[Haskell-cafe] Operational Semantics of Haskell

[Donald Bruce Stewart]

darrelll:
> 
>    Is there a good source for the operational semantics of
>    Haskell?  I am trying to squeeze the most efficiency out of
>    a bit of code and am looking to remove unnecessary
>    reductions.

The best thing is to look at the tricks on the performance wiki,

    http://haskell.org/haskellwiki/Performance

The most useful tools are profiling (ghc -O2 -prof -auto-all ; then run
./a.out with +RTS -p), and reading the intermediate Core GHC produces.

-- Don