[Haskell-cafe] Code runs 7x FASTER with profiling

[Neil Mayhew]

On 2017-12-07 03:05 PM, Brandon Allbery wrote:
 > Bugs, usually. I think there was one such in 8.2.1 and if so it may 
not have been completely fixed

So if I was being a good citizen I'd try this out with ghc master built 
from source and report a bug if it's not fixed? Or do you thin it would 
be sufficient to use a binary installer of ghc 8.2.2?