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Stabilize movbe target feature #107711

Merged
merged 1 commit into from Mar 11, 2023
Merged

Stabilize movbe target feature #107711

merged 1 commit into from Mar 11, 2023

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calebzulawski
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Almost all "old" x86 target features are stable. As far as I can tell, these are the last two unstable features in the x86-64-v2 or x86-64-v3 microarchitecture levels, so I'm not sure if it was an oversight or if they're still unstable for a reason (see #106323 for f16c).

Note that this only stabilizes the target features, and not the intrinsics.

cc @Amanieu

r? @rust-lang/lang

@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Feb 6, 2023
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rustbot commented Feb 6, 2023

Hey! It looks like you've submitted a new PR for the library teams!

If this PR contains changes to any rust-lang/rust public library APIs then please comment with @rustbot label +T-libs-api -T-libs to tag it appropriately. If this PR contains changes to any unstable APIs please edit the PR description to add a link to the relevant API Change Proposal or create one if you haven't already. If you're unsure where your change falls no worries, just leave it as is and the reviewer will take a look and make a decision to forward on if necessary.

Examples of T-libs-api changes:

  • Stabilizing library features
  • Introducing insta-stable changes such as new implementations of existing stable traits on existing stable types
  • Introducing new or changing existing unstable library APIs (excluding permanently unstable features / features without a tracking issue)
  • Changing public documentation in ways that create new stability guarantees
  • Changing observable runtime behavior of library APIs

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bors commented Feb 28, 2023

☔ The latest upstream changes (presumably #106774) made this pull request unmergeable. Please resolve the merge conflicts.

@pnkfelix
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pnkfelix commented Mar 2, 2023

r+

@calebzulawski calebzulawski changed the title Stabilize movbe and cmpxchg16b target features Stabilize movbe target feature Mar 2, 2023
@calebzulawski
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I guess this only stabilizes movbe now 🤷

@ehuss
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ehuss commented Mar 2, 2023

Can you also post a PR to the reference similar to rust-lang/reference#1331?

@calebzulawski
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Done!

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pnkfelix commented Mar 9, 2023

@bors r+

@pnkfelix pnkfelix closed this Mar 9, 2023
@pnkfelix pnkfelix reopened this Mar 9, 2023
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bors commented Mar 9, 2023

📌 Commit d3cbedd has been approved by pnkfelix

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Mar 9, 2023
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pnkfelix commented Mar 9, 2023

(closed and reopened to try to get bors to see my signal above)

@calebzulawski
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Thanks!

matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Mar 10, 2023
Stabilize movbe target feature

Almost all "old" x86 target features are stable.  As far as I can tell, these are the last two unstable features in the `x86-64-v2` or `x86-64-v3` microarchitecture levels, so I'm not sure if it was an oversight or if they're still unstable for a reason (see rust-lang#106323 for `f16c`).

Note that this only stabilizes the target features, and not the intrinsics.

cc `@Amanieu`

r? `@rust-lang/lang`
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Mar 10, 2023
Stabilize movbe target feature

Almost all "old" x86 target features are stable.  As far as I can tell, these are the last two unstable features in the `x86-64-v2` or `x86-64-v3` microarchitecture levels, so I'm not sure if it was an oversight or if they're still unstable for a reason (see rust-lang#106323 for `f16c`).

Note that this only stabilizes the target features, and not the intrinsics.

cc ``@Amanieu``

r? ``@rust-lang/lang``
bors added a commit to rust-lang-ci/rust that referenced this pull request Mar 11, 2023
…iaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#105798 (Relax ordering rules for `asm!` operands)
 - rust-lang#105962 (Stabilize path_as_mut_os_str)
 - rust-lang#106085 (use problem matchers for tidy CI)
 - rust-lang#107711 (Stabilize movbe target feature)
 - rust-lang#108017 (Add `--no-undefined-version` link flag and fix associated breakage)
 - rust-lang#108891 (Remove an extraneous include)
 - rust-lang#108902 (no more do while :<)
 - rust-lang#108912 (Document tool lints)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 93316d7 into rust-lang:master Mar 11, 2023
@rustbot rustbot added this to the 1.70.0 milestone Mar 11, 2023
bjorn3 pushed a commit to bjorn3/rust that referenced this pull request Mar 15, 2023
…iaskrgr

