1 files changed, 12 insertions, 0 deletions
diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs
index 62f35333015..430bc7db077 100644
--- a/compiler/rustc_interface/src/passes.rs
+++ b/compiler/rustc_interface/src/passes.rs
@@ -1125,6 +1125,18 @@ pub(crate) fn start_codegen<'tcx>(
         }
     }
 
+    // This must run after monomorphization so that all generic types
+    // have been instantiated.
+    if tcx.sess.opts.unstable_opts.print_type_sizes {
+        tcx.sess.code_stats.print_type_sizes();
+    }
+
+    if tcx.sess.opts.unstable_opts.print_vtable_sizes {
+        let crate_name = tcx.crate_name(LOCAL_CRATE);
+
+        tcx.sess.code_stats.print_vtable_sizes(crate_name);
+    }
+
     codegen
 }