Rollup merge of rust-lang#97276 - JohnTitor:stabilize-const-intrinsic-copy, r=dtolnay

Stabilize `const_intrinsic_copy`

FCP has been completed: rust-lang#80697 (comment)
Closes rust-lang#80697

Author: JohnTitor

Diff for: library/alloc/tests/lib.rs

@@ -7,7 +7,6 @@
 #![feature(const_convert)]
 #![feature(const_cow_is_borrowed)]
 #![feature(const_heap)]
-#![feature(const_intrinsic_copy)]
 #![feature(const_mut_refs)]
 #![feature(const_nonnull_slice_from_raw_parts)]
 #![feature(const_ptr_write)]

Diff for: library/core/src/intrinsics.rs

@@ -2118,11 +2118,11 @@ pub(crate) fn is_nonoverlapping<T>(src: *const T, dst: *const T, count: usize) -
 /// [`Vec::append`]: ../../std/vec/struct.Vec.html#method.append
 #[doc(alias = "memcpy")]
 #[stable(feature = "rust1", since = "1.0.0")]
-#[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+#[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
 #[inline]
 pub const unsafe fn copy_nonoverlapping<T>(src: *const T, dst: *mut T, count: usize) {
     extern "rust-intrinsic" {
-        #[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+        #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
         pub fn copy_nonoverlapping<T>(src: *const T, dst: *mut T, count: usize);
     }
 
@@ -2200,11 +2200,11 @@ pub const unsafe fn copy_nonoverlapping<T>(src: *const T, dst: *mut T, count: us
 /// ```
 #[doc(alias = "memmove")]
 #[stable(feature = "rust1", since = "1.0.0")]
-#[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+#[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
 #[inline]
 pub const unsafe fn copy<T>(src: *const T, dst: *mut T, count: usize) {
     extern "rust-intrinsic" {
-        #[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+        #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
         fn copy<T>(src: *const T, dst: *mut T, count: usize);
     }
 

Diff for: library/core/src/lib.rs

@@ -114,7 +114,6 @@
 #![feature(const_convert)]
 #![feature(const_inherent_unchecked_arith)]
 #![feature(const_int_unchecked_arith)]
-#![feature(const_intrinsic_copy)]
 #![feature(const_intrinsic_forget)]
 #![feature(const_likely)]
 #![feature(const_maybe_uninit_uninit_array)]

Diff for: library/core/src/ptr/const_ptr.rs

@@ -1199,7 +1199,7 @@ impl<T: ?Sized> *const T {
     /// See [`ptr::copy`] for safety concerns and examples.
     ///
     /// [`ptr::copy`]: crate::ptr::copy()
-    #[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+    #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
     #[stable(feature = "pointer_methods", since = "1.26.0")]
     #[inline]
     pub const unsafe fn copy_to(self, dest: *mut T, count: usize)
@@ -1218,7 +1218,7 @@ impl<T: ?Sized> *const T {
     /// See [`ptr::copy_nonoverlapping`] for safety concerns and examples.
     ///
     /// [`ptr::copy_nonoverlapping`]: crate::ptr::copy_nonoverlapping()
-    #[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+    #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
     #[stable(feature = "pointer_methods", since = "1.26.0")]
     #[inline]
     pub const unsafe fn copy_to_nonoverlapping(self, dest: *mut T, count: usize)

Diff for: library/core/src/ptr/mod.rs

@@ -1136,7 +1136,7 @@ pub const unsafe fn read<T>(src: *const T) -> T {
     // We are calling the intrinsics directly to avoid function calls in the generated code
     // as `intrinsics::copy_nonoverlapping` is a wrapper function.
     extern "rust-intrinsic" {
-        #[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+        #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
         fn copy_nonoverlapping<T>(src: *const T, dst: *mut T, count: usize);
     }
 
