1e6a9047b3
* doc/md.texi (automata_option): Document collapse-ndfa. * genautomata.c (COLLAPSE_OPTION): New macro. (collapse_flag): New static variable. (struct description): New member normal_decls_num. (struct automaton): New members advance_ainsn and collapse_ainsn. (gen_automata_option): Check for COLLAPSE_OPTION. (collapse_ndfa_insn_decl): New static variable. (add_collapse_ndfa_insn_decl, special_decl_p): New functions. (find_arc): If insn is the collapse-ndfa insn, accept any arc we find. (transform_insn_regexps): Call add_collapse_ndfa_insn_decl if necessary. Use normal_decls_num rather than decls_num, remove test for special decls. (create_alt_states, form_ainsn_with_same_reservs): Use special_decl_p. (make_automaton); Likewise. Use the new advance_cycle_insn member of struct automaton. (create_composed_state): Disallow advance-cycle arcs if collapse_flag is set. (NDFA_to_DFA): Don't create composed states for the collapse-ndfa transition. Create the necessary transitions for it. (create_ainsns): Return void. Take an automaton_t argument, and update its ainsn_list, advance_ainsn and collapse_ainsn members. All callers changed. (COLLAPSE_NDFA_VALUE_NAME): New macro. (output_tables): Output code to define it. (output_internal_insn_code_evaluation): Output code to accept const0_rtx as collapse-ndfa transition. (output_default_latencies, output_print_reservation_func, output_print_description): Reorganize loops to use normal_decls_num as loop bound; remove special case for advance_cycle_insn_decl. (initiate_automaton_gen): Handle COLLAPSE_OPTION. (check_automata_insn_issues): Check for collapse_ainsn. (expand_automate): Allocate sufficient space. Initialize normal_decls_num. From-SVN: r178059 |
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