From: dnovillo@acm.org   
      
   On Mon, Jun 27, 2011 at 13:20, Douglas do Couto Teixeira   
    wrote:   
      
   >    could anyone point me to an implementation of range analysis?   
      
   You can try GCC's VRP pass:   
   http://gcc.gnu.org/viewcvs/trunk/gcc/tree-vrp.c?content-type=text%2Fplain&vie   
   w=co   
   Part of VRP is finding out range of values taken by scalars in the   
   program.   
      
   GCC implements a variant of J. R. C. Patterson's "Accurate Static   
   Branch Prediction by Value Range Propagation".   
      
      
   Diego.   
      
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