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https://github.com/Mercury-Language/mercury.git
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ce18b43f9e
Estimated hours taken: 1 options: Divide --inlining into --inline-simple, for inlining all procedures with simple definitions (the curent practice), --inline-single-use for inlining all procedures called exactly once, and --inline-threshold for specifying an upper bound on the product of the number of calls and the size of the procedure definition (roughly the number of connectives). The --inline-single-use option is off by default until the problem with parse_dcg_goal_2 is fixed. inlining: Implement the new options. goal_util: Added a predicate for computing the size of a goal. mercury_compile: Call inlining if any one of three options is set. call_gen: Remove an obsolete comment (all of three hours old :-)
1200 lines
50 KiB
Mathematica
1200 lines
50 KiB
Mathematica
%-----------------------------------------------------------------------------%
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% Copyright (C) 1995 University of Melbourne.
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% This file may only be copied under the terms of the GNU General
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% Public License - see the file COPYING in the Mercury distribution.
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%-----------------------------------------------------------------------------%
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% File: options.m.
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% Main author: fjh.
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% This defines the stuff necessary so that getopt.m
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% can parse the command-line options.
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% IMPORTANT NOTE: any changes to the options should be
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% reflected in both the help message produced below,
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% and in the Mercury User's Guide (../doc/user_guide.texi).
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%-----------------------------------------------------------------------------%
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:- module options.
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:- interface.
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:- import_module bool, int, string, std_util, list, io, map, require, getopt.
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:- pred short_option(character::in, option::out) is semidet.
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:- pred long_option(string::in, option::out) is semidet.
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:- pred option_defaults(option::out, option_data::out) is nondet.
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:- pred special_handler(option::in, special_data::in, option_table::in,
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maybe_option_table::out) is semidet.
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:- pred options_help(io__state::di, io__state::uo) is det.
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:- type option_table == option_table(option).
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:- type maybe_option_table == maybe_option_table(option).
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:- type option
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% Warning options
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---> inhibit_warnings
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; halt_at_warn
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; halt_at_syntax_errors
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; warn_singleton_vars
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; warn_overlapping_scopes
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; warn_missing_det_decls
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; warn_det_decls_too_lax
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; warn_nothing_exported
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; warn_unused_args
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% Verbosity options
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; verbose
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; very_verbose
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; verbose_errors
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; statistics
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; debug_types
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; debug_modes
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; vndebug
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% Output options
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; make_interface
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; generate_dependencies
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; convert_to_mercury
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; convert_to_goedel
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; typecheck_only
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; errorcheck_only
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; compile_to_c
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; compile_only
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% Auxiliary output options
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; line_numbers
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; auto_comments
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; show_dependency_graph
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; dump_hlds
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; verbose_dump_hlds
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% Language semantics options
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; reorder_conj
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; reorder_disj
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; fully_strict
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; strict_sequential
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% Compilation Model options
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; grade
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; gcc_non_local_gotos
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; gcc_global_registers
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; asm_labels
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; gc
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; profiling
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; constraints
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; debug
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; debug_data
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; tags
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; num_tag_bits
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; bits_per_word
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; bytes_per_word
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; conf_low_tag_bits
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% The undocumented conf_low_tag_bits option
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% is used by the `mc' script to pass the
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% default value for num_tag_bits,
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% assuming --tags low.
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% The reason that `mc' doesn't just
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% pass a default value for --num-tag-bits
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% is that we want to be able to give an
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% error message if the user specifies
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% `--tags high' and doesn't specify
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% `--num-tag-bits'.
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; args
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; highlevel_c
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; unboxed_float
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% Code generation options
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; trad_passes
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; polymorphism
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; reclaim_heap_on_failure
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; reclaim_heap_on_semidet_failure
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; reclaim_heap_on_nondet_failure
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; lazy_code
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; use_macro_for_redo_fail
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; have_delay_slot
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; num_real_r_regs
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; num_real_temps
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; cc
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; cflags
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; cflags_for_regs
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; cflags_for_gotos
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; c_include_directory
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% Optimization Options
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; opt_level
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; opt_space % default is to optimize time
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% - HLDS
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; inline_simple
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; inline_single_use
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; inline_threshold
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; common_struct
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; common_goal
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; constraint_propagation
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; optimize_unused_args
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; optimize_higher_order
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; excess_assign
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; follow_code
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; prev_code
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; optimize_dead_procs
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% - HLDS->LLDS
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; smart_indexing
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; dense_switch_req_density
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; lookup_switch_req_density
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; dense_switch_size
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; lookup_switch_size
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; string_switch_size
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; tag_switch_size
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; static_ground_terms
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; middle_rec
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; simple_neg
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; follow_vars
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% - LLDS
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; optimize
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; optimize_peep
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; optimize_jumps
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; optimize_fulljumps
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; optimize_labels
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; optimize_dups
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%%% unused: ; optimize_copyprop
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; optimize_value_number
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; optimize_frames
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; optimize_delay_slot
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; optimize_repeat
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; optimize_vnrepeat
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; pred_value_number
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% - C
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; emit_c_loops
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; procs_per_c_function
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; everything_in_one_c_function
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; split_c_files
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; c_optimize
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% Link options
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; output_file_name
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; link_flags
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; link_library_directories
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; link_libraries
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; link_objects
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% Miscellaneous Options
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; builtin_module
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; heap_space
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; search_directories
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; help.
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:- implementation.
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:- import_module assoc_list.
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:- type option_category
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---> warning_option
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; verbosity_option
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; output_option
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; aux_output_option
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; language_semantics_option
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; compilation_model_option
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; code_gen_option
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; optimization_option
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; link_option
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; miscellaneous_option.
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option_defaults(Option, Default) :-
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option_defaults_2(_Category, OptionsList),
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list__member(Option - Default, OptionsList).
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:- pred option_defaults_2(option_category, list(pair(option, option_data))).
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:- mode option_defaults_2(in, out) is det.
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:- mode option_defaults_2(out, out) is multidet.
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:- mode option_defaults_2(in(bound(optimization_option)), out) is det.
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option_defaults_2(warning_option, [
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% Warning Options
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inhibit_warnings - bool(no),
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halt_at_warn - bool(no),
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halt_at_syntax_errors - bool(no),
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warn_singleton_vars - bool(yes),
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warn_overlapping_scopes - bool(yes),
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warn_missing_det_decls - bool(yes),
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warn_det_decls_too_lax - bool(yes),
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warn_nothing_exported - bool(yes),
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warn_unused_args - bool(no)
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]).
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option_defaults_2(verbosity_option, [
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% Verbosity Options
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verbose - bool(no),
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very_verbose - bool(no),
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verbose_errors - bool(no),
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statistics - bool(no),
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debug_types - bool(no),
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debug_modes - bool(no),
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vndebug - int(0)
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]).
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option_defaults_2(output_option, [
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% Output Options (mutually exclusive)
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generate_dependencies - bool(no),
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make_interface - bool(no),
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convert_to_mercury - bool(no),
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convert_to_goedel - bool(no),
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typecheck_only - bool(no),
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errorcheck_only - bool(no),
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compile_to_c - bool(no),
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compile_only - bool(no)
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]).
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option_defaults_2(aux_output_option, [
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% Auxiliary Output Options
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show_dependency_graph - bool(no),
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line_numbers - bool(no),
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auto_comments - bool(no),
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dump_hlds - accumulating([]),
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verbose_dump_hlds - bool(no)
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]).
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option_defaults_2(language_semantics_option, [
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strict_sequential - special,
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reorder_conj - bool(yes),
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reorder_disj - bool(yes),
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fully_strict - bool(yes)
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]).
