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Regression with "varpool alias reorg"
- From: Hans-Peter Nilsson <hp at bitrange dot com>
- To: Jan Hubicka <hubicka at ucw dot cz>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Wed, 22 Jun 2011 00:00:36 -0400 (EDT)
- Subject: Regression with "varpool alias reorg"
- References: <20110618083233.GA22220@kam.mff.cuni.cz>
On Sat, 18 Jun 2011, Jan Hubicka wrote:
> * 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 a regression for emutls targets, see PR49500.
brgds, H-P