Commit Graph

8 Commits

Author SHA1 Message Date
Zoltan Somogyi
59b11f84ce Update the debugger test directory.
Replace __ with . as the module qualifier symbol.

Replace references to io.state with just io.

Replace DCGs with state variables.

Replace (C->T;E) syntax for if-then-elses with (if C then T else E) syntax.

Replace if-then-elses with switches when possible and where this does not
affect what is being tested.

Replace separate pred and mode declarations with predmode declarations.

Put predicate and function declarations just before the definition
of the predicate or function.

Delete unneeded module qualifications on predicate and function declarations
and definitions.

Update .exp files (and if needed, .inp files) for the line number changes
that result from the above.

For tests that have more than one .exp file and where one of those files
is affected by the above, add a section to the source file header that says
which .exp file is for what grade, with XXXs for the (as yet) unknown parts.
2018-08-28 21:20:59 +10:00
Zoltan Somogyi
33eb3028f5 Clean up the tests in half the test directories.
tests/accumulator/*.m:
tests/analysis_*/*.m:
tests/benchmarks*/*.m:
tests/debugger*/*.{m,exp,inp}:
tests/declarative_debugger*/*.{m,exp,inp}:
tests/dppd*/*.m:
tests/exceptions*/*.m:
tests/general*/*.m:
tests/grade_subdirs*/*.m:
tests/hard_coded*/*.m:
    Make these tests use four-space indentation, and ensure that
    each module is imported on its own line. (I intend to use the latter
    to figure out which subdirectories' tests can be executed in parallel.)

    These changes usually move code to different lines. For the debugger tests,
    specify the new line numbers in .inp files and expect them in .exp files.
2015-02-14 20:14:03 +11:00
Zoltan Somogyi
74ce85d476 Provide a mechanism for collecting statistics about tabling operations,
Estimated hours taken: 60
Branches: main

Provide a mechanism for collecting statistics about tabling operations,
and provide a much more convenient mechanism for resetting tables.

Since it would too complex to do this while preserving the capability
of setting --tabling-via-extra-args to no, eliminate that capability
and the option. That option was useful only for measurements of the
performance boost from setting --tabling-via-extra-args to yes in any case,
so users lose no functionality.

Previously, the only way to debug the low level details of the tabling
mechanism was to build a runtime with a specific C macro (MR_TABLE_DEBUG)
and link with that runtime; this was cumbersome. Change that so that
every one of the debuggable tabling macros has a bool argument that says
whether debugging is enabled or not. The compiler can then set this to
MR_TRUE if the new option --table-debug is given, and to MR_FALSE otherwise.
If set to MR_FALSE, the C compiler should optimize away the debug code,
with zero impact on program size or speed.

Since these changes to macros require nontrivial bootstrapping, which we don't
want to do unnecessarily, modify the interface of the tabling macros as
required to support size limits on tables. This diff also implements the
parsing of size limit specifications on tables, but does not implement them
yet; that is for a future change.

To make the syntax simpler, this diff deletes the free-standing fast_loose_memo
pragma. The same functionality is now available with a fast_loose annotation
on an ordinary memo pragma.

Make a bunch of changes to improve readability and maintainability
in the process. These mostly take the form of renaming ambiguous and/or
not sufficiently expressive function symbols.

runtime/mercury_stack_layout.h:
runtime/mercury_tabling.h:
	Move the description of structure of tables from mercury_stack_layout.h
	to mercury_tabling.h, since we now need it for statistics even if
	execution tracing is not enabled.

	Modify those data structures to have room for the statistics.

	Don't distinguish "strict", "fast_loose" and "specified" memoing
	as separate eval methods; treat them as just different kinds
	of the same eval method: "memo".

	Remove underscores from the names of some types that the style guide
	says shouldn't be there.

runtime/mercury_tabling_preds.h:
runtime/mercury_tabling_macros.h:
	Modify the approach we use for macros that implement the predicates
	of library/table_builtin.m. Instead of selecting between debug and
	nondebug based on whether MR_TABLE_DEBUG is defined or not, add
	an explicit argument controlling this to each debuggable macro.
	The advantage of the new arrangement is that it scales. Another
	argument controls whether we are computing statistics (and if yes,
	where do we put it), and a third argument controls whether we maintain
	back links in the tries and hash tables (this last argument is present
	but is ignored for now).

