Questions !!

[Tanu_Sharma]

Thanks for the reply,

Actually I m aiming towards determining two values:

• number of basic blocks in a program
  For this I have used Statistic facility provided in llvm and increasing the counter for each basic block for each function.but for some reason , I m getting different number everytime !!
  Is Statistic is the right way to do it ?

• Average basic block size in a program ( in bytes)

Any suggestions to make it simple and get an accurate result?

Regards,
Tanu

[clattner]

That should work fine. Remember that statistics accumulate across the whole execution of the tool though, they are not reset per function. Also, you might want to check out the -instcount pass. It prints BB counts among other things.

For a small .ll file, it prints:

$ llvm-as < t.ll | analyze -instcount -stats
Printing analysis 'Counts the various types of Instructions' for function 'test':