llvm dev - Aug 2017 - LLVM (Cool/Warm) DOT Printers for Profiling

Hi everyone,

I have been working with profiling in LLVM and I was wondering if it would
be interesting to upstream the following DOT Printers for Profiling
Visualization:
https://github.com/rcorcs/llvm-heat-printer

All suggestions are welcomed.

Thanks,

Rodrigo Rocha
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Hi Rodrigo,

This work looks great and very valuable to those of us who use CFGs to diagnose
optimisation issues.

Have you thought of trying to fold this into the existing LLVM -dot-cfg and
-dot-cfg-only passes?  The optimisation remark infrastructure is using hotness
information when it is available, it seems like it would be a good idea to add
this to graph generation if hotness information is available there too.

I don't know how significant an amount of work that would be, but selfishly,
I would find it a lot easier to use if it was in LLVM itself rather than having
to build and load it as a plugin.

Sam

> On 13 Jul 2017, at 1:43 pm, Rodrigo Caetano Rocha via llvm-dev <llvm-dev
at lists.llvm.org> wrote:
> 
> Hi everyone,
> 
> I have been working with profiling in LLVM and I was wondering if it would
be interesting to upstream the following DOT Printers for Profiling
Visualization:
> https://github.com/rcorcs/llvm-heat-printer
<https://github.com/rcorcs/llvm-heat-printer>
> 
> All suggestions are welcomed.
> 
> Thanks,
> 
> Rodrigo Rocha
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
--
Archibald Sam Elliott
ashe2 at cs.washington.edu
PhD Student, PLSE Group

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Hi Sam,

I'm glad you found it interesting and that it can be of some use.

I'll look into the integration with the existing DOT Printers.

Cheers,

Rodrigo

On Fri, 11 Aug 2017 at 00:32 Sam Elliott <ashe2 at cs.washington.edu>
wrote:
> Hi Rodrigo,
>
> This work looks great and very valuable to those of us who use CFGs to
> diagnose optimisation issues.
>
> Have you thought of trying to fold this into the existing LLVM -dot-cfg
> and -dot-cfg-only passes?  The optimisation remark infrastructure is using
> hotness information when it is available, it seems like it would be a good
> idea to add this to graph generation if hotness information is available
> there too.
>
> I don't know how significant an amount of work that would be, but
> selfishly, I would find it a lot easier to use if it was in LLVM itself
> rather than having to build and load it as a plugin.
>
> Sam
>
>
> On 13 Jul 2017, at 1:43 pm, Rodrigo Caetano Rocha via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
> Hi everyone,
>
> I have been working with profiling in LLVM and I was wondering if it would
> be interesting to upstream the following DOT Printers for Profiling
> Visualization:
> https://github.com/rcorcs/llvm-heat-printer
>
> All suggestions are welcomed.
>
> Thanks,
>
> Rodrigo Rocha
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
>
> --
> Archibald Sam Elliott
> ashe2 at cs.washington.edu
> PhD Student, PLSE Group
>
>
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