	Since the values of the arguments will be known when the .c files
	containing calls to these macros are compiled, we pay the space and
	time cost of debugging, statistics gathering and the maintenance of
	back links if and only we need the revelant functionality.

	Provide macros for limited backward compatibility with the old set
	of macros; these allow workspaces created by old compilers to work
	with the new macros in the runtime. The old macros followed the
	naming scheme MR_table_*, the new ones are named MR_tbl_*.

runtime/mercury_table_int_fix_index_body.h:
runtime/mercury_table_int_start_index_body.h:
runtime/mercury_table_type_body.h:
	New files containing parts of the old mercury_tabling.c. Each of these
	files contains the body of the functions that used to be in
	mercury_tabling.c. The new mercury_tabling.c #includes each of these
	files more than once, to provide more than one variant of the old
	function. These variants differ in aspects such as whether debugging
	is enabled or statistics is being collected. Each variant therefore
	incurs only the time costs it needs to. (We pay the space cost of
	having all these variants all the time of course, but this cost
	is negligible.)

runtime/mercury_tabling_stats_defs.h:
runtime/mercury_tabling_stats_nodefs.h:
runtime/mercury_tabling_stats_undefs.h:
	New files that serve as wrappers around the newly #included files,
	controlling how they handle statistics.

runtime/mercury_tabling.c:
	Delete functions now in the new files, and #include them instead.
	Delete the data structures that used to contain summary statistics;
	the new approach keeps statistics in compiler-generated,
	procedure-specific data structures.

runtime/mercury_trace_base.c:
	Use the new versions of the tabling macros to access the I/O table.

runtime/mercury_type_info.h:
	Update some documentation for the movement of code out of
	mercury_tabling.c.

runtime/mercury_types.h:
	Provide forward declarations of the identifiers denoting the new types
	in mercury_tabling.h.

runtime/mercury_grade.h:
	Increment the exec trace version number, since we have changed
	a part of the exec trace structure.

runtime/mercury_bootstrap.h:
	Fix some temporary issues that arise from some renames above.

runtime/mercury_hash_lookup_or_add_body.h:
	Fix comment.

runtime/Mmakefile:
	Mention the new files and the dependencies that involve them.

library/table_builtin.m:
	Provide a type for representing statistics and a predicate for
	printing statistics.

	Use the updated versions of the macros in
	runtime/mercury_tabling_preds.h.

compiler/prog_item.m:
	Change representation of tabling pragmas to allow room for the new
	attributes.

	Allow an item to be marked as being generated by the compiler
	as a result of a pragma memo attribute. We use this for the reset
	and statistics predicates.

compiler/mercury_to_mercury.m:
	Write out the new attributes of the tabling pragma.

compiler/prog_data.m:
compiler/hlds_data.m:
	Change the cons_id that used to refer to a procedure's call table root
	to refer to the entirety of the new data structure now containing it.
	The compiler now needs a way to refer to the other components of this
	new data structure, since it contains the statistics.

	As in the runtime, don't distinguish "strict", "fast_loose" and
	"specified" memoing as separate eval methods; treat them as just
	different kinds of the same eval method: "memo".

	Rename some of the uses of the function symbols "c", "java", "il".

compiler/hlds_pred.m:
	Add an extra field in proc_infos for storing any tabling attributes.

	Change the existing proc_info field that records information about
	the kinds of arguments of tabled procedures to record the information
	needed by the debugger too. This was needed to allow us to shift all
	the RTTI for procedure-specific tables (as opposed to the RTTI for
	the global I/O table) from mercury_stack_layout.h to mercury_tabling.h
	without duplicating the data (which would be a maintenance problem).

