Rollup merge of #79662 - bjorn3:move_more_code_out_of_codegen_backend, r=oli-obk

Move some more code out of CodegenBackend::{codegen_crate,link}

Kind of a follow up to #77795

compiler/rustc_interface/src/passes.rs

@@ -1013,6 +1013,23 @@ pub fn start_codegen<'tcx>(
         codegen_backend.codegen_crate(tcx, metadata, need_metadata_module)
     });
 
+    // Don't run these test assertions when not doing codegen. Compiletest tries to build
+    // build-fail tests in check mode first and expects it to not give an error in that case.
+    if tcx.sess.opts.output_types.should_codegen() {
+        rustc_incremental::assert_module_sources::assert_module_sources(tcx);
+        rustc_symbol_mangling::test::report_symbol_names(tcx);
+    }
+
+    tcx.sess.time("assert_dep_graph", || rustc_incremental::assert_dep_graph(tcx));
+    tcx.sess.time("serialize_dep_graph", || rustc_incremental::save_dep_graph(tcx));
+
+    // We assume that no queries are run past here. If there are new queries
+    // after this point, they'll show up as "<unknown>" in self-profiling data.
+    {
+        let _prof_timer = tcx.prof.generic_activity("self_profile_alloc_query_strings");
+        tcx.alloc_self_profile_query_strings();
+    }
+
     info!("Post-codegen\n{:?}", tcx.debug_stats());
 
     if tcx.sess.opts.output_types.contains_key(&OutputType::Mir) {

compiler/rustc_interface/src/queries.rs

@@ -403,6 +403,7 @@ impl Linker {
             return Ok(());
         }
 
+        let _timer = sess.prof.verbose_generic_activity("link_crate");
         self.codegen_backend.link(&self.sess, codegen_results, &self.prepare_outputs)
     }
 }