[Bug rtl-optimization/86627] Inefficient division of 128-bit ints by small constant integers

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86627

--- Comment #1 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Originally found by profiling Fortran code like

   integer(16) :: i, j
   ...
   j = i/2

and wondering why this took so long :-)