	Reformat some comments to make them easier to read.

compiler/layout.m:
compiler/layout_out.m:
	Delete the part of the exec trace information that used to record
	RTTI for tables, since this information is not generated only as
	part of the debugger data structures anymore.

compiler/prog_io_pragma.m:
	Recognize the updated syntax for tabling pragmas.

compiler/add_pragma.m:
	When processing tabling pragmas for inclusion in the HLDS, create
	any reset and statistics predicates they ask for.

compiler/make_hlds_passes.m:
	Export a predicate now needed by add_pragma.m.

	Handle the new attributes on tabling pragmas

compiler/globals.m:
	Change the function symbols of the types describing backends and
	foreign languages to say what they are. Previously, both types (as well
	as several others) included the function symbol "c"; now, they are
	target_c and lang_c respectively.

compiler/table_gen.m:
	Implement the changes described at the top.

	When passing around varsets and vartypes, pass the arguments in the
	standard order.

compiler/goal_util.m:
compiler/hlds_goal.m:
	When passing around varsets and vartypes, pass the arguments in the
	standard order.

compiler/rtti.m:
	Provide types for representing the runtime's data structures for
	tabling (which are now significantly more complex than a single word)
	and predicates for manipulating them, for use by both the ml and ll
	backends.

compiler/llds.m:
	Replace the comp_gen_c_var type with the tabling_info_struct type,
	which contains the information needed to create the per-procedure
	tabling data structures.

	Replace references to call tables with references to the various
	components of the new tabling data structures.

compiler/llds_out.m:
	Add code to write out tabling_info_structs.

	Delete the code required for the old, hacky way of resetting tables.

	Reorder some code more logically.

compiler/proc_gen.m:
	Generate tabling_info_structs.

compiler/stack_layout.m:
	Don't generate the information now generated in proc_gen.m.

compiler/mlds.m:
	Give mlds_proc_labels their own function symbols, instead of using
	a pair. Rename some other function symbols to avoid ambiguity and add
	expressiveness.

	Provide for the representation of references to the various components
	of the new tabling data structures, and for the representation of their
	types.

compiler/ml_code_gen.m:
	When generating code for a tabled procedure, generate also the data
	structures required for its table.

compiler/rtti_to_mlds.m:
compiler/ml_util.m:
	Move some predicates from rtti_to_mlds.m to ml_util.m, since we
	now also want to call them from ml_code_gen.m.

compiler/name_mangle.m:
	Add some utility predicates.

compiler/options.m:
	Delete the old --allow-table-reset option.

	Add the new --table-debug option.

	Comment out an implementor-only option.

compiler/add_pred.m:
compiler/add_solver.m:
compiler/add_trail_ops.m:
compiler/add_type.m:
compiler/bytecode_gen.m:
compiler/code_gen.m:
compiler/compile_target_code.m:
compiler/complexity.m:
compiler/dependency_graph.m:
compiler/det_report.m:
compiler/export.m:
compiler/fact_table.m:
compiler/foreign.m:
compiler/global_data.m:
compiler/globals.m:
compiler/handle_options.m:
compiler/higher_order.m:
compiler/hlds_code_util.m:
compiler/hlds_data.m:
compiler/hlds_goal.m:
compiler/hlds_out.m:
compiler/inlining.m:
compiler/intermod.m:
compiler/make.dependencies.m:
compiler/make.module_target.m:
compiler/make.program_target.m:
compiler/make.util.m:
compiler/make_hlds_passes.m:
compiler/mercury_compile.m:
compiler/ml_call_gen.m:
compiler/ml_closure_gen.m:
compiler/ml_code_gen.m:
compiler/ml_code_util.m:
compiler/ml_elim_nested.m:
compiler/ml_optimize.m:
compiler/ml_switch_gen.m:
compiler/ml_tailcall.m:
compiler/ml_type_gen.m:
compiler/ml_unify_gen.m:
compiler/mlds_to_c.m:
compiler/mlds_to_gcc.m:
compiler/mlds_to_il.m:
compiler/mlds_to_ilasm.m:
compiler/mlds_to_java.m:
compiler/mlds_to_managed.m:
compiler/modes.m:
compiler/module_qual.m:
compiler/modules.m:
compiler/opt_debug.m:
compiler/opt_util.m:
compiler/polymorphism.m:
compiler/pragma_c_gen.m:
compiler/proc_label.m:
compiler/prog_data.m:
compiler/prog_foreign.m:
compiler/prog_item.m:
compiler/prog_mutable.m:
compiler/prog_out.m:
compiler/prog_rep.m:
compiler/prog_util.m:
compiler/recompilation.version.m:
compiler/size_prof.m:
compiler/special_pred.m:
compiler/switch_util.m:
compiler/transform_llds.m:
compiler/tupling.m:
compiler/type_ctor_info.m:
compiler/unify_gen.m:
	Conform to the changes above, and/or improve some comments.

