On 16/01/2011, at 6:46 PM, john skaller wrote:
> 
> UNFORTUNATELY whilst this fixed the list example..  it didn't make any 
> difference to my "ls" command .. that still crashes ;(
> 

I put debugging prints into the list.flx library code, to check if the 
C++ list mutation stuff might be causing the problems ..

and it fixed the bug. On examining the generated C++, the whole structure
of the output was changed (for the program). "print" requires a pointer to the
thread frame, and that changed the optimisation.

So .. this is the worst .. there's a bug in the optimiser it seems.
Or just that there's a bug in elsewhere that isn't exhibited with one
optimisation but is with the other (and the fault isn't in the optimiser).

The code is "too long" to have any hope of finding an optimisation bug.
The rebuild time is way to high as well (200 secs to reparse the std lib
really gets in the way).

--
john skaller
skal...@users.sourceforge.net





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