Guaranteed Optimization

[Knud Sørensen]

Does anyone know of tools which might be use to hack up a deoptimizer like
that ???

It does not have to be a tool written in D, but is should be possible
to generate D code. Maybe a good genetic programing tool can be used, I
don't know.
 
Any suggestions ??

 
On Mon, 13 Nov 2006 10:04:00 +0100, Knud Sørensen wrote:

> I think it is  possible to systematic search 
> for cases where dmd don't make optimal code.
> 
> How this could be done is described at
> http://www.oonumerics.org/lunar/
> 
> The idea is that one start with a simples program
> main()
> {
>  return(0);
> }
> 
> Then one deoptimize it through one or more deoptimizing steps, example:
> 
> main()
> {
>  int i=0;
>  if (false)
>   {
>     int i=10;
>   }
>  return(i)
> }
> 
> At last one run the deoptimized program through the compiler and 
> compere the result to the result of the start program.
> 
> Now we just need someone to write a deoptimizer for D.