Rollup of 8 pull requests

Successful merges:

 - rust-lang#105798 (Relax ordering rules for `asm!` operands)
 - rust-lang#105962 (Stabilize path_as_mut_os_str)
 - rust-lang#106085 (use problem matchers for tidy CI)
 - rust-lang#107711 (Stabilize movbe target feature)
 - rust-lang#108017 (Add `--no-undefined-version` link flag and fix associated breakage)
 - rust-lang#108891 (Remove an extraneous include)
 - rust-lang#108902 (no more do while :<)
 - rust-lang#108912 (Document tool lints)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
wip-sync pushed a commit to NetBSD/pkgsrc-wip that referenced this pull request Jun 3, 2023
Pkgsrc changes:
 * Adjust patches and cargo checksums to new versions.
 * Adjust to not cross-build to 8.0, due to LLVM using c++17,
   so adjust USE_LANGUAGES.

Upstream changes:

Version 1.70.0 (2023-06-01)
==========================

Language
--------
- [Relax ordering rules for `asm!` operands]
  (rust-lang/rust#105798)
- [Properly allow macro expanded `format_args` invocations to uses
  captures] (rust-lang/rust#106505)
- [Lint ambiguous glob re-exports]
  (rust-lang/rust#107880)
- [Perform const and unsafe checking for expressions in `let _ =
  expr` position.]
  (rust-lang/rust#102256)

Compiler
--------
- [Extend -Cdebuginfo with new options and named aliases]
  (rust-lang/rust#109808)
  This provides a smaller version of debuginfo for cases that only
  need line number information (`-Cdebuginfo=line-tables-only`),
  which may eventually become the default for `-Cdebuginfo=1`.
- [Make `unused_allocation` lint against `Box::new` too]
  (rust-lang/rust#104363)
- [Detect uninhabited types early in const eval]
  (rust-lang/rust#109435)
- [Switch to LLD as default linker for {arm,thumb}v4t-none-eabi]
  (rust-lang/rust#109721)
- [Add tier 3 target `loongarch64-unknown-linux-gnu`]
  (rust-lang/rust#96971)
- [Add tier 3 target for `i586-pc-nto-qnx700` (QNX Neutrino RTOS,
  version 7.0)] (rust-lang/rust#109173),
- [Insert alignment checks for pointer dereferences as debug assertions]
  (rust-lang/rust#98112)
  This catches undefined behavior at runtime, and may cause existing
  code to fail.

Refer to Rust's [platform support page][platform-support-doc]
for more information on Rust's tiered platform support.

Libraries
---------
- [Document NonZeroXxx layout guarantees]
  (rust-lang/rust#94786)
- [Windows: make `Command` prefer non-verbatim paths]
  (rust-lang/rust#96391)
- [Implement Default for some alloc/core iterators]
  (rust-lang/rust#99929)
- [Fix handling of trailing bare CR in str::lines]
  (rust-lang/rust#100311)
- [allow negative numeric literals in `concat!`]
  (rust-lang/rust#106844)
- [Add documentation about the memory layout of `Cell`]
  (rust-lang/rust#106921)
- [Use `partial_cmp` to implement tuple `lt`/`le`/`ge`/`gt`]
  (rust-lang/rust#108157)
- [Stabilize `atomic_as_ptr`]
  (rust-lang/rust#108419)
- [Stabilize `nonnull_slice_from_raw_parts`]
  (rust-lang/rust#97506)
- [Partial stabilization of `once_cell`]
  (rust-lang/rust#105587)
- [Stabilize `nonzero_min_max`]
  (rust-lang/rust#106633)
- [Flatten/inline format_args!() and (string and int) literal
  arguments into format_args!()]
  (rust-lang/rust#106824)
- [Stabilize movbe target feature]
  (rust-lang/rust#107711)
- [don't splice from files into pipes in io::copy]
  (rust-lang/rust#108283)
- [Add a builtin unstable `FnPtr` trait that is implemented for
  all function pointers]
  (rust-lang/rust#108080)
  This extends `Debug`, `Pointer`, `Hash`, `PartialEq`, `Eq`,
  `PartialOrd`, and `Ord` implementations for function pointers
  with all ABIs.

