Deprecate atomic::spin_loop_hint in favour of hint::spin_loop #80966

KodrAus · 2021-01-13T04:42:17Z

We wanted to leave atomic::spin_loop_hint alone when stabilizing hint::spin_loop so folks had some time to migrate. This now deprecates atomic_spin_loop_hint.

rust-highfive · 2021-01-13T04:42:20Z

r? @m-ou-se

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rust-log-analyzer · 2021-01-13T04:57:42Z

The job mingw-check failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

configure: rust.channel         := nightly
configure: rust.debug-assertions := True
configure: llvm.assertions      := True
configure: dist.missing-tools   := True
configure: build.configure-args := ['--enable-sccache', '--disable-manage-submodu ...
configure: writing `config.toml` in current directory
configure: 
configure: run `python /checkout/x.py --help`
configure: 
---
skip untracked path cpu-usage.csv during rustfmt invocations
skip untracked path src/doc/book/ during rustfmt invocations
skip untracked path src/doc/rust-by-example/ during rustfmt invocations
skip untracked path src/llvm-project/ during rustfmt invocations
Diff in /checkout/library/std/src/sys/hermit/mutex.rs at line 1:
Running `"/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/rustfmt" "--config-path" "/checkout" "--edition" "2018" "--unstable-features" "--skip-children" "--check" "/checkout/library/std/src/sys/hermit/mutex.rs"` failed.
If you're running `tidy`, try again with `--bless`. Or, if you just want to format code, run `./x.py fmt` instead.
 use crate::cell::UnsafeCell;
 use crate::collections::VecDeque;
 use crate::ffi::c_void;
+use crate::hint;
 use crate::ops::{Deref, DerefMut, Drop};
 use crate::ptr;
-use crate::hint;
 use crate::sync::atomic::{AtomicUsize, Ordering};
 use crate::sys::hermit::abi;
failed to run: /checkout/obj/build/bootstrap/debug/bootstrap test --stage 2 src/tools/tidy
Build completed unsuccessfully in 0:00:19

m-ou-se · 2021-01-13T17:20:19Z

@bors r+

bors · 2021-01-13T17:20:20Z

📌 Commit d65cb6e has been approved by m-ou-se

…=m-ou-se Deprecate atomic::spin_loop_hint in favour of hint::spin_loop For rust-lang#55002 We wanted to leave `atomic::spin_loop_hint` alone when stabilizing `hint::spin_loop` so folks had some time to migrate. This now deprecates `atomic_spin_loop_hint`.

Rollup of 17 pull requests Successful merges: - rust-lang#79982 (Add missing methods to unix ExitStatusExt) - rust-lang#80017 (Suggest `_` and `..` if a pattern has too few fields) - rust-lang#80169 (Recommend panic::resume_unwind instead of panicking.) - rust-lang#80217 (Add a `std::io::read_to_string` function) - rust-lang#80444 (Add as_ref and as_mut methods for Bound) - rust-lang#80567 (Add Iterator::intersperse_with) - rust-lang#80829 (Get rid of `DepConstructor`) - rust-lang#80895 (Fix handling of malicious Readers in read_to_end) - rust-lang#80966 (Deprecate atomic::spin_loop_hint in favour of hint::spin_loop) - rust-lang#80969 (Use better ICE message when no MIR is available) - rust-lang#80972 (Remove unstable deprecated Vec::remove_item) - rust-lang#80973 (Update books) - rust-lang#80980 (Fixed incorrect doc comment) - rust-lang#80981 (Fix -Cpasses=list and llvm version print with -vV) - rust-lang#80985 (Fix stabilisation version of slice_strip) - rust-lang#80990 (llvm: Remove the unused context from CreateDebugLocation) - rust-lang#80991 (Fix formatting specifiers doc links) Failed merges: - rust-lang#80944 (Use Option::map_or instead of `.map(..).unwrap_or(..)`) r? `@ghost` `@rustbot` modify labels: rollup

