INCA: Inline Caching meets Quickening in Python 3.3

cgen/templates/inlined/PyRangeIter_Type

         {
             typedef struct {
                 PyObject_HEAD
                 long    index;
                 long    start;
                 long    step;
                 long    len;
             } rangeiterobject;
 
             if (((rangeiterobject*)v)->index < ((rangeiterobject*)v)->len) {
                 /* cast to unsigned to avoid possible signed overflow
                    in intermediate calculations. */
                 x= PyLong_FromLong((long)(((rangeiterobject*)v)->start +
                                           (unsigned long)(((rangeiterobject*)v)->index++)
                                           * ((rangeiterobject*)v)->step));
                 PUSH(x);
                 DISPATCH();
             }
             else {
                 x = NULL;
                 goto FOR_ITER_CONTINUE;
             } // if
         }