http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48952
--- Comment #2 from Andi Kleen <andi-gcc at firstfloor dot org> 2011-05-10 20:49:28 UTC --- I uploaded a (large) test case to http://firstfloor.org/~andi/lto-kernel.tar.bz2 Run R2 in the directory after pointing the script to the right gcc binary.
