[Haskell-cafe] Re: does the compiler optimize repeated calls?

[Stephane Bortzmeyer]

[Warnings: newbie and not having tested or read the generated assembly
code.]

On Wed, Sep 06, 2006 at 09:32:07AM -0300,
 Alex Queiroz <asandroq at gmail.com> wrote 
 a message of 18 lines which said:

>    I am a newbie myself (second week of learning Haskell), but I'll
> give it a shot: Since functions have no side effects, the compiler
> executes the function only once.

Sure, "pure" programming languages *allow* the compiler to perform
such optimizations but it does not mean it is *actually* done
(promises are cheap but writing compiler code is expensive).