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Rustup to rustc 1.61.0-nightly (4b043faba 2022-02-24)

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bjorn3 2022-02-25 11:29:57 +01:00
parent 471234f8aa
commit d565f60054
2 changed files with 217 additions and 5 deletions
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220
patches/0024-core-Disable-portable-simd-test.patch
View file

@ -7,18 +7,230 @@ Subject: [PATCH] [core] Disable portable-simd test
library/core/tests/lib.rs | 1 -
1 file changed, 1 deletion(-)
diff --git a/library/core/src/lib.rs b/library/core/src/lib.rs
index aa1ad93..95fbf55 100644
--- a/library/core/src/lib.rs
+++ b/library/core/src/lib.rs
@@ -398,25 +398,4 @@ pub mod arch {
}
}
-// Pull in the `core_simd` crate directly into libcore. The contents of
-// `core_simd` are in a different repository: rust-lang/portable-simd.
-//
-// `core_simd` depends on libcore, but the contents of this module are
-// set up in such a way that directly pulling it here works such that the
-// crate uses this crate as its libcore.
-#[path = "../../portable-simd/crates/core_simd/src/mod.rs"]
-#[allow(missing_debug_implementations, dead_code, unsafe_op_in_unsafe_fn, unused_unsafe)]
-#[allow(rustdoc::bare_urls)]
-#[unstable(feature = "portable_simd", issue = "86656")]
-#[cfg(not(all(miri, doctest)))] // Miri does not support all SIMD intrinsics
-mod core_simd;
-
-#[doc = include_str!("../../portable-simd/crates/core_simd/src/core_simd_docs.md")]
-#[unstable(feature = "portable_simd", issue = "86656")]
-#[cfg(not(all(miri, doctest)))] // Miri does not support all SIMD intrinsics
-pub mod simd {
- #[unstable(feature = "portable_simd", issue = "86656")]
- pub use crate::core_simd::simd::*;
-}
-
include!("primitive_docs.rs");
diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs
index cd38c3a..ad632dc 100644
--- a/library/core/src/slice/mod.rs
+++ b/library/core/src/slice/mod.rs
@@ -17,7 +17,6 @@ use crate::ptr;
use crate::result::Result;
use crate::result::Result::{Err, Ok};
#[cfg(not(miri))] // Miri does not support all SIMD intrinsics
-use crate::simd::{self, Simd};
use crate::slice;
#[unstable(
@@ -3475,123 +3474,6 @@ impl<T> [T] {
}
}
- /// Split a slice into a prefix, a middle of aligned SIMD types, and a suffix.
- ///
- /// This is a safe wrapper around [`slice::align_to`], so has the same weak
- /// postconditions as that method. You're only assured that
- /// `self.len() == prefix.len() + middle.len() * LANES + suffix.len()`.
- ///
- /// Notably, all of the following are possible:
- /// - `prefix.len() >= LANES`.
- /// - `middle.is_empty()` despite `self.len() >= 3 * LANES`.
- /// - `suffix.len() >= LANES`.
- ///
- /// That said, this is a safe method, so if you're only writing safe code,
- /// then this can at most cause incorrect logic, not unsoundness.
- ///
- /// # Panics
- ///
- /// This will panic if the size of the SIMD type is different from
- /// `LANES` times that of the scalar.
- ///
- /// At the time of writing, the trait restrictions on `Simd<T, LANES>` keeps
- /// that from ever happening, as only power-of-two numbers of lanes are
- /// supported. It's possible that, in the future, those restrictions might
- /// be lifted in a way that would make it possible to see panics from this
- /// method for something like `LANES == 3`.
- ///
- /// # Examples
- ///
- /// ```
- /// #![feature(portable_simd)]
- ///
- /// let short = &[1, 2, 3];
- /// let (prefix, middle, suffix) = short.as_simd::<4>();
- /// assert_eq!(middle, []); // Not enough elements for anything in the middle
- ///
- /// // They might be split in any possible way between prefix and suffix
- /// let it = prefix.iter().chain(suffix).copied();
- /// assert_eq!(it.collect::<Vec<_>>(), vec![1, 2, 3]);
- ///
- /// fn basic_simd_sum(x: &[f32]) -> f32 {
- /// use std::ops::Add;
- /// use std::simd::f32x4;
- /// let (prefix, middle, suffix) = x.as_simd();
- /// let sums = f32x4::from_array([
- /// prefix.iter().copied().sum(),
- /// 0.0,
- /// 0.0,
- /// suffix.iter().copied().sum(),
- /// ]);
- /// let sums = middle.iter().copied().fold(sums, f32x4::add);
- /// sums.horizontal_sum()
- /// }
- ///
- /// let numbers: Vec<f32> = (1..101).map(|x| x as _).collect();
- /// assert_eq!(basic_simd_sum(&numbers[1..99]), 4949.0);
- /// ```
- #[unstable(feature = "portable_simd", issue = "86656")]
- #[cfg(not(miri))] // Miri does not support all SIMD intrinsics
- pub fn as_simd<const LANES: usize>(&self) -> (&[T], &[Simd<T, LANES>], &[T])
- where
- Simd<T, LANES>: AsRef<[T; LANES]>,
- T: simd::SimdElement,
- simd::LaneCount<LANES>: simd::SupportedLaneCount,
- {
- // These are expected to always match, as vector types are laid out like
