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Stabilize asm_const #128570

Merged
merged 1 commit into from
Aug 14, 2024
Merged

Stabilize asm_const #128570

merged 1 commit into from
Aug 14, 2024

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folkertdev
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tracking issue: #93332

reference PR: rust-lang/reference#1556

this will probably require some CI wrangling (and a rebase), so let's get that over with even though the final required PR is not merged yet.

r? @ghost

@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 Aug 2, 2024
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bors commented Aug 4, 2024

☔ The latest upstream changes (presumably #128634) made this pull request unmergeable. Please resolve the merge conflicts.

@folkertdev folkertdev force-pushed the stabilize-asm-const branch from 4c138d6 to bd5d2be Compare August 6, 2024 16:22
@folkertdev folkertdev marked this pull request as ready for review August 6, 2024 18:45
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rustbot commented Aug 6, 2024

Some changes occurred in compiler/rustc_codegen_gcc

cc @antoyo, @GuillaumeGomez

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r? @Amanieu

@rustbot ready

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bors commented Aug 10, 2024

☔ The latest upstream changes (presumably #122792) made this pull request unmergeable. Please resolve the merge conflicts.

@folkertdev folkertdev force-pushed the stabilize-asm-const branch from bd5d2be to 4babdd9 Compare August 10, 2024 16:06
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rustbot commented Aug 10, 2024

Some changes occurred in src/tools/cargo

cc @ehuss

@folkertdev folkertdev force-pushed the stabilize-asm-const branch from 4babdd9 to e0e2814 Compare August 10, 2024 16:13

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szokeasaurusrex Daniel Szoke
@folkertdev folkertdev force-pushed the stabilize-asm-const branch from e0e2814 to 8419c09 Compare August 13, 2024 21:18
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Amanieu commented Aug 14, 2024

@bors r+

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bors commented Aug 14, 2024

📌 Commit 8419c09 has been approved by Amanieu

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 Aug 14, 2024
bors added a commit to rust-lang-ci/rust that referenced this pull request Aug 14, 2024
Rollup of 6 pull requests

Successful merges:

 - rust-lang#128570 (Stabilize `asm_const`)
 - rust-lang#128828 (`-Znext-solver` caching)
 - rust-lang#128954 (Explicitly specify type parameter on FromResidual for Option and ControlFlow.)
 - rust-lang#129059 (Record the correct target type when coercing fn items/closures to pointers)
 - rust-lang#129071 (Port `run-make/sysroot-crates-are-unstable` to rmake)
 - rust-lang#129088 (Make the rendered html doc for rustc better)

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit 196d256 into rust-lang:master Aug 14, 2024
6 checks passed
@rustbot rustbot added this to the 1.82.0 milestone Aug 14, 2024
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Aug 14, 2024
Rollup merge of rust-lang#128570 - folkertdev:stabilize-asm-const, r=Amanieu

Stabilize `asm_const`

tracking issue: rust-lang#93332

reference PR: rust-lang/reference#1556

this will probably require some CI wrangling (and a rebase), so let's get that over with even though the final required PR is not merged yet.

r? `@ghost`
@ehuss ehuss added the relnotes Marks issues that should be documented in the release notes of the next release. label Aug 20, 2024
@Mark-Simulacrum Mark-Simulacrum added relnotes Marks issues that should be documented in the release notes of the next release. and removed relnotes Marks issues that should be documented in the release notes of the next release. labels Aug 25, 2024
luojia65 added a commit to rustsbi/rustsbi that referenced this pull request Sep 11, 2024
This feature is stablized in Rust 1.82.0: rust-lang/rust#128570

Signed-off-by: Zhouqi Jiang <luojia@hust.edu.cn>
tmeijn pushed a commit to tmeijn/dotfiles that referenced this pull request Oct 18, 2024
This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [rust](https://github.com/rust-lang/rust) | minor | `1.81.0` -> `1.82.0` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

---

### Release Notes

<details>
<summary>rust-lang/rust (rust)</summary>

### [`v1.82.0`](https://github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1820-2024-10-17)

[Compare Source](rust-lang/rust@1.81.0...1.82.0)

\==========================

<a id="1.82.0-Language"></a>

## Language

-   [Don't make statement nonterminals match pattern nonterminals](rust-lang/rust#120221)
-   [Patterns matching empty types can now be omitted in common cases](rust-lang/rust#122792)
-   [Enforce supertrait outlives obligations when using trait impls](rust-lang/rust#124336)
-   [`addr_of(_mut)!` macros and the newly stabilized `&raw (const|mut)` are now safe to use with all static items](rust-lang/rust#125834)
-   [size_of_val_raw: for length 0 this is safe to call](rust-lang/rust#126152)
-   [Reorder trait bound modifiers *after* `for<...>` binder in trait bounds](rust-lang/rust#127054)
-   [Stabilize opaque type precise capturing (RFC 3617)](rust-lang/rust#127672)
-   [Stabilize `&raw const` and `&raw mut` operators (RFC 2582)](rust-lang/rust#127679)
-   [Stabilize unsafe extern blocks (RFC 3484)](rust-lang/rust#127921)
-   [Stabilize nested field access in `offset_of!`](rust-lang/rust#128284)
-   [Do not require `T` to be live when dropping `[T; 0]`](rust-lang/rust#128438)
-   [Stabilize `const` operands in inline assembly](rust-lang/rust#128570)
-   [Stabilize floating-point arithmetic in `const fn`](rust-lang/rust#128596)
-   [Stabilize explicit opt-in to unsafe attributes](rust-lang/rust#128771)
-   [Document NaN bit patterns guarantees](rust-lang/rust#129559)

<a id="1.82.0-Compiler"></a>

## Compiler

-   [Promote riscv64gc-unknown-linux-musl to tier 2](rust-lang/rust#122049)
-   [Promote Mac Catalyst targets `aarch64-apple-ios-macabi` and `x86_64-apple-ios-macabi` to Tier 2, and ship them with rustup](rust-lang/rust#126450)
-   [Add tier 3 NuttX based targets for RISC-V and ARM](rust-lang/rust#127755)
-   [Add tier 3 powerpc-unknown-linux-muslspe target](rust-lang/rust#127905)
-   [Improved diagnostics to explain why a pattern is unreachable](rust-lang/rust#128034)
-   [The compiler now triggers the unreachable code warning properly for async functions that don't return/are `-> !`](rust-lang/rust#128443)
-   [Promote `aarch64-apple-darwin` to Tier 1](rust-lang/rust#128592)
-   [Add Trusty OS target `aarch64-unknown-trusty` and `armv7-unknown-trusty` as tier 3 targets](rust-lang/rust#129490)
-   [Promote `wasm32-wasip2` to Tier 2.](rust-lang/rust#126967)

