[Bug rtl-optimization/48077] [Code Improvement] Use multiplication by magic number for integer division by constant

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48077

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-03-11 
17:11:25 UTC ---
Actually GCC is expanding the division by a constant into a multiplication but
using shifts and adds to do the multiplication based on the cost.