mdbcomp/prim_data.m:
	Make the names of the function symbols of the proc_label type more
	expressive and less ambiguous.

mdbcomp/prim_data.m:
mdbcomp/mdbcomp.m:
mdbcomp/program_representation.m:
mdbcomp/rtti_access.m:
mdbcomp/slice_and_dice.m:
mdbcomp/trace_counts.m:
	Use . instead of __ as module qualifier.

	Conform to the change to prim_data.m.

browser/declarative_execution.m:
browser/declarative_oracle.m:
browser/declarative_tree.m:
	Conform the change to mdbcomp/prim_data.m.

tests/debugger/Mercury.options:
	Don't specify --allow-table-reset for fib.m, since that option
	doesn't exist anymore.

tests/debugger/fib.m:
	Use the new mechanism for resetting the table.

tests/debugger/print_table.m:
	Use the new syntax for pragma memo attributes.

tests/invalid/specified.{m,err_exp}:
	Use to the new syntax and reset method for pragma memo attributes.
	Test the handling of errors in the new attribute syntax.

tests/tabling/Mercury.options:
	Don't specify --allow-table-reset for specified.m, since that option
	doesn't exist anymore.

tests/tabling/specified.m:
	Use the new syntax for pragma memo attributes, and use the new
	mechanism for resetting tables. We could also use this test case
	for testing the printing of statistics, but the format of that
	output is still not final.

tests/tabling/fast_loose.m:
	Use the new syntax for pragma memo attributes, and use the new
	mechanism for resetting tables.

trace/mercury_trace.c:
trace/mercury_trace_cmd_developer.c:
	Conform to the changes in the RTTI data structures regarding tabling.

	Remove underscores from the names of some types that the style guide
	says shouldn't be there.

library/robdd.m:
	Comment out the tabling pragma until this change is bootstrapped.
	Without this, the conflict between the old calls to macros generated
	by the existing compiler and the new definition of those macros
	in the runtime would cause errors from the C compiler.
2006-06-08 08:20:17 +00:00
Julien Fischer
459847a064 Move the univ, maybe, pair and unit types from std_util into their own
Estimated hours taken: 18
Branches: main

Move the univ, maybe, pair and unit types from std_util into their own
modules.  std_util still contains the general purpose higher-order programming
constructs.

library/std_util.m:
	Move univ, maybe, pair and unit (plus any other related types
	and procedures) into their own modules.

library/maybe.m:
	New module.  This contains the maybe and maybe_error types and
	the associated procedures.

library/pair.m:
	New module.  This contains the pair type and associated procedures.

library/unit.m:
	New module. This contains the types unit/0 and unit/1.

library/univ.m:
	New module. This contains the univ type and associated procedures.

library/library.m:
	Add the new modules.

library/private_builtin.m:
	Update the declaration of the type_ctor_info struct for univ.

runtime/mercury.h:
	Update the declaration for the type_ctor_info struct for univ.

runtime/mercury_mcpp.h:
runtime/mercury_hlc_types.h:
	Update the definition of MR_Univ.

runtime/mercury_init.h:
	Fix a comment: ML_type_name is now exported from type_desc.m.

compiler/mlds_to_il.m:
	Update the the name of the module that defines univs (which are
	handled specially by the il code generator.)

library/*.m:
compiler/*.m:
browser/*.m:
mdbcomp/*.m:
profiler/*.m:
deep_profiler/*.m:
	Conform to the above changes.  Import the new modules where they
	are needed; don't import std_util where it isn't needed.

