I'm convinced my list based version can go faster than it is now. That's why I was asking if Don could put together a few notes on how to optimize inner loops using -ddump-simpl and the resulting Core code.
So, I guess my request is along the same lines as your earlier one:
> Also, could you explain how to check the Core (un)boxing in a note on the (new?)
> wiki? I would be interested in learning that trick.
I would love to have a tutorial about common situations one comes across when looking at the Core output.
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