[abc] cflow call graph timings

I've split out the cflow timings into encoding the call graph in bdds
and actually doing the analysis and changing advice lists. Here's the
breakdown. All times are in ms.

Notice that: 1) encoding the CG is the bulk of the time 2) analysis
itself is quite quick, except in sablecc 3) bigger CG (CHA) takes longer
to encode 4) analysis takes a bit longer on bigger CG

Analysis/advice lists:
                PTA CHA
ConaSim 395 668
sablecc 90138 101137
ants 207 128
conastack 152 174
figure 73 100
quicksort 67 95
lodsim 576 1293
weka 1917 2153

Encoding CG in BDDs:
                PTA CHA
ConaSim 19919 47418
sablecc 155913 211815
ants 24970 61446
conastack 19315 57910
figure 17395 44657
quicksort 19222 45051
lodsim 27903 148714
weka 82384 207530
Received on Fri Apr 15 21:58:57 2005