2011/5/23 Stefan Behnel <[email protected]>:
>
> However, once we really know which values change between yield calls, i.e.
> which ones need to be stored away, it will actually be less expensive in
> most cases. We currently pay the indirection penalty for each access, even
> read access, whereas the C compiler can then keep important variables in
> registers and only write them back once per yield.
>
I think that all not NULL variables should be saved/restored inside yield.
I can not really track changes only assignments.
for i in a:
yield i # j is NULL here
for j in b:
yield j # a, b, i ,j should be saved/restored
--
vitja.
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