	Fix formatting in lots of modules.  Delete duplicate module
	imports.

tests/*:
	Update the test suite to confrom to the above changes.
2006-03-29 08:09:58 +00:00
Zoltan Somogyi
f7c8e5899d Add a new tabling method, one which specifies how each argument should
Estimated hours taken: 20
Branches: main

Add a new tabling method, one which specifies how each argument should
be treated, like this:

    :- pragma memo(p(in, in, in, out), [value, addr, promise_implied, output]).

doc/reference_manual.texi:
	Document the new tabling method.

compiler/prog_data.m:
	Add a new tabling method, one which specifies how each argument should
	be treated.

compiler/hlds_pred.m:
	Provide for the description of untabled input arguments of tabled
	procedures.

compiler/prog_io_pragma.m:
	Parse the new tabling method.

	Fix a bunch of formatting problems.

compiler/add_pragma.m:
	When adding a tabling pragma to the HLDS, check that if the pragma
	individually specifies the tabling methods of a procedure's arguments,
	then those tabling methods agree with the modes of those arguments.

	Fix an old bug: check whether a tabled predicate's arguments are
	fully input or fully output, and print an error message if not.
	We used to check this only in table_gen.m, but there we could only
	abort the compiler if the check failed.

	Factor out some common code and thereby fix an old bug: check for
	conflicting tabling pragmas not just when adding the pragma to all
	procedures of a predicate, but also when adding it to only a
	specified procedure.

compiler/table_gen.m:
	Implement the new tabling method.

compiler/prog_out.m:
compiler/layout_out.m:
	Conform to the changes above.

runtime/mercury_stack_layout.h:
	Provide for the description of untabled input arguments of tabled
	procedures.

trace/mercury_trace.c:
	Handle the new tabling method.

trace/mercury_trace_internal.c:
	Handle the new tabling method. Delete the defaults from some switches
	on enums to allow gcc to recognize missing cases.

	Handle the untabled input arguments of tabled procedures: skip over
	them when printing procedures' call tables.

	Enable better completion for mdb's "table" command.

trace/mercury_trace_tables.[ch]:
	Rename the breakpoint completer the proc_spec completer, since it does
	completions on procedure specifications.

tests/debugger/print_table.{m,inp,exp}:
	Modify this test case to test the ability to print the tables of
	predicates with some untabled arguments.

tests/tabling/specified.{m,exp}:
	New test case to check the functioning of the new tabling method
	by testing whether it is in fact faster to table the address of
	an argument instead of its value, or to not table it at all.
	Since the gains here are not quite as dramatic as tabled vs untabled,
	use a slightly looser criterion for comparing speeds than we use
	in the various versions of the fib test case.

tests/tabling/Mmakefile:
tests/tabling/Mercury.options:
	Enable the new test case, and set up the option it needs.

tests/invalid/specified.{m,err_exp}:
	New test case, a slight variant of tests/tabling/specified.m,
	to check the compiler's ability to detect errors in the new form
	of tabling pragma.

tests/invalid/Mmakefile:
	Enable the new test case.
2005-08-14 03:20:59 +00:00
Zoltan Somogyi
e854a5f9d9 Major improvements to tabling, of two types.
Estimated hours taken: 32
Branches: main

Major improvements to tabling, of two types. The first is the implementation
of the loopcheck and memo forms of tabling for model_non procedures, and the
second is a start on the implementation of a new method of implementing
minimal model tabling, one that has the potential for a proper fix of the
problem that we currently merely detect with the pneg stack (the detection
is followed by a runtime abort). Since this new method relies on giving each
own generator its own stack, the grade component denoting it is "mmos"
(minimal model own stack). The true name of the existing method is changed
from "mm" to "mmsc" (minimal model stack copy). The grade component "mm"
is now a shorthand for "mmsc"; when the new method works, "mm" will be changed
to be a shorthand for "mmos".

configure.in:
scripts/canonical_grade.sh-subr:
scripts/init_grade_options.sh-subr:
scripts/parse_grade_options.sh-subr:
scripts/final_grade_options.sh-subr:
compiler/options.m:
	Handle the new way of handling minimal model grades.

scripts/mgnuc.in:
compiler/compile_target_code.m:
	Conform to the changes in minimal model grade options.

compiler/table_gen.m:
	Implement the transformations required by the loopcheck and memo
	tabling of model_non procedures, and the minimal model own stack
	transformation.

