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10 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Simon Taylor
|
2725b1a331 |
Aditi update syntax, type and mode checking.
Estimated hours taken: 220
Aditi update syntax, type and mode checking.
Change the hlds_goal for constructions in preparation for
structure reuse to avoid making multiple conflicting changes.
compiler/hlds_goal.m:
Merge `higher_order_call' and `class_method_call' into a single
`generic_call' goal type. This also has alternatives for the
various Aditi builtins for which type declarations can't
be written.
Remove the argument types field from higher-order/class method calls.
It wasn't used often, and wasn't updated by optimizations
such as inlining. The types can be obtained from the vartypes
field of the proc_info.
Add a `lambda_eval_method' field to lambda_goals.
Add a field to constructions to identify which RL code fragment should
be used for an top-down Aditi closure.
Add fields to constructions to hold structure reuse information.
This is currently ignored -- the changes to implement structure
reuse will be committed to the alias branch.
This is included here to avoid lots of CVS conflicts caused by
changing the definition of `hlds_goal' twice.
Add a field to `some' goals to specify whether the quantification
can be removed. This is used to make it easier to ensure that
indexes are used for updates.
Add a field to lambda_goals to describe whether the modes were
guessed by the compiler and may need fixing up after typechecking
works out the argument types.
Add predicate `hlds_goal__generic_call_id' to work out a call_id
for a generic call for use in error messages.
compiler/purity.m:
compiler/post_typecheck.m:
Fill in the modes of Aditi builtin calls and closure constructions.
This needs to know which are the `aditi__state' arguments, so
it must be done after typechecking.
compiler/prog_data.m:
Added `:- type sym_name_and_arity ---> sym_name/arity'.
Add a type `lambda_eval_method', which describes how a closure
is to be executed. The alternatives are normal Mercury execution,
bottom-up execution by Aditi and top-down execution by Aditi.
compiler/prog_out.m:
Add predicate `prog_out__write_sym_name_and_arity', which
replaces duplicated inline code in a few places.
compiler/hlds_data.m:
Add a `lambda_eval_method' field to `pred_const' cons_ids and
`pred_closure_tag' cons_tags.
compiler/hlds_pred.m:
Remove type `pred_call_id', replace it with type `simple_call_id',
which combines a `pred_or_func' and a `sym_name_and_arity'.
Add a type `call_id' which describes all the different types of call,
including normal calls, higher-order and class-method calls
and Aditi builtins.
Add `aditi_top_down' to the type `marker'.
Remove `aditi_interface' from type `marker'. Interfacing to
Aditi predicates is now handled by `generic_call' hlds_goals.
Add a type `rl_exprn_id' which identifies a predicate to
be executed top-down by Aditi.
Add a `maybe(rl_exprn_id)' field to type `proc_info'.
Add predicate `adjust_func_arity' to convert between the arity
of a function to its arity as a predicate.
Add predicates `get_state_args' and `get_state_args_det' to
extract the DCG state arguments from an argument list.
Add predicate `pred_info_get_call_id' to get a `simple_call_id'
for a predicate for use in error messages.
compiler/hlds_out.m:
Write the new representation for call_ids.
Add a predicate `hlds_out__write_call_arg_id' which
replaces similar code in mode_errors.m and typecheck.m.
compiler/prog_io_goal.m:
Add support for `aditi_bottom_up' and `aditi_top_down' annotations
on pred expressions.
compiler/prog_io_util.m:
compiler/prog_io_pragma.m:
Add predicates
- `prog_io_util:parse_name_and_arity' to parse `SymName/Arity'
(moved from prog_io_pragma.m).
- `prog_io_util:parse_pred_or_func_name_and_arity to parse
`pred SymName/Arity' or `func SymName/Arity'.
- `prog_io_util:parse_pred_or_func_and_args' to parse terms resembling
a clause head (moved from prog_io_pragma.m).
compiler/type_util.m:
Add support for `aditi_bottom_up' and `aditi_top_down' annotations
on higher-order types.
Add predicates `construct_higher_order_type',
`construct_higher_order_pred_type' and
`construct_higher_order_func_type' to avoid some code duplication.
compiler/mode_util.m:
Add predicate `unused_mode/1', which returns `builtin:unused'.
