init(lowHalf:highHalf:)
A vector formed by concatenating lowHalf and highHalf.
Declaration
init(lowHalf: SIMD2<UInt8>, highHalf: SIMD2<UInt8>)Discussion
Equivalent to:
var result = SIMD4<UInt8>()
for i in 0..<2 {
result[i] = lowHalf[i]
result[2+i] = highHalf[i]
}