[LLVMdev] [Pass] How to gather data dependencies

[Valmico]

Shouldn't Dependence Analysis Pass do most of this work for me?

W dniu 2013-08-08 10:00, erkan diken pisze:
> Take a look to this page: 
> https://sites.google.com/site/parallelizationforllvm/
>
>
> On Wed, Aug 7, 2013 at 10:52 PM, Valmico <valmico88 at gmail.com 
> <mailto:valmico88 at gmail.com>> wrote:
>
>     Hello,
>
>     I'm currently trying to develop new LLVM Pass that will generate
>     simple data dependencies graph. For now I'm trying to get familiar
>     with DependenceAnalysis.
>     My general idea is to traverse each function (runOnFunction) top
>     to bottom Instruction by Instruction, using DA.depends( I, I2,
>     ...) on every Instructions combination in function to check if
>     they are dependent on any others.
>
>     Problem is that almost all (if not all) Instructions seems to be
>     dependent on others even if they write/read to/from different
>     memory cells.
>     Also I'm getting Dependence (confused) object, not the
>     FullDependence, should i try to dynamically cast it to
>     FullDependence, or is there a way to determine which Dependence
>     instance i got other way?
>
>     Please help, I'm not an C++ nor LLVM programmer, but
>     PHP-developer, however i need it done asap. If you can help just a
>     little, give me a hint, i'll be very, very thankful for ANY support.
>
>     Best Regards
>     Valmico
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>
>
>
>
> -- 
> Best Regards,
> Erkan Diken
> ------------------

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