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stabilize ptr.is_aligned, move ptr.is_aligned_to to a new feature gate

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This is an alternative to #121920
This commit is contained in:
Aria Beingessner 2024-03-03 14:44:15 -05:00
parent faae5f1ffe
commit ea92faec49
13 changed files with 30 additions and 51 deletions
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4
compiler/rustc_codegen_gcc/patches/libgccjit12/0001-core-Disable-portable-simd-test.patch
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@ -14,7 +14,7 @@ index d0a119c..76fdece 100644
@@ -89,7 +89,6 @@
#![feature(never_type)]
#![feature(unwrap_infallible)]
#![feature(pointer_is_aligned)]
#![feature(pointer_is_aligned_to)]
-#![feature(portable_simd)]
#![feature(ptr_metadata)]
#![feature(lazy_cell)]
@ -27,6 +27,6 @@ index d0a119c..76fdece 100644
mod slice;
mod str;
mod str_lossy;
--
--
2.42.1

1
library/alloc/src/lib.rs
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@ -198,7 +198,6 @@
#![feature(multiple_supertrait_upcastable)]
#![feature(negative_impls)]
#![feature(never_type)]
#![feature(pointer_is_aligned)]
#![feature(rustc_allow_const_fn_unstable)]
#![feature(rustc_attrs)]
#![feature(slice_internals)]

2
library/alloc/tests/lib.rs
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@ -37,7 +37,7 @@
#![feature(const_trait_impl)]
#![feature(const_str_from_utf8)]
#![feature(panic_update_hook)]
#![feature(pointer_is_aligned)]
#![feature(pointer_is_aligned_to)]
#![feature(slice_flatten)]
#![feature(thin_box)]
#![feature(strict_provenance)]

17
library/core/src/ptr/const_ptr.rs
View File

@ -1401,8 +1401,6 @@ impl<T: ?Sized> *const T {
/// # Examples
///
/// ```
/// #![feature(pointer_is_aligned)]
///
/// // On some platforms, the alignment of i32 is less than 4.
/// #[repr(align(4))]
/// struct AlignedI32(i32);
@ -1425,7 +1423,6 @@ impl<T: ?Sized> *const T {
/// underlying allocation.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(const_pointer_is_aligned)]
///
/// // On some platforms, the alignment of primitives is less than their size.
@ -1451,7 +1448,6 @@ impl<T: ?Sized> *const T {
/// pointer is aligned, even if the compiletime pointer wasn't aligned.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(const_pointer_is_aligned)]
///
/// // On some platforms, the alignment of primitives is less than their size.
@ -1477,7 +1473,6 @@ impl<T: ?Sized> *const T {
/// runtime and compiletime.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(const_pointer_is_aligned)]
///
/// // On some platforms, the alignment of primitives is less than their size.
@ -1501,7 +1496,7 @@ impl<T: ?Sized> *const T {
/// [tracking issue]: https://github.com/rust-lang/rust/issues/104203
#[must_use]
#[inline]
#[unstable(feature = "pointer_is_aligned", issue = "96284")]
#[stable(feature = "pointer_is_aligned", since = "CURRENT_RUSTC_VERSION")]
#[rustc_const_unstable(feature = "const_pointer_is_aligned", issue = "104203")]
pub const fn is_aligned(self) -> bool
where
@ -1522,7 +1517,7 @@ impl<T: ?Sized> *const T {
/// # Examples
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(pointer_is_aligned_to)]
///
/// // On some platforms, the alignment of i32 is less than 4.
/// #[repr(align(4))]
@ -1551,7 +1546,7 @@ impl<T: ?Sized> *const T {
/// cannot be stricter aligned than the reference's underlying allocation.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(pointer_is_aligned_to)]
/// #![feature(const_pointer_is_aligned)]
///
/// // On some platforms, the alignment of i32 is less than 4.
@ -1576,7 +1571,7 @@ impl<T: ?Sized> *const T {
/// pointer is aligned, even if the compiletime pointer wasn't aligned.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(pointer_is_aligned_to)]
/// #![feature(const_pointer_is_aligned)]
///
/// // On some platforms, the alignment of i32 is less than 4.
@ -1600,7 +1595,7 @@ impl<T: ?Sized> *const T {
/// runtime and compiletime.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(pointer_is_aligned_to)]
/// #![feature(const_pointer_is_aligned)]
///
/// const _: () = {
@ -1616,7 +1611,7 @@ impl<T: ?Sized> *const T {
/// [tracking issue]: https://github.com/rust-lang/rust/issues/104203
#[must_use]
#[inline]
#[unstable(feature = "pointer_is_aligned", issue = "96284")]
#[unstable(feature = "pointer_is_aligned_to", issue = "96284")]
#[rustc_const_unstable(feature = "const_pointer_is_aligned", issue = "104203")]
pub const fn is_aligned_to(self, align: usize) -> bool {
if !align.is_power_of_two() {

