[PATCH] ipsum_calc_block: Optimize size and speed
joakim.tjernlund at transmode.se
Fri Apr 23 16:14:58 CEST 2010
> > But you can't get rid of:
> > z + (z < sum)
> > which is the real bottleneck. Perhaps this doesn't cost much
> > on high end CPUs but it sure does on embedded CPUs
> Why should it be? It can be compiled as a sequence of "add with carry"
> instructions, can't it?
Yes, but have you seen gcc do that? I havn't, perhaps gcc has become smarter
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