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option_defaults_2(compilation_model_option, [
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% Compilation model options (ones that affect binary
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% compatibility).
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grade - string("asm_fast.gc"),
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% the `mc' script will override the
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% above default with a value determined
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% at configuration time
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gcc_non_local_gotos - bool(yes),
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gcc_global_registers - bool(yes),
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asm_labels - bool(yes),
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gc - string("conservative"),
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profiling - bool(no),
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constraints - bool(no),
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debug - bool(no),
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tags - string("low"),
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num_tag_bits - int(-1),
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% -1 is a special value which means
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% use the value of conf_low_tag_bits
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% instead
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bits_per_word - int(32),
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% A good default for the current
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% generation of architectures.
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bytes_per_word - int(4),
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% A good default for the current
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% generation of architectures.
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conf_low_tag_bits - int(2),
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% the `mc' script will override the
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% above default with a value determined
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% at configuration time
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args - string("simple"),
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highlevel_c - bool(no),
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unboxed_float - bool(no)
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]).
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option_defaults_2(code_gen_option, [
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% Code Generation Options
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trad_passes - bool(yes),
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polymorphism - bool(yes),
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lazy_code - bool(yes),
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reclaim_heap_on_failure - bool_special,
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reclaim_heap_on_semidet_failure - bool(yes),
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reclaim_heap_on_nondet_failure - bool(yes),
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use_macro_for_redo_fail - bool(no),
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have_delay_slot - bool(no),
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% the `mc' script may override the
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% above default if configure says
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% the machine has branch delay slots
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num_real_r_regs - int(5),
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num_real_temps - int(5),
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% the `mc' script will override the
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% above defaults with values determined
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% at configuration time
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cc - string("gcc"),
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% the `mc' script will override the
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% above default with a value determined
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% at configuration time
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cflags - accumulating([]),
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cflags_for_regs - string(""),
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cflags_for_gotos - string(""),
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% the `mc' script will override the
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% above two defaults with values
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% determined at configuration time
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c_include_directory - string(""),
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% the `mc' script will override the
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% above default with a value determined
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% at configuration time
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% split_c_files is really an optimization option,
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% but we list it here as a code_gen_option,
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% because we don't want `-O<n>' to turn it off.
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split_c_files - bool(no)
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]).
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option_defaults_2(optimization_option, [
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% Optimization options
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%
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% IMPORTANT: the default here should be all optimizations OFF.
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% Optimizations should be enabled by the appropriate
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% optimization level in the opt_level table.
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%
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opt_level - int_special,
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opt_space - special,
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% HLDS
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inline_simple - bool(no),
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inline_single_use - bool(no),
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inline_threshold - int(0),
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common_struct - bool(no),
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common_goal - bool(yes),
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% commmon_goal is not really an optimization, since
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% it affects the semantics
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constraint_propagation - bool(no),
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excess_assign - bool(no),
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prev_code - bool(no),
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follow_code - bool(no),
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optimize_unused_args - bool(no),
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optimize_higher_order - bool(no),
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optimize_dead_procs - bool(no),
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% HLDS -> LLDS
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smart_indexing - bool(no),
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dense_switch_req_density - int(25),
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% Minimum density before using a dense switch
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lookup_switch_req_density - int(25),
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% Minimum density before using a lookup switch
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dense_switch_size - int(4),
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lookup_switch_size - int(4),
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string_switch_size - int(8),
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tag_switch_size - int(3),
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static_ground_terms - bool(no),
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middle_rec - bool(no),
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simple_neg - bool(no),
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follow_vars - bool(no),
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% LLDS
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optimize - bool(no),
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optimize_peep - bool(no),
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optimize_jumps - bool(no),
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optimize_fulljumps - bool(no),
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optimize_labels - bool(no),
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optimize_dups - bool(no),
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%%% optimize_copyprop - bool(no),
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optimize_value_number - bool(no),
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optimize_frames - bool(no),
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optimize_delay_slot - bool(no),
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optimize_repeat - int(0),
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optimize_vnrepeat - int(0),
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pred_value_number - bool(no),
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% LLDS -> C
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emit_c_loops - bool(no),
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procs_per_c_function - int(1),
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everything_in_one_c_function - special,
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c_optimize - bool(no)
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]).
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option_defaults_2(link_option, [
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% Link Options
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output_file_name - string(""),
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% if the output_file_name is an empty
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% string, we use the name of the first
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% module on the command line
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link_flags - accumulating([]),
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link_library_directories - accumulating([]),
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link_libraries - accumulating([]),
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link_objects - accumulating([])
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]).
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option_defaults_2(miscellaneous_option, [
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% Miscellaneous Options
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builtin_module - string("mercury_builtin"),
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heap_space - int(0),
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search_directories - accumulating(["."]),
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help - bool(no)
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]).
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% please keep this in alphabetic order
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short_option('c', compile_only).
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short_option('C', compile_to_c).
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short_option('d', dump_hlds).
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short_option('D', verbose_dump_hlds).
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short_option('e', errorcheck_only).
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short_option('E', verbose_errors).
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short_option('G', convert_to_goedel).
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short_option('h', help).
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short_option('i', make_interface).
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short_option('I', search_directories).
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short_option('l', link_libraries).
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short_option('L', link_library_directories).
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short_option('M', generate_dependencies).
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short_option('N', debug_modes).
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short_option('n', line_numbers).
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short_option('o', output_file_name).
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short_option('O', opt_level).
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short_option('p', profiling).
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short_option('P', convert_to_mercury).
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short_option('s', grade).
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short_option('S', statistics).
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short_option('T', debug_types).
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short_option('t', typecheck_only).
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short_option('v', verbose).
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short_option('V', very_verbose).
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short_option('w', inhibit_warnings).
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short_option('?', help).
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% warning options
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long_option("inhibit-warnings", inhibit_warnings).
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long_option("halt-at-warn", halt_at_warn).
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long_option("halt-at-syntax-errors", halt_at_syntax_errors).
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long_option("warn-singleton-variables", warn_singleton_vars).
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long_option("warn-overlapping-scopes", warn_overlapping_scopes).
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long_option("warn-missing-det-decls", warn_missing_det_decls).
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long_option("warn-det-decls-too-lax", warn_det_decls_too_lax).
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long_option("warn-nothing-exported", warn_nothing_exported).
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long_option("warn-unused-args", warn_unused_args).
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% verbosity options
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long_option("verbose", verbose).
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long_option("very-verbose", very_verbose).
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long_option("verbose-error-messages", verbose_errors).
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long_option("statistics", statistics).
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long_option("debug-types", debug_types).
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long_option("debug-modes", debug_modes).
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long_option("vndebug", vndebug).
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% output options (mutually exclusive)
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long_option("generate-dependencies", generate_dependencies).
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long_option("make-interface", make_interface).
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long_option("convert-to-mercury", convert_to_mercury).
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long_option("convert-to-Mercury", convert_to_mercury).
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long_option("pretty-print", convert_to_mercury).
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long_option("convert-to-goedel", convert_to_goedel).
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long_option("convert-to-Goedel", convert_to_goedel).
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long_option("typecheck-only", typecheck_only).
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long_option("errorcheck-only", errorcheck_only).
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long_option("compile-to-c", compile_to_c).
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long_option("compile-to-C", compile_to_c).
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long_option("compile-only", compile_only).
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% aux output options
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long_option("auto-comments", auto_comments).
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long_option("line-numbers", line_numbers).
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long_option("show-dependency-graph", show_dependency_graph).
