Enum rustc_codegen_ssa::back::write::Message

pub(crate) enum Message<B: WriteBackendMethods> {
    Token(Result<Acquired>),
    WorkItem {
        result: Result<WorkItemResult<B>, Option<WorkerFatalError>>,
        worker_id: usize,
    },
    CodegenDone {
        llvm_work_item: WorkItem<B>,
        cost: u64,
    },
    AddImportOnlyModule {
        module_data: SerializedModule<B::ModuleBuffer>,
        work_product: WorkProduct,
    },
    CodegenComplete,
    CodegenAborted,
}

Messages sent to the coordinator.

Variants

Token(Result<Acquired>)

A jobserver token has become available. Sent from the jobserver helper thread.

WorkItem

Fields

result: Result<WorkItemResult<B>, Option<WorkerFatalError>>

worker_id: usize

The backend has finished processing a work item for a codegen unit. Sent from a backend worker thread.

CodegenDone

Fields

llvm_work_item: WorkItem<B>

cost: u64

The frontend has finished generating something (backend IR or a post-LTO artifact) for a codegen unit, and it should be passed to the backend. Sent from the main thread.

AddImportOnlyModule

Fields

module_data: SerializedModule<B::ModuleBuffer>

work_product: WorkProduct

Similar to CodegenDone, but for reusing a pre-LTO artifact Sent from the main thread.

CodegenComplete

The frontend has finished generating everything for all codegen units. Sent from the main thread.

CodegenAborted

Some normal-ish compiler error occurred, and codegen should be wound down. Sent from the main thread.

Layout

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.