On January 12, 2017 1:36:12 PM EST, Iavor Diatchki wrote:

Hello,

Over the holidays I wrote a small GHC plugin to help me do some low-level optimizations of Haskell code. I thought it might be of use to other people too, so please try it out!

When enabled, the plugin will save the Core generated by GHC in JSON format, and also render it in HTML for human inspection.

The plugin is available on Hackage: http://hackage.haskell.org/package/dump-core

The instructions on how to use it are in the README file. You may also read about it at the github page: http://hackage.haskell.org/package/dump-core

There are many things that could probably be improved, just let me know. Also, if you are good at design, I could use some help making things look prettier :)

Happy hacking, -Iavor

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This looks fantastic, Iavor. I have often wanted something like this. It would be nice if the package would also expose a library providing the types along with FromJson instances so one can load a dump into ghci for further inspection. I've also long wanted a tool to easily fuzzily compare pairs of core dumps. This could be a great tool for enabling this. Cheers, - Ben

Wow, this looks great! Do you think you could write a very short tutorial on how to use this plugin in a stack project? A good example project might be Chris Done's "xeno" which raised a lot of interest in generating fast Core: https://www.reddit.com/r/haskell/comments/5ng8ov/fast_haskell_competing_with... Regarding the example output at http://yav.github.io/dump-core/example-output/Galua.OpcodeInterpreter.html: Is it intended that the variables in "$wsetStackSize" are (nearly) all named "ww"? I think it would be more readable if I didn't have to hover the cursor over a variable to tell which is which. Lastly, could you please include the README in the extra-source-files, so it's rendered on Hackage? Thanks, Simon 2017-01-12 19:36 GMT+01:00 Iavor Diatchki :

Hello,

Over the holidays I wrote a small GHC plugin to help me do some low-level optimizations of Haskell code. I thought it might be of use to other people too, so please try it out!

When enabled, the plugin will save the Core generated by GHC in JSON format, and also render it in HTML for human inspection.

The plugin is available on Hackage: http://hackage.haskell.org/package/dump-core

The instructions on how to use it are in the README file. You may also read about it at the github page: http://hackage.haskell.org/package/dump-core

There are many things that could probably be improved, just let me know. Also, if you are good at design, I could use some help making things look prettier :)

Happy hacking, -Iavor

_______________________________________________ Haskell-Cafe mailing list To (un)subscribe, modify options or view archives go to: http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe Only members subscribed via the mailman list are allowed to post.