move core::hint::black_box under its own feature gate

[rust.git] / library / std / src / lib.rs

diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs
index 089d43483fcb3670c0dc57bb211d1bc34c7b4c53..0ab9f490fd4202b4f2e339fd612c99c06bdcdfad 100644 (file)
--- a/library/std/src/lib.rs
+++ b/library/std/src/lib.rs
@@ -233,6 +233,7 @@
 #![feature(assert_matches)]
 #![feature(associated_type_bounds)]
 #![feature(atomic_mut_ptr)]
+#![feature(bench_black_box)]
 #![feature(box_syntax)]
 #![feature(c_variadic)]
 #![feature(cfg_accessible)]