<a id="1.82.0-Libraries"></a>

## Libraries

-   [Generalize `{Rc,Arc}::make_mut()` to `Path`, `OsStr`, and `CStr`.](rust-lang/rust#126877)

<a id="1.82.0-Stabilized-APIs"></a>

## Stabilized APIs

-   [`std::thread::Builder::spawn_unchecked`](https://doc.rust-lang.org/stable/std/thread/struct.Builder.html#method.spawn_unchecked)
-   [`std::str::CharIndices::offset`](https://doc.rust-lang.org/nightly/std/str/struct.CharIndices.html#method.offset)
-   [`std::option::Option::is_none_or`](https://doc.rust-lang.org/nightly/std/option/enum.Option.html#method.is_none_or)
-   [`[T]::is_sorted`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.is_sorted)
-   [`[T]::is_sorted_by`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.is_sorted_by)
-   [`[T]::is_sorted_by_key`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.is_sorted_by_key)
-   [`Iterator::is_sorted`](https://doc.rust-lang.org/nightly/std/iter/trait.Iterator.html#method.is_sorted)
-   [`Iterator::is_sorted_by`](https://doc.rust-lang.org/nightly/std/iter/trait.Iterator.html#method.is_sorted_by)
-   [`Iterator::is_sorted_by_key`](https://doc.rust-lang.org/nightly/std/iter/trait.Iterator.html#method.is_sorted_by_key)
-   [`std::future::Ready::into_inner`](https://doc.rust-lang.org/nightly/std/future/struct.Ready.html#method.into_inner)
-   [`std::iter::repeat_n`](https://doc.rust-lang.org/nightly/std/iter/fn.repeat_n.html)
-   [`impl<T: Clone> DoubleEndedIterator for Take<Repeat<T>>`](https://doc.rust-lang.org/nightly/std/iter/struct.Take.html#impl-DoubleEndedIterator-for-Take%3CRepeat%3CT%3E%3E)
-   [`impl<T: Clone> ExactSizeIterator for Take<Repeat<T>>`](https://doc.rust-lang.org/nightly/std/iter/struct.Take.html#impl-ExactSizeIterator-for-Take%3CRepeat%3CT%3E%3E)
-   [`impl<T: Clone> ExactSizeIterator for Take<RepeatWith<T>>`](https://doc.rust-lang.org/nightly/std/iter/struct.Take.html#impl-ExactSizeIterator-for-Take%3CRepeatWith%3CF%3E%3E)
-   [`impl Default for std::collections::binary_heap::Iter`](https://doc.rust-lang.org/nightly/std/collections/binary_heap/struct.Iter.html#impl-Default-for-Iter%3C'\_,+T%3E)
-   [`impl Default for std::collections::btree_map::RangeMut`](https://doc.rust-lang.org/nightly/std/collections/btree_map/struct.RangeMut.html#impl-Default-for-RangeMut%3C'\_,+K,+V%3E)
-   [`impl Default for std::collections::btree_map::ValuesMut`](https://doc.rust-lang.org/nightly/std/collections/btree_map/struct.ValuesMut.html#impl-Default-for-ValuesMut%3C'\_,+K,+V%3E)
-   [`impl Default for std::collections::vec_deque::Iter`](https://doc.rust-lang.org/nightly/std/collections/vec_deque/struct.Iter.html#impl-Default-for-Iter%3C'\_,+T%3E)
-   [`impl Default for std::collections::vec_deque::IterMut`](https://doc.rust-lang.org/nightly/std/collections/vec_deque/struct.IterMut.html#impl-Default-for-IterMut%3C'\_,+T%3E)
-   [`Rc<T>::new_uninit`](https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.new_uninit)
-   [`Rc<T>::assume_init`](https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.assume_init)
-   [`Rc<[T]>::new_uninit_slice`](https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.new_uninit_slice)
-   [`Rc<[MaybeUninit<T>]>::assume_init`](https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.assume_init-1)
-   [`Arc<T>::new_uninit`](https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.new_uninit)
-   [`Arc<T>::assume_init`](https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.assume_init)
-   [`Arc<[T]>::new_uninit_slice`](https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.new_uninit_slice)
-   [`Arc<[MaybeUninit<T>]>::assume_init`](https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.assume_init-1)
-   [`Box<T>::new_uninit`](https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.new_uninit)
-   [`Box<T>::assume_init`](https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.assume_init)
-   [`Box<[T]>::new_uninit_slice`](https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.new_uninit_slice)
-   [`Box<[MaybeUninit<T>]>::assume_init`](https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.assume_init-1)
-   [`core::arch::x86_64::_bextri_u64`](https://doc.rust-lang.org/stable/core/arch/x86\_64/fn.\_bextri_u64.html)
-   [`core::arch::x86_64::_bextri_u32`](https://doc.rust-lang.org/stable/core/arch/x86\_64/fn.\_bextri_u32.html)
-   [`core::arch::x86::_mm_broadcastsi128_si256`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_broadcastsi128\_si256.html)
-   [`core::arch::x86::_mm256_stream_load_si256`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm256\_stream_load_si256.html)
-   [`core::arch::x86::_tzcnt_u16`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_tzcnt_u16.html)
-   [`core::arch::x86::_mm_extracti_si64`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_extracti_si64.html)
-   [`core::arch::x86::_mm_inserti_si64`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_inserti_si64.html)
-   [`core::arch::x86::_mm_storeu_si16`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_storeu_si16.html)
-   [`core::arch::x86::_mm_storeu_si32`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_storeu_si32.html)
-   [`core::arch::x86::_mm_storeu_si64`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_storeu_si64.html)
-   [`core::arch::x86::_mm_loadu_si16`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_loadu_si16.html)
-   [`core::arch::x86::_mm_loadu_si32`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_loadu_si32.html)
-   [`core::arch::wasm32::u8x16_relaxed_swizzle`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u8x16\_relaxed_swizzle.html)
-   [`core::arch::wasm32::i8x16_relaxed_swizzle`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i8x16\_relaxed_swizzle.html)
-   [`core::arch::wasm32::i32x4_relaxed_trunc_f32x4`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i32x4\_relaxed_trunc_f32x4.html)
-   [`core::arch::wasm32::u32x4_relaxed_trunc_f32x4`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u32x4\_relaxed_trunc_f32x4.html)
-   [`core::arch::wasm32::i32x4_relaxed_trunc_f64x2_zero`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i32x4\_relaxed_trunc_f64x2\_zero.html)
-   [`core::arch::wasm32::u32x4_relaxed_trunc_f64x2_zero`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u32x4\_relaxed_trunc_f64x2\_zero.html)
-   [`core::arch::wasm32::f32x4_relaxed_madd`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f32x4\_relaxed_madd.html)
-   [`core::arch::wasm32::f32x4_relaxed_nmadd`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f32x4\_relaxed_nmadd.html)
-   [`core::arch::wasm32::f64x2_relaxed_madd`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f64x2\_relaxed_madd.html)
-   [`core::arch::wasm32::f64x2_relaxed_nmadd`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f64x2\_relaxed_nmadd.html)
-   [`core::arch::wasm32::i8x16_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i8x16\_relaxed_laneselect.html)
-   [`core::arch::wasm32::u8x16_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u8x16\_relaxed_laneselect.html)
-   [`core::arch::wasm32::i16x8_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i16x8\_relaxed_laneselect.html)
-   [`core::arch::wasm32::u16x8_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u16x8\_relaxed_laneselect.html)
-   [`core::arch::wasm32::i32x4_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i32x4\_relaxed_laneselect.html)
-   [`core::arch::wasm32::u32x4_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u32x4\_relaxed_laneselect.html)
-   [`core::arch::wasm32::i64x2_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i64x2\_relaxed_laneselect.html)
-   [`core::arch::wasm32::u64x2_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u64x2\_relaxed_laneselect.html)
-   [`core::arch::wasm32::f32x4_relaxed_min`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f32x4\_relaxed_min.html)
-   [`core::arch::wasm32::f32x4_relaxed_max`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f32x4\_relaxed_max.html)
-   [`core::arch::wasm32::f64x2_relaxed_min`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f64x2\_relaxed_min.html)
-   [`core::arch::wasm32::f64x2_relaxed_max`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f64x2\_relaxed_max.html)
-   [`core::arch::wasm32::i16x8_relaxed_q15mulr`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i16x8\_relaxed_q15mulr.html)
-   [`core::arch::wasm32::u16x8_relaxed_q15mulr`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u16x8\_relaxed_q15mulr.html)
-   [`core::arch::wasm32::i16x8_relaxed_dot_i8x16_i7x16`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i16x8\_relaxed_dot_i8x16\_i7x16.html)
-   [`core::arch::wasm32::u16x8_relaxed_dot_i8x16_i7x16`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u16x8\_relaxed_dot_i8x16\_i7x16.html)
-   [`core::arch::wasm32::i32x4_relaxed_dot_i8x16_i7x16_add`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i32x4\_relaxed_dot_i8x16\_i7x16\_add.html)
-   [`core::arch::wasm32::u32x4_relaxed_dot_i8x16_i7x16_add`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u32x4\_relaxed_dot_i8x16\_i7x16\_add.html)

