Basic Techniques Basic Approaches A simple way to perform data-flow analysis of programs is to set up data-flow equations for each node of the control flow graph and solve them by repeatedly calculating the output from the input locally at each node until the whole system stabilizes,i.e.,it reaches a fixpoint. The above general approach was developed by Gary Kildall while teaching at the Naval Postgraduate School 9Basic Techniques  Basic Approaches  A simple way to perform data-flow analysis of programs is to set up data-flow equations for each node of the control flow graph and solve them by repeatedly calculating the output from the input locally at each node until the whole system stabilizes, i.e., it reaches a fixpoint.  The above general approach was developed by Gary Kildall while teaching at the Naval Postgraduate School 9