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wasm64: std fails to build with target-feature=+atomics #126778
Description
I tried to build an example project for wasm64-unknown-unknown with target-feature=+atomics, but the std failed to build due to
wasm32 arch.
I could get std to build by adding #![feature(simd_wasm64)] to https://github.com/rust-lang/rust/blob/master/library/std/src/lib.rs, and a few cfg checks to import the correct module.
I could work on a PR if that's the right approach.
Meta
rustc --version --verbose:
rustc 1.81.0-nightly (d7f6ebace 2024-06-16)
binary: rustc
commit-hash: d7f6ebacee13b6c03623c4b74197280454ede8de
commit-date: 2024-06-16
host: aarch64-apple-darwin
release: 1.81.0-nightly
LLVM version: 18.1.7
Activity
wooden-worm commentedon Jun 21, 2024
There's another similar problem with building for
wasm64usingtarget-feature=+simd128:portable-simdonly supportswasm32rust/library/portable-simd/crates/core_simd/src/swizzle_dyn.rs
Line 31 in 4e6de37
workingjubilee commentedon Jun 21, 2024
that sounds about right as a fix. feel free to PR it!
Auto merge of rust-lang#126792 - wooden-worm:master, r=Mark-Simulacrum
Rollup merge of rust-lang#126792 - wooden-worm:master, r=Mark-Simulacrum
Unrolled build for rust-lang#126792
Rollup merge of #126792 - wooden-worm:master, r=Mark-Simulacrum
Rollup merge of #126792 - wooden-worm:master, r=Mark-Simulacrum