These APIs are now stable in const contexts:

-   [`std::task::Waker::from_raw`](https://doc.rust-lang.org/nightly/std/task/struct.Waker.html#method.from_raw)
-   [`std::task::Context::from_waker`](https://doc.rust-lang.org/nightly/std/task/struct.Context.html#method.from_waker)
-   [`std::task::Context::waker`](https://doc.rust-lang.org/nightly/std/task/struct.Context.html#method.waker)
-   [`$integer::from_str_radix`](https://doc.rust-lang.org/nightly/std/primitive.u32.html#method.from_str_radix)
-   [`std::num::ParseIntError::kind`](https://doc.rust-lang.org/nightly/std/num/struct.ParseIntError.html#method.kind)

<a id="1.82.0-Cargo"></a>

## Cargo

-   [feat: Add `info` cargo subcommand](rust-lang/cargo#14141)

<a id="1.82.0-Compatibility-Notes"></a>

## Compatibility Notes

-   We now [disallow setting some built-in cfgs via the command-line](rust-lang/rust#126158) with the newly added [`explicit_builtin_cfgs_in_flags`](https://doc.rust-lang.org/rustc/lints/listing/deny-by-default.html#explicit-builtin-cfgs-in-flags) lint in order to prevent incoherent state, eg. `windows` cfg active but target is Linux based. The appropriate [`rustc` flag](https://doc.rust-lang.org/rustc/command-line-arguments.html) should be used instead.
-   The standard library has a new implementation of `binary_search` which is significantly improves performance ([#&#8203;128254](rust-lang/rust#128254)). However when a sorted slice has multiple values which compare equal, the new implementation may select a different value among the equal ones than the old implementation.
-   [illumos/Solaris now sets `MSG_NOSIGNAL` when writing to sockets](rust-lang/rust#128259). This avoids killing the process with SIGPIPE when writing to a closed socket, which matches the existing behavior on other UNIX targets.
-   [Removes a problematic hack that always passed the --whole-archive linker flag for tests, which may cause linker errors for code accidentally relying on it.](rust-lang/rust#128400)
-   The WebAssembly target features `multivalue` and `reference-types` are now
    both enabled by default. These two features both have subtle changes implied
    for generated WebAssembly binaries. For the `multivalue` feature, WebAssembly
    target support has changed when upgrading to LLVM 19. Support for generating
    functions with multiple returns no longer works and
    `-Ctarget-feature=+multivalue` has a different meaning than it did in LLVM 18
    and prior. There is no longer any supported means to generate a module that has
    a function with multiple returns in WebAssembly from Rust source code. For the
    `reference-types` feature the encoding of immediates in the `call_indirect`, a
    commonly used instruction by the WebAssembly backend, has changed. Validators
    and parsers which don't understand the `reference-types` proposal will no
    longer accept modules produced by LLVM due to this change in encoding of
    immediates. Additionally these features being enabled are encoded in the
    `target_features` custom section and may affect downstream tooling such as
    `wasm-opt` consuming the module. Generating a WebAssembly module that disables
    default features requires `-Zbuild-std` support from Cargo and more information
    can be found at
    [rust-lang/rust#128511](rust-lang/rust#128511).
-   [Rust now raises unsafety errors for union patterns in parameter-position](rust-lang/rust#130531)

<a id="1.82.0-Internal-Changes"></a>

## 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.

-   [Update to LLVM 19](rust-lang/rust#127513)

</details>

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---

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wip-sync pushed a commit to NetBSD/pkgsrc-wip that referenced this pull request Oct 27, 2024
Pkgsrc changes:
 * Adapt patches, apply to new vendored crates where needed.
 * Back-port rust pull request 130110, "make dist vendoring configurable"
 * Disable "dist vendoring", otherwise cargo would try to access
   the network during the build phase.

