[% setvar title Unrolling loops and tail recursion %]
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Unrolling loops and tail recursion
Maintainer: Simon Cozens <email@example.com> Date: 25 Sep 2000 Mailing List: firstname.lastname@example.org Number: 302 Version: 1 Status: Developing
Implement loop unrolling and tail recursion elimination as optional optimisations.
Tail recursion elimination is something which has been on the todo for a long time, but I think nobody's done it because it's really really hard. I'd suggest
use optimize 'recursion';
would be a natural syntax, if
less turns into
Unrolling of loops is something that becomes important for compiling to standalone executables; I think
use optimize 'unroll-loops';
would be the way to signify that. If we have a standalone compiler, I'd
suggest the cc-style
-f... command-line options.
I have no idea how to implement tail recursion elimination, and I'd dearly love to learn. Unrolling loops with constant indices shouldn't be too hard.
RFC 303: Keep
use less, but make it work.