diff options
| -rw-r--r-- | crates/core_simd/src/vector.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/crates/core_simd/src/vector.rs b/crates/core_simd/src/vector.rs index 893eff674ff..7c5ec2bc314 100644 --- a/crates/core_simd/src/vector.rs +++ b/crates/core_simd/src/vector.rs @@ -57,6 +57,24 @@ where self.0 } + /// Converts a slice to a SIMD vector containing `slice[..LANES]` + /// # Panics + /// `from_slice` will panic if the slice's `len` is less than the vector's `Simd::LANES`. + #[must_use] + pub const fn from_slice(slice: &[T]) -> Self { + assert!( + slice.len() >= LANES, + "slice length must be at least the number of lanes" + ); + let mut array = [slice[0]; LANES]; + let mut i = 0; + while i < LANES { + array[i] = slice[i]; + i += 1; + } + Self(array) + } + /// Reads from potentially discontiguous indices in `slice` to construct a SIMD vector. /// If an index is out-of-bounds, the lane is instead selected from the `or` vector. /// |