http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44463
--- Comment #8 from Jan Hubicka <hubicka at ucw dot cz> 2011-01-07 12:41:45 UTC --- actually it might be as easy as walking alias pairs after decl merging and killing all pairs where decl has been replaced by different. This probably can be done at same time as we rewrite IL.
