http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47148
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-01-01 21:08:40 UTC --- Maybe it is fnsplit fault, it might want to look at DECL_ARG_TYPE of the PARM_DECL in question (partial inlining means it always has a fndecl, so can look at its DECL_ARGUMENTS to find that type) and use that type instead of the type in TYPE_ARG_TYPES.