17
library/core/src/ptr/mut_ptr.rs
View File

@ -1660,8 +1660,6 @@ impl<T: ?Sized> *mut T {
/// # Examples
///
/// ```
/// #![feature(pointer_is_aligned)]
///
/// // On some platforms, the alignment of i32 is less than 4.
/// #[repr(align(4))]
/// struct AlignedI32(i32);
@ -1684,7 +1682,6 @@ impl<T: ?Sized> *mut T {
/// underlying allocation.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(const_pointer_is_aligned)]
/// #![feature(const_mut_refs)]
///
@ -1711,7 +1708,6 @@ impl<T: ?Sized> *mut T {
/// pointer is aligned, even if the compiletime pointer wasn't aligned.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(const_pointer_is_aligned)]
///
/// // On some platforms, the alignment of primitives is less than their size.
@ -1738,7 +1734,6 @@ impl<T: ?Sized> *mut T {
/// runtime and compiletime.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(const_pointer_is_aligned)]
///
/// // On some platforms, the alignment of primitives is less than their size.
@ -1762,7 +1757,7 @@ impl<T: ?Sized> *mut T {
/// [tracking issue]: https://github.com/rust-lang/rust/issues/104203
#[must_use]
#[inline]
#[unstable(feature = "pointer_is_aligned", issue = "96284")]
#[stable(feature = "pointer_is_aligned", since = "CURRENT_RUSTC_VERSION")]
#[rustc_const_unstable(feature = "const_pointer_is_aligned", issue = "104203")]
pub const fn is_aligned(self) -> bool
where
@ -1783,7 +1778,7 @@ impl<T: ?Sized> *mut T {
/// # Examples
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(pointer_is_aligned_to)]
///
/// // On some platforms, the alignment of i32 is less than 4.
/// #[repr(align(4))]
@ -1812,7 +1807,7 @@ impl<T: ?Sized> *mut T {
/// cannot be stricter aligned than the reference's underlying allocation.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(pointer_is_aligned_to)]
/// #![feature(const_pointer_is_aligned)]
/// #![feature(const_mut_refs)]
///
@ -1838,7 +1833,7 @@ impl<T: ?Sized> *mut T {
/// pointer is aligned, even if the compiletime pointer wasn't aligned.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(pointer_is_aligned_to)]
/// #![feature(const_pointer_is_aligned)]
///
/// // On some platforms, the alignment of i32 is less than 4.
@ -1863,7 +1858,7 @@ impl<T: ?Sized> *mut T {
/// runtime and compiletime.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(pointer_is_aligned_to)]
/// #![feature(const_pointer_is_aligned)]
///
/// const _: () = {
@ -1879,7 +1874,7 @@ impl<T: ?Sized> *mut T {
/// [tracking issue]: https://github.com/rust-lang/rust/issues/104203
#[must_use]
#[inline]
#[unstable(feature = "pointer_is_aligned", issue = "96284")]
#[unstable(feature = "pointer_is_aligned_to", issue = "96284")]
#[rustc_const_unstable(feature = "const_pointer_is_aligned", issue = "104203")]
pub const fn is_aligned_to(self, align: usize) -> bool {
if !align.is_power_of_two() {

16
library/core/src/ptr/non_null.rs
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@ -1288,7 +1288,6 @@ impl<T: ?Sized> NonNull<T> {
/// # Examples
///
/// ```
/// #![feature(pointer_is_aligned)]
/// use std::ptr::NonNull;
///
/// // On some platforms, the alignment of i32 is less than 4.
@ -1313,7 +1312,6 @@ impl<T: ?Sized> NonNull<T> {
/// underlying allocation.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(const_pointer_is_aligned)]
/// #![feature(non_null_convenience)]
/// #![feature(const_option)]
@ -1343,7 +1341,6 @@ impl<T: ?Sized> NonNull<T> {
/// pointer is aligned, even if the compiletime pointer wasn't aligned.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(const_pointer_is_aligned)]
///
/// // On some platforms, the alignment of primitives is less than their size.
@ -1369,7 +1366,6 @@ impl<T: ?Sized> NonNull<T> {
/// runtime and compiletime.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(const_pointer_is_aligned)]
/// #![feature(const_option)]
/// #![feature(const_nonnull_new)]
@ -1394,7 +1390,7 @@ impl<T: ?Sized> NonNull<T> {
/// ```
///
/// [tracking issue]: https://github.com/rust-lang/rust/issues/104203
#[unstable(feature = "pointer_is_aligned", issue = "96284")]
#[stable(feature = "pointer_is_aligned", since = "CURRENT_RUSTC_VERSION")]
#[rustc_const_unstable(feature = "const_pointer_is_aligned", issue = "104203")]
#[must_use]
#[inline]
@ -1417,7 +1413,7 @@ impl<T: ?Sized> NonNull<T> {
/// # Examples
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(pointer_is_aligned_to)]
///
/// // On some platforms, the alignment of i32 is less than 4.
/// #[repr(align(4))]
@ -1446,7 +1442,7 @@ impl<T: ?Sized> NonNull<T> {
/// cannot be stricter aligned than the reference's underlying allocation.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(pointer_is_aligned_to)]
/// #![feature(const_pointer_is_aligned)]
///
/// // On some platforms, the alignment of i32 is less than 4.
@ -1471,7 +1467,7 @@ impl<T: ?Sized> NonNull<T> {
/// pointer is aligned, even if the compiletime pointer wasn't aligned.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(pointer_is_aligned_to)]
/// #![feature(const_pointer_is_aligned)]
///
/// // On some platforms, the alignment of i32 is less than 4.
@ -1495,7 +1491,7 @@ impl<T: ?Sized> NonNull<T> {
/// runtime and compiletime.
///
/// ```
/// #![feature(pointer_is_aligned)]
/// #![feature(pointer_is_aligned_to)]
/// #![feature(const_pointer_is_aligned)]
///
/// const _: () = {
@ -1509,7 +1505,7 @@ impl<T: ?Sized> NonNull<T> {
/// ```
///
/// [tracking issue]: https://github.com/rust-lang/rust/issues/104203
#[unstable(feature = "pointer_is_aligned", issue = "96284")]
#[unstable(feature = "pointer_is_aligned_to", issue = "96284")]
#[rustc_const_unstable(feature = "const_pointer_is_aligned", issue = "104203")]
#[must_use]
#[inline]