Stabilized APIs
---------------

- [`NonZero*::MIN/MAX`]
  (https://doc.rust-lang.org/stable/std/num/struct.NonZeroI8.html#associatedconstant.MIN)
- [`BinaryHeap::retain`]
  (https://doc.rust-lang.org/stable/std/collections/struct.BinaryHeap.html#method.retain)
- [`Default for std::collections::binary_heap::IntoIter`]
  (https://doc.rust-lang.org/stable/std/collections/binary_heap/struct.IntoIter.html)
- [`Default for std::collections::btree_map::{IntoIter, Iter, IterMut}`]
  (https://doc.rust-lang.org/stable/std/collections/btree_map/struct.IntoIter.html)
- [`Default for std::collections::btree_map::{IntoKeys, Keys}`]
  (https://doc.rust-lang.org/stable/std/collections/btree_map/struct.IntoKeys.html)
- [`Default for std::collections::btree_map::{IntoValues, Values}`]
  (https://doc.rust-lang.org/stable/std/collections/btree_map/struct.IntoKeys.html)
- [`Default for std::collections::btree_map::Range`]
  (https://doc.rust-lang.org/stable/std/collections/btree_map/struct.Range.html)
- [`Default for std::collections::btree_set::{IntoIter, Iter}`]
  (https://doc.rust-lang.org/stable/std/collections/btree_set/struct.IntoIter.html)
- [`Default for std::collections::btree_set::Range`]
  (https://doc.rust-lang.org/stable/std/collections/btree_set/struct.Range.html)
- [`Default for std::collections::linked_list::{IntoIter, Iter, IterMut}`]
  (https://doc.rust-lang.org/stable/alloc/collections/linked_list/struct.IntoIter.html)
- [`Default for std::vec::IntoIter`]
  (https://doc.rust-lang.org/stable/alloc/vec/struct.IntoIter.html#impl-Default-for-IntoIter%3CT,+A%3E)
- [`Default for std::iter::Chain`]
  (https://doc.rust-lang.org/stable/std/iter/struct.Chain.html)
- [`Default for std::iter::Cloned`]
  (https://doc.rust-lang.org/stable/std/iter/struct.Cloned.html)
- [`Default for std::iter::Copied`]
  (https://doc.rust-lang.org/stable/std/iter/struct.Copied.html)
- [`Default for std::iter::Enumerate`]
  (https://doc.rust-lang.org/stable/std/iter/struct.Enumerate.html)
- [`Default for std::iter::Flatten`]
  (https://doc.rust-lang.org/stable/std/iter/struct.Flatten.html)
- [`Default for std::iter::Fuse`]
  (https://doc.rust-lang.org/stable/std/iter/struct.Fuse.html)
- [`Default for std::iter::Rev`]
  (https://doc.rust-lang.org/stable/std/iter/struct.Rev.html)
- [`Default for std::slice::Iter`]
  (https://doc.rust-lang.org/stable/std/slice/struct.Iter.html)
- [`Default for std::slice::IterMut`]
  (https://doc.rust-lang.org/stable/std/slice/struct.IterMut.html)
- [`Rc::into_inner`]
  (https://doc.rust-lang.org/stable/alloc/rc/struct.Rc.html#method.into_inner)
- [`Arc::into_inner`]
  (https://doc.rust-lang.org/stable/alloc/sync/struct.Arc.html#method.into_inner)
- [`std::cell::OnceCell`]
  (https://doc.rust-lang.org/stable/std/cell/struct.OnceCell.html)
- [`Option::is_some_and`]
  (https://doc.rust-lang.org/stable/std/option/enum.Option.html#method.is_some_and)
- [`NonNull::slice_from_raw_parts`]
  (https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.slice_from_raw_parts)
- [`Result::is_ok_and`]
  (https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.is_ok_and)
- [`Result::is_err_and`]
  (https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.is_err_and)
- [`std::sync::atomic::Atomic*::as_ptr`]
  (https://doc.rust-lang.org/stable/std/sync/atomic/struct.AtomicU8.html#method.as_ptr)
- [`std::io::IsTerminal`]
  (https://doc.rust-lang.org/stable/std/io/trait.IsTerminal.html)
- [`std::os::linux::net::SocketAddrExt`]
  (https://doc.rust-lang.org/stable/std/os/linux/net/trait.SocketAddrExt.html)
- [`std::os::unix::net::UnixDatagram::bind_addr`]
  (https://doc.rust-lang.org/stable/std/os/unix/net/struct.UnixDatagram.html#method.bind_addr)
- [`std::os::unix::net::UnixDatagram::connect_addr`]
  (https://doc.rust-lang.org/stable/std/os/unix/net/struct.UnixDatagram.html#method.connect_addr)
- [`std::os::unix::net::UnixDatagram::send_to_addr`]
  (https://doc.rust-lang.org/stable/std/os/unix/net/struct.UnixDatagram.html#method.send_to_addr)
- [`std::os::unix::net::UnixListener::bind_addr`]
  (https://doc.rust-lang.org/stable/std/os/unix/net/struct.UnixListener.html#method.bind_addr)
- [`std::path::Path::as_mut_os_str`]
  (https://doc.rust-lang.org/stable/std/path/struct.Path.html#method.as_mut_os_str)
- [`std::sync::OnceLock`]
  (https://doc.rust-lang.org/stable/std/sync/struct.OnceLock.html)

