Use get_many_mut to reduce the cost of setup ping check cfg values

2022-06-02 15:39:16 +02:00
parent a4cec9742b
commit 5f042811a2
2 changed files with 90 additions and 34 deletions
--- a/compiler/rustc_session/src/lib.rs
+++ b/compiler/rustc_session/src/lib.rs
@@ -6,6 +6,7 @@
 #![feature(once_cell)]
 #![feature(option_get_or_insert_default)]
 #![feature(rustc_attrs)]
+#![cfg_attr(not(bootstrap), feature(map_many_mut))]
 #![recursion_limit = "256"]
 #![allow(rustc::potential_query_instability)]