IRULE for redirect request (http to https), append request and rewrite response (http to https)

give this a shot:

ltm policy http.redirects {
    controls { forwarding }
    requires { http }
    rules {
        redirect_rules {
            actions {
                0 {
                    http-reply
                    redirect
                    location https://www.abc.com/test/login.aspx
                }
            }
            conditions {
                0 {
                    http-host
                    host
                    values { www.abc.com }
                }
                1 {
                    http-uri
                    values { / }
                }
            }
            ordinal 1
        }
    }
    strategy all-match
}