Upstream changes:

Version 1.82.0 (2024-10-17)
==========================

Language
--------
- [Don't make statement nonterminals match pattern nonterminals]
  (rust-lang/rust#120221)
- [Patterns matching empty types can now be omitted in common cases]
  (rust-lang/rust#122792)
- [Enforce supertrait outlives obligations when using trait impls]
  (rust-lang/rust#124336)
- [`addr_of(_mut)!` macros and the newly stabilized `&raw (const|mut)`
  are now safe to use with all static items]
  (rust-lang/rust#125834)
- [size_of_val_raw: for length 0 this is safe to call]
  (rust-lang/rust#126152)
- [Reorder trait bound modifiers *after* `for<...>` binder in trait bounds]
  (rust-lang/rust#127054)
- [Stabilize opaque type precise capturing (RFC 3617)]
  (rust-lang/rust#127672)
- [Stabilize `&raw const` and `&raw mut` operators (RFC 2582)]
  (rust-lang/rust#127679)
- [Stabilize unsafe extern blocks (RFC 3484)]
  (rust-lang/rust#127921)
- [Stabilize nested field access in `offset_of!`]
  (rust-lang/rust#128284)
- [Do not require `T` to be live when dropping `[T; 0]`]
  (rust-lang/rust#128438)
- [Stabilize `const` operands in inline assembly]
  (rust-lang/rust#128570)
- [Stabilize floating-point arithmetic in `const fn`]
  (rust-lang/rust#128596)
- [Stabilize explicit opt-in to unsafe attributes]
  (rust-lang/rust#128771)
- [Document NaN bit patterns guarantees]
  (rust-lang/rust#129559)

Compiler
--------
- [Promote riscv64gc-unknown-linux-musl to tier 2]
  (rust-lang/rust#122049)
- [Promote Mac Catalyst targets `aarch64-apple-ios-macabi` and
  `x86_64-apple-ios-macabi` to Tier 2, and ship them with rustup]
  (rust-lang/rust#126450)
- [Add tier 3 NuttX based targets for RISC-V and ARM]
  (rust-lang/rust#127755)
- [Add tier 3 powerpc-unknown-linux-muslspe target]
  (rust-lang/rust#127905)
- [Improved diagnostics to explain why a pattern is unreachable]
  (rust-lang/rust#128034)
- [The compiler now triggers the unreachable code warning properly
  for async functions that don't return/are `-> !`]
  (rust-lang/rust#128443)
- [Promote `aarch64-apple-darwin` to Tier 1]
  (rust-lang/rust#128592)
- [Add Trusty OS target `aarch64-unknown-trusty` and `armv7-unknown-trusty`
  as tier 3 targets] (rust-lang/rust#129490)
- [Promote `wasm32-wasip2` to Tier 2.]
  (rust-lang/rust#126967)

Libraries
---------
- [Generalize `{Rc,Arc}::make_mut()` to `Path`, `OsStr`, and `CStr`.]
  (rust-lang/rust#126877)

