Add Copy bound to SIMD traits

crates/core_simd/src/elements/float.rs

@@ -5,7 +5,7 @@
 };
 
 /// Operations on SIMD vectors of floats.
-pub trait SimdFloat: Sized + Sealed {
+pub trait SimdFloat: Copy + Sealed {
     /// Mask type used for manipulating this SIMD vector type.
     type Mask;
 

crates/core_simd/src/elements/int.rs

@@ -4,7 +4,7 @@
 };
 
 /// Operations on SIMD vectors of signed integers.
-pub trait SimdInt: Sized + Sealed {
+pub trait SimdInt: Copy + Sealed {
     /// Mask type used for manipulating this SIMD vector type.
     type Mask;
 

crates/core_simd/src/elements/uint.rs

@@ -2,7 +2,7 @@
 use crate::simd::{intrinsics, LaneCount, Simd, SupportedLaneCount};
 
 /// Operations on SIMD vectors of unsigned integers.
-pub trait SimdUint: Sized + Sealed {
+pub trait SimdUint: Copy + Sealed {
     /// Scalar type contained by this SIMD vector type.
     type Scalar;