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Implement incremental caching of object files

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This commit is contained in:
bjorn3 2020-03-11 15:18:01 +01:00
parent 1e074106e6
commit e4f1f3db27
2 changed files with 191 additions and 54 deletions
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16
src/lib.rs
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@ -21,7 +21,7 @@ extern crate rustc_ast;
use std::any::Any;
use rustc::dep_graph::DepGraph;
use rustc::dep_graph::{DepGraph, WorkProduct, WorkProductId};
use rustc::middle::cstore::{EncodedMetadata, MetadataLoader};
use rustc::session::config::OutputFilenames;
use rustc::ty::query::Providers;
@ -216,10 +216,16 @@ impl CodegenBackend for CraneliftCodegenBackend {
fn join_codegen(
&self,
ongoing_codegen: Box<dyn Any>,
_sess: &Session,
_dep_graph: &DepGraph,
sess: &Session,
dep_graph: &DepGraph,
) -> Result<Box<dyn Any>, ErrorReported> {
Ok(ongoing_codegen)
let (codegen_results, work_products) = *ongoing_codegen.downcast::<(CodegenResults, FxHashMap<WorkProductId, WorkProduct>)>().unwrap();
sess.time("serialize_work_products", move || {
rustc_incremental::save_work_product_index(sess, &dep_graph, work_products)
});
Ok(Box::new(codegen_results))
}
fn link(
@ -247,6 +253,8 @@ impl CodegenBackend for CraneliftCodegenBackend {
);
});
rustc_incremental::finalize_session_directory(sess, codegen_results.crate_hash);
Ok(())
}
}