12
library/core/src/sync/atomic.rs
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@ -418,14 +418,12 @@ impl AtomicBool {
/// # Examples
///
/// ```
/// #![feature(pointer_is_aligned)]
/// use std::sync::atomic::{self, AtomicBool};
/// use std::mem::align_of;
///
/// // Get a pointer to an allocated value
/// let ptr: *mut bool = Box::into_raw(Box::new(false));
///
/// assert!(ptr.is_aligned_to(align_of::<AtomicBool>()));
/// assert!(ptr.cast::<AtomicBool>().is_aligned());
///
/// {
/// // Create an atomic view of the allocated value
@ -1216,14 +1214,12 @@ impl<T> AtomicPtr<T> {
/// # Examples
///
/// ```
/// #![feature(pointer_is_aligned)]
/// use std::sync::atomic::{self, AtomicPtr};
/// use std::mem::align_of;
///
/// // Get a pointer to an allocated value
/// let ptr: *mut *mut u8 = Box::into_raw(Box::new(std::ptr::null_mut()));
///
/// assert!(ptr.is_aligned_to(align_of::<AtomicPtr<u8>>()));
/// assert!(ptr.cast::<AtomicPtr<u8>>().is_aligned());
///
/// {
/// // Create an atomic view of the allocated value
@ -2199,14 +2195,12 @@ macro_rules! atomic_int {
/// # Examples
///
/// ```
/// #![feature(pointer_is_aligned)]
#[doc = concat!($extra_feature, "use std::sync::atomic::{self, ", stringify!($atomic_type), "};")]
/// use std::mem::align_of;
///
/// // Get a pointer to an allocated value
#[doc = concat!("let ptr: *mut ", stringify!($int_type), " = Box::into_raw(Box::new(0));")]
///
#[doc = concat!("assert!(ptr.is_aligned_to(align_of::<", stringify!($atomic_type), ">()));")]
#[doc = concat!("assert!(ptr.cast::<", stringify!($atomic_type), ">().is_aligned());")]
///
/// {
/// // Create an atomic view of the allocated value

2
library/core/tests/lib.rs
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@ -95,7 +95,7 @@
#![feature(const_waker)]
#![feature(never_type)]
#![feature(unwrap_infallible)]
#![feature(pointer_is_aligned)]
#![feature(pointer_is_aligned_to)]
#![feature(portable_simd)]
#![feature(ptr_metadata)]
#![feature(lazy_cell)]

2
library/std/src/lib.rs
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@ -341,7 +341,7 @@
#![feature(panic_can_unwind)]
#![feature(panic_info_message)]
#![feature(panic_internals)]
#![feature(pointer_is_aligned)]
#![feature(pointer_is_aligned_to)]
#![feature(portable_simd)]
#![feature(prelude_2024)]
#![feature(ptr_as_uninit)]

2
src/tools/miri/tests/pass-dep/shims/posix_memalign.rs
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@ -1,6 +1,6 @@
//@ignore-target-windows: No libc on Windows
#![feature(pointer_is_aligned)]
#![feature(pointer_is_aligned_to)]
#![feature(strict_provenance)]
use core::ptr;

2
tests/assembly/is_aligned.rs
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@ -7,7 +7,7 @@
#![crate_type="rlib"]
#![feature(core_intrinsics)]
#![feature(pointer_is_aligned)]
#![feature(pointer_is_aligned_to)]
// CHECK-LABEL: is_aligned_to_unchecked
// CHECK: decq

2
tests/ui/mir/alignment/packed.rs
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@ -1,7 +1,7 @@
//@ run-pass
//@ compile-flags: -C debug-assertions
#![feature(strict_provenance, pointer_is_aligned)]
#![feature(strict_provenance)]
#[repr(packed)]
struct Misaligner {

2
tests/ui/structs-enums/type-sizes.rs
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@ -4,7 +4,7 @@
#![allow(dead_code)]
#![feature(generic_nonzero)]
#![feature(never_type)]
#![feature(pointer_is_aligned)]
#![feature(pointer_is_aligned_to)]
#![feature(strict_provenance)]
use std::mem::size_of;