/// <summary>
/// Computes intraprocedural liveness of the program <paramref name="p"/>,
/// storing the results in <paramref name="procFlow"/>.
/// </summary>
/// <param name="p"></param>
/// <param name="procFlow"></param>
/// <returns></returns>
public static RegisterLiveness Compute(
Program p,
ProgramDataFlow procFlow,
DecompilerEventListener eventListener)
{
var live = new RegisterLiveness(p, procFlow, eventListener);
Debug.WriteLineIf(trace.TraceError, "** Computing ByPass ****");
live.CurrentState = new ByPassState(p.Architecture);
live.ProcessWorklist();
if (eventListener.IsCanceled())
{
return(live);
}
Debug.WriteLineIf(trace.TraceError, "** Computing MayUse ****");
live.CurrentState = new MayUseState();
if (trace.TraceInfo)
{
live.Dump();
}
live.ProcessWorklist();
if (eventListener.IsCanceled())
{
return(live);
}
//$REVIEW: since we never use the liveinstate, can we get rid of the following
// four statements?
Debug.WriteLineIf(trace.TraceError, "** Computing LiveIn ****");
live.CurrentState = new LiveInState();
if (trace.TraceInfo)
{
live.Dump();
}
live.ProcessWorklist();
if (eventListener.IsCanceled())
{
return(live);
}
live.CompleteWork();
if (trace.TraceInfo)
{
live.Dump();
}
return(live);
}
