1 When profiling my code with -auto-all, my .prof file names some sub-expressions with a backslash. Cf. below. What are these? 

     e_step
      e_step.ewords
      e_step.\
       e_step.\.\ 
        e_step.update_counts
      e_step.fwords

My e_step function binds seven expressions inside a let, then uses them in two ugly nested folds. (Yes, very hackish)  As you can see, three such expressions are named explicitly (ewords, fwords, and update_counts). But where are the rest? Further, perhaps the backslashes have something to do with the lambda expressions I am using in the two nested folds?

2. A related question: I tried using the SCC pragma instead of auto-all. I added it to all seven expressions inside the let, and to the nested folds. However, only two showed up in the .prof file! How come?

Thanks
ninestraycats