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long_option("dump-hlds", dump_hlds).
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long_option("verbose-dump-hlds", verbose_dump_hlds).
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% language semantics options
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long_option("reorder-conj", reorder_conj).
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long_option("reorder-disj", reorder_disj).
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long_option("fully-strict", fully_strict).
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long_option("strict-sequential", strict_sequential).
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% compilation model options
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long_option("grade", grade).
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long_option("gcc-non-local-gotos", gcc_non_local_gotos).
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long_option("gcc-global-registers", gcc_global_registers).
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long_option("asm-labels", asm_labels).
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long_option("gc", gc).
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long_option("garbage-collection", gc).
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long_option("profiling", profiling).
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long_option("debug", debug).
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long_option("tags", tags).
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long_option("num-tag-bits", num_tag_bits).
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long_option("bits-per-word", bits_per_word).
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long_option("bytes-per-word", bytes_per_word).
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long_option("conf-low-tag-bits", conf_low_tag_bits).
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long_option("args", args).
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long_option("arg-convention", args).
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long_option("highlevel-C", highlevel_c).
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|
long_option("highlevel-c", highlevel_c).
|
|
long_option("high-level-C", highlevel_c).
|
|
long_option("high-level-c", highlevel_c).
|
|
long_option("single-prec-float", unboxed_float).
|
|
long_option("unboxed-float", unboxed_float).
|
|
|
|
% code generation options
|
|
long_option("polymorphism", polymorphism).
|
|
long_option("trad-passes", trad_passes).
|
|
long_option("lazy-code", lazy_code).
|
|
long_option("reclaim-heap-on-failure", reclaim_heap_on_failure).
|
|
long_option("reclaim-heap-on-semidet-failure",
|
|
reclaim_heap_on_semidet_failure).
|
|
long_option("reclaim-heap-on-nondet-failure",
|
|
reclaim_heap_on_nondet_failure).
|
|
long_option("use-macro-for-redo-fail", use_macro_for_redo_fail).
|
|
long_option("branch-delay-slot", have_delay_slot).
|
|
long_option("have-delay-slot", have_delay_slot).
|
|
long_option("num-real-r-regs", num_real_r_regs).
|
|
long_option("num-real-temps", num_real_temps).
|
|
long_option("cc", cc).
|
|
long_option("cflags", cflags).
|
|
long_option("cflags-for-regs", cflags_for_regs).
|
|
long_option("cflags-for-gotos", cflags_for_gotos).
|
|
long_option("c-include-directory", c_include_directory).
|
|
|
|
% optimization options
|
|
|
|
long_option("opt-level", opt_level).
|
|
long_option("optimization-level", opt_level).
|
|
long_option("optimisation-level", opt_level).
|
|
long_option("opt-space", opt_space).
|
|
long_option("optimize-space", opt_space).
|
|
long_option("optimise-space", opt_space).
|
|
|
|
% HLDS->HLDS optimizations
|
|
long_option("inline-simple", inline_simple).
|
|
long_option("inline-single-use", inline_single_use).
|
|
long_option("inline-threshold", inline_threshold).
|
|
long_option("common-struct", common_struct).
|
|
long_option("common-goal", common_goal).
|
|
long_option("excess-assign", excess_assign).
|
|
long_option("prev-code", prev_code).
|
|
long_option("follow-code", follow_code).
|
|
long_option("constraint-propagation", constraint_propagation).
|
|
long_option("optimize-unused-args", optimize_unused_args).
|
|
long_option("optimise-unused-args", optimize_unused_args).
|
|
long_option("optimize-higher-order", optimize_higher_order).
|
|
long_option("optimise-higher-order", optimize_higher_order).
|
|
long_option("optimize-dead-procs", optimize_dead_procs).
|
|
long_option("optimise-dead-procs", optimize_dead_procs).
|
|
|
|
% HLDS->LLDS optimizations
|
|
long_option("smart-indexing", smart_indexing).
|
|
long_option("dense-switch-req-density", dense_switch_req_density).
|
|
long_option("lookup-switch-req-density",lookup_switch_req_density).
|
|
long_option("dense-switch-size", dense_switch_size).
|
|
long_option("lookup-switch-size", lookup_switch_size).
|
|
long_option("string-switch-size", string_switch_size).
|
|
long_option("tag-switch-size", tag_switch_size).
|
|
long_option("static-ground-terms", static_ground_terms).
|
|
long_option("middle-rec", middle_rec).
|
|
long_option("simple_neg", simple_neg).
|
|
long_option("follow-vars", follow_vars).
|
|
|
|
% LLDS optimizations
|
|
long_option("llds-optimize", optimize).
|
|
long_option("llds-optimise", optimize).
|
|
long_option("optimize-peep", optimize_peep).
|
|
long_option("optimise-peep", optimize_peep).
|
|
long_option("optimize-jumps", optimize_jumps).
|
|
long_option("optimise-jumps", optimize_jumps).
|
|
long_option("optimize-fulljumps", optimize_fulljumps).
|
|
long_option("optimise-fulljumps", optimize_fulljumps).
|
|
long_option("optimize-labels", optimize_labels).
|
|
long_option("optimise-labels", optimize_labels).
|
|
long_option("optimize-dups", optimize_dups).
|
|
long_option("optimise-dups", optimize_dups).
|
|
%%% long_option("optimize-copyprop", optimize_copyprop).
|
|
%%% long_option("optimise-copyprop", optimize_copyprop).
|
|
long_option("optimize-value-number", optimize_value_number).
|
|
long_option("optimise-value-number", optimize_value_number).
|
|
long_option("optimize-frames", optimize_frames).
|
|
long_option("optimise-frames", optimize_frames).
|
|
long_option("optimize-delay-slot", optimize_delay_slot).
|
|
long_option("optimise-delay-slot", optimize_delay_slot).
|
|
long_option("optimize-repeat", optimize_repeat).
|
|
long_option("optimise-repeat", optimize_repeat).
|
|
long_option("optimize-vnrepeat", optimize_vnrepeat).
|
|
long_option("optimise-vnrepeat", optimize_vnrepeat).
|
|
long_option("pred-value-number", pred_value_number).
|
|
|
|
% LLDS->C optimizations
|
|
long_option("emit-c-loops", emit_c_loops).
|
|
long_option("procs-per-c-function", procs_per_c_function).
|
|
long_option("procs-per-C-function", procs_per_c_function).
|
|
long_option("everything-in-one-c-function", everything_in_one_c_function).
|
|
long_option("everything-in-one-C-function", everything_in_one_c_function).
|
|
long_option("split-c-files", split_c_files).
|
|
long_option("split-C-files", split_c_files).
|
|
long_option("c-optimise", c_optimize).
|
|
long_option("c-optimize", c_optimize).
|
|
|
|
% link options
|
|
long_option("output-file", output_file_name).
|
|
long_option("link-flags", link_flags).
|
|
long_option("library-directory", link_library_directories).
|
|
long_option("library", link_libraries).
|
|
long_option("link-object", link_objects).
|
|
|
|
% misc options
|
|
long_option("help", help).
|
|
long_option("heap-space", heap_space).
|
|
long_option("builtin-module", builtin_module).
|
|
long_option("search-directory", search_directories).
|
|
|
|
%-----------------------------------------------------------------------------%
|
|
|
|
special_handler(everything_in_one_c_function, none, OptionTable0,
|
|
ok(OptionTable)) :-
|
|
map__set(OptionTable0, procs_per_c_function, int(0),
|
|
OptionTable).
