On Sat, Jun 18, 2011 at 1:32 AM, Jan Hubicka <hubi...@ucw.cz> wrote: > Hi, > this patch makes symetric changes to varpool as did the prevoius series to > cgraph. > Basically the aliases are now represented as separate varpool nodes with > alias reference > to the variable they refer to, with some infrastructure to walk the alias > references > as needed. > > Bootstrapped/regtested x86_64-linux, comitted. > > Honza > > * lto-symtab.c (lto_varpool_replace_node): Remove code handling > extra name aliases. > (lto_symtab_resolve_can_prevail_p): Likewise. > (lto_symtab_merge_cgraph_nodes): Update alias_of pointers. > * cgraphbuild.c (record_reference): Remove extra body alias code. > (mark_load): Likewise. > (mark_store): Likewise. > * cgraph.h (varpool_node): Remove extra_name filed; > add alias_of and extraname_alias. > (varpool_create_variable_alias, varpool_for_node_and_aliases): Declare. > (varpool_alias_aliased_node): New inline function. > (varpool_variable_node): New function. > * cgraphunit.c (handle_alias_pairs): Handle also variable aliases. > * ipa-ref.c (ipa_record_reference): Allow aliases on variables. > * lto-cgraph.c (lto_output_varpool_node): Update streaming. > (input_varpool_node): Likewise. > * lto-streamer-out.c (produce_symtab): Remove extra name aliases. > (varpool_externally_visible_p): Remove extra body alias code. > (function_and_variable_visibility): Likewise. > * tree-ssa-structalias.c (associate_varinfo_to_alias_1): New function. > (ipa_pta_execute): Use it. > * varpool.c (varpool_remove_node): Remove extra name alias code. > (varpool_mark_needed_node): Likewise. > (varpool_analyze_pending_decls): Analyze aliases. > (assemble_aliases): New functoin. > (varpool_assemble_decl): Use it. > (varpool_create_variable_alias): New function. > (varpool_extra_name_alias): Rewrite. > (varpool_for_node_and_aliases): New function.
This caused: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49463 -- H.J.
