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* decl.c (get_atexit_fn_ptr_type): New function. (get_atexit_node): Use it. (start_cleanup_fn): Likewise. (register_dtor_fn): Use the object's destructor, instead of a separate cleanup function, where possible. * cp-tree.h (CPTI_ATEXIT_FN_PTR_TYPE): New enumerator. (atexit_fn_ptr_type_node): New macro. * decl2.c (build_cleanup): Use build_address. * g++.dg/init/cleanup3.C: New test. From-SVN: r125253
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