|
|
special_handler(reclaim_heap_on_failure, bool(Value), OptionTable0,
|
|
ok(OptionTable)) :-
|
|
map__set(OptionTable0, reclaim_heap_on_semidet_failure, bool(Value),
|
|
OptionTable1),
|
|
map__set(OptionTable1, reclaim_heap_on_nondet_failure, bool(Value),
|
|
OptionTable).
|
|
special_handler(strict_sequential, none, OptionTable0, ok(OptionTable)) :-
|
|
override_options([
|
|
reorder_conj - bool(no),
|
|
reorder_disj - bool(no),
|
|
fully_strict - bool(yes)
|
|
], OptionTable0, OptionTable).
|
|
special_handler(opt_space, none, OptionTable0, ok(OptionTable)) :-
|
|
opt_space(OptionSettingsList),
|
|
override_options(OptionSettingsList, OptionTable0, OptionTable).
|
|
special_handler(opt_level, int(N0), OptionTable0, ok(OptionTable)) :-
|
|
( N0 > 6 ->
|
|
N = 6
|
|
; N0 < -1 ->
|
|
N = -1
|
|
;
|
|
N = N0
|
|
),
|
|
set_opt_level(N, OptionTable0, OptionTable).
|
|
|
|
:- pred set_opt_level(int, option_table, option_table).
|
|
:- mode set_opt_level(in, in, out) is det.
|
|
|
|
set_opt_level(N, OptionTable0, OptionTable) :-
|
|
%
|
|
% first reset all optimizations to their default
|
|
% (the default should be all optimizations off)
|
|
%
|
|
option_defaults_2(optimization_option, OptimizationDefaults),
|
|
override_options(OptimizationDefaults, OptionTable0, OptionTable1),
|
|
%
|
|
% next enable the optimization levels from 0 up to N.
|
|
%
|
|
enable_opt_levels(0, N, OptionTable1, OptionTable).
|
|
|
|
:- pred enable_opt_levels(int, int, option_table, option_table).
|
|
:- mode enable_opt_levels(in, in, in, out) is det.
|
|
|
|
enable_opt_levels(N0, N, OptionTable0, OptionTable) :-
|
|
( N0 > N ->
|
|
OptionTable = OptionTable0
|
|
; opt_level(N0, OptionTable0, OptionSettingsList) ->
|
|
override_options(OptionSettingsList, OptionTable0,
|
|
OptionTable1),
|
|
N1 is N0 + 1,
|
|
enable_opt_levels(N1, N, OptionTable1, OptionTable)
|
|
;
|
|
error("Unknown optimization level")
|
|
).
|
|
|
|
:- pred override_options(list(pair(option, option_data)),
|
|
option_table, option_table).
|
|
:- mode override_options(in, in, out) is det.
|
|
|
|
override_options([], OptionTable, OptionTable).
|
|
override_options([Option - Value | Settings], OptionTable0, OptionTable) :-
|
|
map__set(OptionTable0, Option, Value, OptionTable1),
|
|
override_options(Settings, OptionTable1, OptionTable).
|
|
|
|
%-----------------------------------------------------------------------------%
|
|
|
|
:- pred opt_space(list(pair(option, option_data))::out) is det.
|
|
|
|
opt_space([
|
|
optimize_dead_procs - bool(yes),
|
|
optimize_fulljumps - bool(no),
|
|
optimize_labels - bool(yes),
|
|
optimize_dups - bool(yes)
|
|
]).
|
|
|
|
%-----------------------------------------------------------------------------%
|
|
|
|
:- pred opt_level(int::in, option_table::in,
|
|
list(pair(option, option_data))::out) is semidet.
|
|
|
|
% Optimization level -1:
|
|
% Generate totally unoptimized code; turns off ALL optimizations that
|
|
% can be turned off, including HLDS->HLDS, HLDS->LLDS, LLDS->LLDS, LLDS->C,
|
|
% and C->object optimizations.
|
|
% (However, there are some optimizations that can't be disabled.)
|
|
|
|
% Optimization level 0: aim to minimize overall compilation time.
|
|
% XXX I just guessed. We should run lots of experiments.
|
|
|
|
opt_level(0, _, [
|
|
optimize - bool(yes),
|
|
optimize_repeat - int(1),
|
|
optimize_peep - bool(yes),
|
|
static_ground_terms - bool(yes),
|
|
smart_indexing - bool(yes),
|
|
excess_assign - bool(yes) % ???
|
|
% jumps?
|
|
% labels?
|
|
]).
|
|
|
|
% Optimization level 1: apply optimizations which are cheap and
|
|
% have a good payoff while still keeping compilation time small
|
|
|
|
opt_level(1, OptionTable, [
|
|
c_optimize - bool(yes), % XXX we want `gcc -O1'
|
|
optimize_jumps - bool(yes),
|
|
optimize_labels - bool(yes),
|
|
optimize_frames - bool(yes),
|
|
optimize_delay_slot - bool(DelaySlot),
|
|
middle_rec - bool(yes),
|
|
follow_code - bool(yes),
|
|
emit_c_loops - bool(yes)
|
|
% dups?
|
|
]) :-
|
|
getopt__lookup_bool_option(OptionTable, have_delay_slot, DelaySlot).
|
|
|
|
% Optimization level 2: apply optimizations which have a good
|
|
% payoff relative to their cost; but include optimizations
|
|
% which are more costly than with -O1
|
|
|
|
opt_level(2, _, [
|
|
optimize_fulljumps - bool(yes),
|
|
optimize_repeat - int(3),
|
|
optimize_dups - bool(yes),
|
|
follow_code - bool(yes),
|
|
inline_simple - bool(yes),
|
|
inline_single_use - bool(no), % yes when the problem
|
|
% caused by inlining
|
|
% parse_dcg_goal is
|
|
% solved.
|
|
inline_threshold - int(10),
|
|
common_struct - bool(yes),
|
|
simple_neg - bool(yes)
|
|
]).
|
|
|
|
% Optimization level 3: apply optimizations which usually have a good
|
|
% payoff even if they increase compilation time quite a bit
|
|
|
|
opt_level(3, _, [
|
|
optimize_value_number - bool(yes),
|
|
optimize_dead_procs - bool(yes),
|
|
%%% optimize_copyprop - bool(yes),
|
|
optimize_unused_args - bool(yes),
|
|
optimize_higher_order - bool(yes),
|
|
optimize_repeat - int(4),
|
|
optimize_vnrepeat - int(1)
|
|
]).
|
|
|
|
% Optimization level 4: apply optimizations which may have some
|
|
% payoff even if they increase compilation time quite a bit
|
|
|
|
% Currently this just enables pred_value_number
|
|
|
|
opt_level(4, _, [
|
|
pred_value_number - bool(yes)
|
|
]).
|
|
|
|
% Optimization level 5: apply optimizations which may have some
|
|
% payoff even if they increase compilation time a lot
|
|
|
|
% Currently this just runs a second pass of value numbering
|
|
|
|
opt_level(5, _, [
|
|
optimize_repeat - int(5),
|
|
optimize_vnrepeat - int(2)
|
|
]).
|
|
|
|
% Optimization level 6: apply optimizations which may have any
|
|
% payoff even if they increase compilation time to completely
|
|
% unreasonable levels
|
|
|
|
% Currently this just sets `everything_in_one_c_function', which causes
|
|
% the compiler to put everything in the one C function and treat
|
|
% calls to predicates in the same module as local.
|
|
|
|
opt_level(6, _, [
|
|
procs_per_c_function - int(0) % everything in one C function
|
|
]).