Cargo
-----

- [Add `CARGO_PKG_README`]
  (rust-lang/cargo#11645)
- [Make `sparse` the default protocol for crates.io]
  (rust-lang/cargo#11791)
- [Accurately show status when downgrading dependencies]
  (rust-lang/cargo#11839)
- [Use registry.default for login/logout]
  (rust-lang/cargo#11949)
- [Stabilize `cargo logout`]
  (rust-lang/cargo#11950)

Misc
----

- [Stabilize rustdoc `--test-run-directory`]
  (rust-lang/rust#103682)

Compatibility Notes
-------------------

- [Prevent stable `libtest` from supporting `-Zunstable-options`]
  (rust-lang/rust#109044)
- [Perform const and unsafe checking for expressions in `let _ =
  expr` position.] (rust-lang/rust#102256)
- [WebAssembly targets enable `sign-ext` and `mutable-globals`
  features in codegen] (rust-lang/rust#109807)
  This may cause incompatibility with older execution environments.
- [Insert alignment checks for pointer dereferences as debug assertions]
  (rust-lang/rust#98112)
  This catches undefined behavior at runtime, and may cause existing
  code to fail.

Internal Changes
----------------

These changes do not affect any public interfaces of Rust, but they represent
significant improvements to the performance or internals of rustc and related
tools.

- [Upgrade to LLVM 16]
  (rust-lang/rust#109474)
- [Use SipHash-1-3 instead of SipHash-2-4 for StableHasher]
  (rust-lang/rust#107925)
netbsd-srcmastr pushed a commit to NetBSD/pkgsrc that referenced this pull request Jul 10, 2023
Pkgsrc changes:
 * Adjust patches and cargo checksums to new versions.
 * Add support for NetBSD/riscv64.

Upstream changes:

Version 1.70.0 (2023-06-01)
==========================

Language
--------
- [Relax ordering rules for `asm!` operands]
  (rust-lang/rust#105798)
- [Properly allow macro expanded `format_args` invocations to uses captures]
  (rust-lang/rust#106505)
- [Lint ambiguous glob re-exports]
  (rust-lang/rust#107880)
- [Perform const and unsafe checking for expressions in `let _ =
  expr` position.]
  (rust-lang/rust#102256)

Compiler
--------
- [Extend -Cdebuginfo with new options and named aliases]
  (rust-lang/rust#109808)
  This provides a smaller version of debuginfo for cases that only
  need line number information (`-Cdebuginfo=line-tables-only`),
  which may eventually become the default for `-Cdebuginfo=1`.
- [Make `unused_allocation` lint against `Box::new` too]
  (rust-lang/rust#104363)
- [Detect uninhabited types early in const eval]
  (rust-lang/rust#109435)
- [Switch to LLD as default linker for {arm,thumb}v4t-none-eabi]
  (rust-lang/rust#109721)
- [Add tier 3 target `loongarch64-unknown-linux-gnu`]
  (rust-lang/rust#96971)
- [Add tier 3 target for `i586-pc-nto-qnx700`(QNX Neutrino RTOS, version 7.0)]
  (rust-lang/rust#109173),
- [Insert alignment checks for pointer dereferences as debug assertions]
  (rust-lang/rust#98112)
  This catches undefined behavior at runtime, and may cause existing
  code to fail.

Refer to Rust's [platform support page][platform-support-doc]
for more information on Rust's tiered platform support.

