------- Comment #18 from burnus at gcc dot gnu dot org 2010-07-16 14:47 ------- Answer: With the patch, one gets: gfortran -fwhole-file gfortran.dg/default_initialization_4.f90 without the patch (and still -fwhole-file) it works.
The reason is that one does not "copy" over the backend_decl for the components - which one might need to do recursively as the components might again be derived types. Thus, it fails at trans-expr.c's gfc_conv_component_ref for: gcc_assert (c->backend_decl). Actually, I do not quite understand why BT_CLASS works - the BT_DERIVED check of comment 13 should be also false for BT_CLASS, which means its backend_decl should already be imported with -fwhole-file. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44945