Richard James Fothergill 765109cde2 Extend constraints based mode analysis. ...

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Extend constraints based mode analysis.
Constraints on the producing and consuming goals for program
variables are now solved, and the solutions used for
conjunction reordering. The resulting HLDS is then thrown away,
after maybe being dumped (stage 33).

Extend dumping of mode analysis constraints.
Constraints are no longer dumped to file - they are displayed as
error messages when the --debug-mode-constraints is set. After
conjunction ordering, the original goal paths are printed in the
order they now appear.

compiler/options.m:
	Added the option described above, and some comments describing
	various mode constraint options.

compiler/check_hlds.m:
	Grouped ":- include_module"s for propagation solver
	constraints based mode analysis, and included
	new modules in this area - mcsolver and
	ordering_mode_constraints.

compiler/mode_constraints.m:
	Changes to the nature of constraint dumping - introduction
	of the use of --debug-mode-constraints.
	Introduction of conjunction ordering (call to module
	ordering_mode_constraints).

compiler/prop_mode_constraints.m:
	Changes to way constraints are dumped as described above.
	Changes to the way constraint variables are created -
	constraint variables can now be constructed as needed
	when the constraints are built.
	Structural changes to make constraint generation more
	natural (eg introduction of state variables, instead
	of use of functions).

compiler/abstract_mode_constraints.m:
	Changes to the way constraints are stored - the old
	speculative code became redundant with the introduction
	of rafe's solver (see mcsolver.m).
	New, specialised constraint generation predicates.
	Constraints are now created with a context attached,
	and space was left for adding other information.

compiler/build_mode_constraints.m:
	Changes to the way constraint variables are created -
	constraint variables can now be constructed as needed
	when the constraints are built.
	Structural changes to make constraint generation more
	natural (eg introduction of state variables, instead
	of use of functions).
	Constraints are now created with a context attached.

compiler/ordering_mode_constraints.m:
	New file. Uses solutions to the producer/consumer
	constraints to order conjunctions for mode analysis.
	Does not yet do mode inference.

compiler/mcsolver.m:
	New file. Written by rafe, modified by myself to
	accomodate the rest of the mode constraints branch
	(and a new constraint type). Solves mode constraints
	to produce bindings for constraint variables from
	producer/consumer analysis.

compiler/notes/compiler_design.html:
	Updated notes about constraints based mode analysis.

2006-02-02 00:38:30 +00:00

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.cvsignore

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.nocopyright

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allocation.html

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authors.html

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bootstrapping.html

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BUGS

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coding_standards.html

Mention that module imports from the analysis directory should be

2006-02-01 07:39:12 +00:00

compiler_design.html

Extend constraints based mode analysis.

2006-02-02 00:38:30 +00:00

ENVIRONMENT_VARS

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failure.html

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gc_and_c_code.html

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glossary.html

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IMPLICIT_QUANTIFICATION

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index.html

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macro_notes

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Mmakefile

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overall_design.html

Document the proper format of foreign_procs, and request no trailing

2005-03-31 00:51:56 +00:00

promise_ex.html

Fix some typos.

2004-10-11 08:40:05 +00:00

release_checklist.html

Clarify the entry about dealing with the commitlog file.

2005-09-12 09:35:14 +00:00

reviews.html

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todo.html

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trailing.html

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type_class_transformation.html

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TYPES

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upgrade_boehm_gc.html

Update the version of the boehm collector being used.

2005-10-03 12:53:09 +00:00

work_in_progress.html

Update compiler documentation on the main branch to take account of

2005-09-13 03:36:45 +00:00