Add functions `aditi_di_mode/0', `aditi_ui_mode/0' and
`aditi_uo_mode/0' which return `in', `in', and `out', but will
be changed to return `di', `ui' and `uo' when alias tracking
is implemented.
compiler/goal_util.m:
Add predicate `goal_util__generic_call_vars' which returns
any arguments to a generic_call which are not in the argument list,
for example the closure passed to a higher-order call or
the typeclass_info for a class method call.
compiler/llds.m:
compiler/exprn_aux.m:
compiler/dupelim.m:
compiler/llds_out.m:
compiler/opt_debug.m:
Add builtin labels for the Aditi update operations.
compiler/hlds_module.m:
Add predicate predicate_table_search_pf_sym, used for finding
possible matches for a call with the wrong number of arguments.
compiler/intermod.m:
Don't write predicates which build `aditi_top_down' goals,
because there is currently no way to tell importing modules
which RL code fragment to use.
compiler/simplify.m:
Obey the `cannot_remove' field of explicit quantification goals.
compiler/make_hlds.m:
Parse Aditi updates.
Don't typecheck clauses for which syntax errors in Aditi updates
are found - this avoids spurious "undefined predicate `aditi_insert/3'"
errors.
Factor out some common code to handle terms of the form `Head :- Body'.
Factor out common code in the handling of pred and func expressions.
compiler/typecheck.m:
Typecheck Aditi builtins.
Allow the argument types of matching predicates to be adjusted
when typechecking the higher-order arguments of Aditi builtins.
Change `typecheck__resolve_pred_overloading' to take a list of
argument types rather than a `map(var, type)' and a list of
arguments to allow a transformation to be performed on the
argument types before passing them.
compiler/error_util.m:
Move the part of `report_error_num_args' which writes
"wrong number of arguments (<x>; expected <y>)" from
typecheck.m for use by make_hlds.m when reporting errors
for Aditi builtins.
compiler/modes.m:
compiler/unique_modes.m:
compiler/modecheck_call.m:
Modecheck Aditi builtins.
compiler/lambda.m:
Handle the markers for predicates introduced for
`aditi_top_down' and `aditi_bottom_up' lambda expressions.
compiler/polymorphism.m:
Add extra type_infos to `aditi_insert' calls
describing the tuple to insert.
compiler/call_gen.m:
Generate code for Aditi builtins.
compiler/unify_gen.m:
compiler/bytecode_gen.m:
Abort on `aditi_top_down' and `aditi_bottom_up' lambda
expressions - code generation for them is not yet implemented.
compiler/magic.m:
Use the `aditi_call' generic_call rather than create
a new procedure for each Aditi predicate called from C.
compiler/rl_out.pp:
compiler/rl_gen.m:
compiler/rl.m:
Move some utility code used by magic.m and call_gen.m into rl.m.
Remove an XXX comment about reference counting being not yet
implemented - Evan has fixed that.
library/ops.m:
compiler/mercury_to_mercury.m:
doc/transition_guide.texi:
Add unary prefix operators `aditi_bottom_up' and `aditi_top_down',
used as qualifiers on lambda expressions.
Add infix operator `==>' to separate the tuples in an
`aditi_modify' call.
compiler/follow_vars.m:
Thread a `map(prog_var, type)' through, needed because
type information is no longer held in higher-order call goals.
compiler/table_gen.m:
Use the `make_*_construction' predicates in hlds_goal.m
to construct constants.
compiler/*.m:
Trivial changes to add extra fields to hlds_goal structures.
doc/reference_manual.texi:
Document Aditi updates.
Use @samp{pragma base_relation} instead of
@samp{:- pragma base_relation} throughout the Aditi documentation
to be consistent with other parts of the reference manual.
tests/valid/Mmakefile:
tests/valid/aditi_update.m:
tests/valid/aditi.m:
Test case.
tests/valid/Mmakefile:
Remove some hard-coded --intermodule-optimization rules which are
no longer needed because `mmake depend' is now run in this directory.
tests/invalid/*.err_exp:
Fix expected output for changes in reporting of call_ids
in typecheck.m.
tests/invalid/Mmakefile
tests/invalid/aditi_update_errors.{m,err_exp}:
tests/invalid/aditi_update_mode_errors.{m,err_exp}:
Test error messages for Aditi updates.
tests/valid/aditi.m:
tests/invalid/aditi.m:
Cut down version of extras/aditi/aditi.m to provide basic declarations
for Aditi compilation such as `aditi__state' and the modes
`aditi_di', `aditi_uo' and `aditi_ui'. Installing extras/aditi/aditi.m
somewhere would remove the need for these.
|
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|
Peter Ross
|
a5f5c63a3a |
Add the infrastructure for assertions into the compiler.
