LLVM (Cool/Warm) DOT Printers for Profiling

[Rodrigo Caetano Rocha via llvm-commits]

Hi everyone,

This is a forward from the message I sent to the llvm-dev mailing list.
I've just realised that this is the correct mailing list for sending
contributions.

I have added extended the CFGPrinter and CallPrinter with heat colors based
on heuristics or profiling information.
It is based on my llvm-heat-printer:
https://github.com/rcorcs/llvm-heat-printer

Here you can find the diff of my patch.
It was developed on top of the svn trunk version.

I would like some help to see if I can upstream my contribution.

Thanks,

Rodrigo Rocha
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