|
|
|
|
%-----------------------------------------------------------------------------%
|
|
|
|
options_help -->
|
|
io__write_string("\t-?, -h, --help\n"),
|
|
io__write_string("\t\tPrint this usage message.\n"),
|
|
|
|
io__write_string("\nWarning Options:\n"),
|
|
io__write_string("\t-w, --inhibit-warnings\n"),
|
|
io__write_string("\t\tDisable all warning messages.\n"),
|
|
io__write_string("\t--halt-at-warn\n"),
|
|
io__write_string("\t\tThis option causes the compiler to treat all \n"),
|
|
io__write_string("\t\twarnings as if they were errors. This means that\n"),
|
|
io__write_string("\t\tif any warning is issued, the compiler will not\n"),
|
|
io__write_string("\t\tgenerate code --- instead, it will return a\n"),
|
|
io__write_string("\t\tnon-zero exit status.\n"),
|
|
io__write_string("\t--halt-at-syntax-errors\n"),
|
|
io__write_string("\t\tThis option causes the compiler to halt immediately\n"),
|
|
io__write_string("\t\tafter syntax checking and not do any semantic checking\n"),
|
|
io__write_string("\t\tif it finds any syntax errors in the program.\n"),
|
|
io__write_string("\t--no-warn-singleton-variables\n"),
|
|
io__write_string("\t\tDon't warn about variables which only occur once.\n"),
|
|
io__write_string("\t--no-warn-overlapping-scopes\n"),
|
|
io__write_string("\t\tDon't warn about variables which occur in overlapping scopes.\n"),
|
|
io__write_string("\t--no-warn-missing-det-decls\n"),
|
|
io__write_string("\t\tDon't warn about predicate declarations which don't\n"),
|
|
io__write_string("\t\thave a determinism annotation.\n"),
|
|
io__write_string("\t--no-warn-det-decls-too-lax\n"),
|
|
io__write_string("\t\tDon't warn about determinism declarations\n"),
|
|
io__write_string("\t\twhich could have been stricter.\n"),
|
|
io__write_string("\t--no-warn-nothing-exported\n"),
|
|
io__write_string("\t\tDon't warn about modules which export nothing.\n"),
|
|
io__write_string("\t--warn-unused-args\n"),
|
|
io__write_string("\t\tWarn about predicate arguments which are not used.\n"),
|
|
|
|
io__write_string("\nVerbosity Options:\n"),
|
|
io__write_string("\t-v, --verbose\n"),
|
|
io__write_string("\t\tOutput progress messages at each stage in the compilation.\n"),
|
|
io__write_string("\t-V, --very_verbose\n"),
|
|
io__write_string("\t\tOutput very verbose progress messages.\n"),
|
|
io__write_string("\t-E, --verbose-error-messages\n"),
|
|
io__write_string("\t\tExplain error messages. Asks the compiler to give you a more\n"),
|
|
io__write_string("\t\tdetailed explanation of any errors it finds in your program.\n"),
|
|
io__write_string("\t-S, --statistics\n"),
|
|
io__write_string("\t\tOutput messages about the compiler's time/space usage.\n"),
|
|
io__write_string("\t\tAt the moment this option implies --no-trad-passes, so you get\n"),
|
|
io__write_string("\t\tinformation at the boundaries between phases of the compiler.\n"),
|
|
io__write_string("\t-T, --debug-types\n"),
|
|
io__write_string("\t\tOutput detailed debugging traces of the type checking.\n"),
|
|
io__write_string("\t-N, --debug-modes\n"),
|
|
io__write_string("\t\tOutput detailed debugging traces of the mode checking.\n"),
|
|
io__write_string("\t--vndebug <n>\n"),
|
|
io__write_string("\t\tOutput detailed debugging traces of the value numbering\n"),
|
|
io__write_string("\t\toptimization pass. The different bits in the number\n"),
|
|
io__write_string("\t\targument of this option control the printing of\n"),
|
|
io__write_string("\t\tdifferent types of tracing messages.\n"),
|
|
|
|
io__write_string("\nOutput Options:\n"),
|
|
io__write_string("\tThese options are mutually exclusive.\n"),
|
|
io__write_string("\tOnly the first one specified will apply.\n"),
|
|
io__write_string("\tIf none of these options are specified, the default action\n"),
|
|
io__write_string("\tis to link the named modules to produce an executable.\n\n"),
|
|
io__write_string("\t-M, --generate-dependencies\n"),
|
|
io__write_string("\t\tOutput `Make'-style dependencies for the module\n"),
|
|
io__write_string("\t\tand all of its dependencies to `<module>.dep'.\n"),
|
|
io__write_string("\t-i, --make-interface\n"),
|
|
io__write_string("\t\tWrite the module interface to `<module>.int'.\n"),
|
|
io__write_string("\t\tAlso write the short interface to `<module>.int2'.\n"),
|
|
io__write_string("\t-G, --convert-to-goedel\n"),
|
|
io__write_string("\t\tConvert to Goedel. Output to file `<module>.loc'.\n"),
|
|
io__write_string("\t\tNote that some Mercury language constructs cannot\n"),
|
|
io__write_string("\t\t(easily) be translated into Goedel.\n"),
|
|
io__write_string("\t-P, --convert-to-mercury\n"),
|
|
io__write_string("\t\tConvert to Mercury. Output to file `<module>.ugly'\n"),
|
|
io__write_string("\t\tThis option acts as a Mercury ugly-printer.\n"),
|
|
io__write_string("\t-t, --typecheck-only\n"),
|
|
io__write_string("\t\tJust check that the code is syntactically correct and\n"),
|
|
io__write_string("\t\ttype-correct. Don't check modes or determinism,\n"),
|
|
io__write_string("\t\tand don't generate any code.\n"),
|
|
io__write_string("\t-e, --errorcheck-only\n"),
|
|
io__write_string("\t\tCheck the module for errors, but do not generate any code.\n"),
|
|
io__write_string("\t-C, --compile-to-c\n"),
|
|
io__write_string("\t\tGenerate C code in `<module>.c', but not object code.\n"),
|
|
io__write_string("\t-c, --compile-only\n"),
|
|
io__write_string("\t\tGenerate C code in `<module>.c' and object code in `<module>.o'\n"),
|
|
io__write_string("\t\tbut do not attempt to link the named modules.\n"),
|
|
|
|
io__write_string("\n Auxiliary Output Options:\n"),
|
|
io__write_string("\t--auto-comments\n"),
|
|
io__write_string("\t\tOutput comments in the `<module>.c' file.\n"),
|
|
io__write_string("\t\t(The code may be easier to understand if you also\n"),
|
|
io__write_string("\t\tuse the `--no-llds-optimize' option.)\n"),
|
|
io__write_string("\t-l, --line-numbers\n"),
|
|
io__write_string("\t\tOutput line numbers in the generated code.\n"),
