Re: [Haskell-cafe] types and number of evaluation steps

* Holger Siegel [2012-02-18 12:52:08+0100]

You cannot. Common subexpression elimination is done by GHC very conservatively, because it can not only affect impure programs: it can also affects strictness/lazyness and worsen memory usage of pure code. Like the HaskellWiki says: "If you care about CSE, do it by hand."

How can it affect strictness or laziness? -- Roman I. Cheplyaka :: http://ro-che.info/