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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
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