Libraries
---------
- [Document NonZeroXxx layout guarantees]
  (rust-lang/rust#94786)
- [Windows: make `Command` prefer non-verbatim paths]
  (rust-lang/rust#96391)
- [Implement Default for some alloc/core iterators]
  (rust-lang/rust#99929)
- [Fix handling of trailing bare CR in str::lines]
  (rust-lang/rust#100311)
- [allow negative numeric literals in `concat!`]
  (rust-lang/rust#106844)
- [Add documentation about the memory layout of `Cell`]
  (rust-lang/rust#106921)
- [Use `partial_cmp` to implement tuple `lt`/`le`/`ge`/`gt`]
  (rust-lang/rust#108157)
- [Stabilize `atomic_as_ptr`]
  (rust-lang/rust#108419)
- [Stabilize `nonnull_slice_from_raw_parts`]
  (rust-lang/rust#97506)
- [Partial stabilization of `once_cell`]
  (rust-lang/rust#105587)
- [Stabilize `nonzero_min_max`]
  (rust-lang/rust#106633)
- [Flatten/inline format_args!() and (string and int) literal
  arguments into format_args!()]
  (rust-lang/rust#106824)
- [Stabilize movbe target feature]
  (rust-lang/rust#107711)
- [don't splice from files into pipes in io::copy]
  (rust-lang/rust#108283)
- [Add a builtin unstable `FnPtr` trait that is implemented for
  all function pointers]
  (rust-lang/rust#108080)
  This extends `Debug`, `Pointer`, `Hash`, `PartialEq`, `Eq`,
  `PartialOrd`, and `Ord` implementations for function pointers
  with all ABIs.


