[LLVMdev] Accessing Loop Variables

[dhruv choudhary]

Hi,

You can use the getInductionVariable() on each loop,and maintain a smallvect
of all induction variables that you have come across.
Also remember to run some passes to hoist loop independent entities out of
the loop.

Cheers

Dhruv

On Mon, Oct 12, 2009 at 6:46 AM, Prasenjit Chakraborty
<cprasenj at in.ibm.com>wrote:

>
> Hi,
>      How do I access the loop variables in a loop.
>
> for(i = 0; i < N; i++)
>      for(j = 0; j < M; j++)
>            A[i][j+k] = i + j;
>
> Is there anyway for me to know that in A[i][j+k], i & j are loop variables
> whereas k is not!
>
> Regards,
>
> Prasenjit Chakraborty
> Performance Modeling and Analysis
> IBM Systems & Technology Lab
>
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School of Electrical and Computer Engineering
Georgia Institute of Technology

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