------- Comment #3 from pinskia at gcc dot gnu dot org 2008-03-07 12:05 ------- I think the Ada front-end has TREE_CONSTANT and TREE_READONLY definition swapped around:
/* Whether we will make TREE_CONSTANT the DECL we produce here, in which case the initializer may be used in-lieu of the DECL node (as done in Identifier_to_gnu). This is useful to prevent the need of elaboration code when an identifier for which such a decl is made is in turn used as an initializer. We used to rely on CONST vs VAR_DECL for this purpose, but extra constraints apply to this choice (see below) and are not relevant to the distinction we wish to make. */ bool constant_p = const_flag && init_const; TREE_READONLY (var_decl) = const_flag; DECL_EXTERNAL (var_decl) = extern_flag; TREE_PUBLIC (var_decl) = public_flag || extern_flag; TREE_CONSTANT (var_decl) = constant_p; READ_ONLY means it is only read and not written to at all and the initializer is valid. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35493