init(lowHalf:highHalf:)
A vector formed by concatenating lowHalf and highHalf.
Declaration
init(lowHalf: SIMD32<Int32>, highHalf: SIMD32<Int32>)Discussion
Equivalent to:
var result = SIMD64<Int32>()
for i in 0..<32 {
result[i] = lowHalf[i]
result[32+i] = highHalf[i]
}