Estimated hours taken: 50
Add the infrastructure for assertions into the compiler.
compiler/error_util.m:
Output the correct pred name for assertions.
compiler/hlds_data.m:
Add the assertion_table structure.
compiler/hlds_module.m:
Get/set the assertion_table from the module_info.
compiler/hlds_out.m:
Modify hlds_out__write_pred_id to identify assertions.
compiler/hlds_pred.m:
Add the goal_type assertion.
compiler/make_hlds.m:
Transform the assertion to a HLDS data structure that can be
typechecked.
compiler/mercury_to_goedel.m:
compiler/module_qual.m:
Handle the assertion structure.
compiler/mercury_to_mercury.m:
Output assertions.
compiler/post_typecheck.m:
Add a predicate which must be called after typechecking of
assertions has been finished. Also document some possible problems
with typechecking assertions.
compiler/prog_data.m:
Add assertion to the type item.
compiler/prog_io.m:
Add the ability to parse assertions.
compiler/purity.m:
After finished typechecking assertions call
post_typecheck__finish_assertion.
compiler/typecheck.m:
Don't output inference messages for assertions.
compiler/notes/compiler_design.html:
Update documentation about exactly where quantification is done.
compiler/notes/glossary.html:
Define what an assertion is.
|
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|
Simon Taylor
|
1823076224 |
Change code to output predicate names and pragma declarations
Estimated hours taken: 0.5 compiler/error_util.m: compiler/term_errors.m: Change code to output predicate names and pragma declarations to be consistent with other error messages. Fix some tense inconsistencies and grammar errors in the termination error messages. |
||
|
Simon Taylor
|
18430aaef1 |
Aditi compilation.
Estimated hours taken: 1200
Aditi compilation.
compiler/options.m:
The documentation for these is commented out because the Aditi
system is not currently useful to the general public.
--aditi: enable Aditi compilation.
--dump-rl: write the intermediate RL to `<module>.rl_dump'.
--dump-rl-bytecode: write a text version of the bytecodes
to `<module>.rla'
--aditi-only: don't produce a `.c' file.
--filenames-from-stdin: accept a list of filenames to compile
from stdin. This is used by the query shell.
--optimize-rl, --optimize-rl-cse, --optimize-rl-invariants,
--optimize-rl-index, --detect-rl-streams:
Options to control RL optimization passes.
--aditi-user:
Default owner of any Aditi procedures,
defaults to $USER or "guest".
--generate-schemas:
write schemas for base relations to `<module>'.base_schema
and schemas for derived relations to `<module>'.derived_schema.
This is used by the query shell.
compiler/handle_options.m:
Handle the default for --aditi-user.
compiler/hlds_pred.m:
compiler/prog_data.m:
compiler/prog_io_pragma.m:
compiler/make_hlds.m:
Add some Aditi pragma declarations - `aditi', `supp_magic', `context',
`naive', `psn' (predicate semi-naive), `aditi_memo', `aditi_no_memo',
`base_relation', `owner' and `index'.
Separate out code to parse a predicate name and arity.
compiler/hlds_pred.m:
Add predicates to identify Aditi procedures.
Added markers `generate_inline' and `aditi_interface', which
are used internally for Aditi code generation.
Add an `owner' field to pred_infos, which is used for database
security checks.
Add a field to pred_infos to hold the list of indexes for a base
relation.
compiler/make_hlds.m:
Some pragmas must be exported if the corresponding predicates
are exported, check this.
Make sure stratification of Aditi procedures is checked.
Predicates with a mode declaration but no type declaration
are no longer assumed to be local.
Set the `do_aditi_compilation' field of the module_info if there
are any local Aditi procedures or base relations.
Check that `--aditi' is set if Aditi compilation is required.
compiler/post_typecheck.m:
Check that every Aditi predicate has an `aditi__state' argument,
which is used to ensure sequencing of updates and that Aditi
procedures are only called within transactions.
compiler/dnf.m:
Changed the definition of disjunctive normal form slightly
so that a call followed by some atomic goals not including
any database calls is considered atomic. magic.m can handle
this kind of goal, and it results in more efficient RL code.
compiler/hlds_module.m:
compiler/dependency_graph.m:
Added dependency_graph__get_scc_entry_points which finds
the procedures in an SCC which could be called from outside.
Added a new field to the dependency_info, the
aditi_dependency_ordering. This contains all Aditi SCCs of
the original program, with multiple SCCs merged where
possible to improve the effectiveness of differential evaluation
and the low level RL optimizations.
compiler/hlds_module.m:
Add a field to record whether there are any local Aditi procedures
in the current module.