647: Ignore deprecated warnings on spin_loop_hint r=taiki-e a=taiki-e `spin_loop_hint` is deprecated in 1.51. (rust-lang/rust#80966) However, the alternative (`hint::spin_loop`) requires Rust 1.49+, so ignore deprecated warnings for now. Co-authored-by: Taiki Endo <te316e89@gmail.com>

Update RELEASES.md A couple of things that were missing in the release notes: - `Div` and `Rem` by their `NonZero` variant is now implemented for all unsigned integers (rust-lang#79134) - Stabilization of `VecDeque::range` and `VecDeque::range_mut` (rust-lang#79022, stabilization version corrected to 1.51.0 rust-lang#80448) - Deprecation of `spin_loop_hint` (rust-lang#80966)

Pkgsrc changes: * Add support for the big-endian arm64 NetBSD target (aarch64_be). * On NetBSD/i386, use the i586 (pentium) bootstrap kit variant in preference to i686. * Adjust patches, re-compute line offsets, re-compute crate checksums. * Remove a patch which was either integrated upstream and/or no longer applies. * Bump bootstraps to 1.50.0. * Move conditionals until after bsd.prefs.mk so that they work... * Default to "dist" build target if cross-compiling, but allow also to override via rust.BUILD_TARGET. * Allow overriding MAKE_JOBS_SAFE via rust.MAKE_JOBS_SAFE if you want a different trade-off between occasional breakage and performance. * Adjust platform.mk according to work already done in wip/rust/ * Add a patch to optimize the install.sh script used to install binary bootstraps to not do so many forks; use case/esac and parameter expansion instead of grep, sed and cut. * Drop building documentation for the binary bootstrap kits. This will also impact the lang/rust-bin package. For full documentation, build or install lang/rust as a package. Upstream changes: Version 1.51.0 (2021-03-25) ============================ Language -------- - [You can now parameterize items such as functions, traits, and `struct`s by constant values in addition to by types and lifetimes.][79135] Also known as "const generics" E.g. you can now write the following. Note: Only values of primitive integers, `bool`, or `char` types are currently permitted. ```rust struct GenericArray<T, const LENGTH: usize> { inner: [T; LENGTH] } impl<T, const LENGTH: usize> GenericArray<T, LENGTH> { const fn last(&self) -> Option<&T> { if LENGTH == 0 { None } else { Some(&self.inner[LENGTH - 1]) } } } ``` Compiler -------- - [Added the `-Csplit-debuginfo` codegen option for macOS platforms.][79570] This option controls whether debug information is split across multiple files or packed into a single file. **Note** This option is unstable on other platforms. - [Added tier 3\* support for `aarch64_be-unknown-linux-gnu`, `aarch64-unknown-linux-gnu_ilp32`, and `aarch64_be-unknown-linux-gnu_ilp32` targets.][81455] - [Added tier 3 support for `i386-unknown-linux-gnu` and `i486-unknown-linux-gnu` targets.][80662] - [The `target-cpu=native` option will now detect individual features of CPUs.][80749] \* Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries --------- - [`Box::downcast` is now also implemented for any `dyn Any + Send + Sync` object.][80945] - [`str` now implements `AsMut<str>`.][80279] - [`u64` and `u128` now implement `From<char>`.][79502] - [`Error` is now implemented for `&T` where `T` implements `Error`.][75180] - [`Poll::{map_ok, map_err}` are now implemented for `Poll<Option<Result<T,E>>>`.][80968] - [`unsigned_abs` is now implemented for all signed integer types.][80959] - [`io::Empty` now implements `io::Seek`.][78044] - [`rc::Weak<T>` and `sync::Weak<T>`'s methods such as `as_ptr` are now implemented for `T: ?Sized` types.][80764] - [`Div` and `Rem` by their `NonZero` variant is now implemented for all unsigned integers.][79134] Stabilized APIs --------------- - [`Arc::decrement_strong_count`] - [`Arc::increment_strong_count`] - [`Once::call_once_force`] - [`Peekable::next_if_eq`] - [`Peekable::next_if`] - [`Seek::stream_position`] - [`array::IntoIter`] - [`panic::panic_any`] - [`ptr::addr_of!`] - [`ptr::addr_of_mut!