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Re: How would *you* use an intern?


I wrote (re improvements on signed/unsigned comparison warnings)

> > To be able to do this, GCC would need some form of range checking
> > architecture, where ranges of possible values are associated with
> > expressions and passed around by dataflow analysis.  It currently doesn't
> > have anything like this AFAIK.

Joseph Myers writes:
> Like the value range propagation pass developed by John Wehle and linked
> to from the projects list?
> 
> http://gcc.gnu.org/ml/gcc-patches/2000-07/msg00968.html

Yes, exactly like that.  I had a vague recollection of the discussion,
but didn't recall that anyone got this far in implementation work.
Of course, this is for future work and not for 3.0.



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