Stabilize `min_const_fn`

2 files changed, 2 insertions, 10 deletions

diff --git a/src/libsyntax/attr/builtin.rs b/src/libsyntax/attr/builtin.rs
index f1cec422420..1cc2e62a9c6 100644
--- a/src/libsyntax/attr/builtin.rs
+++ b/src/libsyntax/attr/builtin.rs
@@ -107,8 +107,7 @@ pub struct Stability {
     pub level: StabilityLevel,
     pub feature: Symbol,
     pub rustc_depr: Option<RustcDeprecation>,
-    /// `None` means the function is stable but needs to be allowed by the
-    /// `min_const_fn` feature
+    /// `None` means the function is stable but needs to be a stable const fn, too
     /// `Some` contains the feature gate required to be able to use the function
     /// as const fn
     pub const_stability: Option<Symbol>,
diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs
index adbe2f9d439..e854e3d6760 100644
--- a/src/libsyntax/feature_gate.rs
+++ b/src/libsyntax/feature_gate.rs
@@ -1806,9 +1806,6 @@ impl<'a> Visitor<'a> for PostExpansionVisitor<'a> {
                 if header.asyncness.is_async() {
                     gate_feature_post!(&self, async_await, span, "async fn is unstable");
                 }
-                if header.constness.node == ast::Constness::Const {
-                    gate_feature_post!(&self, min_const_fn, span, "const fn is unstable");
-                }
                 // stability of const fn methods are covered in
                 // visit_trait_item and visit_impl_item below; this is
                 // because default methods don't pass through this
@@ -1863,11 +1860,7 @@ impl<'a> Visitor<'a> for PostExpansionVisitor<'a> {
         }
 
         match ii.node {
-            ast::ImplItemKind::Method(ref sig, _) => {
-                if sig.header.constness.node == ast::Constness::Const {
-                    gate_feature_post!(&self, min_const_fn, ii.span, "const fn is unstable");
-                }
-            }
+            ast::ImplItemKind::Method(..) => {}
             ast::ImplItemKind::Existential(..) => {
                 gate_feature_post!(
                     &self,