Stabilized APIs
---------------
- [`std::thread::Builder::spawn_unchecked`]
  (https://doc.rust-lang.org/stable/std/thread/struct.Builder.html#method.spawn_unchecked)
- [`std::str::CharIndices::offset`]
  (https://doc.rust-lang.org/nightly/std/str/struct.CharIndices.html#method.offset)
- [`std::option::Option::is_none_or`]
  (https://doc.rust-lang.org/nightly/std/option/enum.Option.html#method.is_none_or)
- [`[T]::is_sorted`]
  (https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.is_sorted)
- [`[T]::is_sorted_by`]
  (https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.is_sorted_by)
- [`[T]::is_sorted_by_key`]
  (https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.is_sorted_by_key)
- [`Iterator::is_sorted`]
  (https://doc.rust-lang.org/nightly/std/iter/trait.Iterator.html#method.is_sorted)
- [`Iterator::is_sorted_by`]
  (https://doc.rust-lang.org/nightly/std/iter/trait.Iterator.html#method.is_sorted_by)
- [`Iterator::is_sorted_by_key`]
  (https://doc.rust-lang.org/nightly/std/iter/trait.Iterator.html#method.is_sorted_by_key)
- [`std::future::Ready::into_inner`]
  (https://doc.rust-lang.org/nightly/std/future/struct.Ready.html#method.into_inner)
- [`std::iter::repeat_n`]
  (https://doc.rust-lang.org/nightly/std/iter/fn.repeat_n.html)
- [`impl<T: Clone> DoubleEndedIterator for Take<Repeat<T>>`]
  (https://doc.rust-lang.org/nightly/std/iter/struct.Take.html#impl-DoubleEndedIterator-for-Take%3CRepeat%3CT%3E%3E)
- [`impl<T: Clone> ExactSizeIterator for Take<Repeat<T>>`]
  (https://doc.rust-lang.org/nightly/std/iter/struct.Take.html#impl-ExactSizeIterator-for-Take%3CRepeat%3CT%3E%3E)
- [`impl<T: Clone> ExactSizeIterator for Take<RepeatWith<T>>`]
  (https://doc.rust-lang.org/nightly/std/iter/struct.Take.html#impl-ExactSizeIterator-for-Take%3CRepeatWith%3CF%3E%3E)
- [`impl Default for std::collections::binary_heap::Iter`]
  (https://doc.rust-lang.org/nightly/std/collections/binary_heap/struct.Iter.html#impl-Default-for-Iter%3C'_,+T%3E)
- [`impl Default for std::collections::btree_map::RangeMut`]
  (https://doc.rust-lang.org/nightly/std/collections/btree_map/struct.RangeMut.html#impl-Default-for-RangeMut%3C'_,+K,+V%3E)
- [`impl Default for std::collections::btree_map::ValuesMut`]
  (https://doc.rust-lang.org/nightly/std/collections/btree_map/struct.ValuesMut.html#impl-Default-for-ValuesMut%3C'_,+K,+V%3E)
- [`impl Default for std::collections::vec_deque::Iter`]
  (https://doc.rust-lang.org/nightly/std/collections/vec_deque/struct.Iter.html#impl-Default-for-Iter%3C'_,+T%3E)
- [`impl Default for std::collections::vec_deque::IterMut`]
  (https://doc.rust-lang.org/nightly/std/collections/vec_deque/struct.IterMut.html#impl-Default-for-IterMut%3C'_,+T%3E)
- [`Rc<T>::new_uninit`]
  (https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.new_uninit)
- [`Rc<T>::assume_init`]
  (https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.assume_init)
- [`Rc<[T]>::new_uninit_slice`]
  (https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.new_uninit_slice)
- [`Rc<[MaybeUninit<T>]>::assume_init`]
  (https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.assume_init-1)
- [`Arc<T>::new_uninit`]
  (https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.new_uninit)
- [`Arc<T>::assume_init`]
  (https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.assume_init)
- [`Arc<[T]>::new_uninit_slice`]
  (https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.new_uninit_slice)
- [`Arc<[MaybeUninit<T>]>::assume_init`]
  (https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.assume_init-1)
- [`Box<T>::new_uninit`]
  (https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.new_uninit)
- [`Box<T>::assume_init`]
  (https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.assume_init)
- [`Box<[T]>::new_uninit_slice`]
  (https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.new_uninit_slice)
- [`Box<[MaybeUninit<T>]>::assume_init`]
  (https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.assume_init-1)
- [`core::arch::x86_64::_bextri_u64`]
  (https://doc.rust-lang.org/stable/core/arch/x86_64/fn._bextri_u64.html)
- [`core::arch::x86_64::_bextri_u32`]
  (https://doc.rust-lang.org/stable/core/arch/x86_64/fn._bextri_u32.html)
- [`core::arch::x86::_mm_broadcastsi128_si256`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_broadcastsi128_si256.html)
- [`core::arch::x86::_mm256_stream_load_si256`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm256_stream_load_si256.html)
- [`core::arch::x86::_tzcnt_u16`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._tzcnt_u16.html)
- [`core::arch::x86::_mm_extracti_si64`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_extracti_si64.html)
- [`core::arch::x86::_mm_inserti_si64`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_inserti_si64.html)
- [`core::arch::x86::_mm_storeu_si16`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_storeu_si16.html)
- [`core::arch::x86::_mm_storeu_si32`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_storeu_si32.html)
- [`core::arch::x86::_mm_storeu_si64`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_storeu_si64.html)
- [`core::arch::x86::_mm_loadu_si16`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_loadu_si16.html)
- [`core::arch::x86::_mm_loadu_si32`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_loadu_si32.html)
- [`core::arch::wasm32::u8x16_relaxed_swizzle`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u8x16_relaxed_swizzle.html)
- [`core::arch::wasm32::i8x16_relaxed_swizzle`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i8x16_relaxed_swizzle.html)
- [`core::arch::wasm32::i32x4_relaxed_trunc_f32x4`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i32x4_relaxed_trunc_f32x4.html)
- [`core::arch::wasm32::u32x4_relaxed_trunc_f32x4`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u32x4_relaxed_trunc_f32x4.html)
- [`core::arch::wasm32::i32x4_relaxed_trunc_f64x2_zero`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i32x4_relaxed_trunc_f64x2_zero.html)
- [`core::arch::wasm32::u32x4_relaxed_trunc_f64x2_zero`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u32x4_relaxed_trunc_f64x2_zero.html)
- [`core::arch::wasm32::f32x4_relaxed_madd`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f32x4_relaxed_madd.html)
- [`core::arch::wasm32::f32x4_relaxed_nmadd`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f32x4_relaxed_nmadd.html)
- [`core::arch::wasm32::f64x2_relaxed_madd`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f64x2_relaxed_madd.html)
- [`core::arch::wasm32::f64x2_relaxed_nmadd`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f64x2_relaxed_nmadd.html)
- [`core::arch::wasm32::i8x16_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i8x16_relaxed_laneselect.html)
- [`core::arch::wasm32::u8x16_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u8x16_relaxed_laneselect.html)
- [`core::arch::wasm32::i16x8_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i16x8_relaxed_laneselect.html)
- [`core::arch::wasm32::u16x8_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u16x8_relaxed_laneselect.html)
- [`core::arch::wasm32::i32x4_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i32x4_relaxed_laneselect.html)
- [`core::arch::wasm32::u32x4_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u32x4_relaxed_laneselect.html)
- [`core::arch::wasm32::i64x2_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i64x2_relaxed_laneselect.html)
- [`core::arch::wasm32::u64x2_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u64x2_relaxed_laneselect.html)
- [`core::arch::wasm32::f32x4_relaxed_min`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f32x4_relaxed_min.html)
- [`core::arch::wasm32::f32x4_relaxed_max`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f32x4_relaxed_max.html)
- [`core::arch::wasm32::f64x2_relaxed_min`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f64x2_relaxed_min.html)
- [`core::arch::wasm32::f64x2_relaxed_max`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f64x2_relaxed_max.html)
- [`core::arch::wasm32::i16x8_relaxed_q15mulr`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i16x8_relaxed_q15mulr.html)
- [`core::arch::wasm32::u16x8_relaxed_q15mulr`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u16x8_relaxed_q15mulr.html)
- [`core::arch::wasm32::i16x8_relaxed_dot_i8x16_i7x16`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i16x8_relaxed_dot_i8x16_i7x16.html)
- [`core::arch::wasm32::u16x8_relaxed_dot_i8x16_i7x16`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u16x8_relaxed_dot_i8x16_i7x16.html)
- [`core::arch::wasm32::i32x4_relaxed_dot_i8x16_i7x16_add`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i32x4_relaxed_dot_i8x16_i7x16_add.html)
- [`core::arch::wasm32::u32x4_relaxed_dot_i8x16_i7x16_add`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u32x4_relaxed_dot_i8x16_i7x16_add.html)

These APIs are now stable in const contexts:

- [`std::task::Waker::from_raw`]
  (https://doc.rust-lang.org/nightly/std/task/struct.Waker.html#method.from_raw)
- [`std::task::Waker::waker`]
  (https://doc.rust-lang.org/nightly/std/task/struct.Waker.html#method.from_raw)
- [`std::task::Context::from_waker`]
  (https://doc.rust-lang.org/nightly/std/task/struct.Context.html#method.from_waker)
- [`std::task::Context::waker`]
  (https://doc.rust-lang.org/nightly/std/task/struct.Context.html#method.waker)
- [`$integer::from_str_radix`]
  (https://doc.rust-lang.org/nightly/std/primitive.u32.html#method.from_str_radix)
- [`std::num::ParseIntError::kind`]
  (https://doc.rust-lang.org/nightly/std/num/struct.ParseIntError.html#method.kind)

