llvm dev - Sep 2011 - [LLVMdev] PTX optimizations

Hi everyone,
I am trying to add some optimizations to LLVM's PTX backend. But i am
unaware of the existing optimizations. Can you please guide me about the
same?

Thank You:)
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On Fri, Sep 2, 2011 at 10:08 PM, Adarsh HV <adarsh.hv99 at gmail.com>
wrote:
> Hi everyone,
> I am trying to add some optimizations to LLVM's PTX backend. But i am
> unaware of the existing optimizations. Can you please guide me about the
same?
Hi Adarsh,

have you had chance to take a look at lib/Target/PTX? All PTX-specific
logic is there and it's only 13 cpp files.
Specifically, you can focus on lib/Target/PTX/PTXISelDAGToDAG.cpp

krasin
>
> Thank You:)
>
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>

On Sep 3, 2011 1:12 AM, "Adarsh HV" <adarsh.hv99 at gmail.com>
wrote:
>
> Hi everyone,
> I am trying to add some optimizations to LLVM's PTX backend. But i am
unaware of the existing optimizations. Can you please guide me about the
same?

So far, we have been focusing on code correctness and coverage, not PTX
specific optimization.  Unfortunately, I have not had the time I had hoped
to work on this over the summer.  We do collapse multiply-add pairs into
FMA, but that's about the extent of our optimizations.  I want to start
looking into converting branches into predicated code and load/store
scheduling, but I want to finish up the function call implementation first.

What kinds of optimizations are you wanting to implement?  We should
coordinate on this so as not to duplicate work.
>
> Thank You:)
>
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> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
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