Stabilize new_zeroed_alloc

Author: thaliaarchi

compiler/rustc_index/src/bit_set.rs

@@ -629,14 +629,14 @@ impl<T: Idx> ChunkedBitSet<T> {
         match *chunk {
             Zeros(chunk_domain_size) => {
                 if chunk_domain_size > 1 {
-                    #[cfg(feature = "nightly")]
+                    #[cfg(any(feature = "nightly", bootstrap))]
                     let mut words = {
                         // We take some effort to avoid copying the words.
                         let words = Rc::<[Word; CHUNK_WORDS]>::new_zeroed();
                         // SAFETY: `words` can safely be all zeroes.
                         unsafe { words.assume_init() }
                     };
-                    #[cfg(not(feature = "nightly"))]
+                    #[cfg(not(any(feature = "nightly", bootstrap)))]
                     let mut words = {
                         // FIXME: unconditionally use `Rc::new_zeroed` once it is stable (#63291).
                         let words = mem::MaybeUninit::<[Word; CHUNK_WORDS]>::zeroed();

compiler/rustc_index/src/lib.rs

@@ -3,7 +3,7 @@
 #![cfg_attr(feature = "nightly", allow(internal_features))]
 #![cfg_attr(feature = "nightly", feature(extend_one, step_trait, test))]
 #![cfg_attr(feature = "nightly", feature(new_range_api))]
-#![cfg_attr(feature = "nightly", feature(new_zeroed_alloc))]
+#![cfg_attr(all(feature = "nightly", not(bootstrap)), feature(new_zeroed_alloc))]
 // tidy-alphabetical-end
 
 pub mod bit_set;

library/alloc/src/boxed.rs

@@ -290,8 +290,6 @@ impl<T> Box<T> {
     /// # Examples
     ///
     /// ```
-    /// #![feature(new_zeroed_alloc)]
-    ///
     /// let zero = Box::<u32>::new_zeroed();
     /// let zero = unsafe { zero.assume_init() };
     ///
@@ -301,7 +299,7 @@ impl<T> Box<T> {
     /// [zeroed]: mem::MaybeUninit::zeroed
     #[cfg(not(no_global_oom_handling))]
     #[inline]
-    #[unstable(feature = "new_zeroed_alloc", issue = "129396")]
+    #[stable(feature = "new_zeroed_alloc", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     pub fn new_zeroed() -> Box<mem::MaybeUninit<T>> {
         Self::new_zeroed_in(Global)
@@ -660,8 +658,6 @@ impl<T> Box<[T]> {
     /// # Examples
     ///
     /// ```
-    /// #![feature(new_zeroed_alloc)]
-    ///
     /// let values = Box::<[u32]>::new_zeroed_slice(3);
     /// let values = unsafe { values.assume_init() };
     ///
@@ -670,7 +666,7 @@ impl<T> Box<[T]> {
     ///
     /// [zeroed]: mem::MaybeUninit::zeroed
     #[cfg(not(no_global_oom_handling))]
-    #[unstable(feature = "new_zeroed_alloc", issue = "129396")]
+    #[stable(feature = "new_zeroed_alloc", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     pub fn new_zeroed_slice(len: usize) -> Box<[mem::MaybeUninit<T>]> {
         unsafe { RawVec::with_capacity_zeroed(len).into_box(len) }

library/alloc/src/rc.rs

@@ -515,8 +515,6 @@ impl<T> Rc<T> {
     /// # Examples
     ///
     /// ```
-    /// #![feature(new_zeroed_alloc)]
-    ///
     /// use std::rc::Rc;
     ///
     /// let zero = Rc::<u32>::new_zeroed();
@@ -527,7 +525,7 @@ impl<T> Rc<T> {
     ///
     /// [zeroed]: mem::MaybeUninit::zeroed
     #[cfg(not(no_global_oom_handling))]
-    #[unstable(feature = "new_zeroed_alloc", issue = "129396")]
+    #[stable(feature = "new_zeroed_alloc", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     pub fn new_zeroed() -> Rc<mem::MaybeUninit<T>> {
         unsafe {
@@ -1054,8 +1052,6 @@ impl<T> Rc<[T]> {
     /// # Examples
     ///
     /// ```
-    /// #![feature(new_zeroed_alloc)]
-    ///
     /// use std::rc::Rc;
     ///
     /// let values = Rc::<[u32]>::new_zeroed_slice(3);
@@ -1066,7 +1062,7 @@ impl<T> Rc<[T]> {
     ///
     /// [zeroed]: mem::MaybeUninit::zeroed
     #[cfg(not(no_global_oom_handling))]
-    #[unstable(feature = "new_zeroed_alloc", issue = "129396")]
+    #[stable(feature = "new_zeroed_alloc", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     pub fn new_zeroed_slice(len: usize) -> Rc<[mem::MaybeUninit<T>]> {
         unsafe {

library/alloc/src/sync.rs

@@ -516,8 +516,6 @@ impl<T> Arc<T> {
     /// # Examples
     ///
     /// ```
-    /// #![feature(new_zeroed_alloc)]
-    ///
     /// use std::sync::Arc;
     ///
     /// let zero = Arc::<u32>::new_zeroed();
@@ -529,7 +527,7 @@ impl<T> Arc<T> {
     /// [zeroed]: mem::MaybeUninit::zeroed
     #[cfg(not(no_global_oom_handling))]
     #[inline]
-    #[unstable(feature = "new_zeroed_alloc", issue = "129396")]
+    #[stable(feature = "new_zeroed_alloc", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     pub fn new_zeroed() -> Arc<mem::MaybeUninit<T>> {
         unsafe {
@@ -1197,8 +1195,6 @@ impl<T> Arc<[T]> {
     /// # Examples
     ///
     /// ```
-    /// #![feature(new_zeroed_alloc)]
-    ///
     /// use std::sync::Arc;
     ///
     /// let values = Arc::<[u32]>::new_zeroed_slice(3);
@@ -1210,7 +1206,7 @@ impl<T> Arc<[T]> {
     /// [zeroed]: mem::MaybeUninit::zeroed
     #[cfg(not(no_global_oom_handling))]
     #[inline]
-    #[unstable(feature = "new_zeroed_alloc", issue = "129396")]
+    #[stable(feature = "new_zeroed_alloc", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     pub fn new_zeroed_slice(len: usize) -> Arc<[mem::MaybeUninit<T>]> {
         unsafe {

library/std/src/lib.rs

@@ -376,7 +376,6 @@
 #![feature(allocator_api)]
 #![feature(get_mut_unchecked)]
 #![feature(map_try_insert)]
-#![feature(new_zeroed_alloc)]
 #![feature(slice_concat_trait)]
 #![feature(thin_box)]
 #![feature(try_reserve_kind)]