http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41580
--- Comment #4 from janus at gcc dot gnu.org 2011-01-05 12:16:33 UTC --- (In reply to comment #2) > For SAME_TYPE_AS and EXTENDS_TYPE_OF one should add a > compile-time simplification to simplify.c. > Currently, only the run-time version is implemented. Well, currently the translation of SAME_TYPE_AS is done by gfc_conv_same_type_as (trans-intrinsic.c), for both TYPE- and CLASS-valued arguments. Note: If both arguments are TYPE-valued, the result will be a compile-time constant, otherwise it has to be evaluated at runtime, according to the _hash values in the vtabs. In which situations would we actually gain something by treating the TYPE-TYPE case in simplify.c?
