std: Stabilize wasm simd intrinsics #86204
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r? @Amanieu |
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@bors r+ rollup=never |
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This commit performs two changes to stabilize Rust support for WebAssembly simd intrinsics: * The stdarch submodule is updated to pull in rust-lang/stdarch#1179. * The `wasm_target_feature` feature gate requirement for the `simd128` feature has been removed, stabilizing the name `simd128`. This should conclude the FCP started on rust-lang#74372 and... Closes rust-lang#74372
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@alexcrichton Would you be willing to post a PR to update the documentation for this? I think it would go here as a new table for wasm. And if I'm reading this right, it would just need one entry for |
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Certainly! |
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Also document the `simd128` feature stabilized in rust-lang/rust#86204
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This commit adds simd acceleration support to the `memmem` module. This is added with the freshly-stabilized support from rust-lang/rust#86204. This mostly just cribs off the generic simd support for 128-bit types built for sse, copying bits and pieces of code here and there. Some refactoring happened internally to help reduce duplication where possible. I ran some initial benchmarks with the `memmem/krate/*` regex and a hacked up single-threaded version of criterion. Some [initial comparisons][compare] using Wasmtime as a runtime do indeed show a lot of improvements, but there are indeed some slowdowns as well. [compare]: https://gist.github.com/alexcrichton/6a72e682e7b6d505ade605359fbe3f2d
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This commit adds simd acceleration support to the `memmem` module. This is added with the freshly-stabilized support from rust-lang/rust#86204. This mostly just cribs off the generic simd support for 128-bit types built for sse, copying bits and pieces of code here and there. Some refactoring happened internally to help reduce duplication where possible. I ran some initial benchmarks with the `memmem/krate/*` regex and a hacked up single-threaded version of criterion. Some [initial comparisons][compare] using Wasmtime as a runtime do indeed show a lot of improvements, but there are indeed some slowdowns as well. [compare]: https://gist.github.com/alexcrichton/6a72e682e7b6d505ade605359fbe3f2d
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This commit adds simd acceleration support to the `memmem` module. This is added with the freshly-stabilized support from rust-lang/rust#86204. This mostly just cribs off the generic simd support for 128-bit types built for sse, copying bits and pieces of code here and there. Some refactoring happened internally to help reduce duplication where possible. I ran some initial benchmarks with the `memmem/krate/*` regex and a hacked up single-threaded version of criterion. Some [initial comparisons][compare] using Wasmtime as a runtime do indeed show a lot of improvements, but there are indeed some slowdowns as well. [compare]: https://gist.github.com/alexcrichton/6a72e682e7b6d505ade605359fbe3f2d
alexcrichton
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This commit adds simd acceleration support to the `memmem` module. This is added with the freshly-stabilized support from rust-lang/rust#86204. This mostly just cribs off the generic simd support for 128-bit types built for sse, copying bits and pieces of code here and there. Some refactoring happened internally to help reduce duplication where possible. I ran some initial benchmarks with the `memmem/krate/*` regex and a hacked up single-threaded version of criterion. Some [initial comparisons][compare] using Wasmtime as a runtime do indeed show a lot of improvements, but there are indeed some slowdowns as well. [compare]: https://gist.github.com/alexcrichton/6a72e682e7b6d505ade605359fbe3f2d
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This commit adds simd acceleration support to the `memmem` module. This is added with the freshly-stabilized support from rust-lang/rust#86204. This mostly just cribs off the generic simd support for 128-bit types built for sse, copying bits and pieces of code here and there. Some refactoring happened internally to help reduce duplication where possible. I ran some initial benchmarks with the `memmem/krate/*` regex and a hacked up single-threaded version of criterion. Some [initial comparisons][compare] using Wasmtime as a runtime do indeed show a lot of improvements, but there are indeed some slowdowns as well. [compare]: https://gist.github.com/alexcrichton/6a72e682e7b6d505ade605359fbe3f2d PR #84
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This commit performs two changes to stabilize Rust support for
WebAssembly simd intrinsics:
wasm_target_featurefeature gate requirement for thesimd128feature has been removed, stabilizing the name
simd128.This should conclude the FCP started on #74372 and...
Closes #74372