@@ -1331,7 +1331,7 @@ pub const unsafe fn write<T>(dst: *mut T, src: T) {
     // We are calling the intrinsics directly to avoid function calls in the generated code
     // as `intrinsics::copy_nonoverlapping` is a wrapper function.
     extern "rust-intrinsic" {
-        #[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+        #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
         fn copy_nonoverlapping<T>(src: *const T, dst: *mut T, count: usize);
     }
 

Diff for: library/core/src/ptr/mut_ptr.rs

@@ -1311,7 +1311,7 @@ impl<T: ?Sized> *mut T {
     /// See [`ptr::copy`] for safety concerns and examples.
     ///
     /// [`ptr::copy`]: crate::ptr::copy()
-    #[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+    #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
     #[stable(feature = "pointer_methods", since = "1.26.0")]
     #[inline(always)]
     pub const unsafe fn copy_to(self, dest: *mut T, count: usize)
@@ -1330,7 +1330,7 @@ impl<T: ?Sized> *mut T {
     /// See [`ptr::copy_nonoverlapping`] for safety concerns and examples.
     ///
     /// [`ptr::copy_nonoverlapping`]: crate::ptr::copy_nonoverlapping()
-    #[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+    #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
     #[stable(feature = "pointer_methods", since = "1.26.0")]
     #[inline(always)]
     pub const unsafe fn copy_to_nonoverlapping(self, dest: *mut T, count: usize)
@@ -1349,7 +1349,7 @@ impl<T: ?Sized> *mut T {
     /// See [`ptr::copy`] for safety concerns and examples.
     ///
     /// [`ptr::copy`]: crate::ptr::copy()
-    #[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+    #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
     #[stable(feature = "pointer_methods", since = "1.26.0")]
     #[inline(always)]
     pub const unsafe fn copy_from(self, src: *const T, count: usize)
@@ -1368,7 +1368,7 @@ impl<T: ?Sized> *mut T {
     /// See [`ptr::copy_nonoverlapping`] for safety concerns and examples.
     ///
     /// [`ptr::copy_nonoverlapping`]: crate::ptr::copy_nonoverlapping()
-    #[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+    #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
     #[stable(feature = "pointer_methods", since = "1.26.0")]
     #[inline(always)]
     pub const unsafe fn copy_from_nonoverlapping(self, src: *const T, count: usize)

Diff for: src/test/ui/consts/copy-intrinsic.rs

@@ -2,14 +2,14 @@
 
 // ignore-tidy-linelength
 #![feature(intrinsics, staged_api)]
-#![feature(const_mut_refs, const_intrinsic_copy)]
+#![feature(const_mut_refs)]
 use std::mem;
 
 extern "rust-intrinsic" {
-    #[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+    #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
     fn copy_nonoverlapping<T>(src: *const T, dst: *mut T, count: usize);
 
-    #[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+    #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
     fn copy<T>(src: *const T, dst: *mut T, count: usize);
 }
 

Diff for: src/test/ui/consts/intrinsic_without_const_stab.rs

@@ -1,8 +1,8 @@
-#![feature(intrinsics, staged_api, const_intrinsic_copy)]
+#![feature(intrinsics, staged_api)]
 #![stable(feature = "core", since = "1.6.0")]
 
 #[stable(feature = "rust1", since = "1.0.0")]
-#[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+#[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
 #[inline]
 pub const unsafe fn copy<T>(src: *const T, dst: *mut T, count: usize) {
     // Const stability attributes are not inherited from parent items.

Diff for: src/test/ui/consts/intrinsic_without_const_stab_fail.rs

@@ -1,12 +1,12 @@
-#![feature(intrinsics, staged_api, const_intrinsic_copy)]
+#![feature(intrinsics, staged_api)]
 #![stable(feature = "core", since = "1.6.0")]
 
 extern "rust-intrinsic" {
     fn copy<T>(src: *const T, dst: *mut T, count: usize);
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]
-#[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
+#[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.63.0")]
 #[inline]
 pub const unsafe fn stuff<T>(src: *const T, dst: *mut T, count: usize) {
     unsafe { copy(src, dst, count) } //~ ERROR cannot call non-const fn