Cargo
-----
- [feat: Add `info` cargo subcommand]
  (rust-lang/cargo#14141)

Compatibility Notes
-------------------
 - We now [disallow setting some built-in cfgs via the
   command-line](rust-lang/rust#126158) with
   the newly added
   [`explicit_builtin_cfgs_in_flags`]
   (https://doc.rust-lang.org/rustc/lints/listing/deny-by-default.html#explicit-builtin-cfgs-in-flags)
   lint in order to prevent incoherent state, eg. `windows` cfg active
   but target is Linux based. The appropriate [`rustc` flag]
   (https://doc.rust-lang.org/rustc/command-line-arguments.html)
   should be used instead.

- The standard library has a new implementation of `binary_search`
  which is significantly improves performance
  ([#128254](rust-lang/rust#128254)). However
  when a sorted slice has multiple values which compare equal, the
  new implementation may select a different value among the equal
  ones than the old implementation.

- [illumos/Solaris now sets `MSG_NOSIGNAL` when writing to
  sockets](rust-lang/rust#128259). This avoids
  killing the process with SIGPIPE when writing to a closed socket,
  which matches the existing behavior on other UNIX targets.

- [Removes a problematic hack that always passed the --whole-archive
  linker flag for tests, which may cause linker errors for code
  accidentally relying on it.]
  (rust-lang/rust#128400)

- The WebAssembly target features `multivalue` and `reference-types`
  are now both enabled by default. These two features both have
  subtle changes implied for generated WebAssembly binaries. For
  the `multivalue` feature, WebAssembly target support has changed
  when upgrading to LLVM 19. Support for generating functions with
  multiple returns no longer works and `-Ctarget-feature=+multivalue`
  has a different meaning than it did in LLVM 18 and prior. There
  is no longer any supported means to generate a module that has
  a function with multiple returns in WebAssembly from Rust source
  code. For the `reference-types` feature the encoding of immediates
  in the `call_indirect`, a commonly used instruction by the
  WebAssembly backend, has changed. Validators and parsers which
  don't understand the `reference-types` proposal will no longer
  accept modules produced by LLVM due to this change in encoding
  of immediates. Additionally these features being enabled are
  encoded in the `target_features` custom section and may affect
  downstream tooling such as `wasm-opt` consuming the module.
  Generating a WebAssembly module that disables default features
  requires `-Zbuild-std` support from Cargo and more information
  can be found at
  [rust-lang/rust#128511](rust-lang/rust#128511).
- [Rust now raises unsafety errors for union patterns in parameter-position]
  (rust-lang/rust#130531)

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.

- [Update to LLVM 19]
  (rust-lang/rust#127513)
antoyo pushed a commit to antoyo/rust that referenced this pull request Jan 13, 2025
…Amanieu

Stabilize `asm_const`

tracking issue: rust-lang#93332

reference PR: rust-lang/reference#1556

this will probably require some CI wrangling (and a rebase), so let's get that over with even though the final required PR is not merged yet.

r? `@ghost`
netbsd-srcmastr pushed a commit to NetBSD/pkgsrc that referenced this pull request Feb 2, 2025
Pkgsrc changes:
 * Adapt patches, apply to new vendored crates where needed.
 * Back-port rust pull request 130110, "make dist vendoring configurable"
 * Disable "dist vendoring", otherwise cargo would try to access
   the network during the build phase.
 * Dial down the verbosity of the build by dropping -v argument to x.py.

Upstream changes:

Version 1.82.0 (2024-10-17)
==========================

Language
--------
- [Don't make statement nonterminals match pattern nonterminals]
  (rust-lang/rust#120221)
- [Patterns matching empty types can now be omitted in common cases]
  (rust-lang/rust#122792)
- [Enforce supertrait outlives obligations when using trait impls]
  (rust-lang/rust#124336)
- [`addr_of(_mut)!` macros and the newly stabilized `&raw (const|mut)`
  are now safe to use with all static items]
  (rust-lang/rust#125834)
- [size_of_val_raw: for length 0 this is safe to call]
  (rust-lang/rust#126152)
- [Reorder trait bound modifiers *after* `for<...>` binder in trait bounds]
  (rust-lang/rust#127054)
- [Stabilize opaque type precise capturing (RFC 3617)]
  (rust-lang/rust#127672)
- [Stabilize `&raw const` and `&raw mut` operators (RFC 2582)]
  (rust-lang/rust#127679)
- [Stabilize unsafe extern blocks (RFC 3484)]
  (rust-lang/rust#127921)
- [Stabilize nested field access in `offset_of!`]
  (rust-lang/rust#128284)
- [Do not require `T` to be live when dropping `[T; 0]`]
  (rust-lang/rust#128438)
- [Stabilize `const` operands in inline assembly]
  (rust-lang/rust#128570)
- [Stabilize floating-point arithmetic in `const fn`]
  (rust-lang/rust#128596)
- [Stabilize explicit opt-in to unsafe attributes]
  (rust-lang/rust#128771)
- [Document NaN bit patterns guarantees]
  (rust-lang/rust#129559)

Compiler
--------
- [Promote riscv64gc-unknown-linux-musl to tier 2]
  (rust-lang/rust#122049)
- [Promote Mac Catalyst targets `aarch64-apple-ios-macabi` and
  `x86_64-apple-ios-macabi` to Tier 2, and ship them with rustup]
  (rust-lang/rust#126450)
- [Add tier 3 NuttX based targets for RISC-V and ARM]
  (rust-lang/rust#127755)
- [Add tier 3 powerpc-unknown-linux-muslspe target]
  (rust-lang/rust#127905)
- [Improved diagnostics to explain why a pattern is unreachable]
  (rust-lang/rust#128034)
- [The compiler now triggers the unreachable code warning properly
  for async functions that don't return/are `-> !`]
  (rust-lang/rust#128443)
- [Promote `aarch64-apple-darwin` to Tier 1]
  (rust-lang/rust#128592)
- [Add Trusty OS target `aarch64-unknown-trusty` and `armv7-unknown-trusty`
  as tier 3 targets] (rust-lang/rust#129490)
- [Promote `wasm32-wasip2` to Tier 2.]
  (rust-lang/rust#126967)

