llvm dev - Jul 2012 - [LLVMdev] How to calculate the transformation performed by a transformation pass?

How do I know how much a  transform  modified a program?
For example, if I have a program that has 4 loops and another with 1 loop,
and if I apply the loop-rotate pass, is sure that the first program will be
more modified which the second program. Am I right?

If yes,  how do I to calculate this transformation?

-- 
*Rafael Parizi*
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20120704/6b93f210/attachment.html>

On 7/4/12 10:25 AM, Rafael Parizi wrote:
> How do I know how much a  transform  modified a program?
> For example, if I have a program that has 4 loops and another with 1 
> loop, and if I apply the loop-rotate pass, is sure that the first 
> program will be more modified which the second program. Am I right?
>
> If yes,  how do I to calculate this transformation?
Many of the LLVM transforms keep statistics on what they do (e.g., how 
many instructions they remove, how many loops they've changed, etc.).

Passing the -Xclang -print-stats options to clang/clang++ should get it 
to print out the statistics.  You might find a statistic that gives you 
the information you want.

-- John T.
>
> -- 
> */Rafael Parizi/*
>
>
>
>
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20120705/077da391/attachment.html>