c58936b6b7
2006-12-04 Daniel Berlin <dberlin@dberlin.org> * tree-ssa-alias.c (compute_may_aliases): Compute flow sensitive before flow insensitive. (compute_flow_sensitive_aliasing): Don't try to add a symbol memory tag to itself. * alias.h (alias_set_subset_of): New prototype. * alias.c (alias_set_subset_of): New function. * tree-ssa-structalias.c: Update comments. (struct variable_info): Add finished_solution. (new_varinfo): Set finished solution to NULL. (var_escaped_vars): Remove. (escaped_vars_tree): Remove. (escaped_vars_id): Remove. (nonlocal_vars_id): Remove. (constraint_expr_type): Add INCLUDES. (graph_size): Removed. (dump_constraint): Support INCLUDES. (build_constraint_graph): Ditto. (collapse_nodes): Add merge_solutions argument. Don't merge attributes. (process_unification_queue): Just use collapse_nodes. (perform_var_substitution): Update call to collapse_nodes. (get_constraint_exp_from_ssa_var): Use INCLUDES. (process_constraint): Fix non-field sensitive handling Handle includes. (get_constraint_for): Use INCLUDES. (make_constraint_from_anything): Renamed from make_constraint_from_escaped. (make_constraint_to_escaped): Removed. (find_global_initializers): Removed. (create_variable_info_for): Do not make constraints to escaped vars anymore. (dump_solution_for_var): Don't print out the equivalent points-to sets, just use the name of the variable it shares it with. (intra_create_variable_infos): Use INCLUDES. Change nonlocal variable sets to anything sets. (init_base_vars): Remove escaped_vars and nonlocal_var initialization. (find_escape_constraints): Removed. (delete_points_to_sets): Remove dead code. (used_smt_calculated): New variable. (set_used_smts): New function. (merge_smts_into): New function. (find_what_p_points_to): Modify to use SMTs. (create_nonlocal_var): Remove. * tree-ssa-operands.c (access_can_touch_variable): Remove reference to nonlocal_all. * tree-ssa.c (verify_name_tags): Remove. From-SVN: r119502
37 lines
1.4 KiB
C
37 lines
1.4 KiB
C
/* Exported functions from alias.c
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Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to the Free
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Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301, USA. */
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#ifndef GCC_ALIAS_H
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#define GCC_ALIAS_H
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extern HOST_WIDE_INT new_alias_set (void);
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extern HOST_WIDE_INT get_varargs_alias_set (void);
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extern HOST_WIDE_INT get_frame_alias_set (void);
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extern bool component_uses_parent_alias_set (tree);
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extern bool alias_set_subset_of (HOST_WIDE_INT, HOST_WIDE_INT);
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/* This alias set can be used to force a memory to conflict with all
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other memories, creating a barrier across which no memory reference
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can move. Note that there are other legacy ways to create such
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memory barriers, including an address of SCRATCH. */
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#define ALIAS_SET_MEMORY_BARRIER ((HOST_WIDE_INT) -1)
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#endif /* GCC_ALIAS_H */
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