Auto merge of rust-lang#117468 - daxpedda:wasm-relaxed-simd, r=wesley…

…wiser Stabilize Wasm relaxed SIMD This PR stabilizes [Wasm relaxed SIMD](https://github.com/WebAssembly/relaxed-simd) which has already reached [phase 4](https://github.com/WebAssembly/proposals/tree/04fa8c810e1dc99ab399e41052a6e427ee988180?tab=readme-ov-file#phase-4---standardize-the-feature-wg). Tracking issue: rust-lang#111196 Implementation PR: rust-lang/stdarch#1393 Documentation: rust-lang/reference#1421 Stdarch: rust-lang/stdarch#1494 Closes rust-lang#111196.
rust-lang-ci · Jul 11, 2024 · d0fd12f · d0fd12f
2 parents 3ad5f45 + c3ad11d
commit d0fd12f
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Showing 3 changed files with 11 additions and 2 deletions.
diff --git a/compiler/rustc_target/src/target_features.rs b/compiler/rustc_target/src/target_features.rs
@@ -322,7 +322,7 @@ const WASM_ALLOWED_FEATURES: &[(&str, Stability)] = &[
     ("mutable-globals", Stable),
     ("nontrapping-fptoint", Stable),
     ("reference-types", Unstable(sym::wasm_target_feature)),
-    ("relaxed-simd", Unstable(sym::wasm_target_feature)),
+    ("relaxed-simd", Stable),
     ("sign-ext", Stable),
     ("simd128", Stable),
     // tidy-alphabetical-end

diff --git a/library/stdarch b/library/stdarch
diff --git a/tests/ui/target-feature/wasm-relaxed-simd.rs b/tests/ui/target-feature/wasm-relaxed-simd.rs
@@ -0,0 +1,9 @@
+//@ only-wasm32-wasip1
+//@ compile-flags: -Ctarget-feature=+relaxed-simd --crate-type=lib
+//@ build-pass
+
+use std::arch::wasm32::*;
+
+pub fn test(a: v128, b: v128, m: v128) -> v128 {
+    i64x2_relaxed_laneselect(a, b, m)
+}