27 May
2009
27 May
'09
11:27 a.m.
On May 27, 2009, at 12:51 PM, Sittampalam, Ganesh wrote:
Sebastiaan Visser wrote:
...
But again, I might be missing some important point here.
That's exactly right. But it's pretty inconvenient to have your expression tree to blow up exponentially in relation to the code the user actually wrote! You can indeed construct an intermediate language that collapses this blowup, but the pass to create it must take exponential time if written completely purely, since it has to visit everything at least once.
In my experience [1], observable sharing using GHC's stable names is a pretty effective solution to this problem.
Ganesh
Thanks, I just pushed your paper on top of my stack. -- Sebastiaan Visser