	The new implementation transformations use foreign_procs with extra
	args, since there is no point in implementing them both that way and
	with separate calls to library predicates. This required making the
	choice of which method to use at the top level of each transformation.

	Fix an oversight that hasn't caused problems yet but may in the future:
	mark goals wrapping the original goals as not impure for determinism
	computations.

compiler/handle_options.m:
	Handle the new arrangement of the options for minimal model tabling.
	Detect simultaneous calls for both forms of minimal model tabling,
	and generate an error message. Allow for more than one error message
	generated at once; report them all once rather than separately.

compiler/globals.m:
	Add a mechanism to allow a fix a problem detected by the changes
	to handle_options: the fact that we currently may generate a usage
	message more than once for invocations with more than one error.

compiler/mercury_compile.m:
compiler/make.program_target.m:
compiler/make.util.m:
	Use the new mechanism in handle_options to avoid generating duplicate
	usage messages.

compiler/error_util.m:
	Add a utility predicate for use by handle_options.

compiler/hlds_pred.m:
	Allow memo tabling for model_non predicates, and handle own stack
	tabling.

compiler/hlds_out.m:
	Print information about the modes of the arguments of foreign_procs,
	since this is useful in debugging transformations such as tabling
	that generate them.

compiler/prog_data.m:
compiler/layout_out.m:
compiler/prog_out.m:
runtime/mercury_stack_layout.h:
	Mention the new evaluation method.

compiler/goal_util.m:
	Change the predicates for creating calls and foreign_procs to allow
	more than one goal feature to be attached to the new goal. table_gen.m
	now uses this capability.

compiler/add_heap_ops.m:
compiler/add_trail_ops.m:
compiler/polymorphism.m:
compiler/simplify.m:
compiler/size_prof.m:
compiler/typecheck.m:
compiler/unify_proc.m:
	Conform to the changes in goal_util.

compiler/code_info.m:
compiler/make_hlds.m:
compiler/modules.m:
compiler/prog_io_pragma.m:
	Conform to the new the options controlling minimal model
	tabling.

compiler/prog_util.m:
	Add a utility predicate for use by table_gen.m.

library/std_util.m:
	Conform to the changes in the macros for minimal model tabling grades.

library/table_builtin.m:
	Add the types and predicates required by the new transformations.

	Delete an obsolete comment.

runtime/mercury_grade.h:
	Handle the new minimal model grade component.

runtime/mercury_conf_param.h:
	List macros controlling minimal model grades.

runtime/mercury_tabling.[ch]:
	Define the types needed by the new transformations,

	Implement the performance-critical predicates that need to be
	hand-written for memo tabling of model_non predicates.

	Add utility predicates for debugging.

runtime/mercury_tabling_preds.h:
	Add the implementations of the predicates required by the new
	transformations.

runtime/mercury_mm_own_stacks.[ch]:
	This new module contains the first draft of the implementation
	of the own stack implementation of minimal model tabling.

runtime/mercury_imp.h:
	Include the new file if the grade needs it.

runtime/Mmakefile:
	Mention the new files, and sort the lists of filenames.

runtime/mercury_tabling_macros.h:
	Add a macro for allocating answer blocks without requiring them to be
	pointed to directly by trie nodes.

runtime/mercury_minimal_model.[ch]:
	The structure type holding answer lists is now in mercury_tabling.h,
	since it is now also needed by memo tabling of model_non predicates.
	It no longer has a field for an answer num, because while it is ok
	to require a separate grade for debugging minimal model tabling,
	it is not ok to require a separate grade for debugging memo tabling
	of model_non predicates. Instead of printing the answer numbers,
	print the answers themselves when we need to identify solutions
	for debugging.

	Change function names, macro names, error messages etc where this is
	useful to distinguish the two kinds of minimal model tabling.