`] - [`slice::fill_with`] - [`slice::split_inclusive_mut`] - [`slice::split_inclusive`] - [`slice::strip_prefix`] - [`slice::strip_suffix`] - [`str::split_inclusive`] - [`sync::OnceState`] - [`task::Wake`] - [`VecDeque::range`] - [`VecDeque::range_mut`] Cargo ----- - [Added the `split-debuginfo` profile option to control the -Csplit-debuginfo codegen option.][cargo/9112] - [Added the `resolver` field to `Cargo.toml` to enable the new feature resolver and CLI option behavior.][cargo/8997] Version 2 of the feature resolver will try to avoid unifying features of dependencies where that unification could be unwanted. Such as using the same dependency with a `std` feature in a build scripts and proc-macros, while using the `no-std` feature in the final binary. See the [Cargo book documentation][feature-resolver@2.0] for more information on the feature. Rustdoc ------- - [Rustdoc will now include documentation for methods available from _nested_ `Deref` traits.][80653] - [You can now provide a `--default-theme` flag which sets the default theme to use for documentation.][79642] Various improvements to intra-doc links: - [You can link to non-path primitives such as `slice`.][80181] - [You can link to associated items.][74489] - [You can now include generic parameters when linking to items, like `Vec<T>`.][76934] Misc ---- - [You can now pass `--include-ignored` to tests (e.g. with `cargo test -- --include-ignored`) to include testing tests marked `#[ignore]`.][80053] Compatibility Notes ------------------- - [WASI platforms no longer use the `wasm-bindgen` ABI, and instead use the wasm32 ABI.][79998] - [`rustc` no longer promotes division, modulo and indexing operations to `const` that could fail.][80579] - [The minimum version of glibc for the following platforms has been bumped to version 2.31 for the distributed artifacts.][81521] - `armv5te-unknown-linux-gnueabi` - `sparc64-unknown-linux-gnu` - `thumbv7neon-unknown-linux-gnueabihf` - `armv7-unknown-linux-gnueabi` - `x86_64-unknown-linux-gnux32` - [`atomic::spin_loop_hint` has been deprecated.][80966] It's recommended to use `hint::spin_loop` instead. Internal Only ------------- - [Consistently avoid constructing optimized MIR when not doing codegen][80718] [79135]: rust-lang/rust#79135 [74489]: rust-lang/rust#74489 [76934]: rust-lang/rust#76934 [79570]: rust-lang/rust#79570 [80181]: rust-lang/rust#80181 [79642]: rust-lang/rust#79642 [80945]: rust-lang/rust#80945 [80279]: rust-lang/rust#80279 [80053]: rust-lang/rust#80053 [79502]: rust-lang/rust#79502 [75180]: rust-lang/rust#75180 [79135]: rust-lang/rust#79135 [81521]: rust-lang/rust#81521 [80968]: rust-lang/rust#80968 [80959]: rust-lang/rust#80959 [80718]: rust-lang/rust#80718 [80653]: rust-lang/rust#80653 [80579]: rust-lang/rust#80579 [79998]: rust-lang/rust#79998 [78044]: rust-lang/rust#78044 [81455]: rust-lang/rust#81455 [80764]: rust-lang/rust#80764 [80749]: rust-lang/rust#80749 [80662]: rust-lang/rust#80662 [79134]: rust-lang/rust#79134 [80966]: rust-lang/rust#80966 [cargo/8997]: rust-lang/cargo#8997 [cargo/9112]: rust-lang/cargo#9112 [feature-resolver@2.0]: https://doc.rust-lang.org/nightly/cargo/reference/features.html#feature-resolver-version-2 [`Once::call_once_force`]: https://doc.rust-lang.org/stable/std/sync/struct.Once.html#method.call_once_force [`sync::OnceState`]: https://doc.rust-lang.org/stable/std/sync/struct.OnceState.html [`panic::panic_any`]: https://doc.rust-lang.org/stable/std/panic/fn.panic_any.html [`slice::strip_prefix`]: https://doc.rust-lang.org/stable/std/primitive.slice.html#method.strip_prefix [`slice::strip_suffix`]: https://doc.rust-lang.org/stable/std/primitive.slice.html#method.strip_prefix [`Arc::increment_strong_count`]: https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.increment_strong_count [`Arc::decrement_strong_count`]: https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.decrement_strong_count [`slice::fill_with`]: https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.fill_with [`ptr::addr_of!`]: https://doc.rust-lang.org/nightly/std/ptr/macro.addr_of.html [`ptr::addr_of_mut!`]: https://doc.rust-lang.org/nightly/std/ptr/macro.addr_of_mut.html [`array::IntoIter`]: https://doc.rust-lang.org/nightly/std/array/struct.IntoIter.html [`slice::split_inclusive`]: https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.split_inclusive [`slice::split_inclusive_mut`]: https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.split_inclusive_mut [`str::split_inclusive`]: https://doc.rust-lang.org/nightly/std/primitive.str.html#method.split_inclusive [`task::Wake`]: https://doc.rust-lang.org/nightly/std/task/trait.Wake.html [`Seek::stream_position`]: https://doc.rust-lang.org/nightly/std/io/trait.Seek.html#method.stream_position [`Peekable::next_if`]: https://doc.rust-lang.org/nightly/std/iter/struct.Peekable.html#method.next_if [`Peekable::next_if_eq`]: https://doc.rust-lang.org/nightly/std/iter/struct.Peekable.html#method.next_if_eq [`VecDeque::range`]: https://doc.rust-lang.org/nightly/std/collections/struct.VecDeque.html#method.range [`VecDeque::range_mut`]: https://doc.rust-lang.org/nightly/std/collections/struct.VecDeque.html#method.range_mut

