// s390x:"RISBGZ\t[$]48, [$]15, [$]0,"
	return x & 0xffff00000000ffff
}

func issue44228a(a []int64, i int) bool {
	// amd64: "BTQ", -"SHL"
	return a[i>>6]&(1<<(i&63)) != 0
}
func issue44228b(a []int32, i int) bool {
	// amd64: "BTL", -"SHL"
	return a[i>>5]&(1<<(i&31)) != 0
}

func issue48467(x, y uint64) uint64 {
	// arm64: -"NEG"
	d, borrow := bits.Sub64(x, y, 0)
	return x - d&(-borrow)