Loop optimization

[BCS]

Hello Don,

> The most glaring limitation of the FP optimiser is that it seems to
> never keep values in the FP stack. So that it will often do:
> FSTP x
> FLD x
> instead of FST x
> Fixing this would probably give a speedup of ~20% on almost all FP
> code, and would unlock the path to further optimisation.

Does DMD have the ground work for doing FP keyhole optimizations? That sound 
like an easy one.

-- 
... <IXOYE><