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rust/library/stdarch/crates/core_arch
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Alex Crichton 1d92c1d8b2 Another round of wasm SIMD updates 
This round is dependant on
https://github.com/rust-lang/llvm-project/pull/101 landing first in
rust-lang/rust and won't pass CI until that does. That PR, however, will
also break wasm CI because it's changing how the wasm target works. My
goal here is to open this early to get it out there so that when that PR
lands in rust-lang/rust and CI breaks in stdarch then this can be merged
to make CI green again.

The changes here are mostly around the codegen for various intrinsics.
Some wasm-specific intrinsics have been removed in favor of more general
LLVM intrinsics, and other intrinsics have been removed in favor of
pattern-matching codegen.

The only new instruction supported as part of this chagne is
`v128.any_true`. This leaves only one instruction unsupported in LLVM
which is `i64x2.abs`. I think the codegen for the instruction is correct
in stdsimd, though, and LLVM just needs to update with a pattern-match
to actually emit the opcode. That'll happen in a future LLVM update.
2021-05-03 15:56:41 +01:00
..
src
Another round of wasm SIMD updates
2021-05-03 15:56:41 +01:00
tests
Fix some clippy lints (#937)
2020-11-02 00:53:39 +00:00
avx512bw.md
avx512bw (#1014)
2021-02-25 20:38:05 +00:00
avx512f.md
Avx512f avx512vl (#1010)
2021-02-23 01:33:16 +00:00
avx512vbmi2.md
Avx512f avx512vl (#1010)
2021-02-23 01:33:16 +00:00
build.rs
Update WebAssembly SIMD/Atomics (#1073)
2021-03-11 23:30:30 +00:00
Cargo.toml
Replace cfg(dox) with cfg(doc) (#920)
2020-09-29 23:57:19 +01:00
LICENSE-APACHE
Add README and licenses to core_arch
2019-01-22 18:49:24 +01:00
LICENSE-MIT
Add README and licenses to core_arch
2019-01-22 18:49:24 +01:00
README.md
Remove azure pipelines badges
2019-10-10 12:42:41 +02:00
rustfmt.toml
Replace rustfmt::skip custom inner attribute with rustfmt.toml
2019-10-26 18:46:22 +02:00

README.md

core::arch - Rust's core library architecture-specific intrinsics

core_arch_crate_badge core_arch_docs_badge

The core::arch module implements architecture-dependent intrinsics (e.g. SIMD).

Usage

core::arch is available as part of libcore and it is re-exported by libstd. Prefer using it via core::arch or std::arch than via this crate. Unstable features are often available in nightly Rust via the feature(stdsimd).

Using core::arch via this crate requires nightly Rust, and it can (and does) break often. The only cases in which you should consider using it via this crate are:

  • if you need to re-compile core::arch yourself, e.g., with particular target-features enabled that are not enabled for libcore/libstd. Note: if you need to re-compile it for a non-standard target, please prefer using xargo and re-compiling libcore/libstd as appropriate instead of using this crate.

  • using some features that might not be available even behind unstable Rust features. We try to keep these to a minimum. If you need to use some of these features, please open an issue so that we can expose them in nightly Rust and you can use them from there.

Documentation

License

core_arch is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0), with portions covered by various BSD-like licenses.

See LICENSE-APACHE, and LICENSE-MIT for details.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in core_arch by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.