|
|
io__write_string("\t\tOnly works with the -G and -P options.\n"),
|
|
io__write_string("\t--show-dependency-graph\n"),
|
|
io__write_string("\t\tWrite out the dependency graph to `<module>.dependency_graph'.\n"),
|
|
io__write_string("\t-d <n>, --dump-hlds <stage number or name>\n"),
|
|
io__write_string("\t\tDump the HLDS (intermediate representation) after\n"),
|
|
io__write_string("\t\tthe specified stage to `<module>.hlds_dump.<num>-<name>'.\n"),
|
|
io__write_string("\t\tStage numbers range from 1-19.\n"),
|
|
io__write_string("\t\tMultiple dump options accumulate.\n"),
|
|
io__write_string("\t-D, --verbose-dump-hlds\n"),
|
|
io__write_string("\t\tWith --dump-hlds, dumps some additional info.\n"),
|
|
|
|
io__write_string("\nLanguage semantics options:\n"),
|
|
io__write_string("(See the Mercury language reference manual for detailed explanations.)\n"),
|
|
io__write_string("\t--no-reorder-conj\n"),
|
|
io__write_string("\t\tExecute conjunctions left-to-right except where the modes imply\n"),
|
|
io__write_string("\t\tthat reordering is unavoidable.\n"),
|
|
io__write_string("\t\tno-reorder-disj\n"),
|
|
io__write_string("\t\tExecute disjunctions strictly left-to-right.\n"),
|
|
io__write_string("\t\tfully-strict\n"),
|
|
io__write_string("\t\tDon't optimize away loops or calls to error/1.\n"),
|
|
|
|
io__write_string("\nCompilation model options:\n"),
|
|
io__write_string("\tThe following compilation options affect the generated\n"),
|
|
io__write_string("\tcode in such a way that the entire program must be\n"),
|
|
io__write_string("\tcompiled with the same setting of these options,\n"),
|
|
io__write_string("\tand it must be linked to a version of the Mercury\n"),
|
|
io__write_string("\tlibrary which has been compiled with the same setting.\n"),
|
|
io__write_string("\tRather than setting them individually, you must\n"),
|
|
io__write_string("\tspecify them all at once by selecting a particular\n"),
|
|
io__write_string("\tcompilation model (""grade"").\n\n"),
|
|
io__write_string("\t-s <grade>, --grade <grade>\n"),
|
|
io__write_string("\t\tSelect the compilation model. The <grade> should be one of\n"),
|
|
io__write_string("\t\t`debug', `none', `reg', `jump', `asm_jump', `fast', `asm_fast',\n"),
|
|
io__write_string("\t\tor one of those with `.gc', `.prof' or `.gc.prof' appended.\n"),
|
|
io__write_string("\t\tDepending on your particular installation, only a subset\n"),
|
|
io__write_string("\t\tof these possible grades will have been installed.\n"),
|
|
io__write_string("\t\tAttempting to use a grade which has not been installed\n"),
|
|
io__write_string("\t\twill result in an error at link time.\n"),
|
|
io__write_string("\t--gcc-global-registers\t"),
|
|
io__write_string("\t(grades: reg, fast, asm_fast)\n"),
|
|
io__write_string("\t--no-gcc-global-registers"),
|
|
io__write_string("\t(grades: debug, none, jump, asm_jump)\n"),
|
|
io__write_string("\t\tSpecify whether or not to use GNU C's\n"),
|
|
io__write_string("\t\tglobal register variables extension.\n"),
|
|
io__write_string("\t--gcc-non-local-gotos\t"),
|
|
io__write_string("\t(grades: jump, fast, asm_jump, asm_fast)\n"),
|
|
io__write_string("\t--no-gcc-non-local-gotos"),
|
|
io__write_string("\t(grades: debug, none, reg)\n"),
|
|
io__write_string("\t\tSpecify whether or not to use GNU C's\n"),
|
|
io__write_string("\t\t""labels as values"" extension.\n"),
|
|
io__write_string("\t--asm-labels\t\t"),
|
|
io__write_string("\t(grades: asm_jump, asm_fast)\n"),
|
|
io__write_string("\t--no-asm-labels\t\t"),
|
|
io__write_string("\t(grades: debug, none, reg, jump, fast)\n"),
|
|
io__write_string("\t\tSpecify whether or not to use GNU C's\n"),
|
|
io__write_string("\t\tasm extensions for inline assembler labels.\n"),
|
|
io__write_string("\t--gc {none, conservative, accurate}\n"),
|
|
io__write_string("\t--garbage-collection {none, conservative, accurate}\n"),
|
|
io__write_string("\t\t\t\t\t(`.gc' grades use `--gc conservative',\n"),
|
|
io__write_string("\t\t\t\t\tother grades use `--gc none'.)\n"),
|
|
io__write_string("\t\tSpecify which method of garbage collection to use\n"),
|
|
io__write_string("\t\t(default: conservative). `accurate' GC is not yet implemented.\n"),
|
|
io__write_string("\t--profiling\t\t"),
|
|
io__write_string("\t(grades: any grade ending in `.prof')\n"),
|
|
io__write_string("\t\tEnable profiling. Insert profiling hooks in the\n"),
|
|
io__write_string("\t\tgenerated code, and also output some profiling\n"),
|
|
io__write_string("\t\tinformation (the static call graph) to the file\n"),
|
|
io__write_string("\t\t`<module>.prof'.\n"),
|
|
%io__write_string("\t--constraints\n"),
|
|
%io__write_string("\t\tInterface with the CLP(R) constraint solver.\n"),
|
|
io__write_string("\t--debug\t\t\t"),
|
|
io__write_string("\t(grades: debug)\n"),
|
|
io__write_string("\t\tEnable debugging.\n"),
|
|
io__write_string("\t\tDebugging support is currently extremely primitive.\n"),
|
|
io__write_string("\t\tWe recommend that you use instead use `mnp' or `msp'.\n"),
|
|
io__write_string("\t\tSee the Mercury User's Guide for details.\n"),
|
|
io__write_string("\t--tags {none, low, high}"),
|
|
io__write_string("\t(This option is not for general use.)\n"),
|
|
io__write_string("\t\tSpecify whether to use the low bits or the high bits of \n"),
|
|
io__write_string("\t\teach word as tag bits (default: low).\n"),
|
|
% io__write_string("\t\t`--tags none' implies `--num-tag-bits 0'.\n"),
|
|
io__write_string("\t--num-tag-bits <n>\t"),
|
|
io__write_string("\t(This option is not for general use.)\n"),
|
|
io__write_string("\t\tUse <n> tag bits.\n"),
|
|
|
|
% The --conf-low-tag-bits option is reserved for use
|
|
% by the `mc' script; it is deliberately not documented.
|
|
|
|
% The --bits-per-word option is intended for use
|
|
% by the `mc' script; it is deliberately not documented.
|
|
|
|
% The --bytes-per-word option is intended for use
|
|
% by the `mc' script; it is deliberately not documented.
