Availability Analysis

Hi there,

     Suppose I have my runOnFunction like this -

bool runOnFunction(Function &F) {

      bool change=false;
      myHelpingFunction1();
      myHelpingFunction2();

      myHelpingFunction3();
      myHelpingFunction4();
      return change;
}

Now I want to do availability analysis in between 'myHelpingFunction2'
and 'myHelpingFunction3'. So how to do that? and where will I find
the analysis results?

regards,
Chayan