- // arrays per <https://llvm.org/docs/LangRef.html#vector-type>, but we
- // might as well double-check since it'll optimize away anyhow.
- assert_eq!(mem::size_of::<Simd<T, LANES>>(), mem::size_of::<[T; LANES]>());
-
- // SAFETY: The simd types have the same layout as arrays, just with
- // potentially-higher alignment, so the de-facto transmutes are sound.
- unsafe { self.align_to() }
- }
-
- /// Split a slice into a prefix, a middle of aligned SIMD types, and a suffix.
- ///
- /// This is a safe wrapper around [`slice::align_to_mut`], so has the same weak
- /// postconditions as that method. You're only assured that
- /// `self.len() == prefix.len() + middle.len() * LANES + suffix.len()`.
- ///
- /// Notably, all of the following are possible:
- /// - `prefix.len() >= LANES`.
- /// - `middle.is_empty()` despite `self.len() >= 3 * LANES`.
- /// - `suffix.len() >= LANES`.
- ///
- /// That said, this is a safe method, so if you're only writing safe code,
- /// then this can at most cause incorrect logic, not unsoundness.
- ///
- /// This is the mutable version of [`slice::as_simd`]; see that for examples.
- ///
- /// # Panics
- ///
- /// This will panic if the size of the SIMD type is different from
- /// `LANES` times that of the scalar.
- ///
- /// At the time of writing, the trait restrictions on `Simd<T, LANES>` keeps
- /// that from ever happening, as only power-of-two numbers of lanes are
- /// supported. It's possible that, in the future, those restrictions might
- /// be lifted in a way that would make it possible to see panics from this
- /// method for something like `LANES == 3`.
- #[unstable(feature = "portable_simd", issue = "86656")]
- #[cfg(not(miri))] // Miri does not support all SIMD intrinsics
- pub fn as_simd_mut<const LANES: usize>(&mut self) -> (&mut [T], &mut [Simd<T, LANES>], &mut [T])
- where
- Simd<T, LANES>: AsMut<[T; LANES]>,
- T: simd::SimdElement,
- simd::LaneCount<LANES>: simd::SupportedLaneCount,
- {
- // These are expected to always match, as vector types are laid out like
- // arrays per <https://llvm.org/docs/LangRef.html#vector-type>, but we
- // might as well double-check since it'll optimize away anyhow.
- assert_eq!(mem::size_of::<Simd<T, LANES>>(), mem::size_of::<[T; LANES]>());
-
- // SAFETY: The simd types have the same layout as arrays, just with
- // potentially-higher alignment, so the de-facto transmutes are sound.
- unsafe { self.align_to_mut() }
- }
-
/// Checks if the elements of this slice are sorted.
///
/// That is, for each element `a` and its following element `b`, `a <= b` must hold. If the
diff --git a/library/core/tests/lib.rs b/library/core/tests/lib.rs
index ec70034..7cd9e21 100644
index 06c7be0..359e2e7 100644
--- a/library/core/tests/lib.rs
+++ b/library/core/tests/lib.rs
@@ -121,7 +121,6 @@ mod pattern;
mod pin;
@@ -75,7 +75,6 @@
#![feature(never_type)]
#![feature(unwrap_infallible)]
#![feature(result_into_ok_or_err)]
-#![feature(portable_simd)]
#![feature(ptr_metadata)]
#![feature(once_cell)]
#![feature(option_result_contains)]
@@ -127,7 +126,6 @@ mod pin;
mod pin_macro;
mod ptr;
mod result;
-mod simd;
mod slice;
mod str;
mod str_lossy;
--
diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs
index 5dc586d..b6fc48f 100644
--- a/library/std/src/lib.rs
+++ b/library/std/src/lib.rs
@@ -312,7 +312,6 @@
#![feature(panic_can_unwind)]
#![feature(panic_unwind)]
#![feature(platform_intrinsics)]
-#![feature(portable_simd)]
#![feature(prelude_import)]
#![feature(ptr_as_uninit)]
#![feature(ptr_internals)]
@@ -508,25 +508,6 @@ pub mod time;
#[unstable(feature = "once_cell", issue = "74465")]
pub mod lazy;
-// Pull in `std_float` crate into libstd. The contents of
-// `std_float` are in a different repository: rust-lang/portable-simd.
-#[path = "../../portable-simd/crates/std_float/src/lib.rs"]
-#[allow(missing_debug_implementations, dead_code, unsafe_op_in_unsafe_fn, unused_unsafe)]
-#[allow(rustdoc::bare_urls)]
-#[unstable(feature = "portable_simd", issue = "86656")]
-#[cfg(not(all(miri, doctest)))] // Miri does not support all SIMD intrinsics
-mod std_float;
-
-#[cfg(not(all(miri, doctest)))] // Miri does not support all SIMD intrinsics
-#[doc = include_str!("../../portable-simd/crates/core_simd/src/core_simd_docs.md")]
-#[unstable(feature = "portable_simd", issue = "86656")]
-pub mod simd {
- #[doc(inline)]
- pub use crate::std_float::StdFloat;
- #[doc(inline)]
- pub use core::simd::*;
-}
-
#[stable(feature = "futures_api", since = "1.36.0")]
pub mod task {
//! Types and Traits for working with asynchronous tasks.
--
2.26.2.7.g19db9cfb68

2
rust-toolchain
View file

@ -1,3 +1,3 @@
[toolchain]
channel = "nightly-2022-01-30"
channel = "nightly-2022-02-25"
components = ["rust-src", "rustc-dev", "llvm-tools-preview"]