mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-04-11 11:50:59 +08:00
3e5937d7b3
2007-01-18 Daniel Berlin <dberlin@dberlin.org> * tree-ssa-structalias.c: Update comments. (ptabitmap_obstack): Removed. (pta_obstack): New. (oldpta_obstack): Ditto. (stats): Add a few members. (struct variable_info): Remove node, complex, address_taken, and indirect_target members. Add oldsolution member. (new_var_info): Do not initialize removed members. (constraint_expr_type): Remove INCLUDES. (constraint_graph): Add size, implicit_preds, rep, indirect_cycles, eq_rep, label, direct_nodes, and complex members. (FIRST_REF_NODE): New macro. (LAST_REF_NODE): Ditto. (FIRST_ADDR_NODE): Ditto. (find): New function. (unite): Ditto. (dump_constraint): Do not handle INCLUDES. (insert_into_complex): Do not insert duplicate constraints. (condense_varmap_nodes): Renamed and rewritten into ... (merge_node_constraints): This. Also fix bug in handling of offseted copy constraints. (clear_edges_for_node): No longer need to deal with preds at all, or removing associated preds/succs. (merge_graph_nodes): Deal with indirect_cycles. Don't deal with predecessors. (add_implicit_graph_edge): New function. (add_pred_graph_edge): Ditto. (add_graph_edge): Don't deal with predecessors. (build_constraint_graph): Removed. (build_pred_graph): New function. (build_succ_graph): Ditto. (struct scc_info): Removed in_component. Added roots, dfs, and node_mapping. Remove visited_index, unification_queue. (scc_visit): Deal with union-find we do now. Deal with cycles with REF nodes. (collapse_nodes): Renamed and rewritten to ... (unify_nodes): This. (process_unification_queue): Removed. (topo_visit): Cleanup (do_da_constraint): Use find. (do_sd_constraint): Ditto. (do_ds_constraint): Ditto. (do_complex_constraint): Ditto. (init_scc_info): Update for removed and added members. (find_and_collapse_graph_cycles): Renamed and rewritten into ... (find_indirect_cycles): This. (equivalence_class): New variable. (label_visit): New function. (perform_variable_substitution): Rewritten. (free_var_substitution_info): New function. (find_equivalent_node): Ditto. (move_complex_constraints): Ditto. (eliminate_indirect_cycles): Ditto. (solve_graph): Only propagate changed bits. Use indirect cycle elimination. Use find. (tree_id_t): Rename to tree_vi_t, delete id member, add vi member. (tree_id_eq): Renamed to ... (tree_vi_eq): This. Update for member change (insert_id_for_tree): Renamed and rewritten to ... (insert_vi_for_tree): This. (lookup_id_for_tree): Renamed and rewritten to ... (lookup_vi_for_tree): This. (get_id_for_tree): Renamed and rewritten to ... (get_vi_for_tree): Ditto. (get_constraint_exp_from_ssa_var): Update to use get_vi_for_tree. (process_constraint): Don't handle INCLUDES. Remove special ADDRESSOF case. (find_func_aliases): Rewrite to use vi functions instead of id ones. (create_function_info_for): Ditto. (create_variable_info_for): Ditto. (intra_create_variable_infos): Ditto. (merge_smts_into): Ditto. (find_what_p_points_to): Ditto. (init_base_vars): Ditto. (init_alias_vars): Ditto. (remove_preds_and_fake_succs): New function. (dump_sa_points_to_info): Dump new stats. (dump_solution_for_var): Use find. (set_used_smts): Fix formatting. (compute_points_to_sets): Updated for new functions. (ipa_pta_execute): Ditto. From-SVN: r120931
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the file COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs.html for how to report bugs usefully.