	Fix some oversights wrt transient registers.

runtime/mercury_context.[ch]:
runtime/mercury_engine.[ch]:
runtime/mercury_memory.[ch]:
runtime/mercury_wrapper.[ch]:
	With own stack tabling, each subgoal has its own context, so record
	the identity of the subgoal owning a context in the context itself.
	The main computation's context is the exception: it has no owner.

	Record not just the main context, but also the contexts of subgoals
	in the engine.

	Add variables for holding the sizes of the det and nondet stacks
	of the contexts of subgoals (which should in general be smaller
	than the sizes of the corresponding stacks of the main context),
	and initialize them as needed.

	Initialize the variables holding the sizes of the gen, cut and pneg
	stacks, even in grades where the stacks are not used, for safety.

	Fix some out-of-date documentation, and conform to our coding
	guidelines.

runtime/mercury_memory_zones.[ch]:
	Add a function to test whether a pointer is in a zone, to help
	debugging.

runtime/mercury_debug.[ch]:
	Add some functions to help debugging in the presence of multiple
	contexts, and factor out some common code to help with this.

	Delete the obsolete, unused function MR_printdetslot_as_label.

runtime/mercury_context.h:
runtime/mercury_bootstrap.h:
	Move a bootstrapping #define from mercury_context.h to
	mercury_bootstrap.h.

runtime/mercury_context.h:
runtime/mercury_bootstrap.h:
	Move a bootstrapping #define from mercury_context.h to
	mercury_bootstrap.h.

runtime/mercury_types.h:
	Add some more forward declarations of type names.

runtime/mercury_dlist.[ch]:
	Rename a field to avoid assignments that dereference NULL.

runtime/mercury_debug.c:
runtime/mercury_memory.c:
runtime/mercury_ml_expand_body.h:
runtime/mercury_stack_trace.c:
runtime/mercury_stacks.[ch]:
trace/mercury_trace_util.c
	Update uses of the macros that control minimal model tabling.

runtime/mercury_stack_trace.c:
	Provide a mechanism to allow stack traces to be suppressed entirely.
	The intention is that by using this mechanism, by the testing system
	won't have to provide separate .exp files for hlc grades, nondebug
	LLDS grades and debug LLDS grades, as we do currently. The mechanism
	is the environment variable MERCURY_SUPPRESS_STACK_TRACE.

tools/bootcheck:
tools/test_mercury:
	Specify MERCURY_SUPPRESS_STACK_TRACE.

trace/mercury_trace.c:
	When performing retries across tabled calls, handle memo tabled
	model_non predicates, for which the call table tip variable holds
	a record with a back pointer to a trie node, instead of the trie node
	itself.

trace/mercury_trace_internal.c:
	When printing tables, handle memo tabled model_non predicates. Delete
	the code now moved to runtime/mercury_tabling.c.

	Add functions for printing the data structures for own stack minimal
	model tabling.

tests/debugger/print_table.{m,inp,exp}:
	Update this test case to also test the printing of tables for
	memo tabled model_non predicates.

tests/debugger/retry.{m,inp,exp}:
	Update this test case to also test retries across memo tabled
	model_non predicates.

tests/tabling/loopcheck_nondet.{m,exp}:
tests/tabling/loopcheck_nondet_non_loop.{m,exp}:
	New test cases to test loopcheck tabled model_non predicates.
	One test case has a loop to detect, one doesn't.

tests/tabling/memo_non.{m,exp}:
tests/tabling/tc_memo.{m,exp}:
tests/tabling/tc_memo2.{m,exp}:
	New test cases to test memo tabled model_non predicates.
	One test case has a loop to detect, one has a need for minimal model
	tabling to detect, and the third doesn't have either.

tests/tabling/Mmakefile:
	Add the new test cases, and reenable the existing tc_loop test case.

