Internal and external iteration, fibers

[David Nadlinger]

On Thursday, 24 January 2013 at 07:55:37 UTC, Jacob Carlborg 
wrote:
> On 2013-01-24 03:35, deadalnix wrote:
>
>> SDC does something similar with LLVM JIT capabilities.
>
> That's the correct approach.

The question is not so much about correctness, but about 
performance.

Building an LLVM function and JIT-compiling it every time you 
need to evaluate a D expression will completely ruin your compile 
times (and I say that as an LLVM proponent). The idea itself is 
interesting for computationally heavy CTFE code, but I don't 
think it is feasible to go without lightweight code at least for 
simple »constant folding«-type applications.

David