http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54534
--- Comment #5 from rguenther at suse dot de <rguenther at suse dot de> 2012-09-11 10:38:32 UTC --- On Tue, 11 Sep 2012, hubicka at gcc dot gnu.org wrote: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54534 > > --- Comment #4 from Jan Hubicka <hubicka at gcc dot gnu.org> 2012-09-11 > 10:19:04 UTC --- > Well, the patch really is quite symptomatic - i.e. dwarf2out should not forget > about the decl when it is removed from varpool. > > The way things are supposed to work (I believe) is to call global_decl debug > hook via emit_debug_global_declarations that is called from frontend at global > decl wrapup time (i.e. the thing that is executed after whole compilation and > should not be frontend specific :) > > I made some cleanups in this area as part of symtab work, but I do not see how > those should affect the debug output... The regression is that it prints <optimized_out> which it really is. But at -O0 we don't IMHO want unused decls to go away. Not sure why it doesn't regress on trunk - somehow the decl is output anyway. Richard.
