* gcc-interface/ada-tree.h (TYPE_PACKED_ARRAY_TYPE_P): Add checking.
(TYPE_BY_REFERENCE_P): New flag.
(TYPE_IS_BY_REFERENCE_P): New macro.
(TYPE_DUMMY_P): Add checking and remove VOID_TYPE.
(TYPE_IS_DUMMY_P): Adjust for above change.
* gcc-interface/decl.c (gnat_to_gnu_entity): Use TYPE_BY_REFERENCE_P
and TYPE_IS_BY_REFERENCE_P instead of TREE_ADDRESSABLE.
(gnat_to_gnu_param): Likewise.
(maybe_pad_type): Likewise.
(make_type_from_size): Use TYPE_IS_PACKED_ARRAY_TYPE_P.
* gcc-interface/misc.c (must_pass_by_ref): Use TYPE_IS_BY_REFERENCE_P
instead of TREE_ADDRESSABLE.
* gcc-interface/trans.c (finalize_nrv): Likewise.
(call_to_gnu): Likewise. Do not create a temporary for return values
with by-reference type here.
(gnat_to_gnu): Test TYPE_IS_DUMMY_P instead of TYPE_DUMMY_P.
(gnat_gimplify_expr) <ADDR_EXPR>: Don't do anything for non-constant
CONSTRUCTORs and calls.
* gcc-interface/utils.c (make_dummy_type): Get the equivalent type of
the underlying type and use it throughout. Use TYPE_IS_BY_REFERENCE_P
instead of TREE_ADDRESSABLE.
* gcc-interface/utils2.c (build_cond_expr): Deal with by-reference
types explicitly.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@184594
138bc75d-0d04-0410-961f-
82ee72b054a4