Auto merge of #84956 - RalfJung:rollup-m70mx2n, r=RalfJung

Rollup of 11 pull requests

Successful merges:

 - #83553 (Update `ptr` docs with regards to `ptr::addr_of!`)
 - #84183 (Update RELEASES.md for 1.52.0)
 - #84709 (Add doc alias for `chdir` to `std::env::set_current_dir`)
 - #84803 (Reduce duplication in `impl_dep_tracking_hash` macros)
 - #84808 (Account for unsatisfied bounds in E0599)
 - #84843 (use else if in std library )
 - #84865 (rustbuild: Pass a `threads` flag that works to windows-gnu lld)
 - #84878 (Clarify documentation for `[T]::contains`)
 - #84882 (platform-support: Center the contents of the `std` and `host` columns)
 - #84903 (Remove `rustc_middle::mir::interpret::CheckInAllocMsg::NullPointerTest`)
 - #84913 (Do not ICE on invalid const param)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

2 files changed, 22 insertions, 1 deletions

diff --git a/library/std/src/env.rs b/library/std/src/env.rs
index 821e7d4cfe7..11d052dae9e 100644
--- a/library/std/src/env.rs
+++ b/library/std/src/env.rs
@@ -61,6 +61,7 @@ pub fn current_dir() -> io::Result<PathBuf> {
 /// assert!(env::set_current_dir(&root).is_ok());
 /// println!("Successfully changed working directory to {}!", root.display());
 /// ```
+#[doc(alias = "chdir")]
 #[stable(feature = "env", since = "1.0.0")]
 pub fn set_current_dir<P: AsRef<Path>>(path: P) -> io::Result<()> {
     os_imp::chdir(path.as_ref())
diff --git a/library/std/src/primitive_docs.rs b/library/std/src/primitive_docs.rs
index cd6b0b2d7ee..96ab32104ea 100644
--- a/library/std/src/primitive_docs.rs
+++ b/library/std/src/primitive_docs.rs
@@ -445,7 +445,27 @@ mod prim_unit {}
 /// Note that here the call to [`drop`] is for clarity - it indicates
 /// that we are done with the given value and it should be destroyed.
 ///
-/// ## 3. Get it from C.
+/// ## 3. Create it using `ptr::addr_of!`
+///
+/// Instead of coercing a reference to a raw pointer, you can use the macros
+/// [`ptr::addr_of!`] (for `*const T`) and [`ptr::addr_of_mut!`] (for `*mut T`).
+/// These macros allow you to create raw pointers to fields to which you cannot
+/// create a reference (without causing undefined behaviour), such as an
+/// unaligned field. This might be necessary if packed structs or uninitialized
+/// memory is involved.
+///
+/// ```
+/// #[derive(Debug, Default, Copy, Clone)]
+/// #[repr(C, packed)]
+/// struct S {
+///     aligned: u8,
+///     unaligned: u32,
+/// }
+/// let s = S::default();
+/// let p = std::ptr::addr_of!(s.unaligned); // not allowed with coercion
+/// ```
+///
+/// ## 4. Get it from C.
 ///
 /// ```
 /// # #![feature(rustc_private)]