[LLVMdev] Question About Function Cloning

[Johannes Doerfert]

Hi Arnamoy,

in case the loop iteration variables are local (probably most of the times),
run the mem2reg pass before your cloning pass. In case they are not (or you don't
like the mem2reg solution), you could introduce loads in front of the
'original function' which then serve as input for the 'duplicated function'.
However, you have to consider loop variant upper bounds and strides too.

Best regards,
  Johannes

On Fri, Oct 25, 2013 at 04:35:20PM +0100, Tim Northover wrote:
> Hi Arnamoy,
> 
> > Any idea, why the output looks like -
> 
> > Hello World
> > Hello World
> > val is 58
> >
> > While the it should print 4 times?
> 
> Both your loops are sharing the counter variable (%i1) without
> resetting it to 0 in between calls. I think that accounts for the
> behaviour.
> 
> Cheers.
> 
> Tim.
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