Dominic Steinitz wrote:
Any help would be appreciated.
I notice that there's not much user-accessible documentation of what you
can expect GHC (or some other Haskell implementation) to do and not do
with a given piece of code. For example, you have a lot of little
definitions that clearly traverse the same lists many times. I've no
idea where I would look, except for the compiler source, to get a sense
for when, if ever, the compiler might apply CSE, fusion, or any other
techniques that come to mind. So transmitting folk wisdom on what "the
compiler" might do with any given piece of code counts as another half
chapter in the "Practical Haskell" book that ought to get written :-)
<b
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