rust-highfive assigned m-ou-se Jan 13, 2021

rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jan 13, 2021

deprecate atomic::spin_loop_hint in favour of hint::spin_loop

d65cb6e

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 Jan 13, 2021

JohnTitor mentioned this pull request Jan 14, 2021

Rollup of 14 pull requests #80994

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JohnTitor mentioned this pull request Jan 14, 2021

Rollup of 14 pull requests #80999

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JohnTitor mentioned this pull request Jan 14, 2021

Rollup of 15 pull requests #81002

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This was referenced Jan 14, 2021

Rollup of 19 pull requests #81013

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Rollup of 17 pull requests #81018

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bors merged commit 7855a73 into rust-lang:master Jan 14, 2021

rustbot added this to the 1.51.0 milestone Jan 14, 2021

taiki-e mentioned this pull request Jan 15, 2021

Ignore deprecated warnings on spin_loop_hint crossbeam-rs/crossbeam#647

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CDirkx mentioned this pull request Mar 24, 2021

Update RELEASES.md #83438

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Deprecate atomic::spin_loop_hint in favour of hint::spin_loop #80966

Deprecate atomic::spin_loop_hint in favour of hint::spin_loop #80966

KodrAus commented Jan 13, 2021

rust-highfive commented Jan 13, 2021

rust-log-analyzer commented Jan 13, 2021

m-ou-se commented Jan 13, 2021

bors commented Jan 13, 2021

Deprecate atomic::spin_loop_hint in favour of hint::spin_loop #80966

Deprecate atomic::spin_loop_hint in favour of hint::spin_loop #80966

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KodrAus commented Jan 13, 2021

rust-highfive commented Jan 13, 2021

rust-log-analyzer commented Jan 13, 2021

m-ou-se commented Jan 13, 2021

bors commented Jan 13, 2021