http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49936
--- Comment #1 from Sandra Loosemore <sandra at codesourcery dot com> 2011-08-01 19:44:34 UTC --- Created attachment 24886 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24886 WIP patch to MIPS backend Here is the WIP patch I referred to earlier. This patch (which handles abs only) produced pretty good code on 4.6 by adding MIPS-specific expansions of abs with explicit register constraints, but didn't fix the memory spills on 4.7. Since this is pretty complicated, I think it would be better to fix IRA to deal better with CANNOT_CHANGE_MODE_CLASS in a target-inspecific way than continue farther down this route.
