http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47229
--- Comment #2 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2011-01-09 14:47:10 UTC --- See discussions on gcc-patches in Aug/Sep 2010 of patches that attempted to add such drivers but duplicated too much code instead of carefully refactoring with incremental changes without changing behavior except where explicitly intended and explained. Note that the drivers can now use VECs which may make some of the things discussed in those threads simpler to do....
