------- Comment #4 from danglin at gcc dot gnu dot org 2010-05-13 21:00 -------
This was introduced in revision 159097:
2010-05-06 Jan Hubicka <j...@suse.cz>
* cgraphbuild.c (record_reference_ctx): Add varpool_node.
(record_reference, mark_address, mark_load, mark_store): Record
references.
(record_references_in_initializer): Update call of record_references.
(rebuild_cgraph_edges): Remove all references before rebuiding.
* cgraph.c (cgraph_create_node): Clear ref list.
(cgraph_remove_node): Remove references.
(dump_cgraph_node): Dump references.
(cgraph_clone_node): Clone references.
* cgraph.h: Include ipa-ref.h and ipa-ref-inline.h
(struct cgraph_node, varpool_node): Add ref_lst.
* ipa-ref.c: New file.
* ipa-ref.h: New file.
* ipa-ref-inline.h: New file.
* lto-cgraph.c (output_varpool): Take cgrag node set argument.
(referenced_from_other_partition_p): New function.
(lto_output_varpool_node): Take set arugment; call
referenced_from_other_partition.
(lto_output_ref): New.
(add_references): New.
(output_refs): New.
(output_cgraph): Compute boundary based on references;
output refs.
(output_varpool): Accept cgraph_node_set argument.
(input_ref): New.
(input_refs): New.
(input_cgraph): Call input_refs.
* lto-section-in.c (lto_section_name): Add refs.
* Makefile.in: (cgraph.h): Include ipa-ref.h and ipa-ref-inline.h
(ipa-ref.o): New file.
* varpool.c (varpool_node): Clear ipa ref list.
(varpool_remove_node): Remove references.
(dump_varpool_node): Dump references.
(varpool_assemble_decl): Only compile finalized ones.
(varpool_extra_name_alias): Initialize ref list.
* lto-streamer.c (lto-get_section_name): Add .refs section.
* lto-streamer.h (lto_section_type): Add LTO_section_refs.
(referenced_from_other_partition_p): Declared.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44019
