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* gimplify.c (find_single_pointer_decl_1): New static function. (find_single_pointer_decl): New static function. (internal_get_tmp_var): For a formal variable, set restrict base information if appropriate. * alias.c (find_base_decl): If a VAR_DECL has a restrict base, return it. * tree.h (DECL_BASED_ON_RESTRICT_P): Define. (DECL_GET_RESTRICT_BASE): Define. (SET_DECL_RESTRICT_BASE): Define. (decl_restrict_base_lookup): Declare. (decl_restrict_base_insert): Declare. (struct tree_decl_with_vis): Add based_on_restrict_p field. * tree.c (restrict_base_for_decl): New static variable. (init_ttree): Initialize restrict_base_for_decl. (copy_node_stat): Copy restrict base information. (decl_restrict_base_lookup): New function. (decl_restrict_base_insert): New function. (print_restrict_base_statistics): New static function. (dump_tree_statistics): Call print_restrict_base_statistics. From-SVN: r104890
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