A stable, safe implementation of "Struct Target Features"

.clippy.toml

@@ -8,3 +8,5 @@
 trivial-copy-size-limit = 16
 
 # END LINEBENDER LINT SET
+
+doc-valid-idents = ["ShangMi", ".."]

.github/workflows/ci.yml

@@ -3,15 +3,15 @@ env:
   # version like 1.70. Note that we only specify MAJOR.MINOR and not PATCH so that bugfixes still
   # come automatically. If the version specified here is no longer the latest stable version,
   # then please feel free to submit a PR that adjusts it along with the potential clippy fixes.
-  RUST_STABLE_VER: "1.88" # In quotes because otherwise (e.g.) 1.70 would be interpreted as 1.7
+  RUST_STABLE_VER: "1.90" # In quotes because otherwise (e.g.) 1.70 would be interpreted as 1.7
   # The purpose of checking with the minimum supported Rust toolchain is to detect its staleness.
   # If the compilation fails, then the version specified here needs to be bumped up to reality.
   # Be sure to also update the rust-version property in the workspace Cargo.toml file,
   # plus all the README.md files of the affected packages.
-  RUST_MIN_VER: "1.88"
+  RUST_MIN_VER: "1.89"
   # List of packages that will be checked with the minimum supported Rust version.
   # This should be limited to packages that are intended for publishing.
-  RUST_MIN_VER_PKGS: "-p fearless_simd"
+  RUST_MIN_VER_PKGS: "-p fearless_simd -p fearless_simd_core"
   # List of features that depend on the standard library and will be excluded from no_std checks.
   FEATURES_DEPENDING_ON_STD: "std,default"
   # List of packages that can not target Wasm.
@@ -192,6 +192,13 @@ jobs:
       - name: run code generator
         run: cargo run --bin fearless_simd_gen
 
+      - name: run core code generator
+        run: cargo run --bin fearless_simd_core_gen
+
+      - name: Reformat (Fearless SIMD Core)
+        # The code generator for Fearless SIMD Core does not do this. 
+        run: cargo fmt -p fearless_simd_core
+
       - name: check for uncommitted changes
         run: git diff --exit-code
 

CHANGELOG.md

@@ -13,7 +13,7 @@ You can find its changes [documented below](#030-2025-10-14).
 
 ## [Unreleased]
 
-This release has an [MSRV][] of 1.88.
+This release has an [MSRV][] of 1.89.
 
 ### Changed
 

Cargo.toml

@@ -2,6 +2,8 @@
 resolver = "2"
 members = [
   "fearless_simd",
+  "fearless_simd_core",
+  "fearless_simd_core/gen",
   "fearless_simd_dev_macros",
   "fearless_simd_gen",
   "fearless_simd_tests",
@@ -13,7 +15,8 @@ license = "Apache-2.0 OR MIT"
 repository = "https://github.com/linebender/fearless_simd"
 # Keep in sync with RUST_MIN_VER in .github/workflows/ci.yml, with the relevant README.md files
 # and with the MSRV in the `Unreleased` section of CHANGELOG.md.
-rust-version = "1.88"
+# When increasing past 1.91, also uncomment the `discontinued::tbm` and `sse::sse4a` modules/imports in Fearless SIMD Core.
+rust-version = "1.89"
 
 [workspace.lints]
 

README.md

@@ -59,7 +59,7 @@ It benefited from conversations with Luca Versari, though he is not responsible
 
 ## Minimum supported Rust Version (MSRV)
 
-This version of Fearless SIMD has been verified to compile with **Rust 1.88** and later.
+This version of Fearless SIMD has been verified to compile with **Rust 1.89** and later.
 
 Future versions of Fearless SIMD might increase the Rust version requirement.
 It will not be treated as a breaking change and as such can even happen with small patch releases.

fearless_simd/README.md

@@ -125,7 +125,7 @@ At least one of `std` and `libm` is required; `std` overrides `libm`.
 
 ## Minimum supported Rust Version (MSRV)
 
-This version of Fearless SIMD has been verified to compile with **Rust 1.88** and later.
+This version of Fearless SIMD has been verified to compile with **Rust 1.89** and later.
 
 Future versions of Fearless SIMD might increase the Rust version requirement.
 It will not be treated as a breaking change and as such can even happen with small patch releases.

fearless_simd_core/Cargo.toml

@@ -0,0 +1,20 @@
+[package]
+name = "fearless_simd_core"
+version = "0.3.0"
+description = "Safely run custom #[target_feature] functions"
+keywords = ["simd", "target_feature"]
+categories = ["hardware-support"]
+edition.workspace = true
+license.workspace = true
+repository.workspace = true
+rust-version.workspace = true
+
+[dev-dependencies]
+bytemuck = { version = "1.24.0", features = ["must_cast"] }
+
+[lints]
+workspace = true
+
+[features]
+default = ["std"]
+std = []

fearless_simd_core/LICENSE-APACHE

@@ -0,0 +1,176 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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+   END OF TERMS AND CONDITIONS

fearless_simd_core/LICENSE-MIT

@@ -0,0 +1,25 @@
+Copyright (c) 2018 Raph Levien
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. 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.