Libraries
---------
- [Generalize `{Rc,Arc}::make_mut()` to `Path`, `OsStr`, and `CStr`.]
  (rust-lang/rust#126877)

Stabilized APIs
---------------
- [`std::thread::Builder::spawn_unchecked`]
  (https://doc.rust-lang.org/stable/std/thread/struct.Builder.html#method.spawn_unchecked)
- [`std::str::CharIndices::offset`]
  (https://doc.rust-lang.org/nightly/std/str/struct.CharIndices.html#method.offset)
- [`std::option::Option::is_none_or`]
  (https://doc.rust-lang.org/nightly/std/option/enum.Option.html#method.is_none_or)
- [`[T]::is_sorted`]
  (https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.is_sorted)
- [`[T]::is_sorted_by`]
  (https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.is_sorted_by)
- [`[T]::is_sorted_by_key`]
  (https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.is_sorted_by_key)
- [`Iterator::is_sorted`]
  (https://doc.rust-lang.org/nightly/std/iter/trait.Iterator.html#method.is_sorted)
- [`Iterator::is_sorted_by`]
  (https://doc.rust-lang.org/nightly/std/iter/trait.Iterator.html#method.is_sorted_by)
- [`Iterator::is_sorted_by_key`]
  (https://doc.rust-lang.org/nightly/std/iter/trait.Iterator.html#method.is_sorted_by_key)
- [`std::future::Ready::into_inner`]
  (https://doc.rust-lang.org/nightly/std/future/struct.Ready.html#method.into_inner)
- [`std::iter::repeat_n`]
  (https://doc.rust-lang.org/nightly/std/iter/fn.repeat_n.html)
- [`impl<T: Clone> DoubleEndedIterator for Take<Repeat<T>>`]
  (https://doc.rust-lang.org/nightly/std/iter/struct.Take.html#impl-DoubleEndedIterator-for-Take%3CRepeat%3CT%3E%3E)
- [`impl<T: Clone> ExactSizeIterator for Take<Repeat<T>>`]
  (https://doc.rust-lang.org/nightly/std/iter/struct.Take.html#impl-ExactSizeIterator-for-Take%3CRepeat%3CT%3E%3E)
- [`impl<T: Clone> ExactSizeIterator for Take<RepeatWith<T>>`]
  (https://doc.rust-lang.org/nightly/std/iter/struct.Take.html#impl-ExactSizeIterator-for-Take%3CRepeatWith%3CF%3E%3E)
- [`impl Default for std::collections::binary_heap::Iter`]
  (https://doc.rust-lang.org/nightly/std/collections/binary_heap/struct.Iter.html#impl-Default-for-Iter%3C'_,+T%3E)
- [`impl Default for std::collections::btree_map::RangeMut`]
  (https://doc.rust-lang.org/nightly/std/collections/btree_map/struct.RangeMut.html#impl-Default-for-RangeMut%3C'_,+K,+V%3E)
- [`impl Default for std::collections::btree_map::ValuesMut`]
  (https://doc.rust-lang.org/nightly/std/collections/btree_map/struct.ValuesMut.html#impl-Default-for-ValuesMut%3C'_,+K,+V%3E)
- [`impl Default for std::collections::vec_deque::Iter`]
  (https://doc.rust-lang.org/nightly/std/collections/vec_deque/struct.Iter.html#impl-Default-for-Iter%3C'_,+T%3E)
- [`impl Default for std::collections::vec_deque::IterMut`]
  (https://doc.rust-lang.org/nightly/std/collections/vec_deque/struct.IterMut.html#impl-Default-for-IterMut%3C'_,+T%3E)
- [`Rc<T>::new_uninit`]
  (https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.new_uninit)
- [`Rc<T>::assume_init`]
  (https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.assume_init)
- [`Rc<[T]>::new_uninit_slice`]
  (https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.new_uninit_slice)
- [`Rc<[MaybeUninit<T>]>::assume_init`]
  (https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.assume_init-1)
- [`Arc<T>::new_uninit`]
  (https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.new_uninit)
- [`Arc<T>::assume_init`]
  (https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.assume_init)
- [`Arc<[T]>::new_uninit_slice`]
  (https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.new_uninit_slice)
- [`Arc<[MaybeUninit<T>]>::assume_init`]
  (https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.assume_init-1)
- [`Box<T>::new_uninit`]
  (https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.new_uninit)
- [`Box<T>::assume_init`]
  (https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.assume_init)
- [`Box<[T]>::new_uninit_slice`]
  (https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.new_uninit_slice)
- [`Box<[MaybeUninit<T>]>::assume_init`]
  (https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.assume_init-1)
- [`core::arch::x86_64::_bextri_u64`]
  (https://doc.rust-lang.org/stable/core/arch/x86_64/fn._bextri_u64.html)
- [`core::arch::x86_64::_bextri_u32`]
  (https://doc.rust-lang.org/stable/core/arch/x86_64/fn._bextri_u32.html)
- [`core::arch::x86::_mm_broadcastsi128_si256`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_broadcastsi128_si256.html)
- [`core::arch::x86::_mm256_stream_load_si256`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm256_stream_load_si256.html)
- [`core::arch::x86::_tzcnt_u16`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._tzcnt_u16.html)
- [`core::arch::x86::_mm_extracti_si64`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_extracti_si64.html)
- [`core::arch::x86::_mm_inserti_si64`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_inserti_si64.html)
- [`core::arch::x86::_mm_storeu_si16`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_storeu_si16.html)
- [`core::arch::x86::_mm_storeu_si32`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_storeu_si32.html)
- [`core::arch::x86::_mm_storeu_si64`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_storeu_si64.html)
- [`core::arch::x86::_mm_loadu_si16`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_loadu_si16.html)
- [`core::arch::x86::_mm_loadu_si32`]
  (https://doc.rust-lang.org/stable/core/arch/x86/fn._mm_loadu_si32.html)
- [`core::arch::wasm32::u8x16_relaxed_swizzle`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u8x16_relaxed_swizzle.html)
- [`core::arch::wasm32::i8x16_relaxed_swizzle`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i8x16_relaxed_swizzle.html)
- [`core::arch::wasm32::i32x4_relaxed_trunc_f32x4`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i32x4_relaxed_trunc_f32x4.html)
- [`core::arch::wasm32::u32x4_relaxed_trunc_f32x4`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u32x4_relaxed_trunc_f32x4.html)
- [`core::arch::wasm32::i32x4_relaxed_trunc_f64x2_zero`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i32x4_relaxed_trunc_f64x2_zero.html)
- [`core::arch::wasm32::u32x4_relaxed_trunc_f64x2_zero`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u32x4_relaxed_trunc_f64x2_zero.html)
- [`core::arch::wasm32::f32x4_relaxed_madd`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f32x4_relaxed_madd.html)
- [`core::arch::wasm32::f32x4_relaxed_nmadd`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f32x4_relaxed_nmadd.html)
- [`core::arch::wasm32::f64x2_relaxed_madd`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f64x2_relaxed_madd.html)
- [`core::arch::wasm32::f64x2_relaxed_nmadd`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f64x2_relaxed_nmadd.html)
- [`core::arch::wasm32::i8x16_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i8x16_relaxed_laneselect.html)
- [`core::arch::wasm32::u8x16_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u8x16_relaxed_laneselect.html)
- [`core::arch::wasm32::i16x8_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i16x8_relaxed_laneselect.html)
- [`core::arch::wasm32::u16x8_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u16x8_relaxed_laneselect.html)
- [`core::arch::wasm32::i32x4_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i32x4_relaxed_laneselect.html)
- [`core::arch::wasm32::u32x4_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u32x4_relaxed_laneselect.html)
- [`core::arch::wasm32::i64x2_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i64x2_relaxed_laneselect.html)
- [`core::arch::wasm32::u64x2_relaxed_laneselect`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u64x2_relaxed_laneselect.html)
- [`core::arch::wasm32::f32x4_relaxed_min`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f32x4_relaxed_min.html)
- [`core::arch::wasm32::f32x4_relaxed_max`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f32x4_relaxed_max.html)
- [`core::arch::wasm32::f64x2_relaxed_min`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f64x2_relaxed_min.html)
- [`core::arch::wasm32::f64x2_relaxed_max`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f64x2_relaxed_max.html)
- [`core::arch::wasm32::i16x8_relaxed_q15mulr`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i16x8_relaxed_q15mulr.html)
- [`core::arch::wasm32::u16x8_relaxed_q15mulr`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u16x8_relaxed_q15mulr.html)
- [`core::arch::wasm32::i16x8_relaxed_dot_i8x16_i7x16`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i16x8_relaxed_dot_i8x16_i7x16.html)
- [`core::arch::wasm32::u16x8_relaxed_dot_i8x16_i7x16`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u16x8_relaxed_dot_i8x16_i7x16.html)
- [`core::arch::wasm32::i32x4_relaxed_dot_i8x16_i7x16_add`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i32x4_relaxed_dot_i8x16_i7x16_add.html)
- [`core::arch::wasm32::u32x4_relaxed_dot_i8x16_i7x16_add`]
  (https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u32x4_relaxed_dot_i8x16_i7x16_add.html)

