llvm dev - May 2011 - [LLVMdev] Running both Function and Loop passes together

Hi

I want to write a LLVM pass that transforms loops only if they belong to
certain special functions.
Right now I have a pass that can transform loops as I intend, but I do not
know how to check if the loop is actually contained in one of the  special
functions.
Is there a way to identify the function to which a particular loop belongs
 ?

I am not sure if my pass should implement both runOnLoop and runOnFunction
methods or not.
I tried implementing a pass that subclasses both Function and Loop Pass, but
that didn't seem to work.

Any suggestions on the best way to implement such a pass will be extremely
helpful.


Thanks!
Malveeka
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Hi Malveeka,
> I want to write a LLVM pass that transforms loops only if they belong to
certain
> special functions.
> Right now I have a pass that can transform loops as I intend, but I do not
know
> how to check if the loop is actually contained in one of the  special
functions.
> Is there a way to identify the function to which a particular loop belongs 
?
if BB is a basic block (eg: one belonging to the loop) then BB->getParent()
will
return the enclosing function.

Ciao, Duncan.