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-rw-r--r--crates/core_simd/src/vector.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/crates/core_simd/src/vector.rs b/crates/core_simd/src/vector.rs
index fac11d66e1b..6518927db61 100644
--- a/crates/core_simd/src/vector.rs
+++ b/crates/core_simd/src/vector.rs
@@ -144,6 +144,7 @@ where
     /// assert_eq!(v.as_array(), &[8, 8, 8, 8]);
     /// ```
     #[inline]
+    #[rustc_const_unstable(feature = "portable_simd", issue = "86656")]
     pub const fn splat(value: T) -> Self {
         const fn splat_const<T, const N: usize>(value: T) -> Simd<T, N>
         where