Prototype:
                     
float @__nv_ull2float_rn(i64 %l) 
Description:
                     
                     Convert the unsigned integer value x to a single-precision floating point value in round-to-nearest-even mode. 
                     
                     Returns:
                     Returns converted value. 
                     
                     Library Availability:
                     
                     Compute 2.0: Yes
                     Compute 3.0: Yes
                     Compute 3.5: Yes