func test(index: Int) -> Int {
    var array = Array(0..<1024)
    return array[index & 1023]
}

output.test(index: Swift.Int) -> Swift.Int:
        push    rbp
        mov     rbp, rsp
        push    rbx
        push    rax
        mov     rbx, rdi
        mov     esi, 1024
        xor     edi, edi
        call    (generic specialization <Swift.Range<Swift.Int>> of Swift._copyCollectionToContiguousArray<A where A: Swift.Collection>(A) -> Swift.ContiguousArray<A.Element>)
        and     ebx, 1023
        cmp     rbx, qword ptr [rax + 16]
        jae     .LBB1_2
        mov     rbx, qword ptr [rax + 8*rbx + 32]
        mov     rdi, rax
        call    swift_release@PLT
        mov     rax, rbx
        add     rsp, 8
        pop     rbx
        pop     rbp
        ret
.LBB1_2:
        ud2