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| -rw-r--r-- | crates/core_simd/src/permute.rs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/crates/core_simd/src/permute.rs b/crates/core_simd/src/permute.rs index dd63c69c63d..a64fdbc9dd0 100644 --- a/crates/core_simd/src/permute.rs +++ b/crates/core_simd/src/permute.rs @@ -9,6 +9,15 @@ macro_rules! impl_shuffle_lane { /// Some SIMD shuffle instructions can be quite slow, so avoiding them by loading data /// into the desired patterns in advance is preferred, but shuffles are still faster /// than storing and reloading from memory. + /// + /// ``` + /// # use core_simd::*; + // let a = f32x4::from_array([1.0, 2.0, 3.0, 4.0]); + // let b = f32x4::from_array([5.0, 6.0, 7.0, 8.0]); + // const IDXS: [u32; 4] = [4,0,3,7]; + // let c = f32x4::shuffle::<IDXS>(a,b); + // assert_eq!(f32x4::from_array([5.0, 1.0, 4.0, 8.0]), c); + /// ``` #[inline] pub fn shuffle<const IDX: [u32; $n]>(self, second: Self) -> Self { unsafe { crate::intrinsics::$fn(self, second, IDX) } |