Revert "Revert stabilizing integer::BITS."

9 files changed, 2 insertions, 11 deletions

diff --git a/compiler/rustc_data_structures/src/lib.rs b/compiler/rustc_data_structures/src/lib.rs
index fcb2bca7b4c..123618a440d 100644
--- a/compiler/rustc_data_structures/src/lib.rs
+++ b/compiler/rustc_data_structures/src/lib.rs
@@ -13,7 +13,6 @@
 #![feature(unboxed_closures)]
 #![feature(generator_trait)]
 #![feature(fn_traits)]
-#![feature(int_bits_const)]
 #![feature(min_specialization)]
 #![feature(auto_traits)]
 #![feature(nll)]
diff --git a/compiler/rustc_serialize/src/lib.rs b/compiler/rustc_serialize/src/lib.rs
index 40b9522949d..cf5a9118275 100644
--- a/compiler/rustc_serialize/src/lib.rs
+++ b/compiler/rustc_serialize/src/lib.rs
@@ -16,7 +16,6 @@ Core encoding and decoding interfaces.
 #![feature(min_specialization)]
 #![feature(vec_spare_capacity)]
 #![feature(core_intrinsics)]
-#![feature(int_bits_const)]
 #![feature(maybe_uninit_array_assume_init)]
 #![feature(maybe_uninit_uninit_array)]
 #![feature(maybe_uninit_slice)]
diff --git a/compiler/rustc_serialize/tests/leb128.rs b/compiler/rustc_serialize/tests/leb128.rs
index a2bcf2c251d..3e2aab5125a 100644
--- a/compiler/rustc_serialize/tests/leb128.rs
+++ b/compiler/rustc_serialize/tests/leb128.rs
@@ -1,4 +1,3 @@
-#![feature(int_bits_const)]
 #![feature(maybe_uninit_slice)]
 #![feature(maybe_uninit_uninit_array)]
 
diff --git a/library/alloc/src/lib.rs b/library/alloc/src/lib.rs
index f34d25e01fc..40f2de8f70d 100644
--- a/library/alloc/src/lib.rs
+++ b/library/alloc/src/lib.rs
@@ -103,7 +103,6 @@
 #![feature(fn_traits)]
 #![feature(fundamental)]
 #![feature(inplace_iteration)]
-#![feature(int_bits_const)]
 // Technically, this is a bug in rustdoc: rustdoc sees the documentation on `#[lang = slice_alloc]`
 // blocks is for `&[T]`, which also has documentation using this feature in `core`, and gets mad
 // that the feature-gate isn't enabled. Ideally, it wouldn't check for the feature gate for docs
diff --git a/library/alloc/tests/lib.rs b/library/alloc/tests/lib.rs
index 06874bff44e..c75a6c1f619 100644
--- a/library/alloc/tests/lib.rs
+++ b/library/alloc/tests/lib.rs
@@ -16,7 +16,6 @@
 #![feature(binary_heap_retain)]
 #![feature(inplace_iteration)]
 #![feature(iter_map_while)]
-#![feature(int_bits_const)]
 #![feature(vecdeque_binary_search)]
 #![feature(slice_group_by)]
 #![feature(slice_partition_dedup)]
diff --git a/library/core/src/num/int_macros.rs b/library/core/src/num/int_macros.rs
index 79737b48d79..9e7af225395 100644
--- a/library/core/src/num/int_macros.rs
+++ b/library/core/src/num/int_macros.rs
@@ -32,10 +32,9 @@ macro_rules! int_impl {
         /// # Examples
         ///
         /// ```
-        /// #![feature(int_bits_const)]
         #[doc = concat!("assert_eq!(", stringify!($SelfT), "::BITS, ", stringify!($BITS), ");")]
         /// ```
-        #[unstable(feature = "int_bits_const", issue = "76904")]
+        #[stable(feature = "int_bits_const", since = "1.51.0")]
         pub const BITS: u32 = $BITS;
 
         /// Converts a string slice in a given base to an integer.
diff --git a/library/core/src/num/uint_macros.rs b/library/core/src/num/uint_macros.rs
index 7393e7f923e..4f4ebed1eda 100644
--- a/library/core/src/num/uint_macros.rs
+++ b/library/core/src/num/uint_macros.rs
@@ -32,10 +32,9 @@ macro_rules! uint_impl {
         /// # Examples
         ///
         /// ```
-        /// #![feature(int_bits_const)]
         #[doc = concat!("assert_eq!(", stringify!($SelfT), "::BITS, ", stringify!($BITS), ");")]
         /// ```
-        #[unstable(feature = "int_bits_const", issue = "76904")]
+        #[stable(feature = "int_bits_const", since = "1.51.0")]
         pub const BITS: u32 = $BITS;
 
         /// Converts a string slice in a given base to an integer.
diff --git a/library/core/tests/lib.rs b/library/core/tests/lib.rs
index b7fcc740363..8f797aeed0d 100644
--- a/library/core/tests/lib.rs
+++ b/library/core/tests/lib.rs
@@ -73,7 +73,6 @@
 #![cfg_attr(not(bootstrap), feature(ptr_metadata))]
 #![feature(once_cell)]
 #![feature(unsized_tuple_coercion)]
-#![feature(int_bits_const)]
 #![feature(nonzero_leading_trailing_zeros)]
 #![feature(const_option)]
 #![feature(integer_atomics)]
diff --git a/library/panic_unwind/src/lib.rs b/library/panic_unwind/src/lib.rs
index 9ce9c477ec0..99a0c67fc11 100644
--- a/library/panic_unwind/src/lib.rs
+++ b/library/panic_unwind/src/lib.rs
@@ -18,7 +18,6 @@
     issue_tracker_base_url = "https://github.com/rust-lang/rust/issues/"
 )]
 #![feature(core_intrinsics)]
-#![feature(int_bits_const)]
 #![feature(lang_items)]
 #![feature(nll)]
 #![feature(panic_unwind)]