2005-03-17 Eric Botcazou <ebotcazou@adacore.com>
* ada-tree.h: (DECL_RENAMING_GLOBAL_P): New predicate.
(DECL_RENAMED_OBJECT): New accessor macro.
(SET_DECL_RENAMED_OBJECT): New setter macro.
* decl.c (gnat_to_gnu_entity) <E_Variable>: Stabilize the renamed
object in all cases. Attach the renamed object to the VAR_DECL.
(gnat_to_gnu_field): Do not lift the record wrapper if the size of the
field is not prescribed.
* misc.c (gnat_handle_option): Handle -gnatO separately.
(gnat_print_decl) <VAR_DECL>: New case.
Print the DECL_RENAMED_OBJECT node.
* lang.opt: Declare separate -gnatO option.
* trans.c (tree_transform) <N_Identifier>: If the object is a renaming
pointer, replace it with the renamed object.
<N_Validate_Unchecked_Conversion>: Warn for a conversion to a fat
pointer type if the source is not a fat pointer type whose underlying
array has the same non-zero alias set as that of the destination array.
From-SVN: r96660