Added versions of module_info_pred_proc_info and
module_info_set_pred_proc_info which take a pred_proc_id,
not a separate pred_id and proc_id.
compiler/polymorphism.m:
compiler/lambda.m:
Make sure that predicates created for closures in Aditi procedures
have the correct markers.
compiler/goal_util.m:
Added goal_util__switch_to_disjunction,
goal_util__case_to_disjunct (factored out from simplify.m)
and goal_util__if_then_else_to_disjunction. These are
require because supplementary magic sets can't handle
if-then-elses or switches.
compiler/type_util.m:
Added type_is_aditi_state/1.
compiler/mode_util.m:
Added partition_args/5 which partitions a list of arguments
into inputs and others.
compiler/inlining.m:
Don't inline memoed procedures.
Don't inline Aditi procedures into non-Aditi procedures.
compiler/intermod.m:
Handle Aditi markers.
Clean up handling of markers which should not appear in `.opt' files.
compiler/simplify.m:
Export a slightly different interface for use by magic.m.
Remove explicit quantifications where possible.
Merge multiple nested quantifications.
Don't report infinite recursion warnings for Aditi procedures.
compiler/prog_out.m:
Generalised the code to output a module list to write any list.
compiler/code_gen.m:
compiler/arg_info.m:
Don't process Aditi procedures.
compiler/mercury_compile.m:
Call magic.m and rl_gen.m.
Don't perform the low-level annotation passes on Aditi procedures.
Remove calls to constraint.m - sometime soon a rewritten version
will be called directly from deforestation.
compiler/passes_aux.m:
Add predicates to process only non-Aditi procedures.
compiler/llds.m:
compiler/llds_out.m:
Added new `code_addr' enum members, do_{det,semidet,nondet}_aditi_call,
which are defined in extras/aditi/aditi.m.
compiler/call_gen.m:
Handle generation of do_*_aditi_call.
compiler/llds_out.m:
Write the RL code for the module as a constant char array
in the `.c' file.
compiler/term_errors.m:
compiler/error_util.m:
Move code to describe predicates into error_util.m
Allow the caller to explicitly add line breaks.
Added error_util:list_to_pieces to format a list of
strings.
Reordered some arguments for currying.
compiler/hlds_out.m:
Don't try to print clauses if there are none.
runtime/mercury_init.h:
util/mkinit.c:
scripts/c2init.in:
Added a function `mercury__load_aditi_rl_code()' to the generated
`<module>_init.c' file which throws all the RL code for the program
at the database. This should be called at connection time by
`aditi__connect'.
Added an option `--aditi' which controls the output
`mercury__load_aditi_rl_code()'.
compiler/notes/compiler_design.html:
Document the new files.
Mmakefile:
bindist/Mmakefile:
Don't distribute extras/aditi yet.
New files:
compiler/magic.m:
compiler/magic_util.m:
Supplementary magic sets transformation. Report errors
for constructs that Aditi can't handle.
compiler/context.m:
Supplementary context transformation.
compiler/rl_gen.m:
compiler/rl_relops.m:
Aditi code generation.
compiler/rl_info.m:
Code generator state.
compiler/rl.m:
Intermediate RL representation.
compiler/rl_util:
Predicates to collect information about RL instructions.
compiler/rl_dump.m:
Print out the representation in rl.m.
compiler/rl_opt.m:
Control low-level RL optimizations.
compiler/rl_block.m:
Break a procedure into basic blocks.
compiler/rl_analyse.m:
Generic dataflow analysis for RL procedures.
compiler/rl_liveness.m:
Make sure all relations are initialised before used, clear
references to relations that are no longer required.
compiler/rl_loop.m:
Loop invariant removal.
compiler/rl_block_opt.m:
CSE and instruction merging on basic blocks.
compiler/rl_key.m:
Detect upper/lower bounds for which a goal could succeed.
compiler/rl_sort.m:
Use indexing for joins and projections.
Optimize away unnecessary sorting and indexing.
compiler/rl_stream.m:
Detect relations which don't need to be materialised.
compiler/rl_code.m:
RL bytecode definitions. Automatically generated from the Aditi
header files.
compiler/rl_out.m:
compiler/rl_file.m:
Output the RL bytecodes in binary to <module>.rlo (for use by Aditi)
and in text to <module>.rla (for use by the RL interpreter).
