ANN: `dump-core` a prettier GHC core viewer

Eric Seidel eric at
Thu Jan 12 18:51:32 UTC 2017

Hi Iavor,

This sounds like a great idea, but it's not clear from the package
description *how* the output is improved over -ddump-simpl. An example
of the html output would be a great addition!


On Thu, Jan 12, 2017, at 10:36, 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:
> The instructions on how to use it are in the README file.
> You may also read about it at the github page:
> 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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