1 files changed, 0 insertions, 64 deletions
diff --git a/src/librustc_codegen_utils/codegen_backend.rs b/src/librustc_codegen_utils/codegen_backend.rs
deleted file mode 100644
index 96166e04c2e..00000000000
--- a/src/librustc_codegen_utils/codegen_backend.rs
+++ /dev/null
@@ -1,64 +0,0 @@
-//! The Rust compiler.
-//!
-//! # Note
-//!
-//! This API is completely unstable and subject to change.
-
-#![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
-
-use std::any::Any;
-
-use rustc::dep_graph::DepGraph;
-use rustc::middle::cstore::{EncodedMetadata, MetadataLoaderDyn};
-use rustc::session::config::{OutputFilenames, PrintRequest};
-use rustc::session::Session;
-use rustc::ty::query::Providers;
-use rustc::ty::TyCtxt;
-use rustc::util::common::ErrorReported;
-use rustc_span::symbol::Symbol;
-
-pub use rustc_data_structures::sync::MetadataRef;
-
-pub trait CodegenBackend {
-    fn init(&self, _sess: &Session) {}
-    fn print(&self, _req: PrintRequest, _sess: &Session) {}
-    fn target_features(&self, _sess: &Session) -> Vec<Symbol> {
-        vec![]
-    }
-    fn print_passes(&self) {}
-    fn print_version(&self) {}
-
-    fn metadata_loader(&self) -> Box<MetadataLoaderDyn>;
-    fn provide(&self, _providers: &mut Providers<'_>);
-    fn provide_extern(&self, _providers: &mut Providers<'_>);
-    fn codegen_crate<'tcx>(
-        &self,
-        tcx: TyCtxt<'tcx>,
-        metadata: EncodedMetadata,
-        need_metadata_module: bool,
-    ) -> Box<dyn Any>;
-
-    /// This is called on the returned `Box<dyn Any>` from `codegen_backend`
-    ///
-    /// # Panics
-    ///
-    /// Panics when the passed `Box<dyn Any>` was not returned by `codegen_backend`.
-    fn join_codegen(
-        &self,
-        ongoing_codegen: Box<dyn Any>,
-        sess: &Session,
-        dep_graph: &DepGraph,
-    ) -> Result<Box<dyn Any>, ErrorReported>;
-
-    /// This is called on the returned `Box<dyn Any>` from `join_codegen`
-    ///
-    /// # Panics
-    ///
-    /// Panics when the passed `Box<dyn Any>` was not returned by `join_codegen`.
-    fn link(
-        &self,
-        sess: &Session,
-        codegen_results: Box<dyn Any>,
-        outputs: &OutputFilenames,
-    ) -> Result<(), ErrorReported>;
-}