Also output the schema information if --generate-schemas is set.
compiler/rl_exprn.m:
Generate bytecodes for join conditions.
extras/aditi/Mmakefile:
extras/aditi/aditi.m:
Definitions of some Aditi library predicates and the
interfacing and transaction processing code.
|
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|
Thomas Conway
|
5c955626f2 |
These changes make var' and term' polymorphic.
Estimated hours taken: 20 These changes make `var' and `term' polymorphic. This allows us to make variables and terms representing types of a different type to those representing program terms and those representing insts. These changes do not *fix* any existing problems (for instance there was a messy conflation of program variables and inst variables, and where necessary I've just called varset__init(InstVarSet) with an XXX comment). NEWS: Mention the changes to the standard library. library/term.m: Make term, var and var_supply polymorphic. Add new predicates: term__generic_term/1 term__coerce/2 term__coerce_var/2 term__coerce_var_supply/2 library/varset.m: Make varset polymorphic. Add the new predicate: varset__coerce/2 compiler/prog_data.m: Introduce type equivalences for the different kinds of vars, terms, and varsets that we use (tvar and tvarset were already there but have been changed to use the polymorphic var and term). Also change the various kinds of items to use the appropriate kinds of var/varset. compiler/*.m: Thousands of boring changes to make the compiler type correct with the different types for type, program and inst vars and varsets. |
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Fergus Henderson
|
986b631dc6 |
Add code to parse terms from strings rather than from streams.
Estimated hours taken: 24
Add code to parse terms from strings rather than from streams.
The original intention for this change was twofold:
to increase expressiveness and to improve efficiency.
However, for the moment I have given up on the goal of
improving efficiency.
library/io.m:
Add io__read_file_as_string/{4,5}, for efficiently
reading a whole file into a single string.
Add io__read_from_string/5, for reading terms of
any type from a string.
(Should that instead be named string__read instead?)
library/string.m:
Implement string__substring/4 more efficiently,
using `pragma c_code' rather than by calling
string__right(string__left(...)).
Export string__unsafe_index/3, and add new exported
predicate string__unsafe_substring/4 -- these
are versions of string__index and string__substring
that don't check for range errors. They are
needed to get reasonable efficiency when dealing
with very large strings.
library/string.nu.nl:
Add Prolog implementations of string__substring
and string__unsafe_substring.
library/lexer.m:
Add lexer__string_get_token_list/{5,6}, for parsing
tokens from a string. This required adding
`string_' versions of most of the lexical analysis routines.
XXX lots of code duplication, I'm afraid.
XXX the string versions are not as efficiency as they
could ideally be.
library/parser.m:
Add new predicates parser__read_term_from_string/{4,6}
and parser__parse_token_list.
compiler/bytecode_gen.m:
compiler/error_util.m:
compiler/fact_table.m:
compiler/term_errors.m:
Minor changes to use term__context as an ADT rather than
as a concrete data type.
In addition, I made the following changes, which I am NOT committing.
compiler/prog_io.m:
Change to use io__read_file_as_string and
parser__read_term_from_string.
(Not committed because the existing method is
in currently more efficient.)
library/term.m:
Add new alternative term__detailed_context to the term__context type.
This alternative can record both the start and end of a term rather
than just the end.
(The lexer now has almost all the necessary support for detailed
contexts, but enabling it would have some potentially significant
efficiency costs, and curently the parser uses only single contexts
rather than ranges; so currently this is not used.)
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Zoltan Somogyi
|
e0c28182d5 |
Instead of requiring the writer of error messages to provide a list
Estimated hours taken: 1.5 error_util: Instead of requiring the writer of error messages to provide a list of words, allow them to provide strings that the code in this module will break down into words at white space. (They can still provide words not to be proken down.) term_errors: Use the new flexibility in error_util to make the code preparing error messages to read a lot better. |
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Fergus Henderson
|
73131e8df3 |
Undo Zoltan's bogus update of all the copyright dates.
Estimated hours taken: 0.75 library/*.m: compiler/*.m: Undo Zoltan's bogus update of all the copyright dates. The dates in the copyright header should reflect the years in which the file was modified (and no, changes to the copyright header itself don't count as modifications). |
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Zoltan Somogyi
|
bb4442ddc1 |
Update copyright dates for 1998.