These APIs are now stable in const contexts:

- [`std::task::Waker::from_raw`]
  (https://doc.rust-lang.org/nightly/std/task/struct.Waker.html#method.from_raw)
- [`std::task::Waker::waker`]
  (https://doc.rust-lang.org/nightly/std/task/struct.Waker.html#method.from_raw)
- [`std::task::Context::from_waker`]
  (https://doc.rust-lang.org/nightly/std/task/struct.Context.html#method.from_waker)
- [`std::task::Context::waker`]
  (https://doc.rust-lang.org/nightly/std/task/struct.Context.html#method.waker)
- [`$integer::from_str_radix`]
  (https://doc.rust-lang.org/nightly/std/primitive.u32.html#method.from_str_radix)
- [`std::num::ParseIntError::kind`]
  (https://doc.rust-lang.org/nightly/std/num/struct.ParseIntError.html#method.kind)

Cargo
-----
- [feat: Add `info` cargo subcommand]
  (rust-lang/cargo#14141)

Compatibility Notes
-------------------
 - We now [disallow setting some built-in cfgs via the
   command-line](rust-lang/rust#126158) with
   the newly added
   [`explicit_builtin_cfgs_in_flags`]
   (https://doc.rust-lang.org/rustc/lints/listing/deny-by-default.html#explicit-builtin-cfgs-in-flags)
   lint in order to prevent incoherent state, eg. `windows` cfg active
   but target is Linux based. The appropriate [`rustc` flag]
   (https://doc.rust-lang.org/rustc/command-line-arguments.html)
   should be used instead.

- The standard library has a new implementation of `binary_search`
  which is significantly improves performance
  ([#128254](rust-lang/rust#128254)). However
  when a sorted slice has multiple values which compare equal, the
  new implementation may select a different value among the equal
  ones than the old implementation.

- [illumos/Solaris now sets `MSG_NOSIGNAL` when writing to
  sockets](rust-lang/rust#128259). This avoids
  killing the process with SIGPIPE when writing to a closed socket,
  which matches the existing behavior on other UNIX targets.

- [Removes a problematic hack that always passed the --whole-archive
  linker flag for tests, which may cause linker errors for code
  accidentally relying on it.]
  (rust-lang/rust#128400)

- The WebAssembly target features `multivalue` and `reference-types`
  are now both enabled by default. These two features both have
  subtle changes implied for generated WebAssembly binaries. For
  the `multivalue` feature, WebAssembly target support has changed
  when upgrading to LLVM 19. Support for generating functions with
  multiple returns no longer works and `-Ctarget-feature=+multivalue`
  has a different meaning than it did in LLVM 18 and prior. There
  is no longer any supported means to generate a module that has
  a function with multiple returns in WebAssembly from Rust source
  code. For the `reference-types` feature the encoding of immediates
  in the `call_indirect`, a commonly used instruction by the
  WebAssembly backend, has changed. Validators and parsers which
  don't understand the `reference-types` proposal will no longer
  accept modules produced by LLVM due to this change in encoding
  of immediates. Additionally these features being enabled are
  encoded in the `target_features` custom section and may affect
  downstream tooling such as `wasm-opt` consuming the module.
  Generating a WebAssembly module that disables default features
  requires `-Zbuild-std` support from Cargo and more information
  can be found at
  [rust-lang/rust#128511](rust-lang/rust#128511).
- [Rust now raises unsafety errors for union patterns in parameter-position]
  (rust-lang/rust#130531)

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.

- [Update to LLVM 19]
  (rust-lang/rust#127513)
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