|
|
|
|
io__write_string("\t--branch-delay-slot\t"),
|
|
io__write_string("\t(This option is not for general use.)\n"),
|
|
io__write_string("\t\tAssume that branch instructions have a delay slot.\n"),
|
|
io__write_string("\t--num-real-r-regs <n>\t"),
|
|
io__write_string("\t(This option is not for general use.)\n"),
|
|
io__write_string("\t\tAssume registers r1 up to r<n> are real machine registers.\n"),
|
|
io__write_string("\t--num-real-temps <n>\t"),
|
|
io__write_string("\t(This option is not for general use.)\n"),
|
|
io__write_string("\t\tAssume that <n> temporaries will fit into\n"),
|
|
io__write_string("\t\treal machine registers.\n"),
|
|
io__write_string("\t--args {simple, compact}\n"),
|
|
io__write_string("\t--arg-convention {simple, compact}\n"),
|
|
io__write_string("\t\tUse the specified argument passing convention\n"),
|
|
io__write_string("\t\tin the generated low-level C code. With the `simple'\n"),
|
|
io__write_string("\t\tconvention, the <n>th argument is passed in or out\n"),
|
|
io__write_string("\t\tusing register r<n>. With the `compact' convention,\n"),
|
|
io__write_string("\t\tthe <n>th input argument is passed using register r<n>,\n"),
|
|
io__write_string("\t\tand the <n>th output argument is returned using\n"),
|
|
io__write_string("\t\tregister r<n>. The compact convention generally leads to\n"),
|
|
io__write_string("\t\tmore efficient code. However, currently only the simple\n"),
|
|
io__write_string("\t\tconvention is supported.\n"),
|
|
io__write_string("\t--single-prec-float\n"),
|
|
io__write_string("\t--unboxed-float\n"),
|
|
io__write_string("\t(This option is not for general use.)\n"),
|
|
io__write_string("\t\tUse unboxed single-precision floating point numbers,\n"),
|
|
io__write_string("\t\trather than boxed double-precision floats.\n"),
|
|
io__write_string("\t\t(The C code also needs to be compiled with\n"),
|
|
io__write_string("\t\t`-DUSE_SINGLE_PREC_FLOAT'.)\n"),
|
|
|
|
io__write_string("\nCode generation options:\n"),
|
|
io__write_string("\t--no-trad-passes\n"),
|
|
io__write_string("\t\tThe default --trad-passes completely processes each predicate\n"),
|
|
io__write_string("\t\tbefore going on to the next predicate.\n"),
|
|
io__write_string("\t\tThis option tells the compiler\n"),
|
|
io__write_string("\t\tto complete each phase of code generation on all predicates\n"),
|
|
io__write_string("\t\tbefore going on the next phase on all predicates.\n"),
|
|
% io__write_string("\t--no-polymorphism\n"),
|
|
% io__write_string("\t\tDon't handle polymorphic types.\n"),
|
|
% io__write_string("\t\t(Generates slightly more efficient code, but stops\n"),
|
|
% io__write_string("\t\tpolymorphism from working except in special cases.)\n"),
|
|
io__write_string("\t--no-reclaim-heap-on-nondet-failure\n"),
|
|
io__write_string("\t\tDon't reclaim heap on backtracking in nondet code.\n"),
|
|
io__write_string("\t--no-reclaim-heap-on-semidet-failure\n"),
|
|
io__write_string("\t\tDon't reclaim heap on backtracking in semidet code.\n"),
|
|
io__write_string("\t--no-reclaim-heap-on-failure\n"),
|
|
io__write_string("\t\tCombines the effect of the two options above.\n"),
|
|
io__write_string("\t--use-macro-for-redo-fail\n"),
|
|
io__write_string("\t\tEmit the fail or redo macro instead of a branch\n"),
|
|
io__write_string("\t\tto the fail or redo code in the runtime system.\n"),
|
|
io__write_string("\t--cc <compiler-name>\n"),
|
|
io__write_string("\t\tSpecify which C compiler to use.\n"),
|
|
io__write_string("\t--c-include-directory <dir>\n"),
|
|
io__write_string("\t\tSpecify the directory containing the Mercury C header files.\n"),
|
|
io__write_string("\t--cflags <options>\n"),
|
|
io__write_string("\t\tSpecify options to be passed to the C compiler.\n"),
|
|
|
|
io__write_string("\nOptimization Options:\n"),
|
|
io__write_string("\t-O <n>, --opt-level <n>, --optimization-level <n>\n"),
|
|
io__write_string("\t\tSet optimization level to <n>.\n"),
|
|
io__write_string("\t\tOptimization level 0 means no optimization\n"),
|
|
io__write_string("\t\twhile optimization level 6 means full optimization.\n"),
|
|
% io__write_string("\t\tFor a full description of each optimization level,\n"),
|
|
% io__write_string("\t\tsee the Mercury User's Guide.\n"),
|
|
io__write_string("\t--opt-space, --optimize-space\n"),
|
|
io__write_string("\t\tTurn on optimizations that reduce code size\n"),
|
|
io__write_string("\t\tand turn off optimizations that significantly\n"),
|
|
io__write_string("\t\tincrease code size.\n"),
|
|
|
|
io__write_string("\n High-level (HLDS->HLDS) optimizations:\n"),
|
|
io__write_string("\t--no-inline-simple\n"),
|
|
io__write_string("\t\tDisable the inlining of simple procedures.\n"),
|
|
io__write_string("\t--no-inline-single-use\n"),
|
|
io__write_string("\t\tDisable the inlining of procedures called only once.\n"),
|
|
io__write_string("\t--inline-threshold <threshold>\n"),
|
|
io__write_string("\t\tInline a procedure if its size (measured roughly\n"),
|
|
io__write_string("\t\tin terms of the number of connectives in its internal form),\n"),
|
|
io__write_string("\t\tmultiplied by the number of times it is called,\n"),
|
|
io__write_string("\t\tis below the given threshold.\n"),
|
|
io__write_string("\t--no-common-struct\n"),
|
|
io__write_string("\t\tDisable optimization of common term structures.\n"),
|
|
io__write_string("\t--no-common-goal\n"),
|
|
io__write_string("\t\tDisable optimization of common goals.\n"),
|
|
io__write_string("\t\tAt the moment this optimization\n"),
|
|
io__write_string("\t\tdetects only common deconstruction unifications.\n"),
|
|
io__write_string("\t\tDisabling this optimization reduces the class of predicates\n"),
|
|
io__write_string("\t\tthat the compiler considers to be deterministic.\n"),
|
|
% io__write_string("\t--constraint-propagation\n"),
|
|
% io__write_string("\t\tEnable the C-tranformation. (Doesn't work.)\n"),
|
|
io__write_string("\t--prev-code\n"),
|
|
io__write_string("\t\tMigrate into the start of branched goals.\n"),
|
|
io__write_string("\t--no-follow-code\n"),
|
|
io__write_string("\t\tDon't migrate into the end of branched goals.\n"),
|
|
io__write_string("\t--excess-assign\n"),
|
|
io__write_string("\t\tRemove excess assignment unifications.\n"),
|
|
io__write_string("\t--no-optimize-unused-args\n"),
|
|
io__write_string("\t\tDisable removal of unused predicate arguments.\n"),
|
|
io__write_string("\t\tThis will cause the compiler to generate less\n"),
|
|
io__write_string("\t\tefficient code for many polymorphic predicates.\n"),
|
|
io__write_string("\t--no-optimize-higher-order\n"),
|
|
io__write_string("\t\tDisable specialization of higher-order predicates.\n"),
|
|
|
|
io__write_string("\n Medium-level (HLDS->LLDS) optimizations:\n"),
|
|
io__write_string("\t--no-smart-indexing\n"),
|
|
io__write_string("\t\tGenerate switches as a simple if-then-else chains;\n"),
|
|
io__write_string("\t\tdisable string hashing and integer table-lookup indexing.\n"),
|
|
io__write_string("\t--dense-switch-req-density <percentage>\n"),
|
|
io__write_string("\t\tThe jump table generated for an atomic switch\n"),
|
|
io__write_string("\t\tmust have at least this percentage of full slots (default: 25).\n"),
