
  35         cached_modules: Vec<(SerializedModule<Self::ModuleBuffer>, WorkProduct)>,
  36     ) -> Result<(Vec<LtoModuleCodegen<Self>>, Vec<WorkProduct>), FatalError>;
  37     fn print_pass_timings(&self);
  38     unsafe fn optimize(
  39         cgcx: &CodegenContext<Self>,
  40         diag_handler: &Handler,
  41         module: &ModuleCodegen<Self::Module>,
  42         config: &ModuleConfig,
  43     ) -> Result<(), FatalError>;
  44     fn optimize_fat(
  45         cgcx: &CodegenContext<Self>,
  46         llmod: &mut ModuleCodegen<Self::Module>,
  47     ) -> Result<(), FatalError>;
  48     unsafe fn optimize_thin(
  49         cgcx: &CodegenContext<Self>,
  50         thin: ThinModule<Self>,
  51     ) -> Result<ModuleCodegen<Self::Module>, FatalError>;
  52     unsafe fn codegen(
  53         cgcx: &CodegenContext<Self>,
  54         diag_handler: &Handler,
  55         module: ModuleCodegen<Self::Module>,
  56         config: &ModuleConfig,
  57     ) -> Result<CompiledModule, FatalError>;
  58     fn prepare_thin(module: ModuleCodegen<Self::Module>) -> (String, Self::ThinBuffer);
  59     fn serialize_module(module: ModuleCodegen<Self::Module>) -> (String, Self::ModuleBuffer);
  60 }
  61
  62 pub trait ThinBufferMethods: Send + Sync {
  63     fn data(&self) -> &[u8];
  64 }
  65
  66 pub trait ModuleBufferMethods: Send + Sync {
  67     fn data(&self) -> &[u8];
  68 }