Estimated hours taken: 0.5 compiler/*.m: Update copyright dates for 1998. |
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Zoltan Somogyi
|
b4813457c9 |
A rewrite of termination analysis to make it significantly easier to modify,
Estimated hours taken: 60
A rewrite of termination analysis to make it significantly easier to modify,
and to extend its capabilities.
compiler/error_util.m:
A new file containing code that makes it easier to generate
nicely formatted error messages.
compiler/termination.m:
Updates to reflect the changes to the representation of termination
information.
Instead of doing pass 1 on all SCCs and then pass 2 on all SCCs,
we now do both pass 1 and 2 on an SCC before moving on to the next.
Do not insist that either all procedures in an SCC are
compiler-generated or all are user-written, since this need not be
true in the presence of user-defined equality predicates.
Clarify the structure of the code that handles builtins and compiler
generated predicates.
Concentrate all the code for updating module_infos in this module.
Previously it was scattered in several places in several files.
Put all the code for writing out termination information at the
end of the module in a logical order.
compiler/term_traversal.m:
A new file containing code used by both pass 1 and pass 2 to
traverse procedure bodies.
compiler/term_pass1.m:
Use the new traversal module.
Clarify the fixpoint computation on the set of output supplier
arguments.
Remove duplicates from the list of equations given to the solver.
This avoids a det stack overflow in lp.m when doing termination
analysis on options.m.
If an output argument of a predicate makes sense only in the absence
of errors, then return it only in the absence of errors.
compiler/term_pass2.m:
Use the new traversal module. Unlike the previous code, this allows us
to ignore recursive calls with input arguments bigger than the head
if those calls occur after goals that cannot succeed (since those
calls will never be reached).
Implement a better way of doing single argument analysis, which
(unlike the previous version) works in the presence of mutual recursion
and other calls between the recursive call and the start of the clause.
Implement a more precise way of checking for recursions that don't
cause termination problems. We now allow calls from p to q in which
the recursive input supplier arguments can grow, provided that on
any path on which q can call p, directly or indirectly, the recursive
input supplier arguments shrink by a greater amount.
If an output argument of a predicate makes sense only in the absence
of errors, then return it only in the absence of errors.
compiler/term_util.m:
Updates to reflect the changes to the representation of termination
information.
Reorder to put related code together.
Change the interface of several predicates to better reflect the
way they are used.
Add some more utility predicates.
compiler/term_errors.m:
Small changes to the set of possible errors, and major changes in
the way the messages are printed out (we now use error_util).
compiler/options.m:
Change --term-single-arg from being a bool to an int option,
whose value indicates the maximum size of an SCC in which we try
single argument analysis. (Large SCCs can cause single-arg analysis
to require a lot of iterations.)
Add an (int) option that controls the max number of paths
that we are willing to analyze (analyzing too many paths can cause
det stack overflow).
Add an (int) option that controls the max number of causes of
nontermination that we print out.
compiler/hlds_pred.m:
Use two separate slots in the proc_info to hold argument size data
and termination info, instead of the single slot used until now.
The two kinds of information are produced and used separately.
Make the layout of the get and set procedures for proc_infos more
regular, to facilitate later updates.
The procedures proc_info_{,set_}variables did the same work as
proc_info_{,set_}varset. To eliminate potential confusion, I
removed the first set.
compiler/*.m:
Change proc_info_{,set_}variables to proc_info_{,set_}varset.
compiler/hlds_out.m:
compiler/make_hlds.m:
compiler/mercury_to_mercury.m:
Change the code to handle the arg size data and the termination
info separately.
compiler/prog_data.m:
Change the internal representation of termination_info pragmas to
hold the arg size data and the termination info separately.
compiler/prog_io_pragma.m:
Change the external representation of termination_info pragmas to
group the arg size data together with the output supplier data,
to which it is logically connected.
compiler/module_qual.m:
compiler/modules.m:
Change the code to accommodate the change to the internal
representation of termination_info pragmas.
compiler/notes/compiler_design.html:
Fix some documentation rot, and clarify some points.
Document termination analysis.
doc/user_guide.texi:
Document --term-single-arg and the new options.
Remove spaces from the ends of lines.
library/bag.m:
Add a new predicate, bag__least_upper_bound.
Fix code that would do the wrong thing if executed by Prolog.
Remove spaces from the ends of lines.
library/list.m:
Add a new predicate, list__take_upto.
library/set{,_ordlist}.m:
Add a new predicate, set{,_ordlist}__count.
tests/term/*:
A bunch of new test cases to test the behaviour of termination
analysis. They are the small benchmark suite from our paper.
tests/Mmakefile:
Enable the new test case directory.
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