	Rename some make variables and targets to make them better reflect
	their meaning.

tests/tabling/test_mercury:
	Conform to the change in the name of the make target.
2004-07-20 04:41:55 +00:00
Zoltan Somogyi
fc1b61d4f7 Avoid an unnecessary determinism warning.
Estimated hours taken: 0.1
Branches: main

tests/debugger/print_table.{m,exp}:
	Avoid an unnecessary determinism warning.
2004-05-04 08:07:23 +00:00
Zoltan Somogyi
2bef47ce85 Extend the information we record about procedures when debugging is enabled
Estimated hours taken: 20
Branches: main (for now, after more testing, on release branch too)

Extend the information we record about procedures when debugging is enabled
to include information about the tabling transformation, if the procedure
in question is tabled. This is useful to developers in debugging the tabling
mechanism, and can be useful to general users by helping them understand the
space (and hence time) costs of tabling.

Add a new mdb command "table" that uses this information to print
programmer-selected subsets of the tables of a tabled procedure.

compiler/hlds_pred.m:
	Generalize the existing field in procedures that used to hold
	information about I/O tabling to contain information about tabling
	in general, including forms other than I/O tabling.

compiler/continuation_info.m:
compiler/code_gen.m:
compiler/stack_layout.m:
	Conform to the changes in hlds_pred.m.

compiler/layout.m:
	Provide Mercury parallels for the new data structures in
	mercury_stack_layout.h.

compiler/layout_out.m:
	Generate the new data structures in mercury_stack_layout.h.

compiler/table_gen.m:
	Generate the new data structures in hlds_pred.m.

compiler/llds_common.m:
compiler/opt_debug.m:
	Conform to the changes in layout.m

compiler/llds_out.m:
	Abstract out existing code into a new procedure to make it available
	to layout_out.m.

	Make tabling pointer variables their natural type.

compiler/modules.m:
	Fix an old bug: implicitly import table_builtin.m in .mm grades.

doc/mdb_categories:
doc/user_guide.texi:
	Document the new mdb command "table".

runtime/mercury_types.h:
	Move some type definitions here from mercury_tabling.h and
	mercury_stack_layout.h. This was necessary to avoid problems with
	circular #includes, in which a.h #includes b.h to get access to a
	definition, but b.h #includes a.h, which is prevented by the macro
	guarding against duplicate definition, which causes syntax errors
	in the rest of b.h because the rest of b.h depends on typedefs in
	a.h that occur in a.h *after* the #include of b.h.

runtime/mercury_label.h:
	Adjust the list of #includes after the change to mercury_types.h.

runtime/mercury_stack_layout.h:
	Extend the debugging data structures with constructs that describe
	the call tables, answer tables and answer blocks of tabled procedures.

	Delete typedefs that are now in mercury_types.h.

runtime/mercury_tabling.[ch]:
	Add new functions to allow lookups without insertions in hash tables
	containing ints, floats and strings.

	Add new functions to return the entire contents of these hash tables.

	Change to four-space indentation where this wasn't done previously.

runtime/mercury_grade.h:
	Increment the binary compatbility version number, partially to
	account for the change to mercury_stack_layout.h in this diff, but
	mostly to account for all the other diffs to mercury_stack_layout.h
	since the last released version.

trace/mercury_trace_tables.[ch]:
	Rename MR_print_proc_id_for_debugger as MR_print_proc_id_and_nl,
	since this better describes what the function does.

trace/mercury_trace_util.[ch]:
	Add a new function MR_trace_is_integer that reads in signed integers.

	Rename MR_trace_is_number as MR_trace_is_natural_number, since the
	former would now be ambiguous.

	Add a new function MR_trace_is_float that reads in floating point
	values.

library/string.m:
	Document that MR_trace_is_float uses the same logic as
	MR_trace_is_float.

trace/mercury_trace_browse.c:
trace/mercury_trace_vars.c:
	Update calls to MR_trace_is_number.

trace/mercury_trace_internal.c:
	Implement the new mdb command "table".

	Update calls to MR_trace_is_number and to
	MR_print_proc_id_for_debugger.

tests/debugger/print_table.{m,inp,exp}:
	New test case to test the new mdb command.

tests/debugger/Mmakefile:
	Enable the new test case.

	Disable the sensitive test cases in .mm grades.

tests/debugger/completion.exp:
	Update the expected output to include the new mdb command.

tests/debugger/mdb_command_test.inp:
	Update this automatically generated file to include the new mdb
	command.
2002-11-15 04:50:49 +00:00