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Estimated hours taken: 4 Branches: main Reduce the dependence of earlier parts of the compiler on the later ones. Unnecessary import_module declarations in top level modules such as hlds.m cause unnecessary recompilations when adding new types in later modules, such as submodules of ll_backend.m. This change reduces the number of such unnecessary imports. There are no changes in algorithms, only functionality being moved around. compiler/code_model.m: Change this module from being a submodule of backend_libs.m to being a submodule of hlds.m, since nothing in it is dependent on any backend. compiler/arg_info.m: compiler/code_util.m: Change arg_info.m from being a submodule of ll_backend.m to being a submodule of hlds.m, since most of it is applicable to all current and foreseeable backends. Move the one exported predicate that is ll_backend dependent, and its support predicates, to code_util.m. compiler/backend_libs.m: compiler/ll_backend.m: compiler/hlds.m: Update include_module declarations in accordance with the above. compiler/prog_data.m: compiler/term_util.m: Instead of defining two separate types for holding argument size and termination information, one including HLDS-specific information (in term_util.m) and one not (in prog_data.m), use a polymorphic type defined in prog_data.m and two monomorphic instances. compiler/termination.m: compiler/mercury_to_mercury.m: Change the predicates for writing out argument size and termination information to handle the polymorphic type (we don't need special handling of the monomorphic versions), and move them from termination.m to mercury_to_mercury.m, since this allows us to avoid some undesirable dependencies. compiler/base_typeclass_info.m: compiler/hlds_code_util.m: Move the predicate make_instance_string from base_typeclass_info.m to hlds_code_util.m, again because it allows us to remove some undesirable dependencies. compiler/top_level.m: compiler/backend_libs.m: compiler/check_hlds.m: compiler/hlds.m: compiler/ll_backend.m: compiler/parse_tree.m: compiler/transform_hlds.m: Delete some import_module declarations of other top level modules in these top level modules. Some imports were totally unnecessary. Some imports were useful in only a small minority of submodules; those submodules now import the necessary top level modules directly. Move remaining import_module declarations to the implementation section where this is feasible. Where we still need to import modules we ideally shouldn't, note why. compiler/*.m: Update imports of code_util and arg_info. In some cases, import top level modules no longer imported by the parent module. In some cases, delete unnecessary imports.
88 lines
2.8 KiB
Mathematica
88 lines
2.8 KiB
Mathematica
%-----------------------------------------------------------------------------%
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% Copyright (C) 2002-2004 The 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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%
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% The MLDS back-end.
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%
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% This package includes
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% - the MLDS data structure, which is an abstract
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% representation of a generic imperative language;
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% - the MLDS code generator, which converts HLDS to MLDS;
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% - the high-level C back-end, the Java back-end, the .NET back-end,
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% and a wrapper for the assembler back-end,
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% each of which convert MLDS to their respective target language.
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%
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% The main part of the assembler back-end, which converts MLDS
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% to GCC's internal abstract syntax trees and then invokes the
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% GCC back-end to convert this to assembler, is in a package of
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% its own, so that this package doesn't depend on the GCC back-end.
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%
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:- module ml_backend.
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:- interface.
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:- import_module hlds.
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:- import_module parse_tree.
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%-----------------------------------------------------------------------------%
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:- include_module mlds.
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:- include_module ml_util.
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% Phase 4-ml: MLDS-specific HLDS to HLDS transformations and annotations.
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:- include_module add_heap_ops.
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:- include_module add_trail_ops. % transformations
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:- include_module mark_static_terms. % annotation
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% Phase 5-ml: compile HLDS to MLDS
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:- include_module ml_code_gen.
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:- include_module ml_call_gen.
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:- include_module ml_closure_gen.
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:- include_module ml_switch_gen.
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:- include_module ml_simplify_switch.
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:- include_module ml_string_switch.
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:- include_module ml_tag_switch.
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:- include_module ml_type_gen.
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:- include_module ml_unify_gen.
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:- include_module ml_code_util.
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:- include_module rtti_to_mlds.
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% Phase 6-ml: MLDS -> MLDS transformations
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:- include_module ml_elim_nested.
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:- include_module ml_optimize.
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:- include_module ml_tailcall.
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% Phase 7-ml: compile MLDS to target code
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% MLDS->C back-end
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:- include_module mlds_to_c.
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% MLDS->Assembler back-end
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:- include_module maybe_mlds_to_gcc.
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% :- include_module mlds_to_gcc, gcc.
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% MLDS->Java back-end
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:- include_module mlds_to_java.
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:- include_module java_util.
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% MLDS->.NET CLR back-end
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:- include_module il_peephole.
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:- include_module ilasm.
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:- include_module ilds.
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:- include_module mlds_to_il.
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:- include_module mlds_to_ilasm.
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:- include_module mlds_to_managed.
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:- implementation.
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:- import_module backend_libs.
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:- import_module libs.
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:- import_module check_hlds. % is this needed?
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:- import_module transform_hlds. % is this needed?
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:- import_module aditi_backend. % need aditi_backend.rl_file
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:- end_module ml_backend.
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%-----------------------------------------------------------------------------%
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