|
|
io__write_string("\t--lookup-switch-req-density <percentage>\n"),
|
|
io__write_string("\t\tThe jump table generated for an atomic switch\n"),
|
|
io__write_string("\t\tin which all the outputs are constant terms\n"),
|
|
io__write_string("\t\tmust have at least this percentage of full slots (default: 25).\n"),
|
|
io__write_string("\t--dense-switch-size <n>\n"),
|
|
io__write_string("\t\tThe jump table generated for an atomic switch\n"),
|
|
io__write_string("\t\tmust have at least this many entries (default: 4).\n"),
|
|
io__write_string("\t--lookup-switch-size <n>\n"),
|
|
io__write_string("\t\tThe lookup table generated for an atomic switch\n"),
|
|
io__write_string("\t\tmust have at least this many entries (default: 4).\n"),
|
|
io__write_string("\t--string-switch-size <n>\n"),
|
|
io__write_string("\t\tThe hash table generated for a string switch\n"),
|
|
io__write_string("\t\tmust have at least this many entries (default: 8).\n"),
|
|
io__write_string("\t--tag-switch-size <n>\n"),
|
|
io__write_string("\t\tThe number of alternatives in a tag switch\n"),
|
|
io__write_string("\t\tmust be at least this number (default: 8).\n"),
|
|
io__write_string("\t--no-static-ground-terms\n"),
|
|
io__write_string("\t\tDisable the optimization of constructing constant ground terms\n"),
|
|
io__write_string("\t\tat compile time and storing them as static constants.\n"),
|
|
io__write_string("\t--no-middle-rec\n"),
|
|
io__write_string("\t\tDisable the middle recursion optimization.\n"),
|
|
io__write_string("\t--no-simple-neg\n"),
|
|
io__write_string("\t\tDon't generate simplified code for simple negations.\n"),
|
|
io__write_string("\t--no-follow-vars\n"),
|
|
io__write_string("\t\tDon't optimize the assignment of registers in branched goals.\n"),
|
|
|
|
io__write_string("\n Low-level (LLDS->LLDS) optimizations:\n"),
|
|
io__write_string("\t--no-llds-optimize\n"),
|
|
io__write_string("\t\tDisable the low-level optimization passes.\n"),
|
|
io__write_string("\t--optimize-dead-procs\n"),
|
|
io__write_string("\t\tEnable dead predicate elimination.\n"),
|
|
io__write_string("\t--no-optimize-peep\n"),
|
|
io__write_string("\t\tDisable local peephole optimizations.\n"),
|
|
io__write_string("\t--no-optimize-jumps\n"),
|
|
io__write_string("\t\tDisable elimination of jumps to jumps.\n"),
|
|
io__write_string("\t--no-optimize-fulljumps\n"),
|
|
io__write_string("\t\tDisable elimination of jumps to ordinary code.\n"),
|
|
io__write_string("\t--no-optimize-labels\n"),
|
|
io__write_string("\t\tDisable elimination of dead labels and code.\n"),
|
|
io__write_string("\t--optimize-dups\n"),
|
|
io__write_string("\t\tEnable elimination of duplicate code.\n"),
|
|
%%% io__write_string("\t--optimize-copyprop\n"),
|
|
%%% io__write_string("\t\tEnable the copy propagation optimization.\n"),
|
|
io__write_string("\t--optimize-value-number\n"),
|
|
io__write_string("\t\tPerform value numbering on extended basic blocks.\n"),
|
|
io__write_string("\t--no-optimize-frames\n"),
|
|
io__write_string("\t\tDisable stack frame optimizations.\n"),
|
|
io__write_string("\t--no-optimize-delay-slot\n"),
|
|
io__write_string("\t\tDisable branch delay slot optimizations.\n"),
|
|
io__write_string("\t--optimize-repeat <n>\n"),
|
|
io__write_string("\t\tIterate most optimizations at most <n> times (default: 3).\n"),
|
|
io__write_string("\t--optimize-vnrepeat <n>\n"),
|
|
io__write_string("\t\tIterate value numbering at most <n> times (default: 1).\n"),
|
|
% io__write_string("\t--pred-value-number\n"),
|
|
% io__write_string("\t\tExtend value numbering to entire predicates\n"),
|
|
|
|
io__write_string("\n Output-level (LLDS->C) optimizations:\n"),
|
|
io__write_string("\t--no-emit-c-loops\n"),
|
|
io__write_string("\t\tUse only gotos, don't emit C loop constructs.\n"),
|
|
io__write_string("\t--procs-per-c-function <n>\n"),
|
|
io__write_string("\t\tPut the code for up to <n> Mercury\n"),
|
|
io__write_string("\t\tprocedures in a single C function. The default\n"),
|
|
io__write_string("\t\tvalue of <n> is one. Increasing <n> can produce\n"),
|
|
io__write_string("\t\tslightly more efficient code, but makes compilation slower.\n"),
|
|
io__write_string("\t--everything-in-one-c-function\n"),
|
|
io__write_string("\t\tThis option has the effect of putting the code for all\n"),
|
|
io__write_string("\t\tthe Mercury procedures in a single C function,\n"),
|
|
io__write_string("\t\twhich produces the most efficient code but tends to\n"),
|
|
io__write_string("\t\tseverely stress the C compiler on large modules.\n"),
|
|
io__write_string("\t--split-c-files\n"),
|
|
io__write_string("\t\tGenerate each C function in its own C file,\n"),
|
|
io__write_string("\t\tso that the linker will optimize away unused code.\n"),
|
|
io__write_string("\t\tThis option significantly increases compilation time,\n"),
|
|
io__write_string("\t\tlink time, and intermediate disk space requirements,\n"),
|
|
io__write_string("\t\tbut in return reduces the size of the final\n"),
|
|
io__write_string("\t\texecutable, typically by about 10-20%.\n"),
|
|
io__write_string("\t\tThis option is only useful with `--procs-per-c-function 1'.\n"),
|
|
io__write_string("\t--no-c-optimize\n"),
|
|
io__write_string("\t\tDon't enable the C compiler's optimizations.\n"),
|
|
|
|
io__write_string("\nLink Options:\n"),
|
|
io__write_string("\t-o <filename>, --output-file <filename>\n"),
|
|
io__write_string("\t\tSpecify the name of the final executable.\n"),
|
|
io__write_string("\t\t(The default executable name is the same as the name\n"),
|
|
io__write_string("\t--link-flags <options>\n"),
|
|
io__write_string("\t\tSpecify options to be passed to the linker.\n"),
|
|
io__write_string("\t-L <directory>, --library-directory <directory>\n"),
|
|
io__write_string("\t\tAppend <directory> to the list of directories in which\n"),
|
|
io__write_string("\t\tto search for libraries.\n"),
|
|
io__write_string("\t-l <library>, --library <library>\n"),
|
|
io__write_string("\t\tLink with the specified library.\n"),
|
|
io__write_string("\t--link-object <object-file>\n"),
|
|
io__write_string("\t\tLink with the specified object file.\n"),
|
|
io__write_string("\t\tof the first module on the command line.)\n"),
|
|
|
|
io__write_string("\nMiscellaneous Options:\n"),
|
|
% io__write_string("\t-H <n>, --heap-space <n>\n"),
|
|
% io__write_string("\t\tPre-allocate <n> kilobytes of heap space.\n"),
|
|
% io__write_string("\t\tThis option is now obsolete. In the past it\n"),
|
|
% io__write_string("\t\twas used to avoid NU-Prolog's\n"),
|
|
% io__write_string("\t\t\t""Panic: growing stacks has required shifting the heap""\n"),
|
|
% io__write_string("\t\tmessage.\n"),
|
|
|
|
io__write_string("\t-b <builtin>, --builtin-module <builtin>\n"),
|
|
io__write_string("\t\tUse `<builtin>' instead of `mercury_builtin' as the \n\t\tmodule which always gets automatically imported.\n"),
|
|
io__write_string("\t-I <dir>, --search-directory <dir>\n"),
|
|
io__write_string("\t\tAdd <dir> to the list of directories to be searched for \n\t\timported modules.\n").
|
|
|
|
:- end_module options.
|
|
|
|
%-----------------------------------------------------------------------------%
|