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* decl2.c (defer_fn): Set DECL_DEFER_OUTPUT. (finish-file): Do not process function with DECL_DEFER_OUTPUT clear; clear DECL_DEFER_OUTPUT once function is processed; avoid flags massaging. * cp-tree.h (DECL_NEEDED_P): Support unit-at-a-time (expand_or_defer_fn): Declare. (lower_function): Declare. * decl.c (start_cleanup_fn): Use expand_or_defer_fn. * decl2.c: Include cgraph.h and varpool.h (maybe_emit_vtables): Make explicit instantations as needed. (mark_member_pointers, lower_function): New functions. (finish_file): Do unit-at-a-time. * method.c (synthesize_method): Use expand_or_defer_fn. * optimize.c (maybe_clone_body): Use expand_or_defer_fn. * parser.c (cp_parser_function_definition_after_decl): Use expand_or_defer_fn. * pt.c (instantiate_decl): Likewise. * semantics.c: Include cgraph.h (expand_or_defer_fn): Break out from ... (expand_body): ... here; deal with unit-at-a-time. * cp-lang.c (LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION, LANG_HOOKS_CALLGRAPH_LOWER_FUNCTION): Define. From-SVN: r68801
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