Stabilized APIs
---------------

- [`NonZero*::MIN/MAX`]
  (https://doc.rust-lang.org/stable/std/num/struct.NonZeroI8.html#associatedconstant.MIN)
- [`BinaryHeap::retain`]
  (https://doc.rust-lang.org/stable/std/collections/struct.BinaryHeap.html#method.retain)
- [`Default for std::collections::binary_heap::IntoIter`]
  (https://doc.rust-lang.org/stable/std/collections/binary_heap/struct.IntoIter.html)
- [`Default for std::collections::btree_map::{IntoIter, Iter, IterMut}`]
  (https://doc.rust-lang.org/stable/std/collections/btree_map/struct.IntoIter.html)
- [`Default for std::collections::btree_map::{IntoKeys, Keys}`]
  (https://doc.rust-lang.org/stable/std/collections/btree_map/struct.IntoKeys.html)
- [`Default for std::collections::btree_map::{IntoValues, Values}`]
  (https://doc.rust-lang.org/stable/std/collections/btree_map/struct.IntoKeys.html)
- [`Default for std::collections::btree_map::Range`]
  (https://doc.rust-lang.org/stable/std/collections/btree_map/struct.Range.html)
- [`Default for std::collections::btree_set::{IntoIter, Iter}`]
  (https://doc.rust-lang.org/stable/std/collections/btree_set/struct.IntoIter.html)
- [`Default for std::collections::btree_set::Range`]
  (https://doc.rust-lang.org/stable/std/collections/btree_set/struct.Range.html)
- [`Default for std::collections::linked_list::{IntoIter, Iter, IterMut}`]
  (https://doc.rust-lang.org/stable/alloc/collections/linked_list/struct.IntoIter.html)
- [`Default for std::vec::IntoIter`]
  (https://doc.rust-lang.org/stable/alloc/vec/struct.IntoIter.html#impl-Default-for-IntoIter%3CT,+A%3E)
- [`Default for std::iter::Chain`]
  (https://doc.rust-lang.org/stable/std/iter/struct.Chain.html)
- [`Default for std::iter::Cloned`]
  (https://doc.rust-lang.org/stable/std/iter/struct.Cloned.html)
- [`Default for std::iter::Copied`]
  (https://doc.rust-lang.org/stable/std/iter/struct.Copied.html)
- [`Default for std::iter::Enumerate`]
  (https://doc.rust-lang.org/stable/std/iter/struct.Enumerate.html)
- [`Default for std::iter::Flatten`]
  (https://doc.rust-lang.org/stable/std/iter/struct.Flatten.html)
- [`Default for std::iter::Fuse`]
  (https://doc.rust-lang.org/stable/std/iter/struct.Fuse.html)
- [`Default for std::iter::Rev`]
  (https://doc.rust-lang.org/stable/std/iter/struct.Rev.html)
- [`Default for std::slice::Iter`]
  (https://doc.rust-lang.org/stable/std/slice/struct.Iter.html)
- [`Default for std::slice::IterMut`]
  (https://doc.rust-lang.org/stable/std/slice/struct.IterMut.html)
- [`Rc::into_inner`]
  (https://doc.rust-lang.org/stable/alloc/rc/struct.Rc.html#method.into_inner)
- [`Arc::into_inner`]
  (https://doc.rust-lang.org/stable/alloc/sync/struct.Arc.html#method.into_inner)
- [`std::cell::OnceCell`]
  (https://doc.rust-lang.org/stable/std/cell/struct.OnceCell.html)
- [`Option::is_some_and`]
  (https://doc.rust-lang.org/stable/std/option/enum.Option.html#method.is_some_and)
- [`NonNull::slice_from_raw_parts`]
  (https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.slice_from_raw_parts)
- [`Result::is_ok_and`]
  (https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.is_ok_and)
- [`Result::is_err_and`]
  (https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.is_err_and)
- [`std::sync::atomic::Atomic*::as_ptr`]
  (https://doc.rust-lang.org/stable/std/sync/atomic/struct.AtomicU8.html#method.as_ptr)
- [`std::io::IsTerminal`]
  (https://doc.rust-lang.org/stable/std/io/trait.IsTerminal.html)
- [`std::os::linux::net::SocketAddrExt`]
  (https://doc.rust-lang.org/stable/std/os/linux/net/trait.SocketAddrExt.html)
- [`std::os::unix::net::UnixDatagram::bind_addr`]
  (https://doc.rust-lang.org/stable/std/os/unix/net/struct.UnixDatagram.html#method.bind_addr)
- [`std::os::unix::net::UnixDatagram::connect_addr`]
  (https://doc.rust-lang.org/stable/std/os/unix/net/struct.UnixDatagram.html#method.connect_addr)
- [`std::os::unix::net::UnixDatagram::send_to_addr`]
  (https://doc.rust-lang.org/stable/std/os/unix/net/struct.UnixDatagram.html#method.send_to_addr)
- [`std::os::unix::net::UnixListener::bind_addr`]
  (https://doc.rust-lang.org/stable/std/os/unix/net/struct.UnixListener.html#method.bind_addr)
- [`std::path::Path::as_mut_os_str`]
  (https://doc.rust-lang.org/stable/std/path/struct.Path.html#method.as_mut_os_str)
- [`std::sync::OnceLock`]
  (https://doc.rust-lang.org/stable/std/sync/struct.OnceLock.html)

Cargo
-----

- [Add `CARGO_PKG_README`]
  (rust-lang/cargo#11645)
- [Make `sparse` the default protocol for crates.io]
  (rust-lang/cargo#11791)
- [Accurately show status when downgrading dependencies]
  (rust-lang/cargo#11839)
- [Use registry.default for login/logout]
  (rust-lang/cargo#11949)
- [Stabilize `cargo logout`]
  (rust-lang/cargo#11950)

Misc
----

- [Stabilize rustdoc `--test-run-directory`]
  (rust-lang/rust#103682)

Compatibility Notes
-------------------

- [Prevent stable `libtest` from supporting `-Zunstable-options`]
  (rust-lang/rust#109044)
- [Perform const and unsafe checking for expressions in `let _ =
  expr` position.]
  (rust-lang/rust#102256)
- [WebAssembly targets enable `sign-ext` and `mutable-globals`
  features in codegen]
  (rust-lang/rust#109807)
  This may cause incompatibility with older execution environments.
- [Insert alignment checks for pointer dereferences as debug assertions]
  (rust-lang/rust#98112)
  This catches undefined behavior at runtime, and may cause existing
  code to fail.

Internal Changes
----------------

These changes do not affect any public interfaces of Rust, but they represent
significant improvements to the performance or internals of rustc and related
tools.

- [Upgrade to LLVM 16]
  (rust-lang/rust#109474)
- [Use SipHash-1-3 instead of SipHash-2-4 for StableHasher]
  (rust-lang/rust#107925)
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