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2008-07-05 Daniel Berlin <dberlin@dberlin.org> Fix PR tree-optimization/23455 Fix PR tree-optimization/35286 Fix PR tree-optimization/35287 * Makefile.in (OBJS-common): Remove tree-vn.o. tree-vn.o: Remove. * dbgcnt.def: Add treepre_insert debug counter. * gcc/tree-flow.h (add_to_value): Updated for other changes. (debug_value_expressions): Ditto. (print_value_expressions): Ditto. * tree-pretty-print.c (dump_generic_node): Updated for VALUE_HANDLE removal. * tree-ssa-dom.c (record_equality): Ditto. (cprop_operand): Ditto. (lookup_avail_expr): Ditto. * tree-ssa-threadedge.c (record_temporary_equivalences_from_stmts_at_dest): Ditto. (simplify_control_stmt_condition): Ditto. * tree.c (tree_code_size): Ditto. (tree_node_structure): Ditto. (iterative_hash_expr): Ditto. * tree.def: Ditto. * tree.h (VALUE_HANDLE_ID): Ditto. (VALUE_HANDLE_EXPR_SET): Ditto. (struct tree_value_handle): Ditto. (union tree_node): Ditto. * treestruct.def: Ditto. * tree-vn.c: Removed. * tree-ssa-pre.c: Rewritten entirely. * tree-ssa-sccvn.c (constant_to_value_id): New hashtable. (constant_value_ids): Ditto. (vn_nary_op_t): Moved to header. (vn_phi_t): Ditto. (vn_reference_op_t): Ditto (vn_reference_t): Ditto. (next_value_id): New variable. (VN_INFO): Add an assert. (vn_constant_eq): New function. (vn_constant_hash): Ditto. (get_or_alloc_constant_value_id): Ditto. (value_id_constant_p): Ditto. (vn_reference_compute_hash): De-staticify. (copy_reference_ops_from_ref): Don't use get_callee_fndecl. Disable some code with a FIXME. Remove VALUE_HANDLE use. (valueize_refs): Update opcode if it changes from ssa name to constant. (vn_reference_lookup_1): Add new argument. (vn_reference_lookup): Ditto. (vn_reference_lookup_pieces): New function. (vn_reference_insert): Add return type. Modify to deal with value ids. (vn_reference_insert_pieces): New function. (vn_nary_op_compute_hash): De-staticify. (vn_nary_op_eq): Ditto. (vn_nary_op_lookup_pieces): New function. (vn_nary_op_lookup): Add new argument. (vn_nary_op_insert_pieces): New function. (vn_nary_op_insert): Add return type. Modify to deal with value ids. (vn_phi_insert): Ditto. (visit_unary_op): Update for callee changes. (visit_binary_op): Ditto. (visit_reference_op_load): Ditto. (visit_reference_op_store): Ditto. (init_scc_vn): Init next_value_id, constant_to_value_id and constant_value_ids. (free_scc_vn): Free them. (set_hashtable_value_ids): New function. (run_scc_vn): Use it. (get_max_value_id): New function. (get_next_value_id): Ditto. (expressions_equal_p): Moved from tree-vn.c (sort_vuses): Ditto. (sort_vuses_heap): Ditto. * tree-ssa-sccvn.h: Structures moved from tree-ssa-sccvn.c (noted above). * tree.c (iterative_hash_hashval_t): Made non-static * tree.h (iterative_hash_hashval_t): Declare it. From-SVN: r137631
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