func IsARM64ADR(op obj.As) bool {
	switch op {
	case arm64.AADR, arm64.AADRP:
		return true
	}
	return false
}

// IsARM64CMP reports whether the op (as defined by an arm64.A* constant) is
// one of the comparison instructions that require special handling.
func IsARM64CMP(op obj.As) bool {
	switch op {
	case arm64.ACMN, arm64.ACMP, arm64.ATST,
		arm64.ACMNW, arm64.ACMPW, arm64.ATSTW,
		arm64.AFCMPS, arm64.AFCMPD,

				break
			}
			// Strange special cases.
			if arch.IsARMFloatCmp(op) {
				prog.From = a[0]
				prog.Reg = p.getRegister(prog, op, &a[1])
				break
			}
		} else if p.arch.Family == sys.ARM64 && arch.IsARM64CMP(op) {
			prog.From = a[0]
			prog.Reg = p.getRegister(prog, op, &a[1])
			break
		} else if p.arch.Family == sys.MIPS || p.arch.Family == sys.MIPS64 {
			if arch.IsMIPSCMP(op) || arch.IsMIPSMUL(op) {