diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-12 05:35:37 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-12 05:35:37 +0000 |
commit | a90a5cba08fdf6c0ceb95101c275108a152a3aed (patch) | |
tree | 532507288f3defd7f4dcf1af49698bcb76034855 /third_party/rust/any_all_workaround | |
parent | Adding debian version 126.0.1-1. (diff) | |
download | firefox-a90a5cba08fdf6c0ceb95101c275108a152a3aed.tar.xz firefox-a90a5cba08fdf6c0ceb95101c275108a152a3aed.zip |
Merging upstream version 127.0.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/any_all_workaround')
-rw-r--r-- | third_party/rust/any_all_workaround/.cargo-checksum.json | 1 | ||||
-rw-r--r-- | third_party/rust/any_all_workaround/Cargo.toml | 28 | ||||
-rw-r--r-- | third_party/rust/any_all_workaround/LICENSE-APACHE | 201 | ||||
-rw-r--r-- | third_party/rust/any_all_workaround/LICENSE-MIT | 25 | ||||
-rw-r--r-- | third_party/rust/any_all_workaround/LICENSE-MIT-QCMS | 21 | ||||
-rw-r--r-- | third_party/rust/any_all_workaround/README.md | 13 | ||||
-rw-r--r-- | third_party/rust/any_all_workaround/build.rs | 7 | ||||
-rw-r--r-- | third_party/rust/any_all_workaround/src/lib.rs | 110 |
8 files changed, 406 insertions, 0 deletions
diff --git a/third_party/rust/any_all_workaround/.cargo-checksum.json b/third_party/rust/any_all_workaround/.cargo-checksum.json new file mode 100644 index 0000000000..8d16e68a7e --- /dev/null +++ b/third_party/rust/any_all_workaround/.cargo-checksum.json @@ -0,0 +1 @@ +{"files":{"Cargo.toml":"f8c127449dc9432d404c21c99833e4617ab88a797445af249a7fe3c989985d6d","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"6485b8ed310d3f0340bf1ad1f47645069ce4069dcc6bb46c7d5c6faf41de1fdb","LICENSE-MIT-QCMS":"36d847ae882f6574ebc72f56a4f354e4f104fde4a584373496482e97d52d31bc","README.md":"4c617b8ced3a27b7edecf0e5e41ed451c04e88dab529e7a35fccc4e1551efbd7","build.rs":"56b29ab6da3e49075bfd0a7b690267c8016298bf0d332e2e68bbaf19decbbf71","src/lib.rs":"7118106690b9d25c5d0a3e2079feb83d76f1d434d0da36b9d0351806d27c850d"},"package":null}
\ No newline at end of file diff --git a/third_party/rust/any_all_workaround/Cargo.toml b/third_party/rust/any_all_workaround/Cargo.toml new file mode 100644 index 0000000000..4b03a35781 --- /dev/null +++ b/third_party/rust/any_all_workaround/Cargo.toml @@ -0,0 +1,28 @@ +# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO +# +# When uploading crates to the registry Cargo will automatically +# "normalize" Cargo.toml files for maximal compatibility +# with all versions of Cargo and also rewrite `path` dependencies +# to registry (e.g., crates.io) dependencies. +# +# If you are reading this file be aware that the original Cargo.toml +# will likely look very different (and much more reasonable). +# See Cargo.toml.orig for the original contents. + +[package] +edition = "2021" +name = "any_all_workaround" +version = "0.1.0" +authors = ["Henri Sivonen <hsivonen@hsivonen.fi>"] +description = "Workaround for bad LLVM codegen for boolean reductions on 32-bit ARM" +homepage = "https://docs.rs/any_all_workaround/" +documentation = "https://docs.rs/any_all_workaround/" +readme = "README.md" +license = "MIT OR Apache-2.0" +repository = "https://github.com/hsivonen/any_all_workaround" + +[dependencies] +cfg-if = "1.0" + +[build-dependencies] +version_check = "0.9" diff --git a/third_party/rust/any_all_workaround/LICENSE-APACHE b/third_party/rust/any_all_workaround/LICENSE-APACHE new file mode 100644 index 0000000000..16fe87b06e --- /dev/null +++ b/third_party/rust/any_all_workaround/LICENSE-APACHE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. 