PR middle-end/16460
* cgraph.c (cgraph_unnest_node): New function.
(c_finalize): Rename to ....
(c_warn_unused_result_recursivly): ... this one; do only the warning
(finish_function): Finalize the toplevel function; do not lower nested tree.
* cgraph.h (cgraph_unnest_node): Declare.
* cgraphunit.c (decide_is_function_needed): Do not use cgraph
nestedness datastructure.
* cse.c (cse_insn): Do not cprop nonlocal LABEL_REFs.
* reload1.c (set_label_offsets): Fix call of set_label_offsets.
* tree-nested.c (finlize_nesting_tree_1): Use un-nesting code.
* utils.c (gnat_finalize): Remove.
(end_subprog_body): Directly call cgraph_finalize_function;
do not lower the nested functions.
* trans-decl.c (build_entry_thunks): Finalize the function; do not lower
tree.
(gfc_generate_function_code): Likewise.
From-SVN: r87770
