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2005-12-29 Daniel Berlin <dberlin@dberlin.org> * tree.h (VALUE_HANDLE_VUSES): New. (struct tree_value_handle): Add vuses. * tree-vn.c (struct val_expr_pair_d): Remove stmt, add vuses. (vn_compute): Remove stmt argument. Don't use vuses in hash value computation. (val_expr_pair_eq): Compare vuse lists. (copy_vuses_from_stmt): New function. (shared_vuses_from_stmt): Ditto. (vn_add): Rewrite in terms of vn_add_with_vuses. (vn_add_with_vuses): New function. (vn_lookup): Rewrite in terms of vn_lookup_with_vuses. (vn_lookup_with_vuses): New function. (vuses_compare): New function. (print_creation_to_file): Ditto. (vn_lookup_or_add): Rewrite to handle vuses. (sort_vuses): New function. (vn_lookup_or_add_with_vuses): Ditto. (vn_init): Initialize shared_lookup_vuses. (vn_delete): Free shared_lookup_vuses. * tree-ssa-pre.c: Update todo list. (bb_value_sets_t): Add rvuse_in, rvuse_out, rvuse_gen, and rvuse_kill. (RVUSE_IN): New macro. (RVUSE_GEN): Ditto. (RVUSE_KILL): Ditto. (RVUSE_OUT): Ditto. (modify_expr_node_pool): New function. (pretemp): New. (storetemp): Ditto. (mergephitemp): Ditto. (prephitemp): Ditto. (struct expr_pred_trans_d): Add vuses member. (expr_pred_trans_eq): Compare vuses. (phi_trans_lookup): Add vuses argument. (phi_trans_add): Ditto. (translate_vuses_through_block): New function. (phi_translate): Use vuses to ask about those expressions that can have vuses. Properly translate virtual uses through phis, and use vn_lookup_or_add_with vuses. Handle tcc_reference. (phi_translate_set): Don't add pointless translations to the cache. (get_representative): New function. (vuses_dies_in_block_x): Ditto. (valid_in_set): Add block argument. Check virtual use validity. (clean): Add block argument. Update call to valid_in_set (compute_antic_aux): Update call to clean. (dump_bitmap_of_names): New function. (compute_vuse_representatives): Ditto. (compute_rvuse): Ditto. (can_value_number_call): Modified to accept calls with vuses. (can_value_number_operation): New function. (can_PRE_operation): Ditto. (need_creation): New vector of stores that may need creation. (find_or_generate_expression): use can_PRE_operation. (create_expression_by_pieces): Handle INDIRECT_REF. Only create one temp until we have to change types. Mark new vars for renaming. (insert_into_preds_of_block): Ignore loopiness of loads. Use can_PRE_operation. Only create one temp until we have to chnge types. (insert_aux): Use can_PRE_operation. Don't pass name to insert_into_preds_of_block. (insert_extra_phis): Only use one temp until we have to change types. (poolify_tree): New function. (modify_expr_template): New var. (poolify_modify_expr): New function. (insert_fake_stores): Ditto. (realify_fake_stores): Ditto. (compute_avail): Use can_value_number_operation. (mark_operand_necessary): Return NULL for non-SSA names. (remove_dead_inserted_code): Update comment. (init_pre): Initialize pretemp, need_creation, storetemp, mergephitemp, prephitemp. Create modify_expr_node_pool. (fini_pre): Free modify_expr_node_pool and need_creation array. (execute_pre): Call insert_fake_stores, compute_rvuse, and realify_fake_stores. * tree-flow.h (vn_compute): Fix prototype. (vn_add): Ditto. (vn_lookup): Ditto. (sort_vuses): New. (vn_lookup_or_add_with_vuses): Ditto. (vn_add_with_vuses): Ditto. (vn_lookup_with_vuses): Ditto. * passes.c (pass_may_alias): Add. From-SVN: r109180
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