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Packages are modules whose only job is to serve as a container for submodules. Modules like top_level.m, hlds.m, parse_tree.m and ll_backend.m are packages in this (informal) sense. Besides the include_module declarations for their submodules, most of the packages in the compiler used to import some modules, mostly other packages whose component modules their submodules may need. For example, ll_backend.m used to import parse_tree.m. This meant that modules in the ll_backend package did not have to import parse_tree.m before importing modules in the parse_tree package. However, this had a price. When we add a new module to the parse_tree package, parse_tree.int would change, and this would require the recompilation of ALL the modules in the ll_backend package, even the ones that did NOT import ANY of the modules in the parse_tree package. This happened even at one remove. Pretty much all modules in every one of the backend have to import one or more modules in the hlds package, and they therefore have import hlds.m. Since hlds.m imported transform_hlds.m, any addition of a new middle pass to the transform_hlds package required the recompilation of all backend modules, even in the usual case of the two having nothing to do with each other. This diff removes all import_module declarations from the packages, and replaces them with import_module declarations in the modules that need them. This includes only a SUBSET of their child modules and of the non-child modules that import them.
98 lines
3.3 KiB
Mathematica
98 lines
3.3 KiB
Mathematica
%-----------------------------------------------------------------------------%
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% vim: ft=mercury ts=4 sw=4 et
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%-----------------------------------------------------------------------------%
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% Copyright (C) 2002,2003-2008 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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% This package contains the low-level back-end
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% (a.k.a. the LLDS back-end).
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%
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:- module ll_backend.
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:- interface.
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%-----------------------------------------------------------------------------%
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% Pre-passes to transform or annotate the HLDS.
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:- include_module deep_profiling. % transform
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:- include_module coverage_profiling. % transform
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:- include_module saved_vars. % transform
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:- include_module stack_opt. % transform
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:- include_module follow_code. % transform
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:- include_module liveness. % annotate
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:- include_module stack_alloc. % annotate
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:- include_module live_vars. % annotate
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:- include_module follow_vars. % annotate
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:- include_module store_alloc. % annotate
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% The LLDS data structure itself.
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:- include_module llds.
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:- include_module code_util.
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% The HLDS->LLDS code generator.
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:- include_module proc_gen.
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:- include_module code_gen.
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:- include_module ite_gen.
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:- include_module call_gen.
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:- include_module disj_gen.
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:- include_module unify_gen.
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:- include_module commit_gen.
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:- include_module switch_gen.
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:- include_module dense_switch.
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:- include_module lookup_switch.
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:- include_module string_switch.
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:- include_module tag_switch.
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:- include_module switch_case.
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:- include_module pragma_c_gen.
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:- include_module par_conj_gen.
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:- include_module middle_rec.
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:- include_module trace_gen.
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:- include_module code_info.
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:- include_module code_loc_dep.
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:- include_module lookup_util.
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:- include_module exprn_aux.
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:- include_module continuation_info.
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:- include_module var_locn.
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% An alternative HLDS->LLDS code generator for fact tables.
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:- include_module fact_table.
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%:- module llds_data.
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:- include_module ll_pseudo_type_info.
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:- include_module layout.
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:- include_module stack_layout.
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:- include_module prog_rep.
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:- include_module prog_rep_tables.
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:- include_module global_data.
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%:- end_module llds_data.
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% LLDS->LLDS optimization passes.
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:- include_module optimize.
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:- include_module jumpopt.
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:- include_module dupelim.
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:- include_module dupproc.
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:- include_module frameopt.
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:- include_module delay_slot.
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:- include_module labelopt.
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:- include_module stdlabel.
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:- include_module peephole.
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:- include_module use_local_vars.
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:- include_module wrap_blocks.
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:- include_module livemap.
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:- include_module reassign.
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:- include_module basic_block.
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:- include_module opt_util.
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:- include_module opt_debug.
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% The LLDS->C output phase.
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:- include_module transform_llds.
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:- include_module llds_out.
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:- include_module layout_out.
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:- include_module rtti_out.
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%-----------------------------------------------------------------------------%
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:- end_module ll_backend.
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%-----------------------------------------------------------------------------%
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