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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/third_party/rust/any_all_workaround/README.md b/third_party/rust/any_all_workaround/README.md new file mode 100644 index 0000000000..9f83ac3695 --- /dev/null +++ b/third_party/rust/any_all_workaround/README.md @@ -0,0 +1,13 @@ +# any_all_workaround + +This is a workaround for bad codegen ([Rust bug](https://github.com/rust-lang/portable-simd/issues/146), [LLVM bug](https://github.com/llvm/llvm-project/issues/50466)) for the `any()` and `all()` reductions for NEON-backed SIMD vectors on 32-bit ARM. On other platforms these delegate to `any()` and `all()` in `core::simd`. + +The plan is to abandon this crate once the LLVM bug is fixed or `core::simd` works around the LLVM bug. + +The code is forked from the [`packed_simd` crate](https://raw.githubusercontent.com/hsivonen/packed_simd/d938e39bee9bc5c222f5f2f2a0df9e53b5ce36ae/src/codegen/reductions/mask/arm.rs). + +This crate requires Nightly Rust as it depends on the `portable_simd` feature. + +# License + +`MIT OR Apache-2.0`, since that's how `packed_simd` is licensed. (The ARM intrinsics Rust version workaround is from qcms, see LICENSE-MIT-QCMS.) diff --git a/third_party/rust/any_all_workaround/build.rs b/third_party/rust/any_all_workaround/build.rs new file mode 100644 index 0000000000..6810a8828e --- /dev/null +++ b/third_party/rust/any_all_workaround/build.rs @@ -0,0 +1,7 @@ +extern crate version_check as rustc; + +fn main() { + if rustc::is_min_version("1.78.0").unwrap_or(false) { + println!("cargo:rustc-cfg=stdsimd_split"); + } +} diff --git a/third_party/rust/any_all_workaround/src/lib.rs b/third_party/rust/any_all_workaround/src/lib.rs new file mode 100644 index 0000000000..f0b8b13609 --- /dev/null +++ b/third_party/rust/any_all_workaround/src/lib.rs @@ -0,0 +1,110 @@ +// This code began as a fork of +// https://raw.githubusercontent.com/rust-lang/packed_simd/d938e39bee9bc5c222f5f2f2a0df9e53b5ce36ae/src/codegen/reductions/mask/arm.rs +// which didn't have a license header on the file, but Cargo.toml said "MIT OR Apache-2.0". +// See LICENSE-MIT and LICENSE-APACHE. + +#![no_std] +#![feature(portable_simd)] +#![cfg_attr( + all( + stdsimd_split, + target_arch = "arm", + target_endian = "little", + target_feature = "neon", + target_feature = "v7" + ), + feature(stdarch_arm_neon_intrinsics) +)] +#![cfg_attr( + all( + not(stdsimd_split), + target_arch = "arm", + target_endian = "little", + target_feature = "neon", + target_feature = "v7" + ), + feature(stdsimd) +)] + +use cfg_if::cfg_if; +use core::simd::mask16x8; +use core::simd::mask32x4; +use core::simd::mask8x16; + +cfg_if! { + if #[cfg(all(target_arch = "arm", target_endian = "little", target_feature = "neon", target_feature = "v7"))] { + use core::simd::mask8x8; + use core::simd::mask16x4; + use core::simd::mask32x2; + macro_rules! arm_128_v7_neon_impl { + ($all:ident, $any:ident, $id:ident, $half:ident, $vpmin:ident, $vpmax:ident) => { + #[inline] + pub fn $all(s: $id) -> bool { + use core::arch::arm::$vpmin; + use core::mem::transmute; + unsafe { + union U { + halves: ($half, $half), + vec: $id, + } + let halves = U { vec: s }.halves; + let h: $half = transmute($vpmin(transmute(halves.0), transmute(halves.1))); + h.all() + } + } + #[inline] + pub fn $any(s: $id) -> bool { + use core::arch::arm::$vpmax; + use core::mem::transmute; + unsafe { + union U { + halves: ($half, $half), + vec: $id, + } + let halves = U { vec: s }.halves; + let h: $half = transmute($vpmax(transmute(halves.0), transmute(halves.1))); + h.any() + } + } + } + } + } else { + macro_rules! arm_128_v7_neon_impl { + ($all:ident, $any:ident, $id:ident, $half:ident, $vpmin:ident, $vpmax:ident) => { + #[inline(always)] + pub fn $all(s: $id) -> bool { + s.all() + } + #[inline(always)] + pub fn $any(s: $id) -> bool { + s.any() + } + } + } + } +} + +arm_128_v7_neon_impl!( + all_mask8x16, + any_mask8x16, + mask8x16, + mask8x8, + vpmin_u8, + vpmax_u8 +); +arm_128_v7_neon_impl!( + all_mask16x8, + any_mask16x8, + mask16x8, + mask16x4, + vpmin_u16, + vpmax_u16 +); +arm_128_v7_neon_impl!( + all_mask32x4, + any_mask32x4, + mask32x4, + mask32x2, + vpmin_u32, + vpmax_u32 +); |