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* cgraph.c (cgraph_add_thunk): Create real function node instead of alias node; finalize it and mark needed/reachale; arrange visibility to be right and add it into the corresponding same comdat group list. (dump_cgraph_node): Dump thunks. * cgraph.h (cgraph_first_defined_function, cgraph_next_defined_function, cgraph_function_with_gimple_body_p, cgraph_first_function_with_gimple_body, cgraph_next_function_with_gimple_body): New functions. (FOR_EACH_FUNCTION_WITH_GIMPLE_BODY, FOR_EACH_DEFINED_FUNCTION): New macros. * ipa-cp.c (ipcp_need_redirect_p): Thunks can't be redirected. (ipcp_generate_summary): Use FOR_EACH_FUNCTION_WITH_GIMPLE_BODY. * cgraphunit.c (cgraph_finalize_function): Only look into possible devirtualization when optimizing. (verify_cgraph_node): Verify thunks. (cgraph_analyze_function): Analyze thunks. (cgraph_mark_functions_to_output): Output thunks only in combination with function they are assigned to. (assemble_thunk): Turn thunk into non-thunk; don't try to turn alias into normal node. (assemble_thunks): New functoin. (cgraph_expand_function): Use it. * lto-cgraph.c (lto_output_node): Stream thunks. (input_overwrite_node): Stream in thunks. * ipa-pure-const.c (analyze_function): Thunks do nothing interesting. * lto-streamer-out.c (lto_output): Do not try to output thunk's body. * ipa-inline.c (inline_small_functions): Use FOR_EACH_DEFINED_FUNCTION. * ipa-inline-analysis.c (compute_inline_parameters): "Analyze" thunks. (inline_analyze_function): Do not care about thunk jump functions. (inline_generate_summary):Use FOR_EACH_DEFINED_FUNCTION. * ipa-prop.c (ipa_prop_write_jump_functions): Use cgraph_function_with_gimple_body_p. * passes.c (do_per_function_toporder): Use cgraph_function_with_gimple_body_p. (execute_one_pass);Use FOR_EACH_FUNCTION_WITH_GIMPLE_BODY. (ipa_write_summaries): Use cgraph_function_with_gimple_body_p. (function_called_by_processed_nodes_p): Likewise. * lto.c (lto_materialize_function): Use cgraph_function_with_gimple_body_p. (add_cgraph_node_to_partition): Do not re-add items to partition; handle thunks. (add_varpool_node_to_partition): Do not re-add items to partition. From-SVN: r173517
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